| /* |
| * 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 static android.content.res.Configuration.ORIENTATION_LANDSCAPE; |
| import static android.view.Display.DEFAULT_DISPLAY; |
| |
| import android.app.ActivityTaskManager; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.graphics.Rect; |
| import android.os.Handler; |
| import android.os.RemoteException; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.view.IWindowContainer; |
| import android.view.LayoutInflater; |
| import android.view.SurfaceControl; |
| import android.view.SurfaceSession; |
| import android.view.View; |
| import android.view.WindowContainerTransaction; |
| |
| import com.android.internal.policy.DividerSnapAlgorithm; |
| import com.android.systemui.R; |
| import com.android.systemui.SystemUI; |
| import com.android.systemui.TransactionPool; |
| import com.android.systemui.recents.Recents; |
| import com.android.systemui.statusbar.policy.KeyguardStateController; |
| import com.android.systemui.wm.DisplayChangeController; |
| import com.android.systemui.wm.DisplayController; |
| import com.android.systemui.wm.DisplayImeController; |
| import com.android.systemui.wm.DisplayLayout; |
| import com.android.systemui.wm.SystemWindows; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| import java.util.Optional; |
| import java.util.function.Consumer; |
| |
| import javax.inject.Singleton; |
| |
| import dagger.Lazy; |
| |
| /** |
| * Controls the docked stack divider. |
| */ |
| @Singleton |
| public class Divider extends SystemUI implements DividerView.DividerCallbacks, |
| DisplayController.OnDisplaysChangedListener { |
| private static final String TAG = "Divider"; |
| |
| static final boolean DEBUG = true; |
| |
| static final int DEFAULT_APP_TRANSITION_DURATION = 336; |
| |
| private final Optional<Lazy<Recents>> mRecentsOptionalLazy; |
| |
| private DividerWindowManager mWindowManager; |
| private DividerView mView; |
| private final DividerState mDividerState = new DividerState(); |
| private boolean mVisible = false; |
| private boolean mMinimized = false; |
| private boolean mAdjustedForIme = false; |
| private boolean mHomeStackResizable = false; |
| private ForcedResizableInfoActivityController mForcedResizableController; |
| private SystemWindows mSystemWindows; |
| final SurfaceSession mSurfaceSession = new SurfaceSession(); |
| private DisplayController mDisplayController; |
| private DisplayImeController mImeController; |
| final TransactionPool mTransactionPool; |
| |
| // Keeps track of real-time split geometry including snap positions and ime adjustments |
| private SplitDisplayLayout mSplitLayout; |
| |
| // Transient: this contains the layout calculated for a new rotation requested by WM. This is |
| // kept around so that we can wait for a matching configuration change and then use the exact |
| // layout that we sent back to WM. |
| private SplitDisplayLayout mRotateSplitLayout; |
| |
| private Handler mHandler; |
| private KeyguardStateController mKeyguardStateController; |
| |
| private final ArrayList<WeakReference<Consumer<Boolean>>> mDockedStackExistsListeners = |
| new ArrayList<>(); |
| |
| private SplitScreenTaskOrganizer mSplits = new SplitScreenTaskOrganizer(this); |
| |
| private DisplayChangeController.OnDisplayChangingListener mRotationController = |
| (display, fromRotation, toRotation, t) -> { |
| DisplayLayout displayLayout = |
| new DisplayLayout(mDisplayController.getDisplayLayout(display)); |
| SplitDisplayLayout sdl = new SplitDisplayLayout(mContext, displayLayout, mSplits); |
| sdl.rotateTo(toRotation); |
| mRotateSplitLayout = sdl; |
| int position = mMinimized ? mView.mSnapTargetBeforeMinimized.position |
| : mView.getCurrentPosition(); |
