forked from AuroraMiddleware/gtk
895 lines
26 KiB
C
895 lines
26 KiB
C
/* GTK - The GIMP Toolkit
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*
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* Copyright (C) 2003 Ricardo Fernandez Pascual
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* Copyright (C) 2004 Paolo Borelli
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* Copyright (C) 2012 Bastien Nocera
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* SECTION:gtkmenubutton
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* @short_description: A widget that shows a menu when clicked on
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* @title: GtkMenuButton
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*
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* The #GtkMenuButton widget is used to display a menu when clicked on.
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* This menu can be provided either as a #GtkMenu, or an abstract #GMenuModel.
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*
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* The #GtkMenuButton widget can hold any valid child widget. That is, it
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* can hold almost any other standard #GtkWidget. The most commonly used
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* child is the provided #GtkArrow.
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*
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* The positioning of the menu is determined by the #GtkMenuButton:direction
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* property of the menu button and the #GtkWidget:halign or #GtkWidget:valign
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* properties of the menu. For example, when the direction is %GTK_ARROW_DOWN
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* and the horizontal alignment is %GTK_ALIGN_START, the menu will be
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* positioned below the button, with the starting edge (depending on the
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* text direction) of the menu aligned with the starting edge of the button.
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* If there is not enough space below the button, the menu is popped up above
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* the button instead. If the alignment would move part of the menu offscreen,
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* it is “pushed in”.
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*
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* ## Direction = Down
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*
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* - halign = start
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*
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* 
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*
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* - halign = center
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*
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* 
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*
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* - halign = end
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*
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* 
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*
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* ## Direction = Up
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*
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* - halign = start
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*
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* 
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*
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* - halign = center
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*
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* 
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*
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* - halign = end
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*
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* 
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*
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* ## Direction = Left
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*
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* - valign = start
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*
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* 
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*
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* - valign = center
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*
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* 
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*
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* - valign = end
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*
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* 
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*
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* ## Direction = Right
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*
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* - valign = start
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*
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* 
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*
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* - valign = center
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*
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* 
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*
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* - valign = end
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*
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* 
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*
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*/
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#include "config.h"
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#include "gtkmenubutton.h"
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#include "gtkmenubuttonprivate.h"
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#include "gtkarrow.h"
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#include "gtktypebuiltins.h"
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#include "gtkwindow.h"
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#include "gtkmain.h"
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#include "gtkaccessible.h"
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#include "a11y/gtkmenubuttonaccessible.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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struct _GtkMenuButtonPrivate
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{
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GtkWidget *popup;
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GMenuModel *model;
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GtkMenuButtonShowMenuCallback func;
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gpointer user_data;
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GtkWidget *align_widget;
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gpointer arrow_widget;
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GtkArrowType arrow_type;
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};
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enum
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{
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PROP_0,
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PROP_POPUP,
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PROP_MODEL,
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PROP_ALIGN_WIDGET,
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PROP_DIRECTION
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};
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G_DEFINE_TYPE_WITH_PRIVATE (GtkMenuButton, gtk_menu_button, GTK_TYPE_TOGGLE_BUTTON)
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static void gtk_menu_button_dispose (GObject *object);
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static void
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gtk_menu_button_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (object);
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switch (property_id)
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{
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case PROP_POPUP:
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gtk_menu_button_set_popup (self, g_value_get_object (value));
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break;
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case PROP_MODEL:
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gtk_menu_button_set_menu_model (self, g_value_get_object (value));
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break;
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case PROP_ALIGN_WIDGET:
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gtk_menu_button_set_align_widget (self, g_value_get_object (value));
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break;
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case PROP_DIRECTION:
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gtk_menu_button_set_direction (self, g_value_get_enum (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_menu_button_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (object)->priv;
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switch (property_id)
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{
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case PROP_POPUP:
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g_value_set_object (value, priv->popup);
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break;
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case PROP_MODEL:
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g_value_set_object (value, priv->model);
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break;
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case PROP_ALIGN_WIDGET:
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g_value_set_object (value, priv->align_widget);
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break;
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case PROP_DIRECTION:
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g_value_set_enum (value, priv->arrow_type);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_menu_button_state_flags_changed (GtkWidget *widget,
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GtkStateFlags previous_state_flags)
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{
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GtkMenuButton *button = GTK_MENU_BUTTON (widget);
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GtkMenuButtonPrivate *priv = button->priv;
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if (!gtk_widget_is_sensitive (widget) && priv->popup)
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gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->popup));
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}
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static void
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menu_position_up_down_func (GtkMenu *menu,
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gint *x,
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gint *y,
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gboolean *push_in,
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GtkMenuButton *menu_button)
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{
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GtkMenuButtonPrivate *priv = menu_button->priv;
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GtkWidget *widget = GTK_WIDGET (menu_button);
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GtkWidget *toplevel;
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GtkTextDirection direction;
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GdkRectangle monitor;
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gint monitor_num;
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GdkScreen *screen;
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GdkWindow *window;
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GtkAllocation menu_allocation, allocation, arrow_allocation;
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GtkAlign align;
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/* In the common case the menu button is showing a dropdown menu, set the
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* corresponding type hint on the toplevel, so the WM can omit the top side
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* of the shadows.
