InputWindow.h revision cc4f7db698f88b633a286d8ab1105b28a474cd09
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 <ui/Input.h> 21#include <ui/InputTransport.h> 22#include <utils/RefBase.h> 23#include <utils/Timers.h> 24#include <utils/String8.h> 25 26#include <SkRegion.h> 27 28#include "InputApplication.h" 29 30namespace android { 31 32/* 33 * Describes the properties of a window that can receive input. 34 */ 35struct InputWindowInfo { 36 // Window flags from WindowManager.LayoutParams 37 enum { 38 FLAG_ALLOW_LOCK_WHILE_SCREEN_ON = 0x00000001, 39 FLAG_DIM_BEHIND = 0x00000002, 40 FLAG_BLUR_BEHIND = 0x00000004, 41 FLAG_NOT_FOCUSABLE = 0x00000008, 42 FLAG_NOT_TOUCHABLE = 0x00000010, 43 FLAG_NOT_TOUCH_MODAL = 0x00000020, 44 FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040, 45 FLAG_KEEP_SCREEN_ON = 0x00000080, 46 FLAG_LAYOUT_IN_SCREEN = 0x00000100, 47 FLAG_LAYOUT_NO_LIMITS = 0x00000200, 48 FLAG_FULLSCREEN = 0x00000400, 49 FLAG_FORCE_NOT_FULLSCREEN = 0x00000800, 50 FLAG_DITHER = 0x00001000, 51 FLAG_SECURE = 0x00002000, 52 FLAG_SCALED = 0x00004000, 53 FLAG_IGNORE_CHEEK_PRESSES = 0x00008000, 54 FLAG_LAYOUT_INSET_DECOR = 0x00010000, 55 FLAG_ALT_FOCUSABLE_IM = 0x00020000, 56 FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000, 57 FLAG_SHOW_WHEN_LOCKED = 0x00080000, 58 FLAG_SHOW_WALLPAPER = 0x00100000, 59 FLAG_TURN_SCREEN_ON = 0x00200000, 60 FLAG_DISMISS_KEYGUARD = 0x00400000, 61 FLAG_SPLIT_TOUCH = 0x00800000, 62 FLAG_HARDWARE_ACCELERATED = 0x01000000, 63 FLAG_HARDWARE_ACCELERATED_SYSTEM = 0x02000000, 64 FLAG_SLIPPERY = 0x04000000, 65 FLAG_NEEDS_MENU_KEY = 0x08000000, 66 FLAG_KEEP_SURFACE_WHILE_ANIMATING = 0x10000000, 67 FLAG_COMPATIBLE_WINDOW = 0x20000000, 68 FLAG_SYSTEM_ERROR = 0x40000000, 69 }; 70 71 // Window types from WindowManager.LayoutParams 72 enum { 73 FIRST_APPLICATION_WINDOW = 1, 74 TYPE_BASE_APPLICATION = 1, 75 TYPE_APPLICATION = 2, 76 TYPE_APPLICATION_STARTING = 3, 77 LAST_APPLICATION_WINDOW = 99, 78 FIRST_SUB_WINDOW = 1000, 79 TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW, 80 TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW+1, 81 TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW+2, 82 TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW+3, 83 TYPE_APPLICATION_MEDIA_OVERLAY = FIRST_SUB_WINDOW+4, 84 LAST_SUB_WINDOW = 1999, 85 FIRST_SYSTEM_WINDOW = 2000, 86 TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW, 87 TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1, 88 TYPE_PHONE = FIRST_SYSTEM_WINDOW+2, 89 TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW+3, 90 TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW+4, 91 TYPE_TOAST = FIRST_SYSTEM_WINDOW+5, 92 TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+6, 93 TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW+7, 94 TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW+8, 95 TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW+9, 96 TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW+10, 97 TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW+11, 98 TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12, 99 TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW+13, 100 TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW+14, 101 TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15, 102 TYPE_DRAG = FIRST_SYSTEM_WINDOW+16, 103 TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17, 104 TYPE_POINTER = FIRST_SYSTEM_WINDOW+18, 105 TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19, 106 LAST_SYSTEM_WINDOW = 2999, 107 }; 108 109 enum { 110 INPUT_FEATURE_DISABLE_TOUCH_PAD_GESTURES = 0x00000001, 111 }; 112 113 sp<InputChannel> inputChannel; 114 String8 name; 115 int32_t layoutParamsFlags; 116 int32_t layoutParamsType; 117 nsecs_t dispatchingTimeout; 118 int32_t frameLeft; 119 int32_t frameTop; 120 int32_t frameRight; 121 int32_t frameBottom; 122 float scaleFactor; 123 SkRegion touchableRegion; 124 bool visible; 125 bool canReceiveKeys; 126 bool hasFocus; 127 bool hasWallpaper; 128 bool paused; 129 int32_t layer; 130 int32_t ownerPid; 131 int32_t ownerUid; 132 int32_t inputFeatures; 133 134 bool touchableRegionContainsPoint(int32_t x, int32_t y) const; 135 bool frameContainsPoint(int32_t x, int32_t y) const; 136 137 /* Returns true if the window is of a trusted type that is allowed to silently 138 * overlay other windows for the purpose of implementing the secure views feature. 139 * Trusted overlays, such as IME windows, can partly obscure other windows without causing 140 * motion events to be delivered to them with AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED. 141 */ 142 bool isTrustedOverlay() const; 143 144 bool supportsSplitTouch() const; 145}; 146 147 148/* 149 * Handle for a window that can receive input. 150 * 151 * Used by the native input dispatcher to indirectly refer to the window manager objects 152 * that describe a window. 153 */ 154class InputWindowHandle : public RefBase { 155public: 156 const sp<InputApplicationHandle> inputApplicationHandle; 157 158 inline const InputWindowInfo* getInfo() const { 159 return mInfo; 160 } 161 162 inline sp<InputChannel> getInputChannel() const { 163 return mInfo ? mInfo->inputChannel : NULL; 164 } 165 166 inline String8 getName() const { 167 return mInfo ? mInfo->name : String8("<invalid>"); 168 } 169 170 inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const { 171 return mInfo ? mInfo->dispatchingTimeout : defaultValue; 172 } 173 174 /** 175 * Requests that the state of this object be updated to reflect 176 * the most current available information about the application. 177 * 178 * This method should only be called from within the input dispatcher's 179 * critical section. 180 * 181 * Returns true on success, or false if the handle is no longer valid. 182 */ 183 virtual bool updateInfo() = 0; 184 185 /** 186 * Releases the storage used by the associated information when it is 187 * no longer needed. 188 */ 189 void releaseInfo(); 190 191protected: 192 InputWindowHandle(const sp<InputApplicationHandle>& inputApplicationHandle); 193 virtual ~InputWindowHandle(); 194 195 InputWindowInfo* mInfo; 196}; 197 198} // namespace android 199 200#endif // _UI_INPUT_WINDOW_H 201