input.h revision a95e4cb62f3642cb190d032dbf7dc40d9ecc6973
146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Copyright (C) 2010 The Android Open Source Project 346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Licensed under the Apache License, Version 2.0 (the "License"); 546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * you may not use this file except in compliance with the License. 646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * You may obtain a copy of the License at 746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * http://www.apache.org/licenses/LICENSE-2.0 946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 1046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Unless required by applicable law or agreed to in writing, software 1146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * distributed under the License is distributed on an "AS IS" BASIS, 1246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * See the License for the specific language governing permissions and 1446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * limitations under the License. 1546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 1646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 1746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#ifndef _ANDROID_INPUT_H 1846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#define _ANDROID_INPUT_H 1946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 2046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/****************************************************************** 2146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 2246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * IMPORTANT NOTICE: 2346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 2446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * This file is part of Android's set of stable system headers 2546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * exposed by the Android NDK (Native Development Kit). 2646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 2746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Third-party source AND binary code relies on the definitions 2846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * here to be FROZEN ON ALL UPCOMING PLATFORM RELEASES. 2946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 3046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * - DO NOT MODIFY ENUMS (EXCEPT IF YOU ADD NEW 32-BIT VALUES) 3146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * - DO NOT MODIFY CONSTANTS OR FUNCTIONAL MACROS 3246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * - DO NOT CHANGE THE SIGNATURE OF FUNCTIONS IN ANY WAY 3346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * - DO NOT CHANGE THE LAYOUT OR SIZE OF STRUCTURES 3446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 3546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 3646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 3746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Structures and functions to receive and process input events in 3846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * native code. 3946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 4046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * NOTE: These functions MUST be implemented by /system/lib/libui.so 4146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 4246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 4346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#include <sys/types.h> 4446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#include <android/keycodes.h> 4546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 4646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#ifdef __cplusplus 4746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownextern "C" { 4846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#endif 4946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 5046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 5146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input device classes. 5246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 5346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 5446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is a keyboard. */ 5546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_KEYBOARD = 0x00000001, 5646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 5746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is an alpha-numeric keyboard (not just a dial pad). */ 5846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_ALPHAKEY = 0x00000002, 5946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 6046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is a touchscreen (either single-touch or multi-touch). */ 6146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_TOUCHSCREEN = 0x00000004, 6246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 6346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is a trackball. */ 6446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_TRACKBALL = 0x00000008, 6546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 6646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is a multi-touch touchscreen. */ 6746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_TOUCHSCREEN_MT= 0x00000010, 6846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 6946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The input device is a directional pad. */ 7046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_DEVICE_CLASS_DPAD = 0x00000020 7146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 7246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 7346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 7446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Key states (may be returned by queries about the current state of a 7546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * particular key code, scan code or switch). 7646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 7746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * XXX should we call this BUTTON_STATE_XXX? 7846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 7946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 8046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key state is unknown or the requested key itself is not supported. */ 8146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_STATE_UNKNOWN = -1, 8246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 8346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key is up. */ 8446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_STATE_UP = 0, 8546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 8646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key is down. */ 8746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_STATE_DOWN = 1, 8846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 8946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key is down but is a virtual key press that is being emulated by the system. */ 9046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_STATE_VIRTUAL = 2 9146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 9246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 9346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 9446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Meta key / modifer state. 9546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 9646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 9746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* No meta keys are pressed. */ 9846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_NONE = 0, 9946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 10046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether one of the ALT meta keys is pressed. */ 10146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_ALT_ON = 0x02, 10246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 10346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether the left ALT meta key is pressed. */ 10446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_ALT_LEFT_ON = 0x10, 10546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 10646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether the right ALT meta key is pressed. */ 10746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_ALT_RIGHT_ON = 0x20, 10846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 10946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether one of the SHIFT meta keys is pressed. */ 11046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_SHIFT_ON = 0x01, 11146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 11246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether the left SHIFT meta key is pressed. */ 11346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_SHIFT_LEFT_ON = 0x40, 11446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 11546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether the right SHIFT meta key is pressed. */ 11646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_SHIFT_RIGHT_ON = 0x80, 11746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 11846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used to check whether the SYM meta key is pressed. */ 11946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown META_SYM_ON = 0x04 12046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 12146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 12246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 12346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input events. 12446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 12546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input events are opaque structures. Use the provided accessors functions to 12646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * read their properties. 12746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 12846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownstruct input_event_t; 12946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Browntypedef struct input_event_t input_event_t; 13046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 13146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 13246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input event types. 