commit 86d676c81ff91521293c95de8137d5d4f9384d63
author Andrii Kulian <akulian@google.com> Fri Mar 27 19:34:54 2020 -0700
committer Andrii Kulian <akulian@google.com> Tue Mar 31 12:15:57 2020 -0700
tree b6ff7d7a169743e92b7f5f332b5e9e9f6f571a95
parent b51f33f4cde98b8b278e778daa6c4eeeae865614

3/n Refactor TaskContainers to TaskDisplayArea

Renamed TaskContainers to TaskDisplayArea and added getDisplayArea()
method to WindowContainer that finds the first display area in the
hierarchy above the node. ActivityRecord and Task override it to
return the TaskDisplayArea class.

Bug: 152116619
Test: WM CTS and unit tests
Change-Id: I4525afbcd794848e1020213cdca04d89a646dd55

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

diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 7e999c6..60ab556 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -2357,7 +2357,7 @@
                 }
                 // Convert some windowing-mode changes into root-task reparents for split-screen.
                 if (stack.inSplitScreenWindowingMode()) {
-                    stack.getDisplay().mTaskContainers.onSplitScreenModeDismissed();
+                    stack.getDisplayArea().onSplitScreenModeDismissed();
 
                 } else {
                     stack.setWindowingMode(windowingMode);
@@ -2768,14 +2768,14 @@
     }
 
     void moveTaskToSplitScreenPrimaryTask(Task task, boolean toTop) {
-        final DisplayContent display = task.getDisplayContent();
-        final ActivityStack primarySplitTask = display.getRootSplitScreenPrimaryTask();
+        final TaskDisplayArea taskDisplayArea = task.getDisplayArea();
+        final ActivityStack primarySplitTask = taskDisplayArea.getRootSplitScreenPrimaryTask();
         if (primarySplitTask == null) {
             throw new IllegalStateException("Can't enter split without associated organized task");
         }
 
         if (toTop) {
-            display.mTaskContainers.positionStackAt(POSITION_TOP, primarySplitTask,
+            taskDisplayArea.positionStackAt(POSITION_TOP, primarySplitTask,
                     false /* includingParents */);
         }
         WindowContainerTransaction wct = new WindowContainerTransaction();
@@ -3245,8 +3245,8 @@
                 }
 
                 final ActivityStack stack = r.getRootTask();
-                final Task task = stack.getDisplay().mTaskContainers.createStack(
-                        stack.getWindowingMode(), stack.getActivityType(), !ON_TOP, ainfo, intent,
+                final Task task = stack.getDisplayArea().createStack(stack.getWindowingMode(),
+                        stack.getActivityType(), !ON_TOP, ainfo, intent,
                         false /* createdByOrganizer */);
 
                 if (!mRecentTasks.addToBottom(task)) {
@@ -3309,10 +3309,10 @@
                     throw new IllegalArgumentException("resizeTask not allowed on task=" + task);
                 }
                 if (bounds == null && stack.getWindowingMode() == WINDOWING_MODE_FREEFORM) {
-                    stack = stack.getDisplay().mTaskContainers.getOrCreateStack(
+                    stack = stack.getDisplayArea().getOrCreateStack(
                             WINDOWING_MODE_FULLSCREEN, stack.getActivityType(), ON_TOP);
                 } else if (bounds != null && stack.getWindowingMode() != WINDOWING_MODE_FREEFORM) {
-                    stack = stack.getDisplay().mTaskContainers.getOrCreateStack(
+                    stack = stack.getDisplayArea().getOrCreateStack(
                             WINDOWING_MODE_FREEFORM, stack.getActivityType(), ON_TOP);
                 }