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-rw-r--r--browser/base/content/test/general/browser_bug495058.js57
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diff --git a/browser/base/content/test/general/browser_bug495058.js b/browser/base/content/test/general/browser_bug495058.js
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+++ b/browser/base/content/test/general/browser_bug495058.js
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+/**
+ * Tests that the right elements of a tab are focused when it is
+ * torn out into its own window.
+ */
+
+const URIS = [
+ "about:blank",
+ "about:home",
+ "about:sessionrestore",
+ "about:privatebrowsing",
+];
+
+add_task(async function() {
+ for (let uri of URIS) {
+ let tab = BrowserTestUtils.addTab(gBrowser);
+ BrowserTestUtils.loadURI(tab.linkedBrowser, uri);
+ await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+
+ let win = gBrowser.replaceTabWithWindow(tab);
+
+ let contentPainted = Promise.resolve();
+ // In the e10s case, we wait for the content to first paint before we focus
+ // the URL in the new window, to optimize for content paint time.
+ if (tab.linkedBrowser.isRemoteBrowser) {
+ contentPainted = BrowserTestUtils.waitForContentEvent(
+ tab.linkedBrowser,
+ "MozAfterPaint"
+ );
+ }
+
+ await TestUtils.topicObserved(
+ "browser-delayed-startup-finished",
+ subject => subject == win
+ );
+ await contentPainted;
+ tab = win.gBrowser.selectedTab;
+
+ Assert.equal(
+ win.gBrowser.currentURI.spec,
+ uri,
+ uri + ": uri loaded in detached tab"
+ );
+
+ const expectedActiveElement = tab.isEmpty
+ ? win.gURLBar.inputField
+ : win.gBrowser.selectedBrowser;
+ Assert.equal(
+ win.document.activeElement,
+ expectedActiveElement,
+ `${uri}: the active element is expected: ${win.document.activeElement?.nodeName}`
+ );
+ Assert.equal(win.gURLBar.value, "", uri + ": urlbar is empty");
+ Assert.ok(win.gURLBar.placeholder, uri + ": placeholder text is present");
+
+ await BrowserTestUtils.closeWindow(win);
+ }
+});