Split interfaces and service for activities from current AM interfaces (1/n)
First step in unifying the window hierarchy that is currently split
within AM and WM packages. We separate the interfaces and service dealing
with activities and their containers (tasks, stack, display) from the
rest of AM interfaces and services. This will allow us to move the new
interfaces and services to WM when the internal states are cleaned-up.
Test: Existing tests pass
Test: go/wm-smoke-auto
Bug: 80414790
Change-Id: Ide9b3f89123b768cdbd3e3878113c7a8021187f3
diff --git a/services/core/java/com/android/server/am/ActivityTaskManagerService.java b/services/core/java/com/android/server/am/ActivityTaskManagerService.java
new file mode 100644
index 0000000..d7caa1a
--- /dev/null
+++ b/services/core/java/com/android/server/am/ActivityTaskManagerService.java
@@ -0,0 +1,309 @@
+/*
+ * 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.am;
+
+import static android.Manifest.permission.MANAGE_ACTIVITY_STACKS;
+import static android.app.ActivityTaskManager.SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT;
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
+import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
+import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
+import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
+import static com.android.server.am.ActivityManagerService.ANIMATE;
+import static com.android.server.am.ActivityStackSupervisor.DEFER_RESUME;
+import static com.android.server.am.TaskRecord.REPARENT_KEEP_STACK_AT_FRONT;
+
+import android.app.ActivityManager;
+import android.app.IActivityTaskManager;
+import android.app.WindowConfiguration;
+import android.content.Context;
+import android.graphics.Rect;
+import android.os.Binder;
+import android.util.Slog;
+
+import com.android.server.SystemService;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * System service for managing activities and their containers (task, stacks, displays,... ).
+ *
+ * {@hide}
+ */
+public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
+ private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityTaskManagerService" : TAG_AM;
+ private static final String TAG_STACK = TAG + POSTFIX_STACK;
+
+ private Context mContext;
+ private ActivityManagerService mAm;
+ /* Global service lock used by the package the owns this service. */
+ Object mGlobalLock;
+ private ActivityStackSupervisor mStackSupervisor;
+
+ ActivityTaskManagerService(Context context) {
+ mContext = context;
+ }
+
+ // TODO: Will be converted to WM lock once transition is complete.
+ void setActivityManagerService(ActivityManagerService am) {
+ mAm = am;
+ mGlobalLock = mAm;
+ mStackSupervisor = mAm.mStackSupervisor;
+ }
+
+ public static final class Lifecycle extends SystemService {
+ private final ActivityTaskManagerService mService;
+
+ public Lifecycle(Context context) {
+ super(context);
+ mService = new ActivityTaskManagerService(context);
+ }
+
+ @Override
+ public void onStart() {
+ publishBinderService(Context.ACTIVITY_TASK_SERVICE, mService);
+ }
+
+ public ActivityTaskManagerService getService() {
+ return mService;
+ }
+ }
+
+ @Override
+ public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) {
+ if (windowingMode == WINDOWING_MODE_SPLIT_SCREEN_PRIMARY) {
+ setTaskWindowingModeSplitScreenPrimary(taskId, SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT,
+ toTop, ANIMATE, null /* initialBounds */, true /* showRecents */);
+ return;
+ }
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "setTaskWindowingMode()");
+ synchronized (mGlobalLock) {
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
+ if (task == null) {
+ Slog.w(TAG, "setTaskWindowingMode: No task for id=" + taskId);
+ return;
+ }
+
+ if (DEBUG_STACK) Slog.d(TAG_STACK, "setTaskWindowingMode: moving task=" + taskId
+ + " to windowingMode=" + windowingMode + " toTop=" + toTop);
+
+ if (!task.isActivityTypeStandardOrUndefined()) {
+ throw new IllegalArgumentException("setTaskWindowingMode: Attempt to move"
+ + " non-standard task " + taskId + " to windowing mode="
+ + windowingMode);
+ }
+
+ final ActivityStack stack = task.getStack();
+ if (toTop) {
+ stack.moveToFront("setTaskWindowingMode", task);
+ }
+ stack.setWindowingMode(windowingMode);
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+ }
+
+ @Override
+ public List<ActivityManager.RunningTaskInfo> getTasks(int maxNum) {
+ return getFilteredTasks(maxNum, ACTIVITY_TYPE_UNDEFINED, WINDOWING_MODE_UNDEFINED);
+ }
+
+ @Override
+ public List<ActivityManager.RunningTaskInfo> getFilteredTasks(int maxNum,
+ @WindowConfiguration.ActivityType int ignoreActivityType,
+ @WindowConfiguration.WindowingMode int ignoreWindowingMode) {
+ final int callingUid = Binder.getCallingUid();
+ ArrayList<ActivityManager.RunningTaskInfo> list = new ArrayList<>();
+
+ synchronized (mGlobalLock) {
+ if (DEBUG_ALL) Slog.v(TAG, "getTasks: max=" + maxNum);
+
+ final boolean allowed = mAm.isGetTasksAllowed("getTasks", Binder.getCallingPid(),
+ callingUid);
+ mStackSupervisor.getRunningTasks(maxNum, list, ignoreActivityType,
+ ignoreWindowingMode, callingUid, allowed);
+ }
+
+ return list;
+ }
+
+ @Override
+ public void moveTaskToStack(int taskId, int stackId, boolean toTop) {
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "moveTaskToStack()");
+ synchronized (mGlobalLock) {
