Jorim Jaggi | 879ff72 | 2016-11-04 18:08:17 -0700 | [diff] [blame^] | 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.PRIVATE_FLAG_KEYGUARD; |
| 20 | import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER; |
| 21 | import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE; |
| 22 | import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS; |
| 23 | import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT; |
| 24 | import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_MOVEMENT; |
| 25 | import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| 26 | import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| 27 | |
| 28 | import android.os.Bundle; |
| 29 | import android.os.IBinder; |
| 30 | import android.os.RemoteException; |
| 31 | import android.util.Slog; |
| 32 | import android.view.DisplayInfo; |
| 33 | import android.view.animation.Animation; |
| 34 | |
| 35 | /** |
| 36 | * A token that represents a set of wallpaper windows. |
| 37 | */ |
| 38 | class WallpaperWindowToken extends WindowToken { |
| 39 | |
| 40 | private static final String TAG = TAG_WITH_CLASS_NAME ? "WallpaperWindowToken" : TAG_WM; |
| 41 | |
| 42 | WallpaperWindowToken(WindowManagerService service, IBinder token, boolean explicit, |
| 43 | DisplayContent dc) { |
| 44 | super(service, token, TYPE_WALLPAPER, explicit, dc); |
| 45 | dc.mWallpaperController.addWallpaperToken(this); |
| 46 | } |
| 47 | |
| 48 | @Override |
| 49 | void setExiting() { |
| 50 | super.setExiting(); |
| 51 | mDisplayContent.mWallpaperController.removeWallpaperToken(this); |
| 52 | } |
| 53 | |
| 54 | void hideWallpaperToken(boolean wasDeferred, String reason) { |
| 55 | for (int j = mChildren.size() - 1; j >= 0; j--) { |
| 56 | final WindowState wallpaper = mChildren.get(j); |
| 57 | wallpaper.hideWallpaperWindow(wasDeferred, reason); |
| 58 | } |
| 59 | hidden = true; |
| 60 | } |
| 61 | |
| 62 | void sendWindowWallpaperCommand( |
| 63 | String action, int x, int y, int z, Bundle extras, boolean sync) { |
| 64 | for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { |
| 65 | final WindowState wallpaper = mChildren.get(wallpaperNdx); |
| 66 | try { |
| 67 | wallpaper.mClient.dispatchWallpaperCommand(action, x, y, z, extras, sync); |
| 68 | // We only want to be synchronous with one wallpaper. |
| 69 | sync = false; |
| 70 | } catch (RemoteException e) { |
| 71 | } |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | void updateWallpaperOffset(int dw, int dh, boolean sync) { |
| 76 | final WallpaperController wallpaperController = mDisplayContent.mWallpaperController; |
| 77 | for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { |
| 78 | final WindowState wallpaper = mChildren.get(wallpaperNdx); |
| 79 | if (wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, sync)) { |
| 80 | final WindowStateAnimator winAnimator = wallpaper.mWinAnimator; |
| 81 | winAnimator.computeShownFrameLocked(); |
| 82 | // No need to lay out the windows - we can just set the wallpaper position directly. |
| 83 | winAnimator.setWallpaperOffset(wallpaper.mShownPosition); |
| 84 | // We only want to be synchronous with one wallpaper. |
| 85 | sync = false; |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | void updateWallpaperVisibility(boolean visible) { |
| 91 | final DisplayInfo displayInfo = mDisplayContent.getDisplayInfo(); |
| 92 | final int dw = displayInfo.logicalWidth; |
| 93 | final int dh = displayInfo.logicalHeight; |
| 94 | |
| 95 | if (hidden == visible) { |
| 96 | hidden = !visible; |
| 97 | // Need to do a layout to ensure the wallpaper now has the correct size. |
| 98 | mDisplayContent.setLayoutNeeded(); |
| 99 | } |
| 100 | |
| 101 | final WallpaperController wallpaperController = mDisplayContent.mWallpaperController; |
| 102 | for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { |
| 103 | final WindowState wallpaper = mChildren.get(wallpaperNdx); |
| 104 | if (visible) { |
| 105 | wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, false); |
| 106 | } |
| 107 | |
| 108 | wallpaper.dispatchWallpaperVisibility(visible); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Starts {@param anim} on all children. |
| 114 | */ |
| 115 | void startAnimation(Animation anim) { |
| 116 | for (int ndx = mChildren.size() - 1; ndx >= 0; ndx--) { |
| 117 | final WindowState windowState = mChildren.get(ndx); |
| 118 | windowState.mWinAnimator.setAnimation(anim); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | boolean updateWallpaperWindowsPlacement(ReadOnlyWindowList windowList, |
