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/*
* Copyright (C) 2016 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.server.wm;
import static android.os.Trace.TRACE_TAG_WINDOW_MANAGER;
import static android.view.Display.DEFAULT_DISPLAY;
import static android.view.Display.INVALID_DISPLAY;
import static android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD;
import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_SUSTAINED_PERFORMANCE_MODE;
import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
import static android.view.WindowManager.LayoutParams.TYPE_DREAM;
import static android.view.WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG;
import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_LAYOUT;
import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
import static com.android.server.wm.RootWindowContainerProto.DISPLAYS;
import static com.android.server.wm.RootWindowContainerProto.WINDOWS;
import static com.android.server.wm.RootWindowContainerProto.WINDOW_CONTAINER;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_DISPLAY;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_FOCUS_LIGHT;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_KEEP_SCREEN_ON;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYOUT_REPEATS;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ORIENTATION;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_TRACE;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_LIGHT_TRANSACTIONS;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_SURFACE_ALLOC;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_KEEP_SCREEN_ON;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
import static com.android.server.wm.WindowManagerService.H.WINDOW_FREEZE_TIMEOUT;
import static com.android.server.wm.WindowManagerService.UPDATE_FOCUS_NORMAL;
import static com.android.server.wm.WindowManagerService.UPDATE_FOCUS_PLACING_SURFACES;
import static com.android.server.wm.WindowManagerService.UPDATE_FOCUS_WILL_PLACE_SURFACES;
import static com.android.server.wm.WindowManagerService.WINDOWS_FREEZING_SCREENS_NONE;
import static com.android.server.wm.WindowManagerService.logSurface;
import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
import static com.android.server.wm.WindowSurfacePlacer.SET_UPDATE_ROTATION;
import static com.android.server.wm.WindowSurfacePlacer.SET_WALLPAPER_ACTION_PENDING;
import android.annotation.CallSuper;
import android.annotation.NonNull;
import android.content.res.Configuration;
import android.hardware.power.V1_0.PowerHint;
import android.os.Binder;
import android.os.Debug;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.Trace;
import android.os.UserHandle;
import android.util.ArraySet;
import android.util.EventLog;
import android.util.Slog;
import android.util.SparseIntArray;
import android.util.proto.ProtoOutputStream;
import android.view.Display;
import android.view.DisplayInfo;
import android.view.SurfaceControl;
import android.view.WindowManager;
import com.android.server.EventLogTags;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.function.Consumer;
/** Root {@link WindowContainer} for the device. */
class RootWindowContainer extends WindowContainer<DisplayContent>
implements ConfigurationContainerListener {
private static final String TAG = TAG_WITH_CLASS_NAME ? "RootWindowContainer" : TAG_WM;
private static final int SET_SCREEN_BRIGHTNESS_OVERRIDE = 1;
private static final int SET_USER_ACTIVITY_TIMEOUT = 2;
// TODO: Remove after object merge with RootActivityContainer.
private RootActivityContainer mRootActivityContainer;
private Object mLastWindowFreezeSource = null;
private Session mHoldScreen = null;
private float mScreenBrightness = -1;
private long mUserActivityTimeout = -1;
private boolean mUpdateRotation = false;
// Following variables are for debugging screen wakelock only.
// Last window that requires screen wakelock
WindowState mHoldScreenWindow = null;
// Last window that obscures all windows below
WindowState mObscuringWindow = null;
// Only set while traversing the default display based on its content.
// Affects the behavior of mirroring on secondary displays.
private boolean mObscureApplicationContentOnSecondaryDisplays = false;
private boolean mSustainedPerformanceModeEnabled = false;
private boolean mSustainedPerformanceModeCurrent = false;
// During an orientation change, we track whether all windows have rendered
// at the new orientation, and this will be false from changing orientation until that occurs.
// For seamless rotation cases this always stays true, as the windows complete their orientation
// changes 1 by 1 without disturbing global state.
boolean mOrientationChangeComplete = true;
boolean mWallpaperActionPending = false;
private final Handler mHandler;
private String mCloseSystemDialogsReason;
// The ID of the display which is responsible for receiving display-unspecified key and pointer
// events.
private int mTopFocusedDisplayId = INVALID_DISPLAY;
// Map from the PID to the top most app which has a focused window of the process.
final HashMap<Integer, AppWindowToken> mTopFocusedAppByProcess = new HashMap<>();
// Only a separate transaction until we separate the apply surface changes
// transaction from the global transaction.
