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-rw-r--r--tools/gsr-global-hotkeys/hotplug.c76
-rw-r--r--tools/gsr-global-hotkeys/hotplug.h22
-rw-r--r--tools/gsr-global-hotkeys/keyboard_event.c273
-rw-r--r--tools/gsr-global-hotkeys/keyboard_event.h63
-rw-r--r--tools/gsr-global-hotkeys/main.c264
-rw-r--r--tools/gsr-window-name/main.c187
6 files changed, 464 insertions, 421 deletions
diff --git a/tools/gsr-global-hotkeys/hotplug.c b/tools/gsr-global-hotkeys/hotplug.c
new file mode 100644
index 0000000..6c82929
--- /dev/null
+++ b/tools/gsr-global-hotkeys/hotplug.c
@@ -0,0 +1,76 @@
+#include "hotplug.h"
+
+/* C stdlib */
+#include <string.h>
+
+/* POSIX */
+#include <unistd.h>
+#include <sys/socket.h>
+
+/* LINUX */
+#include <linux/types.h>
+#include <linux/netlink.h>
+
+bool hotplug_event_init(hotplug_event *self) {
+ memset(self, 0, sizeof(*self));
+
+ struct sockaddr_nl nls = {
+ .nl_family = AF_NETLINK,
+ .nl_pid = getpid(),
+ .nl_groups = -1
+ };
+
+ const int fd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
+ if(fd == -1)
+ return false; /* Not root user */
+
+ if(bind(fd, (void *)&nls, sizeof(struct sockaddr_nl))) {
+ close(fd);
+ return false;
+ }
+
+ self->fd = fd;
+ return true;
+}
+
+void hotplug_event_deinit(hotplug_event *self) {
+ if(self->fd > 0) {
+ close(self->fd);
+ self->fd = -1;
+ }
+}
+
+int hotplug_event_steal_fd(hotplug_event *self) {
+ const int fd = self->fd;
+ self->fd = -1;
+ return fd;
+}
+
+/* TODO: This assumes SUBSYSTEM= is output before DEVNAME=, is that always true? */
+static void hotplug_event_parse_netlink_data(hotplug_event *self, const char *line, hotplug_device_added_callback callback, void *userdata) {
+ const char *at_symbol = strchr(line, '@');
+ if(at_symbol) {
+ self->event_is_add = strncmp(line, "add@", 4) == 0;
+ self->subsystem_is_input = false;
+ } else if(self->event_is_add) {
+ if(strcmp(line, "SUBSYSTEM=input") == 0)
+ self->subsystem_is_input = true;
+
+ if(self->subsystem_is_input && strncmp(line, "DEVNAME=", 8) == 0)
+ callback(line+8, userdata);
+ }
+}
+
+/* Netlink uevent structure is documented here: https://web.archive.org/web/20160127215232/https://www.kernel.org/doc/pending/hotplug.txt */
+void hotplug_event_process_event_data(hotplug_event *self, int fd, hotplug_device_added_callback callback, void *userdata) {
+ const int bytes_read = read(fd, self->event_data, sizeof(self->event_data));
+ int data_index = 0;
+ if(bytes_read <= 0)
+ return;
+
+ /* Hotplug data ends with a newline and a null terminator */
+ while(data_index < bytes_read) {
+ hotplug_event_parse_netlink_data(self, self->event_data + data_index, callback, userdata);
+ data_index += strlen(self->event_data + data_index) + 1; /* Skip null terminator as well */
+ }
+}
diff --git a/tools/gsr-global-hotkeys/hotplug.h b/tools/gsr-global-hotkeys/hotplug.h
new file mode 100644
index 0000000..665485a
--- /dev/null
+++ b/tools/gsr-global-hotkeys/hotplug.h
@@ -0,0 +1,22 @@
+#ifndef HOTPLUG_H
+#define HOTPLUG_H
+
+/* C stdlib */
+#include <stdbool.h>
+
+typedef struct {
+ int fd;
+ bool event_is_add;
+ bool subsystem_is_input;
+ char event_data[1024];
+} hotplug_event;
+
+typedef void (*hotplug_device_added_callback)(const char *devname, void *userdata);
+
+bool hotplug_event_init(hotplug_event *self);
+void hotplug_event_deinit(hotplug_event *self);
+
+int hotplug_event_steal_fd(hotplug_event *self);
+void hotplug_event_process_event_data(hotplug_event *self, int fd, hotplug_device_added_callback callback, void *userdata);
+
+#endif /* HOTPLUG_H */
diff --git a/tools/gsr-global-hotkeys/keyboard_event.c b/tools/gsr-global-hotkeys/keyboard_event.c
new file mode 100644
index 0000000..9cc518a
