245 lines
8.6 KiB
C
245 lines
8.6 KiB
C
#include "control_msg.h"
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#include <assert.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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#include "util/buffer_util.h"
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#include "util/log.h"
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#include "util/str.h"
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/**
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* Map an enum value to a string based on an array, without crashing on an
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* out-of-bounds index.
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*/
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#define ENUM_TO_LABEL(labels, value) \
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((size_t) (value) < ARRAY_LEN(labels) ? labels[value] : "???")
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#define KEYEVENT_ACTION_LABEL(value) \
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ENUM_TO_LABEL(android_keyevent_action_labels, value)
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#define MOTIONEVENT_ACTION_LABEL(value) \
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ENUM_TO_LABEL(android_motionevent_action_labels, value)
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#define SCREEN_POWER_MODE_LABEL(value) \
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ENUM_TO_LABEL(screen_power_mode_labels, value)
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static const char *const android_keyevent_action_labels[] = {
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"down",
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"up",
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"multi",
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};
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static const char *const android_motionevent_action_labels[] = {
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"down",
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"up",
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"move",
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"cancel",
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"outside",
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"ponter-down",
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"pointer-up",
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"hover-move",
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"scroll",
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"hover-enter"
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"hover-exit",
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"btn-press",
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"btn-release",
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};
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static const char *const screen_power_mode_labels[] = {
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"off",
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"doze",
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"normal",
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"doze-suspend",
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"suspend",
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};
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static void
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write_position(uint8_t *buf, const struct sc_position *position) {
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buffer_write32be(&buf[0], position->point.x);
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buffer_write32be(&buf[4], position->point.y);
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buffer_write16be(&buf[8], position->screen_size.width);
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buffer_write16be(&buf[10], position->screen_size.height);
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}
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// write length (2 bytes) + string (non nul-terminated)
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static size_t
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write_string(const char *utf8, size_t max_len, unsigned char *buf) {
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size_t len = sc_str_utf8_truncation_index(utf8, max_len);
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buffer_write32be(buf, len);
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memcpy(&buf[4], utf8, len);
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return 4 + len;
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}
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static uint16_t
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to_fixed_point_16(float f) {
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assert(f >= 0.0f && f <= 1.0f);
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uint32_t u = f * 0x1p16f; // 2^16
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if (u >= 0xffff) {
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u = 0xffff;
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}
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return (uint16_t) u;
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}
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size_t
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control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
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buf[0] = msg->type;
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switch (msg->type) {
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case CONTROL_MSG_TYPE_INJECT_KEYCODE:
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buf[1] = msg->inject_keycode.action;
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buffer_write32be(&buf[2], msg->inject_keycode.keycode);
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buffer_write32be(&buf[6], msg->inject_keycode.repeat);
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buffer_write32be(&buf[10], msg->inject_keycode.metastate);
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return 14;
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case CONTROL_MSG_TYPE_INJECT_TEXT: {
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size_t len =
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write_string(msg->inject_text.text,
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CONTROL_MSG_INJECT_TEXT_MAX_LENGTH, &buf[1]);
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return 1 + len;
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}
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case CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT:
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buf[1] = msg->inject_touch_event.action;
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buffer_write64be(&buf[2], msg->inject_touch_event.pointer_id);
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write_position(&buf[10], &msg->inject_touch_event.position);
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uint16_t pressure =
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to_fixed_point_16(msg->inject_touch_event.pressure);
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buffer_write16be(&buf[22], pressure);
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buffer_write32be(&buf[24], msg->inject_touch_event.buttons);
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return 28;
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case CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
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write_position(&buf[1], &msg->inject_scroll_event.position);
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buffer_write32be(&buf[13],
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(uint32_t) msg->inject_scroll_event.hscroll);
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buffer_write32be(&buf[17],
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(uint32_t) msg->inject_scroll_event.vscroll);
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return 21;
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case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
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buf[1] = msg->inject_keycode.action;
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return 2;
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case CONTROL_MSG_TYPE_SET_CLIPBOARD: {
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buf[1] = !!msg->set_clipboard.paste;
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size_t len = write_string(msg->set_clipboard.text,
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CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH,
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&buf[2]);
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return 2 + len;
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}
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case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
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buf[1] = msg->set_screen_power_mode.mode;
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return 2;
