GZ/nwyj/.svn/pristine/6b/6b65151e2555b7b6efc63b534e41481ce11646dd.svn-base

if (!dojo._hasResource["dijit._editor.range"]) { // _hasResource checks added
													// by build. Do not use
													// _hasResource directly in
													// your code.
	dojo._hasResource["dijit._editor.range"] = true;
	dojo.provide("dijit._editor.range");

	dijit.range = {};

	dijit.range.getIndex = function(/* DomNode */node, /* DomNode */parent) {
		// dojo.profile.start("dijit.range.getIndex");
		var ret = [], retR = [];
		var stop = parent;
		var onode = node;

		while (node != stop) {
			var i = 0;
			var pnode = node.parentNode, n;
			while (n = pnode.childNodes[i++]) {
				if (n === node) {
					--i;
					break;
				}
			}
			if (i >= pnode.childNodes.length) {
				dojo
						.debug("Error finding index of a node in dijit.range.getIndex");
			}
			ret.unshift(i);
			retR.unshift(i - pnode.childNodes.length);
			node = pnode;
		}

		// normalized() can not be called so often to prevent
		// invalidating selection/range, so we have to detect
		// here that any text nodes in a row
		if (ret.length > 0 && onode.nodeType == 3) {
			var n = onode.previousSibling;
			while (n && n.nodeType == 3) {
				ret[ret.length - 1]--;
				n = n.previousSibling;
			}
			n = onode.nextSibling;
			while (n && n.nodeType == 3) {
				retR[retR.length - 1]++;
				n = n.nextSibling;
			}
		}
		// dojo.profile.end("dijit.range.getIndex");
		return {
			o : ret,
			r : retR
		};
	}

	dijit.range.getNode = function(/* Array */index, /* DomNode */parent) {
		if (!dojo.isArray(index) || index.length == 0) {
			return parent;
		}
		var node = parent;
		// if(!node)debugger
		dojo.every(index, function(i) {
					if (i >= 0 && i < node.childNodes.length) {
						node = node.childNodes[i];
					} else {
						node = null;
						console.debug('Error: can not find node with index',
								index, 'under parent node', parent);
						return false; // terminate dojo.every
					}
					return true; // carry on the every loop
				});

		return node;
	}

	dijit.range.getCommonAncestor = function(n1, n2, root) {
		var getAncestors = function(n, root) {
			var as = [];
			while (n) {
				as.unshift(n);
				if (n != root && n.tagName != 'BODY') {
					n = n.parentNode;
				} else {
					break;
				}
			}
			return as;
		};
		var n1as = getAncestors(n1, root);
		var n2as = getAncestors(n2, root);

		var m = Math.min(n1as.length, n2as.length);
		var com = n1as[0]; // at least, one element should be in the array: the
							// root (BODY by default)
		for (var i = 1; i < m; i++) {
			if (n1as[i] === n2as[i]) {
				com = n1as[i]
			} else {
				break;
			}
		}
		return com;
	}

	dijit.range.getAncestor = function(/* DomNode */node, /* RegEx? */regex, /* DomNode? */
			root) {
		root = root || node.ownerDocument.body;
		while (node && node !== root) {
			var name = node.nodeName.toUpperCase();
			if (regex.test(name)) {
				return node;
			}

			node = node.parentNode;
		}
		return null;
	}

	dijit.range.BlockTagNames = /^(?:P|DIV|H1|H2|H3|H4|H5|H6|ADDRESS|PRE|OL|UL|LI|DT|DE)$/;
	dijit.range.getBlockAncestor = function(/* DomNode */node, /* RegEx? */regex, /* DomNode? */
			root) {
		root = root || node.ownerDocument.body;
		regex = regex || dijit.range.BlockTagNames;
		var block = null, blockContainer;
		while (node && node !== root) {
			var name = node.nodeName.toUpperCase();
			if (!block && regex.test(name)) {
				block = node;
			}
			if (!blockContainer && (/^(?:BODY|TD|TH|CAPTION)$/).test(name)) {
				blockContainer = node;
			}

			node = node.parentNode;
		}
		return {
			blockNode : block,
			blockContainer : blockContainer || node.ownerDocument.body
		};
	}

	dijit.range.atBeginningOfContainer = function(/* DomNode */container, /* DomNode */
			node, /* Int */offset) {
		var atBeginning = false;
		var offsetAtBeginning = (offset == 0);
		if (!offsetAtBeginning && node.nodeType == 3) { // if this is a text
														// node, check whether
														// the left part is all
														// space
			if (dojo.trim(node.nodeValue.substr(0, offset)) == 0) {
				offsetAtBeginning = true;
			}
		}
		if (offsetAtBeginning) {
			var cnode = node;
			atBeginning = true;
			while (cnode && cnode !== container) {
				if (cnode.previousSibling) {
					atBeginning = false;
					break;
				}
				cnode = cnode.parentNode;
			}
		}
		return atBeginning;
	}

