Skip to content

Павел Резуненко / MTAweb

Go to a project
Switch branch/tag
NodeInterface.html 60.6 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 
<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>The source code</title>
  <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
  <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
  <style type="text/css">
    .highlight { display: block; background-color: #ddd; }
  </style>
  <script type="text/javascript">
    function highlight() {
      document.getElementById(location.hash.replace(/#/, "")).className = "highlight";
    }
  </script>
</head>
<body onload="prettyPrint(); highlight();">
  <pre class="prettyprint lang-js"><span id='Ext-data-NodeInterface'>/**
</span> * This class is used as a set of methods that are applied to the prototype of a
 * Model to decorate it with a Node API. This means that models used in conjunction with a tree
 * will have all of the tree related methods available on the model. In general this class will
 * not be used directly by the developer. This class also creates extra fields on the model if
 * they do not exist, to help maintain the tree state and UI. These fields are documented as
 * config options.
 */
Ext.define('Ext.data.NodeInterface', {
    requires: ['Ext.data.Field'],

<span id='Ext-data-NodeInterface-cfg-parentId'>    /**
</span>     * @cfg {String} parentId
     * ID of parent node.
     */

<span id='Ext-data-NodeInterface-cfg-index'>    /**
</span>     * @cfg {Number} index
     * The position of the node inside its parent. When parent has 4 children and the node is third amongst them,
     * index will be 2.
     */

<span id='Ext-data-NodeInterface-cfg-depth'>    /**
</span>     * @cfg {Number} depth
     * The number of parents this node has. A root node has depth 0, a child of it depth 1, and so on...
     */

<span id='Ext-data-NodeInterface-cfg-expanded'>    /**
</span>     * @cfg {Boolean} [expanded=false]
     * True if the node is expanded.
     */

<span id='Ext-data-NodeInterface-cfg-expandable'>    /**
</span>     * @cfg {Boolean} [expandable=false]
     * Set to true to allow for expanding/collapsing of this node.
     */

<span id='Ext-data-NodeInterface-cfg-checked'>    /**
</span>     * @cfg {Boolean} [checked=null]
     * Set to true or false to show a checkbox alongside this node.
     */

<span id='Ext-data-NodeInterface-cfg-leaf'>    /**
</span>     * @cfg {Boolean} [leaf=false]
     * Set to true to indicate that this child can have no children. The expand icon/arrow will then not be
     * rendered for this node.
     */

<span id='Ext-data-NodeInterface-cfg-cls'>    /**
</span>     * @cfg {String} cls
     * CSS class to apply for this node.
     */

<span id='Ext-data-NodeInterface-cfg-iconCls'>    /**
</span>     * @cfg {String} iconCls
     * CSS class to apply for this node's icon.
     */

<span id='Ext-data-NodeInterface-cfg-icon'>    /**
</span>     * @cfg {String} icon
     * URL for this node's icon.
     */

<span id='Ext-data-NodeInterface-cfg-root'>    /**
</span>     * @cfg {Boolean} root
     * True if this is the root node.
     */

<span id='Ext-data-NodeInterface-cfg-isLast'>    /**
</span>     * @cfg {Boolean} isLast
     * True if this is the last node.
     */

<span id='Ext-data-NodeInterface-cfg-isFirst'>    /**
</span>     * @cfg {Boolean} isFirst
     * True if this is the first node.
     */

<span id='Ext-data-NodeInterface-cfg-allowDrop'>    /**
</span>     * @cfg {Boolean} [allowDrop=true]
     * Set to false to deny dropping on this node.
     */

<span id='Ext-data-NodeInterface-cfg-allowDrag'>    /**
</span>     * @cfg {Boolean} [allowDrag=true]
     * Set to false to deny dragging of this node.
     */

<span id='Ext-data-NodeInterface-cfg-loaded'>    /**
</span>     * @cfg {Boolean} [loaded=false]
     * True if the node has finished loading.
     */

<span id='Ext-data-NodeInterface-cfg-loading'>    /**
</span>     * @cfg {Boolean} [loading=false]
     * True if the node is currently loading.
     */

<span id='Ext-data-NodeInterface-cfg-href'>    /**
</span>     * @cfg {String} href
     * An URL for a link that's created when this config is specified.
     */

<span id='Ext-data-NodeInterface-cfg-hrefTarget'>    /**
</span>     * @cfg {String} hrefTarget
     * Target for link. Only applicable when {@link #href} also specified.
     */

<span id='Ext-data-NodeInterface-cfg-qtip'>    /**
</span>     * @cfg {String} qtip
     * Tooltip text to show on this node.
     */

<span id='Ext-data-NodeInterface-cfg-qtitle'>    /**
</span>     * @cfg {String} qtitle
     * Tooltip title.
     */

<span id='Ext-data-NodeInterface-cfg-text'>    /**
</span>     * @cfg {String} text
     * The text for to show on node label.
     */

<span id='Ext-data-NodeInterface-cfg-children'>    /**
</span>     * @cfg {Ext.data.NodeInterface[]} children
     * Array of child nodes.
     */


<span id='Ext-data-NodeInterface-property-nextSibling'>    /**
</span>     * @property nextSibling
     * A reference to this node's next sibling node. `null` if this node does not have a next sibling.
     */

<span id='Ext-data-NodeInterface-property-previousSibling'>    /**
</span>     * @property previousSibling
     * A reference to this node's previous sibling node. `null` if this node does not have a previous sibling.
     */

<span id='Ext-data-NodeInterface-property-parentNode'>    /**
</span>     * @property parentNode
     * A reference to this node's parent node. `null` if this node is the root node.
     */

<span id='Ext-data-NodeInterface-property-lastChild'>    /**
</span>     * @property lastChild
     * A reference to this node's last child node. `null` if this node has no children.
     */

