330 lines
8.9 KiB
C++
330 lines
8.9 KiB
C++
//
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// Copyright 2010 The Android Open Source Project
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//
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// Provides a pipe-based transport for native events in the NDK.
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//
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#define LOG_TAG "Input"
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//#define LOG_NDEBUG 0
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#define DEBUG_PROBE 0
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#include <stdlib.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <ui/Input.h>
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namespace android {
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static const char* CONFIGURATION_FILE_DIR[] = {
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"idc/",
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"keylayout/",
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"keychars/",
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};
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static const char* CONFIGURATION_FILE_EXTENSION[] = {
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".idc",
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".kl",
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".kcm",
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};
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static bool isValidNameChar(char ch) {
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return isascii(ch) && (isdigit(ch) || isalpha(ch) || ch == '-' || ch == '_');
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}
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static void appendInputDeviceConfigurationFileRelativePath(String8& path,
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const String8& name, InputDeviceConfigurationFileType type) {
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path.append(CONFIGURATION_FILE_DIR[type]);
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for (size_t i = 0; i < name.length(); i++) {
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char ch = name[i];
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if (!isValidNameChar(ch)) {
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ch = '_';
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}
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path.append(&ch, 1);
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}
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path.append(CONFIGURATION_FILE_EXTENSION[type]);
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}
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String8 getInputDeviceConfigurationFilePathByDeviceIdentifier(
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const InputDeviceIdentifier& deviceIdentifier,
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InputDeviceConfigurationFileType type) {
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if (deviceIdentifier.vendor !=0 && deviceIdentifier.product != 0) {
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if (deviceIdentifier.version != 0) {
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// Try vendor product version.
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String8 versionPath(getInputDeviceConfigurationFilePathByName(
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String8::format("Vendor_%04x_Product_%04x_Version_%04x",
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deviceIdentifier.vendor, deviceIdentifier.product,
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deviceIdentifier.version),
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type));
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if (!versionPath.isEmpty()) {
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return versionPath;
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}
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}
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// Try vendor product.
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String8 productPath(getInputDeviceConfigurationFilePathByName(
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String8::format("Vendor_%04x_Product_%04x",
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deviceIdentifier.vendor, deviceIdentifier.product),
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type));
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if (!productPath.isEmpty()) {
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return productPath;
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}
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}
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// Try device name.
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return getInputDeviceConfigurationFilePathByName(deviceIdentifier.name, type);
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}
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String8 getInputDeviceConfigurationFilePathByName(
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const String8& name, InputDeviceConfigurationFileType type) {
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// Search system repository.
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String8 path;
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path.setTo(getenv("ANDROID_ROOT"));
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path.append("/usr/");
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appendInputDeviceConfigurationFileRelativePath(path, name, type);
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#if DEBUG_PROBE
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LOGD("Probing for system provided input device configuration file: path='%s'", path.string());
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#endif
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if (!access(path.string(), R_OK)) {
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#if DEBUG_PROBE
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LOGD("Found");
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#endif
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return path;
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}
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// Search user repository.
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// TODO Should only look here if not in safe mode.
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path.setTo(getenv("ANDROID_DATA"));
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path.append("/system/devices/");
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appendInputDeviceConfigurationFileRelativePath(path, name, type);
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#if DEBUG_PROBE
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LOGD("Probing for system user input device configuration file: path='%s'", path.string());
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#endif
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if (!access(path.string(), R_OK)) {
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#if DEBUG_PROBE
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LOGD("Found");
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#endif
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return path;
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}
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// Not found.
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#if DEBUG_PROBE
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LOGD("Probe failed to find input device configuration file: name='%s', type=%d",
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name.string(), type);
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#endif
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return String8();
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}
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// --- InputEvent ---
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void InputEvent::initialize(int32_t deviceId, int32_t source) {
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mDeviceId = deviceId;
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mSource = source;
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}
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void InputEvent::initialize(const InputEvent& from) {
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mDeviceId = from.mDeviceId;
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mSource = from.mSource;
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}
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// --- KeyEvent ---
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bool KeyEvent::hasDefaultAction(int32_t keyCode) {
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switch (keyCode) {
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case AKEYCODE_HOME:
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case AKEYCODE_BACK:
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case AKEYCODE_CALL:
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case AKEYCODE_ENDCALL:
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case AKEYCODE_VOLUME_UP:
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case AKEYCODE_VOLUME_DOWN:
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case AKEYCODE_VOLUME_MUTE:
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case AKEYCODE_POWER:
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case AKEYCODE_CAMERA:
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case AKEYCODE_HEADSETHOOK:
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case AKEYCODE_MENU:
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case AKEYCODE_NOTIFICATION:
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case AKEYCODE_FOCUS:
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case AKEYCODE_SEARCH:
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case AKEYCODE_MEDIA_PLAY:
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case AKEYCODE_MEDIA_PAUSE:
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case AKEYCODE_MEDIA_PLAY_PAUSE:
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case AKEYCODE_MEDIA_STOP:
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case AKEYCODE_MEDIA_NEXT:
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case AKEYCODE_MEDIA_PREVIOUS:
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case AKEYCODE_MEDIA_REWIND:
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case AKEYCODE_MEDIA_RECORD:
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case AKEYCODE_MEDIA_FAST_FORWARD:
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case AKEYCODE_MUTE:
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return true;
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}
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return false;
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}
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bool KeyEvent::hasDefaultAction() const {