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*/
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if (priv->arrow_type == GTK_ARROW_DOWN)
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{
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toplevel = gtk_widget_get_toplevel (GTK_WIDGET (priv->popup));
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gtk_window_set_type_hint (GTK_WINDOW (toplevel), GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU);
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}
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align = gtk_widget_get_halign (GTK_WIDGET (priv->popup));
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direction = gtk_widget_get_direction (widget);
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window = gtk_widget_get_window (priv->align_widget ? priv->align_widget : widget);
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screen = gtk_widget_get_screen (GTK_WIDGET (menu));
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monitor_num = gdk_screen_get_monitor_at_window (screen, window);
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if (monitor_num < 0)
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monitor_num = 0;
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gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
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gtk_widget_get_allocation (priv->align_widget ? priv->align_widget : widget, &allocation);
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gtk_widget_get_allocation (widget, &arrow_allocation);
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gtk_widget_get_allocation (GTK_WIDGET (priv->popup), &menu_allocation);
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gdk_window_get_origin (window, x, y);
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*x += allocation.x;
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*y += allocation.y;
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/* treat the default align value like START */
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if (align == GTK_ALIGN_FILL)
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align = GTK_ALIGN_START;
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if (align == GTK_ALIGN_CENTER)
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*x -= (menu_allocation.width - allocation.width) / 2;
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else if ((align == GTK_ALIGN_START && direction == GTK_TEXT_DIR_LTR) ||
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(align == GTK_ALIGN_END && direction == GTK_TEXT_DIR_RTL))
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*x += MAX (allocation.width - menu_allocation.width, 0);
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else if (menu_allocation.width > allocation.width)
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*x -= menu_allocation.width - allocation.width;
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if (priv->arrow_type == GTK_ARROW_UP && *y - menu_allocation.height >= monitor.y)
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{
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*y -= menu_allocation.height;
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}
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else
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{
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if ((*y + arrow_allocation.height + menu_allocation.height) <= monitor.y + monitor.height)
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*y += arrow_allocation.height;
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else if ((*y - menu_allocation.height) >= monitor.y)
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*y -= menu_allocation.height;
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else if (monitor.y + monitor.height - (*y + arrow_allocation.height) > *y)
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*y += arrow_allocation.height;
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else
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*y -= menu_allocation.height;
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}
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*push_in = FALSE;
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}
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static void
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menu_position_side_func (GtkMenu *menu,
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gint *x,
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gint *y,
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gboolean *push_in,
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GtkMenuButton *menu_button)
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{
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GtkMenuButtonPrivate *priv = menu_button->priv;
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GtkAllocation allocation;
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GtkAllocation menu_allocation;
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GtkWidget *widget = GTK_WIDGET (menu_button);
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GdkRectangle monitor;
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gint monitor_num;
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GdkScreen *screen;
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GdkWindow *window;
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GtkAlign align;
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GtkTextDirection direction;
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window = gtk_widget_get_window (widget);
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direction = gtk_widget_get_direction (widget);
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align = gtk_widget_get_valign (GTK_WIDGET (menu));
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screen = gtk_widget_get_screen (GTK_WIDGET (menu));
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monitor_num = gdk_screen_get_monitor_at_window (screen, window);
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if (monitor_num < 0)
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monitor_num = 0;
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gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
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gdk_window_get_origin (gtk_button_get_event_window (GTK_BUTTON (menu_button)), x, y);
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gtk_widget_get_allocation (widget, &allocation);
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gtk_widget_get_allocation (GTK_WIDGET (priv->popup), &menu_allocation);
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if ((priv->arrow_type == GTK_ARROW_RIGHT && direction == GTK_TEXT_DIR_LTR) ||
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(priv->arrow_type == GTK_ARROW_LEFT && direction == GTK_TEXT_DIR_RTL))
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{
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if (*x + allocation.width + menu_allocation.width <= monitor.x + monitor.width)
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*x += allocation.width;
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else
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*x -= menu_allocation.width;
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}
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else
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{
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if (*x - menu_allocation.width >= monitor.x)
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*x -= menu_allocation.width;