<span id='Ext-data-NodeInterface-property-firstChild'>    /**
</span>     * @property firstChild
     * A reference to this node's first child node. `null` if this node has no children.
     */

<span id='Ext-data-NodeInterface-property-childNodes'>    /**
</span>     * @property childNodes
     * An array of this nodes children.  Array will be empty if this node has no chidren.
     */

    statics: {
<span id='Ext-data-NodeInterface-static-method-decorate'>        /**
</span>         * This method allows you to decorate a Model's class to implement the NodeInterface.
         * This adds a set of methods, new events, new properties and new fields on every Record.
         * @param {Ext.Class/Ext.data.Model} modelClass The Model class or an instance of the Model class you want to
         * decorate the prototype of.
         * @static
         */
        decorate: function(modelClass) {
            var idName, idType;
            
            // get the reference to the model class, in case the argument was a string or a record
            if (typeof modelClass == 'string') {
                modelClass = Ext.ModelManager.getModel(modelClass);
            } else if (modelClass.isModel) {
                modelClass = Ext.ModelManager.getModel(modelClass.modelName);
            }
            
            // avoid unnecessary work in case the model was already decorated
            if (modelClass.prototype.isNode) {
                return;
            }

            idName = modelClass.prototype.idProperty;
            idField = modelClass.prototype.fields.get(idName);
            idType = modelClass.prototype.fields.get(idName).type.type;
            modelClass.override(this.getPrototypeBody());
            this.applyFields(modelClass, [
                {name: 'parentId',   type: idType,    defaultValue: null, useNull: idField.useNull},
                {name: 'index',      type: 'int',     defaultValue: null, persist: false},
                {name: 'depth',      type: 'int',     defaultValue: 0, persist: false},
                {name: 'expanded',   type: 'bool',    defaultValue: false, persist: false},
                {name: 'expandable', type: 'bool',    defaultValue: true, persist: false},
                {name: 'checked',    type: 'auto',    defaultValue: null, persist: false},
                {name: 'leaf',       type: 'bool',    defaultValue: false},
                {name: 'cls',        type: 'string',  defaultValue: null, persist: false},
                {name: 'iconCls',    type: 'string',  defaultValue: null, persist: false},
                {name: 'icon',       type: 'string',  defaultValue: null, persist: false},
                {name: 'root',       type: 'boolean', defaultValue: false, persist: false},
                {name: 'isLast',     type: 'boolean', defaultValue: false, persist: false},
                {name: 'isFirst',    type: 'boolean', defaultValue: false, persist: false},
                {name: 'allowDrop',  type: 'boolean', defaultValue: true, persist: false},
                {name: 'allowDrag',  type: 'boolean', defaultValue: true, persist: false},
                {name: 'loaded',     type: 'boolean', defaultValue: false, persist: false},
                {name: 'loading',    type: 'boolean', defaultValue: false, persist: false},
                {name: 'href',       type: 'string',  defaultValue: null, persist: false},
                {name: 'hrefTarget', type: 'string',  defaultValue: null, persist: false},
                {name: 'qtip',       type: 'string',  defaultValue: null, persist: false},
                {name: 'qtitle',     type: 'string',  defaultValue: null, persist: false},
                {name: 'children',   type: 'auto',   defaultValue: null, persist: false}
            ]);
        },
        
        applyFields: function(modelClass, addFields) {
            var modelPrototype = modelClass.prototype,
                fields = modelPrototype.fields,
                keys = fields.keys,
                ln = addFields.length,
                addField, i;

            for (i = 0; i &lt; ln; i++) {
                addField = addFields[i];
                if (!Ext.Array.contains(keys, addField.name)) {
                    fields.add(new Ext.data.Field(addField));
                }
            }

        },

        getPrototypeBody: function() {
            return {
<span id='Ext-data-NodeInterface-property-isNode'>                /**
</span>                 * @property {Boolean} isNode
                 * `true` in this class to identify an object as an instantiated Node, or subclass thereof.
                 */
                isNode: true,
                
                constructor: function() {
                    var me = this;
                    this.callParent(arguments);
                    Ext.applyIf(me, {
                        firstChild: null,
                        lastChild: null,
                        parentNode: null,
                        previousSibling: null,
                        nextSibling: null,
                        childNodes: []
                    });
                    me.enableBubble([
<span id='Ext-data-NodeInterface-event-append'>                        /**
</span>                         * @event append
                         * Fires when a new child node is appended
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} node The newly appended node
                         * @param {Number} index The index of the newly appended node
                         */
                        &quot;append&quot;,

<span id='Ext-data-NodeInterface-event-remove'>                        /**
</span>                         * @event remove
                         * Fires when a child node is removed
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} node The removed node
                         * @param {Boolean} isMove `true` if the child node is being removed so it can be moved to another position in the tree.
                         * (a side effect of calling {@link Ext.data.NodeInterface#appendChild appendChild} or
                         * {@link Ext.data.NodeInterface#insertBefore insertBefore} with a node that already has a parentNode)
                         */
                        &quot;remove&quot;,

<span id='Ext-data-NodeInterface-event-move'>                        /**
</span>                         * @event move
                         * Fires when this node is moved to a new location in the tree
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} oldParent The old parent of this node
                         * @param {Ext.data.NodeInterface} newParent The new parent of this node
                         * @param {Number} index The index it was moved to
                         */
                        &quot;move&quot;,

<span id='Ext-data-NodeInterface-event-insert'>                        /**
</span>                         * @event insert
                         * Fires when a new child node is inserted.
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} node The child node inserted
                         * @param {Ext.data.NodeInterface} refNode The child node the node was inserted before
                         */
                        &quot;insert&quot;,

<span id='Ext-data-NodeInterface-event-beforeappend'>                        /**
</span>                         * @event beforeappend
                         * Fires before a new child is appended, return false to cancel the append.
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} node The child node to be appended
                         */
                        &quot;beforeappend&quot;,

