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/*
Copyright (c) 2010, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
version: 2.8.2r1
*/
/**
* DOM event simulation utility
* @module event-simulate
* @namespace YAHOO.util
* @requires yahoo,dom,event
*/
/**
* The UserAction object provides functions that simulate events occurring in
* the browser. Since these are simulated events, they do not behave exactly
* as regular, user-initiated events do, but can be used to test simple
* user interactions safely.
*
* @namespace YAHOO.util
* @class UserAction
* @static
*/
YAHOO.util.UserAction = {
//--------------------------------------------------------------------------
// Generic event methods
//--------------------------------------------------------------------------
/**
* Simulates a key event using the given event information to populate
* the generated event object. This method does browser-equalizing
* calculations to account for differences in the DOM and IE event models
* as well as different browser quirks. Note: keydown causes Safari 2.x to
* crash.
* @method simulateKeyEvent
* @private
* @static
* @param {HTMLElement} target The target of the given event.
* @param {String} type The type of event to fire. This can be any one of
* the following: keyup, keydown, and keypress.
* @param {Boolean} bubbles (Optional) Indicates if the event can be
* bubbled up. DOM Level 3 specifies that all key events bubble by
* default. The default is true.
* @param {Boolean} cancelable (Optional) Indicates if the event can be
* canceled using preventDefault(). DOM Level 3 specifies that all
* key events can be cancelled. The default
* is true.
* @param {Window} view (Optional) The view containing the target. This is
* typically the window object. The default is window.
* @param {Boolean} ctrlKey (Optional) Indicates if one of the CTRL keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} altKey (Optional) Indicates if one of the ALT keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} shiftKey (Optional) Indicates if one of the SHIFT keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} metaKey (Optional) Indicates if one of the META keys
* is pressed while the event is firing. The default is false.
* @param {int} keyCode (Optional) The code for the key that is in use.
* The default is 0.
* @param {int} charCode (Optional) The Unicode code for the character
* associated with the key being used. The default is 0.
*/
simulateKeyEvent : function (target /*:HTMLElement*/, type /*:String*/,
bubbles /*:Boolean*/, cancelable /*:Boolean*/,
view /*:Window*/,
ctrlKey /*:Boolean*/, altKey /*:Boolean*/,
shiftKey /*:Boolean*/, metaKey /*:Boolean*/,
keyCode /*:int*/, charCode /*:int*/) /*:Void*/
{
//check target
target = YAHOO.util.Dom.get(target);
if (!target){
throw new Error("simulateKeyEvent(): Invalid target.");
}
//check event type
if (YAHOO.lang.isString(type)){
type = type.toLowerCase();
switch(type){
case "keyup":
case "keydown":
case "keypress":
break;
case "textevent": //DOM Level 3
type = "keypress";
break;
// @TODO was the fallthrough intentional, if so throw error
default:
throw new Error("simulateKeyEvent(): Event type '" + type + "' not supported.");
}
} else {
throw new Error("simulateKeyEvent(): Event type must be a string.");
}
//setup default values
if (!YAHOO.lang.isBoolean(bubbles)){
bubbles = true; //all key events bubble
}
if (!YAHOO.lang.isBoolean(cancelable)){
cancelable = true; //all key events can be cancelled
}
if (!YAHOO.lang.isObject(view)){
view = window; //view is typically window
}
if (!YAHOO.lang.isBoolean(ctrlKey)){
ctrlKey = false;
}
if (!YAHOO.lang.isBoolean(altKey)){
altKey = false;
}
if (!YAHOO.lang.isBoolean(shiftKey)){
shiftKey = false;
}
if (!YAHOO.lang.isBoolean(metaKey)){
metaKey = false;
}
if (!YAHOO.lang.isNumber(keyCode)){
keyCode = 0;
}
if (!YAHOO.lang.isNumber(charCode)){
charCode = 0;
}
//try to create a mouse event
var customEvent /*:MouseEvent*/ = null;
//check for DOM-compliant browsers first
if (YAHOO.lang.isFunction(document.createEvent)){
try {
//try to create key event
customEvent = document.createEvent("KeyEvents");
/*
* Interesting problem: Firefox implemented a non-standard
* version of initKeyEvent() based on DOM Level 2 specs.
* Key event was removed from DOM Level 2 and re-introduced
* in DOM Level 3 with a different interface. Firefox is the
* only browser with any implementation of Key Events, so for
* now, assume it's Firefox if the above line doesn't error.
*/
//TODO: Decipher between Firefox's implementation and a correct one.
customEvent.initKeyEvent(type, bubbles, cancelable, view, ctrlKey,
altKey, shiftKey, metaKey, keyCode, charCode);
} catch (ex /*:Error*/){
/*
* If it got here, that means key events aren't officially supported.
