PDF viewer to run until and only when it has existing windows

I.e. not to close whole application when one of the windows
is closed.

diff --git a/clients/view.c b/clients/view.c
index 8ecce8a..1bb9b9b 100644 (file)
--- a/clients/view.c
+++ b/clients/view.c
@@ -49,6 +49,7 @@ struct view {
        PopplerDocument *document;
        int page;
        int fullscreen;
+       int *view_counter;
 };
 
 static void
@@ -167,6 +168,23 @@ fullscreen_handler(struct window *window, void *data)
 }
 
 static void
+close_handler(struct window *window, void *data)
+{
+       struct view *view = data;
+
+       *view->view_counter -= 1;
+       if (*view->view_counter == 0)
+               display_exit(view->display);
+
+       widget_destroy(view->widget);
+       window_destroy(view->window);
+       if (view->document)
+               g_object_unref(view->document);
+
+       free(view);
+}
+
+static void
 key_handler(struct window *window, struct input *input, uint32_t time,
            uint32_t key, uint32_t unicode,
            enum wl_keyboard_key_state state, void *data)
@@ -204,7 +222,7 @@ keyboard_focus_handler(struct window *window,
 
 static struct view *
 view_create(struct display *display,
-           uint32_t key, const char *filename, int fullscreen)
+           uint32_t key, const char *filename, int fullscreen, int *view_counter)
 {
        struct view *view;
        gchar *basename;
@@ -244,6 +262,7 @@ view_create(struct display *display,
        window_set_keyboard_focus_handler(view->window,
                                          keyboard_focus_handler);
        window_set_fullscreen_handler(view->window, fullscreen_handler);
+       window_set_close_handler(view->window, close_handler);
 
        widget_set_button_handler(view->widget, button_handler);
        widget_set_resize_handler(view->widget, resize_handler);
@@ -255,6 +274,8 @@ view_create(struct display *display,
        window_set_fullscreen(view->window, view->fullscreen);
 
        window_schedule_resize(view->window, 500, 400);
+       view->view_counter = view_counter;
+       *view_counter += 1;
 
        return view;
 }
@@ -270,6 +291,7 @@ main(int argc, char *argv[])
 {
        struct display *d;
        int i;
+       int view_counter = 0;
 
        g_type_init();
 
@@ -283,9 +305,10 @@ main(int argc, char *argv[])
        }
 
        for (i = 1; i < argc; i++)
-               view_create (d, i, argv[i], option_fullscreen);
+               view_create (d, i, argv[i], option_fullscreen, &view_counter);
 
-       display_run(d);
+       if (view_counter > 0)
+               display_run(d);
 
        return 0;
 }