| /* |
| * 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.server.wm; |
| |
| import static android.app.WallpaperManager.COMMAND_FREEZE; |
| import static android.app.WallpaperManager.COMMAND_UNFREEZE; |
| import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; |
| import static android.view.Display.DEFAULT_DISPLAY; |
| import static android.view.ViewGroup.LayoutParams.MATCH_PARENT; |
| import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED; |
| import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION; |
| import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER; |
| import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER; |
| |
| import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_WALLPAPER; |
| import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER; |
| import static com.android.server.wm.WindowContainer.AnimationFlags.PARENTS; |
| import static com.android.server.wm.WindowContainer.AnimationFlags.TRANSITION; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_SCREENSHOT; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER; |
| 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.WALLPAPER_DRAW_PENDING_TIMEOUT; |
| |
| import android.annotation.Nullable; |
| import android.graphics.Bitmap; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.os.Bundle; |
| import android.os.Debug; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.util.ArraySet; |
| import android.util.MathUtils; |
| import android.util.Slog; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| import android.view.SurfaceControl; |
| import android.view.WindowManager; |
| import android.view.animation.Animation; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.protolog.ProtoLogImpl; |
| import com.android.internal.protolog.common.ProtoLog; |
| import com.android.internal.util.ToBooleanFunction; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.function.Consumer; |
| |
| /** |
| * Controls wallpaper windows visibility, ordering, and so on. |
| * NOTE: All methods in this class must be called with the window manager service lock held. |
| */ |
| class WallpaperController { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "WallpaperController" : TAG_WM; |
| private WindowManagerService mService; |
| private final DisplayContent mDisplayContent; |
| |
| private final ArrayList<WallpaperWindowToken> mWallpaperTokens = new ArrayList<>(); |
| |
| // If non-null, this is the currently visible window that is associated |
| // with the wallpaper. |
| private WindowState mWallpaperTarget = null; |
| // If non-null, we are in the middle of animating from one wallpaper target |
| // to another, and this is the previous wallpaper target. |
| private WindowState mPrevWallpaperTarget = null; |
| |
| private float mLastWallpaperX = -1; |
| private float mLastWallpaperY = -1; |
| private float mLastWallpaperXStep = -1; |
| private float mLastWallpaperYStep = -1; |
| private float mLastWallpaperZoomOut = 0; |
| private int mLastWallpaperDisplayOffsetX = Integer.MIN_VALUE; |
| private int mLastWallpaperDisplayOffsetY = Integer.MIN_VALUE; |
| private final float mMaxWallpaperScale; |
| // Whether COMMAND_FREEZE was dispatched. |
| private boolean mLastFrozen = false; |
| |
| // This is set when we are waiting for a wallpaper to tell us it is done |
| // changing its scroll position. |
| private WindowState mWaitingOnWallpaper; |
| |
| // The last time we had a timeout when waiting for a wallpaper. |
| private long mLastWallpaperTimeoutTime; |
| // We give a wallpaper up to 150ms to finish scrolling. |
| private static final long WALLPAPER_TIMEOUT = 150; |
| // Time we wait after a timeout before trying to wait again. |
| private static final long WALLPAPER_TIMEOUT_RECOVERY = 10000; |
| |
| // We give a wallpaper up to 500ms to finish drawing before playing app transitions. |
| private static final long WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION = 500; |
| private static final int WALLPAPER_DRAW_NORMAL = 0; |
| private static final int WALLPAPER_DRAW_PENDING = 1; |
| private static final int WALLPAPER_DRAW_TIMEOUT = 2; |
| private int mWallpaperDrawState = WALLPAPER_DRAW_NORMAL; |
| |
| private boolean mShouldUpdateZoom; |
| |
| /** |
| * Temporary storage for taking a screenshot of the wallpaper. |
| * @see #screenshotWallpaperLocked() |
| */ |
| private WindowState mTmpTopWallpaper; |
| |
| @Nullable private Point mLargestDisplaySize = null; |
| |
| private final FindWallpaperTargetResult mFindResults = new FindWallpaperTargetResult(); |
| |
| private boolean mShouldOffsetWallpaperCenter; |
| |
| private final ToBooleanFunction<WindowState> mFindWallpaperTargetFunction = w -> { |
| if ((w.mAttrs.type == TYPE_WALLPAPER)) { |
| if (mFindResults.topWallpaper == null || mFindResults.resetTopWallpaper) { |
| mFindResults.setTopWallpaper(w); |
| mFindResults.resetTopWallpaper = false; |
| } |
| return false; |
| } |
| |
| mFindResults.resetTopWallpaper = true; |
