Revert "Revert "1/ Create display content window controller to position stacks in the display""
This reverts commit 7ef6d3371842748eebc3361eedc2dd492b39cfad.
Reason for revert: Testing relanding changes with ag/3515280
Change-Id: I44c9dcd3c68f05d57ffb47c63c08a30279bb5b22
diff --git a/services/core/java/com/android/server/wm/DisplayWindowController.java b/services/core/java/com/android/server/wm/DisplayWindowController.java
new file mode 100644
index 0000000..ad4957e
--- /dev/null
+++ b/services/core/java/com/android/server/wm/DisplayWindowController.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.wm;
+
+import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_STACK;
+import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
+
+import android.content.res.Configuration;
+import android.util.Slog;
+
+/**
+ * Controller for the display container. This is created by activity manager to link activity
+ * displays to the display content they use in window manager.
+ */
+public class DisplayWindowController
+ extends WindowContainerController<DisplayContent, WindowContainerListener> {
+
+ private final int mDisplayId;
+
+ public DisplayWindowController(int displayId, WindowContainerListener listener) {
+ super(listener, WindowManagerService.getInstance());
+ mDisplayId = displayId;
+
+ synchronized (mWindowMap) {
+ // TODO: Convert to setContainer() from DisplayContent once everything is hooked up.
+ // Currently we are not setup to register for config changes.
+ mContainer = mRoot.getDisplayContentOrCreate(displayId);
+ if (mContainer == null) {
+ throw new IllegalArgumentException("Trying to add displayId=" + displayId);
+ }
+ }
+ }
+
+ @Override
+ public void removeContainer() {
+ // TODO: Pipe through from ActivityDisplay to remove the display
+ throw new UnsupportedOperationException("To be implemented");
+ }
+
+ @Override
+ public void onOverrideConfigurationChanged(Configuration overrideConfiguration) {
+ // TODO: Pipe through from ActivityDisplay to update the configuration for the display
+ throw new UnsupportedOperationException("To be implemented");
+ }
+
+ /**
+ * Positions the task stack at the given position in the task stack container.
+ */
+ public void positionChildAt(StackWindowController child, int position) {
+ synchronized (mWindowMap) {
+ if (DEBUG_STACK) Slog.i(TAG_WM, "positionTaskStackAt: positioning stack=" + child
+ + " at " + position);
+ if (mContainer == null) {
+ if (DEBUG_STACK) Slog.i(TAG_WM,
+ "positionTaskStackAt: could not find display=" + mContainer);
+ return;
+ }
+ if (child.mContainer == null) {
+ if (DEBUG_STACK) Slog.i(TAG_WM,
+ "positionTaskStackAt: could not find stack=" + this);
+ return;
+ }
+ mContainer.positionStackAt(position, child.mContainer);
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "{DisplayWindowController displayId=" + mDisplayId + "}";
+ }
+}