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/*
* Copyright (C) 2012 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.app.ActivityManager.StackId.DOCKED_STACK_ID;
import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
import static android.app.ActivityManager.StackId.HOME_STACK_ID;
import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_BEHIND;
import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSET;
import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
import static android.view.Display.DEFAULT_DISPLAY;
import static android.view.Display.FLAG_PRIVATE;
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.WindowManager.DOCKED_BOTTOM;
import static android.view.WindowManager.DOCKED_INVALID;
import static android.view.WindowManager.DOCKED_TOP;
import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER;
import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_DISPLAY;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_FOCUS;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_FOCUS_LIGHT;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYOUT;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_MOVEMENT;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ORIENTATION;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
import static com.android.server.wm.WindowManagerService.H.WINDOW_HIDE_TIMEOUT;
import static com.android.server.wm.WindowManagerService.dipToPixel;
import static com.android.server.wm.WindowManagerService.localLOGV;
import static com.android.server.wm.WindowState.RESIZE_HANDLE_WIDTH_IN_DP;
import android.annotation.NonNull;
import android.app.ActivityManager.StackId;
import android.content.res.Configuration;
import android.graphics.Matrix;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Region;
import android.graphics.Region.Op;
import android.hardware.display.DisplayManagerInternal;
import android.os.Debug;
import android.os.Handler;
import android.os.IBinder;
import android.util.DisplayMetrics;
import android.util.Slog;
import android.view.Display;
import android.view.DisplayInfo;
import android.view.IWindow;
import com.android.internal.util.FastPrintWriter;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
/**
* Utility class for keeping track of the WindowStates and other pertinent contents of a
* particular Display.
*
* IMPORTANT: No method from this class should ever be used without holding
* WindowManagerService.mWindowMap.
*/
class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowContainer> {
/** Unique identifier of this stack. */
private final int mDisplayId;
// The display only has 2 child window containers. mTaskStackContainers which contains all
// window containers that are related to apps (Activities) and mNonAppWindowContainers which
// contains all window containers not related to apps (e.g. Status bar).
private final TaskStackContainers mTaskStackContainers = new TaskStackContainers();
private final NonAppWindowContainers mNonAppWindowContainers = new NonAppWindowContainers();
/** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element
* from mDisplayWindows; */
private final WindowList mWindows = new WindowList();
// Mapping from a token IBinder to a WindowToken object on this display.
private final HashMap<IBinder, WindowToken> mTokenMap = new HashMap();
int mInitialDisplayWidth = 0;
int mInitialDisplayHeight = 0;
int mInitialDisplayDensity = 0;
int mBaseDisplayWidth = 0;
int mBaseDisplayHeight = 0;
int mBaseDisplayDensity = 0;
boolean mDisplayScalingDisabled;
private final DisplayInfo mDisplayInfo = new DisplayInfo();
private final Display mDisplay;
private final DisplayMetrics mDisplayMetrics = new DisplayMetrics();
Rect mBaseDisplayRect = new Rect();
private Rect mContentRect = new Rect();
// Accessed directly by all users.
private boolean mLayoutNeeded;
int pendingLayoutChanges;
final boolean isDefaultDisplay;
/** Window tokens that are in the process of exiting, but still on screen for animations. */
final ArrayList<WindowToken> mExitingTokens = new ArrayList<>();
/** A special TaskStack with id==HOME_STACK_ID that moves to the bottom whenever any TaskStack
* (except a future lockscreen TaskStack) moves to the top. */
private TaskStack mHomeStack = null;
/** Detect user tapping outside of current focused task bounds .*/
TaskTapPointerEventListener mTapDetector;
/** Detect user tapping outside of current focused stack bounds .*/
private Region mTouchExcludeRegion = new Region();
/** Save allocating when calculating rects */
private final Rect mTmpRect = new Rect();
private final Rect mTmpRect2 = new Rect();
private final RectF mTmpRectF = new RectF();
private final Matrix mTmpMatrix = new Matrix();
private final Region mTmpRegion = new Region();
final WindowManagerService mService;
/** Remove this display when animation on it has completed. */
private boolean mDeferredRemoval;
final DockedStackDividerController mDividerControllerLocked;
final DimLayerController mDimLayerController;
final ArrayList<WindowState> mTapExcludedWindows = new ArrayList<>();
/** Used when rebuilding window list to keep track of windows that have been removed. */
private WindowState[] mRebuildTmp = new WindowState[20];
private final TaskForResizePointSearchResult mTmpTaskForResizePointSearchResult =
new TaskForResizePointSearchResult();
private final GetWindowOnDisplaySearchResult mTmpGetWindowOnDisplaySearchResult =
new GetWindowOnDisplaySearchResult();
/**
* @param display May not be null.
* @param service You know.
*/
DisplayContent(Display display, WindowManagerService service) {
mDisplay = display;
mDisplayId = display.getDisplayId();
display.getDisplayInfo(mDisplayInfo);
display.getMetrics(mDisplayMetrics);
isDefaultDisplay = mDisplayId == DEFAULT_DISPLAY;
mService = service;
initializeDisplayBaseInfo();
mDividerControllerLocked = new DockedStackDividerController(service, this);
mDimLayerController = new DimLayerController(this);
// These are the only direct children we should ever have and they are permanent.
super.addChild(mTaskStackContainers, null);
super.addChild(mNonAppWindowContainers, null);
}
int getDisplayId() {
return mDisplayId;
}
WindowList getWindowList() {
return mWindows;
}
WindowToken getWindowToken(IBinder binder) {
return mTokenMap.get(binder);
}
AppWindowToken getAppWindowToken(IBinder binder) {
final WindowToken token = getWindowToken(binder);
if (token == null) {
return null;
}
return token.asAppWindowToken();
}
void setWindowToken(IBinder binder, WindowToken token) {
final DisplayContent dc = mService.mRoot.getWindowTokenDisplay(token);
if (dc != null) {
// We currently don't support adding a window token to the display if the display
// already has the binder mapped to another token. If there is a use case for supporting
// this moving forward we will either need to merge the WindowTokens some how or have
// the binder map to a list of window tokens.