| if (!w.mTransitionController.isShellTransitionsEnabled()) { |
| if (w.mActivityRecord != null && !w.mActivityRecord.isVisible() |
| && !w.mActivityRecord.isAnimating(TRANSITION | PARENTS)) { |
| // If this window's app token is hidden and not animating, it is of no interest. |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Skipping hidden and not animating token: " + w); |
| return false; |
| } |
| } else { |
| final ActivityRecord ar = w.mActivityRecord; |
| final TransitionController tc = w.mTransitionController; |
| // The animating window can still be visible on screen if it is in transition, so we |
| // should check whether this window can be wallpaper target even when visibleRequested |
| // is false. |
| if (ar != null && !ar.isVisibleRequested() && !tc.inTransition(ar)) { |
| // An activity that is not going to remain visible shouldn't be the target. |
| return false; |
| } |
| } |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Win " + w + ": isOnScreen=" + w.isOnScreen() |
| + " mDrawState=" + w.mWinAnimator.mDrawState); |
| |
| if (w.mWillReplaceWindow && mWallpaperTarget == null |
| && !mFindResults.useTopWallpaperAsTarget) { |
| // When we are replacing a window and there was wallpaper before replacement, we want to |
| // keep the window until the new windows fully appear and can determine the visibility, |
| // to avoid flickering. |
| mFindResults.setUseTopWallpaperAsTarget(true); |
| } |
| |
| final WindowContainer animatingContainer = w.mActivityRecord != null |
| ? w.mActivityRecord.getAnimatingContainer() : null; |
| final boolean keyguardGoingAwayWithWallpaper = (animatingContainer != null |
| && animatingContainer.isAnimating(TRANSITION | PARENTS) |
| && AppTransition.isKeyguardGoingAwayTransitOld(animatingContainer.mTransit) |
| && (animatingContainer.mTransitFlags |
| & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER) != 0); |
| |
| boolean needsShowWhenLockedWallpaper = false; |
| if ((w.mAttrs.flags & FLAG_SHOW_WHEN_LOCKED) != 0 && mService.mPolicy.isKeyguardLocked()) { |
| final TransitionController tc = w.mTransitionController; |
| final boolean isInTransition = tc.isShellTransitionsEnabled() |
| && tc.inTransition(w); |
| if (mService.mPolicy.isKeyguardOccluded() || mService.mPolicy.isKeyguardUnoccluding() |
| || isInTransition) { |
| // The lowest show when locked window decides whether we need to put the wallpaper |
| // behind. |
| needsShowWhenLockedWallpaper = !isFullscreen(w.mAttrs) |
| || (w.mActivityRecord != null && !w.mActivityRecord.fillsParent()); |
| } |
| } |
| |
| if (keyguardGoingAwayWithWallpaper || needsShowWhenLockedWallpaper) { |
| // Keep the wallpaper during Keyguard exit but also when it's needed for a |
| // non-fullscreen show when locked activity. |
| mFindResults.setUseTopWallpaperAsTarget(true); |
| } |
| |
| final boolean animationWallpaper = animatingContainer != null |
| && animatingContainer.getAnimation() != null |
| && animatingContainer.getAnimation().getShowWallpaper(); |
| final boolean hasWallpaper = w.hasWallpaper() || animationWallpaper; |
| if (isRecentsTransitionTarget(w) || isBackAnimationTarget(w)) { |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Found recents animation wallpaper target: " + w); |
| mFindResults.setWallpaperTarget(w); |
| return true; |
| } else if (hasWallpaper && w.isOnScreen() |
| && (mWallpaperTarget == w || w.isDrawFinishedLw())) { |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Found wallpaper target: " + w); |
| mFindResults.setWallpaperTarget(w); |
| if (w == mWallpaperTarget && w.isAnimating(TRANSITION | PARENTS)) { |
| // The current wallpaper target is animating, so we'll look behind it for |
| // another possible target and figure out what is going on later. |
| if (DEBUG_WALLPAPER) Slog.v(TAG, |
| "Win " + w + ": token animating, looking behind."); |
| } |
| mFindResults.setIsWallpaperTargetForLetterbox(w.hasWallpaperForLetterboxBackground()); |
| // While the keyguard is going away, both notification shade and a normal activity such |
| // as a launcher can satisfy criteria for a wallpaper target. In this case, we should |
| // chose the normal activity, otherwise wallpaper becomes invisible when a new animation |
| // starts before the keyguard going away animation finishes. |
| return w.mActivityRecord != null; |
| } |
| return false; |
| }; |
| |
| private boolean isRecentsTransitionTarget(WindowState w) { |
| if (w.mTransitionController.isShellTransitionsEnabled()) { |
| // Because the recents activity is invisible in background while keyguard is occluded |
| // (the activity window is on screen while keyguard is locked) with recents animation, |
| // the task animating by recents needs to be wallpaper target to make wallpaper visible. |
| // While for unlocked case, because recents activity will be moved to top, it can be |
| // the wallpaper target naturally. |
| return w.mActivityRecord != null && w.mAttrs.type == TYPE_BASE_APPLICATION |
| && mDisplayContent.isKeyguardLocked() |