* Safari/WebKit is a real problem now. WebKit 522 won't let you
* set keyCode, charCode, or other properties if you use a
* UIEvent, so we first must try to create a generic event. The
* fun part is that this will throw an error on Safari 2.x. The
* end result is that we need another try...catch statement just to
* deal with this mess.
*/
try {
//try to create generic event - will fail in Safari 2.x
customEvent = document.createEvent("Events");
} catch (uierror /*:Error*/){
//the above failed, so create a UIEvent for Safari 2.x
customEvent = document.createEvent("UIEvents");
} finally {
customEvent.initEvent(type, bubbles, cancelable);
//initialize
customEvent.view = view;
customEvent.altKey = altKey;
customEvent.ctrlKey = ctrlKey;
customEvent.shiftKey = shiftKey;
customEvent.metaKey = metaKey;
customEvent.keyCode = keyCode;
customEvent.charCode = charCode;
}
}
//fire the event
target.dispatchEvent(customEvent);
} else if (YAHOO.lang.isObject(document.createEventObject)){ //IE
//create an IE event object
customEvent = document.createEventObject();
//assign available properties
customEvent.bubbles = bubbles;
customEvent.cancelable = cancelable;
customEvent.view = view;
customEvent.ctrlKey = ctrlKey;
customEvent.altKey = altKey;
customEvent.shiftKey = shiftKey;
customEvent.metaKey = metaKey;
/*
* IE doesn't support charCode explicitly. CharCode should
* take precedence over any keyCode value for accurate
* representation.
*/
customEvent.keyCode = (charCode > 0) ? charCode : keyCode;
//fire the event
target.fireEvent("on" + type, customEvent);
} else {
throw new Error("simulateKeyEvent(): No event simulation framework present.");
}
},
/**
* Simulates a mouse event using the given event information to populate
* the generated event object. This method does browser-equalizing
* calculations to account for differences in the DOM and IE event models
* as well as different browser quirks.
* @method simulateMouseEvent
* @private
* @static
* @param {HTMLElement} target The target of the given event.
* @param {String} type The type of event to fire. This can be any one of
* the following: click, dblclick, mousedown, mouseup, mouseout,
* mouseover, and mousemove.
* @param {Boolean} bubbles (Optional) Indicates if the event can be
* bubbled up. DOM Level 2 specifies that all mouse events bubble by
* default. The default is true.
* @param {Boolean} cancelable (Optional) Indicates if the event can be
* canceled using preventDefault(). DOM Level 2 specifies that all
* mouse events except mousemove can be cancelled. The default
* is true for all events except mousemove, for which the default
* is false.
* @param {Window} view (Optional) The view containing the target. This is
* typically the window object. The default is window.
* @param {int} detail (Optional) The number of times the mouse button has
* been used. The default value is 1.
* @param {int} screenX (Optional) The x-coordinate on the screen at which
* point the event occured. The default is 0.
* @param {int} screenY (Optional) The y-coordinate on the screen at which
* point the event occured. The default is 0.
* @param {int} clientX (Optional) The x-coordinate on the client at which
* point the event occured. The default is 0.
* @param {int} clientY (Optional) The y-coordinate on the client at which
* point the event occured. The default is 0.
* @param {Boolean} ctrlKey (Optional) Indicates if one of the CTRL keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} altKey (Optional) Indicates if one of the ALT keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} shiftKey (Optional) Indicates if one of the SHIFT keys
* is pressed while the event is firing. The default is false.
* @param {Boolean} metaKey (Optional) Indicates if one of the META keys
* is pressed while the event is firing. The default is false.
* @param {int} button (Optional) The button being pressed while the event
* is executing. The value should be 0 for the primary mouse button
* (typically the left button), 1 for the terciary mouse button
* (typically the middle button), and 2 for the secondary mouse button
* (typically the right button). The default is 0.
* @param {HTMLElement} relatedTarget (Optional) For mouseout events,
* this is the element that the mouse has moved to. For mouseover
* events, this is the element that the mouse has moved from. This
* argument is ignored for all other events. The default is null.
