SnapdragonCamera: Use floating components during video record.

During recording, there are only 2 widgets on UI. Directly attaching
them to window manager and making main UI layer fully transparent can
reduce power consumption.

Change-Id: I8c4f4768ab91d50fc72080f0f6d7316ee2e60ef4

7 files changed, 109 insertions, 12 deletions

diff --git a/src/com/android/camera/CameraActivity.java b/src/com/android/camera/CameraActivity.java
index 69a1182b0..a4873b5f8 100644
--- a/src/com/android/camera/CameraActivity.java
+++ b/src/com/android/camera/CameraActivity.java
@@ -674,6 +674,14 @@ public class CameraActivity extends Activity
         }
     }
 
+    public void hideAboveFilmStripControlLayout() {
+        mAboveFilmstripControlLayout.setVisibility(View.INVISIBLE);
+    }
+
+    public void showAboveFilmStripControlLayout() {
+        mAboveFilmstripControlLayout.setVisibility(View.VISIBLE);
+    }
+
     private void hidePanoStitchingProgress() {
         mPanoStitchingPanel.setVisibility(View.GONE);
     }
diff --git a/src/com/android/camera/CameraSettings.java b/src/com/android/camera/CameraSettings.java
index 7aa96d52d..da3dbfda3 100644
--- a/src/com/android/camera/CameraSettings.java
+++ b/src/com/android/camera/CameraSettings.java
@@ -122,6 +122,8 @@ public class CameraSettings {
 
     public static final String KEY_LONGSHOT = "pref_camera_longshot_key";
 
+    public static final String KEY_VIDEO_PARTIAL_UI = "pref_camera_video_partial_ui_key";
+
     private static final String KEY_QC_SUPPORTED_AE_BRACKETING_MODES = "ae-bracket-hdr-values";
     private static final String KEY_QC_SUPPORTED_AF_BRACKETING_MODES = "af-bracket-values";
     private static final String KEY_QC_SUPPORTED_RE_FOCUS_MODES = "re-focus-values";
diff --git a/src/com/android/camera/VideoMenu.java b/src/com/android/camera/VideoMenu.java
index b914f2cf8..8dbc4f2aa 100644
--- a/src/com/android/camera/VideoMenu.java
+++ b/src/com/android/camera/VideoMenu.java
@@ -133,7 +133,8 @@ public class VideoMenu extends MenuController
                 CameraSettings.KEY_POWER_MODE,
                 CameraSettings.KEY_VIDEO_ROTATION,
                 CameraSettings.KEY_VIDEO_CDS_MODE,
-                CameraSettings.KEY_VIDEO_TNR_MODE
+                CameraSettings.KEY_VIDEO_TNR_MODE,
+                CameraSettings.KEY_VIDEO_PARTIAL_UI
         };
         mFrontBackSwitcher.setVisibility(View.INVISIBLE);
         initSwitchItem(CameraSettings.KEY_CAMERA_ID, mFrontBackSwitcher);
diff --git a/src/com/android/camera/VideoModule.java b/src/com/android/camera/VideoModule.java
index 2bd5e1584..72adee0b7 100644
--- a/src/com/android/camera/VideoModule.java
+++ b/src/com/android/camera/VideoModule.java
@@ -2314,6 +2314,11 @@ public class VideoModule implements CameraModule,
             mParameters.setVideoRotation(videoRotation);
         }
 
+        //partial ui setting
+        String partialUi = mPreferences.getString(CameraSettings.KEY_VIDEO_PARTIAL_UI,
+                                   mActivity.getString(R.string.pref_camera_video_partial_ui_default));
+        mUI.setPartialUiRecording(Boolean.valueOf(partialUi));
+
         //set power mode settings
         updatePowerMode();
     }
diff --git a/src/com/android/camera/VideoUI.java b/src/com/android/camera/VideoUI.java
index bac1e3c11..fcd07449a 100644
--- a/src/com/android/camera/VideoUI.java
+++ b/src/com/android/camera/VideoUI.java
@@ -20,6 +20,7 @@ import java.util.List;
 
 import org.codeaurora.snapcam.R;
 