| && w.mTransitionController.isTransientHide(w.getTask()); |
| } |
| // The window is either the recents activity or is in the task animating by the recents. |
| final RecentsAnimationController controller = mService.getRecentsAnimationController(); |
| return controller != null && controller.isWallpaperVisible(w); |
| } |
| |
| private boolean isBackAnimationTarget(WindowState w) { |
| // The window is either the back activity or is in the task animating by the back gesture. |
| final BackNaviAnimationController bthController = mService.getBackNaviAnimationController(); |
| return bthController != null && bthController.isWallpaperVisible(w); |
| } |
| |
| |
| /** |
| * @see #computeLastWallpaperZoomOut() |
| */ |
| private Consumer<WindowState> mComputeMaxZoomOutFunction = windowState -> { |
| if (!windowState.mIsWallpaper |
| && Float.compare(windowState.mWallpaperZoomOut, mLastWallpaperZoomOut) > 0) { |
| mLastWallpaperZoomOut = windowState.mWallpaperZoomOut; |
| } |
| }; |
| |
| WallpaperController(WindowManagerService service, DisplayContent displayContent) { |
| mService = service; |
| mDisplayContent = displayContent; |
| mMaxWallpaperScale = service.mContext.getResources() |
| .getFloat(com.android.internal.R.dimen.config_wallpaperMaxScale); |
| mShouldOffsetWallpaperCenter = service.mContext.getResources() |
| .getBoolean( |
| com.android.internal.R.bool.config_offsetWallpaperToCenterOfLargestDisplay); |
| } |
| |
| void resetLargestDisplay(Display display) { |
| if (display != null && display.getType() == Display.TYPE_INTERNAL) { |
| mLargestDisplaySize = null; |
| } |
| } |
| |
| @VisibleForTesting void setShouldOffsetWallpaperCenter(boolean shouldOffset) { |
| mShouldOffsetWallpaperCenter = shouldOffset; |
| } |
| |
| @Nullable private Point findLargestDisplaySize() { |
| if (!mShouldOffsetWallpaperCenter) { |
| return null; |
| } |
| Point largestDisplaySize = new Point(); |
| List<DisplayInfo> possibleDisplayInfo = |
| mService.getPossibleDisplayInfoLocked(DEFAULT_DISPLAY); |
| for (int i = 0; i < possibleDisplayInfo.size(); i++) { |
| DisplayInfo displayInfo = possibleDisplayInfo.get(i); |
| if (displayInfo.type == Display.TYPE_INTERNAL |
| && Math.max(displayInfo.logicalWidth, displayInfo.logicalHeight) |
| > Math.max(largestDisplaySize.x, largestDisplaySize.y)) { |
| largestDisplaySize.set(displayInfo.logicalWidth, |
| displayInfo.logicalHeight); |
| } |
| } |
| return largestDisplaySize; |
| } |
| |
| WindowState getWallpaperTarget() { |
| return mWallpaperTarget; |
| } |
| |
| boolean isWallpaperTarget(WindowState win) { |
| return win == mWallpaperTarget; |
| } |
| |
| boolean isBelowWallpaperTarget(WindowState win) { |
| return mWallpaperTarget != null && mWallpaperTarget.mLayer >= win.mBaseLayer; |
| } |
| |
| boolean isWallpaperVisible() { |
| for (int i = mWallpaperTokens.size() - 1; i >= 0; --i) { |
| if (mWallpaperTokens.get(i).isVisible()) return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Starts {@param a} on all wallpaper windows. |
| */ |
| void startWallpaperAnimation(Animation a) { |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenNdx); |
| token.startAnimation(a); |
| } |
| } |
| |
| private boolean shouldWallpaperBeVisible(WindowState wallpaperTarget) { |
| if (DEBUG_WALLPAPER) { |
| Slog.v(TAG, "Wallpaper vis: target " + wallpaperTarget + " prev=" |
| + mPrevWallpaperTarget); |
| } |
| return wallpaperTarget != null || mPrevWallpaperTarget != null; |
| } |
| |
| boolean isWallpaperTargetAnimating() { |
| return mWallpaperTarget != null && mWallpaperTarget.isAnimating(TRANSITION | PARENTS) |
| && (mWallpaperTarget.mActivityRecord == null |
| || !mWallpaperTarget.mActivityRecord.isWaitingForTransitionStart()); |
| } |
| |
| void updateWallpaperVisibility() { |
| final boolean visible = shouldWallpaperBeVisible(mWallpaperTarget); |
| |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenNdx); |
| token.setVisibility(visible); |
| } |
| } |
| |
| void hideDeferredWallpapersIfNeededLegacy() { |
| for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(i); |
| if (!token.isVisibleRequested()) { |
| token.commitVisibility(false); |
| } |
| } |
| } |
| |
| void hideWallpapers(final WindowState winGoingAway) { |
| if (mWallpaperTarget != null |
| && (mWallpaperTarget != winGoingAway || mPrevWallpaperTarget != null)) { |
| return; |
| } |
| if (mFindResults.useTopWallpaperAsTarget) { |
| // wallpaper target is going away but there has request to use top wallpaper |
| // Keep wallpaper visible. |
| return; |
| } |
| for (int i = mWallpaperTokens.size() - 1; i >= 0; i--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(i); |
| token.setVisibility(false); |
| if (ProtoLogImpl.isEnabled(WM_DEBUG_WALLPAPER) && token.isVisible()) { |
| ProtoLog.d(WM_DEBUG_WALLPAPER, |
| "Hiding wallpaper %s from %s target=%s prev=%s callers=%s", |
| token, winGoingAway, mWallpaperTarget, mPrevWallpaperTarget, |
| Debug.getCallers(5)); |
| } |
| } |
| } |
| |
| boolean updateWallpaperOffset(WindowState wallpaperWin, boolean sync) { |