--- /dev/null
+++ b/tools/gsr-global-hotkeys/keyboard_event.c
@@ -0,0 +1,273 @@
+#include "keyboard_event.h"
+
+/* C stdlib */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdbool.h>
+
+/* POSIX */
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/poll.h>
+
+/* LINUX */
+#include <linux/input.h>
+
+/*
+ We could get initial keyboard state with:
+ unsigned char key_states[KEY_MAX/8 + 1];
+ ioctl(fd, EVIOCGKEY(sizeof(key_states)), key_states), but ignore that for now
+*/
+
+static void keyboard_event_process_input_event_data(keyboard_event *self, int fd, key_callback callback, void *userdata) {
+ struct input_event event;
+ if(read(fd, &event, sizeof(event)) != sizeof(event)) {
+ fprintf(stderr, "Error: failed to read input event data\n");
+ return;
+ }
+
+ // value = 1 == key pressed
+ //if(event.type == EV_KEY && event.code == KEY_A && event.value == 1) {
+ //fprintf(stderr, "fd: %d, type: %d, pressed %d, value: %d\n", fd, event.type, event.code, event.value);
+ //}
+
+ if(event.type == EV_KEY) {
+ switch(event.code) {
+ case KEY_LEFTSHIFT:
+ self->lshift_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_RIGHTSHIFT:
+ self->rshift_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_LEFTCTRL:
+ self->lctrl_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_RIGHTCTRL:
+ self->rctrl_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_LEFTALT:
+ self->lalt_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_RIGHTALT:
+ self->ralt_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_LEFTMETA:
+ self->lmeta_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ case KEY_RIGHTMETA:
+ self->rmeta_button_state = event.value >= 1 ? KEYBOARD_BUTTON_PRESSED : KEYBOARD_BUTTON_RELEASED;
+ break;
+ default: {
+ const bool shift_pressed = self->lshift_button_state == KEYBOARD_BUTTON_PRESSED || self->rshift_button_state == KEYBOARD_BUTTON_PRESSED;
+ const bool ctrl_pressed = self->lctrl_button_state == KEYBOARD_BUTTON_PRESSED || self->rctrl_button_state == KEYBOARD_BUTTON_PRESSED;
+ const bool alt_pressed = self->lalt_button_state == KEYBOARD_BUTTON_PRESSED || self->ralt_button_state == KEYBOARD_BUTTON_PRESSED;
+ const bool meta_pressed = self->lmeta_button_state == KEYBOARD_BUTTON_PRESSED || self->rmeta_button_state == KEYBOARD_BUTTON_PRESSED;
+ //fprintf(stderr, "pressed key: %d, state: %d, shift: %s, ctrl: %s, alt: %s, meta: %s\n", event.code, event.value,
+ // shift_pressed ? "yes" : "no", ctrl_pressed ? "yes" : "no", alt_pressed ? "yes" : "no", meta_pressed ? "yes" : "no");
+ uint32_t modifiers = 0;
+ if(shift_pressed)
+ modifiers |= KEYBOARD_MODKEY_SHIFT;
+ if(ctrl_pressed)
+ modifiers |= KEYBOARD_MODKEY_CTRL;
+ if(alt_pressed)
+ modifiers |= KEYBOARD_MODKEY_ALT;
+ if(meta_pressed)
+ modifiers |= KEYBOARD_MODKEY_SUPER;
+
+ callback(event.code, modifiers, event.value, userdata);
+ break;
+ }
+ }
+ }
+}
+
+/* Returns -1 if invalid format. Expected |dev_input_filepath| to be in format /dev/input/eventN */
+static int get_dev_input_id_from_filepath(const char *dev_input_filepath) {
+ if(strncmp(dev_input_filepath, "/dev/input/event", 16) != 0)
+ return -1;
+
+ int dev_input_id = -1;
+ if(sscanf(dev_input_filepath + 16, "%d", &dev_input_id) == 1)
+ return dev_input_id;
+ return -1;
+}
+
+static bool keyboard_event_has_event_with_dev_input_fd(keyboard_event *self, int dev_input_id) {
+ for(int i = 0; i < self->num_event_polls; ++i) {
+ if(self->dev_input_ids[i] == dev_input_id)
+ return true;
+ }
+ return false;
+}
+
+static bool keyboard_event_try_add_device_if_keyboard(keyboard_event *self, const char *dev_input_filepath) {
+ const int dev_input_id = get_dev_input_id_from_filepath(dev_input_filepath);
