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-rw-r--r--include/input/KeyCharacterMap.h18
-rw-r--r--libs/input/KeyCharacterMap.cpp115
2 files changed, 44 insertions, 89 deletions
diff --git a/include/input/KeyCharacterMap.h b/include/input/KeyCharacterMap.h
index 585ea3c315..1c9a5eaac1 100644
--- a/include/input/KeyCharacterMap.h
+++ b/include/input/KeyCharacterMap.h
@@ -18,6 +18,7 @@
#define _LIBINPUT_KEY_CHARACTER_MAP_H
#include <stdint.h>
+#include <list>
#ifdef __linux__
#include <binder/IBinder.h>
@@ -152,29 +153,22 @@ public:
private:
struct Behavior {
- Behavior();
- Behavior(const Behavior& other);
-
- /* The next behavior in the list, or NULL if none. */
- Behavior* next;
-
/* The meta key modifiers for this behavior. */
- int32_t metaState;
+ int32_t metaState = 0;
/* The character to insert. */
- char16_t character;
+ char16_t character = 0;
/* The fallback keycode if the key is not handled. */
- int32_t fallbackKeyCode;
+ int32_t fallbackKeyCode = 0;
/* The replacement keycode if the key has to be replaced outright. */
- int32_t replacementKeyCode;
+ int32_t replacementKeyCode = 0;
};
struct Key {
Key();
Key(const Key& other);
- ~Key();
/* The single character label printed on the key, or 0 if none. */
char16_t label;
@@ -184,7 +178,7 @@ private:
/* The list of key behaviors sorted from most specific to least specific
* meta key binding. */
- Behavior* firstBehavior;
+ std::list<Behavior> behaviors;
};
class Parser {
diff --git a/libs/input/KeyCharacterMap.cpp b/libs/input/KeyCharacterMap.cpp
index 5cb844eb19..422e6e09eb 100644
--- a/libs/input/KeyCharacterMap.cpp
+++ b/libs/input/KeyCharacterMap.cpp
@@ -345,12 +345,12 @@ char16_t KeyCharacterMap::getMatch(int32_t keyCode, const char16_t* chars, size_
// Try to find the most general behavior that maps to this character.
// For example, the base key behavior will usually be last in the list.
// However, if we find a perfect meta state match for one behavior then use that one.
- for (const Behavior* behavior = key->firstBehavior; behavior; behavior = behavior->next) {
- if (behavior->character) {
+ for (const Behavior& behavior : key->behaviors) {
+ if (behavior.character) {
for (size_t i = 0; i < numChars; i++) {
- if (behavior->character == chars[i]) {
- result = behavior->character;
- if ((behavior->metaState & metaState) == behavior->metaState) {
+ if (behavior.character == chars[i]) {
+ result = behavior.character;
+ if ((behavior.metaState & metaState) == behavior.metaState) {
goto ExactMatch;
}
break;
@@ -485,12 +485,10 @@ const KeyCharacterMap::Behavior* KeyCharacterMap::getKeyBehavior(int32_t keyCode
int32_t metaState) const {
const Key* key;
if (getKey(keyCode, &key)) {
- const Behavior* behavior = key->firstBehavior;
- while (behavior) {
- if (matchesMetaState(metaState, behavior->metaState)) {
- return behavior;
+ for (const Behavior& behavior : key->behaviors) {
+ if (matchesMetaState(metaState, behavior.metaState)) {
+ return &behavior;
}
- behavior = behavior->next;
}
}
return nullptr;
@@ -538,12 +536,12 @@ bool KeyCharacterMap::findKey(char16_t ch, int32_t* outKeyCode, int32_t* outMeta
// Try to find the most general behavior that maps to this character.
// For example, the base key behavior will usually be last in the list.
