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Diffstat (limited to 'widget/gonk/libui/KeyLayoutMap.cpp')
| -rw-r--r-- | widget/gonk/libui/KeyLayoutMap.cpp | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/widget/gonk/libui/KeyLayoutMap.cpp b/widget/gonk/libui/KeyLayoutMap.cpp new file mode 100644 index 000000000..8af4b84e0 --- /dev/null +++ b/widget/gonk/libui/KeyLayoutMap.cpp @@ -0,0 +1,446 @@ +/* + * Copyright (C) 2008 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 "KeyLayoutMap" +#include "cutils_log.h" + +#include <stdlib.h> +#include "android_keycodes.h" +#include "Keyboard.h" +#include "KeyLayoutMap.h" +#include <utils/Errors.h> +#include "Tokenizer.h" +#include <utils/Timers.h> + +// Enables debug output for the parser. +#define DEBUG_PARSER 0 + +// Enables debug output for parser performance. +#define DEBUG_PARSER_PERFORMANCE 0 + +// Enables debug output for mapping. +#define DEBUG_MAPPING 0 + + +namespace android { + +static const char* WHITESPACE = " \t\r"; + +// --- KeyLayoutMap --- + +KeyLayoutMap::KeyLayoutMap() { +} + +KeyLayoutMap::~KeyLayoutMap() { +} + +status_t KeyLayoutMap::load(const String8& filename, sp<KeyLayoutMap>* outMap) { + outMap->clear(); + + Tokenizer* tokenizer; + status_t status = Tokenizer::open(filename, &tokenizer); + if (status) { + ALOGE("Error %d opening key layout map file %s.", status, filename.string()); + } else { + sp<KeyLayoutMap> map = new KeyLayoutMap(); + if (!map.get()) { + ALOGE("Error allocating key layout map."); + status = NO_MEMORY; + } else { +#if DEBUG_PARSER_PERFORMANCE + nsecs_t startTime = systemTime(SYSTEM_TIME_MONOTONIC); +#endif + Parser parser(map.get(), tokenizer); + status = parser.parse(); +#if DEBUG_PARSER_PERFORMANCE + nsecs_t elapsedTime = systemTime(SYSTEM_TIME_MONOTONIC) - startTime; + ALOGD("Parsed key layout map file '%s' %d lines in %0.3fms.", + tokenizer->getFilename().string(), tokenizer->getLineNumber(), + elapsedTime / 1000000.0); +#endif + if (!status) { + *outMap = map; + } + } + delete tokenizer; + } + return status; +} + +status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode, + int32_t* outKeyCode, uint32_t* outFlags) const { + const Key* key = getKey(scanCode, usageCode); + if (!key) { +#if DEBUG_MAPPING + ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode, usageCode); +#endif + *outKeyCode = AKEYCODE_UNKNOWN; + *outFlags = 0; + return NAME_NOT_FOUND; + } + + *outKeyCode = key->keyCode; + *outFlags = key->flags; + +#if DEBUG_MAPPING + ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d, outFlags=0x%08x.", + scanCode, usageCode, *outKeyCode, *outFlags); +#endif + return NO_ERROR; +} + +const KeyLayoutMap::Key* KeyLayoutMap::getKey(int32_t scanCode, int32_t usageCode) const { + if (usageCode) { + ssize_t index = mKeysByUsageCode.indexOfKey(usageCode); + if (index >= 0) { + return &mKeysByUsageCode.valueAt(index); + } + } + if (scanCode) { + ssize_t index = mKeysByScanCode.indexOfKey(scanCode); + if (index >= 0) { + return &mKeysByScanCode.valueAt(index); + } + } + return NULL; +} + +status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const { + const size_t N = mKeysByScanCode.size(); + for (size_t i=0; i<N; i++) { + if (mKeysByScanCode.valueAt(i).keyCode == keyCode) { + outScanCodes->add(mKeysByScanCode.keyAt(i)); + } + } + return NO_ERROR; +} + +status_t KeyLayoutMap::mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const { + ssize_t index = mAxes.indexOfKey(scanCode); + if (index < 0) { +#if DEBUG_MAPPING + ALOGD("mapAxis: scanCode=%d ~ Failed.", scanCode); +#endif + return NAME_NOT_FOUND; + } + + *outAxisInfo = mAxes.valueAt(index); + +#if DEBUG_MAPPING + ALOGD("mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, " + "splitValue=%d, flatOverride=%d.", + scanCode, + outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis, + outAxisInfo->splitValue, outAxisInfo->flatOverride); +#endif + return NO_ERROR; +} + +status_t KeyLayoutMap::findScanCodeForLed(int32_t ledCode, int32_t* outScanCode) const { + const size_t N = mLedsByScanCode.size(); + for (size_t i = 0; i < N; i++) { + if (mLedsByScanCode.valueAt(i).ledCode == ledCode) { + *outScanCode = mLedsByScanCode.keyAt(i); +#if DEBUG_MAPPING + ALOGD("findScanCodeForLed: ledCode=%d, scanCode=%d.", ledCode, *outScanCode); +#endif + return NO_ERROR; + } + } +#if DEBUG_MAPPING + ALOGD("findScanCodeForLed: ledCode=%d ~ Not found.", ledCode); +#endif + return NAME_NOT_FOUND; +} + +status_t KeyLayoutMap::findUsageCodeForLed(int32_t ledCode, int32_t* outUsageCode) const { + const size_t N = mLedsByUsageCode.size(); + for (size_t i = 0; i < N; i++) { + if (mLedsByUsageCode.valueAt(i).ledCode == ledCode) { + *outUsageCode = mLedsByUsageCode.keyAt(i); +#if DEBUG_MAPPING + ALOGD("findUsageForLed: ledCode=%d, usage=%x.", ledCode, *outUsageCode); +#endif + return NO_ERROR; + } + } +#if DEBUG_MAPPING + ALOGD("findUsageForLed: ledCode=%d ~ Not found.", ledCode); +#endif + return NAME_NOT_FOUND; +} + + +// --- KeyLayoutMap::Parser --- + +KeyLayoutMap::Parser::Parser(KeyLayoutMap* map, Tokenizer* tokenizer) : + mMap(map), mTokenizer(tokenizer) { +} + +KeyLayoutMap::Parser::~Parser() { +} + +status_t KeyLayoutMap::Parser::parse() { + while (!mTokenizer->isEof()) { +#if DEBUG_PARSER + ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(), + mTokenizer->peekRemainderOfLine().string()); +#endif + + mTokenizer->skipDelimiters(WHITESPACE); + + if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') { + String8 keywordToken = mTokenizer->nextToken(WHITESPACE); + if (keywordToken == "key") { + mTokenizer->skipDelimiters(WHITESPACE); + status_t status = parseKey(); + if (status) return status; + } else if (keywordToken == "axis") { + mTokenizer->skipDelimiters(WHITESPACE); + status_t status = parseAxis(); + if (status) return status; + } else if (keywordToken == "led") { + mTokenizer->skipDelimiters(WHITESPACE); + status_t status = parseLed(); + if (status) return status; + } else { + ALOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(), + keywordToken.string()); + return BAD_VALUE; + } + + mTokenizer->skipDelimiters(WHITESPACE); + if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') { + ALOGE("%s: Expected end of line or trailing comment, got '%s'.", + mTokenizer->getLocation().string(), + mTokenizer->peekRemainderOfLine().string()); + return BAD_VALUE; + } + } + + mTokenizer->nextLine(); + } + return NO_ERROR; +} + +status_t KeyLayoutMap::Parser::parseKey() { + String8 codeToken = mTokenizer->nextToken(WHITESPACE); + bool mapUsage = false; + if (codeToken == "usage") { + mapUsage = true; + mTokenizer->skipDelimiters(WHITESPACE); + codeToken = mTokenizer->nextToken(WHITESPACE); + } + + char* end; + int32_t code = int32_t(strtol(codeToken.string(), &end, 0)); + if (*end) { + ALOGE("%s: Expected key %s number, got '%s'.", mTokenizer->getLocation().string(), + mapUsage ? "usage" : "scan code", codeToken.string()); + return BAD_VALUE; + } + KeyedVector<int32_t, Key>& map = + mapUsage ? mMap->mKeysByUsageCode : mMap->mKeysByScanCode; + if (map.indexOfKey(code) >= 0) { + ALOGE("%s: Duplicate entry for key %s '%s'.", mTokenizer->getLocation().string(), + mapUsage ? "usage" : "scan code", codeToken.string()); + return BAD_VALUE; + } + + mTokenizer->skipDelimiters(WHITESPACE); + String8 keyCodeToken = mTokenizer->nextToken(WHITESPACE); + int32_t keyCode = getKeyCodeByLabel(keyCodeToken.string()); + if (!keyCode) { + ALOGE("%s: Expected key code label, got '%s'.", mTokenizer->getLocation().string(), + keyCodeToken.string()); + return BAD_VALUE; + } + + uint32_t flags = 0; + for (;;) { + mTokenizer->skipDelimiters(WHITESPACE); + if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') break; + + String8 flagToken = mTokenizer->nextToken(WHITESPACE); + uint32_t flag = getKeyFlagByLabel(flagToken.string()); + if (!flag) { + ALOGE("%s: Expected key flag label, got '%s'.", mTokenizer->getLocation().string(), + flagToken.string()); + return BAD_VALUE; + } + if (flags & flag) { + ALOGE("%s: Duplicate key flag '%s'.", mTokenizer->getLocation().string(), + flagToken.string()); + return BAD_VALUE; + } + flags |= flag; + } + +#if DEBUG_PARSER + ALOGD("Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.", + mapUsage ? "usage" : "scan code", code, keyCode, flags); +#endif + Key key; + key.keyCode = keyCode; + key.flags = flags; + map.add(code, key); + return NO_ERROR; +} + +status_t KeyLayoutMap::Parser::parseAxis() { + String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE); + char* end; + int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0)); + if (*end) { + ALOGE("%s: Expected axis scan code number, got '%s'.", mTokenizer->getLocation().string(), + scanCodeToken.string()); + return BAD_VALUE; + } + if (mMap->mAxes.indexOfKey(scanCode) >= 0) { + ALOGE("%s: Duplicate entry for axis scan code '%s'.", mTokenizer->getLocation().string(), + scanCodeToken.string()); + return BAD_VALUE; + } + + AxisInfo axisInfo; + + mTokenizer->skipDelimiters(WHITESPACE); + String8 token = mTokenizer->nextToken(WHITESPACE); + if (token == "invert") { + axisInfo.mode = AxisInfo::MODE_INVERT; + + mTokenizer->skipDelimiters(WHITESPACE); + String8 axisToken = mTokenizer->nextToken(WHITESPACE); + axisInfo.axis = getAxisByLabel(axisToken.string()); + if (axisInfo.axis < 0) { + ALOGE("%s: Expected inverted axis label, got '%s'.", + mTokenizer->getLocation().string(), axisToken.string()); + return BAD_VALUE; + } + } else if (token == "split") { + axisInfo.mode = AxisInfo::MODE_SPLIT; + + mTokenizer->skipDelimiters(WHITESPACE); + String8 splitToken = mTokenizer->nextToken(WHITESPACE); + axisInfo.splitValue = int32_t(strtol(splitToken.string(), &end, 0)); + if (*end) { + ALOGE("%s: Expected split value, got '%s'.", + mTokenizer->getLocation().string(), splitToken.string()); + return