/*** jQuery UI droppable performance tune for elFinder ***/
(function(){
if ($.ui) {
	if ($.ui.ddmanager) {
		var origin = $.ui.ddmanager.prepareOffsets;
		$.ui.ddmanager.prepareOffsets = function( t, event ) {
			var isOutView = function(elem) {
				if (elem.is(':hidden')) {
					return true;
				}
				var rect = elem[0].getBoundingClientRect();
				return document.elementFromPoint(rect.left, rect.top)? false : true;
			}
			
			if (event.type === 'mousedown' || t.options.elfRefresh) {
				var i, d,
				m = $.ui.ddmanager.droppables[ t.options.scope ] || [],
				l = m.length;
				for ( i = 0; i < l; i++ ) {
					d = m[ i ];
					if (d.options.autoDisable && (!d.options.disabled || d.options.autoDisable > 1)) {
						d.options.disabled = isOutView(d.element);
						d.options.autoDisable = d.options.disabled? 2 : 1;
					}
				}
			}
			
			// call origin function
			return origin( t, event );
		};
	}
}
})();

/*!
 * jQuery UI Touch Punch 0.2.3
 *
 * Copyright 2011–2014, Dave Furfero
 * Dual licensed under the MIT or GPL Version 2 licenses.
 *
 * Depends:
 *	jquery.ui.widget.js
 *	jquery.ui.mouse.js
 */
(function ($) {

  // Detect touch support
  $.support.touch = 'ontouchend' in document;

  // Ignore browsers without touch support
  if (!$.support.touch) {
	return;
  }

  var mouseProto = $.ui.mouse.prototype,
	  _mouseInit = mouseProto._mouseInit,
	  _mouseDestroy = mouseProto._mouseDestroy,
	  touchHandled,
	  posX, posY;

  /**
   * Simulate a mouse event based on a corresponding touch event
   * @param {Object} event A touch event
   * @param {String} simulatedType The corresponding mouse event
   */
  function simulateMouseEvent (event, simulatedType) {

	// Ignore multi-touch events
	if (event.originalEvent.touches.length > 1) {
	  return;
	}

	if (! $(event.currentTarget).hasClass('touch-punch-keep-default')) {
		event.preventDefault();
	}

	var touch = event.originalEvent.changedTouches[0],
		simulatedEvent = document.createEvent('MouseEvents');
	
	// Initialize the simulated mouse event using the touch event's coordinates
	simulatedEvent.initMouseEvent(
	  simulatedType,	// type
	  true,				// bubbles					  
	  true,				// cancelable				  
	  window,			// view						  
	  1,				// detail					  
	  touch.screenX,	// screenX					  
	  touch.screenY,	// screenY					  
	  touch.clientX,	// clientX					  
	  touch.clientY,	// clientY					  
	  false,			// ctrlKey					  
	  false,			// altKey					  
	  false,			// shiftKey					  
	  false,			// metaKey					  
	  0,				// button					  
	  null				// relatedTarget			  
	);

	// Dispatch the simulated event to the target element
	event.target.dispatchEvent(simulatedEvent);
  }

  /**
   * Handle the jQuery UI widget's touchstart events
   * @param {Object} event The widget element's touchstart event
   */
  mouseProto._touchStart = function (event) {

	var self = this;

	// Ignore the event if another widget is already being handled
	if (touchHandled || !self._mouseCapture(event.originalEvent.changedTouches[0])) {
	  return;
	}

	// Track element position to avoid "false" move
	posX = event.originalEvent.changedTouches[0].screenX.toFixed(0);
	posY = event.originalEvent.changedTouches[0].screenY.toFixed(0);

	// Set the flag to prevent other widgets from inheriting the touch event
	touchHandled = true;

	// Track movement to determine if interaction was a click
	self._touchMoved = false;

	// Simulate the mouseover event
	simulateMouseEvent(event, 'mouseover');

	// Simulate the mousemove event
	simulateMouseEvent(event, 'mousemove');

	// Simulate the mousedown event
	simulateMouseEvent(event, 'mousedown');
  };

