Made WallpaperControler.adjustWallpaperWindow more readable (5f61d04a) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/WallpaperController.java

+190 −150

Original line number	Diff line number	Diff line
		@@ -98,6 +98,8 @@ class WallpaperController {
		private static final int WALLPAPER_DRAW_TIMEOUT = 2;
		private int mWallpaperDrawState = WALLPAPER_DRAW_NORMAL;

		private final FindWallpaperTargetResult mFindResults = new FindWallpaperTargetResult();

		public WallpaperController(WindowManagerService service) {
		mService = service;
		}
		@@ -466,39 +468,21 @@ class WallpaperController {
		}
		}

		boolean adjustWallpaperWindows() {
		mService.mInnerFields.mWallpaperMayChange = false;
		boolean targetChanged = false;

		// TODO(multidisplay): Wallpapers on main screen only.
		final DisplayInfo displayInfo = mService.getDefaultDisplayContentLocked().getDisplayInfo();
		final int dw = displayInfo.logicalWidth;
		final int dh = displayInfo.logicalHeight;
		private void findWallpaperTarget(WindowList windows, FindWallpaperTargetResult result) {

		final WindowAnimator winAnimator = mService.mAnimator;

		// First find top-most window that has asked to be on top of the
		// wallpaper; all wallpapers go behind it.
		final WindowList windows = mService.getDefaultWindowListLocked();
		int N = windows.size();
		result.reset();
		WindowState w = null;
		WindowState foundW = null;
		int foundI = 0;
		WindowState topCurW = null;
		int topCurI = 0;
		int windowDetachedI = -1;
		int i = N;
		while (i > 0) {
		i--;
		for (int i = windows.size() - 1; i >= 0; i--) {
		w = windows.get(i);
		if ((w.mAttrs.type == TYPE_WALLPAPER)) {
		if (topCurW == null) {
		topCurW = w;
		topCurI = i;
		if (result.topWallpaper == null) {
		result.setTopWallpaper(w, i);
		}
		continue;
		}
		topCurW = null;
		result.topWallpaper = null;
		if (w != winAnimator.mWindowDetachedWallpaper && w.mAppToken != null) {
		// If this window's app token is hidden and not animating,
		// it is of no interest to us.
		@@ -511,23 +495,19 @@ class WallpaperController {
		if (DEBUG_WALLPAPER) Slog.v(TAG, "Win #" + i + " " + w + ": isOnScreen="
		+ w.isOnScreen() + " mDrawState=" + w.mWinAnimator.mDrawState);

		// If the app is executing an animation because the keyguard is going away, keep the
		// wallpaper during the animation so it doesn't flicker out.
		// If the app is executing an animation because the keyguard is going away,
		// keep the wallpaper during the animation so it doesn't flicker out.
		final boolean hasWallpaper = (w.mAttrs.flags & FLAG_SHOW_WALLPAPER) != 0
		\|\| (w.mAppToken != null
		&& w.mWinAnimator.mKeyguardGoingAwayAnimation);
		\|\| (w.mAppToken != null && w.mWinAnimator.mKeyguardGoingAwayAnimation);
		if (hasWallpaper && w.isOnScreen()
		&& (mWallpaperTarget == w \|\| w.isDrawFinishedLw())) {
		if (DEBUG_WALLPAPER) Slog.v(TAG,
		"Found wallpaper target: #" + i + "=" + w);
		foundW = w;
		foundI = i;
		if (DEBUG_WALLPAPER) Slog.v(TAG, "Found wallpaper target: #" + i + "=" + w);
		result.setWallpaperTarget(w, i);
		if (w == mWallpaperTarget && w.mWinAnimator.isAnimating()) {
		// The current wallpaper target is animating, so we'll
		// look behind it for another possible target and figure
		// out what is going on below.
		if (DEBUG_WALLPAPER) Slog.v(TAG, "Win " + w
		+ ": token animating, looking behind.");
		// 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.");
		continue;
		}
		break;
		@@ -536,76 +516,73 @@ class WallpaperController {
		}
		}

		if (foundW == null && windowDetachedI >= 0) {
		if (result.wallpaperTarget == null && windowDetachedI >= 0) {
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"Found animating detached wallpaper activity: #" + i + "=" + w);
		foundW = w;
		foundI = windowDetachedI;
		"Found animating detached wallpaper activity: #" + windowDetachedI + "=" + w);
		result.setWallpaperTarget(w, windowDetachedI);
		}

		if (mWallpaperTarget != foundW
		&& (mLowerWallpaperTarget == null \|\| mLowerWallpaperTarget != foundW)) {
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "New wallpaper target: " + foundW
		+ " oldTarget: " + mWallpaperTarget);
		}

		private boolean updateWallpaperWindowsTarget(
		WindowList windows, FindWallpaperTargetResult result) {

		boolean targetChanged = false;
		WindowState wallpaperTarget = result.wallpaperTarget;
		int wallpaperTargetIndex = result.wallpaperTargetIndex;

		if (mWallpaperTarget != wallpaperTarget
		&& (mLowerWallpaperTarget == null \|\| mLowerWallpaperTarget != wallpaperTarget)) {
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"New wallpaper target: " + wallpaperTarget + " oldTarget: " + mWallpaperTarget);

		mLowerWallpaperTarget = null;
		mUpperWallpaperTarget = null;

