我正在尝试使用我发现的jQuery脚本
http://swip.codylindley.com/DOMWindowDemo.html
在我的网站上,当访问者点击链接时创建一个灯箱/ domwindow弹出窗口.
不幸的是,当用户关闭dom窗口时,脚本似乎没有释放内存.如果用户多次打开和关闭窗口,则会导致页面显着减慢并使用户的浏览器崩溃.
这是上面网站的jQuery脚本：
(function($){
//closeDOMWindow
$.fn.closeDOMWindow = function(settings){
if(!settings){settings={};}
var run = function(passingThis){
if(settings.anchoredClassName){
var $anchorClassName = $('.'+settings.anchoredClassName);
$anchorClassName.fadeOut('fast',function(){
if($.fn.draggable){
$anchorClassName.draggable('destory').trigger("unload").remove();
}else{
$anchorClassName.trigger("unload").remove();
}
});
if(settings.functionCallOnClose) {
settings.functionCallAfterClose();
}
}else{
var $DOMWindowOverlay = $('#DOMWindowOverlay');
var $DOMWindow = $('#DOMWindow');
$DOMWindowOverlay.fadeOut('fast',function(){
$DOMWindowOverlay.trigger('unload').unbind().remove();
});
$DOMWindow.fadeOut('fast',function(){
if($.fn.draggable){
$DOMWindow.draggable("destroy").trigger("unload").remove();
}else{
$DOMWindow.trigger("unload").remove();
}
});
$(window).unbind('scroll.DOMWindow');
$(window).unbind('resize.DOMWindow');
if($.fn.openDOMWindow.isIE6){$('#DOMWindowIE6FixIframe').remove();}
if(settings.functionCallOnClose){settings.functionCallAfterClose();}
}
};
if(settings.eventType){//if used with $().
return this.each(function(index){
$(this).bind(settings.eventType, function(){
run(this);
return false;
});
});
}else{//else called as $.function
run();
}
};
//allow for public call, pass settings
$.closeDOMWindow = function(s){$.fn.closeDOMWindow(s);};
//openDOMWindow
$.fn.openDOMWindow = function(instanceSettings){
var shortcut = $.fn.openDOMWindow;
//default settings combined with callerSettings////////////////////////////////////////////////////////////////////////
shortcut.defaultsSettings = {
anchoredClassName:'',
anchoredSelector:'',
borderColor:'#ccc',
borderSize:'4',
draggable:0,
eventType:null, //click, blur, change, dblclick, error, focus, load, mousedown, mouseout, mouseup etc...
fixedWindowY:100,
functionCallOnOpen:null,
functionCallOnClose:null,
height:500,
loader:0,
loaderHeight:0,
loaderImagePath:'',
loaderWidth:0,
modal:0,
overlay:1,
overlayColor:'#000',
overlayOpacity:'85',
positionLeft:0,
positionTop:0,
positionType:'centered', // centered, anchored, absolute, fixed
width:500,
windowBGColor:'#fff',
windowBGImage:null, // http path
windowHTTPType:'get',
windowPadding:10,
windowSource:'inline', //inline, ajax, iframe
windowSourceID:'',
windowSourceURL:'',
windowSourceAttrURL:'href'
};
var settings = $.extend({}, $.fn.openDOMWindow.defaultsSettings , instanceSettings || {});
//Public functions
shortcut.viewPortHeight = function(){ return self.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;};
shortcut.viewPortWidth = function(){ return self.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;};
shortcut.scrollOffsetHeight = function(){ return self.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop;};
shortcut.scrollOffsetWidth = function(){ return self.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft;};
shortcut.isIE6 = typeof document.body.style.maxHeight === "undefined";
//Private Functions/////////////////////////////////////////////////////////////////////////////////////////////////////////
var sizeOverlay = function(){
var $DOMWindowOverlay = $('#DOMWindowOverlay');
if(shortcut.isIE6){//if IE 6
var overlayViewportHeight = document.documentElement.offsetHeight + document.documentElement.scrollTop - 4;
var overlayViewportWidth = document.documentElement.offsetWidth - 21;
$DOMWindowOverlay.css({'height':overlayViewportHeight +'px','width':overlayViewportWidth+'px'});
}else{//else Firefox, safari, opera, IE 7+