+import android.content.Context;
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.Color;
@@ -27,6 +28,7 @@ import android.graphics.Point;
 import android.graphics.drawable.ColorDrawable;
 import android.hardware.Camera.Parameters;
 import android.util.Log;
+import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.SurfaceHolder;
@@ -35,6 +37,7 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLayoutChangeListener;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.widget.FrameLayout;
 import android.widget.FrameLayout.LayoutParams;
 import android.widget.ImageView;
@@ -101,6 +104,11 @@ public class VideoUI implements PieRenderer.PieListener,
     private RotateLayout mSubMenuLayout;
     private LinearLayout mPreviewMenuLayout;
 
+    private ShutterButton mFloatingShutter;
+    private RotateLayout mFloatingRecordingTimeRect;
+    private View mFloatingTimeLapse;
+    private boolean mPartialUiRecording;
+
     private View mPreviewCover;
     private SurfaceView mSurfaceView = null;
     private int mMaxPreviewWidth = 0;
@@ -885,6 +893,28 @@ public class VideoUI implements PieRenderer.PieListener,
         if (recording) {
             mShutterButton.setImageResource(R.drawable.shutter_button_video_stop);
             hideSwitcher();
+
+            if(mPartialUiRecording) {
+                mActivity.hideAboveFilmStripControlLayout();
+                mCameraControls.setVisibility(View.INVISIBLE);
+                mRenderOverlay.setVisibility(View.INVISIBLE);
+                mFloatingTimeLapse.setVisibility(mIsTimeLapse ? View.VISIBLE : View.GONE);
+
+                ((ViewGroup)mRootView).requestTransparentRegion((View) mSurfaceView.getParent());
+
+                int leftOffset = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, mActivity.getResources().getDisplayMetrics());
+                CameraUtil.addView(mActivity, mRecordingTimeRect, leftOffset, 0,
+                                    Gravity.TOP | Gravity.LEFT,
+                                    WindowManager.LayoutParams.WRAP_CONTENT,
+                                    WindowManager.LayoutParams.WRAP_CONTENT);
+
+                mShutterButton.setVisibility(View.GONE);
+
+                int shutterBottomOffset = (int)mActivity.getResources().getDimension(R.dimen.shutter_offset);
+                CameraUtil.addView(mActivity, mFloatingShutter, 0, shutterBottomOffset, Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL,
+                                    mShutterButton.getMeasuredWidth(), mShutterButton.getMeasuredHeight());
+            }
+
             mRecordingTimeView.setText("");
             mRecordingTimeView.setVisibility(View.VISIBLE);
             mPauseButton.setVisibility(View.VISIBLE);
@@ -893,8 +923,20 @@ public class VideoUI implements PieRenderer.PieListener,
             if (!mController.isVideoCaptureIntent()) {
                 showSwitcher();
             }
-            mRecordingTimeView.setVisibility(View.GONE);
-            mPauseButton.setVisibility(View.GONE);
+
+            if(mPartialUiRecording) {
+                mShutterButton.setVisibility(View.VISIBLE);
+                WindowManager wm = (WindowManager) mActivity.getSystemService(Context.WINDOW_SERVICE);
+                wm.removeView(mRecordingTimeRect);
+                wm.removeView(mFloatingShutter);
+
+                mActivity.showAboveFilmStripControlLayout();
+                mCameraControls.setVisibility(View.VISIBLE);
+                mRenderOverlay.setVisibility(View.VISIBLE);
+            } else {
+                mRecordingTimeView.setVisibility(View.GONE);
+                mPauseButton.setVisibility(View.GONE);
+            }
         }
     }
 