	dijit.range.atEndOfContainer = function(/* DomNode */container, /* DomNode */
			node, /* Int */offset) {
		var atEnd = false;
		var offsetAtEnd = (offset == (node.length || node.childNodes.length));
		if (!offsetAtEnd && node.nodeType == 3) { // if this is a text node,
													// check whether the right
													// part is all space
			if (dojo.trim(node.nodeValue.substr(offset)) == 0) {
				offsetAtEnd = true;
			}
		}
		if (offsetAtEnd) {
			var cnode = node;
			atEnd = true;
			while (cnode && cnode !== container) {
				if (cnode.nextSibling) {
					atEnd = false;
					break;
				}
				cnode = cnode.parentNode;
			}
		}
		return atEnd;
	}

	dijit.range.adjacentNoneTextNode = function(startnode, next) {
		var node = startnode;
		var len = (0 - startnode.length) || 0;
		var prop = next ? 'nextSibling' : 'previousSibling';
		while (node) {
			if (node.nodeType != 3) {
				break;
			}
			len += node.length
			node = node[prop];
		}
		return [node, len];
	}

	dijit.range._w3c = Boolean(window['getSelection']);
	dijit.range.create = function() {
		if (dijit.range._w3c) {
			return document.createRange();
		} else {// IE
			return new dijit.range.W3CRange;
		}
	}

	dijit.range.getSelection = function(win, /* Boolean? */ignoreUpdate) {
		if (dijit.range._w3c) {
			return win.getSelection();
		} else {// IE
			var id = win.__W3CRange;
			if (!id || !dijit.range.ie.cachedSelection[id]) {
				var s = new dijit.range.ie.selection(win);
				// use win as the key in an object is not reliable, which
				// can leads to quite odd behaviors. thus we generate a
				// string and use it as a key in the cache
				id = (new Date).getTime();
				while (id in dijit.range.ie.cachedSelection) {
					id = id + 1;
				}
				id = String(id);
				dijit.range.ie.cachedSelection[id] = s;
			} else {
				var s = dijit.range.ie.cachedSelection[id];
			}
			if (!ignoreUpdate) {
				s._getCurrentSelection();
			}
			return s;
		}
	}

	if (!dijit.range._w3c) {
		dijit.range.ie = {
			cachedSelection : {},
			selection : function(win) {
				this._ranges = [];
				this.addRange = function(r, /* boolean */internal) {
					this._ranges.push(r);
					if (!internal) {
						r._select();
					}
					this.rangeCount = this._ranges.length;
				};
				this.removeAllRanges = function() {
					// don't detach, the range may be used later
					// for(var i=0;i<this._ranges.length;i++){
					// this._ranges[i].detach();
					// }
					this._ranges = [];
					this.rangeCount = 0;
				};
				var _initCurrentRange = function() {
					var r = win.document.selection.createRange();
					var type = win.document.selection.type.toUpperCase();
					if (type == "CONTROL") {
						// TODO: multiple range selection(?)
						return new dijit.range.W3CRange(dijit.range.ie
								.decomposeControlRange(r));
					} else {
						return new dijit.range.W3CRange(dijit.range.ie
								.decomposeTextRange(r));
					}
				};
				this.getRangeAt = function(i) {
					return this._ranges[i];
				};
				this._getCurrentSelection = function() {
					this.removeAllRanges();
					var r = _initCurrentRange();
					if (r) {
						this.addRange(r, true);
					}
				};
			},
			decomposeControlRange : function(range) {
				var firstnode = range.item(0), lastnode = range
						.item(range.length - 1)
				var startContainer = firstnode.parentNode, endContainer = lastnode.parentNode;
				var startOffset = dijit.range.getIndex(firstnode,
						startContainer).o;
				var endOffset = dijit.range.getIndex(lastnode, endContainer).o
						+ 1;
				return [[startContainer, startOffset],
						[endContainer, endOffset]];
			},
			getEndPoint : function(range, end) {
				var atmrange = range.duplicate();
				atmrange.collapse(!end);
				var cmpstr = 'EndTo' + (end ? 'End' : 'Start');
				var parentNode = atmrange.parentElement();

				var startnode, startOffset, lastNode;
				if (parentNode.childNodes.length > 0) {
					dojo.every(parentNode.childNodes, function(node, i) {
								var calOffset;
								if (node.nodeType != 3) {
									atmrange.moveToElementText(node);