| // Size of the display the wallpaper is rendered on. |
| final Rect lastWallpaperBounds = wallpaperWin.getLastReportedBounds(); |
| // Full size of the wallpaper (usually larger than bounds above to parallax scroll when |
| // swiping through Launcher pages). |
| final Rect wallpaperFrame = wallpaperWin.getFrame(); |
| |
| int newXOffset = 0; |
| int newYOffset = 0; |
| boolean rawChanged = false; |
| // Set the default wallpaper x-offset to either edge of the screen (depending on RTL), to |
| // match the behavior of most Launchers |
| float defaultWallpaperX = wallpaperWin.isRtl() ? 1f : 0f; |
| // "Wallpaper X" is the previous x-offset of the wallpaper (in a 0 to 1 scale). |
| // The 0 to 1 scale is because the "length" varies depending on how many home screens you |
| // have, so 0 is the left of the first home screen, and 1 is the right of the last one (for |
| // LTR, and the opposite for RTL). |
| float wpx = mLastWallpaperX >= 0 ? mLastWallpaperX : defaultWallpaperX; |
| // "Wallpaper X step size" is how much of that 0-1 is one "page" of the home screen |
| // when scrolling. |
| float wpxs = mLastWallpaperXStep >= 0 ? mLastWallpaperXStep : -1.0f; |
| // Difference between width of wallpaper image, and the last size of the wallpaper. |
| // This is the horizontal surplus from the prior configuration. |
| int availw = wallpaperFrame.width() - lastWallpaperBounds.width(); |
| |
| int displayOffset = getDisplayWidthOffset(availw, lastWallpaperBounds, |
| wallpaperWin.isRtl()); |
| availw -= displayOffset; |
| int offset = availw > 0 ? -(int)(availw * wpx + .5f) : 0; |
| if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE) { |
| // if device is LTR, then offset wallpaper to the left (the wallpaper is drawn |
| // always starting from the left of the screen). |
| offset += mLastWallpaperDisplayOffsetX; |
| } else if (!wallpaperWin.isRtl()) { |
| // In RTL the offset is calculated so that the wallpaper ends up right aligned (see |
| // offset above). |
| offset -= displayOffset; |
| } |
| newXOffset = offset; |
| |
| if (wallpaperWin.mWallpaperX != wpx || wallpaperWin.mWallpaperXStep != wpxs) { |
| wallpaperWin.mWallpaperX = wpx; |
| wallpaperWin.mWallpaperXStep = wpxs; |
| rawChanged = true; |
| } |
| |
| float wpy = mLastWallpaperY >= 0 ? mLastWallpaperY : 0.5f; |
| float wpys = mLastWallpaperYStep >= 0 ? mLastWallpaperYStep : -1.0f; |
| int availh = wallpaperWin.getFrame().bottom - wallpaperWin.getFrame().top |
| - lastWallpaperBounds.height(); |
| offset = availh > 0 ? -(int)(availh * wpy + .5f) : 0; |
| if (mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { |
| offset += mLastWallpaperDisplayOffsetY; |
| } |
| newYOffset = offset; |
| |
| if (wallpaperWin.mWallpaperY != wpy || wallpaperWin.mWallpaperYStep != wpys) { |
| wallpaperWin.mWallpaperY = wpy; |
| wallpaperWin.mWallpaperYStep = wpys; |
| rawChanged = true; |
| } |
| |
| if (Float.compare(wallpaperWin.mWallpaperZoomOut, mLastWallpaperZoomOut) != 0) { |
| wallpaperWin.mWallpaperZoomOut = mLastWallpaperZoomOut; |
| rawChanged = true; |
| } |
| |
| boolean changed = wallpaperWin.setWallpaperOffset(newXOffset, newYOffset, |
| wallpaperWin.mShouldScaleWallpaper |
| ? zoomOutToScale(wallpaperWin.mWallpaperZoomOut) : 1); |
| |
| if (rawChanged && (wallpaperWin.mAttrs.privateFlags & |
| WindowManager.LayoutParams.PRIVATE_FLAG_WANTS_OFFSET_NOTIFICATIONS) != 0) { |
| try { |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Report new wp offset " |
| + wallpaperWin + " x=" + wallpaperWin.mWallpaperX |
| + " y=" + wallpaperWin.mWallpaperY |
| + " zoom=" + wallpaperWin.mWallpaperZoomOut); |
| if (sync) { |
| mWaitingOnWallpaper = wallpaperWin; |
| } |
| wallpaperWin.mClient.dispatchWallpaperOffsets( |
| wallpaperWin.mWallpaperX, wallpaperWin.mWallpaperY, |
| wallpaperWin.mWallpaperXStep, wallpaperWin.mWallpaperYStep, |
| wallpaperWin.mWallpaperZoomOut, sync); |
| |
| if (sync) { |
| if (mWaitingOnWallpaper != null) { |
| long start = SystemClock.uptimeMillis(); |
| if ((mLastWallpaperTimeoutTime + WALLPAPER_TIMEOUT_RECOVERY) |
| < start) { |
| try { |
| if (DEBUG_WALLPAPER) Slog.v(TAG, |
| "Waiting for offset complete..."); |
| mService.mGlobalLock.wait(WALLPAPER_TIMEOUT); |
| } catch (InterruptedException e) { |
| } |
| if (DEBUG_WALLPAPER) Slog.v(TAG, "Offset complete!"); |
| if ((start + WALLPAPER_TIMEOUT) < SystemClock.uptimeMillis()) { |
| Slog.i(TAG, "Timeout waiting for wallpaper to offset: " |
| + wallpaperWin); |
| mLastWallpaperTimeoutTime = start; |
| } |
| } |
| mWaitingOnWallpaper = null; |
| } |
| } |
| } catch (RemoteException e) { |
| } |
| } |
| |
| return changed; |
| } |
| |
| /** |
| * Get an extra offset if needed ({@link #mShouldOffsetWallpaperCenter} = true, typically on |
| * multiple display devices) so that the wallpaper in a smaller display ends up centered at the |
| * same position as in the largest display of the device. |
| * |
| * Note that the wallpaper has already been cropped when set by the user, so these calculations |