throw new IllegalArgumentException("Can't map token=" + token + " to display=" + this
+ " already mapped to display=" + dc + " tokens=" + dc.mTokenMap);
}
mTokenMap.put(binder, token);
if (token.asAppWindowToken() == null) {
// Add non-app token to container hierarchy on the display. App tokens are added through
// the parent container managing them (e.g. Tasks).
mNonAppWindowContainers.addChild(token, null);
}
}
WindowToken removeWindowToken(IBinder binder) {
final WindowToken token = mTokenMap.remove(binder);
if (token != null && token.asAppWindowToken() == null) {
mNonAppWindowContainers.removeChild(token);
}
return token;
}
Display getDisplay() {
return mDisplay;
}
DisplayInfo getDisplayInfo() {
return mDisplayInfo;
}
DisplayMetrics getDisplayMetrics() {
return mDisplayMetrics;
}
DockedStackDividerController getDockedDividerController() {
return mDividerControllerLocked;
}
/**
* Returns true if the specified UID has access to this display.
*/
boolean hasAccess(int uid) {
return mDisplay.hasAccess(uid);
}
boolean isPrivate() {
return (mDisplay.getFlags() & FLAG_PRIVATE) != 0;
}
TaskStack getHomeStack() {
if (mHomeStack == null && mDisplayId == DEFAULT_DISPLAY) {
Slog.e(TAG_WM, "getHomeStack: Returning null from this=" + this);
}
return mHomeStack;
}
TaskStack getStackById(int stackId) {
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
if (stack.mStackId == stackId) {
return stack;
}
}
return null;
}
@Override
void onConfigurationChanged(Configuration newParentConfig) {
super.onConfigurationChanged(newParentConfig);
// The display size information is heavily dependent on the resources in the current
// configuration, so we need to reconfigure it every time the configuration changes.
// See {@link PhoneWindowManager#setInitialDisplaySize}...sigh...
mService.reconfigureDisplayLocked(this);
getDockedDividerController().onConfigurationChanged();
}
/**
* Callback used to trigger bounds update after configuration change and get ids of stacks whose
* bounds were updated.
*/
void updateStackBoundsAfterConfigChange(@NonNull List<Integer> changedStackList) {
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
if (stack.updateBoundsAfterConfigChange()) {
changedStackList.add(stack.mStackId);
}
}
}
@Override
boolean fillsParent() {
return true;
}
@Override
boolean isVisible() {
return true;
}
@Override
void onAppTransitionDone() {
super.onAppTransitionDone();
rebuildAppWindowList();
}
@Override
int getOrientation() {
if (mService.isStackVisibleLocked(DOCKED_STACK_ID)
|| mService.isStackVisibleLocked(FREEFORM_WORKSPACE_STACK_ID)) {
// Apps and their containers are not allowed to specify an orientation while the docked
// or freeform stack is visible...except for the home stack/task if the docked stack is
// minimized and it actually set something.
if (mHomeStack != null && mHomeStack.isVisible()
&& mDividerControllerLocked.isMinimizedDock()) {
final int orientation = mHomeStack.getOrientation();
if (orientation != SCREEN_ORIENTATION_UNSET) {
return orientation;
}
}
return SCREEN_ORIENTATION_UNSPECIFIED;
}
final int orientation = super.getOrientation();
if (orientation != SCREEN_ORIENTATION_UNSET && orientation != SCREEN_ORIENTATION_BEHIND) {
if (DEBUG_ORIENTATION) Slog.v(TAG_WM,
"App is requesting an orientation, return " + orientation);
return orientation;
}
if (DEBUG_ORIENTATION) Slog.v(TAG_WM,
"No app is requesting an orientation, return " + mService.mLastOrientation);
// The next app has not been requested to be visible, so we keep the current orientation
// to prevent freezing/unfreezing the display too early.
return mService.mLastOrientation;
}
void updateDisplayInfo() {
mDisplay.getDisplayInfo(mDisplayInfo);
mDisplay.getMetrics(mDisplayMetrics);
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
mTaskStackContainers.get(i).updateDisplayInfo(null);
}
}
void initializeDisplayBaseInfo() {
final DisplayManagerInternal displayManagerInternal = mService.mDisplayManagerInternal;
if (displayManagerInternal != null) {
// Bootstrap the default logical display from the display manager.
final DisplayInfo newDisplayInfo = displayManagerInternal.getDisplayInfo(mDisplayId);
if (newDisplayInfo != null) {
mDisplayInfo.copyFrom(newDisplayInfo);
}
}
mBaseDisplayWidth = mInitialDisplayWidth = mDisplayInfo.logicalWidth;
mBaseDisplayHeight = mInitialDisplayHeight = mDisplayInfo.logicalHeight;
mBaseDisplayDensity = mInitialDisplayDensity = mDisplayInfo.logicalDensityDpi;
mBaseDisplayRect.set(0, 0, mBaseDisplayWidth, mBaseDisplayHeight);
}
void getLogicalDisplayRect(Rect out) {
// Uses same calculation as in LogicalDisplay#configureDisplayInTransactionLocked.
final int orientation = mDisplayInfo.rotation;
boolean rotated = (orientation == ROTATION_90 || orientation == ROTATION_270);
final int physWidth = rotated ? mBaseDisplayHeight : mBaseDisplayWidth;
final int physHeight = rotated ? mBaseDisplayWidth : mBaseDisplayHeight;
int width = mDisplayInfo.logicalWidth;
int left = (physWidth - width) / 2;
int height = mDisplayInfo.logicalHeight;
int top = (physHeight - height) / 2;
out.set(left, top, left + width, top + height);
}
private void getLogicalDisplayRect(Rect out, int orientation) {
getLogicalDisplayRect(out);
// Rotate the Rect if needed.
