[256] | 1 | define([ |
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| 2 | "dojo/_base/array", // array.filter array.forEach array.map |
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| 3 | "dojo/_base/connect", // connect.isCopyKey() |
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| 4 | "dojo/cookie", // cookie |
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| 5 | "dojo/_base/declare", // declare |
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| 6 | "dojo/_base/Deferred", // Deferred |
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| 7 | "dojo/DeferredList", // DeferredList |
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| 8 | "dojo/dom", // dom.isDescendant |
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| 9 | "dojo/dom-class", // domClass.add domClass.remove domClass.replace domClass.toggle |
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| 10 | "dojo/dom-geometry", // domGeometry.setMarginBox domGeometry.position |
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| 11 | "dojo/dom-style",// domStyle.set |
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| 12 | "dojo/_base/event", // event.stop |
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| 13 | "dojo/fx", // fxUtils.wipeIn fxUtils.wipeOut |
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| 14 | "dojo/_base/kernel", // kernel.deprecated |
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| 15 | "dojo/keys", // arrows etc. |
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| 16 | "dojo/_base/lang", // lang.getObject lang.mixin lang.hitch |
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| 17 | "dojo/topic", |
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| 18 | "./focus", |
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| 19 | "./registry", // registry.getEnclosingWidget(), manager.defaultDuration |
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| 20 | "./_base/manager", // manager.getEnclosingWidget(), manager.defaultDuration |
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| 21 | "./_Widget", |
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| 22 | "./_TemplatedMixin", |
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| 23 | "./_Container", |
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| 24 | "./_Contained", |
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| 25 | "./_CssStateMixin", |
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| 26 | "dojo/text!./templates/TreeNode.html", |
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| 27 | "dojo/text!./templates/Tree.html", |
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| 28 | "./tree/TreeStoreModel", |
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| 29 | "./tree/ForestStoreModel", |
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| 30 | "./tree/_dndSelector" |
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| 31 | ], function(array, connect, cookie, declare, Deferred, DeferredList, |
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| 32 | dom, domClass, domGeometry, domStyle, event, fxUtils, kernel, keys, lang, topic, |
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| 33 | focus, registry, manager, _Widget, _TemplatedMixin, _Container, _Contained, _CssStateMixin, |
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| 34 | treeNodeTemplate, treeTemplate, TreeStoreModel, ForestStoreModel, _dndSelector){ |
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| 35 | |
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| 36 | /*===== |
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| 37 | var _Widget = dijit._Widget; |
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| 38 | var _TemplatedMixin = dijit._TemplatedMixin; |
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| 39 | var _CssStateMixin = dijit._CssStateMixin; |
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| 40 | var _Container = dijit._Container; |
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| 41 | var _Contained = dijit._Contained; |
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| 42 | =====*/ |
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| 43 | |
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| 44 | // module: |
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| 45 | // dijit/Tree |
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| 46 | // summary: |
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| 47 | // dijit.Tree widget, and internal dijit._TreeNode widget |
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| 48 | |
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| 49 | |
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| 50 | var TreeNode = declare( |
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| 51 | "dijit._TreeNode", |
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| 52 | [_Widget, _TemplatedMixin, _Container, _Contained, _CssStateMixin], |
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| 53 | { |
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| 54 | // summary: |
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| 55 | // Single node within a tree. This class is used internally |
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| 56 | // by Tree and should not be accessed directly. |
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| 57 | // tags: |
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| 58 | // private |
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| 59 | |
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| 60 | // item: [const] Item |
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| 61 | // the dojo.data entry this tree represents |
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| 62 | item: null, |
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| 63 | |
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| 64 | // isTreeNode: [protected] Boolean |
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| 65 | // Indicates that this is a TreeNode. Used by `dijit.Tree` only, |
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| 66 | // should not be accessed directly. |
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| 67 | isTreeNode: true, |
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| 68 | |
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| 69 | // label: String |
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| 70 | // Text of this tree node |
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| 71 | label: "", |
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| 72 | _setLabelAttr: {node: "labelNode", type: "innerText"}, |
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| 73 | |
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| 74 | // isExpandable: [private] Boolean |
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| 75 | // This node has children, so show the expando node (+ sign) |
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| 76 | isExpandable: null, |
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| 77 | |
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| 78 | // isExpanded: [readonly] Boolean |
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| 79 | // This node is currently expanded (ie, opened) |
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| 80 | isExpanded: false, |
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| 81 | |
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| 82 | // state: [private] String |
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| 83 | // Dynamic loading-related stuff. |
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| 84 | // When an empty folder node appears, it is "UNCHECKED" first, |
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| 85 | // then after dojo.data query it becomes "LOADING" and, finally "LOADED" |
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| 86 | state: "UNCHECKED", |
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| 87 | |
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| 88 | templateString: treeNodeTemplate, |
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| 89 | |
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| 90 | baseClass: "dijitTreeNode", |
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| 91 | |
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| 92 | // For hover effect for tree node, and focus effect for label |
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| 93 | cssStateNodes: { |
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| 94 | rowNode: "dijitTreeRow", |
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| 95 | labelNode: "dijitTreeLabel" |
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| 96 | }, |
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| 97 | |
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| 98 | // Tooltip is defined in _WidgetBase but we need to handle the mapping to DOM here |
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| 99 | _setTooltipAttr: {node: "rowNode", type: "attribute", attribute: "title"}, |
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| 100 | |
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| 101 | buildRendering: function(){ |
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| 102 | this.inherited(arguments); |
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| 103 | |
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| 104 | // set expand icon for leaf |
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| 105 | this._setExpando(); |
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| 106 | |
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| 107 | // set icon and label class based on item |
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| 108 | this._updateItemClasses(this.item); |
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| 109 | |
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| 110 | if(this.isExpandable){ |
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| 111 | this.labelNode.setAttribute("aria-expanded", this.isExpanded); |
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| 112 | } |
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| 113 | |
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| 114 | //aria-selected should be false on all selectable elements. |
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| 115 | this.setSelected(false); |
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| 116 | }, |
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| 117 | |
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| 118 | _setIndentAttr: function(indent){ |
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| 119 | // summary: |
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| 120 | // Tell this node how many levels it should be indented |
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| 121 | // description: |
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| 122 | // 0 for top level nodes, 1 for their children, 2 for their |
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| 123 | // grandchildren, etc. |
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| 124 | |
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| 125 | // Math.max() is to prevent negative padding on hidden root node (when indent == -1) |
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| 126 | var pixels = (Math.max(indent, 0) * this.tree._nodePixelIndent) + "px"; |
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| 127 | |
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| 128 | domStyle.set(this.domNode, "backgroundPosition", pixels + " 0px"); |
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| 129 | domStyle.set(this.rowNode, this.isLeftToRight() ? "paddingLeft" : "paddingRight", pixels); |
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| 130 | |
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| 131 | array.forEach(this.getChildren(), function(child){ |
