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Rambox-CE/ext/packages/sencha-core/src/event/Event.js

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Initial app Initial code using Ext JS 5 to create the UI and the main functionality.
9 years ago
/**
* Just as {@link Ext.dom.Element} wraps around a native DOM node, {@link Ext.event.Event} wraps the browser's native
* event-object normalizing cross-browser differences such as mechanisms to stop event-propagation along with a method
* to prevent default actions from taking place.
*
* Here is a simple example of how you use it:
*
* @example preview
* var container = Ext.create('Ext.Container', {
* layout: 'fit',
* renderTo: Ext.getBody(),
* items: [{
* id: 'logger',
* styleHtmlContent: true,
* html: 'Click somewhere!',
* padding: 5
* }]
* });
*
* container.getEl().on({
* click: function(e, node) {
* var string = '';
*
* string += 'You clicked at: <strong>{ x: ' + e.pageX + ', y: ' + e.pageY + ' }</strong> <i>(e.pageX & e.pageY)</i>';
* string += '<hr />';
* string += 'The HTMLElement you clicked has the className of: <strong>' + e.target.className + '</strong> <i>(e.target)</i>';
* string += '<hr />';
* string += 'The HTMLElement which has the listener has a className of: <strong>' + e.currentTarget.className + '</strong> <i>(e.currentTarget)</i>';
*
* Ext.getCmp('logger').setHtml(string);
* }
* });
*
* ## Recognizers
*
* Ext JS includes many default event recognizers to know when a user interacts with the application.
*
* For a full list of default recognizers, and more information, please view the {@link Ext.event.gesture.Recognizer} documentation.
*
* This class also provides a set of constants for use with key events. These are useful
* for determining if a specific key was pressed, and are available both on instances,
* and as static properties of the class. The following two statements are equivalent:
*
* if (e.getKey() === Ext.event.Event.TAB) {
* // tab key was pressed
* }
*
* if (e.getKey() === e.TAB) {
* // tab key was pressed
* }
*/
Ext.define('Ext.event.Event', {
alternateClassName: 'Ext.EventObjectImpl',
requires: [
'Ext.util.Point'
],
/**
* @property {Number} distance
* The distance of the event.
*
* **This is only available when the event type is `swipe` and `pinch`.**
*/
/**
* @property {HTMLElement} target
* The element that fired this event. For the element whose handlers are currently
* being processed, i.e. the element that the event handler was attached to, use
* `currentTarget`
*/
/**
* @property {HTMLElement} currentTarget
* Refers to the element the event handler was attached to, vs the `target`, which is
* the actual element that fired the event. For example, if the event bubbles, the
* `target` element may be a descendant of the `currentTarget`, as the event may
* have been triggered on the `target` and then bubbled up to the `currentTarget`
* where it was handled.
*/
/**
* @property {HTMLElement} delegatedTarget
* Same as `currentTarget`
* @deprecated 5.0.0 use {@link #currentTarget} instead.
*/
/**
* @property {Number} button
* Indicates which mouse button caused the event for mouse events, for example
* `mousedown`, `click`, `mouseup`:
* - `0` for left button.
* - `1` for middle button.
* - `2` for right button.
*
* *Note*: In IE8 & IE9, the `click` event does not provide the button.
*/
/**
* @property {Number} pageX The browsers x coordinate of the event.
* Note: this only works in browsers that support pageX on the native browser event
* object (pageX is not natively supported in IE9 and earlier). In Ext JS, for a
* cross browser normalized x-coordinate use {@link #getX}
*/
/**
* @property {Number} pageY The browsers y coordinate of the event.
* Note: this only works in browsers that support pageY on the native browser event
* object (pageY is not natively supported in IE9 and earlier). In Ext JS, for a
* cross browser normalized y-coordinate use {@link #getY}
*/
/**
* @property {Boolean} ctrlKey
* True if the control key was down during the event.
* In Mac this will also be true when meta key was down.
*/
/**
* @property {Boolean} altKey
* True if the alt key was down during the event.
*/
/**
* @property {Boolean} shiftKey
* True if the shift key was down during the event.
*/
/**
* @property {Event} browserEvent
* The raw browser event which this object wraps.
*/
isStopped: false,
/**
* @property {Boolean}
* Indicates whether or not {@link #preventDefault preventDefault()} was called on the event.
