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widget/gonk/libui/KeyLayoutMap.cpp@fc2d59ddac77 (annotated)

widget/gonk/libui/KeyLayoutMap.cpp

Wed, 31 Dec 2014 07:22:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:22:50 +0100
branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
permissions
-rw-r--r--

Correct previous dual key logic pending first delivery installment.

michael@0 1 /*
michael@0 2 * Copyright (C) 2008 The Android Open Source Project
michael@0 3 *
michael@0 4 * Licensed under the Apache License, Version 2.0 (the "License");
michael@0 5 * you may not use this file except in compliance with the License.
michael@0 6 * You may obtain a copy of the License at
michael@0 7 *
michael@0 8 * http://www.apache.org/licenses/LICENSE-2.0
michael@0 9 *
michael@0 10 * Unless required by applicable law or agreed to in writing, software
michael@0 11 * distributed under the License is distributed on an "AS IS" BASIS,
michael@0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0 13 * See the License for the specific language governing permissions and
michael@0 14 * limitations under the License.
michael@0 15 */
michael@0 16
michael@0 17 #define LOG_TAG "KeyLayoutMap"
michael@0 18 #include "cutils_log.h"
michael@0 19
michael@0 20 #include <stdlib.h>
michael@0 21 #include "android_keycodes.h"
michael@0 22 #include "Keyboard.h"
michael@0 23 #include "KeyLayoutMap.h"
michael@0 24 #include <utils/Errors.h>
michael@0 25 #include "Tokenizer.h"
michael@0 26 #include <utils/Timers.h>
michael@0 27
michael@0 28 // Enables debug output for the parser.
michael@0 29 #define DEBUG_PARSER 0
michael@0 30
michael@0 31 // Enables debug output for parser performance.
michael@0 32 #define DEBUG_PARSER_PERFORMANCE 0
michael@0 33
michael@0 34 // Enables debug output for mapping.
michael@0 35 #define DEBUG_MAPPING 0
michael@0 36
michael@0 37
michael@0 38 namespace android {
michael@0 39
michael@0 40 static const char* WHITESPACE = " \t\r";
michael@0 41
michael@0 42 // --- KeyLayoutMap ---
michael@0 43
michael@0 44 KeyLayoutMap::KeyLayoutMap() {
michael@0 45 }
michael@0 46
michael@0 47 KeyLayoutMap::~KeyLayoutMap() {
michael@0 48 }
michael@0 49
michael@0 50 status_t KeyLayoutMap::load(const String8& filename, sp<KeyLayoutMap>* outMap) {
michael@0 51 outMap->clear();
michael@0 52
michael@0 53 Tokenizer* tokenizer;
michael@0 54 status_t status = Tokenizer::open(filename, &tokenizer);
michael@0 55 if (status) {
michael@0 56 ALOGE("Error %d opening key layout map file %s.", status, filename.string());
michael@0 57 } else {
michael@0 58 sp<KeyLayoutMap> map = new KeyLayoutMap();
michael@0 59 if (!map.get()) {
michael@0 60 ALOGE("Error allocating key layout map.");
michael@0 61 status = NO_MEMORY;
michael@0 62 } else {
michael@0 63 #if DEBUG_PARSER_PERFORMANCE
michael@0 64 nsecs_t startTime = systemTime(SYSTEM_TIME_MONOTONIC);
michael@0 65 #endif
michael@0 66 Parser parser(map.get(), tokenizer);
michael@0 67 status = parser.parse();
michael@0 68 #if DEBUG_PARSER_PERFORMANCE
michael@0 69 nsecs_t elapsedTime = systemTime(SYSTEM_TIME_MONOTONIC) - startTime;
michael@0 70 ALOGD("Parsed key layout map file '%s' %d lines in %0.3fms.",
michael@0 71 tokenizer->getFilename().string(), tokenizer->getLineNumber(),
michael@0 72 elapsedTime / 1000000.0);
michael@0 73 #endif
michael@0 74 if (!status) {
michael@0 75 *outMap = map;
michael@0 76 }
michael@0 77 }
michael@0 78 delete tokenizer;
michael@0 79 }
michael@0 80 return status;
michael@0 81 }
michael@0 82
michael@0 83 status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode,
michael@0 84 int32_t* outKeyCode, uint32_t* outFlags) const {
michael@0 85 const Key* key = getKey(scanCode, usageCode);
michael@0 86 if (!key) {
michael@0 87 #if DEBUG_MAPPING
michael@0 88 ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode, usageCode);
michael@0 89 #endif
michael@0 90 *outKeyCode = AKEYCODE_UNKNOWN;
