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Commit bcfbc01d authored by Wei Sheng Shih's avatar Wei Sheng Shih Committed by Automerger Merge Worker
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Merge "Allow WindowState to assign layer during transition." into udc-dev am: 28017afd 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23127077



Change-Id: I40c498de59fe4372963711c4417dff6878c02a0e
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents f6ba6f8c 28017afd

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

+8 −2
Original line number Diff line number Diff line
@@ -516,8 +516,14 @@ class TransitionController { 
     * playing, but can be "opened-up" for certain transition operations like calculating layers

     * for finishTransaction.

     */

    boolean canAssignLayers() {

        return mBuildingFinishLayers || !isPlaying();

    boolean canAssignLayers(@NonNull WindowContainer wc) {

        // Don't build window state into finish transaction in case another window is added or

        // removed during transition playing.

        if (mBuildingFinishLayers) {

            return wc.asWindowState() == null;

        }

        // Always allow WindowState to assign layers since it won't affect transition.

        return wc.asWindowState() != null || !isPlaying();

    }



    @WindowConfiguration.WindowingMode

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

+1 −1
Original line number Diff line number Diff line
@@ -2596,7 +2596,7 @@ class WindowContainer<E extends WindowContainer> extends ConfigurationContainer< 
    void assignLayer(Transaction t, int layer) {

        // Don't assign layers while a transition animation is playing

        // TODO(b/173528115): establish robust best-practices around z-order fighting.

        if (!mTransitionController.canAssignLayers()) return;

        if (!mTransitionController.canAssignLayers(this)) return;

        final boolean changed = layer != mLastLayer || mLastRelativeToLayer != null;

        if (mSurfaceControl != null && changed) {

            setLayer(t, layer);