1 files changed, 96 insertions, 0 deletions
diff --git a/dom/browser-element/mochitest/browserElement_Manifestchange.js b/dom/browser-element/mochitest/browserElement_Manifestchange.js
new file mode 100644
index 000000000..22cf8fe7c
--- /dev/null
+++ b/dom/browser-element/mochitest/browserElement_Manifestchange.js
@@ -0,0 +1,96 @@
+/* Any copyright is dedicated to the public domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that the onmozbrowsermanifestchange event works.
+"use strict";
+
+SimpleTest.waitForExplicitFinish();
+browserElementTestHelpers.setEnabledPref(true);
+browserElementTestHelpers.addPermission();
+
+function createHtml(manifest) {
+  return 'data:text/html,<html xmlns:xml="http://www.w3.org/XML/1998/namespace"><head>' + manifest + '<body></body></html>';
+}
+
+function createManifest(href) {
+  return '<link rel="manifest" href="' + href + '">';
+}
+
+function runTest() {
+  var iframe1 = document.createElement('iframe');
+  iframe1.setAttribute('mozbrowser', 'true');
+  document.body.appendChild(iframe1);
+
+  // iframe2 is a red herring; we modify its manifest link elements but don't
+  // listen for manifestchanges; we want to make sure that its manifestchange
+  // events aren't picked up by the listener on iframe1.
+  var iframe2 = document.createElement('iframe');
+  iframe2.setAttribute('mozbrowser', 'true');
+  document.body.appendChild(iframe2);
+
+  // iframe3 is another red herring.  It's not a mozbrowser, so we shouldn't
+  // get any manifestchange events on it.
+  var iframe3 = document.createElement('iframe');
+  document.body.appendChild(iframe3);
+
+  var numManifestChanges = 0;
+
+  iframe1.addEventListener('mozbrowsermanifestchange', function(e) {
+
+    numManifestChanges++;
+
+    if (numManifestChanges == 1) {
+      is(e.detail.href, 'manifest.1', 'manifest.1 matches');
+
+      // We should receive manifestchange events when the user creates new
+      // manifests
+      SpecialPowers.getBrowserFrameMessageManager(iframe1)
+                   .loadFrameScript("data:,content.document.title='New title';",
+                                    /* allowDelayedLoad = */ false);
+
+      SpecialPowers.getBrowserFrameMessageManager(iframe1)
+                   .loadFrameScript("data:,content.document.head.insertAdjacentHTML('beforeend', '<link rel=manifest href=manifest.2>')",
+                                    /* allowDelayedLoad = */ false);
+
+      SpecialPowers.getBrowserFrameMessageManager(iframe2)
+                   .loadFrameScript("data:,content.document.head.insertAdjacentHTML('beforeend', '<link rel=manifest href=manifest.2>')",
+                                    /* allowDelayedLoad = */ false);
+    }
+    else if (numManifestChanges == 2) {
+      is(e.detail.href, 'manifest.2', 'manifest.2 matches');
+
+      // Full new pages should trigger manifestchange events
+      iframe1.src = createHtml(createManifest('manifest.3'));
+    }
+    else if (numManifestChanges == 3) {
+      is(e.detail.href, 'manifest.3', 'manifest.3 matches');
+
+      // Test setting a page with multiple manifest link elements
+      iframe1.src = createHtml(createManifest('manifest.4a') + createManifest('manifest.4b'));
+    }
+    else if (numManifestChanges == 4) {
+      is(e.detail.href, 'manifest.4a', 'manifest.4a matches');
+      // 2 events will be triggered by previous test, wait for next
+    }
+    else if (numManifestChanges == 5) {
+      is(e.detail.href, 'manifest.4b', 'manifest.4b matches');
+      SimpleTest.finish();
+    } else {
+      ok(false, 'Too many manifestchange events.');
+    }
+  });
+
+  iframe3.addEventListener('mozbrowsermanifestchange', function(e) {
+    ok(false, 'Should not get a manifestchange event for iframe3.');
+  });
+
+
+  iframe1.src = createHtml(createManifest('manifest.1'));
+  // We should not receive manifest change events for either of the below iframes
+  iframe2.src = createHtml(createManifest('manifest.1'));
+  iframe3.src = createHtml(createManifest('manifest.1'));
+
+}
+
+addEventListener('testready', runTest);
+