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Code Issues Releases Wiki Activity

#749: code review

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This commit is contained in:
gorhill 2015-11-03 18:00:08 -05:00
parent 6bec4d795c
commit 45335855af
1 changed files with 20 additions and 7 deletions
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27
platform/firefox/bootstrap.js vendored
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@ -62,7 +62,7 @@ function startup(data/*, reason*/) {
.getService(Ci.nsIAppShellService);
let isReady = function() {
var hiddenDoc = null;
var hiddenDoc;
try {
hiddenDoc = appShell.hiddenDOMWindow &&
@ -70,7 +70,10 @@ function startup(data/*, reason*/) {
} catch (ex) {
}
if ( hiddenDoc === null || hiddenDoc.readyState === 'loading' ) {
// Do not test against `loading`: it does appear `readyState` could be
// undefined if looked up too early.
if ( !hiddenDoc ||
hiddenDoc.readyState !== 'interactive' && hiddenDoc.readyState !== 'complete' ) {
return false;
}
@ -82,6 +85,9 @@ function startup(data/*, reason*/) {
'chrome://' + hostName + '/content/background.html#' + version
);
// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIMessageListenerManager#addMessageListener%28%29
// "If the same listener registers twice for the same message, the
// "second registration is ignored."
restartListener.messageManager.addMessageListener(
hostName + '-restart',
restartListener
@ -96,17 +102,24 @@ function startup(data/*, reason*/) {
// https://github.com/gorhill/uBlock/issues/749
// Poll until the proper environment is set up -- or give up eventually.
// We poll frequently early on but relax poll delay as time pass.
let tryCount = 300;
let tryDelay = 5;
let trySum = 0;
let tryMax = 30000;
let timer = Cc['@mozilla.org/timer;1']
.createInstance(Ci.nsITimer);
let checkLater = function() {
tryCount -= 1;
if ( tryCount > 0 ) {
timer.init(timerObserver, 100, timer.TYPE_ONE_SHOT);
} else {
trySum += tryDelay;
if ( trySum >= tryMax ) {
timer = null;
return;
}
timer.init(timerObserver, tryDelay, timer.TYPE_ONE_SHOT);
tryDelay *= 2;
if ( tryDelay > 500 ) {
tryDelay = 500;
}
};