123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515151615171518151915201521152215231524152515261527152815291530153115321533153415351536153715381539154015411542154315441545154615471548154915501551155215531554155515561557155815591560156115621563156415651566156715681569157015711572157315741575157615771578157915801581158215831584158515861587158815891590159115921593159415951596159715981599160016011602160316041605160616071608160916101611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659166016611662166316641665166616671668166916701671167216731674167516761677167816791680168116821683168416851686168716881689169016911692169316941695169616971698169917001701170217031704170517061707170817091710171117121713171417151716171717181719172017211722172317241725172617271728172917301731173217331734173517361737173817391740174117421743174417451746174717481749175017511752175317541755175617571758175917601761176217631764176517661767176817691770177117721773177417751776177717781779178017811782178317841785178617871788178917901791179217931794179517961797179817991800180118021803180418051806180718081809181018111812181318141815181618171818181918201821182218231824182518261827182818291830183118321833183418351836183718381839184018411842184318441845184618471848184918501851185218531854185518561857185818591860186118621863186418651866186718681869187018711872187318741875187618771878187918801881188218831884188518861887188818891890189118921893189418951896189718981899190019011902190319041905190619071908190919101911191219131914191519161917191819191920192119221923192419251926192719281929193019311932193319341935193619371938193919401941194219431944194519461947194819491950195119521953195419551956195719581959196019611962196319641965196619671968196919701971197219731974197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037203820392040204120422043204420452046204720482049205020512052205320542055205620572058205920602061206220632064206520662067206820692070207120722073207420752076207720782079208020812082208320842085208620872088208920902091209220932094209520962097209820992100210121022103210421052106210721082109211021112112211321142115211621172118211921202121212221232124212521262127212821292130213121322133213421352136213721382139214021412142214321442145214621472148214921502151215221532154215521562157215821592160216121622163216421652166216721682169217021712172217321742175217621772178217921802181218221832184218521862187218821892190219121922193219421952196219721982199220022012202220322042205220622072208220922102211221222132214221522162217221822192220222122222223222422252226222722282229223022312232223322342235223622372238223922402241224222432244224522462247224822492250225122522253225422552256225722582259226022612262226322642265226622672268226922702271227222732274227522762277227822792280228122822283228422852286228722882289229022912292229322942295229622972298229923002301230223032304230523062307230823092310231123122313231423152316231723182319232023212322232323242325232623272328232923302331233223332334233523362337233823392340234123422343234423452346234723482349235023512352235323542355235623572358235923602361236223632364236523662367236823692370237123722373237423752376237723782379238023812382238323842385238623872388238923902391239223932394239523962397239823992400240124022403240424052406240724082409241024112412241324142415241624172418241924202421242224232424242524262427242824292430243124322433243424352436243724382439244024412442244324442445244624472448244924502451245224532454245524562457245824592460246124622463246424652466246724682469247024712472247324742475247624772478247924802481248224832484248524862487248824892490249124922493249424952496249724982499250025012502250325042505250625072508250925102511251225132514251525162517251825192520252125222523252425252526252725282529253025312532253325342535253625372538253925402541254225432544254525462547254825492550255125522553255425552556255725582559256025612562256325642565256625672568256925702571257225732574257525762577257825792580258125822583258425852586258725882589259025912592259325942595259625972598259926002601260226032604260526062607260826092610261126122613261426152616261726182619262026212622262326242625262626272628262926302631263226332634263526362637263826392640264126422643264426452646264726482649265026512652265326542655265626572658265926602661266226632664266526662667266826692670267126722673267426752676267726782679268026812682268326842685268626872688268926902691269226932694269526962697269826992700270127022703270427052706270727082709271027112712271327142715271627172718271927202721272227232724272527262727272827292730273127322733273427352736273727382739274027412742274327442745274627472748274927502751275227532754275527562757275827592760276127622763276427652766276727682769277027712772277327742775277627772778277927802781278227832784278527862787278827892790279127922793279427952796279727982799280028012802280328042805280628072808280928102811281228132814281528162817281828192820282128222823282428252826282728282829283028312832283328342835283628372838283928402841284228432844284528462847284828492850285128522853285428552856285728582859286028612862286328642865286628672868286928702871287228732874287528762877287828792880288128822883288428852886288728882889289028912892289328942895289628972898289929002901290229032904290529062907290829092910291129122913291429152916291729182919292029212922292329242925292629272928292929302931293229332934293529362937293829392940294129422943294429452946294729482949295029512952295329542955295629572958295929602961296229632964296529662967296829692970297129722973297429752976297729782979298029812982298329842985298629872988298929902991299229932994299529962997299829993000300130023003300430053006300730083009301030113012301330143015301630173018301930203021302230233024302530263027302830293030303130323033303430353036303730383039304030413042304330443045304630473048304930503051305230533054305530563057305830593060306130623063306430653066306730683069307030713072307330743075307630773078307930803081308230833084308530863087308830893090309130923093309430953096309730983099310031013102310331043105310631073108310931103111311231133114311531163117311831193120312131223123312431253126312731283129313031313132313331343135313631373138313931403141314231433144314531463147314831493150315131523153315431553156315731583159316031613162316331643165316631673168316931703171317231733174317531763177317831793180318131823183318431853186318731883189319031913192319331943195319631973198319932003201320232033204320532063207320832093210321132123213321432153216321732183219322032213222322332243225322632273228322932303231323232333234323532363237323832393240324132423243324432453246324732483249325032513252325332543255325632573258325932603261326232633264326532663267326832693270327132723273327432753276327732783279328032813282328332843285328632873288328932903291329232933294329532963297329832993300330133023303330433053306330733083309331033113312331333143315331633173318331933203321332233233324332533263327332833293330333133323333333433353336333733383339334033413342334333443345334633473348334933503351335233533354335533563357335833593360336133623363336433653366336733683369337033713372337333743375337633773378337933803381338233833384338533863387338833893390339133923393339433953396339733983399340034013402340334043405340634073408340934103411341234133414341534163417341834193420342134223423342434253426342734283429343034313432343334343435343634373438343934403441344234433444344534463447344834493450345134523453345434553456345734583459346034613462346334643465346634673468346934703471347234733474347534763477347834793480348134823483348434853486348734883489349034913492349334943495349634973498349935003501350235033504350535063507350835093510351135123513351435153516351735183519352035213522352335243525352635273528352935303531353235333534353535363537353835393540354135423543354435453546354735483549355035513552355335543555355635573558355935603561356235633564356535663567356835693570357135723573357435753576357735783579358035813582358335843585358635873588358935903591359235933594359535963597359835993600360136023603360436053606360736083609361036113612361336143615361636173618361936203621362236233624362536263627362836293630363136323633363436353636363736383639364036413642364336443645364636473648364936503651365236533654365536563657365836593660366136623663366436653666366736683669367036713672367336743675367636773678367936803681368236833684368536863687368836893690369136923693369436953696369736983699370037013702370337043705370637073708370937103711371237133714371537163717371837193720372137223723372437253726372737283729373037313732373337343735373637373738373937403741374237433744374537463747374837493750375137523753375437553756375737583759376037613762376337643765376637673768376937703771377237733774377537763777377837793780378137823783378437853786378737883789379037913792379337943795379637973798379938003801380238033804380538063807380838093810381138123813381438153816381738183819382038213822382338243825382638273828382938303831383238333834383538363837383838393840384138423843384438453846384738483849385038513852385338543855385638573858385938603861386238633864386538663867386838693870387138723873387438753876387738783879388038813882388338843885388638873888388938903891389238933894389538963897389838993900390139023903390439053906390739083909391039113912391339143915391639173918391939203921392239233924392539263927392839293930393139323933393439353936393739383939394039413942394339443945394639473948394939503951395239533954395539563957395839593960396139623963396439653966396739683969397039713972397339743975397639773978397939803981398239833984398539863987398839893990399139923993399439953996399739983999400040014002400340044005400640074008400940104011401240134014401540164017401840194020402140224023402440254026402740284029403040314032403340344035403640374038403940404041404240434044404540464047404840494050405140524053405440554056405740584059406040614062406340644065406640674068406940704071407240734074407540764077407840794080408140824083408440854086408740884089409040914092409340944095409640974098409941004101410241034104410541064107410841094110411141124113411441154116411741184119412041214122412341244125412641274128412941304131413241334134413541364137413841394140414141424143414441454146414741484149415041514152415341544155415641574158415941604161416241634164416541664167416841694170417141724173417441754176417741784179418041814182418341844185418641874188418941904191419241934194419541964197419841994200420142024203420442054206420742084209421042114212421342144215421642174218421942204221422242234224422542264227422842294230423142324233423442354236423742384239424042414242424342444245424642474248424942504251425242534254425542564257425842594260426142624263426442654266426742684269427042714272427342744275427642774278427942804281428242834284428542864287428842894290429142924293429442954296429742984299430043014302430343044305430643074308430943104311431243134314431543164317431843194320432143224323432443254326432743284329433043314332433343344335433643374338433943404341434243434344434543464347434843494350435143524353435443554356435743584359436043614362436343644365436643674368436943704371437243734374437543764377437843794380438143824383438443854386438743884389439043914392439343944395439643974398439944004401440244034404440544064407440844094410441144124413441444154416441744184419442044214422442344244425442644274428442944304431443244334434443544364437443844394440444144424443444444454446444744484449445044514452445344544455445644574458445944604461446244634464446544664467446844694470447144724473447444754476447744784479448044814482448344844485448644874488448944904491449244934494449544964497449844994500450145024503450445054506450745084509451045114512451345144515451645174518451945204521452245234524452545264527452845294530453145324533453445354536453745384539454045414542454345444545454645474548454945504551455245534554455545564557455845594560456145624563456445654566456745684569457045714572457345744575457645774578457945804581458245834584458545864587458845894590459145924593459445954596459745984599460046014602460346044605460646074608460946104611461246134614461546164617461846194620462146224623462446254626462746284629463046314632463346344635463646374638463946404641464246434644464546464647464846494650465146524653465446554656465746584659466046614662466346644665466646674668466946704671467246734674467546764677467846794680468146824683468446854686468746884689469046914692469346944695469646974698469947004701470247034704470547064707470847094710471147124713471447154716471747184719472047214722472347244725472647274728472947304731473247334734473547364737473847394740474147424743474447454746474747484749475047514752475347544755475647574758475947604761476247634764476547664767476847694770477147724773477447754776477747784779478047814782478347844785478647874788478947904791479247934794479547964797479847994800480148024803480448054806480748084809481048114812481348144815481648174818481948204821482248234824482548264827482848294830483148324833483448354836483748384839484048414842484348444845484648474848484948504851485248534854485548564857485848594860486148624863486448654866486748684869487048714872487348744875487648774878487948804881488248834884488548864887488848894890489148924893489448954896489748984899490049014902490349044905490649074908490949104911491249134914491549164917491849194920492149224923492449254926492749284929493049314932493349344935493649374938493949404941494249434944494549464947494849494950495149524953495449554956495749584959496049614962496349644965496649674968496949704971497249734974497549764977497849794980498149824983498449854986498749884989499049914992499349944995499649974998499950005001500250035004500550065007500850095010501150125013501450155016501750185019502050215022502350245025502650275028502950305031503250335034503550365037503850395040504150425043504450455046504750485049505050515052505350545055505650575058505950605061506250635064506550665067506850695070507150725073507450755076507750785079508050815082508350845085508650875088508950905091509250935094509550965097509850995100510151025103510451055106510751085109511051115112511351145115511651175118511951205121512251235124512551265127512851295130513151325133513451355136513751385139514051415142514351445145514651475148514951505151515251535154515551565157515851595160516151625163516451655166516751685169517051715172517351745175517651775178517951805181518251835184518551865187518851895190519151925193519451955196519751985199520052015202520352045205520652075208520952105211521252135214521552165217521852195220522152225223522452255226522752285229523052315232523352345235523652375238523952405241524252435244524552465247524852495250525152525253525452555256525752585259526052615262526352645265526652675268526952705271527252735274527552765277527852795280528152825283528452855286528752885289529052915292529352945295529652975298529953005301530253035304530553065307530853095310531153125313531453155316531753185319532053215322532353245325532653275328532953305331533253335334533553365337533853395340534153425343534453455346534753485349535053515352535353545355535653575358535953605361536253635364536553665367536853695370537153725373537453755376537753785379538053815382538353845385538653875388538953905391539253935394539553965397539853995400540154025403540454055406540754085409541054115412541354145415541654175418541954205421542254235424542554265427542854295430543154325433543454355436543754385439544054415442544354445445544654475448544954505451545254535454545554565457545854595460546154625463546454655466546754685469547054715472547354745475547654775478547954805481548254835484548554865487548854895490549154925493549454955496549754985499550055015502550355045505550655075508550955105511551255135514551555165517551855195520552155225523552455255526552755285529553055315532553355345535553655375538553955405541554255435544554555465547554855495550555155525553555455555556555755585559556055615562556355645565556655675568556955705571557255735574557555765577557855795580558155825583558455855586558755885589559055915592559355945595559655975598559956005601560256035604560556065607560856095610561156125613561456155616561756185619562056215622562356245625562656275628562956305631563256335634563556365637563856395640564156425643564456455646564756485649565056515652565356545655565656575658565956605661566256635664566556665667566856695670567156725673567456755676567756785679568056815682568356845685568656875688568956905691569256935694569556965697569856995700570157025703570457055706570757085709571057115712571357145715571657175718571957205721572257235724572557265727572857295730573157325733573457355736573757385739574057415742574357445745574657475748574957505751575257535754575557565757575857595760576157625763576457655766576757685769577057715772577357745775577657775778577957805781578257835784578557865787578857895790579157925793579457955796579757985799580058015802580358045805580658075808580958105811581258135814581558165817581858195820582158225823582458255826582758285829583058315832583358345835583658375838583958405841584258435844584558465847584858495850585158525853585458555856585758585859586058615862586358645865586658675868586958705871587258735874587558765877587858795880588158825883588458855886588758885889589058915892589358945895589658975898589959005901590259035904590559065907590859095910591159125913591459155916591759185919592059215922592359245925592659275928592959305931593259335934593559365937593859395940594159425943594459455946594759485949595059515952595359545955595659575958595959605961596259635964596559665967596859695970597159725973597459755976597759785979598059815982598359845985598659875988598959905991599259935994599559965997599859996000600160026003600460056006600760086009601060116012601360146015601660176018601960206021602260236024602560266027602860296030603160326033603460356036603760386039604060416042604360446045604660476048604960506051605260536054605560566057605860596060606160626063606460656066606760686069607060716072607360746075607660776078607960806081608260836084608560866087608860896090609160926093609460956096609760986099610061016102610361046105610661076108610961106111611261136114611561166117611861196120612161226123612461256126612761286129613061316132613361346135613661376138613961406141614261436144614561466147614861496150615161526153615461556156615761586159616061616162616361646165616661676168616961706171617261736174617561766177617861796180618161826183618461856186618761886189619061916192619361946195619661976198619962006201620262036204620562066207620862096210621162126213621462156216621762186219622062216222622362246225622662276228622962306231623262336234623562366237623862396240624162426243624462456246624762486249625062516252625362546255625662576258625962606261626262636264626562666267626862696270627162726273627462756276627762786279628062816282628362846285628662876288628962906291629262936294629562966297629862996300630163026303630463056306630763086309631063116312631363146315631663176318631963206321632263236324632563266327632863296330633163326333633463356336633763386339634063416342634363446345634663476348634963506351635263536354635563566357635863596360636163626363636463656366636763686369637063716372637363746375637663776378637963806381638263836384638563866387638863896390639163926393639463956396639763986399640064016402640364046405640664076408640964106411641264136414641564166417641864196420642164226423642464256426642764286429643064316432643364346435643664376438643964406441644264436444644564466447644864496450645164526453645464556456645764586459646064616462646364646465646664676468646964706471647264736474647564766477647864796480648164826483648464856486648764886489649064916492649364946495649664976498649965006501650265036504650565066507650865096510651165126513651465156516651765186519652065216522652365246525652665276528652965306531653265336534653565366537653865396540654165426543654465456546654765486549655065516552655365546555655665576558655965606561656265636564656565666567656865696570657165726573657465756576657765786579658065816582658365846585658665876588658965906591659265936594659565966597659865996600660166026603660466056606660766086609661066116612661366146615661666176618661966206621662266236624662566266627662866296630663166326633663466356636663766386639664066416642664366446645664666476648664966506651665266536654665566566657665866596660666166626663666466656666666766686669667066716672667366746675667666776678667966806681668266836684668566866687668866896690669166926693669466956696669766986699670067016702670367046705670667076708670967106711671267136714671567166717671867196720672167226723672467256726672767286729673067316732673367346735673667376738673967406741674267436744674567466747674867496750675167526753675467556756675767586759676067616762676367646765676667676768676967706771677267736774677567766777677867796780678167826783678467856786678767886789679067916792679367946795679667976798679968006801680268036804680568066807680868096810681168126813681468156816681768186819682068216822682368246825682668276828682968306831683268336834683568366837683868396840684168426843684468456846684768486849685068516852685368546855685668576858685968606861686268636864686568666867686868696870687168726873687468756876687768786879688068816882688368846885688668876888688968906891689268936894689568966897689868996900690169026903690469056906690769086909691069116912691369146915691669176918691969206921692269236924692569266927692869296930693169326933693469356936693769386939694069416942694369446945694669476948694969506951695269536954695569566957695869596960696169626963696469656966696769686969697069716972697369746975697669776978697969806981698269836984698569866987698869896990699169926993699469956996699769986999700070017002700370047005700670077008700970107011701270137014701570167017701870197020702170227023702470257026702770287029703070317032703370347035703670377038703970407041704270437044704570467047704870497050705170527053705470557056705770587059706070617062706370647065706670677068706970707071707270737074707570767077707870797080708170827083708470857086708770887089709070917092709370947095709670977098709971007101710271037104710571067107710871097110711171127113711471157116711771187119712071217122712371247125712671277128712971307131713271337134713571367137713871397140714171427143714471457146714771487149715071517152715371547155715671577158715971607161716271637164716571667167716871697170717171727173717471757176717771787179718071817182718371847185718671877188718971907191719271937194719571967197719871997200720172027203720472057206720772087209721072117212721372147215721672177218721972207221722272237224722572267227722872297230723172327233723472357236723772387239724072417242724372447245724672477248724972507251725272537254725572567257725872597260726172627263726472657266726772687269727072717272727372747275727672777278727972807281728272837284728572867287728872897290729172927293729472957296729772987299730073017302730373047305730673077308730973107311731273137314731573167317731873197320732173227323732473257326732773287329733073317332733373347335733673377338733973407341734273437344734573467347734873497350735173527353735473557356735773587359736073617362736373647365736673677368736973707371737273737374737573767377737873797380738173827383738473857386738773887389739073917392739373947395739673977398739974007401740274037404740574067407740874097410741174127413741474157416741774187419742074217422742374247425742674277428742974307431743274337434743574367437743874397440744174427443744474457446744774487449745074517452745374547455745674577458745974607461746274637464746574667467746874697470747174727473747474757476747774787479748074817482748374847485748674877488748974907491749274937494749574967497749874997500750175027503750475057506750775087509751075117512751375147515751675177518751975207521752275237524752575267527752875297530753175327533753475357536753775387539754075417542754375447545754675477548754975507551755275537554755575567557755875597560756175627563756475657566756775687569757075717572757375747575757675777578757975807581758275837584758575867587758875897590759175927593759475957596759775987599760076017602760376047605760676077608760976107611761276137614761576167617761876197620762176227623762476257626762776287629763076317632763376347635763676377638763976407641764276437644764576467647764876497650765176527653765476557656765776587659766076617662766376647665766676677668766976707671767276737674767576767677767876797680768176827683768476857686768776887689769076917692769376947695769676977698769977007701770277037704770577067707770877097710771177127713771477157716771777187719772077217722772377247725772677277728772977307731773277337734773577367737773877397740774177427743774477457746774777487749775077517752775377547755775677577758775977607761776277637764776577667767776877697770777177727773777477757776777777787779778077817782778377847785778677877788778977907791779277937794779577967797779877997800780178027803780478057806780778087809781078117812781378147815781678177818781978207821782278237824782578267827782878297830783178327833783478357836783778387839784078417842784378447845784678477848784978507851785278537854785578567857785878597860786178627863786478657866786778687869787078717872787378747875787678777878787978807881788278837884788578867887788878897890789178927893789478957896789778987899790079017902790379047905790679077908790979107911791279137914791579167917791879197920792179227923792479257926792779287929793079317932793379347935793679377938793979407941794279437944794579467947794879497950795179527953795479557956795779587959796079617962796379647965796679677968796979707971797279737974797579767977797879797980798179827983798479857986798779887989799079917992799379947995799679977998799980008001800280038004800580068007800880098010801180128013801480158016801780188019802080218022802380248025802680278028802980308031803280338034803580368037803880398040804180428043804480458046804780488049805080518052805380548055805680578058805980608061806280638064806580668067806880698070807180728073807480758076807780788079808080818082808380848085808680878088808980908091809280938094809580968097809880998100810181028103810481058106810781088109811081118112811381148115811681178118811981208121812281238124812581268127812881298130813181328133813481358136813781388139814081418142814381448145814681478148814981508151815281538154815581568157815881598160816181628163816481658166816781688169817081718172817381748175817681778178817981808181818281838184818581868187818881898190819181928193819481958196819781988199820082018202820382048205820682078208820982108211821282138214821582168217821882198220822182228223822482258226822782288229823082318232823382348235823682378238823982408241824282438244824582468247824882498250825182528253825482558256825782588259826082618262826382648265826682678268826982708271827282738274827582768277827882798280828182828283828482858286828782888289829082918292829382948295829682978298829983008301830283038304830583068307830883098310831183128313831483158316831783188319832083218322832383248325832683278328832983308331833283338334833583368337833883398340834183428343834483458346834783488349835083518352835383548355835683578358835983608361836283638364836583668367836883698370837183728373837483758376837783788379838083818382838383848385838683878388838983908391839283938394839583968397839883998400840184028403840484058406840784088409841084118412841384148415841684178418841984208421842284238424842584268427842884298430843184328433843484358436843784388439844084418442844384448445844684478448844984508451845284538454845584568457845884598460846184628463846484658466846784688469847084718472847384748475847684778478847984808481848284838484848584868487848884898490849184928493849484958496849784988499850085018502850385048505850685078508850985108511851285138514851585168517851885198520852185228523852485258526852785288529853085318532853385348535853685378538853985408541854285438544854585468547854885498550855185528553855485558556855785588559856085618562856385648565856685678568856985708571857285738574857585768577857885798580858185828583858485858586858785888589859085918592859385948595859685978598859986008601860286038604860586068607860886098610861186128613861486158616861786188619862086218622862386248625862686278628862986308631863286338634863586368637863886398640864186428643864486458646864786488649865086518652865386548655865686578658865986608661866286638664866586668667866886698670867186728673867486758676867786788679868086818682868386848685868686878688868986908691869286938694869586968697869886998700870187028703870487058706870787088709871087118712871387148715871687178718871987208721872287238724872587268727872887298730873187328733873487358736873787388739874087418742874387448745874687478748874987508751875287538754875587568757875887598760876187628763876487658766876787688769877087718772877387748775877687778778877987808781878287838784878587868787878887898790879187928793879487958796879787988799880088018802880388048805880688078808880988108811881288138814881588168817881888198820882188228823882488258826882788288829883088318832883388348835883688378838883988408841884288438844884588468847884888498850885188528853885488558856885788588859886088618862886388648865886688678868886988708871887288738874887588768877887888798880888188828883888488858886888788888889889088918892889388948895889688978898889989008901890289038904890589068907890889098910891189128913891489158916891789188919892089218922892389248925892689278928892989308931893289338934893589368937893889398940894189428943894489458946894789488949895089518952895389548955895689578958895989608961896289638964896589668967896889698970897189728973897489758976897789788979898089818982898389848985898689878988898989908991899289938994899589968997899889999000900190029003900490059006900790089009901090119012901390149015901690179018901990209021902290239024902590269027902890299030903190329033903490359036903790389039904090419042904390449045904690479048904990509051905290539054905590569057905890599060906190629063906490659066906790689069907090719072907390749075907690779078907990809081908290839084908590869087908890899090909190929093909490959096909790989099910091019102910391049105910691079108910991109111911291139114911591169117911891199120912191229123912491259126912791289129913091319132913391349135913691379138913991409141914291439144914591469147914891499150915191529153915491559156915791589159916091619162916391649165916691679168916991709171917291739174917591769177917891799180 |
- /*
- Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com
- (c) 2010-2013, Vladimir Agafonkin
- (c) 2010-2011, CloudMade
- */
- (function (window, document, undefined) {
- var oldL = window.L,
- L = {};
- L.version = '0.7.3';
- // define Leaflet for Node module pattern loaders, including Browserify
- if (typeof module === 'object' && typeof module.exports === 'object') {
- module.exports = L;
- // define Leaflet as an AMD module
- } else if (typeof define === 'function' && define.amd) {
- define(L);
- }
- // define Leaflet as a global L variable, saving the original L to restore later if needed
- L.noConflict = function () {
- window.L = oldL;
- return this;
- };
- window.L = L;
- /*
- * L.Util contains various utility functions used throughout Leaflet code.
- */
- L.Util = {
- extend: function (dest) { // (Object[, Object, ...]) ->
- var sources = Array.prototype.slice.call(arguments, 1),
- i, j, len, src;
- for (j = 0, len = sources.length; j < len; j++) {
- src = sources[j] || {};
- for (i in src) {
- if (src.hasOwnProperty(i)) {
- dest[i] = src[i];
- }
- }
- }
- return dest;
- },
- bind: function (fn, obj) { // (Function, Object) -> Function
- var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
- return function () {
- return fn.apply(obj, args || arguments);
- };
- },
- stamp: (function () {
- var lastId = 0,
- key = '_leaflet_id';
- return function (obj) {
- obj[key] = obj[key] || ++lastId;
- return obj[key];
- };
- }()),
- invokeEach: function (obj, method, context) {
- var i, args;
- if (typeof obj === 'object') {
- args = Array.prototype.slice.call(arguments, 3);
- for (i in obj) {
- method.apply(context, [i, obj[i]].concat(args));
- }
- return true;
- }
- return false;
- },
- limitExecByInterval: function (fn, time, context) {
- var lock, execOnUnlock;
- return function wrapperFn() {
- var args = arguments;
- if (lock) {
- execOnUnlock = true;
- return;
- }
- lock = true;
- setTimeout(function () {
- lock = false;
- if (execOnUnlock) {
- wrapperFn.apply(context, args);
- execOnUnlock = false;
- }
- }, time);
- fn.apply(context, args);
- };
- },
- falseFn: function () {
- return false;
- },
- formatNum: function (num, digits) {
- var pow = Math.pow(10, digits || 5);
- return Math.round(num * pow) / pow;
- },
- trim: function (str) {
- return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
- },
- splitWords: function (str) {
- return L.Util.trim(str).split(/\s+/);
- },
- setOptions: function (obj, options) {
- obj.options = L.extend({}, obj.options, options);
- return obj.options;
- },
- getParamString: function (obj, existingUrl, uppercase) {
- var params = [];
- for (var i in obj) {
- params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
- }
- return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
- },
- template: function (str, data) {
- return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
- var value = data[key];
- if (value === undefined) {
- throw new Error('No value provided for variable ' + str);
- } else if (typeof value === 'function') {
- value = value(data);
- }
- return value;
- });
- },
- isArray: Array.isArray || function (obj) {
- return (Object.prototype.toString.call(obj) === '[object Array]');
- },
- emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
- };
- (function () {
- // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- function getPrefixed(name) {
- var i, fn,
- prefixes = ['webkit', 'moz', 'o', 'ms'];
- for (i = 0; i < prefixes.length && !fn; i++) {
- fn = window[prefixes[i] + name];
- }
- return fn;
- }
- var lastTime = 0;
- function timeoutDefer(fn) {
- var time = +allGetServerTime(),
- timeToCall = Math.max(0, 16 - (time - lastTime));
- lastTime = time + timeToCall;
- return window.setTimeout(fn, timeToCall);
- }
- var requestFn = window.requestAnimationFrame ||
- getPrefixed('RequestAnimationFrame') || timeoutDefer;
- var cancelFn = window.cancelAnimationFrame ||
- getPrefixed('CancelAnimationFrame') ||
- getPrefixed('CancelRequestAnimationFrame') ||
- function (id) { window.clearTimeout(id); };
- L.Util.requestAnimFrame = function (fn, context, immediate, element) {
- fn = L.bind(fn, context);
- if (immediate && requestFn === timeoutDefer) {
- fn();
- } else {
- return requestFn.call(window, fn, element);
- }
- };
- L.Util.cancelAnimFrame = function (id) {
- if (id) {
- cancelFn.call(window, id);
- }
- };
- }());
- // shortcuts for most used utility functions
- L.extend = L.Util.extend;
- L.bind = L.Util.bind;
- L.stamp = L.Util.stamp;
- L.setOptions = L.Util.setOptions;
- /*
- * L.Class powers the OOP facilities of the library.
