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 #ifndef _UI_INPUT_WINDOW_H 18 #define _UI_INPUT_WINDOW_H 19 20 #include <input/Input.h> 21 #include <input/InputTransport.h> 22 #include <ui/Rect.h> 23 #include <ui/Region.h> 24 #include <utils/RefBase.h> 25 #include <utils/Timers.h> 26 27 #include "InputApplication.h" 28 29 namespace android { 30 class Parcel; 31 32 /* 33 * Describes the properties of a window that can receive input. 34 */ 35 struct InputWindowInfo { 36 InputWindowInfo() = default; 37 InputWindowInfo(const Parcel& from); 38 39 // Window flags from WindowManager.LayoutParams 40 enum { 41 FLAG_ALLOW_LOCK_WHILE_SCREEN_ON = 0x00000001, 42 FLAG_DIM_BEHIND = 0x00000002, 43 FLAG_BLUR_BEHIND = 0x00000004, 44 FLAG_NOT_FOCUSABLE = 0x00000008, 45 FLAG_NOT_TOUCHABLE = 0x00000010, 46 FLAG_NOT_TOUCH_MODAL = 0x00000020, 47 FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040, 48 FLAG_KEEP_SCREEN_ON = 0x00000080, 49 FLAG_LAYOUT_IN_SCREEN = 0x00000100, 50 FLAG_LAYOUT_NO_LIMITS = 0x00000200, 51 FLAG_FULLSCREEN = 0x00000400, 52 FLAG_FORCE_NOT_FULLSCREEN = 0x00000800, 53 FLAG_DITHER = 0x00001000, 54 FLAG_SECURE = 0x00002000, 55 FLAG_SCALED = 0x00004000, 56 FLAG_IGNORE_CHEEK_PRESSES = 0x00008000, 57 FLAG_LAYOUT_INSET_DECOR = 0x00010000, 58 FLAG_ALT_FOCUSABLE_IM = 0x00020000, 59 FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000, 60 FLAG_SHOW_WHEN_LOCKED = 0x00080000, 61 FLAG_SHOW_WALLPAPER = 0x00100000, 62 FLAG_TURN_SCREEN_ON = 0x00200000, 63 FLAG_DISMISS_KEYGUARD = 0x00400000, 64 FLAG_SPLIT_TOUCH = 0x00800000, 65 FLAG_SLIPPERY = 0x20000000, 66 FLAG_NEEDS_MENU_KEY = 0x40000000, 67 }; 68 69 // Window types from WindowManager.LayoutParams 70 enum { 71 FIRST_APPLICATION_WINDOW = 1, 72 TYPE_BASE_APPLICATION = 1, 73 TYPE_APPLICATION = 2, 74 TYPE_APPLICATION_STARTING = 3, 75 LAST_APPLICATION_WINDOW = 99, 76 FIRST_SUB_WINDOW = 1000, 77 TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW, 78 TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW+1, 79 TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW+2, 80 TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW+3, 81 TYPE_APPLICATION_MEDIA_OVERLAY = FIRST_SUB_WINDOW+4, 82 LAST_SUB_WINDOW = 1999, 83 FIRST_SYSTEM_WINDOW = 2000, 84 TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW, 85 TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1, 86 TYPE_PHONE = FIRST_SYSTEM_WINDOW+2, 87 TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW+3, 88 TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW+4, 89 TYPE_TOAST = FIRST_SYSTEM_WINDOW+5, 90 TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+6, 91 TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW+7, 92 TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW+8, 93 TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW+9, 94 TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW+10, 95 TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW+11, 96 TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12, 97 TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW+13, 98 TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW+14, 99 TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15, 100 TYPE_DRAG = FIRST_SYSTEM_WINDOW+16, 101 TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17, 102 TYPE_POINTER = FIRST_SYSTEM_WINDOW+18, 103 TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19, 104 TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20, 105 TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21, 106 TYPE_INPUT_CONSUMER = FIRST_SYSTEM_WINDOW+22, 107 TYPE_NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW+24, 108 TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+27, 109 TYPE_ACCESSIBILITY_OVERLAY = FIRST_SYSTEM_WINDOW+32, 110 TYPE_DOCK_DIVIDER = FIRST_SYSTEM_WINDOW+34, 111 LAST_SYSTEM_WINDOW = 2999, 112 }; 113 114 enum { 115 INPUT_FEATURE_DISABLE_TOUCH_PAD_GESTURES = 0x00000001, 116 INPUT_FEATURE_NO_INPUT_CHANNEL = 0x00000002, 117 INPUT_FEATURE_DISABLE_USER_ACTIVITY = 0x00000004, 118 }; 119 120 /* These values are filled in by the WM and passed through SurfaceFlinger 121 * unless specified otherwise. 