const Behavior* found = nullptr;
- for (const Behavior* behavior = key->firstBehavior; behavior; behavior = behavior->next) {
- if (behavior->character == ch) {
- found = behavior;
+ for (const Behavior& behavior : key->behaviors) {
+ if (behavior.character == ch) {
+ found = &behavior;
}
}
- if (found) {
+ if (found != nullptr) {
*outKeyCode = mKeys.keyAt(i);
*outMetaState = found->metaState;
return true;
@@ -701,7 +699,6 @@ std::shared_ptr<KeyCharacterMap> KeyCharacterMap::readFromParcel(Parcel* parcel)
key->number = number;
map->mKeys.add(keyCode, key);
- Behavior* lastBehavior = nullptr;
while (parcel->readInt32()) {
int32_t metaState = parcel->readInt32();
char16_t character = parcel->readInt32();
@@ -711,17 +708,12 @@ std::shared_ptr<KeyCharacterMap> KeyCharacterMap::readFromParcel(Parcel* parcel)
return nullptr;
}
- Behavior* behavior = new Behavior();
- behavior->metaState = metaState;
- behavior->character = character;
- behavior->fallbackKeyCode = fallbackKeyCode;
- behavior->replacementKeyCode = replacementKeyCode;
- if (lastBehavior) {
- lastBehavior->next = behavior;
- } else {
- key->firstBehavior = behavior;
- }
- lastBehavior = behavior;
+ key->behaviors.push_back({
+ .metaState = metaState,
+ .character = character,
+ .fallbackKeyCode = fallbackKeyCode,
+ .replacementKeyCode = replacementKeyCode,
+ });
}
if (parcel->errorCheck()) {
@@ -772,13 +764,12 @@ void KeyCharacterMap::writeToParcel(Parcel* parcel) const {
parcel->writeInt32(keyCode);
parcel->writeInt32(key->label);
parcel->writeInt32(key->number);
- for (const Behavior* behavior = key->firstBehavior; behavior != nullptr;
- behavior = behavior->next) {
+ for (const Behavior& behavior : key->behaviors) {
parcel->writeInt32(1);
- parcel->writeInt32(behavior->metaState);
- parcel->writeInt32(behavior->character);
- parcel->writeInt32(behavior->fallbackKeyCode);
- parcel->writeInt32(behavior->replacementKeyCode);
+ parcel->writeInt32(behavior.metaState);
+ parcel->writeInt32(behavior.character);
+ parcel->writeInt32(behavior.fallbackKeyCode);
+ parcel->writeInt32(behavior.replacementKeyCode);
}
parcel->writeInt32(0);
}
@@ -799,38 +790,10 @@ void KeyCharacterMap::writeToParcel(Parcel* parcel) const {
// --- KeyCharacterMap::Key ---
-KeyCharacterMap::Key::Key() :
- label(0), number(0), firstBehavior(nullptr) {
-}
-
-KeyCharacterMap::Key::Key(const Key& other) :
- label(other.label), number(other.number),
- firstBehavior(other.firstBehavior ? new Behavior(*other.firstBehavior) : nullptr) {
-}
-
-KeyCharacterMap::Key::~Key() {
- Behavior* behavior = firstBehavior;
- while (behavior) {
- Behavior* next = behavior->next;
- delete behavior;
- behavior = next;
- }
-}
-
-
-// --- KeyCharacterMap::Behavior ---
-
-KeyCharacterMap::Behavior::Behavior() :
- next(nullptr), metaState(0), character(0), fallbackKeyCode(0), replacementKeyCode(0) {
-}
-
-KeyCharacterMap::Behavior::Behavior(const Behavior& other) :
- next(other.next ? new Behavior(*other.next) : nullptr),
- metaState(other.metaState), character(other.character),
- fallbackKeyCode(other.fallbackKeyCode),
- replacementKeyCode(other.replacementKeyCode) {
-}
+KeyCharacterMap::Key::Key() : label(0), number(0) {}
+KeyCharacterMap::Key::Key(const Key& other)
+ : label(other.label), number(other.number), behaviors(other.behaviors) {}
// --- KeyCharacterMap::Parser ---
@@ -1208,23 +1171,21 @@ status_t KeyCharacterMap::Parser::parseKeyProperty() {
#endif
break;
case PROPERTY_META: {
- for (Behavior* b = key->firstBehavior; b; b = b->next) {
- if (b->metaState == property.metaState) {
+ for (const Behavior& b : key->behaviors) {
+ if (b.metaState == property.metaState) {
ALOGE("%s: Duplicate key behavior for modifier.",
mTokenizer->getLocation().string());
return BAD_VALUE;
}
}
- Behavior* newBehavior = new Behavior(behavior);
- newBehavior->metaState = property.metaState;
- newBehavior->next = key->firstBehavior;
- key->firstBehavior = newBehavior;
-#if DEBUG_PARSER
- 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
+ Behavior newBehavior = behavior;
+ newBehavior.metaState = property.metaState;
+ key->behaviors.push_front(newBehavior);
+ ALOGD_IF(DEBUG_PARSER,
+ "Parsed key meta: keyCode=%d, meta=0x%x, char=%d, fallback=%d replace=%d.",
+ mKeyCode, key->behaviors.front().metaState, key->behaviors.front().character,
+ key->behaviors.front().fallbackKeyCode,
+ key->behaviors.front().replacementKeyCode);
break;
}
}
@@ -1237,8 +1198,8 @@ status_t KeyCharacterMap::Parser::finishKey(Key* key) {
if (!key->number) {
char16_t digit = 0;
char16_t symbol = 0;
- for (Behavior* b = key->firstBehavior; b; b = b->next) {
- char16_t ch = b->character;
+ for (const Behavior& b : key->behaviors) {
+ char16_t ch = b.character;
if (ch) {
if (ch >= '0' && ch <= '9') {
digit = ch;
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-21 18:16:19 +0000