- * Thanks to John Resig and Dean Edwards for inspiration!
- */
- L.Class = function () {};
- L.Class.extend = function (props) {
- // extended class with the new prototype
- var NewClass = function () {
- // call the constructor
- if (this.initialize) {
- this.initialize.apply(this, arguments);
- }
- // call all constructor hooks
- if (this._initHooks) {
- this.callInitHooks();
- }
- };
- // instantiate class without calling constructor
- var F = function () {};
- F.prototype = this.prototype;
- var proto = new F();
- proto.constructor = NewClass;
- NewClass.prototype = proto;
- //inherit parent's statics
- for (var i in this) {
- if (this.hasOwnProperty(i) && i !== 'prototype') {
- NewClass[i] = this[i];
- }
- }
- // mix static properties into the class
- if (props.statics) {
- L.extend(NewClass, props.statics);
- delete props.statics;
- }
- // mix includes into the prototype
- if (props.includes) {
- L.Util.extend.apply(null, [proto].concat(props.includes));
- delete props.includes;
- }
- // merge options
- if (props.options && proto.options) {
- props.options = L.extend({}, proto.options, props.options);
- }
- // mix given properties into the prototype
- L.extend(proto, props);
- proto._initHooks = [];
- var parent = this;
- // jshint camelcase: false
- NewClass.__super__ = parent.prototype;
- // add method for calling all hooks
- proto.callInitHooks = function () {
- if (this._initHooksCalled) { return; }
- if (parent.prototype.callInitHooks) {
- parent.prototype.callInitHooks.call(this);
- }
- this._initHooksCalled = true;
- for (var i = 0, len = proto._initHooks.length; i < len; i++) {
- proto._initHooks[i].call(this);
- }
- };
- return NewClass;
- };
- // method for adding properties to prototype
- L.Class.include = function (props) {
- L.extend(this.prototype, props);
- };
- // merge new default options to the Class
- L.Class.mergeOptions = function (options) {
- L.extend(this.prototype.options, options);
- };
- // add a constructor hook
- L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
- var args = Array.prototype.slice.call(arguments, 1);
- var init = typeof fn === 'function' ? fn : function () {
- this[fn].apply(this, args);
- };
- this.prototype._initHooks = this.prototype._initHooks || [];
- this.prototype._initHooks.push(init);
- };
- /*
- * L.Mixin.Events is used to add custom events functionality to Leaflet classes.
- */
- var eventsKey = '_leaflet_events';
- L.Mixin = {};
- L.Mixin.Events = {
- addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
- // types can be a map of types/handlers
- if (L.Util.invokeEach(types, this.addEventListener, this, fn, context)) { return this; }
- var events = this[eventsKey] = this[eventsKey] || {},
- contextId = context && context !== this && L.stamp(context),
- i, len, event, type, indexKey, indexLenKey, typeIndex;
- // types can be a string of space-separated words
- types = L.Util.splitWords(types);
- for (i = 0, len = types.length; i < len; i++) {
- event = {
- action: fn,
- context: context || this
- };
- type = types[i];
- if (contextId) {
- // store listeners of a particular context in a separate hash (if it has an id)
- // gives a major performance boost when removing thousands of map layers
- indexKey = type + '_idx';
- indexLenKey = indexKey + '_len';
- typeIndex = events[indexKey] = events[indexKey] || {};
- if (!typeIndex[contextId]) {
- typeIndex[contextId] = [];
- // keep track of the number of keys in the index to quickly check if it's empty
- events[indexLenKey] = (events[indexLenKey] || 0) + 1;
- }
- typeIndex[contextId].push(event);
- } else {
- events[type] = events[type] || [];
- events[type].push(event);
- }
- }
- return this;
- },
- hasEventListeners: function (type) { // (String) -> Boolean
- var events = this[eventsKey];
- return !!events && ((type in events && events[type].length > 0) ||
- (type + '_idx' in events && events[type + '_idx_len'] > 0));
- },
- removeEventListener: function (types, fn, context) { // ([String, Function, Object]) or (Object[, Object])
- if (!this[eventsKey]) {
- return this;
- }
- if (!types) {
- return this.clearAllEventListeners();
- }
- if (L.Util.invokeEach(types, this.removeEventListener, this, fn, context)) { return this; }
- var events = this[eventsKey],
- contextId = context && context !== this && L.stamp(context),
- i, len, type, listeners, j, indexKey, indexLenKey, typeIndex, removed;
- types = L.Util.splitWords(types);
- for (i = 0, len = types.length; i < len; i++) {
- type = types[i];
- indexKey = type + '_idx';
- indexLenKey = indexKey + '_len';
- typeIndex = events[indexKey];
- if (!fn) {
- // clear all listeners for a type if function isn't specified
- delete events[type];
- delete events[indexKey];
- delete events[indexLenKey];
- } else {
- listeners = contextId && typeIndex ? typeIndex[contextId] : events[type];
- if (listeners) {
- for (j = listeners.length - 1; j >= 0; j--) {
- if ((listeners[j].action === fn) && (!context || (listeners[j].context === context))) {
- removed = listeners.splice(j, 1);
- // set the old action to a no-op, because it is possible
- // that the listener is being iterated over as part of a dispatch
- removed[0].action = L.Util.falseFn;
- }
- }
- if (context && typeIndex && (listeners.length === 0)) {
- delete typeIndex[contextId];
- events[indexLenKey]--;
- }
- }
- }
- }
- return this;
- },
- clearAllEventListeners: function () {
- delete this[eventsKey];
- return this;
- },
- fireEvent: function (type, data) { // (String[, Object])
- if (!this.hasEventListeners(type)) {
- return this;
- }
- var event = L.Util.extend({}, data, { type: type, target: this });
- var events = this[eventsKey],
- listeners, i, len, typeIndex, contextId;
- if (events[type]) {
- // make sure adding/removing listeners inside other listeners won't cause infinite loop
- listeners = events[type].slice();
- for (i = 0, len = listeners.length; i < len; i++) {
- listeners[i].action.call(listeners[i].context, event);
- }
- }
- // fire event for the context-indexed listeners as well
- typeIndex = events[type + '_idx'];
- for (contextId in typeIndex) {
- listeners = typeIndex[contextId].slice();
- if (listeners) {
- for (i = 0, len = listeners.length; i < len; i++) {
- listeners[i].action.call(listeners[i].context, event);
- }
- }
- }
- return this;
- },
- addOneTimeEventListener: function (types, fn, context) {
- if (L.Util.invokeEach(types, this.addOneTimeEventListener, this, fn, context)) { return this; }
- var handler = L.bind(function () {
- this
- .removeEventListener(types, fn, context)
- .removeEventListener(types, handler, context);
- }, this);
- return this
- .addEventListener(types, fn, context)
- .addEventListener(types, handler, context);
- }
- };
- L.Mixin.Events.on = L.Mixin.Events.addEventListener;
- L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
- L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener;
- L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
- /*
- * L.Browser handles different browser and feature detections for internal Leaflet use.
- */
- (function () {
- var ie = 'ActiveXObject' in window,
- ielt9 = ie && !document.addEventListener,
- // terrible browser detection to work around Safari / iOS / Android browser bugs
- ua = navigator.userAgent.toLowerCase(),
- webkit = ua.indexOf('webkit') !== -1,
- chrome = ua.indexOf('chrome') !== -1,
- phantomjs = ua.indexOf('phantom') !== -1,
- android = ua.indexOf('android') !== -1,
- android23 = ua.search('android [23]') !== -1,
- gecko = ua.indexOf('gecko') !== -1,
- mobile = typeof orientation !== undefined + '',
- msPointer = window.navigator && window.navigator.msPointerEnabled &&
- window.navigator.msMaxTouchPoints && !window.PointerEvent,
- pointer = (window.PointerEvent && window.navigator.pointerEnabled && window.navigator.maxTouchPoints) ||
- msPointer,
- retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) ||
- ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') &&
- window.matchMedia('(min-resolution:144dpi)').matches),
- doc = document.documentElement,
- ie3d = ie && ('transition' in doc.style),
- webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
- gecko3d = 'MozPerspective' in doc.style,
- opera3d = 'OTransition' in doc.style,
- any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs;
- // PhantomJS has 'ontouchstart' in document.documentElement, but doesn't actually support touch.
- // https://github.com/Leaflet/Leaflet/pull/1434#issuecomment-13843151
- var touch = !window.L_NO_TOUCH && !phantomjs && (function () {
- var startName = 'ontouchstart';
- // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.Pointer) or WebKit, etc.
- if (pointer || (startName in doc)) {
- return true;
- }
- // Firefox/Gecko
- var div = document.createElement('div'),
- supported = false;
- if (!div.setAttribute) {
- return false;
- }
- div.setAttribute(startName, 'return;');
- if (typeof div[startName] === 'function') {
- supported = true;
- }
- div.removeAttribute(startName);
- div = null;
- return supported;
- }());
- L.Browser = {
- ie: ie,
- ielt9: ielt9,
- webkit: webkit,
- gecko: gecko && !webkit && !window.opera && !ie,
- android: android,
- android23: android23,
- chrome: chrome,
- ie3d: ie3d,
- webkit3d: webkit3d,
- gecko3d: gecko3d,
- opera3d: opera3d,
- any3d: any3d,
- mobile: mobile,
- mobileWebkit: mobile && webkit,
- mobileWebkit3d: mobile && webkit3d,
- mobileOpera: mobile && window.opera,
- touch: touch,
- msPointer: msPointer,
- pointer: pointer,
- retina: retina
- };
- }());
- /*
- * L.Point represents a point with x and y coordinates.
- */
- L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
- this.x = (round ? Math.round(x) : x);
- this.y = (round ? Math.round(y) : y);
- };
- L.Point.prototype = {
- clone: function () {
- return new L.Point(this.x, this.y);
- },
- // non-destructive, returns a new point
- add: function (point) {
- return this.clone()._add(L.point(point));
- },
- // destructive, used directly for performance in situations where it's safe to modify existing point
- _add: function (point) {
- this.x += point.x;
- this.y += point.y;
- return this;
- },
- subtract: function (point) {
- return this.clone()._subtract(L.point(point));
- },
- _subtract: function (point) {
- this.x -= point.x;
- this.y -= point.y;
- return this;
- },
- divideBy: function (num) {
- return this.clone()._divideBy(num);
- },
- _divideBy: function (num) {
- this.x /= num;
- this.y /= num;
- return this;
- },
- multiplyBy: function (num) {
- return this.clone()._multiplyBy(num);
- },
- _multiplyBy: function (num) {
- this.x *= num;
- this.y *= num;
- return this;
- },
- round: function () {
- return this.clone()._round();
- },
- _round: function () {
- this.x = Math.round(this.x);
- this.y = Math.round(this.y);
- return this;
- },
- floor: function () {
- return this.clone()._floor();
- },
- _floor: function () {
- this.x = Math.floor(this.x);
- this.y = Math.floor(this.y);
- return this;
- },
- distanceTo: function (point) {
- point = L.point(point);
- var x = point.x - this.x,
- y = point.y - this.y;
- return Math.sqrt(x * x + y * y);
- },
- equals: function (point) {
- point = L.point(point);
- return point.x === this.x &&
- point.y === this.y;
- },
- contains: function (point) {
- point = L.point(point);
- return Math.abs(point.x) <= Math.abs(this.x) &&
- Math.abs(point.y) <= Math.abs(this.y);
- },
- toString: function () {
- return 'Point(' +
- L.Util.formatNum(this.x) + ', ' +
- L.Util.formatNum(this.y) + ')';
- }
- };
- L.point = function (x, y, round) {
- if (x instanceof L.Point) {
- return x;
- }
- if (L.Util.isArray(x)) {
- return new L.Point(x[0], x[1]);
- }
- if (x === undefined || x === null) {
- return x;
- }
- return new L.Point(x, y, round);
- };
- /*
- * L.Bounds represents a rectangular area on the screen in pixel coordinates.
- */
- L.Bounds = function (a, b) { //(Point, Point) or Point[]
- if (!a) { return; }
- var points = b ? [a, b] : a;
- for (var i = 0, len = points.length; i < len; i++) {
- this.extend(points[i]);
- }
- };
- L.Bounds.prototype = {
- // extend the bounds to contain the given point
- extend: function (point) { // (Point)
- point = L.point(point);
- if (!this.min && !this.max) {
- this.min = point.clone();
- this.max = point.clone();
- } else {
- this.min.x = Math.min(point.x, this.min.x);
- this.max.x = Math.max(point.x, this.max.x);
- this.min.y = Math.min(point.y, this.min.y);
- this.max.y = Math.max(point.y, this.max.y);
- }
- return this;
- },
- getCenter: function (round) { // (Boolean) -> Point
- return new L.Point(
- (this.min.x + this.max.x) / 2,
- (this.min.y + this.max.y) / 2, round);
- },
- getBottomLeft: function () { // -> Point
- return new L.Point(this.min.x, this.max.y);
- },
- getTopRight: function () { // -> Point
- return new L.Point(this.max.x, this.min.y);
- },
- getSize: function () {
- return this.max.subtract(this.min);
- },
- contains: function (obj) { // (Bounds) or (Point) -> Boolean
- var min, max;
- if (typeof obj[0] === 'number' || obj instanceof L.Point) {
- obj = L.point(obj);
- } else {
- obj = L.bounds(obj);
- }
- if (obj instanceof L.Bounds) {
- min = obj.min;
- max = obj.max;
- } else {
- min = max = obj;
- }
- return (min.x >= this.min.x) &&
- (max.x <= this.max.x) &&
- (min.y >= this.min.y) &&
- (max.y <= this.max.y);
- },
- intersects: function (bounds) { // (Bounds) -> Boolean
- bounds = L.bounds(bounds);
- var min = this.min,
- max = this.max,
- min2 = bounds.min,
- max2 = bounds.max,
- xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
- yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
- return xIntersects && yIntersects;
- },
- isValid: function () {
- return !!(this.min && this.max);
- }
- };
- L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
- if (!a || a instanceof L.Bounds) {
- return a;
- }
- return new L.Bounds(a, b);
- };
- /*
- * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
- */
- L.Transformation = function (a, b, c, d) {
- this._a = a;
- this._b = b;
- this._c = c;
- this._d = d;
- };
- L.Transformation.prototype = {
- transform: function (point, scale) { // (Point, Number) -> Point
- return this._transform(point.clone(), scale);
- },
- // destructive transform (faster)
- _transform: function (point, scale) {
- scale = scale || 1;
- point.x = scale * (this._a * point.x + this._b);
- point.y = scale * (this._c * point.y + this._d);
- return point;
- },
- untransform: function (point, scale) {
- scale = scale || 1;
- return new L.Point(
- (point.x / scale - this._b) / this._a,
- (point.y / scale - this._d) / this._c);
- }
- };
- /*
- * L.DomUtil contains various utility functions for working with DOM.
- */
- L.DomUtil = {
- get: function (id) {
- return (typeof id === 'string' ? document.getElementById(id) : id);
- },
- getStyle: function (el, style) {
- var value = el.style[style];
- if (!value && el.currentStyle) {
- value = el.currentStyle[style];
- }
- if ((!value || value === 'auto') && document.defaultView) {
- var css = document.defaultView.getComputedStyle(el, null);
- value = css ? css[style] : null;
- }
- return value === 'auto' ? null : value;
- },
- getViewportOffset: function (element) {
- var top = 0,
- left = 0,
- el = element,
- docBody = document.body,
- docEl = document.documentElement,
- pos;
- do {
- top += el.offsetTop || 0;
- left += el.offsetLeft || 0;
- //add borders
- top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0;
- left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0;
- pos = L.DomUtil.getStyle(el, 'position');
- if (el.offsetParent === docBody && pos === 'absolute') { break; }
- if (pos === 'fixed') {
- top += docBody.scrollTop || docEl.scrollTop || 0;
- left += docBody.scrollLeft || docEl.scrollLeft || 0;
- break;
- }
- if (pos === 'relative' && !el.offsetLeft) {
- var width = L.DomUtil.getStyle(el, 'width'),
- maxWidth = L.DomUtil.getStyle(el, 'max-width'),
- r = el.getBoundingClientRect();
- if (width !== 'none' || maxWidth !== 'none') {
- left += r.left + el.clientLeft;
- }
- //calculate full y offset since we're breaking out of the loop
- top += r.top + (docBody.scrollTop || docEl.scrollTop || 0);
- break;
- }
- el = el.offsetParent;
- } while (el);
- el = element;
- do {
- if (el === docBody) { break; }
- top -= el.scrollTop || 0;
- left -= el.scrollLeft || 0;
- el = el.parentNode;
- } while (el);
- return new L.Point(left, top);
- },
- documentIsLtr: function () {
- if (!L.DomUtil._docIsLtrCached) {
- L.DomUtil._docIsLtrCached = true;
- L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr';
- }
- return L.DomUtil._docIsLtr;
- },
- create: function (tagName, className, container) {
- var el = document.createElement(tagName);
- el.className = className;
- if (container) {
- container.appendChild(el);
- }
- return el;
- },
- hasClass: function (el, name) {
- if (el.classList !== undefined) {
- return el.classList.contains(name);
- }
- var className = L.DomUtil._getClass(el);
- return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
- },
- addClass: function (el, name) {
- if (el.classList !== undefined) {
- var classes = L.Util.splitWords(name);
- for (var i = 0, len = classes.length; i < len; i++) {
- el.classList.add(classes[i]);
- }
- } else if (!L.DomUtil.hasClass(el, name)) {
- var className = L.DomUtil._getClass(el);
- L.DomUtil._setClass(el, (className ? className + ' ' : '') + name);
- }
- },
- removeClass: function (el, name) {
- if (el.classList !== undefined) {
- el.classList.remove(name);
- } else {
- L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
- }
- },
- _setClass: function (el, name) {
- if (el.className.baseVal === undefined) {
- el.className = name;
- } else {
- // in case of SVG element
- el.className.baseVal = name;
- }
- },
- _getClass: function (el) {
- return el.className.baseVal === undefined ? el.className : el.className.baseVal;
- },
- setOpacity: function (el, value) {
- if ('opacity' in el.style) {
- el.style.opacity = value;
- } else if ('filter' in el.style) {
- var filter = false,
- filterName = 'DXImageTransform.Microsoft.Alpha';
- // filters collection throws an error if we try to retrieve a filter that doesn't exist
- try {
- filter = el.filters.item(filterName);
- } catch (e) {
- // don't set opacity to 1 if we haven't already set an opacity,
- // it isn't needed and breaks transparent pngs.
- if (value === 1) { return; }
- }
- value = Math.round(value * 100);
- if (filter) {
- filter.Enabled = (value !== 100);
- filter.Opacity = value;
- } else {
- el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
- }
- }
- },
- testProp: function (props) {
- var style = document.documentElement.style;
- for (var i = 0; i < props.length; i++) {
- if (props[i] in style) {
- return props[i];
- }
- }
- return false;
- },
- getTranslateString: function (point) {
- // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate
- // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
- // (same speed either way), Opera 12 doesn't support translate3d
- var is3d = L.Browser.webkit3d,
- open = 'translate' + (is3d ? '3d' : '') + '(',
- close = (is3d ? ',0' : '') + ')';
- return open + point.x + 'px,' + point.y + 'px' + close;
- },
- getScaleString: function (scale, origin) {
- var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))),
- scaleStr = ' scale(' + scale + ') ';
- return preTranslateStr + scaleStr;
- },
- setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean])
- // jshint camelcase: false
- el._leaflet_pos = point;
- if (!disable3D && L.Browser.any3d) {
- el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point);
- } else {
- el.style.left = point.x + 'px';
- el.style.top = point.y + 'px';
- }
- },
- getPosition: function (el) {
- // this method is only used for elements previously positioned using setPosition,
- // so it's safe to cache the position for performance
- // jshint camelcase: false
- return el._leaflet_pos;
- }
- };
- // prefix style property names
- L.DomUtil.TRANSFORM = L.DomUtil.testProp(
- ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
- // webkitTransition comes first because some browser versions that drop vendor prefix don't do
- // the same for the transitionend event, in particular the Android 4.1 stock browser
- L.DomUtil.TRANSITION = L.DomUtil.testProp(
- ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
- L.DomUtil.TRANSITION_END =
- L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
- L.DomUtil.TRANSITION + 'End' : 'transitionend';
- (function () {
- if ('onselectstart' in document) {
- L.extend(L.DomUtil, {
- disableTextSelection: function () {
- L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
- },
- enableTextSelection: function () {
- L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
- }
- });
- } else {
- var userSelectProperty = L.DomUtil.testProp(
- ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
- L.extend(L.DomUtil, {
- disableTextSelection: function () {
- if (userSelectProperty) {
- var style = document.documentElement.style;
- this._userSelect = style[userSelectProperty];
- style[userSelectProperty] = 'none';
- }
- },
- enableTextSelection: function () {
- if (userSelectProperty) {
- document.documentElement.style[userSelectProperty] = this._userSelect;
- delete this._userSelect;
- }
- }
- });
- }
- L.extend(L.DomUtil, {
- disableImageDrag: function () {
- L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
- },
- enableImageDrag: function () {
- L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
- }
- });
- })();
- /*
- * L.LatLng represents a geographical point with latitude and longitude coordinates.
- */
- L.LatLng = function (lat, lng, alt) { // (Number, Number, Number)
- lat = parseFloat(lat);
- lng = parseFloat(lng);
- if (isNaN(lat) || isNaN(lng)) {
- throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
- }
- this.lat = lat;
- this.lng = lng;
- if (alt !== undefined) {
- this.alt = parseFloat(alt);
- }
- };
- L.extend(L.LatLng, {
- DEG_TO_RAD: Math.PI / 180,
- RAD_TO_DEG: 180 / Math.PI,
- MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
- });
- L.LatLng.prototype = {
- equals: function (obj) { // (LatLng) -> Boolean
- if (!obj) { return false; }
- obj = L.latLng(obj);
- var margin = Math.max(
- Math.abs(this.lat - obj.lat),
- Math.abs(this.lng - obj.lng));
- return margin <= L.LatLng.MAX_MARGIN;
- },
- toString: function (precision) { // (Number) -> String
- return 'LatLng(' +
- L.Util.formatNum(this.lat, precision) + ', ' +
- L.Util.formatNum(this.lng, precision) + ')';
- },
- // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
- // TODO move to projection code, LatLng shouldn't know about Earth
- distanceTo: function (other) { // (LatLng) -> Number
- other = L.latLng(other);
- var R = 6378137, // earth radius in meters
- d2r = L.LatLng.DEG_TO_RAD,
- dLat = (other.lat - this.lat) * d2r,
- dLon = (other.lng - this.lng) * d2r,
- lat1 = this.lat * d2r,
- lat2 = other.lat * d2r,
- sin1 = Math.sin(dLat / 2),
- sin2 = Math.sin(dLon / 2);
- var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
- return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
- },
- wrap: function (a, b) { // (Number, Number) -> LatLng
- var lng = this.lng;
- a = a || -180;
- b = b || 180;
- lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a);
- return new L.LatLng(this.lat, lng);
- }
- };
- L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number)
- if (a instanceof L.LatLng) {
- return a;
- }
- if (L.Util.isArray(a)) {
- if (typeof a[0] === 'number' || typeof a[0] === 'string') {
- return new L.LatLng(a[0], a[1], a[2]);
- } else {
- return null;
- }
- }
- if (a === undefined || a === null) {
- return a;
- }
- if (typeof a === 'object' && 'lat' in a) {
- return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
- }
- if (b === undefined) {
- return null;
- }
- return new L.LatLng(a, b);
- };
- /*
- * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
- */
- L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
- if (!southWest) { return; }
- var latlngs = northEast ? [southWest, northEast] : southWest;
- for (var i = 0, len = latlngs.length; i < len; i++) {
- this.extend(latlngs[i]);
- }
- };
- L.LatLngBounds.prototype = {
- // extend the bounds to contain the given point or bounds
- extend: function (obj) { // (LatLng) or (LatLngBounds)
- if (!obj) { return this; }
- var latLng = L.latLng(obj);
- if (latLng !== null) {
- obj = latLng;
- } else {
- obj = L.latLngBounds(obj);
- }
- if (obj instanceof L.LatLng) {
- if (!this._southWest && !this._northEast) {
- this._southWest = new L.LatLng(obj.lat, obj.lng);
- this._northEast = new L.LatLng(obj.lat, obj.lng);
- } else {
- this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
- this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
- this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
- this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
- }
- } else if (obj instanceof L.LatLngBounds) {
- this.extend(obj._southWest);
- this.extend(obj._northEast);
- }
- return this;
- },
- // extend the bounds by a percentage
- pad: function (bufferRatio) { // (Number) -> LatLngBounds
- var sw = this._southWest,
- ne = this._northEast,
- heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
- widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
- return new L.LatLngBounds(
- new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
- new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
- },
- getCenter: function () { // -> LatLng
- return new L.LatLng(
- (this._southWest.lat + this._northEast.lat) / 2,
- (this._southWest.lng + this._northEast.lng) / 2);
- },
- getSouthWest: function () {
- return this._southWest;
- },
- getNorthEast: function () {
- return this._northEast;
- },
- getNorthWest: function () {
- return new L.LatLng(this.getNorth(), this.getWest());
- },
- getSouthEast: function () {
- return new L.LatLng(this.getSouth(), this.getEast());
- },
- getWest: function () {
- return this._southWest.lng;
- },
- getSouth: function () {
- return this._southWest.lat;
- },
- getEast: function () {
- return this._northEast.lng;
- },
- getNorth: function () {
- return this._northEast.lat;
- },
- contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
- if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
- obj = L.latLng(obj);
- } else {
- obj = L.latLngBounds(obj);
- }
- var sw = this._southWest,
- ne = this._northEast,
- sw2, ne2;
- if (obj instanceof L.LatLngBounds) {
- sw2 = obj.getSouthWest();
- ne2 = obj.getNorthEast();
- } else {
- sw2 = ne2 = obj;
- }
- return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
- (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
- },
- intersects: function (bounds) { // (LatLngBounds)
- bounds = L.latLngBounds(bounds);
- var sw = this._southWest,
- ne = this._northEast,
- sw2 = bounds.getSouthWest(),
- ne2 = bounds.getNorthEast(),
- latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
- lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
- return latIntersects && lngIntersects;
- },
- toBBoxString: function () {
- return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
- },
- equals: function (bounds) { // (LatLngBounds)
- if (!bounds) { return false; }
- bounds = L.latLngBounds(bounds);
- return this._southWest.equals(bounds.getSouthWest()) &&
- this._northEast.equals(bounds.getNorthEast());
- },
- isValid: function () {
- return !!(this._southWest && this._northEast);
- }
- };
- //TODO International date line?
- L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
- if (!a || a instanceof L.LatLngBounds) {
- return a;
- }
- return new L.LatLngBounds(a, b);
- };
- /*
- * L.Projection contains various geographical projections used by CRS classes.