  /**
   * Handle the jQuery UI widget's touchmove events
   * @param {Object} event The document's touchmove event
   */
  mouseProto._touchMove = function (event) {

	// Ignore event if not handled
	if (!touchHandled) {
	  return;
	}

	// Ignore if it's a "false" move (position not changed)
	var x = event.originalEvent.changedTouches[0].screenX.toFixed(0);
	var y = event.originalEvent.changedTouches[0].screenY.toFixed(0);
	// Ignore if it's a "false" move (position not changed)
	if (Math.abs(posX - x) <= 4 && Math.abs(posY - y) <= 4) {
		return;
	}

	// Interaction was not a click
	this._touchMoved = true;

	// Simulate the mousemove event
	simulateMouseEvent(event, 'mousemove');
  };

  /**
   * Handle the jQuery UI widget's touchend events
   * @param {Object} event The document's touchend event
   */
  mouseProto._touchEnd = function (event) {

	// Ignore event if not handled
	if (!touchHandled) {
	  return;
	}

	// Simulate the mouseup event
	simulateMouseEvent(event, 'mouseup');

	// Simulate the mouseout event
	simulateMouseEvent(event, 'mouseout');

	// If the touch interaction did not move, it should trigger a click
	if (!this._touchMoved) {

	  // Simulate the click event
	  simulateMouseEvent(event, 'click');
	}

	// Unset the flag to allow other widgets to inherit the touch event
	touchHandled = false;
	this._touchMoved = false;
  };

  /**
   * A duck punch of the $.ui.mouse _mouseInit method to support touch events.
   * This method extends the widget with bound touch event handlers that
   * translate touch events to mouse events and pass them to the widget's
   * original mouse event handling methods.
   */
  mouseProto._mouseInit = function () {
	
	var self = this;

	if (self.element.hasClass('touch-punch')) {
		// Delegate the touch handlers to the widget's element
		self.element.on({
		  touchstart: $.proxy(self, '_touchStart'),
		  touchmove: $.proxy(self, '_touchMove'),
		  touchend: $.proxy(self, '_touchEnd')
		});
	}

	// Call the original $.ui.mouse init method
	_mouseInit.call(self);
  };

  /**
   * Remove the touch event handlers
   */
  mouseProto._mouseDestroy = function () {
	
	var self = this;

	if (self.element.hasClass('touch-punch')) {
		// Delegate the touch handlers to the widget's element
		self.element.off({
		  touchstart: $.proxy(self, '_touchStart'),
		  touchmove: $.proxy(self, '_touchMove'),
		  touchend: $.proxy(self, '_touchEnd')
		});
	}

	// Call the original $.ui.mouse destroy method
	_mouseDestroy.call(self);
  };

})(jQuery);

$.fn.elfinder = function(o, o2) {
	
	if (o === 'instance') {
		return this.getElFinder();
	}
	
	return this.each(function() {
		
		var cmd = typeof(o) == 'string' ? o : '',
			opts;
		
		if (!this.elfinder) {
			if ($.isPlainObject(o)) {
				new elFinder(this, o);
			}
		} else {
			switch(cmd) {
				case 'close':
				case 'hide':
					this.elfinder.hide();
					break;
					
				case 'open':
				case 'show':
					this.elfinder.show();
					break;
					
				case 'destroy':
					this.elfinder.destroy();
					break;
				
				case 'reload':
				case 'restart':
					if (this.elfinder) {
						opts = this.elfinder.options;
						this.elfinder.destroy();
						new elFinder(this, $.extend(true, opts, $.isPlainObject(o2)? o2 : {}));
					}
					break;
			}
		}
	});
};

$.fn.getElFinder = function() {
	var instance;
	
	this.each(function() {
		if (this.elfinder) {
			instance = this.elfinder;
			return false;
		}
	});
	
	return instance;
};

$.fn.elfUiWidgetInstance = function(name) {
	try {
		return this[name]('instance');
	} catch(e) {
		// fallback for jQuery UI < 1.11
		var data = this.data('ui-' + name);
		if (data && typeof data === 'object' && data.widgetFullName === 'ui-' + name) {
			return data;
		}
		return null;
	}
};
