1 files changed, 97 insertions, 0 deletions
diff --git a/java/com/android/incallui/videotech/empty/EmptyVideoTech.java b/java/com/android/incallui/videotech/empty/EmptyVideoTech.java
new file mode 100644
index 000000000..d0a111d62
--- /dev/null
+++ b/java/com/android/incallui/videotech/empty/EmptyVideoTech.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 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.incallui.videotech.empty;
+
+import android.content.Context;
+import com.android.dialer.common.Assert;
+import com.android.incallui.video.protocol.VideoCallScreen;
+import com.android.incallui.video.protocol.VideoCallScreenDelegate;
+import com.android.incallui.videotech.VideoTech;
+import com.android.incallui.videotech.utils.SessionModificationState;
+
+/** Default video tech that is always available but doesn't do anything. */
+public class EmptyVideoTech implements VideoTech {
+
+  @Override
+  public boolean isAvailable(Context context) {
+    return false;
+  }
+
+  @Override
+  public boolean isTransmittingOrReceiving() {
+    return false;
+  }
+
+  @Override
+  public boolean isSelfManagedCamera() {
+    return false;
+  }
+
+  @Override
+  public boolean shouldUseSurfaceView() {
+    return false;
+  }
+
+  @Override
+  public VideoCallScreenDelegate createVideoCallScreenDelegate(
+      Context context, VideoCallScreen videoCallScreen) {
+    throw Assert.createUnsupportedOperationFailException();
+  }
+
+  @Override
+  public void onCallStateChanged(Context context, int newState) {}
+
+  @Override
+  public int getSessionModificationState() {
+    return SessionModificationState.NO_REQUEST;
+  }
+
+  @Override
+  public void upgradeToVideo() {}
+
+  @Override
+  public void acceptVideoRequest() {}
+
+  @Override
+  public void acceptVideoRequestAsAudio() {}
+
+  @Override
+  public void declineVideoRequest() {}
+
+  @Override
+  public boolean isTransmitting() {
+    return false;
+  }
+
+  @Override
+  public void stopTransmission() {}
+
+  @Override
+  public void resumeTransmission() {}
+
+  @Override
+  public void pause() {}
+
+  @Override
+  public void unpause() {}
+
+  @Override
+  public void setCamera(String cameraId) {}
+
+  @Override
+  public void setDeviceOrientation(int rotation) {}
+}