+ if(dev_input_id == -1)
+ return false;
+
+ if(keyboard_event_has_event_with_dev_input_fd(self, dev_input_id))
+ return false;
+
+ const int fd = open(dev_input_filepath, O_RDONLY);
+ if(fd == -1)
+ return false;
+
+ char device_name[256];
+ device_name[0] = '\0';
+ ioctl(fd, EVIOCGNAME(sizeof(device_name)), device_name);
+
+ unsigned long evbit = 0;
+ ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), &evbit);
+ if(evbit & (1 << EV_KEY)) {
+ unsigned char key_bits[KEY_MAX/8 + 1] = {0};
+ ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(key_bits)), &key_bits);
+
+ /* Test if device supports KEY_A since not all devices that support EV_KEY are keyboards, for example even a power button is an EV_KEY */
+ const int key_test = KEY_A;
+ const bool supports_key_events = key_bits[key_test/8] & (1 << (key_test % 8));
+ if(supports_key_events) {
+ if(self->num_event_polls < MAX_EVENT_POLLS) {
+ //fprintf(stderr, "%s (%s) supports key inputs\n", dev_input_filepath, device_name);
+ self->event_polls[self->num_event_polls] = (struct pollfd) {
+ .fd = fd,
+ .events = POLLIN,
+ .revents = 0
+ };
+ self->dev_input_ids[self->num_event_polls] = dev_input_id;
+
+ ++self->num_event_polls;
+ return true;
+ } else {
+ fprintf(stderr, "Warning: the maximum number of keyboard devices have been registered. The newly added keyboard will be ignored\n");
+ }
+ }
+ }
+
+ close(fd);
+ return false;
+}
+
+static bool keyboard_event_add_dev_input_devices(keyboard_event *self) {
+ DIR *dir = opendir("/dev/input");
+ if(!dir) {
+ fprintf(stderr, "error: failed to open /dev/input, error: %s\n", strerror(errno));
+ return false;
+ }
+
+ char dev_input_filepath[1024];
+ for(;;) {
+ struct dirent *entry = readdir(dir);
+ if(!entry)
+ break;
+
+ if(strncmp(entry->d_name, "event", 5) != 0)
+ continue;
+
+ snprintf(dev_input_filepath, sizeof(dev_input_filepath), "/dev/input/%s", entry->d_name);
+ keyboard_event_try_add_device_if_keyboard(self, dev_input_filepath);
+ }
+
+ closedir(dir);
+ return true;
+}
+
+static void keyboard_event_remove_event(keyboard_event *self, int index) {
+ if(index < 0 || index >= self->num_event_polls)
+ return;
+
+ close(self->event_polls[index].fd);
+ for(int j = index + 1; j < self->num_event_polls; ++j) {
+ self->event_polls[j - 1] = self->event_polls[j];
+ self->dev_input_ids[j - 1] = self->dev_input_ids[j];
+ }
+ --self->num_event_polls;
+}
+
+bool keyboard_event_init(keyboard_event *self, bool poll_stdout_error) {
+ memset(self, 0, sizeof(*self));
+ self->stdout_event_index = -1;
+ self->hotplug_event_index = -1;
+
+ if(poll_stdout_error) {
+ self->event_polls[self->num_event_polls] = (struct pollfd) {
+ .fd = STDOUT_FILENO,
+ .events = 0,
+ .revents = 0
+ };
+ self->dev_input_ids[self->num_event_polls] = -1;
+
+ self->stdout_event_index = self->num_event_polls;
+ ++self->num_event_polls;
+ }
+
+ if(hotplug_event_init(&self->hotplug_ev)) {
+ self->event_polls[self->num_event_polls] = (struct pollfd) {
+ .fd = hotplug_event_steal_fd(&self->hotplug_ev),
+ .events = POLLIN,
+ .revents = 0
+ };
+ self->dev_input_ids[self->num_event_polls] = -1;
+
+ self->hotplug_event_index = self->num_event_polls;
+ ++self->num_event_polls;
+ } else {
+ fprintf(stderr, "Warning: failed to setup hotplugging\n");
+ }
+
+ keyboard_event_add_dev_input_devices(self);
+
+ /* Neither hotplugging nor any keyboard devices were found. We will never listen to keyboard events so might as well fail */
+ if(self->num_event_polls == 0) {
+ keyboard_event_deinit(self);
+ return false;
+ }
+
+ return true;
+}
+
+void keyboard_event_deinit(keyboard_event *self) {
+ for(int i = 0; i < self->num_event_polls; ++i) {