$DOMWindowOverlay.css({'height':'100%','width':'100%','position':'fixed'});
}
};
var sizeIE6Iframe = function(){
var overlayViewportHeight = document.documentElement.offsetHeight + document.documentElement.scrollTop - 4;
var overlayViewportWidth = document.documentElement.offsetWidth - 21;
$('#DOMWindowIE6FixIframe').css({'height':overlayViewportHeight +'px','width':overlayViewportWidth+'px'});
};
var centerDOMWindow = function() {
var $DOMWindow = $('#DOMWindow');
if(settings.height + 50 > shortcut.viewPortHeight()){//added 50 to be safe
$DOMWindow.css('left',Math.round(shortcut.viewPortWidth()/2) + shortcut.scrollOffsetWidth() - Math.round(($DOMWindow.outerWidth())/2));
}else{
$DOMWindow.css('left',Math.round(shortcut.viewPortWidth()/2) + shortcut.scrollOffsetWidth() - Math.round(($DOMWindow.outerWidth())/2));
$DOMWindow.css('top',Math.round(shortcut.viewPortHeight()/2) + shortcut.scrollOffsetHeight() - Math.round(($DOMWindow.outerHeight())/2));
}
};
var centerLoader = function() {
var $DOMWindowLoader = $('#DOMWindowLoader');
if(shortcut.isIE6){//if IE 6
$DOMWindowLoader.css({'left':Math.round(shortcut.viewPortWidth()/2) + shortcut.scrollOffsetWidth() - Math.round(($DOMWindowLoader.innerWidth())/2),'position':'absolute'});
$DOMWindowLoader.css({'top':Math.round(shortcut.viewPortHeight()/2) + shortcut.scrollOffsetHeight() - Math.round(($DOMWindowLoader.innerHeight())/2),'position':'absolute'});
}else{
$DOMWindowLoader.css({'left':'50%','top':'50%','position':'fixed'});
}
};
var fixedDOMWindow = function(){
var $DOMWindow = $('#DOMWindow');
$DOMWindow.css('left', settings.positionLeft + shortcut.scrollOffsetWidth());
$DOMWindow.css('top', + settings.positionTop + shortcut.scrollOffsetHeight());
};
var showDOMWindow = function(instance){
if(arguments[0]){
$('.'+instance+' #DOMWindowLoader').remove();
$('.'+instance+' #DOMWindowContent').fadeIn('fast',function(){if(settings.functionCallOnOpen){settings.functionCallOnOpen();}});
$('.'+instance+ '.closeDOMWindow').click(function(){
$.closeDOMWindow();
return false;
});
}else{
$('#DOMWindowLoader').remove();
$('#DOMWindow').fadeIn('fast',function(){if(settings.functionCallOnOpen){settings.functionCallOnOpen();}});
$('#DOMWindow .closeDOMWindow').click(function(){
$.closeDOMWindow();
return false;
});
}
};
var urlQueryToObject = function(s){
var query = {};
s.replace(/b([^&=]*)=([^&=]*)b/g, function (m, a, d) {
if (typeof query[a] != 'undefined') {
query[a] += ',' + d;
} else {
query[a] = d;
}
});
return query;
};
//Run Routine ///////////////////////////////////////////////////////////////////////////////////////////////////////////////
var run = function(passingThis){
//get values from element clicked, or assume its passed as an option
settings.windowSourceID = $(passingThis).attr('href') || settings.windowSourceID;
settings.windowSourceURL = $(passingThis).attr(settings.windowSourceAttrURL) || settings.windowSourceURL;
settings.windowBGImage = settings.windowBGImage ? 'background-image:url('+settings.windowBGImage+')' : '';
var urlOnly, urlQueryObject;
if(settings.positionType == 'anchored'){//anchored DOM window
var anchoredPositions = $(settings.anchoredSelector).position();
var anchoredPositionX = anchoredPositions.left + settings.positionLeft;
var anchoredPositionY = anchoredPositions.top + settings.positionTop;
$('body').append('<div class="'+settings.anchoredClassName+'" style="'+settings.windowBGImage+';background-repeat:no-repeat;padding:'+settings.windowPadding+'px;overflow:auto;position:absolute;top:'+anchoredPositionY+'px;left:'+anchoredPositionX+'px;height:'+settings.height+'px;width:'+settings.width+'px;background-color:'+settings.windowBGColor+';border:'+settings.borderSize+'px solid '+settings.borderColor+';z-index:10001"><div id="DOMWindowContent" style="display:none"></div></div>');