<span id='Ext-data-NodeInterface-event-beforeremove'>                        /**
</span>                         * @event beforeremove
                         * Fires before a child is removed, return false to cancel the remove.
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} node The child node to be removed
                         * @param {Boolean} isMove `true` if the child node is being removed so it can be moved to another position in the tree.
                         * (a side effect of calling {@link Ext.data.NodeInterface#appendChild appendChild} or
                         * {@link Ext.data.NodeInterface#insertBefore insertBefore} with a node that already has a parentNode)
                         */
                        &quot;beforeremove&quot;,

<span id='Ext-data-NodeInterface-event-beforemove'>                        /**
</span>                         * @event beforemove
                         * Fires before this node is moved to a new location in the tree. Return false to cancel the move.
                         * @param {Ext.data.NodeInterface} this This node
                         * @param {Ext.data.NodeInterface} oldParent The parent of this node
                         * @param {Ext.data.NodeInterface} newParent The new parent this node is moving to
                         * @param {Number} index The index it is being moved to
                         */
                        &quot;beforemove&quot;,

<span id='Ext-data-NodeInterface-event-beforeinsert'>                         /**
</span>                          * @event beforeinsert
                          * Fires before a new child is inserted, return false to cancel the insert.
                          * @param {Ext.data.NodeInterface} this This node
                          * @param {Ext.data.NodeInterface} node The child node to be inserted
                          * @param {Ext.data.NodeInterface} refNode The child node the node is being inserted before
                          */
                        &quot;beforeinsert&quot;,

<span id='Ext-data-NodeInterface-event-expand'>                        /**
</span>                         * @event expand
                         * Fires when this node is expanded.
                         * @param {Ext.data.NodeInterface} this The expanding node
                         */
                        &quot;expand&quot;,

<span id='Ext-data-NodeInterface-event-collapse'>                        /**
</span>                         * @event collapse
                         * Fires when this node is collapsed.
                         * @param {Ext.data.NodeInterface} this The collapsing node
                         */
                        &quot;collapse&quot;,

<span id='Ext-data-NodeInterface-event-beforeexpand'>                        /**
</span>                         * @event beforeexpand
                         * Fires before this node is expanded.
                         * @param {Ext.data.NodeInterface} this The expanding node
                         */
                        &quot;beforeexpand&quot;,

<span id='Ext-data-NodeInterface-event-beforecollapse'>                        /**
</span>                         * @event beforecollapse
                         * Fires before this node is collapsed.
                         * @param {Ext.data.NodeInterface} this The collapsing node
                         */
                        &quot;beforecollapse&quot;,

<span id='Ext-data-NodeInterface-event-sort'>                        /**
</span>                         * @event sort
                         * Fires when this node's childNodes are sorted.
                         * @param {Ext.data.NodeInterface} this This node.
                         * @param {Ext.data.NodeInterface[]} childNodes The childNodes of this node.
                         */
                        &quot;sort&quot;
                    ]);
                    return me;
                },
<span id='Ext-data-NodeInterface-method-createNode'>                /**
</span>                 * Ensures that the passed object is an instance of a Record with the NodeInterface applied
                 * @return {Ext.data.NodeInterface}
                 */
                createNode: function(node) {
                    if (Ext.isObject(node) &amp;&amp; !node.isModel) {
                        node = Ext.ModelManager.create(node, this.modelName);
                    }
                    // The node may already decorated, but may not have been
                    // so when the model constructor was called. If not,
                    // setup defaults here
                    if (!node.childNodes) {
                        Ext.applyIf(node, {
                            firstChild: null,
                            lastChild: null,
                            parentNode: null,
                            previousSibling: null,
                            nextSibling: null,
                            childNodes: []
                        });
                    }
                    return node;
                },

<span id='Ext-data-NodeInterface-method-isLeaf'>                /**
</span>                 * Returns true if this node is a leaf
                 * @return {Boolean}
                 */
                isLeaf : function() {
                    return this.get('leaf') === true;
                },

<span id='Ext-data-NodeInterface-method-setFirstChild'>                /**
</span>                 * Sets the first child of this node
                 * @private
                 * @param {Ext.data.NodeInterface} node
                 */
                setFirstChild : function(node) {
                    this.firstChild = node;
                },

<span id='Ext-data-NodeInterface-method-setLastChild'>                /**
</span>                 * Sets the last child of this node
                 * @private
                 * @param {Ext.data.NodeInterface} node
                 */
                setLastChild : function(node) {
                    this.lastChild = node;
                },

<span id='Ext-data-NodeInterface-method-updateInfo'>                /**
</span>                 * Updates general data of this node like isFirst, isLast, depth. This
                 * method is internally called after a node is moved. This shouldn't
                 * have to be called by the developer unless they are creating custom
                 * Tree plugins.
                 * @return {Boolean}
                 */
                updateInfo: function(commit) {
                    var me = this,
                        isRoot = me.isRoot(),
                        parentNode = me.parentNode,
                        isFirst = (!parentNode || isRoot ? true : parentNode.firstChild === me),
                        isLast = (!parentNode || isRoot ? true : parentNode.lastChild === me),
                        depth = 0,
                        parent = me,
                        children = me.childNodes,
                        len = children.length,
                        i = 0,
                        phantom = me.phantom;

                    while (parent.parentNode) {
                        ++depth;
                        parent = parent.parentNode;
                    }

                    me.beginEdit();
                    me.set({
                        isFirst: isFirst,
                        isLast: isLast,
                        depth: depth,
                        index: parentNode ? parentNode.indexOf(me) : 0,
                        parentId: parentNode ? parentNode.getId() : null
                    });
                    me.endEdit(true);
                    if (commit) {
                        me.commit();
                        me.phantom = phantom;
                    }

                    for (i = 0; i &lt; len; i++) {
                        children[i].updateInfo(commit);
                    }
                },