+ close(self->event_polls[i].fd);
+ }
+ self->num_event_polls = 0;
+
+ hotplug_event_deinit(&self->hotplug_ev);
+}
+
+static void on_device_added_callback(const char *devname, void *userdata) {
+ keyboard_event *keyboard_ev = userdata;
+ char dev_input_filepath[1024];
+ snprintf(dev_input_filepath, sizeof(dev_input_filepath), "/dev/%s", devname);
+ keyboard_event_try_add_device_if_keyboard(keyboard_ev, dev_input_filepath);
+}
+
+void keyboard_event_poll_events(keyboard_event *self, int timeout_milliseconds, key_callback callback, void *userdata) {
+ if(poll(self->event_polls, self->num_event_polls, timeout_milliseconds) <= 0)
+ return;
+
+ for(int i = 0; i < self->num_event_polls; ++i) {
+ if(i == self->stdout_event_index && self->event_polls[i].revents & (POLLHUP|POLLERR))
+ self->stdout_failed = true;
+
+ if(self->event_polls[i].revents & POLLHUP) { /* TODO: What if this is the hotplug fd? */
+ keyboard_event_remove_event(self, i);
+ --i; /* Repeat same index since the current element has been removed */
+ continue;
+ }
+
+ if(!(self->event_polls[i].revents & POLLIN))
+ continue;
+
+ if(i == self->hotplug_event_index)
+ /* Device is added to end of |event_polls| so it's ok to add while iterating it via index */
+ hotplug_event_process_event_data(&self->hotplug_ev, self->event_polls[i].fd, on_device_added_callback, self);
+ else
+ keyboard_event_process_input_event_data(self, self->event_polls[i].fd, callback, userdata);
+ }
+}
+
+bool keyboard_event_stdout_has_failed(keyboard_event *self) {
+ return self->stdout_failed;
+}
diff --git a/tools/gsr-global-hotkeys/keyboard_event.h b/tools/gsr-global-hotkeys/keyboard_event.h
new file mode 100644
index 0000000..5084659
--- /dev/null
+++ b/tools/gsr-global-hotkeys/keyboard_event.h
@@ -0,0 +1,63 @@
+#ifndef KEYBOARD_EVENT_H
+#define KEYBOARD_EVENT_H
+
+/* Read keyboard input from linux /dev/input/eventN devices, with hotplug support */
+
+#include "hotplug.h"
+
+/* C stdlib */
+#include <stdbool.h>
+#include <stdint.h>
+
+/* POSIX */
+#include <sys/poll.h>
+
+/* LINUX */
+#include <linux/input-event-codes.h>
+
+#define MAX_EVENT_POLLS 32
+
+typedef enum {
+ KEYBOARD_MODKEY_ALT = 1 << 0,
+ KEYBOARD_MODKEY_SUPER = 1 << 1,
+ KEYBOARD_MODKEY_CTRL = 1 << 2,
+ KEYBOARD_MODKEY_SHIFT = 1 << 3
+} keyboard_modkeys;
+
+typedef enum {
+ KEYBOARD_BUTTON_RELEASED,
+ KEYBOARD_BUTTON_PRESSED
+} keyboard_button_state;
+
+typedef struct {
+ struct pollfd event_polls[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */
+ int dev_input_ids[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */
+ int num_event_polls;
+
+ int stdout_event_index;
+ int hotplug_event_index;
+ bool stdout_failed;
+
+ hotplug_event hotplug_ev;
+
+ keyboard_button_state lshift_button_state;
+ keyboard_button_state rshift_button_state;
+ keyboard_button_state lctrl_button_state;
+ keyboard_button_state rctrl_button_state;
+ keyboard_button_state lalt_button_state;
+ keyboard_button_state ralt_button_state;
+ keyboard_button_state lmeta_button_state;
+ keyboard_button_state rmeta_button_state;
+} keyboard_event;
+
+/* |key| is a KEY_ from linux/input-event-codes.h. |modifiers| is a bitmask of keyboard_modkeys. |press_status| is 0 for released, 1 for pressed and 2 for repeat */
+typedef void (*key_callback)(uint32_t key, uint32_t modifiers, int press_status, void *userdata);
+
+bool keyboard_event_init(keyboard_event *self, bool poll_stdout_error);
+void keyboard_event_deinit(keyboard_event *self);
+
+/* If |timeout_milliseconds| is -1 then wait until an event is received */
+void keyboard_event_poll_events(keyboard_event *self, int timeout_milliseconds, key_callback callback, void *userdata);
