| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.stackdivider; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ValueAnimator; |
| import android.animation.ValueAnimator.AnimatorUpdateListener; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.graphics.Rect; |
| import android.graphics.Region.Op; |
| import android.hardware.display.DisplayManager; |
| import android.util.AttributeSet; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| import android.view.MotionEvent; |
| import android.view.PointerIcon; |
| import android.view.VelocityTracker; |
| import android.view.View; |
| import android.view.View.OnTouchListener; |
| import android.view.ViewTreeObserver.InternalInsetsInfo; |
| import android.view.ViewTreeObserver.OnComputeInternalInsetsListener; |
| import android.view.WindowManager; |
| import android.view.animation.AnimationUtils; |
| import android.view.animation.Interpolator; |
| import android.view.animation.PathInterpolator; |
| import android.widget.FrameLayout; |
| import android.widget.ImageButton; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.stackdivider.DividerSnapAlgorithm.SnapTarget; |
| import com.android.systemui.statusbar.FlingAnimationUtils; |
| |
| import static android.view.PointerIcon.STYLE_HORIZONTAL_DOUBLE_ARROW; |
| import static android.view.PointerIcon.STYLE_VERTICAL_DOUBLE_ARROW; |
| |
| /** |
| * Docked stack divider. |
| */ |
| public class DividerView extends FrameLayout implements OnTouchListener, |
| OnComputeInternalInsetsListener { |
| |
| private static final String TAG = "DividerView"; |
| |
| private ImageButton mHandle; |
| private View mBackground; |
| private int mStartX; |
| private int mStartY; |
| private int mStartPosition; |
| private int mDockSide; |
| private final int[] mTempInt2 = new int[2]; |
| |
| private int mDividerInsets; |
| private int mDisplayWidth; |
| private int mDisplayHeight; |
| private int mDividerWindowWidth; |
| private int mDividerSize; |
| private int mTouchElevation; |
| |
| private final Rect mTmpRect = new Rect(); |
| private final Rect mLastResizeRect = new Rect(); |
| private final WindowManagerProxy mWindowManagerProxy = WindowManagerProxy.getInstance(); |
| private Interpolator mFastOutSlowInInterpolator; |
| private final Interpolator mTouchResponseInterpolator = |
| new PathInterpolator(0.3f, 0f, 0.1f, 1f); |
| private DividerWindowManager mWindowManager; |
| private VelocityTracker mVelocityTracker; |
| private FlingAnimationUtils mFlingAnimationUtils; |
| |
| public DividerView(Context context) { |
| super(context); |
| } |
| |
| public DividerView(Context context, @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public DividerView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public DividerView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mHandle = (ImageButton) findViewById(R.id.docked_divider_handle); |
| mBackground = findViewById(R.id.docked_divider_background); |
| mHandle.setOnTouchListener(this); |
| mDividerWindowWidth = getResources().getDimensionPixelSize( |
| com.android.internal.R.dimen.docked_stack_divider_thickness); |
| mDividerInsets = getResources().getDimensionPixelSize( |
| com.android.internal.R.dimen.docked_stack_divider_insets); |
| mDividerSize = mDividerWindowWidth - 2 * mDividerInsets; |
| mTouchElevation = getResources().getDimensionPixelSize( |
| R.dimen.docked_stack_divider_lift_elevation); |
| mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator(getContext(), |
| android.R.interpolator.fast_out_slow_in); |
| mFlingAnimationUtils = new FlingAnimationUtils(getContext(), 0.3f); |
| updateDisplayInfo(); |