13346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 13446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 13546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Indicates that the input event is a key event. */ 13646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_EVENT_TYPE_KEY = 1, 13746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 13846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Indicates that the input event is a motion event. */ 13946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_EVENT_TYPE_MOTION = 2 14046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 14146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 14246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 14346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Key event actions. 14446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 14546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 14646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key has been pressed down. */ 14746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_ACTION_DOWN = 0, 14846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 14946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The key has been released. */ 15046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_ACTION_UP = 1, 15146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 15246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Multiple duplicate key events have occurred in a row, or a complex string is 15346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * being delivered. The repeat_count property of the key event contains the number 15446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * of times the given key code should be executed. 15546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 15646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_ACTION_MULTIPLE = 2 15746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 15846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 15946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 16046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Key event flags. 16146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 16246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 16346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is set if the device woke because of this key event. */ 16446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_WOKE_HERE = 0x1, 16546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 16646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is set if the key event was generated by a software keyboard. */ 16746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_SOFT_KEYBOARD = 0x2, 16846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 16946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is set if we don't want the key event to cause us to leave touch mode. */ 17046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_KEEP_TOUCH_MODE = 0x4, 17146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 17246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is set if an event was known to come from a trusted part 17346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * of the system. That is, the event is known to come from the user, 17446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and could not have been spoofed by a third party component. */ 17546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_FROM_SYSTEM = 0x8, 17646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 17746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This mask is used for compatibility, to identify enter keys that are 17846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * coming from an IME whose enter key has been auto-labelled "next" or 17946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * "done". This allows TextView to dispatch these as normal enter keys 18046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * for old applications, but still do the appropriate action when 18146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * receiving them. */ 18246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_EDITOR_ACTION = 0x10, 18346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 18446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* When associated with up key events, this indicates that the key press 18546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * has been canceled. Typically this is used with virtual touch screen 18646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * keys, where the user can slide from the virtual key area on to the 18746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * display: in that case, the application will receive a canceled up 18846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * event and should not perform the action normally associated with the 18946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * key. Note that for this to work, the application can not perform an 19046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * action for a key until it receives an up or the long press timeout has 19146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * expired. */ 19246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_CANCELED = 0x20, 19346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 19446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This key event was generated by a virtual (on-screen) hard key area. 19546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Typically this is an area of the touchscreen, outside of the regular 19646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * display, dedicated to "hardware" buttons. */ 19746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_VIRTUAL_HARD_KEY = 0x40, 19846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 19946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* This flag is set for the first key repeat that occurs after the 20046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * long press timeout. */ 20146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_LONG_PRESS = 0x80, 20246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 20346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Set when a key event has KEY_EVENT_FLAG_CANCELED set because a long 20446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * press action was executed while it was down. */ 20546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_CANCELED_LONG_PRESS = 0x100, 20646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 20746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Set for KEY_EVENT_ACTION_UP when this event's key code is still being 20846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * tracked from its initial down. That is, somebody requested that tracking 20946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * started on the key down and a long press has not caused 21046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * the tracking to be canceled. */ 21146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown KEY_EVENT_FLAG_TRACKING = 0x200 21246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 21346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 21446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 21546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Motion event actions. 21646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 21746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 21846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Bit shift for the action bits holding the pointer index as 21946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * defined by MOTION_EVENT_ACTION_POINTER_INDEX_MASK. 22046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 22146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#define MOTION_EVENT_ACTION_POINTER_INDEX_SHIFT 8 22246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 22346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 22446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Bit mask of the parts of the action code that are the action itself. 22546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 22646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_MASK = 0xff, 22746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 22846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Bits in the action code that represent a pointer index, used with 22946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * MOTION_EVENT_ACTION_POINTER_DOWN and MOTION_EVENT_ACTION_POINTER_UP. Shifting 23046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * down by MOTION_EVENT_ACTION_POINTER_INDEX_SHIFT provides the actual pointer 23146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * index where the data for the pointer going up or down can be found. 23246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 23346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_POINTER_INDEX_MASK = 0xff00, 23446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 23546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A pressed gesture has started, the motion contains the initial starting location. 23646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 23746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_DOWN = 0, 23846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 23946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A pressed gesture has finished, the motion contains the final release location 24046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * as well as any intermediate points since the last down or move event. 24146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 24246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_UP = 1, 24346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 24446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A change has happened during a press gesture (between MOTION_EVENT_ACTION_DOWN and 24546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * MOTION_EVENT_ACTION_UP). The motion contains the most recent point, as well as 24646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * any intermediate points since the last down or move event. 