michael@0 91 *outFlags = 0;
michael@0 92 return NAME_NOT_FOUND;
michael@0 93 }
michael@0 94
michael@0 95 *outKeyCode = key->keyCode;
michael@0 96 *outFlags = key->flags;
michael@0 97
michael@0 98 #if DEBUG_MAPPING
michael@0 99 ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d, outFlags=0x%08x.",
michael@0 100 scanCode, usageCode, *outKeyCode, *outFlags);
michael@0 101 #endif
michael@0 102 return NO_ERROR;
michael@0 103 }
michael@0 104
michael@0 105 const KeyLayoutMap::Key* KeyLayoutMap::getKey(int32_t scanCode, int32_t usageCode) const {
michael@0 106 if (usageCode) {
michael@0 107 ssize_t index = mKeysByUsageCode.indexOfKey(usageCode);
michael@0 108 if (index >= 0) {
michael@0 109 return &mKeysByUsageCode.valueAt(index);
michael@0 110 }
michael@0 111 }
michael@0 112 if (scanCode) {
michael@0 113 ssize_t index = mKeysByScanCode.indexOfKey(scanCode);
michael@0 114 if (index >= 0) {
michael@0 115 return &mKeysByScanCode.valueAt(index);
michael@0 116 }
michael@0 117 }
michael@0 118 return NULL;
michael@0 119 }
michael@0 120
michael@0 121 status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const {
michael@0 122 const size_t N = mKeysByScanCode.size();
michael@0 123 for (size_t i=0; i<N; i++) {
michael@0 124 if (mKeysByScanCode.valueAt(i).keyCode == keyCode) {
michael@0 125 outScanCodes->add(mKeysByScanCode.keyAt(i));
michael@0 126 }
michael@0 127 }
michael@0 128 return NO_ERROR;
michael@0 129 }
michael@0 130
michael@0 131 status_t KeyLayoutMap::mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const {
michael@0 132 ssize_t index = mAxes.indexOfKey(scanCode);
michael@0 133 if (index < 0) {
michael@0 134 #if DEBUG_MAPPING
michael@0 135 ALOGD("mapAxis: scanCode=%d ~ Failed.", scanCode);
michael@0 136 #endif
michael@0 137 return NAME_NOT_FOUND;
michael@0 138 }
michael@0 139
michael@0 140 *outAxisInfo = mAxes.valueAt(index);
michael@0 141
michael@0 142 #if DEBUG_MAPPING
michael@0 143 ALOGD("mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, "
michael@0 144 "splitValue=%d, flatOverride=%d.",
michael@0 145 scanCode,
michael@0 146 outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis,
michael@0 147 outAxisInfo->splitValue, outAxisInfo->flatOverride);
michael@0 148 #endif
michael@0 149 return NO_ERROR;
michael@0 150 }
michael@0 151
michael@0 152
michael@0 153 // --- KeyLayoutMap::Parser ---
michael@0 154
michael@0 155 KeyLayoutMap::Parser::Parser(KeyLayoutMap* map, Tokenizer* tokenizer) :
michael@0 156 mMap(map), mTokenizer(tokenizer) {
michael@0 157 }
michael@0 158
michael@0 159 KeyLayoutMap::Parser::~Parser() {
michael@0 160 }
michael@0 161
michael@0 162 status_t KeyLayoutMap::Parser::parse() {
michael@0 163 while (!mTokenizer->isEof()) {
michael@0 164 #if DEBUG_PARSER
michael@0 165 ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(),
michael@0 166 mTokenizer->peekRemainderOfLine().string());
michael@0 167 #endif
michael@0 168
michael@0 169 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 170
michael@0 171 if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
michael@0 172 String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
michael@0 173 if (keywordToken == "key") {
michael@0 174 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 175 status_t status = parseKey();
michael@0 176 if (status) return status;
michael@0 177 } else if (keywordToken == "axis") {
michael@0 178 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 179 status_t status = parseAxis();
michael@0 180 if (status) return status;
michael@0 181 } else {
michael@0 182 ALOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(),
michael@0 183 keywordToken.string());
michael@0 184 return BAD_VALUE;
michael@0 185 }
michael@0 186
michael@0 187 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 188 if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