- */
- L.Projection = {};
- /*
- * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
- */
- L.Projection.SphericalMercator = {
- MAX_LATITUDE: 85.0511287798,
- project: function (latlng) { // (LatLng) -> Point
- var d = L.LatLng.DEG_TO_RAD,
- max = this.MAX_LATITUDE,
- lat = Math.max(Math.min(max, latlng.lat), -max),
- x = latlng.lng * d,
- y = lat * d;
- y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
- return new L.Point(x, y);
- },
- unproject: function (point) { // (Point, Boolean) -> LatLng
- var d = L.LatLng.RAD_TO_DEG,
- lng = point.x * d,
- lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
- return new L.LatLng(lat, lng);
- }
- };
- /*
- * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
- */
- L.Projection.LonLat = {
- project: function (latlng) {
- return new L.Point(latlng.lng, latlng.lat);
- },
- unproject: function (point) {
- return new L.LatLng(point.y, point.x);
- }
- };
- /*
- * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
- */
- L.CRS = {
- latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
- var projectedPoint = this.projection.project(latlng),
- scale = this.scale(zoom);
- return this.transformation._transform(projectedPoint, scale);
- },
- pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
- var scale = this.scale(zoom),
- untransformedPoint = this.transformation.untransform(point, scale);
- return this.projection.unproject(untransformedPoint);
- },
- project: function (latlng) {
- return this.projection.project(latlng);
- },
- scale: function (zoom) {
- return 256 * Math.pow(2, zoom);
- },
- getSize: function (zoom) {
- var s = this.scale(zoom);
- return L.point(s, s);
- }
- };
- /*
- * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
- */
- L.CRS.Simple = L.extend({}, L.CRS, {
- projection: L.Projection.LonLat,
- transformation: new L.Transformation(1, 0, -1, 0),
- scale: function (zoom) {
- return Math.pow(2, zoom);
- }
- });
- /*
- * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping
- * and is used by Leaflet by default.
- */
- L.CRS.EPSG3857 = L.extend({}, L.CRS, {
- code: 'EPSG:3857',
- projection: L.Projection.SphericalMercator,
- transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
- project: function (latlng) { // (LatLng) -> Point
- var projectedPoint = this.projection.project(latlng),
- earthRadius = 6378137;
- return projectedPoint.multiplyBy(earthRadius);
- }
- });
- L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
- code: 'EPSG:900913'
- });
- /*
- * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
- */
- L.CRS.EPSG4326 = L.extend({}, L.CRS, {
- code: 'EPSG:4326',
- projection: L.Projection.LonLat,
- transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
- });
- /*
- * L.Map is the central class of the API - it is used to create a map.
- */
- L.Map = L.Class.extend({
- includes: L.Mixin.Events,
- options: {
- crs: L.CRS.EPSG3857,
- /*
- center: LatLng,
- zoom: Number,
- layers: Array,
- */
- fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
- trackResize: true,
- markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
- },
- initialize: function (id, options) { // (HTMLElement or String, Object)
- options = L.setOptions(this, options);
- this._initContainer(id);
- this._initLayout();
- // hack for https://github.com/Leaflet/Leaflet/issues/1980
- this._onResize = L.bind(this._onResize, this);
- this._initEvents();
- if (options.maxBounds) {
- this.setMaxBounds(options.maxBounds);
- }
- if (options.center && options.zoom !== undefined) {
- this.setView(L.latLng(options.center), options.zoom, {reset: true});
- }
- this._handlers = [];
- this._layers = {};
- this._zoomBoundLayers = {};
- this._tileLayersNum = 0;
- this.callInitHooks();
- this._addLayers(options.layers);
- },
- // public methods that modify map state
- // replaced by animation-powered implementation in Map.PanAnimation.js
- setView: function (center, zoom) {
- zoom = zoom === undefined ? this.getZoom() : zoom;
- this._resetView(L.latLng(center), this._limitZoom(zoom));
- return this;
- },
- setZoom: function (zoom, options) {
- if (!this._loaded) {
- this._zoom = this._limitZoom(zoom);
- return this;
- }
- return this.setView(this.getCenter(), zoom, {zoom: options});
- },
- zoomIn: function (delta, options) {
- return this.setZoom(this._zoom + (delta || 1), options);
- },
- zoomOut: function (delta, options) {
- return this.setZoom(this._zoom - (delta || 1), options);
- },
- setZoomAround: function (latlng, zoom, options) {
- var scale = this.getZoomScale(zoom),
- viewHalf = this.getSize().divideBy(2),
- containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
- centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
- newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
- return this.setView(newCenter, zoom, {zoom: options});
- },
- fitBounds: function (bounds, options) {
- options = options || {};
- bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
- var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
- paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
- zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)),
- paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
- swPoint = this.project(bounds.getSouthWest(), zoom),
- nePoint = this.project(bounds.getNorthEast(), zoom),
- center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
- zoom = options && options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;
- return this.setView(center, zoom, options);
- },
- fitWorld: function (options) {
- return this.fitBounds([[-90, -180], [90, 180]], options);
- },
- panTo: function (center, options) { // (LatLng)
- return this.setView(center, this._zoom, {pan: options});
- },
- panBy: function (offset) { // (Point)
- // replaced with animated panBy in Map.PanAnimation.js
- this.fire('movestart');
- this._rawPanBy(L.point(offset));
- this.fire('move');
- return this.fire('moveend');
- },
- setMaxBounds: function (bounds) {
- bounds = L.latLngBounds(bounds);
- this.options.maxBounds = bounds;
- if (!bounds) {
- return this.off('moveend', this._panInsideMaxBounds, this);
- }
- if (this._loaded) {
- this._panInsideMaxBounds();
- }
- return this.on('moveend', this._panInsideMaxBounds, this);
- },
- panInsideBounds: function (bounds, options) {
- var center = this.getCenter(),
- newCenter = this._limitCenter(center, this._zoom, bounds);
- if (center.equals(newCenter)) { return this; }
- return this.panTo(newCenter, options);
- },
- addLayer: function (layer) {
- // TODO method is too big, refactor
- var id = L.stamp(layer);
- if (this._layers[id]) { return this; }
- this._layers[id] = layer;
- // TODO getMaxZoom, getMinZoom in ILayer (instead of options)
- if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) {
- this._zoomBoundLayers[id] = layer;
- this._updateZoomLevels();
- }
- // TODO looks ugly, refactor!!!
- if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
- this._tileLayersNum++;
- this._tileLayersToLoad++;
- layer.on('load', this._onTileLayerLoad, this);
- }
- if (this._loaded) {
- this._layerAdd(layer);
- }
- return this;
- },
- removeLayer: function (layer) {
- var id = L.stamp(layer);
- if (!this._layers[id]) { return this; }
- if (this._loaded) {
- layer.onRemove(this);
- }
- delete this._layers[id];
- if (this._loaded) {
- this.fire('layerremove', {layer: layer});
- }
- if (this._zoomBoundLayers[id]) {
- delete this._zoomBoundLayers[id];
- this._updateZoomLevels();
- }
- // TODO looks ugly, refactor
- if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
- this._tileLayersNum--;
- this._tileLayersToLoad--;
- layer.off('load', this._onTileLayerLoad, this);
- }
- return this;
- },
- hasLayer: function (layer) {
- if (!layer) { return false; }
- return (L.stamp(layer) in this._layers);
- },
- eachLayer: function (method, context) {
- for (var i in this._layers) {
- method.call(context, this._layers[i]);
- }
- return this;
- },
- invalidateSize: function (options) {
- if (!this._loaded) { return this; }
- options = L.extend({
- animate: false,
- pan: true
- }, options === true ? {animate: true} : options);
- var oldSize = this.getSize();
- this._sizeChanged = true;
- this._initialCenter = null;
- var newSize = this.getSize(),
- oldCenter = oldSize.divideBy(2).round(),
- newCenter = newSize.divideBy(2).round(),
- offset = oldCenter.subtract(newCenter);
- if (!offset.x && !offset.y) { return this; }
- if (options.animate && options.pan) {
- this.panBy(offset);
- } else {
- if (options.pan) {
- this._rawPanBy(offset);
- }
- this.fire('move');
- if (options.debounceMoveend) {
- clearTimeout(this._sizeTimer);
- this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
- } else {
- this.fire('moveend');
- }
- }
- return this.fire('resize', {
- oldSize: oldSize,
- newSize: newSize
- });
- },
- // TODO handler.addTo
- addHandler: function (name, HandlerClass) {
- if (!HandlerClass) { return this; }
- var handler = this[name] = new HandlerClass(this);
- this._handlers.push(handler);
- if (this.options[name]) {
- handler.enable();
- }
- return this;
- },
- remove: function () {
- if (this._loaded) {
- this.fire('unload');
- }
- this._initEvents('off');
- try {
- // throws error in IE6-8
- delete this._container._leaflet;
- } catch (e) {
- this._container._leaflet = undefined;
- }
- this._clearPanes();
- if (this._clearControlPos) {
- this._clearControlPos();
- }
- this._clearHandlers();
- return this;
- },
- // public methods for getting map state
- getCenter: function () { // (Boolean) -> LatLng
- this._checkIfLoaded();
- if (this._initialCenter && !this._moved()) {
- return this._initialCenter;
- }
- return this.layerPointToLatLng(this._getCenterLayerPoint());
- },
- getZoom: function () {
- return this._zoom;
- },
- getBounds: function () {
- var bounds = this.getPixelBounds(),
- sw = this.unproject(bounds.getBottomLeft()),
- ne = this.unproject(bounds.getTopRight());
- return new L.LatLngBounds(sw, ne);
- },
- getMinZoom: function () {
- return this.options.minZoom === undefined ?
- (this._layersMinZoom === undefined ? 0 : this._layersMinZoom) :
- this.options.minZoom;
- },
- getMaxZoom: function () {
- return this.options.maxZoom === undefined ?
- (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
- this.options.maxZoom;
- },
- getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
- bounds = L.latLngBounds(bounds);
- var zoom = this.getMinZoom() - (inside ? 1 : 0),
- maxZoom = this.getMaxZoom(),
- size = this.getSize(),
- nw = bounds.getNorthWest(),
- se = bounds.getSouthEast(),
- zoomNotFound = true,
- boundsSize;
- padding = L.point(padding || [0, 0]);
- do {
- zoom++;
- boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
- zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
- } while (zoomNotFound && zoom <= maxZoom);
- if (zoomNotFound && inside) {
- return null;
- }
- return inside ? zoom : zoom - 1;
- },
- getSize: function () {
- if (!this._size || this._sizeChanged) {
- this._size = new L.Point(
- this._container.clientWidth,
- this._container.clientHeight);
- this._sizeChanged = false;
- }
- return this._size.clone();
- },
- getPixelBounds: function () {
- var topLeftPoint = this._getTopLeftPoint();
- return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
- },
- getPixelOrigin: function () {
- this._checkIfLoaded();
- return this._initialTopLeftPoint;
- },
- getPanes: function () {
- return this._panes;
- },
- getContainer: function () {
- return this._container;
- },
- // TODO replace with universal implementation after refactoring projections
- getZoomScale: function (toZoom) {
- var crs = this.options.crs;
- return crs.scale(toZoom) / crs.scale(this._zoom);
- },
- getScaleZoom: function (scale) {
- return this._zoom + (Math.log(scale) / Math.LN2);
- },
- // conversion methods
- project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
- zoom = zoom === undefined ? this._zoom : zoom;
- return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
- },
- unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
- zoom = zoom === undefined ? this._zoom : zoom;
- return this.options.crs.pointToLatLng(L.point(point), zoom);
- },
- layerPointToLatLng: function (point) { // (Point)
- var projectedPoint = L.point(point).add(this.getPixelOrigin());
- return this.unproject(projectedPoint);
- },
- latLngToLayerPoint: function (latlng) { // (LatLng)
- var projectedPoint = this.project(L.latLng(latlng))._round();
- return projectedPoint._subtract(this.getPixelOrigin());
- },
- containerPointToLayerPoint: function (point) { // (Point)
- return L.point(point).subtract(this._getMapPanePos());
- },
- layerPointToContainerPoint: function (point) { // (Point)
- return L.point(point).add(this._getMapPanePos());
- },
- containerPointToLatLng: function (point) {
- var layerPoint = this.containerPointToLayerPoint(L.point(point));
- return this.layerPointToLatLng(layerPoint);
- },
- latLngToContainerPoint: function (latlng) {
- return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
- },
- mouseEventToContainerPoint: function (e) { // (MouseEvent)
- return L.DomEvent.getMousePosition(e, this._container);
- },
- mouseEventToLayerPoint: function (e) { // (MouseEvent)
- return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
- },
- mouseEventToLatLng: function (e) { // (MouseEvent)
- return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
- },
- // map initialization methods
- _initContainer: function (id) {
- var container = this._container = L.DomUtil.get(id);
- if (!container) {
- throw new Error('Map container not found.');
- } else if (container._leaflet) {
- throw new Error('Map container is already initialized.');
- }
- container._leaflet = true;
- },
- _initLayout: function () {
- var container = this._container;
- L.DomUtil.addClass(container, 'leaflet-container' +
- (L.Browser.touch ? ' leaflet-touch' : '') +
- (L.Browser.retina ? ' leaflet-retina' : '') +
- (L.Browser.ielt9 ? ' leaflet-oldie' : '') +
- (this.options.fadeAnimation ? ' leaflet-fade-anim' : ''));
- var position = L.DomUtil.getStyle(container, 'position');
- if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
- container.style.position = 'relative';
- }
- this._initPanes();
- if (this._initControlPos) {
- this._initControlPos();
- }
- },
- _initPanes: function () {
- var panes = this._panes = {};
- this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
- this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
- panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);
- panes.shadowPane = this._createPane('leaflet-shadow-pane');
- panes.overlayPane = this._createPane('leaflet-overlay-pane');
- panes.markerPane = this._createPane('leaflet-marker-pane');
- panes.popupPane = this._createPane('leaflet-popup-pane');
- var zoomHide = ' leaflet-zoom-hide';
- if (!this.options.markerZoomAnimation) {
- L.DomUtil.addClass(panes.markerPane, zoomHide);
- L.DomUtil.addClass(panes.shadowPane, zoomHide);
- L.DomUtil.addClass(panes.popupPane, zoomHide);
- }
- },
- _createPane: function (className, container) {
- return L.DomUtil.create('div', className, container || this._panes.objectsPane);
- },
- _clearPanes: function () {
- this._container.removeChild(this._mapPane);
- },
- _addLayers: function (layers) {
- layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
- for (var i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
- }
- },
- // private methods that modify map state
- _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
- var zoomChanged = (this._zoom !== zoom);
- if (!afterZoomAnim) {
- this.fire('movestart');
- if (zoomChanged) {
- this.fire('zoomstart');
- }
- }
- this._zoom = zoom;
- this._initialCenter = center;
- this._initialTopLeftPoint = this._getNewTopLeftPoint(center);
- if (!preserveMapOffset) {
- L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
- } else {
- this._initialTopLeftPoint._add(this._getMapPanePos());
- }
- this._tileLayersToLoad = this._tileLayersNum;
- var loading = !this._loaded;
- this._loaded = true;
- this.fire('viewreset', {hard: !preserveMapOffset});
- if (loading) {
- this.fire('load');
- this.eachLayer(this._layerAdd, this);
- }
- this.fire('move');
- if (zoomChanged || afterZoomAnim) {
- this.fire('zoomend');
- }
- this.fire('moveend', {hard: !preserveMapOffset});
- },
- _rawPanBy: function (offset) {
- L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
- },
- _getZoomSpan: function () {
- return this.getMaxZoom() - this.getMinZoom();
- },
- _updateZoomLevels: function () {
- var i,
- minZoom = Infinity,
- maxZoom = -Infinity,
- oldZoomSpan = this._getZoomSpan();
- for (i in this._zoomBoundLayers) {
- var layer = this._zoomBoundLayers[i];
- if (!isNaN(layer.options.minZoom)) {
- minZoom = Math.min(minZoom, layer.options.minZoom);
- }
- if (!isNaN(layer.options.maxZoom)) {
- maxZoom = Math.max(maxZoom, layer.options.maxZoom);
- }
- }
- if (i === undefined) { // we have no tilelayers
- this._layersMaxZoom = this._layersMinZoom = undefined;
- } else {
- this._layersMaxZoom = maxZoom;
- this._layersMinZoom = minZoom;
- }
- if (oldZoomSpan !== this._getZoomSpan()) {
- this.fire('zoomlevelschange');
- }
- },
- _panInsideMaxBounds: function () {
- this.panInsideBounds(this.options.maxBounds);
- },
- _checkIfLoaded: function () {
- if (!this._loaded) {
- throw new Error('Set map center and zoom first.');
- }
- },
- // map events
- _initEvents: function (onOff) {
- if (!L.DomEvent) { return; }
- onOff = onOff || 'on';
- L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this);
- var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter',
- 'mouseleave', 'mousemove', 'contextmenu'],
- i, len;
- for (i = 0, len = events.length; i < len; i++) {
- L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this);
- }
- if (this.options.trackResize) {
- L.DomEvent[onOff](window, 'resize', this._onResize, this);
- }
- },
- _onResize: function () {
- L.Util.cancelAnimFrame(this._resizeRequest);
- this._resizeRequest = L.Util.requestAnimFrame(
- function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
- },
- _onMouseClick: function (e) {
- if (!this._loaded || (!e._simulated &&
- ((this.dragging && this.dragging.moved()) ||
- (this.boxZoom && this.boxZoom.moved()))) ||
- L.DomEvent._skipped(e)) { return; }
- this.fire('preclick');
- this._fireMouseEvent(e);
- },
- _fireMouseEvent: function (e) {
- if (!this._loaded || L.DomEvent._skipped(e)) { return; }
- var type = e.type;
- type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
- if (!this.hasEventListeners(type)) { return; }
- if (type === 'contextmenu') {
- L.DomEvent.preventDefault(e);
- }
- var containerPoint = this.mouseEventToContainerPoint(e),
- layerPoint = this.containerPointToLayerPoint(containerPoint),
- latlng = this.layerPointToLatLng(layerPoint);
- this.fire(type, {
- latlng: latlng,
- layerPoint: layerPoint,
- containerPoint: containerPoint,
- originalEvent: e
- });
- },
- _onTileLayerLoad: function () {
- this._tileLayersToLoad--;
- if (this._tileLayersNum && !this._tileLayersToLoad) {
- this.fire('tilelayersload');
- }
- },
- _clearHandlers: function () {
- for (var i = 0, len = this._handlers.length; i < len; i++) {
- this._handlers[i].disable();
- }
- },
- whenReady: function (callback, context) {
- if (this._loaded) {
- callback.call(context || this, this);
- } else {
- this.on('load', callback, context);
- }
- return this;
- },
- _layerAdd: function (layer) {
- layer.onAdd(this);
- this.fire('layeradd', {layer: layer});
- },
- // private methods for getting map state
- _getMapPanePos: function () {
- return L.DomUtil.getPosition(this._mapPane);
- },
- _moved: function () {
- var pos = this._getMapPanePos();
- return pos && !pos.equals([0, 0]);
- },
- _getTopLeftPoint: function () {
- return this.getPixelOrigin().subtract(this._getMapPanePos());
- },
- _getNewTopLeftPoint: function (center, zoom) {
- var viewHalf = this.getSize()._divideBy(2);
- // TODO round on display, not calculation to increase precision?
- return this.project(center, zoom)._subtract(viewHalf)._round();
- },
- _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
- var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
- return this.project(latlng, newZoom)._subtract(topLeft);
- },
- // layer point of the current center
- _getCenterLayerPoint: function () {
- return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
- },
- // offset of the specified place to the current center in pixels
- _getCenterOffset: function (latlng) {
- return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
- },
- // adjust center for view to get inside bounds
- _limitCenter: function (center, zoom, bounds) {
- if (!bounds) { return center; }
- var centerPoint = this.project(center, zoom),
- viewHalf = this.getSize().divideBy(2),
- viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
- offset = this._getBoundsOffset(viewBounds, bounds, zoom);
- return this.unproject(centerPoint.add(offset), zoom);
- },
- // adjust offset for view to get inside bounds
- _limitOffset: function (offset, bounds) {
- if (!bounds) { return offset; }
- var viewBounds = this.getPixelBounds(),
- newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
- return offset.add(this._getBoundsOffset(newBounds, bounds));
- },
- // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
- _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
- var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
- seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
- dx = this._rebound(nwOffset.x, -seOffset.x),
- dy = this._rebound(nwOffset.y, -seOffset.y);
- return new L.Point(dx, dy);
- },
- _rebound: function (left, right) {
- return left + right > 0 ?
- Math.round(left - right) / 2 :
- Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
- },
- _limitZoom: function (zoom) {
- var min = this.getMinZoom(),
- max = this.getMaxZoom();
- return Math.max(min, Math.min(max, zoom));
- }
- });
- L.map = function (id, options) {
- return new L.Map(id, options);
- };
- /*
- * Mercator projection that takes into account that the Earth is not a perfect sphere.
- * Less popular than spherical mercator; used by projections like EPSG:3395.
- */
- L.Projection.Mercator = {
- MAX_LATITUDE: 85.0840591556,
- R_MINOR: 6356752.314245179,
- R_MAJOR: 6378137,
- project: function (latlng) { // (LatLng) -> Point
- var d = L.LatLng.DEG_TO_RAD,
- max = this.MAX_LATITUDE,
- lat = Math.max(Math.min(max, latlng.lat), -max),
- r = this.R_MAJOR,
- r2 = this.R_MINOR,
- x = latlng.lng * d * r,
- y = lat * d,
- tmp = r2 / r,
- eccent = Math.sqrt(1.0 - tmp * tmp),
- con = eccent * Math.sin(y);
- con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
- var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
- y = -r * Math.log(ts);
- return new L.Point(x, y);
- },
- unproject: function (point) { // (Point, Boolean) -> LatLng
- var d = L.LatLng.RAD_TO_DEG,
- r = this.R_MAJOR,
- r2 = this.R_MINOR,
- lng = point.x * d / r,
- tmp = r2 / r,
- eccent = Math.sqrt(1 - (tmp * tmp)),
- ts = Math.exp(- point.y / r),
- phi = (Math.PI / 2) - 2 * Math.atan(ts),
- numIter = 15,
- tol = 1e-7,
- i = numIter,
- dphi = 0.1,
- con;
- while ((Math.abs(dphi) > tol) && (--i > 0)) {
- con = eccent * Math.sin(phi);
- dphi = (Math.PI / 2) - 2 * Math.atan(ts *
- Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
- phi += dphi;
- }
- return new L.LatLng(phi * d, lng);
- }
- };
- L.CRS.EPSG3395 = L.extend({}, L.CRS, {
- code: 'EPSG:3395',
- projection: L.Projection.Mercator,
- transformation: (function () {
- var m = L.Projection.Mercator,
- r = m.R_MAJOR,
- scale = 0.5 / (Math.PI * r);
- return new L.Transformation(scale, 0.5, -scale, 0.5);
- }())
- });
- /*
- * L.TileLayer is used for standard xyz-numbered tile layers.
