Bug 789392 - Allow mozapp frames to window.close() themselves. r=bz

dom/base/nsGlobalWindow.cpp

@@ -6548,9 +6548,10 @@ nsGlobalWindow::Close()
     return NS_OK;
   }
 
-  // Don't allow scripts from content to close windows
-  // that were not opened by script
-  if (!mHadOriginalOpener && !nsContentUtils::IsCallerTrustedForWrite()) {
+  // Don't allow scripts from content to close non-app windows that were not
+  // opened by script.
+  if (!mDocShell->GetIsApp() &&
+      !mHadOriginalOpener && !nsContentUtils::IsCallerTrustedForWrite()) {
     bool allowClose =
       Preferences::GetBool("dom.allow_scripts_to_close_windows", true);
     if (!allowClose) {

dom/browser-element/mochitest/Makefile.in

@@ -93,6 +93,9 @@ MOCHITEST_FILES = \
 		browserElement_CloseFromOpener.js \
 		test_browserElement_inproc_CloseFromOpener.html \
 		file_browserElement_CloseFromOpener.html \
+		browserElement_CloseApp.js \
+		test_browserElement_inproc_CloseApp.html \
+		file_browserElement_CloseApp.html \
 		browserElement_OpenWindow.js \
 		test_browserElement_inproc_OpenWindow.html \
 		file_browserElement_Open1.html \
@@ -181,6 +184,7 @@ MOCHITEST_FILES += \
 		test_browserElement_oop_PromptConfirm.html \
 		test_browserElement_oop_Close.html \
 		test_browserElement_oop_CloseFromOpener.html \
+		test_browserElement_oop_CloseApp.html \
 		test_browserElement_oop_OpenWindow.html \
 		test_browserElement_oop_OpenWindowInFrame.html \
 		test_browserElement_oop_OpenWindowRejected.html \

dom/browser-element/mochitest/browserElement_CloseApp.js

@@ -0,0 +1,71 @@
+/* Any copyright is dedicated to the public domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Bug 789392 - Test that apps frames can trigger mozbrowserclose by calling
+// window.close(), but browser frames cannot.
+"use strict";
+
+SimpleTest.waitForExplicitFinish();
+
+function runTest() {
+  browserElementTestHelpers.setEnabledPref(true);
+  browserElementTestHelpers.addPermission();
+  SpecialPowers.addPermission("embed-apps", true, window.document);
+
+  addEventListener('unload', function() {
+    SpecialPowers.removePermission("embed-apps", window.document);
+  });
+
+  // Our app frame and browser frame load the same content.  That content calls
+  // window.close() and then alert().  We should get a mozbrowserclose event on
+  // the app frame before the mozbrowsershowmodalprompt, but not on the browser
+  // frame.
+
+  var appFrame = document.createElement('iframe');
+  appFrame.mozbrowser = true;
+  appFrame.setAttribute('mozapp', 'http://example.org/manifest.webapp');
+
+  var browserFrame = document.createElement('iframe');
+  browserFrame.mozbrowser = true;
+
+  var gotAppFrameClose = false;
+  appFrame.addEventListener('mozbrowserclose', function() {
+    ok(true, "Got close from app frame.");
+    gotAppFrameClose = true;
+  });
+
+  var gotAppFrameAlert = false;
+  appFrame.addEventListener('mozbrowsershowmodalprompt', function() {
+    ok(gotAppFrameClose, "Should have gotten app frame close by now.");
+    ok(!gotAppFrameAlert, "Just one alert from the app frame.");
+    gotAppFrameAlert = true;
+    if (gotBrowserFrameAlert && gotAppFrameAlert) {
+      SimpleTest.finish();
+    }
+  });
+
+  browserFrame.addEventListener('mozbrowserclose', function() {
+    ok(false, "Got close from browser frame.");
+  });
+
+  var gotBrowserFrameAlert = false;
+  browserFrame.addEventListener('mozbrowsershowmodalprompt', function() {
+    ok(!gotBrowserFrameAlert, "Just one browser frame alert.");
+    gotBrowserFrameAlert = true;
+    if (gotBrowserFrameAlert && gotAppFrameAlert) {
+      SimpleTest.finish();
+    }
+  });
+
+  document.body.appendChild(appFrame);
+  document.body.appendChild(browserFrame);
+
+  appFrame.src = 'http://example.org/tests/dom/browser-element/mochitest/file_browserElement_CloseApp.html';
+  browserFrame.src = 'http://example.org/tests/dom/browser-element/mochitest/file_browserElement_CloseApp.html';
+}
+
+// The test harness sets dom.allow_scripts_to_close_windows to true (as of
+// writing, anyway).  But that means that browser tabs can close themselves,
+// which is what we want to test /can't/ happen!   For the purposes of this
+// test (and normal browser operation), this pref should be false.
+SpecialPowers.pushPrefEnv({'set': [['dom.allow_scripts_to_close_windows', false]]}, runTest);

dom/browser-element/mochitest/file_browserElement_CloseApp.html

@@ -0,0 +1,12 @@
+<html>
+<body>
+
+file_browserElement_CloseApp.html
+
+<script>
+window.close();
+alert('called close');
+</script>
+
+</body>
+</html>

dom/browser-element/mochitest/test_browserElement_inproc_CloseApp.html

@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Bug 789392</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="browserElementTestHelpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<script type="application/javascript;version=1.7" src="browserElement_CloseApp.js">
+</script>
+</body>
+</html>

dom/browser-element/mochitest/test_browserElement_oop_CloseApp.html

@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Bug 789392</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="browserElementTestHelpers.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<script type="application/javascript;version=1.7" src="browserElement_CloseApp.js">
+</script>
+</body>
+</html>

testing/mochitest/android.json

@@ -130,6 +130,7 @@
  "dom/browser-element/mochitest/test_browserElement_inproc_AppFramePermission.html": "",
  "dom/browser-element/mochitest/test_browserElement_inproc_AppWindowNamespace.html": "TIMED_OUT, bug 783509",
  "dom/browser-element/mochitest/test_browserElement_inproc_SecurityChange.html": "TIMED_OUT, bug 766586",
+ "dom/browser-element/mochitest/test_browserElement_inproc_CloseApp.html": "FAILS, bug 796982",
  "dom/devicestorage": "bug 781789 & bug 782275",
  "dom/imptests/editing/conformancetest/test_event.html": "",
  "dom/imptests/editing/conformancetest/test_runtest.html": "",