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Fix event.which (#1217)

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This commit is contained in:
Brandon Aaron 2007-05-30 19:22:24 +00:00
parent 7e03645a55
commit ee31297a83
1 changed files with 37 additions and 46 deletions
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81
src/event/event.js
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@ -179,23 +179,40 @@ jQuery.event = {
},
fix: function(event) {
// store a copy of the original event object
// and clone to set read-only properties
var originalEvent = event;
event = jQuery.extend({}, originalEvent);
// add preventDefault and stopPropagation since
// they will not work on the clone
event.preventDefault = function() {
// if preventDefault exists run it on the original event
if (originalEvent.preventDefault)
return originalEvent.preventDefault();
// otherwise set the returnValue property of the original event to false (IE)
originalEvent.returnValue = false;
};
event.stopPropagation = function() {
// if stopPropagation exists run it on the original event
if (originalEvent.stopPropagation)
return originalEvent.stopPropagation();
// otherwise set the cancelBubble property of the original event to true (IE)
originalEvent.cancelBubble = true;
};
// Fix target property, if necessary
if ( !event.target && event.srcElement )
event.target = event.srcElement;
// check if target is a textnode (safari)
if (jQuery.browser.safari && event.target.nodeType == 3)
event.target = originalEvent.target.parentNode;
// Add relatedTarget, if necessary
if ( !event.relatedTarget && event.fromElement )
event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement;
// Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
if ( event.metaKey == null && event.ctrlKey != null )
event.metaKey = event.ctrlKey;
// Add which for click: 1 == left; 2 == middle; 3 == right
// Note: button is not normalized, so don't use it
if ( event.which == null && event.button != null )
event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
// Calculate pageX/Y if missing and clientX/Y available
if ( event.pageX == null && event.clientX != null ) {
var e = document.documentElement || document.body;
@ -203,44 +220,18 @@ jQuery.event = {
event.pageY = event.clientY + e.scrollTop;
}
// Add which for keypresses: keyCode
if ( (event.which == null || event.type == "keypress") && event.keyCode != null )
event.which = event.keyCode;
// Add which for key events
if ( !event.which && (event.charCode || event.keyCode) )
event.which = event.charCode || event.keyCode;
// If it's a keypress event, add charCode to IE
if ( event.charCode == null && event.type == "keypress" )
event.charCode = event.keyCode;
// Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
if ( !event.metaKey && event.ctrlKey )
event.metaKey = event.ctrlKey;
// check if target is a textnode (safari)
if (jQuery.browser.safari && event.target.nodeType == 3) {
// store a copy of the original event object
// and clone because target is read only
var originalEvent = event;
event = jQuery.extend({}, originalEvent);
// get parentnode from textnode
event.target = originalEvent.target.parentNode;
// add preventDefault and stopPropagation since
// they will not work on the clone
event.preventDefault = function() {
return originalEvent.preventDefault();
};
event.stopPropagation = function() {
return originalEvent.stopPropagation();
};
}
// fix preventDefault and stopPropagation
if (!event.preventDefault)
event.preventDefault = function() {
this.returnValue = false;
};
if (!event.stopPropagation)
event.stopPropagation = function() {
this.cancelBubble = true;
};
// Add which for click: 1 == left; 2 == middle; 3 == right
// Note: button is not normalized, so don't use it
if ( !event.which && event.button )
event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
return event;
}