/*

 * jquery.simulate - simulate browser mouse and keyboard events

 *

 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)

 * Dual licensed under the MIT or GPL Version 2 licenses.

 * http://jquery.org/license

 *

 */

;(function($) {

$.fn.extend({

	simulate: function(type, options) {

		return this.each(function() {

			var opt = $.extend({}, $.simulate.defaults, options || {});

			new $.simulate(this, type, opt);

		});

	}

});

$.simulate = function(el, type, options) {

	this.target = el;

	this.options = options;

	if (/^drag$/.test(type)) {

		this[type].apply(this, [this.target, options]);

	} else {

		this.simulateEvent(el, type, options);

	}

}

$.extend($.simulate.prototype, {

	simulateEvent: function(el, type, options) {

		var evt = this.createEvent(type, options);

		this.dispatchEvent(el, type, evt, options);

		return evt;

	},

	createEvent: function(type, options) {

		if (/^mouse(over|out|down|up|move)|(dbl)?click$/.test(type)) {

			return this.mouseEvent(type, options);

		} else if (/^key(up|down|press)$/.test(type)) {

			return this.keyboardEvent(type, options);

		}

	},

	mouseEvent: function(type, options) {

		var evt;

		var e = $.extend({

			bubbles: true, cancelable: (type != "mousemove"), view: window, detail: 0,

			screenX: 0, screenY: 0, clientX: 0, clientY: 0,

			ctrlKey: false, altKey: false, shiftKey: false, metaKey: false,

			button: 0, relatedTarget: undefined

		}, options);

		var relatedTarget = $(e.relatedTarget)[0];

		if ($.isFunction(document.createEvent)) {

			evt = document.createEvent("MouseEvents");

			evt.initMouseEvent(type, e.bubbles, e.cancelable, e.view, e.detail,

				e.screenX, e.screenY, e.clientX, e.clientY,

				e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,

				e.button, e.relatedTarget || document.body.parentNode);

		} else if (document.createEventObject) {

			evt = document.createEventObject();

			$.extend(evt, e);

			evt.button = { 0:1, 1:4, 2:2 }[evt.button] || evt.button;

		}

		return evt;

	},

	keyboardEvent: function(type, options) {

		var evt;

		var e = $.extend({ bubbles: true, cancelable: true, view: window,

			ctrlKey: false, altKey: false, shiftKey: false, metaKey: false,

			keyCode: 0, charCode: 0

		}, options);

		if ($.isFunction(document.createEvent)) {

			try {

				evt = document.createEvent("KeyEvents");

				evt.initKeyEvent(type, e.bubbles, e.cancelable, e.view,

					e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,

					e.keyCode, e.charCode);

			} catch(err) {

				evt = document.createEvent("Events");

				evt.initEvent(type, e.bubbles, e.cancelable);

				$.extend(evt, { view: e.view,

					ctrlKey: e.ctrlKey, altKey: e.altKey, shiftKey: e.shiftKey, metaKey: e.metaKey,

					keyCode: e.keyCode, charCode: e.charCode

				});

			}

		} else if (document.createEventObject) {

			evt = document.createEventObject();

			$.extend(evt, e);

		}

		if ($.browser.msie || $.browser.opera) {

			evt.keyCode = (e.charCode > 0) ? e.charCode : e.keyCode;

			evt.charCode = undefined;

		}

		return evt;

	},

	dispatchEvent: function(el, type, evt) {

		if (el.dispatchEvent) {

			el.dispatchEvent(evt);

		} else if (el.fireEvent) {

			el.fireEvent('on' + type, evt);

		}

		return evt;

	},

	drag: function(el) {

		var self = this, center = this.findCenter(this.target), 

			options = this.options,	x = Math.floor(center.x), y = Math.floor(center.y), 

			dx = options.dx || 0, dy = options.dy || 0, target = this.target;

		var coord = { clientX: x, clientY: y };

		this.simulateEvent(target, "mousedown", coord);

		coord = { clientX: x + 1, clientY: y + 1 };

		this.simulateEvent(document, "mousemove", coord);

		coord = { clientX: x + dx, clientY: y + dy };

		this.simulateEvent(document, "mousemove", coord);

		this.simulateEvent(document, "mousemove", coord);

		this.simulateEvent(target, "mouseup", coord);

	},

	findCenter: function(el) {

		var el = $(this.target), o = el.offset();

		return {

			x: o.left + el.outerWidth() / 2,

			y: o.top + el.outerHeight() / 2

		};

	}

});

$.extend($.simulate, {

	defaults: {

		speed: 'sync'

	},

	VK_TAB: 9,

	VK_ENTER: 13,

	VK_ESC: 27,

	VK_PGUP: 33,

	VK_PGDN: 34,

	VK_END: 35,

	VK_HOME: 36,

	VK_LEFT: 37,

	VK_UP: 38,

	VK_RIGHT: 39,

	VK_DOWN: 40

});

})(jQuery);