📺 Move fullscreen web content to a new Activity.

chrome/android/javatests/src/org/chromium/chrome/browser/FullscreenWebContentsActivityTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/FullscreenWebContentsActivityTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/FullscreenWebContentsActivityTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/FullscreenWebContentsActivityTest.java
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+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/FullscreenWebContentsActivityTest.java
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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.provider.Browser;
+import android.support.test.filters.MediumTest;
+import android.support.test.rule.UiThreadTestRule;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.chromium.base.ApplicationStatus;
+import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.chrome.test.ChromeActivityTestRule;
+import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
+import org.chromium.content.browser.test.util.Criteria;
+import org.chromium.content.browser.test.util.CriteriaHelper;
+import org.chromium.content.browser.test.util.DOMUtils;
+import org.chromium.content.common.ContentSwitches;
+import org.chromium.content_public.browser.WebContents;
+import org.chromium.net.test.EmbeddedTestServer;
+/**
+ * Tests for FullscreenWebContentsActivity.
+ */
+@RunWith(ChromeJUnit4ClassRunner.class)
+@CommandLineFlags.Add({ChromeSwitches.DISABLE_FIRST_RUN_EXPERIENCE,
+        ContentSwitches.DISABLE_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK,
+        "enable-features=" + ChromeFeatureList.FULLSCREEN_ACTIVITY})
+public class FullscreenWebContentsActivityTest {
+    private static final String TEST_PATH = "/content/test/data/media/video-player.html";
+    private static final String VIDEO_ID = "video";
+
+    @Rule
+    public UiThreadTestRule mUiThreadTestRule = new UiThreadTestRule();
+    @Rule
+    public ChromeActivityTestRule<ChromeTabbedActivity> mActivityTestRule =
+            new ChromeActivityTestRule<>(ChromeTabbedActivity.class);
+
+    private EmbeddedTestServer mTestServer;
+    private ChromeTabbedActivity mActivity;
+
+    @Before
+    public void setUp() throws InterruptedException {
+        mTestServer = EmbeddedTestServer.createAndStartServer(
+                mActivityTestRule.getInstrumentation().getContext());
+        mActivityTestRule.startMainActivityWithURL(mTestServer.getURL(TEST_PATH));
+        mActivity = mActivityTestRule.getActivity();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        mTestServer.stopAndDestroyServer();
+    }
+
+    /**
+     * Manually moves a Tab from a ChromeTabbedActivity to a FullscreenWebContentsActivity and back.
+     */
+    @Test
+    @MediumTest
+    public void testTransfer() throws Throwable {
+        final Tab tab = mActivityTestRule.getActivity().getActivityTab();
+
+        moveTabToActivity(mActivity, tab, FullscreenWebContentsActivity.class);
+        waitForActivity(FullscreenWebContentsActivity.class);
+
+        final FullscreenWebContentsActivity fullscreenActivity =
+                (FullscreenWebContentsActivity) ApplicationStatus.getLastTrackedFocusedActivity();
+        Assert.assertEquals(tab.getId(), fullscreenActivity.getActivityTab().getId());
+
+        moveTabToActivity(fullscreenActivity, tab, ChromeTabbedActivity.class);
+        waitForActivity(ChromeTabbedActivity.class);
+    }
+
+    /**
+     * Manually moves the Tab to an Activity.
+     */
+    private void moveTabToActivity(final Activity fromActivity, final Tab tab,
+            final Class<? extends ChromeActivity> targetClass) throws Throwable {
+        mUiThreadTestRule.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Intent intent = new Intent(fromActivity, targetClass);
+                intent.putExtra(
+                        IntentHandler.EXTRA_PARENT_COMPONENT, fromActivity.getComponentName());
+                intent.putExtra(Browser.EXTRA_APPLICATION_ID, fromActivity.getPackageName());
+
+                if (targetClass == FullscreenWebContentsActivity.class) {
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                }
+
+                tab.detachAndStartReparenting(intent, null, null);
+            }
+        });
+    }
+
+    /**
+     * Waits for an Activity of the given class to be started and for it to have a Tab.
+     */
+    private static void waitForActivity(final Class<? extends ChromeActivity> activityClass) {
+        CriteriaHelper.pollUiThread(new Criteria() {
+            @Override
+            public boolean isSatisfied() {
+                Activity lastActivity = ApplicationStatus.getLastTrackedFocusedActivity();
+                if (lastActivity.getClass() != activityClass) return false;
+
+                return ((ChromeActivity) lastActivity).getActivityTab() != null;
+            }
+        });
+    }
+
+    /**
+     * Toggles fullscreen to check FullscreenWebContentsActivity has been started.
+     */
+    @Test
+    @MediumTest
+    public void testFullscreen() throws Throwable {
+        enterFullscreen();
+        // TODO(peconn): Test leaving fullscreen by pressing Back
+        // TODO(peconn): Test leaving fullscreen by DOMUtils.exitFullscreen(WebContents)
+    }
+
+    /**
+     * Clicks on the fullscreen button in the webpage and waits for the
+     * FullscreenWebContentsActivity to be started.
+     */
+    private void enterFullscreen() throws Throwable {
+        // Start playback to guarantee it's properly loaded.
+        WebContents webContents = mActivity.getCurrentContentViewCore().getWebContents();
+        Assert.assertTrue(DOMUtils.isMediaPaused(webContents, VIDEO_ID));
+        DOMUtils.playMedia(webContents, VIDEO_ID);
+        DOMUtils.waitForMediaPlay(webContents, VIDEO_ID);
+
+        // Trigger requestFullscreen() via a click on a button.
+        Assert.assertTrue(DOMUtils.clickNode(mActivity.getCurrentContentViewCore(), "fullscreen"));
+        waitForActivity(FullscreenWebContentsActivity.class);
+    }
+
+    /**
+     * Tests that no flags change on the ChromeTabbedActivity when going fullscreen.
+     */
+    @Test
+    @MediumTest
+    public void testFullscreenFlags() throws Throwable {
+        int old = mActivity.getTabsView().getSystemUiVisibility();
+
+        enterFullscreen();
+
+        Assert.assertEquals(old, mActivity.getTabsView().getSystemUiVisibility());
+        // TODO(peconn): Test again after leaving fullscreen.
+    }
+}