michael@0 189 ALOGE("%s: Expected end of line or trailing comment, got '%s'.",
michael@0 190 mTokenizer->getLocation().string(),
michael@0 191 mTokenizer->peekRemainderOfLine().string());
michael@0 192 return BAD_VALUE;
michael@0 193 }
michael@0 194 }
michael@0 195
michael@0 196 mTokenizer->nextLine();
michael@0 197 }
michael@0 198 return NO_ERROR;
michael@0 199 }
michael@0 200
michael@0 201 status_t KeyLayoutMap::Parser::parseKey() {
michael@0 202 String8 codeToken = mTokenizer->nextToken(WHITESPACE);
michael@0 203 bool mapUsage = false;
michael@0 204 if (codeToken == "usage") {
michael@0 205 mapUsage = true;
michael@0 206 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 207 codeToken = mTokenizer->nextToken(WHITESPACE);
michael@0 208 }
michael@0 209
michael@0 210 char* end;
michael@0 211 int32_t code = int32_t(strtol(codeToken.string(), &end, 0));
michael@0 212 if (*end) {
michael@0 213 ALOGE("%s: Expected key %s number, got '%s'.", mTokenizer->getLocation().string(),
michael@0 214 mapUsage ? "usage" : "scan code", codeToken.string());
michael@0 215 return BAD_VALUE;
michael@0 216 }
michael@0 217 KeyedVector<int32_t, Key>& map =
michael@0 218 mapUsage ? mMap->mKeysByUsageCode : mMap->mKeysByScanCode;
michael@0 219 if (map.indexOfKey(code) >= 0) {
michael@0 220 ALOGE("%s: Duplicate entry for key %s '%s'.", mTokenizer->getLocation().string(),
michael@0 221 mapUsage ? "usage" : "scan code", codeToken.string());
michael@0 222 return BAD_VALUE;
michael@0 223 }
michael@0 224
michael@0 225 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 226 String8 keyCodeToken = mTokenizer->nextToken(WHITESPACE);
michael@0 227 int32_t keyCode = getKeyCodeByLabel(keyCodeToken.string());
michael@0 228 if (!keyCode) {
michael@0 229 ALOGE("%s: Expected key code label, got '%s'.", mTokenizer->getLocation().string(),
michael@0 230 keyCodeToken.string());
michael@0 231 return BAD_VALUE;
michael@0 232 }
michael@0 233
michael@0 234 uint32_t flags = 0;
michael@0 235 for (;;) {
michael@0 236 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 237 if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') break;
michael@0 238
michael@0 239 String8 flagToken = mTokenizer->nextToken(WHITESPACE);
michael@0 240 uint32_t flag = getKeyFlagByLabel(flagToken.string());
michael@0 241 if (!flag) {
michael@0 242 ALOGE("%s: Expected key flag label, got '%s'.", mTokenizer->getLocation().string(),
michael@0 243 flagToken.string());
michael@0 244 return BAD_VALUE;
michael@0 245 }
michael@0 246 if (flags & flag) {
michael@0 247 ALOGE("%s: Duplicate key flag '%s'.", mTokenizer->getLocation().string(),
michael@0 248 flagToken.string());
michael@0 249 return BAD_VALUE;
michael@0 250 }
michael@0 251 flags |= flag;
michael@0 252 }
michael@0 253
michael@0 254 #if DEBUG_PARSER
michael@0 255 ALOGD("Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.",
michael@0 256 mapUsage ? "usage" : "scan code", code, keyCode, flags);
michael@0 257 #endif
michael@0 258 Key key;
michael@0 259 key.keyCode = keyCode;
michael@0 260 key.flags = flags;
michael@0 261 map.add(code, key);
michael@0 262 return NO_ERROR;
michael@0 263 }
michael@0 264
michael@0 265 status_t KeyLayoutMap::Parser::parseAxis() {
michael@0 266 String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE);
michael@0 267 char* end;
michael@0 268 int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
michael@0 269 if (*end) {
michael@0 270 ALOGE("%s: Expected axis scan code number, got '%s'.", mTokenizer->getLocation().string(),
michael@0 271 scanCodeToken.string());
michael@0 272 return BAD_VALUE;
michael@0 273 }
michael@0 274 if (mMap->mAxes.indexOfKey(scanCode) >= 0) {
michael@0 275 ALOGE("%s: Duplicate entry for axis scan code '%s'.", mTokenizer->getLocation().string(),
michael@0 276 scanCodeToken.string());
michael@0 277 return BAD_VALUE;
michael@0 278 }
michael@0 279
michael@0 280 AxisInfo axisInfo;
michael@0 281