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| 132 | child.set("indent", indent+1); |
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| 133 | }); |
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| 134 | |
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| 135 | this._set("indent", indent); |
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| 136 | }, |
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| 137 | |
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| 138 | markProcessing: function(){ |
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| 139 | // summary: |
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| 140 | // Visually denote that tree is loading data, etc. |
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| 141 | // tags: |
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| 142 | // private |
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| 143 | this.state = "LOADING"; |
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| 144 | this._setExpando(true); |
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| 145 | }, |
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| 146 | |
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| 147 | unmarkProcessing: function(){ |
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| 148 | // summary: |
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| 149 | // Clear markup from markProcessing() call |
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| 150 | // tags: |
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| 151 | // private |
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| 152 | this._setExpando(false); |
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| 153 | }, |
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| 154 | |
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| 155 | _updateItemClasses: function(item){ |
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| 156 | // summary: |
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| 157 | // Set appropriate CSS classes for icon and label dom node |
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| 158 | // (used to allow for item updates to change respective CSS) |
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| 159 | // tags: |
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| 160 | // private |
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| 161 | var tree = this.tree, model = tree.model; |
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| 162 | if(tree._v10Compat && item === model.root){ |
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| 163 | // For back-compat with 1.0, need to use null to specify root item (TODO: remove in 2.0) |
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| 164 | item = null; |
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| 165 | } |
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| 166 | this._applyClassAndStyle(item, "icon", "Icon"); |
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| 167 | this._applyClassAndStyle(item, "label", "Label"); |
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| 168 | this._applyClassAndStyle(item, "row", "Row"); |
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| 169 | }, |
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| 170 | |
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| 171 | _applyClassAndStyle: function(item, lower, upper){ |
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| 172 | // summary: |
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| 173 | // Set the appropriate CSS classes and styles for labels, icons and rows. |
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| 174 | // |
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| 175 | // item: |
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| 176 | // The data item. |
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| 177 | // |
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| 178 | // lower: |
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| 179 | // The lower case attribute to use, e.g. 'icon', 'label' or 'row'. |
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| 180 | // |
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| 181 | // upper: |
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| 182 | // The upper case attribute to use, e.g. 'Icon', 'Label' or 'Row'. |
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| 183 | // |
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| 184 | // tags: |
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| 185 | // private |
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| 186 | |
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| 187 | var clsName = "_" + lower + "Class"; |
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| 188 | var nodeName = lower + "Node"; |
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| 189 | var oldCls = this[clsName]; |
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| 190 | |
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| 191 | this[clsName] = this.tree["get" + upper + "Class"](item, this.isExpanded); |
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| 192 | domClass.replace(this[nodeName], this[clsName] || "", oldCls || ""); |
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| 193 | |
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| 194 | domStyle.set(this[nodeName], this.tree["get" + upper + "Style"](item, this.isExpanded) || {}); |
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| 195 | }, |
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| 196 | |
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| 197 | _updateLayout: function(){ |
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| 198 | // summary: |
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| 199 | // Set appropriate CSS classes for this.domNode |
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| 200 | // tags: |
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| 201 | // private |
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| 202 | var parent = this.getParent(); |
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| 203 | if(!parent || !parent.rowNode || parent.rowNode.style.display == "none"){ |
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| 204 | /* if we are hiding the root node then make every first level child look like a root node */ |
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| 205 | domClass.add(this.domNode, "dijitTreeIsRoot"); |
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| 206 | }else{ |
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| 207 | domClass.toggle(this.domNode, "dijitTreeIsLast", !this.getNextSibling()); |
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| 208 | } |
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| 209 | }, |
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| 210 | |
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| 211 | _setExpando: function(/*Boolean*/ processing){ |
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| 212 | // summary: |
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| 213 | // Set the right image for the expando node |
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| 214 | // tags: |
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| 215 | // private |
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| 216 | |
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| 217 | var styles = ["dijitTreeExpandoLoading", "dijitTreeExpandoOpened", |
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| 218 | "dijitTreeExpandoClosed", "dijitTreeExpandoLeaf"], |
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| 219 | _a11yStates = ["*","-","+","*"], |
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| 220 | idx = processing ? 0 : (this.isExpandable ? (this.isExpanded ? 1 : 2) : 3); |
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| 221 | |
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| 222 | // apply the appropriate class to the expando node |
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| 223 | domClass.replace(this.expandoNode, styles[idx], styles); |
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| 224 | |
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| 225 | // provide a non-image based indicator for images-off mode |
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| 226 | this.expandoNodeText.innerHTML = _a11yStates[idx]; |
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| 227 | |
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| 228 | }, |
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| 229 | |
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| 230 | expand: function(){ |
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| 231 | // summary: |
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| 232 | // Show my children |
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| 233 | // returns: |
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| 234 | // Deferred that fires when expansion is complete |
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| 235 | |
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| 236 | // If there's already an expand in progress or we are already expanded, just return |
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| 237 | if(this._expandDeferred){ |
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| 238 | return this._expandDeferred; // dojo.Deferred |
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| 239 | } |
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| 240 | |
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| 241 | // cancel in progress collapse operation |
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| 242 | this._wipeOut && this._wipeOut.stop(); |
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| 243 | |
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| 244 | // All the state information for when a node is expanded, maybe this should be |
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| 245 | // set when the animation completes instead |
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| 246 | this.isExpanded = true; |
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| 247 | this.labelNode.setAttribute("aria-expanded", "true"); |
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| 248 | if(this.tree.showRoot || this !== this.tree.rootNode){ |
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| 249 | this.containerNode.setAttribute("role", "group"); |
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| 250 | } |
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| 251 | domClass.add(this.contentNode,'dijitTreeContentExpanded'); |
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| 252 | this._setExpando(); |
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| 253 | this._updateItemClasses(this.item); |
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| 254 | if(this == this.tree.rootNode){ |
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| 255 | this.tree.domNode.setAttribute("aria-expanded", "true"); |
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| 256 | } |
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| 257 | |
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| 258 | var def, |
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| 259 | wipeIn = fxUtils.wipeIn({ |
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| 260 | node: this.containerNode, duration: manager.defaultDuration, |
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| 261 | onEnd: function(){ |
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| 262 | def.callback(true); |
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| 263 | } |
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| 264 | }); |
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| 265 | |
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| 266 | // Deferred that fires when expand is complete |
