Merge "Avoid re-adding to existing split" into sc-v2-dev am: ef81c4557f (05891154) · Commits · e / os / android_frameworks_base

libs/WindowManager/Jetpack/src/androidx/window/extensions/organizer/SplitController.java

+34 −1

Original line number	Diff line number	Diff line
		@@ -149,6 +149,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		* Checks if the activity start should be routed to a particular container. It can create a new
		* container for the activity and a new split container if necessary.
		*/
		// TODO(b/190433398): Break down into smaller functions.
		void onActivityCreated(@NonNull Activity launchedActivity) {
		final ComponentName componentName = launchedActivity.getComponentName();

		@@ -202,6 +203,18 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		return;
		}

		// Check if the split is already set.
		final TaskFragmentContainer activityBelowContainer = getContainerWithActivity(
		activityBelow.getActivityToken());
		if (currentContainer != null && activityBelowContainer != null) {
		final SplitContainer existingSplit = getActiveSplitForContainers(currentContainer,
		activityBelowContainer);
		if (existingSplit != null) {
		// There is already an active split with the activity below.
		return;
		}
		}

		final ExtensionSplitPairRule splitPairRule = getSplitRule(
		activityBelow.getComponentName(), componentName, splitRules);
		if (splitPairRule == null) {
		@@ -339,7 +352,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		}

		/**
		* Returns the top active split container that has the provided container.
		* Returns the top active split container that has the provided container, if available.
		*/
		@Nullable
		private SplitContainer getActiveSplitForContainer(@NonNull TaskFragmentContainer container) {
		@@ -353,6 +366,26 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		return null;
		}

		/**
		* Returns the active split that has the provided containers as primary and secondary or as
		* secondary and primary, if available.
		*/
		@Nullable
		private SplitContainer getActiveSplitForContainers(
		@NonNull TaskFragmentContainer firstContainer,
		@NonNull TaskFragmentContainer secondContainer) {
		for (int i = mSplitContainers.size() - 1; i >= 0; i--) {
		SplitContainer splitContainer = mSplitContainers.get(i);
		final TaskFragmentContainer primary = splitContainer.getPrimaryContainer();
		final TaskFragmentContainer secondary = splitContainer.getSecondaryContainer();
		if ((firstContainer == secondary && secondContainer == primary)
		\|\| (firstContainer == primary && secondContainer == secondary)) {
		return splitContainer;
		}
		}
		return null;
		}

		/**
		* Checks if the container requires a placeholder and launches it if necessary.
		*/