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Add ability to override the focus chain for a container explicitly
2001-03-22 Havoc Pennington <hp@redhat.com> * gtk/gtkcontainer.c (gtk_container_set_focus_chain): (gtk_container_unset_focus_chain): Add ability to override the focus chain for a container explicitly
This commit is contained in:
Havoc Pennington
Havoc Pennington
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23b98cc1ec
@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -1,3 +1,9 @@
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2001-03-22 Havoc Pennington <hp@redhat.com>
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* gtk/gtkcontainer.c (gtk_container_set_focus_chain):
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(gtk_container_unset_focus_chain): Add ability to override the
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focus chain for a container explicitly
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Thu Mar 22 13:01:44 2001 Tim Janik <timj@gtk.org>
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* gtk/gtklabel.[hc]: some cleanups, fixed mnemonic_widget handling,
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@ -42,6 +42,7 @@ enum {
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SET_FOCUS_CHILD,
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_BORDER_WIDTH,
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@ -626,6 +627,12 @@ gtk_container_destroy (GtkObject *object)
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gtk_container_dequeue_resize_handler (container);
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if (container->resize_widgets)
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gtk_container_clear_resize_widgets (container);
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/* do this before walking child widgets, to avoid
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* removing children from focus chain one by one.
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*/
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if (container->has_focus_chain)
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gtk_container_unset_focus_chain (container);
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gtk_container_foreach (container, (GtkCallback) gtk_widget_destroy, NULL);
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@ -1415,13 +1422,48 @@ gtk_container_real_set_focus_child (GtkContainer *container,
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}
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}
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static GList*
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get_focus_chain (GtkContainer *container)
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{
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GList *chain;
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chain = g_object_get_data (G_OBJECT (container), "gtk-container-focus-chain");
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return chain;
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}
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static GList*
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filter_unfocusable (GtkContainer *container,
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GList *list)
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{
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GList *tmp_list;
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GList *tmp_list2;
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tmp_list = list;
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while (tmp_list)
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{
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if (GTK_WIDGET_IS_SENSITIVE (tmp_list->data) &&
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GTK_WIDGET_DRAWABLE (tmp_list->data) &&
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(GTK_IS_CONTAINER (tmp_list->data) || GTK_WIDGET_CAN_FOCUS (tmp_list->data)))
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tmp_list = tmp_list->next;
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else
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{
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tmp_list2 = tmp_list;
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tmp_list = tmp_list->next;
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list = g_list_remove_link (list, tmp_list2);
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g_list_free_1 (tmp_list2);
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}
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}
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return list;
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}
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static gboolean
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gtk_container_real_focus (GtkContainer *container,
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GtkDirectionType direction)
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{
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GList *children;
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GList *tmp_list;
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GList *tmp_list2;
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gint return_val;
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g_return_val_if_fail (container != NULL, FALSE);
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@ -1445,41 +1487,44 @@ gtk_container_real_focus (GtkContainer *container,
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}
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else
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{
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/* Get a list of the containers children
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/* Get a list of the containers children, allowing focus
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* chain to override.
