1 files changed, 46 insertions, 0 deletions
diff --git a/java/com/android/incallui/videotech/utils/SessionModificationState.java b/java/com/android/incallui/videotech/utils/SessionModificationState.java
new file mode 100644
index 000000000..24b0ca369
--- /dev/null
+++ b/java/com/android/incallui/videotech/utils/SessionModificationState.java
@@ -0,0 +1,46 @@
+/*
+ * 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.utils;
+
+import android.support.annotation.IntDef;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Defines different states of session modify requests, which are used to upgrade to video, or
+ * downgrade to audio.
+ */
+@Retention(RetentionPolicy.SOURCE)
+@IntDef({
+  SessionModificationState.NO_REQUEST,
+  SessionModificationState.WAITING_FOR_UPGRADE_TO_VIDEO_RESPONSE,
+  SessionModificationState.REQUEST_FAILED,
+  SessionModificationState.RECEIVED_UPGRADE_TO_VIDEO_REQUEST,
+  SessionModificationState.UPGRADE_TO_VIDEO_REQUEST_TIMED_OUT,
+  SessionModificationState.UPGRADE_TO_VIDEO_REQUEST_FAILED,
+  SessionModificationState.REQUEST_REJECTED,
+  SessionModificationState.WAITING_FOR_RESPONSE
+})
+public @interface SessionModificationState {
+  int NO_REQUEST = 0;
+  int WAITING_FOR_UPGRADE_TO_VIDEO_RESPONSE = 1;
+  int REQUEST_FAILED = 2;
+  int RECEIVED_UPGRADE_TO_VIDEO_REQUEST = 3;
+  int UPGRADE_TO_VIDEO_REQUEST_TIMED_OUT = 4;
+  int UPGRADE_TO_VIDEO_REQUEST_FAILED = 5;
+  int REQUEST_REJECTED = 6;
+  int WAITING_FOR_RESPONSE = 7;
+}