		WindowState oldW = mWallpaperTarget;
		mWallpaperTarget = foundW;
		mWallpaperTarget = wallpaperTarget;
		targetChanged = true;

		// Now what is happening... if the current and new targets are
		// animating, then we are in our super special mode!
		if (foundW != null && oldW != null) {
		// Now what is happening... if the current and new targets are animating,
		// then we are in our super special mode!
		if (wallpaperTarget != null && oldW != null) {
		boolean oldAnim = oldW.isAnimatingLw();
		boolean foundAnim = foundW.isAnimatingLw();
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "New animation: " + foundAnim
		+ " old animation: " + oldAnim);
		}
		boolean foundAnim = wallpaperTarget.isAnimatingLw();
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"New animation: " + foundAnim + " old animation: " + oldAnim);
		if (foundAnim && oldAnim) {
		int oldI = windows.indexOf(oldW);
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "New i: " + foundI + " old i: " + oldI);
		}
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"New i: " + wallpaperTargetIndex + " old i: " + oldI);
		if (oldI >= 0) {
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "Animating wallpapers: old#" + oldI
		+ "=" + oldW + "; new#" + foundI
		+ "=" + foundW);
		}
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"Animating wallpapers: old#" + oldI + "=" + oldW + "; new#"
		+ wallpaperTargetIndex + "=" + wallpaperTarget);

		// Set the new target correctly.
		if (foundW.mAppToken != null && foundW.mAppToken.hiddenRequested) {
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "Old wallpaper still the target.");
		}
		if (wallpaperTarget.mAppToken != null
		&& wallpaperTarget.mAppToken.hiddenRequested) {
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"Old wallpaper still the target.");
		mWallpaperTarget = oldW;
		foundW = oldW;
		foundI = oldI;
		wallpaperTarget = oldW;
		wallpaperTargetIndex = oldI;
		}
		// Now set the upper and lower wallpaper targets
		// correctly, and make sure that we are positioning
		// the wallpaper below the lower.
		else if (foundI > oldI) {
		// Now set the upper and lower wallpaper targets correctly,
		// and make sure that we are positioning the wallpaper below the lower.
		else if (wallpaperTargetIndex > oldI) {
		// The new target is on top of the old one.
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "Found target above old target.");
		}
		mUpperWallpaperTarget = foundW;
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"Found target above old target.");
		mUpperWallpaperTarget = wallpaperTarget;
		mLowerWallpaperTarget = oldW;
		foundW = oldW;
		foundI = oldI;
		wallpaperTarget = oldW;
		wallpaperTargetIndex = oldI;
		} else {
		// The new target is below the old one.
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "Found target below old target.");
		}
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG,
		"Found target below old target.");
		mUpperWallpaperTarget = oldW;
		mLowerWallpaperTarget = foundW;
		mLowerWallpaperTarget = wallpaperTarget;
		}
		}
		}
		@@ -614,29 +591,36 @@ class WallpaperController {
		} else if (mLowerWallpaperTarget != null) {
		// Is it time to stop animating?
		if (!mLowerWallpaperTarget.isAnimatingLw() \|\| !mUpperWallpaperTarget.isAnimatingLw()) {
		if (DEBUG_WALLPAPER_LIGHT) {
		Slog.v(TAG, "No longer animating wallpaper targets!");
		}
		if (DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "No longer animating wallpaper targets!");
		mLowerWallpaperTarget = null;
		mUpperWallpaperTarget = null;
		mWallpaperTarget = foundW;
		mWallpaperTarget = wallpaperTarget;
		targetChanged = true;
		}
		}

		boolean visible = foundW != null;
		result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex);
		return targetChanged;
		}

		boolean updateWallpaperWindowsTargetByLayer(
		WindowList windows, FindWallpaperTargetResult result) {

		WindowState wallpaperTarget = result.wallpaperTarget;
		int wallpaperTargetIndex = result.wallpaperTargetIndex;
		boolean visible = wallpaperTarget != null;

		if (visible) {
		// The window is visible to the compositor... but is it visible
		// to the user? That is what the wallpaper cares about.
		visible = isWallpaperVisible(foundW);
		// The window is visible to the compositor...but is it visible to the user?
		// That is what the wallpaper cares about.
		visible = isWallpaperVisible(wallpaperTarget);
		if (DEBUG_WALLPAPER) Slog.v(TAG, "Wallpaper visibility: " + visible);

