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Implement key repeat for pressed key bindings

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Each sway_keyboard is provided with a wayland timer event source.
When a valid keypress binding has been found, a callback to
handle_keyboard_repeat is set. Any key event will either clear
the callback or (if the new key event is a valid keypress binding)
delay the callback again.
This commit is contained in:
frsfnrrg 2018-07-29 16:25:43 -04:00
parent ca8f177e14
commit e33dfbfa75
2 changed files with 43 additions and 0 deletions
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5
include/sway/input/keyboard.h
View file

@ -38,6 +38,11 @@ struct sway_keyboard {
struct sway_shortcut_state state_keysyms_raw;
struct sway_shortcut_state state_keycodes;
struct sway_binding *held_binding;
struct wl_event_source *key_repeat_source;
struct sway_binding *repeat_binding;
int key_repeat_initial_delay; // first key repeat event delay, in ms
int key_repeat_step_delay; // subsequent repeat delay, in ms
};
struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,

38
sway/input/keyboard.c
View file

@ -264,6 +264,7 @@ static void handle_keyboard_key(struct wl_listener *listener, void *data) {
}
// Identify and execute active pressed binding
struct sway_binding *next_repeat_binding = NULL;
if (event->state == WLR_KEY_PRESSED) {
struct sway_binding *binding_pressed = NULL;
get_active_binding(&keyboard->state_keycodes,
@ -279,6 +280,21 @@ static void handle_keyboard_key(struct wl_listener *listener, void *data) {
if (binding_pressed) {
seat_execute_command(seat, binding_pressed);
handled = true;
next_repeat_binding = binding_pressed;
}
}
// Set up (or clear) keyboard repeat for a pressed binding
if (next_repeat_binding) {
keyboard->repeat_binding = next_repeat_binding;
if (wl_event_source_timer_update(keyboard->key_repeat_source,
keyboard->key_repeat_initial_delay) < 0) {
wlr_log(WLR_DEBUG, "failed to set key repeat timer");
}
} else if (keyboard->repeat_binding) {
keyboard->repeat_binding = NULL;
if (wl_event_source_timer_update(keyboard->key_repeat_source, 0) < 0) {
wlr_log(WLR_DEBUG, "failed to disarm key repeat timer");
}
}
@ -303,6 +319,22 @@ static void handle_keyboard_key(struct wl_listener *listener, void *data) {
transaction_commit_dirty();
}
static int handle_keyboard_repeat(void *data) {
struct sway_keyboard *keyboard = (struct sway_keyboard *)data;
if (keyboard->repeat_binding) {
// We queue the next event first, as the command might cancel it
if (wl_event_source_timer_update(keyboard->key_repeat_source,
keyboard->key_repeat_step_delay) < 0) {
wlr_log(WLR_DEBUG, "failed to update key repeat timer");
}
seat_execute_command(keyboard->seat_device->sway_seat,
keyboard->repeat_binding);
transaction_commit_dirty();
}
return 0;
}
static void handle_keyboard_modifiers(struct wl_listener *listener,
void *data) {
struct sway_keyboard *keyboard =
@ -328,6 +360,11 @@ struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
wl_list_init(&keyboard->keyboard_key.link);
wl_list_init(&keyboard->keyboard_modifiers.link);
keyboard->key_repeat_source = wl_event_loop_add_timer(server.wl_event_loop,
handle_keyboard_repeat, keyboard);
keyboard->key_repeat_initial_delay = 660;
keyboard->key_repeat_step_delay = 40;
return keyboard;
}
@ -441,5 +478,6 @@ void sway_keyboard_destroy(struct sway_keyboard *keyboard) {
}
wl_list_remove(&keyboard->keyboard_key.link);
wl_list_remove(&keyboard->keyboard_modifiers.link);
wl_event_source_remove(keyboard->key_repeat_source);
free(keyboard);
}