forked from AuroraMiddleware/gtk
4816 lines
154 KiB
C
4816 lines
154 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/**
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* SECTION:gtkmenu
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* @Short_description: A menu widget
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* @Title: GtkMenu
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*
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* A #GtkMenu is a #GtkMenuShell that implements a drop down menu
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* consisting of a list of #GtkMenuItem objects which can be navigated
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* and activated by the user to perform application functions.
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*
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* A #GtkMenu is most commonly dropped down by activating a
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* #GtkMenuItem in a #GtkMenuBar or popped up by activating a
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* #GtkMenuItem in another #GtkMenu.
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*
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* A #GtkMenu can also be popped up by activating a #GtkComboBox.
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* Other composite widgets such as the #GtkNotebook can pop up a
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* #GtkMenu as well.
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*
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* Applications can display a #GtkMenu as a popup menu by calling the
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* gtk_menu_popup() function. The example below shows how an application
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* can pop up a menu when the 3rd mouse button is pressed.
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*
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* ## Connecting the popup signal handler.
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*
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* |[<!-- language="C" -->
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* // connect our handler which will popup the menu
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* gesture = gtk_gesture_multi_press_new (window);
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* gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture),
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* GDK_BUTTON_SECONDARY);
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* g_signal_connect (gesture, "event", G_CALLBACK (my_popup_handler), menu);
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* ]|
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*
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* ## Signal handler which displays a popup menu.
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*
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* |[<!-- language="C" -->
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* static void
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* my_popup_handler (GtkGesture *gesture,
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* guint n_press,
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* double x,
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* double y,
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* gpointer data)
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* {
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* GtkMenu *menu = data;
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*
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* gtk_menu_popup (menu, NULL, NULL, NULL, NULL, button, GDK_CURRENT_TIME);
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* }
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* ]|
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*
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* # CSS nodes
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*
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* |[<!-- language="plain" -->
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* menu
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* ├── arrow.top
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* ├── <child>
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* ┊
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* ├── <child>
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* ╰── arrow.bottom
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* ]|
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*
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* The main CSS node of GtkMenu has name menu, and there are two subnodes
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* with name arrow, for scrolling menu arrows. These subnodes get the
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* .top and .bottom style classes.
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*/
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#include "config.h"
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#include "gtkmenuprivate.h"
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#include "gtkaccellabel.h"
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#include "gtkaccelmap.h"
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#include "gtkadjustment.h"
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#include "gtkbindings.h"
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#include "gtkbox.h"
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#include "gtkcheckmenuitemprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtkcssstylepropertyprivate.h"
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#include "gtkdnd.h"
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#include "gtkeventcontrollerscroll.h"
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#include "gtkiconprivate.h"
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#include "gtkintl.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkmenuitemprivate.h"
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#include "gtkmenushellprivate.h"
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#include "gtkprivate.h"
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#include "gtkscrollbar.h"
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#include "gtksettings.h"
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#include "gtksnapshot.h"
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#include "gtkstylecontextprivate.h"
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#include "gtktypebuiltins.h"
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#include "gtkwidgetpath.h"
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#include "gtkwidgetprivate.h"
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#include "gtkwindowgroup.h"
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#include "gtkwindowprivate.h"
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#include "gtkeventcontrollerkey.h"
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#include "a11y/gtkmenuaccessible.h"
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#include "gdk/gdk-private.h"
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#include <gobject/gvaluecollector.h>
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#include <string.h>
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#define NAVIGATION_REGION_OVERSHOOT 50 /* How much the navigation region
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* extends below the submenu
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*/
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#define MENU_SCROLL_STEP1 8
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#define MENU_SCROLL_STEP2 15
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#define MENU_SCROLL_FAST_ZONE 8
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#define MENU_SCROLL_TIMEOUT1 50
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#define MENU_SCROLL_TIMEOUT2 20
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#define MENU_POPUP_DELAY 225
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#define ATTACH_INFO_KEY "gtk-menu-child-attach-info-key"
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#define ATTACHED_MENUS "gtk-attached-menus"
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typedef struct _GtkMenuAttachData GtkMenuAttachData;
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typedef struct _GtkMenuPopdownData GtkMenuPopdownData;
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struct _GtkMenuAttachData
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{
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GtkWidget *attach_widget;
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GtkMenuDetachFunc detacher;
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};
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struct _GtkMenuPopdownData
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{
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GtkMenu *menu;
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GdkDevice *device;
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};
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typedef struct
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{
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gint left_attach;
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gint right_attach;
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gint top_attach;
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gint bottom_attach;
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gint effective_left_attach;
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gint effective_right_attach;
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gint effective_top_attach;
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gint effective_bottom_attach;
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} AttachInfo;
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enum {
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MOVE_SCROLL,
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POPPED_UP,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_ACTIVE,
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PROP_ACCEL_GROUP,