private final SurfaceControl.Transaction mDisplayTransaction = new SurfaceControl.Transaction();
private final Consumer<WindowState> mCloseSystemDialogsConsumer = w -> {
if (w.mHasSurface) {
try {
w.mClient.closeSystemDialogs(mCloseSystemDialogsReason);
} catch (RemoteException e) {
}
}
};
private static final Consumer<WindowState> sRemoveReplacedWindowsConsumer = w -> {
final AppWindowToken aToken = w.mAppToken;
if (aToken != null) {
aToken.removeReplacedWindowIfNeeded(w);
}
};
RootWindowContainer(WindowManagerService service) {
super(service);
mHandler = new MyHandler(service.mH.getLooper());
}
void setRootActivityContainer(RootActivityContainer container) {
mRootActivityContainer = container;
if (container != null) {
container.registerConfigurationChangeListener(this);
}
}
boolean updateFocusedWindowLocked(int mode, boolean updateInputWindows) {
mTopFocusedAppByProcess.clear();
boolean changed = false;
int topFocusedDisplayId = INVALID_DISPLAY;
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent dc = mChildren.get(i);
changed |= dc.updateFocusedWindowLocked(mode, updateInputWindows, topFocusedDisplayId);
final WindowState newFocus = dc.mCurrentFocus;
if (newFocus != null) {
final int pidOfNewFocus = newFocus.mSession.mPid;
if (mTopFocusedAppByProcess.get(pidOfNewFocus) == null) {
mTopFocusedAppByProcess.put(pidOfNewFocus, newFocus.mAppToken);
}
if (topFocusedDisplayId == INVALID_DISPLAY) {
topFocusedDisplayId = dc.getDisplayId();
}
} else if (topFocusedDisplayId == INVALID_DISPLAY && dc.mFocusedApp != null) {
// The top-most display that has a focused app should still be the top focused
// display even when the app window is not ready yet (process not attached or
// window not added yet).
topFocusedDisplayId = dc.getDisplayId();
}
}
if (topFocusedDisplayId == INVALID_DISPLAY) {
topFocusedDisplayId = DEFAULT_DISPLAY;
}
if (mTopFocusedDisplayId != topFocusedDisplayId) {
mTopFocusedDisplayId = topFocusedDisplayId;
mWmService.mInputManager.setFocusedDisplay(topFocusedDisplayId);
mWmService.mPolicy.setTopFocusedDisplay(topFocusedDisplayId);
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM, "New topFocusedDisplayId="
+ topFocusedDisplayId);
}
return changed;
}
DisplayContent getTopFocusedDisplayContent() {
final DisplayContent dc = getDisplayContent(mTopFocusedDisplayId);
return dc != null ? dc : getDisplayContent(DEFAULT_DISPLAY);
}
@Override
void onChildPositionChanged() {
mWmService.updateFocusedWindowLocked(UPDATE_FOCUS_NORMAL,
!mWmService.mPerDisplayFocusEnabled /* updateInputWindows */);
}
DisplayContent getDisplayContent(int displayId) {
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent current = mChildren.get(i);
if (current.getDisplayId() == displayId) {
return current;
}
}
return null;
}
DisplayContent createDisplayContent(final Display display, ActivityDisplay activityDisplay) {
final int displayId = display.getDisplayId();
// In select scenarios, it is possible that a DisplayContent will be created on demand
// rather than waiting for the controller. In this case, associate the controller and return
// the existing display.
final DisplayContent existing = getDisplayContent(displayId);
if (existing != null) {
existing.mAcitvityDisplay = activityDisplay;
existing.initializeDisplayOverrideConfiguration();
return existing;
}
final DisplayContent dc = new DisplayContent(display, mWmService, activityDisplay);
if (DEBUG_DISPLAY) Slog.v(TAG_WM, "Adding display=" + display);
mWmService.mDisplayWindowSettings.applySettingsToDisplayLocked(dc);
dc.initializeDisplayOverrideConfiguration();
if (mWmService.mDisplayManagerInternal != null) {
mWmService.mDisplayManagerInternal.setDisplayInfoOverrideFromWindowManager(
displayId, dc.getDisplayInfo());
dc.configureDisplayPolicy();
}
mWmService.reconfigureDisplayLocked(dc);
return dc;
}
/**
* Called when DisplayWindowSettings values may change.
*/
void onSettingsRetrieved() {
final int numDisplays = mChildren.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
final boolean changed = mWmService.mDisplayWindowSettings.updateSettingsForDisplay(
displayContent);
if (!changed) {
continue;
}
displayContent.initializeDisplayOverrideConfiguration();
mWmService.reconfigureDisplayLocked(displayContent);
// We need to update global configuration as well if config of default display has
// changed. Do it inline because ATMS#retrieveSettings() will soon update the
// configuration inline, which will overwrite the new windowing mode.
if (displayContent.isDefaultDisplay) {
final Configuration newConfig = mWmService.computeNewConfiguration(
displayContent.getDisplayId());
mWmService.mAtmService.updateConfigurationLocked(newConfig, null /* starting */,
false /* initLocale */);
}
}
}
boolean isLayoutNeeded() {
final int numDisplays = mChildren.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
if (displayContent.isLayoutNeeded()) {
return true;
}
}
return false;
}
void getWindowsByName(ArrayList<WindowState> output, String name) {
int objectId = 0;
// See if this is an object ID.
try {
objectId = Integer.parseInt(name, 16);
name = null;
} catch (RuntimeException e) {
}
getWindowsByName(output, name, objectId);
}
private void getWindowsByName(ArrayList<WindowState> output, String name, int objectId) {
forAllWindows((w) -> {
if (name != null) {
if (w.mAttrs.getTitle().toString().contains(name)) {
output.add(w);
}
} else if (System.identityHashCode(w) == objectId) {
output.add(w);
}
}, true /* traverseTopToBottom */);
}
/**
* Returns true if the callingUid has any non-toast window currently visible to the user.