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| 267 | def = (this._expandDeferred = new Deferred(function(){ |
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| 268 | // Canceller |
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| 269 | wipeIn.stop(); |
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| 270 | })); |
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| 271 | |
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| 272 | wipeIn.play(); |
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| 273 | |
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| 274 | return def; // dojo.Deferred |
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| 275 | }, |
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| 276 | |
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| 277 | collapse: function(){ |
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| 278 | // summary: |
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| 279 | // Collapse this node (if it's expanded) |
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| 280 | |
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| 281 | if(!this.isExpanded){ return; } |
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| 282 | |
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| 283 | // cancel in progress expand operation |
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| 284 | if(this._expandDeferred){ |
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| 285 | this._expandDeferred.cancel(); |
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| 286 | delete this._expandDeferred; |
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| 287 | } |
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| 288 | |
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| 289 | this.isExpanded = false; |
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| 290 | this.labelNode.setAttribute("aria-expanded", "false"); |
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| 291 | if(this == this.tree.rootNode){ |
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| 292 | this.tree.domNode.setAttribute("aria-expanded", "false"); |
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| 293 | } |
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| 294 | domClass.remove(this.contentNode,'dijitTreeContentExpanded'); |
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| 295 | this._setExpando(); |
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| 296 | this._updateItemClasses(this.item); |
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| 297 | |
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| 298 | if(!this._wipeOut){ |
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| 299 | this._wipeOut = fxUtils.wipeOut({ |
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| 300 | node: this.containerNode, duration: manager.defaultDuration |
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| 301 | }); |
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| 302 | } |
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| 303 | this._wipeOut.play(); |
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| 304 | }, |
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| 305 | |
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| 306 | // indent: Integer |
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| 307 | // Levels from this node to the root node |
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| 308 | indent: 0, |
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| 309 | |
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| 310 | setChildItems: function(/* Object[] */ items){ |
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| 311 | // summary: |
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| 312 | // Sets the child items of this node, removing/adding nodes |
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| 313 | // from current children to match specified items[] array. |
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| 314 | // Also, if this.persist == true, expands any children that were previously |
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| 315 | // opened. |
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| 316 | // returns: |
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| 317 | // Deferred object that fires after all previously opened children |
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| 318 | // have been expanded again (or fires instantly if there are no such children). |
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| 319 | |
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| 320 | var tree = this.tree, |
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| 321 | model = tree.model, |
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| 322 | defs = []; // list of deferreds that need to fire before I am complete |
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| 323 | |
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| 324 | |
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| 325 | // Orphan all my existing children. |
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| 326 | // If items contains some of the same items as before then we will reattach them. |
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| 327 | // Don't call this.removeChild() because that will collapse the tree etc. |
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| 328 | array.forEach(this.getChildren(), function(child){ |
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| 329 | _Container.prototype.removeChild.call(this, child); |
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| 330 | }, this); |
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| 331 | |
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| 332 | this.state = "LOADED"; |
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| 333 | |
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| 334 | if(items && items.length > 0){ |
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| 335 | this.isExpandable = true; |
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| 336 | |
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| 337 | // Create _TreeNode widget for each specified tree node, unless one already |
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| 338 | // exists and isn't being used (presumably it's from a DnD move and was recently |
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| 339 | // released |
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| 340 | array.forEach(items, function(item){ |
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| 341 | var id = model.getIdentity(item), |
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| 342 | existingNodes = tree._itemNodesMap[id], |
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| 343 | node; |
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| 344 | if(existingNodes){ |
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| 345 | for(var i=0;i<existingNodes.length;i++){ |
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| 346 | if(existingNodes[i] && !existingNodes[i].getParent()){ |
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| 347 | node = existingNodes[i]; |
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| 348 | node.set('indent', this.indent+1); |
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| 349 | break; |
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| 350 | } |
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| 351 | } |
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| 352 | } |
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| 353 | if(!node){ |
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| 354 | node = this.tree._createTreeNode({ |
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| 355 | item: item, |
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| 356 | tree: tree, |
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| 357 | isExpandable: model.mayHaveChildren(item), |
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| 358 | label: tree.getLabel(item), |
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| 359 | tooltip: tree.getTooltip(item), |
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| 360 | dir: tree.dir, |
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| 361 | lang: tree.lang, |
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| 362 | textDir: tree.textDir, |
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| 363 | indent: this.indent + 1 |
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| 364 | }); |
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| 365 | if(existingNodes){ |
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| 366 | existingNodes.push(node); |
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| 367 | }else{ |
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| 368 | tree._itemNodesMap[id] = [node]; |
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| 369 | } |
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| 370 | } |
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| 371 | this.addChild(node); |
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| 372 | |
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| 373 | // If node was previously opened then open it again now (this may trigger |
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| 374 | // more data store accesses, recursively) |
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| 375 | if(this.tree.autoExpand || this.tree._state(node)){ |
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| 376 | defs.push(tree._expandNode(node)); |
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| 377 | } |
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| 378 | }, this); |
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| 379 | |
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| 380 | // note that updateLayout() needs to be called on each child after |
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| 381 | // _all_ the children exist |
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| 382 | array.forEach(this.getChildren(), function(child){ |
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| 383 | child._updateLayout(); |
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| 384 | }); |
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| 385 | }else{ |
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| 386 | this.isExpandable=false; |
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| 387 | } |
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| 388 | |
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| 389 | if(this._setExpando){ |
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| 390 | // change expando to/from dot or + icon, as appropriate |
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| 391 | this._setExpando(false); |
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| 392 | } |
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| 393 | |
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| 394 | // Set leaf icon or folder icon, as appropriate |
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| 395 | this._updateItemClasses(this.item); |
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| 396 | |
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| 397 | // On initial tree show, make the selected TreeNode as either the root node of the tree, |
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| 398 | // or the first child, if the root node is hidden |
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| 399 | if(this == tree.rootNode){ |
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| 400 | var fc = this.tree.showRoot ? this : this.getChildren()[0]; |
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| 401 | if(fc){ |
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| 402 | fc.setFocusable(true); |
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| 403 | tree.lastFocused = fc; |