									if (atmrange
											.compareEndPoints(cmpstr, range) > 0) {
										startnode = node.previousSibling;
										if (lastNode && lastNode.nodeType == 3) {
											// where share we put the start? in
											// the text node or after?
											startnode = lastNode;
											calOffset = true;
										} else {
											startnode = parentNode;
											startOffset = i;
											return false;
										}
									} else {
										if (i == parentNode.childNodes.length
												- 1) {
											startnode = parentNode;
											startOffset = parentNode.childNodes.length;
											return false;
										}
									}
								} else {
									if (i == parentNode.childNodes.length - 1) {// at
																				// the
																				// end
																				// of
																				// this
																				// node
										startnode = node;
										calOffset = true;
									}
								}
								// try{
								if (calOffset && startnode) {
									var prevnode = dijit.range
											.adjacentNoneTextNode(startnode)[0];
									if (prevnode) {
										startnode = prevnode.nextSibling;
									} else {
										startnode = parentNode.firstChild; // firstChild
																			// must
																			// be a
																			// text
																			// node
									}
									var prevnodeobj = dijit.range
											.adjacentNoneTextNode(startnode);
									prevnode = prevnodeobj[0];
									var lenoffset = prevnodeobj[1];
									if (prevnode) {
										atmrange.moveToElementText(prevnode);
										atmrange.collapse(false);
									} else {
										atmrange.moveToElementText(parentNode);
									}
									atmrange.setEndPoint(cmpstr, range);
									startOffset = atmrange.text.length
											- lenoffset;

									return false;
								}
								// }catch(e){ debugger }
								lastNode = node;
								return true;
							});
				} else {
					startnode = parentNode;
					startOffset = 0;
				}

				// if at the end of startnode and we are dealing with start
				// container, then
				// move the startnode to nextSibling if it is a text node
				// TODO: do this for end container?
				if (!end && startnode.nodeType != 3
						&& startOffset == startnode.childNodes.length) {
					if (startnode.nextSibling
							&& startnode.nextSibling.nodeType == 3) {
						startnode = startnode.nextSibling;
						startOffset = 0;
					}
				}
				return [startnode, startOffset];
			},
			setEndPoint : function(range, container, offset) {
				// text node
				var atmrange = range.duplicate();
				if (container.nodeType != 3) { // normal node
					atmrange.moveToElementText(container);
					atmrange.collapse(true);
					if (offset == container.childNodes.length) {
						if (offset > 0) {
							// a simple atmrange.collapse(false); won't work
							// here:
							// although moveToElementText(node) is supposed to
							// encompass the content of the node,
							// but when collapse to end, it is in fact after the
							// ending tag of node (collapse to start
							// is after the begining tag of node as expected)
							var node = container.lastChild;
							var len = 0;
							while (node && node.nodeType == 3) {
								len += node.length;
								container = node; // pass through
								node = node.previousSibling;
							}
							if (node) {
								atmrange.moveToElementText(node);
							}
							atmrange.collapse(false);
							offset = len; // pass through
						} else { // no childNodes
							atmrange.moveToElementText(container);
							atmrange.collapse(true);
						}
					} else {
						if (offset > 0) {
							var node = container.childNodes[offset - 1];
							if (node.nodeType == 3) {
								container = node;
								offset = node.length;
								// pass through
							} else {
								atmrange.moveToElementText(node);
								atmrange.collapse(false);
							}
						}
					}
				}
				if (container.nodeType == 3) {
					var prevnodeobj = dijit.range
							.adjacentNoneTextNode(container);
					var prevnode = prevnodeobj[0], len = prevnodeobj[1];
					if (prevnode) {
						atmrange.moveToElementText(prevnode);
						atmrange.collapse(false);
						// if contentEditable is not inherit, the above collapse
						// won't make the end point
						// in the correctly position: it always has a -1 offset,
						// so compensate it
						if (prevnode.contentEditable != 'inherit') {
							len++;
						}
					} else {
						atmrange.moveToElementText(container.parentNode);
						atmrange.collapse(true);
					}

					offset += len;
					if (offset > 0) {
						if (atmrange.moveEnd('character', offset) != offset) {
							alert('Error when moving!');
						}
						atmrange.collapse(false);
					}
				}

				return atmrange;
			},
			decomposeTextRange : function(range) {
				var tmpary = dijit.range.ie.getEndPoint(range);
				var startContainter = tmpary[0], startOffset = tmpary[1];
				var endContainter = tmpary[0], endOffset = tmpary[1];