* Also ignores TYPE_APPLICATION_STARTING, since those windows don't belong to apps.
*/
boolean isAnyNonToastWindowVisibleForUid(int callingUid) {
return forAllWindows(w ->
w.getOwningUid() == callingUid && w.mAttrs.type != TYPE_TOAST
&& w.mAttrs.type != TYPE_APPLICATION_STARTING && w.isVisibleNow(),
true /* traverseTopToBottom */);
}
/**
* Returns the app window token for the input binder if it exist in the system.
* NOTE: Only one AppWindowToken is allowed to exist in the system for a binder token, since
* AppWindowToken represents an activity which can only exist on one display.
*/
AppWindowToken getAppWindowToken(IBinder binder) {
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent dc = mChildren.get(i);
final AppWindowToken atoken = dc.getAppWindowToken(binder);
if (atoken != null) {
return atoken;
}
}
return null;
}
/** Returns the window token for the input binder if it exist in the system. */
WindowToken getWindowToken(IBinder binder) {
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent dc = mChildren.get(i);
final WindowToken wtoken = dc.getWindowToken(binder);
if (wtoken != null) {
return wtoken;
}
}
return null;
}
/** Returns the display object the input window token is currently mapped on. */
DisplayContent getWindowTokenDisplay(WindowToken token) {
if (token == null) {
return null;
}
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent dc = mChildren.get(i);
final WindowToken current = dc.getWindowToken(token.token);
if (current == token) {
return dc;
}
}
return null;
}
/**
* Set new display override config. If called for the default display, global configuration
* will also be updated.
*/
void setDisplayOverrideConfigurationIfNeeded(Configuration newConfiguration,
@NonNull DisplayContent displayContent) {
final Configuration currentConfig = displayContent.getRequestedOverrideConfiguration();
final boolean configChanged = currentConfig.diff(newConfiguration) != 0;
if (!configChanged) {
return;
}
displayContent.onRequestedOverrideConfigurationChanged(newConfiguration);
if (displayContent.getDisplayId() == DEFAULT_DISPLAY) {
// Override configuration of the default display duplicates global config. In this case
// we also want to update the global config.
setGlobalConfigurationIfNeeded(newConfiguration);
}
}
private void setGlobalConfigurationIfNeeded(Configuration newConfiguration) {
final boolean configChanged = getConfiguration().diff(newConfiguration) != 0;
if (!configChanged) {
return;
}
onConfigurationChanged(newConfiguration);
}
@Override
public void onConfigurationChanged(Configuration newParentConfig) {
prepareFreezingTaskBounds();
super.onConfigurationChanged(newParentConfig);
}
private void prepareFreezingTaskBounds() {
for (int i = mChildren.size() - 1; i >= 0; i--) {
mChildren.get(i).prepareFreezingTaskBounds();
}
}
TaskStack getStack(int windowingMode, int activityType) {
for (int i = mChildren.size() - 1; i >= 0; i--) {
final DisplayContent dc = mChildren.get(i);
final TaskStack stack = dc.getStack(windowingMode, activityType);
if (stack != null) {
return stack;
}
}
return null;
}
void setSecureSurfaceState(int userId, boolean disabled) {
forAllWindows((w) -> {
if (w.mHasSurface && userId == UserHandle.getUserId(w.mOwnerUid)) {
w.mWinAnimator.setSecureLocked(disabled);
}
}, true /* traverseTopToBottom */);
}
void updateHiddenWhileSuspendedState(final ArraySet<String> packages, final boolean suspended) {
forAllWindows((w) -> {
if (packages.contains(w.getOwningPackage())) {
w.setHiddenWhileSuspended(suspended);
}
}, false);
}
void updateAppOpsState() {
forAllWindows((w) -> {
w.updateAppOpsState();
}, false /* traverseTopToBottom */);
}
boolean canShowStrictModeViolation(int pid) {
final WindowState win = getWindow((w) -> w.mSession.mPid == pid && w.isVisibleLw());
return win != null;
}
void closeSystemDialogs(String reason) {
mCloseSystemDialogsReason = reason;
forAllWindows(mCloseSystemDialogsConsumer, false /* traverseTopToBottom */);
}
void removeReplacedWindows() {
if (SHOW_TRANSACTIONS) Slog.i(TAG, ">>> OPEN TRANSACTION removeReplacedWindows");
mWmService.openSurfaceTransaction();
try {