| DividerSnapAlgorithm snap = sdl.getSnapAlgorithm(); |
| final DividerSnapAlgorithm.SnapTarget target = |
| snap.calculateNonDismissingSnapTarget(position); |
| sdl.resizeSplits(target.position, t); |
| |
| if (inSplitMode()) { |
| WindowManagerProxy.applyHomeTasksMinimized(sdl, mSplits.mSecondary.token, t); |
| } |
| }; |
| |
| private IWindowContainer mLastImeTarget = null; |
| private boolean mShouldAdjustForIme = false; |
| |
| private DisplayImeController.ImePositionProcessor mImePositionProcessor = |
| new DisplayImeController.ImePositionProcessor() { |
| private int mStartTop = 0; |
| private int mFinalTop = 0; |
| @Override |
| public void onImeStartPositioning(int displayId, int imeTop, int finalImeTop, |
| boolean showing, SurfaceControl.Transaction t) { |
| mStartTop = imeTop; |
| mFinalTop = finalImeTop; |
| if (showing) { |
| try { |
| mLastImeTarget = ActivityTaskManager.getTaskOrganizerController() |
| .getImeTarget(displayId); |
| mShouldAdjustForIme = mLastImeTarget != null |
| && !mSplitLayout.mDisplayLayout.isLandscape() |
| && (mLastImeTarget.asBinder() |
| == mSplits.mSecondary.token.asBinder()); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to get IME target", e); |
| } |
| } |
| if (!mShouldAdjustForIme) { |
| setAdjustedForIme(false); |
| return; |
| } |
| mView.setAdjustedForIme(showing, showing |
| ? DisplayImeController.ANIMATION_DURATION_SHOW_MS |
| : DisplayImeController.ANIMATION_DURATION_HIDE_MS); |
| // Reposition the server's secondary split position so that it evaluates |
| // insets properly. |
| WindowContainerTransaction wct = new WindowContainerTransaction(); |
| if (showing) { |
| mSplitLayout.updateAdjustedBounds(finalImeTop, imeTop, finalImeTop); |
| wct.setBounds(mSplits.mSecondary.token, mSplitLayout.mAdjustedSecondary); |
| } else { |
| wct.setBounds(mSplits.mSecondary.token, mSplitLayout.mSecondary); |
| } |
| try { |
| ActivityTaskManager.getTaskOrganizerController() |
| .applyContainerTransaction(wct, null /* organizer */); |
| } catch (RemoteException e) { |
| } |
| setAdjustedForIme(showing); |
| } |
| |
| @Override |
| public void onImePositionChanged(int displayId, int imeTop, |
| SurfaceControl.Transaction t) { |
| if (!mShouldAdjustForIme) { |
| return; |
| } |
| mSplitLayout.updateAdjustedBounds(imeTop, mStartTop, mFinalTop); |
| mView.resizeSplitSurfaces(t, mSplitLayout.mAdjustedPrimary, |
| mSplitLayout.mAdjustedSecondary); |
| final boolean showing = mFinalTop < mStartTop; |
| final float progress = ((float) (imeTop - mStartTop)) / (mFinalTop - mStartTop); |
| final float fraction = showing ? progress : 1.f - progress; |
| mView.setResizeDimLayer(t, true /* primary */, fraction * 0.3f); |
| } |
| |
| @Override |
| public void onImeEndPositioning(int displayId, int imeTop, |
| boolean showing, SurfaceControl.Transaction t) { |
| if (!mShouldAdjustForIme) { |
| return; |
| } |
| mSplitLayout.updateAdjustedBounds(imeTop, mStartTop, mFinalTop); |
| mView.resizeSplitSurfaces(t, mSplitLayout.mAdjustedPrimary, |
| mSplitLayout.mAdjustedSecondary); |
| mView.setResizeDimLayer(t, true /* primary */, showing ? 0.3f : 0.f); |
| } |
| }; |
| |
| public Divider(Context context, Optional<Lazy<Recents>> recentsOptionalLazy, |
| DisplayController displayController, SystemWindows systemWindows, |
| DisplayImeController imeController, Handler handler, |
| KeyguardStateController keyguardStateController, TransactionPool transactionPool) { |
| super(context); |
| mDisplayController = displayController; |
| mSystemWindows = systemWindows; |
| mImeController = imeController; |
| mHandler = handler; |
| mKeyguardStateController = keyguardStateController; |
| mRecentsOptionalLazy = recentsOptionalLazy; |