+bool keyboard_event_stdout_has_failed(keyboard_event *self);
+
+#endif /* KEYBOARD_EVENT_H */
diff --git a/tools/gsr-global-hotkeys/main.c b/tools/gsr-global-hotkeys/main.c
index 2823487..1be7f2d 100644
--- a/tools/gsr-global-hotkeys/main.c
+++ b/tools/gsr-global-hotkeys/main.c
@@ -1,28 +1,11 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <poll.h>
-
-#include <libudev.h>
-#include <libinput.h>
-#include <libevdev/libevdev.h>
-#include <xkbcommon/xkbcommon.h>
+#include "keyboard_event.h"
-typedef struct {
- struct xkb_context *xkb_context;
- struct xkb_keymap *xkb_keymap;
- struct xkb_state *xkb_state;
-} key_mapper;
+/* C stdlib */
+#include <stdio.h>
+#include <stdint.h>
-typedef enum {
- MODKEY_ALT = 1 << 0,
- MODKEY_SUPER = 1 << 1,
- MODKEY_CTRL = 1 << 2,
- MODKEY_SHIFT = 1 << 3
-} modkeys;
+/* POSIX */
+#include <unistd.h>
typedef struct {
uint32_t key;
@@ -32,186 +15,28 @@ typedef struct {
#define NUM_GLOBAL_HOTKEYS 6
static global_hotkey global_hotkeys[NUM_GLOBAL_HOTKEYS] = {
- { .key = XKB_KEY_z, .modifiers = MODKEY_ALT, .action = "show_hide" },
- { .key = XKB_KEY_F9, .modifiers = MODKEY_ALT, .action = "record" },
- { .key = XKB_KEY_F7, .modifiers = MODKEY_ALT, .action = "pause" },
- { .key = XKB_KEY_F8, .modifiers = MODKEY_ALT, .action = "stream" },
- { .key = XKB_KEY_F10, .modifiers = MODKEY_ALT | MODKEY_SHIFT, .action = "replay_start" },
- { .key = XKB_KEY_F10, .modifiers = MODKEY_ALT, .action = "replay_save" }
+ { .key = KEY_Z, .modifiers = KEYBOARD_MODKEY_ALT, .action = "show_hide" },
+ { .key = KEY_F9, .modifiers = KEYBOARD_MODKEY_ALT, .action = "record" },
+ { .key = KEY_F7, .modifiers = KEYBOARD_MODKEY_ALT, .action = "pause" },
+ { .key = KEY_F8, .modifiers = KEYBOARD_MODKEY_ALT, .action = "stream" },
+ { .key = KEY_F10, .modifiers = KEYBOARD_MODKEY_ALT | KEYBOARD_MODKEY_SHIFT, .action = "replay_start" },
+ { .key = KEY_F10, .modifiers = KEYBOARD_MODKEY_ALT, .action = "replay_save" }
};
-static int open_restricted(const char *path, int flags, void *user_data) {
- (void)user_data;
- int fd = open(path, flags);
- if(fd < 0)
- fprintf(stderr, "error: failed to open %s, error: %s\n", path, strerror(errno));
- return fd < 0 ? -errno : fd;
-}
-
-static void close_restricted(int fd, void *user_data) {
- (void)user_data;
- close(fd);
-}
-
-static const struct libinput_interface interface = {
- .open_restricted = open_restricted,
- .close_restricted = close_restricted,
-};
-
-static bool is_mod_key(xkb_keycode_t xkb_key_code) {
- return xkb_key_code >= XKB_KEY_Shift_L && xkb_key_code <= XKB_KEY_Hyper_R;
-}
-
-typedef struct {
- const char *modname;
- modkeys key;
-} modname_to_modkey_map;
-
-static uint32_t xkb_state_to_modifiers(struct xkb_state *xkb_state) {
- const modname_to_modkey_map modifier_keys[] = {
- { .modname = XKB_MOD_NAME_ALT, .key = MODKEY_ALT },
- { .modname = XKB_MOD_NAME_LOGO, .key = MODKEY_SUPER },
- { .modname = XKB_MOD_NAME_SHIFT, .key = MODKEY_SHIFT },
- { .modname = XKB_MOD_NAME_CTRL, .key = MODKEY_CTRL }
- };
-
- uint32_t modifiers = 0;
- for(int i = 0; i < 4; ++i) {
- if(xkb_state_mod_name_is_active(xkb_state, modifier_keys[i].modname, XKB_STATE_MODS_EFFECTIVE) > 0)
- modifiers |= modifier_keys[i].key;
- }
- return modifiers;
-}
-
-#define KEY_CODE_EV_TO_XKB(key) ((key) + 8)
-
-static int print_key_event(struct libinput_event *event, key_mapper *mapper) {
- struct libinput_event_keyboard *keyboard = libinput_event_get_keyboard_event(event);
- const uint32_t key_code = libinput_event_keyboard_get_key(keyboard);
- enum libinput_key_state state_code = libinput_event_keyboard_get_key_state(keyboard);
-
- const xkb_keycode_t xkb_key_code = KEY_CODE_EV_TO_XKB(key_code);