forAllWindows(sRemoveReplacedWindowsConsumer, true /* traverseTopToBottom */);
} finally {
mWmService.closeSurfaceTransaction("removeReplacedWindows");
if (SHOW_TRANSACTIONS) Slog.i(TAG, "<<< CLOSE TRANSACTION removeReplacedWindows");
}
}
boolean hasPendingLayoutChanges(WindowAnimator animator) {
boolean hasChanges = false;
final int count = mChildren.size();
for (int i = 0; i < count; ++i) {
final DisplayContent dc = mChildren.get(i);
final int pendingChanges = animator.getPendingLayoutChanges(dc.getDisplayId());
if ((pendingChanges & FINISH_LAYOUT_REDO_WALLPAPER) != 0) {
animator.mBulkUpdateParams |= SET_WALLPAPER_ACTION_PENDING;
}
if (pendingChanges != 0) {
hasChanges = true;
}
}
return hasChanges;
}
boolean reclaimSomeSurfaceMemory(WindowStateAnimator winAnimator, String operation,
boolean secure) {
final WindowSurfaceController surfaceController = winAnimator.mSurfaceController;
boolean leakedSurface = false;
boolean killedApps = false;
EventLog.writeEvent(EventLogTags.WM_NO_SURFACE_MEMORY, winAnimator.mWin.toString(),
winAnimator.mSession.mPid, operation);
final long callingIdentity = Binder.clearCallingIdentity();
try {
// There was some problem...first, do a sanity check of the window list to make sure
// we haven't left any dangling surfaces around.
Slog.i(TAG_WM, "Out of memory for surface! Looking for leaks...");
final int numDisplays = mChildren.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
leakedSurface |= mChildren.get(displayNdx).destroyLeakedSurfaces();
}
if (!leakedSurface) {
Slog.w(TAG_WM, "No leaked surfaces; killing applications!");
final SparseIntArray pidCandidates = new SparseIntArray();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
mChildren.get(displayNdx).forAllWindows((w) -> {
if (mWmService.mForceRemoves.contains(w)) {
return;
}
final WindowStateAnimator wsa = w.mWinAnimator;
if (wsa.mSurfaceController != null) {
pidCandidates.append(wsa.mSession.mPid, wsa.mSession.mPid);
}
}, false /* traverseTopToBottom */);
if (pidCandidates.size() > 0) {
int[] pids = new int[pidCandidates.size()];
for (int i = 0; i < pids.length; i++) {
pids[i] = pidCandidates.keyAt(i);
}
try {
if (mWmService.mActivityManager.killPids(pids, "Free memory", secure)) {
killedApps = true;
}
} catch (RemoteException e) {
}
}
}
}
if (leakedSurface || killedApps) {
// We managed to reclaim some memory, so get rid of the trouble surface and ask the
// app to request another one.
Slog.w(TAG_WM,
"Looks like we have reclaimed some memory, clearing surface for retry.");
if (surfaceController != null) {
if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) logSurface(winAnimator.mWin,
"RECOVER DESTROY", false);
winAnimator.destroySurface();
if (winAnimator.mWin.mAppToken != null) {
winAnimator.mWin.mAppToken.removeStartingWindow();
}
}
try {
winAnimator.mWin.mClient.dispatchGetNewSurface();
} catch (RemoteException e) {
}
}
} finally {
Binder.restoreCallingIdentity(callingIdentity);
}
return leakedSurface || killedApps;
}
void performSurfacePlacement(boolean recoveringMemory) {
Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "performSurfacePlacement");
try {
performSurfacePlacementNoTrace(recoveringMemory);
} finally {
Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
}
}
// "Something has changed! Let's make it correct now."
// TODO: Super crazy long method that should be broken down...
void performSurfacePlacementNoTrace(boolean recoveringMemory) {
if (DEBUG_WINDOW_TRACE) Slog.v(TAG, "performSurfacePlacementInner: entry. Called by "
+ Debug.getCallers(3));
int i;
if (mWmService.mFocusMayChange) {
mWmService.mFocusMayChange = false;
mWmService.updateFocusedWindowLocked(
UPDATE_FOCUS_WILL_PLACE_SURFACES, false /*updateInputWindows*/);
}
// Initialize state of exiting tokens.
final int numDisplays = mChildren.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
displayContent.setExitingTokensHasVisible(false);
}
mHoldScreen = null;
mScreenBrightness = -1;
mUserActivityTimeout = -1;
mObscureApplicationContentOnSecondaryDisplays = false;
mSustainedPerformanceModeCurrent = false;
mWmService.mTransactionSequence++;
// TODO(multi-display): recents animation & wallpaper need support multi-display.