| mForcedResizableController = new ForcedResizableInfoActivityController(context, this); |
| mTransactionPool = transactionPool; |
| } |
| |
| @Override |
| public void start() { |
| mWindowManager = new DividerWindowManager(mSystemWindows); |
| mDisplayController.addDisplayWindowListener(this); |
| // Hide the divider when keyguard is showing. Even though keyguard/statusbar is above |
| // everything, it is actually transparent except for notifications, so we still need to |
| // hide any surfaces that are below it. |
| // TODO(b/148906453): Figure out keyguard dismiss animation for divider view. |
| mKeyguardStateController.addCallback(new KeyguardStateController.Callback() { |
| @Override |
| public void onUnlockedChanged() { |
| |
| } |
| |
| @Override |
| public void onKeyguardShowingChanged() { |
| if (!inSplitMode() || mView == null) { |
| return; |
| } |
| mView.setHidden(mKeyguardStateController.isShowing()); |
| } |
| |
| @Override |
| public void onKeyguardFadingAwayChanged() { |
| |
| } |
| }); |
| // Don't initialize the divider or anything until we get the default display. |
| } |
| |
| @Override |
| public void onDisplayAdded(int displayId) { |
| if (displayId != DEFAULT_DISPLAY) { |
| return; |
| } |
| mSplitLayout = new SplitDisplayLayout(mDisplayController.getDisplayContext(displayId), |
| mDisplayController.getDisplayLayout(displayId), mSplits); |
| mImeController.addPositionProcessor(mImePositionProcessor); |
| mDisplayController.addDisplayChangingController(mRotationController); |
| try { |
| mSplits.init(ActivityTaskManager.getTaskOrganizerController(), mSurfaceSession); |
| // Set starting tile bounds based on middle target |
| final WindowContainerTransaction tct = new WindowContainerTransaction(); |
| int midPos = mSplitLayout.getSnapAlgorithm().getMiddleTarget().position; |
| mSplitLayout.resizeSplits(midPos, tct); |
| ActivityTaskManager.getTaskOrganizerController().applyContainerTransaction(tct, |
| null /* organizer */); |
| } catch (Exception e) { |
| Slog.e(TAG, "Failed to register docked stack listener", e); |
| } |
| update(mDisplayController.getDisplayContext(displayId).getResources().getConfiguration()); |
| } |
| |
| @Override |
| public void onDisplayConfigurationChanged(int displayId, Configuration newConfig) { |
| if (displayId != DEFAULT_DISPLAY) { |
| return; |
| } |
| mSplitLayout = new SplitDisplayLayout(mDisplayController.getDisplayContext(displayId), |
| mDisplayController.getDisplayLayout(displayId), mSplits); |
| if (mRotateSplitLayout == null) { |
| int midPos = mSplitLayout.getSnapAlgorithm().getMiddleTarget().position; |
| final WindowContainerTransaction tct = new WindowContainerTransaction(); |
| mSplitLayout.resizeSplits(midPos, tct); |
| try { |
| ActivityTaskManager.getTaskOrganizerController().applyContainerTransaction(tct, |
| null /* organizer */); |
| } catch (RemoteException e) { |
| } |
| } else if (mRotateSplitLayout != null |
| && mSplitLayout.mDisplayLayout.rotation() |
| == mRotateSplitLayout.mDisplayLayout.rotation()) { |
| mSplitLayout.mPrimary = new Rect(mRotateSplitLayout.mPrimary); |
| mSplitLayout.mSecondary = new Rect(mRotateSplitLayout.mSecondary); |
| mRotateSplitLayout = null; |
| } |
| update(newConfig); |
| } |
| |
| Handler getHandler() { |
| return mHandler; |
| } |
| |
| public DividerView getView() { |
| return mView; |
| } |
| |
| public boolean isMinimized() { |
| return mMinimized; |
| } |
| |
| public boolean isHomeStackResizable() { |
| return mHomeStackResizable; |
| } |
| |
| /** {@code true} if this is visible */ |
| public boolean inSplitMode() { |
| return mView != null && mView.getVisibility() == View.VISIBLE; |
| } |
| |
| private void addDivider(Configuration configuration) { |
