#include "gtksettingsprivate.h"
#include "gtksnapshot.h"
#include "gtkwidgetprivate.h"
+#include "gtksingleselection.h"
+#include "gtklistlistmodelprivate.h"
#include "a11y/gtkstackaccessible.h"
#include "a11y/gtkstackaccessibleprivate.h"
#include <math.h>
GtkStackTransitionType active_transition_type;
+ GtkSelectionModel *pages;
+
} GtkStackPrivate;
static void gtk_stack_buildable_interface_init (GtkBuildableIface *iface);
g_object_class_install_properties (object_class, LAST_CHILD_PROP, stack_child_props);
}
+#define GTK_TYPE_STACK_PAGES (gtk_stack_pages_get_type ())
+G_DECLARE_FINAL_TYPE (GtkStackPages, gtk_stack_pages, GTK, STACK_PAGES, GObject)
+
+struct _GtkStackPages
+{
+ GObject parent_instance;
+ GtkStack *stack;
+};
+
+struct _GtkStackPagesClass
+{
+ GObjectClass parent_class;
+};
+
+static GType
+gtk_stack_pages_get_item_type (GListModel *model)
+{
+ return GTK_TYPE_STACK_PAGE;
+}
+
+static guint
+gtk_stack_pages_get_n_items (GListModel *model)
+{
+ GtkStackPages *pages = GTK_STACK_PAGES (model);
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (pages->stack);
+
+ return g_list_length (priv->children);
+}
+
+static gpointer
+gtk_stack_pages_get_item (GListModel *model,
+ guint position)
+{
+ GtkStackPages *pages = GTK_STACK_PAGES (model);
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (pages->stack);
+ GtkStackPage *page;
+
+ page = g_list_nth_data (priv->children, position);
+
+ return g_object_ref (page);
+}
+
+static void
+gtk_stack_pages_list_model_init (GListModelInterface *iface)
+{
+ iface->get_item_type = gtk_stack_pages_get_item_type;
+ iface->get_n_items = gtk_stack_pages_get_n_items;
+ iface->get_item = gtk_stack_pages_get_item;
+}
+
+static gboolean
+gtk_stack_pages_is_selected (GtkSelectionModel *model,
+ guint position)
+{
+ GtkStackPages *pages = GTK_STACK_PAGES (model);
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (pages->stack);
+ GtkStackPage *page;
+
+ page = GTK_STACK_PAGE (g_list_model_get_item (G_LIST_MODEL (model), position));
+ g_object_unref (page);
+
+ return page == priv->visible_child;
+}
+
+static void set_visible_child (GtkStack *stack,
+ GtkStackPage *child_info,
+ GtkStackTransitionType transition_type,
+ guint transition_duration);
+
+static gboolean
+gtk_stack_pages_select_item (GtkSelectionModel *model,
+ guint position,
+ gboolean exclusive)
+{
+ GtkStackPages *pages = GTK_STACK_PAGES (model);
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (pages->stack);
+ GtkStackPage *page;
+
+ page = GTK_STACK_PAGE (g_list_model_get_item (G_LIST_MODEL (model), position));
+ g_object_unref (page);
+
+ set_visible_child (pages->stack, page, priv->transition_type, priv->transition_duration);
+
+ return TRUE;
+}
+
+static void
+gtk_stack_pages_selection_model_init (GtkSelectionModelInterface *iface)
+{
+ iface->is_selected = gtk_stack_pages_is_selected;
+ iface->select_item = gtk_stack_pages_select_item;
+}
+
+G_DEFINE_TYPE_WITH_CODE (GtkStackPages, gtk_stack_pages, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_stack_pages_list_model_init)
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_SELECTION_MODEL, gtk_stack_pages_selection_model_init))
+
+static void
+gtk_stack_pages_init (GtkStackPages *pages)
+{
+}
+
+static void
+gtk_stack_pages_class_init (GtkStackPagesClass *class)
+{
+}
+
+static GtkStackPages *
+gtk_stack_pages_new (GtkStack *stack)
+{
+ GtkStackPages *pages;
+
+ pages = g_object_new (GTK_TYPE_STACK_PAGES, NULL);
+ pages->stack = stack;
+
+ return pages;
+}
+
static void gtk_stack_add (GtkContainer *widget,
GtkWidget *child);
static void gtk_stack_remove (GtkContainer *widget,
int *natural,
int *minimum_baseline,
int *natural_baseline);
+static void gtk_stack_dispose (GObject *obj);
static void gtk_stack_finalize (GObject *obj);
static void gtk_stack_get_property (GObject *object,
guint property_id,
iface->add_child = gtk_stack_buildable_add_child;
}
+static void stack_remove (GtkStack *stack,
+ GtkWidget *child,
+ gboolean in_dispose);
+
+static void
+remove_child (GtkWidget *child, gpointer user_data)
+{
+ stack_remove (GTK_STACK (user_data), child, TRUE);
+}
+
+static void
+gtk_stack_dispose (GObject *obj)
+{
+ GtkStack *stack = GTK_STACK (obj);
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
+
+ if (priv->pages)