*/
simulateMouseEvent : function (target /*:HTMLElement*/, type /*:String*/,
bubbles /*:Boolean*/, cancelable /*:Boolean*/,
view /*:Window*/, detail /*:int*/,
screenX /*:int*/, screenY /*:int*/,
clientX /*:int*/, clientY /*:int*/,
ctrlKey /*:Boolean*/, altKey /*:Boolean*/,
shiftKey /*:Boolean*/, metaKey /*:Boolean*/,
button /*:int*/, relatedTarget /*:HTMLElement*/) /*:Void*/
{
//check target
target = YAHOO.util.Dom.get(target);
if (!target){
throw new Error("simulateMouseEvent(): Invalid target.");
}
//check event type
if (YAHOO.lang.isString(type)){
type = type.toLowerCase();
switch(type){
case "mouseover":
case "mouseout":
case "mousedown":
case "mouseup":
case "click":
case "dblclick":
case "mousemove":
break;
default:
throw new Error("simulateMouseEvent(): Event type '" + type + "' not supported.");
}
} else {
throw new Error("simulateMouseEvent(): Event type must be a string.");
}
//setup default values
if (!YAHOO.lang.isBoolean(bubbles)){
bubbles = true; //all mouse events bubble
}
if (!YAHOO.lang.isBoolean(cancelable)){
cancelable = (type != "mousemove"); //mousemove is the only one that can't be cancelled
}
if (!YAHOO.lang.isObject(view)){
view = window; //view is typically window
}
if (!YAHOO.lang.isNumber(detail)){
detail = 1; //number of mouse clicks must be at least one
}
if (!YAHOO.lang.isNumber(screenX)){
screenX = 0;
}
if (!YAHOO.lang.isNumber(screenY)){
screenY = 0;
}
if (!YAHOO.lang.isNumber(clientX)){
clientX = 0;
}
if (!YAHOO.lang.isNumber(clientY)){
clientY = 0;
}
if (!YAHOO.lang.isBoolean(ctrlKey)){
ctrlKey = false;
}
if (!YAHOO.lang.isBoolean(altKey)){
altKey = false;
}
if (!YAHOO.lang.isBoolean(shiftKey)){
shiftKey = false;
}
if (!YAHOO.lang.isBoolean(metaKey)){
metaKey = false;
}
if (!YAHOO.lang.isNumber(button)){
button = 0;
}
//try to create a mouse event
var customEvent /*:MouseEvent*/ = null;
//check for DOM-compliant browsers first
if (YAHOO.lang.isFunction(document.createEvent)){
customEvent = document.createEvent("MouseEvents");
//Safari 2.x (WebKit 418) still doesn't implement initMouseEvent()
if (customEvent.initMouseEvent){
customEvent.initMouseEvent(type, bubbles, cancelable, view, detail,
screenX, screenY, clientX, clientY,
ctrlKey, altKey, shiftKey, metaKey,
button, relatedTarget);
} else { //Safari
//the closest thing available in Safari 2.x is UIEvents
customEvent = document.createEvent("UIEvents");
customEvent.initEvent(type, bubbles, cancelable);
customEvent.view = view;
customEvent.detail = detail;
customEvent.screenX = screenX;
customEvent.screenY = screenY;
customEvent.clientX = clientX;
customEvent.clientY = clientY;
customEvent.ctrlKey = ctrlKey;
customEvent.altKey = altKey;
customEvent.metaKey = metaKey;
customEvent.shiftKey = shiftKey;
customEvent.button = button;
customEvent.relatedTarget = relatedTarget;
}
/*
* Check to see if relatedTarget has been assigned. Firefox
* versions less than 2.0 don't allow it to be assigned via
* initMouseEvent() and the property is readonly after event
* creation, so in order to keep YAHOO.util.getRelatedTarget()
* working, assign to the IE proprietary toElement property
* for mouseout event and fromElement property for mouseover
* event.
*/
if (relatedTarget && !customEvent.relatedTarget){
if (type == "mouseout"){
customEvent.toElement = relatedTarget;
} else if (type == "mouseover"){
customEvent.fromElement = relatedTarget;
}
}
//fire the event
target.dispatchEvent(customEvent);
} else if (YAHOO.lang.isObject(document.createEventObject)){ //IE
//create an IE event object
customEvent = document.createEventObject();
//assign available properties
customEvent.bubbles = bubbles;
customEvent.cancelable = cancelable;
customEvent.view = view;
customEvent.detail = detail;
customEvent.screenX = screenX;
customEvent.screenY = screenY;
customEvent.clientX = clientX;
customEvent.clientY = clientY;
customEvent.ctrlKey = ctrlKey;
customEvent.altKey = altKey;
customEvent.metaKey = metaKey;
customEvent.shiftKey = shiftKey;
//fix button property for IE's wacky implementation
switch(button){
case 0:
customEvent.button = 1;
break;
case 1:
customEvent.button = 4;
break;
case 2:
//leave as is
break;
default:
customEvent.button = 0;
}
/*
* Have to use relatedTarget because IE won't allow assignment
* to toElement or fromElement on generic events. This keeps
* YAHOO.util.customEvent.getRelatedTarget() functional.
*/
customEvent.relatedTarget = relatedTarget;
//fire the event
target.fireEvent("on" + type, customEvent);
} else {
throw new Error("simulateMouseEvent(): No event simulation framework present.");
}
},
//--------------------------------------------------------------------------
// Mouse events
//--------------------------------------------------------------------------
/**
* Simulates a mouse event on a particular element.