- xkb_state_update_key(mapper->xkb_state, xkb_key_code, state_code == LIBINPUT_KEY_STATE_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP);
- xkb_keysym_t xkb_key_sym = xkb_state_key_get_one_sym(mapper->xkb_state, xkb_key_code);
- // char main_key[128];
- // main_key[0] = '\0';
+static void on_key_callback(uint32_t key, uint32_t modifiers, int press_status, void *userdata) {
+ (void)userdata;
+ if(press_status != 1) /* 1 == Pressed */
+ return;
- // if(xkb_state_mod_name_is_active(mapper->xkb_state, XKB_MOD_NAME_LOGO, XKB_STATE_MODS_EFFECTIVE) > 0)
- // strcat(main_key, "Super+");
- // if(xkb_state_mod_name_is_active(mapper->xkb_state, XKB_MOD_NAME_CTRL, XKB_STATE_MODS_EFFECTIVE) > 0)
- // strcat(main_key, "Ctrl+");
- // if(xkb_state_mod_name_is_active(mapper->xkb_state, XKB_MOD_NAME_ALT, XKB_STATE_MODS_EFFECTIVE) > 0 && strcmp(main_key, "Meta") != 0)
- // strcat(main_key, "Alt+");
- // if(xkb_state_mod_name_is_active(mapper->xkb_state, XKB_MOD_NAME_SHIFT, XKB_STATE_MODS_EFFECTIVE) > 0)
- // strcat(main_key, "Shift+");
-
- // if(!is_mod_key(xkb_key_sym)) {
- // char reg_key[64];
- // reg_key[0] = '\0';
- // xkb_keysym_get_name(xkb_key_sym, reg_key, sizeof(reg_key));
- // strcat(main_key, reg_key);
- // }
-
- if(state_code != LIBINPUT_KEY_STATE_PRESSED)
- return 0;
-
- const uint32_t current_modifiers = xkb_state_to_modifiers(mapper->xkb_state);
for(int i = 0; i < NUM_GLOBAL_HOTKEYS; ++i) {
- if(xkb_key_sym == global_hotkeys[i].key && current_modifiers == global_hotkeys[i].modifiers) {
+ if(key == global_hotkeys[i].key && modifiers == global_hotkeys[i].modifiers) {
puts(global_hotkeys[i].action);
fflush(stdout);
- break;
}
}
-
- return 0;
-}
-
-static int handle_events(struct libinput *libinput, key_mapper *mapper) {
- int result = -1;
- struct libinput_event *event;
-
- if(libinput_dispatch(libinput) < 0)
- return result;
-
- while((event = libinput_get_event(libinput)) != NULL) {
- if(libinput_event_get_type(event) == LIBINPUT_EVENT_KEYBOARD_KEY)
- print_key_event(event, mapper);
-
- libinput_event_destroy(event);
- result = 0;
- }
-
- return result;
-}
-
-static int run_mainloop(struct libinput *libinput, key_mapper *mapper) {
- struct pollfd fds[2] = {
- {
- .fd = libinput_get_fd(libinput),
- .events = POLLIN,
- .revents = 0
- },
- {
- .fd = STDOUT_FILENO,
- .events = 0,
- .revents = 0
- }
- };
-
- if(handle_events(libinput, mapper) != 0) {
- fprintf(stderr, "error: didn't receive device added events. Is this program not running as root?\n");
- return -1;
- }
-
- while(poll(fds, 2, -1) >= 0) {
- if(fds[0].revents & POLLIN)
- handle_events(libinput, mapper);
- if(fds[1].revents & (POLLHUP|POLLERR))
- break;
- }
-
- return 0;
-}
-
-static bool mapper_refresh_keymap(key_mapper *mapper) {
- if(mapper->xkb_keymap != NULL) {
- xkb_keymap_unref(mapper->xkb_keymap);
- mapper->xkb_keymap = NULL;
- }
-
- // TODO:
- struct xkb_rule_names names = {
- NULL, NULL,
- NULL,//keymap_is_default(mapper->layout) ? NULL : mapper->layout,
- NULL,//keymap_is_default(mapper->variant) ? NULL : mapper->variant,
- NULL
- };
- mapper->xkb_keymap = xkb_keymap_new_from_names(mapper->xkb_context, &names, XKB_KEYMAP_COMPILE_NO_FLAGS);
- if(mapper->xkb_keymap == NULL) {
- fprintf(stderr, "error: failed to create XKB keymap.\n");
- return false;
- }
-
- if(mapper->xkb_state != NULL) {
- xkb_state_unref(mapper->xkb_state);
- mapper->xkb_state = NULL;
- }
-
- mapper->xkb_state = xkb_state_new(mapper->xkb_keymap);
- if(mapper->xkb_state == NULL) {
- fprintf(stderr, "error: failed to create XKB state.\n");
- return false;
- }
-
- return true;
}
int main(void) {
- int result = 0;
- struct udev *udev = NULL;
- struct libinput *libinput = NULL;
