| /* |
| * Copyright (C) 2017 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; |
| |
| import static android.view.Surface.ROTATION_0; |
| import static android.view.Surface.ROTATION_180; |
| import static android.view.Surface.ROTATION_270; |
| import static android.view.Surface.ROTATION_90; |
| import static android.view.ViewGroup.LayoutParams.MATCH_PARENT; |
| import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT; |
| import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS; |
| |
| import static com.android.systemui.tuner.TunablePadding.FLAG_END; |
| import static com.android.systemui.tuner.TunablePadding.FLAG_START; |
| |
| import android.annotation.Dimension; |
| import android.app.Fragment; |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.content.res.Configuration; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.graphics.PixelFormat; |
| import android.graphics.Rect; |
| import android.graphics.Region; |
| import android.hardware.display.DisplayManager; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.SystemProperties; |
| import android.provider.Settings.Secure; |
| import androidx.annotation.VisibleForTesting; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.view.DisplayCutout; |
| import android.view.DisplayInfo; |
| import android.view.Gravity; |
| import android.view.LayoutInflater; |
| import android.view.Surface; |
| import android.view.View; |
| import android.view.View.OnLayoutChangeListener; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.view.ViewTreeObserver; |
| import android.view.WindowManager; |
| import android.widget.FrameLayout; |
| import android.widget.ImageView; |
| |
| import com.android.internal.util.Preconditions; |
| import com.android.systemui.RegionInterceptingFrameLayout.RegionInterceptableView; |
| import com.android.systemui.fragments.FragmentHostManager; |
| import com.android.systemui.fragments.FragmentHostManager.FragmentListener; |
| import com.android.systemui.plugins.qs.QS; |
| import com.android.systemui.qs.SecureSetting; |
| import com.android.systemui.statusbar.phone.CollapsedStatusBarFragment; |
| import com.android.systemui.statusbar.phone.StatusBar; |
| import com.android.systemui.tuner.TunablePadding; |
| import com.android.systemui.tuner.TunerService; |
| import com.android.systemui.tuner.TunerService.Tunable; |
| import com.android.systemui.util.leak.RotationUtils; |
| |
| /** |
| * An overlay that draws screen decorations in software (e.g for rounded corners or display cutout) |
| * for antialiasing and emulation purposes. |
| */ |
| public class ScreenDecorations extends SystemUI implements Tunable { |
| private static final boolean DEBUG = false; |
| private static final String TAG = "ScreenDecorations"; |
| |
| public static final String SIZE = "sysui_rounded_size"; |
| public static final String PADDING = "sysui_rounded_content_padding"; |
| private static final boolean DEBUG_SCREENSHOT_ROUNDED_CORNERS = |
| SystemProperties.getBoolean("debug.screenshot_rounded_corners", false); |
| |
| private DisplayManager mDisplayManager; |
| private DisplayManager.DisplayListener mDisplayListener; |
| |
| @VisibleForTesting protected int mRoundedDefault; |
| @VisibleForTesting protected int mRoundedDefaultTop; |
| @VisibleForTesting protected int mRoundedDefaultBottom; |
| private View mOverlay; |
| private View mBottomOverlay; |
| private float mDensity; |
| private WindowManager mWindowManager; |
| private int mRotation; |