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PROP_ACCEL_PATH,
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PROP_ATTACH_WIDGET,
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PROP_TEAROFF_STATE,
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PROP_TEAROFF_TITLE,
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PROP_MONITOR,
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PROP_RESERVE_TOGGLE_SIZE,
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PROP_ANCHOR_HINTS,
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PROP_RECT_ANCHOR_DX,
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PROP_RECT_ANCHOR_DY,
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PROP_MENU_TYPE_HINT
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};
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enum {
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CHILD_PROP_0,
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CHILD_PROP_LEFT_ATTACH,
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CHILD_PROP_RIGHT_ATTACH,
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CHILD_PROP_TOP_ATTACH,
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CHILD_PROP_BOTTOM_ATTACH
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};
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static void gtk_menu_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_finalize (GObject *object);
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static void gtk_menu_set_child_property(GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_get_child_property(GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_destroy (GtkWidget *widget);
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static void gtk_menu_realize (GtkWidget *widget);
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static void gtk_menu_unrealize (GtkWidget *widget);
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static void gtk_menu_size_allocate (GtkWidget *widget,
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const GtkAllocation *allocation,
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int baseline);
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static void gtk_menu_show (GtkWidget *widget);
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static void gtk_menu_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot);
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static void gtk_menu_motion (GtkEventController *controller,
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double x,
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double y,
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gpointer user_data);
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static void gtk_menu_enter (GtkEventController *controller,
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double x,
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double y,
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gpointer user_data);
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static void gtk_menu_leave (GtkEventController *controller,
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gpointer user_data);
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static void gtk_menu_scroll_to (GtkMenu *menu,
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gint offset);
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static void gtk_menu_grab_notify (GtkWidget *widget,
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gboolean was_grabbed);
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static gboolean gtk_menu_captured_event (GtkWidget *widget,
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GdkEvent *event);
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static void gtk_menu_scroll_controller_scroll (GtkEventControllerScroll *scroll,
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gdouble dx,
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gdouble dy,
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GtkMenu *menu);
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static void gtk_menu_stop_scrolling (GtkMenu *menu);
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static void gtk_menu_remove_scroll_timeout (GtkMenu *menu);
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static gboolean gtk_menu_scroll_timeout (gpointer data);
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static void gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
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GtkWidget *menu_item);
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static void gtk_menu_select_item (GtkMenuShell *menu_shell,
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GtkWidget *menu_item);
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static void gtk_menu_real_insert (GtkMenuShell *menu_shell,
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GtkWidget *child,
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gint position);
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static void gtk_menu_handle_scrolling (GtkMenu *menu,
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gint event_x,
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gint event_y,
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gboolean enter,
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gboolean motion);
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static gboolean gtk_menu_focus (GtkWidget *widget,
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GtkDirectionType direction);
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static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
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static void gtk_menu_move_current (GtkMenuShell *menu_shell,
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GtkMenuDirectionType direction);
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static void gtk_menu_real_move_scroll (GtkMenu *menu,
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GtkScrollType type);
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static void gtk_menu_stop_navigating_submenu (GtkMenu *menu);
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static gboolean gtk_menu_navigating_submenu (GtkMenu *menu,
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gint event_x,
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gint event_y);
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static void gtk_menu_deactivate (GtkMenuShell *menu_shell);
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static void gtk_menu_position (GtkMenu *menu,
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gboolean set_scroll_offset);
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static void gtk_menu_remove (GtkContainer *menu,
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GtkWidget *widget);
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static void menu_grab_transfer_surface_destroy (GtkMenu *menu);
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static GdkSurface *menu_grab_transfer_surface_get (GtkMenu *menu);
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static gboolean gtk_menu_real_can_activate_accel (GtkWidget *widget,
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guint signal_id);
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static void _gtk_menu_refresh_accel_paths (GtkMenu *menu,
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gboolean group_changed);
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static void gtk_menu_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline);
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static void gtk_menu_pressed_cb (GtkGestureMultiPress *gesture,
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int n_press,
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double x,
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double y,
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gpointer user_data);
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static void gtk_menu_released_cb (GtkGestureMultiPress *gesture,
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int n_press,
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double x,
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double y,
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gpointer user_data);
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static const gchar attach_data_key[] = "gtk-menu-attach-data";
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static guint menu_signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE_WITH_PRIVATE (GtkMenu, gtk_menu, GTK_TYPE_MENU_SHELL)
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static void
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menu_queue_resize (GtkMenu *menu)
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{
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GtkMenuPrivate *priv = menu->priv;
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priv->have_layout = FALSE;
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gtk_widget_queue_resize (GTK_WIDGET (menu));
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}
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static void
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attach_info_free (AttachInfo *info)
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{
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g_slice_free (AttachInfo, info);
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}
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static AttachInfo *
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get_attach_info (GtkWidget *child)
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{
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GObject *object = G_OBJECT (child);
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AttachInfo *ai = g_object_get_data (object, ATTACH_INFO_KEY);
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if (!ai)
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{
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ai = g_slice_new0 (AttachInfo);
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g_object_set_data_full (object, I_(ATTACH_INFO_KEY), ai,
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(GDestroyNotify) attach_info_free);
