Snap: Add options to restart preview onPictureTaken

Author: codeworkx <codeworkx@cyanogenmod.org>
Date:   Mon Jan 16 00:10:40 2006 +0100

    Snap: Add options to restart preview onPictureTaken

    Change-Id: I7ce9d6f2323e367743e6d4c9662b846d3052f2a4

Author: LuK1337 <priv.luk@gmail.com>
Date:   Mon Jan 11 17:40:58 2016 +0100

    Move mApplicationContext to init()

    Fixes following NPE:
    01-11 17:36:42.607  4329  4391 E AndroidRuntime: FATAL EXCEPTION: Thread-235
    01-11 17:36:42.607  4329  4391 E AndroidRuntime: Process: org.cyanogenmod.snap, PID: 4329
    01-11 17:36:42.607  4329  4391 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference
    01-11 17:36:42.607  4329  4391 E AndroidRuntime:        at com.android.camera.PhotoModule.updateCameraParametersPreference(PhotoModule.java:3492)
    01-11 17:36:42.607  4329  4391 E AndroidRuntime:        at com.android.camera.PhotoModule.setCameraParameters(PhotoModule.java:3714)
    01-11 17:36:42.607  4329  4391 E AndroidRuntime:        at com.android.camera.PhotoModule.startPreview(PhotoModule.java:2715)
    01-11 17:36:42.607  4329  4391 E AndroidRuntime:        at com.android.camera.PhotoModule.-wrap14(PhotoModule.java)
    01-11 17:36:42.607  4329  4391 E AndroidRuntime:        at com.android.camera.PhotoModule$OpenCameraThread.run(PhotoModule.java:265)

    Change-Id: I6ca0dfe402cab46dd7b6f102921062f3c7ec8d43

Author: codeworkx <codeworkx@cyanogenmod.org>
Date:   Fri Jan 22 17:17:53 2016 +0100

    Snap: Do not restart preview during longshots

    Change-Id: I6ad439dc0be7c6e0d13ac7c22aacdc0ad559d051

Author: LuK1337 <priv.luk@gmail.com>
Date:   Sun Mar 19 10:43:33 2017 +0100

    Snap: Add overlay for restarting camera preview for additional cameras

    Change-Id: I95eb7237b101b73d66fe231a11d0c8d5156bfe47

Change-Id: I49312aef5331bf549e38a0534b95f76a0b8bb8da

2 files changed, 33 insertions, 1 deletions

diff --git a/res/values/config.xml b/res/values/config.xml
index b6f39052a..6ac6ecea1 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -28,6 +28,15 @@
          of the fullscreen pano preview. -->
     <bool name="enable_warped_pano_preview">true</bool>
 
+    <!-- Restart preview for back camera onPictureTaken -->
+    <bool name="back_camera_restart_preview_onPictureTaken">false</bool>
+
+    <!-- Restart preview for front camera onPictureTaken -->
+    <bool name="front_camera_restart_preview_onPictureTaken">false</bool>
+
+    <!-- Restart preview for additional camera onPictureTaken -->
+    <bool name="additional_camera_restart_preview_onPictureTaken">false</bool>
+
     <!-- Set's manufacturer specific parameters on startup.
          Example: lge-camera=1;cam-mode=0 -->
     <string name="manufacturer_key_values"></string>
diff --git a/src/com/android/camera/PhotoModule.java b/src/com/android/camera/PhotoModule.java
index b82490927..6770ed7cc 100755
--- a/src/com/android/camera/PhotoModule.java
+++ b/src/com/android/camera/PhotoModule.java
@@ -68,6 +68,7 @@ import android.widget.SeekBar.OnSeekBarChangeListener;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import com.android.camera.app.CameraApp;
 import com.android.camera.CameraManager.CameraAFCallback;
 import com.android.camera.CameraManager.CameraAFMoveCallback;
 import com.android.camera.CameraManager.CameraPictureCallback;
@@ -256,6 +257,8 @@ public class PhotoModule
     private byte[] mLastJpegData;
     private int mLastJpegOrientation = 0;
 
+    private static Context mApplicationContext;
+
     private Runnable mDoSnapRunnable = new Runnable() {
         @Override
         public void run() {
@@ -570,6 +573,7 @@ public class PhotoModule
         mCameraId = getPreferredCameraId(mPreferences);
 
         mContentResolver = mActivity.getContentResolver();
+        mApplicationContext = CameraApp.getContext();
 
         // Surface texture is from camera screen nail and startPreview needs it.
         // This must be done before startPreview.
@@ -1377,6 +1381,26 @@ public class PhotoModule
                     && (mCameraState != LONGSHOT)
                     && (mSnapshotMode != CameraInfoWrapper.CAMERA_SUPPORT_MODE_ZSL)
                     && (mReceivedSnapNum == mBurstSnapNum);
+
+            CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
+
+            final boolean isAuxCamera = info.facing > CameraInfo.CAMERA_FACING_FRONT;
+            final boolean isBackCamera = info.facing == CameraInfo.CAMERA_FACING_BACK;
+            final boolean isFrontCamera = info.facing == CameraInfo.CAMERA_FACING_FRONT;
+            final boolean auxCameraRestartPreviewOnPictureTaken = mApplicationContext
+                    .getResources().getBoolean(R.bool.additional_camera_restart_preview_onPictureTaken);
+            final boolean backCameraRestartPreviewOnPictureTaken = mApplicationContext
+                    .getResources().getBoolean(R.bool.back_camera_restart_preview_onPictureTaken);
+            final boolean frontCameraRestartPreviewOnPictureTaken = mApplicationContext
+                    .getResources().getBoolean(R.bool.front_camera_restart_preview_onPictureTaken);
+
+            if ((isAuxCamera && auxCameraRestartPreviewOnPictureTaken ||
+                    isBackCamera && backCameraRestartPreviewOnPictureTaken ||
+                    isFrontCamera && frontCameraRestartPreviewOnPictureTaken) &&
+                    mCameraState != LONGSHOT) {
+                needRestartPreview = true;
+            }
+
             if (needRestartPreview) {
                 setupPreview();
                 if (CameraUtil.FOCUS_MODE_CONTINUOUS_PICTURE.equals(
@@ -1417,7 +1441,6 @@ public class PhotoModule
                             .findPreference(CameraSettings.KEY_SELFIE_MIRROR);
                     if (selfieMirrorPref != null && selfieMirrorPref.getValue() != null &&
                             selfieMirrorPref.getValue().equalsIgnoreCase("enable")) {
-                        CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
                         jpegData = flipJpeg(jpegData, info.orientation, orientation);
                         jpegData = addExifTags(jpegData, orientation);
                     }