* @param {HTMLElement} target The element to click on.
* @param {String} type The type of event to fire. This can be any one of
* the following: click, dblclick, mousedown, mouseup, mouseout,
* mouseover, and mousemove.
* @param {Object} options Additional event options (use DOM standard names).
* @method mouseEvent
* @static
*/
fireMouseEvent : function (target /*:HTMLElement*/, type /*:String*/,
options /*:Object*/) /*:Void*/
{
options = options || {};
this.simulateMouseEvent(target, type, options.bubbles,
options.cancelable, options.view, options.detail, options.screenX,
options.screenY, options.clientX, options.clientY, options.ctrlKey,
options.altKey, options.shiftKey, options.metaKey, options.button,
options.relatedTarget);
},
/**
* Simulates a click on a particular element.
* @param {HTMLElement} target The element to click on.
* @param {Object} options Additional event options (use DOM standard names).
* @method click
* @static
*/
click : function (target /*:HTMLElement*/, options /*:Object*/) /*:Void*/ {
this.fireMouseEvent(target, "click", options);
},
/**
* Simulates a double click on a particular element.
* @param {HTMLElement} target The element to double click on.
* @param {Object} options Additional event options (use DOM standard names).
* @method dblclick
* @static
*/
dblclick : function (target /*:HTMLElement*/, options /*:Object*/) /*:Void*/ {
this.fireMouseEvent( target, "dblclick", options);
},
/**
* Simulates a mousedown on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method mousedown
* @static
*/
mousedown : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireMouseEvent(target, "mousedown", options);
},
/**
* Simulates a mousemove on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method mousemove
* @static
*/
mousemove : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireMouseEvent(target, "mousemove", options);
},
/**
* Simulates a mouseout event on a particular element. Use "relatedTarget"
* on the options object to specify where the mouse moved to.
* Quirks: Firefox less than 2.0 doesn't set relatedTarget properly, so
* toElement is assigned in its place. IE doesn't allow toElement to be
* be assigned, so relatedTarget is assigned in its place. Both of these
* concessions allow YAHOO.util.Event.getRelatedTarget() to work correctly
* in both browsers.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method mouseout
* @static
*/
mouseout : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireMouseEvent(target, "mouseout", options);
},
/**
* Simulates a mouseover event on a particular element. Use "relatedTarget"
* on the options object to specify where the mouse moved from.
* Quirks: Firefox less than 2.0 doesn't set relatedTarget properly, so
* fromElement is assigned in its place. IE doesn't allow fromElement to be
* be assigned, so relatedTarget is assigned in its place. Both of these
* concessions allow YAHOO.util.Event.getRelatedTarget() to work correctly
* in both browsers.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method mouseover
* @static
*/
mouseover : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireMouseEvent(target, "mouseover", options);
},
/**
* Simulates a mouseup on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method mouseup
* @static
*/
mouseup : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireMouseEvent(target, "mouseup", options);
},
//--------------------------------------------------------------------------
// Key events
//--------------------------------------------------------------------------
/**
* Fires an event that normally would be fired by the keyboard (keyup,
* keydown, keypress). Make sure to specify either keyCode or charCode as
* an option.
* @private
* @param {String} type The type of event ("keyup", "keydown" or "keypress").
* @param {HTMLElement} target The target of the event.
* @param {Object} options Options for the event. Either keyCode or charCode
* are required.
* @method fireKeyEvent
* @static
*/
fireKeyEvent : function (type /*:String*/, target /*:HTMLElement*/,
options /*:Object*/) /*:Void*/
{
options = options || {};
this.simulateKeyEvent(target, type, options.bubbles,
options.cancelable, options.view, options.ctrlKey,
options.altKey, options.shiftKey, options.metaKey,
options.keyCode, options.charCode);
},
/**
* Simulates a keydown event on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method keydown
* @static
*/
keydown : function (target /*:HTMLElement*/, options /*:Object*/) /*:Void*/ {
this.fireKeyEvent("keydown", target, options);
},
/**
* Simulates a keypress on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method keypress
* @static
*/
keypress : function (target /*:HTMLElement*/, options /*:Object*/) /*:Void*/ {
this.fireKeyEvent("keypress", target, options);
},
/**
* Simulates a keyup event on a particular element.
* @param {HTMLElement} target The element to act on.
* @param {Object} options Additional event options (use DOM standard names).
* @method keyup
* @static
*/
keyup : function (target /*:HTMLElement*/, options /*Object*/) /*:Void*/ {
this.fireKeyEvent("keyup", target, options);
}
};
YAHOO.register("event-simulate", YAHOO.util.UserAction, {version: "2.8.2r1", build: "7"});