final DisplayContent defaultDisplay = mWmService.getDefaultDisplayContentLocked();
final WindowSurfacePlacer surfacePlacer = mWmService.mWindowPlacerLocked;
if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
">>> OPEN TRANSACTION performLayoutAndPlaceSurfaces");
Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "applySurfaceChanges");
mWmService.openSurfaceTransaction();
try {
applySurfaceChangesTransaction(recoveringMemory);
} catch (RuntimeException e) {
Slog.wtf(TAG, "Unhandled exception in Window Manager", e);
} finally {
mWmService.closeSurfaceTransaction("performLayoutAndPlaceSurfaces");
Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
"<<< CLOSE TRANSACTION performLayoutAndPlaceSurfaces");
}
mWmService.mAnimator.executeAfterPrepareSurfacesRunnables();
checkAppTransitionReady(surfacePlacer);
// Defer starting the recents animation until the wallpaper has drawn
final RecentsAnimationController recentsAnimationController =
mWmService.getRecentsAnimationController();
if (recentsAnimationController != null) {
recentsAnimationController.checkAnimationReady(defaultDisplay.mWallpaperController);
}
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
if (displayContent.mWallpaperMayChange) {
if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "Wallpaper may change! Adjusting");
displayContent.pendingLayoutChanges |= FINISH_LAYOUT_REDO_WALLPAPER;
if (DEBUG_LAYOUT_REPEATS) {
surfacePlacer.debugLayoutRepeats("WallpaperMayChange",
displayContent.pendingLayoutChanges);
}
}
}
if (mWmService.mFocusMayChange) {
mWmService.mFocusMayChange = false;
mWmService.updateFocusedWindowLocked(UPDATE_FOCUS_PLACING_SURFACES,
false /*updateInputWindows*/);
}
if (isLayoutNeeded()) {
defaultDisplay.pendingLayoutChanges |= FINISH_LAYOUT_REDO_LAYOUT;
if (DEBUG_LAYOUT_REPEATS) surfacePlacer.debugLayoutRepeats("mLayoutNeeded",
defaultDisplay.pendingLayoutChanges);
}
handleResizingWindows();
if (DEBUG_ORIENTATION && mWmService.mDisplayFrozen) Slog.v(TAG,
"With display frozen, orientationChangeComplete=" + mOrientationChangeComplete);
if (mOrientationChangeComplete) {
if (mWmService.mWindowsFreezingScreen != WINDOWS_FREEZING_SCREENS_NONE) {
mWmService.mWindowsFreezingScreen = WINDOWS_FREEZING_SCREENS_NONE;
mWmService.mLastFinishedFreezeSource = mLastWindowFreezeSource;
mWmService.mH.removeMessages(WINDOW_FREEZE_TIMEOUT);
}
mWmService.stopFreezingDisplayLocked();
}
// Destroy the surface of any windows that are no longer visible.
i = mWmService.mDestroySurface.size();
if (i > 0) {
do {
i--;
WindowState win = mWmService.mDestroySurface.get(i);
win.mDestroying = false;
final DisplayContent displayContent = win.getDisplayContent();
if (displayContent.mInputMethodWindow == win) {
displayContent.setInputMethodWindowLocked(null);
}
if (displayContent.mWallpaperController.isWallpaperTarget(win)) {
displayContent.pendingLayoutChanges |= FINISH_LAYOUT_REDO_WALLPAPER;
}
win.destroySurfaceUnchecked();
win.mWinAnimator.destroyPreservedSurfaceLocked();
} while (i > 0);
mWmService.mDestroySurface.clear();
}
// Time to remove any exiting tokens?
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
displayContent.removeExistingTokensIfPossible();
}
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
if (displayContent.pendingLayoutChanges != 0) {
displayContent.setLayoutNeeded();
}
}
mWmService.setHoldScreenLocked(mHoldScreen);
if (!mWmService.mDisplayFrozen) {
final int brightness = mScreenBrightness < 0 || mScreenBrightness > 1.0f
? -1 : toBrightnessOverride(mScreenBrightness);
// Post these on a handler such that we don't call into power manager service while
// holding the window manager lock to avoid lock contention with power manager lock.