| private DisplayCutoutView mCutoutTop; |
| private DisplayCutoutView mCutoutBottom; |
| private boolean mPendingRotationChange; |
| private Handler mHandler; |
| |
| @Override |
| public void start() { |
| mHandler = startHandlerThread(); |
| mHandler.post(this::startOnScreenDecorationsThread); |
| setupStatusBarPaddingIfNeeded(); |
| } |
| |
| @VisibleForTesting |
| Handler startHandlerThread() { |
| HandlerThread thread = new HandlerThread("ScreenDecorations"); |
| thread.start(); |
| return thread.getThreadHandler(); |
| } |
| |
| private void startOnScreenDecorationsThread() { |
| mRotation = RotationUtils.getExactRotation(mContext); |
| mWindowManager = mContext.getSystemService(WindowManager.class); |
| updateRoundedCornerRadii(); |
| if (hasRoundedCorners() || shouldDrawCutout()) { |
| setupDecorations(); |
| } |
| |
| mDisplayListener = new DisplayManager.DisplayListener() { |
| @Override |
| public void onDisplayAdded(int displayId) { |
| // do nothing |
| } |
| |
| @Override |
| public void onDisplayRemoved(int displayId) { |
| // do nothing |
| } |
| |
| @Override |
| public void onDisplayChanged(int displayId) { |
| final int newRotation = RotationUtils.getExactRotation(mContext); |
| if (mOverlay != null && mBottomOverlay != null && mRotation != newRotation) { |
| // We cannot immediately update the orientation. Otherwise |
| // WindowManager is still deferring layout until it has finished dispatching |
| // the config changes, which may cause divergence between what we draw |
| // (new orientation), and where we are placed on the screen (old orientation). |
| // Instead we wait until either: |
| // - we are trying to redraw. This because WM resized our window and told us to. |
| // - the config change has been dispatched, so WM is no longer deferring layout. |
| mPendingRotationChange = true; |
| if (DEBUG) { |
| Log.i(TAG, "Rotation changed, deferring " + newRotation + ", staying at " |
| + mRotation); |
| } |
| |
| mOverlay.getViewTreeObserver().addOnPreDrawListener( |
| new RestartingPreDrawListener(mOverlay, newRotation)); |
| mBottomOverlay.getViewTreeObserver().addOnPreDrawListener( |
| new RestartingPreDrawListener(mBottomOverlay, newRotation)); |
| } |
| updateOrientation(); |
| } |
| }; |
| |
| mDisplayManager = (DisplayManager) mContext.getSystemService( |
| Context.DISPLAY_SERVICE); |
| mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); |
| updateOrientation(); |
| } |
| |
| private void setupDecorations() { |
| mOverlay = LayoutInflater.from(mContext) |
| .inflate(R.layout.rounded_corners, null); |
| mCutoutTop = new DisplayCutoutView(mContext, true, |
| this::updateWindowVisibilities, this); |
| ((ViewGroup)mOverlay).addView(mCutoutTop); |
| mBottomOverlay = LayoutInflater.from(mContext) |
| .inflate(R.layout.rounded_corners, null); |
| mCutoutBottom = new DisplayCutoutView(mContext, false, |
| this::updateWindowVisibilities, this); |
| ((ViewGroup)mBottomOverlay).addView(mCutoutBottom); |
| |
| mOverlay.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE); |
| mOverlay.setAlpha(0); |
| |
| mBottomOverlay.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE); |
| mBottomOverlay.setAlpha(0); |
| |
| updateViews(); |
| |
| mWindowManager.addView(mOverlay, getWindowLayoutParams()); |
| mWindowManager.addView(mBottomOverlay, getBottomLayoutParams()); |
| |
| DisplayMetrics metrics = new DisplayMetrics(); |
| mWindowManager.getDefaultDisplay().getMetrics(metrics); |
