Merge "Broadcast inputId upon selection to LauncherX" into sc-dev

2 files changed, 62 insertions, 1 deletions

diff --git a/src/com/android/tv/MainActivity.java b/src/com/android/tv/MainActivity.java
index 9c615b93..8dbafe47 100644
--- a/src/com/android/tv/MainActivity.java
+++ b/src/com/android/tv/MainActivity.java
@@ -149,6 +149,7 @@ import com.android.tv.ui.sidepanel.parentalcontrols.RatingsFragment;
 import com.android.tv.util.AsyncDbTask;
 import com.android.tv.util.AsyncDbTask.DbExecutor;
 import com.android.tv.util.CaptionSettings;
+import com.android.tv.util.GtvUtils;
 import com.android.tv.util.OnboardingUtils;
 import com.android.tv.util.SetupUtils;
 import com.android.tv.util.TvInputManagerHelper;
@@ -456,7 +457,11 @@ public class MainActivity extends Activity
                 }
 
                 @Override
-                public void onChannelChanged(Channel previousChannel, Channel currentChannel) {}
+                public void onChannelChanged(Channel previousChannel, Channel currentChannel) {
+                    if (currentChannel != null) {
+                        GtvUtils.broadcastInputId(MainActivity.this, currentChannel.getInputId());
+                    }
+                }
             };
 
     private final Runnable mRestoreMainViewRunnable = this::restoreMainTvView;
diff --git a/src/com/android/tv/util/GtvUtils.java b/src/com/android/tv/util/GtvUtils.java
new file mode 100644
index 00000000..eb50e062
--- /dev/null
+++ b/src/com/android/tv/util/GtvUtils.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.tv.util;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.util.Log;
+
+/** A utility class for Google TV */
+public class GtvUtils {
+    private static final String TAG = "GtvUtils";
+    private static final String AMATI_FEATURE = "com.google.android.feature.AMATI_EXPERIENCE";
+    private static final String PERMISSION_WRITE_EPG_DATA =
+            "com.android.providers.tv.permission.WRITE_EPG_DATA";
+    private static final String ACTION_INPUT_SELECTED = "android.apps.tv.launcherx.INPUT_SELECTED";
+    private static final String EXTRA_INPUT_ID = "extra_input_id";
+    private static final String LAUNCHERX_PACKAGE_NAME = "com.google.android.apps.tv.launcherx";
+    private static Boolean mEnabled = null;
+
+    private static boolean isEnabled(Context context) {
+        if (mEnabled == null) {
+            PackageManager pm = context.getPackageManager();
+            mEnabled = pm.hasSystemFeature(AMATI_FEATURE);
+        }
+        return mEnabled;
+    }
+
+    /** Broadcasts the intent with inputId to the Launcher */
+    public static void broadcastInputId(Context context, String inputId) {
+        if (isEnabled(context)) {
+            if (inputId == null) {
+                Log.e(TAG, "Will not broadcast inputId because it is null");
+            } else {
+                Intent intent = new Intent(ACTION_INPUT_SELECTED);
+                intent.putExtra(EXTRA_INPUT_ID, inputId);
+                intent.setPackage(LAUNCHERX_PACKAGE_NAME);
+                context.sendBroadcast(intent, PERMISSION_WRITE_EPG_DATA);
+            }
+        }
+    }
+}