From 1354d17270961fff662d40f90521223f8fd0d73b Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Tue, 14 Aug 2012 18:59:10 +0400 Subject: update dojo to 1.7.3 --- lib/dijit/tree/TreeStoreModel.js.uncompressed.js | 383 +++++++++++++++++++++++ 1 file changed, 383 insertions(+) create mode 100644 lib/dijit/tree/TreeStoreModel.js.uncompressed.js (limited to 'lib/dijit/tree/TreeStoreModel.js.uncompressed.js') diff --git a/lib/dijit/tree/TreeStoreModel.js.uncompressed.js b/lib/dijit/tree/TreeStoreModel.js.uncompressed.js new file mode 100644 index 000000000..4e8087c27 --- /dev/null +++ b/lib/dijit/tree/TreeStoreModel.js.uncompressed.js @@ -0,0 +1,383 @@ +define("dijit/tree/TreeStoreModel", [ + "dojo/_base/array", // array.filter array.forEach array.indexOf array.some + "dojo/aspect", // aspect.after + "dojo/_base/declare", // declare + "dojo/_base/json", // json.stringify + "dojo/_base/lang" // lang.hitch +], function(array, aspect, declare, json, lang){ + + // module: + // dijit/tree/TreeStoreModel + // summary: + // Implements dijit.Tree.model connecting to a dojo.data store with a single + // root item. + + return declare("dijit.tree.TreeStoreModel", null, { + // summary: + // Implements dijit.Tree.model connecting to a dojo.data store with a single + // root item. Any methods passed into the constructor will override + // the ones defined here. + + // store: dojo.data.Store + // Underlying store + store: null, + + // childrenAttrs: String[] + // One or more attribute names (attributes in the dojo.data item) that specify that item's children + childrenAttrs: ["children"], + + // newItemIdAttr: String + // Name of attribute in the Object passed to newItem() that specifies the id. + // + // If newItemIdAttr is set then it's used when newItem() is called to see if an + // item with the same id already exists, and if so just links to the old item + // (so that the old item ends up with two parents). + // + // Setting this to null or "" will make every drop create a new item. + newItemIdAttr: "id", + + // labelAttr: String + // If specified, get label for tree node from this attribute, rather + // than by calling store.getLabel() + labelAttr: "", + + // root: [readonly] dojo.data.Item + // Pointer to the root item (read only, not a parameter) + root: null, + + // query: anything + // Specifies datastore query to return the root item for the tree. + // Must only return a single item. Alternately can just pass in pointer + // to root item. + // example: + // | {id:'ROOT'} + query: null, + + // deferItemLoadingUntilExpand: Boolean + // Setting this to true will cause the TreeStoreModel to defer calling loadItem on nodes + // until they are expanded. This allows for lazying loading where only one + // loadItem (and generally one network call, consequently) per expansion + // (rather than one for each child). + // This relies on partial loading of the children items; each children item of a + // fully loaded item should contain the label and info about having children. + deferItemLoadingUntilExpand: false, + + constructor: function(/* Object */ args){ + // summary: + // Passed the arguments listed above (store, etc) + // tags: + // private + + lang.mixin(this, args); + + this.connects = []; + + var store = this.store; + if(!store.getFeatures()['dojo.data.api.Identity']){ + throw new Error("dijit.Tree: store must support dojo.data.Identity"); + } + + // if the store supports Notification, subscribe to the notification events + if(store.getFeatures()['dojo.data.api.Notification']){ + this.connects = this.connects.concat([ + aspect.after(store, "onNew", lang.hitch(this, "onNewItem"), true), + aspect.after(store, "onDelete", lang.hitch(this, "onDeleteItem"), true), + aspect.after(store, "onSet", lang.hitch(this, "onSetItem"), true) + ]); + } + }, + + destroy: function(){ + var h; + while(h = this.connects.pop()){ h.remove(); } + // TODO: should cancel any in-progress processing of getRoot(), getChildren() + }, + + // ======================================================================= + // Methods for traversing hierarchy + + getRoot: function(onItem, onError){ + // summary: + // Calls onItem with the root item for the tree, possibly a fabricated item. + // Calls onError on error. + if(this.root){ + onItem(this.root); + }else{ + this.store.fetch({ + query: this.query, + onComplete: lang.hitch(this, function(items){ + if(items.length != 1){ + throw new Error(this.declaredClass + ": query " + json.stringify(this.query) + " returned " + items.length + + " items, but must return exactly one item"); + } + this.root = items[0]; + onItem(this.root); + }), + onError: onError + }); + } + }, + + mayHaveChildren: function(/*dojo.data.Item*/ item){ + // summary: + // Tells if an item has or may have children. Implementing logic here + // avoids showing +/- expando icon for nodes that we know don't have children. + // (For efficiency reasons we may not want to check if an element actually + // has children until user clicks the expando node) + return array.some(this.childrenAttrs, function(attr){ + return this.store.hasAttribute(item, attr); + }, this); + }, + + getChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ onComplete, /*function*/ onError){ + // summary: + // Calls onComplete() with array of child items of given parent item, all loaded. + + var store = this.store; + if(!store.isItemLoaded(parentItem)){ + // The parent is not loaded yet, we must be in deferItemLoadingUntilExpand + // mode, so we will load it and just return the children (without loading each + // child item) + var getChildren = lang.hitch(this, arguments.callee); + store.loadItem({ + item: parentItem, + onItem: function(parentItem){ + getChildren(parentItem, onComplete, onError); + }, + onError: onError + }); + return; + } + // get children of specified item + var childItems = []; + for(var i=0; i