| mDensity = metrics.density; |
| |
| Dependency.get(Dependency.MAIN_HANDLER).post( |
| () -> Dependency.get(TunerService.class).addTunable(this, SIZE)); |
| |
| // Watch color inversion and invert the overlay as needed. |
| SecureSetting setting = new SecureSetting(mContext, mHandler, |
| Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED) { |
| @Override |
| protected void handleValueChanged(int value, boolean observedChange) { |
| int tint = value != 0 ? Color.WHITE : Color.BLACK; |
| ColorStateList tintList = ColorStateList.valueOf(tint); |
| ((ImageView) mOverlay.findViewById(R.id.left)).setImageTintList(tintList); |
| ((ImageView) mOverlay.findViewById(R.id.right)).setImageTintList(tintList); |
| ((ImageView) mBottomOverlay.findViewById(R.id.left)).setImageTintList(tintList); |
| ((ImageView) mBottomOverlay.findViewById(R.id.right)).setImageTintList(tintList); |
| mCutoutTop.setColor(tint); |
| mCutoutBottom.setColor(tint); |
| } |
| }; |
| setting.setListening(true); |
| setting.onChange(false); |
| |
| mOverlay.addOnLayoutChangeListener(new OnLayoutChangeListener() { |
| @Override |
| public void onLayoutChange(View v, int left, int top, int right, int bottom, |
| int oldLeft, |
| int oldTop, int oldRight, int oldBottom) { |
| mOverlay.removeOnLayoutChangeListener(this); |
| mOverlay.animate() |
| .alpha(1) |
| .setDuration(1000) |
| .start(); |
| mBottomOverlay.animate() |
| .alpha(1) |
| .setDuration(1000) |
| .start(); |
| } |
| }); |
| |
| mOverlay.getViewTreeObserver().addOnPreDrawListener( |
| new ValidatingPreDrawListener(mOverlay)); |
| mBottomOverlay.getViewTreeObserver().addOnPreDrawListener( |
| new ValidatingPreDrawListener(mBottomOverlay)); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| mHandler.post(() -> { |
| int oldRotation = mRotation; |
| mPendingRotationChange = false; |
| updateOrientation(); |
| updateRoundedCornerRadii(); |
| if (DEBUG) Log.i(TAG, "onConfigChanged from rot " + oldRotation + " to " + mRotation); |
| if (shouldDrawCutout() && mOverlay == null) { |
| setupDecorations(); |
| } |
| if (mOverlay != null) { |
| // Updating the layout params ensures that ViewRootImpl will call relayoutWindow(), |
| // which ensures that the forced seamless rotation will end, even if we updated |
| // the rotation before window manager was ready (and was still waiting for sending |
| // the updated rotation). |
| updateLayoutParams(); |
| } |
| }); |
| } |
| |
| private void updateOrientation() { |
| Preconditions.checkState(mHandler.getLooper().getThread() == Thread.currentThread(), |
| "must call on " + mHandler.getLooper().getThread() |
| + ", but was " + Thread.currentThread()); |
| if (mPendingRotationChange) { |
| return; |
| } |
| int newRotation = RotationUtils.getExactRotation(mContext); |
| if (newRotation != mRotation) { |
| mRotation = newRotation; |
| |
| if (mOverlay != null) { |
| updateLayoutParams(); |
| updateViews(); |
| } |
| } |
| } |
| |
| private void updateRoundedCornerRadii() { |
| final int newRoundedDefault = mContext.getResources().getDimensionPixelSize( |
| R.dimen.rounded_corner_radius); |
| final int newRoundedDefaultTop = mContext.getResources().getDimensionPixelSize( |
| R.dimen.rounded_corner_radius_top); |
| final int newRoundedDefaultBottom = mContext.getResources().getDimensionPixelSize( |
| R.dimen.rounded_corner_radius_bottom); |
| |
| final boolean roundedCornersChanged = mRoundedDefault != newRoundedDefault |
| || mRoundedDefaultBottom != newRoundedDefaultBottom |
