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popover: listen harder on the widget being pointed to

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Hierarchy, size allocation and widget visibility are now listened
to in order to update the popover state accordingly.
This commit is contained in:
Carlos Garnacho 2013-11-13 10:47:13 +01:00
parent caeb896096
commit b4805f7076
1 changed files with 92 additions and 4 deletions
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92
gtk/gtkpopover.c
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@ -56,10 +56,12 @@ enum {
struct _GtkPopoverPrivate
{
GdkDevice *device;
GtkWidget *widget;
GtkWindow *window;
cairo_rectangle_int_t pointing_to;
guint hierarchy_changed_id;
guint size_allocate_id;
guint unmap_id;
guint has_pointing_to : 1;
guint preferred_position : 2;
guint final_position : 2;
@ -67,6 +69,8 @@ struct _GtkPopoverPrivate
};
static void gtk_popover_update_position (GtkPopover *popover);
static void gtk_popover_update_relative_to (GtkPopover *popover,
GtkWidget *relative_to);
G_DEFINE_TYPE_WITH_PRIVATE (GtkPopover, gtk_popover, GTK_TYPE_BIN)
@ -135,6 +139,10 @@ static void
gtk_popover_finalize (GObject *object)
{
GtkPopover *popover = GTK_POPOVER (object);
GtkPopoverPrivate *priv = popover->priv;
if (priv->widget)
gtk_popover_update_relative_to (popover, NULL);
G_OBJECT_CLASS (gtk_popover_parent_class)->finalize (object);
}
@ -149,7 +157,9 @@ gtk_popover_dispose (GObject *object)
gtk_window_remove_popover (priv->window, GTK_WIDGET (object));
priv->window = NULL;
priv->widget = NULL;
if (priv->widget)
gtk_popover_update_relative_to (popover, NULL);
G_OBJECT_CLASS (gtk_popover_parent_class)->dispose (object);
}
@ -814,6 +824,59 @@ _gtk_popover_update_context_parent (GtkPopover *popover)
gtk_style_context_set_parent (context, parent_context);
}
static void
_gtk_popover_parent_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel,
GtkPopover *popover)
{
GtkPopoverPrivate *priv;
GtkWindow *new_window;
priv = popover->priv;
new_window = GTK_WINDOW (gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW));
if (priv->window == new_window)
return;
g_object_ref (popover);
if (priv->window)
gtk_window_remove_popover (priv->window, GTK_WIDGET (popover));
if (new_window)
{
gtk_window_add_popover (new_window, GTK_WIDGET (popover));
g_object_unref (popover);
}
else
g_object_force_floating (G_OBJECT (popover));
priv->window = new_window;
if (new_window)
gtk_popover_update_position (popover);
_gtk_popover_update_context_parent (popover);
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
gtk_widget_queue_resize (GTK_WIDGET (popover));
}
static void
_gtk_popover_parent_unmap (GtkWidget *widget,
GtkPopover *popover)
{
gtk_widget_unmap (GTK_WIDGET (popover));
}
static void
_gtk_popover_parent_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GtkPopover *popover)
{
gtk_popover_update_position (popover);
}
static void
gtk_popover_update_relative_to (GtkPopover *popover,
GtkWidget *relative_to)
@ -831,13 +894,38 @@ gtk_popover_update_relative_to (GtkPopover *popover,
priv->window = NULL;
}
if (priv->widget)
{
if (g_signal_handler_is_connected (priv->widget, priv->hierarchy_changed_id))
g_signal_handler_disconnect (priv->widget, priv->hierarchy_changed_id);
if (g_signal_handler_is_connected (priv->widget, priv->size_allocate_id))
g_signal_handler_disconnect (priv->widget, priv->size_allocate_id);
if (g_signal_handler_is_connected (priv->widget, priv->unmap_id))
g_signal_handler_disconnect (priv->widget, priv->unmap_id);
}
priv->widget = relative_to;
g_object_notify (G_OBJECT (popover), "relative-to");
if (priv->widget)
{
priv->window =
GTK_WINDOW (gtk_widget_get_ancestor (priv->widget, GTK_TYPE_WINDOW));
priv->hierarchy_changed_id =
g_signal_connect (priv->widget, "hierarchy-changed",
G_CALLBACK (_gtk_popover_parent_hierarchy_changed),
popover);
priv->size_allocate_id =
g_signal_connect (priv->widget, "size-allocate",
G_CALLBACK (_gtk_popover_parent_size_allocate),
popover);
priv->unmap_id =
g_signal_connect (priv->widget, "unmap",
G_CALLBACK (_gtk_popover_parent_unmap),
popover);
}
if (priv->window)
gtk_window_add_popover (priv->window, GTK_WIDGET (popover));