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*/
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children = NULL;
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gtk_container_forall (container,
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gtk_container_children_callback,
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&children);
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children = g_list_reverse (children);
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/* children = gtk_container_children (container); */
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if (container->has_focus_chain)
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{
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GList *chain;
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chain = get_focus_chain (container);
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children = g_list_copy (chain);
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}
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else
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{
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children = NULL;
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gtk_container_forall (container,
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gtk_container_children_callback,
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&children);
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children = g_list_reverse (children);
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}
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if (children)
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{
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/* Remove any children which are inappropriate for focus movement
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*/
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tmp_list = children;
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while (tmp_list)
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{
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if (GTK_WIDGET_IS_SENSITIVE (tmp_list->data) &&
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GTK_WIDGET_DRAWABLE (tmp_list->data) &&
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(GTK_IS_CONTAINER (tmp_list->data) || GTK_WIDGET_CAN_FOCUS (tmp_list->data)))
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tmp_list = tmp_list->next;
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else
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{
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tmp_list2 = tmp_list;
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tmp_list = tmp_list->next;
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children = g_list_remove_link (children, tmp_list2);
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g_list_free_1 (tmp_list2);
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}
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}
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children = filter_unfocusable (container, children);
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switch (direction)
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{
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case GTK_DIR_TAB_FORWARD:
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case GTK_DIR_TAB_BACKWARD:
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return_val = gtk_container_focus_tab (container, children, direction);
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if (container->has_focus_chain)
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{
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if (direction == GTK_DIR_TAB_BACKWARD)
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children = g_list_reverse (children);
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return_val = gtk_container_focus_move (container, children, direction);
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}
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else
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return_val = gtk_container_focus_tab (container, children, direction);
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break;
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case GTK_DIR_UP:
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case GTK_DIR_DOWN:
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@ -1864,7 +1909,7 @@ gtk_container_focus_move (GtkContainer *container,
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if (!child)
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continue;
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if (focus_child)
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{
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if (focus_child == child)
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@ -1877,7 +1922,8 @@ gtk_container_focus_move (GtkContainer *container,
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return TRUE;
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}
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}
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else if (GTK_WIDGET_DRAWABLE (child))
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else if (GTK_WIDGET_DRAWABLE (child) &&
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gtk_widget_is_ancestor (child, GTK_WIDGET (container)))
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{
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if (GTK_IS_CONTAINER (child))
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{
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@ -1906,6 +1952,108 @@ gtk_container_children_callback (GtkWidget *widget,
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*children = g_list_prepend (*children, widget);
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}
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/* Hack-around */
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#define g_signal_handlers_disconnect_by_func(obj, func, data) g_signal_handlers_disconnect_matched (obj, G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA, 0, 0, NULL, func, data)
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static void
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chain_widget_destroyed (GtkWidget *widget,
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gpointer user_data)
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{
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GtkContainer *container;
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GList *chain;
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container = GTK_CONTAINER (user_data);
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chain = g_object_get_data (G_OBJECT (container),
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"gtk-container-focus-chain");
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chain = g_list_remove (chain, widget);
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g_signal_handlers_disconnect_by_func (G_OBJECT (widget),
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chain_widget_destroyed,
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user_data);
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g_object_set_data (G_OBJECT (container),
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"gtk-container-focus-chain",
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chain);
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}
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void
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gtk_container_set_focus_chain (GtkContainer *container,
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GList *focusable_widgets)
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{
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GList *chain;
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GList *tmp_list;
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g_return_if_fail (GTK_IS_CONTAINER (container));
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if (container->has_focus_chain)
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gtk_container_unset_focus_chain (container);
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container->has_focus_chain = TRUE;
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chain = NULL;
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tmp_list = focusable_widgets;
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while (tmp_list != NULL)
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{
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g_return_if_fail (GTK_IS_WIDGET (tmp_list->data));
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/* In principle each widget in the chain should be a descendant
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* of the container, but we don't want to check that here, it's
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* expensive and also it's allowed to set the focus chain before
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* you pack the widgets, or have a widget in the chain that isn't
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* always packed. So we check for ancestor during actual traversal.