| || mRoundedDefaultTop != newRoundedDefaultTop; |
| |
| if (roundedCornersChanged) { |
| mRoundedDefault = newRoundedDefault; |
| mRoundedDefaultTop = newRoundedDefaultTop; |
| mRoundedDefaultBottom = newRoundedDefaultBottom; |
| onTuningChanged(SIZE, null); |
| } |
| } |
| |
| private void updateViews() { |
| View topLeft = mOverlay.findViewById(R.id.left); |
| View topRight = mOverlay.findViewById(R.id.right); |
| View bottomLeft = mBottomOverlay.findViewById(R.id.left); |
| View bottomRight = mBottomOverlay.findViewById(R.id.right); |
| |
| if (mRotation == RotationUtils.ROTATION_NONE) { |
| updateView(topLeft, Gravity.TOP | Gravity.LEFT, 0); |
| updateView(topRight, Gravity.TOP | Gravity.RIGHT, 90); |
| updateView(bottomLeft, Gravity.BOTTOM | Gravity.LEFT, 270); |
| updateView(bottomRight, Gravity.BOTTOM | Gravity.RIGHT, 180); |
| } else if (mRotation == RotationUtils.ROTATION_LANDSCAPE) { |
| updateView(topLeft, Gravity.TOP | Gravity.LEFT, 0); |
| updateView(topRight, Gravity.BOTTOM | Gravity.LEFT, 270); |
| updateView(bottomLeft, Gravity.TOP | Gravity.RIGHT, 90);; |
| updateView(bottomRight, Gravity.BOTTOM | Gravity.RIGHT, 180); |
| } else if (mRotation == RotationUtils.ROTATION_UPSIDE_DOWN) { |
| updateView(topLeft, Gravity.BOTTOM | Gravity.LEFT, 270); |
| updateView(topRight, Gravity.BOTTOM | Gravity.RIGHT, 180); |
| updateView(bottomLeft, Gravity.TOP | Gravity.LEFT, 0); |
| updateView(bottomRight, Gravity.TOP | Gravity.RIGHT, 90); |
| } else if (mRotation == RotationUtils.ROTATION_SEASCAPE) { |
| updateView(topLeft, Gravity.BOTTOM | Gravity.RIGHT, 180); |
| updateView(topRight, Gravity.TOP | Gravity.RIGHT, 90); |
| updateView(bottomLeft, Gravity.BOTTOM | Gravity.LEFT, 270); |
| updateView(bottomRight, Gravity.TOP | Gravity.LEFT, 0); |
| } |
| |
| mCutoutTop.setRotation(mRotation); |
| mCutoutBottom.setRotation(mRotation); |
| |
| updateWindowVisibilities(); |
| } |
| |
| private void updateView(View v, int gravity, int rotation) { |
| ((FrameLayout.LayoutParams)v.getLayoutParams()).gravity = gravity; |
| v.setRotation(rotation); |
| } |
| |
| private void updateWindowVisibilities() { |
| updateWindowVisibility(mOverlay); |
| updateWindowVisibility(mBottomOverlay); |
| } |
| |
| private void updateWindowVisibility(View overlay) { |
| boolean visibleForCutout = shouldDrawCutout() |
| && overlay.findViewById(R.id.display_cutout).getVisibility() == View.VISIBLE; |
| boolean visibleForRoundedCorners = hasRoundedCorners(); |
| overlay.setVisibility(visibleForCutout || visibleForRoundedCorners |
| ? View.VISIBLE : View.GONE); |
| } |
| |
| private boolean hasRoundedCorners() { |
| return mRoundedDefault > 0 || mRoundedDefaultBottom > 0 || mRoundedDefaultTop > 0; |
| } |
| |
| private boolean shouldDrawCutout() { |
| return shouldDrawCutout(mContext); |
| } |
| |
| static boolean shouldDrawCutout(Context context) { |
| return context.getResources().getBoolean( |
| com.android.internal.R.bool.config_fillMainBuiltInDisplayCutout); |
| } |
| |
| |
| private void setupStatusBarPaddingIfNeeded() { |
| // TODO: This should be moved to a more appropriate place, as it is not related to the |
| // screen decorations overlay. |
| int padding = mContext.getResources().getDimensionPixelSize( |
| R.dimen.rounded_corner_content_padding); |
| if (padding != 0) { |
| setupStatusBarPadding(padding); |
| } |
| |
| } |
| |
| private void setupStatusBarPadding(int padding) { |