		// If the wallpaper target is animating, we may need to copy
		// its layer adjustment. Only do this if we are not transfering
		// between two wallpaper targets.
		// If the wallpaper target is animating, we may need to copy its layer adjustment.
		// Only do this if we are not transferring between two wallpaper targets.
		mWallpaperAnimLayerAdjustment =
		(mLowerWallpaperTarget == null && foundW.mAppToken != null)
		? foundW.mAppToken.mAppAnimator.animLayerAdjustment : 0;
		(mLowerWallpaperTarget == null && wallpaperTarget.mAppToken != null)
		? wallpaperTarget.mAppToken.mAppAnimator.animLayerAdjustment : 0;

		final int maxLayer = (mService.mPolicy.getMaxWallpaperLayer() * TYPE_LAYER_MULTIPLIER)
		+ TYPE_LAYER_OFFSET;
		@@ -645,52 +629,37 @@ class WallpaperController {
		// need to be sure to also be behind any of its attached windows,
		// AND any starting window associated with it, AND below the
		// maximum layer the policy allows for wallpapers.
		while (foundI > 0) {
		WindowState wb = windows.get(foundI - 1);
		while (wallpaperTargetIndex > 0) {
		WindowState wb = windows.get(wallpaperTargetIndex - 1);
		if (wb.mBaseLayer < maxLayer &&
		wb.mAttachedWindow != foundW &&
		(foundW.mAttachedWindow == null \|\|
		wb.mAttachedWindow != foundW.mAttachedWindow) &&
		(wb.mAttrs.type != TYPE_APPLICATION_STARTING \|\|
		foundW.mToken == null \|\| wb.mToken != foundW.mToken)) {
		wb.mAttachedWindow != wallpaperTarget &&
		(wallpaperTarget.mAttachedWindow == null \|\|
		wb.mAttachedWindow != wallpaperTarget.mAttachedWindow) &&
		(wb.mAttrs.type != TYPE_APPLICATION_STARTING
		\|\| wallpaperTarget.mToken == null
		\|\| wb.mToken != wallpaperTarget.mToken)) {
		// This window is not related to the previous one in any
		// interesting way, so stop here.
		break;
		}
		foundW = wb;
		foundI--;
		wallpaperTarget = wb;
		wallpaperTargetIndex--;
		}
		} else {
		if (DEBUG_WALLPAPER) Slog.v(TAG, "No wallpaper target");
		}

		if (foundW == null && topCurW != null) {
		// There is no wallpaper target, so it goes at the bottom.
		// We will assume it is the same place as last time, if known.
		foundW = topCurW;
		foundI = topCurI+1;
		} else {
		// Okay i is the position immediately above the wallpaper. Look at
		// what is below it for later.
		foundW = foundI > 0 ? windows.get(foundI - 1) : null;
		result.setWallpaperTarget(wallpaperTarget, wallpaperTargetIndex);
		return visible;
		}

		if (visible) {
		if (mWallpaperTarget.mWallpaperX >= 0) {
		mLastWallpaperX = mWallpaperTarget.mWallpaperX;
		mLastWallpaperXStep = mWallpaperTarget.mWallpaperXStep;
		}
		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;
		}
		}
		boolean updateWallpaperWindowsPlacement(WindowList windows,
		WindowState wallpaperTarget, int wallpaperTargetIndex, boolean visible) {

		// TODO(multidisplay): Wallpapers on main screen only.
		final DisplayInfo displayInfo = mService.getDefaultDisplayContentLocked().getDisplayInfo();
		final int dw = displayInfo.logicalWidth;
		final int dh = displayInfo.logicalHeight;

		// Start stepping backwards from here, ensuring that our wallpaper windows
		// are correctly placed.
		@@ -722,41 +691,40 @@ class WallpaperController {
		+ wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer);

		// First, if this window is at the current index, then all is well.
		if (wallpaper == foundW) {
		foundI--;
		foundW = foundI > 0 ? windows.get(foundI - 1) : null;
		if (wallpaper == wallpaperTarget) {
		wallpaperTargetIndex--;
		wallpaperTarget = wallpaperTargetIndex > 0
		? windows.get(wallpaperTargetIndex - 1) : null;
		continue;
		}