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else
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*x += allocation.width;
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}
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/* treat the default align value like START */
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if (align == GTK_ALIGN_FILL)
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align = GTK_ALIGN_START;
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if (align == GTK_ALIGN_CENTER)
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*y -= (menu_allocation.height - allocation.height) / 2;
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else if (align == GTK_ALIGN_END)
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*y -= menu_allocation.height - allocation.height;
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*push_in = FALSE;
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}
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static void
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popup_menu (GtkMenuButton *menu_button,
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GdkEventButton *event)
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{
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GtkMenuButtonPrivate *priv = menu_button->priv;
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GtkMenuPositionFunc func;
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if (priv->func)
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priv->func (priv->user_data);
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if (!priv->popup)
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return;
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switch (priv->arrow_type)
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{
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case GTK_ARROW_LEFT:
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case GTK_ARROW_RIGHT:
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func = (GtkMenuPositionFunc) menu_position_side_func;
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break;
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default:
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func = (GtkMenuPositionFunc) menu_position_up_down_func;
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break;
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}
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gtk_menu_popup_for_device (GTK_MENU (priv->popup),
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event ? event->device : NULL,
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NULL, NULL,
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func,
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GTK_WIDGET (menu_button),
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NULL,
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event ? event->button : 0,
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event ? event->time : gtk_get_current_event_time ());
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}
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static void
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gtk_menu_button_toggled (GtkToggleButton *button)
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{
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GtkMenuButton *menu_button = GTK_MENU_BUTTON (button);
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GtkMenuButtonPrivate *priv = menu_button->priv;
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if (!priv->popup)
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return;
|
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|
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if (gtk_toggle_button_get_active (button) &&
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!gtk_widget_get_visible (GTK_WIDGET (priv->popup)))
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{
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/* we get here only when the menu is activated by a key
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* press, so that we can select the first menu item
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*/
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popup_menu (menu_button, NULL);
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gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup), FALSE);
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}
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}
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static gboolean
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gtk_menu_button_button_press_event (GtkWidget *widget,
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GdkEventButton *event)
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{
|
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if (event->button == GDK_BUTTON_PRIMARY)
|
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{
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popup_menu (GTK_MENU_BUTTON (widget), event);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
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return TRUE;
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}
|
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return GTK_WIDGET_CLASS (gtk_menu_button_parent_class)->button_press_event (widget, event);
|
||
}
|
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|
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static void
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gtk_menu_button_add (GtkContainer *container,
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GtkWidget *child)
|
||
{
|
||
GtkMenuButton *button = GTK_MENU_BUTTON (container);
|
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|
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if (button->priv->arrow_widget)
|
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gtk_container_remove (container, button->priv->arrow_widget);
|
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GTK_CONTAINER_CLASS (gtk_menu_button_parent_class)->add (container, child);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_button_remove (GtkContainer *container,
|
||
GtkWidget *child)
|
||
{
|
||
GtkMenuButton *button = GTK_MENU_BUTTON (container);
|
||
|
||
if (child == button->priv->arrow_widget)
|
||
button->priv->arrow_widget = NULL;
|
||
|
||
GTK_CONTAINER_CLASS (gtk_menu_button_parent_class)->remove (container, child);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_button_class_init (GtkMenuButtonClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
||
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
|
||
GtkToggleButtonClass *toggle_button_class = GTK_TOGGLE_BUTTON_CLASS (klass);
|
||
|
||
gobject_class->set_property = gtk_menu_button_set_property;
|
||
gobject_class->get_property = gtk_menu_button_get_property;
|
||
gobject_class->dispose = gtk_menu_button_dispose;
|
||
|
||
widget_class->state_flags_changed = gtk_menu_button_state_flags_changed;
|
||
widget_class->button_press_event = gtk_menu_button_button_press_event;
|
||
|
||
container_class->add = gtk_menu_button_add;
|
||
container_class->remove = gtk_menu_button_remove;
|
||
|
||
toggle_button_class->toggled = gtk_menu_button_toggled;
|
||
|
||
/**
|
||
* GtkMenuButton:popup:
|
||
*
|
||
* The #GtkMenu that will be popped up when the button is clicked.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_POPUP,
|
||
g_param_spec_object ("popup",
|
||
P_("Popup"),
|
||
P_("The dropdown menu."),
|
||
GTK_TYPE_MENU,
|
||
G_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkMenuButton:menu-model:
|
||
*
|
||
* The #GMenuModel from which the menu to pop up will be created.
