/**
* @class Ext.EventManager
*/
Ext.apply(Ext.EventManager, function(){
var resizeEvent,
resizeTask,
textEvent,
textSize,
D = Ext.lib.Dom,
propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/,
unload = Ext.EventManager._unload,
curWidth = 0,
curHeight = 0,
// note 1: IE fires ONLY the keydown event on specialkey autorepeat
// note 2: Safari < 3.1, Gecko (Mac/Linux) & Opera fire only the keypress event on specialkey autorepeat
// (research done by @Jan Wolter at http://unixpapa.com/js/key.html)
useKeydown = Ext.isWebKit ?
Ext.num(navigator.userAgent.match(/AppleWebKit\/(\d+)/)[1]) >= 525 :
!((Ext.isGecko && !Ext.isWindows) || Ext.isOpera);
return {
_unload: function(){
Ext.EventManager.un(window, "resize", this.fireWindowResize, this);
unload.call(Ext.EventManager);
},
// private
doResizeEvent: function(){
var h = D.getViewHeight(),
w = D.getViewWidth();
//whacky problem in IE where the resize event will fire even though the w/h are the same.
if(curHeight != h || curWidth != w){
resizeEvent.fire(curWidth = w, curHeight = h);
}
},
/**
* Adds a listener to be notified when the browser window is resized and provides resize event buffering (100 milliseconds),
* passes new viewport width and height to handlers.
* @param {Function} fn The handler function the window resize event invokes.
* @param {Object} scope The scope (<code>this</code> reference) in which the handler function executes. Defaults to the browser window.
* @param {boolean} options Options object as passed to {@link Ext.Element#addListener}
*/
onWindowResize : function(fn, scope, options){
if(!resizeEvent){
resizeEvent = new Ext.util.Event();
resizeTask = new Ext.util.DelayedTask(this.doResizeEvent);
Ext.EventManager.on(window, "resize", this.fireWindowResize, this);
}
resizeEvent.addListener(fn, scope, options);
},
// exposed only to allow manual firing
fireWindowResize : function(){
if(resizeEvent){
resizeTask.delay(100);
}
},
/**
* Adds a listener to be notified when the user changes the active text size. Handler gets called with 2 params, the old size and the new size.
* @param {Function} fn The function the event invokes.
* @param {Object} scope The scope (<code>this</code> reference) in which the handler function executes. Defaults to the browser window.
* @param {boolean} options Options object as passed to {@link Ext.Element#addListener}
*/
onTextResize : function(fn, scope, options){
if(!textEvent){
textEvent = new Ext.util.Event();
var textEl = new Ext.Element(document.createElement('div'));
textEl.dom.className = 'x-text-resize';
textEl.dom.innerHTML = 'X';
textEl.appendTo(document.body);
textSize = textEl.dom.offsetHeight;
setInterval(function(){
if(textEl.dom.offsetHeight != textSize){
textEvent.fire(textSize, textSize = textEl.dom.offsetHeight);
}
}, this.textResizeInterval);
}
textEvent.addListener(fn, scope, options);
},
/**
* Removes the passed window resize listener.
* @param {Function} fn The method the event invokes
* @param {Object} scope The scope of handler
*/
removeResizeListener : function(fn, scope){
if(resizeEvent){
resizeEvent.removeListener(fn, scope);
}
},
// private
fireResize : function(){
if(resizeEvent){
resizeEvent.fire(D.getViewWidth(), D.getViewHeight());
}
},
/**
* The frequency, in milliseconds, to check for text resize events (defaults to 50)
*/
textResizeInterval : 50,
/**
* Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL)
*/
ieDeferSrc : false,
// protected, short accessor for useKeydown
getKeyEvent : function(){
return useKeydown ? 'keydown' : 'keypress';
},
// protected for use inside the framework
// detects whether we should use keydown or keypress based on the browser.
useKeydown: useKeydown
};
}());
Ext.EventManager.on = Ext.EventManager.addListener;
Ext.apply(Ext.EventObjectImpl.prototype, {
/** 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,
CONTROL : 17, // legacy
/** 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,
PAGEUP : 33, // legacy
/** Key constant @type Number */
PAGE_DOWN: 34,
PAGEDOWN : 34, // legacy
/** 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,
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,
/** @private */
isNavKeyPress : function(){
var me = this,
k = this.normalizeKey(me.keyCode);
return (k >= 33 && k <= 40) || // Page Up/Down, End, Home, Left, Up, Right, Down
k == me.RETURN ||
k == me.TAB ||
k == me.ESC;
},
isSpecialKey : function(){
var k = this.normalizeKey(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
},
getPoint : function(){
return new Ext.lib.Point(this.xy[0], this.xy[1]);
},
/**
* Returns true if the control, meta, shift or alt key was pressed during this event.
* @return {Boolean}
*/
hasModifier : function(){
return ((this.ctrlKey || this.altKey) || this.shiftKey);
}
});