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-rw-r--r--src/GlobalHotkeysLinux.cpp275
1 files changed, 0 insertions, 275 deletions
diff --git a/src/GlobalHotkeysLinux.cpp b/src/GlobalHotkeysLinux.cpp
deleted file mode 100644
index d780916..0000000
--- a/src/GlobalHotkeysLinux.cpp
+++ /dev/null
@@ -1,275 +0,0 @@
-#include "../include/GlobalHotkeysLinux.hpp"
-#include <sys/wait.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <string.h>
-
-extern "C" {
-#include <mgl/mgl.h>
-}
-#include <X11/Xlib.h>
-#include <X11/keysym.h>
-#include <linux/input-event-codes.h>
-
-#define PIPE_READ 0
-#define PIPE_WRITE 1
-
-namespace gsr {
- static const char* grab_type_to_arg(GlobalHotkeysLinux::GrabType grab_type) {
- switch(grab_type) {
- case GlobalHotkeysLinux::GrabType::ALL: return "--all";
- case GlobalHotkeysLinux::GrabType::VIRTUAL: return "--virtual";
- }
- return "--all";
- }
-
- static inline uint8_t x11_keycode_to_linux_keycode(uint8_t code) {
- return code - 8;
- }
-
- static std::vector<uint8_t> modifiers_to_linux_keys(uint32_t modifiers) {
- std::vector<uint8_t> result;
- if(modifiers & HOTKEY_MOD_LSHIFT)
- result.push_back(KEY_LEFTSHIFT);
- if(modifiers & HOTKEY_MOD_RSHIFT)
- result.push_back(KEY_RIGHTSHIFT);
- if(modifiers & HOTKEY_MOD_LCTRL)
- result.push_back(KEY_LEFTCTRL);
- if(modifiers & HOTKEY_MOD_RCTRL)
- result.push_back(KEY_RIGHTCTRL);
- if(modifiers & HOTKEY_MOD_LALT)
- result.push_back(KEY_LEFTALT);
- if(modifiers & HOTKEY_MOD_RALT)
- result.push_back(KEY_RIGHTALT);
- if(modifiers & HOTKEY_MOD_LSUPER)
- result.push_back(KEY_LEFTMETA);
- if(modifiers & HOTKEY_MOD_RSUPER)
- result.push_back(KEY_RIGHTMETA);
- return result;
- }
-
- static std::string linux_keys_to_command_string(const uint8_t *keys, size_t size) {
- std::string result;
- for(size_t i = 0; i < size; ++i) {
- if(!result.empty())
- result += "+";
- result += std::to_string(keys[i]);
- }
- return result;
- }
-
- static bool x11_key_is_alpha_numerical(KeySym keysym) {
- return (keysym >= XK_A && keysym <= XK_Z) || (keysym >= XK_a && keysym <= XK_z) || (keysym >= XK_0 && keysym <= XK_9);
- }
-
- GlobalHotkeysLinux::GlobalHotkeysLinux(GrabType grab_type) : grab_type(grab_type) {
- for(int i = 0; i < 2; ++i) {
- read_pipes[i] = -1;
- write_pipes[i] = -1;
- }
- }
-
- GlobalHotkeysLinux::~GlobalHotkeysLinux() {
- if(write_pipes[PIPE_WRITE] > 0) {
- char command[32];
- const int command_size = snprintf(command, sizeof(command), "exit\n");
- if(write(write_pipes[PIPE_WRITE], command, command_size) != command_size) {
- fprintf(stderr, "Error: GlobalHotkeysLinux::~GlobalHotkeysLinux: failed to write command to gsr-global-hotkeys, error: %s\n", strerror(errno));
- close_fds();
- }
- } else {
- close_fds();
- }
-
- if(process_id > 0) {
- int status;
- waitpid(process_id, &status, 0);
- }
-
- close_fds();
- }
-
- void GlobalHotkeysLinux::close_fds() {
- for(int i = 0; i < 2; ++i) {
- if(read_pipes[i] > 0) {
- close(read_pipes[i]);
- read_pipes[i] = -1;
- }
-
- if(write_pipes[i] > 0) {
- close(write_pipes[i]);
- write_pipes[i] = -1;
- }
- }
-
- if(read_file) {
- fclose(read_file);
- read_file = nullptr;
- }
- }
-
- bool GlobalHotkeysLinux::start() {
- const char *grab_type_arg = grab_type_to_arg(grab_type);
- const bool inside_flatpak = getenv("FLATPAK_ID") != NULL;
- const char *user_homepath = getenv("HOME");
- if(!user_homepath)
- user_homepath = "/tmp";
-
- if(process_id > 0)
- return false;
-
- if(pipe(read_pipes) == -1)
- return false;
-
- if(pipe(write_pipes) == -1) {
- for(int i = 0; i < 2; ++i) {
- close(read_pipes[i]);
- read_pipes[i] = -1;
- }
- return false;
- }
-
- const pid_t pid = vfork();
- if(pid == -1) {
- perror("Failed to vfork");
- for(int i = 0; i < 2; ++i) {
- close(read_pipes[i]);
- close(write_pipes[i]);
- read_pipes[i] = -1;
- write_pipes[i] = -1;
- }
- return false;
- } else if(pid == 0) { /* child */
- dup2(read_pipes[PIPE_WRITE], STDOUT_FILENO);
- for(int i = 0; i < 2; ++i) {
- close(read_pipes[i]);
- }
-
- dup2(write_pipes[PIPE_READ], STDIN_FILENO);
- for(int i = 0; i < 2; ++i) {
- close(write_pipes[i]);
