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      1 /*
      2  * Copyright (C) 2016 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_WALLPAPER;
     20 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS;
     21 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT;
     22 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
     23 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
     24 
     25 import android.os.Bundle;
     26 import android.os.IBinder;
     27 import android.os.RemoteException;
     28 import android.util.Slog;
     29 import android.view.DisplayInfo;
     30 import android.view.animation.Animation;
     31 
     32 /**
     33  * A token that represents a set of wallpaper windows.
     34  */
     35 class WallpaperWindowToken extends WindowToken {
     36 
     37     private static final String TAG = TAG_WITH_CLASS_NAME ? "WallpaperWindowToken" : TAG_WM;
     38 
     39     WallpaperWindowToken(WindowManagerService service, IBinder token, boolean explicit,
     40             DisplayContent dc, boolean ownerCanManageAppTokens) {
     41         super(service, token, TYPE_WALLPAPER, explicit, dc, ownerCanManageAppTokens);
     42         dc.mWallpaperController.addWallpaperToken(this);
     43     }
     44 
     45     @Override
     46     void setExiting() {
     47         super.setExiting();
     48         mDisplayContent.mWallpaperController.removeWallpaperToken(this);
     49     }
     50 
     51     void hideWallpaperToken(boolean wasDeferred, String reason) {
     52         for (int j = mChildren.size() - 1; j >= 0; j--) {
     53             final WindowState wallpaper = mChildren.get(j);
     54             wallpaper.hideWallpaperWindow(wasDeferred, reason);
     55         }
     56         setHidden(true);
     57     }
     58 
     59     void sendWindowWallpaperCommand(
     60             String action, int x, int y, int z, Bundle extras, boolean sync) {
     61         for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) {
     62             final WindowState wallpaper = mChildren.get(wallpaperNdx);
     63             try {
     64                 wallpaper.mClient.dispatchWallpaperCommand(action, x, y, z, extras, sync);
     65                 // We only want to be synchronous with one wallpaper.
     66                 sync = false;
     67             } catch (RemoteException e) {
     68             }
     69         }
     70     }
     71 
     72     void updateWallpaperOffset(int dw, int dh, boolean sync) {
     73         final WallpaperController wallpaperController = mDisplayContent.mWallpaperController;
     74         for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) {
     75             final WindowState wallpaper = mChildren.get(wallpaperNdx);
     76             if (wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, sync)) {
     77                 // We only want to be synchronous with one wallpaper.
     78                 sync = false;
     79             }
     80         }
     81     }
     82 
     83     void updateWallpaperVisibility(boolean visible) {
     84         final DisplayInfo displayInfo = mDisplayContent.getDisplayInfo();
     85         final int dw = displayInfo.logicalWidth;
     86         final int dh = displayInfo.logicalHeight;
     87 
     88         if (isHidden() == visible) {
     89             setHidden(!visible);
     90 
     91             // Need to do a layout to ensure the wallpaper now has the correct size.
     92             mDisplayContent.setLayoutNeeded();
     93         }
     94 
     95         final WallpaperController wallpaperController = mDisplayContent.mWallpaperController;
     96         for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) {
     97             final WindowState wallpaper = mChildren.get(wallpaperNdx);
     98             if (visible) {
     99                 wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, false);
    100             }
    101 
    102             wallpaper.dispatchWallpaperVisibility(visible);
    103         }
    104     }
    105 
    106     /**
    107      * Starts {@param anim} on all children.
    108      */
    109     void startAnimation(Animation anim) {
    110         for (int ndx = mChildren.size() - 1; ndx >= 0; ndx--) {
    111             final WindowState windowState = mChildren.get(ndx);
    112             windowState.startAnimation(anim);
    113         }
    114     }
    115 
    116     void updateWallpaperWindows(boolean visible) {
    117 
    118         if (isHidden() == visible) {
    119             if (DEBUG_WALLPAPER_LIGHT) Slog.d(TAG,
    120                     "Wallpaper token " + token + " hidden=" + !visible);
    121             setHidden(!visible);
    122             // Need to do a layout to ensure the wallpaper now has the correct size.
    123             mDisplayContent.setLayoutNeeded();
    124         }
    125 
    126         final DisplayInfo displayInfo = mDisplayContent.getDisplayInfo();
    127         final int dw = displayInfo.logicalWidth;
    128         final int dh = displayInfo.logicalHeight;
    129         final WallpaperController wallpaperController = mDisplayContent.mWallpaperController;
    130         for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) {
    131             final WindowState wallpaper = mChildren.get(wallpaperNdx);
    132 
    133             if (visible) {
    134                 wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, false);
    135             }
    136 
    137             // First, make sure the client has the current visibility state.
    138             wallpaper.dispatchWallpaperVisibility(visible);
    139 
    140             if (DEBUG_LAYERS || DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "adjustWallpaper win "
    141                     + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer);
    142         }
    143     }
    144 
    145     boolean hasVisibleNotDrawnWallpaper() {
    146         for (int j = mChildren.size() - 1; j >= 0; --j) {
    147             final WindowState wallpaper = mChildren.get(j);
    148             if (wallpaper.hasVisibleNotDrawnWallpaper()) {
    149                 return true;
    150             }
    151         }
    152         return false;
    153     }
    154 
    155     @Override
    156     public String toString() {
    157         if (stringName == null) {
    158             StringBuilder sb = new StringBuilder();
    159             sb.append("WallpaperWindowToken{");
    160             sb.append(Integer.toHexString(System.identityHashCode(this)));
    161             sb.append(" token="); sb.append(token); sb.append('}');
    162             stringName = sb.toString();
    163         }
    164         return stringName;
    165     }
    166 }
    167