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-rw-r--r--widget/gonk/libui/Keyboard.cpp300
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diff --git a/widget/gonk/libui/Keyboard.cpp b/widget/gonk/libui/Keyboard.cpp
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index 62bb53b7b..000000000
--- a/widget/gonk/libui/Keyboard.cpp
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-/*
- * 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.
- */
-
-#define LOG_TAG "Keyboard"
-#include "cutils_log.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-
-#include "Keyboard.h"
-#include "KeycodeLabels.h"
-#include "KeyLayoutMap.h"
-#include "KeyCharacterMap.h"
-#include "InputDevice.h"
-#include <utils/Errors.h>
-#include <cutils/properties.h>
-
-namespace android {
-
-// --- KeyMap ---
-
-KeyMap::KeyMap() {
-}
-
-KeyMap::~KeyMap() {
-}
-
-status_t KeyMap::load(const InputDeviceIdentifier& deviceIdenfifier,
- const PropertyMap* deviceConfiguration) {
- // Use the configured key layout if available.
- if (deviceConfiguration) {
- String8 keyLayoutName;
- if (deviceConfiguration->tryGetProperty(String8("keyboard.layout"),
- keyLayoutName)) {
- status_t status = loadKeyLayout(deviceIdenfifier, keyLayoutName);
- if (status == NAME_NOT_FOUND) {
- ALOGE("Configuration for keyboard device '%s' requested keyboard layout '%s' but "
- "it was not found.",
- deviceIdenfifier.name.string(), keyLayoutName.string());
- }
- }
-
- String8 keyCharacterMapName;
- if (deviceConfiguration->tryGetProperty(String8("keyboard.characterMap"),
- keyCharacterMapName)) {
- status_t status = loadKeyCharacterMap(deviceIdenfifier, keyCharacterMapName);
- if (status == NAME_NOT_FOUND) {
- ALOGE("Configuration for keyboard device '%s' requested keyboard character "
- "map '%s' but it was not found.",
- deviceIdenfifier.name.string(), keyLayoutName.string());
- }
- }
-
- if (isComplete()) {
- return OK;
- }
- }
-
- // Try searching by device identifier.
- if (probeKeyMap(deviceIdenfifier, String8::empty())) {
- return OK;
- }
-
- // Fall back on the Generic key map.
- // TODO Apply some additional heuristics here to figure out what kind of
- // generic key map to use (US English, etc.) for typical external keyboards.
- if (probeKeyMap(deviceIdenfifier, String8("Generic"))) {
- return OK;
- }
-
- // Try the Virtual key map as a last resort.
- if (probeKeyMap(deviceIdenfifier, String8("Virtual"))) {
- return OK;
- }
-
- // Give up!
- ALOGE("Could not determine key map for device '%s' and no default key maps were found!",
- deviceIdenfifier.name.string());
- return NAME_NOT_FOUND;
-}
-
-bool KeyMap::probeKeyMap(const InputDeviceIdentifier& deviceIdentifier,
- const String8& keyMapName) {
- if (!haveKeyLayout()) {
- loadKeyLayout(deviceIdentifier, keyMapName);
- }
- if (!haveKeyCharacterMap()) {
- loadKeyCharacterMap(deviceIdentifier, keyMapName);
- }
- return isComplete();
-}
-
-status_t KeyMap::loadKeyLayout(const InputDeviceIdentifier& deviceIdentifier,
- const String8& name) {
- String8 path(getPath(deviceIdentifier, name,
- INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_LAYOUT));
- if (path.isEmpty()) {
- return NAME_NOT_FOUND;
- }
-
- status_t status = KeyLayoutMap::load(path, &keyLayoutMap);
- if (status) {
- return status;
- }
-
- keyLayoutFile.setTo(path);
- return OK;
-}
-
-status_t KeyMap::loadKeyCharacterMap(const InputDeviceIdentifier& deviceIdentifier,
- const String8& name) {
- String8 path(getPath(deviceIdentifier, name,
- INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_CHARACTER_MAP));
- if (path.isEmpty()) {
- return NAME_NOT_FOUND;
- }
-
- status_t status = KeyCharacterMap::load(path,
- KeyCharacterMap::FORMAT_BASE, &keyCharacterMap);
- if (status) {
- return status;
- }
-
- keyCharacterMapFile.setTo(path);
- return OK;
-}
-
-String8 KeyMap::getPath(const InputDeviceIdentifier& deviceIdentifier,
- const String8& name, InputDeviceConfigurationFileType type) {
- return name.isEmpty()
- ? getInputDeviceConfigurationFilePathByDeviceIdentifier(deviceIdentifier, type)
- : getInputDeviceConfigurationFilePathByName(name, type);
-}
-
-
-// --- Global functions ---
-
-bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentifier,
