633 lines
19 KiB
C
633 lines
19 KiB
C
#include "input_manager.h"
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#include <assert.h>
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#include <SDL2/SDL_keycode.h>
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#include "config.h"
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#include "event_converter.h"
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#include "util/lock.h"
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#include "util/log.h"
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static const int ACTION_DOWN = 1;
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static const int ACTION_UP = 1 << 1;
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#define SC_SDL_SHORTCUT_MODS_MASK (KMOD_CTRL | KMOD_ALT | KMOD_GUI)
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static inline uint16_t
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to_sdl_mod(unsigned mod) {
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uint16_t sdl_mod = 0;
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if (mod & SC_MOD_LCTRL) {
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sdl_mod |= KMOD_LCTRL;
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}
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if (mod & SC_MOD_RCTRL) {
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sdl_mod |= KMOD_RCTRL;
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}
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if (mod & SC_MOD_LALT) {
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sdl_mod |= KMOD_LALT;
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}
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if (mod & SC_MOD_RALT) {
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sdl_mod |= KMOD_RALT;
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}
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if (mod & SC_MOD_LSUPER) {
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sdl_mod |= KMOD_LGUI;
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}
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if (mod & SC_MOD_RSUPER) {
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sdl_mod |= KMOD_RGUI;
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}
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return sdl_mod;
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}
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static bool
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is_shortcut_mod(struct input_manager *im, uint16_t sdl_mod) {
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// keep only the relevant modifier keys
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sdl_mod &= SC_SDL_SHORTCUT_MODS_MASK;
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assert(im->sdl_shortcut_mods.count);
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assert(im->sdl_shortcut_mods.count < SC_MAX_SHORTCUT_MODS);
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for (unsigned i = 0; i < im->sdl_shortcut_mods.count; ++i) {
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if (im->sdl_shortcut_mods.data[i] == sdl_mod) {
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return true;
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}
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}
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return false;
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}
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void
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input_manager_init(struct input_manager *im, bool prefer_text,
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const struct sc_shortcut_mods *shortcut_mods)
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{
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im->prefer_text = prefer_text;
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assert(shortcut_mods->count);
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assert(shortcut_mods->count < SC_MAX_SHORTCUT_MODS);
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for (unsigned i = 0; i < shortcut_mods->count; ++i) {
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uint16_t sdl_mod = to_sdl_mod(shortcut_mods->data[i]);
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assert(sdl_mod);
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im->sdl_shortcut_mods.data[i] = sdl_mod;
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}
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im->sdl_shortcut_mods.count = shortcut_mods->count;
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}
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static void
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send_keycode(struct controller *controller, enum android_keycode keycode,
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int actions, const char *name) {
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// send DOWN event
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
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msg.inject_keycode.keycode = keycode;
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msg.inject_keycode.metastate = 0;
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if (actions & ACTION_DOWN) {
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msg.inject_keycode.action = AKEY_EVENT_ACTION_DOWN;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'inject %s (DOWN)'", name);
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return;
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}
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}
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if (actions & ACTION_UP) {
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msg.inject_keycode.action = AKEY_EVENT_ACTION_UP;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'inject %s (UP)'", name);
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}
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}
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}
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static inline void
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action_home(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_HOME, actions, "HOME");
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}
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static inline void
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action_back(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_BACK, actions, "BACK");
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}
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static inline void
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action_app_switch(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_APP_SWITCH, actions, "APP_SWITCH");
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}
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static inline void
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action_power(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_POWER, actions, "POWER");
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}
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static inline void
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action_volume_up(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_VOLUME_UP, actions, "VOLUME_UP");
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}
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static inline void
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action_volume_down(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_VOLUME_DOWN, actions, "VOLUME_DOWN");
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}
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static inline void
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action_menu(struct controller *controller, int actions) {
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send_keycode(controller, AKEYCODE_MENU, actions, "MENU");
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}
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// turn the screen on if it was off, press BACK otherwise
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static void
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press_back_or_turn_screen_on(struct controller *controller) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'press back or turn screen on'");
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}
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}
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static void
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expand_notification_panel(struct controller *controller) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'expand notification panel'");
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}
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}
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static void
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collapse_notification_panel(struct controller *controller) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'collapse notification panel'");
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}
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}
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static void