| * apply to the image size for the display the wallpaper was set for. |
| * |
| * @param availWidth width available for the wallpaper offset in the current display |
| * @param displayFrame size of the "display" (parent frame) |
| * @param isRtl whether we're in an RTL configuration |
| * @return an offset to apply to the width, or 0 if the current configuration doesn't require |
| * any adjustment (either @link #mShouldOffsetWallpaperCenter} is false or we're on the largest |
| * display). |
| */ |
| private int getDisplayWidthOffset(int availWidth, Rect displayFrame, boolean isRtl) { |
| if (!mShouldOffsetWallpaperCenter) { |
| return 0; |
| } |
| if (mLargestDisplaySize == null) { |
| mLargestDisplaySize = findLargestDisplaySize(); |
| } |
| if (mLargestDisplaySize == null) { |
| return 0; |
| } |
| // Page width is the width of a Launcher "page", for pagination when swiping right. |
| int pageWidth = displayFrame.width(); |
| // Only need offset if the current size is different from the largest display, and we're |
| // in a portrait configuration |
| if (mLargestDisplaySize.x != pageWidth && displayFrame.width() < displayFrame.height()) { |
| // The wallpaper will be scaled to fit the height of the wallpaper, so if the height |
| // of the displays are different, we need to account for that scaling when calculating |
| // the offset to the center |
| float sizeRatio = (float) displayFrame.height() / mLargestDisplaySize.y; |
| // Scale the width of the largest display to match the scale of the wallpaper size in |
| // the current display |
| int adjustedLargestWidth = Math.round(mLargestDisplaySize.x * sizeRatio); |
| // Finally, find the difference between the centers, taking into account that the |
| // size of the wallpaper frame could be smaller than the screen |
| return isRtl |
| ? adjustedLargestWidth - (adjustedLargestWidth + pageWidth) / 2 |
| : Math.min(adjustedLargestWidth - pageWidth, availWidth) / 2; |
| } |
| return 0; |
| } |
| |
| void setWindowWallpaperPosition( |
| WindowState window, float x, float y, float xStep, float yStep) { |
| if (window.mWallpaperX != x || window.mWallpaperY != y) { |
| window.mWallpaperX = x; |
| window.mWallpaperY = y; |
| window.mWallpaperXStep = xStep; |
| window.mWallpaperYStep = yStep; |
| updateWallpaperOffsetLocked(window, true); |
| } |
| } |
| |
| void setWallpaperZoomOut(WindowState window, float zoom) { |
| if (Float.compare(window.mWallpaperZoomOut, zoom) != 0) { |
| window.mWallpaperZoomOut = zoom; |
| mShouldUpdateZoom = true; |
| updateWallpaperOffsetLocked(window, false); |
| } |
| } |
| |
| void setShouldZoomOutWallpaper(WindowState window, boolean shouldZoom) { |
| if (shouldZoom != window.mShouldScaleWallpaper) { |
| window.mShouldScaleWallpaper = shouldZoom; |
| updateWallpaperOffsetLocked(window, false); |
| } |
| } |
| |
| void setWindowWallpaperDisplayOffset(WindowState window, int x, int y) { |
| if (window.mWallpaperDisplayOffsetX != x || window.mWallpaperDisplayOffsetY != y) { |
| window.mWallpaperDisplayOffsetX = x; |
| window.mWallpaperDisplayOffsetY = y; |
| updateWallpaperOffsetLocked(window, true); |
| } |
| } |
| |
| Bundle sendWindowWallpaperCommand( |
| WindowState window, String action, int x, int y, int z, Bundle extras, boolean sync) { |
| if (window == mWallpaperTarget || window == mPrevWallpaperTarget) { |
| sendWindowWallpaperCommand(action, x, y, z, extras, sync); |
| } |
| |
| return null; |
| } |
| |
| private void sendWindowWallpaperCommand( |
| String action, int x, int y, int z, Bundle extras, boolean sync) { |
| boolean doWait = sync; |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenNdx); |
| token.sendWindowWallpaperCommand(action, x, y, z, extras, sync); |
| } |
| |
| if (doWait) { |
| // TODO: Need to wait for result. |
| } |
| } |
| |
| private void updateWallpaperOffsetLocked(WindowState changingTarget, boolean sync) { |
| WindowState target = mWallpaperTarget; |
| if (target == null && changingTarget.mToken.isVisible() |
| && changingTarget.mTransitionController.inTransition()) { |
| // If the wallpaper target was cleared during transition, still allows the visible |
| // window which may have been requested to be invisible to update the offset, e.g. |
| // zoom effect from home. |
| target = changingTarget; |
| } |
| if (target != null) { |
| if (target.mWallpaperX >= 0) { |
| mLastWallpaperX = target.mWallpaperX; |
| } else if (changingTarget.mWallpaperX >= 0) { |
| mLastWallpaperX = changingTarget.mWallpaperX; |
| } |
| if (target.mWallpaperY >= 0) { |
| mLastWallpaperY = target.mWallpaperY; |
| } else if (changingTarget.mWallpaperY >= 0) { |
| mLastWallpaperY = changingTarget.mWallpaperY; |
| } |
| computeLastWallpaperZoomOut(); |
| if (target.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetX = target.mWallpaperDisplayOffsetX; |
| } else if (changingTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetX = changingTarget.mWallpaperDisplayOffsetX; |
| } |