		// The window didn't match... the current wallpaper window,
		// wherever it is, is in the wrong place, so make sure it is
		// not in the list.
		// wherever it is, is in the wrong place, so make sure it is not in the list.
		int oldIndex = windows.indexOf(wallpaper);
		if (oldIndex >= 0) {
		if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG, "Wallpaper removing at "
		+ oldIndex + ": " + wallpaper);
		if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG,
		"Wallpaper removing at " + oldIndex + ": " + wallpaper);
		windows.remove(oldIndex);
		mService.mWindowsChanged = true;
		if (oldIndex < foundI) {
		foundI--;
		if (oldIndex < wallpaperTargetIndex) {
		wallpaperTargetIndex--;
		}
		}

		// Now stick it in. For apps over wallpaper keep the wallpaper at the bottommost
		// layer. For keyguard over wallpaper put the wallpaper under the keyguard.
		int insertionIndex = 0;
		if (visible && foundW != null) {
		final int type = foundW.mAttrs.type;
		final int privateFlags = foundW.mAttrs.privateFlags;
		if (visible && wallpaperTarget != null) {
		final int type = wallpaperTarget.mAttrs.type;
		final int privateFlags = wallpaperTarget.mAttrs.privateFlags;
		if ((privateFlags & PRIVATE_FLAG_KEYGUARD) != 0
		\|\| type == TYPE_KEYGUARD_SCRIM) {
		insertionIndex = windows.indexOf(foundW);
		insertionIndex = windows.indexOf(wallpaperTarget);
		}
		}
		if (DEBUG_WALLPAPER_LIGHT \|\| DEBUG_WINDOW_MOVEMENT \|\| DEBUG_ADD_REMOVE) {
		Slog.v(TAG, "Moving wallpaper " + wallpaper
		if (DEBUG_WALLPAPER_LIGHT \|\| DEBUG_WINDOW_MOVEMENT \|\| DEBUG_ADD_REMOVE) Slog.v(TAG,
		"Moving wallpaper " + wallpaper
		+ " from " + oldIndex + " to " + insertionIndex);
		}

		windows.add(insertionIndex, wallpaper);
		mService.mWindowsChanged = true;
		@@ -764,6 +732,53 @@ class WallpaperController {
		}
		}

		return changed;
		}

		boolean adjustWallpaperWindows() {
		mService.mInnerFields.mWallpaperMayChange = false;

		final WindowList windows = mService.getDefaultWindowListLocked();
		// First find top-most window that has asked to be on top of the wallpaper;
		// all wallpapers go behind it.
		findWallpaperTarget(windows, mFindResults);
		final boolean targetChanged = updateWallpaperWindowsTarget(windows, mFindResults);
		final boolean visible = updateWallpaperWindowsTargetByLayer(windows, mFindResults);
		WindowState wallpaperTarget = mFindResults.wallpaperTarget;
		int wallpaperTargetIndex = mFindResults.wallpaperTargetIndex;

		if (wallpaperTarget == null && mFindResults.topWallpaper != null) {
		// There is no wallpaper target, so it goes at the bottom.
		// We will assume it is the same place as last time, if known.
		wallpaperTarget = mFindResults.topWallpaper;
		wallpaperTargetIndex = mFindResults.topWallpaperIndex + 1;
		} else {
		// Okay i is the position immediately above the wallpaper.
		// Look at what is below it for later.
		wallpaperTarget = wallpaperTargetIndex > 0
		? windows.get(wallpaperTargetIndex - 1) : null;
		}

		if (visible) {
		if (mWallpaperTarget.mWallpaperX >= 0) {
		mLastWallpaperX = mWallpaperTarget.mWallpaperX;
		mLastWallpaperXStep = mWallpaperTarget.mWallpaperXStep;
		}
		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;
		}
		}

		final boolean changed = updateWallpaperWindowsPlacement(
		windows, wallpaperTarget, wallpaperTargetIndex, visible);

		if (targetChanged && DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, "New wallpaper: target="
		+ mWallpaperTarget + " lower=" + mLowerWallpaperTarget + " upper="
		+ mUpperWallpaperTarget);
		@@ -859,4 +874,29 @@ class WallpaperController {
		}
		}
		}

		/** Helper class for storing the results of a wallpaper target find operation. */
		final private static class FindWallpaperTargetResult {
		int topWallpaperIndex = 0;
		WindowState topWallpaper = null;
		int wallpaperTargetIndex = 0;
		WindowState wallpaperTarget = null;

		void setTopWallpaper(WindowState win, int index) {
		topWallpaper = win;
		topWallpaperIndex = index;
		}

		void setWallpaperTarget(WindowState win, int index) {
		wallpaperTarget = win;
		wallpaperTargetIndex = index;
		}

		void reset() {
		topWallpaperIndex = 0;
		topWallpaper = null;
		wallpaperTargetIndex = 0;
		wallpaperTarget = null;
		}
		}
		}