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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.behavior");
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dojo.require("dojo.event.*");
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dojo.require("dojo.experimental");
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dojo.experimental("dojo.behavior");
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dojo.behavior = new function () {
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function arrIn(obj, name) {
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if (!obj[name]) {
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obj[name] = [];
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}
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return obj[name];
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}
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function forIn(obj, scope, func) {
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var tmpObj = {};
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for (var x in obj) {
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if (typeof tmpObj[x] == "undefined") {
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if (!func) {
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scope(obj[x], x);
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} else {
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func.call(scope, obj[x], x);
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}
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}
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}
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}
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this.behaviors = {};
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this.add = function (behaviorObj) {
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var tmpObj = {};
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forIn(behaviorObj, this, function (behavior, name) {
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var tBehavior = arrIn(this.behaviors, name);
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if ((dojo.lang.isString(behavior)) || (dojo.lang.isFunction(behavior))) {
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behavior = {found:behavior};
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}
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forIn(behavior, function (rule, ruleName) {
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arrIn(tBehavior, ruleName).push(rule);
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});
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});
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};
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this.apply = function () {
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dojo.profile.start("dojo.behavior.apply");
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var r = dojo.render.html;
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var safariGoodEnough = (!r.safari);
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if (r.safari) {
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var uas = r.UA.split("AppleWebKit/")[1];
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if (parseInt(uas.match(/[0-9.]{3,}/)) >= 420) {
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safariGoodEnough = true;
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}
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}
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if ((dj_undef("behaviorFastParse", djConfig) ? (safariGoodEnough) : djConfig["behaviorFastParse"])) {
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this.applyFast();
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} else {
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this.applySlow();
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}
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dojo.profile.end("dojo.behavior.apply");
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};
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this.matchCache = {};
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this.elementsById = function (id, handleRemoved) {
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var removed = [];
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var added = [];
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arrIn(this.matchCache, id);
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if (handleRemoved) {
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var nodes = this.matchCache[id];
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for (var x = 0; x < nodes.length; x++) {
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if (nodes[x].id != "") {
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removed.push(nodes[x]);
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nodes.splice(x, 1);
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x--;
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}
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}
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}
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var tElem = dojo.byId(id);
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while (tElem) {
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if (!tElem["idcached"]) {
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added.push(tElem);
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}
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tElem.id = "";
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tElem = dojo.byId(id);
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}
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this.matchCache[id] = this.matchCache[id].concat(added);
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dojo.lang.forEach(this.matchCache[id], function (node) {
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node.id = id;
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node.idcached = true;
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});
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return {"removed":removed, "added":added, "match":this.matchCache[id]};
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};
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this.applyToNode = function (node, action, ruleSetName) {
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if (typeof action == "string") {
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dojo.event.topic.registerPublisher(action, node, ruleSetName);
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} else {
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if (typeof action == "function") {
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if (ruleSetName == "found") {
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action(node);
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} else {
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dojo.event.connect(node, ruleSetName, action);
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}
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} else {
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action.srcObj = node;
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action.srcFunc = ruleSetName;
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dojo.event.kwConnect(action);
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}
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}
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};
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this.applyFast = function () {
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dojo.profile.start("dojo.behavior.applyFast");
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forIn(this.behaviors, function (tBehavior, id) {
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var elems = dojo.behavior.elementsById(id);
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dojo.lang.forEach(elems.added, function (elem) {
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forIn(tBehavior, function (ruleSet, ruleSetName) {
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if (dojo.lang.isArray(ruleSet)) {
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dojo.lang.forEach(ruleSet, function (action) {
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dojo.behavior.applyToNode(elem, action, ruleSetName);
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});
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}
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});
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});
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});
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dojo.profile.end("dojo.behavior.applyFast");
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};
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this.applySlow = function () {
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dojo.profile.start("dojo.behavior.applySlow");
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var all = document.getElementsByTagName("*");
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var allLen = all.length;
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for (var x = 0; x < allLen; x++) {
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var elem = all[x];
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if ((elem.id) && (!elem["behaviorAdded"]) && (this.behaviors[elem.id])) {
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elem["behaviorAdded"] = true;
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forIn(this.behaviors[elem.id], function (ruleSet, ruleSetName) {
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if (dojo.lang.isArray(ruleSet)) {
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dojo.lang.forEach(ruleSet, function (action) {
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dojo.behavior.applyToNode(elem, action, ruleSetName);
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});
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}
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});
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}
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}
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dojo.profile.end("dojo.behavior.applySlow");
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};
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};
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dojo.addOnLoad(dojo.behavior, "apply");
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