|
||
* See gtk_menu_button_set_menu_model() for the interaction with the
|
||
* #GtkMenuButton:popup property.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_MODEL,
|
||
g_param_spec_object ("menu-model",
|
||
P_("Menu model"),
|
||
P_("The dropdown menu's model."),
|
||
G_TYPE_MENU_MODEL,
|
||
G_PARAM_READWRITE));
|
||
/**
|
||
* GtkMenuButton:align-widget:
|
||
*
|
||
* The #GtkWidget to use to align the popup menu with.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ALIGN_WIDGET,
|
||
g_param_spec_object ("align-widget",
|
||
P_("Align with"),
|
||
P_("The parent widget which the menu should align with."),
|
||
GTK_TYPE_CONTAINER,
|
||
G_PARAM_READWRITE));
|
||
/**
|
||
* GtkMenuButton:direction:
|
||
*
|
||
* The #GtkArrowType representing the direction in which the
|
||
* menu will be popped out.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_DIRECTION,
|
||
g_param_spec_enum ("direction",
|
||
P_("Direction"),
|
||
P_("The direction the arrow should point."),
|
||
GTK_TYPE_ARROW_TYPE,
|
||
GTK_ARROW_DOWN,
|
||
G_PARAM_READWRITE));
|
||
|
||
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_MENU_BUTTON_ACCESSIBLE);
|
||
}
|
||
|
||
static void
|
||
add_arrow (GtkMenuButton *menu_button)
|
||
{
|
||
GtkWidget *arrow;
|
||
|
||
arrow = gtk_arrow_new (menu_button->priv->arrow_type, GTK_SHADOW_NONE);
|
||
gtk_container_add (GTK_CONTAINER (menu_button), arrow);
|
||
gtk_widget_show (arrow);
|
||
menu_button->priv->arrow_widget = arrow;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_button_init (GtkMenuButton *menu_button)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
AtkObject *accessible;
|
||
|
||
priv = gtk_menu_button_get_instance_private (menu_button);
|
||
menu_button->priv = priv;
|
||
priv->arrow_type = GTK_ARROW_DOWN;
|
||
|
||
add_arrow (menu_button);
|
||
|
||
gtk_widget_set_sensitive (GTK_WIDGET (menu_button), FALSE);
|
||
|
||
accessible = gtk_widget_get_accessible (GTK_WIDGET (menu_button));
|
||
if (GTK_IS_ACCESSIBLE (accessible))
|
||
atk_object_set_name (accessible, _("Menu"));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_new:
|
||
*
|
||
* Creates a new #GtkMenuButton widget with downwards-pointing
|
||
* arrow as the only child. You can replace the child widget
|
||
* with another #GtkWidget should you wish to.
|
||
*
|
||
* Returns: The newly created #GtkMenuButton widget.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
GtkWidget *
|
||
gtk_menu_button_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_MENU_BUTTON, NULL);
|
||
}
|
||
|
||
/* Callback for the "deactivate" signal on the pop-up menu.
|
||
* This is used so that we unset the state of the toggle button
|
||
* when the pop-up menu disappears.
|
||
*/
|
||
static int
|
||
menu_deactivate_cb (GtkMenuShell *menu_shell,
|
||
GtkMenuButton *menu_button)
|
||
{
|
||
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button), FALSE);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
menu_detacher (GtkWidget *widget,
|
||
GtkMenu *menu)
|
||
{
|
||
GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (widget)->priv;
|
||
|
||
g_return_if_fail (priv->popup == (GtkWidget *) menu);
|
||
|
||
priv->popup = NULL;
|
||
}
|
||
|
||
/* This function is used in GtkMenuToolButton, the call back will
|
||
* be called when GtkMenuToolButton would have emitted the “show-menu”
|
||
* signal.