<span id='Ext-data-NodeInterface-method-isLast'>                /**
</span>                 * Returns true if this node is the last child of its parent
                 * @return {Boolean}
                 */
                isLast : function() {
                   return this.get('isLast');
                },

<span id='Ext-data-NodeInterface-method-isFirst'>                /**
</span>                 * Returns true if this node is the first child of its parent
                 * @return {Boolean}
                 */
                isFirst : function() {
                   return this.get('isFirst');
                },

<span id='Ext-data-NodeInterface-method-hasChildNodes'>                /**
</span>                 * Returns true if this node has one or more child nodes, else false.
                 * @return {Boolean}
                 */
                hasChildNodes : function() {
                    return !this.isLeaf() &amp;&amp; this.childNodes.length &gt; 0;
                },

<span id='Ext-data-NodeInterface-method-isExpandable'>                /**
</span>                 * Returns true if this node has one or more child nodes, or if the &lt;tt&gt;expandable&lt;/tt&gt;
                 * node attribute is explicitly specified as true, otherwise returns false.
                 * @return {Boolean}
                 */
                isExpandable : function() {
                    var me = this;

                    if (me.get('expandable')) {
                        return !(me.isLeaf() || (me.isLoaded() &amp;&amp; !me.hasChildNodes()));
                    }
                    return false;
                },
                
                triggerUIUpdate: function(){
                    // This isn't ideal, however none of the underlying fields have changed
                    // but we still need to update the UI
                    this.afterEdit([]);    
                },

<span id='Ext-data-NodeInterface-method-appendChild'>                /**
</span>                 * Inserts node(s) as the last child node of this node.
                 *
                 * If the node was previously a child node of another parent node, it will be removed from that node first.
                 *
                 * @param {Ext.data.NodeInterface/Ext.data.NodeInterface[]} node The node or Array of nodes to append
                 * @return {Ext.data.NodeInterface} The appended node if single append, or null if an array was passed
                 */
                appendChild : function(node, suppressEvents, commit) {
                    var me = this,
                        i, ln,
                        index,
                        oldParent,
                        ps;

                    // if passed an array do them one by one
                    if (Ext.isArray(node)) {
                        // suspend auto syncing while we append all the nodes
                        me.callStore('suspendAutoSync');
                        for (i = 0, ln = node.length - 1; i &lt; ln; i++) {
                            me.appendChild(node[i]);
                        }
                        // resume auto syncing before we append the last node
                        me.callStore('resumeAutoSync');
                        me.appendChild(node[ln]);
                    } else {
                        // Make sure it is a record
                        node = me.createNode(node);

                        if (suppressEvents !== true &amp;&amp; (!me.hasListeners.beforeappend || me.fireEvent(&quot;beforeappend&quot;, me, node) === false)) {
                            return false;
                        }

                        index = me.childNodes.length;
                        oldParent = node.parentNode;

                        // it's a move, make sure we move it cleanly
                        if (oldParent) {
                            if (suppressEvents !== true &amp;&amp; (!me.hasListeners.beforeremove || node.fireEvent(&quot;beforemove&quot;, node, oldParent, me, index) === false)) {
                                return false;
                            }
                            oldParent.removeChild(node, false, false, true);
                        }

                        index = me.childNodes.length;
                        if (index === 0) {
                            me.setFirstChild(node);
                        }

                        me.childNodes.push(node);
                        node.parentNode = me;
                        node.nextSibling = null;

                        me.setLastChild(node);

                        ps = me.childNodes[index - 1];
                        if (ps) {
                            node.previousSibling = ps;
                            ps.nextSibling = node;
                            ps.updateInfo(commit);
                        } else {
                            node.previousSibling = null;
                        }

                        node.updateInfo(commit);

                        // As soon as we append a child to this node, we are loaded
                        if (!me.isLoaded()) {
                            me.set('loaded', true);
                        } else if (me.childNodes.length === 1) {
                            me.triggerUIUpdate();
                        }

                        if(!node.isLeaf() &amp;&amp; node.phantom) {
                            node.set('loaded', true);
                        }

                        if (suppressEvents !== true) {
                            me.fireEvent(&quot;append&quot;, me, node, index);

                            if (oldParent) {
                                node.fireEvent(&quot;move&quot;, node, oldParent, me, index);
                            }
                        }

                        return node;
                    }
                },

<span id='Ext-data-NodeInterface-method-getBubbleTarget'>                /**
</span>                 * Returns the bubble target for this node
                 * @private
                 * @return {Object} The bubble target
                 */
                getBubbleTarget: function() {
                    return this.parentNode;
                },

<span id='Ext-data-NodeInterface-method-removeChild'>                /**
</span>                 * Removes a child node from this node.
                 * @param {Ext.data.NodeInterface} node The node to remove
                 * @param {Boolean} [destroy=false] True to destroy the node upon removal.
                 * @return {Ext.data.NodeInterface} The removed node
                 */
                removeChild : function(node, destroy, suppressEvents, isMove) {
                    var me = this,
                        index = me.indexOf(node),
                        i, childCount;

                    if (index == -1 || (suppressEvents !== true &amp;&amp; (!me.hasListeners.beforeremove || me.fireEvent(&quot;beforeremove&quot;, me, node, !!isMove) === false))) {
                        return false;
                    }

                    // remove it from childNodes collection
                    Ext.Array.erase(me.childNodes, index, 1);

                    // update child refs
                    if (me.firstChild == node) {
                        me.setFirstChild(node.nextSibling);
                    }
                    if (me.lastChild == node) {
                        me.setLastChild(node.previousSibling);
                    }