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case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
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case CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL:
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case CONTROL_MSG_TYPE_COLLAPSE_PANELS:
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case CONTROL_MSG_TYPE_GET_CLIPBOARD:
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case CONTROL_MSG_TYPE_ROTATE_DEVICE:
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// no additional data
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return 1;
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default:
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LOGW("Unknown message type: %u", (unsigned) msg->type);
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return 0;
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}
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}
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void
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control_msg_log(const struct control_msg *msg) {
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#define LOG_CMSG(fmt, ...) LOGV("input: " fmt, ## __VA_ARGS__)
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switch (msg->type) {
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case CONTROL_MSG_TYPE_INJECT_KEYCODE:
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LOG_CMSG("key %-4s code=%d repeat=%" PRIu32 " meta=%06lx",
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KEYEVENT_ACTION_LABEL(msg->inject_keycode.action),
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(int) msg->inject_keycode.keycode,
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msg->inject_keycode.repeat,
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(long) msg->inject_keycode.metastate);
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break;
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case CONTROL_MSG_TYPE_INJECT_TEXT:
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LOG_CMSG("text \"%s\"", msg->inject_text.text);
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break;
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case CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT: {
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int action = msg->inject_touch_event.action
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& AMOTION_EVENT_ACTION_MASK;
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uint64_t id = msg->inject_touch_event.pointer_id;
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if (id == POINTER_ID_MOUSE || id == POINTER_ID_VIRTUAL_FINGER) {
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// string pointer id
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LOG_CMSG("touch [id=%s] %-4s position=%" PRIi32 ",%" PRIi32
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" pressure=%g buttons=%06lx",
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id == POINTER_ID_MOUSE ? "mouse" : "vfinger",
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MOTIONEVENT_ACTION_LABEL(action),
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msg->inject_touch_event.position.point.x,
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msg->inject_touch_event.position.point.y,
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msg->inject_touch_event.pressure,
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(long) msg->inject_touch_event.buttons);
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} else {
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// numeric pointer id
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#ifndef __WIN32
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# define PRIu64_ PRIu64
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#else
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# define PRIu64_ "I64u" // Windows...
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#endif
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LOG_CMSG("touch [id=%" PRIu64_ "] %-4s position=%" PRIi32 ",%"
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PRIi32 " pressure=%g buttons=%06lx",
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id,
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MOTIONEVENT_ACTION_LABEL(action),
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msg->inject_touch_event.position.point.x,
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msg->inject_touch_event.position.point.y,
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msg->inject_touch_event.pressure,
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(long) msg->inject_touch_event.buttons);
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}
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break;
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}
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case CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
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LOG_CMSG("scroll position=%" PRIi32 ",%" PRIi32 " hscroll=%" PRIi32
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" vscroll=%" PRIi32,
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msg->inject_scroll_event.position.point.x,
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msg->inject_scroll_event.position.point.y,
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msg->inject_scroll_event.hscroll,
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msg->inject_scroll_event.vscroll);
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break;
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case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
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LOG_CMSG("back-or-screen-on %s",
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KEYEVENT_ACTION_LABEL(msg->inject_keycode.action));
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break;
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case CONTROL_MSG_TYPE_SET_CLIPBOARD:
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LOG_CMSG("clipboard %s \"%s\"",
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msg->set_clipboard.paste ? "paste" : "copy",
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msg->set_clipboard.text);
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break;
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case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
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LOG_CMSG("power mode %s",
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SCREEN_POWER_MODE_LABEL(msg->set_screen_power_mode.mode));
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break;
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case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
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LOG_CMSG("expand notification panel");
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break;
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case CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL:
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LOG_CMSG("expand settings panel");
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break;
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case CONTROL_MSG_TYPE_COLLAPSE_PANELS:
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LOG_CMSG("collapse panels");
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break;
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case CONTROL_MSG_TYPE_GET_CLIPBOARD:
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LOG_CMSG("get clipboard");
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break;
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case CONTROL_MSG_TYPE_ROTATE_DEVICE:
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LOG_CMSG("rotate device");
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break;
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default:
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LOG_CMSG("unknown type: %u", (unsigned) msg->type);
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break;
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}
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}
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void
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control_msg_destroy(struct control_msg *msg) {
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switch (msg->type) {
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case CONTROL_MSG_TYPE_INJECT_TEXT:
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free(msg->inject_text.text);
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break;
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case CONTROL_MSG_TYPE_SET_CLIPBOARD:
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free(msg->set_clipboard.text);
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break;
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default:
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// do nothing
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break;
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}
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}
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