|
||
*/
|
||
void
|
||
_gtk_menu_button_set_popup_with_func (GtkMenuButton *menu_button,
|
||
GtkWidget *menu,
|
||
GtkMenuButtonShowMenuCallback func,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (GTK_IS_MENU (menu) || menu == NULL);
|
||
|
||
priv = menu_button->priv;
|
||
priv->func = func;
|
||
priv->user_data = user_data;
|
||
|
||
if (priv->popup == GTK_WIDGET (menu))
|
||
return;
|
||
|
||
if (priv->popup)
|
||
{
|
||
if (gtk_widget_get_visible (GTK_WIDGET (priv->popup)))
|
||
gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->popup));
|
||
|
||
g_signal_handlers_disconnect_by_func (priv->popup,
|
||
menu_deactivate_cb,
|
||
menu_button);
|
||
gtk_menu_detach (GTK_MENU (priv->popup));
|
||
}
|
||
|
||
priv->popup = menu;
|
||
|
||
if (priv->popup)
|
||
{
|
||
gtk_menu_attach_to_widget (GTK_MENU (priv->popup), GTK_WIDGET (menu_button),
|
||
menu_detacher);
|
||
|
||
gtk_widget_set_visible (priv->popup, FALSE);
|
||
gtk_widget_set_sensitive (GTK_WIDGET (menu_button), TRUE);
|
||
|
||
g_signal_connect (priv->popup, "deactivate",
|
||
G_CALLBACK (menu_deactivate_cb), menu_button);
|
||
}
|
||
else
|
||
{
|
||
gtk_widget_set_sensitive (GTK_WIDGET (menu_button), FALSE);
|
||
}
|
||
|
||
g_object_notify (G_OBJECT (menu_button), "popup");
|
||
g_object_notify (G_OBJECT (menu_button), "menu-model");
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_popup:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @popup: (allow-none): a #GtkMenu
|
||
*
|
||
* Sets the #GtkMenu that will be popped up when the button is clicked,
|
||
* or %NULL to disable the button. If #GtkMenuButton:menu-model is set,
|
||
* it will be set to %NULL.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
void
|
||
gtk_menu_button_set_popup (GtkMenuButton *menu_button,
|
||
GtkWidget *popup)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (GTK_IS_MENU (popup) || popup == NULL);
|
||
|
||
priv = menu_button->priv;
|
||
g_clear_object (&priv->model);
|
||
|
||
_gtk_menu_button_set_popup_with_func (menu_button, popup, NULL, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_popup:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the #GtkMenu that pops out of the button.
|
||
*
|
||
* Returns: (transfer none): a #GtkMenu or %NULL.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
GtkMenu *
|
||
gtk_menu_button_get_popup (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return GTK_MENU (menu_button->priv->popup);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_menu_model:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @menu_model: (allow-none): a #GMenuModel
|
||
*
|
||
* Sets the #GMenuModel from which the #GtkMenuButton:popup property will be
|
||
* filled in, or %NULL to disable the button.
|
||
*
|
||
* The #GtkMenu will be created with gtk_menu_new_from_model(), so actions
|
||
* will be connected as documented there.
|
||
*
|
||
* If #GtkMenuButton:popup is already set, then its content will be lost
|
||
* and replaced by our newly created #GtkMenu.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
void
|
||
gtk_menu_button_set_menu_model (GtkMenuButton *menu_button,
|
||
GMenuModel *menu_model)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
GtkWidget *menu;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (G_IS_MENU_MODEL (menu_model) || menu_model == NULL);
|
||
|
||
priv = menu_button->priv;
|
||
g_clear_object (&priv->model);
|
||
|
||
if (menu_model == NULL)
|
||
{
|
||
gtk_menu_button_set_popup (menu_button, NULL);
|
||
return;
|
||
}
|
||
|
||
priv->model = g_object_ref (menu_model);
|
||
menu = gtk_menu_new_from_model (menu_model);
|
||
gtk_widget_show_all (menu);
|
||
gtk_menu_button_set_popup (menu_button, menu);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_menu_model:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the #GMenuModel used to generate the menu.