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set_device_clipboard(struct controller *controller, bool paste) {
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char *text = SDL_GetClipboardText();
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if (!text) {
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LOGW("Could not get clipboard text: %s", SDL_GetError());
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return;
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}
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if (!*text) {
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// empty text
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SDL_free(text);
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return;
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}
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
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msg.set_clipboard.text = text;
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msg.set_clipboard.paste = paste;
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if (!controller_push_msg(controller, &msg)) {
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SDL_free(text);
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LOGW("Could not request 'set device clipboard'");
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}
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}
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static void
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set_screen_power_mode(struct controller *controller,
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enum screen_power_mode mode) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
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msg.set_screen_power_mode.mode = mode;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'set screen power mode'");
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}
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}
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static void
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switch_fps_counter_state(struct fps_counter *fps_counter) {
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// the started state can only be written from the current thread, so there
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// is no ToCToU issue
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if (fps_counter_is_started(fps_counter)) {
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fps_counter_stop(fps_counter);
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LOGI("FPS counter stopped");
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} else {
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if (fps_counter_start(fps_counter)) {
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LOGI("FPS counter started");
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} else {
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LOGE("FPS counter starting failed");
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}
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}
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}
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static void
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clipboard_paste(struct controller *controller) {
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char *text = SDL_GetClipboardText();
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if (!text) {
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LOGW("Could not get clipboard text: %s", SDL_GetError());
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return;
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}
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if (!*text) {
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// empty text
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SDL_free(text);
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return;
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}
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
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msg.inject_text.text = text;
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if (!controller_push_msg(controller, &msg)) {
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SDL_free(text);
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LOGW("Could not request 'paste clipboard'");
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}
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}
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static void
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rotate_device(struct controller *controller) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_ROTATE_DEVICE;
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request device rotation");
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}
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}
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static void
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rotate_client_left(struct screen *screen) {
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unsigned new_rotation = (screen->rotation + 1) % 4;
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screen_set_rotation(screen, new_rotation);
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}
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static void
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rotate_client_right(struct screen *screen) {
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unsigned new_rotation = (screen->rotation + 3) % 4;
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screen_set_rotation(screen, new_rotation);
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}
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void
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input_manager_process_text_input(struct input_manager *im,
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const SDL_TextInputEvent *event) {
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if (is_shortcut_mod(im, SDL_GetModState())) {
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// A shortcut must never generate text events
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return;
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}
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if (!im->prefer_text) {
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char c = event->text[0];
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if (isalpha(c) || c == ' ') {
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assert(event->text[1] == '\0');
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// letters and space are handled as raw key event
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return;
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}
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}
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
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msg.inject_text.text = SDL_strdup(event->text);
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if (!msg.inject_text.text) {
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LOGW("Could not strdup input text");
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return;
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}
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if (!controller_push_msg(im->controller, &msg)) {
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SDL_free(msg.inject_text.text);
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LOGW("Could not request 'inject text'");
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}
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}
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static bool
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convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
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bool prefer_text, uint32_t repeat) {
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to->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
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if (!convert_keycode_action(from->type, &to->inject_keycode.action)) {
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return false;
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}
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uint16_t mod = from->keysym.mod;
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if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod,
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prefer_text)) {
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return false;
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}
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to->inject_keycode.repeat = repeat;
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to->inject_keycode.metastate = convert_meta_state(mod);
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return true;
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}
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void
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input_manager_process_key(struct input_manager *im,
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const SDL_KeyboardEvent *event,
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bool control) {