michael@0 282 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 283 String8 token = mTokenizer->nextToken(WHITESPACE);
michael@0 284 if (token == "invert") {
michael@0 285 axisInfo.mode = AxisInfo::MODE_INVERT;
michael@0 286
michael@0 287 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 288 String8 axisToken = mTokenizer->nextToken(WHITESPACE);
michael@0 289 axisInfo.axis = getAxisByLabel(axisToken.string());
michael@0 290 if (axisInfo.axis < 0) {
michael@0 291 ALOGE("%s: Expected inverted axis label, got '%s'.",
michael@0 292 mTokenizer->getLocation().string(), axisToken.string());
michael@0 293 return BAD_VALUE;
michael@0 294 }
michael@0 295 } else if (token == "split") {
michael@0 296 axisInfo.mode = AxisInfo::MODE_SPLIT;
michael@0 297
michael@0 298 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 299 String8 splitToken = mTokenizer->nextToken(WHITESPACE);
michael@0 300 axisInfo.splitValue = int32_t(strtol(splitToken.string(), &end, 0));
michael@0 301 if (*end) {
michael@0 302 ALOGE("%s: Expected split value, got '%s'.",
michael@0 303 mTokenizer->getLocation().string(), splitToken.string());
michael@0 304 return BAD_VALUE;
michael@0 305 }
michael@0 306
michael@0 307 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 308 String8 lowAxisToken = mTokenizer->nextToken(WHITESPACE);
michael@0 309 axisInfo.axis = getAxisByLabel(lowAxisToken.string());
michael@0 310 if (axisInfo.axis < 0) {
michael@0 311 ALOGE("%s: Expected low axis label, got '%s'.",
michael@0 312 mTokenizer->getLocation().string(), lowAxisToken.string());
michael@0 313 return BAD_VALUE;
michael@0 314 }
michael@0 315
michael@0 316 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 317 String8 highAxisToken = mTokenizer->nextToken(WHITESPACE);
michael@0 318 axisInfo.highAxis = getAxisByLabel(highAxisToken.string());
michael@0 319 if (axisInfo.highAxis < 0) {
michael@0 320 ALOGE("%s: Expected high axis label, got '%s'.",
michael@0 321 mTokenizer->getLocation().string(), highAxisToken.string());
michael@0 322 return BAD_VALUE;
michael@0 323 }
michael@0 324 } else {
michael@0 325 axisInfo.axis = getAxisByLabel(token.string());
michael@0 326 if (axisInfo.axis < 0) {
michael@0 327 ALOGE("%s: Expected axis label, 'split' or 'invert', got '%s'.",
michael@0 328 mTokenizer->getLocation().string(), token.string());
michael@0 329 return BAD_VALUE;
michael@0 330 }
michael@0 331 }
michael@0 332
michael@0 333 for (;;) {
michael@0 334 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 335 if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') {
michael@0 336 break;
michael@0 337 }
michael@0 338 String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
michael@0 339 if (keywordToken == "flat") {
michael@0 340 mTokenizer->skipDelimiters(WHITESPACE);
michael@0 341 String8 flatToken = mTokenizer->nextToken(WHITESPACE);
michael@0 342 axisInfo.flatOverride = int32_t(strtol(flatToken.string(), &end, 0));
michael@0 343 if (*end) {
michael@0 344 ALOGE("%s: Expected flat value, got '%s'.",
michael@0 345 mTokenizer->getLocation().string(), flatToken.string());
michael@0 346 return BAD_VALUE;
michael@0 347 }
michael@0 348 } else {
michael@0 349 ALOGE("%s: Expected keyword 'flat', got '%s'.",
michael@0 350 mTokenizer->getLocation().string(), keywordToken.string());
michael@0 351 return BAD_VALUE;
michael@0 352 }
michael@0 353 }
michael@0 354
michael@0 355 #if DEBUG_PARSER
michael@0 356 ALOGD("Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, "
michael@0 357 "splitValue=%d, flatOverride=%d.",
michael@0 358 scanCode,
michael@0 359 axisInfo.mode, axisInfo.axis, axisInfo.highAxis,
michael@0 360 axisInfo.splitValue, axisInfo.flatOverride);
michael@0 361 #endif
michael@0 362 mMap->mAxes.add(scanCode, axisInfo);
michael@0 363 return NO_ERROR;
michael@0 364 }
michael@0 365
michael@0 366 };

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