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Commit e42d0e10 authored by Wale Ogunwale's avatar Wale Ogunwale
Browse files

Don't remove all app token windows when window client dies

AppWindowToken can contain windows from multiple clients (Processes)
If one of the client dies we shouldn't remove all windows in the app
token. We should only remove dea windows.

Bug: 28467642
Change-Id: I8be6a98e0acc79719158567114f4902066069c1b
parent a092aa43
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+15 −7
Original line number Diff line number Diff line
@@ -109,7 +109,6 @@ class AppWindowToken extends WindowToken {
    // Set to true when the token has been removed from the window mgr.
    boolean removed;

    boolean appDied;
    // Information about an application starting window if displayed.
    StartingData startingData;
    WindowState startingWindow;
@@ -476,6 +475,15 @@ class AppWindowToken extends WindowToken {
        }
    }

    boolean hasWindowsAlive() {
        for (int i = allAppWindows.size() - 1; i >= 0; i--) {
            if (!allAppWindows.get(i).mAppDied) {
                return true;
            }
        }
        return false;
    }

    void setReplacingWindows(boolean animate) {
        if (DEBUG_ADD_REMOVE) Slog.d(TAG_WM, "Marking app token " + appWindowToken
                + " with replacing windows.");
+3 −3
Original line number Diff line number Diff line
@@ -125,9 +125,9 @@ class Task implements DimLayer.DimLayerUser {
        mHomeTask = homeTask;
    }

    private boolean hasAppTokensAlive() {
    private boolean hasWindowsAlive() {
        for (int i = mAppTokens.size() - 1; i >= 0; i--) {
            if (!mAppTokens.get(i).appDied) {
            if (mAppTokens.get(i).hasWindowsAlive()) {
                return true;
            }
        }
@@ -135,7 +135,7 @@ class Task implements DimLayer.DimLayerUser {
    }

    void removeLocked() {
        if (hasAppTokensAlive() && mStack.isAnimating()) {
        if (hasWindowsAlive() && mStack.isAnimating()) {
            if (DEBUG_STACK) Slog.i(TAG, "removeTask: deferring removing taskId=" + mTaskId);
            mDeferRemoval = true;
            return;
+8 −10
Original line number Diff line number Diff line
@@ -2000,11 +2000,6 @@ public class WindowManagerService extends IWindowManager.Stub
                return WindowManagerGlobal.ADD_INVALID_DISPLAY;
            }

            if (atoken != null && atoken.appDied) {
                Slog.d(TAG_WM, "App is now revived: " + atoken);
                atoken.appDied = false;
            }

            mPolicy.adjustWindowParamsLw(win.mAttrs);
            win.setShowToOwnerOnlyLocked(mPolicy.checkShowToOwnerOnly(attrs));

@@ -2260,6 +2255,10 @@ public class WindowManagerService extends IWindowManager.Stub
    }

    void removeWindowLocked(WindowState win) {
        removeWindowLocked(win, false);
    }

    void removeWindowLocked(WindowState win, boolean keepVisibleDeadWindow) {
        win.mWindowRemovalAllowed = true;
        if (DEBUG_ADD_REMOVE) Slog.v(TAG,
                "removeWindowLocked: " + win + " callers=" + Debug.getCallers(4));
@@ -2317,7 +2316,7 @@ public class WindowManagerService extends IWindowManager.Stub
            // If we are not currently running the exit animation, we need to see about starting one
            wasVisible = win.isWinVisibleLw();

            if (win.shouldKeepVisibleDeadAppWindow()) {
            if (keepVisibleDeadWindow) {
                if (DEBUG_ADD_REMOVE) Slog.v(TAG_WM,
                        "Not removing " + win + " because app died while it's visible");

@@ -4408,12 +4407,11 @@ public class WindowManagerService extends IWindowManager.Stub
            wtoken.waitingToShow = false;
            wtoken.hiddenRequested = !visible;

            if (!visible && wtoken.appDied) {
                // This app is dead while it was visible, we kept its dead window on screen.
            if (!visible) {
                // If the app is dead while it was visible, we kept its dead window on screen.
                // Now that the app is going invisible, we can remove it. It will be restarted
                // if made visible again.
                wtoken.appDied = false;
                wtoken.removeAllWindows();
                wtoken.removeAllDeadWindows();
            } else if (visible) {
                if (!mAppTransition.isTransitionSet() && mAppTransition.isReady()) {
                    // Add the app mOpeningApps if transition is unset but ready. This means
+3 −7
Original line number Diff line number Diff line
@@ -1740,10 +1740,7 @@ final class WindowState implements WindowManagerPolicy.WindowState {
                    WindowState win = mService.windowForClientLocked(mSession, mClient, false);
                    Slog.i(TAG, "WIN DEATH: " + win);
                    if (win != null) {
                        if (win.mAppToken != null && !win.mAppToken.clientHidden) {
                            win.mAppToken.appDied = true;
                        }
                        mService.removeWindowLocked(win);
                        mService.removeWindowLocked(win, shouldKeepVisibleDeadAppWindow());
                        if (win.mAttrs.type == TYPE_DOCK_DIVIDER) {
                            // The owner of the docked divider died :( We reset the docked stack,
                            // just in case they have the divider at an unstable position. Better
@@ -1761,8 +1758,7 @@ final class WindowState implements WindowManagerPolicy.WindowState {
                    }
                }
            } catch (IllegalArgumentException ex) {
                // This will happen if the window has already been
                // removed.
                // This will happen if the window has already been removed.
            }
        }
    }
@@ -1773,7 +1769,7 @@ final class WindowState implements WindowManagerPolicy.WindowState {
     * interacts with it.
     */
    boolean shouldKeepVisibleDeadAppWindow() {
        if (!isWinVisibleLw() || mAppToken == null || !mAppToken.appDied) {
        if (!isWinVisibleLw() || mAppToken == null || mAppToken.clientHidden) {
            // Not a visible app window or the app isn't dead.
            return false;
        }