				if (range.htmlText.length) {
					if (range.htmlText == range.text) { // in the same text node
						endOffset = startOffset + range.text.length;
					} else {
						tmpary = dijit.range.ie.getEndPoint(range, true);
						endContainter = tmpary[0], endOffset = tmpary[1];
					}
				}
				return [[startContainter, startOffset],
						[endContainter, endOffset], range.parentElement()];
			},
			setRange : function(range, startContainter, startOffset,
					endContainter, endOffset, check) {
				var startrange = dijit.range.ie.setEndPoint(range,
						startContainter, startOffset);
				range.setEndPoint('StartToStart', startrange);
				if (!this.collapsed) {
					var endrange = dijit.range.ie.setEndPoint(range,
							endContainter, endOffset);
					range.setEndPoint('EndToEnd', endrange);
				}

				return range;
			}
		}

		dojo.declare("dijit.range.W3CRange", null, {
			constructor : function() {
				if (arguments.length > 0) {
					this.setStart(arguments[0][0][0], arguments[0][0][1]);
					this.setEnd(arguments[0][1][0], arguments[0][1][1],
							arguments[0][2]);
				} else {
					this.commonAncestorContainer = null;
					this.startContainer = null;
					this.startOffset = 0;
					this.endContainer = null;
					this.endOffset = 0;
					this.collapsed = true;
				}
			},
			_simpleSetEndPoint : function(node, range, end) {
				var r = (this._body || node.ownerDocument.body)
						.createTextRange();
				if (node.nodeType != 1) {
					r.moveToElementText(node.parentNode);
				} else {
					r.moveToElementText(node);
				}
				r.collapse(true);
				range.setEndPoint(end ? 'EndToEnd' : 'StartToStart', r);
			},
			_updateInternal : function(__internal_common) {
				if (this.startContainer !== this.endContainer) {
					if (!__internal_common) {
						var r = (this._body || this.startContainer.ownerDocument.body)
								.createTextRange();
						this._simpleSetEndPoint(this.startContainer, r);
						this._simpleSetEndPoint(this.endContainer, r, true);
						__internal_common = r.parentElement();
					}
					this.commonAncestorContainer = dijit.range
							.getCommonAncestor(this.startContainer,
									this.endContainer, __internal_common);
				} else {
					this.commonAncestorContainer = this.startContainer;
				}
				this.collapsed = (this.startContainer === this.endContainer)
						&& (this.startOffset == this.endOffset);
			},
			setStart : function(node, offset, __internal_common) {
				if (this.startContainer === node && this.startOffset == offset) {
					return;
				}
				delete this._cachedBookmark;

				this.startContainer = node;
				this.startOffset = offset;
				if (!this.endContainer) {
					this.setEnd(node, offset, __internal_common);
				} else {
					this._updateInternal(__internal_common);
				}
			},
			setEnd : function(node, offset, __internal_common) {
				if (this.endContainer === node && this.endOffset == offset) {
					return;
				}
				delete this._cachedBookmark;

				this.endContainer = node;
				this.endOffset = offset;
				if (!this.startContainer) {
					this.setStart(node, offset, __internal_common);
				} else {
					this._updateInternal(__internal_common);
				}
			},
			setStartAfter : function(node, offset) {
				this._setPoint('setStart', node, offset, 1);
			},
			setStartBefore : function(node, offset) {
				this._setPoint('setStart', node, offset, 0);
			},
			setEndAfter : function(node, offset) {
				this._setPoint('setEnd', node, offset, 1);
			},
			setEndBefore : function(node, offset) {
				this._setPoint('setEnd', node, offset, 0);
			},
			_setPoint : function(what, node, offset, ext) {
				var index = dijit.range.getIndex(node, node.parentNode).o;
				this[what](node.parentNode, index.pop() + ext);
			},
			_getIERange : function() {
				var r = (this._body || this.endContainer.ownerDocument.body)
						.createTextRange();
				dijit.range.ie.setRange(r, this.startContainer,
						this.startOffset, this.endContainer, this.endOffset);
				return r;
			},
			getBookmark : function(body) {
				this._getIERange();
				return this._cachedBookmark;
			},
			_select : function() {
				var r = this._getIERange();
				r.select();
			},
			deleteContents : function() {
				var r = this._getIERange();
				r.pasteHTML('');
				this.endContainer = this.startContainer;
				this.endOffset = this.startOffset;
				this.collapsed = true;
			},
			cloneRange : function() {
				var r = new dijit.range.W3CRange([
						[this.startContainer, this.startOffset],
						[this.endContainer, this.endOffset]]);
				r._body = this._body;
				return r;
			},
			detach : function() {
				this._body = null;
				this.commonAncestorContainer = null;
				this.startContainer = null;
				this.startOffset = 0;
				this.endContainer = null;
				this.endOffset = 0;
				this.collapsed = true;
			}
		});
	} // if(!dijit.range._w3c)

}