| 123 | WindowState wallpaperTarget, int wallpaperTargetIndex, boolean visible, int dw, int dh, |
| 124 | int wallpaperAnimLayerAdj) { |
| 125 | |
| 126 | boolean changed = false; |
| 127 | if (hidden == visible) { |
| 128 | if (DEBUG_WALLPAPER_LIGHT) Slog.d(TAG, |
| 129 | "Wallpaper token " + token + " hidden=" + !visible); |
| 130 | hidden = !visible; |
| 131 | // Need to do a layout to ensure the wallpaper now has the correct size. |
| 132 | mDisplayContent.setLayoutNeeded(); |
| 133 | } |
| 134 | |
| 135 | final WallpaperController wallpaperController = mDisplayContent.mWallpaperController; |
| 136 | for (int wallpaperNdx = mChildren.size() - 1; wallpaperNdx >= 0; wallpaperNdx--) { |
| 137 | final WindowState wallpaper = mChildren.get(wallpaperNdx); |
| 138 | |
| 139 | if (visible) { |
| 140 | wallpaperController.updateWallpaperOffset(wallpaper, dw, dh, false); |
| 141 | } |
| 142 | |
| 143 | // First, make sure the client has the current visibility state. |
| 144 | wallpaper.dispatchWallpaperVisibility(visible); |
| 145 | wallpaper.adjustAnimLayer(wallpaperAnimLayerAdj); |
| 146 | |
| 147 | if (DEBUG_LAYERS || DEBUG_WALLPAPER_LIGHT) Slog.v(TAG, "adjustWallpaper win " |
| 148 | + wallpaper + " anim layer: " + wallpaper.mWinAnimator.mAnimLayer); |
| 149 | |
| 150 | // First, if this window is at the current index, then all is well. |
| 151 | if (wallpaper == wallpaperTarget) { |
| 152 | wallpaperTargetIndex--; |
| 153 | wallpaperTarget = wallpaperTargetIndex > 0 |
| 154 | ? windowList.get(wallpaperTargetIndex - 1) : null; |
| 155 | continue; |
| 156 | } |
| 157 | |
| 158 | // The window didn't match... the current wallpaper window, |
| 159 | // wherever it is, is in the wrong place, so make sure it is not in the list. |
| 160 | int oldIndex = windowList.indexOf(wallpaper); |
| 161 | if (oldIndex >= 0) { |
| 162 | if (DEBUG_WINDOW_MOVEMENT) Slog.v(TAG, |
| 163 | "Wallpaper removing at " + oldIndex + ": " + wallpaper); |
| 164 | mDisplayContent.removeFromWindowList(wallpaper); |
| 165 | if (oldIndex < wallpaperTargetIndex) { |
| 166 | wallpaperTargetIndex--; |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | // Now stick it in. For apps over wallpaper keep the wallpaper at the bottommost |
| 171 | // layer. For keyguard over wallpaper put the wallpaper under the lowest window that |
| 172 | // is currently on screen, i.e. not hidden by policy. |
| 173 | int insertionIndex = 0; |
| 174 | if (visible && wallpaperTarget != null) { |
| 175 | final int privateFlags = wallpaperTarget.mAttrs.privateFlags; |
| 176 | if ((privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) { |
| 177 | insertionIndex = Math.min(windowList.indexOf(wallpaperTarget), |
| 178 | findLowestWindowOnScreen(windowList)); |
| 179 | } |
| 180 | } |
| 181 | if (DEBUG_WALLPAPER_LIGHT || DEBUG_WINDOW_MOVEMENT |
| 182 | || (DEBUG_ADD_REMOVE && oldIndex != insertionIndex)) Slog.v(TAG, |
| 183 | "Moving wallpaper " + wallpaper + " from " + oldIndex + " to " + insertionIndex); |
| 184 | |
| 185 | mDisplayContent.addToWindowList(wallpaper, insertionIndex); |
| 186 | changed = true; |
| 187 | } |
| 188 | |
| 189 | return changed; |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * @return The index in {@param windows} of the lowest window that is currently on screen and |
| 194 | * not hidden by the policy. |
| 195 | */ |
| 196 | private int findLowestWindowOnScreen(ReadOnlyWindowList windowList) { |
| 197 | final int size = windowList.size(); |
| 198 | for (int index = 0; index < size; index++) { |
| 199 | final WindowState win = windowList.get(index); |
| 200 | if (win.isOnScreen()) { |
| 201 | return index; |
| 202 | } |
| 203 | } |
| 204 | return Integer.MAX_VALUE; |
| 205 | } |
| 206 | |
| 207 | boolean hasVisibleNotDrawnWallpaper() { |
| 208 | for (int j = mChildren.size() - 1; j >= 0; --j) { |
| 209 | final WindowState wallpaper = mChildren.get(j); |
| 210 | if (wallpaper.hasVisibleNotDrawnWallpaper()) { |
| 211 | return true; |
| 212 | } |
| 213 | } |
| 214 | return false; |
| 215 | } |
| 216 | |
| 217 | @Override |
| 218 | public String toString() { |
| 219 | if (stringName == null) { |
| 220 | StringBuilder sb = new StringBuilder(); |
| 221 | sb.append("WallpaperWindowToken{"); |
| 222 | sb.append(Integer.toHexString(System.identityHashCode(this))); |
| 223 | sb.append(" token="); sb.append(token); sb.append('}'); |
| 224 | stringName = sb.toString(); |
| 225 | } |
| 226 | return stringName; |
| 227 | } |
| 228 | } |