24746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 24846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_MOVE = 2, 24946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 25046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* The current gesture has been aborted. 25146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * You will not receive any more points in it. You should treat this as 25246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * an up event, but not perform any action that you normally would. 25346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 25446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_CANCEL = 3, 25546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 25646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A movement has happened outside of the normal bounds of the UI element. 25746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * This does not provide a full gesture, but only the initial location of the movement/touch. 25846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 25946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_OUTSIDE = 4, 26046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 26146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A non-primary pointer has gone down. 26246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * The bits in MOTION_EVENT_ACTION_POINTER_INDEX_MASK indicate which pointer changed. 26346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 26446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_POINTER_DOWN = 5, 26546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 26646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* A non-primary pointer has gone up. 26746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * The bits in MOTION_EVENT_ACTION_POINTER_INDEX_MASK indicate which pointer changed. 26846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 26946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_ACTION_POINTER_UP = 6 27046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 27146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 27246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 27346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Motion event edge touch flags. 27446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 27546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 27646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* No edges intersected */ 27746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_EDGE_FLAG_NONE = 0, 27846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 27946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Flag indicating the motion event intersected the top edge of the screen. */ 28046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_EDGE_FLAG_TOP = 0x01, 28146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 28246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Flag indicating the motion event intersected the bottom edge of the screen. */ 28346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_EDGE_FLAG_BOTTOM = 0x02, 28446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 28546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Flag indicating the motion event intersected the left edge of the screen. */ 28646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_EDGE_FLAG_LEFT = 0x04, 28746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 28846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown /* Flag indicating the motion event intersected the right edge of the screen. */ 28946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown MOTION_EVENT_EDGE_FLAG_RIGHT = 0x08 29046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 29146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 29246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 29346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Specifies the logical nature of an input event. 29446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * For example, the nature distinguishes between motion events that represent touches and 29546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * those that represent trackball moves. 29646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 29746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * XXX This concept is tentative. Another idea would be to associate events with logical 29846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * controllers rather than physical devices. The interpretation of an event would 29946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * be made with respect to the nature of the controller that is considered the logical 30046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * source of an event. The decoupling is beneficial since multiple physical (and virtual) 30146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * devices could be responsible for producing events that would be associated with 30246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * various logical controllers. For example, the hard keyboard, on screen keyboard, 30346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and peripheral keyboard could be mapped onto a single logical "keyboard" controller 30446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * (or treated independently, if desired). 30546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 30646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownenum { 30746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_EVENT_NATURE_KEY = 1, 30846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_EVENT_NATURE_TOUCH = 2, 30946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown INPUT_EVENT_NATURE_TRACKBALL = 3 31046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown}; 31146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 31246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* 31346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input event accessors. 31446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 31546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Note that most functions can only be used on input events that are of a given type. 31646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Calling these functions on input events of other types will yield undefined behavior. 31746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 31846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 31946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/*** Accessors for all input events. ***/ 32046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 32146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the input event type. */ 32246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t input_event_get_type(const input_event_t* event); 32346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 32446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the id for the device that an input event came from. 32546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 32646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Input events can be generated by multiple different input devices. 32746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Use the input device id to obtain information about the input 32846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * device that was responsible for generating a particular event. 32946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * 33046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * An input device id of 0 indicates that the event didn't come from a physical device; 33146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * other numbers are arbitrary and you shouldn't depend on the values. 33246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Use the provided input device query API to obtain information about input devices. 33346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown */ 33446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t input_event_get_device_id(const input_event_t* event); 33546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 33646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the input event nature. */ 33746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t input_event_get_nature(const input_event_t* event); 33846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 33946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/*** Accessors for key events only. ***/ 34046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 34146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the key event action. */ 34246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_action(const input_event_t* key_event); 34346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 34446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the key event flags. */ 34546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_flags(const input_event_t* key_event); 34646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 34746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the key code of the key event. 34846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * This is the physical key that was pressed, not the Unicode character. */ 34946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_key_code(const input_event_t* key_event); 35046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 35146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the hardware key id of this key event. 35246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * These values are not reliable and vary from device to device. */ 35346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_scan_code(const input_event_t* key_event); 35446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 35546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the meta key state. */ 35646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_meta_state(const input_event_t* key_event); 35746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 35846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the repeat count of the event. 