Bind Ctrl+Page_Down and Ctrl+Page_Up to switch active tab

src/tabs/wig-tab-list.c

@@ -399,6 +399,18 @@ void wig_tab_list_set_active(WigTabList *self, WigTab *tab)
   g_object_notify_by_pspec(G_OBJECT(self), props[PROP_ACTIVE_TAB]);
 }
 
+void wig_tab_switch_active(WigTabList *self, gint offset)
+{
+  WigTab *tab = wig_tab_list_get_active(self);
+  guint idx = wig_tab_list_index_of(self, tab);
+  if (idx == GTK_INVALID_LIST_POSITION)
+    return;
+  guint n_tabs = wig_tab_list_get_n_tabs(self);
+  idx = (idx + n_tabs + (guint)offset) % n_tabs;
+  tab = wig_tab_list_get_nth(self, idx);
+  wig_tab_list_set_active(self, tab);
+}
+
 /* Returns: (transfer full): the selected tabs in list order.  They are reffed so
  * that callers can move or detach them while walking the result. */
 GPtrArray *wig_tab_list_get_selected(WigTabList *self)

src/tabs/wig-tab-list.h

@@ -57,6 +57,7 @@ WigTab *wig_tab_list_get_by_id(WigTabList *self, guint id);
 
 WigTab *wig_tab_list_get_active(WigTabList *self);
 void wig_tab_list_set_active(WigTabList *self, WigTab *tab);
+void wig_tab_switch_active(WigTabList *self, gint offset);
 
 GSimpleActionGroup *wig_tab_list_get_action_group(WigTabList *self);
 

src/wig-application.c

@@ -743,6 +743,8 @@ static void wig_application_startup(GApplication *application)
     { "app.new-window", { "<Primary>n", NULL } },
     { "app.quit", { "<Primary>q", NULL } },
     { "win.close-tab", { "<Primary>w", NULL } },
+    { "win.next-tab", { "<Primary>Page_Down", NULL } },
+    { "win.prev-tab", { "<Primary>Page_Up", NULL } },
     { "win.reload", { "<Primary>r", "F5", NULL } },
     { "win.reload-bypass-cache", { "<Primary><Shift>r", "<Primary>F5", NULL } },
     { "win.toggle-fullscreen", { "F11", NULL } },

src/wig-window.c

@@ -362,6 +362,18 @@ static void wig_window_new_tab(GSimpleAction *action, GVariant *parameter, gpoin
   gtk_widget_grab_focus(win->url_entry);
 }
 
+static void wig_window_next_tab(GSimpleAction *action, GVariant *parameter, gpointer user_data)
+{
+  WigWindow *win = WIG_WINDOW(user_data);
+  wig_tab_switch_active(win->tab_list, 1);
+}
+
+static void wig_window_prev_tab(GSimpleAction *action, GVariant *parameter, gpointer user_data)
+{
+  WigWindow *win = WIG_WINDOW(user_data);
+  wig_tab_switch_active(win->tab_list, -1);
+}
+
 static void wig_window_focus_entry(GSimpleAction *action, GVariant *parameter, gpointer user_data)
 {
   WigWindow *win = WIG_WINDOW(user_data);
@@ -731,6 +743,8 @@ static void wig_window_duplicate_active_tab(GSimpleAction *action, GVariant *par
 
 static const GActionEntry actions[] = {
   { "new-tab", wig_window_new_tab },
+  { "next-tab", wig_window_next_tab },
+  { "prev-tab", wig_window_prev_tab },
   { "focus-entry", wig_window_focus_entry },
   { "find", wig_window_find },
   { "find-next", wig_window_find_next },