GZ/nwyj/WebContent/admin/scripts/dojo/dijit/layout/_LayoutWidget.js

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

	dojo.require("dijit._Widget");
	dojo.require("dijit._Container");

	dojo.declare("dijit.layout._LayoutWidget", [dijit._Widget,
					dijit._Container, dijit._Contained], {
				// summary
				// Mixin for widgets that contain a list of children like
				// SplitContainer.
				// Widgets which mixin this code must define layout() to lay out
				// the children

				isLayoutContainer : true,

				postCreate : function() {
					dojo.addClass(this.domNode, "dijitContainer");
				},

				startup : function() {
					// summary:
					// Called after all the widgets have been instantiated and
					// their
					// dom nodes have been inserted somewhere under
					// document.body.
					//
					// Widgets should override this method to do any
					// initialization
					// dependent on other widgets existing, and then call
					// this superclass method to finish things off.
					//
					// startup() in subclasses shouldn't do anything
					// size related because the size of the widget hasn't been
					// set yet.

					if (this._started) {
						return;
					}
					this._started = true;

					if (this.getChildren) {
						dojo.forEach(this.getChildren(), function(child) {
									child.startup();
								});
					}

					// If I am a top level widget
					if (!this.getParent || !this.getParent()) {
						// Do recursive sizing and layout of all my descendants
						// (passing in no argument to resize means that it has
						// to glean the size itself)
						this.resize();

						// since my parent isn't a layout container, and my
						// style is width=height=100% (or something similar),
						// then I need to watch when the window resizes, and
						// size myself accordingly
						// (passing in no argument to resize means that it has
						// to glean the size itself)
						this.connect(window, 'onresize', function() {
									this.resize();
								});
					}
				},

				resize : function(args) {
					// summary:
					// Explicitly set this widget's size (in pixels),
					// and then call layout() to resize contents (and maybe
					// adjust child widgets)
					//	
					// args: Object?
					// {w: int, h: int, l: int, t: int}

					var node = this.domNode;

					// set margin box size, unless it wasn't specified, in which
					// case use current size
					if (args) {
						dojo.marginBox(node, args);

						// set offset of the node
						if (args.t) {
							node.style.top = args.t + "px";
						}
						if (args.l) {
							node.style.left = args.l + "px";
						}
					}
					// If either height or width wasn't specified by the user,
					// then query node for it.
					// But note that setting the margin box and then immediately
					// querying dimensions may return
					// inaccurate results, so try not to depend on it.
					var mb = dojo.mixin(dojo.marginBox(node), args || {});

					// Save the size of my content box.
					this._contentBox = dijit.layout.marginBox2contentBox(node,
							mb);

					// Callback for widget to adjust size of it's children
					this.layout();
				},

				layout : function() {
					// summary
					// Widgets override this method to size & position their
					// contents/children.
					// When this is called this._contentBox is guaranteed to be
					// set (see resize()).
					//
					// This is called after startup(), and also when the
					// widget's size has been
					// changed.
				}
			});

	dijit.layout.marginBox2contentBox = function(/* DomNode */node, /* Object */
			mb) {
		// summary:
		// Given the margin-box size of a node, return it's content box size.
		// Functions like dojo.contentBox() but is more reliable since it
		// doesn't have
		// to wait for the browser to compute sizes.
		var cs = dojo.getComputedStyle(node);
		var me = dojo._getMarginExtents(node, cs);
		var pb = dojo._getPadBorderExtents(node, cs);
		return {
			l : dojo._toPixelValue(node, cs.paddingLeft),
			t : dojo._toPixelValue(node, cs.paddingTop),
			w : mb.w - (me.w + pb.w),
			h : mb.h - (me.h + pb.h)
		};
	};

	(function() {
		var capitalize = function(word) {
			return word.substring(0, 1).toUpperCase() + word.substring(1);
		};

		var size = function(widget, dim) {
			// size the child
			widget.resize ? widget.resize(dim) : dojo.marginBox(widget.domNode,
					dim);

			// record child's size, but favor our own numbers when we have them.
			// the browser lies sometimes
			dojo.mixin(widget, dojo.marginBox(widget.domNode));
			dojo.mixin(widget, dim);
		};

		dijit.layout.layoutChildren = function(/* DomNode */container, /* Object */
				dim, /* Object[] */children) {
			/**
			 * summary Layout a bunch of child dom nodes within a parent dom
			 * node container: parent node dim: {l, t, w, h} object specifying
			 * dimensions of container into which to place children children: an
			 * array like [ {domNode: foo, layoutAlign: "bottom" }, {domNode:
			 * bar, layoutAlign: "client"} ]
			 */

			// copy dim because we are going to modify it
			dim = dojo.mixin({}, dim);

			dojo.addClass(container, "dijitLayoutContainer");

			// Move "client" elements to the end of the array for layout. a11y
			// dictates that the author
			// needs to be able to put them in the document in tab-order, but
			// this algorithm requires that
			// client be last.
			children = dojo.filter(children, function(item) {
						return item.layoutAlign != "client";
					}).concat(dojo.filter(children, function(item) {
						return item.layoutAlign == "client";
					}));

			// set positions/sizes
			dojo.forEach(children, function(child) {
						var elm = child.domNode, pos = child.layoutAlign;

						// set elem to upper left corner of unused space; may
						// move it later
						var elmStyle = elm.style;
						elmStyle.left = dim.l + "px";
						elmStyle.top = dim.t + "px";
						elmStyle.bottom = elmStyle.right = "auto";

						dojo.addClass(elm, "dijitAlign" + capitalize(pos));

						// set size && adjust record of remaining space.
						// note that setting the width of a <div> may affect
						// it's height.
						if (pos == "top" || pos == "bottom") {
							size(child, {
										w : dim.w
									});
							dim.h -= child.h;
							if (pos == "top") {
								dim.t += child.h;
							} else {
								elmStyle.top = dim.t + dim.h + "px";
							}
						} else if (pos == "left" || pos == "right") {
							size(child, {
										h : dim.h
									});
							dim.w -= child.w;
							if (pos == "left") {
								dim.l += child.w;
							} else {
								elmStyle.left = dim.l + dim.w + "px";
							}
						} else if (pos == "client") {
							size(child, dim);
						}
					});
		};

	})();

}