35946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * For both key up an key down events, this is the number of times the key has 36046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * repeated with the first down starting at 0 and counting up from there. For 36146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * multiple key events, this is the number of down/up pairs that have occurred. */ 36246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t key_event_get_repeat_count(const input_event_t* key_event); 36346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 36446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the time of the most recent key down event, in the 36546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * java.lang.System.nanoTime() time base. If this is a down event, 36646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * this will be the same as eventTime. 36746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Note that when chording keys, this value is the down time of the most recently 36846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * pressed key, which may not be the same physical key of this event. */ 36946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint64_t key_event_get_down_time(const input_event_t* key_event); 37046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 37146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the time this event occurred, in the 37246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * java.lang.System.nanoTime() time base. */ 37346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint64_t key_event_get_event_time(const input_event_t* key_event); 37446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 37546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/*** Accessors for motion events only. ***/ 37646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 37746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the combined motion event action code and pointer index. */ 37846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t motion_event_get_action(const input_event_t* motion_event); 37946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 38046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the state of any meta / modifier keys that were in effect when the 38146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * event was generated. */ 38246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t motion_event_get_meta_state(const input_event_t* motion_event); 38346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 38446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get a bitfield indicating which edges, if any, were touched by this motion event. 38546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * For touch events, clients can use this to determine if the user's finger was 38646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * touching the edge of the display. */ 38746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t motion_event_get_edge_flags(const input_event_t* motion_event); 38846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 38946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the time when the user originally pressed down to start a stream of 39046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * position events, in the java.lang.System.nanoTime() time base. */ 39146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint64_t motion_event_get_down_time(const input_event_t* motion_event); 39246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 39346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the time when this specific event was generated, 39446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * in the java.lang.System.nanoTime() time base. */ 39546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint64_t motion_event_get_event_time(const input_event_t* motion_event); 39646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 3975c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the X coordinate offset. 3985c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the delta that was added to the raw 3995c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * screen coordinates to adjust for the absolute position of the containing windows 4005c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * and views. */ 4015c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_x_offset(const input_event_t* motion_event); 4025c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown 4035c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the precision of the Y coordinates being reported. 4045c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the delta that was added to the raw 4055c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * screen coordinates to adjust for the absolute position of the containing windows 4065c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * and views. */ 4075c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_y_offset(const input_event_t* motion_event); 4085c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown 40946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the precision of the X coordinates being reported. 41046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * You can multiply this number with an X coordinate sample to find the 41146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * actual hardware value of the X coordinate. */ 41246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_x_precision(const input_event_t* motion_event); 41346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 41446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the precision of the Y coordinates being reported. 41546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * You can multiply this number with a Y coordinate sample to find the 41646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * actual hardware value of the Y coordinate. */ 41746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_y_precision(const input_event_t* motion_event); 41846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 41946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the number of pointers of data contained in this event. 42046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Always >= 1. */ 42146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownsize_t motion_event_get_pointer_count(const input_event_t* motion_event); 42246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 42346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the pointer identifier associated with a particular pointer 42446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * data index is this event. The identifier tells you the actual pointer 42546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * number associated with the data, accounting for individual pointers 42646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * going up and down since the start of the current gesture. */ 42746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint32_t motion_event_get_pointer_id(const input_event_t* motion_event, size_t pointer_index); 42846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 4295c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the original raw X coordinate of this event. 4305c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the original location of the event 43146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * on the screen, before it had been adjusted for the containing window 43246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and views. */ 4335c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_raw_x(const input_event_t* motion_event, size_t pointer_index); 43446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 4355c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the original raw X coordinate of this event. 4365c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the original location of the event 43746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * on the screen, before it had been adjusted for the containing window 43846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and views. */ 4395c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_raw_y(const input_event_t* motion_event, size_t pointer_index); 44046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 44146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the current X coordinate of this event for the given pointer index. 44246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 44346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * that are sub-pixel precise. */ 44446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_x(const input_event_t* motion_event, size_t pointer_index); 44546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 44646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the current Y coordinate of this event for the given pointer index. 44746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 44846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * that are sub-pixel precise. */ 44946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_y(const input_event_t* motion_event, size_t pointer_index); 45046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 45146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the current pressure of this event for the given pointer index. 45246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * The pressure generally ranges from 0 (no pressure at all) to 1 (normal pressure), 45346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * however values higher than 1 may be generated depending on the calibration of 45446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * the input device. */ 45546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_pressure(const input_event_t* motion_event, size_t pointer_index); 45646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 45746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the current scaled value of the approximate size for the given pointer index. 