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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.server.wm;
     18 
     19 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
     20 
     21 import com.android.server.input.InputApplicationHandle;
     22 import com.android.server.wm.WindowManagerService.H;
     23 
     24 import android.content.pm.ActivityInfo;
     25 import android.os.Message;
     26 import android.os.RemoteException;
     27 import android.util.Slog;
     28 import android.view.IApplicationToken;
     29 import android.view.View;
     30 import android.view.WindowManager;
     31 
     32 import java.io.PrintWriter;
     33 import java.util.ArrayList;
     34 
     35 class AppTokenList extends ArrayList<AppWindowToken> {
     36 }
     37 
     38 /**
     39  * Version of WindowToken that is specifically for a particular application (or
     40  * really activity) that is displaying windows.
     41  */
     42 class AppWindowToken extends WindowToken {
     43     // Non-null only for application tokens.
     44     final IApplicationToken appToken;
     45 
     46     // All of the windows and child windows that are included in this
     47     // application token.  Note this list is NOT sorted!
     48     final WindowList allAppWindows = new WindowList();
     49     final AppWindowAnimator mAppAnimator;
     50 
     51     final WindowAnimator mAnimator;
     52 
     53     int groupId = -1;
     54     boolean appFullscreen;
     55     int requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
     56     boolean layoutConfigChanges;
     57     boolean showWhenLocked;
     58 
     59     // The input dispatching timeout for this application token in nanoseconds.
     60     long inputDispatchingTimeoutNanos;
     61 
     62     // These are used for determining when all windows associated with
     63     // an activity have been drawn, so they can be made visible together
     64     // at the same time.
     65     // initialize so that it doesn't match mTransactionSequence which is an int.
     66     long lastTransactionSequence = Long.MIN_VALUE;
     67     int numInterestingWindows;
     68     int numDrawnWindows;
     69     boolean inPendingTransaction;
     70     boolean allDrawn;
     71     // Set to true when this app creates a surface while in the middle of an animation. In that
     72     // case do not clear allDrawn until the animation completes.
     73     boolean deferClearAllDrawn;
     74 
     75     // Is this token going to be hidden in a little while?  If so, it
     76     // won't be taken into account for setting the screen orientation.
     77     boolean willBeHidden;
     78 
     79     // Is this window's surface needed?  This is almost like hidden, except
     80     // it will sometimes be true a little earlier: when the token has
     81     // been shown, but is still waiting for its app transition to execute
     82     // before making its windows shown.
     83     boolean hiddenRequested;
     84 
     85     // Have we told the window clients to hide themselves?
     86     boolean clientHidden;
     87 
     88     // Last visibility state we reported to the app token.
     89     boolean reportedVisible;
     90 
     91     // Last drawn state we reported to the app token.
     92     boolean reportedDrawn;
     93 
     94     // Set to true when the token has been removed from the window mgr.
     95     boolean removed;
     96 
     97     // Information about an application starting window if displayed.
     98     StartingData startingData;
     99     WindowState startingWindow;
    100     View startingView;
    101     boolean startingDisplayed;
    102     boolean startingMoved;
    103     boolean firstWindowDrawn;
    104 
    105     // Input application handle used by the input dispatcher.
    106     final InputApplicationHandle mInputApplicationHandle;
    107 
    108     AppWindowToken(WindowManagerService _service, IApplicationToken _token) {
    109         super(_service, _token.asBinder(),
    110                 WindowManager.LayoutParams.TYPE_APPLICATION, true);
    111         appWindowToken = this;
    112         appToken = _token;
    113         mInputApplicationHandle = new InputApplicationHandle(this);
    114         mAnimator = service.mAnimator;
    115         mAppAnimator = new AppWindowAnimator(this);
    116     }
    117 
    118     void sendAppVisibilityToClients() {
    119         final int N = allAppWindows.size();
    120         for (int i=0; i<N; i++) {
    121             WindowState win = allAppWindows.get(i);
    122             if (win == startingWindow && clientHidden) {
    123                 // Don't hide the starting window.
