[Android] A prototype of the interactive media notification.

chrome/android/java_staging/src/org/chromium/chrome/browser/tab/ChromeTab.java

 // Copyright 2015 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.tab;
 
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
@@ skipping 19 matching lines @@
 import org.chromium.chrome.browser.EmptyTabObserver;
 import org.chromium.chrome.browser.FrozenNativePage;
 import org.chromium.chrome.browser.IntentHandler.TabOpenType;
 import org.chromium.chrome.browser.NativePage;
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.TabObserver;
 import org.chromium.chrome.browser.TabState;
 import org.chromium.chrome.browser.TabUma;
 import org.chromium.chrome.browser.TabUma.TabCreationState;
 import org.chromium.chrome.browser.UrlConstants;
+import org.chromium.chrome.browser.UrlUtilities;
 import org.chromium.chrome.browser.contextmenu.ChromeContextMenuPopulator;
 import org.chromium.chrome.browser.contextmenu.ContextMenuParams;
 import org.chromium.chrome.browser.contextmenu.ContextMenuPopulator;
 import org.chromium.chrome.browser.contextualsearch.ContextualSearchTabHelper;
 import org.chromium.chrome.browser.crash.MinidumpUploadService;
 import org.chromium.chrome.browser.dom_distiller.ReaderModeActivityDelegate;
 import org.chromium.chrome.browser.dom_distiller.ReaderModeManager;
 import org.chromium.chrome.browser.download.ChromeDownloadDelegate;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler.OverrideUrlLoadingResult;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationParams;
 import org.chromium.chrome.browser.fullscreen.FullscreenManager;
 import org.chromium.chrome.browser.media.MediaNotificationService;
+import org.chromium.chrome.browser.media.ui.MediaInfo;
+import org.chromium.chrome.browser.media.ui.MediaPlaybackControls;
+import org.chromium.chrome.browser.media.ui.NotificationMediaPlaybackControls;
 import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
 import org.chromium.chrome.browser.ntp.NativePageAssassin;
 import org.chromium.chrome.browser.ntp.NativePageFactory;
 import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
 import org.chromium.chrome.browser.policy.PolicyAuditor;
 import org.chromium.chrome.browser.policy.PolicyAuditor.AuditEvent;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.rlz.RevenueStats;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
 import org.chromium.chrome.browser.tab.BackgroundContentViewHelper.BackgroundContentViewDelegate;
@@ skipping 16 matching lines @@
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.NavigationController;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_public.browser.WebContentsObserver;
 import org.chromium.content_public.common.ConsoleMessageLevel;
 import org.chromium.content_public.common.Referrer;
 import org.chromium.ui.WindowOpenDisposition;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
 
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.Locale;
 
 /**
  * A representation of a Tab for Chrome. This manages wrapping a WebContents and interacting with
  * most of Chromium while representing a consistent version of web content to the front end.
  */
 public class ChromeTab extends Tab {
     public static final int NTP_TAB_ID = -2;
 
-    private static final String TAG = "ChromeTab";
+    private static final String TAG = "cr.ChromeTab";
 
     // URL didFailLoad error code. Should match the value in net_error_list.h.
     public static final int BLOCKED_BY_ADMINISTRATOR = -22;
 
     public static final String PAGESPEED_PASSTHROUGH_HEADER = "Chrome-Proxy: pass-through";
 
     private static final int MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD = 1;
 
     /** The maximum amount of time to wait for a page to load before entering fullscreen.  -1 means
      *  wait until the page finishes loading. */
@@ skipping 244 matching lines @@
     @Override
     protected TabChromeWebContentsDelegateAndroid createWebContentsDelegate() {
         return new TabChromeWebContentsDelegateAndroidImpl();
     }
 
     /**
      * An implementation for this tab's web contents delegate.
      */
     public class TabChromeWebContentsDelegateAndroidImpl
             extends TabChromeWebContentsDelegateAndroid {
+        private MediaPlaybackControls.Listener mControlsListener =
+                new MediaPlaybackControls.Listener() {
+            @Override
+            public void onPlay() {
+                TabChromeWebContentsDelegateAndroidImpl
+                        .nativeOnMediaControlsResume(getWebContents());
+                NotificationMediaPlaybackControls notificationControls =
+                        NotificationMediaPlaybackControls.getOrCreate(getApplicationContext());
+                notificationControls.onPlaybackStateChanged(
+                        MediaInfo.PAUSED, MediaInfo.PLAYING);
+            }
+
+            @Override
+            public void onPause() {
+                TabChromeWebContentsDelegateAndroidImpl
+                        .nativeOnMediaControlsPause(getWebContents());
+                NotificationMediaPlaybackControls notificationControls =
+                        NotificationMediaPlaybackControls.getOrCreate(getApplicationContext());
+                notificationControls.onPlaybackStateChanged(
+                        MediaInfo.PLAYING, MediaInfo.PAUSED);
+            }
+        };
+
         /**
          * This method is meant to be overridden by DocumentTab because the
          * TabModelSelector returned by the activity is not correct.
          * TODO(dfalcantara): remove this when DocumentActivity.getTabModelSelector()
          * will return the right TabModelSelector.
          */
         protected TabModel getTabModel() {
             return mActivity.getTabModelSelector().getModel(isIncognito());
         }
 
