scratchfoundation/paper.js
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Events: paper namespace may not be initialized when key evens are emitted.

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This commit is contained in:
Jürg Lehni 2016-02-01 12:58:52 +01:00
parent 1c4ff31e6c
commit b2f3b587ec
1 changed files with 3 additions and 3 deletions
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6
src/event/Key.js
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@ -67,7 +67,7 @@ var Key = new function() {
// based on whichever key is used for commands. // based on whichever key is used for commands.
command: { command: {
get: function() { get: function() {
var agent = paper.agent; var agent = paper && paper.agent;
return agent && agent.mac ? this.meta : this.control; return agent && agent.mac ? this.meta : this.control;
} }
} }
@ -106,7 +106,7 @@ var Key = new function() {
// Detect modifiers and mark them as pressed / released // Detect modifiers and mark them as pressed / released
if (key.length > 1 && (name = Base.camelize(key)) in modifiers) { if (key.length > 1 && (name = Base.camelize(key)) in modifiers) {
modifiers[name] = down; modifiers[name] = down;
var agent = paper.agent; var agent = paper && paper.agent;
if (name === 'meta' && agent && agent.mac) { if (name === 'meta' && agent && agent.mac) {
// Fix a strange behavior on Mac where no keyup events are // Fix a strange behavior on Mac where no keyup events are
// received for any keys pressed while the meta key is down. // received for any keys pressed while the meta key is down.
@ -136,7 +136,7 @@ var Key = new function() {
DomEvent.add(document, { DomEvent.add(document, {
keydown: function(event) { keydown: function(event) {
var key = getKey(event), var key = getKey(event),
agent = paper.agent; agent = paper && paper.agent;
// Directly handle any special keys (key.length > 1) in keydown, as // Directly handle any special keys (key.length > 1) in keydown, as
// not all of them will receive keypress events. // not all of them will receive keypress events.
// Chrome doesn't fire keypress events for command and alt keys, // Chrome doesn't fire keypress events for command and alt keys,