| /* |
| * Copyright (C) 2012 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 android.util.SparseArray; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| |
| class DisplayContentList extends ArrayList<DisplayContent> { |
| } |
| |
| /** |
| * Utility class for keeping track of the WindowStates and other pertinent contents of a |
| * particular Display. |
| * |
| * IMPORTANT: No method from this class should ever be used without holding |
| * WindowManagerService.mWindowMap. |
| */ |
| class DisplayContent { |
| // private final static String TAG = "DisplayContent"; |
| |
| /** Unique identifier of this stack. */ |
| private final int mDisplayId; |
| |
| /** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element |
| * from mDisplayWindows; */ |
| private WindowList mWindows = new WindowList(); |
| |
| // This protects the following display size properties, so that |
| // getDisplaySize() doesn't need to acquire the global lock. This is |
| // needed because the window manager sometimes needs to use ActivityThread |
| // while it has its global state locked (for example to load animation |
| // resources), but the ActivityThread also needs get the current display |
| // size sometimes when it has its package lock held. |
| // |
| // These will only be modified with both mWindowMap and mDisplaySizeLock |
| // held (in that order) so the window manager doesn't need to acquire this |
| // lock when needing these values in its normal operation. |
| final Object mDisplaySizeLock = new Object(); |
| int mInitialDisplayWidth = 0; |
| int mInitialDisplayHeight = 0; |
| int mInitialDisplayDensity = 0; |
| int mBaseDisplayWidth = 0; |
| int mBaseDisplayHeight = 0; |
| int mBaseDisplayDensity = 0; |
| private final DisplayInfo mDisplayInfo = new DisplayInfo(); |
| private final Display mDisplay; |
| |
| // Accessed directly by all users. |
| boolean layoutNeeded; |
| int pendingLayoutChanges; |
| final boolean isDefaultDisplay; |
| |
| /** |
| * Window tokens that are in the process of exiting, but still |
| * on screen for animations. |
| */ |
| final ArrayList<WindowToken> mExitingTokens = new ArrayList<WindowToken>(); |
| |
| /** |
| * Application tokens that are in the process of exiting, but still |
| * on screen for animations. |
| */ |
| final AppTokenList mExitingAppTokens = new AppTokenList(); |
| |
| /** |
| * Sorted most recent at top, oldest at [0]. |
| */ |
| ArrayList<TaskList> mTaskLists = new ArrayList<TaskList>(); |
| SparseArray<TaskList> mTaskIdToTaskList = new SparseArray<TaskList>(); |
| |
| /** |
| * @param display May not be null. |
| */ |
| DisplayContent(Display display) { |
| mDisplay = display; |
| mDisplayId = display.getDisplayId(); |
| display.getDisplayInfo(mDisplayInfo); |
| isDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; |
| } |
| |
| int getDisplayId() { |
| return mDisplayId; |
| } |
| |
| WindowList getWindowList() { |
| return mWindows; |
| } |
| |
| Display getDisplay() { |
| return mDisplay; |
| } |
| |
| DisplayInfo getDisplayInfo() { |
| return mDisplayInfo; |
| } |
| |
| public void updateDisplayInfo() { |
| mDisplay.getDisplayInfo(mDisplayInfo); |
| } |
| |
| /** |
| * Find the location to insert a new AppWindowToken into the window-ordered app token list. |
| * @param addPos The location the token was inserted into in mAppTokens. |
| * @param wtoken The token to insert. |
| */ |
| void addAppToken(final int addPos, final AppWindowToken wtoken) { |
| TaskList task = mTaskIdToTaskList.get(wtoken.groupId); |
| if (task == null) { |
| task = new TaskList(wtoken, this); |
| mTaskIdToTaskList.put(wtoken.groupId, task); |
| mTaskLists.add(task); |
| } else { |
| task.mAppTokens.add(wtoken); |
| } |
| } |
| |
| void removeAppToken(final AppWindowToken wtoken) { |
| final int taskId = wtoken.groupId; |
| final TaskList task = mTaskIdToTaskList.get(taskId); |
| if (task != null) { |
| AppTokenList appTokens = task.mAppTokens; |
| appTokens.remove(wtoken); |
| if (appTokens.size() == 0) { |
| mTaskLists.remove(task); |
| mTaskIdToTaskList.delete(taskId); |
| } |
| } |
| } |
| |
| void setAppTaskId(AppWindowToken wtoken, int newTaskId) { |
| final int taskId = wtoken.groupId; |
| TaskList task = mTaskIdToTaskList.get(taskId); |
| if (task != null) { |
| AppTokenList appTokens = task.mAppTokens; |
| appTokens.remove(wtoken); |
| if (appTokens.size() == 0) { |
| mTaskIdToTaskList.delete(taskId); |
| } |
| } |
| |
| task = mTaskIdToTaskList.get(newTaskId); |
| if (task == null) { |
| task = new TaskList(wtoken, this); |
| mTaskIdToTaskList.put(newTaskId, task); |
| } else { |
| task.mAppTokens.add(wtoken); |