*/
defaultPrevented: false,
isEvent: true,
statics: {
resolveTextNode: function(node) {
return (node && node.nodeType === 3) ? node.parentNode : node;
},
// private
pointerEvents: {
pointerdown: 1,
pointermove: 1,
pointerup: 1,
pointercancel: 1,
pointerover: 1,
pointerout: 1,
pointerenter: 1,
pointerleave: 1,
MSPointerDown: 1,
MSPointerMove: 1,
MSPointerUp: 1,
MSPointerOver: 1,
MSPointerOut: 1,
MSPointerCancel: 1,
MSPointerEnter: 1,
MSPointerLeave: 1
},
// private
mouseEvents: {
mousedown: 1,
mousemove: 1,
mouseup: 1,
mouseover: 1,
mouseout: 1,
mouseenter: 1,
mouseleave: 1
},
// private.
// These are tracked separately from mouseEvents because the mouseEvents map
// is used by Dom publisher to eliminate duplicate events on devices that fire
// multiple kinds of events (mouse, touch, pointer). Adding click events to the
// mouse events map can cause click events to be blocked from firing in some cases.
clickEvents: {
click: 1,
dblclick: 1
},
// private
touchEvents: {
touchstart: 1,
touchmove: 1,
touchend: 1,
touchcancel: 1
},
// private
focusEvents: {
focus: 1,
blur: 1,
focusin: 1,
focusout: 1,
focusenter: 1,
focusleave: 1
},
// msPointerTypes in IE10 are numbers, in the w3c spec they are strings.
// this map allows us to normalize the pointerType for an event
// http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType
// http://msdn.microsoft.com/en-us/library/ie/hh772359(v=vs.85).aspx
pointerTypes: {
2: 'touch',
3: 'pen',
4: 'mouse',
touch: 'touch',
pen: 'pen',
mouse: 'mouse'
}
},
constructor: function(event) {
var me = this,
self = me.self,
resolveTextNode = me.self.resolveTextNode,
changedTouches = event.changedTouches,
// The target object from which to obtain the coordinates (pageX, pageY). For
// mouse and pointer events this is simply the event object itself, but touch
// events have their coordinates on the "Touch" object(s) instead.
coordinateOwner = changedTouches ? changedTouches[0] : event,
type = event.type,
pointerType, relatedTarget;
me.pageX = coordinateOwner.pageX;
me.pageY = coordinateOwner.pageY;
me.target = me.delegatedTarget = resolveTextNode(event.target);
relatedTarget = event.relatedTarget;
if (relatedTarget) {
me.relatedTarget = resolveTextNode(relatedTarget);
}
me.browserEvent = me.event = event;
me.type = type;
// set button to 0 if undefined so that touchstart, touchend, and tap will quack
// like left mouse button mousedown mouseup, and click
me.button = event.button || 0;
me.shiftKey = event.shiftKey;
// mac metaKey behaves like ctrlKey
me.ctrlKey = event.ctrlKey || event.metaKey || false;
me.altKey = event.altKey;
me.charCode = event.charCode;
me.keyCode = event.keyCode;
me.buttons = event.buttons;
// When invoking synthetic events, current APIs do not
// have the ability to specify the buttons config, which
// defaults to button. For buttons, 0 means no button
// is pressed, whereas for button, 0 means left click.
// Normalize that here
if (me.button === 0 && me.buttons === 0) {
me.buttons = 1;
}
if (self.forwardTab !== undefined && self.focusEvents[type]) {
me.forwardTab = self.forwardTab;
}
if (self.mouseEvents[type] || self.clickEvents[type]) {
pointerType = 'mouse';
} else if (self.pointerEvents[type]) {
pointerType = self.pointerTypes[event.pointerType];
} else if (self.touchEvents[type]) {
pointerType = 'touch';
}
if (pointerType) {
me.pointerType = pointerType;
}
me.timeStamp = me.time = +(event.timeStamp || new Date());
},
/**
* Creates a new Event object that is prototype-chained to this event. Useful for
* creating identical events so that certain properties can be changed without
* affecting the original event. For example, translated events have their "type"
* corrected in this manner.
* @param {Object} props properties to set on the chained event
* @private
*/
chain: function(props) {
var e = Ext.Object.chain(this);
e.parentEvent = this; // needed for stopPropagation
return Ext.apply(e, props);
},
/**
* Correctly scales a given wheel delta.