- */
- L.TileLayer = L.Class.extend({
- includes: L.Mixin.Events,
- options: {
- minZoom: 0,
- maxZoom: 18,
- tileSize: 256,
- subdomains: 'abc',
- errorTileUrl: '',
- attribution: '',
- zoomOffset: 0,
- opacity: 1,
- /*
- maxNativeZoom: null,
- zIndex: null,
- tms: false,
- continuousWorld: false,
- noWrap: false,
- zoomReverse: false,
- detectRetina: false,
- reuseTiles: false,
- bounds: false,
- */
- unloadInvisibleTiles: L.Browser.mobile,
- updateWhenIdle: L.Browser.mobile
- },
- initialize: function (url, options) {
- options = L.setOptions(this, options);
- // detecting retina displays, adjusting tileSize and zoom levels
- if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
- options.tileSize = Math.floor(options.tileSize / 2);
- options.zoomOffset++;
- if (options.minZoom > 0) {
- options.minZoom--;
- }
- this.options.maxZoom--;
- }
- if (options.bounds) {
- options.bounds = L.latLngBounds(options.bounds);
- }
- this._url = url;
- var subdomains = this.options.subdomains;
- if (typeof subdomains === 'string') {
- this.options.subdomains = subdomains.split('');
- }
- },
- onAdd: function (map) {
- this._map = map;
- this._animated = map._zoomAnimated;
- // create a container div for tiles
- this._initContainer();
- // set up events
- map.on({
- 'viewreset': this._reset,
- 'moveend': this._update
- }, this);
- if (this._animated) {
- map.on({
- 'zoomanim': this._animateZoom,
- 'zoomend': this._endZoomAnim
- }, this);
- }
- if (!this.options.updateWhenIdle) {
- this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
- map.on('move', this._limitedUpdate, this);
- }
- this._reset();
- this._update();
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- onRemove: function (map) {
- this._container.parentNode.removeChild(this._container);
- map.off({
- 'viewreset': this._reset,
- 'moveend': this._update
- }, this);
- if (this._animated) {
- map.off({
- 'zoomanim': this._animateZoom,
- 'zoomend': this._endZoomAnim
- }, this);
- }
- if (!this.options.updateWhenIdle) {
- map.off('move', this._limitedUpdate, this);
- }
- this._container = null;
- this._map = null;
- },
- bringToFront: function () {
- var pane = this._map._panes.tilePane;
- if (this._container) {
- pane.appendChild(this._container);
- this._setAutoZIndex(pane, Math.max);
- }
- return this;
- },
- bringToBack: function () {
- var pane = this._map._panes.tilePane;
- if (this._container) {
- pane.insertBefore(this._container, pane.firstChild);
- this._setAutoZIndex(pane, Math.min);
- }
- return this;
- },
- getAttribution: function () {
- return this.options.attribution;
- },
- getContainer: function () {
- return this._container;
- },
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- if (this._map) {
- this._updateOpacity();
- }
- return this;
- },
- setZIndex: function (zIndex) {
- this.options.zIndex = zIndex;
- this._updateZIndex();
- return this;
- },
- setUrl: function (url, noRedraw) {
- this._url = url;
- if (!noRedraw) {
- this.redraw();
- }
- return this;
- },
- redraw: function () {
- if (this._map) {
- this._reset({hard: true});
- this._update();
- }
- return this;
- },
- _updateZIndex: function () {
- if (this._container && this.options.zIndex !== undefined) {
- this._container.style.zIndex = this.options.zIndex;
- }
- },
- _setAutoZIndex: function (pane, compare) {
- var layers = pane.children,
- edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min
- zIndex, i, len;
- for (i = 0, len = layers.length; i < len; i++) {
- if (layers[i] !== this._container) {
- zIndex = parseInt(layers[i].style.zIndex, 10);
- if (!isNaN(zIndex)) {
- edgeZIndex = compare(edgeZIndex, zIndex);
- }
- }
- }
- this.options.zIndex = this._container.style.zIndex =
- (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1);
- },
- _updateOpacity: function () {
- var i,
- tiles = this._tiles;
- if (L.Browser.ielt9) {
- for (i in tiles) {
- L.DomUtil.setOpacity(tiles[i], this.options.opacity);
- }
- } else {
- L.DomUtil.setOpacity(this._container, this.options.opacity);
- }
- },
- _initContainer: function () {
- var tilePane = this._map._panes.tilePane;
- if (!this._container) {
- this._container = L.DomUtil.create('div', 'leaflet-layer');
- this._updateZIndex();
- if (this._animated) {
- var className = 'leaflet-tile-container';
- this._bgBuffer = L.DomUtil.create('div', className, this._container);
- this._tileContainer = L.DomUtil.create('div', className, this._container);
- } else {
- this._tileContainer = this._container;
- }
- tilePane.appendChild(this._container);
- if (this.options.opacity < 1) {
- this._updateOpacity();
- }
- }
- },
- _reset: function (e) {
- for (var key in this._tiles) {
- this.fire('tileunload', {tile: this._tiles[key]});
- }
- this._tiles = {};
- this._tilesToLoad = 0;
- if (this.options.reuseTiles) {
- this._unusedTiles = [];
- }
- this._tileContainer.innerHTML = '';
- if (this._animated && e && e.hard) {
- this._clearBgBuffer();
- }
- this._initContainer();
- },
- _getTileSize: function () {
- var map = this._map,
- zoom = map.getZoom() + this.options.zoomOffset,
- zoomN = this.options.maxNativeZoom,
- tileSize = this.options.tileSize;
- if (zoomN && zoom > zoomN) {
- tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize);
- }
- return tileSize;
- },
- _update: function () {
- if (!this._map) { return; }
- var map = this._map,
- bounds = map.getPixelBounds(),
- zoom = map.getZoom(),
- tileSize = this._getTileSize();
- if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
- return;
- }
- var tileBounds = L.bounds(
- bounds.min.divideBy(tileSize)._floor(),
- bounds.max.divideBy(tileSize)._floor());
- this._addTilesFromCenterOut(tileBounds);
- if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
- this._removeOtherTiles(tileBounds);
- }
- },
- _addTilesFromCenterOut: function (bounds) {
- var queue = [],
- center = bounds.getCenter();
- var j, i, point;
- for (j = bounds.min.y; j <= bounds.max.y; j++) {
- for (i = bounds.min.x; i <= bounds.max.x; i++) {
- point = new L.Point(i, j);
- if (this._tileShouldBeLoaded(point)) {
- queue.push(point);
- }
- }
- }
- var tilesToLoad = queue.length;
- if (tilesToLoad === 0) { return; }
- // load tiles in order of their distance to center
- queue.sort(function (a, b) {
- return a.distanceTo(center) - b.distanceTo(center);
- });
- var fragment = document.createDocumentFragment();
- // if its the first batch of tiles to load
- if (!this._tilesToLoad) {
- this.fire('loading');
- }
- this._tilesToLoad += tilesToLoad;
- for (i = 0; i < tilesToLoad; i++) {
- this._addTile(queue[i], fragment);
- }
- this._tileContainer.appendChild(fragment);
- },
- _tileShouldBeLoaded: function (tilePoint) {
- if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
- return false; // already loaded
- }
- var options = this.options;
- if (!options.continuousWorld) {
- var limit = this._getWrapTileNum();
- // don't load if exceeds world bounds
- if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) ||
- tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; }
- }
- if (options.bounds) {
- var tileSize = options.tileSize,
- nwPoint = tilePoint.multiplyBy(tileSize),
- sePoint = nwPoint.add([tileSize, tileSize]),
- nw = this._map.unproject(nwPoint),
- se = this._map.unproject(sePoint);
- // TODO temporary hack, will be removed after refactoring projections
- // https://github.com/Leaflet/Leaflet/issues/1618
- if (!options.continuousWorld && !options.noWrap) {
- nw = nw.wrap();
- se = se.wrap();
- }
- if (!options.bounds.intersects([nw, se])) { return false; }
- }
- return true;
- },
- _removeOtherTiles: function (bounds) {
- var kArr, x, y, key;
- for (key in this._tiles) {
- kArr = key.split(':');
- x = parseInt(kArr[0], 10);
- y = parseInt(kArr[1], 10);
- // remove tile if it's out of bounds
- if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
- this._removeTile(key);
- }
- }
- },
- _removeTile: function (key) {
- var tile = this._tiles[key];
- this.fire('tileunload', {tile: tile, url: tile.src});
- if (this.options.reuseTiles) {
- L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
- this._unusedTiles.push(tile);
- } else if (tile.parentNode === this._tileContainer) {
- this._tileContainer.removeChild(tile);
- }
- // for https://github.com/CloudMade/Leaflet/issues/137
- if (!L.Browser.android) {
- tile.onload = null;
- tile.src = L.Util.emptyImageUrl;
- }
- delete this._tiles[key];
- },
- _addTile: function (tilePoint, container) {
- var tilePos = this._getTilePos(tilePoint);
- // get unused tile - or create a new tile
- var tile = this._getTile();
- /*
- Chrome 20 layouts much faster with top/left (verify with timeline, frames)
- Android 4 browser has display issues with top/left and requires transform instead
- (other browsers don't currently care) - see debug/hacks/jitter.html for an example
- */
- L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);
- this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
- this._loadTile(tile, tilePoint);
- if (tile.parentNode !== this._tileContainer) {
- container.appendChild(tile);
- }
- },
- _getZoomForUrl: function () {
- var options = this.options,
- zoom = this._map.getZoom();
- if (options.zoomReverse) {
- zoom = options.maxZoom - zoom;
- }
- zoom += options.zoomOffset;
- return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
- },
- _getTilePos: function (tilePoint) {
- var origin = this._map.getPixelOrigin(),
- tileSize = this._getTileSize();
- return tilePoint.multiplyBy(tileSize).subtract(origin);
- },
- // image-specific code (override to implement e.g. Canvas or SVG tile layer)
- getTileUrl: function (tilePoint) {
- return L.Util.template(this._url, L.extend({
- s: this._getSubdomain(tilePoint),
- z: tilePoint.z,
- x: tilePoint.x,
- y: tilePoint.y
- }, this.options));
- },
- _getWrapTileNum: function () {
- var crs = this._map.options.crs,
- size = crs.getSize(this._map.getZoom());
- return size.divideBy(this._getTileSize())._floor();
- },
- _adjustTilePoint: function (tilePoint) {
- var limit = this._getWrapTileNum();
- // wrap tile coordinates
- if (!this.options.continuousWorld && !this.options.noWrap) {
- tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x;
- }
- if (this.options.tms) {
- tilePoint.y = limit.y - tilePoint.y - 1;
- }
- tilePoint.z = this._getZoomForUrl();
- },
- _getSubdomain: function (tilePoint) {
- var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
- return this.options.subdomains[index];
- },
- _getTile: function () {
- if (this.options.reuseTiles && this._unusedTiles.length > 0) {
- var tile = this._unusedTiles.pop();
- this._resetTile(tile);
- return tile;
- }
- return this._createTile();
- },
- // Override if data stored on a tile needs to be cleaned up before reuse
- _resetTile: function (/*tile*/) {},
- _createTile: function () {
- var tile = L.DomUtil.create('img', 'leaflet-tile');
- tile.style.width = tile.style.height = this._getTileSize() + 'px';
- tile.galleryimg = 'no';
- tile.onselectstart = tile.onmousemove = L.Util.falseFn;
- if (L.Browser.ielt9 && this.options.opacity !== undefined) {
- L.DomUtil.setOpacity(tile, this.options.opacity);
- }
- // without this hack, tiles disappear after zoom on Chrome for Android
- // https://github.com/Leaflet/Leaflet/issues/2078
- if (L.Browser.mobileWebkit3d) {
- tile.style.WebkitBackfaceVisibility = 'hidden';
- }
- return tile;
- },
- _loadTile: function (tile, tilePoint) {
- tile._layer = this;
- tile.onload = this._tileOnLoad;
- tile.onerror = this._tileOnError;
- this._adjustTilePoint(tilePoint);
- tile.src = this.getTileUrl(tilePoint);
- this.fire('tileloadstart', {
- tile: tile,
- url: tile.src
- });
- },
- _tileLoaded: function () {
- this._tilesToLoad--;
- if (this._animated) {
- L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated');
- }
- if (!this._tilesToLoad) {
- this.fire('load');
- if (this._animated) {
- // clear scaled tiles after all new tiles are loaded (for performance)
- clearTimeout(this._clearBgBufferTimer);
- this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500);
- }
- }
- },
- _tileOnLoad: function () {
- var layer = this._layer;
- //Only if we are loading an actual image
- if (this.src !== L.Util.emptyImageUrl) {
- L.DomUtil.addClass(this, 'leaflet-tile-loaded');
- layer.fire('tileload', {
- tile: this,
- url: this.src
- });
- }
- layer._tileLoaded();
- },
- _tileOnError: function () {
- var layer = this._layer;
- layer.fire('tileerror', {
- tile: this,
- url: this.src
- });
- var newUrl = layer.options.errorTileUrl;
- if (newUrl) {
- this.src = newUrl;
- }
- layer._tileLoaded();
- }
- });
- L.tileLayer = function (url, options) {
- return new L.TileLayer(url, options);
- };
- /*
- * L.TileLayer.WMS is used for putting WMS tile layers on the map.
- */
- L.TileLayer.WMS = L.TileLayer.extend({
- defaultWmsParams: {
- service: 'WMS',
- request: 'GetMap',
- version: '1.1.1',
- layers: '',
- styles: '',
- format: 'image/jpeg',
- transparent: false
- },
- initialize: function (url, options) { // (String, Object)
- this._url = url;
- var wmsParams = L.extend({}, this.defaultWmsParams),
- tileSize = options.tileSize || this.options.tileSize;
- if (options.detectRetina && L.Browser.retina) {
- wmsParams.width = wmsParams.height = tileSize * 2;
- } else {
- wmsParams.width = wmsParams.height = tileSize;
- }
- for (var i in options) {
- // all keys that are not TileLayer options go to WMS params
- if (!this.options.hasOwnProperty(i) && i !== 'crs') {
- wmsParams[i] = options[i];
- }
- }
- this.wmsParams = wmsParams;
- L.setOptions(this, options);
- },
- onAdd: function (map) {
- this._crs = this.options.crs || map.options.crs;
- this._wmsVersion = parseFloat(this.wmsParams.version);
- var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
- this.wmsParams[projectionKey] = this._crs.code;
- L.TileLayer.prototype.onAdd.call(this, map);
- },
- getTileUrl: function (tilePoint) { // (Point, Number) -> String
- var map = this._map,
- tileSize = this.options.tileSize,
- nwPoint = tilePoint.multiplyBy(tileSize),
- sePoint = nwPoint.add([tileSize, tileSize]),
- nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)),
- se = this._crs.project(map.unproject(sePoint, tilePoint.z)),
- bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
- [se.y, nw.x, nw.y, se.x].join(',') :
- [nw.x, se.y, se.x, nw.y].join(','),
- url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
- return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox;
- },
- setParams: function (params, noRedraw) {
- L.extend(this.wmsParams, params);
- if (!noRedraw) {
- this.redraw();
- }
- return this;
- }
- });
- L.tileLayer.wms = function (url, options) {
- return new L.TileLayer.WMS(url, options);
- };
- /*
- * L.TileLayer.Canvas is a class that you can use as a base for creating
- * dynamically drawn Canvas-based tile layers.
- */
- L.TileLayer.Canvas = L.TileLayer.extend({
- options: {
- async: false
- },
- initialize: function (options) {
- L.setOptions(this, options);
- },
- redraw: function () {
- if (this._map) {
- this._reset({hard: true});
- this._update();
- }
- for (var i in this._tiles) {
- this._redrawTile(this._tiles[i]);
- }
- return this;
- },
- _redrawTile: function (tile) {
- this.drawTile(tile, tile._tilePoint, this._map._zoom);
- },
- _createTile: function () {
- var tile = L.DomUtil.create('canvas', 'leaflet-tile');
- tile.width = tile.height = this.options.tileSize;
- tile.onselectstart = tile.onmousemove = L.Util.falseFn;
- return tile;
- },
- _loadTile: function (tile, tilePoint) {
- tile._layer = this;
- tile._tilePoint = tilePoint;
- this._redrawTile(tile);
- if (!this.options.async) {
- this.tileDrawn(tile);
- }
- },
- drawTile: function (/*tile, tilePoint*/) {
- // override with rendering code
- },
- tileDrawn: function (tile) {
- this._tileOnLoad.call(tile);
- }
- });
- L.tileLayer.canvas = function (options) {
- return new L.TileLayer.Canvas(options);
- };
- /*
- * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
- */
- L.ImageOverlay = L.Class.extend({
- includes: L.Mixin.Events,
- options: {
- opacity: 1
- },
- initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
- this._url = url;
- this._bounds = L.latLngBounds(bounds);
- L.setOptions(this, options);
- },
- onAdd: function (map) {
- this._map = map;
- if (!this._image) {
- this._initImage();
- }
- map._panes.overlayPane.appendChild(this._image);
- map.on('viewreset', this._reset, this);
- if (map.options.zoomAnimation && L.Browser.any3d) {
- map.on('zoomanim', this._animateZoom, this);
- }
- this._reset();
- },
- onRemove: function (map) {
- map.getPanes().overlayPane.removeChild(this._image);
- map.off('viewreset', this._reset, this);
- if (map.options.zoomAnimation) {
- map.off('zoomanim', this._animateZoom, this);
- }
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- this._updateOpacity();
- return this;
- },
- // TODO remove bringToFront/bringToBack duplication from TileLayer/Path
- bringToFront: function () {
- if (this._image) {
- this._map._panes.overlayPane.appendChild(this._image);
- }
- return this;
- },
- bringToBack: function () {
- var pane = this._map._panes.overlayPane;
- if (this._image) {
- pane.insertBefore(this._image, pane.firstChild);
- }
- return this;
- },
- setUrl: function (url) {
- this._url = url;
- this._image.src = this._url;
- },
- getAttribution: function () {
- return this.options.attribution;
- },
- _initImage: function () {
- this._image = L.DomUtil.create('img', 'leaflet-image-layer');
- if (this._map.options.zoomAnimation && L.Browser.any3d) {
- L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
- } else {
- L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
- }
- this._updateOpacity();
- //TODO createImage util method to remove duplication
- L.extend(this._image, {
- galleryimg: 'no',
- onselectstart: L.Util.falseFn,
- onmousemove: L.Util.falseFn,
- onload: L.bind(this._onImageLoad, this),
- src: this._url
- });
- },
- _animateZoom: function (e) {
- var map = this._map,
- image = this._image,
- scale = map.getZoomScale(e.zoom),
- nw = this._bounds.getNorthWest(),
- se = this._bounds.getSouthEast(),
- topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
- size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft),
- origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale)));
- image.style[L.DomUtil.TRANSFORM] =
- L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
- },
- _reset: function () {
- var image = this._image,
- topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
- size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft);
- L.DomUtil.setPosition(image, topLeft);
- image.style.width = size.x + 'px';
- image.style.height = size.y + 'px';
- },
- _onImageLoad: function () {
- this.fire('load');
- },
- _updateOpacity: function () {
- L.DomUtil.setOpacity(this._image, this.options.opacity);
- }
- });
- L.imageOverlay = function (url, bounds, options) {
- return new L.ImageOverlay(url, bounds, options);
- };
- /*
- * L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
- */
- L.Icon = L.Class.extend({
- options: {
- /*
- iconUrl: (String) (required)
- iconRetinaUrl: (String) (optional, used for retina devices if detected)
- iconSize: (Point) (can be set through CSS)
- iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
- popupAnchor: (Point) (if not specified, popup opens in the anchor point)
- shadowUrl: (String) (no shadow by default)
- shadowRetinaUrl: (String) (optional, used for retina devices if detected)
- shadowSize: (Point)
- shadowAnchor: (Point)
- */
- className: ''
- },
- initialize: function (options) {
- L.setOptions(this, options);
- },
- createIcon: function (oldIcon) {
- return this._createIcon('icon', oldIcon);
- },
- createShadow: function (oldIcon) {
- return this._createIcon('shadow', oldIcon);
- },
- _createIcon: function (name, oldIcon) {
- var src = this._getIconUrl(name);
- if (!src) {
- if (name === 'icon') {
- throw new Error('iconUrl not set in Icon options (see the docs).');
- }
- return null;
- }
- var img;
- if (!oldIcon || oldIcon.tagName !== 'IMG') {
- img = this._createImg(src);
- } else {
- img = this._createImg(src, oldIcon);
- }
- this._setIconStyles(img, name);
- return img;
- },
- _setIconStyles: function (img, name) {
- var options = this.options,
- size = L.point(options[name + 'Size']),
- anchor;
- if (name === 'shadow') {
- anchor = L.point(options.shadowAnchor || options.iconAnchor);
- } else {
- anchor = L.point(options.iconAnchor);
- }
- if (!anchor && size) {
- anchor = size.divideBy(2, true);
- }
- img.className = 'leaflet-marker-' + name + ' ' + options.className;
- if (anchor) {
- img.style.marginLeft = (-anchor.x) + 'px';
- img.style.marginTop = (-anchor.y) + 'px';
- }
- if (size) {
- img.style.width = size.x + 'px';
- img.style.height = size.y + 'px';
- }
- },
- _createImg: function (src, el) {
- el = el || document.createElement('img');
- el.src = src;
- return el;
- },
- _getIconUrl: function (name) {
- if (L.Browser.retina && this.options[name + 'RetinaUrl']) {
- return this.options[name + 'RetinaUrl'];
- }
- return this.options[name + 'Url'];
- }
- });
- L.icon = function (options) {
- return new L.Icon(options);
- };
- /*
- * L.Icon.Default is the blue marker icon used by default in Leaflet.
- */
- L.Icon.Default = L.Icon.extend({
- options: {
- iconSize: [25, 41],
- iconAnchor: [12, 41],
- popupAnchor: [1, -34],
- shadowSize: [41, 41]
- },
- _getIconUrl: function (name) {
- var key = name + 'Url';
- if (this.options[key]) {
- return this.options[key];
- }
- if (L.Browser.retina && name === 'icon') {
- name += '-2x';
- }
- var path = L.Icon.Default.imagePath;
- if (!path) {
- throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
- }
- return path + '/marker-' + name + '.png';
- }
- });
- L.Icon.Default.imagePath = (function () {
- var scripts = document.getElementsByTagName('script'),
- leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
- var i, len, src, matches, path;
- for (i = 0, len = scripts.length; i < len; i++) {
- src = scripts[i].src;
- matches = src.match(leafletRe);
- if (matches) {
- path = src.split(leafletRe)[0];
- return (path ? path + '/' : '') + 'images';
- }
- }
- }());
- /*
- * L.Marker is used to display clickable/draggable icons on the map.
- */
- L.Marker = L.Class.extend({
- includes: L.Mixin.Events,
- options: {
- icon: new L.Icon.Default(),
- title: '',
- alt: '',
- clickable: true,
- draggable: false,
- keyboard: true,
- zIndexOffset: 0,
- opacity: 1,
- riseOnHover: false,
- riseOffset: 250
- },
- initialize: function (latlng, options) {
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
- },
- onAdd: function (map) {
- this._map = map;
- map.on('viewreset', this.update, this);
- this._initIcon();
- this.update();
- this.fire('add');
- if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
- map.on('zoomanim', this._animateZoom, this);
- }
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- onRemove: function (map) {
- if (this.dragging) {
- this.dragging.disable();
- }
- this._removeIcon();
- this._removeShadow();
- this.fire('remove');
- map.off({
- 'viewreset': this.update,
- 'zoomanim': this._animateZoom
- }, this);
- this._map = null;
- },
- getLatLng: function () {
- return this._latlng;
- },
- setLatLng: function (latlng) {
- this._latlng = L.latLng(latlng);
- this.update();
- return this.fire('move', { latlng: this._latlng });
- },
- setZIndexOffset: function (offset) {
- this.options.zIndexOffset = offset;
- this.update();
- return this;
- },
- setIcon: function (icon) {
- this.options.icon = icon;
- if (this._map) {
- this._initIcon();
- this.update();
- }
- if (this._popup) {
- this.bindPopup(this._popup);
- }
- return this;
- },
- update: function () {
- if (this._icon) {
- var pos = this._map.latLngToLayerPoint(this._latlng).round();
- this._setPos(pos);
- }
- return this;
- },
- _initIcon: function () {
- var options = this.options,
- map = this._map,
- animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
- classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide';
- var icon = options.icon.createIcon(this._icon),
- addIcon = false;
- // if we're not reusing the icon, remove the old one and init new one
- if (icon !== this._icon) {
- if (this._icon) {
- this._removeIcon();
- }
- addIcon = true;
- if (options.title) {
- icon.title = options.title;
- }
-
- if (options.alt) {
- icon.alt = options.alt;
- }
- }
- L.DomUtil.addClass(icon, classToAdd);
- if (options.keyboard) {
- icon.tabIndex = '0';
- }
- this._icon = icon;
- this._initInteraction();
- if (options.riseOnHover) {
- L.DomEvent
- .on(icon, 'mouseover', this._bringToFront, this)
- .on(icon, 'mouseout', this._resetZIndex, this);
- }
- var newShadow = options.icon.createShadow(this._shadow),
- addShadow = false;
- if (newShadow !== this._shadow) {
- this._removeShadow();
- addShadow = true;
- }
- if (newShadow) {
- L.DomUtil.addClass(newShadow, classToAdd);
- }
- this._shadow = newShadow;
- if (options.opacity < 1) {
- this._updateOpacity();
- }
- var panes = this._map._panes;
- if (addIcon) {
- panes.markerPane.appendChild(this._icon);
- }
- if (newShadow && addShadow) {
- panes.shadowPane.appendChild(this._shadow);
- }
- },
- _removeIcon: function () {
- if (this.options.riseOnHover) {
- L.DomEvent
- .off(this._icon, 'mouseover', this._bringToFront)
- .off(this._icon, 'mouseout', this._resetZIndex);
- }
- this._map._panes.markerPane.removeChild(this._icon);
- this._icon = null;
- },
- _removeShadow: function () {
- if (this._shadow) {
- this._map._panes.shadowPane.removeChild(this._shadow);
- }
- this._shadow = null;
- },
- _setPos: function (pos) {
- L.DomUtil.setPosition(this._icon, pos);
- if (this._shadow) {
- L.DomUtil.setPosition(this._shadow, pos);
- }
- this._zIndex = pos.y + this.options.zIndexOffset;
- this._resetZIndex();
- },
- _updateZIndex: function (offset) {
- this._icon.style.zIndex = this._zIndex + offset;
- },
- _animateZoom: function (opt) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
- this._setPos(pos);
- },
- _initInteraction: function () {
- if (!this.options.clickable) { return; }
- // TODO refactor into something shared with Map/Path/etc. to DRY it up
- var icon = this._icon,
- events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu'];
- L.DomUtil.addClass(icon, 'leaflet-clickable');
- L.DomEvent.on(icon, 'click', this._onMouseClick, this);
- L.DomEvent.on(icon, 'keypress', this._onKeyPress, this);
- for (var i = 0; i < events.length; i++) {
- L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
- }
- if (L.Handler.MarkerDrag) {
- this.dragging = new L.Handler.MarkerDrag(this);
- if (this.options.draggable) {
- this.dragging.enable();
- }
- }
- },
- _onMouseClick: function (e) {
- var wasDragged = this.dragging && this.dragging.moved();
- if (this.hasEventListeners(e.type) || wasDragged) {
- L.DomEvent.stopPropagation(e);
- }
- if (wasDragged) { return; }
- if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; }
- this.fire(e.type, {
- originalEvent: e,
- latlng: this._latlng
- });
- },
- _onKeyPress: function (e) {
- if (e.keyCode === 13) {
- this.fire('click', {
- originalEvent: e,
- latlng: this._latlng
- });
- }
- },
- _fireMouseEvent: function (e) {
- this.fire(e.type, {
- originalEvent: e,
- latlng: this._latlng
- });
- // TODO proper custom event propagation
- // this line will always be called if marker is in a FeatureGroup
- if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) {
- L.DomEvent.preventDefault(e);
- }
- if (e.type !== 'mousedown') {
- L.DomEvent.stopPropagation(e);
- } else {
- L.DomEvent.preventDefault(e);
- }
- },
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- if (this._map) {
- this._updateOpacity();
- }
- return this;
- },
- _updateOpacity: function () {
- L.DomUtil.setOpacity(this._icon, this.options.opacity);
- if (this._shadow) {
- L.DomUtil.setOpacity(this._shadow, this.options.opacity);
- }
- },
- _bringToFront: function () {
- this._updateZIndex(this.options.riseOffset);
- },
- _resetZIndex: function () {
- this._updateZIndex(0);
- }
- });
- L.marker = function (latlng, options) {
- return new L.Marker(latlng, options);
- };
- /*
- * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
- * to use with L.Marker.
- */
- L.DivIcon = L.Icon.extend({
- options: {
- iconSize: [12, 12], // also can be set through CSS
- /*
- iconAnchor: (Point)
- popupAnchor: (Point)
- html: (String)
- bgPos: (Point)
- */
- className: 'leaflet-div-icon',
- html: false
- },
- createIcon: function (oldIcon) {
- var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
- options = this.options;
- if (options.html !== false) {
- div.innerHTML = options.html;
- } else {
- div.innerHTML = '';
- }
- if (options.bgPos) {
- div.style.backgroundPosition =
- (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
- }
- this._setIconStyles(div, 'icon');
- return div;
- },
- createShadow: function () {
- return null;
- }
- });
- L.divIcon = function (options) {
- return new L.DivIcon(options);
- };
- /*
- * L.Popup is used for displaying popups on the map.
- */
- L.Map.mergeOptions({
- closePopupOnClick: true
- });
- L.Popup = L.Class.extend({
- includes: L.Mixin.Events,
- options: {
- minWidth: 50,
- maxWidth: 300,
- // maxHeight: null,
- autoPan: true,
- closeButton: true,
- offset: [0, 7],
- autoPanPadding: [5, 5],
- // autoPanPaddingTopLeft: null,
- // autoPanPaddingBottomRight: null,
- keepInView: false,
- className: '',
- zoomAnimation: true
- },
- initialize: function (options, source) {
- L.setOptions(this, options);
- this._source = source;
- this._animated = L.Browser.any3d && this.options.zoomAnimation;
- this._isOpen = false;
- },
- onAdd: function (map) {
- this._map = map;
- if (!this._container) {
- this._initLayout();
- }
- var animFade = map.options.fadeAnimation;
- if (animFade) {
- L.DomUtil.setOpacity(this._container, 0);
- }
- map._panes.popupPane.appendChild(this._container);
- map.on(this._getEvents(), this);
- this.update();
- if (animFade) {
- L.DomUtil.setOpacity(this._container, 1);
- }
- this.fire('open');
- map.fire('popupopen', {popup: this});
- if (this._source) {
- this._source.fire('popupopen', {popup: this});
- }
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- openOn: function (map) {
- map.openPopup(this);
- return this;
- },
- onRemove: function (map) {
- map._panes.popupPane.removeChild(this._container);
- L.Util.falseFn(this._container.offsetWidth); // force reflow
- map.off(this._getEvents(), this);
- if (map.options.fadeAnimation) {
- L.DomUtil.setOpacity(this._container, 0);
- }
- this._map = null;
- this.fire('close');
- map.fire('popupclose', {popup: this});
- if (this._source) {
- this._source.fire('popupclose', {popup: this});
- }
- },
- getLatLng: function () {
- return this._latlng;
- },
- setLatLng: function (latlng) {
- this._latlng = L.latLng(latlng);
- if (this._map) {
- this._updatePosition();
- this._adjustPan();
- }
- return this;
- },
- getContent: function () {
- return this._content;
- },
- setContent: function (content) {
- this._content = content;
- this.update();
- return this;
- },
- update: function () {
- if (!this._map) { return; }
- this._container.style.visibility = 'hidden';
- this._updateContent();
- this._updateLayout();
- this._updatePosition();
- this._container.style.visibility = '';
- this._adjustPan();
- },
- _getEvents: function () {
- var events = {
- viewreset: this._updatePosition
- };
- if (this._animated) {
- events.zoomanim = this._zoomAnimation;
- }
- if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
- events.preclick = this._close;
- }
- if (this.options.keepInView) {
- events.moveend = this._adjustPan;
- }
- return events;
- },
- _close: function () {
- if (this._map) {
- this._map.closePopup(this);
- }
- },
- _initLayout: function () {
- var prefix = 'leaflet-popup',
- containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' +
- (this._animated ? 'animated' : 'hide'),
- container = this._container = L.DomUtil.create('div', containerClass),
- closeButton;
- if (this.options.closeButton) {
- closeButton = this._closeButton =
- L.DomUtil.create('a', prefix + '-close-button', container);
- closeButton.href = '#close';
- closeButton.innerHTML = '×';
- L.DomEvent.disableClickPropagation(closeButton);
- L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
- }
- var wrapper = this._wrapper =
- L.DomUtil.create('div', prefix + '-content-wrapper', container);
- L.DomEvent.disableClickPropagation(wrapper);
- this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
- L.DomEvent.disableScrollPropagation(this._contentNode);
- L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
- this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
- this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
- },
- _updateContent: function () {
- if (!this._content) { return; }
- if (typeof this._content === 'string') {
- this._contentNode.innerHTML = this._content;
- } else {
- while (this._contentNode.hasChildNodes()) {
- this._contentNode.removeChild(this._contentNode.firstChild);
- }
- this._contentNode.appendChild(this._content);
- }
- this.fire('contentupdate');
- },
- _updateLayout: function () {
- var container = this._contentNode,
- style = container.style;
- style.width = '';
- style.whiteSpace = 'nowrap';
- var width = container.offsetWidth;
- width = Math.min(width, this.options.maxWidth);
- width = Math.max(width, this.options.minWidth);
- style.width = (width + 1) + 'px';
- style.whiteSpace = '';
- style.height = '';
- var height = container.offsetHeight,
- maxHeight = this.options.maxHeight,
- scrolledClass = 'leaflet-popup-scrolled';
- if (maxHeight && height > maxHeight) {
- style.height = maxHeight + 'px';
- L.DomUtil.addClass(container, scrolledClass);
- } else {
- L.DomUtil.removeClass(container, scrolledClass);
- }
- this._containerWidth = this._container.offsetWidth;
- },
- _updatePosition: function () {
- if (!this._map) { return; }
- var pos = this._map.latLngToLayerPoint(this._latlng),
- animated = this._animated,
- offset = L.point(this.options.offset);
- if (animated) {
- L.DomUtil.setPosition(this._container, pos);
- }
- this._containerBottom = -offset.y - (animated ? 0 : pos.y);
- this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x);
- // bottom position the popup in case the height of the popup changes (images loading etc)
- this._container.style.bottom = this._containerBottom + 'px';
- this._container.style.left = this._containerLeft + 'px';
- },
- _zoomAnimation: function (opt) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
- L.DomUtil.setPosition(this._container, pos);
- },
- _adjustPan: function () {
- if (!this.options.autoPan) { return; }
- var map = this._map,
- containerHeight = this._container.offsetHeight,
- containerWidth = this._containerWidth,
- layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
- if (this._animated) {
- layerPos._add(L.DomUtil.getPosition(this._container));
- }
- var containerPos = map.layerPointToContainerPoint(layerPos),
- padding = L.point(this.options.autoPanPadding),
- paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
- paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
- size = map.getSize(),
- dx = 0,
- dy = 0;
- if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
- dx = containerPos.x + containerWidth - size.x + paddingBR.x;
- }
- if (containerPos.x - dx - paddingTL.x < 0) { // left
- dx = containerPos.x - paddingTL.x;
- }
- if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
- dy = containerPos.y + containerHeight - size.y + paddingBR.y;
- }
- if (containerPos.y - dy - paddingTL.y < 0) { // top
- dy = containerPos.y - paddingTL.y;
- }
- if (dx || dy) {
- map
- .fire('autopanstart')
- .panBy([dx, dy]);
- }
- },
- _onCloseButtonClick: function (e) {
- this._close();
- L.DomEvent.stop(e);
- }
- });
- L.popup = function (options, source) {
- return new L.Popup(options, source);
- };
- L.Map.include({
- openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
- this.closePopup();
- if (!(popup instanceof L.Popup)) {
- var content = popup;
- popup = new L.Popup(options)
- .setLatLng(latlng)
- .setContent(content);
- }
- popup._isOpen = true;
- this._popup = popup;
- return this.addLayer(popup);
- },
- closePopup: function (popup) {
- if (!popup || popup === this._popup) {
- popup = this._popup;
- this._popup = null;
- }
- if (popup) {
- this.removeLayer(popup);
- popup._isOpen = false;
- }
- return this;
- }
- });
- /*
- * Popup extension to L.Marker, adding popup-related methods.