    124                 continue;
    125             }
    126             try {
    127                 if (WindowManagerService.DEBUG_VISIBILITY) Slog.v(WindowManagerService.TAG,
    128                         "Setting visibility of " + win + ": " + (!clientHidden));
    129                 win.mClient.dispatchAppVisibility(!clientHidden);
    130             } catch (RemoteException e) {
    131             }
    132         }
    133     }
    134 
    135     void updateReportedVisibilityLocked() {
    136         if (appToken == null) {
    137             return;
    138         }
    139 
    140         int numInteresting = 0;
    141         int numVisible = 0;
    142         int numDrawn = 0;
    143         boolean nowGone = true;
    144 
    145         if (WindowManagerService.DEBUG_VISIBILITY) Slog.v(WindowManagerService.TAG,
    146                 "Update reported visibility: " + this);
    147         final int N = allAppWindows.size();
    148         for (int i=0; i<N; i++) {
    149             WindowState win = allAppWindows.get(i);
    150             if (win == startingWindow || win.mAppFreezing
    151                     || win.mViewVisibility != View.VISIBLE
    152                     || win.mAttrs.type == TYPE_APPLICATION_STARTING
    153                     || win.mDestroying) {
    154                 continue;
    155             }
    156             if (WindowManagerService.DEBUG_VISIBILITY) {
    157                 Slog.v(WindowManagerService.TAG, "Win " + win + ": isDrawn="
    158                         + win.isDrawnLw()
    159                         + ", isAnimating=" + win.mWinAnimator.isAnimating());
    160                 if (!win.isDrawnLw()) {
    161                     Slog.v(WindowManagerService.TAG, "Not displayed: s=" + win.mWinAnimator.mSurfaceControl
    162                             + " pv=" + win.mPolicyVisibility
    163                             + " mDrawState=" + win.mWinAnimator.mDrawState
    164                             + " ah=" + win.mAttachedHidden
    165                             + " th="
    166                             + (win.mAppToken != null
    167                                     ? win.mAppToken.hiddenRequested : false)
    168                             + " a=" + win.mWinAnimator.mAnimating);
    169                 }
    170             }
    171             numInteresting++;
    172             if (win.isDrawnLw()) {
    173                 numDrawn++;
    174                 if (!win.mWinAnimator.isAnimating()) {
    175                     numVisible++;
    176                 }
    177                 nowGone = false;
    178             } else if (win.mWinAnimator.isAnimating()) {
    179                 nowGone = false;
    180             }
    181         }
    182 
    183         boolean nowDrawn = numInteresting > 0 && numDrawn >= numInteresting;
    184         boolean nowVisible = numInteresting > 0 && numVisible >= numInteresting;
    185         if (!nowGone) {
    186             // If the app is not yet gone, then it can only become visible/drawn.
    187             if (!nowDrawn) {
    188                 nowDrawn = reportedDrawn;
    189             }
    190             if (!nowVisible) {
    191                 nowVisible = reportedVisible;
    192             }
    193         }
    194         if (WindowManagerService.DEBUG_VISIBILITY) Slog.v(WindowManagerService.TAG, "VIS " + this + ": interesting="
    195                 + numInteresting + " visible=" + numVisible);
    196         if (nowDrawn != reportedDrawn) {
    197             if (nowDrawn) {
    198                 Message m = service.mH.obtainMessage(
    199                         H.REPORT_APPLICATION_TOKEN_DRAWN, this);
    200                 service.mH.sendMessage(m);
    201             }
    202             reportedDrawn = nowDrawn;
    203         }
    204         if (nowVisible != reportedVisible) {
    205             if (WindowManagerService.DEBUG_VISIBILITY) Slog.v(
    206                     WindowManagerService.TAG, "Visibility changed in " + this
    207                     + ": vis=" + nowVisible);
    208             reportedVisible = nowVisible;
    209             Message m = service.mH.obtainMessage(
    210                     H.REPORT_APPLICATION_TOKEN_WINDOWS,
    211                     nowVisible ? 1 : 0,
    212                     nowGone ? 1 : 0,
    213                     this);
    214             service.mH.sendMessage(m);
    215         }
    216     }
    217 
