commit 450d43ff44f2ce39e0d74f72dc35447647faa74c
parent e73316bd7c1a7e21ed5e2c948c79273316efc502
Author: Stacy Harper <contact@stacyharper.net>
Date: Thu, 26 Aug 2021 13:29:40 +0200
Handle hide and show signals
Diffstat:
| M | drw.c | | | 5 | +++-- |
| M | drw.h | | | 1 | + |
| M | main.c | | | 57 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++-- |
3 files changed, 59 insertions(+), 4 deletions(-)
diff --git a/drw.c b/drw.c
@@ -29,8 +29,8 @@ static struct wl_callback_listener frame_listener = {
void
drwsurf_flip(struct drwsurf *ds) {
- struct wl_callback *cb = wl_surface_frame(ds->surf);
- wl_callback_add_listener(cb, &frame_listener, (void *)ds);
+ ds->cb = wl_surface_frame(ds->surf);
+ wl_callback_add_listener(ds->cb, &frame_listener, (void *)ds);
wl_surface_attach(ds->surf, ds->buf, 0, 0);
wl_surface_commit(ds->surf);
@@ -40,6 +40,7 @@ void
surface_frame_callback(void *data, struct wl_callback *cb, uint32_t time) {
struct drwsurf *ds = (struct drwsurf *)data;
wl_callback_destroy(cb);
+ ds->cb = NULL;
drwsurf_flip(ds);
}
diff --git a/drw.h b/drw.h
@@ -15,6 +15,7 @@ struct drwsurf {
struct wl_surface *surf;
struct wl_buffer *buf;
struct wl_shm *shm;
+ struct wl_callback *cb;
unsigned char *pool_data;
cairo_t *cairo;
diff --git a/main.c b/main.c
@@ -7,6 +7,7 @@
#include <sys/mman.h>
#include <wayland-client.h>
#include <wchar.h>
+#include <unistd.h>
#include "keyboard.h"
#include "config.h"
@@ -42,6 +43,7 @@ static uint32_t anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
static bool run_display = true;
static int cur_x = -1, cur_y = -1;
static struct kbd keyboard;
+static uint32_t height;
/* event handler prototypes */
static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
@@ -320,12 +322,54 @@ usage(char *argv0)
fprintf(stderr, " -fn [font] - Set font (e.g: DejaVu Sans 20)\n");
}
+void
+freeze(int sigint)
+{
+ signal(SIGUSR1, freeze);
+ if (!layer_surface) {
+ return;
+ }
+
+ zwlr_layer_surface_v1_destroy(layer_surface);
+ wl_surface_destroy(draw_surf.surf);
+ layer_surface = NULL;
+ if (draw_surf.cb) {
+ wl_callback_destroy(draw_surf.cb);
+ draw_surf.cb = NULL;
+ }
+}
+
+void
+unfreeze(int sigint)
+{
+ signal(SIGUSR2, unfreeze);
+ if (layer_surface) {
+ return;
+ }
+
+ wl_display_sync(display);
+
+ draw_surf.surf = wl_compositor_create_surface(compositor);;
+ layer_surface = zwlr_layer_shell_v1_get_layer_surface(
+ layer_shell, draw_surf.surf, wl_output, layer, namespace);
+
+ zwlr_layer_surface_v1_set_size(layer_surface, 0, height);
+ zwlr_layer_surface_v1_set_anchor(layer_surface, anchor);
+ zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
+ zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface, false);
+ zwlr_layer_surface_v1_add_listener(layer_surface, &layer_surface_listener, NULL);
+ wl_surface_commit(draw_surf.surf);
+
+ wl_display_roundtrip(display);
+ drwsurf_flip(&draw_surf);
+}
+
int
main(int argc, char **argv) {
/* parse command line arguments */
char *layer_names_list = NULL;
const char *fc_font_pattern = NULL;
- uint32_t height = KBD_PIXEL_HEIGHT;
+ height = KBD_PIXEL_HEIGHT;
char *tmp;
if ((tmp = getenv("WVKBD_LAYERS")))
@@ -430,7 +474,16 @@ main(int argc, char **argv) {
wl_display_roundtrip(display);
drwsurf_flip(&draw_surf);
- while (wl_display_dispatch(display) != -1 && run_display) {
+ signal(SIGUSR1, freeze);
+ signal(SIGUSR2, unfreeze);
+
+ while (run_display) {
+ while (wl_display_dispatch(display) != -1 && layer_surface) {
+ }
+ wl_display_roundtrip(display);
+ while (run_display && !layer_surface) {
+ sleep(1);
+ }
}
if (fc_font_pattern != default_font) {