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| 404 | }else{ |
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| 405 | // fallback: no nodes in tree so focus on Tree <div> itself |
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| 406 | tree.domNode.setAttribute("tabIndex", "0"); |
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| 407 | } |
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| 408 | } |
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| 409 | |
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| 410 | return new DeferredList(defs); // dojo.Deferred |
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| 411 | }, |
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| 412 | |
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| 413 | getTreePath: function(){ |
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| 414 | var node = this; |
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| 415 | var path = []; |
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| 416 | while(node && node !== this.tree.rootNode){ |
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| 417 | path.unshift(node.item); |
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| 418 | node = node.getParent(); |
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| 419 | } |
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| 420 | path.unshift(this.tree.rootNode.item); |
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| 421 | |
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| 422 | return path; |
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| 423 | }, |
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| 424 | |
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| 425 | getIdentity: function(){ |
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| 426 | return this.tree.model.getIdentity(this.item); |
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| 427 | }, |
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| 428 | |
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| 429 | removeChild: function(/* treeNode */ node){ |
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| 430 | this.inherited(arguments); |
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| 431 | |
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| 432 | var children = this.getChildren(); |
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| 433 | if(children.length == 0){ |
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| 434 | this.isExpandable = false; |
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| 435 | this.collapse(); |
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| 436 | } |
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| 437 | |
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| 438 | array.forEach(children, function(child){ |
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| 439 | child._updateLayout(); |
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| 440 | }); |
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| 441 | }, |
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| 442 | |
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| 443 | makeExpandable: function(){ |
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| 444 | // summary: |
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| 445 | // if this node wasn't already showing the expando node, |
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| 446 | // turn it into one and call _setExpando() |
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| 447 | |
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| 448 | // TODO: hmm this isn't called from anywhere, maybe should remove it for 2.0 |
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| 449 | |
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| 450 | this.isExpandable = true; |
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| 451 | this._setExpando(false); |
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| 452 | }, |
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| 453 | |
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| 454 | _onLabelFocus: function(){ |
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| 455 | // summary: |
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| 456 | // Called when this row is focused (possibly programatically) |
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| 457 | // Note that we aren't using _onFocus() builtin to dijit |
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| 458 | // because it's called when focus is moved to a descendant TreeNode. |
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| 459 | // tags: |
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| 460 | // private |
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| 461 | this.tree._onNodeFocus(this); |
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| 462 | }, |
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| 463 | |
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| 464 | setSelected: function(/*Boolean*/ selected){ |
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| 465 | // summary: |
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| 466 | // A Tree has a (single) currently selected node. |
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| 467 | // Mark that this node is/isn't that currently selected node. |
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| 468 | // description: |
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| 469 | // In particular, setting a node as selected involves setting tabIndex |
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| 470 | // so that when user tabs to the tree, focus will go to that node (only). |
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| 471 | this.labelNode.setAttribute("aria-selected", selected); |
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| 472 | domClass.toggle(this.rowNode, "dijitTreeRowSelected", selected); |
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| 473 | }, |
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| 474 | |
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| 475 | setFocusable: function(/*Boolean*/ selected){ |
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| 476 | // summary: |
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| 477 | // A Tree has a (single) node that's focusable. |
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| 478 | // Mark that this node is/isn't that currently focsuable node. |
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| 479 | // description: |
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| 480 | // In particular, setting a node as selected involves setting tabIndex |
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| 481 | // so that when user tabs to the tree, focus will go to that node (only). |
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| 482 | |
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| 483 | this.labelNode.setAttribute("tabIndex", selected ? "0" : "-1"); |
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| 484 | }, |
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| 485 | |
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| 486 | _onClick: function(evt){ |
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| 487 | // summary: |
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| 488 | // Handler for onclick event on a node |
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| 489 | // tags: |
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| 490 | // private |
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| 491 | this.tree._onClick(this, evt); |
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| 492 | }, |
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| 493 | _onDblClick: function(evt){ |
---|
| 494 | // summary: |
---|
| 495 | // Handler for ondblclick event on a node |
---|
| 496 | // tags: |
---|
| 497 | // private |
---|
| 498 | this.tree._onDblClick(this, evt); |
---|
| 499 | }, |
---|
| 500 | |
---|
| 501 | _onMouseEnter: function(evt){ |
---|
| 502 | // summary: |
---|
| 503 | // Handler for onmouseenter event on a node |
---|
| 504 | // tags: |
---|
| 505 | // private |
---|
| 506 | this.tree._onNodeMouseEnter(this, evt); |
---|
| 507 | }, |
---|
| 508 | |
---|
| 509 | _onMouseLeave: function(evt){ |
---|
| 510 | // summary: |
---|
| 511 | // Handler for onmouseenter event on a node |
---|
| 512 | // tags: |
---|
| 513 | // private |
---|
| 514 | this.tree._onNodeMouseLeave(this, evt); |
---|
| 515 | }, |
---|
| 516 | |
---|
| 517 | _setTextDirAttr: function(textDir){ |
---|
| 518 | if(textDir &&((this.textDir != textDir) || !this._created)){ |
---|
| 519 | this._set("textDir", textDir); |
---|
| 520 | this.applyTextDir(this.labelNode, this.labelNode.innerText || this.labelNode.textContent || ""); |
---|
| 521 | array.forEach(this.getChildren(), function(childNode){ |
---|
| 522 | childNode.set("textDir", textDir); |
---|
| 523 | }, this); |
---|
| 524 | } |
---|
| 525 | } |
---|
| 526 | }); |
---|
| 527 | |
---|
| 528 | var Tree = declare("dijit.Tree", [_Widget, _TemplatedMixin], { |
---|
| 529 | // summary: |
---|
| 530 | // This widget displays hierarchical data from a store. |
---|
| 531 | |
---|
| 532 | // store: [deprecated] String||dojo.data.Store |
---|
| 533 | // Deprecated. Use "model" parameter instead. |
---|
| 534 | // The store to get data to display in the tree. |
---|
| 535 | store: null, |
---|
| 536 | |
---|
| 537 | // model: dijit.Tree.model |
---|
| 538 | // Interface to read tree data, get notifications of changes to tree data, |
---|
| 539 | // and for handling drop operations (i.e drag and drop onto the tree) |
---|
| 540 | model: null, |
---|
| 541 | |
---|
| 542 | // query: [deprecated] anything |
---|
| 543 | // Deprecated. User should specify query to the model directly instead. |
---|
| 544 | // Specifies datastore query to return the root item or top items for the tree. |
---|
| 545 | query: null, |
---|
| 546 | |
---|
| 547 | // label: [deprecated] String |
---|
| 548 | // Deprecated. Use dijit.tree.ForestStoreModel directly instead. |
---|
| 549 | // Used in conjunction with query parameter. |
---|
| 550 | // If a query is specified (rather than a root node id), and a label is also specified, |
---|
| 551 | // then a fake root node is created and displayed, with this label. |
---|
| 552 | label: "", |
---|
| 553 | |
---|
| 554 | // showRoot: [const] Boolean |
---|
| 555 | // Should the root node be displayed, or hidden? |
---|
| 556 | showRoot: true, |
---|
| 557 | |
---|
| 558 | // childrenAttr: [deprecated] String[] |
---|
| 559 | // Deprecated. This information should be specified in the model. |
---|
| 560 | // One ore more attributes that holds children of a tree node |
---|
| 561 | childrenAttr: ["children"], |
---|
| 562 | |
---|
| 563 | // paths: String[][] or Item[][] |
---|
| 564 | // Full paths from rootNode to selected nodes expressed as array of items or array of ids. |
---|
| 565 | // Since setting the paths may be asynchronous (because ofwaiting on dojo.data), set("paths", ...) |
---|
| 566 | // returns a Deferred to indicate when the set is complete. |
---|
| 567 | paths: [], |
---|
| 568 | |
---|
| 569 | // path: String[] or Item[] |
---|
| 570 | // Backward compatible singular variant of paths. |
---|
| 571 | path: [], |
---|
| 572 | |
---|
| 573 | // selectedItems: [readonly] Item[] |
---|
| 574 | // The currently selected items in this tree. |
---|
| 575 | // This property can only be set (via set('selectedItems', ...)) when that item is already |
---|
| 576 | // visible in the tree. (I.e. the tree has already been expanded to show that node.) |
---|
| 577 | // Should generally use `paths` attribute to set the selected items instead. |
---|
| 578 | selectedItems: null, |
---|
| 579 | |
---|
| 580 | // selectedItem: [readonly] Item |
---|
| 581 | // Backward compatible singular variant of selectedItems. |
