scratchfoundation/paper.js
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Fix more key handling bugs and make Key.isDown() work again.

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This commit is contained in:
Jürg Lehni 2011-05-08 15:28:35 +01:00
parent 450fadfcbf
commit 6593c07127
1 changed files with 5 additions and 3 deletions
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8
src/ui/Key.js
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@ -54,12 +54,14 @@ var Key = this.Key = new function() {
// actual onKeyDown event and maps the keydown keyCode to the keypress
// charCode so keyup can do the right thing too.
charCodeMap = {}, // keyCode -> charCode mappings for pressed keys
keyMap = {}, // Map for currently pressed keys
downCode; // The last keyCode from keydown
function handleKey(down, keyCode, charCode, event) {
var character = String.fromCharCode(charCode),
key = keys[keyCode] || character.toLowerCase(),
handler = down ? 'onKeyDown' : 'onKeyUp';
keyMap[key] = down;
if (paper.tool && paper.tool[handler]) {
// Call the onKeyDown or onKeyUp handler if present
// When the handler function returns false, prevent the
@ -97,7 +99,7 @@ var Key = this.Key = new function() {
},
keypress: function(event) {
if (downCode !== undefined) {
if (downCode != null) {
var code = event.which || event.keyCode;
// Link the downCode from keydown with the code form keypress, so
// keyup can retrieve that code again.
@ -112,7 +114,7 @@ var Key = this.Key = new function() {
key = keys[code], name;
if (key && modifiers[name = Base.camelize(key)] !== undefined) {
modifiers[name] = false
} else if (charCodeMap[code] !== undefined) {
} else if (charCodeMap[code] != null) {
handleKey(false, code, charCodeMap[code], event);
delete charCodeMap[code];
}
@ -123,7 +125,7 @@ var Key = this.Key = new function() {
modifiers: modifiers,
isDown: function(key) {
return !!activeKeys[key];
return !!keyMap[key];
}
};
};