mHandler.obtainMessage(SET_SCREEN_BRIGHTNESS_OVERRIDE, brightness, 0).sendToTarget();
mHandler.obtainMessage(SET_USER_ACTIVITY_TIMEOUT, mUserActivityTimeout).sendToTarget();
}
if (mSustainedPerformanceModeCurrent != mSustainedPerformanceModeEnabled) {
mSustainedPerformanceModeEnabled = mSustainedPerformanceModeCurrent;
mWmService.mPowerManagerInternal.powerHint(
PowerHint.SUSTAINED_PERFORMANCE,
(mSustainedPerformanceModeEnabled ? 1 : 0));
}
if (mUpdateRotation) {
if (DEBUG_ORIENTATION) Slog.d(TAG, "Performing post-rotate rotation");
mUpdateRotation = updateRotationUnchecked();
}
if (mWmService.mWaitingForDrawnCallback != null
|| (mOrientationChangeComplete && !isLayoutNeeded()
&& !mUpdateRotation)) {
mWmService.checkDrawnWindowsLocked();
}
final int N = mWmService.mPendingRemove.size();
if (N > 0) {
if (mWmService.mPendingRemoveTmp.length < N) {
mWmService.mPendingRemoveTmp = new WindowState[N + 10];
}
mWmService.mPendingRemove.toArray(mWmService.mPendingRemoveTmp);
mWmService.mPendingRemove.clear();
ArrayList<DisplayContent> displayList = new ArrayList();
for (i = 0; i < N; i++) {
final WindowState w = mWmService.mPendingRemoveTmp[i];
w.removeImmediately();
final DisplayContent displayContent = w.getDisplayContent();
if (displayContent != null && !displayList.contains(displayContent)) {
displayList.add(displayContent);
}
}
for (int j = displayList.size() - 1; j >= 0; --j) {
final DisplayContent dc = displayList.get(j);
dc.assignWindowLayers(true /*setLayoutNeeded*/);
}
}
// Remove all deferred displays stacks, tasks, and activities.
for (int displayNdx = mChildren.size() - 1; displayNdx >= 0; --displayNdx) {
mChildren.get(displayNdx).checkCompleteDeferredRemoval();
}
forAllDisplays(dc -> {
dc.getInputMonitor().updateInputWindowsLw(true /*force*/);
dc.updateSystemGestureExclusion();
dc.updateTouchExcludeRegion();
});
// Check to see if we are now in a state where the screen should
// be enabled, because the window obscured flags have changed.
mWmService.enableScreenIfNeededLocked();
mWmService.scheduleAnimationLocked();
if (DEBUG_WINDOW_TRACE) Slog.e(TAG,
"performSurfacePlacementInner exit: animating="
+ mWmService.mAnimator.isAnimating());
}
private void checkAppTransitionReady(WindowSurfacePlacer surfacePlacer) {
// Trace all displays app transition by Z-order for pending layout change.
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent curDisplay = mChildren.get(i);
// If we are ready to perform an app transition, check through all of the app tokens
// to be shown and see if they are ready to go.
if (curDisplay.mAppTransition.isReady()) {
// handleAppTransitionReady may modify curDisplay.pendingLayoutChanges.
curDisplay.mAppTransitionController.handleAppTransitionReady();
if (DEBUG_LAYOUT_REPEATS) {
surfacePlacer.debugLayoutRepeats("after handleAppTransitionReady",
curDisplay.pendingLayoutChanges);
}
}
if (curDisplay.mAppTransition.isRunning() && !curDisplay.isAppAnimating()) {
// We have finished the animation of an app transition. To do this, we have
// delayed a lot of operations like showing and hiding apps, moving apps in
// Z-order, etc.
// The app token list reflects the correct Z-order, but the window list may now
// be out of sync with it. So here we will just rebuild the entire app window
// list. Fun!
curDisplay.handleAnimatingStoppedAndTransition();
if (DEBUG_LAYOUT_REPEATS) {
surfacePlacer.debugLayoutRepeats("after handleAnimStopAndXitionLock",
curDisplay.pendingLayoutChanges);
}
}
}
}
private void applySurfaceChangesTransaction(boolean recoveringMemory) {
mHoldScreenWindow = null;
mObscuringWindow = null;
// TODO(multi-display): Support these features on secondary screens.
final DisplayContent defaultDc = mWmService.getDefaultDisplayContentLocked();
final DisplayInfo defaultInfo = defaultDc.getDisplayInfo();
final int defaultDw = defaultInfo.logicalWidth;
final int defaultDh = defaultInfo.logicalHeight;
if (mWmService.mWatermark != null) {
mWmService.mWatermark.positionSurface(defaultDw, defaultDh);
}
if (mWmService.mStrictModeFlash != null) {
mWmService.mStrictModeFlash.positionSurface(defaultDw, defaultDh);
}
if (mWmService.mCircularDisplayMask != null) {
mWmService.mCircularDisplayMask.positionSurface(defaultDw, defaultDh,
mWmService.getDefaultDisplayRotation());
}
if (mWmService.mEmulatorDisplayOverlay != null) {
mWmService.mEmulatorDisplayOverlay.positionSurface(defaultDw, defaultDh,
mWmService.getDefaultDisplayRotation());
}
final int count = mChildren.size();
for (int j = 0; j < count; ++j) {
final DisplayContent dc = mChildren.get(j);
dc.applySurfaceChangesTransaction(recoveringMemory);
}
// Give the display manager a chance to adjust properties like display rotation if it needs
// to.
mWmService.mDisplayManagerInternal.performTraversal(mDisplayTransaction);
SurfaceControl.mergeToGlobalTransaction(mDisplayTransaction);
}
/**
* Handles resizing windows during surface placement.