---|
| 582 | selectedItem: null, |
---|
| 583 | |
---|
| 584 | // openOnClick: Boolean |
---|
| 585 | // If true, clicking a folder node's label will open it, rather than calling onClick() |
---|
| 586 | openOnClick: false, |
---|
| 587 | |
---|
| 588 | // openOnDblClick: Boolean |
---|
| 589 | // If true, double-clicking a folder node's label will open it, rather than calling onDblClick() |
---|
| 590 | openOnDblClick: false, |
---|
| 591 | |
---|
| 592 | templateString: treeTemplate, |
---|
| 593 | |
---|
| 594 | // persist: Boolean |
---|
| 595 | // Enables/disables use of cookies for state saving. |
---|
| 596 | persist: true, |
---|
| 597 | |
---|
| 598 | // autoExpand: Boolean |
---|
| 599 | // Fully expand the tree on load. Overrides `persist`. |
---|
| 600 | autoExpand: false, |
---|
| 601 | |
---|
| 602 | // dndController: [protected] Function|String |
---|
| 603 | // Class to use as as the dnd controller. Specifying this class enables DnD. |
---|
| 604 | // Generally you should specify this as dijit.tree.dndSource. |
---|
| 605 | // Setting of dijit.tree._dndSelector handles selection only (no actual DnD). |
---|
| 606 | dndController: _dndSelector, |
---|
| 607 | |
---|
| 608 | // parameters to pull off of the tree and pass on to the dndController as its params |
---|
| 609 | dndParams: ["onDndDrop","itemCreator","onDndCancel","checkAcceptance", "checkItemAcceptance", "dragThreshold", "betweenThreshold"], |
---|
| 610 | |
---|
| 611 | //declare the above items so they can be pulled from the tree's markup |
---|
| 612 | |
---|
| 613 | // onDndDrop: [protected] Function |
---|
| 614 | // Parameter to dndController, see `dijit.tree.dndSource.onDndDrop`. |
---|
| 615 | // Generally this doesn't need to be set. |
---|
| 616 | onDndDrop: null, |
---|
| 617 | |
---|
| 618 | /*===== |
---|
| 619 | itemCreator: function(nodes, target, source){ |
---|
| 620 | // summary: |
---|
| 621 | // Returns objects passed to `Tree.model.newItem()` based on DnD nodes |
---|
| 622 | // dropped onto the tree. Developer must override this method to enable |
---|
| 623 | // dropping from external sources onto this Tree, unless the Tree.model's items |
---|
| 624 | // happen to look like {id: 123, name: "Apple" } with no other attributes. |
---|
| 625 | // description: |
---|
| 626 | // For each node in nodes[], which came from source, create a hash of name/value |
---|
| 627 | // pairs to be passed to Tree.model.newItem(). Returns array of those hashes. |
---|
| 628 | // nodes: DomNode[] |
---|
| 629 | // The DOMNodes dragged from the source container |
---|
| 630 | // target: DomNode |
---|
| 631 | // The target TreeNode.rowNode |
---|
| 632 | // source: dojo.dnd.Source |
---|
| 633 | // The source container the nodes were dragged from, perhaps another Tree or a plain dojo.dnd.Source |
---|
| 634 | // returns: Object[] |
---|
| 635 | // Array of name/value hashes for each new item to be added to the Tree, like: |
---|
| 636 | // | [ |
---|
| 637 | // | { id: 123, label: "apple", foo: "bar" }, |
---|
| 638 | // | { id: 456, label: "pear", zaz: "bam" } |
---|
| 639 | // | ] |
---|
| 640 | // tags: |
---|
| 641 | // extension |
---|
| 642 | return [{}]; |
---|
| 643 | }, |
---|
| 644 | =====*/ |
---|
| 645 | itemCreator: null, |
---|
| 646 | |
---|
| 647 | // onDndCancel: [protected] Function |
---|
| 648 | // Parameter to dndController, see `dijit.tree.dndSource.onDndCancel`. |
---|
| 649 | // Generally this doesn't need to be set. |
---|
| 650 | onDndCancel: null, |
---|
| 651 | |
---|
| 652 | /*===== |
---|
| 653 | checkAcceptance: function(source, nodes){ |
---|
| 654 | // summary: |
---|
| 655 | // Checks if the Tree itself can accept nodes from this source |
---|
| 656 | // source: dijit.tree._dndSource |
---|
| 657 | // The source which provides items |
---|
| 658 | // nodes: DOMNode[] |
---|
| 659 | // Array of DOM nodes corresponding to nodes being dropped, dijitTreeRow nodes if |
---|
| 660 | // source is a dijit.Tree. |
---|
| 661 | // tags: |
---|
| 662 | // extension |
---|
| 663 | return true; // Boolean |
---|
| 664 | }, |
---|
| 665 | =====*/ |
---|
| 666 | checkAcceptance: null, |
---|
| 667 | |
---|
| 668 | /*===== |
---|
| 669 | checkItemAcceptance: function(target, source, position){ |
---|
| 670 | // summary: |
---|
| 671 | // Stub function to be overridden if one wants to check for the ability to drop at the node/item level |
---|
| 672 | // description: |
---|
| 673 | // In the base case, this is called to check if target can become a child of source. |
---|
| 674 | // When betweenThreshold is set, position="before" or "after" means that we |
---|
| 675 | // are asking if the source node can be dropped before/after the target node. |
---|
| 676 | // target: DOMNode |
---|
| 677 | // The dijitTreeRoot DOM node inside of the TreeNode that we are dropping on to |
---|
| 678 | // Use dijit.getEnclosingWidget(target) to get the TreeNode. |
---|
| 679 | // source: dijit.tree.dndSource |
---|
| 680 | // The (set of) nodes we are dropping |
---|
| 681 | // position: String |
---|
| 682 | // "over", "before", or "after" |
---|
| 683 | // tags: |
---|
| 684 | // extension |
---|
| 685 | return true; // Boolean |
---|
| 686 | }, |
---|
| 687 | =====*/ |
---|
| 688 | checkItemAcceptance: null, |
---|
| 689 | |
---|
| 690 | // dragThreshold: Integer |
---|
| 691 | // Number of pixels mouse moves before it's considered the start of a drag operation |
---|
| 692 | dragThreshold: 5, |
---|
| 693 | |
---|
| 694 | // betweenThreshold: Integer |
---|
| 695 | // Set to a positive value to allow drag and drop "between" nodes. |
---|
| 696 | // |
---|
| 697 | // If during DnD mouse is over a (target) node but less than betweenThreshold |
---|
| 698 | // pixels from the bottom edge, dropping the the dragged node will make it |
---|
| 699 | // the next sibling of the target node, rather than the child. |
---|
| 700 | // |
---|
| 701 | // Similarly, if mouse is over a target node but less that betweenThreshold |
---|
| 702 | // pixels from the top edge, dropping the dragged node will make it |
---|
| 703 | // the target node's previous sibling rather than the target node's child. |
---|
| 704 | betweenThreshold: 0, |
---|
| 705 | |
---|
| 706 | // _nodePixelIndent: Integer |
---|
| 707 | // Number of pixels to indent tree nodes (relative to parent node). |
---|
| 708 | // Default is 19 but can be overridden by setting CSS class dijitTreeIndent |
---|
| 709 | // and calling resize() or startup() on tree after it's in the DOM. |
---|
| 710 | _nodePixelIndent: 19, |
---|
| 711 | |
---|
| 712 | _publish: function(/*String*/ topicName, /*Object*/ message){ |
---|
| 713 | // summary: |
---|
| 714 | // Publish a message for this widget/topic |
---|
| 715 | topic.publish(this.id, lang.mixin({tree: this, event: topicName}, message || {})); // publish |
---|
| 716 | }, |
---|
| 717 | |
---|
| 718 | postMixInProperties: function(){ |
---|
| 719 | this.tree = this; |
---|
| 720 | |
---|
| 721 | if(this.autoExpand){ |
---|
| 722 | // There's little point in saving opened/closed state of nodes for a Tree |
---|
| 723 | // that initially opens all it's nodes. |
---|
| 724 | this.persist = false; |
---|
| 725 | } |
---|
| 726 | |
---|
| 727 | this._itemNodesMap={}; |
---|
| 728 | |
---|
| 729 | if(!this.cookieName && this.id){ |
---|
| 730 | this.cookieName = this.id + "SaveStateCookie"; |
---|
| 731 | } |
---|
| 732 | |
---|
| 733 | this._loadDeferred = new Deferred(); |
---|
| 734 | |
---|
| 735 | this.inherited(arguments); |
---|
| 736 | }, |
---|
| 737 | |
---|
| 738 | postCreate: function(){ |
---|
| 739 | this._initState(); |
---|
| 740 | |
---|
| 741 | // Create glue between store and Tree, if not specified directly by user |
---|
| 742 | if(!this.model){ |
---|
| 743 | this._store2model(); |
---|
| 744 | } |
---|
| 745 | |
---|
| 746 | // monitor changes to items |
---|
| 747 | this.connect(this.model, "onChange", "_onItemChange"); |
---|
| 748 | this.connect(this.model, "onChildrenChange", "_onItemChildrenChange"); |
---|
| 749 | this.connect(this.model, "onDelete", "_onItemDelete"); |
---|
| 750 | |
---|
| 751 | this._load(); |
---|
| 752 | |
---|
| 753 | this.inherited(arguments); |
---|
| 754 | |
---|
| 755 | if(this.dndController){ |
---|
| 756 | if(lang.isString(this.dndController)){ |
---|
| 757 | this.dndController = lang.getObject(this.dndController); |
---|
| 758 | } |
---|
| 759 | var params={}; |
---|
| 760 | for(var i=0; i<this.dndParams.length;i++){ |
---|
| 761 | if(this[this.dndParams[i]]){ |
---|
| 762 | params[this.dndParams[i]] = this[this.dndParams[i]]; |
---|
| 763 | } |
---|
| 764 | } |
---|
| 765 | this.dndController = new this.dndController(this, params); |
---|
| 766 | } |
---|
| 767 | }, |
---|
| 768 | |
---|
| 769 | _store2model: function(){ |
---|
| 770 | // summary: |
---|
| 771 | // User specified a store&query rather than model, so create model from store/query |
---|
| 772 | this._v10Compat = true; |
---|
| 773 | kernel.deprecated("Tree: from version 2.0, should specify a model object rather than a store/query"); |
---|
| 774 | |
---|
| 775 | var modelParams = { |
---|
| 776 | id: this.id + "_ForestStoreModel", |
---|
| 777 | store: this.store, |
---|
| 778 | query: this.query, |
---|
| 779 | childrenAttrs: this.childrenAttr |
---|
| 780 | }; |
---|
| 781 | |
---|
| 782 | // Only override the model's mayHaveChildren() method if the user has specified an override |
---|
| 783 | if(this.params.mayHaveChildren){ |
---|
| 784 | modelParams.mayHaveChildren = lang.hitch(this, "mayHaveChildren"); |
---|
| 785 | } |
---|
| 786 | |
---|
| 787 | if(this.params.getItemChildren){ |
---|
| 788 | modelParams.getChildren = lang.hitch(this, function(item, onComplete, onError){ |
---|
| 789 | this.getItemChildren((this._v10Compat && item === this.model.root) ? null : item, onComplete, onError); |
---|
| 790 | }); |
---|
| 791 | } |
---|
| 792 | this.model = new ForestStoreModel(modelParams); |
---|
| 793 | |
---|
| 794 | // For backwards compatibility, the visibility of the root node is controlled by |
---|
| 795 | // whether or not the user has specified a label |
---|
| 796 | this.showRoot = Boolean(this.label); |
---|
| 797 | }, |
---|
| 798 | |
---|
| 799 | onLoad: function(){ |
---|
| 800 | // summary: |
---|
| 801 | // Called when tree finishes loading and expanding. |
---|
| 802 | // description: |
---|
| 803 | // If persist == true the loading may encompass many levels of fetches |
---|
| 804 | // from the data store, each asynchronous. Waits for all to finish. |
---|
| 805 | // tags: |
---|
| 806 | // callback |
---|
| 807 | }, |
---|
| 808 | |
---|
| 809 | _load: function(){ |
---|
| 810 | // summary: |
---|
| 811 | // Initial load of the tree. |
---|
| 812 | // Load root node (possibly hidden) and it's children. |
---|
| 813 | this.model.getRoot( |
---|
| 814 | lang.hitch(this, function(item){ |
---|
| 815 | var rn = (this.rootNode = this.tree._createTreeNode({ |
---|
| 816 | item: item, |
---|
| 817 | tree: this, |
---|
| 818 | isExpandable: true, |
---|
| 819 | label: this.label || this.getLabel(item), |
---|
| 820 | textDir: this.textDir, |
---|
| 821 | indent: this.showRoot ? 0 : -1 |
---|
| 822 | })); |
---|
| 823 | if(!this.showRoot){ |
---|
| 824 | rn.rowNode.style.display="none"; |
---|
| 825 | // if root is not visible, move tree role to the invisible |
---|
| 826 | // root node's containerNode, see #12135 |
---|
| 827 | this.domNode.setAttribute("role", "presentation"); |
---|
| 828 | |
---|
| 829 | rn.labelNode.setAttribute("role", "presentation"); |
---|
| 830 | rn.containerNode.setAttribute("role", "tree"); |
---|
| 831 | } |
---|
| 832 | this.domNode.appendChild(rn.domNode); |
---|
| 833 | var identity = this.model.getIdentity(item); |
---|
| 834 | if(this._itemNodesMap[identity]){ |
---|
| 835 | this._itemNodesMap[identity].push(rn); |
---|
| 836 | }else{ |
---|
| 837 | this._itemNodesMap[identity] = [rn]; |
---|
| 838 | } |
---|
| 839 | |
---|
| 840 | rn._updateLayout(); // sets "dijitTreeIsRoot" CSS classname |
---|
| 841 | |
---|
| 842 | // load top level children and then fire onLoad() event |
