From f7a62fce4890d9990a5761e6c6667b2c7eb55a92 Mon Sep 17 00:00:00 2001
From: Pim van Pelt <pim@ipng.nl>
Date: Sat, 2 Dec 2017 14:18:54 +0100
Subject: [PATCH] Add screen_widget_broadcast()

---
 include/screen.h |  4 ++++
 src/screen.c     | 13 +++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/screen.h b/include/screen.h
index 20fcba6..7c47a9e 100644
--- a/include/screen.h
+++ b/include/screen.h
@@ -27,6 +27,10 @@ struct widget_t *screen_widget_add_from_file(struct screen_t *s, char *fn);
 bool screen_widget_destroy(struct screen_t *s, struct widget_t **w);
 
 uint16_t screen_get_num_widgets(struct screen_t *s);
+
 struct widget_t *screen_widget_find_by_xy(struct screen_t *s, uint16_t x, uint16_t y);
 
+void screen_widget_broadcast(struct screen_t *s, int ev, void *ev_data);
+
+
 #endif //__SCREEN_H
diff --git a/src/screen.c b/src/screen.c
index 62e51ab..45cc7d9 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -155,6 +155,19 @@ struct widget_t *screen_widget_find_by_xy(struct screen_t *s, uint16_t x, uint16
   return NULL;
 }
 
+void screen_widget_broadcast(struct screen_t *s, int ev, void *ev_data) {
+  struct widget_list_t *wl;
+
+  if (!s)
+    return NULL;
+
+  SLIST_FOREACH(wl, &s->widget_entries, entries) {
+    if (wl->widget->handler)
+      wl->widget->handler(ev, wl->widget, ev_data);
+  }
+  return NULL;
+}
+
 void screen_widget_set_handler(struct screen_t *s, widget_event_fn handler) {
   if (!s)
     return;