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*/
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chain = g_list_prepend (chain, tmp_list->data);
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gtk_signal_connect (GTK_OBJECT (tmp_list->data),
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"destroy",
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GTK_SIGNAL_FUNC (chain_widget_destroyed),
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container);
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tmp_list = g_list_next (tmp_list);
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}
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chain = g_list_reverse (chain);
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g_object_set_data (G_OBJECT (container),
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"gtk-container-focus-chain",
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chain);
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}
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void
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gtk_container_unset_focus_chain (GtkContainer *container)
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{
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g_return_if_fail (GTK_IS_CONTAINER (container));
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if (container->has_focus_chain)
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{
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GList *chain;
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GList *tmp_list;
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chain = get_focus_chain (container);
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container->has_focus_chain = FALSE;
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g_object_set_data (G_OBJECT (container), "gtk-container-focus-chain",
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NULL);
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tmp_list = chain;
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while (tmp_list != NULL)
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{
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g_signal_handlers_disconnect_by_func (G_OBJECT (tmp_list->data),
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chain_widget_destroyed,
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container);
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tmp_list = g_list_next (tmp_list);
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}
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g_list_free (chain);
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}
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}
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void
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gtk_container_set_focus_vadjustment (GtkContainer *container,
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GtkAdjustment *adjustment)
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@ -62,6 +62,7 @@ struct _GtkContainer
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guint need_resize : 1;
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guint resize_mode : 2;
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guint reallocate_redraws : 1;
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guint has_focus_chain : 1;
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/* The list of children that requested a resize
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*/
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@ -134,6 +135,10 @@ void gtk_container_propagate_expose (GtkContainer *container,
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GtkWidget *child,
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GdkEventExpose *event);
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void gtk_container_set_focus_chain (GtkContainer *container,
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GList *focusable_widgets);
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void gtk_container_unset_focus_chain (GtkContainer *container);
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/* Widget-level methods */
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void gtk_container_set_reallocate_redraws (GtkContainer *container,
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111
gtk/testgtk.c
111
gtk/testgtk.c
@ -6215,6 +6215,116 @@ create_flipping (void)
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gtk_widget_destroy (window);
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}
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/*
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* Focus test
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*/
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static GtkWidget*
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make_focus_table (GList **list)
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{
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GtkWidget *table;
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gint i, j;
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table = gtk_table_new (5, 5, FALSE);
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i = 0;
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j = 0;
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while (i < 5)
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{
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j = 0;
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while (j < 5)
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{
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GtkWidget *widget;
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if ((i + j) % 2)
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widget = gtk_entry_new ();
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else
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widget = gtk_button_new_with_label ("Foo");
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*list = g_list_prepend (*list, widget);
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gtk_table_attach (GTK_TABLE (table),
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widget,
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i, i + 1,
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j, j + 1,
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GTK_EXPAND | GTK_FILL,
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GTK_EXPAND | GTK_FILL,
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5, 5);
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++j;
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}
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++i;
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}
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*list = g_list_reverse (*list);
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return table;
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}
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static void
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create_focus (void)
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{
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static GtkWidget *window = NULL;
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if (!window)
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{
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GtkWidget *table;