- const PropertyMap* deviceConfiguration, const KeyMap* keyMap) {
- if (!keyMap->haveKeyCharacterMap()
- || keyMap->keyCharacterMap->getKeyboardType()
- == KeyCharacterMap::KEYBOARD_TYPE_SPECIAL_FUNCTION) {
- return false;
- }
-
- if (deviceConfiguration) {
- bool builtIn = false;
- if (deviceConfiguration->tryGetProperty(String8("keyboard.builtIn"), builtIn)
- && builtIn) {
- return true;
- }
- }
-
- return strstr(deviceIdentifier.name.string(), "-keypad");
-}
-
-static int lookupValueByLabel(const char* literal, const KeycodeLabel *list) {
- while (list->literal) {
- if (strcmp(literal, list->literal) == 0) {
- return list->value;
- }
- list++;
- }
- return list->value;
-}
-
-static const char* lookupLabelByValue(int value, const KeycodeLabel *list) {
- while (list->literal) {
- if (list->value == value) {
- return list->literal;
- }
- list++;
- }
- return NULL;
-}
-
-int32_t getKeyCodeByLabel(const char* label) {
- return int32_t(lookupValueByLabel(label, KEYCODES));
-}
-
-uint32_t getKeyFlagByLabel(const char* label) {
- return uint32_t(lookupValueByLabel(label, FLAGS));
-}
-
-int32_t getAxisByLabel(const char* label) {
- return int32_t(lookupValueByLabel(label, AXES));
-}
-
-const char* getAxisLabel(int32_t axisId) {
- return lookupLabelByValue(axisId, AXES);
-}
-
-int32_t getLedByLabel(const char* label) {
- return int32_t(lookupValueByLabel(label, LEDS));
-}
-static int32_t setEphemeralMetaState(int32_t mask, bool down, int32_t oldMetaState) {
- int32_t newMetaState;
- if (down) {
- newMetaState = oldMetaState | mask;
- } else {
- newMetaState = oldMetaState &
- ~(mask | AMETA_ALT_ON | AMETA_SHIFT_ON | AMETA_CTRL_ON | AMETA_META_ON);
- }
-
- if (newMetaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
- newMetaState |= AMETA_ALT_ON;
- }
-
- if (newMetaState & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
- newMetaState |= AMETA_SHIFT_ON;
- }
-
- if (newMetaState & (AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON)) {
- newMetaState |= AMETA_CTRL_ON;
- }
-
- if (newMetaState & (AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON)) {
- newMetaState |= AMETA_META_ON;
- }
- return newMetaState;
-}
-
-static int32_t toggleLockedMetaState(int32_t mask, bool down, int32_t oldMetaState) {
- if (down) {
- return oldMetaState;
- } else {
- return oldMetaState ^ mask;
- }
-}
-
-int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState) {
- switch (keyCode) {
- case AKEYCODE_ALT_LEFT:
- return setEphemeralMetaState(AMETA_ALT_LEFT_ON, down, oldMetaState);
- case AKEYCODE_ALT_RIGHT:
- return setEphemeralMetaState(AMETA_ALT_RIGHT_ON, down, oldMetaState);
- case AKEYCODE_SHIFT_LEFT:
- return setEphemeralMetaState(AMETA_SHIFT_LEFT_ON, down, oldMetaState);
- case AKEYCODE_SHIFT_RIGHT:
- return setEphemeralMetaState(AMETA_SHIFT_RIGHT_ON, down, oldMetaState);
- case AKEYCODE_SYM:
- return setEphemeralMetaState(AMETA_SYM_ON, down, oldMetaState);
- case AKEYCODE_FUNCTION:
- return setEphemeralMetaState(AMETA_FUNCTION_ON, down, oldMetaState);
- case AKEYCODE_CTRL_LEFT:
- return setEphemeralMetaState(AMETA_CTRL_LEFT_ON, down, oldMetaState);
- case AKEYCODE_CTRL_RIGHT:
- return setEphemeralMetaState(AMETA_CTRL_RIGHT_ON, down, oldMetaState);
- case AKEYCODE_META_LEFT:
- return setEphemeralMetaState(AMETA_META_LEFT_ON, down, oldMetaState);
- case AKEYCODE_META_RIGHT:
- return setEphemeralMetaState(AMETA_META_RIGHT_ON, down, oldMetaState);
- case AKEYCODE_CAPS_LOCK:
- return toggleLockedMetaState(AMETA_CAPS_LOCK_ON, down, oldMetaState);
- case AKEYCODE_NUM_LOCK:
- return toggleLockedMetaState(AMETA_NUM_LOCK_ON, down, oldMetaState);
- case AKEYCODE_SCROLL_LOCK:
- return toggleLockedMetaState(AMETA_SCROLL_LOCK_ON, down, oldMetaState);
- default:
- return oldMetaState;
- }
-}
-
-bool isMetaKey(int32_t keyCode) {
- switch (keyCode) {
- case AKEYCODE_ALT_LEFT:
- case AKEYCODE_ALT_RIGHT:
- case AKEYCODE_SHIFT_LEFT:
- case AKEYCODE_SHIFT_RIGHT:
- case AKEYCODE_SYM:
- case AKEYCODE_FUNCTION:
- case AKEYCODE_CTRL_LEFT:
- case AKEYCODE_CTRL_RIGHT:
- case AKEYCODE_META_LEFT:
- case AKEYCODE_META_RIGHT:
- case AKEYCODE_CAPS_LOCK:
- case AKEYCODE_NUM_LOCK:
- case AKEYCODE_SCROLL_LOCK:
- return true;
- default:
- return false;
- }
-}
-
-
-} // namespace android