| // Add some padding to all the content near the edge of the screen. |
| StatusBar sb = getComponent(StatusBar.class); |
| View statusBar = (sb != null ? sb.getStatusBarWindow() : null); |
| if (statusBar != null) { |
| TunablePadding.addTunablePadding(statusBar.findViewById(R.id.keyguard_header), PADDING, |
| padding, FLAG_END); |
| |
| FragmentHostManager fragmentHostManager = FragmentHostManager.get(statusBar); |
| fragmentHostManager.addTagListener(CollapsedStatusBarFragment.TAG, |
| new TunablePaddingTagListener(padding, R.id.status_bar)); |
| fragmentHostManager.addTagListener(QS.TAG, |
| new TunablePaddingTagListener(padding, R.id.header)); |
| } |
| } |
| |
| @VisibleForTesting |
| WindowManager.LayoutParams getWindowLayoutParams() { |
| final WindowManager.LayoutParams lp = new WindowManager.LayoutParams( |
| ViewGroup.LayoutParams.MATCH_PARENT, |
| LayoutParams.WRAP_CONTENT, |
| WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL, |
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
| | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
| | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH |
| | WindowManager.LayoutParams.FLAG_SLIPPERY |
| | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN, |
| PixelFormat.TRANSLUCENT); |
| lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS |
| | WindowManager.LayoutParams.PRIVATE_FLAG_NO_MOVE_ANIMATION; |
| |
| if (!DEBUG_SCREENSHOT_ROUNDED_CORNERS) { |
| lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY; |
| } |
| |
| lp.setTitle("ScreenDecorOverlay"); |
| if (mRotation == RotationUtils.ROTATION_SEASCAPE |
| || mRotation == RotationUtils.ROTATION_UPSIDE_DOWN) { |
| lp.gravity = Gravity.BOTTOM | Gravity.RIGHT; |
| } else { |
| lp.gravity = Gravity.TOP | Gravity.LEFT; |
| } |
| lp.layoutInDisplayCutoutMode = LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS; |
| if (isLandscape(mRotation)) { |
| lp.width = WRAP_CONTENT; |
| lp.height = MATCH_PARENT; |
| } |
| return lp; |
| } |
| |
| private WindowManager.LayoutParams getBottomLayoutParams() { |
| WindowManager.LayoutParams lp = getWindowLayoutParams(); |
| lp.setTitle("ScreenDecorOverlayBottom"); |
| if (mRotation == RotationUtils.ROTATION_SEASCAPE |
| || mRotation == RotationUtils.ROTATION_UPSIDE_DOWN) { |
| lp.gravity = Gravity.TOP | Gravity.LEFT; |
| } else { |
| lp.gravity = Gravity.BOTTOM | Gravity.RIGHT; |
| } |
| return lp; |
| } |
| |
| private void updateLayoutParams() { |
| mWindowManager.updateViewLayout(mOverlay, getWindowLayoutParams()); |
| mWindowManager.updateViewLayout(mBottomOverlay, getBottomLayoutParams()); |
| } |
| |
| @Override |
| public void onTuningChanged(String key, String newValue) { |
| mHandler.post(() -> { |
| if (mOverlay == null) return; |
| if (SIZE.equals(key)) { |
| int size = mRoundedDefault; |
| int sizeTop = mRoundedDefaultTop; |
| int sizeBottom = mRoundedDefaultBottom; |
| if (newValue != null) { |
| try { |
| size = (int) (Integer.parseInt(newValue) * mDensity); |
| } catch (Exception e) { |
| } |
| } |
| |
| if (sizeTop == 0) { |
| sizeTop = size; |
| } |
| if (sizeBottom == 0) { |
| sizeBottom = size; |
| } |
| |
| setSize(mOverlay.findViewById(R.id.left), sizeTop); |
| setSize(mOverlay.findViewById(R.id.right), sizeTop); |
| setSize(mBottomOverlay.findViewById(R.id.left), sizeBottom); |
| setSize(mBottomOverlay.findViewById(R.id.right), sizeBottom); |
| } |
| }); |
| } |
| |
| private void setSize(View view, int pixelSize) { |
| LayoutParams params = view.getLayoutParams(); |
