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/* |
Copyright (c) 2004-2006, The Dojo Foundation |
All Rights Reserved. |
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Licensed under the Academic Free License version 2.1 or above OR the |
modified BSD license. For more information on Dojo licensing, see: |
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http://dojotoolkit.org/community/licensing.shtml |
*/ |
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dojo.provide("dojo.behavior"); |
dojo.require("dojo.event.*"); |
dojo.require("dojo.experimental"); |
dojo.experimental("dojo.behavior"); |
dojo.behavior = new function () { |
function arrIn(obj, name) { |
if (!obj[name]) { |
obj[name] = []; |
} |
return obj[name]; |
} |
function forIn(obj, scope, func) { |
var tmpObj = {}; |
for (var x in obj) { |
if (typeof tmpObj[x] == "undefined") { |
if (!func) { |
scope(obj[x], x); |
} else { |
func.call(scope, obj[x], x); |
} |
} |
} |
} |
this.behaviors = {}; |
this.add = function (behaviorObj) { |
var tmpObj = {}; |
forIn(behaviorObj, this, function (behavior, name) { |
var tBehavior = arrIn(this.behaviors, name); |
if ((dojo.lang.isString(behavior)) || (dojo.lang.isFunction(behavior))) { |
behavior = {found:behavior}; |
} |
forIn(behavior, function (rule, ruleName) { |
arrIn(tBehavior, ruleName).push(rule); |
}); |
}); |
}; |
this.apply = function () { |
dojo.profile.start("dojo.behavior.apply"); |
var r = dojo.render.html; |
var safariGoodEnough = (!r.safari); |
if (r.safari) { |
var uas = r.UA.split("AppleWebKit/")[1]; |
if (parseInt(uas.match(/[0-9.]{3,}/)) >= 420) { |
safariGoodEnough = true; |
} |
} |
if ((dj_undef("behaviorFastParse", djConfig) ? (safariGoodEnough) : djConfig["behaviorFastParse"])) { |
this.applyFast(); |
} else { |
this.applySlow(); |
} |
dojo.profile.end("dojo.behavior.apply"); |
}; |
this.matchCache = {}; |
this.elementsById = function (id, handleRemoved) { |
var removed = []; |
var added = []; |
arrIn(this.matchCache, id); |
if (handleRemoved) { |
var nodes = this.matchCache[id]; |
for (var x = 0; x < nodes.length; x++) { |
if (nodes[x].id != "") { |
removed.push(nodes[x]); |
nodes.splice(x, 1); |
x--; |
} |
} |
} |
var tElem = dojo.byId(id); |
while (tElem) { |
if (!tElem["idcached"]) { |
added.push(tElem); |
} |
tElem.id = ""; |
tElem = dojo.byId(id); |
} |
this.matchCache[id] = this.matchCache[id].concat(added); |
dojo.lang.forEach(this.matchCache[id], function (node) { |
node.id = id; |
node.idcached = true; |
}); |
return {"removed":removed, "added":added, "match":this.matchCache[id]}; |
}; |
this.applyToNode = function (node, action, ruleSetName) { |
if (typeof action == "string") { |
dojo.event.topic.registerPublisher(action, node, ruleSetName); |
} else { |
if (typeof action == "function") { |
if (ruleSetName == "found") { |
action(node); |
} else { |
dojo.event.connect(node, ruleSetName, action); |
} |
} else { |
action.srcObj = node; |
action.srcFunc = ruleSetName; |
dojo.event.kwConnect(action); |
} |
} |
}; |
this.applyFast = function () { |
dojo.profile.start("dojo.behavior.applyFast"); |
forIn(this.behaviors, function (tBehavior, id) { |
var elems = dojo.behavior.elementsById(id); |
dojo.lang.forEach(elems.added, function (elem) { |
forIn(tBehavior, function (ruleSet, ruleSetName) { |
if (dojo.lang.isArray(ruleSet)) { |
dojo.lang.forEach(ruleSet, function (action) { |
dojo.behavior.applyToNode(elem, action, ruleSetName); |
}); |
} |
}); |
}); |
}); |
dojo.profile.end("dojo.behavior.applyFast"); |
}; |
this.applySlow = function () { |
dojo.profile.start("dojo.behavior.applySlow"); |
var all = document.getElementsByTagName("*"); |
var allLen = all.length; |
for (var x = 0; x < allLen; x++) { |
var elem = all[x]; |
if ((elem.id) && (!elem["behaviorAdded"]) && (this.behaviors[elem.id])) { |
elem["behaviorAdded"] = true; |
forIn(this.behaviors[elem.id], function (ruleSet, ruleSetName) { |
if (dojo.lang.isArray(ruleSet)) { |
dojo.lang.forEach(ruleSet, function (action) { |
dojo.behavior.applyToNode(elem, action, ruleSetName); |
}); |
} |
}); |
} |
} |
dojo.profile.end("dojo.behavior.applySlow"); |
}; |
}; |
dojo.addOnLoad(dojo.behavior, "apply"); |
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