- */
- L.Marker.include({
- openPopup: function () {
- if (this._popup && this._map && !this._map.hasLayer(this._popup)) {
- this._popup.setLatLng(this._latlng);
- this._map.openPopup(this._popup);
- }
- return this;
- },
- closePopup: function () {
- if (this._popup) {
- this._popup._close();
- }
- return this;
- },
- togglePopup: function () {
- if (this._popup) {
- if (this._popup._isOpen) {
- this.closePopup();
- } else {
- this.openPopup();
- }
- }
- return this;
- },
- bindPopup: function (content, options) {
- var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]);
- anchor = anchor.add(L.Popup.prototype.options.offset);
- if (options && options.offset) {
- anchor = anchor.add(options.offset);
- }
- options = L.extend({offset: anchor}, options);
- if (!this._popupHandlersAdded) {
- this
- .on('click', this.togglePopup, this)
- .on('remove', this.closePopup, this)
- .on('move', this._movePopup, this);
- this._popupHandlersAdded = true;
- }
- if (content instanceof L.Popup) {
- L.setOptions(content, options);
- this._popup = content;
- } else {
- this._popup = new L.Popup(options, this)
- .setContent(content);
- }
- return this;
- },
- setPopupContent: function (content) {
- if (this._popup) {
- this._popup.setContent(content);
- }
- return this;
- },
- unbindPopup: function () {
- if (this._popup) {
- this._popup = null;
- this
- .off('click', this.togglePopup, this)
- .off('remove', this.closePopup, this)
- .off('move', this._movePopup, this);
- this._popupHandlersAdded = false;
- }
- return this;
- },
- getPopup: function () {
- return this._popup;
- },
- _movePopup: function (e) {
- this._popup.setLatLng(e.latlng);
- }
- });
- /*
- * L.LayerGroup is a class to combine several layers into one so that
- * you can manipulate the group (e.g. add/remove it) as one layer.
- */
- L.LayerGroup = L.Class.extend({
- initialize: function (layers) {
- this._layers = {};
- var i, len;
- if (layers) {
- for (i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
- }
- }
- },
- addLayer: function (layer) {
- var id = this.getLayerId(layer);
- this._layers[id] = layer;
- if (this._map) {
- this._map.addLayer(layer);
- }
- return this;
- },
- removeLayer: function (layer) {
- var id = layer in this._layers ? layer : this.getLayerId(layer);
- if (this._map && this._layers[id]) {
- this._map.removeLayer(this._layers[id]);
- }
- delete this._layers[id];
- return this;
- },
- hasLayer: function (layer) {
- if (!layer) { return false; }
- return (layer in this._layers || this.getLayerId(layer) in this._layers);
- },
- clearLayers: function () {
- this.eachLayer(this.removeLayer, this);
- return this;
- },
- invoke: function (methodName) {
- var args = Array.prototype.slice.call(arguments, 1),
- i, layer;
- for (i in this._layers) {
- layer = this._layers[i];
- if (layer[methodName]) {
- layer[methodName].apply(layer, args);
- }
- }
- return this;
- },
- onAdd: function (map) {
- this._map = map;
- this.eachLayer(map.addLayer, map);
- },
- onRemove: function (map) {
- this.eachLayer(map.removeLayer, map);
- this._map = null;
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- eachLayer: function (method, context) {
- for (var i in this._layers) {
- method.call(context, this._layers[i]);
- }
- return this;
- },
- getLayer: function (id) {
- return this._layers[id];
- },
- getLayers: function () {
- var layers = [];
- for (var i in this._layers) {
- layers.push(this._layers[i]);
- }
- return layers;
- },
- setZIndex: function (zIndex) {
- return this.invoke('setZIndex', zIndex);
- },
- getLayerId: function (layer) {
- return L.stamp(layer);
- }
- });
- L.layerGroup = function (layers) {
- return new L.LayerGroup(layers);
- };
- /*
- * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
- * shared between a group of interactive layers (like vectors or markers).
- */
- L.FeatureGroup = L.LayerGroup.extend({
- includes: L.Mixin.Events,
- statics: {
- EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose'
- },
- addLayer: function (layer) {
- if (this.hasLayer(layer)) {
- return this;
- }
- if ('on' in layer) {
- layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
- }
- L.LayerGroup.prototype.addLayer.call(this, layer);
- if (this._popupContent && layer.bindPopup) {
- layer.bindPopup(this._popupContent, this._popupOptions);
- }
- return this.fire('layeradd', {layer: layer});
- },
- removeLayer: function (layer) {
- if (!this.hasLayer(layer)) {
- return this;
- }
- if (layer in this._layers) {
- layer = this._layers[layer];
- }
- layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this);
- L.LayerGroup.prototype.removeLayer.call(this, layer);
- if (this._popupContent) {
- this.invoke('unbindPopup');
- }
- return this.fire('layerremove', {layer: layer});
- },
- bindPopup: function (content, options) {
- this._popupContent = content;
- this._popupOptions = options;
- return this.invoke('bindPopup', content, options);
- },
- openPopup: function (latlng) {
- // open popup on the first layer
- for (var id in this._layers) {
- this._layers[id].openPopup(latlng);
- break;
- }
- return this;
- },
- setStyle: function (style) {
- return this.invoke('setStyle', style);
- },
- bringToFront: function () {
- return this.invoke('bringToFront');
- },
- bringToBack: function () {
- return this.invoke('bringToBack');
- },
- getBounds: function () {
- var bounds = new L.LatLngBounds();
- this.eachLayer(function (layer) {
- bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
- });
- return bounds;
- },
- _propagateEvent: function (e) {
- e = L.extend({
- layer: e.target,
- target: this
- }, e);
- this.fire(e.type, e);
- }
- });
- L.featureGroup = function (layers) {
- return new L.FeatureGroup(layers);
- };
- /*
- * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc.
- */
- L.Path = L.Class.extend({
- includes: [L.Mixin.Events],
- statics: {
- // how much to extend the clip area around the map view
- // (relative to its size, e.g. 0.5 is half the screen in each direction)
- // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is)
- CLIP_PADDING: (function () {
- var max = L.Browser.mobile ? 1280 : 2000,
- target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2;
- return Math.max(0, Math.min(0.5, target));
- })()
- },
- options: {
- stroke: true,
- color: '#0033ff',
- dashArray: null,
- lineCap: null,
- lineJoin: null,
- weight: 5,
- opacity: 0.5,
- fill: false,
- fillColor: null, //same as color by default
- fillOpacity: 0.2,
- clickable: true
- },
- initialize: function (options) {
- L.setOptions(this, options);
- },
- onAdd: function (map) {
- this._map = map;
- if (!this._container) {
- this._initElements();
- this._initEvents();
- }
- this.projectLatlngs();
- this._updatePath();
- if (this._container) {
- this._map._pathRoot.appendChild(this._container);
- }
- this.fire('add');
- map.on({
- 'viewreset': this.projectLatlngs,
- 'moveend': this._updatePath
- }, this);
- },
- addTo: function (map) {
- map.addLayer(this);
- return this;
- },
- onRemove: function (map) {
- map._pathRoot.removeChild(this._container);
- // Need to fire remove event before we set _map to null as the event hooks might need the object
- this.fire('remove');
- this._map = null;
- if (L.Browser.vml) {
- this._container = null;
- this._stroke = null;
- this._fill = null;
- }
- map.off({
- 'viewreset': this.projectLatlngs,
- 'moveend': this._updatePath
- }, this);
- },
- projectLatlngs: function () {
- // do all projection stuff here
- },
- setStyle: function (style) {
- L.setOptions(this, style);
- if (this._container) {
- this._updateStyle();
- }
- return this;
- },
- redraw: function () {
- if (this._map) {
- this.projectLatlngs();
- this._updatePath();
- }
- return this;
- }
- });
- L.Map.include({
- _updatePathViewport: function () {
- var p = L.Path.CLIP_PADDING,
- size = this.getSize(),
- panePos = L.DomUtil.getPosition(this._mapPane),
- min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()),
- max = min.add(size.multiplyBy(1 + p * 2)._round());
- this._pathViewport = new L.Bounds(min, max);
- }
- });
- /*
- * Extends L.Path with SVG-specific rendering code.
- */
- L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
- L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
- L.Path = L.Path.extend({
- statics: {
- SVG: L.Browser.svg
- },
- bringToFront: function () {
- var root = this._map._pathRoot,
- path = this._container;
- if (path && root.lastChild !== path) {
- root.appendChild(path);
- }
- return this;
- },
- bringToBack: function () {
- var root = this._map._pathRoot,
- path = this._container,
- first = root.firstChild;
- if (path && first !== path) {
- root.insertBefore(path, first);
- }
- return this;
- },
- getPathString: function () {
- // form path string here
- },
- _createElement: function (name) {
- return document.createElementNS(L.Path.SVG_NS, name);
- },
- _initElements: function () {
- this._map._initPathRoot();
- this._initPath();
- this._initStyle();
- },
- _initPath: function () {
- this._container = this._createElement('g');
- this._path = this._createElement('path');
- if (this.options.className) {
- L.DomUtil.addClass(this._path, this.options.className);
- }
- this._container.appendChild(this._path);
- },
- _initStyle: function () {
- if (this.options.stroke) {
- this._path.setAttribute('stroke-linejoin', 'round');
- this._path.setAttribute('stroke-linecap', 'round');
- }
- if (this.options.fill) {
- this._path.setAttribute('fill-rule', 'evenodd');
- }
- if (this.options.pointerEvents) {
- this._path.setAttribute('pointer-events', this.options.pointerEvents);
- }
- if (!this.options.clickable && !this.options.pointerEvents) {
- this._path.setAttribute('pointer-events', 'none');
- }
- this._updateStyle();
- },
- _updateStyle: function () {
- if (this.options.stroke) {
- this._path.setAttribute('stroke', this.options.color);
- this._path.setAttribute('stroke-opacity', this.options.opacity);
- this._path.setAttribute('stroke-width', this.options.weight);
- if (this.options.dashArray) {
- this._path.setAttribute('stroke-dasharray', this.options.dashArray);
- } else {
- this._path.removeAttribute('stroke-dasharray');
- }
- if (this.options.lineCap) {
- this._path.setAttribute('stroke-linecap', this.options.lineCap);
- }
- if (this.options.lineJoin) {
- this._path.setAttribute('stroke-linejoin', this.options.lineJoin);
- }
- } else {
- this._path.setAttribute('stroke', 'none');
- }
- if (this.options.fill) {
- this._path.setAttribute('fill', this.options.fillColor || this.options.color);
- this._path.setAttribute('fill-opacity', this.options.fillOpacity);
- } else {
- this._path.setAttribute('fill', 'none');
- }
- },
- _updatePath: function () {
- var str = this.getPathString();
- if (!str) {
- // fix webkit empty string parsing bug
- str = 'M0 0';
- }
- this._path.setAttribute('d', str);
- },
- // TODO remove duplication with L.Map
- _initEvents: function () {
- if (this.options.clickable) {
- if (L.Browser.svg || !L.Browser.vml) {
- L.DomUtil.addClass(this._path, 'leaflet-clickable');
- }
- L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
- var events = ['dblclick', 'mousedown', 'mouseover',
- 'mouseout', 'mousemove', 'contextmenu'];
- for (var i = 0; i < events.length; i++) {
- L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
- }
- }
- },
- _onMouseClick: function (e) {
- if (this._map.dragging && this._map.dragging.moved()) { return; }
- this._fireMouseEvent(e);
- },
- _fireMouseEvent: function (e) {
- if (!this.hasEventListeners(e.type)) { return; }
- var map = this._map,
- containerPoint = map.mouseEventToContainerPoint(e),
- layerPoint = map.containerPointToLayerPoint(containerPoint),
- latlng = map.layerPointToLatLng(layerPoint);
- this.fire(e.type, {
- latlng: latlng,
- layerPoint: layerPoint,
- containerPoint: containerPoint,
- originalEvent: e
- });
- if (e.type === 'contextmenu') {
- L.DomEvent.preventDefault(e);
- }
- if (e.type !== 'mousemove') {
- L.DomEvent.stopPropagation(e);
- }
- }
- });
- L.Map.include({
- _initPathRoot: function () {
- if (!this._pathRoot) {
- this._pathRoot = L.Path.prototype._createElement('svg');
- this._panes.overlayPane.appendChild(this._pathRoot);
- if (this.options.zoomAnimation && L.Browser.any3d) {
- L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated');
- this.on({
- 'zoomanim': this._animatePathZoom,
- 'zoomend': this._endPathZoom
- });
- } else {
- L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide');
- }
- this.on('moveend', this._updateSvgViewport);
- this._updateSvgViewport();
- }
- },
- _animatePathZoom: function (e) {
- var scale = this.getZoomScale(e.zoom),
- offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min);
- this._pathRoot.style[L.DomUtil.TRANSFORM] =
- L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') ';
- this._pathZooming = true;
- },
- _endPathZoom: function () {
- this._pathZooming = false;
- },
- _updateSvgViewport: function () {
- if (this._pathZooming) {
- // Do not update SVGs while a zoom animation is going on otherwise the animation will break.
- // When the zoom animation ends we will be updated again anyway
- // This fixes the case where you do a momentum move and zoom while the move is still ongoing.
- return;
- }
- this._updatePathViewport();
- var vp = this._pathViewport,
- min = vp.min,
- max = vp.max,
- width = max.x - min.x,
- height = max.y - min.y,
- root = this._pathRoot,
- pane = this._panes.overlayPane;
- // Hack to make flicker on drag end on mobile webkit less irritating
- if (L.Browser.mobileWebkit) {
- pane.removeChild(root);
- }
- L.DomUtil.setPosition(root, min);
- root.setAttribute('width', width);
- root.setAttribute('height', height);
- root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
- if (L.Browser.mobileWebkit) {
- pane.appendChild(root);
- }
- }
- });
- /*
- * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods.
- */
- L.Path.include({
- bindPopup: function (content, options) {
- if (content instanceof L.Popup) {
- this._popup = content;
- } else {
- if (!this._popup || options) {
- this._popup = new L.Popup(options, this);
- }
- this._popup.setContent(content);
- }
- if (!this._popupHandlersAdded) {
- this
- .on('click', this._openPopup, this)
- .on('remove', this.closePopup, this);
- this._popupHandlersAdded = true;
- }
- return this;
- },
- unbindPopup: function () {
- if (this._popup) {
- this._popup = null;
- this
- .off('click', this._openPopup)
- .off('remove', this.closePopup);
- this._popupHandlersAdded = false;
- }
- return this;
- },
- openPopup: function (latlng) {
- if (this._popup) {
- // open the popup from one of the path's points if not specified
- latlng = latlng || this._latlng ||
- this._latlngs[Math.floor(this._latlngs.length / 2)];
- this._openPopup({latlng: latlng});
- }
- return this;
- },
- closePopup: function () {
- if (this._popup) {
- this._popup._close();
- }
- return this;
- },
- _openPopup: function (e) {
- this._popup.setLatLng(e.latlng);
- this._map.openPopup(this._popup);
- }
- });
- /*
- * Vector rendering for IE6-8 through VML.
- * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
- */
- L.Browser.vml = !L.Browser.svg && (function () {
- try {
- var div = document.createElement('div');
- div.innerHTML = '<v:shape adj="1"/>';
- var shape = div.firstChild;
- shape.style.behavior = 'url(#default#VML)';
- return shape && (typeof shape.adj === 'object');
- } catch (e) {
- return false;
- }
- }());
- L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
- statics: {
- VML: true,
- CLIP_PADDING: 0.02
- },
- _createElement: (function () {
- try {
- document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
- return function (name) {
- return document.createElement('<lvml:' + name + ' class="lvml">');
- };
- } catch (e) {
- return function (name) {
- return document.createElement(
- '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
- };
- }
- }()),
- _initPath: function () {
- var container = this._container = this._createElement('shape');
- L.DomUtil.addClass(container, 'leaflet-vml-shape' +
- (this.options.className ? ' ' + this.options.className : ''));
- if (this.options.clickable) {
- L.DomUtil.addClass(container, 'leaflet-clickable');
- }
- container.coordsize = '1 1';
- this._path = this._createElement('path');
- container.appendChild(this._path);
- this._map._pathRoot.appendChild(container);
- },
- _initStyle: function () {
- this._updateStyle();
- },
- _updateStyle: function () {
- var stroke = this._stroke,
- fill = this._fill,
- options = this.options,
- container = this._container;
- container.stroked = options.stroke;
- container.filled = options.fill;
- if (options.stroke) {
- if (!stroke) {
- stroke = this._stroke = this._createElement('stroke');
- stroke.endcap = 'round';
- container.appendChild(stroke);
- }
- stroke.weight = options.weight + 'px';
- stroke.color = options.color;
- stroke.opacity = options.opacity;
- if (options.dashArray) {
- stroke.dashStyle = L.Util.isArray(options.dashArray) ?
- options.dashArray.join(' ') :
- options.dashArray.replace(/( *, *)/g, ' ');
- } else {
- stroke.dashStyle = '';
- }
- if (options.lineCap) {
- stroke.endcap = options.lineCap.replace('butt', 'flat');
- }
- if (options.lineJoin) {
- stroke.joinstyle = options.lineJoin;
- }
- } else if (stroke) {
- container.removeChild(stroke);
- this._stroke = null;
- }
- if (options.fill) {
- if (!fill) {
- fill = this._fill = this._createElement('fill');
- container.appendChild(fill);
- }
- fill.color = options.fillColor || options.color;
- fill.opacity = options.fillOpacity;
- } else if (fill) {
- container.removeChild(fill);
- this._fill = null;
- }
- },
- _updatePath: function () {
- var style = this._container.style;
- style.display = 'none';
- this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
- style.display = '';
- }
- });
- L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
- _initPathRoot: function () {
- if (this._pathRoot) { return; }
- var root = this._pathRoot = document.createElement('div');
- root.className = 'leaflet-vml-container';
- this._panes.overlayPane.appendChild(root);
- this.on('moveend', this._updatePathViewport);
- this._updatePathViewport();
- }
- });
- /*
- * Vector rendering for all browsers that support canvas.
- */
- L.Browser.canvas = (function () {
- return !!document.createElement('canvas').getContext;
- }());
- L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
- statics: {
- //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
- CANVAS: true,
- SVG: false
- },
- redraw: function () {
- if (this._map) {
- this.projectLatlngs();
- this._requestUpdate();
- }
- return this;
- },
- setStyle: function (style) {
- L.setOptions(this, style);
- if (this._map) {
- this._updateStyle();
- this._requestUpdate();
- }
- return this;
- },
- onRemove: function (map) {
- map
- .off('viewreset', this.projectLatlngs, this)
- .off('moveend', this._updatePath, this);
- if (this.options.clickable) {
- this._map.off('click', this._onClick, this);
- this._map.off('mousemove', this._onMouseMove, this);
- }
- this._requestUpdate();
-
- this.fire('remove');
- this._map = null;
- },
- _requestUpdate: function () {
- if (this._map && !L.Path._updateRequest) {
- L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
- }
- },
- _fireMapMoveEnd: function () {
- L.Path._updateRequest = null;
- this.fire('moveend');
- },
- _initElements: function () {
- this._map._initPathRoot();
- this._ctx = this._map._canvasCtx;
- },
- _updateStyle: function () {
- var options = this.options;
- if (options.stroke) {
- this._ctx.lineWidth = options.weight;
- this._ctx.strokeStyle = options.color;
- }
- if (options.fill) {
- this._ctx.fillStyle = options.fillColor || options.color;
- }
- },
- _drawPath: function () {
- var i, j, len, len2, point, drawMethod;
- this._ctx.beginPath();
- for (i = 0, len = this._parts.length; i < len; i++) {
- for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
- point = this._parts[i][j];
- drawMethod = (j === 0 ? 'move' : 'line') + 'To';
- this._ctx[drawMethod](point.x, point.y);
- }
- // TODO refactor ugly hack
- if (this instanceof L.Polygon) {
- this._ctx.closePath();
- }
- }
- },
- _checkIfEmpty: function () {
- return !this._parts.length;
- },
- _updatePath: function () {
- if (this._checkIfEmpty()) { return; }
- var ctx = this._ctx,
- options = this.options;
- this._drawPath();
- ctx.save();
- this._updateStyle();
- if (options.fill) {
- ctx.globalAlpha = options.fillOpacity;
- ctx.fill();
- }
- if (options.stroke) {
- ctx.globalAlpha = options.opacity;
- ctx.stroke();
- }
- ctx.restore();
- // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
- },
- _initEvents: function () {
- if (this.options.clickable) {
- // TODO dblclick
- this._map.on('mousemove', this._onMouseMove, this);
- this._map.on('click', this._onClick, this);
- }
- },
- _onClick: function (e) {
- if (this._containsPoint(e.layerPoint)) {
- this.fire('click', e);
- }
- },
- _onMouseMove: function (e) {
- if (!this._map || this._map._animatingZoom) { return; }
- // TODO don't do on each move
- if (this._containsPoint(e.layerPoint)) {
- this._ctx.canvas.style.cursor = 'pointer';
- this._mouseInside = true;
- this.fire('mouseover', e);
- } else if (this._mouseInside) {
- this._ctx.canvas.style.cursor = '';
- this._mouseInside = false;
- this.fire('mouseout', e);
- }
- }
- });
- L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
- _initPathRoot: function () {
- var root = this._pathRoot,
- ctx;
- if (!root) {
- root = this._pathRoot = document.createElement('canvas');
- root.style.position = 'absolute';
- ctx = this._canvasCtx = root.getContext('2d');
- ctx.lineCap = 'round';
- ctx.lineJoin = 'round';
- this._panes.overlayPane.appendChild(root);
- if (this.options.zoomAnimation) {
- this._pathRoot.className = 'leaflet-zoom-animated';
- this.on('zoomanim', this._animatePathZoom);
- this.on('zoomend', this._endPathZoom);
- }
- this.on('moveend', this._updateCanvasViewport);
- this._updateCanvasViewport();
- }
- },
- _updateCanvasViewport: function () {
- // don't redraw while zooming. See _updateSvgViewport for more details
- if (this._pathZooming) { return; }
- this._updatePathViewport();
- var vp = this._pathViewport,
- min = vp.min,
- size = vp.max.subtract(min),
- root = this._pathRoot;
- //TODO check if this works properly on mobile webkit
- L.DomUtil.setPosition(root, min);
- root.width = size.x;
- root.height = size.y;
- root.getContext('2d').translate(-min.x, -min.y);
- }
- });
- /*
- * L.LineUtil contains different utility functions for line segments
- * and polylines (clipping, simplification, distances, etc.)
- */
- /*jshint bitwise:false */ // allow bitwise operations for this file
- L.LineUtil = {
- // Simplify polyline with vertex reduction and Douglas-Peucker simplification.
- // Improves rendering performance dramatically by lessening the number of points to draw.
- simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
- if (!tolerance || !points.length) {
- return points.slice();
- }
- var sqTolerance = tolerance * tolerance;
- // stage 1: vertex reduction
- points = this._reducePoints(points, sqTolerance);
- // stage 2: Douglas-Peucker simplification
- points = this._simplifyDP(points, sqTolerance);
- return points;
- },
- // distance from a point to a segment between two points
- pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
- return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
- },
- closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
- return this._sqClosestPointOnSegment(p, p1, p2);
- },
- // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
- _simplifyDP: function (points, sqTolerance) {
- var len = points.length,
- ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
- markers = new ArrayConstructor(len);
- markers[0] = markers[len - 1] = 1;
- this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
- var i,
- newPoints = [];
- for (i = 0; i < len; i++) {
- if (markers[i]) {
- newPoints.push(points[i]);
- }
- }
- return newPoints;
- },
- _simplifyDPStep: function (points, markers, sqTolerance, first, last) {
- var maxSqDist = 0,
- index, i, sqDist;
- for (i = first + 1; i <= last - 1; i++) {
- sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
- if (sqDist > maxSqDist) {
- index = i;
- maxSqDist = sqDist;
- }
- }
- if (maxSqDist > sqTolerance) {
- markers[index] = 1;
- this._simplifyDPStep(points, markers, sqTolerance, first, index);
- this._simplifyDPStep(points, markers, sqTolerance, index, last);
- }
- },
- // reduce points that are too close to each other to a single point
- _reducePoints: function (points, sqTolerance) {
- var reducedPoints = [points[0]];
- for (var i = 1, prev = 0, len = points.length; i < len; i++) {
- if (this._sqDist(points[i], points[prev]) > sqTolerance) {
- reducedPoints.push(points[i]);
- prev = i;
- }
- }
- if (prev < len - 1) {
- reducedPoints.push(points[len - 1]);
- }
- return reducedPoints;
- },
- // Cohen-Sutherland line clipping algorithm.