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}
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return ai;
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}
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static gboolean
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is_grid_attached (AttachInfo *ai)
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{
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return (ai->left_attach >= 0 &&
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ai->right_attach >= 0 &&
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ai->top_attach >= 0 &&
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ai->bottom_attach >= 0);
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}
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static void
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menu_ensure_layout (GtkMenu *menu)
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{
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GtkMenuPrivate *priv = menu->priv;
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if (!priv->have_layout)
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{
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GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
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GList *l;
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gchar *row_occupied;
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gint current_row;
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gint max_right_attach;
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gint max_bottom_attach;
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/* Find extents of gridded portion
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*/
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max_right_attach = 1;
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max_bottom_attach = 0;
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||
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for (l = menu_shell->priv->children; l; l = l->next)
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{
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GtkWidget *child = l->data;
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AttachInfo *ai = get_attach_info (child);
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if (is_grid_attached (ai))
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{
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max_bottom_attach = MAX (max_bottom_attach, ai->bottom_attach);
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max_right_attach = MAX (max_right_attach, ai->right_attach);
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}
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||
}
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/* Find empty rows */
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||
row_occupied = g_malloc0 (max_bottom_attach);
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||
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||
for (l = menu_shell->priv->children; l; l = l->next)
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{
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GtkWidget *child = l->data;
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AttachInfo *ai = get_attach_info (child);
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||
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if (is_grid_attached (ai))
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{
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gint i;
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||
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for (i = ai->top_attach; i < ai->bottom_attach; i++)
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row_occupied[i] = TRUE;
|
||
}
|
||
}
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||
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||
/* Lay non-grid-items out in those rows
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||
*/
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||
current_row = 0;
|
||
for (l = menu_shell->priv->children; l; l = l->next)
|
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{
|
||
GtkWidget *child = l->data;
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||
AttachInfo *ai = get_attach_info (child);
|
||
|
||
if (!is_grid_attached (ai))
|
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{
|
||
while (current_row < max_bottom_attach && row_occupied[current_row])
|
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current_row++;
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||
|
||
ai->effective_left_attach = 0;
|
||
ai->effective_right_attach = max_right_attach;
|
||
ai->effective_top_attach = current_row;
|
||
ai->effective_bottom_attach = current_row + 1;
|
||
|
||
current_row++;
|
||
}
|
||
else
|
||
{
|
||
ai->effective_left_attach = ai->left_attach;
|
||
ai->effective_right_attach = ai->right_attach;
|
||
ai->effective_top_attach = ai->top_attach;
|
||
ai->effective_bottom_attach = ai->bottom_attach;
|
||
}
|
||
}
|
||
|
||
g_free (row_occupied);
|
||
|
||
priv->n_rows = MAX (current_row, max_bottom_attach);
|
||
priv->n_columns = max_right_attach;
|
||
priv->have_layout = TRUE;
|
||
}
|
||
}
|
||
|
||
|
||
static gint
|
||
gtk_menu_get_n_columns (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
menu_ensure_layout (menu);
|
||
|
||
return priv->n_columns;
|
||
}
|
||
|
||
static gint
|
||
gtk_menu_get_n_rows (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
menu_ensure_layout (menu);
|
||
|
||
return priv->n_rows;
|
||
}
|
||
|
||
static void
|
||
get_effective_child_attach (GtkWidget *child,
|
||
int *l,
|
||
int *r,
|
||
int *t,
|
||
int *b)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (gtk_widget_get_parent (child));
|
||
AttachInfo *ai;
|
||
|
||
menu_ensure_layout (menu);
|
||
|
||
ai = get_attach_info (child);
|
||
|
||
if (l)
|
||
*l = ai->effective_left_attach;
|
||
if (r)
|
||
*r = ai->effective_right_attach;
|
||
if (t)
|
||
*t = ai->effective_top_attach;
|
||
if (b)
|
||
*b = ai->effective_bottom_attach;
|
||
|
||
}
|
||
|
||
static void
|
||
gtk_menu_class_init (GtkMenuClass *class)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
|
||
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
|
||
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
|
||
GtkMenuShellClass *menu_shell_class = GTK_MENU_SHELL_CLASS (class);
|
||
GtkBindingSet *binding_set;
|
||
|
||
gobject_class->set_property = gtk_menu_set_property;
|
||
gobject_class->get_property = gtk_menu_get_property;
|
||
gobject_class->finalize = gtk_menu_finalize;
|
||
|
||
widget_class->destroy = gtk_menu_destroy;
|
||
widget_class->realize = gtk_menu_realize;
|
||
widget_class->unrealize = gtk_menu_unrealize;
|
||
widget_class->size_allocate = gtk_menu_size_allocate;
|
||
widget_class->show = gtk_menu_show;
|
||
widget_class->snapshot = gtk_menu_snapshot;
|
||
widget_class->focus = gtk_menu_focus;
|
||
widget_class->can_activate_accel = gtk_menu_real_can_activate_accel;
|
||
widget_class->grab_notify = gtk_menu_grab_notify;
|
||
widget_class->measure = gtk_menu_measure;
|
||
|
||
container_class->remove = gtk_menu_remove;
|
||
container_class->get_child_property = gtk_menu_get_child_property;
|
||
container_class->set_child_property = gtk_menu_set_child_property;
|
||
|
||
menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
|
||
menu_shell_class->deactivate = gtk_menu_deactivate;
|
||
menu_shell_class->select_item = gtk_menu_select_item;
|
||
menu_shell_class->insert = gtk_menu_real_insert;
|
||
menu_shell_class->get_popup_delay = gtk_menu_get_popup_delay;
|
||
menu_shell_class->move_current = gtk_menu_move_current;
|
||
|
||
/**
|
||
* GtkMenu::move-scroll:
|
||
* @menu: a #GtkMenu
|
||
* @scroll_type: a #GtkScrollType
|
||
*/
|
||
menu_signals[MOVE_SCROLL] =
|
||
g_signal_new_class_handler (I_("move-scroll"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
||
G_CALLBACK (gtk_menu_real_move_scroll),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1,
|
||
GTK_TYPE_SCROLL_TYPE);
|
||
|
||
/**
|
||
* GtkMenu::popped-up:
|
||
* @menu: the #GtkMenu that popped up
|
||
* @flipped_rect: (nullable): the position of @menu after any possible
|
||
* flipping or %NULL if the backend can't obtain it
|
||
* @final_rect: (nullable): the final position of @menu or %NULL if the
|
||
* backend can't obtain it
|
||
* @flipped_x: %TRUE if the anchors were flipped horizontally
|
||
* @flipped_y: %TRUE if the anchors were flipped vertically
|
||
*
|
||
* Emitted when the position of @menu is finalized after being popped up
|
||
* using gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (), or
|
||
* gtk_menu_popup_at_pointer ().
|
||
*
|
||
* @menu might be flipped over the anchor rectangle in order to keep it
|
||
* on-screen, in which case @flipped_x and @flipped_y will be set to %TRUE
|
||
* accordingly.
|
||
*
|
||
* @flipped_rect is the ideal position of @menu after any possible flipping,
|
||
* but before any possible sliding. @final_rect is @flipped_rect, but possibly
|
||
* translated in the case that flipping is still ineffective in keeping @menu
|
||
* on-screen.
|
||
*
|
||
* 
|
||
*
|
||
* The blue menu is @menu's ideal position, the green menu is @flipped_rect,
|
||
* and the red menu is @final_rect.
|
||
*
|
||
* See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
|
||
* gtk_menu_popup_at_pointer (), #GtkMenu:anchor-hints,
|
||
* #GtkMenu:rect-anchor-dx, #GtkMenu:rect-anchor-dy, and
|
||
* #GtkMenu:menu-type-hint.
|
||
*/
|
||
menu_signals[POPPED_UP] =
|
||
g_signal_new_class_handler (I_("popped-up"),
|
||
G_OBJECT_CLASS_TYPE (gobject_class),
|
||
G_SIGNAL_RUN_FIRST,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
_gtk_marshal_VOID__POINTER_POINTER_BOOLEAN_BOOLEAN,
|
||
G_TYPE_NONE,
|
||
4,
|
||
G_TYPE_POINTER,
|
||
G_TYPE_POINTER,
|
||
G_TYPE_BOOLEAN,
|
||
G_TYPE_BOOLEAN);
|
||
|
||
/**
|
||
* GtkMenu:active:
|
||
*
|
||
* The index of the currently selected menu item, or -1 if no
|
||
* menu item is selected.
|
||
**/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ACTIVE,
|
||
g_param_spec_int ("active",
|
||
P_("Active"),
|
||
P_("The currently selected menu item"),
|
||
-1, G_MAXINT, -1,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkMenu:accel-group:
|
||
*
|
||
* The accel group holding accelerators for the menu.