* @param {Number} delta The delta value.
* @private
*/
correctWheelDelta: function (delta) {
var scale = this.WHEEL_SCALE,
ret = Math.round(delta / scale);
if (!ret && delta) {
ret = (delta < 0) ? -1 : 1; // don't allow non-zero deltas to go to zero!
}
return ret;
},
/**
* Gets the character code for the event.
* @return {Number}
*/
getCharCode: function(){
return this.charCode || this.keyCode;
},
/**
* Returns a normalized keyCode for the event.
* @return {Number} The key code
*/
getKey: function(){
return this.keyCode || this.charCode;
},
/**
* Returns a point object that consists of the object coordinates.
* @return {Ext.util.Point} point
*/
getPoint: function(){
var xy = this.getXY();
return new Ext.util.Point(xy[0], xy[1]);
},
/**
* Gets the related target.
* @param {String} [selector] A simple selector to filter the target or look for an
* ancestor of the target. See {@link Ext.dom.Query} for information about simple
* selectors.
* @param {Number/HTMLElement} [maxDepth] The max depth to search as a number or
* element (defaults to 10 || document.body).
* @param {Boolean} [returnEl] `true` to return a Ext.Element object instead of DOM
* node.
* @return {HTMLElement}
*/
getRelatedTarget: function(selector, maxDepth, returnEl){
var relatedTarget = this.relatedTarget,
target = null;
if (relatedTarget) {
if (selector) {
target = Ext.fly(relatedTarget).findParent(selector, maxDepth, returnEl);
} else {
target = returnEl ? Ext.get(relatedTarget) : relatedTarget;
}
}
return target;
},
/**
* Gets the target for the event.
* @param {String} selector (optional) A simple selector to filter the target or look
* for an ancestor of the target
* @param {Number/Mixed} [maxDepth=10||document.body] (optional) The max depth to
* search as a number or element (defaults to 10 || document.body)
* @param {Boolean} returnEl (optional) `true` to return a Ext.Element object instead
* of DOM node.
* @return {HTMLElement}
*/
getTarget: function(selector, maxDepth, returnEl) {
return selector ? Ext.fly(this.target).findParent(selector, maxDepth, returnEl) :
(returnEl ? Ext.get(this.target) : this.target);
},
/**
* Returns the time of the event.
* @return {Date}
*/
getTime: function() {
return this.time;
},
/**
* Normalizes mouse wheel y-delta across browsers. To get x-delta information, use
* {@link #getWheelDeltas} instead.
* @return {Number} The mouse wheel y-delta
*/
getWheelDelta: function(){
var deltas = this.getWheelDeltas();
return deltas.y;
},
/**
* Returns the mouse wheel deltas for this event.
* @return {Object} An object with "x" and "y" properties holding the mouse wheel deltas.
*/
getWheelDeltas: function () {
var me = this,
event = me.browserEvent,
dx = 0, dy = 0; // the deltas
if (Ext.isDefined(event.wheelDeltaX)) { // WebKit has both dimensions
dx = event.wheelDeltaX;
dy = event.wheelDeltaY;
} else if (event.wheelDelta) { // old WebKit and IE
dy = event.wheelDelta;
} else if (event.detail) { // Gecko
dy = -event.detail; // gecko is backwards
// Gecko sometimes returns really big values if the user changes settings to
// scroll a whole page per scroll
if (dy > 100) {
dy = 3;
} else if (dy < -100) {
dy = -3;
}
// Firefox 3.1 adds an axis field to the event to indicate direction of
// scroll. See https://developer.mozilla.org/en/Gecko-Specific_DOM_Events
if (Ext.isDefined(event.axis) && event.axis === event.HORIZONTAL_AXIS) {
dx = dy;
dy = 0;
}
}
return {
x: me.correctWheelDelta(dx),
y: me.correctWheelDelta(dy)
};
},
/**
* Gets the x coordinate of the event.
* @return {Number}
*/
getX: function() {
return this.getXY()[0];
},
/**
* Gets the X and Y coordinates of the event.
