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am 2f3c3eb4: Merge "Allow defining replacement key events in keymap" into mnc-dr-dev

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* commit '2f3c3eb4e47d7cb6ef67e0fd2063e4b93e38e9ec':
  Allow defining replacement key events in keymap
This commit is contained in:
Puneet Kumar 2015-10-08 09:08:31 +00:00 committed by Android Git Automerger
commit ec1323dbd4
4 changed files with 117 additions and 15 deletions
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8
include/input/KeyCharacterMap.h
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@ -124,6 +124,11 @@ public:
* the mapping in some way. */
status_t mapKey(int32_t scanCode, int32_t usageCode, int32_t* outKeyCode) const;
/* Tries to find a replacement key code for a given key code and meta state
* in character map. */
void tryRemapKey(int32_t scanCode, int32_t metaState,
int32_t* outKeyCode, int32_t* outMetaState) const;
#if HAVE_ANDROID_OS
/* Reads a key map from a parcel. */
static sp<KeyCharacterMap> readFromParcel(Parcel* parcel);
@ -151,6 +156,9 @@ private:
/* The fallback keycode if the key is not handled. */
int32_t fallbackKeyCode;
/* The replacement keycode if the key has to be replaced outright. */
int32_t replacementKeyCode;
};
struct Key {

7
include/input/Keyboard.h
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@ -87,6 +87,13 @@ extern bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentif
*/
extern int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState);
/**
* Normalizes the meta state such that if either the left or right modifier
* meta state bits are set then the result will also include the universal
* bit for that modifier.
*/
extern int32_t normalizeMetaState(int32_t oldMetaState);
/**
* Returns true if a key is a meta key like ALT or CAPS_LOCK.
*/

