109 lines
3.5 KiB
JavaScript
109 lines
3.5 KiB
JavaScript
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//>>built
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define("dijit/_Container", [
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"dojo/_base/array", // array.forEach array.indexOf
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"dojo/_base/declare", // declare
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"dojo/dom-construct", // domConstruct.place
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"./registry" // registry.byNode()
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], function(array, declare, domConstruct, registry){
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// module:
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// dijit/_Container
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// summary:
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// Mixin for widgets that contain a set of widget children.
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return declare("dijit._Container", null, {
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// summary:
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// Mixin for widgets that contain a set of widget children.
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// description:
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// Use this mixin for widgets that needs to know about and
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// keep track of their widget children. Suitable for widgets like BorderContainer
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// and TabContainer which contain (only) a set of child widgets.
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//
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// It's not suitable for widgets like ContentPane
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// which contains mixed HTML (plain DOM nodes in addition to widgets),
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// and where contained widgets are not necessarily directly below
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// this.containerNode. In that case calls like addChild(node, position)
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// wouldn't make sense.
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buildRendering: function(){
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this.inherited(arguments);
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if(!this.containerNode){
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// all widgets with descendants must set containerNode
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this.containerNode = this.domNode;
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}
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},
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addChild: function(/*dijit._Widget*/ widget, /*int?*/ insertIndex){
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// summary:
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// Makes the given widget a child of this widget.
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// description:
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// Inserts specified child widget's dom node as a child of this widget's
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// container node, and possibly does other processing (such as layout).
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var refNode = this.containerNode;
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if(insertIndex && typeof insertIndex == "number"){
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var children = this.getChildren();
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if(children && children.length >= insertIndex){
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refNode = children[insertIndex-1].domNode;
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insertIndex = "after";
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}
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}
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domConstruct.place(widget.domNode, refNode, insertIndex);
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// If I've been started but the child widget hasn't been started,
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// start it now. Make sure to do this after widget has been
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// inserted into the DOM tree, so it can see that it's being controlled by me,
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// so it doesn't try to size itself.
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if(this._started && !widget._started){
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widget.startup();
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}
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},
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removeChild: function(/*Widget|int*/ widget){
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// summary:
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// Removes the passed widget instance from this widget but does
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// not destroy it. You can also pass in an integer indicating
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// the index within the container to remove
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if(typeof widget == "number"){
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widget = this.getChildren()[widget];
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}
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if(widget){
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var node = widget.domNode;
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if(node && node.parentNode){
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node.parentNode.removeChild(node); // detach but don't destroy
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}
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}
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},
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hasChildren: function(){
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// summary:
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// Returns true if widget has children, i.e. if this.containerNode contains something.
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return this.getChildren().length > 0; // Boolean
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},
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_getSiblingOfChild: function(/*dijit._Widget*/ child, /*int*/ dir){
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// summary:
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// Get the next or previous widget sibling of child
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// dir:
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// if 1, get the next sibling
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// if -1, get the previous sibling
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// tags:
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// private
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var node = child.domNode,
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which = (dir>0 ? "nextSibling" : "previousSibling");
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do{
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node = node[which];
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}while(node && (node.nodeType != 1 || !registry.byNode(node)));
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return node && registry.byNode(node); // dijit._Widget
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},
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getIndexOfChild: function(/*dijit._Widget*/ child){
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// summary:
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// Gets the index of the child in this container or -1 if not found
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return array.indexOf(this.getChildren(), child); // int
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}
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});
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});
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