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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
/* eslint-env mozilla/frame-script */
const gfxFrameScript = {
domUtils: null,
init() {
let webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
let webProgress = docShell
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebProgress);
webProgress.addProgressListener(
this,
Ci.nsIWebProgress.NOTIFY_STATE_WINDOW
);
this.domUtils = content.windowUtils;
let loadURIOptions = {
triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal(),
};
webNav.loadURI(
Services.io.newURI("chrome://gfxsanity/content/sanitytest.html"),
loadURIOptions
);
},
handleEvent(aEvent) {
switch (aEvent.type) {
case "MozAfterPaint":
sendAsyncMessage("gfxSanity:ContentLoaded");
removeEventListener("MozAfterPaint", this);
break;
}
},
isSanityTest(aUri) {
if (!aUri) {
return false;
}
return aUri.endsWith("/sanitytest.html");
},
onStateChange(webProgress, req, flags) {
if (
webProgress.isTopLevel &&
flags & Ci.nsIWebProgressListener.STATE_STOP &&
this.isSanityTest(req.name)
) {
webProgress.removeProgressListener(this);
// If no paint is pending, then the test already painted
if (this.domUtils.isMozAfterPaintPending) {
addEventListener("MozAfterPaint", this);
} else {
sendAsyncMessage("gfxSanity:ContentLoaded");
}
}
},
// Needed to support web progress listener
QueryInterface: ChromeUtils.generateQI([
"nsIWebProgressListener",
"nsISupportsWeakReference",
"nsIObserver",
]),
};
gfxFrameScript.init();
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