commit 588a3e86a9b2a2c62202eaf61afd98bc0bbf0fd7
author lumark <lumark@google.com> Fri Jul 20 18:53:54 2018 +0800
committer lumark <lumark@google.com> Thu Nov 01 21:10:37 2018 +0800
tree f9261d8ac37e0c46a1a8acb1fe2cb8e3f1346221
parent 101f907ddb6b3edc259792a841d8e10c58c0f613

Each displays can have individual app transition.

Include below refectoring items to support per display AppTransition:

WMS / AM refectoring parts:
- Move AppTransition related stuff from WMS into DisplayContent.
- Move WMS.prepareAppTransition into DisplayWindowController.
- Move WMS.executeAppTransition to DisplayWindowController.
- Move ATM.isNextTransitionForward to DisplayWindowController.
- Move WMS.getPendingAppTransition to DisplayWindowController.
- Move WMS.overrideAppTransition like APIs to DisplayWindowController.
- Move ActivityRecord.applyOptionsLocked to AppContainerController.
- Support tracing all display's AppTransition status for
  DisplayContent.pendingLayoutChanges & window hierachy update.
- Modify logics for AppTransition related caller parts.
- Move WindowSurfacePlacer.handleAppTransitionReadyLocked related
  stuffs into added class AppTransitionController.

WM unit test parts:
- Add test case for verifying app transition state per display:
  - AppTransitionTests.testAppTransitionStateForMultiDisplay
  - AppTransitionTests.testCleanAppTransitionWhenTaskStackReparent
- Rename WindowSurfacePlacerTest to AppTransitionControllerTest since
  the test is related handle AppTransition flow.

Bug: 111362605
Test: go/wm-smoke
Test: atest ActivityManagerTransitionSelectionTests
Test: atest ActivityManagerMultiDisplayTests
Test: atest FrameworksServicesTests for DisplayContent / AppTransition
      related tests.
Change-Id: Ic1793aa794eb161bec31fda57847a6ba2ff4f84f

services/core/java/com/android/server/am/RecentsAnimation.java

diff --git a/services/core/java/com/android/server/am/RecentsAnimation.java b/services/core/java/com/android/server/am/RecentsAnimation.java
index c5586bb..41d488ba 100644
--- a/services/core/java/com/android/server/am/RecentsAnimation.java
+++ b/services/core/java/com/android/server/am/RecentsAnimation.java
@@ -41,6 +41,8 @@
 import android.os.Trace;
 import android.util.Slog;
 import android.view.IRecentsAnimationRunner;
+
+import com.android.server.wm.DisplayWindowController;
 import com.android.server.wm.RecentsAnimationController;
 import com.android.server.wm.RecentsAnimationController.RecentsAnimationCallbacks;
 import com.android.server.wm.WindowManagerService;
@@ -85,10 +87,13 @@
                 + " assistDataReceiver=" + assistDataReceiver);
         Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "RecentsAnimation#startRecentsActivity");
 
+        // TODO(multi-display) currently only support recents animation in default display.
+        final DisplayWindowController dwc =
+                mStackSupervisor.getDefaultDisplay().getWindowContainerController();
         if (!mWindowManager.canStartRecentsAnimation()) {
             notifyAnimationCancelBeforeStart(recentsAnimationRunner);
             if (DEBUG) Slog.d(TAG, "Can't start recents animation, nextAppTransition="
-                        + mWindowManager.getPendingAppTransition());
+                        + dwc.getPendingAppTransition());
             return;
         }