LiveTv TIAS Integration ViewCallback data requests

The TvInteractiveAppView.TvInteractiveAppCallback contains
many methods which act as requests for data from the
application which the TIAS is currently running on top of.
This CL implements these callback methods for the LiveTv
MainActivity.

Bug: 241110408
Test: Manually with Cuttlefish and SampleTIAS
Change-Id: I46406c961206407ed49d006dca5bcdefcfe55419

3 files changed, 78 insertions, 5 deletions

diff --git a/src/com/android/tv/data/StreamInfo.java b/src/com/android/tv/data/StreamInfo.java
index e4237bf4..f323423c 100644
--- a/src/com/android/tv/data/StreamInfo.java
+++ b/src/com/android/tv/data/StreamInfo.java
@@ -44,6 +44,8 @@ public interface StreamInfo {
 
     int getAudioChannelCount();
 
+    float getStreamVolume();
+
     boolean hasClosedCaption();
 
     boolean isVideoAvailable();
diff --git a/src/com/android/tv/interactive/IAppManager.java b/src/com/android/tv/interactive/IAppManager.java
index 7d8069c5..9d78515c 100644
--- a/src/com/android/tv/interactive/IAppManager.java
+++ b/src/com/android/tv/interactive/IAppManager.java
@@ -18,6 +18,7 @@ package com.android.tv.interactive;
 
 import android.annotation.TargetApi;
 import android.graphics.Rect;
+import android.media.tv.TvTrackInfo;
 import android.media.tv.interactive.TvInteractiveAppManager;
 import android.media.tv.AitInfo;
 import android.media.tv.interactive.TvInteractiveAppServiceInfo;
@@ -31,9 +32,11 @@ import android.view.View;
 import com.android.tv.MainActivity;
 import com.android.tv.R;
 import com.android.tv.common.SoftPreconditions;
+import com.android.tv.data.api.Channel;
 import com.android.tv.features.TvFeatures;
 import com.android.tv.ui.TunableTvView;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -175,19 +178,80 @@ public class IAppManager {
         public void onSetVideoBounds(String iAppServiceId, Rect rect) {}
 
         @Override
-        public void onRequestCurrentChannelUri(String iAppServiceId) {}
+        public void onRequestCurrentChannelUri(String iAppServiceId) {
+            if (mTvIAppView == null) {
+                return;
+            }
+            Channel currentChannel = mMainActivity.getCurrentChannel();
+            Uri currentUri = (currentChannel == null)
+                    ? null
+                    : currentChannel.getUri();
+            mTvIAppView.sendCurrentChannelUri(currentUri);
+        }
 
         @Override
-        public void onRequestCurrentChannelLcn(String iAppServiceId) {}
+        public void onRequestCurrentChannelLcn(String iAppServiceId) {
+            if (mTvIAppView == null) {
+                return;
+            }
+            Channel currentChannel = mMainActivity.getCurrentChannel();
+            if (currentChannel == null || currentChannel.getDisplayNumber() == null) {
+                return;
+            }
+            // Expected format is major channel number, delimiter, minor channel number
+            String displayNumber = currentChannel.getDisplayNumber();
+            String format = "[0-9]+" + Channel.CHANNEL_NUMBER_DELIMITER + "[0-9]+";
+            if (!displayNumber.matches(format)) {
+                return;
+            }
+            // Major channel number is returned
+            String[] numbers = displayNumber.split(
+                    String.valueOf(Channel.CHANNEL_NUMBER_DELIMITER));
+            mTvIAppView.sendCurrentChannelLcn(Integer.parseInt(numbers[0]));
+        }
 
         @Override
-        public void onRequestStreamVolume(String iAppServiceId) {}
+        public void onRequestStreamVolume(String iAppServiceId) {
+            if (mTvIAppView == null || mTvView == null) {
+                return;
+            }
+            mTvIAppView.sendStreamVolume(mTvView.getStreamVolume());
+        }
 
         @Override
-        public void onRequestTrackInfoList(String iAppServiceId) {}
+        public void onRequestTrackInfoList(String iAppServiceId) {
+            if (mTvIAppView == null || mTvView == null) {
+                return;
+            }
+            List<TvTrackInfo> allTracks = new ArrayList<>();
+            int[] trackTypes = new int[] {TvTrackInfo.TYPE_AUDIO,
+                    TvTrackInfo.TYPE_VIDEO, TvTrackInfo.TYPE_SUBTITLE};
+
+            for (int trackType : trackTypes) {
+                List<TvTrackInfo> currentTracks = mTvView.getTracks(trackType);
+                if (currentTracks == null) {
+                    continue;
+                }
+                for (TvTrackInfo track : currentTracks) {
+                    if (track != null) {
+                        allTracks.add(track);
+                    }
+                }
+            }
+            mTvIAppView.sendTrackInfoList(allTracks);
+        }
 
         @Override
-        public void onRequestCurrentTvInputId(String iAppServiceId) {}
+        public void onRequestCurrentTvInputId(String iAppServiceId) {
+            if (mTvIAppView == null) {
+                return;
+            }
+            Channel currentChannel = mMainActivity.getCurrentChannel();
+            String currentInputId = (currentChannel == null)
+                    ? null
+                    : currentChannel.getInputId();
+            mTvIAppView.sendCurrentTvInputId(currentInputId);
+        }
 
         @Override
         public void onRequestSigning(String iAppServiceId, String signingId, String algorithm,
diff --git a/src/com/android/tv/ui/TunableTvView.java b/src/com/android/tv/ui/TunableTvView.java
index d402b205..0ccaad3a 100644
--- a/src/com/android/tv/ui/TunableTvView.java
+++ b/src/com/android/tv/ui/TunableTvView.java
@@ -736,6 +736,13 @@ public class TunableTvView extends FrameLayout implements StreamInfo, TunableTvV
         }
     }
 
+    @Override
+    public float getStreamVolume() {
+        return mIsMuted
+                ? 0
+                : mVolume;
+    }
+
     /**
      * Sets fixed size for the internal {@link android.view.Surface} of {@link
      * android.media.tv.TvView}. If either {@code width} or {@code height} is non positive, the