Add wmenu-run executable

menu.c

@@ -529,6 +529,8 @@ void menu_keypress(struct menu *menu, enum wl_keyboard_key_state key_state,
 			puts(menu->input);
 			fflush(stdout);
 			menu->exit = true;
+		} else if (menu->callback) {
+			menu->callback(menu);
 		} else {
 			char *text = menu->sel ? menu->sel->text : menu->input;
 			puts(text);

menu.h

@@ -68,6 +68,7 @@ struct menu {
 	struct item *sel;         // selected item
 	struct page *pages;       // list of pages
 
+	void (*callback)(struct menu *menu);
 	bool exit;
 	bool failure;
 };

meson.build

@@ -38,12 +38,35 @@ install_data('wmenu_run', install_dir: get_option('bindir'))
 executable(
 	'wmenu',
 	files(
-		'main.c',
 		'menu.c',
 		'pango.c',
 		'pool-buffer.c',
 		'render.c',
 		'wayland.c',
+		'wmenu.c',
+	),
+	dependencies: [
+		cairo,
+		client_protos,
+		pango,
+		pangocairo,
+		rt,
+		wayland_client,
+		wayland_protos,
+		xkbcommon,
+	],
+	install: true,
+)
+
+executable(
+	'wmenu-run',
+	files(
+		'menu.c',
+		'pango.c',
+		'pool-buffer.c',
+		'render.c',
+		'wayland.c',
+		'wmenu-run.c',
 	),
 	dependencies: [
 		cairo,

wayland.c

@@ -128,6 +128,11 @@ struct xkb_state *context_get_xkb_state(struct wl_context *context) {
 	return context->keyboard->state;
 }
 
+// Returns the XDG activation object for the context.
+struct xdg_activation_v1 *context_get_xdg_activation(struct wl_context *context) {
+	return context->activation;
+}
+
 // Retrieves pasted text from a Wayland data offer.
 bool context_paste(struct wl_context *context) {
 	if (!context->data_offer) {

wayland.h

@@ -13,6 +13,7 @@ struct pool_buffer *context_get_current_buffer(struct wl_context *context);
 struct pool_buffer *context_get_next_buffer(struct wl_context *context, int scale);
 struct wl_surface *context_get_surface(struct wl_context *context);
 struct xkb_state *context_get_xkb_state(struct wl_context *context);
+struct xdg_activation_v1 *context_get_xdg_activation(struct wl_context *context);
 bool context_paste(struct wl_context *context);
 
 #endif

wmenu-run.c

@@ -0,0 +1,70 @@
+#define _POSIX_C_SOURCE 200809L
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "menu.h"
+#include "wayland.h"
+#include "xdg-activation-v1-client-protocol.h"
+
+static void read_items(struct menu *menu) {
+	char buf[sizeof menu->input];
+	while (fgets(buf, sizeof buf, stdin)) {
+		char *p = strchr(buf, '\n');
+		if (p) {
+			*p = '\0';
+		}
+		menu_add_item(menu, strdup(buf));
+	}
+}
+
+struct executable {
+	struct menu *menu;
+	char *name;
+};
+
+static void activation_token_done(void *data, struct xdg_activation_token_v1 *activation_token,
+	const char *token) {
+	struct executable *exe = data;
+	xdg_activation_token_v1_destroy(activation_token);
+	menu_destroy(exe->menu);
+
+	setenv("XDG_ACTIVATION_TOKEN", token, true);
+	execlp(exe->name, exe->name, NULL);
+
+	fprintf(stderr, "Failed to execute selection: %s\n", strerror(errno));
+	free(exe->name);
+	free(exe);
+	exit(EXIT_FAILURE);
+}
+
+static const struct xdg_activation_token_v1_listener activation_token_listener = {
+	.done = activation_token_done,
+};
+
+static void exec(struct menu *menu) {
+	if (!menu->sel) {
+		return;
+	}
+
+	struct executable *exe = calloc(1, sizeof(struct executable));
+	exe->menu = menu;
+	exe->name = strdup(menu->sel->text);
+
+	struct xdg_activation_v1 *activation = context_get_xdg_activation(menu->context);
+	struct xdg_activation_token_v1 *activation_token = xdg_activation_v1_get_activation_token(activation);
+	xdg_activation_token_v1_set_surface(activation_token, context_get_surface(menu->context));
+	xdg_activation_token_v1_add_listener(activation_token, &activation_token_listener, exe);
+	xdg_activation_token_v1_commit(activation_token);
+}
+
+int main(int argc, char *argv[]) {
+	struct menu *menu = menu_create();
+	menu->callback = exec;
+	menu_getopts(menu, argc, argv);
+	read_items(menu);
+	int status = menu_run(menu);
+	menu_destroy(menu);
+	return status;
+}