| params.width = pixelSize; |
| params.height = pixelSize; |
| view.setLayoutParams(params); |
| } |
| |
| @VisibleForTesting |
| static class TunablePaddingTagListener implements FragmentListener { |
| |
| private final int mPadding; |
| private final int mId; |
| private TunablePadding mTunablePadding; |
| |
| public TunablePaddingTagListener(int padding, int id) { |
| mPadding = padding; |
| mId = id; |
| } |
| |
| @Override |
| public void onFragmentViewCreated(String tag, Fragment fragment) { |
| if (mTunablePadding != null) { |
| mTunablePadding.destroy(); |
| } |
| View view = fragment.getView(); |
| if (mId != 0) { |
| view = view.findViewById(mId); |
| } |
| mTunablePadding = TunablePadding.addTunablePadding(view, PADDING, mPadding, |
| FLAG_START | FLAG_END); |
| } |
| } |
| |
| public static class DisplayCutoutView extends View implements DisplayManager.DisplayListener, |
| RegionInterceptableView { |
| |
| private final DisplayInfo mInfo = new DisplayInfo(); |
| private final Paint mPaint = new Paint(); |
| private final Region mBounds = new Region(); |
| private final Rect mBoundingRect = new Rect(); |
| private final Path mBoundingPath = new Path(); |
| private final int[] mLocation = new int[2]; |
| private final boolean mInitialStart; |
| private final Runnable mVisibilityChangedListener; |
| private final ScreenDecorations mDecorations; |
| private int mColor = Color.BLACK; |
| private boolean mStart; |
| private int mRotation; |
| |
| public DisplayCutoutView(Context context, boolean start, |
| Runnable visibilityChangedListener, ScreenDecorations decorations) { |
| super(context); |
| mInitialStart = start; |
| mVisibilityChangedListener = visibilityChangedListener; |
| mDecorations = decorations; |
| setId(R.id.display_cutout); |
| if (DEBUG) { |
| getViewTreeObserver().addOnDrawListener(() -> Log.i(TAG, |
| (mInitialStart ? "OverlayTop" : "OverlayBottom") |
| + " drawn in rot " + mRotation)); |
| } |
| } |
| |
| public void setColor(int color) { |
| mColor = color; |
| invalidate(); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| mContext.getSystemService(DisplayManager.class).registerDisplayListener(this, |
| getHandler()); |
| update(); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| mContext.getSystemService(DisplayManager.class).unregisterDisplayListener(this); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| getLocationOnScreen(mLocation); |
| canvas.translate(-mLocation[0], -mLocation[1]); |
| if (!mBoundingPath.isEmpty()) { |
| mPaint.setColor(mColor); |
| mPaint.setStyle(Paint.Style.FILL); |
| mPaint.setAntiAlias(true); |
| canvas.drawPath(mBoundingPath, mPaint); |
| } |
| } |
| |
| @Override |
| public void onDisplayAdded(int displayId) { |
| } |
| |
| @Override |
| public void onDisplayRemoved(int displayId) { |
| } |
| |
| @Override |
| public void onDisplayChanged(int displayId) { |
| if (displayId == getDisplay().getDisplayId()) { |
| update(); |
| } |
| } |
| |
| public void setRotation(int rotation) { |
| mRotation = rotation; |
| update(); |
| } |
| |
| private boolean isStart() { |
| final boolean flipped = (mRotation == RotationUtils.ROTATION_SEASCAPE |
| || mRotation == RotationUtils.ROTATION_UPSIDE_DOWN); |
| return flipped ? !mInitialStart : mInitialStart; |
| } |
| |
| private void update() { |
| if (!isAttachedToWindow() || mDecorations.mPendingRotationChange) { |
| return; |
| } |
| mStart = isStart(); |
| requestLayout(); |
