我正在使用 jQuery 的事件系统来允许外部代码驱动我的插件。在我的事件处理程序中,“this”设置为事件绑定到的元素,那么我自己访问插件方法的最佳方式是什么?
;(function($, window, document, undefined){
var pluginName = "book";
// Standard constructor
function Plugin(element, options){
this.element = element;
this.options = $.extend({}, defaults, options);
this.init();
}
// Simple init
Plugin.prototype.init = function(){
this.setBindings();
}
// Tie local methods to event channels
// so that external code can drive the plugin.
Plugin.prototype.setBindings = function(){
var events = {
'book-open' : this.open,
'book-next-page' : this.toNext,
'book-prev-page' : this.toPrev,
'book-cover' : this.toFront,
'book-back' : this.toBack
}
for(event in events){
var fn = events[event];
console.log(event);
this.$element.on(event, fn);
}
};
// Event Handlers
Plugin.prototype.open = function(){
// when called externally 'this' refers
// to the element the plugin was intialized on.
// I want to be able to call the plugin's 'private'
// methods, like someMethod() below.
};
/* .... other event handlers ... */
// 'Private' plugin methods
Plugin.prototype.someMethod = function(){
// do something
}
// Wrap and return technique from @ajpiano & @addyosmani
$.fn[pluginName] = function ( options ) {
return this.each(function () {
if ( !$.data(this, "plugin_" + pluginName )) {
$.data( this, "plugin_" + pluginName,
new Plugin( this, options ));
}
});
}
})(jQuery, window, document);