覆盖jQuery插件方法，默认情况下且针对单个实例 [英] Overriding jQuery plugin methods, as default and for single instances

问题描述

基本问题是:如何在不编辑原始插件文件的情况下执行插件方法的基本覆盖?

The basic question is: How do I perform a basic override of a plugin method without editing the original plugin file?

是否可以为特定实例创建替代:

Is it possible to create an override for a specific instance:

示例: rtf插件使用:

Example: An rtf plugin uses:

$('selector').wysiwyg('setContent',newContent);

为了将rtf文本显示为只读，我希望将相同的方法应用于div而不是IFRAME的正文

In order to display the rtf text as readonly I would like for the same method to be applied to a div instead of the body of the IFRAME

我想用我自己的代码覆盖原始的'setContent'，仅用于此元素.

I would like to overwrite the original 'setContent' with my own code, just for this one element.

谢谢

推荐答案

(function($){

var _oldcss = $.fn.css;

$.fn.css = function(prop,value){

    if (value.toLowerCase() === 'somecolor') {
       return _oldcss.call(this,prop,'#EA7E5D');
    } else {
       return _oldcss.apply(this,arguments);
    }
};
})(jQuery);

您可以通过这种方式轻松地覆盖(我喜欢称其为半挂钩)功能. 在此示例中，您覆盖了.css() jQuery函数并返回一个自定义值 的值等于"somecolor"，否则，原始函数将被调用 传递的参数.

You can easily overwrite (I like to call it semi-hooking) functions in that manner. In this example, you overwrite the .css() jQuery function and return a custom value of your value equals 'somecolor', otherwise, the original function is called with passed arguments.

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