frameworks/base refactoring

create the new libandroidfw from parts of libui and libutils

Change-Id: I1584995616fff5d527a2aba63921b682a6194d58

1 files changed, 341 insertions, 0 deletions

diff --git a/libs/androidfw/KeyLayoutMap.cpp b/libs/androidfw/KeyLayoutMap.cpp
new file mode 100644
index 000000000000..15d81ee2ed74
--- /dev/null
+++ b/libs/androidfw/KeyLayoutMap.cpp
@@ -0,0 +1,341 @@
+/*
+ * 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 <androidfw/Keyboard.h>
+#include <androidfw/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, KeyLayoutMap** outMap) {
+    *outMap = NULL;
+
+    Tokenizer* tokenizer;
+    status_t status = Tokenizer::open(filename, &tokenizer);
+    if (status) {
+        ALOGE("Error %d opening key layout map file %s.", status, filename.string());
+    } else {
+        KeyLayoutMap* map = new KeyLayoutMap();
+        if (!map) {
+            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, 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) {
+                delete map;
+            } else {
+                *outMap = map;
+            }
+        }
+        delete tokenizer;
+    }
+    return status;
+}
+
+status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const {
+    ssize_t index = mKeys.indexOfKey(scanCode);
+    if (index < 0) {
+#if DEBUG_MAPPING
+        ALOGD("mapKey: scanCode=%d ~ Failed.", scanCode);
+#endif
+        *keyCode = AKEYCODE_UNKNOWN;
+        *flags = 0;
+        return NAME_NOT_FOUND;
+    }
+
+    const Key& k = mKeys.valueAt(index);
+    *keyCode = k.keyCode;
+    *flags = k.flags;
+
+#if DEBUG_MAPPING
+    ALOGD("mapKey: scanCode=%d ~ Result keyCode=%d, flags=0x%08x.", scanCode, *keyCode, *flags);
+#endif
+    return NO_ERROR;
+}
+
+status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const {
+    const size_t N = mKeys.size();
+    for (size_t i=0; i<N; i++) {
+        if (mKeys.valueAt(i).keyCode == keyCode) {
+            outScanCodes->add(mKeys.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()) {
+                ALOGE("%s: Expected end of line, got '%s'.",
+                        mTokenizer->getLocation().string(),
+                        mTokenizer->peekRemainderOfLine().string());
+                return BAD_VALUE;
+            }
+        }
+
+        mTokenizer->nextLine();
+    }
+    return NO_ERROR;
+}
+
+status_t KeyLayoutMap::Parser::parseKey() {
+    String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE);
+    char* end;
+    int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
+    if (*end) {
+        ALOGE("%s: Expected key scan code number, got '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.string());
+        return BAD_VALUE;
+    }
+    if (mMap->mKeys.indexOfKey(scanCode) >= 0) {
+        ALOGE("%s: Duplicate entry for key scan code '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.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()) 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: scanCode=%d, keyCode=%d, flags=0x%08x.", scanCode, keyCode, flags);
+#endif
+    Key key;
+    key.keyCode = keyCode;
+    key.flags = flags;
+    mMap->mKeys.add(scanCode, 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()) {
+            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;
+}
+
+};