* @return {Number[]} The xy values like [x, y]
*/
getXY: function() {
var me = this,
xy = me.xy;
if (!xy) {
xy = me.xy = [me.pageX, me.pageY];
//<feature legacyBrowser>
var x = xy[0],
browserEvent, doc, docEl, body;
// pageX/pageY not available (undefined, not null), use clientX/clientY instead
if (!x && x !== 0) {
browserEvent = me.browserEvent;
doc = document;
docEl = doc.documentElement;
body = doc.body;
xy[0] = browserEvent.clientX +
(docEl && docEl.scrollLeft || body && body.scrollLeft || 0) -
(docEl && docEl.clientLeft || body && body.clientLeft || 0);
xy[1] = browserEvent.clientY +
(docEl && docEl.scrollTop || body && body.scrollTop || 0) -
(docEl && docEl.clientTop || body && body.clientTop || 0);
}
//</feature>
}
return xy;
},
/**
* Gets the y coordinate of the event.
* @return {Number}
*/
getY: function() {
return this.getXY()[1];
},
/**
* Returns true if the control, meta, shift or alt key was pressed during this event.
* @return {Boolean}
*/
hasModifier: function() {
var me = this;
return !!(me.ctrlKey || me.altKey || me.shiftKey || me.metaKey);
},
/**
* Checks if the key pressed was a "navigation" key. A navigation key is defined by
* these keys:
*
* - Page Up
* - Page Down
* - End
* - Home
* - Left
* - Up
* - Right
* - Down
* - Return
* - Tab
* - Esc
*
* @param {Boolean} [scrollableOnly] Only check navigation keys that can cause
* element scrolling by their default action.
*
* @return {Boolean} `true` if the press is a navigation keypress
*/
isNavKeyPress: function(scrollableOnly) {
var me = this,
k = me.keyCode;
return (k >= 33 && k <= 40) || // Page Up/Down, End, Home, Left, Up, Right, Down
(!scrollableOnly &&
(k === me.RETURN ||
k === me.TAB ||
k === me.ESC));
},
/**
* Checks if the key pressed was a "special" key. A special key is defined as one of
* these keys:
*
* - Page Up
* - Page Down
* - End
* - Home
* - Left arrow
* - Up arrow
* - Right arrow
* - Down arrow
* - Return
* - Tab
* - Esc
* - Backspace
* - Delete
* - Shift
* - Ctrl
* - Alt
* - Pause
* - Caps Lock
* - Print Screen
* - Insert
*
* @return {Boolean} `true` if the press is a special keypress
*/
isSpecialKey: function(){
var k = this.keyCode;
return (this.type === 'keypress' && this.ctrlKey) ||
this.isNavKeyPress() ||
(k === this.BACKSPACE) || // Backspace
(k >= 16 && k <= 20) || // Shift, Ctrl, Alt, Pause, Caps Lock
(k >= 44 && k <= 46); // Print Screen, Insert, Delete
},
makeUnpreventable: function() {
this.browserEvent.preventDefault = Ext.emptyFn;
},
/**
* Prevents the browsers default handling of the event.
* @chainable
*/
preventDefault: function() {
var me = this,
parentEvent = me.parentEvent;
me.defaultPrevented = true;
// if the event was created by prototype-chaining a new object to an existing event
// instance, we need to make sure the parent event is defaultPrevented as well.
if (parentEvent) {
parentEvent.defaultPrevented = true;
}
me.browserEvent.preventDefault();
return me;
},
setCurrentTarget: function(target) {
this.currentTarget = this.delegatedTarget = target;
},
/**
* Stop the event (`{@link #preventDefault}` and `{@link #stopPropagation}`).
* @chainable
*/
stopEvent: function() {
return this.preventDefault().stopPropagation();
},
/**
* Cancels bubbling of the event.
* @chainable
*/
stopPropagation: function() {
var me = this,
browserEvent = me.browserEvent,
parentEvent = me.parentEvent;
// Set isStopped for delegated event listeners. Dom publisher will check this
// property during its emulated propagation phase (see doPublish)
me.isStopped = true;
// if the event was created by prototype-chaining a new object to an existing event
// instance, we need to make sure the parent event is stopped. This feature most
// likely comes into play when dealing with event translation. For example on touch
// browsers addListener('mousedown') actually attaches a 'touchstart' listener behind
// the scenes. When the 'touchstart' event is dispatched, the event system will
// create a "chained" copy of the event object before correcting its type back to
// 'mousedown' and calling the handler. When propagating the event we look at the
// original event, not the chained one to determine if propagation should continue,
// so the isStopped property must be set on the parentEvent or stopPropagation
// will not work.