final int currentRotation = mDisplayInfo.rotation;
final int rotationDelta = deltaRotation(currentRotation, orientation);
if (rotationDelta == ROTATION_90 || rotationDelta == ROTATION_270) {
createRotationMatrix(rotationDelta, mBaseDisplayWidth, mBaseDisplayHeight, mTmpMatrix);
mTmpRectF.set(out);
mTmpMatrix.mapRect(mTmpRectF);
mTmpRectF.round(out);
}
}
void getContentRect(Rect out) {
out.set(mContentRect);
}
/** Refer to {@link WindowManagerService#attachStack(int, int, boolean)} */
void attachStack(TaskStack stack, boolean onTop) {
mTaskStackContainers.attachStack(stack, onTop);
}
void moveStack(TaskStack stack, boolean toTop) {
mTaskStackContainers.moveStack(stack, toTop);
}
@Override
protected void addChild(DisplayChildWindowContainer child,
Comparator<DisplayChildWindowContainer> comparator) {
throw new UnsupportedOperationException("See DisplayChildWindowContainer");
}
@Override
protected void addChild(DisplayChildWindowContainer child, int index) {
throw new UnsupportedOperationException("See DisplayChildWindowContainer");
}
@Override
protected void removeChild(DisplayChildWindowContainer child) {
throw new UnsupportedOperationException("See DisplayChildWindowContainer");
}
/**
* Propagate the new bounds to all child stacks.
* @param contentRect The bounds to apply at the top level.
*/
void resize(Rect contentRect) {
mContentRect.set(contentRect);
}
int taskIdFromPoint(int x, int y) {
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
final TaskStack stack = mTaskStackContainers.get(stackNdx);
final int taskId = stack.taskIdFromPoint(x, y);
if (taskId != -1) {
return taskId;
}
}
return -1;
}
/**
* Find the task whose outside touch area (for resizing) (x, y) falls within.
* Returns null if the touch doesn't fall into a resizing area.
*/
Task findTaskForResizePoint(int x, int y) {
final int delta = dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics);
mTmpTaskForResizePointSearchResult.reset();
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
final TaskStack stack = mTaskStackContainers.get(stackNdx);
if (!StackId.isTaskResizeAllowed(stack.mStackId)) {
return null;
}
stack.findTaskForResizePoint(x, y, delta, mTmpTaskForResizePointSearchResult);
if (mTmpTaskForResizePointSearchResult.searchDone) {
return mTmpTaskForResizePointSearchResult.taskForResize;
}
}
return null;
}
void setTouchExcludeRegion(Task focusedTask) {
mTouchExcludeRegion.set(mBaseDisplayRect);
final int delta = dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics);
mTmpRect2.setEmpty();
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
final TaskStack stack = mTaskStackContainers.get(stackNdx);
stack.setTouchExcludeRegion(
focusedTask, delta, mTouchExcludeRegion, mContentRect, mTmpRect2);
}
// If we removed the focused task above, add it back and only leave its
// outside touch area in the exclusion. TapDectector is not interested in
// any touch inside the focused task itself.
if (!mTmpRect2.isEmpty()) {
mTouchExcludeRegion.op(mTmpRect2, Region.Op.UNION);
}
final WindowState inputMethod = mService.mInputMethodWindow;
if (inputMethod != null && inputMethod.isVisibleLw()) {
// If the input method is visible and the user is typing, we don't want these touch
// events to be intercepted and used to change focus. This would likely cause a
// disappearance of the input method.
inputMethod.getTouchableRegion(mTmpRegion);
mTouchExcludeRegion.op(mTmpRegion, Region.Op.UNION);
}
for (int i = mTapExcludedWindows.size() - 1; i >= 0; i--) {
WindowState win = mTapExcludedWindows.get(i);
win.getTouchableRegion(mTmpRegion);
mTouchExcludeRegion.op(mTmpRegion, Region.Op.UNION);
}
if (getDockedStackVisibleForUserLocked() != null) {
mDividerControllerLocked.getTouchRegion(mTmpRect);
mTmpRegion.set(mTmpRect);
mTouchExcludeRegion.op(mTmpRegion, Op.UNION);
}
if (mTapDetector != null) {
mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion);
}
}
void switchUser() {
final WindowList windows = getWindowList();
for (int i = 0; i < windows.size(); i++) {
final WindowState win = windows.get(i);
if (win.isHiddenFromUserLocked()) {
if (DEBUG_VISIBILITY) Slog.w(TAG_WM, "user changing, hiding " + win
+ ", attrs=" + win.mAttrs.type + ", belonging to " + win.mOwnerUid);
win.hideLw(false);
}
}
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
mTaskStackContainers.get(stackNdx).switchUser();
}
rebuildAppWindowList();
}
void resetAnimationBackgroundAnimator() {
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
mTaskStackContainers.get(stackNdx).resetAnimationBackgroundAnimator();
}
}
boolean animateDimLayers() {
return mDimLayerController.animateDimLayers();
}
void resetDimming() {
mDimLayerController.resetDimming();
}
boolean isDimming() {
return mDimLayerController.isDimming();
}
void stopDimmingIfNeeded() {
mDimLayerController.stopDimmingIfNeeded();
}
@Override
void removeIfPossible() {
if (isAnimating()) {
mDeferredRemoval = true;
return;
}
removeImmediately();
}
@Override
void removeImmediately() {