- }
-
- if(inside_flatpak) {
- const char *args[] = { "flatpak-spawn", "--host", "/var/lib/flatpak/app/com.dec05eba.gpu_screen_recorder/current/active/files/bin/kms-server-proxy", "launch-gsr-global-hotkeys", user_homepath, grab_type_arg, nullptr };
- execvp(args[0], (char* const*)args);
- } else {
- const char *args[] = { "gsr-global-hotkeys", grab_type_arg, nullptr };
- execvp(args[0], (char* const*)args);
- }
-
- perror("gsr-global-hotkeys");
- _exit(127);
- } else { /* parent */
- process_id = pid;
-
- close(read_pipes[PIPE_WRITE]);
- read_pipes[PIPE_WRITE] = -1;
-
- close(write_pipes[PIPE_READ]);
- write_pipes[PIPE_READ] = -1;
-
- fcntl(read_pipes[PIPE_READ], F_SETFL, fcntl(read_pipes[PIPE_READ], F_GETFL) | O_NONBLOCK);
- read_file = fdopen(read_pipes[PIPE_READ], "r");
- if(read_file)
- read_pipes[PIPE_READ] = -1;
- else
- fprintf(stderr, "fdopen failed for read, error: %s\n", strerror(errno));
- }
-
- return true;
- }
-
- bool GlobalHotkeysLinux::bind_key_press(Hotkey hotkey, const std::string &id, GlobalHotkeyCallback callback) {
- if(process_id <= 0)
- return false;
-
- if(bound_actions_by_id.find(id) != bound_actions_by_id.end())
- return false;
-
- if(id.find(' ') != std::string::npos || id.find('\n') != std::string::npos) {
- fprintf(stderr, "Error: GlobalHotkeysLinux::bind_key_press: id \"%s\" contains either space or newline\n", id.c_str());
- return false;
- }
-
- if(hotkey.key == 0) {
- //fprintf(stderr, "Error: GlobalHotkeysLinux::bind_key_press: hotkey requires a key\n");
- return false;
- }
-
- if(hotkey.modifiers == 0 && x11_key_is_alpha_numerical(hotkey.key)) {
- //fprintf(stderr, "Error: GlobalHotkeysLinux::bind_key_press: hotkey requires a modifier\n");
- return false;
- }
-
- mgl_context *context = mgl_get_context();
- Display *display = (Display*)context->connection;
- const uint8_t keycode = x11_keycode_to_linux_keycode(XKeysymToKeycode(display, hotkey.key));
- const std::vector<uint8_t> modifiers = modifiers_to_linux_keys(hotkey.modifiers);
- const std::string modifiers_command = linux_keys_to_command_string(modifiers.data(), modifiers.size());
-
- char command[256];
- int command_size = 0;
- if(modifiers_command.empty())
- command_size = snprintf(command, sizeof(command), "bind %s %d\n", id.c_str(), (int)keycode);
- else
- command_size = snprintf(command, sizeof(command), "bind %s %d+%s\n", id.c_str(), (int)keycode, modifiers_command.c_str());
-
- if(write(write_pipes[PIPE_WRITE], command, command_size) != command_size) {
- fprintf(stderr, "Error: GlobalHotkeysLinux::bind_key_press: failed to write command to gsr-global-hotkeys, error: %s\n", strerror(errno));
- return false;
- }
-
- bound_actions_by_id[id] = std::move(callback);
- return true;
- }
-
- void GlobalHotkeysLinux::unbind_all_keys() {
- if(process_id <= 0)
- return;
-
- if(bound_actions_by_id.empty())
- return;
-
- char command[32];
- const int command_size = snprintf(command, sizeof(command), "unbind_all\n");
- if(write(write_pipes[PIPE_WRITE], command, command_size) != command_size) {
- fprintf(stderr, "Error: GlobalHotkeysLinux::unbind_all_keys: failed to write command to gsr-global-hotkeys, error: %s\n", strerror(errno));
- }
- bound_actions_by_id.clear();
- }
-
- void GlobalHotkeysLinux::poll_events() {
- if(process_id <= 0) {
- //fprintf(stderr, "error: GlobalHotkeysLinux::poll_events failed, process has not been started yet. Use GlobalHotkeysLinux::start to start the process first\n");
- return;
- }
-
- if(!read_file) {
- //fprintf(stderr, "error: GlobalHotkeysLinux::poll_events failed, read file hasn't opened\n");
- return;
- }
-
- std::string action;
- char buffer[256];
- while(true) {
- char *line = fgets(buffer, sizeof(buffer), read_file);
- if(!line)
- break;
-
- int line_len = strlen(line);
- if(line_len == 0)
- continue;
-
- if(line[line_len - 1] == '\n') {
- line[line_len - 1] = '\0';
- --line_len;
- }
-
- action = line;
- auto it = bound_actions_by_id.find(action);
- if(it != bound_actions_by_id.end())
- it->second(action);
- }
- }
-}
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