BAD_VALUE; + } + + mTokenizer->skipDelimiters(WHITESPACE); + String8 lowAxisToken = mTokenizer->nextToken(WHITESPACE); + axisInfo.axis = getAxisByLabel(lowAxisToken.string()); + if (axisInfo.axis < 0) { + ALOGE("%s: Expected low axis label, got '%s'.", + mTokenizer->getLocation().string(), lowAxisToken.string()); + return BAD_VALUE; + } + + mTokenizer->skipDelimiters(WHITESPACE); + String8 highAxisToken = mTokenizer->nextToken(WHITESPACE); + axisInfo.highAxis = getAxisByLabel(highAxisToken.string()); + if (axisInfo.highAxis < 0) { + ALOGE("%s: Expected high axis label, got '%s'.", + mTokenizer->getLocation().string(), highAxisToken.string()); + return BAD_VALUE; + } + } else { + axisInfo.axis = getAxisByLabel(token.string()); + if (axisInfo.axis < 0) { + ALOGE("%s: Expected axis label, 'split' or 'invert', got '%s'.", + mTokenizer->getLocation().string(), token.string()); + return BAD_VALUE; + } + } + + for (;;) { + mTokenizer->skipDelimiters(WHITESPACE); + if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') { + break; + } + String8 keywordToken = mTokenizer->nextToken(WHITESPACE); + if (keywordToken == "flat") { + mTokenizer->skipDelimiters(WHITESPACE); + String8 flatToken = mTokenizer->nextToken(WHITESPACE); + axisInfo.flatOverride = int32_t(strtol(flatToken.string(), &end, 0)); + if (*end) { + ALOGE("%s: Expected flat value, got '%s'.", + mTokenizer->getLocation().string(), flatToken.string()); + return BAD_VALUE; + } + } else { + ALOGE("%s: Expected keyword 'flat', got '%s'.", + mTokenizer->getLocation().string(), keywordToken.string()); + return BAD_VALUE; + } + } + +#if DEBUG_PARSER + ALOGD("Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, " + "splitValue=%d, flatOverride=%d.", + scanCode, + axisInfo.mode, axisInfo.axis, axisInfo.highAxis, + axisInfo.splitValue, axisInfo.flatOverride); +#endif + mMap->mAxes.add(scanCode, axisInfo); + return NO_ERROR; +} + +status_t KeyLayoutMap::Parser::parseLed() { + String8 codeToken = mTokenizer->nextToken(WHITESPACE); + bool mapUsage = false; + if (codeToken == "usage") { + mapUsage = true; + mTokenizer->skipDelimiters(WHITESPACE); + codeToken = mTokenizer->nextToken(WHITESPACE); + } + char* end; + int32_t code = int32_t(strtol(codeToken.string(), &end, 0)); + if (*end) { + ALOGE("%s: Expected led %s number, got '%s'.", mTokenizer->getLocation().string(), + mapUsage ? "usage" : "scan code", codeToken.string()); + return BAD_VALUE; + } + + KeyedVector<int32_t, Led>& map = mapUsage ? mMap->mLedsByUsageCode : mMap->mLedsByScanCode; + if (map.indexOfKey(code) >= 0) { + ALOGE("%s: Duplicate entry for led %s '%s'.", mTokenizer->getLocation().string(), + mapUsage ? "usage" : "scan code", codeToken.string()); + return BAD_VALUE; + } + + mTokenizer->skipDelimiters(WHITESPACE); + String8 ledCodeToken = mTokenizer->nextToken(WHITESPACE); + int32_t ledCode = getLedByLabel(ledCodeToken.string()); + if (ledCode < 0) { + ALOGE("%s: Expected LED code label, got '%s'.", mTokenizer->getLocation().string(), + ledCodeToken.string()); + return BAD_VALUE; + } + +#if DEBUG_PARSER + ALOGD("Parsed led %s: code=%d, ledCode=%d.", + mapUsage ? "usage" : "scan code", code, ledCode); +#endif + + Led led; + led.ledCode = ledCode; + map.add(code, led); + return NO_ERROR; +} +}; |