---|
| 843 | this._expandNode(rn).addCallback(lang.hitch(this, function(){ |
---|
| 844 | this._loadDeferred.callback(true); |
---|
| 845 | this.onLoad(); |
---|
| 846 | })); |
---|
| 847 | }), |
---|
| 848 | function(err){ |
---|
| 849 | console.error(this, ": error loading root: ", err); |
---|
| 850 | } |
---|
| 851 | ); |
---|
| 852 | }, |
---|
| 853 | |
---|
| 854 | getNodesByItem: function(/*Item or id*/ item){ |
---|
| 855 | // summary: |
---|
| 856 | // Returns all tree nodes that refer to an item |
---|
| 857 | // returns: |
---|
| 858 | // Array of tree nodes that refer to passed item |
---|
| 859 | |
---|
| 860 | if(!item){ return []; } |
---|
| 861 | var identity = lang.isString(item) ? item : this.model.getIdentity(item); |
---|
| 862 | // return a copy so widget don't get messed up by changes to returned array |
---|
| 863 | return [].concat(this._itemNodesMap[identity]); |
---|
| 864 | }, |
---|
| 865 | |
---|
| 866 | _setSelectedItemAttr: function(/*Item or id*/ item){ |
---|
| 867 | this.set('selectedItems', [item]); |
---|
| 868 | }, |
---|
| 869 | |
---|
| 870 | _setSelectedItemsAttr: function(/*Items or ids*/ items){ |
---|
| 871 | // summary: |
---|
| 872 | // Select tree nodes related to passed items. |
---|
| 873 | // WARNING: if model use multi-parented items or desired tree node isn't already loaded |
---|
| 874 | // behavior is undefined. Use set('paths', ...) instead. |
---|
| 875 | var tree = this; |
---|
| 876 | this._loadDeferred.addCallback( lang.hitch(this, function(){ |
---|
| 877 | var identities = array.map(items, function(item){ |
---|
| 878 | return (!item || lang.isString(item)) ? item : tree.model.getIdentity(item); |
---|
| 879 | }); |
---|
| 880 | var nodes = []; |
---|
| 881 | array.forEach(identities, function(id){ |
---|
| 882 | nodes = nodes.concat(tree._itemNodesMap[id] || []); |
---|
| 883 | }); |
---|
| 884 | this.set('selectedNodes', nodes); |
---|
| 885 | })); |
---|
| 886 | }, |
---|
| 887 | |
---|
| 888 | _setPathAttr: function(/*Item[] || String[]*/ path){ |
---|
| 889 | // summary: |
---|
| 890 | // Singular variant of _setPathsAttr |
---|
| 891 | if(path.length){ |
---|
| 892 | return this.set("paths", [path]); |
---|
| 893 | }else{ |
---|
| 894 | // Empty list is interpreted as "select nothing" |
---|
| 895 | return this.set("paths", []); |
---|
| 896 | } |
---|
| 897 | }, |
---|
| 898 | |
---|
| 899 | _setPathsAttr: function(/*Item[][] || String[][]*/ paths){ |
---|
| 900 | // summary: |
---|
| 901 | // Select the tree nodes identified by passed paths. |
---|
| 902 | // paths: |
---|
| 903 | // Array of arrays of items or item id's |
---|
| 904 | // returns: |
---|
| 905 | // Deferred to indicate when the set is complete |
---|
| 906 | var tree = this; |
---|
| 907 | |
---|
| 908 | // We may need to wait for some nodes to expand, so setting |
---|
| 909 | // each path will involve a Deferred. We bring those deferreds |
---|
| 910 | // together witha DeferredList. |
---|
| 911 | return new DeferredList(array.map(paths, function(path){ |
---|
| 912 | var d = new Deferred(); |
---|
| 913 | |
---|
| 914 | // normalize path to use identity |
---|
| 915 | path = array.map(path, function(item){ |
---|
| 916 | return lang.isString(item) ? item : tree.model.getIdentity(item); |
---|
| 917 | }); |
---|
| 918 | |
---|
| 919 | if(path.length){ |
---|
| 920 | // Wait for the tree to load, if it hasn't already. |
---|
| 921 | tree._loadDeferred.addCallback(function(){ selectPath(path, [tree.rootNode], d); }); |
---|
| 922 | }else{ |
---|
| 923 | d.errback("Empty path"); |
---|
| 924 | } |
---|
| 925 | return d; |
---|
| 926 | })).addCallback(setNodes); |
---|
| 927 | |
---|
| 928 | function selectPath(path, nodes, def){ |
---|
| 929 | // Traverse path; the next path component should be among "nodes". |
---|
| 930 | var nextPath = path.shift(); |
---|
| 931 | var nextNode = array.filter(nodes, function(node){ |
---|
| 932 | return node.getIdentity() == nextPath; |
---|
| 933 | })[0]; |
---|
| 934 | if(!!nextNode){ |
---|
| 935 | if(path.length){ |
---|
| 936 | tree._expandNode(nextNode).addCallback(function(){ selectPath(path, nextNode.getChildren(), def); }); |
---|
| 937 | }else{ |
---|
| 938 | //Successfully reached the end of this path |
---|
| 939 | def.callback(nextNode); |
---|
| 940 | } |
---|
| 941 | }else{ |
---|
| 942 | def.errback("Could not expand path at " + nextPath); |
---|
| 943 | } |
---|
| 944 | } |
---|
| 945 | |
---|
| 946 | function setNodes(newNodes){ |
---|
| 947 | //After all expansion is finished, set the selection to |
---|
| 948 | //the set of nodes successfully found. |
---|
| 949 | tree.set("selectedNodes", array.map( |
---|
| 950 | array.filter(newNodes,function(x){return x[0];}), |
---|
| 951 | function(x){return x[1];})); |
---|
| 952 | } |
---|
| 953 | }, |
---|
| 954 | |
---|
| 955 | _setSelectedNodeAttr: function(node){ |
---|
| 956 | this.set('selectedNodes', [node]); |
---|
| 957 | }, |
---|
| 958 | _setSelectedNodesAttr: function(nodes){ |
---|
| 959 | this._loadDeferred.addCallback( lang.hitch(this, function(){ |
---|
| 960 | this.dndController.setSelection(nodes); |
---|
| 961 | })); |
---|
| 962 | }, |
---|
| 963 | |
---|
| 964 | |
---|
| 965 | ////////////// Data store related functions ////////////////////// |
---|
| 966 | // These just get passed to the model; they are here for back-compat |
---|
| 967 | |
---|
| 968 | mayHaveChildren: function(/*dojo.data.Item*/ /*===== item =====*/){ |
---|
| 969 | // summary: |
---|
| 970 | // Deprecated. This should be specified on the model itself. |
---|
| 971 | // |
---|
| 972 | // Overridable function to tell if an item has or may have children. |
---|
| 973 | // Controls whether or not +/- expando icon is shown. |
---|
| 974 | // (For efficiency reasons we may not want to check if an element actually |
---|
| 975 | // has children until user clicks the expando node) |
---|
| 976 | // tags: |
---|
| 977 | // deprecated |
---|
| 978 | }, |
---|
| 979 | |
---|
| 980 | getItemChildren: function(/*===== parentItem, onComplete =====*/){ |
---|
| 981 | // summary: |
---|
| 982 | // Deprecated. This should be specified on the model itself. |
---|
| 983 | // |
---|
| 984 | // Overridable function that return array of child items of given parent item, |
---|
| 985 | // or if parentItem==null then return top items in tree |
---|
| 986 | // tags: |
---|
| 987 | // deprecated |
---|
| 988 | }, |
---|
| 989 | |
---|
| 990 | /////////////////////////////////////////////////////// |
---|
| 991 | // Functions for converting an item to a TreeNode |
---|
| 992 | getLabel: function(/*dojo.data.Item*/ item){ |
---|
| 993 | // summary: |
---|
| 994 | // Overridable function to get the label for a tree node (given the item) |
---|
| 995 | // tags: |
---|
| 996 | // extension |
---|
| 997 | return this.model.getLabel(item); // String |
---|
| 998 | }, |
---|
| 999 | |
---|
| 1000 | getIconClass: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){ |
---|
| 1001 | // summary: |
---|
| 1002 | // Overridable function to return CSS class name to display icon |
---|
| 1003 | // tags: |
---|
| 1004 | // extension |
---|
| 1005 | return (!item || this.model.mayHaveChildren(item)) ? (opened ? "dijitFolderOpened" : "dijitFolderClosed") : "dijitLeaf" |
---|
| 1006 | }, |
---|
| 1007 | |
---|
| 1008 | getLabelClass: function(/*===== item, opened =====*/){ |
---|
| 1009 | // summary: |
---|
| 1010 | // Overridable function to return CSS class name to display label |
---|
| 1011 | // item: dojo.data.Item |
---|
| 1012 | // opened: Boolean |
---|
| 1013 | // returns: String |
---|
| 1014 | // CSS class name |
---|
| 1015 | // tags: |
---|
| 1016 | // extension |
---|
| 1017 | }, |
---|
| 1018 | |
---|
| 1019 | getRowClass: function(/*===== item, opened =====*/){ |
---|
| 1020 | // summary: |
---|
| 1021 | // Overridable function to return CSS class name to display row |
---|
| 1022 | // item: dojo.data.Item |
---|
| 1023 | // opened: Boolean |
---|
| 1024 | // returns: String |
---|
| 1025 | // CSS class name |
---|
| 1026 | // tags: |
---|
| 1027 | // extension |
---|
| 1028 | }, |
---|
| 1029 | |
---|
| 1030 | getIconStyle: function(/*===== item, opened =====*/){ |
---|
| 1031 | // summary: |
---|
| 1032 | // Overridable function to return CSS styles to display icon |
---|
| 1033 | // item: dojo.data.Item |
---|
| 1034 | // opened: Boolean |
---|
| 1035 | // returns: Object |
---|
| 1036 | // Object suitable for input to dojo.style() like {backgroundImage: "url(...)"} |
---|
| 1037 | // tags: |
---|
| 1038 | // extension |
---|
| 1039 | }, |
---|
| 1040 | |
---|
| 1041 | getLabelStyle: function(/*===== item, opened =====*/){ |
---|
| 1042 | // summary: |
---|
| 1043 | // Overridable function to return CSS styles to display label |
---|
| 1044 | // item: dojo.data.Item |
---|
| 1045 | // opened: Boolean |
---|
| 1046 | // returns: |
---|
| 1047 | // Object suitable for input to dojo.style() like {color: "red", background: "green"} |
---|
| 1048 | // tags: |
---|
| 1049 | // extension |
---|
| 1050 | }, |
---|
| 1051 | |
---|
| 1052 | getRowStyle: function(/*===== item, opened =====*/){ |
---|
| 1053 | // summary: |
---|
| 1054 | // Overridable function to return CSS styles to display row |
---|
| 1055 | // item: dojo.data.Item |
---|
| 1056 | // opened: Boolean |
---|
| 1057 | // returns: |
---|
| 1058 | // Object suitable for input to dojo.style() like {background-color: "#bbb"} |
---|
| 1059 | // tags: |
---|
| 1060 | // extension |
---|
| 1061 | }, |
---|
| 1062 | |
---|
| 1063 | getTooltip: function(/*dojo.data.Item*/ /*===== item =====*/){ |
---|
| 1064 | // summary: |
---|
| 1065 | // Overridable function to get the tooltip for a tree node (given the item) |
---|
| 1066 | // tags: |
---|
| 1067 | // extension |
---|
| 1068 | return ""; // String |
---|
| 1069 | }, |
---|
| 1070 | |
---|
| 1071 | /////////// Keyboard and Mouse handlers //////////////////// |
---|
| 1072 | |
---|
| 1073 | _onKeyPress: function(/*Event*/ e){ |
---|
| 1074 | // summary: |
---|
| 1075 | // Translates keypress events into commands for the controller |
---|
| 1076 | if(e.altKey){ return; } |
---|
| 1077 | var treeNode = registry.getEnclosingWidget(e.target); |
---|
| 1078 | if(!treeNode){ return; } |
---|
| 1079 | |
---|
| 1080 | var key = e.charOrCode; |
---|
| 1081 | if(typeof key == "string" && key != " "){ // handle printables (letter navigation) |
---|
| 1082 | // Check for key navigation. |
---|
| 1083 | if(!e.altKey && !e.ctrlKey && !e.shiftKey && !e.metaKey){ |
---|
| 1084 | this._onLetterKeyNav( { node: treeNode, key: key.toLowerCase() } ); |
---|
| 1085 | event.stop(e); |
---|
| 1086 | } |
---|
| 1087 | }else{ // handle non-printables (arrow keys) |
---|
| 1088 | // clear record of recent printables (being saved for multi-char letter navigation), |
---|
| 1089 | // because "a", down-arrow, "b" shouldn't search for "ab" |
---|
| 1090 | if(this._curSearch){ |
---|
| 1091 | clearTimeout(this._curSearch.timer); |
---|
| 1092 | delete this._curSearch; |
---|
| 1093 | } |
---|
| 1094 | |
---|
| 1095 | var map = this._keyHandlerMap; |
---|
| 1096 | if(!map){ |
---|
| 1097 | // setup table mapping keys to events |
---|
| 1098 | map = {}; |
---|
| 1099 | map[keys.ENTER]="_onEnterKey"; |
---|
| 1100 | //On WebKit based browsers, the combination ctrl-enter |
---|
| 1101 | //does not get passed through. To allow accessible |
---|
| 1102 | //multi-select on those browsers, the space key is |
---|
| 1103 | //also used for selection. |
---|
| 1104 | map[keys.SPACE]= map[" "] = "_onEnterKey"; |
---|
| 1105 | map[this.isLeftToRight() ? keys.LEFT_ARROW : keys.RIGHT_ARROW]="_onLeftArrow"; |
---|
| 1106 | map[this.isLeftToRight() ? keys.RIGHT_ARROW : keys.LEFT_ARROW]="_onRightArrow"; |
---|
| 1107 | map[keys.UP_ARROW]="_onUpArrow"; |
---|
| 1108 | map[keys.DOWN_ARROW]="_onDownArrow"; |
---|
| 1109 | map[keys.HOME]="_onHomeKey"; |
---|
| 1110 | map[keys.END]="_onEndKey"; |
---|
| 1111 | this._keyHandlerMap = map; |
---|
| 1112 | } |
---|
| 1113 | if(this._keyHandlerMap[key]){ |
---|