| Context dctx = mDisplayController.getDisplayContext(mContext.getDisplayId()); |
| mView = (DividerView) |
| LayoutInflater.from(dctx).inflate(R.layout.docked_stack_divider, null); |
| DisplayLayout displayLayout = mDisplayController.getDisplayLayout(mContext.getDisplayId()); |
| mView.injectDependencies(mWindowManager, mDividerState, this, mSplits, mSplitLayout); |
| mView.setVisibility(mVisible ? View.VISIBLE : View.INVISIBLE); |
| mView.setMinimizedDockStack(mMinimized, mHomeStackResizable); |
| final int size = dctx.getResources().getDimensionPixelSize( |
| com.android.internal.R.dimen.docked_stack_divider_thickness); |
| final boolean landscape = configuration.orientation == ORIENTATION_LANDSCAPE; |
| final int width = landscape ? size : displayLayout.width(); |
| final int height = landscape ? displayLayout.height() : size; |
| mWindowManager.add(mView, width, height, mContext.getDisplayId()); |
| } |
| |
| private void removeDivider() { |
| if (mView != null) { |
| mView.onDividerRemoved(); |
| } |
| mWindowManager.remove(); |
| } |
| |
| private void update(Configuration configuration) { |
| removeDivider(); |
| addDivider(configuration); |
| if (mMinimized && mView != null) { |
| mView.setMinimizedDockStack(true, mHomeStackResizable); |
| updateTouchable(); |
| } |
| } |
| |
| void updateVisibility(final boolean visible) { |
| if (mVisible != visible) { |
| mVisible = visible; |
| mView.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); |
| |
| if (visible) { |
| mView.enterSplitMode(mHomeStackResizable); |
| // Update state because animations won't finish. |
| mView.setMinimizedDockStack(mMinimized, mHomeStackResizable); |
| } else { |
| mView.exitSplitMode(); |
| // un-minimize so that next entry triggers minimize anim. |
| mView.setMinimizedDockStack(false /* minimized */, mHomeStackResizable); |
| } |
| // Notify existence listeners |
| synchronized (mDockedStackExistsListeners) { |
| mDockedStackExistsListeners.removeIf(wf -> { |
| Consumer<Boolean> l = wf.get(); |
| if (l != null) l.accept(visible); |
| return l == null; |
| }); |
| } |
| } |
| } |
| |
| private void setHomeStackResizable(boolean resizable) { |
| if (mHomeStackResizable == resizable) { |
| return; |
| } |
| mHomeStackResizable = resizable; |
| if (!inSplitMode()) { |
| return; |
| } |
| WindowManagerProxy.applyHomeTasksMinimized(mSplitLayout, mSplits.mSecondary.token); |
| } |
| |
| private void updateMinimizedDockedStack(final boolean minimized, final long animDuration, |
| final boolean isHomeStackResizable) { |
| setHomeStackResizable(isHomeStackResizable); |
| if (animDuration > 0) { |
| mView.setMinimizedDockStack(minimized, animDuration, isHomeStackResizable); |
| } else { |
| mView.setMinimizedDockStack(minimized, isHomeStackResizable); |
| } |
| updateTouchable(); |
| } |
| |
| /** Switch to minimized state if appropriate */ |
| public void setMinimized(final boolean minimized) { |
| mHandler.post(() -> { |
| if (!inSplitMode()) { |
| return; |
| } |
| if (mMinimized == minimized) { |
| return; |
| } |
| mMinimized = minimized; |
| WindowManagerProxy.applyPrimaryFocusable(mSplits, !mMinimized); |
| mView.setMinimizedDockStack(minimized, getAnimDuration(), mHomeStackResizable); |
| updateTouchable(); |
| }); |
| } |
| |
| void setAdjustedForIme(boolean adjustedForIme) { |
| if (mAdjustedForIme == adjustedForIme) { |
| return; |
| } |
| mAdjustedForIme = adjustedForIme; |
| updateTouchable(); |
| } |
| |
| private void updateTouchable() { |
| mWindowManager.setTouchable((mHomeStackResizable || !mMinimized) && !mAdjustedForIme); |
| } |
| |
| /** |
| * Workaround for b/62528361, at the time recents has drawn, it may happen before a |