-
const uid_t user_id = getuid();
if(geteuid() != 0) {
if(setuid(0) == -1) {
@@ -220,53 +45,24 @@ int main(void) {
}
}
- udev = udev_new();
- if(!udev) {
- fprintf(stderr, "error: udev_new failed\n");
- result = 1;
- goto done;
- }
-
- libinput = libinput_udev_create_context(&interface, NULL, udev);
- if(!libinput) {
- fprintf(stderr, "error: libinput_udev_create_context failed\n");
- result = 1;
- goto done;
- }
-
- if(libinput_udev_assign_seat(libinput, "seat0") != 0) {
- fprintf(stderr, "error: libinput_udev_assign_seat with seat0 failed\n");
- result = 1;
- goto done;
+ keyboard_event keyboard_ev;
+ if(!keyboard_event_init(&keyboard_ev, true)) {
+ fprintf(stderr, "Error: failed to setup hotplugging and no keyboard input devices were found\n");
+ setuid(user_id);
+ return 1;
}
- key_mapper mapper;
- mapper.xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
- if(!mapper.xkb_context) {
- fprintf(stderr, "error: xkb_context_new failed\n");
- result = 1;
- goto done;
- }
+ for(;;) {
+ keyboard_event_poll_events(&keyboard_ev, -1, on_key_callback, NULL);
+ if(keyboard_event_stdout_has_failed(&keyboard_ev)) {
+ fprintf(stderr, "Info: stdout closed (parent process likely closed this process), exiting...\n");
+ break;
+ }
- if(!mapper_refresh_keymap(&mapper)) {
- fprintf(stderr, "error: key mapper failed\n");
- result = 1;
- goto done;
- }
- if(run_mainloop(libinput, &mapper) < 0) {
- fprintf(stderr, "error: failed to start main loop\n");
- result = 1;
- goto done;
}
- done:
- if(libinput)
- libinput_unref(libinput);
-
- if(udev)
- udev_unref(udev);
-
+ keyboard_event_deinit(&keyboard_ev);
setuid(user_id);
- return result;
+ return 0;
}
diff --git a/tools/gsr-window-name/main.c b/tools/gsr-window-name/main.c
deleted file mode 100644
index 8ebf1e0..0000000
--- a/tools/gsr-window-name/main.c
+++ /dev/null
@@ -1,187 +0,0 @@
-#include <X11/Xlib.h>
-#include <X11/Xatom.h>
-#include <X11/Xutil.h>
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-typedef enum {
- CAPTURE_TYPE_FOCUSED,
- CAPTURE_TYPE_CURSOR
-} capture_type;
-
-static bool window_has_atom(Display *dpy, Window window, Atom atom) {
- Atom type;
- unsigned long len, bytes_left;
- int format;
- unsigned char *properties = NULL;
- if(XGetWindowProperty(dpy, window, atom, 0, 1024, False, AnyPropertyType, &type, &format, &len, &bytes_left, &properties) < Success)
- return false;
-
- if(properties)
- XFree(properties);
-
- return type != None;
-}
-
-static bool window_is_user_program(Display *dpy, Window window) {
- const Atom net_wm_state_atom = XInternAtom(dpy, "_NET_WM_STATE", False);
- const Atom wm_state_atom = XInternAtom(dpy, "WM_STATE", False);
- return window_has_atom(dpy, window, net_wm_state_atom) || window_has_atom(dpy, window, wm_state_atom);
-}
-
-static Window get_window_at_cursor_position(Display *dpy) {
- Window root_window = None;
- Window window = None;
- int dummy_i;
- unsigned int dummy_u;
- int cursor_pos_x = 0;
- int cursor_pos_y = 0;
- XQueryPointer(dpy, DefaultRootWindow(dpy), &root_window, &window, &dummy_i, &dummy_i, &cursor_pos_x, &cursor_pos_y, &dummy_u);
- return window;
-}
-
-static Window get_focused_window(Display *dpy, capture_type cap_type) {
- const Atom net_active_window_atom = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
- Window focused_window = None;
-
- if(cap_type == CAPTURE_TYPE_FOCUSED) {
- // Atom type = None;
- // int format = 0;
- // unsigned long num_items = 0;
- // unsigned long bytes_left = 0;
- // unsigned char *data = NULL;
- // XGetWindowProperty(dpy, DefaultRootWindow(dpy), net_active_window_atom, 0, 1, False, XA_WINDOW, &type, &format, &num_items, &bytes_left, &data);
-
