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Fix race condition when starting in Connector mode

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When starting in Connector mode (i.e. Standalone is open), Zotero first starts in Full mode, looks for Standalone, then "shuts down" and restarts in Connector mode. `Zotero.shutdown()` returns a promise which is then followed up by a `Zotero.init` call. Thus, when starting in Connector mode, Zotero initialization is asynchronous and makes it possible for `Zotero_Browser.init()` to be called before `Zotero.initialized` is true, which prevents `Zotero_Browser` from initializing. Additionally, even if `Zotero_Browser.init()` is called after Zotero is initialized in Connector mode, it is possible that `Zotero_Browser.init()` will be called _after_ the "load" event for browser.xul has already fired, so `chromeLoad` is never called. This patch ensures that both of these race conditions are taken into account.
This commit is contained in:
Aurimas Vinckevicius 2014-06-03 01:44:26 -05:00
parent 59fe54da01
commit e4dd38fc84
1 changed files with 35 additions and 5 deletions
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40
chrome/content/zotero/browser.js
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@ -102,15 +102,45 @@ var Zotero_Browser = new function() {
* Initialize some variables and prepare event listeners for when chrome is done loading
*/
function init() {
if (!Zotero || !Zotero.initialized || !window.hasOwnProperty("gBrowser")) {
if (!window.hasOwnProperty("gBrowser")) {
return;
}
window.addEventListener("load",
function(e) { Zotero_Browser.chromeLoad(e) }, false);
var zoteroInitDone;
if (!Zotero || !Zotero.initialized) {
// Zotero either failed to load or is reloading in Connector mode
// In case of the latter, listen for the 'zotero-loaded' event (once) and retry
var zoteroInitDone_deferred = Q.defer();
var obs = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
var observer = {
"observe":function() {
obs.removeObserver(observer, 'zotero-loaded')
zoteroInitDone_deferred.resolve();
}
};
obs.addObserver(observer, 'zotero-loaded', false);
zoteroInitDone = zoteroInitDone_deferred.promise;
} else {
zoteroInitDone = Q();
}
ZoteroPane_Local.addReloadListener(reload);
reload();
var chromeLoaded = Q.defer();
window.addEventListener("load", function(e) { chromeLoaded.resolve() }, false);
// Wait for Zotero to init and chrome to load before proceeding
Q.all([
zoteroInitDone.then(function() {
ZoteroPane_Local.addReloadListener(reload);
reload();
}),
chromeLoaded.promise
])
.then(function() {
Zotero_Browser.chromeLoad()
})
.done();
}
/**