| boolean landscape = getResources().getConfiguration().orientation |
| == Configuration.ORIENTATION_LANDSCAPE; |
| mHandle.setPointerIcon(PointerIcon.getSystemIcon(getContext(), |
| landscape ? STYLE_HORIZONTAL_DOUBLE_ARROW : STYLE_VERTICAL_DOUBLE_ARROW)); |
| getViewTreeObserver().addOnComputeInternalInsetsListener(this); |
| } |
| |
| public void setWindowManager(DividerWindowManager windowManager) { |
| mWindowManager = windowManager; |
| } |
| |
| public WindowManagerProxy getWindowManagerProxy() { |
| return mWindowManagerProxy; |
| } |
| |
| public boolean startDragging() { |
| mDockSide = mWindowManagerProxy.getDockSide(); |
| if (mDockSide != WindowManager.DOCKED_INVALID) { |
| mWindowManagerProxy.setResizing(true); |
| mWindowManager.setSlippery(false); |
| liftBackground(); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| public void stopDragging(int position, float velocity) { |
| fling(position, velocity); |
| mWindowManager.setSlippery(true); |
| releaseBackground(); |
| } |
| |
| @Override |
| public boolean onTouch(View v, MotionEvent event) { |
| convertToScreenCoordinates(event); |
| final int action = event.getAction() & MotionEvent.ACTION_MASK; |
| switch (action) { |
| case MotionEvent.ACTION_DOWN: |
| mVelocityTracker = VelocityTracker.obtain(); |
| mVelocityTracker.addMovement(event); |
| mStartX = (int) event.getX(); |
| mStartY = (int) event.getY(); |
| getLocationOnScreen(mTempInt2); |
| boolean result = startDragging(); |
| if (isHorizontalDivision()) { |
| mStartPosition = mTempInt2[1] + mDividerInsets; |
| } else { |
| mStartPosition = mTempInt2[0] + mDividerInsets; |
| } |
| return result; |
| case MotionEvent.ACTION_MOVE: |
| mVelocityTracker.addMovement(event); |
| int x = (int) event.getX(); |
| int y = (int) event.getY(); |
| if (mDockSide != WindowManager.DOCKED_INVALID) { |
| resizeStack(calculatePosition(x, y)); |
| } |
| break; |
| case MotionEvent.ACTION_UP: |
| case MotionEvent.ACTION_CANCEL: |
| mVelocityTracker.addMovement(event); |
| |
| x = (int) event.getRawX(); |
| y = (int) event.getRawY(); |
| |
| mVelocityTracker.computeCurrentVelocity(1000); |
| int position = calculatePosition(x, y); |
| stopDragging(position, isHorizontalDivision() ? mVelocityTracker.getYVelocity() |
| : mVelocityTracker.getXVelocity()); |
| break; |
| } |
| return true; |
| } |
| |
| private void convertToScreenCoordinates(MotionEvent event) { |
| event.setLocation(event.getRawX(), event.getRawY()); |
| } |
| |
| private void fling(int position, float velocity) { |
| final SnapTarget snapTarget = new DividerSnapAlgorithm(getContext(), mFlingAnimationUtils, |
| mDividerSize, isHorizontalDivision()).calculateSnapTarget(position, velocity); |
| |
| ValueAnimator anim = ValueAnimator.ofInt(position, snapTarget.position); |
| anim.addUpdateListener(new AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| resizeStack((Integer) animation.getAnimatedValue()); |
| } |
| }); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| commitSnapFlags(snapTarget); |
| mWindowManagerProxy.setResizing(false); |
| mDockSide = WindowManager.DOCKED_INVALID; |
| } |
| }); |
| mFlingAnimationUtils.apply(anim, position, snapTarget.position, velocity); |
| anim.start(); |
| } |
| |
| private void commitSnapFlags(SnapTarget target) { |
| if (target.flag == SnapTarget.FLAG_NONE) { |
| return; |
| } |
| boolean dismissOrMaximize; |
| if (target.flag == SnapTarget.FLAG_DISMISS_START) { |
| dismissOrMaximize = mDockSide == WindowManager.DOCKED_LEFT |
| || mDockSide == WindowManager.DOCKED_TOP; |
| } else { |
| dismissOrMaximize = mDockSide == WindowManager.DOCKED_RIGHT |
| || mDockSide == WindowManager.DOCKED_BOTTOM; |
| } |
