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Bug 956138 - [Australis] Have BrowserUITelemetry wait for sessionstore-windows-restored before gathering measurements. r=jaws.

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This commit is contained in:
Mike Conley 2014-01-02 19:02:46 -05:00
parent 1e0f81d3af
commit 503b756b3f
1 changed files with 25 additions and 12 deletions
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37
browser/modules/BrowserUITelemetry.jsm
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@ -130,12 +130,18 @@ this.BrowserUITelemetry = {
init: function() {
UITelemetry.addSimpleMeasureFunction("toolbars",
this.getToolbarMeasures.bind(this));
Services.obs.addObserver(this, "sessionstore-windows-restored", false);
Services.obs.addObserver(this, "browser-delayed-startup-finished", false);
},
observe: function(aSubject, aTopic, aData) {
if (aTopic == "browser-delayed-startup-finished") {
this._registerWindow(aSubject);
switch(aTopic) {
case "sessionstore-windows-restored":
this._gatherFirstWindowMeasurements();
break;
case "browser-delayed-startup-finished":
this._registerWindow(aSubject);
break;
}
},
@ -200,16 +206,23 @@ this.BrowserUITelemetry = {
},
_firstWindowMeasurements: null,
_registerWindow: function(aWindow) {
// We'll gather measurements on the first non-popup window that opens
// after it has painted. We do this here instead of waiting for
// UITelemetry to ask for our measurements because at that point
// all browser windows have probably been closed, since the vast
// majority of saved-session pings are gathered during shutdown.
if (!this._firstWindowMeasurements && aWindow.toolbar.visible) {
this._firstWindowMeasurements = this._getWindowMeasurements(aWindow);
}
_gatherFirstWindowMeasurements: function() {
// We'll gather measurements as soon as the session has restored.
// We do this here instead of waiting for UITelemetry to ask for
// our measurements because at that point all browser windows have
// probably been closed, since the vast majority of saved-session
// pings are gathered during shutdown.
let win = RecentWindow.getMostRecentBrowserWindow({
private: false,
allowPopups: false,
});
// If there are no such windows, we're out of luck. :(
this._firstWindowMeasurements = win ? this._getWindowMeasurements(win)
: {};
},
_registerWindow: function(aWindow) {
aWindow.addEventListener("unload", this);
let document = aWindow.document;
@ -419,4 +432,4 @@ function getIDBasedOnFirstIDedAncestor(aNode) {
}
return aNode.id;
}
}