*/
private void handleResizingWindows() {
for (int i = mWmService.mResizingWindows.size() - 1; i >= 0; i--) {
WindowState win = mWmService.mResizingWindows.get(i);
if (win.mAppFreezing || win.getDisplayContent().mWaitingForConfig) {
// Don't remove this window until rotation has completed and is not waiting for the
// complete configuration.
continue;
}
win.reportResized();
mWmService.mResizingWindows.remove(i);
}
}
/**
* @param w WindowState this method is applied to.
* @param obscured True if there is a window on top of this obscuring the display.
* @param syswin System window?
* @return True when the display contains content to show the user. When false, the display
* manager may choose to mirror or blank the display.
*/
boolean handleNotObscuredLocked(WindowState w, boolean obscured, boolean syswin) {
final WindowManager.LayoutParams attrs = w.mAttrs;
final int attrFlags = attrs.flags;
final boolean onScreen = w.isOnScreen();
final boolean canBeSeen = w.isDisplayedLw();
final int privateflags = attrs.privateFlags;
boolean displayHasContent = false;
if (DEBUG_KEEP_SCREEN_ON) {
Slog.d(TAG_KEEP_SCREEN_ON, "handleNotObscuredLocked w: " + w
+ ", w.mHasSurface: " + w.mHasSurface
+ ", w.isOnScreen(): " + onScreen
+ ", w.isDisplayedLw(): " + w.isDisplayedLw()
+ ", w.mAttrs.userActivityTimeout: " + w.mAttrs.userActivityTimeout);
}
if (w.mHasSurface && onScreen) {
if (!syswin && w.mAttrs.userActivityTimeout >= 0 && mUserActivityTimeout < 0) {
mUserActivityTimeout = w.mAttrs.userActivityTimeout;
if (DEBUG_KEEP_SCREEN_ON) {
Slog.d(TAG, "mUserActivityTimeout set to " + mUserActivityTimeout);
}
}
}
if (w.mHasSurface && canBeSeen) {
if ((attrFlags & FLAG_KEEP_SCREEN_ON) != 0) {
mHoldScreen = w.mSession;
mHoldScreenWindow = w;
} else if (DEBUG_KEEP_SCREEN_ON && w == mWmService.mLastWakeLockHoldingWindow) {
Slog.d(TAG_KEEP_SCREEN_ON, "handleNotObscuredLocked: " + w + " was holding "
+ "screen wakelock but no longer has FLAG_KEEP_SCREEN_ON!!! called by"
+ Debug.getCallers(10));
}
if (!syswin && w.mAttrs.screenBrightness >= 0 && mScreenBrightness < 0) {
mScreenBrightness = w.mAttrs.screenBrightness;
}
final int type = attrs.type;
// This function assumes that the contents of the default display are processed first
// before secondary displays.
final DisplayContent displayContent = w.getDisplayContent();
if (displayContent != null && displayContent.isDefaultDisplay) {
// While a dream or keyguard is showing, obscure ordinary application content on
// secondary displays (by forcibly enabling mirroring unless there is other content
// we want to show) but still allow opaque keyguard dialogs to be shown.
if (type == TYPE_DREAM || (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
mObscureApplicationContentOnSecondaryDisplays = true;
}
displayHasContent = true;
} else if (displayContent != null &&
(!mObscureApplicationContentOnSecondaryDisplays
|| (obscured && type == TYPE_KEYGUARD_DIALOG))) {
// Allow full screen keyguard presentation dialogs to be seen.
displayHasContent = true;
}
if ((privateflags & PRIVATE_FLAG_SUSTAINED_PERFORMANCE_MODE) != 0) {
mSustainedPerformanceModeCurrent = true;
}
}
return displayHasContent;
}
boolean updateRotationUnchecked() {
boolean changed = false;
for (int i = mChildren.size() - 1; i >= 0; i--) {
final DisplayContent displayContent = mChildren.get(i);
if (displayContent.updateRotationAndSendNewConfigIfNeeded()) {
changed = true;
}
}
return changed;
}
boolean copyAnimToLayoutParams() {
boolean doRequest = false;
final int bulkUpdateParams = mWmService.mAnimator.mBulkUpdateParams;
if ((bulkUpdateParams & SET_UPDATE_ROTATION) != 0) {
mUpdateRotation = true;
doRequest = true;
}
if ((bulkUpdateParams & SET_ORIENTATION_CHANGE_COMPLETE) == 0) {
mOrientationChangeComplete = false;
} else {
mOrientationChangeComplete = true;
mLastWindowFreezeSource = mWmService.mAnimator.mLastWindowFreezeSource;
if (mWmService.mWindowsFreezingScreen != WINDOWS_FREEZING_SCREENS_NONE) {
doRequest = true;
}
}
if ((bulkUpdateParams & SET_WALLPAPER_ACTION_PENDING) != 0) {
mWallpaperActionPending = true;
}
return doRequest;
}
private static int toBrightnessOverride(float value) {
return (int)(value * PowerManager.BRIGHTNESS_ON);
}
private final class MyHandler extends Handler {
public MyHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case SET_SCREEN_BRIGHTNESS_OVERRIDE:
mWmService.mPowerManagerInternal.setScreenBrightnessOverrideFromWindowManager(
msg.arg1);
break;
case SET_USER_ACTIVITY_TIMEOUT:
mWmService.mPowerManagerInternal.