super.removeImmediately();
if (DEBUG_DISPLAY) Slog.v(TAG_WM, "Removing display=" + this);
mDimLayerController.close();
if (mDisplayId == DEFAULT_DISPLAY) {
mService.unregisterPointerEventListener(mTapDetector);
mService.unregisterPointerEventListener(mService.mMousePositionTracker);
}
}
/** Returns true if a removal action is still being deferred. */
@Override
boolean checkCompleteDeferredRemoval() {
final boolean stillDeferringRemoval = super.checkCompleteDeferredRemoval();
if (!stillDeferringRemoval && mDeferredRemoval) {
removeImmediately();
mService.onDisplayRemoved(mDisplayId);
return false;
}
return true;
}
boolean animateForIme(float interpolatedValue, float animationTarget,
float dividerAnimationTarget) {
boolean updated = false;
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
if (stack == null || !stack.isAdjustedForIme()) {
continue;
}
if (interpolatedValue >= 1f && animationTarget == 0f && dividerAnimationTarget == 0f) {
stack.resetAdjustedForIme(true /* adjustBoundsNow */);
updated = true;
} else {
mDividerControllerLocked.mLastAnimationProgress =
mDividerControllerLocked.getInterpolatedAnimationValue(interpolatedValue);
mDividerControllerLocked.mLastDividerProgress =
mDividerControllerLocked.getInterpolatedDividerValue(interpolatedValue);
updated |= stack.updateAdjustForIme(
mDividerControllerLocked.mLastAnimationProgress,
mDividerControllerLocked.mLastDividerProgress,
false /* force */);
}
if (interpolatedValue >= 1f) {
stack.endImeAdjustAnimation();
}
}
return updated;
}
boolean clearImeAdjustAnimation() {
boolean changed = false;
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
if (stack != null && stack.isAdjustedForIme()) {
stack.resetAdjustedForIme(true /* adjustBoundsNow */);
changed = true;
}
}
return changed;
}
void beginImeAdjustAnimation() {
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
if (stack.isVisible() && stack.isAdjustedForIme()) {
stack.beginImeAdjustAnimation();
}
}
}
void adjustForImeIfNeeded() {
final WindowState imeWin = mService.mInputMethodWindow;
final boolean imeVisible = imeWin != null && imeWin.isVisibleLw() && imeWin.isDisplayedLw()
&& !mDividerControllerLocked.isImeHideRequested();
final boolean dockVisible = mService.isStackVisibleLocked(DOCKED_STACK_ID);
final TaskStack imeTargetStack = mService.getImeFocusStackLocked();
final int imeDockSide = (dockVisible && imeTargetStack != null) ?
imeTargetStack.getDockSide() : DOCKED_INVALID;
final boolean imeOnTop = (imeDockSide == DOCKED_TOP);
final boolean imeOnBottom = (imeDockSide == DOCKED_BOTTOM);
final boolean dockMinimized = mDividerControllerLocked.isMinimizedDock();
final int imeHeight = mService.mPolicy.getInputMethodWindowVisibleHeightLw();
final boolean imeHeightChanged = imeVisible &&
imeHeight != mDividerControllerLocked.getImeHeightAdjustedFor();
// The divider could be adjusted for IME position, or be thinner than usual,
// or both. There are three possible cases:
// - If IME is visible, and focus is on top, divider is not moved for IME but thinner.
// - If IME is visible, and focus is on bottom, divider is moved for IME and thinner.
// - If IME is not visible, divider is not moved and is normal width.
if (imeVisible && dockVisible && (imeOnTop || imeOnBottom) && !dockMinimized) {
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
final boolean isDockedOnBottom = stack.getDockSide() == DOCKED_BOTTOM;
if (stack.isVisible() && (imeOnBottom || isDockedOnBottom)) {
stack.setAdjustedForIme(imeWin, imeOnBottom && imeHeightChanged);
} else {
stack.resetAdjustedForIme(false);
}
}
mDividerControllerLocked.setAdjustedForIme(
imeOnBottom /*ime*/, true /*divider*/, true /*animate*/, imeWin, imeHeight);
} else {
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
stack.resetAdjustedForIme(!dockVisible);
}
mDividerControllerLocked.setAdjustedForIme(
false /*ime*/, false /*divider*/, dockVisible /*animate*/, imeWin, imeHeight);
}
}
void prepareFreezingTaskBounds() {
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
final TaskStack stack = mTaskStackContainers.get(stackNdx);
stack.prepareFreezingTaskBounds();
}
}
void rotateBounds(int oldRotation, int newRotation, Rect bounds) {
getLogicalDisplayRect(mTmpRect, newRotation);
// Compute a transform matrix to undo the coordinate space transformation,
// and present the window at the same physical position it previously occupied.
final int deltaRotation = deltaRotation(newRotation, oldRotation);
createRotationMatrix(deltaRotation, mTmpRect.width(), mTmpRect.height(), mTmpMatrix);
mTmpRectF.set(bounds);
mTmpMatrix.mapRect(mTmpRectF);
mTmpRectF.round(bounds);
}
static int deltaRotation(int oldRotation, int newRotation) {
int delta = newRotation - oldRotation;
if (delta < 0) delta += 4;
return delta;
}
private static void createRotationMatrix(int rotation, float displayWidth, float displayHeight,
Matrix outMatrix) {
// For rotations without Z-ordering we don't need the target rectangle's position.
