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-rw-r--r--dom/html/test/head.js54
1 files changed, 54 insertions, 0 deletions
diff --git a/dom/html/test/head.js b/dom/html/test/head.js
new file mode 100644
index 000000000..7f5db315e
--- /dev/null
+++ 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());