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Don't allow any app to specify rotation unless in home task

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The previous logic was racy/buggy in a sense so that the non-home app
could still force the orientation when the divider was still minimized.
The logic is cleaned up so only the home task can force the orientation
in multi-window.

Change-Id: I9eccf86d9fa442375d6eca400cb6ac0815c9fa10
Fixes: 28675152
This commit is contained in:
Jorim Jaggi
2016-05-12 14:47:27 -07:00
parent 918084e9ae
commit 0f6a6c4bc1
1 changed files with 11 additions and 11 deletions
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22
services/core/java/com/android/server/wm/WindowManagerService.java
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@@ -3540,14 +3540,6 @@ public class WindowManagerService extends IWindowManager.Stub
}
}
if ((isStackVisibleLocked(DOCKED_STACK_ID)
&& !mStackIdToStack.get(DOCKED_STACK_ID).isAdjustedForMinimizedDock())
|| isStackVisibleLocked(FREEFORM_WORKSPACE_STACK_ID)) {
// We don't let app affect the system orientation when in freeform or docked mode since
// they don't occupy the entire display and their request can conflict with other apps.
return SCREEN_ORIENTATION_UNSPECIFIED;
}
// Top system windows are not requesting an orientation. Start searching from apps.
return getAppSpecifiedOrientation();
}
@@ -3556,9 +3548,10 @@ public class WindowManagerService extends IWindowManager.Stub
int lastOrientation = SCREEN_ORIENTATION_UNSPECIFIED;
boolean findingBehind = false;
boolean lastFullscreen = false;
// TODO: Multi window.
DisplayContent displayContent = getDefaultDisplayContentLocked();
final ArrayList<Task> tasks = displayContent.getTasks();
final boolean inMultiWindow = isStackVisibleLocked(DOCKED_STACK_ID)
|| isStackVisibleLocked(FREEFORM_WORKSPACE_STACK_ID);
for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
AppTokenList tokens = tasks.get(taskNdx).mAppTokens;
final int firstToken = tokens.size() - 1;
@@ -3593,6 +3586,11 @@ public class WindowManagerService extends IWindowManager.Stub
continue;
}
// No app except the home app may specify the screen orientation in multi-window.
if (inMultiWindow && !atoken.mTask.isHomeTask()) {
continue;
}
if (tokenNdx == 0) {
// Last token in this task.
lastOrientation = atoken.requestedOrientation;
@@ -3620,8 +3618,10 @@ public class WindowManagerService extends IWindowManager.Stub
if (DEBUG_ORIENTATION) Slog.v(TAG_WM,
"No app is requesting an orientation, return " + mForcedAppOrientation);
// 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 mForcedAppOrientation;
// to prevent freezing/unfreezing the display too early unless we are in multi-window, in
// which we don't let the app customize the orientation unless it was the home task that
// is handled above.
return inMultiWindow ? SCREEN_ORIENTATION_UNSPECIFIED : mForcedAppOrientation;
}
@Override