createRotationMatrix(rotation, 0 /* rectLeft */, 0 /* rectTop */, displayWidth,
displayHeight, outMatrix);
}
static void createRotationMatrix(int rotation, float rectLeft, float rectTop,
float displayWidth, float displayHeight, Matrix outMatrix) {
switch (rotation) {
case ROTATION_0:
outMatrix.reset();
break;
case ROTATION_270:
outMatrix.setRotate(270, 0, 0);
outMatrix.postTranslate(0, displayHeight);
outMatrix.postTranslate(rectTop, 0);
break;
case ROTATION_180:
outMatrix.reset();
break;
case ROTATION_90:
outMatrix.setRotate(90, 0, 0);
outMatrix.postTranslate(displayWidth, 0);
outMatrix.postTranslate(-rectTop, rectLeft);
break;
}
}
public void dump(String prefix, PrintWriter pw) {
pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId);
final String subPrefix = " " + prefix;
pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x");
pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity);
pw.print("dpi");
if (mInitialDisplayWidth != mBaseDisplayWidth
|| mInitialDisplayHeight != mBaseDisplayHeight
|| mInitialDisplayDensity != mBaseDisplayDensity) {
pw.print(" base=");
pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight);
pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi");
}
if (mDisplayScalingDisabled) {
pw.println(" noscale");
}
pw.print(" cur=");
pw.print(mDisplayInfo.logicalWidth);
pw.print("x"); pw.print(mDisplayInfo.logicalHeight);
pw.print(" app=");
pw.print(mDisplayInfo.appWidth);
pw.print("x"); pw.print(mDisplayInfo.appHeight);
pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth);
pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight);
pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth);
pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight);
pw.println(subPrefix + "deferred=" + mDeferredRemoval
+ " mLayoutNeeded=" + mLayoutNeeded);
pw.println();
pw.println(" Application tokens in top down Z order:");
for (int stackNdx = mTaskStackContainers.size() - 1; stackNdx >= 0; --stackNdx) {
final TaskStack stack = mTaskStackContainers.get(stackNdx);
stack.dump(prefix + " ", pw);
}
pw.println();
if (!mExitingTokens.isEmpty()) {
pw.println();
pw.println(" Exiting tokens:");
for (int i = mExitingTokens.size() - 1; i >= 0; i--) {
final WindowToken token = mExitingTokens.get(i);
pw.print(" Exiting #"); pw.print(i);
pw.print(' '); pw.print(token);
pw.println(':');
token.dump(pw, " ");
}
}
pw.println();
mDimLayerController.dump(prefix + " ", pw);
pw.println();
mDividerControllerLocked.dump(prefix + " ", pw);
}
@Override
public String toString() {
return "Display " + mDisplayId + " info=" + mDisplayInfo + " stacks=" + mChildren;
}
String getName() {
return "Display " + mDisplayId + " name=\"" + mDisplayInfo.name + "\"";
}
/**
* @return The docked stack, but only if it is visible, and {@code null} otherwise.
*/
TaskStack getDockedStackLocked() {
final TaskStack stack = mService.mStackIdToStack.get(DOCKED_STACK_ID);
return (stack != null && stack.isVisible()) ? stack : null;
}
/**
* Like {@link #getDockedStackLocked}, but also returns the docked stack if it's currently not
* visible, as long as it's not hidden because the current user doesn't have any tasks there.
*/
TaskStack getDockedStackVisibleForUserLocked() {
final TaskStack stack = mService.mStackIdToStack.get(DOCKED_STACK_ID);
return (stack != null && stack.isVisible(true /* ignoreKeyguard */)) ? stack : null;
}
/** Find the visible, touch-deliverable window under the given point */
WindowState getTouchableWinAtPointLocked(float xf, float yf) {
WindowState touchedWin = null;
final int x = (int) xf;
final int y = (int) yf;
for (int i = mWindows.size() - 1; i >= 0; i--) {
WindowState window = mWindows.get(i);
final int flags = window.mAttrs.flags;
if (!window.isVisibleLw()) {
continue;
}
if ((flags & FLAG_NOT_TOUCHABLE) != 0) {
continue;
}
window.getVisibleBounds(mTmpRect);
if (!mTmpRect.contains(x, y)) {
continue;
}
window.getTouchableRegion(mTmpRegion);
final int touchFlags = flags & (FLAG_NOT_FOCUSABLE | FLAG_NOT_TOUCH_MODAL);
if (mTmpRegion.contains(x, y) || touchFlags == 0) {
touchedWin = window;
break;
}
}
return touchedWin;
}
boolean canAddToastWindowForUid(int uid) {
// We allow one toast window per UID being shown at a time.
WindowList windows = getWindowList();
final int windowCount = windows.size();
for (int i = 0; i < windowCount; i++) {
WindowState window = windows.get(i);
if (window.mAttrs.type == TYPE_TOAST && window.mOwnerUid == uid
&& !window.mPermanentlyHidden && !window.mAnimatingExit
&& !window.mRemoveOnExit) {
return false;
}
}
return true;
}
void scheduleToastWindowsTimeoutIfNeededLocked(WindowState oldFocus, WindowState newFocus) {
if (oldFocus == null || (newFocus != null && newFocus.mOwnerUid == oldFocus.mOwnerUid)) {
return;
}
final int lostFocusUid = oldFocus.mOwnerUid;
final WindowList windows = getWindowList();
final int windowCount = windows.size();
final Handler handler = mService.mH;
for (int i = 0; i < windowCount; i++) {
final WindowState window = windows.get(i);
if (window.mAttrs.type == TYPE_TOAST && window.mOwnerUid == lostFocusUid) {
if (!handler.hasMessages(WINDOW_HIDE_TIMEOUT, window)) {
handler.sendMessageDelayed(handler.obtainMessage(WINDOW_HIDE_TIMEOUT, window),
window.mAttrs.hideTimeoutMilliseconds);
}
}
}
}
WindowState findFocusedWindow() {
final AppWindowToken focusedApp = mService.mFocusedApp;
for (int i = mWindows.size() - 1; i >= 0; i--) {
final WindowState win = mWindows.get(i);
if (DEBUG_FOCUS) Slog.v(TAG_WM, "Looking for focus: " + i + " = " + win
+ ", flags=" + win.mAttrs.flags + ", canReceive=" + win.canReceiveKeys());
if (!win.canReceiveKeys()) {
continue;
}
final AppWindowToken wtoken = win.mAppToken;
// If this window's application has been removed, just skip it.
if (wtoken != null && (wtoken.removed || wtoken.sendingToBottom)) {
if (DEBUG_FOCUS) Slog.v(TAG_WM, "Skipping " + wtoken + " because "
+ (wtoken.removed ? "removed" : "sendingToBottom"));
continue;
}
if (focusedApp == null) {
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM, "findFocusedWindow: focusedApp=null"
+ " using new focus @ " + i + " = " + win);
return win;
}
if (!focusedApp.windowsAreFocusable()) {
// Current focused app windows aren't focusable...