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GtkWidget *frame;
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GList *list = NULL;
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GList *first = NULL, *second = NULL, *tmp_list = NULL;
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gint i;
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window = gtk_dialog_new_with_buttons ("Keyboard focus navigation",
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NULL, 0,
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GTK_STOCK_BUTTON_CLOSE,
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GTK_RESPONSE_NONE,
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NULL);
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gtk_signal_connect (GTK_OBJECT (window), "destroy",
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GTK_SIGNAL_FUNC (gtk_widget_destroyed),
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&window);
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gtk_signal_connect (GTK_OBJECT (window), "response",
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GTK_SIGNAL_FUNC (gtk_widget_destroy),
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NULL);
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gtk_window_set_title (GTK_WINDOW (window), "Keyboard Focus Navigation");
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frame = gtk_frame_new ("Weird tab focus chain");
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gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox),
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frame, TRUE, TRUE, 0);
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table = make_focus_table (&list);
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gtk_container_add (GTK_CONTAINER (frame), table);
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gtk_container_set_focus_chain (GTK_CONTAINER (table),
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list);
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g_list_free (list);
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frame = gtk_frame_new ("Default tab focus chain");
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gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox),
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frame, TRUE, TRUE, 0);
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list = NULL;
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table = make_focus_table (&list);
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g_list_free (list);
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gtk_container_add (GTK_CONTAINER (frame), table);
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}
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if (!GTK_WIDGET_VISIBLE (window))
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gtk_widget_show_all (window);
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else
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gtk_widget_destroy (window);
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}
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/*
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* GtkFontSelection
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*/
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@ -9705,6 +9815,7 @@ create_main_window (void)
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{ "event watcher", create_event_watcher },
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{ "file selection", create_file_selection },
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{ "flipping", create_flipping },
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{ "focus", create_focus },
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{ "font selection", create_font_selection },
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{ "gamma curve", create_gamma_curve },
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{ "handle box", create_handle_box },
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111
tests/testgtk.c
111
tests/testgtk.c
@ -6215,6 +6215,116 @@ create_flipping (void)
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gtk_widget_destroy (window);
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}
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/*
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* Focus test
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*/
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static GtkWidget*
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||||
make_focus_table (GList **list)
|
||||
{
|
||||
GtkWidget *table;
|
||||
gint i, j;
|
||||
|
||||
table = gtk_table_new (5, 5, FALSE);
|
||||
|
||||
i = 0;
|
||||
j = 0;
|
||||
|
||||
while (i < 5)
|
||||
{
|
||||
j = 0;
|
||||
while (j < 5)
|
||||
{
|
||||
GtkWidget *widget;
|
||||
|
||||
if ((i + j) % 2)
|
||||
widget = gtk_entry_new ();
|
||||
else
|
||||
widget = gtk_button_new_with_label ("Foo");
|
||||
|
||||
*list = g_list_prepend (*list, widget);
|
||||
|
||||
gtk_table_attach (GTK_TABLE (table),
|
||||
widget,
|
||||
i, i + 1,
|
||||
j, j + 1,
|
||||
GTK_EXPAND | GTK_FILL,
|
||||
GTK_EXPAND | GTK_FILL,
|
||||
5, 5);
|
||||
|
||||
++j;
|
||||
}
|
||||
|
||||
++i;
|
||||
}
|
||||
|
||||
*list = g_list_reverse (*list);
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
static void
|
||||
create_focus (void)
|
||||
{
|
||||
static GtkWidget *window = NULL;
|
||||
|
||||
if (!window)
|
||||
{
|
||||
GtkWidget *table;
|
||||
GtkWidget *frame;
|
||||
GList *list = NULL;
|
||||
GList *first = NULL, *second = NULL, *tmp_list = NULL;
|
||||
gint i;
|
||||
|
||||
window = gtk_dialog_new_with_buttons ("Keyboard focus navigation",
|
||||
NULL, 0,
|
||||
GTK_STOCK_BUTTON_CLOSE,
|
||||
GTK_RESPONSE_NONE,
|
||||
NULL);
|
||||
|
||||
gtk_signal_connect (GTK_OBJECT (window), "destroy",
|
||||
GTK_SIGNAL_FUNC (gtk_widget_destroyed),
|
||||
&window);
|
||||
|
||||
gtk_signal_connect (GTK_OBJECT (window), "response",
|
||||
GTK_SIGNAL_FUNC (gtk_widget_destroy),
|
||||
NULL);
|
||||
|
||||
gtk_window_set_title (GTK_WINDOW (window), "Keyboard Focus Navigation");
|
||||
|
||||
frame = gtk_frame_new ("Weird tab focus chain");
|
||||
|
||||
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox),
|
||||
frame, TRUE, TRUE, 0);
|
||||
|
||||
table = make_focus_table (&list);
|
||||
|
||||
gtk_container_add (GTK_CONTAINER (frame), table);
|
||||
|
||||
gtk_container_set_focus_chain (GTK_CONTAINER (table),
|
||||
list);
|
||||
|
||||
g_list_free (list);
|
||||
|
||||
frame = gtk_frame_new ("Default tab focus chain");
|
||||
|
||||
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox),
|
||||
frame, TRUE, TRUE, 0);
|
||||
|
||||
list = NULL;
|
||||
table = make_focus_table (&list);
|
||||
|
||||
g_list_free (list);
|
||||
|
||||
gtk_container_add (GTK_CONTAINER (frame), table);
|
||||
}
|
||||
|
||||
if (!GTK_WIDGET_VISIBLE (window))
|
||||
gtk_widget_show_all (window);
|
||||
else
|
||||
gtk_widget_destroy (window);
|
||||
}
|
||||
|
||||
/*
|
||||
* GtkFontSelection
|
||||
*/
|
||||
@ -9705,6 +9815,7 @@ create_main_window (void)
|
||||
{ "event watcher", create_event_watcher },
|
||||
{ "file selection", create_file_selection },
|
||||
{ "flipping", create_flipping },
|
||||
{ "focus", create_focus },
|
||||
{ "font selection", create_font_selection },
|
||||
{ "gamma curve", create_gamma_curve },
|
||||
{ "handle box", create_handle_box },
|
||||
|
||||
Loading…
Reference in New Issue
Block a user