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-rw-r--r--dom/base/test/fullscreen/head.js65
1 files changed, 65 insertions, 0 deletions
diff --git a/dom/base/test/fullscreen/head.js b/dom/base/test/fullscreen/head.js
new file mode 100644
index 0000000000..1e3b435d0c
--- /dev/null
+++ b/dom/base/test/fullscreen/head.js
@@ -0,0 +1,65 @@
+function pushPrefs(...aPrefs) {
+ return SpecialPowers.pushPrefEnv({ set: aPrefs });
+}
+
+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(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: ChromeUtils.generateQI([
+ "nsIWebProgressListener",
+ "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());