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return hasDefaultAction(getKeyCode());
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}
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bool KeyEvent::isSystemKey(int32_t keyCode) {
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switch (keyCode) {
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case AKEYCODE_MENU:
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case AKEYCODE_SOFT_RIGHT:
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case AKEYCODE_HOME:
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case AKEYCODE_BACK:
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case AKEYCODE_CALL:
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case AKEYCODE_ENDCALL:
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case AKEYCODE_VOLUME_UP:
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case AKEYCODE_VOLUME_DOWN:
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case AKEYCODE_VOLUME_MUTE:
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case AKEYCODE_MUTE:
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case AKEYCODE_POWER:
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case AKEYCODE_HEADSETHOOK:
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case AKEYCODE_MEDIA_PLAY:
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case AKEYCODE_MEDIA_PAUSE:
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case AKEYCODE_MEDIA_PLAY_PAUSE:
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case AKEYCODE_MEDIA_STOP:
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case AKEYCODE_MEDIA_NEXT:
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case AKEYCODE_MEDIA_PREVIOUS:
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case AKEYCODE_MEDIA_REWIND:
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case AKEYCODE_MEDIA_RECORD:
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case AKEYCODE_MEDIA_FAST_FORWARD:
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case AKEYCODE_CAMERA:
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case AKEYCODE_FOCUS:
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case AKEYCODE_SEARCH:
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return true;
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}
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return false;
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}
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bool KeyEvent::isSystemKey() const {
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return isSystemKey(getKeyCode());
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}
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void KeyEvent::initialize(
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int32_t deviceId,
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int32_t source,
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int32_t action,
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int32_t flags,
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int32_t keyCode,
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int32_t scanCode,
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int32_t metaState,
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int32_t repeatCount,
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nsecs_t downTime,
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nsecs_t eventTime) {
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InputEvent::initialize(deviceId, source);
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mAction = action;
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mFlags = flags;
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mKeyCode = keyCode;
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mScanCode = scanCode;
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mMetaState = metaState;
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mRepeatCount = repeatCount;
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mDownTime = downTime;
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mEventTime = eventTime;
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}
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void KeyEvent::initialize(const KeyEvent& from) {
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InputEvent::initialize(from);
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mAction = from.mAction;
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mFlags = from.mFlags;
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mKeyCode = from.mKeyCode;
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mScanCode = from.mScanCode;
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mMetaState = from.mMetaState;
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mRepeatCount = from.mRepeatCount;
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mDownTime = from.mDownTime;
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mEventTime = from.mEventTime;
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}
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// --- MotionEvent ---
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void MotionEvent::initialize(
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int32_t deviceId,
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int32_t source,
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int32_t action,
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int32_t flags,
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int32_t edgeFlags,
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int32_t metaState,
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float xOffset,
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float yOffset,
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float xPrecision,
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float yPrecision,
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nsecs_t downTime,
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nsecs_t eventTime,
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size_t pointerCount,
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const int32_t* pointerIds,
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const PointerCoords* pointerCoords) {
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InputEvent::initialize(deviceId, source);
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mAction = action;
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mFlags = flags;
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mEdgeFlags = edgeFlags;
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mMetaState = metaState;
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mXOffset = xOffset;
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mYOffset = yOffset;
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mXPrecision = xPrecision;
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mYPrecision = yPrecision;
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mDownTime = downTime;
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mPointerIds.clear();
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mPointerIds.appendArray(pointerIds, pointerCount);
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mSampleEventTimes.clear();
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mSamplePointerCoords.clear();
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addSample(eventTime, pointerCoords);
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}
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void MotionEvent::addSample(
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int64_t eventTime,
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const PointerCoords* pointerCoords) {
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mSampleEventTimes.push(eventTime);
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mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
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}
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void MotionEvent::offsetLocation(float xOffset, float yOffset) {
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mXOffset += xOffset;
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mYOffset += yOffset;
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}
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// --- InputDeviceInfo ---
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InputDeviceInfo::InputDeviceInfo() {
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initialize(-1, String8("uninitialized device info"));
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}
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InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
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mId(other.mId), mName(other.mName), mSources(other.mSources),
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mKeyboardType(other.mKeyboardType),
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mMotionRanges(other.mMotionRanges) {
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}
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InputDeviceInfo::~InputDeviceInfo() {
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}
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void InputDeviceInfo::initialize(int32_t id, const String8& name) {
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mId = id;
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mName = name;
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mSources = 0;
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mKeyboardType = AINPUT_KEYBOARD_TYPE_NONE;
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mMotionRanges.clear();
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}
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const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(int32_t rangeType) const {
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ssize_t index = mMotionRanges.indexOfKey(rangeType);
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return index >= 0 ? & mMotionRanges.valueAt(index) : NULL;
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}
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void InputDeviceInfo::addSource(uint32_t source) {
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mSources |= source;
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}
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void InputDeviceInfo::addMotionRange(int32_t rangeType, float min, float max,
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float flat, float fuzz) {
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MotionRange range = { min, max, flat, fuzz };
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addMotionRange(rangeType, range);
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}
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void InputDeviceInfo::addMotionRange(int32_t rangeType, const MotionRange& range) {
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mMotionRanges.add(rangeType, range);
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}
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} // namespace android
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