- // Used to avoid rendering parts of a polyline that are not currently visible.
- clipSegment: function (a, b, bounds, useLastCode) {
- var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
- codeB = this._getBitCode(b, bounds),
- codeOut, p, newCode;
- // save 2nd code to avoid calculating it on the next segment
- this._lastCode = codeB;
- while (true) {
- // if a,b is inside the clip window (trivial accept)
- if (!(codeA | codeB)) {
- return [a, b];
- // if a,b is outside the clip window (trivial reject)
- } else if (codeA & codeB) {
- return false;
- // other cases
- } else {
- codeOut = codeA || codeB;
- p = this._getEdgeIntersection(a, b, codeOut, bounds);
- newCode = this._getBitCode(p, bounds);
- if (codeOut === codeA) {
- a = p;
- codeA = newCode;
- } else {
- b = p;
- codeB = newCode;
- }
- }
- }
- },
- _getEdgeIntersection: function (a, b, code, bounds) {
- var dx = b.x - a.x,
- dy = b.y - a.y,
- min = bounds.min,
- max = bounds.max;
- if (code & 8) { // top
- return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
- } else if (code & 4) { // bottom
- return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
- } else if (code & 2) { // right
- return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
- } else if (code & 1) { // left
- return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
- }
- },
- _getBitCode: function (/*Point*/ p, bounds) {
- var code = 0;
- if (p.x < bounds.min.x) { // left
- code |= 1;
- } else if (p.x > bounds.max.x) { // right
- code |= 2;
- }
- if (p.y < bounds.min.y) { // bottom
- code |= 4;
- } else if (p.y > bounds.max.y) { // top
- code |= 8;
- }
- return code;
- },
- // square distance (to avoid unnecessary Math.sqrt calls)
- _sqDist: function (p1, p2) {
- var dx = p2.x - p1.x,
- dy = p2.y - p1.y;
- return dx * dx + dy * dy;
- },
- // return closest point on segment or distance to that point
- _sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
- var x = p1.x,
- y = p1.y,
- dx = p2.x - x,
- dy = p2.y - y,
- dot = dx * dx + dy * dy,
- t;
- if (dot > 0) {
- t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
- if (t > 1) {
- x = p2.x;
- y = p2.y;
- } else if (t > 0) {
- x += dx * t;
- y += dy * t;
- }
- }
- dx = p.x - x;
- dy = p.y - y;
- return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
- }
- };
- /*
- * L.Polyline is used to display polylines on a map.
- */
- L.Polyline = L.Path.extend({
- initialize: function (latlngs, options) {
- L.Path.prototype.initialize.call(this, options);
- this._latlngs = this._convertLatLngs(latlngs);
- },
- options: {
- // how much to simplify the polyline on each zoom level
- // more = better performance and smoother look, less = more accurate
- smoothFactor: 1.0,
- noClip: false
- },
- projectLatlngs: function () {
- this._originalPoints = [];
- for (var i = 0, len = this._latlngs.length; i < len; i++) {
- this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
- }
- },
- getPathString: function () {
- for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
- str += this._getPathPartStr(this._parts[i]);
- }
- return str;
- },
- getLatLngs: function () {
- return this._latlngs;
- },
- setLatLngs: function (latlngs) {
- this._latlngs = this._convertLatLngs(latlngs);
- return this.redraw();
- },
- addLatLng: function (latlng) {
- this._latlngs.push(L.latLng(latlng));
- return this.redraw();
- },
- spliceLatLngs: function () { // (Number index, Number howMany)
- var removed = [].splice.apply(this._latlngs, arguments);
- this._convertLatLngs(this._latlngs, true);
- this.redraw();
- return removed;
- },
- closestLayerPoint: function (p) {
- var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
- for (var j = 0, jLen = parts.length; j < jLen; j++) {
- var points = parts[j];
- for (var i = 1, len = points.length; i < len; i++) {
- p1 = points[i - 1];
- p2 = points[i];
- var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
- if (sqDist < minDistance) {
- minDistance = sqDist;
- minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
- }
- }
- }
- if (minPoint) {
- minPoint.distance = Math.sqrt(minDistance);
- }
- return minPoint;
- },
- getBounds: function () {
- return new L.LatLngBounds(this.getLatLngs());
- },
- _convertLatLngs: function (latlngs, overwrite) {
- var i, len, target = overwrite ? latlngs : [];
- for (i = 0, len = latlngs.length; i < len; i++) {
- if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') {
- return;
- }
- target[i] = L.latLng(latlngs[i]);
- }
- return target;
- },
- _initEvents: function () {
- L.Path.prototype._initEvents.call(this);
- },
- _getPathPartStr: function (points) {
- var round = L.Path.VML;
- for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
- p = points[j];
- if (round) {
- p._round();
- }
- str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
- }
- return str;
- },
- _clipPoints: function () {
- var points = this._originalPoints,
- len = points.length,
- i, k, segment;
- if (this.options.noClip) {
- this._parts = [points];
- return;
- }
- this._parts = [];
- var parts = this._parts,
- vp = this._map._pathViewport,
- lu = L.LineUtil;
- for (i = 0, k = 0; i < len - 1; i++) {
- segment = lu.clipSegment(points[i], points[i + 1], vp, i);
- if (!segment) {
- continue;
- }
- parts[k] = parts[k] || [];
- parts[k].push(segment[0]);
- // if segment goes out of screen, or it's the last one, it's the end of the line part
- if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
- parts[k].push(segment[1]);
- k++;
- }
- }
- },
- // simplify each clipped part of the polyline
- _simplifyPoints: function () {
- var parts = this._parts,
- lu = L.LineUtil;
- for (var i = 0, len = parts.length; i < len; i++) {
- parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
- }
- },
- _updatePath: function () {
- if (!this._map) { return; }
- this._clipPoints();
- this._simplifyPoints();
- L.Path.prototype._updatePath.call(this);
- }
- });
- L.polyline = function (latlngs, options) {
- return new L.Polyline(latlngs, options);
- };
- /*
- * L.PolyUtil contains utility functions for polygons (clipping, etc.).
- */
- /*jshint bitwise:false */ // allow bitwise operations here
- L.PolyUtil = {};
- /*
- * Sutherland-Hodgeman polygon clipping algorithm.
- * Used to avoid rendering parts of a polygon that are not currently visible.
- */
- L.PolyUtil.clipPolygon = function (points, bounds) {
- var clippedPoints,
- edges = [1, 4, 2, 8],
- i, j, k,
- a, b,
- len, edge, p,
- lu = L.LineUtil;
- for (i = 0, len = points.length; i < len; i++) {
- points[i]._code = lu._getBitCode(points[i], bounds);
- }
- // for each edge (left, bottom, right, top)
- for (k = 0; k < 4; k++) {
- edge = edges[k];
- clippedPoints = [];
- for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
- a = points[i];
- b = points[j];
- // if a is inside the clip window
- if (!(a._code & edge)) {
- // if b is outside the clip window (a->b goes out of screen)
- if (b._code & edge) {
- p = lu._getEdgeIntersection(b, a, edge, bounds);
- p._code = lu._getBitCode(p, bounds);
- clippedPoints.push(p);
- }
- clippedPoints.push(a);
- // else if b is inside the clip window (a->b enters the screen)
- } else if (!(b._code & edge)) {
- p = lu._getEdgeIntersection(b, a, edge, bounds);
- p._code = lu._getBitCode(p, bounds);
- clippedPoints.push(p);
- }
- }
- points = clippedPoints;
- }
- return points;
- };
- /*
- * L.Polygon is used to display polygons on a map.
- */
- L.Polygon = L.Polyline.extend({
- options: {
- fill: true
- },
- initialize: function (latlngs, options) {
- L.Polyline.prototype.initialize.call(this, latlngs, options);
- this._initWithHoles(latlngs);
- },
- _initWithHoles: function (latlngs) {
- var i, len, hole;
- if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
- this._latlngs = this._convertLatLngs(latlngs[0]);
- this._holes = latlngs.slice(1);
- for (i = 0, len = this._holes.length; i < len; i++) {
- hole = this._holes[i] = this._convertLatLngs(this._holes[i]);
- if (hole[0].equals(hole[hole.length - 1])) {
- hole.pop();
- }
- }
- }
- // filter out last point if its equal to the first one
- latlngs = this._latlngs;
- if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) {
- latlngs.pop();
- }
- },
- projectLatlngs: function () {
- L.Polyline.prototype.projectLatlngs.call(this);
- // project polygon holes points
- // TODO move this logic to Polyline to get rid of duplication
- this._holePoints = [];
- if (!this._holes) { return; }
- var i, j, len, len2;
- for (i = 0, len = this._holes.length; i < len; i++) {
- this._holePoints[i] = [];
- for (j = 0, len2 = this._holes[i].length; j < len2; j++) {
- this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
- }
- }
- },
- setLatLngs: function (latlngs) {
- if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
- this._initWithHoles(latlngs);
- return this.redraw();
- } else {
- return L.Polyline.prototype.setLatLngs.call(this, latlngs);
- }
- },
- _clipPoints: function () {
- var points = this._originalPoints,
- newParts = [];
- this._parts = [points].concat(this._holePoints);
- if (this.options.noClip) { return; }
- for (var i = 0, len = this._parts.length; i < len; i++) {
- var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
- if (clipped.length) {
- newParts.push(clipped);
- }
- }
- this._parts = newParts;
- },
- _getPathPartStr: function (points) {
- var str = L.Polyline.prototype._getPathPartStr.call(this, points);
- return str + (L.Browser.svg ? 'z' : 'x');
- }
- });
- L.polygon = function (latlngs, options) {
- return new L.Polygon(latlngs, options);
- };
- /*
- * Contains L.MultiPolyline and L.MultiPolygon layers.
- */
- (function () {
- function createMulti(Klass) {
- return L.FeatureGroup.extend({
- initialize: function (latlngs, options) {
- this._layers = {};
- this._options = options;
- this.setLatLngs(latlngs);
- },
- setLatLngs: function (latlngs) {
- var i = 0,
- len = latlngs.length;
- this.eachLayer(function (layer) {
- if (i < len) {
- layer.setLatLngs(latlngs[i++]);
- } else {
- this.removeLayer(layer);
- }
- }, this);
- while (i < len) {
- this.addLayer(new Klass(latlngs[i++], this._options));
- }
- return this;
- },
- getLatLngs: function () {
- var latlngs = [];
- this.eachLayer(function (layer) {
- latlngs.push(layer.getLatLngs());
- });
- return latlngs;
- }
- });
- }
- L.MultiPolyline = createMulti(L.Polyline);
- L.MultiPolygon = createMulti(L.Polygon);
- L.multiPolyline = function (latlngs, options) {
- return new L.MultiPolyline(latlngs, options);
- };
- L.multiPolygon = function (latlngs, options) {
- return new L.MultiPolygon(latlngs, options);
- };
- }());
- /*
- * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
- */
- L.Rectangle = L.Polygon.extend({
- initialize: function (latLngBounds, options) {
- L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
- },
- setBounds: function (latLngBounds) {
- this.setLatLngs(this._boundsToLatLngs(latLngBounds));
- },
- _boundsToLatLngs: function (latLngBounds) {
- latLngBounds = L.latLngBounds(latLngBounds);
- return [
- latLngBounds.getSouthWest(),
- latLngBounds.getNorthWest(),
- latLngBounds.getNorthEast(),
- latLngBounds.getSouthEast()
- ];
- }
- });
- L.rectangle = function (latLngBounds, options) {
- return new L.Rectangle(latLngBounds, options);
- };
- /*
- * L.Circle is a circle overlay (with a certain radius in meters).
- */
- L.Circle = L.Path.extend({
- initialize: function (latlng, radius, options) {
- L.Path.prototype.initialize.call(this, options);
- this._latlng = L.latLng(latlng);
- this._mRadius = radius;
- },
- options: {
- fill: true
- },
- setLatLng: function (latlng) {
- this._latlng = L.latLng(latlng);
- return this.redraw();
- },
- setRadius: function (radius) {
- this._mRadius = radius;
- return this.redraw();
- },
- projectLatlngs: function () {
- var lngRadius = this._getLngRadius(),
- latlng = this._latlng,
- pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]);
- this._point = this._map.latLngToLayerPoint(latlng);
- this._radius = Math.max(this._point.x - pointLeft.x, 1);
- },
- getBounds: function () {
- var lngRadius = this._getLngRadius(),
- latRadius = (this._mRadius / 40075017) * 360,
- latlng = this._latlng;
- return new L.LatLngBounds(
- [latlng.lat - latRadius, latlng.lng - lngRadius],
- [latlng.lat + latRadius, latlng.lng + lngRadius]);
- },
- getLatLng: function () {
- return this._latlng;
- },
- getPathString: function () {
- var p = this._point,
- r = this._radius;
- if (this._checkIfEmpty()) {
- return '';
- }
- if (L.Browser.svg) {
- return 'M' + p.x + ',' + (p.y - r) +
- 'A' + r + ',' + r + ',0,1,1,' +
- (p.x - 0.1) + ',' + (p.y - r) + ' z';
- } else {
- p._round();
- r = Math.round(r);
- return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360);
- }
- },
- getRadius: function () {
- return this._mRadius;
- },
- // TODO Earth hardcoded, move into projection code!
- _getLatRadius: function () {
- return (this._mRadius / 40075017) * 360;
- },
- _getLngRadius: function () {
- return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
- },
- _checkIfEmpty: function () {
- if (!this._map) {
- return false;
- }
- var vp = this._map._pathViewport,
- r = this._radius,
- p = this._point;
- return p.x - r > vp.max.x || p.y - r > vp.max.y ||
- p.x + r < vp.min.x || p.y + r < vp.min.y;
- }
- });
- L.circle = function (latlng, radius, options) {
- return new L.Circle(latlng, radius, options);
- };
- /*
- * L.CircleMarker is a circle overlay with a permanent pixel radius.
- */
- L.CircleMarker = L.Circle.extend({
- options: {
- radius: 10,
- weight: 2
- },
- initialize: function (latlng, options) {
- L.Circle.prototype.initialize.call(this, latlng, null, options);
- this._radius = this.options.radius;
- },
- projectLatlngs: function () {
- this._point = this._map.latLngToLayerPoint(this._latlng);
- },
- _updateStyle : function () {
- L.Circle.prototype._updateStyle.call(this);
- this.setRadius(this.options.radius);
- },
- setLatLng: function (latlng) {
- L.Circle.prototype.setLatLng.call(this, latlng);
- if (this._popup && this._popup._isOpen) {
- this._popup.setLatLng(latlng);
- }
- return this;
- },
- setRadius: function (radius) {
- this.options.radius = this._radius = radius;
- return this.redraw();
- },
- getRadius: function () {
- return this._radius;
- }
- });
- L.circleMarker = function (latlng, options) {
- return new L.CircleMarker(latlng, options);
- };
- /*
- * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines.
- */
- L.Polyline.include(!L.Path.CANVAS ? {} : {
- _containsPoint: function (p, closed) {
- var i, j, k, len, len2, dist, part,
- w = this.options.weight / 2;
- if (L.Browser.touch) {
- w += 10; // polyline click tolerance on touch devices
- }
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- if (!closed && (j === 0)) {
- continue;
- }
- dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
- if (dist <= w) {
- return true;
- }
- }
- }
- return false;
- }
- });
- /*
- * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
- */
- L.Polygon.include(!L.Path.CANVAS ? {} : {
- _containsPoint: function (p) {
- var inside = false,
- part, p1, p2,
- i, j, k,
- len, len2;
- // TODO optimization: check if within bounds first
- if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
- // click on polygon border
- return true;
- }
- // ray casting algorithm for detecting if point is in polygon
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- p1 = part[j];
- p2 = part[k];
- if (((p1.y > p.y) !== (p2.y > p.y)) &&
- (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
- inside = !inside;
- }
- }
- }
- return inside;
- }
- });
- /*
- * Extends L.Circle with Canvas-specific code.
- */
- L.Circle.include(!L.Path.CANVAS ? {} : {
- _drawPath: function () {
- var p = this._point;
- this._ctx.beginPath();
- this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
- },
- _containsPoint: function (p) {
- var center = this._point,
- w2 = this.options.stroke ? this.options.weight / 2 : 0;
- return (p.distanceTo(center) <= this._radius + w2);
- }
- });
- /*
- * CircleMarker canvas specific drawing parts.
- */
- L.CircleMarker.include(!L.Path.CANVAS ? {} : {
- _updateStyle: function () {
- L.Path.prototype._updateStyle.call(this);
- }
- });
- /*
- * L.GeoJSON turns any GeoJSON data into a Leaflet layer.
- */
- L.GeoJSON = L.FeatureGroup.extend({
- initialize: function (geojson, options) {
- L.setOptions(this, options);
- this._layers = {};
- if (geojson) {
- this.addData(geojson);
- }
- },
- addData: function (geojson) {
- var features = L.Util.isArray(geojson) ? geojson : geojson.features,
- i, len, feature;
- if (features) {
- for (i = 0, len = features.length; i < len; i++) {
- // Only add this if geometry or geometries are set and not null
- feature = features[i];
- if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
- this.addData(features[i]);
- }
- }
- return this;
- }
- var options = this.options;
- if (options.filter && !options.filter(geojson)) { return; }
- var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options);
- layer.feature = L.GeoJSON.asFeature(geojson);
- layer.defaultOptions = layer.options;
- this.resetStyle(layer);
- if (options.onEachFeature) {
- options.onEachFeature(geojson, layer);
- }
- return this.addLayer(layer);
- },
- resetStyle: function (layer) {
- var style = this.options.style;
- if (style) {
- // reset any custom styles
- L.Util.extend(layer.options, layer.defaultOptions);
- this._setLayerStyle(layer, style);
- }
- },
- setStyle: function (style) {
- this.eachLayer(function (layer) {
- this._setLayerStyle(layer, style);
- }, this);
- },
- _setLayerStyle: function (layer, style) {
- if (typeof style === 'function') {
- style = style(layer.feature);
- }
- if (layer.setStyle) {
- layer.setStyle(style);
- }
- }
- });
- L.extend(L.GeoJSON, {
- geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) {
- var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
- coords = geometry.coordinates,
- layers = [],
- latlng, latlngs, i, len;
- coordsToLatLng = coordsToLatLng || this.coordsToLatLng;
- switch (geometry.type) {
- case 'Point':
- latlng = coordsToLatLng(coords);
- return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
- case 'MultiPoint':
- for (i = 0, len = coords.length; i < len; i++) {
- latlng = coordsToLatLng(coords[i]);
- layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
- }
- return new L.FeatureGroup(layers);
- case 'LineString':
- latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng);
- return new L.Polyline(latlngs, vectorOptions);
- case 'Polygon':
- if (coords.length === 2 && !coords[1].length) {
- throw new Error('Invalid GeoJSON object.');
- }
- latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
- return new L.Polygon(latlngs, vectorOptions);
- case 'MultiLineString':
- latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
- return new L.MultiPolyline(latlngs, vectorOptions);
- case 'MultiPolygon':
- latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng);
- return new L.MultiPolygon(latlngs, vectorOptions);
- case 'GeometryCollection':
- for (i = 0, len = geometry.geometries.length; i < len; i++) {
- layers.push(this.geometryToLayer({
- geometry: geometry.geometries[i],
- type: 'Feature',
- properties: geojson.properties
- }, pointToLayer, coordsToLatLng, vectorOptions));
- }
- return new L.FeatureGroup(layers);
- default:
- throw new Error('Invalid GeoJSON object.');
- }
- },
- coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng
- return new L.LatLng(coords[1], coords[0], coords[2]);
- },
- coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array
- var latlng, i, len,
- latlngs = [];
- for (i = 0, len = coords.length; i < len; i++) {
- latlng = levelsDeep ?
- this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
- (coordsToLatLng || this.coordsToLatLng)(coords[i]);
- latlngs.push(latlng);
- }
- return latlngs;
- },
- latLngToCoords: function (latlng) {
- var coords = [latlng.lng, latlng.lat];
- if (latlng.alt !== undefined) {
- coords.push(latlng.alt);
- }
- return coords;
- },
- latLngsToCoords: function (latLngs) {
- var coords = [];
- for (var i = 0, len = latLngs.length; i < len; i++) {
- coords.push(L.GeoJSON.latLngToCoords(latLngs[i]));
- }
- return coords;
- },
- getFeature: function (layer, newGeometry) {
- return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry);
- },
- asFeature: function (geoJSON) {
- if (geoJSON.type === 'Feature') {
- return geoJSON;
- }
- return {
- type: 'Feature',
- properties: {},
- geometry: geoJSON
- };
- }
- });
- var PointToGeoJSON = {
- toGeoJSON: function () {
- return L.GeoJSON.getFeature(this, {
- type: 'Point',
- coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
- });
- }
- };
- L.Marker.include(PointToGeoJSON);
- L.Circle.include(PointToGeoJSON);
- L.CircleMarker.include(PointToGeoJSON);
- L.Polyline.include({
- toGeoJSON: function () {
- return L.GeoJSON.getFeature(this, {
- type: 'LineString',
- coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs())
- });
- }
- });
- L.Polygon.include({
- toGeoJSON: function () {
- var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())],
- i, len, hole;
- coords[0].push(coords[0][0]);
- if (this._holes) {
- for (i = 0, len = this._holes.length; i < len; i++) {
- hole = L.GeoJSON.latLngsToCoords(this._holes[i]);
- hole.push(hole[0]);
- coords.push(hole);
- }
- }
- return L.GeoJSON.getFeature(this, {
- type: 'Polygon',
- coordinates: coords
- });
- }
- });
- (function () {
- function multiToGeoJSON(type) {
- return function () {
- var coords = [];
- this.eachLayer(function (layer) {
- coords.push(layer.toGeoJSON().geometry.coordinates);
- });
- return L.GeoJSON.getFeature(this, {
- type: type,
- coordinates: coords
- });
- };
- }
- L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')});
- L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')});
- L.LayerGroup.include({
- toGeoJSON: function () {
- var geometry = this.feature && this.feature.geometry,
- jsons = [],
- json;
- if (geometry && geometry.type === 'MultiPoint') {
- return multiToGeoJSON('MultiPoint').call(this);
- }
- var isGeometryCollection = geometry && geometry.type === 'GeometryCollection';
- this.eachLayer(function (layer) {
- if (layer.toGeoJSON) {
- json = layer.toGeoJSON();
- jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
- }
- });
- if (isGeometryCollection) {
- return L.GeoJSON.getFeature(this, {
- geometries: jsons,
- type: 'GeometryCollection'
- });
- }
- return {
- type: 'FeatureCollection',
- features: jsons
- };
- }
- });
- }());
- L.geoJson = function (geojson, options) {
- return new L.GeoJSON(geojson, options);
- };
- /*
- * L.DomEvent contains functions for working with DOM events.
- */
- L.DomEvent = {
- /* inspired by John Resig, Dean Edwards and YUI addEvent implementations */
- addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
- var id = L.stamp(fn),
- key = '_leaflet_' + type + id,
- handler, originalHandler, newType;
- if (obj[key]) { return this; }
- handler = function (e) {
- return fn.call(context || obj, e || L.DomEvent._getEvent());
- };
- if (L.Browser.pointer && type.indexOf('touch') === 0) {
- return this.addPointerListener(obj, type, handler, id);
- }
- if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
- this.addDoubleTapListener(obj, handler, id);
- }
- if ('addEventListener' in obj) {
- if (type === 'mousewheel') {
- obj.addEventListener('DOMMouseScroll', handler, false);
- obj.addEventListener(type, handler, false);
- } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
- originalHandler = handler;
- newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
- handler = function (e) {
- if (!L.DomEvent._checkMouse(obj, e)) { return; }
- return originalHandler(e);
- };
- obj.addEventListener(newType, handler, false);
- } else if (type === 'click' && L.Browser.android) {
- originalHandler = handler;
- handler = function (e) {
- return L.DomEvent._filterClick(e, originalHandler);
- };
- obj.addEventListener(type, handler, false);
- } else {
- obj.addEventListener(type, handler, false);
- }
- } else if ('attachEvent' in obj) {
- obj.attachEvent('on' + type, handler);
- }
- obj[key] = handler;
- return this;
- },
- removeListener: function (obj, type, fn) { // (HTMLElement, String, Function)
- var id = L.stamp(fn),
- key = '_leaflet_' + type + id,
- handler = obj[key];
- if (!handler) { return this; }
- if (L.Browser.pointer && type.indexOf('touch') === 0) {
- this.removePointerListener(obj, type, id);
- } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
- this.removeDoubleTapListener(obj, id);
- } else if ('removeEventListener' in obj) {
- if (type === 'mousewheel') {
- obj.removeEventListener('DOMMouseScroll', handler, false);
- obj.removeEventListener(type, handler, false);
- } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
- obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
- } else {
- obj.removeEventListener(type, handler, false);
- }
- } else if ('detachEvent' in obj) {
- obj.detachEvent('on' + type, handler);
- }
- obj[key] = null;
- return this;
- },
- stopPropagation: function (e) {
- if (e.stopPropagation) {
- e.stopPropagation();
- } else {
- e.cancelBubble = true;
- }
- L.DomEvent._skipped(e);
- return this;
- },
- disableScrollPropagation: function (el) {
- var stop = L.DomEvent.stopPropagation;
- return L.DomEvent
- .on(el, 'mousewheel', stop)
- .on(el, 'MozMousePixelScroll', stop);
- },
- disableClickPropagation: function (el) {
- var stop = L.DomEvent.stopPropagation;
- for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
- L.DomEvent.on(el, L.Draggable.START[i], stop);
- }
- return L.DomEvent
- .on(el, 'click', L.DomEvent._fakeStop)
- .on(el, 'dblclick', stop);
- },
- preventDefault: function (e) {
- if (e.preventDefault) {
- e.preventDefault();
- } else {
- e.returnValue = false;
- }
- return this;
- },
- stop: function (e) {
- return L.DomEvent
- .preventDefault(e)
- .stopPropagation(e);
- },
- getMousePosition: function (e, container) {
- if (!container) {
- return new L.Point(e.clientX, e.clientY);
- }
- var rect = container.getBoundingClientRect();
- return new L.Point(
- e.clientX - rect.left - container.clientLeft,
- e.clientY - rect.top - container.clientTop);
- },
- getWheelDelta: function (e) {
- var delta = 0;
- if (e.wheelDelta) {
- delta = e.wheelDelta / 120;
- }
- if (e.detail) {
- delta = -e.detail / 3;
- }
- return delta;
- },
- _skipEvents: {},
- _fakeStop: function (e) {
- // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
- L.DomEvent._skipEvents[e.type] = true;
- },
- _skipped: function (e) {
- var skipped = this._skipEvents[e.type];
- // reset when checking, as it's only used in map container and propagates outside of the map
- this._skipEvents[e.type] = false;
- return skipped;
- },
- // check if element really left/entered the event target (for mouseenter/mouseleave)
- _checkMouse: function (el, e) {
- var related = e.relatedTarget;
- if (!related) { return true; }
- try {
- while (related && (related !== el)) {
- related = related.parentNode;
- }
- } catch (err) {
- return false;
- }
- return (related !== el);
- },
- _getEvent: function () { // evil magic for IE
- /*jshint noarg:false */
- var e = window.event;
- if (!e) {
- var caller = arguments.callee.caller;
- while (caller) {
- e = caller['arguments'][0];
- if (e && window.Event === e.constructor) {
- break;
- }
- caller = caller.caller;
- }
- }
- return e;
- },
- // this is a horrible workaround for a bug in Android where a single touch triggers two click events
- _filterClick: function (e, handler) {
- var timeStamp = (e.timeStamp || e.originalEvent.timeStamp),
- elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
- // are they closer together than 500ms yet more than 100ms?
