mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
125 lines
4.6 KiB
JavaScript
125 lines
4.6 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
|
|
http://creativecommons.org/publicdomain/zero/1.0/ */
|
|
|
|
XPCOMUtils.defineLazyGetter(this, "docShell", () => {
|
|
return window.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebNavigation)
|
|
.QueryInterface(Ci.nsIDocShell);
|
|
});
|
|
|
|
const EXPECTED_REFLOWS = [
|
|
// tabbrowser.adjustTabstrip() call after tabopen animation has finished
|
|
"adjustTabstrip@chrome://browser/content/tabbrowser.xml|" +
|
|
"_handleNewTab@chrome://browser/content/tabbrowser.xml|" +
|
|
"onxbltransitionend@chrome://browser/content/tabbrowser.xml|",
|
|
|
|
// switching focus in updateCurrentBrowser() causes reflows
|
|
"updateCurrentBrowser@chrome://browser/content/tabbrowser.xml|" +
|
|
"onselect@chrome://browser/content/browser.xul|",
|
|
|
|
// switching focus in openLinkIn() causes reflows
|
|
"openLinkIn@chrome://browser/content/utilityOverlay.js|" +
|
|
"openUILinkIn@chrome://browser/content/utilityOverlay.js|" +
|
|
"BrowserOpenTab@chrome://browser/content/browser.js|",
|
|
|
|
// accessing element.scrollPosition in _fillTrailingGap() flushes layout
|
|
"get_scrollPosition@chrome://global/content/bindings/scrollbox.xml|" +
|
|
"_fillTrailingGap@chrome://browser/content/tabbrowser.xml|" +
|
|
"_handleNewTab@chrome://browser/content/tabbrowser.xml|" +
|
|
"onxbltransitionend@chrome://browser/content/tabbrowser.xml|",
|
|
|
|
// The TabView iframe causes reflows in the parent document.
|
|
"iQClass_height@chrome://browser/content/tabview.js|" +
|
|
"GroupItem_getContentBounds@chrome://browser/content/tabview.js|" +
|
|
"GroupItem_shouldStack@chrome://browser/content/tabview.js|" +
|
|
"GroupItem_arrange@chrome://browser/content/tabview.js|" +
|
|
"GroupItem_add@chrome://browser/content/tabview.js|" +
|
|
"GroupItems_newTab@chrome://browser/content/tabview.js|" +
|
|
"TabItem__reconnect@chrome://browser/content/tabview.js|" +
|
|
"TabItem@chrome://browser/content/tabview.js|" +
|
|
"TabItems_link@chrome://browser/content/tabview.js|" +
|
|
"TabItems_init/this._eventListeners.open@chrome://browser/content/tabview.js|",
|
|
|
|
// SessionStore.getWindowDimensions()
|
|
"ssi_getWindowDimension@resource:///modules/sessionstore/SessionStore.jsm|" +
|
|
"@resource:///modules/sessionstore/SessionStore.jsm|" +
|
|
"ssi_updateWindowFeatures@resource:///modules/sessionstore/SessionStore.jsm|" +
|
|
"ssi_collectWindowData@resource:///modules/sessionstore/SessionStore.jsm|",
|
|
|
|
// tabPreviews.capture()
|
|
"tabPreviews_capture@chrome://browser/content/browser.js|" +
|
|
"tabPreviews_handleEvent/<@chrome://browser/content/browser.js|",
|
|
|
|
// tabPreviews.capture()
|
|
"tabPreviews_capture@chrome://browser/content/browser.js|" +
|
|
"@chrome://browser/content/browser.js|"
|
|
];
|
|
|
|
const PREF_PRELOAD = "browser.newtab.preload";
|
|
|
|
/*
|
|
* This test ensures that there are no unexpected
|
|
* uninterruptible reflows when opening new tabs.
|
|
*/
|
|
function test() {
|
|
waitForExplicitFinish();
|
|
|
|
Services.prefs.setBoolPref(PREF_PRELOAD, false);
|
|
registerCleanupFunction(() => Services.prefs.clearUserPref(PREF_PRELOAD));
|
|
|
|
// Add a reflow observer and open a new tab.
|
|
docShell.addWeakReflowObserver(observer);
|
|
BrowserOpenTab();
|
|
|
|
// Wait until the tabopen animation has finished.
|
|
waitForTransitionEnd(function () {
|
|
// Remove reflow observer and clean up.
|
|
docShell.removeWeakReflowObserver(observer);
|
|
gBrowser.removeCurrentTab();
|
|
|
|
finish();
|
|
});
|
|
}
|
|
|
|
let observer = {
|
|
reflow: function (start, end) {
|
|
// Gather information about the current code path.
|
|
let path = (new Error().stack).split("\n").slice(1).map(line => {
|
|
return line.replace(/:\d+:\d+$/, "");
|
|
}).join("|");
|
|
let pathWithLineNumbers = (new Error().stack).split("\n").slice(1).join("|");
|
|
|
|
// Stack trace is empty. Reflow was triggered by native code.
|
|
if (path === "") {
|
|
return;
|
|
}
|
|
|
|
// Check if this is an expected reflow.
|
|
for (let stack of EXPECTED_REFLOWS) {
|
|
if (path.startsWith(stack)) {
|
|
ok(true, "expected uninterruptible reflow '" + stack + "'");
|
|
return;
|
|
}
|
|
}
|
|
|
|
ok(false, "unexpected uninterruptible reflow '" + pathWithLineNumbers + "'");
|
|
},
|
|
|
|
reflowInterruptible: function (start, end) {
|
|
// We're not interested in interruptible reflows.
|
|
},
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIReflowObserver,
|
|
Ci.nsISupportsWeakReference])
|
|
};
|
|
|
|
function waitForTransitionEnd(callback) {
|
|
let tab = gBrowser.selectedTab;
|
|
tab.addEventListener("transitionend", function onEnd(event) {
|
|
if (event.propertyName === "max-width") {
|
|
tab.removeEventListener("transitionend", onEnd);
|
|
executeSoon(callback);
|
|
}
|
|
});
|
|
}
|