|
||
*
|
||
* Returns: (transfer none): a #GMenuModel or %NULL.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
GMenuModel *
|
||
gtk_menu_button_get_menu_model (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return menu_button->priv->model;
|
||
}
|
||
|
||
static void
|
||
set_align_widget_pointer (GtkMenuButton *menu_button,
|
||
GtkWidget *align_widget)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
|
||
priv = menu_button->priv;
|
||
|
||
if (priv->align_widget)
|
||
g_object_remove_weak_pointer (G_OBJECT (priv->align_widget), (gpointer *) &priv->align_widget);
|
||
|
||
priv->align_widget = align_widget;
|
||
|
||
if (align_widget)
|
||
g_object_add_weak_pointer (G_OBJECT (priv->align_widget), (gpointer *) &priv->align_widget);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_align_widget:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @align_widget: (allow-none): a #GtkWidget
|
||
*
|
||
* Sets the #GtkWidget to use to line the menu with when popped up. Note that
|
||
* the @align_widget must contain the #GtkMenuButton itself.
|
||
*
|
||
* Setting it to %NULL means that the popup menu will be aligned with the
|
||
* button itself.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
void
|
||
gtk_menu_button_set_align_widget (GtkMenuButton *menu_button,
|
||
GtkWidget *align_widget)
|
||
{
|
||
GtkMenuButtonPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (align_widget == NULL || gtk_widget_is_ancestor (GTK_WIDGET (menu_button), align_widget));
|
||
|
||
priv = menu_button->priv;
|
||
if (priv->align_widget == align_widget)
|
||
return;
|
||
|
||
set_align_widget_pointer (menu_button, align_widget);
|
||
|
||
g_object_notify (G_OBJECT (menu_button), "align-widget");
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_align_widget:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the parent #GtkWidget to use to line up with menu.
|
||
*
|
||
* Returns: (transfer none): a #GtkWidget value or %NULL.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
GtkWidget *
|
||
gtk_menu_button_get_align_widget (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return menu_button->priv->align_widget;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_direction:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @direction: a #GtkArrowType
|
||
*
|
||
* Sets the direction in which the menu will be popped up, as
|
||
* well as changing the arrow’s direction. The child will not
|
||
* be changed to an arrow if it was customized.
|
||
*
|
||
* If the menu when popped out would have collided with screen edges,
|
||
* we will do our best to keep it inside the screen and fully visible.
|
||
*
|
||
* If you pass %GTK_ARROW_NONE for a @direction, the menu will behave
|
||
* as if you passed %GTK_ARROW_DOWN (although you won’t see any arrows).
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
void
|
||
gtk_menu_button_set_direction (GtkMenuButton *menu_button,
|
||
GtkArrowType direction)
|
||
{
|
||
GtkMenuButtonPrivate *priv = menu_button->priv;
|
||
GtkWidget *child;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
if (priv->arrow_type == direction)
|
||
return;
|
||
|
||
priv->arrow_type = direction;
|
||
|
||
/* Is it custom content? We don't change that */
|
||
child = gtk_bin_get_child (GTK_BIN (menu_button));
|
||
if (priv->arrow_widget != child)
|
||
return;
|
||
|
||
gtk_arrow_set (GTK_ARROW (child), priv->arrow_type, GTK_SHADOW_NONE);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_direction:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the direction the menu will be pointing at when popped up.
|
||
*
|
||
* Returns: a #GtkArrowType value.
|
||
*
|
||
* Since: 3.6
|
||
*/
|
||
GtkArrowType
|
||
gtk_menu_button_get_direction (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), GTK_ARROW_DOWN);
|
||
|
||
return menu_button->priv->arrow_type;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_button_dispose (GObject *object)
|
||
{
|
||
GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (object)->priv;
|
||
|
||
if (priv->popup)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (priv->popup,
|
||
menu_deactivate_cb,
|
||
object);
|
||
gtk_menu_detach (GTK_MENU (priv->popup));
|
||
priv->popup = NULL;
|
||
}
|
||
|
||
set_align_widget_pointer (GTK_MENU_BUTTON (object), NULL);
|
||
|
||
g_clear_object (&priv->model);
|
||
|
||
G_OBJECT_CLASS (gtk_menu_button_parent_class)->dispose (object);
|
||
}
|