| if (dismissOrMaximize) { |
| mWindowManagerProxy.dismissDockedStack(); |
| } else { |
| mWindowManagerProxy.maximizeDockedStack(); |
| } |
| } |
| |
| private void liftBackground() { |
| if (isHorizontalDivision()) { |
| mBackground.animate().scaleY(1.4f); |
| } else { |
| mBackground.animate().scaleX(1.4f); |
| } |
| mBackground.animate() |
| .setInterpolator(mTouchResponseInterpolator) |
| .setDuration(150) |
| .translationZ(mTouchElevation); |
| |
| // Lift handle as well so it doesn't get behind the background, even though it doesn't |
| // cast shadow. |
| mHandle.animate() |
| .setInterpolator(mTouchResponseInterpolator) |
| .setDuration(150) |
| .translationZ(mTouchElevation); |
| } |
| |
| private void releaseBackground() { |
| mBackground.animate() |
| .setInterpolator(mFastOutSlowInInterpolator) |
| .setDuration(200) |
| .translationZ(0) |
| .scaleX(1f) |
| .scaleY(1f); |
| mHandle.animate() |
| .setInterpolator(mFastOutSlowInInterpolator) |
| .setDuration(200) |
| .translationZ(0); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| updateDisplayInfo(); |
| } |
| |
| private void updateDisplayInfo() { |
| final DisplayManager displayManager = |
| (DisplayManager) mContext.getSystemService(Context.DISPLAY_SERVICE); |
| Display display = displayManager.getDisplay(Display.DEFAULT_DISPLAY); |
| final DisplayInfo info = new DisplayInfo(); |
| display.getDisplayInfo(info); |
| mDisplayWidth = info.logicalWidth; |
| mDisplayHeight = info.logicalHeight; |
| } |
| |
| private int calculatePosition(int touchX, int touchY) { |
| return isHorizontalDivision() ? calculateYPosition(touchY) : calculateXPosition(touchX); |
| } |
| |
| public boolean isHorizontalDivision() { |
| return getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT; |
| } |
| |
| private int calculateXPosition(int touchX) { |
| return mStartPosition + touchX - mStartX; |
| } |
| |
| private int calculateYPosition(int touchY) { |
| return mStartPosition + touchY - mStartY; |
| } |
| |
| public void calculateBoundsForPosition(int position, int dockSide, Rect outRect) { |
| outRect.set(0, 0, mDisplayWidth, mDisplayHeight); |
| switch (dockSide) { |
| case WindowManager.DOCKED_LEFT: |
| outRect.right = position; |
| break; |
| case WindowManager.DOCKED_TOP: |
| outRect.bottom = position; |
| break; |
| case WindowManager.DOCKED_RIGHT: |
| outRect.left = position + mDividerWindowWidth - 2 * mDividerInsets; |
| break; |
| case WindowManager.DOCKED_BOTTOM: |
| outRect.top = position + mDividerWindowWidth - 2 * mDividerInsets; |
| break; |
| } |
| if (outRect.left > outRect.right) { |
| outRect.left = outRect.right; |
| } |
| if (outRect.top > outRect.bottom) { |
| outRect.top = outRect.bottom; |
| } |
| if (outRect.right < outRect.left) { |
| outRect.right = outRect.left; |
| } |
| if (outRect.bottom < outRect.top) { |
| outRect.bottom = outRect.top; |
| } |
| } |
| |
| public void resizeStack(int position) { |
| calculateBoundsForPosition(position, mDockSide, mTmpRect); |
| if (mTmpRect.equals(mLastResizeRect)) { |
| return; |
| } |
| |
| // Make sure shadows are updated |
| mBackground.invalidate(); |
| |
| mLastResizeRect.set(mTmpRect); |
| mWindowManagerProxy.resizeDockedStack(mTmpRect); |
| } |
| |
| @Override |
| public void onComputeInternalInsets(InternalInsetsInfo inoutInfo) { |
| inoutInfo.setTouchableInsets(InternalInsetsInfo.TOUCHABLE_INSETS_REGION); |
| inoutInfo.touchableRegion.set(mHandle.getLeft(), mHandle.getTop(), mHandle.getRight(), |
| mHandle.getBottom()); |
| inoutInfo.touchableRegion.op(mBackground.getLeft(), mBackground.getTop(), |
| mBackground.getRight(), mBackground.getBottom(), Op.UNION); |
| } |
| } |