45846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * This represents some approximation of the area of the screen being 45946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * pressed; the actual value in pixels corresponding to the 46046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * touch is normalized with the device specific range of values 46146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and scaled to a value between 0 and 1. The value of size can be used to 46246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * determine fat touch events. */ 46346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_size(const input_event_t* motion_event, size_t pointer_index); 46446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 46546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the number of historical points in this event. These are movements that 46646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * have occurred between this event and the previous event. This only applies 46746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * to MOTION_EVENT_ACTION_MOVE events -- all other actions will have a size of 0. 46846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Historical samples are indexed from oldest to newest. */ 46946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownsize_t motion_event_get_history_size(const input_event_t* motion_event); 47046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 47146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the time that a historical movement occurred between this event and 47246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * the previous event, in the java.lang.System.nanoTime() time base. */ 47346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownint64_t motion_event_get_historical_event_time(input_event_t* motion_event, 47446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown size_t history_index); 47546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 4765c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the historical raw X coordinate of this event for the given pointer index that 4775c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * occurred between this event and the previous motion event. 4785c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the original location of the event 4795c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * on the screen, before it had been adjusted for the containing window 4805c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * and views. 4815c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 4825c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * that are sub-pixel precise. */ 4835c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_historical_raw_x(const input_event_t* motion_event, size_t pointer_index); 4845c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown 4855c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown/* Get the historical raw Y coordinate of this event for the given pointer index that 4865c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * occurred between this event and the previous motion event. 4875c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * For touch events on the screen, this is the original location of the event 4885c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * on the screen, before it had been adjusted for the containing window 4895c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * and views. 4905c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 4915c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown * that are sub-pixel precise. */ 4925c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brownfloat motion_event_get_historical_raw_y(const input_event_t* motion_event, size_t pointer_index); 4935c225b1680e696ae8bbf505a1997d6f720672f74Jeff Brown 49446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the historical X coordinate of this event for the given pointer index that 49546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * occurred between this event and the previous motion event. 49646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 49746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * that are sub-pixel precise. */ 49846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_historical_x(input_event_t* motion_event, size_t pointer_index, 49946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown size_t history_index); 50046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 50146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the historical Y coordinate of this event for the given pointer index that 50246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * occurred between this event and the previous motion event. 50346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * Whole numbers are pixels; the value may have a fraction for input devices 50446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * that are sub-pixel precise. */ 50546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_historical_y(input_event_t* motion_event, size_t pointer_index, 50646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown size_t history_index); 50746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 50846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the historical pressure of this event for the given pointer index that 50946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * occurred between this event and the previous motion event. 51046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * The pressure generally ranges from 0 (no pressure at all) to 1 (normal pressure), 51146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * however values higher than 1 may be generated depending on the calibration of 51246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * the input device. */ 51346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_historical_pressure(input_event_t* motion_event, size_t pointer_index, 51446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown size_t history_index); 51546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 51646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown/* Get the current scaled value of the approximate size for the given pointer index that 51746b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * occurred between this event and the previous motion event. 51846b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * This represents some approximation of the area of the screen being 51946b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * pressed; the actual value in pixels corresponding to the 52046b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * touch is normalized with the device specific range of values 52146b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * and scaled to a value between 0 and 1. The value of size can be used to 52246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown * determine fat touch events. */ 52346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brownfloat motion_event_get_historical_size(input_event_t* motion_event, size_t pointer_index, 52446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown size_t history_index); 52546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 526a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn/* 527a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * Input queue 528a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * 529a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * An input queue is the facility through which you retrieve input 530a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * events. 531a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn */ 532a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackbornstruct input_queue_t; 533a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborntypedef struct input_queue_t input_queue_t; 534a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn 535a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn/* 536a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * Return a file descriptor for the queue, which you 537a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * can use to determine if there are events available. This 538a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * is typically used with select() or poll() to multiplex 539a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * with other kinds of events. 540a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn */ 541a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackbornint input_queue_get_fd(input_queue_t* queue); 542a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn 543a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn/* 544a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * Returns true if there are one or more events available in the 545a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * input queue. Returns 1 if the queue has events; 0 if 546a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * it does not have events; and a negative value if there is an error. 547a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn */ 548a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackbornint input_queue_has_events(input_queue_t* queue); 549a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn 550a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn/* 551a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * Returns the next available event from the queue. Returns a negative 552a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * value if no events are available or an error has occurred. 553a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn */ 554a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackbornint32_t input_queue_get_event(input_queue_t* queue, input_event_t** outEvent); 555a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn 556a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn/* 557a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * Report that dispatching has finished with the given event. 558a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn * This must be called after receiving an event with input_queue_get_event(). 559a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn */ 560a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackbornvoid input_queue_finish_event(input_queue_t* queue, input_event_t* event, int handled); 561a95e4cb62f3642cb190d032dbf7dc40d9ecc6973Dianne Hackborn 56246b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#ifdef __cplusplus 56346b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown} 56446b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#endif 56546b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown 56646b9ac0ae2162309774a7478cd9d4e578747bfc2Jeff Brown#endif // _ANDROID_INPUT_H 567