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// control: indicates the state of the command-line option --no-control
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bool smod = is_shortcut_mod(im, event->keysym.mod);
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struct controller *controller = im->controller;
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SDL_Keycode keycode = event->keysym.sym;
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bool down = event->type == SDL_KEYDOWN;
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bool ctrl = event->keysym.mod & KMOD_CTRL;
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bool shift = event->keysym.mod & KMOD_SHIFT;
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bool repeat = event->repeat;
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// The shortcut modifier is pressed
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if (smod) {
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int action = down ? ACTION_DOWN : ACTION_UP;
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switch (keycode) {
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case SDLK_h:
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if (control && !shift && !repeat) {
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action_home(controller, action);
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}
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return;
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case SDLK_b: // fall-through
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case SDLK_BACKSPACE:
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if (control && !shift && !repeat) {
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action_back(controller, action);
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}
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return;
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case SDLK_s:
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if (control && !shift && !repeat) {
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action_app_switch(controller, action);
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}
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return;
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case SDLK_m:
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if (control && !shift && !repeat) {
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action_menu(controller, action);
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}
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return;
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case SDLK_p:
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if (control && !shift && !repeat) {
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action_power(controller, action);
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}
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return;
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case SDLK_o:
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if (control && !repeat && down) {
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enum screen_power_mode mode = shift
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? SCREEN_POWER_MODE_NORMAL
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: SCREEN_POWER_MODE_OFF;
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set_screen_power_mode(controller, mode);
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}
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return;
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case SDLK_DOWN:
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if (control && !shift) {
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// forward repeated events
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action_volume_down(controller, action);
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}
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return;
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case SDLK_UP:
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if (control && !shift) {
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// forward repeated events
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action_volume_up(controller, action);
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}
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return;
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case SDLK_LEFT:
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if (!shift && !repeat && down) {
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rotate_client_left(im->screen);
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}
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return;
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case SDLK_RIGHT:
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if (!shift && !repeat && down) {
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rotate_client_right(im->screen);
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}
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return;
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case SDLK_v:
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if (control && !repeat && down) {
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if (shift) {
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// store the text in the device clipboard and paste
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set_device_clipboard(controller, true);
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} else {
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// inject the text as input events
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clipboard_paste(controller);
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}
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}
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return;
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case SDLK_f:
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if (!shift && !repeat && down) {
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screen_switch_fullscreen(im->screen);
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}
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return;
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case SDLK_w:
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if (!shift && !repeat && down) {
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screen_resize_to_fit(im->screen);
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}
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return;
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case SDLK_g:
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if (!shift && !repeat && down) {
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screen_resize_to_pixel_perfect(im->screen);
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}
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return;
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case SDLK_i:
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if (!shift && !repeat && down) {
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struct fps_counter *fps_counter =
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im->video_buffer->fps_counter;
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switch_fps_counter_state(fps_counter);
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}
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return;
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case SDLK_n:
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if (control && !repeat && down) {
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if (shift) {
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collapse_notification_panel(controller);
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} else {
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expand_notification_panel(controller);
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}
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}
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return;
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case SDLK_r:
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if (control && !shift && !repeat && down) {
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rotate_device(controller);
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}
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return;
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}
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return;
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}
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if (!control) {
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return;
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}
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if (event->repeat) {
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++im->repeat;
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} else {
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im->repeat = 0;
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}
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if (ctrl && !shift && keycode == SDLK_v && down && !repeat) {
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// Synchronize the computer clipboard to the device clipboard before