- // Android typically triggers them ~300ms apart while multiple listeners
- // on the same event should be triggered far faster;
- // or check if click is simulated on the element, and if it is, reject any non-simulated events
- if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
- L.DomEvent.stop(e);
- return;
- }
- L.DomEvent._lastClick = timeStamp;
- return handler(e);
- }
- };
- L.DomEvent.on = L.DomEvent.addListener;
- L.DomEvent.off = L.DomEvent.removeListener;
- /*
- * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
- */
- L.Draggable = L.Class.extend({
- includes: L.Mixin.Events,
- statics: {
- START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
- END: {
- mousedown: 'mouseup',
- touchstart: 'touchend',
- pointerdown: 'touchend',
- MSPointerDown: 'touchend'
- },
- MOVE: {
- mousedown: 'mousemove',
- touchstart: 'touchmove',
- pointerdown: 'touchmove',
- MSPointerDown: 'touchmove'
- }
- },
- initialize: function (element, dragStartTarget) {
- this._element = element;
- this._dragStartTarget = dragStartTarget || element;
- },
- enable: function () {
- if (this._enabled) { return; }
- for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
- L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
- }
- this._enabled = true;
- },
- disable: function () {
- if (!this._enabled) { return; }
- for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
- L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
- }
- this._enabled = false;
- this._moved = false;
- },
- _onDown: function (e) {
- this._moved = false;
- if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
- L.DomEvent.stopPropagation(e);
- if (L.Draggable._disabled) { return; }
- L.DomUtil.disableImageDrag();
- L.DomUtil.disableTextSelection();
- if (this._moving) { return; }
- var first = e.touches ? e.touches[0] : e;
- this._startPoint = new L.Point(first.clientX, first.clientY);
- this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
- L.DomEvent
- .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
- .on(document, L.Draggable.END[e.type], this._onUp, this);
- },
- _onMove: function (e) {
- if (e.touches && e.touches.length > 1) {
- this._moved = true;
- return;
- }
- var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
- newPoint = new L.Point(first.clientX, first.clientY),
- offset = newPoint.subtract(this._startPoint);
- if (!offset.x && !offset.y) { return; }
- if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; }
- L.DomEvent.preventDefault(e);
- if (!this._moved) {
- this.fire('dragstart');
- this._moved = true;
- this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
- L.DomUtil.addClass(document.body, 'leaflet-dragging');
- this._lastTarget = e.target || e.srcElement;
- L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
- }
- this._newPos = this._startPos.add(offset);
- this._moving = true;
- L.Util.cancelAnimFrame(this._animRequest);
- this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
- },
- _updatePosition: function () {
- this.fire('predrag');
- L.DomUtil.setPosition(this._element, this._newPos);
- this.fire('drag');
- },
- _onUp: function () {
- L.DomUtil.removeClass(document.body, 'leaflet-dragging');
- if (this._lastTarget) {
- L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
- this._lastTarget = null;
- }
- for (var i in L.Draggable.MOVE) {
- L.DomEvent
- .off(document, L.Draggable.MOVE[i], this._onMove)
- .off(document, L.Draggable.END[i], this._onUp);
- }
- L.DomUtil.enableImageDrag();
- L.DomUtil.enableTextSelection();
- if (this._moved && this._moving) {
- // ensure drag is not fired after dragend
- L.Util.cancelAnimFrame(this._animRequest);
- this.fire('dragend', {
- distance: this._newPos.distanceTo(this._startPos)
- });
- }
- this._moving = false;
- }
- });
- /*
- L.Handler is a base class for handler classes that are used internally to inject
- interaction features like dragging to classes like Map and Marker.
- */
- L.Handler = L.Class.extend({
- initialize: function (map) {
- this._map = map;
- },
- enable: function () {
- if (this._enabled) { return; }
- this._enabled = true;
- this.addHooks();
- },
- disable: function () {
- if (!this._enabled) { return; }
- this._enabled = false;
- this.removeHooks();
- },
- enabled: function () {
- return !!this._enabled;
- }
- });
- /*
- * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
- */
- L.Map.mergeOptions({
- dragging: true,
- inertia: !L.Browser.android23,
- inertiaDeceleration: 3400, // px/s^2
- inertiaMaxSpeed: Infinity, // px/s
- inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
- easeLinearity: 0.25,
- // TODO refactor, move to CRS
- worldCopyJump: false
- });
- L.Map.Drag = L.Handler.extend({
- addHooks: function () {
- if (!this._draggable) {
- var map = this._map;
- this._draggable = new L.Draggable(map._mapPane, map._container);
- this._draggable.on({
- 'dragstart': this._onDragStart,
- 'drag': this._onDrag,
- 'dragend': this._onDragEnd
- }, this);
- if (map.options.worldCopyJump) {
- this._draggable.on('predrag', this._onPreDrag, this);
- map.on('viewreset', this._onViewReset, this);
- map.whenReady(this._onViewReset, this);
- }
- }
- this._draggable.enable();
- },
- removeHooks: function () {
- this._draggable.disable();
- },
- moved: function () {
- return this._draggable && this._draggable._moved;
- },
- _onDragStart: function () {
- var map = this._map;
- if (map._panAnim) {
- map._panAnim.stop();
- }
- map
- .fire('movestart')
- .fire('dragstart');
- if (map.options.inertia) {
- this._positions = [];
- this._times = [];
- }
- },
- _onDrag: function () {
- if (this._map.options.inertia) {
- var time = this._lastTime = +allGetServerTime(),
- pos = this._lastPos = this._draggable._newPos;
- this._positions.push(pos);
- this._times.push(time);
- if (time - this._times[0] > 200) {
- this._positions.shift();
- this._times.shift();
- }
- }
- this._map
- .fire('move')
- .fire('drag');
- },
- _onViewReset: function () {
- // TODO fix hardcoded Earth values
- var pxCenter = this._map.getSize()._divideBy(2),
- pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
- this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
- this._worldWidth = this._map.project([0, 180]).x;
- },
- _onPreDrag: function () {
- // TODO refactor to be able to adjust map pane position after zoom
- var worldWidth = this._worldWidth,
- halfWidth = Math.round(worldWidth / 2),
- dx = this._initialWorldOffset,
- x = this._draggable._newPos.x,
- newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
- newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
- newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
- this._draggable._newPos.x = newX;
- },
- _onDragEnd: function (e) {
- var map = this._map,
- options = map.options,
- delay = +allGetServerTime() - this._lastTime,
- noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0];
- map.fire('dragend', e);
- if (noInertia) {
- map.fire('moveend');
- } else {
- var direction = this._lastPos.subtract(this._positions[0]),
- duration = (this._lastTime + delay - this._times[0]) / 1000,
- ease = options.easeLinearity,
- speedVector = direction.multiplyBy(ease / duration),
- speed = speedVector.distanceTo([0, 0]),
- limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
- limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
- decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
- offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
- if (!offset.x || !offset.y) {
- map.fire('moveend');
- } else {
- offset = map._limitOffset(offset, map.options.maxBounds);
- L.Util.requestAnimFrame(function () {
- map.panBy(offset, {
- duration: decelerationDuration,
- easeLinearity: ease,
- noMoveStart: true
- });
- });
- }
- }
- }
- });
- L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
- /*
- * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
- */
- L.Map.mergeOptions({
- doubleClickZoom: true
- });
- L.Map.DoubleClickZoom = L.Handler.extend({
- addHooks: function () {
- this._map.on('dblclick', this._onDoubleClick, this);
- },
- removeHooks: function () {
- this._map.off('dblclick', this._onDoubleClick, this);
- },
- _onDoubleClick: function (e) {
- var map = this._map,
- zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1);
- if (map.options.doubleClickZoom === 'center') {
- map.setZoom(zoom);
- } else {
- map.setZoomAround(e.containerPoint, zoom);
- }
- }
- });
- L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
- /*
- * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
- */
- L.Map.mergeOptions({
- scrollWheelZoom: true
- });
- L.Map.ScrollWheelZoom = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
- L.DomEvent.on(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
- this._delta = 0;
- },
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
- L.DomEvent.off(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
- },
- _onWheelScroll: function (e) {
- var delta = L.DomEvent.getWheelDelta(e);
- this._delta += delta;
- this._lastMousePos = this._map.mouseEventToContainerPoint(e);
- if (!this._startTime) {
- this._startTime = +allGetServerTime();
- }
- var left = Math.max(40 - (+allGetServerTime() - this._startTime), 0);
- clearTimeout(this._timer);
- this._timer = setTimeout(L.bind(this._performZoom, this), left);
- L.DomEvent.preventDefault(e);
- L.DomEvent.stopPropagation(e);
- },
- _performZoom: function () {
- var map = this._map,
- delta = this._delta,
- zoom = map.getZoom();
- delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta);
- delta = Math.max(Math.min(delta, 4), -4);
- delta = map._limitZoom(zoom + delta) - zoom;
- this._delta = 0;
- this._startTime = null;
- if (!delta) { return; }
- if (map.options.scrollWheelZoom === 'center') {
- map.setZoom(zoom + delta);
- } else {
- map.setZoomAround(this._lastMousePos, zoom + delta);
- }
- }
- });
- L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
- /*
- * Extends the event handling code with double tap support for mobile browsers.
- */
- L.extend(L.DomEvent, {
- _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
- _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
- // inspired by Zepto touch code by Thomas Fuchs
- addDoubleTapListener: function (obj, handler, id) {
- var last,
- doubleTap = false,
- delay = 250,
- touch,
- pre = '_leaflet_',
- touchstart = this._touchstart,
- touchend = this._touchend,
- trackedTouches = [];
- function onTouchStart(e) {
- var count;
- if (L.Browser.pointer) {
- trackedTouches.push(e.pointerId);
- count = trackedTouches.length;
- } else {
- count = e.touches.length;
- }
- if (count > 1) {
- return;
- }
- var now = Date.now(),
- delta = now - (last || now);
- touch = e.touches ? e.touches[0] : e;
- doubleTap = (delta > 0 && delta <= delay);
- last = now;
- }
- function onTouchEnd(e) {
- if (L.Browser.pointer) {
- var idx = trackedTouches.indexOf(e.pointerId);
- if (idx === -1) {
- return;
- }
- trackedTouches.splice(idx, 1);
- }
- if (doubleTap) {
- if (L.Browser.pointer) {
- // work around .type being readonly with MSPointer* events
- var newTouch = { },
- prop;
- // jshint forin:false
- for (var i in touch) {
- prop = touch[i];
- if (typeof prop === 'function') {
- newTouch[i] = prop.bind(touch);
- } else {
- newTouch[i] = prop;
- }
- }
- touch = newTouch;
- }
- touch.type = 'dblclick';
- handler(touch);
- last = null;
- }
- }
- obj[pre + touchstart + id] = onTouchStart;
- obj[pre + touchend + id] = onTouchEnd;
- // on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen
- // will not come through to us, so we will lose track of how many touches are ongoing
- var endElement = L.Browser.pointer ? document.documentElement : obj;
- obj.addEventListener(touchstart, onTouchStart, false);
- endElement.addEventListener(touchend, onTouchEnd, false);
- if (L.Browser.pointer) {
- endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false);
- }
- return this;
- },
- removeDoubleTapListener: function (obj, id) {
- var pre = '_leaflet_';
- obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false);
- (L.Browser.pointer ? document.documentElement : obj).removeEventListener(
- this._touchend, obj[pre + this._touchend + id], false);
- if (L.Browser.pointer) {
- document.documentElement.removeEventListener(L.DomEvent.POINTER_CANCEL, obj[pre + this._touchend + id],
- false);
- }
- return this;
- }
- });
- /*
- * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
- */
- L.extend(L.DomEvent, {
- //static
- POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
- POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
- POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
- POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
- _pointers: [],
- _pointerDocumentListener: false,
- // Provides a touch events wrapper for (ms)pointer events.
- // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019
- //ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
- addPointerListener: function (obj, type, handler, id) {
- switch (type) {
- case 'touchstart':
- return this.addPointerListenerStart(obj, type, handler, id);
- case 'touchend':
- return this.addPointerListenerEnd(obj, type, handler, id);
- case 'touchmove':
- return this.addPointerListenerMove(obj, type, handler, id);
- default:
- throw 'Unknown touch event type';
- }
- },
- addPointerListenerStart: function (obj, type, handler, id) {
- var pre = '_leaflet_',
- pointers = this._pointers;
- var cb = function (e) {
- L.DomEvent.preventDefault(e);
- var alreadyInArray = false;
- for (var i = 0; i < pointers.length; i++) {
- if (pointers[i].pointerId === e.pointerId) {
- alreadyInArray = true;
- break;
- }
- }
- if (!alreadyInArray) {
- pointers.push(e);
- }
- e.touches = pointers.slice();
- e.changedTouches = [e];
- handler(e);
- };
- obj[pre + 'touchstart' + id] = cb;
- obj.addEventListener(this.POINTER_DOWN, cb, false);
- // need to also listen for end events to keep the _pointers list accurate
- // this needs to be on the body and never go away
- if (!this._pointerDocumentListener) {
- var internalCb = function (e) {
- for (var i = 0; i < pointers.length; i++) {
- if (pointers[i].pointerId === e.pointerId) {
- pointers.splice(i, 1);
- break;
- }
- }
- };
- //We listen on the documentElement as any drags that end by moving the touch off the screen get fired there
- document.documentElement.addEventListener(this.POINTER_UP, internalCb, false);
- document.documentElement.addEventListener(this.POINTER_CANCEL, internalCb, false);
- this._pointerDocumentListener = true;
- }
- return this;
- },
- addPointerListenerMove: function (obj, type, handler, id) {
- var pre = '_leaflet_',
- touches = this._pointers;
- function cb(e) {
- // don't fire touch moves when mouse isn't down
- if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
- for (var i = 0; i < touches.length; i++) {
- if (touches[i].pointerId === e.pointerId) {
- touches[i] = e;
- break;
- }
- }
- e.touches = touches.slice();
- e.changedTouches = [e];
- handler(e);
- }
- obj[pre + 'touchmove' + id] = cb;
- obj.addEventListener(this.POINTER_MOVE, cb, false);
- return this;
- },
- addPointerListenerEnd: function (obj, type, handler, id) {
- var pre = '_leaflet_',
- touches = this._pointers;
- var cb = function (e) {
- for (var i = 0; i < touches.length; i++) {
- if (touches[i].pointerId === e.pointerId) {
- touches.splice(i, 1);
- break;
- }
- }
- e.touches = touches.slice();
- e.changedTouches = [e];
- handler(e);
- };
- obj[pre + 'touchend' + id] = cb;
- obj.addEventListener(this.POINTER_UP, cb, false);
- obj.addEventListener(this.POINTER_CANCEL, cb, false);
- return this;
- },
- removePointerListener: function (obj, type, id) {
- var pre = '_leaflet_',
- cb = obj[pre + type + id];
- switch (type) {
- case 'touchstart':
- obj.removeEventListener(this.POINTER_DOWN, cb, false);
- break;
- case 'touchmove':
- obj.removeEventListener(this.POINTER_MOVE, cb, false);
- break;
- case 'touchend':
- obj.removeEventListener(this.POINTER_UP, cb, false);
- obj.removeEventListener(this.POINTER_CANCEL, cb, false);
- break;
- }
- return this;
- }
- });
- /*
- * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
- */
- L.Map.mergeOptions({
- touchZoom: L.Browser.touch && !L.Browser.android23,
- bounceAtZoomLimits: true
- });
- L.Map.TouchZoom = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
- },
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
- },
- _onTouchStart: function (e) {
- var map = this._map;
- if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
- var p1 = map.mouseEventToLayerPoint(e.touches[0]),
- p2 = map.mouseEventToLayerPoint(e.touches[1]),
- viewCenter = map._getCenterLayerPoint();
- this._startCenter = p1.add(p2)._divideBy(2);
- this._startDist = p1.distanceTo(p2);
- this._moved = false;
- this._zooming = true;
- this._centerOffset = viewCenter.subtract(this._startCenter);
- if (map._panAnim) {
- map._panAnim.stop();
- }
- L.DomEvent
- .on(document, 'touchmove', this._onTouchMove, this)
- .on(document, 'touchend', this._onTouchEnd, this);
- L.DomEvent.preventDefault(e);
- },
- _onTouchMove: function (e) {
- var map = this._map;
- if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
- var p1 = map.mouseEventToLayerPoint(e.touches[0]),
- p2 = map.mouseEventToLayerPoint(e.touches[1]);
- this._scale = p1.distanceTo(p2) / this._startDist;
- this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter);
- if (this._scale === 1) { return; }
- if (!map.options.bounceAtZoomLimits) {
- if ((map.getZoom() === map.getMinZoom() && this._scale < 1) ||
- (map.getZoom() === map.getMaxZoom() && this._scale > 1)) { return; }
- }
- if (!this._moved) {
- L.DomUtil.addClass(map._mapPane, 'leaflet-touching');
- map
- .fire('movestart')
- .fire('zoomstart');
- this._moved = true;
- }
- L.Util.cancelAnimFrame(this._animRequest);
- this._animRequest = L.Util.requestAnimFrame(
- this._updateOnMove, this, true, this._map._container);
- L.DomEvent.preventDefault(e);
- },
- _updateOnMove: function () {
- var map = this._map,
- origin = this._getScaleOrigin(),
- center = map.layerPointToLatLng(origin),
- zoom = map.getScaleZoom(this._scale);
- map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta, false, true);
- },
- _onTouchEnd: function () {
- if (!this._moved || !this._zooming) {
- this._zooming = false;
- return;
- }
- var map = this._map;
- this._zooming = false;
- L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');
- L.Util.cancelAnimFrame(this._animRequest);
- L.DomEvent
- .off(document, 'touchmove', this._onTouchMove)
- .off(document, 'touchend', this._onTouchEnd);
- var origin = this._getScaleOrigin(),
- center = map.layerPointToLatLng(origin),
- oldZoom = map.getZoom(),
- floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
- roundZoomDelta = (floatZoomDelta > 0 ?
- Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
- zoom = map._limitZoom(oldZoom + roundZoomDelta),
- scale = map.getZoomScale(zoom) / this._scale;
- map._animateZoom(center, zoom, origin, scale);
- },
- _getScaleOrigin: function () {
- var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
- return this._startCenter.add(centerOffset);
- }
- });
- L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
- /*
- * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
- */
- L.Map.mergeOptions({
- tap: true,
- tapTolerance: 15
- });
- L.Map.Tap = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
- },
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
- },
- _onDown: function (e) {
- if (!e.touches) { return; }
- L.DomEvent.preventDefault(e);
- this._fireClick = true;
- // don't simulate click or track longpress if more than 1 touch
- if (e.touches.length > 1) {
- this._fireClick = false;
- clearTimeout(this._holdTimeout);
- return;
- }
- var first = e.touches[0],
- el = first.target;
- this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
- // if touching a link, highlight it
- if (el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.addClass(el, 'leaflet-active');
- }
- // simulate long hold but setting a timeout
- this._holdTimeout = setTimeout(L.bind(function () {
- if (this._isTapValid()) {
- this._fireClick = false;
- this._onUp();
- this._simulateEvent('contextmenu', first);
- }
- }, this), 1000);
- L.DomEvent
- .on(document, 'touchmove', this._onMove, this)
- .on(document, 'touchend', this._onUp, this);
- },
- _onUp: function (e) {
- clearTimeout(this._holdTimeout);
- L.DomEvent
- .off(document, 'touchmove', this._onMove, this)
- .off(document, 'touchend', this._onUp, this);
- if (this._fireClick && e && e.changedTouches) {
- var first = e.changedTouches[0],
- el = first.target;
- if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.removeClass(el, 'leaflet-active');
- }
- // simulate click if the touch didn't move too much
- if (this._isTapValid()) {
- this._simulateEvent('click', first);
- }
- }
- },
- _isTapValid: function () {
- return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
- },
- _onMove: function (e) {
- var first = e.touches[0];
- this._newPos = new L.Point(first.clientX, first.clientY);
- },
- _simulateEvent: function (type, e) {
- var simulatedEvent = document.createEvent('MouseEvents');
- simulatedEvent._simulated = true;
- e.target._simulatedClick = true;
- simulatedEvent.initMouseEvent(
- type, true, true, window, 1,
- e.screenX, e.screenY,
- e.clientX, e.clientY,
- false, false, false, false, 0, null);
- e.target.dispatchEvent(simulatedEvent);
- }
- });
- if (L.Browser.touch && !L.Browser.pointer) {
- L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
- }
- /*
- * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map
- * (zoom to a selected bounding box), enabled by default.
- */
- L.Map.mergeOptions({
- boxZoom: true
- });
- L.Map.BoxZoom = L.Handler.extend({
- initialize: function (map) {
- this._map = map;
- this._container = map._container;
- this._pane = map._panes.overlayPane;
- this._moved = false;
- },
- addHooks: function () {
- L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
- },
- removeHooks: function () {
- L.DomEvent.off(this._container, 'mousedown', this._onMouseDown);
- this._moved = false;
- },
- moved: function () {
- return this._moved;
- },
- _onMouseDown: function (e) {
- this._moved = false;
- if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
- L.DomUtil.disableTextSelection();
- L.DomUtil.disableImageDrag();
- this._startLayerPoint = this._map.mouseEventToLayerPoint(e);
- L.DomEvent
- .on(document, 'mousemove', this._onMouseMove, this)
- .on(document, 'mouseup', this._onMouseUp, this)
- .on(document, 'keydown', this._onKeyDown, this);
- },
- _onMouseMove: function (e) {
- if (!this._moved) {
- this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
- L.DomUtil.setPosition(this._box, this._startLayerPoint);
- //TODO refactor: move cursor to styles
- this._container.style.cursor = 'crosshair';
- this._map.fire('boxzoomstart');
- }
- var startPoint = this._startLayerPoint,
- box = this._box,
- layerPoint = this._map.mouseEventToLayerPoint(e),
- offset = layerPoint.subtract(startPoint),
- newPos = new L.Point(
- Math.min(layerPoint.x, startPoint.x),
- Math.min(layerPoint.y, startPoint.y));
- L.DomUtil.setPosition(box, newPos);
- this._moved = true;
- // TODO refactor: remove hardcoded 4 pixels
- box.style.width = (Math.max(0, Math.abs(offset.x) - 4)) + 'px';
- box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px';
- },
- _finish: function () {
- if (this._moved) {
- this._pane.removeChild(this._box);
- this._container.style.cursor = '';
- }
- L.DomUtil.enableTextSelection();
- L.DomUtil.enableImageDrag();
- L.DomEvent
- .off(document, 'mousemove', this._onMouseMove)
- .off(document, 'mouseup', this._onMouseUp)
- .off(document, 'keydown', this._onKeyDown);
- },
- _onMouseUp: function (e) {
- this._finish();
- var map = this._map,
- layerPoint = map.mouseEventToLayerPoint(e);
- if (this._startLayerPoint.equals(layerPoint)) { return; }
- var bounds = new L.LatLngBounds(
- map.layerPointToLatLng(this._startLayerPoint),
- map.layerPointToLatLng(layerPoint));
- map.fitBounds(bounds);
- map.fire('boxzoomend', {
- boxZoomBounds: bounds
- });
- },
- _onKeyDown: function (e) {
- if (e.keyCode === 27) {
- this._finish();
- }
- }
- });
- L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
- /*
- * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
- */
- L.Map.mergeOptions({
- keyboard: true,
- keyboardPanOffset: 80,
- keyboardZoomOffset: 1
- });
- L.Map.Keyboard = L.Handler.extend({
- keyCodes: {
- left: [37],
- right: [39],
- down: [40],
- up: [38],
- zoomIn: [187, 107, 61, 171],
- zoomOut: [189, 109, 173]
- },
- initialize: function (map) {
- this._map = map;
- this._setPanOffset(map.options.keyboardPanOffset);
- this._setZoomOffset(map.options.keyboardZoomOffset);
- },
- addHooks: function () {
- var container = this._map._container;
- // make the container focusable by tabbing
- if (container.tabIndex === -1) {
- container.tabIndex = '0';
- }
- L.DomEvent
- .on(container, 'focus', this._onFocus, this)
- .on(container, 'blur', this._onBlur, this)
- .on(container, 'mousedown', this._onMouseDown, this);
- this._map
- .on('focus', this._addHooks, this)
- .on('blur', this._removeHooks, this);
- },
- removeHooks: function () {
- this._removeHooks();
- var container = this._map._container;
- L.DomEvent
- .off(container, 'focus', this._onFocus, this)
- .off(container, 'blur', this._onBlur, this)
- .off(container, 'mousedown', this._onMouseDown, this);
- this._map
- .off('focus', this._addHooks, this)
- .off('blur', this._removeHooks, this);
- },
- _onMouseDown: function () {
- if (this._focused) { return; }
- var body = document.body,
- docEl = document.documentElement,
- top = body.scrollTop || docEl.scrollTop,
- left = body.scrollLeft || docEl.scrollLeft;
- this._map._container.focus();
- window.scrollTo(left, top);
- },
- _onFocus: function () {
- this._focused = true;
- this._map.fire('focus');
- },
- _onBlur: function () {
- this._focused = false;
- this._map.fire('blur');
- },
- _setPanOffset: function (pan) {
- var keys = this._panKeys = {},
- codes = this.keyCodes,
- i, len;
- for (i = 0, len = codes.left.length; i < len; i++) {
- keys[codes.left[i]] = [-1 * pan, 0];
- }
- for (i = 0, len = codes.right.length; i < len; i++) {
- keys[codes.right[i]] = [pan, 0];
- }
- for (i = 0, len = codes.down.length; i < len; i++) {
- keys[codes.down[i]] = [0, pan];
- }
- for (i = 0, len = codes.up.length; i < len; i++) {
- keys[codes.up[i]] = [0, -1 * pan];
- }
- },
- _setZoomOffset: function (zoom) {
- var keys = this._zoomKeys = {},
- codes = this.keyCodes,
- i, len;
- for (i = 0, len = codes.zoomIn.length; i < len; i++) {
- keys[codes.zoomIn[i]] = zoom;
- }
- for (i = 0, len = codes.zoomOut.length; i < len; i++) {
- keys[codes.zoomOut[i]] = -zoom;
- }
- },
- _addHooks: function () {
- L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
- },
- _removeHooks: function () {
- L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
- },
- _onKeyDown: function (e) {
- var key = e.keyCode,
- map = this._map;
- if (key in this._panKeys) {
- if (map._panAnim && map._panAnim._inProgress) { return; }
- map.panBy(this._panKeys[key]);
- if (map.options.maxBounds) {
- map.panInsideBounds(map.options.maxBounds);
- }
- } else if (key in this._zoomKeys) {
- map.setZoom(map.getZoom() + this._zoomKeys[key]);
- } else {
- return;
- }
- L.DomEvent.stop(e);
- }
- });
- L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
- /*
- * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
- */
- L.Handler.MarkerDrag = L.Handler.extend({
- initialize: function (marker) {
- this._marker = marker;
- },
- addHooks: function () {
- var icon = this._marker._icon;
- if (!this._draggable) {
- this._draggable = new L.Draggable(icon, icon);
- }
- this._draggable
- .on('dragstart', this._onDragStart, this)
- .on('drag', this._onDrag, this)
- .on('dragend', this._onDragEnd, this);
- this._draggable.enable();
- L.DomUtil.addClass(this._marker._icon, 'leaflet-marker-draggable');
- },
- removeHooks: function () {
- this._draggable
- .off('dragstart', this._onDragStart, this)
- .off('drag', this._onDrag, this)
- .off('dragend', this._onDragEnd, this);
- this._draggable.disable();
- L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
- },
- moved: function () {
- return this._draggable && this._draggable._moved;
- },
- _onDragStart: function () {
- this._marker
- .closePopup()
- .fire('movestart')
- .fire('dragstart');
- },
- _onDrag: function () {
- var marker = this._marker,
- shadow = marker._shadow,
- iconPos = L.DomUtil.getPosition(marker._icon),
- latlng = marker._map.layerPointToLatLng(iconPos);
- // update shadow position
- if (shadow) {
- L.DomUtil.setPosition(shadow, iconPos);
- }
- marker._latlng = latlng;
- marker
- .fire('move', {latlng: latlng})
- .fire('drag');
- },
- _onDragEnd: function (e) {
- this._marker
- .fire('moveend')
- .fire('dragend', e);
- }
- });
- /*
- * L.Control is a base class for implementing map controls. Handles positioning.
- * All other controls extend from this class.
