mowc

commit b8396e4c9f02150caa04d3762ac58bed0416b737
parent c464cf5b33932465447b047ab2bba046af0131b5
Author: Nihal Jere <nihal@nihaljere.xyz>
Date:   Sun, 27 Jun 2021 14:53:00 -0500

mowc: volume button shows and hides overlay

Diffstat:
M
mowc.c
 | 
60
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-

1 file changed, 59 insertions(+), 1 deletion(-)
diff --git a/mowc.c b/mowc.c
@@ -2,12 +2,16 @@
 #include <stdlib.h>
 #include <string.h>
 #include <swc.h>
+#include <unistd.h>
 #include <wayland-server.h>
 #include <xkbcommon/xkbcommon.h>
 
+#define OVERLAY_PROGRAM MOWC_LIBEXEC "/overlay"
+
 static struct wl_display *display;
 static struct swc_screen *curscreen;
 static struct swc_window *curwindow;
+static struct swc_window *overlay;
 
 void
 destroy(void *data)
@@ -15,8 +19,24 @@ destroy(void *data)
 	curwindow = NULL;
 }
 
+void
+app_id_changed(void *data)
+{
+	struct swc_window *window = data;
+	if (!overlay && window->app_id && strcmp(window->app_id, "overlay") == 0) {
+		overlay = window;
+		swc_window_set_geometry(overlay, &curscreen->usable_geometry);
+		if (curwindow == window)
+			curwindow = NULL;
+
+		swc_window_hide(window);
+		return;
+	}
+}
+
 struct swc_window_handler window_handler = {
 	.destroy = destroy,
+	.app_id_changed = app_id_changed,
 };
 
 void
@@ -29,13 +49,15 @@ new_screen(struct swc_screen *screen)
 void
 new_window(struct swc_window *window)
 {
+	fprintf(stderr, "new window: %s, %s!\n", window->app_id, window->title);
+
 	if (curwindow)
 		swc_window_close(curwindow);
 
 	curwindow = window;
 	swc_window_set_geometry(window, &curscreen->usable_geometry);
 	swc_window_focus(window);
-	swc_window_set_handler(window, &window_handler, NULL);
+	swc_window_set_handler(window, &window_handler, window);
 	swc_window_show(window);
 }
 
@@ -77,6 +99,36 @@ power_handler(void *data, uint32_t time, uint32_t value, uint32_t state)
 	justawoke = true;
 }
 
+bool overlay_active = false;
+
+static void
+overlay_handler(void *data, uint32_t time, uint32_t value, uint32_t state)
+{
+	if (!state) // ignore releases
+		return;
+
+	if (overlay_active) {
+		overlay_active = false;
+		swc_window_hide(overlay);
+	} else {
+		overlay_active = true;
+		swc_window_show(overlay);
+	}
+}
+
+static int
+launchchild(char *prog)
+{
+	pid_t pid = fork();
+	if (pid < 0) {
+		return -1;
+	} else if (pid == 0) {
+		execl(prog, prog, NULL);
+	}
+	return 0;
+}
+
+
 int
 main(int argc, char *argv[])
 {
@@ -96,6 +148,12 @@ main(int argc, char *argv[])
 		return 1;
 
 	swc_add_binding(SWC_BINDING_KEY, 0, XKB_KEY_XF86PowerOff, power_handler, NULL);
+	swc_add_binding(SWC_BINDING_KEY, 0, XKB_KEY_XF86AudioLowerVolume, overlay_handler, NULL);
+
+	if (launchchild(OVERLAY_PROGRAM) < 0) {
+		fprintf(stderr, "failed to launch overlay\n");
+		return 1;
+	}
 
 	event_loop = wl_display_get_event_loop(display);
 	wl_display_run(display);