|
||
**/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ACCEL_GROUP,
|
||
g_param_spec_object ("accel-group",
|
||
P_("Accel Group"),
|
||
P_("The accel group holding accelerators for the menu"),
|
||
GTK_TYPE_ACCEL_GROUP,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkMenu:accel-path:
|
||
*
|
||
* An accel path used to conveniently construct accel paths of child items.
|
||
**/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ACCEL_PATH,
|
||
g_param_spec_string ("accel-path",
|
||
P_("Accel Path"),
|
||
P_("An accel path used to conveniently construct accel paths of child items"),
|
||
NULL,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkMenu:attach-widget:
|
||
*
|
||
* The widget the menu is attached to. Setting this property attaches
|
||
* the menu without a #GtkMenuDetachFunc. If you need to use a detacher,
|
||
* use gtk_menu_attach_to_widget() directly.
|
||
**/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ATTACH_WIDGET,
|
||
g_param_spec_object ("attach-widget",
|
||
P_("Attach Widget"),
|
||
P_("The widget the menu is attached to"),
|
||
GTK_TYPE_WIDGET,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkMenu:monitor:
|
||
*
|
||
* The monitor the menu will be popped up on.
|
||
**/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_MONITOR,
|
||
g_param_spec_int ("monitor",
|
||
P_("Monitor"),
|
||
P_("The monitor the menu will be popped up on"),
|
||
-1, G_MAXINT, -1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkMenu:reserve-toggle-size:
|
||
*
|
||
* A boolean that indicates whether the menu reserves space for
|
||
* toggles and icons, regardless of their actual presence.
|
||
*
|
||
* This property should only be changed from its default value
|
||
* for special-purposes such as tabular menus. Regular menus that
|
||
* are connected to a menu bar or context menus should reserve
|
||
* toggle space for consistency.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_RESERVE_TOGGLE_SIZE,
|
||
g_param_spec_boolean ("reserve-toggle-size",
|
||
P_("Reserve Toggle Size"),
|
||
P_("A boolean that indicates whether the menu reserves space for toggles and icons"),
|
||
TRUE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkMenu:anchor-hints:
|
||
*
|
||
* Positioning hints for aligning the menu relative to a rectangle.
|
||
*
|
||
* These hints determine how the menu should be positioned in the case that
|
||
* the menu would fall off-screen if placed in its ideal position.
|
||
*
|
||
* 
|
||
*
|
||
* For example, %GDK_ANCHOR_FLIP_Y will replace %GDK_GRAVITY_NORTH_WEST with
|
||
* %GDK_GRAVITY_SOUTH_WEST and vice versa if the menu extends beyond the
|
||
* bottom edge of the monitor.
|
||
*
|
||
* See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
|
||
* gtk_menu_popup_at_pointer (), #GtkMenu:rect-anchor-dx,
|
||
* #GtkMenu:rect-anchor-dy, #GtkMenu:menu-type-hint, and #GtkMenu::popped-up.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ANCHOR_HINTS,
|
||
g_param_spec_flags ("anchor-hints",
|
||
P_("Anchor hints"),
|
||
P_("Positioning hints for when the menu might fall off-screen"),
|
||
GDK_TYPE_ANCHOR_HINTS,
|
||
GDK_ANCHOR_FLIP |
|
||
GDK_ANCHOR_SLIDE |
|
||
GDK_ANCHOR_RESIZE,
|
||
G_PARAM_READWRITE |
|
||
G_PARAM_CONSTRUCT |
|
||
G_PARAM_STATIC_NAME |
|
||
G_PARAM_STATIC_NICK |
|
||
G_PARAM_STATIC_BLURB |
|
||
G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkMenu:rect-anchor-dx:
|
||
*
|
||
* Horizontal offset to apply to the menu, i.e. the rectangle or widget
|
||
* anchor.
|
||
*
|
||
* See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
|
||
* gtk_menu_popup_at_pointer (), #GtkMenu:anchor-hints,
|
||
* #GtkMenu:rect-anchor-dy, #GtkMenu:menu-type-hint, and #GtkMenu::popped-up.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_RECT_ANCHOR_DX,
|
||
g_param_spec_int ("rect-anchor-dx",
|
||
P_("Rect anchor dx"),
|
||
P_("Rect anchor horizontal offset"),
|
||
G_MININT,
|
||
G_MAXINT,
|
||
0,
|
||
G_PARAM_READWRITE |
|
||
G_PARAM_CONSTRUCT |
|
||
G_PARAM_STATIC_NAME |
|
||
G_PARAM_STATIC_NICK |
|
||
G_PARAM_STATIC_BLURB |
|
||
G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkMenu:rect-anchor-dy:
|
||
*
|
||
* Vertical offset to apply to the menu, i.e. the rectangle or widget anchor.
|
||
*
|
||
* See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
|
||
* gtk_menu_popup_at_pointer (), #GtkMenu:anchor-hints,
|
||
* #GtkMenu:rect-anchor-dx, #GtkMenu:menu-type-hint, and #GtkMenu::popped-up.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_RECT_ANCHOR_DY,
|
||
g_param_spec_int ("rect-anchor-dy",
|
||
P_("Rect anchor dy"),
|
||
P_("Rect anchor vertical offset"),
|
||
G_MININT,
|
||
G_MAXINT,
|
||
0,
|
||
G_PARAM_READWRITE |
|
||
G_PARAM_CONSTRUCT |
|
||
G_PARAM_STATIC_NAME |
|
||
G_PARAM_STATIC_NICK |
|
||
G_PARAM_STATIC_BLURB |
|
||
G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkMenu:menu-type-hint:
|
||
*
|
||
* The #GdkSurfaceTypeHint to use for the menu's #GdkSurface.
