Move input library code from frameworks/base.
Change-Id: I4983db61b53e28479fc90d9211fafff68f7f49a6
diff --git a/libs/input/KeyLayoutMap.cpp b/libs/input/KeyLayoutMap.cpp
new file mode 100644
index 0000000..2f5494b
--- /dev/null
+++ b/libs/input/KeyLayoutMap.cpp
@@ -0,0 +1,367 @@
+/*
+ * 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 <stdlib.h>
+
+#include <android/keycodes.h>
+#include <input/Keyboard.h>
+#include <input/KeyLayoutMap.h>
+#include <utils/Log.h>
+#include <utils/Errors.h>
+#include <utils/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;
+}
+
+
+// --- 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 {
+ 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;
+}
+
+};