@@ skipping 112 matching lines @@
                 // interfere with other parts of the activity (e.g. the URL bar).
                 if (event.getKeyCode() == KeyEvent.KEYCODE_ESCAPE && event.hasNoModifiers()) {
                     WebContents wc = getWebContents();
                     if (wc != null) wc.stop();
                     return;
                 }
             }
             handleMediaKey(event);
         }
 
+        @Override
+        public void showMediaControls(boolean isPaused) {
+            NotificationMediaPlaybackControls notificationControls =
+                    NotificationMediaPlaybackControls.getOrCreate(getApplicationContext());
+            notificationControls.addListener(mControlsListener);
+            String originForDisplay = getUrl();

[mlamouri (slow - plz ping), 2015/06/18 16:43:22]

That means that we show the origin of the top frame even if the sound comes from
an iframe, right? Is that what we want?

[mlamouri (slow - plz ping), 2015/06/22 14:34:17]

You didn't address that, did you? Maybe we should ask rolfe@ what she thinks
about it? I guess the user shouldn't be confused if they see "someband.com is
playing" while actually soundcloud.com is playing but I prefer to make sure.

[whywhat, 2015/06/23 19:39:10]

It would be confusing for the user to see "youtube.com" if they're on
"facebook.com". The page is what the user cares about I think. Let's ask Rebecca
indeed.

+            try {
+                originForDisplay = UrlUtilities.getOriginForDisplay(new URI(getUrl()), true);
+            } catch (URISyntaxException e) {
+                Log.e(TAG, "Wrong syntax for the tab URL when playing media. Showing the URL.");
+            }
+            notificationControls.show(new MediaInfo(
+                    getTitle(),
+                    isPaused ? MediaInfo.PAUSED : MediaInfo.PLAYING,
+                    originForDisplay,
+                    getId()));
+        }
+
+        @Override
+        public void hideMediaControls() {
+            NotificationMediaPlaybackControls notificationControls =
+                    NotificationMediaPlaybackControls.getOrCreate(getApplicationContext());
+            notificationControls.hide(getId());
+            notificationControls.removeListener(mControlsListener);
+        }
+
         /**
          * Redispatches unhandled media keys. This allows bluetooth headphones with play/pause or
          * other buttons to function correctly.
          */
         @TargetApi(19)
         private void handleMediaKey(KeyEvent e) {
             if (Build.VERSION.SDK_INT < 19) return;
             switch (e.getKeyCode()) {
                 case KeyEvent.KEYCODE_MUTE:
                 case KeyEvent.KEYCODE_HEADSETHOOK:
@@ skipping 31 matching lines @@
         private boolean isCapturingVideo() {
             return !isClosing() && super.nativeIsCapturingVideo(getWebContents());
         }
 
         /**
          * @return Whether audio is being played.
          */
         private boolean hasAudibleAudio() {
             return !isClosing() && super.nativeHasAudibleAudio(getWebContents());
         }
-
     }
 
     /**
      * Check whether the context menu download should be intercepted.
      *
      * @param url URL to be downloaded.
      * @return whether the download should be intercepted.
      */
     protected boolean shouldInterceptContextMenuDownload(String url) {
         return mDownloadDelegate.shouldInterceptContextMenuDownload(url);
@@ skipping 324 matching lines @@
             public void didDetachInterstitialPage() {
                 if (!maybeShowNativePage(getUrl(), false)) {
                     showRenderedPage();
                 }
             }
 
             @Override
             public void destroy() {
                 MediaNotificationService.updateMediaNotificationForTab(
                         getApplicationContext(), getId(), false, false, false, getUrl());
+                NotificationMediaPlaybackControls notificationControls =
+                        NotificationMediaPlaybackControls.getOrCreate(getApplicationContext());
+                notificationControls.hide(getId());
                 super.destroy();
             }
         };
     }
 
     @Override
     protected void didStartPageLoad(String validatedUrl, boolean showingErrorPage) {
         if (mBackgroundContentViewHelper.isPageSwappingInProgress()) {
             mLoadProgressAtViewSwapInTime = 0;
         }
@@ skipping 502 matching lines @@
                 didFinishPageLoad();
             }
         }
     };
 
     @VisibleForTesting
     public OverrideUrlLoadingResult getLastOverrideUrlLoadingResultForTests() {
         return mLastOverrideUrlLoadingResult;
     }
 }