| if (target.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetY = target.mWallpaperDisplayOffsetY; |
| } else if (changingTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetY = changingTarget.mWallpaperDisplayOffsetY; |
| } |
| if (target.mWallpaperXStep >= 0) { |
| mLastWallpaperXStep = target.mWallpaperXStep; |
| } else if (changingTarget.mWallpaperXStep >= 0) { |
| mLastWallpaperXStep = changingTarget.mWallpaperXStep; |
| } |
| if (target.mWallpaperYStep >= 0) { |
| mLastWallpaperYStep = target.mWallpaperYStep; |
| } else if (changingTarget.mWallpaperYStep >= 0) { |
| mLastWallpaperYStep = changingTarget.mWallpaperYStep; |
| } |
| } |
| |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| mWallpaperTokens.get(curTokenNdx).updateWallpaperOffset(sync); |
| } |
| } |
| |
| void clearLastWallpaperTimeoutTime() { |
| mLastWallpaperTimeoutTime = 0; |
| } |
| |
| void wallpaperCommandComplete(IBinder window) { |
| if (mWaitingOnWallpaper != null && |
| mWaitingOnWallpaper.mClient.asBinder() == window) { |
| mWaitingOnWallpaper = null; |
| mService.mGlobalLock.notifyAll(); |
| } |
| } |
| |
| void wallpaperOffsetsComplete(IBinder window) { |
| if (mWaitingOnWallpaper != null && |
| mWaitingOnWallpaper.mClient.asBinder() == window) { |
| mWaitingOnWallpaper = null; |
| mService.mGlobalLock.notifyAll(); |
| } |
| } |
| |
| private void findWallpaperTarget() { |
| mFindResults.reset(); |
| if (mDisplayContent.getDefaultTaskDisplayArea() |
| .isRootTaskVisible(WINDOWING_MODE_FREEFORM)) { |
| // In freeform mode we set the wallpaper as its own target, so we don't need an |
| // additional window to make it visible. |
| mFindResults.setUseTopWallpaperAsTarget(true); |
| } |
| |
| mDisplayContent.forAllWindows(mFindWallpaperTargetFunction, true /* traverseTopToBottom */); |
| |
| if (mFindResults.wallpaperTarget == null && mFindResults.useTopWallpaperAsTarget) { |
| mFindResults.setWallpaperTarget(mFindResults.topWallpaper); |
| } |
| } |
| |
| private boolean isFullscreen(WindowManager.LayoutParams attrs) { |
| return attrs.x == 0 && attrs.y == 0 |
| && attrs.width == MATCH_PARENT && attrs.height == MATCH_PARENT; |
| } |
| |
| /** Updates the target wallpaper if needed and returns true if an update happened. */ |
| private void updateWallpaperWindowsTarget(FindWallpaperTargetResult result) { |
| |
| WindowState wallpaperTarget = result.wallpaperTarget; |
| |
| if (mWallpaperTarget == wallpaperTarget |
| || (mPrevWallpaperTarget != null && mPrevWallpaperTarget == wallpaperTarget)) { |
| |
| if (mPrevWallpaperTarget == null) { |
| return; |
| } |
| |
| // Is it time to stop animating? |
| if (!mPrevWallpaperTarget.isAnimatingLw()) { |
| ProtoLog.v(WM_DEBUG_WALLPAPER, "No longer animating wallpaper targets!"); |
| mPrevWallpaperTarget = null; |
| mWallpaperTarget = wallpaperTarget; |
| } |
| return; |
| } |
| |
| ProtoLog.v(WM_DEBUG_WALLPAPER, "New wallpaper target: %s prevTarget: %s caller=%s", |
| wallpaperTarget, mWallpaperTarget, Debug.getCallers(5)); |
| |
| mPrevWallpaperTarget = null; |
| |
| final WindowState prevWallpaperTarget = mWallpaperTarget; |
| mWallpaperTarget = wallpaperTarget; |
| |
| if (prevWallpaperTarget == null && wallpaperTarget != null) { |
| updateWallpaperOffsetLocked(mWallpaperTarget, false); |
| } |
| if (wallpaperTarget == null || prevWallpaperTarget == null) { |
| return; |
| } |
| |
| // Now what is happening... if the current and new targets are animating, |
| // then we are in our super special mode! |
| boolean oldAnim = prevWallpaperTarget.isAnimatingLw(); |
| boolean foundAnim = wallpaperTarget.isAnimatingLw(); |
| ProtoLog.v(WM_DEBUG_WALLPAPER, "New animation: %s old animation: %s", |
| foundAnim, oldAnim); |
| |
| if (!foundAnim || !oldAnim) { |
| return; |
| } |
| |
| if (mDisplayContent.getWindow(w -> w == prevWallpaperTarget) == null) { |
| return; |
| } |
| |
| final boolean newTargetHidden = wallpaperTarget.mActivityRecord != null |
| && !wallpaperTarget.mActivityRecord.mVisibleRequested; |
| final boolean oldTargetHidden = prevWallpaperTarget.mActivityRecord != null |
| && !prevWallpaperTarget.mActivityRecord.mVisibleRequested; |
| |
| ProtoLog.v(WM_DEBUG_WALLPAPER, "Animating wallpapers: " |
| + "old: %s hidden=%b new: %s hidden=%b", |
| prevWallpaperTarget, oldTargetHidden, wallpaperTarget, newTargetHidden); |
| |
| mPrevWallpaperTarget = prevWallpaperTarget; |
| |
| if (newTargetHidden && !oldTargetHidden) { |
| ProtoLog.v(WM_DEBUG_WALLPAPER, "Old wallpaper still the target."); |
| // Use the old target if new target is hidden but old target |
| // is not. If they're both hidden, still use the new target. |
| mWallpaperTarget = prevWallpaperTarget; |
| } else if (newTargetHidden == oldTargetHidden |
| && !mDisplayContent.mOpeningApps.contains(wallpaperTarget.mActivityRecord) |
| && (mDisplayContent.mOpeningApps.contains(prevWallpaperTarget.mActivityRecord) |
| || mDisplayContent.mClosingApps.contains(prevWallpaperTarget.mActivityRecord))) { |
| // If they're both hidden (or both not hidden), prefer the one that's currently in |