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
+ if (task == null) {
+ Slog.w(TAG, "moveTaskToStack: No task for id=" + taskId);
+ return;
+ }
+
+ if (DEBUG_STACK) Slog.d(TAG_STACK, "moveTaskToStack: moving task=" + taskId
+ + " to stackId=" + stackId + " toTop=" + toTop);
+
+ final ActivityStack stack = mStackSupervisor.getStack(stackId);
+ if (stack == null) {
+ throw new IllegalStateException(
+ "moveTaskToStack: No stack for stackId=" + stackId);
+ }
+ if (!stack.isActivityTypeStandardOrUndefined()) {
+ throw new IllegalArgumentException("moveTaskToStack: Attempt to move task "
+ + taskId + " to stack " + stackId);
+ }
+ if (stack.inSplitScreenPrimaryWindowingMode()) {
+ mAm.mWindowManager.setDockedStackCreateState(
+ SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT, null /* initialBounds */);
+ }
+ task.reparent(stack, toTop, REPARENT_KEEP_STACK_AT_FRONT, ANIMATE, !DEFER_RESUME,
+ "moveTaskToStack");
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+ }
+
+ @Override
+ public void resizeStack(int stackId, Rect destBounds, boolean allowResizeInDockedMode,
+ boolean preserveWindows, boolean animate, int animationDuration) {
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "resizeStack()");
+
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ synchronized (mGlobalLock) {
+ if (animate) {
+ final PinnedActivityStack stack = mStackSupervisor.getStack(stackId);
+ if (stack == null) {
+ Slog.w(TAG, "resizeStack: stackId " + stackId + " not found.");
+ return;
+ }
+ if (stack.getWindowingMode() != WINDOWING_MODE_PINNED) {
+ throw new IllegalArgumentException("Stack: " + stackId
+ + " doesn't support animated resize.");
+ }
+ stack.animateResizePinnedStack(null /* sourceHintBounds */, destBounds,
+ animationDuration, false /* fromFullscreen */);
+ } else {
+ final ActivityStack stack = mStackSupervisor.getStack(stackId);
+ if (stack == null) {
+ Slog.w(TAG, "resizeStack: stackId " + stackId + " not found.");
+ return;
+ }
+ mStackSupervisor.resizeStackLocked(stack, destBounds,
+ null /* tempTaskBounds */, null /* tempTaskInsetBounds */,
+ preserveWindows, allowResizeInDockedMode, !DEFER_RESUME);
+ }
+ }
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+
+ /**
+ * Moves the specified task to the primary-split-screen stack.
+ *
+ * @param taskId Id of task to move.
+ * @param createMode The mode the primary split screen stack should be created in if it doesn't
+ * exist already. See
+ * {@link android.app.ActivityTaskManager#SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT}
+ * and
+ * {@link android.app.ActivityTaskManager#SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT}
+ * @param toTop If the task and stack should be moved to the top.
+ * @param animate Whether we should play an animation for the moving the task.
+ * @param initialBounds If the primary stack gets created, it will use these bounds for the
+ * stack. Pass {@code null} to use default bounds.
+ * @param showRecents If the recents activity should be shown on the other side of the task
+ * going into split-screen mode.
+ */
+ @Override
+ public boolean setTaskWindowingModeSplitScreenPrimary(int taskId, int createMode,
+ boolean toTop, boolean animate, Rect initialBounds, boolean showRecents) {
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
+ "setTaskWindowingModeSplitScreenPrimary()");
+ synchronized (mGlobalLock) {
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
+ if (task == null) {
+ Slog.w(TAG, "setTaskWindowingModeSplitScreenPrimary: No task for id=" + taskId);
+ return false;
+ }
+ if (DEBUG_STACK) Slog.d(TAG_STACK,
+ "setTaskWindowingModeSplitScreenPrimary: moving task=" + taskId
+ + " to createMode=" + createMode + " toTop=" + toTop);
+ if (!task.isActivityTypeStandardOrUndefined()) {
+ throw new IllegalArgumentException("setTaskWindowingMode: Attempt to move"
+ + " non-standard task " + taskId + " to split-screen windowing mode");
+ }
+
+ mAm.mWindowManager.setDockedStackCreateState(createMode, initialBounds);
+ final int windowingMode = task.getWindowingMode();
+ final ActivityStack stack = task.getStack();
+ if (toTop) {
+ stack.moveToFront("setTaskWindowingModeSplitScreenPrimary", task);
+ }
+ stack.setWindowingMode(WINDOWING_MODE_SPLIT_SCREEN_PRIMARY, animate, showRecents,
+ false /* enteringSplitScreenMode */, false /* deferEnsuringVisibility */);
+ return windowingMode != task.getWindowingMode();
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+ }
+
+ /**
+ * Removes stacks in the input windowing modes from the system if they are of activity type
+ * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED
+ */
+ @Override
+ public void removeStacksInWindowingModes(int[] windowingModes) {
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
+ "removeStacksInWindowingModes()");
+
+ synchronized (mGlobalLock) {
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ mStackSupervisor.removeStacksInWindowingModes(windowingModes);
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+ }
+
+ @Override
+ public void removeStacksWithActivityTypes(int[] activityTypes) {
+ mAm.enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
+ "removeStacksWithActivityTypes()");
+
+ synchronized (mGlobalLock) {
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ mStackSupervisor.removeStacksWithActivityTypes(activityTypes);
+ } finally {
+ Binder.restoreCallingIdentity(ident);
+ }
+ }
+ }
+}