Revert "Merge "Remove long pressing shutter triggers autocous." into …

…ics-mr0"

This reverts commit 4d55f6c, reversing
changes made to 174b8b7.

src/com/android/camera/Camera.java

@@ -82,7 +82,7 @@ public class Camera extends ActivityBase implements FocusManager.Listener,
         View.OnTouchListener, ShutterButton.OnShutterButtonListener,
         SurfaceHolder.Callback, ModePicker.OnModeChangeListener,
         FaceDetectionListener, CameraPreference.OnPreferenceChangedListener,
-        LocationManager.Listener {
+        LocationManager.Listener, ShutterButton.OnShutterButtonLongPressListener {
 
     private static final String TAG = "camera";
 
@@ -370,6 +370,7 @@ private void initializeFirstTime() {
         // Initialize shutter button.
         mShutterButton = (ShutterButton) findViewById(R.id.shutter_button);
         mShutterButton.setOnShutterButtonListener(this);
+        mShutterButton.setOnShutterButtonLongPressListener(this);
         mShutterButton.setVisibility(View.VISIBLE);
 
         // Initialize focus UI.
@@ -1392,6 +1393,15 @@ public void onShutterButtonClick() {
         mFocusManager.doSnap();
     }
 
+    @Override
+    public void onShutterButtonLongPressed() {
+        if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS
+                || mCameraDevice == null || mPicturesRemaining <= 0) return;
+
+        Log.v(TAG, "onShutterButtonLongPressed");
+        mFocusManager.shutterLongPressed();
+    }
+
     private OnScreenHint mStorageHint;
 
     private void updateStorageHint() {

src/com/android/camera/FocusManager.java

@@ -56,6 +56,7 @@ public class FocusManager {
 
     private boolean mInitialized;
     private boolean mFocusAreaSupported;
+    private boolean mInLongPress;
     private boolean mLockAeAwbNeeded;
     private boolean mAeAwbLock;
     private Matrix mMatrix;
@@ -173,6 +174,22 @@ public void onShutterUp() {
         }
     }
 
+    public void shutterLongPressed() {
+        if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mFocusMode)
+                && isSupported(Parameters.FOCUS_MODE_AUTO, mParameters.getSupportedFocusModes())) {
+            if (mState == STATE_IDLE || mState == STATE_FOCUSING_SNAP_ON_FINISH) {
+                Log.e(TAG, "Invalid focus state=" + mState);
+            }
+            mInLongPress = true;
+            // Cancel any outstanding Auto focus requests. The auto focus mode
+            // will be changed from CAF to auto in cancelAutoFocus.
+            onShutterUp();
+            // Call Autofocus
+            onShutterDown();
+            mInLongPress = false;
+        }
+    }
+
     public void doSnap() {
         if (!mInitialized) return;
 
@@ -362,7 +379,11 @@ public void releaseSoundPlayer() {
     public String getFocusMode() {
         if (mOverrideFocusMode != null) return mOverrideFocusMode;
 
-        if (mFocusAreaSupported && mFocusArea != null) {
+        if (mInLongPress) {
+            // Users long-press the shutter button in CAF. Change it to auto
+            // mode, so it will do a full scan.
+            mFocusMode = Parameters.FOCUS_MODE_AUTO;
+        } else if (mFocusAreaSupported && mFocusArea != null) {
             // Always use autofocus in tap-to-focus.
             mFocusMode = Parameters.FOCUS_MODE_AUTO;
         } else {

src/com/android/camera/ShutterButton.java

@@ -26,7 +26,7 @@
  * It's currently an {@code ImageView} that can call a delegate when the
  * pressed state changes.
  */
-public class ShutterButton extends ImageView {
+public class ShutterButton extends ImageView implements View.OnLongClickListener {
     /**
      * A callback to be invoked when a ShutterButton's pressed state changes.
      */
@@ -40,17 +40,30 @@ public interface OnShutterButtonListener {
         void onShutterButtonClick();
     }
 
+    /**
+     * A callback to be invoked when a ShutterButton's long pressed.
+     */
+    public interface OnShutterButtonLongPressListener {
+        void onShutterButtonLongPressed();
+    }
+
     private OnShutterButtonListener mListener;
+    private OnShutterButtonLongPressListener mLongPressListener;
     private boolean mOldPressed;
 
     public ShutterButton(Context context, AttributeSet attrs) {
         super(context, attrs);
+        setOnLongClickListener(this);
     }
 
     public void setOnShutterButtonListener(OnShutterButtonListener listener) {
         mListener = listener;
     }
 
+    public void setOnShutterButtonLongPressListener(OnShutterButtonLongPressListener listener) {
+        mLongPressListener = listener;
+    }
+
     /**
      * Hook into the drawable state changing to get changes to isPressed -- the
      * onPressed listener doesn't always get called when the pressed state
@@ -109,4 +122,12 @@ public boolean performClick() {
         }
         return result;
     }
+
+    @Override
+    public boolean onLongClick(View v) {
+        if (mLongPressListener != null) {
+            mLongPressListener.onShutterButtonLongPressed();
+        }
+        return false;
+    }
 }