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Add support for iframe key capture. #109

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Add support for iframe key capture. #109

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b9e24e5
add: A getter & setter to support iframe.
ysmood Dec 9, 2013
2baff2b
Optimize the scope operation.
ysmood Dec 9, 2013
24e9830
del: ys prefix.
ysmood Dec 11, 2013
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53 changes: 31 additions & 22 deletions keymaster.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@
// (c) 2011-2013 Thomas Fuchs
// keymaster.js may be freely distributed under the MIT license.

;(function(global){
keymaster = function(win) {
var k,
key,
_window = win || window,
_document,
_handlers = {},
_mods = { 16: false, 18: false, 17: false, 91: false },
_scope = 'all',
Expand Down Expand Up @@ -75,7 +78,7 @@
if(key == 93 || key == 224) key = 91; // right command on webkit, command on Gecko
if(key in _mods) {
_mods[key] = true;
// 'assignKey' from inside this closure is exported to window.key
// 'assignKey' from inside this closure is exported to _window.key
for(k in _MODIFIERS) if(_MODIFIERS[k] == key) assignKey[k] = true;
return;
}
Expand Down Expand Up @@ -260,37 +263,43 @@
if (object.addEventListener)
object.addEventListener(event, method, false);
else if(object.attachEvent)
object.attachEvent('on'+event, function(){ method(window.event) });
object.attachEvent('on'+event, function(){ method(_window.event) });
};

// set the handlers globally on document
addEvent(document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
addEvent(document, 'keyup', clearModifier);
// set the handlers _windowly on document
// Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
_document = _window.document;
addEvent(_document, 'keydown', function(event) { dispatch(event) });
addEvent(_document, 'keyup', clearModifier);

// reset modifiers to false whenever the window is (re)focused.
addEvent(window, 'focus', resetModifiers);
// reset modifiers to false whenever the _window is (re)focused.
addEvent(_window, 'focus', resetModifiers);

// store previously defined key
var previousKey = global.key;
var previousKey = _window.key;

// restore previously defined key and return reference to our key object
function noConflict() {
var k = global.key;
global.key = previousKey;
var k = _window.key;
_window.key = previousKey;
return k;
}

// set window.key and window.key.set/get/deleteScope, and the default filter
global.key = assignKey;
global.key.setScope = setScope;
global.key.getScope = getScope;
global.key.deleteScope = deleteScope;
global.key.filter = filter;
global.key.isPressed = isPressed;
global.key.getPressedKeyCodes = getPressedKeyCodes;
global.key.noConflict = noConflict;
global.key.unbind = unbindKey;
// set _window.key and _window.key.set/get/deleteScope, and the default filter
key = assignKey;
key.setScope = setScope;
key.getScope = getScope;
key.deleteScope = deleteScope;
key.filter = filter;
key.isPressed = isPressed;
key.getPressedKeyCodes = getPressedKeyCodes;
key.noConflict = noConflict;
key.unbind = unbindKey;

// export key to the global scope
_window.key = key

if(typeof module !== 'undefined') module.exports = key;
}

})(this);
keymaster(this);