Bug 1191597 part 1 - Add head.js and dummy page for browser chrome test. r=smaug

--HG-- extra : source : 1cf0a54ddb55b0434fa44851bf11be7415d0a27d
2016-01-11 09:38:53 +11:00 · 2016-01-11 09:38:53 +11:00 · 1565a19749
--- a/dom/html/test/browser.ini
+++ b/dom/html/test/browser.ini
@ -1,8 +1,10 @@
 [DEFAULT]
 support-files =
  bug592641_img.jpg
+  dummy_page.html
  file_bug649778.html
  file_bug649778.html^headers^
+  head.js

 [browser_bug592641.js]
 [browser_bug649778.js]
--- a/dom/html/test/dummy_page.html
+++ b/dom/html/test/dummy_page.html
@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<title>Dummy test page</title>
+<meta charset="utf-8"/>
+</head>
+<body>
+<p>Dummy test page</p>
+</body>
+</html>
--- a/dom/html/test/head.js
+++ b/dom/html/test/head.js
@ -0,0 +1,54 @@
+function pushPrefs(...aPrefs) {
+  return new Promise(resolve => {
+    SpecialPowers.pushPrefEnv({"set": aPrefs}, resolve);
+  });
+}
+
+function promiseWaitForEvent(object, eventName, capturing = false, chrome = false) {
+  return new Promise((resolve) => {
+    function listener(event) {
+      info("Saw " + eventName);
+      object.removeEventListener(eventName, listener, capturing, chrome);
+      resolve(event);
+    }
+
+    info("Waiting for " + eventName);
+    object.addEventListener(eventName, listener, capturing, chrome);
+  });
+}
+
+/**
+ * Waits for the next load to complete in any browser or the given browser.
+ * If a <tabbrowser> is given it waits for a load in any of its browsers.
+ *
+ * @return promise
+ */
+function waitForDocLoadComplete(aBrowser=gBrowser) {
+  return new Promise(resolve => {
+    let listener = {
+      onStateChange: function (webProgress, req, flags, status) {
+        let docStop = Ci.nsIWebProgressListener.STATE_IS_NETWORK |
+                      Ci.nsIWebProgressListener.STATE_STOP;
+        info("Saw state " + flags.toString(16) + " and status " + status.toString(16));
+        // When a load needs to be retargetted to a new process it is cancelled
+        // with NS_BINDING_ABORTED so ignore that case
+        if ((flags & docStop) == docStop && status != Cr.NS_BINDING_ABORTED) {
+          aBrowser.removeProgressListener(this);
+          waitForDocLoadComplete.listeners.delete(this);
+          let chan = req.QueryInterface(Ci.nsIChannel);
+          info("Browser loaded " + chan.originalURI.spec);
+          resolve();
+        }
+      },
+      QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+                                             Ci.nsISupportsWeakReference])
+    };
+    aBrowser.addProgressListener(listener);
+    waitForDocLoadComplete.listeners.add(listener);
+    info("Waiting for browser load");
+  });
+}
+// Keep a set of progress listeners for waitForDocLoadComplete() to make sure
+// they're not GC'ed before we saw the page load.
+waitForDocLoadComplete.listeners = new Set();
+registerCleanupFunction(() => waitForDocLoadComplete.listeners.clear());