| /* |
| * Copyright (C) 2013 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.WindowManagerService.DEBUG_TASK_MOVEMENT; |
| import static com.android.server.wm.WindowManagerService.TAG; |
| |
| import android.content.res.Configuration; |
| import android.graphics.Rect; |
| import android.os.Debug; |
| import android.util.EventLog; |
| import android.util.IntArray; |
| import android.util.Slog; |
| import android.view.DisplayInfo; |
| |
| import com.android.server.EventLogTags; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class TaskStack implements DimLayer.DimLayerUser { |
| /** Unique identifier */ |
| final int mStackId; |
| |
| /** The service */ |
| private final WindowManagerService mService; |
| |
| /** The display this stack sits under. */ |
| private DisplayContent mDisplayContent; |
| |
| /** The Tasks that define this stack. Oldest Tasks are at the bottom. The ordering must match |
| * mTaskHistory in the ActivityStack with the same mStackId */ |
| private final ArrayList<Task> mTasks = new ArrayList<>(); |
| |
| /** For comparison with DisplayContent bounds. */ |
| private Rect mTmpRect = new Rect(); |
| |
| /** Content limits relative to the DisplayContent this sits in. */ |
| private Rect mBounds = new Rect(); |
| |
| /** Whether mBounds is fullscreen */ |
| private boolean mFullscreen = true; |
| |
| /** Support for non-zero {@link android.view.animation.Animation#getBackgroundColor()} */ |
| DimLayer mAnimationBackgroundSurface; |
| |
| /** The particular window with an Animation with non-zero background color. */ |
| WindowStateAnimator mAnimationBackgroundAnimator; |
| |
| /** Application tokens that are exiting, but still on screen for animations. */ |
| final AppTokenList mExitingAppTokens = new AppTokenList(); |
| |
| /** Detach this stack from its display when animation completes. */ |
| boolean mDeferDetach; |
| |
| TaskStack(WindowManagerService service, int stackId) { |
| mService = service; |
| mStackId = stackId; |
| EventLog.writeEvent(EventLogTags.WM_STACK_CREATED, stackId); |
| } |
| |
| DisplayContent getDisplayContent() { |
| return mDisplayContent; |
| } |
| |
| ArrayList<Task> getTasks() { |
| return mTasks; |
| } |
| |
| void resizeWindows() { |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| mTasks.get(taskNdx).resizeWindows(); |
| } |
| } |
| |
| /** |
| * Set the bounds of the stack and its containing tasks. |
| * @param bounds New stack bounds. Passing in null sets the bounds to fullscreen. |
| * @param changedTaskIds Output list of Ids of tasks that changed in bounds. |
| * @param newTaskConfigs Output list of new Configuation of the tasks that changed. |
| * @return True if the stack bounds was changed. |
| * */ |
| boolean setBounds(Rect bounds, IntArray changedTaskIds, List<Configuration> newTaskConfigs) { |
| if (!setBounds(bounds)) { |
| return false; |
| } |
| |
| // Update bounds of containing tasks. |
| final Rect newBounds = mFullscreen ? null : mBounds; |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| final Task task = mTasks.get(taskNdx); |
| if (task.setBounds(newBounds)) { |
| changedTaskIds.add(task.mTaskId); |
| newTaskConfigs.add(task.mOverrideConfig); |
| } |
| } |
| return true; |
| } |
| |
| private boolean setBounds(Rect bounds) { |
| boolean oldFullscreen = mFullscreen; |
| if (mDisplayContent != null) { |
| mDisplayContent.getLogicalDisplayRect(mTmpRect); |
| if (bounds == null) { |
| bounds = mTmpRect; |
| mFullscreen = true; |
| } else { |
| // ensure bounds are entirely within the display rect |
| if (!bounds.intersect(mTmpRect)) { |
| // Can't set bounds outside the containing display.. Sorry! |
| return false; |
| } |
| mFullscreen = mTmpRect.equals(bounds); |
| } |
| } |
| |
| if (bounds == null) { |
| // Can't set to fullscreen if we don't have a display to get bounds from... |
| return false; |
| } |
| if (mBounds.equals(bounds) && oldFullscreen == mFullscreen) { |
| return false; |
| } |
| |
| mAnimationBackgroundSurface.setBounds(bounds); |
| mBounds.set(bounds); |
| return true; |
| } |
| |
| void getBounds(Rect out) { |
| out.set(mBounds); |
| } |
| |