|
||
*
|
||
* See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
|
||
* gtk_menu_popup_at_pointer (), #GtkMenu:anchor-hints,
|
||
* #GtkMenu:rect-anchor-dx, #GtkMenu:rect-anchor-dy, and #GtkMenu::popped-up.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_MENU_TYPE_HINT,
|
||
g_param_spec_enum ("menu-type-hint",
|
||
P_("Menu type hint"),
|
||
P_("Menu window type hint"),
|
||
GDK_TYPE_SURFACE_TYPE_HINT,
|
||
GDK_SURFACE_TYPE_HINT_POPUP_MENU,
|
||
G_PARAM_READWRITE |
|
||
G_PARAM_CONSTRUCT |
|
||
G_PARAM_STATIC_NAME |
|
||
G_PARAM_STATIC_NICK |
|
||
G_PARAM_STATIC_BLURB |
|
||
G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
gtk_container_class_install_child_property (container_class,
|
||
CHILD_PROP_LEFT_ATTACH,
|
||
g_param_spec_int ("left-attach",
|
||
P_("Left Attach"),
|
||
P_("The column number to attach the left side of the child to"),
|
||
-1, INT_MAX, -1,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
gtk_container_class_install_child_property (container_class,
|
||
CHILD_PROP_RIGHT_ATTACH,
|
||
g_param_spec_int ("right-attach",
|
||
P_("Right Attach"),
|
||
P_("The column number to attach the right side of the child to"),
|
||
-1, INT_MAX, -1,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
gtk_container_class_install_child_property (container_class,
|
||
CHILD_PROP_TOP_ATTACH,
|
||
g_param_spec_int ("top-attach",
|
||
P_("Top Attach"),
|
||
P_("The row number to attach the top of the child to"),
|
||
-1, INT_MAX, -1,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
gtk_container_class_install_child_property (container_class,
|
||
CHILD_PROP_BOTTOM_ATTACH,
|
||
g_param_spec_int ("bottom-attach",
|
||
P_("Bottom Attach"),
|
||
P_("The row number to attach the bottom of the child to"),
|
||
-1, INT_MAX, -1,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
binding_set = gtk_binding_set_by_class (class);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Up, 0,
|
||
I_("move-current"), 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_PREV);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Up, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_PREV);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Down, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_NEXT);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Down, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_NEXT);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Left, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_PARENT);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Left, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_PARENT);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Right, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_CHILD);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Right, 0,
|
||
"move-current", 1,
|
||
GTK_TYPE_MENU_DIRECTION_TYPE,
|
||
GTK_MENU_DIR_CHILD);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Home, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_START);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Home, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_START);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_End, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_END);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_End, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_END);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Page_Up, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_PAGE_UP);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Page_Up, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_PAGE_UP);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_Page_Down, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_PAGE_DOWN);
|
||
gtk_binding_entry_add_signal (binding_set,
|
||
GDK_KEY_KP_Page_Down, 0,
|
||
"move-scroll", 1,
|
||
GTK_TYPE_SCROLL_TYPE,
|
||
GTK_SCROLL_PAGE_DOWN);
|
||
|
||
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_MENU_ACCESSIBLE);
|
||
gtk_widget_class_set_css_name (widget_class, I_("menu"));
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_menu_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ACTIVE:
|
||
gtk_menu_set_active (menu, g_value_get_int (value));
|
||
break;
|
||
case PROP_ACCEL_GROUP:
|
||
gtk_menu_set_accel_group (menu, g_value_get_object (value));
|
||
break;
|
||
case PROP_ACCEL_PATH:
|
||
gtk_menu_set_accel_path (menu, g_value_get_string (value));
|
||
break;
|
||
case PROP_ATTACH_WIDGET:
|
||
{
|
||
GtkWidget *widget;
|
||
|
||
widget = gtk_menu_get_attach_widget (menu);
|
||
if (widget)
|
||
gtk_menu_detach (menu);
|
||
|
||
widget = (GtkWidget*) g_value_get_object (value);
|
||
if (widget)
|
||
gtk_menu_attach_to_widget (menu, widget, NULL);
|
||
}
|
||
break;
|
||
case PROP_MONITOR:
|
||
gtk_menu_set_monitor (menu, g_value_get_int (value));
|
||
break;
|
||
case PROP_RESERVE_TOGGLE_SIZE:
|
||
gtk_menu_set_reserve_toggle_size (menu, g_value_get_boolean (value));
|
||
break;
|
||
case PROP_ANCHOR_HINTS:
|
||
if (menu->priv->anchor_hints != g_value_get_flags (value))
|
||
{
|
||
menu->priv->anchor_hints = g_value_get_flags (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
case PROP_RECT_ANCHOR_DX:
|
||
if (menu->priv->rect_anchor_dx != g_value_get_int (value))
|
||
{
|
||
menu->priv->rect_anchor_dx = g_value_get_int (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
case PROP_RECT_ANCHOR_DY:
|
||
if (menu->priv->rect_anchor_dy != g_value_get_int (value))
|
||
{
|
||
menu->priv->rect_anchor_dy = g_value_get_int (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
case PROP_MENU_TYPE_HINT:
|
||
if (menu->priv->menu_type_hint != g_value_get_enum (value))
|
||
{
|
||
menu->priv->menu_type_hint = g_value_get_enum (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ACTIVE:
|
||
g_value_set_int (value, g_list_index (GTK_MENU_SHELL (menu)->priv->children, gtk_menu_get_active (menu)));
|
||
break;
|
||
case PROP_ACCEL_GROUP:
|
||
g_value_set_object (value, gtk_menu_get_accel_group (menu));