| * configuration change to the Divider, and internally, the event will be posted to the |
| * subscriber, or DividerView, which has been removed and prevented from resizing. Instead, |
| * register the event handler here and proxy the event to the current DividerView. |
| */ |
| public void onRecentsDrawn() { |
| if (mView != null) { |
| mView.onRecentsDrawn(); |
| } |
| } |
| |
| public void onUndockingTask() { |
| if (mView != null) { |
| mView.onUndockingTask(); |
| } |
| } |
| |
| public void onDockedFirstAnimationFrame() { |
| if (mView != null) { |
| mView.onDockedFirstAnimationFrame(); |
| } |
| } |
| |
| public void onDockedTopTask() { |
| if (mView != null) { |
| mView.onDockedTopTask(); |
| } |
| } |
| |
| public void onAppTransitionFinished() { |
| if (mView == null) { |
| return; |
| } |
| mForcedResizableController.onAppTransitionFinished(); |
| } |
| |
| @Override |
| public void onDraggingStart() { |
| mForcedResizableController.onDraggingStart(); |
| } |
| |
| @Override |
| public void onDraggingEnd() { |
| mForcedResizableController.onDraggingEnd(); |
| } |
| |
| @Override |
| public void growRecents() { |
| mRecentsOptionalLazy.ifPresent(recentsLazy -> recentsLazy.get().growRecents()); |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.print(" mVisible="); pw.println(mVisible); |
| pw.print(" mMinimized="); pw.println(mMinimized); |
| pw.print(" mAdjustedForIme="); pw.println(mAdjustedForIme); |
| } |
| |
| long getAnimDuration() { |
| float transitionScale = Settings.Global.getFloat(mContext.getContentResolver(), |
| Settings.Global.TRANSITION_ANIMATION_SCALE, |
| mContext.getResources().getFloat( |
| com.android.internal.R.dimen |
| .config_appTransitionAnimationDurationScaleDefault)); |
| final long transitionDuration = DEFAULT_APP_TRANSITION_DURATION; |
| return (long) (transitionDuration * transitionScale); |
| } |
| |
| /** Register a listener that gets called whenever the existence of the divider changes */ |
| public void registerInSplitScreenListener(Consumer<Boolean> listener) { |
| listener.accept(inSplitMode()); |
| synchronized (mDockedStackExistsListeners) { |
| mDockedStackExistsListeners.add(new WeakReference<>(listener)); |
| } |
| } |
| |
| void startEnterSplit() { |
| // Set resizable directly here because applyEnterSplit already resizes home stack. |
| mHomeStackResizable = WindowManagerProxy.applyEnterSplit(mSplits, mSplitLayout); |
| } |
| |
| void ensureMinimizedSplit() { |
| final boolean wasMinimized = mMinimized; |
| mMinimized = true; |
| setHomeStackResizable(mSplits.mSecondary.isResizable()); |
| WindowManagerProxy.applyPrimaryFocusable(mSplits, false /* focusable */); |
| if (!inSplitMode()) { |
| // Wasn't in split-mode yet, so enter now. |
| if (DEBUG) { |
| Log.d(TAG, " entering split mode with minimized=true"); |
| } |
| updateVisibility(true /* visible */); |
| } else if (!wasMinimized) { |
| if (DEBUG) { |
| Log.d(TAG, " in split mode, but minimizing "); |
| } |
| // Was already in split-mode, update just minimized state. |
| updateMinimizedDockedStack(mMinimized, getAnimDuration(), |
| mHomeStackResizable); |
| } |
| } |
| |
| void ensureNormalSplit() { |
| if (mMinimized) { |
| WindowManagerProxy.applyPrimaryFocusable(mSplits, true /* focusable */); |
| } |
| if (!inSplitMode()) { |
| // Wasn't in split-mode, so enter now. |
| if (DEBUG) { |
| Log.d(TAG, " enter split mode unminimized "); |
| } |
| mMinimized = false; |
| updateVisibility(true /* visible */); |
| } |
| if (mMinimized) { |
| // Was in minimized state, so leave that. |
| if (DEBUG) { |
| Log.d(TAG, " in split mode already, but unminimizing "); |
| } |
| mMinimized = false; |
| updateMinimizedDockedStack(mMinimized, getAnimDuration(), |
| mHomeStackResizable); |
| } |
| } |
| } |