| void updateDisplayInfo() { |
| if (mDisplayContent != null) { |
| setBounds(mFullscreen ? null : mBounds); |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| mTasks.get(taskNdx).updateDisplayInfo(mDisplayContent); |
| } |
| } |
| } |
| |
| boolean isAnimating() { |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<AppWindowToken> activities = mTasks.get(taskNdx).mAppTokens; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ArrayList<WindowState> windows = activities.get(activityNdx).allAppWindows; |
| for (int winNdx = windows.size() - 1; winNdx >= 0; --winNdx) { |
| final WindowStateAnimator winAnimator = windows.get(winNdx).mWinAnimator; |
| if (winAnimator.isAnimating() || winAnimator.mWin.mExiting) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| void addTask(Task task, boolean toTop) { |
| addTask(task, toTop, task.showForAllUsers()); |
| } |
| |
| /** |
| * Put a Task in this stack. Used for adding and moving. |
| * @param task The task to add. |
| * @param toTop Whether to add it to the top or bottom. |
| * @param showForAllUsers Whether to show the task regardless of the current user. |
| */ |
| void addTask(Task task, boolean toTop, boolean showForAllUsers) { |
| positionTask(task, toTop ? mTasks.size() : 0, showForAllUsers); |
| } |
| |
| void positionTask(Task task, int position, boolean showForAllUsers) { |
| final boolean canShowTask = |
| showForAllUsers || mService.isCurrentProfileLocked(task.mUserId); |
| mTasks.remove(task); |
| int stackSize = mTasks.size(); |
| int minPosition = 0; |
| int maxPosition = stackSize; |
| |
| if (canShowTask) { |
| minPosition = computeMinPosition(minPosition, stackSize); |
| } else { |
| maxPosition = computeMaxPosition(maxPosition); |
| } |
| // Reset position based on minimum/maximum possible positions. |
| position = Math.min(Math.max(position, minPosition), maxPosition); |
| |
| if (DEBUG_TASK_MOVEMENT) Slog.d(TAG, |
| "positionTask: task=" + task + " position=" + position); |
| mTasks.add(position, task); |
| |
| task.mStack = this; |
| task.updateDisplayInfo(mDisplayContent); |
| boolean toTop = position == mTasks.size() - 1; |
| if (toTop) { |
| mDisplayContent.moveStack(this, true); |
| } |
| EventLog.writeEvent(EventLogTags.WM_TASK_MOVED, task.mTaskId, toTop ? 1 : 0, position); |
| } |
| |
| /** Calculate the minimum possible position for a task that can be shown to the user. |
| * The minimum position will be above all other tasks that can't be shown. |
| * @param minPosition The minimum position the caller is suggesting. |
| * We will start adjusting up from here. |
| * @param size The size of the current task list. |
| */ |
| private int computeMinPosition(int minPosition, int size) { |
| while (minPosition < size) { |
| final Task tmpTask = mTasks.get(minPosition); |
| final boolean canShowTmpTask = |
| tmpTask.showForAllUsers() |
| || mService.isCurrentProfileLocked(tmpTask.mUserId); |
| if (canShowTmpTask) { |
| break; |
| } |
| minPosition++; |
| } |
| return minPosition; |
| } |
| |
| /** Calculate the maximum possible position for a task that can't be shown to the user. |
| * The maximum position will be below all other tasks that can be shown. |
| * @param maxPosition The maximum position the caller is suggesting. |
| * We will start adjusting down from here. |
| */ |
| private int computeMaxPosition(int maxPosition) { |
| while (maxPosition > 0) { |
| final Task tmpTask = mTasks.get(maxPosition - 1); |
| final boolean canShowTmpTask = |
| tmpTask.showForAllUsers() |
| || mService.isCurrentProfileLocked(tmpTask.mUserId); |
| if (!canShowTmpTask) { |
| break; |
| } |
| maxPosition--; |
| } |
| return maxPosition; |
| } |
| |
| void moveTaskToTop(Task task) { |
| if (DEBUG_TASK_MOVEMENT) Slog.d(TAG, "moveTaskToTop: task=" + task + " Callers=" |
| + Debug.getCallers(6)); |
| mTasks.remove(task); |
| addTask(task, true); |
| } |
| |
| void moveTaskToBottom(Task task) { |
| if (DEBUG_TASK_MOVEMENT) Slog.d(TAG, "moveTaskToBottom: task=" + task); |
| mTasks.remove(task); |
| addTask(task, false); |
| } |
| |
| /** |
| * Delete a Task from this stack. If it is the last Task in the stack, move this stack to the |
