svnno****@sourc*****
svnno****@sourc*****
2011年 1月 20日 (木) 21:02:16 JST
ForkRevision: 2313
http://sourceforge.jp/projects/sie/svn/view?view=rev&revision=2313
Author: dhrname
Date: 2011-01-20 21:02:16 +0900 (Thu, 20 Jan 2011)
Log Message:
-----------
initMutationEventメソッドがボトルネックになりやすかったので、DOMAttrModifiedイベントの発火処理を改良して、メソッドの使われる回数を減らした
Modified Paths:
--------------
branches/06x/068/org/w3c/dom/events.js
Modified: branches/06x/068/org/w3c/dom/events.js
===================================================================
--- branches/06x/068/org/w3c/dom/events.js 2011-01-19 14:20:48 UTC (rev 2312)
+++ branches/06x/068/org/w3c/dom/events.js 2011-01-20 12:02:16 UTC (rev 2313)
@@ -312,26 +312,28 @@
function MutationEvent(){
Event.call(this);
-/*Node*/ this.relatedNode;
-/*string*/ this.prevValue;
-/*string*/ this.newValue;
-/*string*/ this.attrName;
-/*unsigned short*/ this.attrChange;
return this;
};
MutationEvent.prototype = new Event();
MutationEvent.constructor = Event;
-/*void*/ MutationEvent.prototype.initMutationEvent = function(/*string*/ typeArg, /*boolean*/ canBubbleArg,
+(function() {
+/*void*/ this.initMutationEvent = function(/*string*/ typeArg, /*boolean*/ canBubbleArg,
/*boolean*/ cancelableArg, /*Node*/ relatedNodeArg, /*string*/ prevValueArg, /*string*/ newValueArg,
/*string*/ attrNameArg, /*unsigned short*/ attrChangeArg) {
- this.initEvent(typeArg, canBubbleArg, cancelableArg);
- this.relatedNode = relatedNodeArg;
- this.prevValue = prevValueArg;
- this.newValue = newValueArg;
- this.attrName = attrNameArg;
- this.attrChange = attrChangeArg;
- typeArg = canBubbleArg = cancelableArg = relatedNodeArg = prevValueArg = newValueArg = attrNameArg = attrChangeArg = null;
-};
+ this.initEvent(typeArg, canBubbleArg, cancelableArg);
+ this.relatedNode = relatedNodeArg;
+ this.prevValue = prevValueArg;
+ this.newValue = newValueArg;
+ this.attrName = attrNameArg;
+ this.attrChange = attrChangeArg;
+ typeArg = canBubbleArg = cancelableArg = relatedNodeArg = prevValueArg = newValueArg = attrNameArg = attrChangeArg = null;
+ };
+ /*Node*/ this.relatedNode = null;
+ /*string*/ this.prevValue = null;
+ /*string*/ this.newValue = null;
+ /*string*/ this.attrName = null;
+ /*unsigned short*/ this.attrChange = 2;
+}).apply(MutationEvent.prototype);
// attrChangeType
/*unsigned short*/ MutationEvent.MODIFICATION = 1;
/*unsigned short*/ MutationEvent.ADDITION = 2;
@@ -353,7 +355,11 @@
/*ここから*/
var evt = this.ownerDocument.createEvent("MutationEvents");
if (!s) { //ノードがなければ
- evt.initMutationEvent("DOMAttrModified", true, false, newAttr, null, newAttr.nodeValue, newAttr.nodeName, MutationEvent.ADDITION);
+ /*initMutationEventメソッドは軽量化のため省略する*/
+ evt.initEvent("DOMAttrModified", true, false);
+ evt.relatedNode = newAttr;
+ evt.newValue = newAttr.nodeValue;
+ evt.attrName = newAttr.nodeName;
} else {
evt.initMutationEvent("DOMAttrModified", true, false, newAttr, s.nodeValue, newAttr.nodeValue, newAttr.nodeName, MutationEvent.MODIFICATION);
}