Creating a custom jQuery widget:
jQuery.widget("ui.test",{
_init: function(){
$(this.element).click(this.showPoint);
},
showPoint: function(E){
E.stopPropagation();
alert(this.options.dir);
}
}
Initializing the custom widget:
$('#someEleme').test();
The current implementation of the options object in the showPoint event handler lacks definition. What is the correct method to pass this value within a jQuery widget?
The importance lies within the environment in which the function showPoint is invoked. In this scenario, the function is assigned to the jQuery event handler, causing jQuery to execute the function within the scope of the event.target element. To override this behavior, you can utilize jQuery.proxy(). Implementing this solution in your code would appear as follows:
jQuery.widget("ui.test",{
_init: function(){
$(this.element).click($.proxy(this.showPoint, this));
},
showPoint: function(E){
E.stopPropagation();
alert(this.options.dir);
}
}
It's worth noting that by implementing jQuery proxy, it will modify the this variable within the showPoint function. This means that typical calls such as $(this).hide() will not work. Instead, you should use $(E.target).hide() or even $(this.element).hide().
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