- */
- L.Control = L.Class.extend({
- options: {
- position: 'topright'
- },
- initialize: function (options) {
- L.setOptions(this, options);
- },
- getPosition: function () {
- return this.options.position;
- },
- setPosition: function (position) {
- var map = this._map;
- if (map) {
- map.removeControl(this);
- }
- this.options.position = position;
- if (map) {
- map.addControl(this);
- }
- return this;
- },
- getContainer: function () {
- return this._container;
- },
- addTo: function (map) {
- this._map = map;
- var container = this._container = this.onAdd(map),
- pos = this.getPosition(),
- corner = map._controlCorners[pos];
- L.DomUtil.addClass(container, 'leaflet-control');
- if (pos.indexOf('bottom') !== -1) {
- corner.insertBefore(container, corner.firstChild);
- } else {
- corner.appendChild(container);
- }
- return this;
- },
- removeFrom: function (map) {
- var pos = this.getPosition(),
- corner = map._controlCorners[pos];
- corner.removeChild(this._container);
- this._map = null;
- if (this.onRemove) {
- this.onRemove(map);
- }
- return this;
- },
- _refocusOnMap: function () {
- if (this._map) {
- this._map.getContainer().focus();
- }
- }
- });
- L.control = function (options) {
- return new L.Control(options);
- };
- // adds control-related methods to L.Map
- L.Map.include({
- addControl: function (control) {
- control.addTo(this);
- return this;
- },
- removeControl: function (control) {
- control.removeFrom(this);
- return this;
- },
- _initControlPos: function () {
- var corners = this._controlCorners = {},
- l = 'leaflet-',
- container = this._controlContainer =
- L.DomUtil.create('div', l + 'control-container', this._container);
- function createCorner(vSide, hSide) {
- var className = l + vSide + ' ' + l + hSide;
- corners[vSide + hSide] = L.DomUtil.create('div', className, container);
- }
- createCorner('top', 'left');
- createCorner('top', 'right');
- createCorner('bottom', 'left');
- createCorner('bottom', 'right');
- },
- _clearControlPos: function () {
- this._container.removeChild(this._controlContainer);
- }
- });
- /*
- * L.Control.Zoom is used for the default zoom buttons on the map.
- */
- L.Control.Zoom = L.Control.extend({
- options: {
- position: 'topleft',
- zoomInText: '+',
- zoomInTitle: 'Zoom in',
- zoomOutText: '-',
- zoomOutTitle: 'Zoom out'
- },
- onAdd: function (map) {
- var zoomName = 'leaflet-control-zoom',
- container = L.DomUtil.create('div', zoomName + ' leaflet-bar');
- this._map = map;
- this._zoomInButton = this._createButton(
- this.options.zoomInText, this.options.zoomInTitle,
- zoomName + '-in', container, this._zoomIn, this);
- this._zoomOutButton = this._createButton(
- this.options.zoomOutText, this.options.zoomOutTitle,
- zoomName + '-out', container, this._zoomOut, this);
- this._updateDisabled();
- map.on('zoomend zoomlevelschange', this._updateDisabled, this);
- return container;
- },
- onRemove: function (map) {
- map.off('zoomend zoomlevelschange', this._updateDisabled, this);
- },
- _zoomIn: function (e) {
- this._map.zoomIn(e.shiftKey ? 3 : 1);
- },
- _zoomOut: function (e) {
- this._map.zoomOut(e.shiftKey ? 3 : 1);
- },
- _createButton: function (html, title, className, container, fn, context) {
- var link = L.DomUtil.create('a', className, container);
- link.innerHTML = html;
- link.href = '#';
- link.title = title;
- var stop = L.DomEvent.stopPropagation;
- L.DomEvent
- .on(link, 'click', stop)
- .on(link, 'mousedown', stop)
- .on(link, 'dblclick', stop)
- .on(link, 'click', L.DomEvent.preventDefault)
- .on(link, 'click', fn, context)
- .on(link, 'click', this._refocusOnMap, context);
- return link;
- },
- _updateDisabled: function () {
- var map = this._map,
- className = 'leaflet-disabled';
- L.DomUtil.removeClass(this._zoomInButton, className);
- L.DomUtil.removeClass(this._zoomOutButton, className);
- if (map._zoom === map.getMinZoom()) {
- L.DomUtil.addClass(this._zoomOutButton, className);
- }
- if (map._zoom === map.getMaxZoom()) {
- L.DomUtil.addClass(this._zoomInButton, className);
- }
- }
- });
- L.Map.mergeOptions({
- zoomControl: true
- });
- L.Map.addInitHook(function () {
- if (this.options.zoomControl) {
- this.zoomControl = new L.Control.Zoom();
- this.addControl(this.zoomControl);
- }
- });
- L.control.zoom = function (options) {
- return new L.Control.Zoom(options);
- };
- /*
- * L.Control.Attribution is used for displaying attribution on the map (added by default).
- */
- L.Control.Attribution = L.Control.extend({
- options: {
- position: 'bottomright',
- prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
- },
- initialize: function (options) {
- L.setOptions(this, options);
- this._attributions = {};
- },
- onAdd: function (map) {
- this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
- L.DomEvent.disableClickPropagation(this._container);
- for (var i in map._layers) {
- if (map._layers[i].getAttribution) {
- this.addAttribution(map._layers[i].getAttribution());
- }
- }
-
- map
- .on('layeradd', this._onLayerAdd, this)
- .on('layerremove', this._onLayerRemove, this);
- this._update();
- return this._container;
- },
- onRemove: function (map) {
- map
- .off('layeradd', this._onLayerAdd)
- .off('layerremove', this._onLayerRemove);
- },
- setPrefix: function (prefix) {
- this.options.prefix = prefix;
- this._update();
- return this;
- },
- addAttribution: function (text) {
- if (!text) { return; }
- if (!this._attributions[text]) {
- this._attributions[text] = 0;
- }
- this._attributions[text]++;
- this._update();
- return this;
- },
- removeAttribution: function (text) {
- if (!text) { return; }
- if (this._attributions[text]) {
- this._attributions[text]--;
- this._update();
- }
- return this;
- },
- _update: function () {
- if (!this._map) { return; }
- var attribs = [];
- for (var i in this._attributions) {
- if (this._attributions[i]) {
- attribs.push(i);
- }
- }
- var prefixAndAttribs = [];
- if (this.options.prefix) {
- prefixAndAttribs.push(this.options.prefix);
- }
- if (attribs.length) {
- prefixAndAttribs.push(attribs.join(', '));
- }
- this._container.innerHTML = prefixAndAttribs.join(' | ');
- },
- _onLayerAdd: function (e) {
- if (e.layer.getAttribution) {
- this.addAttribution(e.layer.getAttribution());
- }
- },
- _onLayerRemove: function (e) {
- if (e.layer.getAttribution) {
- this.removeAttribution(e.layer.getAttribution());
- }
- }
- });
- L.Map.mergeOptions({
- attributionControl: true
- });
- L.Map.addInitHook(function () {
- if (this.options.attributionControl) {
- this.attributionControl = (new L.Control.Attribution()).addTo(this);
- }
- });
- L.control.attribution = function (options) {
- return new L.Control.Attribution(options);
- };
- /*
- * L.Control.Scale is used for displaying metric/imperial scale on the map.
- */
- L.Control.Scale = L.Control.extend({
- options: {
- position: 'bottomleft',
- maxWidth: 100,
- metric: true,
- imperial: true,
- updateWhenIdle: false
- },
- onAdd: function (map) {
- this._map = map;
- var className = 'leaflet-control-scale',
- container = L.DomUtil.create('div', className),
- options = this.options;
- this._addScales(options, className, container);
- map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
- map.whenReady(this._update, this);
- return container;
- },
- onRemove: function (map) {
- map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
- },
- _addScales: function (options, className, container) {
- if (options.metric) {
- this._mScale = L.DomUtil.create('div', className + '-line', container);
- }
- if (options.imperial) {
- this._iScale = L.DomUtil.create('div', className + '-line', container);
- }
- },
- _update: function () {
- var bounds = this._map.getBounds(),
- centerLat = bounds.getCenter().lat,
- halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
- dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180,
- size = this._map.getSize(),
- options = this.options,
- maxMeters = 0;
- if (size.x > 0) {
- maxMeters = dist * (options.maxWidth / size.x);
- }
- this._updateScales(options, maxMeters);
- },
- _updateScales: function (options, maxMeters) {
- if (options.metric && maxMeters) {
- this._updateMetric(maxMeters);
- }
- if (options.imperial && maxMeters) {
- this._updateImperial(maxMeters);
- }
- },
- _updateMetric: function (maxMeters) {
- var meters = this._getRoundNum(maxMeters);
- this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
- this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
- },
- _updateImperial: function (maxMeters) {
- var maxFeet = maxMeters * 3.2808399,
- scale = this._iScale,
- maxMiles, miles, feet;
- if (maxFeet > 5280) {
- maxMiles = maxFeet / 5280;
- miles = this._getRoundNum(maxMiles);
- scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
- scale.innerHTML = miles + ' mi';
- } else {
- feet = this._getRoundNum(maxFeet);
- scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
- scale.innerHTML = feet + ' ft';
- }
- },
- _getScaleWidth: function (ratio) {
- return Math.round(this.options.maxWidth * ratio) - 10;
- },
- _getRoundNum: function (num) {
- var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
- d = num / pow10;
- d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1;
- return pow10 * d;
- }
- });
- L.control.scale = function (options) {
- return new L.Control.Scale(options);
- };
- /*
- * L.Control.Layers is a control to allow users to switch between different layers on the map.
- */
- L.Control.Layers = L.Control.extend({
- options: {
- collapsed: true,
- position: 'topright',
- autoZIndex: true
- },
- initialize: function (baseLayers, overlays, options) {
- L.setOptions(this, options);
- this._layers = {};
- this._lastZIndex = 0;
- this._handlingClick = false;
- for (var i in baseLayers) {
- this._addLayer(baseLayers[i], i);
- }
- for (i in overlays) {
- this._addLayer(overlays[i], i, true);
- }
- },
- onAdd: function (map) {
- this._initLayout();
- this._update();
- map
- .on('layeradd', this._onLayerChange, this)
- .on('layerremove', this._onLayerChange, this);
- return this._container;
- },
- onRemove: function (map) {
- map
- .off('layeradd', this._onLayerChange, this)
- .off('layerremove', this._onLayerChange, this);
- },
- addBaseLayer: function (layer, name) {
- this._addLayer(layer, name);
- this._update();
- return this;
- },
- addOverlay: function (layer, name) {
- this._addLayer(layer, name, true);
- this._update();
- return this;
- },
- removeLayer: function (layer) {
- var id = L.stamp(layer);
- delete this._layers[id];
- this._update();
- return this;
- },
- _initLayout: function () {
- var className = 'leaflet-control-layers',
- container = this._container = L.DomUtil.create('div', className);
- //Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released
- container.setAttribute('aria-haspopup', true);
- if (!L.Browser.touch) {
- L.DomEvent
- .disableClickPropagation(container)
- .disableScrollPropagation(container);
- } else {
- L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
- }
- var form = this._form = L.DomUtil.create('form', className + '-list');
- if (this.options.collapsed) {
- if (!L.Browser.android) {
- L.DomEvent
- .on(container, 'mouseover', this._expand, this)
- .on(container, 'mouseout', this._collapse, this);
- }
- var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
- link.href = '#';
- link.title = 'Layers';
- if (L.Browser.touch) {
- L.DomEvent
- .on(link, 'click', L.DomEvent.stop)
- .on(link, 'click', this._expand, this);
- }
- else {
- L.DomEvent.on(link, 'focus', this._expand, this);
- }
- //Work around for Firefox android issue https://github.com/Leaflet/Leaflet/issues/2033
- L.DomEvent.on(form, 'click', function () {
- setTimeout(L.bind(this._onInputClick, this), 0);
- }, this);
- this._map.on('click', this._collapse, this);
- // TODO keyboard accessibility
- } else {
- this._expand();
- }
- this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
- this._separator = L.DomUtil.create('div', className + '-separator', form);
- this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
- container.appendChild(form);
- },
- _addLayer: function (layer, name, overlay) {
- var id = L.stamp(layer);
- this._layers[id] = {
- layer: layer,
- name: name,
- overlay: overlay
- };
- if (this.options.autoZIndex && layer.setZIndex) {
- this._lastZIndex++;
- layer.setZIndex(this._lastZIndex);
- }
- },
- _update: function () {
- if (!this._container) {
- return;
- }
- this._baseLayersList.innerHTML = '';
- this._overlaysList.innerHTML = '';
- var baseLayersPresent = false,
- overlaysPresent = false,
- i, obj;
- for (i in this._layers) {
- obj = this._layers[i];
- this._addItem(obj);
- overlaysPresent = overlaysPresent || obj.overlay;
- baseLayersPresent = baseLayersPresent || !obj.overlay;
- }
- this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
- },
- _onLayerChange: function (e) {
- var obj = this._layers[L.stamp(e.layer)];
- if (!obj) { return; }
- if (!this._handlingClick) {
- this._update();
- }
- var type = obj.overlay ?
- (e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') :
- (e.type === 'layeradd' ? 'baselayerchange' : null);
- if (type) {
- this._map.fire(type, obj);
- }
- },
- // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
- _createRadioElement: function (name, checked) {
- var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
- if (checked) {
- radioHtml += ' checked="checked"';
- }
- radioHtml += '/>';
- var radioFragment = document.createElement('div');
- radioFragment.innerHTML = radioHtml;
- return radioFragment.firstChild;
- },
- _addItem: function (obj) {
- var label = document.createElement('label'),
- input,
- checked = this._map.hasLayer(obj.layer);
- if (obj.overlay) {
- input = document.createElement('input');
- input.type = 'checkbox';
- input.className = 'leaflet-control-layers-selector';
- input.defaultChecked = checked;
- } else {
- input = this._createRadioElement('leaflet-base-layers', checked);
- }
- input.layerId = L.stamp(obj.layer);
- L.DomEvent.on(input, 'click', this._onInputClick, this);
- var name = document.createElement('span');
- name.innerHTML = ' ' + obj.name;
- label.appendChild(input);
- label.appendChild(name);
- var container = obj.overlay ? this._overlaysList : this._baseLayersList;
- container.appendChild(label);
- return label;
- },
- _onInputClick: function () {
- var i, input, obj,
- inputs = this._form.getElementsByTagName('input'),
- inputsLen = inputs.length;
- this._handlingClick = true;
- for (i = 0; i < inputsLen; i++) {
- input = inputs[i];
- obj = this._layers[input.layerId];
- if (input.checked && !this._map.hasLayer(obj.layer)) {
- this._map.addLayer(obj.layer);
- } else if (!input.checked && this._map.hasLayer(obj.layer)) {
- this._map.removeLayer(obj.layer);
- }
- }
- this._handlingClick = false;
- this._refocusOnMap();
- },
- _expand: function () {
- L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
- },
- _collapse: function () {
- this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
- }
- });
- L.control.layers = function (baseLayers, overlays, options) {
- return new L.Control.Layers(baseLayers, overlays, options);
- };
- /*
- * L.PosAnimation is used by Leaflet internally for pan animations.
- */
- L.PosAnimation = L.Class.extend({
- includes: L.Mixin.Events,
- run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
- this.stop();
- this._el = el;
- this._inProgress = true;
- this._newPos = newPos;
- this.fire('start');
- el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) +
- 's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)';
- L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
- L.DomUtil.setPosition(el, newPos);
- // toggle reflow, Chrome flickers for some reason if you don't do this
- L.Util.falseFn(el.offsetWidth);
- // there's no native way to track value updates of transitioned properties, so we imitate this
- this._stepTimer = setInterval(L.bind(this._onStep, this), 50);
- },
- stop: function () {
- if (!this._inProgress) { return; }
- // if we just removed the transition property, the element would jump to its final position,
- // so we need to make it stay at the current position
- L.DomUtil.setPosition(this._el, this._getPos());
- this._onTransitionEnd();
- L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation
- },
- _onStep: function () {
- var stepPos = this._getPos();
- if (!stepPos) {
- this._onTransitionEnd();
- return;
- }
- // jshint camelcase: false
- // make L.DomUtil.getPosition return intermediate position value during animation
- this._el._leaflet_pos = stepPos;
- this.fire('step');
- },
- // you can't easily get intermediate values of properties animated with CSS3 Transitions,
- // we need to parse computed style (in case of transform it returns matrix string)
- _transformRe: /([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/,
- _getPos: function () {
- var left, top, matches,
- el = this._el,
- style = window.getComputedStyle(el);
- if (L.Browser.any3d) {
- matches = style[L.DomUtil.TRANSFORM].match(this._transformRe);
- if (!matches) { return; }
- left = parseFloat(matches[1]);
- top = parseFloat(matches[2]);
- } else {
- left = parseFloat(style.left);
- top = parseFloat(style.top);
- }
- return new L.Point(left, top, true);
- },
- _onTransitionEnd: function () {
- L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
- if (!this._inProgress) { return; }
- this._inProgress = false;
- this._el.style[L.DomUtil.TRANSITION] = '';
- // jshint camelcase: false
- // make sure L.DomUtil.getPosition returns the final position value after animation
- this._el._leaflet_pos = this._newPos;
- clearInterval(this._stepTimer);
- this.fire('step').fire('end');
- }
- });
- /*
- * Extends L.Map to handle panning animations.
- */
- L.Map.include({
- setView: function (center, zoom, options) {
- zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
- center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
- options = options || {};
- if (this._panAnim) {
- this._panAnim.stop();
- }
- if (this._loaded && !options.reset && options !== true) {
- if (options.animate !== undefined) {
- options.zoom = L.extend({animate: options.animate}, options.zoom);
- options.pan = L.extend({animate: options.animate}, options.pan);
- }
- // try animating pan or zoom
- var animated = (this._zoom !== zoom) ?
- this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
- this._tryAnimatedPan(center, options.pan);
- if (animated) {
- // prevent resize handler call, the view will refresh after animation anyway
- clearTimeout(this._sizeTimer);
- return this;
- }
- }
- // animation didn't start, just reset the map view
- this._resetView(center, zoom);
- return this;
- },
- panBy: function (offset, options) {
- offset = L.point(offset).round();
- options = options || {};
- if (!offset.x && !offset.y) {
- return this;
- }
- if (!this._panAnim) {
- this._panAnim = new L.PosAnimation();
- this._panAnim.on({
- 'step': this._onPanTransitionStep,
- 'end': this._onPanTransitionEnd
- }, this);
- }
- // don't fire movestart if animating inertia
- if (!options.noMoveStart) {
- this.fire('movestart');
- }
- // animate pan unless animate: false specified
- if (options.animate !== false) {
- L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
- var newPos = this._getMapPanePos().subtract(offset);
- this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
- } else {
- this._rawPanBy(offset);
- this.fire('move').fire('moveend');
- }
- return this;
- },
- _onPanTransitionStep: function () {
- this.fire('move');
- },
- _onPanTransitionEnd: function () {
- L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
- this.fire('moveend');
- },
- _tryAnimatedPan: function (center, options) {
- // difference between the new and current centers in pixels
- var offset = this._getCenterOffset(center)._floor();
- // don't animate too far unless animate: true specified in options
- if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
- this.panBy(offset, options);
- return true;
- }
- });
- /*
- * L.PosAnimation fallback implementation that powers Leaflet pan animations
- * in browsers that don't support CSS3 Transitions.
- */
- L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
- run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
- this.stop();
- this._el = el;
- this._inProgress = true;
- this._duration = duration || 0.25;
- this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
- this._startPos = L.DomUtil.getPosition(el);
- this._offset = newPos.subtract(this._startPos);
- this._startTime = +allGetServerTime();
- this.fire('start');
- this._animate();
- },
- stop: function () {
- if (!this._inProgress) { return; }
- this._step();
- this._complete();
- },
- _animate: function () {
- // animation loop
- this._animId = L.Util.requestAnimFrame(this._animate, this);
- this._step();
- },
- _step: function () {
- var elapsed = (+allGetServerTime()) - this._startTime,
- duration = this._duration * 1000;
- if (elapsed < duration) {
- this._runFrame(this._easeOut(elapsed / duration));
- } else {
- this._runFrame(1);
- this._complete();
- }
- },
- _runFrame: function (progress) {
- var pos = this._startPos.add(this._offset.multiplyBy(progress));
- L.DomUtil.setPosition(this._el, pos);
- this.fire('step');
- },
- _complete: function () {
- L.Util.cancelAnimFrame(this._animId);
- this._inProgress = false;
- this.fire('end');
- },
- _easeOut: function (t) {
- return 1 - Math.pow(1 - t, this._easeOutPower);
- }
- });
- /*
- * Extends L.Map to handle zoom animations.
- */
- L.Map.mergeOptions({
- zoomAnimation: true,
- zoomAnimationThreshold: 4
- });
- if (L.DomUtil.TRANSITION) {
- L.Map.addInitHook(function () {
- // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
- this._zoomAnimated = this.options.zoomAnimation && L.DomUtil.TRANSITION &&
- L.Browser.any3d && !L.Browser.android23 && !L.Browser.mobileOpera;
- // zoom transitions run with the same duration for all layers, so if one of transitionend events
- // happens after starting zoom animation (propagating to the map pane), we know that it ended globally
- if (this._zoomAnimated) {
- L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
- }
- });
- }
- L.Map.include(!L.DomUtil.TRANSITION ? {} : {
- _catchTransitionEnd: function (e) {
- if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
- this._onZoomTransitionEnd();
- }
- },
- _nothingToAnimate: function () {
- return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
- },
- _tryAnimatedZoom: function (center, zoom, options) {
- if (this._animatingZoom) { return true; }
- options = options || {};
- // don't animate if disabled, not supported or zoom difference is too large
- if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
- Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
- // offset is the pixel coords of the zoom origin relative to the current center
- var scale = this.getZoomScale(zoom),
- offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale),
- origin = this._getCenterLayerPoint()._add(offset);
- // don't animate if the zoom origin isn't within one screen from the current center, unless forced
- if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
- this
- .fire('movestart')
- .fire('zoomstart');
- this._animateZoom(center, zoom, origin, scale, null, true);
- return true;
- },
- _animateZoom: function (center, zoom, origin, scale, delta, backwards, forTouchZoom) {
- if (!forTouchZoom) {
- this._animatingZoom = true;
- }
- // put transform transition on all layers with leaflet-zoom-animated class
- L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
- // remember what center/zoom to set after animation
- this._animateToCenter = center;
- this._animateToZoom = zoom;
- // disable any dragging during animation
- if (L.Draggable) {
- L.Draggable._disabled = true;
- }
- L.Util.requestAnimFrame(function () {
- this.fire('zoomanim', {
- center: center,
- zoom: zoom,
- origin: origin,
- scale: scale,
- delta: delta,
- backwards: backwards
- });
- }, this);
- },
- _onZoomTransitionEnd: function () {
- this._animatingZoom = false;
- L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
- this._resetView(this._animateToCenter, this._animateToZoom, true, true);
- if (L.Draggable) {
- L.Draggable._disabled = false;
- }
- }
- });
- /*
- Zoom animation logic for L.TileLayer.
- */
- L.TileLayer.include({
- _animateZoom: function (e) {
- if (!this._animating) {
- this._animating = true;
- this._prepareBgBuffer();
- }
- var bg = this._bgBuffer,
- transform = L.DomUtil.TRANSFORM,
- initialTransform = e.delta ? L.DomUtil.getTranslateString(e.delta) : bg.style[transform],
- scaleStr = L.DomUtil.getScaleString(e.scale, e.origin);
- bg.style[transform] = e.backwards ?
- scaleStr + ' ' + initialTransform :
- initialTransform + ' ' + scaleStr;
- },
- _endZoomAnim: function () {
- var front = this._tileContainer,
- bg = this._bgBuffer;
- front.style.visibility = '';
- front.parentNode.appendChild(front); // Bring to fore
- // force reflow
- L.Util.falseFn(bg.offsetWidth);
- this._animating = false;
- },
- _clearBgBuffer: function () {
- var map = this._map;
- if (map && !map._animatingZoom && !map.touchZoom._zooming) {
- this._bgBuffer.innerHTML = '';
- this._bgBuffer.style[L.DomUtil.TRANSFORM] = '';
- }
- },
- _prepareBgBuffer: function () {
- var front = this._tileContainer,
- bg = this._bgBuffer;
- // if foreground layer doesn't have many tiles but bg layer does,
- // keep the existing bg layer and just zoom it some more
- var bgLoaded = this._getLoadedTilesPercentage(bg),
- frontLoaded = this._getLoadedTilesPercentage(front);
- if (bg && bgLoaded > 0.5 && frontLoaded < 0.5) {
- front.style.visibility = 'hidden';
- this._stopLoadingImages(front);
- return;
- }
- // prepare the buffer to become the front tile pane
- bg.style.visibility = 'hidden';
- bg.style[L.DomUtil.TRANSFORM] = '';
- // switch out the current layer to be the new bg layer (and vice-versa)
- this._tileContainer = bg;
- bg = this._bgBuffer = front;
- this._stopLoadingImages(bg);
- //prevent bg buffer from clearing right after zoom
- clearTimeout(this._clearBgBufferTimer);
- },
- _getLoadedTilesPercentage: function (container) {
- var tiles = container.getElementsByTagName('img'),
- i, len, count = 0;
- for (i = 0, len = tiles.length; i < len; i++) {
- if (tiles[i].complete) {
- count++;
- }
- }
- return count / len;
- },
- // stops loading all tiles in the background layer
- _stopLoadingImages: function (container) {
- var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
- i, len, tile;
- for (i = 0, len = tiles.length; i < len; i++) {
- tile = tiles[i];
- if (!tile.complete) {
- tile.onload = L.Util.falseFn;
- tile.onerror = L.Util.falseFn;
- tile.src = L.Util.emptyImageUrl;
- tile.parentNode.removeChild(tile);
- }
- }
- }
- });
- /*
- * Provides L.Map with convenient shortcuts for using browser geolocation features.
- */
- L.Map.include({
- _defaultLocateOptions: {
- watch: false,
- setView: false,
- maxZoom: Infinity,
- timeout: 10000,
- maximumAge: 0,
- enableHighAccuracy: false
- },
- locate: function (/*Object*/ options) {
- options = this._locateOptions = L.extend(this._defaultLocateOptions, options);
- if (!navigator.geolocation) {
- this._handleGeolocationError({
- code: 0,
- message: 'Geolocation not supported.'
- });
- return this;
- }
- var onResponse = L.bind(this._handleGeolocationResponse, this),
- onError = L.bind(this._handleGeolocationError, this);
- if (options.watch) {
- this._locationWatchId =
- navigator.geolocation.watchPosition(onResponse, onError, options);
- } else {
- navigator.geolocation.getCurrentPosition(onResponse, onError, options);
- }
- return this;
- },
- stopLocate: function () {
- if (navigator.geolocation) {
- navigator.geolocation.clearWatch(this._locationWatchId);
- }
- if (this._locateOptions) {
- this._locateOptions.setView = false;
- }
- return this;
- },
- _handleGeolocationError: function (error) {
- var c = error.code,
- message = error.message ||
- (c === 1 ? 'permission denied' :
- (c === 2 ? 'position unavailable' : 'timeout'));
- if (this._locateOptions.setView && !this._loaded) {
- this.fitWorld();
- }
- this.fire('locationerror', {
- code: c,
- message: 'Geolocation error: ' + message + '.'
- });
- },
- _handleGeolocationResponse: function (pos) {
- var lat = pos.coords.latitude,
- lng = pos.coords.longitude,
- latlng = new L.LatLng(lat, lng),
- latAccuracy = 180 * pos.coords.accuracy / 40075017,
- lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat),
- bounds = L.latLngBounds(
- [lat - latAccuracy, lng - lngAccuracy],
- [lat + latAccuracy, lng + lngAccuracy]),
- options = this._locateOptions;
- if (options.setView) {
- var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
- this.setView(latlng, zoom);
- }
- var data = {
- latlng: latlng,
- bounds: bounds,
- timestamp: pos.timestamp
- };
- for (var i in pos.coords) {
- if (typeof pos.coords[i] === 'number') {
- data[i] = pos.coords[i];
- }
- }
- this.fire('locationfound', data);
- }
- });
- }(window, document));
|