| // opening or closing app list, this allows transition selection logic to better |
| // determine the wallpaper status of opening/closing apps. |
| mWallpaperTarget = prevWallpaperTarget; |
| } |
| |
| result.setWallpaperTarget(wallpaperTarget); |
| } |
| |
| private void updateWallpaperTokens(boolean visible) { |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenNdx); |
| if (token.updateWallpaperWindows(visible)) { |
| token.mDisplayContent.assignWindowLayers(false /* setLayoutNeeded */); |
| } |
| } |
| } |
| |
| void adjustWallpaperWindows() { |
| mDisplayContent.mWallpaperMayChange = false; |
| |
| // First find top-most window that has asked to be on top of the wallpaper; |
| // all wallpapers go behind it. |
| findWallpaperTarget(); |
| updateWallpaperWindowsTarget(mFindResults); |
| |
| // The window is visible to the compositor...but is it visible to the user? |
| // That is what the wallpaper cares about. |
| final boolean visible = mWallpaperTarget != null; |
| if (DEBUG_WALLPAPER) { |
| Slog.v(TAG, "Wallpaper visibility: " + visible + " at display " |
| + mDisplayContent.getDisplayId()); |
| } |
| |
| if (visible) { |
| if (mWallpaperTarget.mWallpaperX >= 0) { |
| mLastWallpaperX = mWallpaperTarget.mWallpaperX; |
| mLastWallpaperXStep = mWallpaperTarget.mWallpaperXStep; |
| } |
| computeLastWallpaperZoomOut(); |
| if (mWallpaperTarget.mWallpaperY >= 0) { |
| mLastWallpaperY = mWallpaperTarget.mWallpaperY; |
| mLastWallpaperYStep = mWallpaperTarget.mWallpaperYStep; |
| } |
| if (mWallpaperTarget.mWallpaperDisplayOffsetX != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetX = mWallpaperTarget.mWallpaperDisplayOffsetX; |
| } |
| if (mWallpaperTarget.mWallpaperDisplayOffsetY != Integer.MIN_VALUE) { |
| mLastWallpaperDisplayOffsetY = mWallpaperTarget.mWallpaperDisplayOffsetY; |
| } |
| } |
| |
| updateWallpaperTokens(visible); |
| |
| if (visible && mLastFrozen != mFindResults.isWallpaperTargetForLetterbox) { |
| mLastFrozen = mFindResults.isWallpaperTargetForLetterbox; |
| sendWindowWallpaperCommand( |
| mFindResults.isWallpaperTargetForLetterbox ? COMMAND_FREEZE : COMMAND_UNFREEZE, |
| /* x= */ 0, /* y= */ 0, /* z= */ 0, /* extras= */ null, /* sync= */ false); |
| } |
| |
| ProtoLog.d(WM_DEBUG_WALLPAPER, "New wallpaper: target=%s prev=%s", |
| mWallpaperTarget, mPrevWallpaperTarget); |
| } |
| |
| boolean processWallpaperDrawPendingTimeout() { |
| if (mWallpaperDrawState == WALLPAPER_DRAW_PENDING) { |
| mWallpaperDrawState = WALLPAPER_DRAW_TIMEOUT; |
| if (DEBUG_WALLPAPER) { |
| Slog.v(TAG, "*** WALLPAPER DRAW TIMEOUT"); |
| } |
| |
| // If there was a pending recents animation, start the animation anyways (it's better |
| // to not see the wallpaper than for the animation to not start) |
| if (mService.getRecentsAnimationController() != null) { |
| mService.getRecentsAnimationController().startAnimation(); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| boolean wallpaperTransitionReady() { |
| boolean transitionReady = true; |
| boolean wallpaperReady = true; |
| for (int curTokenIndex = mWallpaperTokens.size() - 1; |
| curTokenIndex >= 0 && wallpaperReady; curTokenIndex--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenIndex); |
| if (token.hasVisibleNotDrawnWallpaper()) { |
| // We've told this wallpaper to be visible, but it is not drawn yet |
| wallpaperReady = false; |
| if (mWallpaperDrawState != WALLPAPER_DRAW_TIMEOUT) { |
| // wait for this wallpaper until it is drawn or timeout |
| transitionReady = false; |
| } |
| if (mWallpaperDrawState == WALLPAPER_DRAW_NORMAL) { |
| mWallpaperDrawState = WALLPAPER_DRAW_PENDING; |
| mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT, this); |
| mService.mH.sendMessageDelayed( |
| mService.mH.obtainMessage(WALLPAPER_DRAW_PENDING_TIMEOUT, this), |
| WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION); |
| |
| } |
| if (DEBUG_WALLPAPER) { |
| Slog.v(TAG, |
| "Wallpaper should be visible but has not been drawn yet. " |
| + "mWallpaperDrawState=" + mWallpaperDrawState); |
| } |
| break; |
| } |
| } |
| if (wallpaperReady) { |
| mWallpaperDrawState = WALLPAPER_DRAW_NORMAL; |
| mService.mH.removeMessages(WALLPAPER_DRAW_PENDING_TIMEOUT, this); |
| } |
| |
| return transitionReady; |
| } |
| |
| /** |
| * Adjusts the wallpaper windows if the input display has a pending wallpaper layout or one of |
| * the opening apps should be a wallpaper target. |
| */ |
| void adjustWallpaperWindowsForAppTransitionIfNeeded(ArraySet<ActivityRecord> openingApps) { |
| boolean adjust = false; |
| if ((mDisplayContent.pendingLayoutChanges & FINISH_LAYOUT_REDO_WALLPAPER) != 0) { |
| adjust = true; |
| } else { |
| for (int i = openingApps.size() - 1; i >= 0; --i) { |
| final ActivityRecord activity = openingApps.valueAt(i); |
| if (activity.windowsCanBeWallpaperTarget()) { |
| adjust = true; |
| break; |
| } |
| } |
| } |
| |
| if (adjust) { |
| adjustWallpaperWindows(); |
| } |
| } |
| |
| void addWallpaperToken(WallpaperWindowToken token) { |
