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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.widget.TreeTimeoutIterator");
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dojo.require("dojo.event.*");
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dojo.require("dojo.json");
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dojo.require("dojo.io.*");
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dojo.require("dojo.widget.TreeCommon");
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dojo.declare("dojo.widget.TreeTimeoutIterator", null, function (elem, callFunc, callObj) {
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var _this = this;
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this.currentParent = elem;
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this.callFunc = callFunc;
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this.callObj = callObj ? callObj : this;
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this.stack = [];
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}, {maxStackDepth:Number.POSITIVE_INFINITY, stack:null, currentParent:null, currentIndex:0, filterFunc:function () {
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return true;
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}, finishFunc:function () {
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return true;
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}, setFilter:function (func, obj) {
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this.filterFunc = func;
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this.filterObj = obj;
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}, setMaxLevel:function (level) {
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this.maxStackDepth = level - 2;
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}, forward:function (timeout) {
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var _this = this;
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if (this.timeout) {
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var tid = setTimeout(function () {
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_this.processNext();
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clearTimeout(tid);
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}, _this.timeout);
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} else {
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return this.processNext();
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}
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}, start:function (processFirst) {
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if (processFirst) {
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return this.callFunc.call(this.callObj, this.currentParent, this);
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}
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return this.processNext();
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}, processNext:function () {
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var handler;
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var _this = this;
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var found;
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var next;
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if (this.maxStackDepth == -2) {
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return;
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}
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while (true) {
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var children = this.currentParent.children;
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if (children && children.length) {
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do {
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next = children[this.currentIndex];
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} while (this.currentIndex++ < children.length && !(found = this.filterFunc.call(this.filterObj, next)));
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if (found) {
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if (next.isFolder && this.stack.length <= this.maxStackDepth) {
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this.moveParent(next, 0);
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}
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return this.callFunc.call(this.callObj, next, this);
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}
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}
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if (this.stack.length) {
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this.popParent();
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continue;
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}
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break;
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}
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return this.finishFunc.call(this.finishObj);
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}, setFinish:function (func, obj) {
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this.finishFunc = func;
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this.finishObj = obj;
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}, popParent:function () {
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var p = this.stack.pop();
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this.currentParent = p[0];
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this.currentIndex = p[1];
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}, moveParent:function (nextParent, nextIndex) {
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this.stack.push([this.currentParent, this.currentIndex]);
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this.currentParent = nextParent;
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this.currentIndex = nextIndex;
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}});
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