|
||
break;
|
||
case PROP_ACCEL_PATH:
|
||
g_value_set_string (value, gtk_menu_get_accel_path (menu));
|
||
break;
|
||
case PROP_ATTACH_WIDGET:
|
||
g_value_set_object (value, gtk_menu_get_attach_widget (menu));
|
||
break;
|
||
case PROP_MONITOR:
|
||
g_value_set_int (value, gtk_menu_get_monitor (menu));
|
||
break;
|
||
case PROP_RESERVE_TOGGLE_SIZE:
|
||
g_value_set_boolean (value, gtk_menu_get_reserve_toggle_size (menu));
|
||
break;
|
||
case PROP_ANCHOR_HINTS:
|
||
g_value_set_flags (value, menu->priv->anchor_hints);
|
||
break;
|
||
case PROP_RECT_ANCHOR_DX:
|
||
g_value_set_int (value, menu->priv->rect_anchor_dx);
|
||
break;
|
||
case PROP_RECT_ANCHOR_DY:
|
||
g_value_set_int (value, menu->priv->rect_anchor_dy);
|
||
break;
|
||
case PROP_MENU_TYPE_HINT:
|
||
g_value_set_enum (value, menu->priv->menu_type_hint);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_set_child_property (GtkContainer *container,
|
||
GtkWidget *child,
|
||
guint property_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (container);
|
||
AttachInfo *ai = get_attach_info (child);
|
||
|
||
switch (property_id)
|
||
{
|
||
case CHILD_PROP_LEFT_ATTACH:
|
||
ai->left_attach = g_value_get_int (value);
|
||
break;
|
||
case CHILD_PROP_RIGHT_ATTACH:
|
||
ai->right_attach = g_value_get_int (value);
|
||
break;
|
||
case CHILD_PROP_TOP_ATTACH:
|
||
ai->top_attach = g_value_get_int (value);
|
||
break;
|
||
case CHILD_PROP_BOTTOM_ATTACH:
|
||
ai->bottom_attach = g_value_get_int (value);
|
||
break;
|
||
|
||
default:
|
||
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
|
||
return;
|
||
}
|
||
|
||
menu_queue_resize (menu);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_get_child_property (GtkContainer *container,
|
||
GtkWidget *child,
|
||
guint property_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
AttachInfo *ai = get_attach_info (child);
|
||
|
||
switch (property_id)
|
||
{
|
||
case CHILD_PROP_LEFT_ATTACH:
|
||
g_value_set_int (value, ai->left_attach);
|
||
break;
|
||
case CHILD_PROP_RIGHT_ATTACH:
|
||
g_value_set_int (value, ai->right_attach);
|
||
break;
|
||
case CHILD_PROP_TOP_ATTACH:
|
||
g_value_set_int (value, ai->top_attach);
|
||
break;
|
||
case CHILD_PROP_BOTTOM_ATTACH:
|
||
g_value_set_int (value, ai->bottom_attach);
|
||
break;
|
||
|
||
default:
|
||
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
|
||
return;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_init (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
|
||
priv = gtk_menu_get_instance_private (menu);
|
||
|
||
menu->priv = priv;
|
||
|
||
priv->toplevel = gtk_window_new (GTK_WINDOW_POPUP);
|
||
gtk_container_add (GTK_CONTAINER (priv->toplevel), GTK_WIDGET (menu));
|
||
g_signal_connect (priv->toplevel, "destroy", G_CALLBACK (gtk_widget_destroyed), &priv->toplevel);
|
||
gtk_window_set_resizable (GTK_WINDOW (priv->toplevel), FALSE);
|
||
gtk_window_set_mnemonic_modifier (GTK_WINDOW (priv->toplevel), 0);
|
||
|
||
_gtk_window_request_csd (GTK_WINDOW (priv->toplevel));
|
||
gtk_style_context_add_class (gtk_widget_get_style_context (priv->toplevel),
|
||
GTK_STYLE_CLASS_POPUP);
|
||
|
||
/* Refloat the menu, so that reference counting for the menu isn't
|
||
* affected by it being a child of the toplevel
|
||
*/
|
||
g_object_force_floating (G_OBJECT (menu));
|
||
priv->needs_destruction_ref = TRUE;
|
||
|
||
priv->monitor_num = -1;
|
||
priv->drag_start_y = -1;
|
||
|
||
priv->anchor_hints = GDK_ANCHOR_FLIP | GDK_ANCHOR_SLIDE | GDK_ANCHOR_RESIZE;
|
||
priv->rect_anchor_dx = 0;
|
||
priv->rect_anchor_dy = 0;
|
||
priv->menu_type_hint = GDK_SURFACE_TYPE_HINT_POPUP_MENU;
|
||
|
||
_gtk_widget_set_captured_event_handler (GTK_WIDGET (menu), gtk_menu_captured_event);
|
||
|
||
|
||
priv->top_arrow_widget = gtk_icon_new ("arrow");
|
||
gtk_style_context_add_class (gtk_widget_get_style_context (priv->top_arrow_widget),
|
||
GTK_STYLE_CLASS_TOP);
|
||
gtk_widget_set_parent (priv->top_arrow_widget, GTK_WIDGET (menu));
|
||
gtk_widget_hide (priv->top_arrow_widget);
|
||
|
||
priv->bottom_arrow_widget = gtk_icon_new ("arrow");
|
||
gtk_style_context_add_class (gtk_widget_get_style_context (priv->bottom_arrow_widget),
|
||
GTK_STYLE_CLASS_BOTTOM);
|
||
gtk_widget_set_parent (priv->bottom_arrow_widget, GTK_WIDGET (menu));
|
||
gtk_widget_hide (priv->bottom_arrow_widget);
|
||
|
||
priv->click_gesture = gtk_gesture_multi_press_new (GTK_WIDGET (menu));
|
||
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (priv->click_gesture), FALSE);
|
||
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->click_gesture), 0);
|
||
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->click_gesture), GTK_PHASE_BUBBLE);
|
||
g_signal_connect (priv->click_gesture, "pressed", G_CALLBACK (gtk_menu_pressed_cb), menu);
|
||
g_signal_connect (priv->click_gesture, "released", G_CALLBACK (gtk_menu_released_cb), menu);
|
||
|
||
priv->scroll_controller =
|
||
gtk_event_controller_scroll_new (GTK_WIDGET (menu),
|
||
GTK_EVENT_CONTROLLER_SCROLL_VERTICAL);
|
||
g_signal_connect (priv->scroll_controller, "scroll",
|
||
G_CALLBACK (gtk_menu_scroll_controller_scroll), menu);
|
||
|
||
priv->motion_controller =
|
||
gtk_event_controller_motion_new (GTK_WIDGET (menu));
|
||
g_signal_connect (priv->motion_controller, "enter", G_CALLBACK (gtk_menu_enter), menu);
|
||
g_signal_connect (priv->motion_controller, "motion", G_CALLBACK (gtk_menu_motion), menu);
|
||
g_signal_connect (priv->motion_controller, "leave", G_CALLBACK (gtk_menu_leave), menu);
|
||
|
||
priv->key_controller =
|
||
gtk_event_controller_key_new (GTK_WIDGET (menu));
|
||
g_signal_connect_swapped (priv->key_controller, "key-pressed",
|
||
G_CALLBACK (gtk_menu_stop_navigating_submenu), menu);
|
||
}
|
||
|
||
static void
|
||
moved_to_rect_cb (GdkSurface *surface,
|
||
const GdkRectangle *flipped_rect,
|
||
const GdkRectangle *final_rect,
|
||
gboolean flipped_x,
|
||
gboolean flipped_y,
|
||
GtkMenu *menu)
|
||
{
|
||
g_signal_emit (menu,
|
||