| * back. |
| * @param task The Task to delete. |
| */ |
| void removeTask(Task task) { |
| if (DEBUG_TASK_MOVEMENT) Slog.d(TAG, "removeTask: task=" + task); |
| mTasks.remove(task); |
| if (mDisplayContent != null) { |
| if (mTasks.isEmpty()) { |
| mDisplayContent.moveStack(this, false); |
| } |
| mDisplayContent.layoutNeeded = true; |
| } |
| for (int appNdx = mExitingAppTokens.size() - 1; appNdx >= 0; --appNdx) { |
| final AppWindowToken wtoken = mExitingAppTokens.get(appNdx); |
| if (wtoken.mTask == task) { |
| wtoken.mIsExiting = false; |
| mExitingAppTokens.remove(appNdx); |
| } |
| } |
| } |
| |
| void attachDisplayContent(DisplayContent displayContent) { |
| if (mDisplayContent != null) { |
| throw new IllegalStateException("attachDisplayContent: Already attached"); |
| } |
| |
| mDisplayContent = displayContent; |
| mAnimationBackgroundSurface = new DimLayer(mService, this, mDisplayContent.getDisplayId()); |
| updateDisplayInfo(); |
| } |
| |
| void detachDisplay() { |
| EventLog.writeEvent(EventLogTags.WM_STACK_REMOVED, mStackId); |
| |
| boolean doAnotherLayoutPass = false; |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| final AppTokenList appWindowTokens = mTasks.get(taskNdx).mAppTokens; |
| for (int appNdx = appWindowTokens.size() - 1; appNdx >= 0; --appNdx) { |
| final WindowList appWindows = appWindowTokens.get(appNdx).allAppWindows; |
| for (int winNdx = appWindows.size() - 1; winNdx >= 0; --winNdx) { |
| mService.removeWindowInnerLocked(appWindows.get(winNdx)); |
| doAnotherLayoutPass = true; |
| } |
| } |
| } |
| if (doAnotherLayoutPass) { |
| mService.requestTraversalLocked(); |
| } |
| |
| close(); |
| |
| mDisplayContent = null; |
| } |
| |
| void resetAnimationBackgroundAnimator() { |
| mAnimationBackgroundAnimator = null; |
| mAnimationBackgroundSurface.hide(); |
| } |
| |
| void setAnimationBackground(WindowStateAnimator winAnimator, int color) { |
| int animLayer = winAnimator.mAnimLayer; |
| if (mAnimationBackgroundAnimator == null |
| || animLayer < mAnimationBackgroundAnimator.mAnimLayer) { |
| mAnimationBackgroundAnimator = winAnimator; |
| animLayer = mService.adjustAnimationBackground(winAnimator); |
| mAnimationBackgroundSurface.show(animLayer - WindowManagerService.LAYER_OFFSET_DIM, |
| ((color >> 24) & 0xff) / 255f, 0); |
| } |
| } |
| |
| void switchUser() { |
| int top = mTasks.size(); |
| for (int taskNdx = 0; taskNdx < top; ++taskNdx) { |
| Task task = mTasks.get(taskNdx); |
| if (mService.isCurrentProfileLocked(task.mUserId) || task.showForAllUsers()) { |
| mTasks.remove(taskNdx); |
| mTasks.add(task); |
| --top; |
| } |
| } |
| } |
| |
| void close() { |
| if (mAnimationBackgroundSurface != null) { |
| mAnimationBackgroundSurface.destroySurface(); |
| mAnimationBackgroundSurface = null; |
| } |
| for (int taskNdx = mTasks.size() - 1; taskNdx >= 0; --taskNdx) { |
| mTasks.get(taskNdx).close(); |
| } |
| } |
| |
| public void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); pw.print("mStackId="); pw.println(mStackId); |
| pw.print(prefix); pw.print("mDeferDetach="); pw.println(mDeferDetach); |
| for (int taskNdx = 0; taskNdx < mTasks.size(); ++taskNdx) { |
| pw.print(prefix); |
| mTasks.get(taskNdx).printTo(prefix + " ", pw); |
| } |
| if (mAnimationBackgroundSurface.isDimming()) { |
| pw.print(prefix); pw.println("mWindowAnimationBackgroundSurface:"); |
| mAnimationBackgroundSurface.printTo(prefix + " ", pw); |
| } |
| if (!mExitingAppTokens.isEmpty()) { |
| pw.println(); |
| pw.println(" Exiting application tokens:"); |
| for (int i = mExitingAppTokens.size() - 1; i >= 0; i--) { |
| WindowToken token = mExitingAppTokens.get(i); |
| pw.print(" Exiting App #"); pw.print(i); |
| pw.print(' '); pw.print(token); |
| pw.println(':'); |
| token.dump(pw, " "); |
| } |
| } |
| } |
| |
| @Override |
| public boolean isFullscreen() { |
| return mFullscreen; |
| } |
| |
| @Override |
| public DisplayInfo getDisplayInfo() { |
| return mDisplayContent.getDisplayInfo(); |
| } |
| |
| @Override |
| public String toString() { |
| return "{stackId=" + mStackId + " tasks=" + mTasks + "}"; |
| } |
| } |