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM, "findFocusedWindow: focusedApp windows not"
+ " focusable using new focus @ " + i + " = " + win);
return win;
}
// Descend through all of the app tokens and find the first that either matches
// win.mAppToken (return win) or mFocusedApp (return null).
if (wtoken != null && win.mAttrs.type != TYPE_APPLICATION_STARTING) {
if (focusedApp.compareTo(wtoken) > 0) {
// App stack below focused app stack. No focus for you!!!
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM,
"findFocusedWindow: Reached focused app=" + focusedApp);
return null;
}
}
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM, "findFocusedWindow: Found new focus @ "
+ i + " = " + win);
return win;
}
if (DEBUG_FOCUS_LIGHT) Slog.v(TAG_WM, "findFocusedWindow: No focusable windows.");
return null;
}
int addAppWindowToWindowList(final WindowState win) {
final IWindow client = win.mClient;
WindowList tokenWindowList = getTokenWindowsOnDisplay(win.mToken);
if (!tokenWindowList.isEmpty()) {
return addAppWindowExisting(win, tokenWindowList);
}
// No windows from this token on this display
if (localLOGV) Slog.v(TAG_WM, "Figuring out where to add app window "
+ client.asBinder() + " (token=" + this + ")");
final WindowToken wToken = win.mToken;
// Figure out where the window should go, based on the order of applications.
mTmpGetWindowOnDisplaySearchResult.reset();
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
stack.getWindowOnDisplayBeforeToken(this, wToken, mTmpGetWindowOnDisplaySearchResult);
if (mTmpGetWindowOnDisplaySearchResult.reachedToken) {
// We have reach the token we are interested in. End search.
break;
}
}
WindowState pos = mTmpGetWindowOnDisplaySearchResult.foundWindow;
// We now know the index into the apps. If we found an app window above, that gives us the
// position; else we need to look some more.
if (pos != null) {
// Move behind any windows attached to this one.
final WindowToken atoken = getWindowToken(pos.mClient.asBinder());
if (atoken != null) {
tokenWindowList = getTokenWindowsOnDisplay(atoken);
final int NC = tokenWindowList.size();
if (NC > 0) {
WindowState bottom = tokenWindowList.get(0);
if (bottom.mSubLayer < 0) {
pos = bottom;
}
}
}
addWindowToListBefore(win, pos);
return 0;
}
// Continue looking down until we find the first token that has windows on this display.
mTmpGetWindowOnDisplaySearchResult.reset();
for (int i = mTaskStackContainers.size() - 1; i >= 0; --i) {
final TaskStack stack = mTaskStackContainers.get(i);
stack.getWindowOnDisplayAfterToken(this, wToken, mTmpGetWindowOnDisplaySearchResult);
if (mTmpGetWindowOnDisplaySearchResult.foundWindow != null) {
// We have found a window after the token. End search.
break;
}
}
pos = mTmpGetWindowOnDisplaySearchResult.foundWindow;
if (pos != null) {
// Move in front of any windows attached to this one.
final WindowToken atoken = getWindowToken(pos.mClient.asBinder());
if (atoken != null) {
final WindowState top = atoken.getTopWindow();
if (top != null && top.mSubLayer >= 0) {
pos = top;
}
}
addWindowToListAfter(win, pos);
return 0;
}
// Just search for the start of this layer.
final int myLayer = win.mBaseLayer;
int i;
for (i = mWindows.size() - 1; i >= 0; --i) {
final WindowState w = mWindows.get(i);
// Dock divider shares the base layer with application windows, but we want to always
// keep it above the application windows. The sharing of the base layer is intended
// for window animations, which need to be above the dock divider for the duration
// of the animation.
if (w.mBaseLayer <= myLayer && w.mAttrs.type != TYPE_DOCK_DIVIDER) {
break;
}
}
if (DEBUG_FOCUS || DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
"Based on layer: Adding window " + win + " at " + (i + 1) + " of "
+ mWindows.size());
mWindows.add(i + 1, win);
mService.mWindowsChanged = true;
return 0;
}
/** Adds this non-app window to the window list. */
void addNonAppWindowToWindowList(WindowState win) {
// Figure out where window should go, based on layer.
int i;
for (i = mWindows.size() - 1; i >= 0; i--) {
final WindowState otherWin = mWindows.get(i);
if (otherWin.getBaseType() != TYPE_WALLPAPER && otherWin.mBaseLayer <= win.mBaseLayer) {
// Wallpaper wanders through the window list, for example to position itself
// directly behind keyguard. Because of this it will break the ordering based on
// WindowState.mBaseLayer. There might windows with higher mBaseLayer behind it and
// we don't want the new window to appear above them. An example of this is adding
// of the docked stack divider. Consider a scenario with the following ordering (top
// to bottom): keyguard, wallpaper, assist preview, apps. We want the dock divider
// to land below the assist preview, so the dock divider must ignore the wallpaper,
// with which it shares the base layer.
break;
}
}
i++;
if (DEBUG_FOCUS || DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
"Free window: Adding window " + this + " at " + i + " of " + mWindows.size());
mWindows.add(i, win);
mService.mWindowsChanged = true;
}
void addToWindowList(WindowState win, int index) {
mWindows.add(index, win);
}
void addChildWindowToWindowList(WindowState win) {
final WindowState parentWindow = win.getParentWindow();
WindowList windowsOnSameDisplay = getTokenWindowsOnDisplay(win.mToken);
// Figure out this window's ordering relative to the parent window.
final int wCount = windowsOnSameDisplay.size();
final int sublayer = win.mSubLayer;
int largestSublayer = Integer.MIN_VALUE;
WindowState windowWithLargestSublayer = null;
int i;
for (i = 0; i < wCount; i++) {
WindowState w = windowsOnSameDisplay.get(i);
final int wSublayer = w.mSubLayer;
if (wSublayer >= largestSublayer) {
largestSublayer = wSublayer;
windowWithLargestSublayer = w;
}
if (sublayer < 0) {
// For negative sublayers, we go below all windows in the same sublayer.