setUserActivityTimeoutOverrideFromWindowManager((Long) msg.obj);
break;
default:
break;
}
}
}
void dumpDisplayContents(PrintWriter pw) {
pw.println("WINDOW MANAGER DISPLAY CONTENTS (dumpsys window displays)");
if (mWmService.mDisplayReady) {
final int count = mChildren.size();
for (int i = 0; i < count; ++i) {
final DisplayContent displayContent = mChildren.get(i);
displayContent.dump(pw, " ", true /* dumpAll */);
}
} else {
pw.println(" NO DISPLAY");
}
}
void dumpTopFocusedDisplayId(PrintWriter pw) {
pw.print(" mTopFocusedDisplayId="); pw.println(mTopFocusedDisplayId);
}
void dumpLayoutNeededDisplayIds(PrintWriter pw) {
if (!isLayoutNeeded()) {
return;
}
pw.print(" mLayoutNeeded on displays=");
final int count = mChildren.size();
for (int displayNdx = 0; displayNdx < count; ++displayNdx) {
final DisplayContent displayContent = mChildren.get(displayNdx);
if (displayContent.isLayoutNeeded()) {
pw.print(displayContent.getDisplayId());
}
}
pw.println();
}
void dumpWindowsNoHeader(PrintWriter pw, boolean dumpAll, ArrayList<WindowState> windows) {
final int[] index = new int[1];
forAllWindows((w) -> {
if (windows == null || windows.contains(w)) {
pw.println(" Window #" + index[0] + " " + w + ":");
w.dump(pw, " ", dumpAll || windows != null);
index[0] = index[0] + 1;
}
}, true /* traverseTopToBottom */);
}
void dumpTokens(PrintWriter pw, boolean dumpAll) {
pw.println(" All tokens:");
for (int i = mChildren.size() - 1; i >= 0; --i) {
mChildren.get(i).dumpTokens(pw, dumpAll);
}
}
@CallSuper
@Override
public void writeToProto(ProtoOutputStream proto, long fieldId,
@WindowTraceLogLevel int logLevel) {
if (logLevel == WindowTraceLogLevel.CRITICAL && !isVisible()) {
return;
}
final long token = proto.start(fieldId);
super.writeToProto(proto, WINDOW_CONTAINER, logLevel);
if (mWmService.mDisplayReady) {
final int count = mChildren.size();
for (int i = 0; i < count; ++i) {
final DisplayContent displayContent = mChildren.get(i);
displayContent.writeToProto(proto, DISPLAYS, logLevel);
}
}
if (logLevel == WindowTraceLogLevel.ALL) {
forAllWindows((w) -> {
w.writeIdentifierToProto(proto, WINDOWS);
}, true);
}
proto.end(token);
}
@Override
String getName() {
return "ROOT";
}
@Override
void positionChildAt(int position, DisplayContent child, boolean includingParents) {
super.positionChildAt(position, child, includingParents);
if (mRootActivityContainer != null) {
mRootActivityContainer.onChildPositionChanged(child.mAcitvityDisplay, position);
}
}
void positionChildAt(int position, DisplayContent child) {
// Only called from controller so no need to notify the change to controller.
super.positionChildAt(position, child, false /* includingParents */);
}
@Override
void scheduleAnimation() {
mWmService.scheduleAnimationLocked();
}
@Override
protected void removeChild(DisplayContent dc) {
super.removeChild(dc);
if (mTopFocusedDisplayId == dc.getDisplayId()) {
mWmService.updateFocusedWindowLocked(
UPDATE_FOCUS_NORMAL, true /* updateInputWindows */);
}
}
/**
* For all display at or below this call the callback.
*
* @param callback Callback to be called for every display.
*/
void forAllDisplays(Consumer<DisplayContent> callback) {
for (int i = mChildren.size() - 1; i >= 0; --i) {
callback.accept(mChildren.get(i));
}
}
void forAllDisplayPolicies(Consumer<DisplayPolicy> callback) {
for (int i = mChildren.size() - 1; i >= 0; --i) {
callback.accept(mChildren.get(i).getDisplayPolicy());
}
}
/**
* Get current topmost focused IME window in system.
* Will look on all displays in current Z-order.
*/
WindowState getCurrentInputMethodWindow() {
for (int i = mChildren.size() - 1; i >= 0; --i) {
final DisplayContent displayContent = mChildren.get(i);
if (displayContent.mInputMethodWindow != null) {
return displayContent.mInputMethodWindow;
}
}
return null;
}
}