121 lines
3.3 KiB
C++
121 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2010 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef _LIBINPUT_KEYBOARD_H
|
|
#define _LIBINPUT_KEYBOARD_H
|
|
|
|
#include <input/Input.h>
|
|
#include <input/InputDevice.h>
|
|
#include <utils/Errors.h>
|
|
#include <utils/String8.h>
|
|
#include <utils/PropertyMap.h>
|
|
|
|
namespace android {
|
|
|
|
enum {
|
|
/* Device id of the built in keyboard. */
|
|
DEVICE_ID_BUILT_IN_KEYBOARD = 0,
|
|
|
|
/* Device id of a generic virtual keyboard with a full layout that can be used
|
|
* to synthesize key events. */
|
|
DEVICE_ID_VIRTUAL_KEYBOARD = -1,
|
|
};
|
|
|
|
class KeyLayoutMap;
|
|
class KeyCharacterMap;
|
|
|
|
/**
|
|
* Loads the key layout map and key character map for a keyboard device.
|
|
*/
|
|
class KeyMap {
|
|
public:
|
|
String8 keyLayoutFile;
|
|
sp<KeyLayoutMap> keyLayoutMap;
|
|
|
|
String8 keyCharacterMapFile;
|
|
sp<KeyCharacterMap> keyCharacterMap;
|
|
|
|
KeyMap();
|
|
~KeyMap();
|
|
|
|
status_t load(const InputDeviceIdentifier& deviceIdenfier,
|
|
const PropertyMap* deviceConfiguration);
|
|
|
|
inline bool haveKeyLayout() const {
|
|
return !keyLayoutFile.isEmpty();
|
|
}
|
|
|
|
inline bool haveKeyCharacterMap() const {
|
|
return !keyCharacterMapFile.isEmpty();
|
|
}
|
|
|
|
inline bool isComplete() const {
|
|
return haveKeyLayout() && haveKeyCharacterMap();
|
|
}
|
|
|
|
private:
|
|
bool probeKeyMap(const InputDeviceIdentifier& deviceIdentifier, const String8& name);
|
|
status_t loadKeyLayout(const InputDeviceIdentifier& deviceIdentifier, const String8& name);
|
|
status_t loadKeyCharacterMap(const InputDeviceIdentifier& deviceIdentifier,
|
|
const String8& name);
|
|
String8 getPath(const InputDeviceIdentifier& deviceIdentifier,
|
|
const String8& name, InputDeviceConfigurationFileType type);
|
|
};
|
|
|
|
/**
|
|
* Returns true if the keyboard is eligible for use as a built-in keyboard.
|
|
*/
|
|
extern bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentifier,
|
|
const PropertyMap* deviceConfiguration, const KeyMap* keyMap);
|
|
|
|
/**
|
|
* Gets a key code by its short form label, eg. "HOME".
|
|
* Returns 0 if unknown.
|
|
*/
|
|
extern int32_t getKeyCodeByLabel(const char* label);
|
|
|
|
/**
|
|
* Gets a key flag by its short form label, eg. "WAKE".
|
|
* Returns 0 if unknown.
|
|
*/
|
|
extern uint32_t getKeyFlagByLabel(const char* label);
|
|
|
|
/**
|
|
* Gets a axis by its short form label, eg. "X".
|
|
* Returns -1 if unknown.
|
|
*/
|
|
extern int32_t getAxisByLabel(const char* label);
|
|
|
|
/**
|
|
* Gets a axis label by its id.
|
|
* Returns NULL if unknown.
|
|
*/
|
|
extern const char* getAxisLabel(int32_t axisId);
|
|
|
|
/**
|
|
* Updates a meta state field when a key is pressed or released.
|
|
*/
|
|
extern int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState);
|
|
|
|
/**
|
|
* Returns true if a key is a meta key like ALT or CAPS_LOCK.
|
|
*/
|
|
extern bool isMetaKey(int32_t keyCode);
|
|
|
|
} // namespace android
|
|
|
|
#endif // _LIBINPUT_KEYBOARD_H
|