if (wSublayer >= sublayer) {
addWindowToListBefore(win, wSublayer >= 0 ? parentWindow : w);
break;
}
} else {
// For positive sublayers, we go above all windows in the same sublayer.
if (wSublayer > sublayer) {
addWindowToListBefore(win, w);
break;
}
}
}
if (i >= wCount) {
if (sublayer < 0) {
addWindowToListBefore(win, parentWindow);
} else {
addWindowToListAfter(win,
largestSublayer >= 0 ? windowWithLargestSublayer : parentWindow);
}
}
}
/**
* Z-orders the display window list so that:
* <ul>
* <li>Any windows that are currently below the wallpaper window stay below the wallpaper
* window.
* <li>Exiting application windows are at the bottom, but above the wallpaper window.
* <li>All other application windows are above the exiting application windows and ordered based
* on the ordering of their stacks and tasks on the display.
* <li>Non-application windows are at the very top.
* </ul>
* <p>
* NOTE: This isn't a complete picture of what the user see. Further manipulation of the window
* surface layering is done in {@link WindowLayersController}.
*/
void rebuildAppWindowList() {
int count = mWindows.size();
int i;
int lastBelow = -1;
int numRemoved = 0;
if (mRebuildTmp.length < count) {
mRebuildTmp = new WindowState[count + 10];
}
// First remove all existing app windows.
i = 0;
while (i < count) {
final WindowState w = mWindows.get(i);
if (w.mAppToken != null) {
final WindowState win = mWindows.remove(i);
win.mRebuilding = true;
mRebuildTmp[numRemoved] = win;
mService.mWindowsChanged = true;
if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG_WM, "Rebuild removing window: " + win);
count--;
numRemoved++;
continue;
} else if (lastBelow == i-1) {
if (w.mAttrs.type == TYPE_WALLPAPER) {
lastBelow = i;
}
}
i++;
}
// Keep whatever windows were below the app windows still below, by skipping them.
lastBelow++;
i = lastBelow;
// First add all of the exiting app tokens... these are no longer in the main app list,
// but still have windows shown. We put them in the back because now that the animation is
// over we no longer will care about them.
final int numStacks = mTaskStackContainers.size();
for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) {
AppTokenList exitingAppTokens = mTaskStackContainers.get(stackNdx).mExitingAppTokens;
int NT = exitingAppTokens.size();
for (int j = 0; j < NT; j++) {
i = exitingAppTokens.get(j).rebuildWindowListUnchecked(i);
}
}
// And add in the still active app tokens in Z order.
for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) {
i = mTaskStackContainers.get(stackNdx).rebuildWindowList(i);
}
i -= lastBelow;
if (i != numRemoved) {
setLayoutNeeded();
Slog.w(TAG_WM, "On display=" + mDisplayId + " Rebuild removed " + numRemoved
+ " windows but added " + i + " rebuildAppWindowListLocked() "
+ " callers=" + Debug.getCallers(10));
for (i = 0; i < numRemoved; i++) {
WindowState ws = mRebuildTmp[i];
if (ws.mRebuilding) {
StringWriter sw = new StringWriter();
PrintWriter pw = new FastPrintWriter(sw, false, 1024);
ws.dump(pw, "", true);
pw.flush();
Slog.w(TAG_WM, "This window was lost: " + ws);
Slog.w(TAG_WM, sw.toString());
ws.mWinAnimator.destroySurfaceLocked();
}
}
Slog.w(TAG_WM, "Current window hierarchy:");
dumpChildrenNames();
Slog.w(TAG_WM, "Final window list:");
dumpWindows();
}
Arrays.fill(mRebuildTmp, null);
}
/** Return the list of Windows on this display associated with the input token. */
WindowList getTokenWindowsOnDisplay(WindowToken token) {
final WindowList windowList = new WindowList();
final int count = mWindows.size();
for (int i = 0; i < count; i++) {
final WindowState win = mWindows.get(i);
if (win.mToken == token) {
windowList.add(win);
}
}
return windowList;
}
void setLayoutNeeded() {
if (DEBUG_LAYOUT) Slog.w(TAG_WM, "setLayoutNeeded: callers=" + Debug.getCallers(3));
mLayoutNeeded = true;
}
void clearLayoutNeeded() {
if (DEBUG_LAYOUT) Slog.w(TAG_WM, "clearLayoutNeeded: callers=" + Debug.getCallers(3));
mLayoutNeeded = false;
}
boolean isLayoutNeeded() {
return mLayoutNeeded;
}
private int addAppWindowExisting(WindowState win, WindowList tokenWindowList) {
int tokenWindowsPos;
// If this application has existing windows, we simply place the new window on top of
// them... but keep the starting window on top.
if (win.mAttrs.type == TYPE_BASE_APPLICATION) {
// Base windows go behind everything else.
final WindowState lowestWindow = tokenWindowList.get(0);
addWindowToListBefore(win, lowestWindow);
tokenWindowsPos = win.mToken.getWindowIndex(lowestWindow);
} else {
final AppWindowToken atoken = win.mAppToken;
final int windowListPos = tokenWindowList.size();
final WindowState lastWindow = tokenWindowList.get(windowListPos - 1);
if (atoken != null && lastWindow == atoken.startingWindow) {
addWindowToListBefore(win, lastWindow);
tokenWindowsPos = win.mToken.getWindowIndex(lastWindow);
} else {
int newIdx = findIdxBasedOnAppTokens(win);
// There is a window above this one associated with the same apptoken note that the
// window could be a floating window that was created later or a window at the top
// of the list of windows associated with this token.
