Refactor CameraManager.

1. CameraManager should be the only class accessing android.hardware.Camera.
2. For potential future upgrade in Camera HAL and android.hardward.Camera API
   upgrade, CameraManager should be just an interface instead of concrete
   implementation.
3. waitDone() in CameraProxy is removed.
4. ShutterCallback, PreviewCallback, PictureCallback and AF Callbacks are
   wrapped by our own interfaces.

Change-Id: I595da17a1a9c6d476ee805b71c7f45ebb609e465

1 files changed, 37 insertions, 0 deletions

diff --git a/src/com/android/camera/CameraManagerFactory.java b/src/com/android/camera/CameraManagerFactory.java
new file mode 100644
index 000000000..914ebb265
--- /dev/null
+++ b/src/com/android/camera/CameraManagerFactory.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2013 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.camera;
+
+/**
+ * A factory class for {@link CameraManager}.
+ */
+public class CameraManagerFactory {
+
+    private static AndroidCameraManagerImpl sAndroidCameraManager;
+
+    /**
+     * Returns the android camera implementation of {@link CameraManager}.
+     *
+     * @return The {@link CameraManager} to control the camera device.
+     */
+    public static synchronized CameraManager getAndroidCameraManager() {
+        if (sAndroidCameraManager == null) {
+            sAndroidCameraManager = new AndroidCameraManagerImpl();
+        }
+        return sAndroidCameraManager;
+    }
+}