| getDisplay().getDisplayInfo(mInfo); |
| mBounds.setEmpty(); |
| mBoundingRect.setEmpty(); |
| mBoundingPath.reset(); |
| int newVisible; |
| if (shouldDrawCutout(getContext()) && hasCutout()) { |
| mBounds.set(mInfo.displayCutout.getBounds()); |
| localBounds(mBoundingRect); |
| updateBoundingPath(); |
| invalidate(); |
| newVisible = VISIBLE; |
| } else { |
| newVisible = GONE; |
| } |
| if (newVisible != getVisibility()) { |
| setVisibility(newVisible); |
| mVisibilityChangedListener.run(); |
| } |
| } |
| |
| private void updateBoundingPath() { |
| int lw = mInfo.logicalWidth; |
| int lh = mInfo.logicalHeight; |
| |
| boolean flipped = mInfo.rotation == ROTATION_90 || mInfo.rotation == ROTATION_270; |
| |
| int dw = flipped ? lh : lw; |
| int dh = flipped ? lw : lh; |
| |
| mBoundingPath.set(DisplayCutout.pathFromResources(getResources(), dw, dh)); |
| Matrix m = new Matrix(); |
| transformPhysicalToLogicalCoordinates(mInfo.rotation, dw, dh, m); |
| mBoundingPath.transform(m); |
| } |
| |
| private static void transformPhysicalToLogicalCoordinates(@Surface.Rotation int rotation, |
| @Dimension int physicalWidth, @Dimension int physicalHeight, Matrix out) { |
| switch (rotation) { |
| case ROTATION_0: |
| out.reset(); |
| break; |
| case ROTATION_90: |
| out.setRotate(270); |
| out.postTranslate(0, physicalWidth); |
| break; |
| case ROTATION_180: |
| out.setRotate(180); |
| out.postTranslate(physicalWidth, physicalHeight); |
| break; |
| case ROTATION_270: |
| out.setRotate(90); |
| out.postTranslate(physicalHeight, 0); |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown rotation: " + rotation); |
| } |
| } |
| |
| private boolean hasCutout() { |
| final DisplayCutout displayCutout = mInfo.displayCutout; |
| if (displayCutout == null) { |
| return false; |
| } |
| if (mStart) { |
| return displayCutout.getSafeInsetLeft() > 0 |
| || displayCutout.getSafeInsetTop() > 0; |
| } else { |
| return displayCutout.getSafeInsetRight() > 0 |
| || displayCutout.getSafeInsetBottom() > 0; |
| } |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| if (mBounds.isEmpty()) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| return; |
| } |
| setMeasuredDimension( |
| resolveSizeAndState(mBoundingRect.width(), widthMeasureSpec, 0), |
| resolveSizeAndState(mBoundingRect.height(), heightMeasureSpec, 0)); |
| } |
| |
| public static void boundsFromDirection(DisplayCutout displayCutout, int gravity, |
| Rect out) { |
| Region bounds = boundsFromDirection(displayCutout, gravity); |
| out.set(bounds.getBounds()); |
| bounds.recycle(); |
| } |
| |
| public static Region boundsFromDirection(DisplayCutout displayCutout, int gravity) { |
| Region bounds = displayCutout.getBounds(); |
| switch (gravity) { |
| case Gravity.TOP: |
| bounds.op(0, 0, Integer.MAX_VALUE, displayCutout.getSafeInsetTop(), |
| Region.Op.INTERSECT); |
| break; |
| case Gravity.LEFT: |
| bounds.op(0, 0, displayCutout.getSafeInsetLeft(), Integer.MAX_VALUE, |
| Region.Op.INTERSECT); |
| break; |
| case Gravity.BOTTOM: |
| bounds.op(0, displayCutout.getSafeInsetTop() + 1, Integer.MAX_VALUE, |
| Integer.MAX_VALUE, Region.Op.INTERSECT); |
| break; |
| case Gravity.RIGHT: |
| bounds.op(displayCutout.getSafeInsetLeft() + 1, 0, Integer.MAX_VALUE, |
| Integer.MAX_VALUE, Region.Op.INTERSECT); |
| break; |
| } |
| return bounds; |
| } |
| |
| private void localBounds(Rect out) { |
| final DisplayCutout displayCutout = mInfo.displayCutout; |
| |
| if (mStart) { |