| 1114 | this[this._keyHandlerMap[key]]( { node: treeNode, item: treeNode.item, evt: e } ); |
---|
| 1115 | event.stop(e); |
---|
| 1116 | } |
---|
| 1117 | } |
---|
| 1118 | }, |
---|
| 1119 | |
---|
| 1120 | _onEnterKey: function(/*Object*/ message){ |
---|
| 1121 | this._publish("execute", { item: message.item, node: message.node } ); |
---|
| 1122 | this.dndController.userSelect(message.node, connect.isCopyKey( message.evt ), message.evt.shiftKey); |
---|
| 1123 | this.onClick(message.item, message.node, message.evt); |
---|
| 1124 | }, |
---|
| 1125 | |
---|
| 1126 | _onDownArrow: function(/*Object*/ message){ |
---|
| 1127 | // summary: |
---|
| 1128 | // down arrow pressed; get next visible node, set focus there |
---|
| 1129 | var node = this._getNextNode(message.node); |
---|
| 1130 | if(node && node.isTreeNode){ |
---|
| 1131 | this.focusNode(node); |
---|
| 1132 | } |
---|
| 1133 | }, |
---|
| 1134 | |
---|
| 1135 | _onUpArrow: function(/*Object*/ message){ |
---|
| 1136 | // summary: |
---|
| 1137 | // Up arrow pressed; move to previous visible node |
---|
| 1138 | |
---|
| 1139 | var node = message.node; |
---|
| 1140 | |
---|
| 1141 | // if younger siblings |
---|
| 1142 | var previousSibling = node.getPreviousSibling(); |
---|
| 1143 | if(previousSibling){ |
---|
| 1144 | node = previousSibling; |
---|
| 1145 | // if the previous node is expanded, dive in deep |
---|
| 1146 | while(node.isExpandable && node.isExpanded && node.hasChildren()){ |
---|
| 1147 | // move to the last child |
---|
| 1148 | var children = node.getChildren(); |
---|
| 1149 | node = children[children.length-1]; |
---|
| 1150 | } |
---|
| 1151 | }else{ |
---|
| 1152 | // if this is the first child, return the parent |
---|
| 1153 | // unless the parent is the root of a tree with a hidden root |
---|
| 1154 | var parent = node.getParent(); |
---|
| 1155 | if(!(!this.showRoot && parent === this.rootNode)){ |
---|
| 1156 | node = parent; |
---|
| 1157 | } |
---|
| 1158 | } |
---|
| 1159 | |
---|
| 1160 | if(node && node.isTreeNode){ |
---|
| 1161 | this.focusNode(node); |
---|
| 1162 | } |
---|
| 1163 | }, |
---|
| 1164 | |
---|
| 1165 | _onRightArrow: function(/*Object*/ message){ |
---|
| 1166 | // summary: |
---|
| 1167 | // Right arrow pressed; go to child node |
---|
| 1168 | var node = message.node; |
---|
| 1169 | |
---|
| 1170 | // if not expanded, expand, else move to 1st child |
---|
| 1171 | if(node.isExpandable && !node.isExpanded){ |
---|
| 1172 | this._expandNode(node); |
---|
| 1173 | }else if(node.hasChildren()){ |
---|
| 1174 | node = node.getChildren()[0]; |
---|
| 1175 | if(node && node.isTreeNode){ |
---|
| 1176 | this.focusNode(node); |
---|
| 1177 | } |
---|
| 1178 | } |
---|
| 1179 | }, |
---|
| 1180 | |
---|
| 1181 | _onLeftArrow: function(/*Object*/ message){ |
---|
| 1182 | // summary: |
---|
| 1183 | // Left arrow pressed. |
---|
| 1184 | // If not collapsed, collapse, else move to parent. |
---|
| 1185 | |
---|
| 1186 | var node = message.node; |
---|
| 1187 | |
---|
| 1188 | if(node.isExpandable && node.isExpanded){ |
---|
| 1189 | this._collapseNode(node); |
---|
| 1190 | }else{ |
---|
| 1191 | var parent = node.getParent(); |
---|
| 1192 | if(parent && parent.isTreeNode && !(!this.showRoot && parent === this.rootNode)){ |
---|
| 1193 | this.focusNode(parent); |
---|
| 1194 | } |
---|
| 1195 | } |
---|
| 1196 | }, |
---|
| 1197 | |
---|
| 1198 | _onHomeKey: function(){ |
---|
| 1199 | // summary: |
---|
| 1200 | // Home key pressed; get first visible node, and set focus there |
---|
| 1201 | var node = this._getRootOrFirstNode(); |
---|
| 1202 | if(node){ |
---|
| 1203 | this.focusNode(node); |
---|
| 1204 | } |
---|
| 1205 | }, |
---|
| 1206 | |
---|
| 1207 | _onEndKey: function(){ |
---|
| 1208 | // summary: |
---|
| 1209 | // End key pressed; go to last visible node. |
---|
| 1210 | |
---|
| 1211 | var node = this.rootNode; |
---|
| 1212 | while(node.isExpanded){ |
---|
| 1213 | var c = node.getChildren(); |
---|
| 1214 | node = c[c.length - 1]; |
---|
| 1215 | } |
---|
| 1216 | |
---|
| 1217 | if(node && node.isTreeNode){ |
---|
| 1218 | this.focusNode(node); |
---|
| 1219 | } |
---|
| 1220 | }, |
---|
| 1221 | |
---|
| 1222 | // multiCharSearchDuration: Number |
---|
| 1223 | // If multiple characters are typed where each keystroke happens within |
---|
| 1224 | // multiCharSearchDuration of the previous keystroke, |
---|
| 1225 | // search for nodes matching all the keystrokes. |
---|
| 1226 | // |
---|
| 1227 | // For example, typing "ab" will search for entries starting with |
---|
| 1228 | // "ab" unless the delay between "a" and "b" is greater than multiCharSearchDuration. |
---|
| 1229 | multiCharSearchDuration: 250, |
---|
| 1230 | |
---|
| 1231 | _onLetterKeyNav: function(message){ |
---|
| 1232 | // summary: |
---|
| 1233 | // Called when user presses a prinatable key; search for node starting with recently typed letters. |
---|
| 1234 | // message: Object |
---|
| 1235 | // Like { node: TreeNode, key: 'a' } where key is the key the user pressed. |
---|
| 1236 | |
---|
| 1237 | // Branch depending on whether this key starts a new search, or modifies an existing search |
---|
| 1238 | var cs = this._curSearch; |
---|
| 1239 | if(cs){ |
---|
| 1240 | // We are continuing a search. Ex: user has pressed 'a', and now has pressed |
---|
| 1241 | // 'b', so we want to search for nodes starting w/"ab". |
---|
| 1242 | cs.pattern = cs.pattern + message.key; |
---|
| 1243 | clearTimeout(cs.timer); |
---|
| 1244 | }else{ |
---|
| 1245 | // We are starting a new search |
---|
| 1246 | cs = this._curSearch = { |
---|
| 1247 | pattern: message.key, |
---|
| 1248 | startNode: message.node |
---|
| 1249 | }; |
---|
| 1250 | } |
---|
| 1251 | |
---|
| 1252 | // set/reset timer to forget recent keystrokes |
---|
| 1253 | var self = this; |
---|
| 1254 | cs.timer = setTimeout(function(){ |
---|
| 1255 | delete self._curSearch; |
---|
| 1256 | }, this.multiCharSearchDuration); |
---|
| 1257 | |
---|
| 1258 | // Navigate to TreeNode matching keystrokes [entered so far]. |
---|
| 1259 | var node = cs.startNode; |
---|
| 1260 | do{ |
---|
| 1261 | node = this._getNextNode(node); |
---|
| 1262 | //check for last node, jump to first node if necessary |
---|
| 1263 | if(!node){ |
---|
| 1264 | node = this._getRootOrFirstNode(); |
---|
| 1265 | } |
---|
| 1266 | }while(node !== cs.startNode && (node.label.toLowerCase().substr(0, cs.pattern.length) != cs.pattern)); |
---|
| 1267 | if(node && node.isTreeNode){ |
---|
| 1268 | // no need to set focus if back where we started |
---|
| 1269 | if(node !== cs.startNode){ |
---|
| 1270 | this.focusNode(node); |
---|
| 1271 | } |
---|
| 1272 | } |
---|
| 1273 | }, |
---|
| 1274 | |
---|
| 1275 | isExpandoNode: function(node, widget){ |
---|
| 1276 | // summary: |
---|
| 1277 | // check whether a dom node is the expandoNode for a particular TreeNode widget |
---|
| 1278 | return dom.isDescendant(node, widget.expandoNode); |
---|
| 1279 | }, |
---|
| 1280 | _onClick: function(/*TreeNode*/ nodeWidget, /*Event*/ e){ |
---|
| 1281 | // summary: |
---|
| 1282 | // Translates click events into commands for the controller to process |
---|
| 1283 | |
---|
| 1284 | var domElement = e.target, |
---|
| 1285 | isExpandoClick = this.isExpandoNode(domElement, nodeWidget); |
---|
| 1286 | |
---|
| 1287 | if( (this.openOnClick && nodeWidget.isExpandable) || isExpandoClick ){ |
---|
| 1288 | // expando node was clicked, or label of a folder node was clicked; open it |
---|
| 1289 | if(nodeWidget.isExpandable){ |
---|
| 1290 | this._onExpandoClick({node:nodeWidget}); |
---|
| 1291 | } |
---|
| 1292 | }else{ |
---|
| 1293 | this._publish("execute", { item: nodeWidget.item, node: nodeWidget, evt: e } ); |
---|
| 1294 | this.onClick(nodeWidget.item, nodeWidget, e); |
---|
| 1295 | this.focusNode(nodeWidget); |
---|
| 1296 | } |
---|
| 1297 | event.stop(e); |
---|
| 1298 | }, |
---|
| 1299 | _onDblClick: function(/*TreeNode*/ nodeWidget, /*Event*/ e){ |
---|
| 1300 | // summary: |
---|
| 1301 | // Translates double-click events into commands for the controller to process |
---|
| 1302 | |
---|
| 1303 | var domElement = e.target, |
---|
| 1304 | isExpandoClick = (domElement == nodeWidget.expandoNode || domElement == nodeWidget.expandoNodeText); |
---|
| 1305 | |
---|
| 1306 | if( (this.openOnDblClick && nodeWidget.isExpandable) ||isExpandoClick ){ |
---|
| 1307 | // expando node was clicked, or label of a folder node was clicked; open it |
---|
| 1308 | if(nodeWidget.isExpandable){ |
---|
| 1309 | this._onExpandoClick({node:nodeWidget}); |
---|
| 1310 | } |
---|
| 1311 | }else{ |
---|
| 1312 | this._publish("execute", { item: nodeWidget.item, node: nodeWidget, evt: e } ); |
---|
| 1313 | this.onDblClick(nodeWidget.item, nodeWidget, e); |
---|
| 1314 | this.focusNode(nodeWidget); |
---|
| 1315 | } |
---|
| 1316 | event.stop(e); |
---|
| 1317 | }, |
---|
| 1318 | |
---|
| 1319 | _onExpandoClick: function(/*Object*/ message){ |
---|
| 1320 | // summary: |
---|
| 1321 | // User clicked the +/- icon; expand or collapse my children. |
---|
| 1322 | var node = message.node; |
---|
| 1323 | |
---|
| 1324 | // If we are collapsing, we might be hiding the currently focused node. |
---|
| 1325 | // Also, clicking the expando node might have erased focus from the current node. |
---|
| 1326 | // For simplicity's sake just focus on the node with the expando. |
---|
| 1327 | this.focusNode(node); |
---|
| 1328 | |
---|
| 1329 | if(node.isExpanded){ |
---|
| 1330 | this._collapseNode(node); |
---|
| 1331 | }else{ |
---|
| 1332 | this._expandNode(node); |
---|
| 1333 | } |
---|
| 1334 | }, |
---|
| 1335 | |
---|
| 1336 | onClick: function(/*===== item, node, evt =====*/){ |
---|
| 1337 | // summary: |
---|
| 1338 | // Callback when a tree node is clicked |
---|
| 1339 | // item: dojo.data.Item |
---|
| 1340 | // node: TreeNode |
---|
| 1341 | // evt: Event |
---|
| 1342 | // tags: |
---|
| 1343 | // callback |
---|
| 1344 | }, |
---|
| 1345 | onDblClick: function(/*===== item, node, evt =====*/){ |
---|
| 1346 | // summary: |
---|
| 1347 | // Callback when a tree node is double-clicked |
---|
| 1348 | // item: dojo.data.Item |
---|
| 1349 | // node: TreeNode |
---|
| 1350 | // evt: Event |
---|
| 1351 | // tags: |
---|
| 1352 | // callback |
---|
| 1353 | }, |
---|
| 1354 | onOpen: function(/*===== item, node =====*/){ |
---|
| 1355 | // summary: |
---|
| 1356 | // Callback when a node is opened |
---|
| 1357 | // item: dojo.data.Item |
---|
| 1358 | // node: TreeNode |
---|
| 1359 | // tags: |
---|
| 1360 | // callback |
---|
| 1361 | }, |
---|
| 1362 | onClose: function(/*===== item, node =====*/){ |
---|
| 1363 | // summary: |
---|
| 1364 | // Callback when a node is closed |
---|
| 1365 | // item: dojo.data.Item |
---|
| 1366 | // node: TreeNode |
---|
| 1367 | // tags: |
---|
| 1368 | // callback |
---|
| 1369 | }, |
---|
| 1370 | |
---|
| 1371 | _getNextNode: function(node){ |
---|
| 1372 | // summary: |
---|
| 1373 | // Get next visible node |
---|
| 1374 | |
---|
| 1375 | if(node.isExpandable && node.isExpanded && node.hasChildren()){ |
---|
| 1376 | // if this is an expanded node, get the first child |
---|
| 1377 | return node.getChildren()[0]; // _TreeNode |
---|
| 1378 | }else{ |
---|
| 1379 | // find a parent node with a sibling |
---|
| 1380 | while(node && node.isTreeNode){ |
---|
| 1381 | var returnNode = node.getNextSibling(); |
---|
| 1382 | if(returnNode){ |
---|
| 1383 | return returnNode; // _TreeNode |
---|
| 1384 | } |
---|
| 1385 | node = node.getParent(); |
---|
| 1386 | } |
---|
| 1387 | return null; |
---|
| 1388 | } |
---|
| 1389 | }, |
---|
| 1390 | |
---|
| 1391 | _getRootOrFirstNode: function(){ |
---|
| 1392 | // summary: |
---|
| 1393 | // Get first visible node |
---|
| 1394 | return this.showRoot ? this.rootNode : this.rootNode.getChildren()[0]; |
---|
| 1395 | }, |
---|
| 1396 | |
---|
| 1397 | _collapseNode: function(/*_TreeNode*/ node){ |
---|
| 1398 | // summary: |
---|
| 1399 | // Called when the user has requested to collapse the node |
---|
| 1400 | |
---|
