Question

How to extend a jQuery plugin?

currently I am using multiopen accordion plugin.

I need to add new feature like once the expand/collapse is finished I need to callback a function as like change event in jquery ui accordion plugin.

How to add this feature in this plugin.

Answer 1

$.extend($.ui.multiAccordion, {    
    // private helper method that used to show tabs
    _showTab: function($this) {
        var $span = $this.children('span.ui-icon');
        var $div = $this.next();
        var options = this.options;
        $this.removeClass('ui-state-default ui-corner-all').addClass('ui-state-active ui-corner-top');
        $span.removeClass('ui-icon-triangle-1-e').addClass('ui-icon-triangle-1-s');
        // MODIIFICATION
        bindThis = this;
        var ui = {
            tab: $this,
            content: $this.next('div')
        }
        $div.slideDown('fast', function(){
            $div.addClass(options._classes.divActive);
            // MODIFICATION
            bindThis._trigger('tabShownComplete');
        });
        this._trigger('tabShown', null, ui);
    },

    // private helper method that used to show tabs 
    _hideTab: function($this) {
        var $span = $this.children('span.ui-icon');
        var $div = $this.next();
        var options = this.options;
        $this.removeClass('ui-state-active ui-corner-top').addClass('ui-state-default ui-corner-all');
        $span.removeClass('ui-icon-triangle-1-s').addClass('ui-icon-triangle-1-e');
        // MODIIFICATION
        bindThis = this;
        var ui = {
            tab: $this,
            content: $this.next('div')
        }
        $div.slideUp('fast', function(){
            $div.removeClass(options._classes.divActive);
            // MODIFICATION
            bindThis._trigger('tabHiddenComplete', null, ui);
        });
        this._trigger('tabHidden', null, ui);
    }
});

• https://gist.github.com/4342758