| if (displayCutout.getSafeInsetLeft() > 0) { |
| boundsFromDirection(displayCutout, Gravity.LEFT, out); |
| } else if (displayCutout.getSafeInsetTop() > 0) { |
| boundsFromDirection(displayCutout, Gravity.TOP, out); |
| } |
| } else { |
| if (displayCutout.getSafeInsetRight() > 0) { |
| boundsFromDirection(displayCutout, Gravity.RIGHT, out); |
| } else if (displayCutout.getSafeInsetBottom() > 0) { |
| boundsFromDirection(displayCutout, Gravity.BOTTOM, out); |
| } |
| } |
| } |
| |
| @Override |
| public boolean shouldInterceptTouch() { |
| return mInfo.displayCutout != null && getVisibility() == VISIBLE; |
| } |
| |
| @Override |
| public Region getInterceptRegion() { |
| if (mInfo.displayCutout == null) { |
| return null; |
| } |
| |
| View rootView = getRootView(); |
| Region cutoutBounds = mInfo.displayCutout.getBounds(); |
| |
| // Transform to window's coordinate space |
| rootView.getLocationOnScreen(mLocation); |
| cutoutBounds.translate(-mLocation[0], -mLocation[1]); |
| |
| // Intersect with window's frame |
| cutoutBounds.op(rootView.getLeft(), rootView.getTop(), rootView.getRight(), |
| rootView.getBottom(), Region.Op.INTERSECT); |
| |
| return cutoutBounds; |
| } |
| } |
| |
| private boolean isLandscape(int rotation) { |
| return rotation == RotationUtils.ROTATION_LANDSCAPE || rotation == |
| RotationUtils.ROTATION_SEASCAPE; |
| } |
| |
| /** |
| * A pre-draw listener, that cancels the draw and restarts the traversal with the updated |
| * window attributes. |
| */ |
| private class RestartingPreDrawListener implements ViewTreeObserver.OnPreDrawListener { |
| |
| private final View mView; |
| private final int mTargetRotation; |
| |
| private RestartingPreDrawListener(View view, int targetRotation) { |
| mView = view; |
| mTargetRotation = targetRotation; |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| mView.getViewTreeObserver().removeOnPreDrawListener(this); |
| |
| if (mTargetRotation == mRotation) { |
| if (DEBUG) { |
| Log.i(TAG, (mView == mOverlay ? "OverlayTop" : "OverlayBottom") |
| + " already in target rot " |
| + mTargetRotation + ", allow draw without restarting it"); |
| } |
| return true; |
| } |
| |
| mPendingRotationChange = false; |
| // This changes the window attributes - we need to restart the traversal for them to |
| // take effect. |
| updateOrientation(); |
| if (DEBUG) { |
| Log.i(TAG, (mView == mOverlay ? "OverlayTop" : "OverlayBottom") |
| + " restarting listener fired, restarting draw for rot " + mRotation); |
| } |
| mView.invalidate(); |
| return false; |
| } |
| } |
| |
| /** |
| * A pre-draw listener, that validates that the rotation we draw in matches the displays |
| * rotation before continuing the draw. |
| * |
| * This is to prevent a race condition, where we have not received the display changed event |
| * yet, and would thus draw in an old orientation. |
| */ |
| private class ValidatingPreDrawListener implements ViewTreeObserver.OnPreDrawListener { |
| |
| private final View mView; |
| |
| public ValidatingPreDrawListener(View view) { |
| mView = view; |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| final int displayRotation = RotationUtils.getExactRotation(mContext); |
| if (displayRotation != mRotation && !mPendingRotationChange) { |
| if (DEBUG) { |
| Log.i(TAG, "Drawing rot " + mRotation + ", but display is at rot " |
| + displayRotation + ". Restarting draw"); |
| } |
| mView.invalidate(); |
| return false; |
| } |
| return true; |
| } |
| } |
| } |