browser_window: Add an event for page info state change

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

desktop/browser_window.c

@@ -818,6 +818,11 @@ static nserror browser_window_content_ready(struct browser_window *bw)
 		browser_window_create_iframes(bw, html_get_iframe(bw->current_content));
 	}
 
+	/* Indicate page status may have changed */
+	if (res == NSERROR_OK) {
+		res = guit->window->event(bw->window, GW_EVENT_PAGE_INFO_CHANGE);
+	}
+
 	return res;
 }
 

include/netsurf/window.h

@@ -119,6 +119,12 @@ enum gui_window_event {
 	 * selection started
 	 */
 	GW_EVENT_START_SELECTION,
+
+	/**
+	 * Page status has changed and so the padlock should be
+	 * updated.
+	 */
+	GW_EVENT_PAGE_INFO_CHANGE,
 };
 
 /**