| mWallpaperTokens.add(token); |
| } |
| |
| void removeWallpaperToken(WallpaperWindowToken token) { |
| mWallpaperTokens.remove(token); |
| } |
| |
| |
| @VisibleForTesting |
| boolean canScreenshotWallpaper() { |
| return canScreenshotWallpaper(getTopVisibleWallpaper()); |
| } |
| |
| private boolean canScreenshotWallpaper(WindowState wallpaperWindowState) { |
| if (!mService.mPolicy.isScreenOn()) { |
| if (DEBUG_SCREENSHOT) { |
| Slog.i(TAG_WM, "Attempted to take screenshot while display was off."); |
| } |
| return false; |
| } |
| |
| if (wallpaperWindowState == null) { |
| if (DEBUG_SCREENSHOT) { |
| Slog.i(TAG_WM, "No visible wallpaper to screenshot"); |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Take a screenshot of the wallpaper if it's visible. |
| * |
| * @return Bitmap of the wallpaper |
| */ |
| Bitmap screenshotWallpaperLocked() { |
| final WindowState wallpaperWindowState = getTopVisibleWallpaper(); |
| if (!canScreenshotWallpaper(wallpaperWindowState)) { |
| return null; |
| } |
| |
| final Rect bounds = wallpaperWindowState.getBounds(); |
| bounds.offsetTo(0, 0); |
| |
| SurfaceControl.ScreenshotHardwareBuffer wallpaperBuffer = SurfaceControl.captureLayers( |
| wallpaperWindowState.getSurfaceControl(), bounds, 1 /* frameScale */); |
| |
| if (wallpaperBuffer == null) { |
| Slog.w(TAG_WM, "Failed to screenshot wallpaper"); |
| return null; |
| } |
| return Bitmap.wrapHardwareBuffer( |
| wallpaperBuffer.getHardwareBuffer(), wallpaperBuffer.getColorSpace()); |
| } |
| |
| /** |
| * Mirrors the visible wallpaper if it's available. |
| * |
| * @return A SurfaceControl for the parent of the mirrored wallpaper. |
| */ |
| SurfaceControl mirrorWallpaperSurface() { |
| final WindowState wallpaperWindowState = getTopVisibleWallpaper(); |
| return wallpaperWindowState != null |
| ? SurfaceControl.mirrorSurface(wallpaperWindowState.getSurfaceControl()) |
| : null; |
| } |
| |
| WindowState getTopVisibleWallpaper() { |
| mTmpTopWallpaper = null; |
| |
| for (int curTokenNdx = mWallpaperTokens.size() - 1; curTokenNdx >= 0; curTokenNdx--) { |
| final WallpaperWindowToken token = mWallpaperTokens.get(curTokenNdx); |
| token.forAllWindows(w -> { |
| final WindowStateAnimator winAnim = w.mWinAnimator; |
| if (winAnim != null && winAnim.getShown() && winAnim.mLastAlpha > 0f) { |
| mTmpTopWallpaper = w; |
| return true; |
| } |
| return false; |
| }, true /* traverseTopToBottom */); |
| } |
| |
| return mTmpTopWallpaper; |
| } |
| |
| /** |
| * Each window can request a zoom, example: |
| * - User is in overview, zoomed out. |
| * - User also pulls down the shade. |
| * |
| * This means that we always have to choose the largest zoom out that we have, otherwise |
| * we'll have conflicts and break the "depth system" mental model. |
| */ |
| private void computeLastWallpaperZoomOut() { |
| if (mShouldUpdateZoom) { |
| mLastWallpaperZoomOut = 0; |
| mDisplayContent.forAllWindows(mComputeMaxZoomOutFunction, true); |
| mShouldUpdateZoom = false; |
| } |
| } |
| |
| private float zoomOutToScale(float zoom) { |
| return MathUtils.lerp(1, mMaxWallpaperScale, 1 - zoom); |
| } |
| |
| void dump(PrintWriter pw, String prefix) { |
| pw.print(prefix); pw.print("displayId="); pw.println(mDisplayContent.getDisplayId()); |
| pw.print(prefix); pw.print("mWallpaperTarget="); pw.println(mWallpaperTarget); |
| if (mPrevWallpaperTarget != null) { |
| pw.print(prefix); pw.print("mPrevWallpaperTarget="); pw.println(mPrevWallpaperTarget); |
| } |
| pw.print(prefix); pw.print("mLastWallpaperX="); pw.print(mLastWallpaperX); |
| pw.print(" mLastWallpaperY="); pw.println(mLastWallpaperY); |
| if (mLastWallpaperDisplayOffsetX != Integer.MIN_VALUE |
| || mLastWallpaperDisplayOffsetY != Integer.MIN_VALUE) { |
| pw.print(prefix); |
| pw.print("mLastWallpaperDisplayOffsetX="); pw.print(mLastWallpaperDisplayOffsetX); |
| pw.print(" mLastWallpaperDisplayOffsetY="); pw.println(mLastWallpaperDisplayOffsetY); |
| } |
| } |
| |
| /** Helper class for storing the results of a wallpaper target find operation. */ |
| final private static class FindWallpaperTargetResult { |
| WindowState topWallpaper = null; |
| boolean useTopWallpaperAsTarget = false; |
| WindowState wallpaperTarget = null; |
| boolean resetTopWallpaper = false; |
| boolean isWallpaperTargetForLetterbox = false; |
| |
| void setTopWallpaper(WindowState win) { |
| topWallpaper = win; |
| } |
| |
| void setWallpaperTarget(WindowState win) { |
| wallpaperTarget = win; |
| } |
| |
| void setUseTopWallpaperAsTarget(boolean topWallpaperAsTarget) { |
| useTopWallpaperAsTarget = topWallpaperAsTarget; |
| } |
| |
| void setIsWallpaperTargetForLetterbox(boolean isWallpaperTargetForLetterbox) { |
| this.isWallpaperTargetForLetterbox = isWallpaperTargetForLetterbox; |
| } |
| |
| void reset() { |
| topWallpaper = null; |
| wallpaperTarget = null; |
| useTopWallpaperAsTarget = false; |
| resetTopWallpaper = false; |
| isWallpaperTargetForLetterbox = false; |
| } |
| } |
| } |