if (parentEvent) {
parentEvent.isStopped = true;
}
//<feature legacyBrowser>
if (!browserEvent.stopPropagation) {
// IE < 10 does not have stopPropagation()
browserEvent.cancelBubble = true;
return me;
}
//</feature>
// For non-delegated event listeners (those that are directly attached to the
// DOM element) we need to call the browserEvent's stopPropagation() method.
browserEvent.stopPropagation();
return me;
},
/**
* Returns true if the target of this event is a child of `el`. Unless the allowEl
* parameter is set, it will return false if if the target is `el`.
* Example usage:
*
* // Handle click on any child of an element
* Ext.getBody().on('click', function(e){
* if(e.within('some-el')){
* alert('Clicked on a child of some-el!');
* }
* });
*
* // Handle click directly on an element, ignoring clicks on child nodes
* Ext.getBody().on('click', function(e,t){
* if((t.id == 'some-el') && !e.within(t, true)){
* alert('Clicked directly on some-el!');
* }
* });
*
* @param {String/HTMLElement/Ext.dom.Element} el The id, DOM element or Ext.Element to check
* @param {Boolean} [related] `true` to test if the related target is within el instead
* of the target
* @param {Boolean} [allowEl] `true` to also check if the passed element is the target
* or related target
* @return {Boolean}
*/
within: function(el, related, allowEl){
var t;
if (el) {
t = related ? this.getRelatedTarget() : this.getTarget();
}
return t ? Ext.fly(el).contains(t) || !!(allowEl && t === Ext.getDom(el)) : false;
},
deprecated: {
'4.0': {
methods: {
/**
* Gets the x coordinate of the event.
* @return {Number}
* @deprecated 4.0 use {@link #getX} instead
*/
getPageX: 'getX',
/**
* Gets the y coordinate of the event.
* @return {Number}
* @deprecated 4.0 use {@link #getY} instead
*/
getPageY: 'getY'
}
}
}
}, function(Event) {
var prototype = Event.prototype,
constants = {
/** Key constant @type Number */
BACKSPACE: 8,
/** Key constant @type Number */
TAB: 9,
/** Key constant @type Number */
NUM_CENTER: 12,
/** Key constant @type Number */
ENTER: 13,
/** Key constant @type Number */
RETURN: 13,
/** Key constant @type Number */
SHIFT: 16,
/** Key constant @type Number */
CTRL: 17,
/** Key constant @type Number */
ALT: 18,
/** Key constant @type Number */
PAUSE: 19,
/** Key constant @type Number */
CAPS_LOCK: 20,
/** Key constant @type Number */
ESC: 27,
/** Key constant @type Number */
SPACE: 32,
/** Key constant @type Number */
PAGE_UP: 33,
/** Key constant @type Number */
PAGE_DOWN: 34,
/** Key constant @type Number */
END: 35,
/** Key constant @type Number */
HOME: 36,
/** Key constant @type Number */
LEFT: 37,
/** Key constant @type Number */
UP: 38,
/** Key constant @type Number */
RIGHT: 39,
/** Key constant @type Number */
DOWN: 40,
/** Key constant @type Number */
PRINT_SCREEN: 44,
/** Key constant @type Number */
INSERT: 45,
/** Key constant @type Number */
DELETE: 46,
/** Key constant @type Number */
ZERO: 48,
/** Key constant @type Number */
ONE: 49,
/** Key constant @type Number */
TWO: 50,
/** Key constant @type Number */
THREE: 51,
/** Key constant @type Number */
FOUR: 52,
/** Key constant @type Number */
FIVE: 53,
/** Key constant @type Number */
SIX: 54,
/** Key constant @type Number */
SEVEN: 55,
/** Key constant @type Number */
EIGHT: 56,
/** Key constant @type Number */
NINE: 57,
/** Key constant @type Number */
A: 65,
/** Key constant @type Number */
B: 66,
/** Key constant @type Number */
C: 67,
/** Key constant @type Number */
D: 68,
/** Key constant @type Number */
E: 69,
/** Key constant @type Number */
F: 70,
/** Key constant @type Number */
G: 71,
/** Key constant @type Number */
H: 72,
/** Key constant @type Number */
I: 73,
/** Key constant @type Number */
J: 74,
/** Key constant @type Number */