| 1401 | if(node._expandNodeDeferred){ |
---|
| 1402 | delete node._expandNodeDeferred; |
---|
| 1403 | } |
---|
| 1404 | |
---|
| 1405 | if(node.isExpandable){ |
---|
| 1406 | if(node.state == "LOADING"){ |
---|
| 1407 | // ignore clicks while we are in the process of loading data |
---|
| 1408 | return; |
---|
| 1409 | } |
---|
| 1410 | |
---|
| 1411 | node.collapse(); |
---|
| 1412 | this.onClose(node.item, node); |
---|
| 1413 | |
---|
| 1414 | this._state(node, false); |
---|
| 1415 | } |
---|
| 1416 | }, |
---|
| 1417 | |
---|
| 1418 | _expandNode: function(/*_TreeNode*/ node, /*Boolean?*/ recursive){ |
---|
| 1419 | // summary: |
---|
| 1420 | // Called when the user has requested to expand the node |
---|
| 1421 | // recursive: |
---|
| 1422 | // Internal flag used when _expandNode() calls itself, don't set. |
---|
| 1423 | // returns: |
---|
| 1424 | // Deferred that fires when the node is loaded and opened and (if persist=true) all it's descendants |
---|
| 1425 | // that were previously opened too |
---|
| 1426 | |
---|
| 1427 | if(node._expandNodeDeferred && !recursive){ |
---|
| 1428 | // there's already an expand in progress (or completed), so just return |
---|
| 1429 | return node._expandNodeDeferred; // dojo.Deferred |
---|
| 1430 | } |
---|
| 1431 | |
---|
| 1432 | var model = this.model, |
---|
| 1433 | item = node.item, |
---|
| 1434 | _this = this; |
---|
| 1435 | |
---|
| 1436 | switch(node.state){ |
---|
| 1437 | case "UNCHECKED": |
---|
| 1438 | // need to load all the children, and then expand |
---|
| 1439 | node.markProcessing(); |
---|
| 1440 | |
---|
| 1441 | // Setup deferred to signal when the load and expand are finished. |
---|
| 1442 | // Save that deferred in this._expandDeferred as a flag that operation is in progress. |
---|
| 1443 | var def = (node._expandNodeDeferred = new Deferred()); |
---|
| 1444 | |
---|
| 1445 | // Get the children |
---|
| 1446 | model.getChildren( |
---|
| 1447 | item, |
---|
| 1448 | function(items){ |
---|
| 1449 | node.unmarkProcessing(); |
---|
| 1450 | |
---|
| 1451 | // Display the children and also start expanding any children that were previously expanded |
---|
| 1452 | // (if this.persist == true). The returned Deferred will fire when those expansions finish. |
---|
| 1453 | var scid = node.setChildItems(items); |
---|
| 1454 | |
---|
| 1455 | // Call _expandNode() again but this time it will just to do the animation (default branch). |
---|
| 1456 | // The returned Deferred will fire when the animation completes. |
---|
| 1457 | // TODO: seems like I can avoid recursion and just use a deferred to sequence the events? |
---|
| 1458 | var ed = _this._expandNode(node, true); |
---|
| 1459 | |
---|
| 1460 | // After the above two tasks (setChildItems() and recursive _expandNode()) finish, |
---|
| 1461 | // signal that I am done. |
---|
| 1462 | scid.addCallback(function(){ |
---|
| 1463 | ed.addCallback(function(){ |
---|
| 1464 | def.callback(); |
---|
| 1465 | }) |
---|
| 1466 | }); |
---|
| 1467 | }, |
---|
| 1468 | function(err){ |
---|
| 1469 | console.error(_this, ": error loading root children: ", err); |
---|
| 1470 | } |
---|
| 1471 | ); |
---|
| 1472 | break; |
---|
| 1473 | |
---|
| 1474 | default: // "LOADED" |
---|
| 1475 | // data is already loaded; just expand node |
---|
| 1476 | def = (node._expandNodeDeferred = node.expand()); |
---|
| 1477 | |
---|
| 1478 | this.onOpen(node.item, node); |
---|
| 1479 | |
---|
| 1480 | this._state(node, true); |
---|
| 1481 | } |
---|
| 1482 | |
---|
| 1483 | return def; // dojo.Deferred |
---|
| 1484 | }, |
---|
| 1485 | |
---|
| 1486 | ////////////////// Miscellaneous functions //////////////// |
---|
| 1487 | |
---|
| 1488 | focusNode: function(/* _tree.Node */ node){ |
---|
| 1489 | // summary: |
---|
| 1490 | // Focus on the specified node (which must be visible) |
---|
| 1491 | // tags: |
---|
| 1492 | // protected |
---|
| 1493 | |
---|
| 1494 | // set focus so that the label will be voiced using screen readers |
---|
| 1495 | focus.focus(node.labelNode); |
---|
| 1496 | }, |
---|
| 1497 | |
---|
| 1498 | _onNodeFocus: function(/*dijit._Widget*/ node){ |
---|
| 1499 | // summary: |
---|
| 1500 | // Called when a TreeNode gets focus, either by user clicking |
---|
| 1501 | // it, or programatically by arrow key handling code. |
---|
| 1502 | // description: |
---|
| 1503 | // It marks that the current node is the selected one, and the previously |
---|
| 1504 | // selected node no longer is. |
---|
| 1505 | |
---|
| 1506 | if(node && node != this.lastFocused){ |
---|
| 1507 | if(this.lastFocused && !this.lastFocused._destroyed){ |
---|
| 1508 | // mark that the previously focsable node is no longer focusable |
---|
| 1509 | this.lastFocused.setFocusable(false); |
---|
| 1510 | } |
---|
| 1511 | |
---|
| 1512 | // mark that the new node is the currently selected one |
---|
| 1513 | node.setFocusable(true); |
---|
| 1514 | this.lastFocused = node; |
---|
| 1515 | } |
---|
| 1516 | }, |
---|
| 1517 | |
---|
| 1518 | _onNodeMouseEnter: function(/*dijit._Widget*/ /*===== node =====*/){ |
---|
| 1519 | // summary: |
---|
| 1520 | // Called when mouse is over a node (onmouseenter event), |
---|
| 1521 | // this is monitored by the DND code |
---|
| 1522 | }, |
---|
| 1523 | |
---|
| 1524 | _onNodeMouseLeave: function(/*dijit._Widget*/ /*===== node =====*/){ |
---|
| 1525 | // summary: |
---|
| 1526 | // Called when mouse leaves a node (onmouseleave event), |
---|
| 1527 | // this is monitored by the DND code |
---|
| 1528 | }, |
---|
| 1529 | |
---|
| 1530 | //////////////// Events from the model ////////////////////////// |
---|
| 1531 | |
---|
| 1532 | _onItemChange: function(/*Item*/ item){ |
---|
| 1533 | // summary: |
---|
| 1534 | // Processes notification of a change to an item's scalar values like label |
---|
| 1535 | var model = this.model, |
---|
| 1536 | identity = model.getIdentity(item), |
---|
| 1537 | nodes = this._itemNodesMap[identity]; |
---|
| 1538 | |
---|
| 1539 | if(nodes){ |
---|
| 1540 | var label = this.getLabel(item), |
---|
| 1541 | tooltip = this.getTooltip(item); |
---|
| 1542 | array.forEach(nodes, function(node){ |
---|
| 1543 | node.set({ |
---|
| 1544 | item: item, // theoretically could be new JS Object representing same item |
---|
| 1545 | label: label, |
---|
| 1546 | tooltip: tooltip |
---|
| 1547 | }); |
---|
| 1548 | node._updateItemClasses(item); |
---|
| 1549 | }); |
---|
| 1550 | } |
---|
| 1551 | }, |
---|
| 1552 | |
---|
| 1553 | _onItemChildrenChange: function(/*dojo.data.Item*/ parent, /*dojo.data.Item[]*/ newChildrenList){ |
---|
| 1554 | // summary: |
---|
| 1555 | // Processes notification of a change to an item's children |
---|
| 1556 | var model = this.model, |
---|
| 1557 | identity = model.getIdentity(parent), |
---|
| 1558 | parentNodes = this._itemNodesMap[identity]; |
---|
| 1559 | |
---|
| 1560 | if(parentNodes){ |
---|
| 1561 | array.forEach(parentNodes,function(parentNode){ |
---|
| 1562 | parentNode.setChildItems(newChildrenList); |
---|
| 1563 | }); |
---|
| 1564 | } |
---|
| 1565 | }, |
---|
| 1566 | |
---|
| 1567 | _onItemDelete: function(/*Item*/ item){ |
---|
| 1568 | // summary: |
---|
| 1569 | // Processes notification of a deletion of an item |
---|
| 1570 | var model = this.model, |
---|
| 1571 | identity = model.getIdentity(item), |
---|
| 1572 | nodes = this._itemNodesMap[identity]; |
---|
| 1573 | |
---|
| 1574 | if(nodes){ |
---|
| 1575 | array.forEach(nodes,function(node){ |
---|
| 1576 | // Remove node from set of selected nodes (if it's selected) |
---|
| 1577 | this.dndController.removeTreeNode(node); |
---|
| 1578 | |
---|
| 1579 | var parent = node.getParent(); |
---|
| 1580 | if(parent){ |
---|
| 1581 | // if node has not already been orphaned from a _onSetItem(parent, "children", ..) call... |
---|
| 1582 | parent.removeChild(node); |
---|
| 1583 | } |
---|
| 1584 | node.destroyRecursive(); |
---|
| 1585 | }, this); |
---|
| 1586 | delete this._itemNodesMap[identity]; |
---|
| 1587 | } |
---|
| 1588 | }, |
---|
| 1589 | |
---|
| 1590 | /////////////// Miscellaneous funcs |
---|
| 1591 | |
---|
| 1592 | _initState: function(){ |
---|
| 1593 | // summary: |
---|
| 1594 | // Load in which nodes should be opened automatically |
---|
| 1595 | this._openedNodes = {}; |
---|
| 1596 | if(this.persist && this.cookieName){ |
---|
| 1597 | var oreo = cookie(this.cookieName); |
---|
| 1598 | if(oreo){ |
---|
| 1599 | array.forEach(oreo.split(','), function(item){ |
---|
| 1600 | this._openedNodes[item] = true; |
---|
| 1601 | }, this); |
---|
| 1602 | } |
---|
| 1603 | } |
---|
| 1604 | }, |
---|
| 1605 | _state: function(node, expanded){ |
---|
| 1606 | // summary: |
---|
| 1607 | // Query or set expanded state for an node |
---|
| 1608 | if(!this.persist){ |
---|
| 1609 | return false; |
---|
| 1610 | } |
---|
| 1611 | var path = array.map(node.getTreePath(), function(item){ |
---|
| 1612 | return this.model.getIdentity(item); |
---|
| 1613 | }, this).join("/"); |
---|
| 1614 | if(arguments.length === 1){ |
---|
| 1615 | return this._openedNodes[path]; |
---|
| 1616 | }else{ |
---|
| 1617 | if(expanded){ |
---|
| 1618 | this._openedNodes[path] = true; |
---|
| 1619 | }else{ |
---|
| 1620 | delete this._openedNodes[path]; |
---|
| 1621 | } |
---|
| 1622 | var ary = []; |
---|
| 1623 | for(var id in this._openedNodes){ |
---|
| 1624 | ary.push(id); |
---|
| 1625 | } |
---|
| 1626 | cookie(this.cookieName, ary.join(","), {expires:365}); |
---|
| 1627 | } |
---|
| 1628 | }, |
---|
| 1629 | |
---|
| 1630 | destroy: function(){ |
---|
| 1631 | if(this._curSearch){ |
---|
| 1632 | clearTimeout(this._curSearch.timer); |
---|
| 1633 | delete this._curSearch; |
---|
| 1634 | } |
---|
| 1635 | if(this.rootNode){ |
---|
| 1636 | this.rootNode.destroyRecursive(); |
---|
| 1637 | } |
---|
| 1638 | if(this.dndController && !lang.isString(this.dndController)){ |
---|
| 1639 | this.dndController.destroy(); |
---|
| 1640 | } |
---|
| 1641 | this.rootNode = null; |
---|
| 1642 | this.inherited(arguments); |
---|
| 1643 | }, |
---|
| 1644 | |
---|
| 1645 | destroyRecursive: function(){ |
---|
| 1646 | // A tree is treated as a leaf, not as a node with children (like a grid), |
---|
| 1647 | // but defining destroyRecursive for back-compat. |
---|
| 1648 | this.destroy(); |
---|
| 1649 | }, |
---|
| 1650 | |
---|
| 1651 | resize: function(changeSize){ |
---|
| 1652 | if(changeSize){ |
---|
| 1653 | domGeometry.setMarginBox(this.domNode, changeSize); |
---|
| 1654 | } |
---|
| 1655 | |
---|
| 1656 | // The only JS sizing involved w/tree is the indentation, which is specified |
---|
| 1657 | // in CSS and read in through this dummy indentDetector node (tree must be |
---|
| 1658 | // visible and attached to the DOM to read this) |
---|
| 1659 | this._nodePixelIndent = domGeometry.position(this.tree.indentDetector).w; |
---|
| 1660 | |
---|
| 1661 | if(this.tree.rootNode){ |
---|
| 1662 | // If tree has already loaded, then reset indent for all the nodes |
---|
| 1663 | this.tree.rootNode.set('indent', this.showRoot ? 0 : -1); |
---|
| 1664 | } |
---|
| 1665 | }, |
---|
| 1666 | |
---|
| 1667 | _createTreeNode: function(/*Object*/ args){ |
---|
| 1668 | // summary: |
---|
| 1669 | // creates a TreeNode |
---|
| 1670 | // description: |
---|
| 1671 | // Developers can override this method to define their own TreeNode class; |
---|
| 1672 | // However it will probably be removed in a future release in favor of a way |
---|
| 1673 | // of just specifying a widget for the label, rather than one that contains |
---|
| 1674 | // the children too. |
---|
| 1675 | return new TreeNode(args); |
---|
| 1676 | }, |
---|
| 1677 | |
---|
| 1678 | _setTextDirAttr: function(textDir){ |
---|
| 1679 | if(textDir && this.textDir!= textDir){ |
---|
| 1680 | this._set("textDir",textDir); |
---|
| 1681 | this.rootNode.set("textDir", textDir); |
---|
| 1682 | } |
---|
| 1683 | } |
---|
| 1684 | }); |
---|
| 1685 | |
---|
| 1686 | Tree._TreeNode = TreeNode; // for monkey patching |
---|
| 1687 | |
---|
| 1688 | return Tree; |
---|
| 1689 | }); |
---|