//loader
if(settings.loader && settings.loaderImagePath !== ''){
$('.'+settings.anchoredClassName).append('<div id="DOMWindowLoader" style="width:'+settings.loaderWidth+'px;height:'+settings.loaderHeight+'px;"><img src="'+settings.loaderImagePath+'" /></div>');
}
if($.fn.draggable){
if(settings.draggable){$('.' + settings.anchoredClassName).draggable({cursor:'move'});}
}
switch(settings.windowSource){
case 'inline'://////////////////////////////// inline //////////////////////////////////////////
$('.' + settings.anchoredClassName+" #DOMWindowContent").append($(settings.windowSourceID).children());
$('.' + settings.anchoredClassName).unload(function(){// move elements back when you're finished
$('.' + settings.windowSourceID).append( $('.' + settings.anchoredClassName+" #DOMWindowContent").children());
});
showDOMWindow(settings.anchoredClassName);
break;
case 'iframe'://////////////////////////////// iframe //////////////////////////////////////////
$('.' + settings.anchoredClassName+" #DOMWindowContent").append('<iframe frameborder="0" hspace="0" wspace="0" src="'+settings.windowSourceURL+'" name="DOMWindowIframe'+Math.round(Math.random()*1000)+'" style="width:100%;height:100%;border:none;background-color:#fff;" class="'+settings.anchoredClassName+'Iframe" ></iframe>');
$('.'+settings.anchoredClassName+'Iframe').load(showDOMWindow(settings.anchoredClassName));
break;
case 'ajax'://////////////////////////////// ajax //////////////////////////////////////////
if(settings.windowHTTPType == 'post'){
if(settings.windowSourceURL.indexOf("?") !== -1){//has a query string
urlOnly = settings.windowSourceURL.substr(0, settings.windowSourceURL.indexOf("?"));
urlQueryObject = urlQueryToObject(settings.windowSourceURL);
}else{
urlOnly = settings.windowSourceURL;
urlQueryObject = {};
}
$('.' + settings.anchoredClassName+" #DOMWindowContent").load(urlOnly,urlQueryObject,function(){
showDOMWindow(settings.anchoredClassName);
});
}else{
if(settings.windowSourceURL.indexOf("?") == -1){ //no query string, so add one
settings.windowSourceURL += '?';
}
$('.' + settings.anchoredClassName+" #DOMWindowContent").load(
settings.windowSourceURL + '&random=' + (new Date().getTime()),function(){
showDOMWindow(settings.anchoredClassName);
});
}
break;
}
}else{//centered, fixed, absolute DOM window
//overlay & modal
if(settings.overlay){
$('body').append('<div id="DOMWindowOverlay" style="z-index:10000;display:none;position:absolute;top:0;left:0;background-color:'+settings.overlayColor+';filter:alpha(opacity='+settings.overlayOpacity+');-moz-opacity: 0.'+settings.overlayOpacity+';opacity: 0.'+settings.overlayOpacity+';"></div>');
if(shortcut.isIE6){//if IE 6
$('body').append('<iframe id="DOMWindowIE6FixIframe" src="blank.html" style="width:100%;height:100%;z-index:9999;position:absolute;top:0;left:0;filter:alpha(opacity=0);"></iframe>');
sizeIE6Iframe();
}
sizeOverlay();
var $DOMWindowOverlay = $('#DOMWindowOverlay');
$DOMWindowOverlay.fadeIn('fast');
if(!settings.modal){$DOMWindowOverlay.click(function(){$.closeDOMWindow();});}
}
//loader
if(settings.loader && settings.loaderImagePath !== ''){
$('body').append('<div id="DOMWindowLoader" style="z-index:10002;width:'+settings.loaderWidth+'px;height:'+settings.loaderHeight+'px;"><img src="'+settings.loaderImagePath+'" /></div>');
centerLoader();
}
//add DOMwindow
$('body').append('<div id="DOMWindow" style="background-repeat:no-repeat;'+settings.windowBGImage+';overflow:auto;padding:'+settings.windowPadding+'px;display:none;height:'+settings.height+'px;width:'+settings.width+'px;background-color:'+settings.windowBGColor+';border:'+settings.borderSize+'px solid '+settings.borderColor+'; position:absolute;z-index:10001"></div>');