+ g_list_model_items_changed (G_LIST_MODEL (priv->pages), 0, g_list_length (priv->children), 0);
+ gtk_container_foreach (GTK_CONTAINER (obj), remove_child, obj);
+
+ G_OBJECT_CLASS (gtk_stack_parent_class)->dispose (obj);
+}
+
static void
gtk_stack_finalize (GObject *obj)
{
object_class->get_property = gtk_stack_get_property;
object_class->set_property = gtk_stack_set_property;
+ object_class->dispose = gtk_stack_dispose;
object_class->finalize = gtk_stack_finalize;
widget_class->size_allocate = gtk_stack_size_allocate;
GtkWidget *toplevel;
GtkWidget *focus;
gboolean contains_focus = FALSE;
+ guint old_pos = 0;
+ guint new_pos = 0;
/* if we are being destroyed, do not bother with transitions
* and notifications
if (child_info == priv->visible_child)
return;
+ if (child_info == NULL)
+ return;
+
+ if (priv->pages)
+ {
+ guint position;
+ for (l = priv->children, position = 0; l != NULL; l = l->next, position++)
+ {
+ info = l->data;
+ if (info == priv->visible_child)
+ old_pos = position;
+ else if (info == child_info)
+ new_pos = position;
+ }
+ }
+
toplevel = gtk_widget_get_toplevel (widget);
if (GTK_IS_WINDOW (toplevel))
{
g_object_notify_by_pspec (G_OBJECT (stack),
stack_props[PROP_VISIBLE_CHILD_NAME]);
+ if (priv->pages)
+ gtk_selection_model_selection_changed (priv->pages,
+ MIN (old_pos, new_pos),
+ MAX (old_pos, new_pos) - MIN (old_pos, new_pos) + 1);
+
gtk_stack_start_transition (stack, transition_type, transition_duration);
}
gtk_widget_set_child_visible (child_info->widget, FALSE);
gtk_widget_set_parent (child_info->widget, GTK_WIDGET (stack));
+ if (priv->pages)
+ g_list_model_items_changed (G_LIST_MODEL (priv->pages), g_list_length (priv->children) - 1, 0, 1);
+
g_signal_connect (child_info->widget, "notify::visible",
G_CALLBACK (stack_child_visibility_notify_cb), stack);
}
static void
-gtk_stack_remove (GtkContainer *container,
- GtkWidget *child)
+stack_remove (GtkStack *stack,
+ GtkWidget *child,
+ gboolean in_dispose)
{
- GtkStack *stack = GTK_STACK (container);
GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
GtkStackPage *child_info;
gboolean was_visible;
return;
priv->children = g_list_remove (priv->children, child_info);
-
+
g_signal_handlers_disconnect_by_func (child,
stack_child_visibility_notify_cb,
stack);
child_info->widget = NULL;
if (priv->visible_child == child_info)
- set_visible_child (stack, NULL, priv->transition_type, priv->transition_duration);
+ {
+ if (in_dispose)
+ priv->visible_child = NULL;
+ else
+ set_visible_child (stack, NULL, priv->transition_type, priv->transition_duration);
+ }
if (priv->last_visible_child == child_info)
priv->last_visible_child = NULL;
g_object_unref (child_info);
- if ((priv->hhomogeneous || priv->vhomogeneous) && was_visible)
+ if (!in_dispose &&
+ (priv->hhomogeneous || priv->vhomogeneous) &&
+ was_visible)
gtk_widget_queue_resize (GTK_WIDGET (stack));
}
+static void
+gtk_stack_remove (GtkContainer *container,
+ GtkWidget *child)
+{
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (GTK_STACK (container));
+ GList *l;
+ guint position;
+
+ for (l = priv->children, position = 0; l; l = l->next, position++)
+ {
+ GtkStackPage *page = l->data;
+ if (page->widget == child)
+ break;
+ }
+
+ stack_remove (GTK_STACK (container), child, FALSE);
+
+ if (priv->pages)
+ g_list_model_items_changed (G_LIST_MODEL (priv->pages), position, 1, 0);
+}
+
/**
* gtk_stack_get_page:
* @stack: a #GtkStack
priv->transition_duration = 200;
priv->transition_type = GTK_STACK_TRANSITION_TYPE_NONE;
}
+
+/**
+ * gtk_stack_get_pages:
+ * @stack: a #GtkStack
+ *
+ * Returns a #GListModel that contains the pages of the stack,
+ * and can be used to keep and up-to-date view. The model also
+ * implements #GtkSelectionModel and can be used to track and
+ * modify the visible page..
+ *
+ * Returns: (transfer full): a #GtkSelectionModel for the stack's children
+ */
+GtkSelectionModel *
+gtk_stack_get_pages (GtkStack *stack)
+{
+ GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
+
+ g_return_val_if_fail (GTK_IS_STACK (stack), NULL);
+
+ if (priv->pages)
+ return g_object_ref (priv->pages);
+
+ priv->pages = GTK_SELECTION_MODEL (gtk_stack_pages_new (stack));
+ g_object_add_weak_pointer (G_OBJECT (priv->pages), (gpointer *)&priv->pages);
+
+ return priv->pages;
+}
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