                    // update siblings
                    if (node.previousSibling) {
                        node.previousSibling.nextSibling = node.nextSibling;
                    }
                    if (node.nextSibling) {
                        node.nextSibling.previousSibling = node.previousSibling;
                    }

                    // update the info for all siblings starting at the index before the node's old index (or 0 if the removed node was the firstChild)
                    for(i = index &gt; 0 ? index - 1 : 0, childCount = me.childNodes.length; i &lt; childCount; i++) {
                        me.childNodes[i].updateInfo();
                    }

                    // If this node suddenly doesnt have childnodes anymore, update myself
                    if (!me.childNodes.length) {
                        me.triggerUIUpdate();
                    }

                    if (suppressEvents !== true) {
                        if (me.hasListeners.remove) {
                            me.fireEvent(&quot;remove&quot;, me, node, !!isMove);
                        }
                    }

                    if (destroy) {
                        node.destroy(true);
                    } else {
                        node.clear();
                    }

                    return node;
                },

<span id='Ext-data-NodeInterface-method-copy'>                /**
</span>                 * Creates a copy (clone) of this Node.
                 * @param {String} [id] A new id, defaults to this Node's id.
                 * @param {Boolean} [deep=false] True to recursively copy all child Nodes into the new Node.
                 * False to copy without child Nodes.
                 * @return {Ext.data.NodeInterface} A copy of this Node.
                 */
                copy: function(newId, deep) {
                    var me = this,
                        result = me.callOverridden(arguments),
                        len = me.childNodes ? me.childNodes.length : 0,
                        i;

                    // Move child nodes across to the copy if required
                    if (deep) {
                        for (i = 0; i &lt; len; i++) {
                            result.appendChild(me.childNodes[i].copy(true));
                        }
                    }
                    return result;
                },

<span id='Ext-data-NodeInterface-method-clear'>                /**
</span>                 * Clears the node.
                 * @private
                 * @param {Boolean} [destroy=false] True to destroy the node.
                 */
                clear : function(destroy) {
                    var me = this;

                    // clear any references from the node
                    me.parentNode = me.previousSibling = me.nextSibling = null;
                    if (destroy) {
                        me.firstChild = me.lastChild = null;
                    }
                },

<span id='Ext-data-NodeInterface-method-destroy'>                /**
</span>                 * Destroys the node.
                 */
                destroy : function(silent) {
                    /*
                     * Silent is to be used in a number of cases
                     * 1) When setRoot is called.
                     * 2) When destroy on the tree is called
                     * 3) For destroying child nodes on a node
                     */
                    var me      = this,
                        options = me.destroyOptions,
                        nodes   = me.childNodes,
                        nLen    = nodes.length,
                        n;

                    if (silent === true) {
                        me.clear(true);

                        for (n = 0; n &lt; nLen; n++) {
                            nodes[n].destroy(true);
                        }

                        me.childNodes = null;
                        delete me.destroyOptions;
                        me.callOverridden([options]);
                    } else {
                        me.destroyOptions = silent;
                        // overridden method will be called, since remove will end up calling destroy(true);
                        me.remove(true);
                    }
                },

<span id='Ext-data-NodeInterface-method-insertBefore'>                /**
</span>                 * Inserts the first node before the second node in this nodes childNodes collection.
                 * @param {Ext.data.NodeInterface} node The node to insert
                 * @param {Ext.data.NodeInterface} refNode The node to insert before (if null the node is appended)
                 * @return {Ext.data.NodeInterface} The inserted node
                 */
                insertBefore : function(node, refNode, suppressEvents) {
                    var me = this,
                        index     = me.indexOf(refNode),
                        oldParent = node.parentNode,
                        refIndex  = index,
                        childCount, ps, i;

                    if (!refNode) { // like standard Dom, refNode can be null for append
                        return me.appendChild(node);
                    }

                    // nothing to do
                    if (node == refNode) {
                        return false;
                    }

                    // Make sure it is a record with the NodeInterface
                    node = me.createNode(node);

                    if (suppressEvents !== true &amp;&amp; (!me.hasListeners.beforeinsert || me.fireEvent(&quot;beforeinsert&quot;, me, node, refNode) === false)) {
                        return false;
                    }

                    // when moving internally, indexes will change after remove
                    if (oldParent == me &amp;&amp; me.indexOf(node) &lt; index) {
                        refIndex--;
                    }

                    // it's a move, make sure we move it cleanly
                    if (oldParent) {
                        if (suppressEvents !== true &amp;&amp; (!me.hasListeners.beforeremove || node.fireEvent(&quot;beforemove&quot;, node, oldParent, me, index, refNode) === false)) {
                            return false;
                        }
                        oldParent.removeChild(node, false, false, true);
                    }

                    if (refIndex === 0) {
                        me.setFirstChild(node);
                    }

                    Ext.Array.splice(me.childNodes, refIndex, 0, node);
                    node.parentNode = me;

                    node.nextSibling = refNode;
                    refNode.previousSibling = node;

                    ps = me.childNodes[refIndex - 1];
                    if (ps) {
                        node.previousSibling = ps;
                        ps.nextSibling = node;
                    } else {
                        node.previousSibling = null;
                    }

                    // update the info for all siblings starting at the index before the node's insertion point (or 0 if the inserted node is the firstChild)
                    for(i = refIndex &gt; 0 ? refIndex - 1 : 0, childCount = me.childNodes.length; i &lt; childCount; i++) {
                        me.childNodes[i].updateInfo();
                    }

                    if (!me.isLoaded()) {
                        me.set('loaded', true);
                    }
                    // If this node didnt have any childnodes before, update myself
                    else if (me.childNodes.length === 1) {
                        me.triggerUIUpdate();
                    }

                    if(!node.isLeaf() &amp;&amp; node.phantom) {
                        node.set('loaded', true);
                    }

                    if (suppressEvents !== true) {
                        if (me.hasListeners.insert) {
                            me.fireEvent(&quot;insert&quot;, me, node, refNode);
                        }

