extend error handling for the CameraView

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

@@ -557,9 +557,10 @@ public class CameraView extends FrameLayout {
                         return;
                     }
                 }
-                LOG.e("Permission error:", "When the session type is set to video,",
-                        "the RECORD_AUDIO permission should be added to the app manifest file.");
-                throw new IllegalStateException(CameraLogger.lastMessage);
+                CameraException cameraException = new CameraUnavailableException("Permission " +
+                        "error: When the session type is set to video, the RECORD_AUDIO " +
+                        "permission should be added to the app manifest file.");
+                mCameraCallbacks.onError(cameraException);
             } catch (PackageManager.NameNotFoundException e) {
                 // Not possible.
             }
@@ -1002,7 +1003,11 @@ public class CameraView extends FrameLayout {
      */
     public void setJpegQuality(int jpegQuality) {
         if (jpegQuality <= 0 || jpegQuality > 100) {
-            throw new IllegalArgumentException("JPEG quality should be > 0 and <= 100");
+            IllegalArgumentException illegalArgumentException = new
+                    IllegalArgumentException("JPEG quality should be > 0 and <= 100");
+            CameraException cameraException = new CameraConfigurationFailedException("Could not" +
+                    " set JpegQuality", illegalArgumentException);
+            mCameraCallbacks.onError(cameraException);
         }
         mJpegQuality = jpegQuality;
     }
@@ -1165,15 +1170,16 @@ public class CameraView extends FrameLayout {
      * so callers should ensure they have appropriate permissions to write to the file.
      * Recording will be automatically stopped after durationMillis, unless
      * {@link #stopCapturingVideo()} is not called meanwhile.
+     * Triggers error handler, if durationMillis is less than 500 milliseconds.
      *
      * @param file a file where the video will be saved
      * @param durationMillis video max duration
-     *
-     * @throws IllegalArgumentException if durationMillis is less than 500 milliseconds
      */
     public void startCapturingVideo(File file, long durationMillis) {
         if (durationMillis < 500) {
-            throw new IllegalArgumentException("Video duration can't be < 500 milliseconds");
+            CameraException cameraException = new CapturingVideoFailedException("Video duration" +
+                    " can't be < 500 milliseconds");
+            mCameraCallbacks.onError(cameraException);
         }
         startCapturingVideo(file);
         mUiHandler.postDelayed(new Runnable() {