menu_signals[POPPED_UP],
|
||
0,
|
||
flipped_rect,
|
||
final_rect,
|
||
flipped_x,
|
||
flipped_y);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_destroy (GtkWidget *widget)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (widget);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkMenuAttachData *data;
|
||
|
||
gtk_menu_remove_scroll_timeout (menu);
|
||
|
||
data = g_object_get_data (G_OBJECT (widget), attach_data_key);
|
||
if (data)
|
||
gtk_menu_detach (menu);
|
||
|
||
gtk_menu_stop_navigating_submenu (menu);
|
||
|
||
g_clear_object (&priv->old_active_menu_item);
|
||
|
||
/* Add back the reference count for being a child */
|
||
if (priv->needs_destruction_ref)
|
||
{
|
||
priv->needs_destruction_ref = FALSE;
|
||
g_object_ref (widget);
|
||
}
|
||
|
||
g_clear_object (&priv->accel_group);
|
||
|
||
if (priv->toplevel)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (priv->toplevel, moved_to_rect_cb, menu);
|
||
gtk_widget_destroy (priv->toplevel);
|
||
}
|
||
|
||
g_clear_pointer (&priv->heights, g_free);
|
||
|
||
if (priv->position_func_data_destroy)
|
||
{
|
||
priv->position_func_data_destroy (priv->position_func_data);
|
||
priv->position_func_data = NULL;
|
||
priv->position_func_data_destroy = NULL;
|
||
}
|
||
|
||
GTK_WIDGET_CLASS (gtk_menu_parent_class)->destroy (widget);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_finalize (GObject *object)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (object);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
gtk_widget_unparent (priv->top_arrow_widget);
|
||
gtk_widget_unparent (priv->bottom_arrow_widget);
|
||
g_clear_object (&priv->click_gesture);
|
||
g_clear_object (&priv->scroll_controller);
|
||
g_clear_object (&priv->motion_controller);
|
||
g_clear_object (&priv->key_controller);
|
||
|
||
G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
menu_change_display (GtkMenu *menu,
|
||
GdkDisplay *new_display)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
if (new_display == gtk_widget_get_display (GTK_WIDGET (menu)))
|
||
return;
|
||
|
||
gtk_window_set_display (GTK_WINDOW (priv->toplevel), new_display);
|
||
priv->monitor_num = -1;
|
||
}
|
||
|
||
static void
|
||
attach_widget_display_changed (GtkWidget *attach_widget,
|
||
GdkDisplay *previous_display,
|
||
GtkMenu *menu)
|
||
{
|
||
if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-display"))
|
||
menu_change_display (menu, gtk_widget_get_display (attach_widget));
|
||
}
|
||
|
||
static void
|
||
menu_toplevel_attached_to (GtkWindow *toplevel, GParamSpec *pspec, GtkMenu *menu)
|
||
{
|
||
GtkMenuAttachData *data;
|
||
|
||
data = g_object_get_data (G_OBJECT (menu), attach_data_key);
|
||
|
||
g_return_if_fail (data);
|
||
|
||
gtk_menu_detach (menu);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_attach_to_widget:
|
||
* @menu: a #GtkMenu
|
||
* @attach_widget: the #GtkWidget that the menu will be attached to
|
||
* @detacher: (scope async)(allow-none): the user supplied callback function
|
||
* that will be called when the menu calls gtk_menu_detach()
|
||
*
|
||
* Attaches the menu to the widget and provides a callback function
|
||
* that will be invoked when the menu calls gtk_menu_detach() during
|
||
* its destruction.
|
||
*
|
||
* If the menu is attached to the widget then it will be destroyed
|
||
* when the widget is destroyed, as if it was a child widget.
|
||
* An attached menu will also move between screens correctly if the
|
||
* widgets moves between screens.
|
||
*/
|
||
void
|
||
gtk_menu_attach_to_widget (GtkMenu *menu,
|
||
GtkWidget *attach_widget,
|
||
GtkMenuDetachFunc detacher)
|
||
{
|
||
GtkMenuAttachData *data;
|
||
GList *list;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (GTK_IS_WIDGET (attach_widget));
|
||
|
||
/* keep this function in sync with gtk_widget_set_parent() */
|
||
data = g_object_get_data (G_OBJECT (menu), attach_data_key);
|
||
if (data)
|
||
{
|
||
g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
|
||
g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
|
||
return;
|
||
}
|
||
|
||
g_object_ref_sink (menu);
|
||
|
||
data = g_slice_new (GtkMenuAttachData);
|
||
data->attach_widget = attach_widget;
|
||
|
||
g_signal_connect (attach_widget, "display-changed",
|
||
G_CALLBACK (attach_widget_display_changed), menu);
|
||
attach_widget_display_changed (attach_widget, NULL, menu);
|
||
|
||
data->detacher = detacher;
|
||
g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
|
||
list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
|
||
if (!g_list_find (list, menu))
|
||
list = g_list_prepend (list, menu);
|
||
|
||
g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list,
|
||
(GDestroyNotify) g_list_free);
|
||
|
||
/* Attach the widget to the toplevel window. */
|
||
gtk_window_set_attached_to (GTK_WINDOW (menu->priv->toplevel), attach_widget);
|
||
g_signal_connect (GTK_WINDOW (menu->priv->toplevel), "notify::attached-to",
|
||
G_CALLBACK (menu_toplevel_attached_to), menu);
|
||
|
||
_gtk_widget_update_parent_muxer (GTK_WIDGET (menu));
|
||
|
||
g_object_notify (G_OBJECT (menu), "attach-widget");
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_attach_widget:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Returns the #GtkWidget that the menu is attached to.
|
||
*
|
||
* Returns: (transfer none): the #GtkWidget that the menu is attached to
|
||
*/
|
||
GtkWidget*
|
||
gtk_menu_get_attach_widget (GtkMenu *menu)
|
||
{
|
||
GtkMenuAttachData *data;
|
||
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
|
||
|
||
data = g_object_get_data (G_OBJECT (menu), attach_data_key);
|
||
if (data)
|
||
return data->attach_widget;
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_detach:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Detaches the menu from the widget to which it had been attached.
|
||
* This function will call the callback function, @detacher, provided
|
||
* when the gtk_menu_attach_to_widget() function was called.
