1 files changed, 99 insertions, 0 deletions
diff --git a/camera2/utils/src/com/android/ex/camera2/utils/Camera2CaptureCallbackForwarder.java b/camera2/utils/src/com/android/ex/camera2/utils/Camera2CaptureCallbackForwarder.java
new file mode 100644
index 0000000..e6988b5
--- /dev/null
+++ b/camera2/utils/src/com/android/ex/camera2/utils/Camera2CaptureCallbackForwarder.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2014 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.ex.camera2.utils;
+
+import android.hardware.camera2.CameraCaptureSession;
+import android.hardware.camera2.CameraCaptureSession.CaptureCallback;
+import android.hardware.camera2.CaptureFailure;
+import android.hardware.camera2.CaptureRequest;
+import android.hardware.camera2.CaptureResult;
+import android.hardware.camera2.TotalCaptureResult;
+import android.os.Handler;
+
+/**
+ * Proxy that forwards all updates to another {@link CaptureCallback}, invoking
+ * its callbacks on a separate {@link Handler}.
+ */
+public class Camera2CaptureCallbackForwarder extends CaptureCallback {
+    private CaptureCallback mListener;
+    private Handler mHandler;
+
+    public Camera2CaptureCallbackForwarder(CaptureCallback listener, Handler handler) {
+        mListener = listener;
+        mHandler = handler;
+    }
+
+    @Override
+    public void onCaptureCompleted(final CameraCaptureSession session, final CaptureRequest request,
+                                   final TotalCaptureResult result) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureCompleted(session, request, result);
+            }});
+    }
+
+    @Override
+    public void onCaptureFailed(final CameraCaptureSession session, final CaptureRequest request,
+                                final CaptureFailure failure) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureFailed(session, request, failure);
+            }});
+    }
+
+    @Override
+    public void onCaptureProgressed(final CameraCaptureSession session,
+                                    final CaptureRequest request,
+                                    final CaptureResult partialResult) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureProgressed(session, request, partialResult);
+            }});
+    }
+
+    @Override
+    public void onCaptureSequenceAborted(final CameraCaptureSession session, final int sequenceId) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureSequenceAborted(session, sequenceId);
+            }});
+    }
+
+    @Override
+    public void onCaptureSequenceCompleted(final CameraCaptureSession session, final int sequenceId,
+                                           final long frameNumber) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
+            }});
+    }
+
+    @Override
+    public void onCaptureStarted(final CameraCaptureSession session, final CaptureRequest request,
+                                 final long timestamp, final long frameNumber) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mListener.onCaptureStarted(session, request, timestamp, frameNumber);
+            }});
+    }
+}