| } |
| |
| wtoken.groupId = newTaskId; |
| } |
| |
| class TaskListsIterator implements Iterator<TaskList> { |
| private int mCur; |
| private boolean mReverse; |
| |
| TaskListsIterator() { |
| this(false); |
| } |
| |
| TaskListsIterator(boolean reverse) { |
| mReverse = reverse; |
| int numTaskLists = mTaskLists.size(); |
| mCur = reverse ? numTaskLists - 1 : 0; |
| } |
| |
| @Override |
| public boolean hasNext() { |
| if (mReverse) { |
| return mCur >= 0; |
| } |
| return mCur < mTaskLists.size(); |
| } |
| |
| @Override |
| public TaskList next() { |
| if (hasNext()) { |
| TaskList taskList = mTaskLists.get(mCur); |
| mCur += (mReverse ? -1 : 1); |
| return taskList; |
| } |
| throw new NoSuchElementException(); |
| } |
| |
| @Override |
| public void remove() { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| class AppTokenIterator implements Iterator<AppWindowToken> { |
| final TaskListsIterator mIterator; |
| final boolean mReverse; |
| int mCur; |
| TaskList mTaskList; |
| |
| public AppTokenIterator() { |
| this(false); |
| } |
| |
| public AppTokenIterator(boolean reverse) { |
| mReverse = reverse; |
| mIterator = new TaskListsIterator(reverse); |
| getNextTaskList(); |
| } |
| |
| private void getNextTaskList() { |
| if (mIterator.hasNext()) { |
| mTaskList = mIterator.next(); |
| mCur = mReverse ? mTaskList.mAppTokens.size() - 1 : 0; |
| } |
| } |
| |
| @Override |
| public boolean hasNext() { |
| if (mTaskList == null) { |
| return false; |
| } |
| if (mReverse) { |
| return mCur >= 0; |
| } |
| return mCur < mTaskList.mAppTokens.size(); |
| } |
| |
| @Override |
| public AppWindowToken next() { |
| if (hasNext()) { |
| AppWindowToken wtoken = mTaskList.mAppTokens.get(mCur); |
| mCur += mReverse ? -1 : 1; |
| if (!hasNext()) { |
| getNextTaskList(); |
| } |
| return wtoken; |
| } |
| throw new NoSuchElementException(); |
| } |
| |
| @Override |
| public void remove() { |
| throw new IllegalArgumentException(); |
| } |
| |
| int size() { |
| int size = 0; |
| final TaskListsIterator iterator = new TaskListsIterator(); |
| while (iterator.hasNext()) { |
| size += iterator.next().mAppTokens.size(); |
| } |
| return size; |
| } |
| } |
| |
| public void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); pw.print("Display: mDisplayId="); pw.println(mDisplayId); |
| final String subPrefix = " " + prefix; |
| pw.print(subPrefix); pw.print("init="); pw.print(mInitialDisplayWidth); pw.print("x"); |
| pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity); |
| pw.print("dpi"); |
| if (mInitialDisplayWidth != mBaseDisplayWidth |
| || mInitialDisplayHeight != mBaseDisplayHeight |
| || mInitialDisplayDensity != mBaseDisplayDensity) { |
| pw.print(" base="); |
| pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight); |
| pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi"); |
| } |
| pw.print(" cur="); |
| pw.print(mDisplayInfo.logicalWidth); |
| pw.print("x"); pw.print(mDisplayInfo.logicalHeight); |
| pw.print(" app="); |
| pw.print(mDisplayInfo.appWidth); |
| pw.print("x"); pw.print(mDisplayInfo.appHeight); |
| pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth); |
| pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight); |
| pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth); |
| pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight); |
| AppTokenIterator iterator = new AppTokenIterator(true); |
| int ndx = iterator.size() - 1; |
| if (ndx >= 0) { |
| pw.println(); |
| pw.println(" Application tokens in Z order:"); |
| while (iterator.hasNext()) { |
| AppWindowToken wtoken = iterator.next(); |
| pw.print(" App #"); pw.print(ndx--); |
| pw.print(' '); pw.print(wtoken); pw.println(":"); |
| wtoken.dump(pw, " "); |
| } |
| } |
| if (mExitingTokens.size() > 0) { |
| pw.println(); |
| pw.println(" Exiting tokens:"); |
| for (int i=mExitingTokens.size()-1; i>=0; i--) { |
| WindowToken token = mExitingTokens.get(i); |
| pw.print(" Exiting #"); pw.print(i); |
| pw.print(' '); pw.print(token); |
| pw.println(':'); |
| token.dump(pw, " "); |
| } |
| } |
| if (mExitingAppTokens.size() > 0) { |
| 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, " "); |
| } |
| } |
| if (mTaskIdToTaskList.size() > 0) { |
| pw.println(); |
| for (int i = 0; i < mTaskIdToTaskList.size(); ++i) { |
| pw.print(" TaskList #"); pw.print(i); |
| pw.print(" taskId="); pw.println(mTaskIdToTaskList.keyAt(i)); |
| pw.print(" mAppTokens="); |
| pw.println(mTaskIdToTaskList.valueAt(i).mAppTokens); |
| pw.println(); |
| } |
| } |
| pw.print(subPrefix); pw.print("layoutNeeded="); pw.println(layoutNeeded); |
| pw.println(); |
| } |
| } |