                        if (oldParent &amp;&amp; me.hasListeners.move) {
                            node.fireEvent(&quot;move&quot;, node, oldParent, me, refIndex, refNode);
                        }
                    }

                    return node;
                },

<span id='Ext-data-NodeInterface-method-insertChild'>                /**
</span>                 * Inserts a node into this node.
                 * @param {Number} index The zero-based index to insert the node at
                 * @param {Ext.data.NodeInterface} node The node to insert
                 * @return {Ext.data.NodeInterface} The node you just inserted
                 */
                insertChild: function(index, node) {
                    var sibling = this.childNodes[index];
                    if (sibling) {
                        return this.insertBefore(node, sibling);
                    }
                    else {
                        return this.appendChild(node);
                    }
                },

<span id='Ext-data-NodeInterface-method-remove'>                /**
</span>                 * Removes this node from its parent
                 * @param {Boolean} [destroy=false] True to destroy the node upon removal.
                 * @return {Ext.data.NodeInterface} this
                 */
                remove : function(destroy, suppressEvents) {
                    var parentNode = this.parentNode;

                    if (parentNode) {
                        parentNode.removeChild(this, destroy, suppressEvents);
                    }
                    return this;
                },

<span id='Ext-data-NodeInterface-method-removeAll'>                /**
</span>                 * Removes all child nodes from this node.
                 * @param {Boolean} [destroy=false] &lt;True to destroy the node upon removal.
                 * @return {Ext.data.NodeInterface} this
                 */
                removeAll : function(destroy, suppressEvents) {
                    var cn = this.childNodes,
                        n;

                    while ((n = cn[0])) {
                        this.removeChild(n, destroy, suppressEvents);
                    }
                    return this;
                },

<span id='Ext-data-NodeInterface-method-getChildAt'>                /**
</span>                 * Returns the child node at the specified index.
                 * @param {Number} index
                 * @return {Ext.data.NodeInterface}
                 */
                getChildAt : function(index) {
                    return this.childNodes[index];
                },

<span id='Ext-data-NodeInterface-method-replaceChild'>                /**
</span>                 * Replaces one child node in this node with another.
                 * @param {Ext.data.NodeInterface} newChild The replacement node
                 * @param {Ext.data.NodeInterface} oldChild The node to replace
                 * @return {Ext.data.NodeInterface} The replaced node
                 */
                replaceChild : function(newChild, oldChild, suppressEvents) {
                    var s = oldChild ? oldChild.nextSibling : null;

                    this.removeChild(oldChild, false, suppressEvents);
                    this.insertBefore(newChild, s, suppressEvents);
                    return oldChild;
                },

<span id='Ext-data-NodeInterface-method-indexOf'>                /**
</span>                 * Returns the index of a child node
                 * @param {Ext.data.NodeInterface} node
                 * @return {Number} The index of the node or -1 if it was not found
                 */
                indexOf : function(child) {
                    return Ext.Array.indexOf(this.childNodes, child);
                },
                
<span id='Ext-data-NodeInterface-method-indexOfId'>                /**
</span>                 * Returns the index of a child node that matches the id
                 * @param {String} id The id of the node to find
                 * @return {Number} The index of the node or -1 if it was not found
                 */
                indexOfId: function(id) {
                    var childNodes = this.childNodes,
                        len = childNodes.length,
                        i = 0;
                        
                    for (; i &lt; len; ++i) {
                        if (childNodes[i].getId() === id) {
                            return i;
                        }    
                    }
                    return -1;
                },

<span id='Ext-data-NodeInterface-method-getPath'>                /**
</span>                 * Gets the hierarchical path from the root of the current node.
                 * @param {String} [field] The field to construct the path from. Defaults to the model idProperty.
                 * @param {String} [separator=&quot;/&quot;] A separator to use.
                 * @return {String} The node path
                 */
                getPath: function(field, separator) {
                    field = field || this.idProperty;
                    separator = separator || '/';

                    var path = [this.get(field)],
                        parent = this.parentNode;

                    while (parent) {
                        path.unshift(parent.get(field));
                        parent = parent.parentNode;
                    }
                    return separator + path.join(separator);
                },

<span id='Ext-data-NodeInterface-method-getDepth'>                /**
</span>                 * Returns depth of this node (the root node has a depth of 0)
                 * @return {Number}
                 */
                getDepth : function() {
                    return this.get('depth');
                },

<span id='Ext-data-NodeInterface-method-bubble'>                /**
</span>                 * Bubbles up the tree from this node, calling the specified function with each node. The arguments to the function
                 * will be the args provided or the current node. If the function returns false at any point,
                 * the bubble is stopped.
                 * @param {Function} fn The function to call
                 * @param {Object} [scope] The scope (this reference) in which the function is executed. Defaults to the current Node.
                 * @param {Array} [args] The args to call the function with. Defaults to passing the current Node.
                 */
                bubble : function(fn, scope, args) {
                    var p = this;
                    while (p) {
                        if (fn.apply(scope || p, args || [p]) === false) {
                            break;
                        }
                        p = p.parentNode;
                    }
                },

                //&lt;deprecated since=0.99&gt;
                cascade: function() {
                    if (Ext.isDefined(Ext.global.console)) {
                        Ext.global.console.warn('Ext.data.Node: cascade has been deprecated. Please use cascadeBy instead.');
                    }
                    return this.cascadeBy.apply(this, arguments);
                },
                //&lt;/deprecated&gt;