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// sending Ctrl+v, to allow seamless copy-paste.
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set_device_clipboard(controller, false);
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}
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struct control_msg msg;
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if (convert_input_key(event, &msg, im->prefer_text, im->repeat)) {
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if (!controller_push_msg(controller, &msg)) {
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LOGW("Could not request 'inject keycode'");
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}
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}
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}
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static bool
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convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
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struct control_msg *to) {
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to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
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to->inject_touch_event.action = AMOTION_EVENT_ACTION_MOVE;
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to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
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to->inject_touch_event.position.screen_size = screen->frame_size;
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to->inject_touch_event.position.point =
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screen_convert_window_to_frame_coords(screen, from->x, from->y);
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to->inject_touch_event.pressure = 1.f;
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to->inject_touch_event.buttons = convert_mouse_buttons(from->state);
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return true;
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}
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void
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input_manager_process_mouse_motion(struct input_manager *im,
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const SDL_MouseMotionEvent *event) {
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if (!event->state) {
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// do not send motion events when no button is pressed
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return;
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}
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if (event->which == SDL_TOUCH_MOUSEID) {
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// simulated from touch events, so it's a duplicate
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return;
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}
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struct control_msg msg;
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if (convert_mouse_motion(event, im->screen, &msg)) {
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if (!controller_push_msg(im->controller, &msg)) {
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LOGW("Could not request 'inject mouse motion event'");
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}
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}
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}
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static bool
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convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
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struct control_msg *to) {
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to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
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if (!convert_touch_action(from->type, &to->inject_touch_event.action)) {
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return false;
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}
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to->inject_touch_event.pointer_id = from->fingerId;
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to->inject_touch_event.position.screen_size = screen->frame_size;
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int dw;
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int dh;
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SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
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// SDL touch event coordinates are normalized in the range [0; 1]
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int32_t x = from->x * dw;
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int32_t y = from->y * dh;
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to->inject_touch_event.position.point =
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screen_convert_drawable_to_frame_coords(screen, x, y);
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to->inject_touch_event.pressure = from->pressure;
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to->inject_touch_event.buttons = 0;
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return true;
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}
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void
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input_manager_process_touch(struct input_manager *im,
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const SDL_TouchFingerEvent *event) {
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struct control_msg msg;
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if (convert_touch(event, im->screen, &msg)) {
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if (!controller_push_msg(im->controller, &msg)) {
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LOGW("Could not request 'inject touch event'");
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}
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}
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}
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static bool
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convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
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struct control_msg *to) {
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to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
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if (!convert_mouse_action(from->type, &to->inject_touch_event.action)) {
|
|
return false;
|
|
}
|
|
|
|
to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
|
|
to->inject_touch_event.position.screen_size = screen->frame_size;
|
|
to->inject_touch_event.position.point =
|
|
screen_convert_window_to_frame_coords(screen, from->x, from->y);
|
|
to->inject_touch_event.pressure =
|
|
from->type == SDL_MOUSEBUTTONDOWN ? 1.f : 0.f;
|
|
to->inject_touch_event.buttons =
|
|
convert_mouse_buttons(SDL_BUTTON(from->button));
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
input_manager_process_mouse_button(struct input_manager *im,
|
|
const SDL_MouseButtonEvent *event,
|
|
bool control) {
|
|
if (event->which == SDL_TOUCH_MOUSEID) {
|
|
// simulated from touch events, so it's a duplicate
|
|
return;
|
|
}
|
|
if (event->type == SDL_MOUSEBUTTONDOWN) {
|
|
if (control && event->button == SDL_BUTTON_RIGHT) {
|
|
press_back_or_turn_screen_on(im->controller);
|
|
return;
|
|
}
|
|
if (control && event->button == SDL_BUTTON_MIDDLE) {
|
|
action_home(im->controller, ACTION_DOWN | ACTION_UP);
|
|
return;
|
|
}
|
|
|
|
// double-click on black borders resize to fit the device screen
|
|
if (event->button == SDL_BUTTON_LEFT && event->clicks == 2) {
|
|
int32_t x = event->x;
|
|
int32_t y = event->y;
|
|
screen_hidpi_scale_coords(im->screen, &x, &y);
|
|
SDL_Rect *r = &im->screen->rect;
|
|
bool outside = x < r->x || x >= r->x + r->w
|
|
|| y < r->y || y >= r->y + r->h;
|
|
if (outside) {
|
|
screen_resize_to_fit(im->screen);
|
|
return;
|
|
}
|
|
}
|
|
// otherwise, send the click event to the device
|
|
}
|
|
|
|
if (!control) {
|
|
return;
|
|
}
|
|
|
|
struct control_msg msg;
|
|
if (convert_mouse_button(event, im->screen, &msg)) {
|
|
if (!controller_push_msg(im->controller, &msg)) {
|
|
LOGW("Could not request 'inject mouse button event'");
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool
|
|
convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
|
|
struct control_msg *to) {
|
|
|
|
// mouse_x and mouse_y are expressed in pixels relative to the window
|
|
int mouse_x;
|
|
int mouse_y;
|
|
SDL_GetMouseState(&mouse_x, &mouse_y);
|
|
|
|
struct position position = {
|
|
.screen_size = screen->frame_size,
|
|
.point = screen_convert_window_to_frame_coords(screen,
|
|
mouse_x, mouse_y),
|
|
};
|
|
|
|
to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
|
|
|
|
to->inject_scroll_event.position = position;
|
|
to->inject_scroll_event.hscroll = from->x;
|
|
to->inject_scroll_event.vscroll = from->y;
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
input_manager_process_mouse_wheel(struct input_manager *im,
|
|
const SDL_MouseWheelEvent *event) {
|
|
struct control_msg msg;
|
|
if (convert_mouse_wheel(event, im->screen, &msg)) {
|
|
if (!controller_push_msg(im->controller, &msg)) {
|
|
LOGW("Could not request 'inject mouse wheel event'");
|
|
}
|
|
}
|
|
}
|