@@ -979,7 +1021,10 @@ public class VideoUI implements PieRenderer.PieListener,
     }
 
     public void clickShutter() {
-        mShutterButton.performClick();
+        if(mRecordingStarted && mPartialUiRecording)
+            mFloatingShutter.performClick();
+        else
+            mShutterButton.performClick();
     }
 
     public void pressShutter(boolean pressed) {
@@ -1132,4 +1177,34 @@ public class VideoUI implements PieRenderer.PieListener,
     public void adjustOrientation() {
         setOrientation(mOrientation, false);
     }
+
+    public void setPartialUiRecording(boolean enable) {
+        mPartialUiRecording = enable;
+
+        if(mPartialUiRecording) {
+            if(mFloatingShutter == null) {
+                mFloatingShutter = (ShutterButton)View.inflate(mActivity, R.layout.floating_shutter_icon, null);
+                mFloatingShutter.setOnShutterButtonListener(mController);
+            }
+
+            if(mFloatingRecordingTimeRect == null) {
+                mFloatingRecordingTimeRect = new RotateLayout(mActivity, null);
+                mFloatingRecordingTimeRect.addView(View.inflate(mActivity, R.layout.floating_recording_time, null));
+                mFloatingTimeLapse = mFloatingRecordingTimeRect.findViewById(R.id.time_lapse_label);
+            }
+
+            mRootView.findViewById(R.id.recording_time_rect).setVisibility(View.GONE);
+            mRecordingTimeRect = mFloatingRecordingTimeRect;
+
+            mRecordingTimeView = (TextView) mRecordingTimeRect.findViewById(R.id.recording_time);
+            mPauseButton = (PauseButton) mRecordingTimeRect.findViewById(R.id.video_pause);
+            mPauseButton.setOnPauseButtonListener(this);
+        } else {
+            mRecordingTimeRect = (RotateLayout) mRootView.findViewById(R.id.recording_time_rect);
+            mRecordingTimeRect.setVisibility(View.VISIBLE);
+
+            mRecordingTimeView = (TextView) mRootView.findViewById(R.id.recording_time);
+            initializePauseButton();
+        }
+    }
 }
diff --git a/src/com/android/camera/ui/FilmStripView.java b/src/com/android/camera/ui/FilmStripView.java
index 01469baeb..d254acff3 100644
--- a/src/com/android/camera/ui/FilmStripView.java
+++ b/src/com/android/camera/ui/FilmStripView.java
@@ -685,7 +685,6 @@ public class FilmStripView extends ViewGroup implements BottomControlsListener {
     }
 
     private void init(CameraActivity cameraActivity) {
-        setWillNotDraw(false);
         mActivity = cameraActivity;
         mScale = 1.0f;
         mDataIdOnUserScrolling = 0;
@@ -1423,13 +1422,6 @@ public class FilmStripView extends ViewGroup implements BottomControlsListener {
     }
 
     @Override
-    public void onDraw(Canvas c) {
-        // TODO: remove layoutViewItems() here.
-        layoutViewItems(false);
-        super.onDraw(c);
-    }
-
-    @Override
     protected void onLayout(boolean changed, int l, int t, int r, int b) {
         mDrawArea.left = l;
         mDrawArea.top = t;
diff --git a/src/com/android/camera/util/CameraUtil.java b/src/com/android/camera/util/CameraUtil.java
index 5fb00ca65..daa190f85 100644
--- a/src/com/android/camera/util/CameraUtil.java
+++ b/src/com/android/camera/util/CameraUtil.java
@@ -28,6 +28,7 @@ import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Matrix;
+import android.graphics.PixelFormat;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.RectF;
@@ -60,6 +61,7 @@ import com.android.camera.CameraManager;
 import com.android.camera.CameraSettings;
 import com.android.camera.ui.RotateTextToast;
 import com.android.camera.util.IntentHelper;
+
 import org.codeaurora.snapcam.R;
 
 import java.io.Closeable;
@@ -1164,4 +1166,16 @@ public class CameraUtil {
         return retRatio;
     }
 
+    public static WindowManager.LayoutParams addView(Context context, View v, int x, int y,
+            int gravity, int width, int height) {
+        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
+        WindowManager.LayoutParams params = new WindowManager.LayoutParams(width, height,
+                WindowManager.LayoutParams.TYPE_APPLICATION_PANEL,
+                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT);
+        params.gravity = gravity;
+        params.x = x;
+        params.y = y;
+        wm.addView(v, params);
+        return params;
+    }
 }