Fix camera mute (#143)

* mute camera in case if it's supported and required

* applyPlaySound properly

* fix compilation error

* fix comments

* fix comments 2

* add integration test for setPlaySounds

* pass mPlaySoundsTask

cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java

@@ -3,6 +3,8 @@ package com.otaliastudios.cameraview;
 
 import android.graphics.Bitmap;
 import android.graphics.PointF;
+import android.hardware.Camera;
+import android.os.Build;
 import android.support.test.filters.MediumTest;
 import android.support.test.rule.ActivityTestRule;
 import android.support.test.runner.AndroidJUnit4;
@@ -364,6 +366,25 @@ public class IntegrationTest extends BaseTest {
         // This also ensures there are no crashes when attaching it to camera parameters.
     }
 
+    @Test
+    public void testSetPlaySounds() {
+        controller.mPlaySoundsTask.listen();
+        boolean oldValue = camera.getPlaySounds();
+        boolean newValue = !oldValue;
+        camera.setPlaySounds(newValue);
+        controller.mPlaySoundsTask.await(300);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            Camera.CameraInfo info = new Camera.CameraInfo();
+            Camera.getCameraInfo(camera.getCameraId(), info);
+            if (info.canDisableShutterSound) {
+                assertEquals(newValue, camera.getPlaySounds());
+            }
+        } else {
+            assertEquals(oldValue, camera.getPlaySounds());
+        }
+    }
+
     //endregion
 
     //region testSetVideoQuality

cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java

@@ -129,4 +129,9 @@ public class MockCameraController extends CameraController {
     void setVideoMaxSize(long videoMaxSizeInBytes) {
 
     }
+
+    @Override
+    void setPlaySounds(boolean playSounds) {
+
+    }
 }

cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java

@@ -1,5 +1,6 @@
 package com.otaliastudios.cameraview;
 
+import android.annotation.TargetApi;
 import android.graphics.ImageFormat;
 import android.graphics.PointF;
 import android.graphics.Rect;
@@ -9,6 +10,7 @@ import android.hardware.Camera;
 import android.location.Location;
 import android.media.CamcorderProfile;
 import android.media.MediaRecorder;
+import android.os.Build;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.WorkerThread;
@@ -178,6 +180,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
             mergeLocation(params, null);
             mergeWhiteBalance(params, WhiteBalance.DEFAULT);
             mergeHdr(params, Hdr.DEFAULT);
+            mergePlaySound(mPlaySounds);
             params.setRecordingHint(mSessionType == SessionType.VIDEO);
             mCamera.setParameters(params);
 
@@ -366,6 +369,23 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
         return false;
     }
 
+    @TargetApi(17)
+    private boolean mergePlaySound(boolean oldPlaySound) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            Camera.CameraInfo info = new Camera.CameraInfo();
+            Camera.getCameraInfo(mCameraId, info);
+            if (info.canDisableShutterSound) {
+                mCamera.enableShutterSound(mPlaySounds);
+                return true;
+            }
+        }
+        if (mPlaySounds) {
+            return true;
+        }
+        mPlaySounds = oldPlaySound;
+        return false;
+    }
+
 
     @Override
     void setAudio(Audio audio) {
@@ -572,15 +592,19 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
     private boolean isCameraAvailable() {
         switch (mState) {
             // If we are stopped, don't.
-            case STATE_STOPPED: return false;
+            case STATE_STOPPED:
+                return false;
             // If we are going to be closed, don't act on camera.
             // Even if mCamera != null, it might have been released.
-            case STATE_STOPPING: return false;
+            case STATE_STOPPING:
+                return false;
             // If we are started, mCamera should never be null.
-            case STATE_STARTED: return true;
+            case STATE_STARTED:
+                return true;
             // If we are starting, theoretically we could act.
             // Just check that camera is available.
-            case STATE_STARTING: return mCamera != null;
+            case STATE_STARTING:
+                return mCamera != null;
         }
         return false;
     }
@@ -858,6 +882,18 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
         mVideoMaxSizeInBytes = videoMaxSizeInBytes;
     }
 
+    @Override
+    void setPlaySounds(boolean playSounds) {
+        final boolean old = mPlaySounds;
+        mPlaySounds = playSounds;
+        schedule(mPlaySoundsTask, true, new Runnable() {
+            @Override
+            public void run() {
+                mergePlaySound(old);
+            }
+        });
+    }
+
     // -----------------
     // Additional helper info
 }

cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java

@@ -119,4 +119,9 @@ class Camera2 extends CameraController {
     void setVideoMaxSize(long videoMaxSizeInBytes) {
 
     }
+
+    @Override
+    void setPlaySounds(boolean playSounds) {
+
+    }
 }

cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java

@@ -45,6 +45,7 @@ abstract class CameraController implements
     protected Audio mAudio;
     protected float mZoomValue;
     protected float mExposureCorrectionValue;
+    protected boolean mPlaySounds;
 
     protected int mCameraId;
     protected ExtraProperties mExtraProperties;
@@ -77,6 +78,7 @@ abstract class CameraController implements
     Task<Void> mLocationTask = new Task<>();
     Task<Void> mVideoQualityTask = new Task<>();
     Task<Void> mStartVideoTask = new Task<>();
+    Task<Void> mPlaySoundsTask = new Task<>();
 
     CameraController(CameraView.CameraCallbacks callback) {
         mCameraCallbacks = callback;
@@ -320,6 +322,8 @@ abstract class CameraController implements
 
     abstract void setVideoMaxSize(long videoMaxSizeInBytes);
 
+    abstract void setPlaySounds(boolean playSounds);
+
     //endregion
 
     //region final getters

cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java

@@ -1361,6 +1361,7 @@ public class CameraView extends FrameLayout {
      */
     public void setPlaySounds(boolean playSounds) {
         mPlaySounds = playSounds && Build.VERSION.SDK_INT >= 16;
+        mCameraController.setPlaySounds(playSounds);
     }
 
     /**
@@ -1705,5 +1706,10 @@ public class CameraView extends FrameLayout {
         return mCameraController.getFlash();
     }
 
+
+    /* for tests */int getCameraId(){
+        return mCameraController.mCameraId;
+    }
+
     //endregion
 }