if (DEBUG_FOCUS || DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
"not Base app: Adding window " + win + " at " + (newIdx + 1) + " of "
+ mWindows.size());
mWindows.add(newIdx + 1, win);
if (newIdx < 0) {
// No window from token found on win's display.
tokenWindowsPos = 0;
} else {
tokenWindowsPos = win.mToken.getWindowIndex(mWindows.get(newIdx)) + 1;
}
mService.mWindowsChanged = true;
}
}
return tokenWindowsPos;
}
/** Places the first input window after the second input window in the window list. */
private void addWindowToListAfter(WindowState first, WindowState second) {
final int i = mWindows.indexOf(second);
if (DEBUG_FOCUS || DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
"Adding window " + this + " at " + (i + 1) + " of " + mWindows.size()
+ " (after " + second + ")");
mWindows.add(i + 1, first);
mService.mWindowsChanged = true;
}
/** Places the first input window before the second input window in the window list. */
private void addWindowToListBefore(WindowState first, WindowState second) {
int i = mWindows.indexOf(second);
if (DEBUG_FOCUS || DEBUG_WINDOW_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
"Adding window " + this + " at " + i + " of " + mWindows.size()
+ " (before " + second + ")");
if (i < 0) {
Slog.w(TAG_WM, "addWindowToListBefore: Unable to find " + second + " in " + mWindows);
i = 0;
}
mWindows.add(i, first);
mService.mWindowsChanged = true;
}
/**
* This method finds out the index of a window that has the same app token as win. used for z
* ordering the windows in mWindows
*/
private int findIdxBasedOnAppTokens(WindowState win) {
for(int j = mWindows.size() - 1; j >= 0; j--) {
final WindowState wentry = mWindows.get(j);
if(wentry.mAppToken == win.mAppToken) {
return j;
}
}
return -1;
}
private void dumpChildrenNames() {
StringBuilder output = new StringBuilder();
dumpChildrenNames(output, " ");
Slog.v(TAG_WM, output.toString());
}
private void dumpWindows() {
Slog.v(TAG_WM, " Display #" + mDisplayId);
final WindowList windows = getWindowList();
for (int winNdx = windows.size() - 1; winNdx >= 0; --winNdx) {
Slog.v(TAG_WM, " #" + winNdx + ": " + windows.get(winNdx));
}
}
void dumpTokens(PrintWriter pw, boolean dumpAll) {
if (mTokenMap.isEmpty()) {
return;
}
pw.println(" Display #" + mDisplayId);
final Iterator<WindowToken> it = mTokenMap.values().iterator();
while (it.hasNext()) {
final WindowToken token = it.next();
pw.print(" ");
pw.print(token);
if (dumpAll) {
pw.println(':');
token.dump(pw, " ");
} else {
pw.println();
}
}
}
void enableSurfaceTrace(FileDescriptor fd) {
for (int i = mWindows.size() - 1; i >= 0; i--) {
final WindowState win = mWindows.get(i);
win.mWinAnimator.enableSurfaceTrace(fd);
}
}
void disableSurfaceTrace() {
for (int i = mWindows.size() - 1; i >= 0; i--) {
final WindowState win = mWindows.get(i);
win.mWinAnimator.disableSurfaceTrace();
}
}
static final class GetWindowOnDisplaySearchResult {
boolean reachedToken;
WindowState foundWindow;
void reset() {
reachedToken = false;
foundWindow = null;
}
}
static final class TaskForResizePointSearchResult {
boolean searchDone;
Task taskForResize;
void reset() {
searchDone = false;
taskForResize = null;
}
}
/**
* Base class for any direct child window container of {@link #DisplayContent} need to inherit
* from. This is mainly a pass through class that allows {@link #DisplayContent} to have
* homogeneous children type which is currently required by sub-classes of
* {@link WindowContainer} class.
*/
static class DisplayChildWindowContainer<E extends WindowContainer> extends WindowContainer<E> {
int size() {
return mChildren.size();
}
E get(int index) {
return mChildren.get(index);
}
@Override
boolean fillsParent() {
return true;
}
@Override
boolean isVisible() {
return true;
}
}
/**
* Window container class that contains all containers on this display relating to Apps.
* I.e Activities.
*/
private class TaskStackContainers extends DisplayChildWindowContainer<TaskStack> {
void attachStack(TaskStack stack, boolean onTop) {
if (stack.mStackId == HOME_STACK_ID) {
if (mHomeStack != null) {
throw new IllegalArgumentException("attachStack: HOME_STACK_ID (0) not first.");
}
mHomeStack = stack;
}
addChild(stack, onTop);
stack.onDisplayChanged(DisplayContent.this);
}
void moveStack(TaskStack stack, boolean toTop) {
if (StackId.isAlwaysOnTop(stack.mStackId) && !toTop) {
// This stack is always-on-top silly...
Slog.w(TAG_WM, "Ignoring move of always-on-top stack=" + stack + " to bottom");
return;
}
if (!mChildren.contains(stack)) {
Slog.wtf(TAG_WM, "moving stack that was not added: " + stack, new Throwable());
}
removeChild(stack);
addChild(stack, toTop);
}
private void addChild(TaskStack stack, boolean toTop) {
int addIndex = toTop ? mChildren.size() : 0;
if (toTop
&& mService.isStackVisibleLocked(PINNED_STACK_ID)
&& stack.mStackId != PINNED_STACK_ID) {
// The pinned stack is always the top most stack (always-on-top) when it is visible.
// So, stack is moved just below the pinned stack.
addIndex--;
TaskStack topStack = mChildren.get(addIndex);
if (topStack.mStackId != PINNED_STACK_ID) {
throw new IllegalStateException("Pinned stack isn't top stack??? " + mChildren);
}
}
addChild(stack, addIndex);
setLayoutNeeded();
}
}
/**
* Window container class that contains all containers on this display that are not related to
* Apps. E.g. status bar.
*/
private static class NonAppWindowContainers extends DisplayChildWindowContainer<WindowToken> {
}
}