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/*
* jquery.simulate - simulate browser mouse and keyboard events
*
* Copyright (c) 2007 Eduardo Lundgren (eduardolundgren@gmail.com)
* and Richard D. Worth (rdworth@gmail.com)
*
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
*
*/
;(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) {
// creates a individual option for each simulation inside this instance
options = $.extend({}, this.options, options);
var evt = this.createEvent(type, options);
return this.dispatchEvent(el, type, evt, options);
},
createEvent: function(type, options) {
if (/^mouse(over|out|down|up|move)|(dbl)?click$/.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: options.x || 0, clientY: options.y || 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, options) {
if (el.dispatchEvent) {
el.dispatchEvent(evt);
} else if (el.fireEvent) {
el.fireEvent('on' + type, evt);
}
// trigget complete for all events - not drag.
this.triggerComplete(evt, options);
return evt;
},
drag: function(el) {
var self = this, center = this.findCenter(this.target),
options = this.options, x = center.x, y = center.y,
dx = options.dx || 0, dy = options.dy || 0, target = this.target;
var coord = { x: x, y: y, complete: null }, evt;
this.simulateEvent(target, "mouseover", coord);
this.simulateEvent(target, "mousedown", coord);
var drag = function(x, y) {
evt = self.simulateEvent(target, "mousemove", $.extend(coord, { x: x, y: y }));
// triggering drag callback
(self.options.drag && self.options.drag($.event.fix(evt)));
};
if (/^sync$/.test(options.speed)) {
// trigger synchronous simulation
this.triggerSync(center, dx, dy, drag);
}
else {
// trigger asynchronous simulation - animated
this.triggerAsync(center, dx, dy, drag);
}
this.simulateEvent(target, "mouseup", coord);
this.simulateEvent(target, "mouseout", coord);
this.triggerComplete(evt, options);
},
triggerComplete: function(evt, options) {
evt = $.event.fix(evt);
(options.complete && options.complete(evt)); return evt;
},
triggerSync: function(center, dx, dy, fn) {
var x = center.x, y = center.y, mdx = Math.abs(dx) || 0, mdy = Math.abs(dy) || 0;
var range = Math.max(mdx, mdy), sigx = dx/mdx || 1, sigy = dy/mdy || 1;
for (var dt = 1; dt <= range; dt++) {
if (dt <= mdx) x = center.x + sigx*dt;
if (dt <= mdy) y = center.y + sigy*dt;
(fn && fn(x, y));
}
},
triggerAsync: function(center, dx, dy, fn) {
/*TODO*/
// this method just have to call: (fn && fn(x, y));
// return the x, y of the mousemove.
// idea: $.animate({ step: function() { var x,y; (fn && fn(x, y)); } });
},
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'
}
});
})(jQuery);
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