98
libs/input/KeyCharacterMap.cpp
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@ -332,22 +332,22 @@ status_t KeyCharacterMap::mapKey(int32_t scanCode, int32_t usageCode, int32_t* o
if (usageCode) {
ssize_t index = mKeysByUsageCode.indexOfKey(usageCode);
if (index >= 0) {
*outKeyCode = mKeysByUsageCode.valueAt(index);
#if DEBUG_MAPPING
ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d.",
scanCode, usageCode, *outKeyCode);
#endif
*outKeyCode = mKeysByUsageCode.valueAt(index);
return OK;
}
}
if (scanCode) {
ssize_t index = mKeysByScanCode.indexOfKey(scanCode);
if (index >= 0) {
*outKeyCode = mKeysByScanCode.valueAt(index);
#if DEBUG_MAPPING
ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d.",
scanCode, usageCode, *outKeyCode);
#endif
*outKeyCode = mKeysByScanCode.valueAt(index);
return OK;
}
}
@ -359,6 +359,48 @@ status_t KeyCharacterMap::mapKey(int32_t scanCode, int32_t usageCode, int32_t* o
return NAME_NOT_FOUND;
}
void KeyCharacterMap::tryRemapKey(int32_t keyCode, int32_t metaState,
int32_t *outKeyCode, int32_t *outMetaState) const {
*outKeyCode = keyCode;
*outMetaState = metaState;
const Key* key;
const Behavior* behavior;
if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
if (behavior->replacementKeyCode) {
*outKeyCode = behavior->replacementKeyCode;
int32_t newMetaState = metaState & ~behavior->metaState;
// Reset dependent meta states.
if (behavior->metaState & AMETA_ALT_ON) {
newMetaState &= ~(AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON);
}
if (behavior->metaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
newMetaState &= ~AMETA_ALT_ON;
}
if (behavior->metaState & AMETA_CTRL_ON) {
newMetaState &= ~(AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON);
}
if (behavior->metaState & (AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON)) {
newMetaState &= ~AMETA_CTRL_ON;
}
if (behavior->metaState & AMETA_SHIFT_ON) {
newMetaState &= ~(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON);
}
if (behavior->metaState & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
newMetaState &= ~AMETA_SHIFT_ON;
}
// ... and put universal bits back if needed
*outMetaState = normalizeMetaState(newMetaState);
}
}
#if DEBUG_MAPPING
ALOGD("tryRemapKey: keyCode=%d, metaState=0x%08x ~ "
"replacement keyCode=%d, replacement metaState=0x%08x.",
keyCode, metaState, *outKeyCode, *outMetaState);
#endif
}
bool KeyCharacterMap::getKey(int32_t keyCode, const Key** outKey) const {
ssize_t index = mKeys.indexOfKey(keyCode);
if (index >= 0) {
@ -584,6 +626,7 @@ sp<KeyCharacterMap> KeyCharacterMap::readFromParcel(Parcel* parcel) {
int32_t metaState = parcel->readInt32();
char16_t character = parcel->readInt32();
int32_t fallbackKeyCode = parcel->readInt32();
int32_t replacementKeyCode = parcel->readInt32();
if (parcel->errorCheck()) {
return NULL;
}
@ -592,6 +635,7 @@ sp<KeyCharacterMap> KeyCharacterMap::readFromParcel(Parcel* parcel) {
behavior->metaState = metaState;
behavior->character = character;
behavior->fallbackKeyCode = fallbackKeyCode;
behavior->replacementKeyCode = replacementKeyCode;
if (lastBehavior) {
lastBehavior->next = behavior;
} else {
@ -624,6 +668,7 @@ void KeyCharacterMap::writeToParcel(Parcel* parcel) const {
parcel->writeInt32(behavior->metaState);
parcel->writeInt32(behavior->character);
parcel->writeInt32(behavior->fallbackKeyCode);
parcel->writeInt32(behavior->replacementKeyCode);
}
parcel->writeInt32(0);
}
@ -655,13 +700,14 @@ KeyCharacterMap::Key::~Key() {
// --- KeyCharacterMap::Behavior ---
KeyCharacterMap::Behavior::Behavior() :
next(NULL), metaState(0), character(0), fallbackKeyCode(0) {
next(NULL), metaState(0), character(0), fallbackKeyCode(0), replacementKeyCode(0) {
}
KeyCharacterMap::Behavior::Behavior(const Behavior& other) :
next(other.next ? new Behavior(*other.next) : NULL),
metaState(other.metaState), character(other.character),
fallbackKeyCode(other.fallbackKeyCode) {
fallbackKeyCode(other.fallbackKeyCode),
replacementKeyCode(other.replacementKeyCode) {
}
@ -923,6 +969,7 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
Behavior behavior;
bool haveCharacter = false;
bool haveFallback = false;
bool haveReplacement = false;
do {
char ch = mTokenizer->peekChar();
@ -939,6 +986,11 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
mTokenizer->getLocation().string());
return BAD_VALUE;
}
if (haveReplacement) {
ALOGE("%s: Cannot combine character literal with replace action.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
behavior.character = character;
haveCharacter = true;
} else {
@ -949,6 +1001,11 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
mTokenizer->getLocation().string());
return BAD_VALUE;
}
if (haveReplacement) {
ALOGE("%s: Cannot combine 'none' with replace action.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
haveCharacter = true;
} else if (token == "fallback") {
mTokenizer->skipDelimiters(WHITESPACE);
@ -960,13 +1017,36 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
token.string());
return BAD_VALUE;
}
if (haveFallback) {
ALOGE("%s: Cannot combine multiple fallback key codes.",
if (haveFallback || haveReplacement) {
ALOGE("%s: Cannot combine multiple fallback/replacement key codes.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
behavior.fallbackKeyCode = keyCode;
haveFallback = true;
} else if (token == "replace") {
mTokenizer->skipDelimiters(WHITESPACE);
token = mTokenizer->nextToken(WHITESPACE);
int32_t keyCode = getKeyCodeByLabel(token.string());
if (!keyCode) {
ALOGE("%s: Invalid key code label for replace, got '%s'.",
mTokenizer->getLocation().string(),
token.string());
return BAD_VALUE;
}
if (haveCharacter) {
ALOGE("%s: Cannot combine character literal with replace action.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
if (haveFallback || haveReplacement) {
ALOGE("%s: Cannot combine multiple fallback/replacement key codes.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
behavior.replacementKeyCode = keyCode;
haveReplacement = true;
} else {
ALOGE("%s: Expected a key behavior after ':'.",
mTokenizer->getLocation().string());
@ -1016,8 +1096,10 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
newBehavior->next = key->firstBehavior;
key->firstBehavior = newBehavior;
#if DEBUG_PARSER
ALOGD("Parsed key meta: keyCode=%d, meta=0x%x, char=%d, fallback=%d.", mKeyCode,
newBehavior->metaState, newBehavior->character, newBehavior->fallbackKeyCode);
ALOGD("Parsed key meta: keyCode=%d, meta=0x%x, char=%d, fallback=%d replace=%d.",
mKeyCode,
newBehavior->metaState, newBehavior->character,
newBehavior->fallbackKeyCode, newBehavior->replacementKeyCode);
#endif
break;
}

5
libs/input/Keyboard.cpp
View File

@ -176,6 +176,11 @@ static int32_t setEphemeralMetaState(int32_t mask, bool down, int32_t oldMetaSta
~(mask | AMETA_ALT_ON | AMETA_SHIFT_ON | AMETA_CTRL_ON | AMETA_META_ON);
}
return normalizeMetaState(newMetaState);
}
int32_t normalizeMetaState(int32_t oldMetaState) {
int32_t newMetaState = oldMetaState;
if (newMetaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
newMetaState |= AMETA_ALT_ON;
}