<span id='Ext-data-NodeInterface-method-cascadeBy'>                /**
</span>                 * Cascades down the tree from this node, calling the specified function with each node. The arguments to the function
                 * will be the args provided or the current node. If the function returns false at any point,
                 * the cascade is stopped on that branch.
                 * @param {Function} fn The function to call
                 * @param {Object} [scope] The scope (this reference) in which the function is executed. Defaults to the current Node.
                 * @param {Array} [args] The args to call the function with. Defaults to passing the current Node.
                 */
                cascadeBy : function(fn, scope, args) {
                    if (fn.apply(scope || this, args || [this]) !== false) {
                        var childNodes = this.childNodes,
                            length     = childNodes.length,
                            i;

                        for (i = 0; i &lt; length; i++) {
                            childNodes[i].cascadeBy(fn, scope, args);
                        }
                    }
                },

<span id='Ext-data-NodeInterface-method-eachChild'>                /**
</span>                 * Interates the child nodes of this node, calling the specified function with each node. The arguments to the function
                 * will be the args provided or the current node. If the function returns false at any point,
                 * the iteration stops.
                 * @param {Function} fn The function to call
                 * @param {Object} [scope] The scope (this reference) in which the function is executed. Defaults to the current Node in iteration.
                 * @param {Array} [args] The args to call the function with. Defaults to passing the current Node.
                 */
                eachChild : function(fn, scope, args) {
                    var childNodes = this.childNodes,
                        length     = childNodes.length,
                        i;

                    for (i = 0; i &lt; length; i++) {
                        if (fn.apply(scope || this, args || [childNodes[i]]) === false) {
                            break;
                        }
                    }
                },

<span id='Ext-data-NodeInterface-method-findChild'>                /**
</span>                 * Finds the first child that has the attribute with the specified value.
                 * @param {String} attribute The attribute name
                 * @param {Object} value The value to search for
                 * @param {Boolean} [deep=false] True to search through nodes deeper than the immediate children
                 * @return {Ext.data.NodeInterface} The found child or null if none was found
                 */
                findChild : function(attribute, value, deep) {
                    return this.findChildBy(function() {
                        return this.get(attribute) == value;
                    }, null, deep);
                },

<span id='Ext-data-NodeInterface-method-findChildBy'>                /**
</span>                 * Finds the first child by a custom function. The child matches if the function passed returns true.
                 * @param {Function} fn A function which must return true if the passed Node is the required Node.
                 * @param {Object} [scope] The scope (this reference) in which the function is executed. Defaults to the Node being tested.
                 * @param {Boolean} [deep=false] True to search through nodes deeper than the immediate children
                 * @return {Ext.data.NodeInterface} The found child or null if none was found
                 */
                findChildBy : function(fn, scope, deep) {
                    var cs = this.childNodes,
                        len = cs.length,
                        i = 0, n, res;

                    for (; i &lt; len; i++) {
                        n = cs[i];
                        if (fn.call(scope || n, n) === true) {
                            return n;
                        }
                        else if (deep) {
                            res = n.findChildBy(fn, scope, deep);
                            if (res !== null) {
                                return res;
                            }
                        }
                    }

                    return null;
                },

<span id='Ext-data-NodeInterface-method-contains'>                /**
</span>                 * Returns true if this node is an ancestor (at any point) of the passed node.
                 * @param {Ext.data.NodeInterface} node
                 * @return {Boolean}
                 */
                contains : function(node) {
                    return node.isAncestor(this);
                },

<span id='Ext-data-NodeInterface-method-isAncestor'>                /**
</span>                 * Returns true if the passed node is an ancestor (at any point) of this node.
                 * @param {Ext.data.NodeInterface} node
                 * @return {Boolean}
                 */
                isAncestor : function(node) {
                    var p = this.parentNode;
                    while (p) {
                        if (p == node) {
                            return true;
                        }
                        p = p.parentNode;
                    }
                    return false;
                },

<span id='Ext-data-NodeInterface-method-sort'>                /**
</span>                 * Sorts this nodes children using the supplied sort function.
                 * @param {Function} fn A function which, when passed two Nodes, returns -1, 0 or 1 depending upon required sort order.
                 * @param {Boolean} [recursive=false] True to apply this sort recursively
                 * @param {Boolean} [suppressEvent=false] True to not fire a sort event.
                 */
                sort : function(sortFn, recursive, suppressEvent) {
                    var cs  = this.childNodes,
                        ln = cs.length,
                        i, n;

                    if (ln &gt; 0) {
                        Ext.Array.sort(cs, sortFn);
                        for (i = 0; i &lt; ln; i++) {
                            n = cs[i];
                            n.previousSibling = cs[i-1];
                            n.nextSibling = cs[i+1];

                            if (i === 0) {
                                this.setFirstChild(n);
                            }
                            if (i == ln - 1) {
                                this.setLastChild(n);
                            }
                            n.updateInfo();
                            if (recursive &amp;&amp; !n.isLeaf()) {
                                n.sort(sortFn, true, true);
                            }
                        }

                        if (suppressEvent !== true) {
                            this.fireEvent('sort', this, cs);
                        }
                    }
                },

<span id='Ext-data-NodeInterface-method-isExpanded'>                /**
</span>                 * Returns true if this node is expaned
                 * @return {Boolean}
                 */
                isExpanded: function() {
                    return this.get('expanded');
                },

<span id='Ext-data-NodeInterface-method-isLoaded'>                /**
</span>                 * Returns true if this node is loaded
                 * @return {Boolean}
                 */
                isLoaded: function() {
                    return this.get('loaded');
                },

<span id='Ext-data-NodeInterface-method-isLoading'>                /**
</span>                 * Returns true if this node is loading
                 * @return {Boolean}
                 */
                isLoading: function() {
                    return this.get('loading');
                },

<span id='Ext-data-NodeInterface-method-isRoot'>                /**
</span>                 * Returns true if this node is the root node
                 * @return {Boolean}
                 */
                isRoot: function() {
                    return !this.parentNode;
                },