var $DOMWindow = $('#DOMWindow');
//centered, absolute, or fixed
switch(settings.positionType){
case 'centered':
centerDOMWindow();
if(settings.height + 50 > shortcut.viewPortHeight()){//added 50 to be safe
$DOMWindow.css('top', (settings.fixedWindowY + shortcut.scrollOffsetHeight()) + 'px');
}
break;
case 'absolute':
$DOMWindow.css({'top':(settings.positionTop+shortcut.scrollOffsetHeight())+'px','left':(settings.positionLeft+shortcut.scrollOffsetWidth())+'px'});
if($.fn.draggable){
if(settings.draggable){$DOMWindow.draggable({cursor:'move'});}
}
break;
case 'fixed':
fixedDOMWindow();
break;
case 'anchoredSingleWindow':
var anchoredPositions = $(settings.anchoredSelector).position();
var anchoredPositionX = anchoredPositions.left + settings.positionLeft;
var anchoredPositionY = anchoredPositions.top + settings.positionTop;
$DOMWindow.css({'top':anchoredPositionY + 'px','left':anchoredPositionX+'px'});
break;
}
$(window).bind('scroll.DOMWindow',function(){
if(settings.overlay){sizeOverlay();}
if(shortcut.isIE6){sizeIE6Iframe();}
if(settings.positionType == 'centered'){centerDOMWindow();}
if(settings.positionType == 'fixed'){fixedDOMWindow();}
});
$(window).bind('resize.DOMWindow',function(){
if(shortcut.isIE6){sizeIE6Iframe();}
if(settings.overlay){sizeOverlay();}
if(settings.positionType == 'centered'){centerDOMWindow();}
});
switch(settings.windowSource){
case 'inline'://////////////////////////////// inline //////////////////////////////////////////
$DOMWindow.append($(settings.windowSourceID).children());
$DOMWindow.unload(function(){// move elements back when you're finished
$(settings.windowSourceID).append($DOMWindow.children());
});
showDOMWindow();
break;
case 'iframe'://////////////////////////////// iframe //////////////////////////////////////////
$DOMWindow.append('<iframe frameborder="0" hspace="0" wspace="0" src="'+settings.windowSourceURL+'" name="DOMWindowIframe'+Math.round(Math.random()*1000)+'" style="width:100%;height:100%;border:none;background-color:#fff;" id="DOMWindowIframe" ></iframe>');
$('#DOMWindowIframe').load(showDOMWindow());
break;
case 'ajax'://////////////////////////////// ajax //////////////////////////////////////////
if(settings.windowHTTPType == 'post'){
if(settings.windowSourceURL.indexOf("?") !== -1){//has a query string
urlOnly = settings.windowSourceURL.substr(0, settings.windowSourceURL.indexOf("?"));
urlQueryObject = urlQueryToObject(settings.windowSourceURL);
}else{
urlOnly = settings.windowSourceURL;
urlQueryObject = {};
}
$DOMWindow.load(urlOnly,urlQueryObject,function(){
showDOMWindow();
});
}else{
if(settings.windowSourceURL.indexOf("?") == -1){ //no query string, so add one
settings.windowSourceURL += '?';
}
$DOMWindow.load(
settings.windowSourceURL + '&random=' + (new Date().getTime()),function(){
showDOMWindow();
});
}
break;
}
}//end if anchored, or absolute, fixed, centered
};//end run()
if(settings.eventType){//if used with $().
return this.each(function(index){
$(this).bind(settings.eventType,function(){
run(this);
return false;
});
});
}else{//else called as $.function
run();
}
};//end function openDOMWindow
//allow for public call, pass settings
$.openDOMWindow = function(s){$.fn.openDOMWindow(s);};
})(jQuery);
这是我的HTML中的超链接标记打开了灯箱.
<a href="/php/ajax/edit_map_pin.htm?mAddressBox0=FALSE&mPin_ID=foo" class="AjaxDOMWindow">Change Icon</a>
以下是siege的屏幕截图,详细说明了每次用户打开并从该链接关闭DOM窗口时内存步长的增加.任何帮助是极大的赞赏.谢谢！
解决方法:
问题是,remove()从文档树中删除节点,但它们仍然可用(例如,您可以再次使用它们并将它们放回到文档中).
在MSIE中,您可以将节点的outerHTML属性设置为空字符串以真正删除它们,在其他浏览器中我不确定如何.你可以看一下：http://www.josh-davis.org/node/7.
作者在那里使用了delete-statement,但我不确定它是否真的删除了节点.
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