- // fprintf(stderr, "focused window: %p\n", (void*)data);
-
- // if(type == XA_WINDOW && num_items == 1 && data)
- // return *(Window*)data;
-
- int revert_to = 0;
- XGetInputFocus(dpy, &focused_window, &revert_to);
- if(focused_window && focused_window != DefaultRootWindow(dpy) && window_is_user_program(dpy, focused_window))
- return focused_window;
- }
-
- focused_window = get_window_at_cursor_position(dpy);
- if(focused_window && focused_window != DefaultRootWindow(dpy) && window_is_user_program(dpy, focused_window))
- return focused_window;
-
- return None;
-}
-
-static char* get_window_title(Display *dpy, Window window) {
- const Atom net_wm_name_atom = XInternAtom(dpy, "_NET_WM_NAME", False);
- const Atom wm_name_atom = XInternAtom(dpy, "_NET_WM_NAME", False);
- const Atom utf8_string_atom = XInternAtom(dpy, "UTF8_STRING", False);
-
- Atom type = None;
- int format = 0;
- unsigned long num_items = 0;
- unsigned long bytes_left = 0;
- unsigned char *data = NULL;
- XGetWindowProperty(dpy, window, net_wm_name_atom, 0, 1024, False, utf8_string_atom, &type, &format, &num_items, &bytes_left, &data);
-
- if(type == utf8_string_atom && format == 8 && data)
- return (char*)data;
-
- type = None;
- format = 0;
- num_items = 0;
- bytes_left = 0;
- data = NULL;
- XGetWindowProperty(dpy, window, wm_name_atom, 0, 1024, False, 0, &type, &format, &num_items, &bytes_left, &data);
-
- if((type == XA_STRING || type == utf8_string_atom) && data)
- return (char*)data;
-
- return NULL;
-}
-
-static const char* strip(const char *str, int *len) {
- int str_len = strlen(str);
- for(int i = 0; i < str_len; ++i) {
- if(str[i] != ' ') {
- str += i;
- str_len -= i;
- break;
- }
- }
-
- for(int i = str_len - 1; i >= 0; --i) {
- if(str[i] != ' ') {
- str_len = i + 1;
- break;
- }
- }
-
- *len = str_len;
- return str;
-}
-
-static void print_str_strip(const char *str) {
- int len = 0;
- str = strip(str, &len);
- printf("%.*s", len, str);
-}
-
-static int x11_ignore_error(Display *dpy, XErrorEvent *error_event) {
- (void)dpy;
- (void)error_event;
- return 0;
-}
-
-static void usage(void) {
- fprintf(stderr, "usage: gsr-window-name <focused|cursor>\n");
- fprintf(stderr, "options:\n");
- fprintf(stderr, " focused The class/name of the focused window is returned. If no window is focused then the window beneath the cursor is returned instead\n");
- fprintf(stderr, " cursor The class/name of the window beneath the cursor is returned\n");
- exit(1);
-}
-
-int main(int argc, char **argv) {
- if(argc != 2)
- usage();
-
- const char *cap_type_str = argv[1];
- capture_type cap_type = CAPTURE_TYPE_FOCUSED;
- if(strcmp(cap_type_str, "focused") == 0) {
- cap_type = CAPTURE_TYPE_FOCUSED;
- } else if(strcmp(cap_type_str, "cursor") == 0) {
- cap_type = CAPTURE_TYPE_CURSOR;
- } else {
- fprintf(stderr, "error: invalid option '%s', expected either 'focused' or 'cursor'\n", cap_type_str);
- usage();
- }
-
- Display *dpy = XOpenDisplay(NULL);
- if(!dpy) {
- fprintf(stderr, "Error: failed to connect to the X11 server\n");
- exit(1);
- }
-
- XSetErrorHandler(x11_ignore_error);
-
- const Window focused_window = get_focused_window(dpy, cap_type);
- if(focused_window == None)
- exit(2);
-
- // Window title is not always ideal (for example for a browser), but for games its pretty much required
- char *window_title = get_window_title(dpy, focused_window);
- if(window_title) {
- print_str_strip(window_title);
- exit(0);
- }
-
- XClassHint class_hint = {0};
- XGetClassHint(dpy, focused_window, &class_hint);
- if(class_hint.res_class) {
- print_str_strip(class_hint.res_class);
- exit(0);
- }
-
- return 2;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 16:09:40 +0000