未捕获的类型错误:无法读取未定义的属性“nodeName" [英] Uncaught TypeError: Cannot read property 'nodeName' of undefined

问题描述

这个问题只出现在joomla -

this problem appears only in joomla -

我正在尝试在我的 joomla 网站上使用 contentflow 插件

im trying to use the contentflow plugin with my joomla site

这是插件站点 - http://www.jacksasylum.eu/ContentFlow/

这是我的网站 - http://2-dweb.com/RND/

如您所见，它不起作用 - 它永远停留在加载阶段

as you can see it doesnt work - it just stays on the loading phase forever

经过仔细检查，我可以看到此代码存在问题:

upon closer inspection i can see that there is a problem with this code:

  if (this.content.nodeName == "IMG") {
    CFobj._imagesToLoad++;

    var foobar = function () { 
        CFobj._imagesToLoad--;
        this.image = this.content;
        this.setImageFormat(this.image);
        if ( CFobj.conf.reflectionHeight > 0) {
            this.addReflection();
        }
        this.initClick();
        CFobj._addItemCueProcess(true);
    }.bind(this);

    if (this.content.complete && this.content.width > 0)
        window.setTimeout(foobar, 100);
    else if (this.Browser.IE && !this.content.onload) {
        var self = this;
        var t = window.setInterval( function () {
            if (self.content.complete && self.content.width > 0) {
                window.clearInterval(t);
                foobar();
            }
        }, 10);
    }
    else
        this.content.onload = window.setTimeout(foobar, 100);
}
else {
    this.initClick();
    CFobj._addItemCueProcess(true);
}

};

第一行 - 它说未捕获的类型错误:无法读取未定义的属性‘nodeName’"

with the first line - it says "Uncaught TypeError: Cannot read property 'nodeName' of undefined "

但是这个东西在我的桌面 html 文件和插件站点上都有效！

but this thing works on my desktop html file and on the plugin site it self!

为什么它在我的 joomla 网站上不起作用?这不是冲突 - 我使用无冲突，我有其他有效的 jquery 插件

why doesnt it work on my joomla site? its not a conflict thing - im using no-conflict and i have other jquery plugins that work

更新:

rob w 帮我解决了这个错误:"将第一行改为 if (this.content && this.content.nodeName == "IMG") {.这样就解决了问题"

rob w helped me with this error: "Change the first line to if (this.content && this.content.nodeName == "IMG") {. That solves the problem"

确实如此，但现在出现另一个错误:

and it did, but now another error appears:

  initClick: function () {
        var cItem = this.clickItem;
        this[this._activeElement].addEvent('click', cItem, false);
    },

错误 - 未捕获的类型错误:无法调用未定义的方法addEvent"

the error - Uncaught TypeError: Cannot call method 'addEvent' of undefined

推荐答案

如错误解释Uncaught TypeError: Cannot read property 'nodeName' of undefined" 当脚本尝试访问该元素时，该元素不可用.您可以通过两种方式解决此问题.

As the error explains "Uncaught TypeError: Cannot read property 'nodeName' of undefined " The element is not available when the script tries to access it. You can solve this in two ways.

• 尝试使用 document.ready 包装代码.
• 您可以在访问之前检查该元素是否可用.要完成此操作，请使用 if 子句.

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