1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gonk/libui/InputDevice.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,184 @@
1.4 +/*
1.5 + * Copyright (C) 2012 The Android Open Source Project
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +#define LOG_TAG "InputDevice"
1.21 +
1.22 +#include <stdlib.h>
1.23 +#include <unistd.h>
1.24 +#include <ctype.h>
1.25 +
1.26 +#include "InputDevice.h"
1.27 +
1.28 +namespace android {
1.29 +
1.30 +static const char* CONFIGURATION_FILE_DIR[] = {
1.31 + "idc/",
1.32 + "keylayout/",
1.33 + "keychars/",
1.34 +};
1.35 +
1.36 +static const char* CONFIGURATION_FILE_EXTENSION[] = {
1.37 + ".idc",
1.38 + ".kl",
1.39 + ".kcm",
1.40 +};
1.41 +
1.42 +static bool isValidNameChar(char ch) {
1.43 + return isascii(ch) && (isdigit(ch) || isalpha(ch) || ch == '-' || ch == '_');
1.44 +}
1.45 +
1.46 +static void appendInputDeviceConfigurationFileRelativePath(String8& path,
1.47 + const String8& name, InputDeviceConfigurationFileType type) {
1.48 + path.append(CONFIGURATION_FILE_DIR[type]);
1.49 + for (size_t i = 0; i < name.length(); i++) {
1.50 + char ch = name[i];
1.51 + if (!isValidNameChar(ch)) {
1.52 + ch = '_';
1.53 + }
1.54 + path.append(&ch, 1);
1.55 + }
1.56 + path.append(CONFIGURATION_FILE_EXTENSION[type]);
1.57 +}
1.58 +
1.59 +String8 getInputDeviceConfigurationFilePathByDeviceIdentifier(
1.60 + const InputDeviceIdentifier& deviceIdentifier,
1.61 + InputDeviceConfigurationFileType type) {
1.62 + if (deviceIdentifier.vendor !=0 && deviceIdentifier.product != 0) {
1.63 + if (deviceIdentifier.version != 0) {
1.64 + // Try vendor product version.
1.65 + String8 versionPath(getInputDeviceConfigurationFilePathByName(
1.66 + String8::format("Vendor_%04x_Product_%04x_Version_%04x",
1.67 + deviceIdentifier.vendor, deviceIdentifier.product,
1.68 + deviceIdentifier.version),
1.69 + type));
1.70 + if (!versionPath.isEmpty()) {
1.71 + return versionPath;
1.72 + }
1.73 + }
1.74 +
1.75 + // Try vendor product.
1.76 + String8 productPath(getInputDeviceConfigurationFilePathByName(
1.77 + String8::format("Vendor_%04x_Product_%04x",
1.78 + deviceIdentifier.vendor, deviceIdentifier.product),
1.79 + type));
1.80 + if (!productPath.isEmpty()) {
1.81 + return productPath;
1.82 + }
1.83 + }
1.84 +
1.85 + // Try device name.
1.86 + return getInputDeviceConfigurationFilePathByName(deviceIdentifier.name, type);
1.87 +}
1.88 +
1.89 +String8 getInputDeviceConfigurationFilePathByName(
1.90 + const String8& name, InputDeviceConfigurationFileType type) {
1.91 + // Search system repository.
1.92 + String8 path;
1.93 + path.setTo(getenv("ANDROID_ROOT"));
1.94 + path.append("/usr/");
1.95 + appendInputDeviceConfigurationFileRelativePath(path, name, type);
1.96 +#if DEBUG_PROBE
1.97 + ALOGD("Probing for system provided input device configuration file: path='%s'", path.string());
1.98 +#endif
1.99 + if (!access(path.string(), R_OK)) {
1.100 +#if DEBUG_PROBE
1.101 + ALOGD("Found");
1.102 +#endif
1.103 + return path;
1.104 + }
1.105 +
1.106 + // Search user repository.
1.107 + // TODO Should only look here if not in safe mode.
1.108 + path.setTo(getenv("ANDROID_DATA"));
1.109 + path.append("/system/devices/");
1.110 + appendInputDeviceConfigurationFileRelativePath(path, name, type);
1.111 +#if DEBUG_PROBE
1.112 + ALOGD("Probing for system user input device configuration file: path='%s'", path.string());
1.113 +#endif
1.114 + if (!access(path.string(), R_OK)) {
1.115 +#if DEBUG_PROBE
1.116 + ALOGD("Found");
1.117 +#endif
1.118 + return path;
1.119 + }
1.120 +
1.121 + // Not found.
1.122 +#if DEBUG_PROBE
1.123 + ALOGD("Probe failed to find input device configuration file: name='%s', type=%d",
1.124 + name.string(), type);
1.125 +#endif
1.126 + return String8();
1.127 +}
1.128 +
1.129 +
1.130 +// --- InputDeviceInfo ---
1.131 +
1.132 +InputDeviceInfo::InputDeviceInfo() {
1.133 + initialize(-1, -1, InputDeviceIdentifier(), String8(), false);
1.134 +}
1.135 +
1.136 +InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
1.137 + mId(other.mId), mGeneration(other.mGeneration), mIdentifier(other.mIdentifier),
1.138 + mAlias(other.mAlias), mIsExternal(other.mIsExternal), mSources(other.mSources),
1.139 + mKeyboardType(other.mKeyboardType),
1.140 + mKeyCharacterMap(other.mKeyCharacterMap),
1.141 + mHasVibrator(other.mHasVibrator),
1.142 + mMotionRanges(other.mMotionRanges) {
1.143 +}
1.144 +
1.145 +InputDeviceInfo::~InputDeviceInfo() {
1.146 +}
1.147 +
1.148 +void InputDeviceInfo::initialize(int32_t id, int32_t generation,
1.149 + const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal) {
1.150 + mId = id;
1.151 + mGeneration = generation;
1.152 + mIdentifier = identifier;
1.153 + mAlias = alias;
1.154 + mIsExternal = isExternal;
1.155 + mSources = 0;
1.156 + mKeyboardType = AINPUT_KEYBOARD_TYPE_NONE;
1.157 + mHasVibrator = false;
1.158 + mMotionRanges.clear();
1.159 +}
1.160 +
1.161 +const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(
1.162 + int32_t axis, uint32_t source) const {
1.163 + size_t numRanges = mMotionRanges.size();
1.164 + for (size_t i = 0; i < numRanges; i++) {
1.165 + const MotionRange& range = mMotionRanges.itemAt(i);
1.166 + if (range.axis == axis && range.source == source) {
1.167 + return ⦥
1.168 + }
1.169 + }
1.170 + return NULL;
1.171 +}
1.172 +
1.173 +void InputDeviceInfo::addSource(uint32_t source) {
1.174 + mSources |= source;
1.175 +}
1.176 +
1.177 +void InputDeviceInfo::addMotionRange(int32_t axis, uint32_t source, float min, float max,
1.178 + float flat, float fuzz, float resolution) {
1.179 + MotionRange range = { axis, source, min, max, flat, fuzz, resolution };
1.180 + mMotionRanges.add(range);
1.181 +}
1.182 +
1.183 +void InputDeviceInfo::addMotionRange(const MotionRange& range) {
1.184 + mMotionRanges.add(range);
1.185 +}
1.186 +
1.187 +} // namespace android
