1 files changed, 106 insertions, 0 deletions
diff --git a/toolkit/components/pictureinpicture/tests/browser_videoSelection.js b/toolkit/components/pictureinpicture/tests/browser_videoSelection.js
new file mode 100644
index 0000000000..f887f158c1
--- /dev/null
+++ b/toolkit/components/pictureinpicture/tests/browser_videoSelection.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that the correct video is opened in the
+ * Picture-in-Picture player when opened via keyboard shortcut.
+ * The shortcut will open the first unpaused video
+ * or the longest video on the page.
+ */
+add_task(async function test_video_selection() {
+  await BrowserTestUtils.withNewTab(
+    {
+      url: TEST_ROOT + "test-video-selection.html",
+      gBrowser,
+    },
+    async browser => {
+      await ensureVideosReady(browser);
+
+      let pipVideoID = await SpecialPowers.spawn(browser, [], () => {
+        let videoList = content.document.querySelectorAll("video");
+        let longestDuration = -1;
+        let pipVideoID = null;
+
+        for (let video of videoList) {
+          if (!video.paused) {
+            pipVideoID = video.id;
+            break;
+          }
+          if (video.duration > longestDuration) {
+            pipVideoID = video.id;
+            longestDuration = video.duration;
+          }
+        }
+        return pipVideoID;
+      });
+
+      let domWindowOpened = BrowserTestUtils.domWindowOpenedAndLoaded(null);
+      let videoReady = SpecialPowers.spawn(
+        browser,
+        [pipVideoID],
+        async videoID => {
+          let video = content.document.getElementById(videoID);
+          await ContentTaskUtils.waitForCondition(() => {
+            return video.isCloningElementVisually;
+          }, "Video is being cloned visually.");
+        }
+      );
+
+      let eventObj = { accelKey: true, shiftKey: true };
+      if (AppConstants.platform == "macosx") {
+        eventObj.altKey = true;
+      }
+      EventUtils.synthesizeKey("]", eventObj, window);
+
+      let pipWin = await domWindowOpened;
+      await videoReady;
+
+      ok(pipWin, "Got Picture-in-Picture window.");
+
+      await ensureMessageAndClosePiP(browser, pipVideoID, pipWin, false);
+
+      pipVideoID = await SpecialPowers.spawn(browser, [], () => {
+        let videoList = content.document.querySelectorAll("video");
+        videoList[1].play();
+        videoList[2].play();
+        let longestDuration = -1;
+        let pipVideoID = null;
+
+        for (let video of videoList) {
+          if (!video.paused) {
+            pipVideoID = video.id;
+            break;
+          }
+          if (video.duration > longestDuration) {
+            pipVideoID = video.id;
+            longestDuration = video.duration;
+          }
+        }
+
+        return pipVideoID;
+      });
+
+      // Next time we want to use a keyboard shortcut with the main window in focus again.
+      await SimpleTest.promiseFocus(browser);
+
+      domWindowOpened = BrowserTestUtils.domWindowOpenedAndLoaded(null);
+      videoReady = SpecialPowers.spawn(browser, [pipVideoID], async videoID => {
+        let video = content.document.getElementById(videoID);
+        await ContentTaskUtils.waitForCondition(() => {
+          return video.isCloningElementVisually;
+        }, "Video is being cloned visually.");
+      });
+
+      EventUtils.synthesizeKey("]", eventObj, window);
+
+      pipWin = await domWindowOpened;
+      await videoReady;
+
+      ok(pipWin, "Got Picture-in-Picture window.");
+
+      await ensureMessageAndClosePiP(browser, pipVideoID, pipWin, false);
+    }
+  );
+});