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start factoring Key actions into functions

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This commit is contained in:
Devin J. Pohly 2020-04-11 19:05:27 -05:00
parent e385acf69d
commit df1aaa4d15
2 changed files with 50 additions and 21 deletions
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7
config.h
View file

@ -5,3 +5,10 @@ static const struct xkb_rule_names xkb_rules = {
.variant = NULL,
.options = "ctrl:nocaps,altwin:swap_lalt_lwin,terminate:ctrl_alt_bksp",
};
#define MODKEY WLR_MODIFIER_ALT
static const Key keys[] = {
{ MODKEY, XKB_KEY_Escape, quit, {0} },
{ MODKEY, XKB_KEY_F1, focusnext, {0} },
};

64
dwl.c
View file

@ -94,6 +94,23 @@ struct dwl_keyboard {
struct wl_listener key;
};
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
} Arg;
typedef struct {
uint32_t mod;
xkb_keysym_t keysym;
void (*func)(struct dwl_server *, const Arg *);
const Arg arg;
} Key;
static void focusnext(struct dwl_server *, const Arg *);
static void quit(struct dwl_server *, const Arg *);
#include "config.h"
static void focus_view(struct dwl_view *view, struct wlr_surface *surface) {
@ -151,31 +168,37 @@ static void keyboard_handle_modifiers(
&keyboard->device->keyboard->modifiers);
}
static bool handle_keybinding(struct dwl_server *server, xkb_keysym_t sym) {
static void quit(struct dwl_server *server, const Arg *unused) {
wl_display_terminate(server->wl_display);
}
static void focusnext(struct dwl_server *server, const Arg *unused) {
/* Cycle to the next view */
if (wl_list_length(&server->views) < 2) {
return;
}
struct dwl_view *current_view = wl_container_of(
server->views.next, current_view, link);
struct dwl_view *next_view = wl_container_of(
current_view->link.next, next_view, link);
focus_view(next_view, next_view->xdg_surface->surface);
/* Move the previous view to the end of the list */
wl_list_remove(&current_view->link);
wl_list_insert(server->views.prev, &current_view->link);
}
static bool handle_keybinding(struct dwl_server *server, uint32_t mods, xkb_keysym_t sym) {
/*
* Here we handle compositor keybindings. This is when the compositor is
* processing keys, rather than passing them on to the client for its own
* processing.
*
* This function assumes Alt is held down.
*/
switch (sym) {
case XKB_KEY_Escape:
wl_display_terminate(server->wl_display);
quit(server, NULL);
break;
case XKB_KEY_F1:
/* Cycle to the next view */
if (wl_list_length(&server->views) < 2) {
break;
}
struct dwl_view *current_view = wl_container_of(
server->views.next, current_view, link);
struct dwl_view *next_view = wl_container_of(
current_view->link.next, next_view, link);
focus_view(next_view, next_view->xdg_surface->surface);
/* Move the previous view to the end of the list */
wl_list_remove(&current_view->link);
wl_list_insert(server->views.prev, &current_view->link);
focusnext(server, NULL);
break;
default:
return false;
@ -200,12 +223,11 @@ static void keyboard_handle_key(
keyboard->device->keyboard->xkb_state, keycode, &syms);
bool handled = false;
uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
if ((modifiers & WLR_MODIFIER_ALT) && event->state == WLR_KEY_PRESSED) {
/* If alt is held down and this button was _pressed_, we attempt to
* process it as a compositor keybinding. */
uint32_t mods = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
if (event->state == WLR_KEY_PRESSED) {
/* On _press_, attempt to process a compositor keybinding. */
for (int i = 0; i < nsyms; i++) {
handled = handle_keybinding(server, syms[i]);
handled = handle_keybinding(server, mods, syms[i]) || handled;
}
}