K: 75,
/** Key constant @type Number */
L: 76,
/** Key constant @type Number */
M: 77,
/** Key constant @type Number */
N: 78,
/** Key constant @type Number */
O: 79,
/** Key constant @type Number */
P: 80,
/** Key constant @type Number */
Q: 81,
/** Key constant @type Number */
R: 82,
/** Key constant @type Number */
S: 83,
/** Key constant @type Number */
T: 84,
/** Key constant @type Number */
U: 85,
/** Key constant @type Number */
V: 86,
/** Key constant @type Number */
W: 87,
/** Key constant @type Number */
X: 88,
/** Key constant @type Number */
Y: 89,
/** Key constant @type Number */
Z: 90,
/** Key constant @type Number */
CONTEXT_MENU: 93,
/** Key constant @type Number */
NUM_ZERO: 96,
/** Key constant @type Number */
NUM_ONE: 97,
/** Key constant @type Number */
NUM_TWO: 98,
/** Key constant @type Number */
NUM_THREE: 99,
/** Key constant @type Number */
NUM_FOUR: 100,
/** Key constant @type Number */
NUM_FIVE: 101,
/** Key constant @type Number */
NUM_SIX: 102,
/** Key constant @type Number */
NUM_SEVEN: 103,
/** Key constant @type Number */
NUM_EIGHT: 104,
/** Key constant @type Number */
NUM_NINE: 105,
/** Key constant @type Number */
NUM_MULTIPLY: 106,
/** Key constant @type Number */
NUM_PLUS: 107,
/** Key constant @type Number */
NUM_MINUS: 109,
/** Key constant @type Number */
NUM_PERIOD: 110,
/** Key constant @type Number */
NUM_DIVISION: 111,
/** Key constant @type Number */
F1: 112,
/** Key constant @type Number */
F2: 113,
/** Key constant @type Number */
F3: 114,
/** Key constant @type Number */
F4: 115,
/** Key constant @type Number */
F5: 116,
/** Key constant @type Number */
F6: 117,
/** Key constant @type Number */
F7: 118,
/** Key constant @type Number */
F8: 119,
/** Key constant @type Number */
F9: 120,
/** Key constant @type Number */
F10: 121,
/** Key constant @type Number */
F11: 122,
/** Key constant @type Number */
F12: 123,
/**
* The mouse wheel delta scaling factor. This value depends on browser version and OS and
* attempts to produce a similar scrolling experience across all platforms and browsers.
*
* To change this value:
*
* Ext.event.Event.prototype.WHEEL_SCALE = 72;
*
* @type Number
* @property
*/
WHEEL_SCALE: (function () {
var scale;
if (Ext.isGecko) {
// Firefox uses 3 on all platforms
scale = 3;
} else if (Ext.isMac) {
// Continuous scrolling devices have momentum and produce much more scroll than
// discrete devices on the same OS and browser. To make things exciting, Safari
// (and not Chrome) changed from small values to 120 (like IE).
if (Ext.isSafari && Ext.webKitVersion >= 532.0) {
// Safari changed the scrolling factor to match IE (for details see
// https://bugs.webkit.org/show_bug.cgi?id=24368). The WebKit version where this
// change was introduced was 532.0
// Detailed discussion:
// https://bugs.webkit.org/show_bug.cgi?id=29601
// http://trac.webkit.org/browser/trunk/WebKit/chromium/src/mac/WebInputEventFactory.mm#L1063
scale = 120;
} else {
// MS optical wheel mouse produces multiples of 12 which is close enough
// to help tame the speed of the continuous mice...
scale = 12;
}
// Momentum scrolling produces very fast scrolling, so increase the scale factor
// to help produce similar results cross platform. This could be even larger and
// it would help those mice, but other mice would become almost unusable as a
// result (since we cannot tell which device type is in use).
scale *= 3;
} else {
// IE, Opera and other Windows browsers use 120.
scale = 120;
}
return scale;
}())
};
Ext.apply(Event, constants);
Ext.apply(prototype, constants);
/**
* @private
* Returns the X and Y coordinates of this event without regard to any RTL
* direction settings.
*/
prototype.getTrueXY = prototype.getXY;
});