<span id='Ext-data-NodeInterface-method-isVisible'>                /**
</span>                 * Returns true if this node is visible
                 * @return {Boolean}
                 */
                isVisible: function() {
                    var parent = this.parentNode;
                    while (parent) {
                        if (!parent.isExpanded()) {
                            return false;
                        }
                        parent = parent.parentNode;
                    }
                    return true;
                },

<span id='Ext-data-NodeInterface-method-expand'>                /**
</span>                 * Expand this node.
                 * @param {Boolean} [recursive=false] True to recursively expand all the children
                 * @param {Function} [callback] The function to execute once the expand completes
                 * @param {Object} [scope] The scope to run the callback in
                 */
                expand: function(recursive, callback, scope) {
                    var me = this;

                    // all paths must call the callback (eventually) or things like
                    // selectPath fail

                    // First we start by checking if this node is a parent
                    if (!me.isLeaf()) {
                        // If it's loaded, wait until it loads before proceeding
                        if (me.isLoading()) {
                            me.on('expand', function(){
                                me.expand(recursive, callback, scope);
                            }, me, {single: true});
                        } else {
                            // Now we check if this record is already expanding or expanded
                            if (!me.isExpanded()) {
                                // The TreeStore actually listens for the beforeexpand method and checks
                                // whether we have to asynchronously load the children from the server
                                // first. Thats why we pass a callback function to the event that the
                                // store can call once it has loaded and parsed all the children.
                                me.fireEvent('beforeexpand', me, function() {
                                    me.set('expanded', true);
                                    if (me.hasListeners.expand) {
                                        me.fireEvent('expand', me, me.childNodes, false);
                                    }

                                    // Call the expandChildren method if recursive was set to true
                                    if (recursive) {
                                        me.expandChildren(true, callback, scope);
                                    } else {
                                        Ext.callback(callback, scope || me, [me.childNodes]);
                                    }
                                }, me);
                            } else if (recursive) {
                                // If it is is already expanded but we want to recursively expand then call expandChildren
                                me.expandChildren(true, callback, scope);
                            } else {
                                Ext.callback(callback, scope || me, [me.childNodes]);
                            }
                        }
                    } else {
                        // If it's not then we fire the callback right away
                        Ext.callback(callback, scope || me); // leaf = no childNodes
                    }
                },

<span id='Ext-data-NodeInterface-method-expandChildren'>                /**
</span>                 * Expand all the children of this node.
                 * @param {Boolean} [recursive=false] True to recursively expand all the children
                 * @param {Function} [callback] The function to execute once all the children are expanded
                 * @param {Object} [scope] The scope to run the callback in
                 */
                expandChildren: function(recursive, callback, scope) {
                    var me = this,
                        i = 0,
                        nodes = me.childNodes,
                        ln = nodes.length,
                        node,
                        expanding = 0;

                    for (; i &lt; ln; ++i) {
                        node = nodes[i];
                        if (!node.isLeaf()) {
                            expanding++;
                            nodes[i].expand(recursive, function () {
                                expanding--;
                                if (callback &amp;&amp; !expanding) {
                                    Ext.callback(callback, scope || me, [me.childNodes]);
                                }
                            });
                        }
                    }

                    if (!expanding &amp;&amp; callback) {
                        Ext.callback(callback, scope || me, [me.childNodes]);                    }
                },

<span id='Ext-data-NodeInterface-method-collapse'>                /**
</span>                 * Collapse this node.
                 * @param {Boolean} [recursive=false] True to recursively collapse all the children
                 * @param {Function} [callback] The function to execute once the collapse completes
                 * @param {Object} [scope] The scope to run the callback in
                 */
                collapse: function(recursive, callback, scope) {
                    var me = this;

                    // First we start by checking if this node is a parent
                    if (!me.isLeaf()) {
                        // Now we check if this record is already collapsing or collapsed
                        if (!me.collapsing &amp;&amp; me.isExpanded()) {
                            me.fireEvent('beforecollapse', me, function() {
                                me.set('expanded', false);
                                if (me.hasListeners.collapse) {
                                    me.fireEvent('collapse', me, me.childNodes, false);
                                }

                                // Call the collapseChildren method if recursive was set to true
                                if (recursive) {
                                    me.collapseChildren(true, callback, scope);
                                }
                                else {
                                    Ext.callback(callback, scope || me, [me.childNodes]);
                                }
                            }, me);
                        }
                        // If it is is already collapsed but we want to recursively collapse then call collapseChildren
                        else if (recursive) {
                            me.collapseChildren(true, callback, scope);
                        } else {
                            Ext.callback(callback, scope || me, [me.childNodes]);
                        }
                    }
                    // If it's not then we fire the callback right away
                    else {
                        Ext.callback(callback, scope || me, [me.childNodes]);
                    }
                },

<span id='Ext-data-NodeInterface-method-collapseChildren'>                /**
</span>                 * Collapse all the children of this node.
                 * @param {Function} [recursive=false] True to recursively collapse all the children
                 * @param {Function} [callback] The function to execute once all the children are collapsed
                 * @param {Object} [scope] The scope to run the callback in
                 */
                collapseChildren: function(recursive, callback, scope) {
                    var me = this,
                        i = 0,
                        nodes = me.childNodes,
                        ln = nodes.length,
                        node,
                        collapsing = 0;

                    for (; i &lt; ln; ++i) {
                        node = nodes[i];
                        if (!node.isLeaf()) {
                            collapsing++;
                            nodes[i].collapse(recursive, function () {
                                collapsing--;
                                if (callback &amp;&amp; !collapsing) {
                                    Ext.callback(callback, scope || me, [me.childNodes]);
                                }
                            });
                        }
                    }

                    if (!collapsing &amp;&amp; callback) {
                        Ext.callback(callback, scope || me, [me.childNodes]);
                    }
                }
            };
        }
    }
});
</pre>
</body>
</html>