1 files changed, 151 insertions, 0 deletions
diff --git a/java/com/android/incallui/call/VideoUtils.java b/java/com/android/incallui/call/VideoUtils.java
new file mode 100644
index 000000000..80fbfb1cc
--- /dev/null
+++ b/java/com/android/incallui/call/VideoUtils.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2015 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.call;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.content.ContextCompat;
+import android.telecom.VideoProfile;
+import com.android.dialer.compat.CompatUtils;
+import com.android.dialer.util.DialerUtils;
+import com.android.incallui.call.DialerCall.SessionModificationState;
+import java.util.Objects;
+
+public class VideoUtils {
+
+  private static final String PREFERENCE_CAMERA_ALLOWED_BY_USER = "camera_allowed_by_user";
+
+  public static boolean isVideoCall(@Nullable DialerCall call) {
+    return call != null && isVideoCall(call.getVideoState());
+  }
+
+  public static boolean isVideoCall(int videoState) {
+    return CompatUtils.isVideoCompatible()
+        && (VideoProfile.isTransmissionEnabled(videoState)
+            || VideoProfile.isReceptionEnabled(videoState));
+  }
+
+  public static boolean hasSentVideoUpgradeRequest(@Nullable DialerCall call) {
+    return call != null && hasSentVideoUpgradeRequest(call.getSessionModificationState());
+  }
+
+  public static boolean hasSentVideoUpgradeRequest(@SessionModificationState int state) {
+    return state == DialerCall.SESSION_MODIFICATION_STATE_WAITING_FOR_UPGRADE_TO_VIDEO_RESPONSE
+        || state == DialerCall.SESSION_MODIFICATION_STATE_UPGRADE_TO_VIDEO_REQUEST_FAILED
+        || state == DialerCall.SESSION_MODIFICATION_STATE_REQUEST_REJECTED
+        || state == DialerCall.SESSION_MODIFICATION_STATE_UPGRADE_TO_VIDEO_REQUEST_TIMED_OUT;
+  }
+
+  public static boolean hasReceivedVideoUpgradeRequest(@Nullable DialerCall call) {
+    return call != null && hasReceivedVideoUpgradeRequest(call.getSessionModificationState());
+  }
+
+  public static boolean hasReceivedVideoUpgradeRequest(@SessionModificationState int state) {
+    return state == DialerCall.SESSION_MODIFICATION_STATE_RECEIVED_UPGRADE_TO_VIDEO_REQUEST;
+  }
+
+  public static boolean isBidirectionalVideoCall(DialerCall call) {
+    return CompatUtils.isVideoCompatible() && VideoProfile.isBidirectional(call.getVideoState());
+  }
+
+  public static boolean isTransmissionEnabled(DialerCall call) {
+    if (!CompatUtils.isVideoCompatible()) {
+      return false;
+    }
+
+    return VideoProfile.isTransmissionEnabled(call.getVideoState());
+  }
+
+  public static boolean isIncomingVideoCall(DialerCall call) {
+    if (!VideoUtils.isVideoCall(call)) {
+      return false;
+    }
+    final int state = call.getState();
+    return (state == DialerCall.State.INCOMING) || (state == DialerCall.State.CALL_WAITING);
+  }
+
+  public static boolean isActiveVideoCall(DialerCall call) {
+    return VideoUtils.isVideoCall(call) && call.getState() == DialerCall.State.ACTIVE;
+  }
+
+  public static boolean isOutgoingVideoCall(DialerCall call) {
+    if (!VideoUtils.isVideoCall(call)) {
+      return false;
+    }
+    final int state = call.getState();
+    return DialerCall.State.isDialing(state)
+        || state == DialerCall.State.CONNECTING
+        || state == DialerCall.State.SELECT_PHONE_ACCOUNT;
+  }
+
+  public static boolean isAudioCall(DialerCall call) {
+    if (!CompatUtils.isVideoCompatible()) {
+      return true;
+    }
+
+    return call != null && VideoProfile.isAudioOnly(call.getVideoState());
+  }
+
+  // TODO (ims-vt) Check if special handling is needed for CONF calls.
+  public static boolean canVideoPause(DialerCall call) {
+    return isVideoCall(call) && call.getState() == DialerCall.State.ACTIVE;
+  }
+
+  public static VideoProfile makeVideoPauseProfile(@NonNull DialerCall call) {
+    Objects.requireNonNull(call);
+    if (VideoProfile.isAudioOnly(call.getVideoState())) {
+      throw new IllegalStateException();
+    }
+    return new VideoProfile(getPausedVideoState(call.getVideoState()));
+  }
+
+  public static VideoProfile makeVideoUnPauseProfile(@NonNull DialerCall call) {
+    Objects.requireNonNull(call);
+    return new VideoProfile(getUnPausedVideoState(call.getVideoState()));
+  }
+
+  public static int getUnPausedVideoState(int videoState) {
+    return videoState & (~VideoProfile.STATE_PAUSED);
+  }
+
+  public static int getPausedVideoState(int videoState) {
+    return videoState | VideoProfile.STATE_PAUSED;
+  }
+
+  public static boolean hasCameraPermissionAndAllowedByUser(@NonNull Context context) {
+    return isCameraAllowedByUser(context) && hasCameraPermission(context);
+  }
+
+  public static boolean hasCameraPermission(@NonNull Context context) {
+    return ContextCompat.checkSelfPermission(context, android.Manifest.permission.CAMERA)
+        == PackageManager.PERMISSION_GRANTED;
+  }
+
+  public static boolean isCameraAllowedByUser(@NonNull Context context) {
+    return DialerUtils.getDefaultSharedPreferenceForDeviceProtectedStorageContext(context)
+        .getBoolean(PREFERENCE_CAMERA_ALLOWED_BY_USER, false);
+  }
+
+  public static void setCameraAllowedByUser(@NonNull Context context) {
+    DialerUtils.getDefaultSharedPreferenceForDeviceProtectedStorageContext(context)
+        .edit()
+        .putBoolean(PREFERENCE_CAMERA_ALLOWED_BY_USER, true)
+        .apply();
+  }
+}