services/java/com/android/server/wm/DisplayContent.java - platform/frameworks/base - Gitiles

 /*
  * 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;

 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;

     /**
      * List controlling the ordering of windows in different applications which must
      * be kept in sync with ActivityManager.
      */
     final AppTokenList mAppTokens = new AppTokenList();

     /**
      * AppWindowTokens in the Z order they were in at the start of an animation. Between
      * animations this list is maintained in the exact order of mAppTokens. If tokens
      * are added to mAppTokens during an animation an attempt is made to insert them at the same
      * logical location in this list. Note that this list is always in sync with mWindows.
      */
     AppTokenList mAnimatingAppTokens = new AppTokenList();

     /**
      * 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 atoken The token to insert.
      */
     void addAppToken(final int addPos, final AppWindowToken atoken) {
         mAppTokens.add(addPos, atoken);

         if (addPos == 0 || addPos == mAnimatingAppTokens.size()) {
             // It was inserted into the beginning or end of mAppTokens. Honor that.
             mAnimatingAppTokens.add(addPos, atoken);
         } else {
             // Find the item immediately above the mAppTokens insertion point and put the token
             // immediately below that one in mAnimatingAppTokens.
             final AppWindowToken aboveAnchor = mAppTokens.get(addPos + 1);
             mAnimatingAppTokens.add(mAnimatingAppTokens.indexOf(aboveAnchor), atoken);
         }

         TaskList task = mTaskIdToTaskList.get(atoken.groupId);
         if (task == null) {
             mTaskIdToTaskList.put(atoken.groupId, new TaskList(atoken));
         }
     }

     void removeAppToken(final AppWindowToken wtoken) {
         mAppTokens.remove(wtoken);
         mAnimatingAppTokens.remove(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) {
                 mTaskIdToTaskList.delete(taskId);
             }
         }
     }

     void refillAnimatingAppTokens() {
         mAnimatingAppTokens.clear();
         mAnimatingAppTokens.addAll(mAppTokens);
     }

     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);
             mTaskIdToTaskList.put(newTaskId, task);
         } else {
             task.mAppTokens.add(wtoken);
         }

         wtoken.groupId = newTaskId;
     }

     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);
             if (mAppTokens.size() > 0) {
                 pw.println();
                 pw.println("  Application tokens in Z order:");
                 for (int i=mAppTokens.size()-1; i>=0; i--) {
                     pw.print("  App #"); pw.print(i);
                             pw.print(' '); pw.print(mAppTokens.get(i)); pw.println(":");
                     mAppTokens.get(i).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();
     }
 }
	/*
	* 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;

	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;

	/**
	* List controlling the ordering of windows in different applications which must
	* be kept in sync with ActivityManager.
	*/
	final AppTokenList mAppTokens = new AppTokenList();

	/**
	* AppWindowTokens in the Z order they were in at the start of an animation. Between
	* animations this list is maintained in the exact order of mAppTokens. If tokens
	* are added to mAppTokens during an animation an attempt is made to insert them at the same
	* logical location in this list. Note that this list is always in sync with mWindows.
	*/
	AppTokenList mAnimatingAppTokens = new AppTokenList();

	/**
	* 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 atoken The token to insert.
	*/
	void addAppToken(final int addPos, final AppWindowToken atoken) {
	mAppTokens.add(addPos, atoken);

	if (addPos == 0 \|\| addPos == mAnimatingAppTokens.size()) {
	// It was inserted into the beginning or end of mAppTokens. Honor that.
	mAnimatingAppTokens.add(addPos, atoken);
	} else {
	// Find the item immediately above the mAppTokens insertion point and put the token
	// immediately below that one in mAnimatingAppTokens.
	final AppWindowToken aboveAnchor = mAppTokens.get(addPos + 1);
	mAnimatingAppTokens.add(mAnimatingAppTokens.indexOf(aboveAnchor), atoken);
	}

	TaskList task = mTaskIdToTaskList.get(atoken.groupId);
	if (task == null) {
	mTaskIdToTaskList.put(atoken.groupId, new TaskList(atoken));
	}
	}

	void removeAppToken(final AppWindowToken wtoken) {
	mAppTokens.remove(wtoken);
	mAnimatingAppTokens.remove(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) {
	mTaskIdToTaskList.delete(taskId);
	}
	}
	}

	void refillAnimatingAppTokens() {
	mAnimatingAppTokens.clear();
	mAnimatingAppTokens.addAll(mAppTokens);
	}

	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);
	mTaskIdToTaskList.put(newTaskId, task);
	} else {
	task.mAppTokens.add(wtoken);
	}

	wtoken.groupId = newTaskId;
	}

	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);
	if (mAppTokens.size() > 0) {
	pw.println();
	pw.println(" Application tokens in Z order:");
	for (int i=mAppTokens.size()-1; i>=0; i--) {
	pw.print(" App #"); pw.print(i);
	pw.print(' '); pw.print(mAppTokens.get(i)); pw.println(":");
	mAppTokens.get(i).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();
	}
	}