Subversion Repositories Applications.papyrus

/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.widget.TreeControllerExtension");
dojo.declare("dojo.widget.TreeControllerExtension", null, {saveExpandedIndices:function (node, field) {
        var obj = {};
        for (var i = 0; i < node.children.length; i++) {
                if (node.children[i].isExpanded) {
                        var key = dojo.lang.isUndefined(field) ? i : node.children[i][field];
                        obj[key] = this.saveExpandedIndices(node.children[i], field);
                }
        }
        return obj;
}, restoreExpandedIndices:function (node, savedIndices, field) {
        var _this = this;
        var handler = function (node, savedIndices) {
                this.node = node;
                this.savedIndices = savedIndices;
                this.process = function () {
                        _this.restoreExpandedIndices(this.node, this.savedIndices, field);
                };
        };
        for (var i = 0; i < node.children.length; i++) {
                var child = node.children[i];
                var found = false;
                var key = -1;
                if (dojo.lang.isUndefined(field) && savedIndices[i]) {
                        found = true;
                        key = i;
                }
                if (field) {
                        for (var key in savedIndices) {
                                if (key == child[field]) {
                                        found = true;
                                        break;
                                }
                        }
                }
                if (found) {
                        var h = new handler(child, savedIndices[key]);
                        _this.expand(child, false, h, h.process);
                } else {
                        if (child.isExpanded) {
                                dojo.lang.forEach(child.getDescendants(), function (elem) {
                                        _this.collapse(elem);
                                });
                        }
                }
        }
}});