diff options
| -rw-r--r-- | src/library_browser.js | 67 |
1 files changed, 34 insertions, 33 deletions
diff --git a/src/library_browser.js b/src/library_browser.js index 4be7315e..4cd8b392 100644 --- a/src/library_browser.js +++ b/src/library_browser.js @@ -196,41 +196,42 @@ mergeInto(LibraryManager.library, { // Canvas event setup var canvas = Module['canvas']; - - // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module - // Module['forcedAspectRatio'] = 4 / 3; - - canvas.requestPointerLock = canvas['requestPointerLock'] || - canvas['mozRequestPointerLock'] || - canvas['webkitRequestPointerLock'] || - canvas['msRequestPointerLock'] || - function(){}; - canvas.exitPointerLock = document['exitPointerLock'] || - document['mozExitPointerLock'] || - document['webkitExitPointerLock'] || - document['msExitPointerLock'] || - function(){}; // no-op if function does not exist - canvas.exitPointerLock = canvas.exitPointerLock.bind(document); - - function pointerLockChange() { - Browser.pointerLock = document['pointerLockElement'] === canvas || - document['mozPointerLockElement'] === canvas || - document['webkitPointerLockElement'] === canvas || - document['msPointerLockElement'] === canvas; - } + if (canvas) { + // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module + // Module['forcedAspectRatio'] = 4 / 3; + + canvas.requestPointerLock = canvas['requestPointerLock'] || + canvas['mozRequestPointerLock'] || + canvas['webkitRequestPointerLock'] || + canvas['msRequestPointerLock'] || + function(){}; + canvas.exitPointerLock = document['exitPointerLock'] || + document['mozExitPointerLock'] || + document['webkitExitPointerLock'] || + document['msExitPointerLock'] || + function(){}; // no-op if function does not exist + canvas.exitPointerLock = canvas.exitPointerLock.bind(document); + + function pointerLockChange() { + Browser.pointerLock = document['pointerLockElement'] === canvas || + document['mozPointerLockElement'] === canvas || + document['webkitPointerLockElement'] === canvas || + document['msPointerLockElement'] === canvas; + } - document.addEventListener('pointerlockchange', pointerLockChange, false); - document.addEventListener('mozpointerlockchange', pointerLockChange, false); - document.addEventListener('webkitpointerlockchange', pointerLockChange, false); - document.addEventListener('mspointerlockchange', pointerLockChange, false); + document.addEventListener('pointerlockchange', pointerLockChange, false); + document.addEventListener('mozpointerlockchange', pointerLockChange, false); + document.addEventListener('webkitpointerlockchange', pointerLockChange, false); + document.addEventListener('mspointerlockchange', pointerLockChange, false); - if (Module['elementPointerLock']) { - canvas.addEventListener("click", function(ev) { - if (!Browser.pointerLock && canvas.requestPointerLock) { - canvas.requestPointerLock(); - ev.preventDefault(); - } - }, false); + if (Module['elementPointerLock']) { + canvas.addEventListener("click", function(ev) { + if (!Browser.pointerLock && canvas.requestPointerLock) { + canvas.requestPointerLock(); + ev.preventDefault(); + } + }, false); + } } }, |