122 */ 123 sp<IBinder> token; 124 std::string name; 125 int32_t layoutParamsFlags; 126 int32_t layoutParamsType; 127 nsecs_t dispatchingTimeout; 128 129 /* These values are filled in by SurfaceFlinger. */ 130 int32_t frameLeft; 131 int32_t frameTop; 132 int32_t frameRight; 133 int32_t frameBottom; 134 135 /* 136 * SurfaceFlinger consumes this value to shrink the computed frame. This is 137 * different from shrinking the touchable region in that it DOES shift the coordinate 138 * space where-as the touchable region does not and is more like "cropping". This 139 * is used for window shadows. 140 */ 141 int32_t surfaceInset = 0; 142 143 // A global scaling factor for all windows. Unlike windowScaleX/Y this results 144 // in scaling of the TOUCH_MAJOR/TOUCH_MINOR axis. 145 float globalScaleFactor; 146 147 // Scaling factors applied to individual windows. 148 float windowXScale = 1.0f; 149 float windowYScale = 1.0f; 150 151 /* 152 * This is filled in by the WM relative to the frame and then translated 153 * to absolute coordinates by SurfaceFlinger once the frame is computed. 154 */ 155 Region touchableRegion; 156 bool visible; 157 bool canReceiveKeys; 158 bool hasFocus; 159 bool hasWallpaper; 160 bool paused; 161 int32_t layer; 162 int32_t ownerPid; 163 int32_t ownerUid; 164 int32_t inputFeatures; 165 int32_t displayId; 166 int32_t portalToDisplayId = ADISPLAY_ID_NONE; 167 InputApplicationInfo applicationInfo; 168 bool replaceTouchableRegionWithCrop; 169 wp<IBinder> touchableRegionCropHandle; 170 171 void addTouchableRegion(const Rect& region); 172 173 bool touchableRegionContainsPoint(int32_t x, int32_t y) const; 174 bool frameContainsPoint(int32_t x, int32_t y) const; 175 176 /* Returns true if the window is of a trusted type that is allowed to silently 177 * overlay other windows for the purpose of implementing the secure views feature. 178 * Trusted overlays, such as IME windows, can partly obscure other windows without causing 179 * motion events to be delivered to them with AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED. 180 */ 181 bool isTrustedOverlay() const; 182 183 bool supportsSplitTouch() const; 184 185 bool overlaps(const InputWindowInfo* other) const; 186 187 status_t write(Parcel& output) const; 188 static InputWindowInfo read(const Parcel& from); 189 }; 190 191 192 /* 193 * Handle for a window that can receive input. 194 * 195 * Used by the native input dispatcher to indirectly refer to the window manager objects 196 * that describe a window. 197 */ 198 class InputWindowHandle : public RefBase { 199 public: 200 201 inline const InputWindowInfo* getInfo() const { 202 return &mInfo; 203 } 204 205 sp<IBinder> getToken() const; 206 207 sp<IBinder> getApplicationToken() { 208 return mInfo.applicationInfo.token; 209 } 210 211 inline std::string getName() const { 212 return mInfo.token ? mInfo.name : "<invalid>"; 213 } 214 215 inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const { 216 return mInfo.token ? mInfo.dispatchingTimeout : defaultValue; 217 } 218 219 /** 220 * Requests that the state of this object be updated to reflect 221 * the most current available information about the application. 222 * 223 * This method should only be called from within the input dispatcher's 224 * critical section. 225 * 226 * Returns true on success, or false if the handle is no longer valid. 227 */ 228 virtual bool updateInfo() = 0; 229 230 /** 231 * Updates from another input window handle. 232 */ 233 void updateFrom(const sp<InputWindowHandle> handle); 234 235 /** 236 * Releases the channel used by the associated information when it is 237 * no longer needed. 238 */ 239 void releaseChannel(); 240 241 protected: 242 explicit InputWindowHandle(); 243 virtual ~InputWindowHandle(); 244 245 InputWindowInfo mInfo; 246 }; 247 248 } // namespace android 249 250 #endif // _UI_INPUT_WINDOW_H 251