    218     WindowState findMainWindow() {
    219         int j = windows.size();
    220         while (j > 0) {
    221             j--;
    222             WindowState win = windows.get(j);
    223             if (win.mAttrs.type == WindowManager.LayoutParams.TYPE_BASE_APPLICATION
    224                     || win.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING) {
    225                 return win;
    226             }
    227         }
    228         return null;
    229     }
    230 
    231     boolean isVisible() {
    232         final int N = allAppWindows.size();
    233         for (int i=0; i<N; i++) {
    234             WindowState win = allAppWindows.get(i);
    235             if (!win.mAppFreezing
    236                     && (win.mViewVisibility == View.VISIBLE ||
    237                         (win.mWinAnimator.isAnimating() &&
    238                                 !service.mAppTransition.isTransitionSet()))
    239                     && !win.mDestroying && win.isDrawnLw()) {
    240                 return true;
    241             }
    242         }
    243         return false;
    244     }
    245 
    246     @Override
    247     void dump(PrintWriter pw, String prefix) {
    248         super.dump(pw, prefix);
    249         if (appToken != null) {
    250             pw.print(prefix); pw.println("app=true");
    251         }
    252         if (allAppWindows.size() > 0) {
    253             pw.print(prefix); pw.print("allAppWindows="); pw.println(allAppWindows);
    254         }
    255         pw.print(prefix); pw.print("groupId="); pw.print(groupId);
    256                 pw.print(" appFullscreen="); pw.print(appFullscreen);
    257                 pw.print(" requestedOrientation="); pw.println(requestedOrientation);
    258         pw.print(prefix); pw.print("hiddenRequested="); pw.print(hiddenRequested);
    259                 pw.print(" clientHidden="); pw.print(clientHidden);
    260                 pw.print(" willBeHidden="); pw.print(willBeHidden);
    261                 pw.print(" reportedDrawn="); pw.print(reportedDrawn);
    262                 pw.print(" reportedVisible="); pw.println(reportedVisible);
    263         if (paused) {
    264             pw.print(prefix); pw.print("paused="); pw.println(paused);
    265         }
    266         if (numInterestingWindows != 0 || numDrawnWindows != 0
    267                 || allDrawn || mAppAnimator.allDrawn) {
    268             pw.print(prefix); pw.print("numInterestingWindows=");
    269                     pw.print(numInterestingWindows);
    270                     pw.print(" numDrawnWindows="); pw.print(numDrawnWindows);
    271                     pw.print(" inPendingTransaction="); pw.print(inPendingTransaction);
    272                     pw.print(" allDrawn="); pw.print(allDrawn);
    273                     pw.print(" (animator="); pw.print(mAppAnimator.allDrawn);
    274                     pw.println(")");
    275         }
    276         if (inPendingTransaction) {
    277             pw.print(prefix); pw.print("inPendingTransaction=");
    278                     pw.println(inPendingTransaction);
    279         }
    280         if (startingData != null || removed || firstWindowDrawn) {
    281             pw.print(prefix); pw.print("startingData="); pw.print(startingData);
    282                     pw.print(" removed="); pw.print(removed);
    283                     pw.print(" firstWindowDrawn="); pw.println(firstWindowDrawn);
    284         }
    285         if (startingWindow != null || startingView != null
    286                 || startingDisplayed || startingMoved) {
    287             pw.print(prefix); pw.print("startingWindow="); pw.print(startingWindow);
    288                     pw.print(" startingView="); pw.print(startingView);
    289                     pw.print(" startingDisplayed="); pw.print(startingDisplayed);
    290                     pw.print(" startingMoved"); pw.println(startingMoved);
    291         }
    292     }
    293 
    294     @Override
    295     public String toString() {
    296         if (stringName == null) {
    297             StringBuilder sb = new StringBuilder();
    298             sb.append("AppWindowToken{");
    299             sb.append(Integer.toHexString(System.identityHashCode(this)));
    300             sb.append(" token="); sb.append(token); sb.append('}');
    301             stringName = sb.toString();
    302         }
    303         return stringName;
    304     }
    305 }
    306