|
||
*/
|
||
void
|
||
gtk_menu_detach (GtkMenu *menu)
|
||
{
|
||
GtkWindow *toplevel;
|
||
GtkMenuAttachData *data;
|
||
GList *list;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
toplevel = GTK_WINDOW (menu->priv->toplevel);
|
||
|
||
/* keep this function in sync with gtk_widget_unparent() */
|
||
data = g_object_get_data (G_OBJECT (menu), attach_data_key);
|
||
if (!data)
|
||
{
|
||
g_warning ("gtk_menu_detach(): menu is not attached");
|
||
return;
|
||
}
|
||
g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
|
||
|
||
/* Detach the toplevel window. */
|
||
if (toplevel)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (toplevel,
|
||
(gpointer) menu_toplevel_attached_to,
|
||
menu);
|
||
if (gtk_window_get_attached_to (toplevel) == data->attach_widget)
|
||
gtk_window_set_attached_to (toplevel, NULL);
|
||
}
|
||
|
||
g_signal_handlers_disconnect_by_func (data->attach_widget,
|
||
(gpointer) attach_widget_display_changed,
|
||
menu);
|
||
|
||
if (data->detacher)
|
||
data->detacher (data->attach_widget, menu);
|
||
list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
|
||
list = g_list_remove (list, menu);
|
||
if (list)
|
||
g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list,
|
||
(GDestroyNotify) g_list_free);
|
||
else
|
||
g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
|
||
|
||
if (gtk_widget_get_realized (GTK_WIDGET (menu)))
|
||
gtk_widget_unrealize (GTK_WIDGET (menu));
|
||
|
||
g_slice_free (GtkMenuAttachData, data);
|
||
|
||
_gtk_widget_update_parent_muxer (GTK_WIDGET (menu));
|
||
|
||
g_object_notify (G_OBJECT (menu), "attach-widget");
|
||
g_object_unref (menu);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_remove (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (container);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
/* Clear out old_active_menu_item if it matches the item we are removing */
|
||
if (priv->old_active_menu_item == widget)
|
||
g_clear_object (&priv->old_active_menu_item);
|
||
|
||
GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
|
||
|
||
g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
|
||
|
||
menu_queue_resize (menu);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_new:
|
||
*
|
||
* Creates a new #GtkMenu
|
||
*
|
||
* Returns: a new #GtkMenu
|
||
*/
|
||
GtkWidget*
|
||
gtk_menu_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_MENU, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_real_insert (GtkMenuShell *menu_shell,
|
||
GtkWidget *child,
|
||
gint position)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (menu_shell);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
AttachInfo *ai = get_attach_info (child);
|
||
|
||
ai->left_attach = -1;
|
||
ai->right_attach = -1;
|
||
ai->top_attach = -1;
|
||
ai->bottom_attach = -1;
|
||
|
||
gtk_widget_insert_before (child, GTK_WIDGET (menu), priv->bottom_arrow_widget);
|
||
|
||
GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
|
||
|
||
menu_queue_resize (menu);
|
||
}
|
||
|
||
static gboolean
|
||
popup_grab_on_surface (GdkSurface *surface,
|
||
GdkDevice *pointer)
|
||
{
|
||
GdkGrabStatus status;
|
||
GdkSeat *seat;
|
||
|
||
seat = gdk_device_get_seat (pointer);
|
||
status = gdk_seat_grab (seat, surface,
|
||
GDK_SEAT_CAPABILITY_ALL, TRUE,
|
||
NULL, NULL, NULL, NULL);
|
||
|
||
return status == GDK_GRAB_SUCCESS;
|
||
}
|
||
|
||
static void
|
||
associate_menu_grab_transfer_surface (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GdkSurface *toplevel_surface;
|
||
GdkSurface *transfer_surface;
|
||
|
||
toplevel_surface = gtk_widget_get_surface (priv->toplevel);
|
||
transfer_surface = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-surface");
|
||
|
||
if (toplevel_surface == NULL || transfer_surface == NULL)
|
||
return;
|
||
|
||
g_object_set_data (G_OBJECT (toplevel_surface), I_("gdk-attached-grab-surface"), transfer_surface);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_popup_internal (GtkMenu *menu,
|
||
GdkDevice *device,
|
||
GtkWidget *parent_menu_shell,
|
||
GtkWidget *parent_menu_item,
|
||
GtkMenuPositionFunc func,
|
||
gpointer data,
|
||
GDestroyNotify destroy,
|
||
guint button,
|
||
guint32 activate_time)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *widget;
|
||
GtkWidget *xgrab_shell;
|
||
GtkWidget *parent;
|
||
GdkEvent *current_event;
|
||
GtkMenuShell *menu_shell;
|
||
gboolean grab_keyboard;
|
||
GtkWidget *parent_toplevel;
|
||
GdkDevice *pointer, *source_device = NULL;
|
||
GdkDisplay *display;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (device == NULL || GDK_IS_DEVICE (device));
|
||
|
||
display = gtk_widget_get_display (GTK_WIDGET (menu));
|
||
|
||
if (device == NULL)
|
||
device = gtk_get_current_event_device ();
|
||
|
||
if (device && gdk_device_get_display (device) != display)
|
||
device = NULL;
|
||
|
||
if (device == NULL)
|
||
device = gdk_seat_get_pointer (gdk_display_get_default_seat (display));
|
||
|
||
widget = GTK_WIDGET (menu);
|
||
menu_shell = GTK_MENU_SHELL (menu);
|
||
|
||
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
|
||
pointer = gdk_device_get_associated_device (device);
|
||
else
|
||
pointer = device;
|
||
|
||
menu_shell->priv->parent_menu_shell = parent_menu_shell;
|
||
|
||
priv->seen_item_enter = FALSE;
|
||
|
||
/* Find the last viewable ancestor, and make an X grab on it
|
||
*/
|
||
parent = GTK_WIDGET (menu);
|
||
xgrab_shell = NULL;
|
||
while (parent)
|
||
{
|
||
gboolean viewable = TRUE;
|
||
GtkWidget *tmp = parent;
|
||
|
||
while (tmp)
|
||
{
|
||
if (!gtk_widget_get_mapped (tmp))
|
||
{
|
||
viewable = FALSE;
|
||
break;
|
||
}
|
||
tmp = gtk_widget_get_parent (tmp);
|
||
}
|
||
|
||
if (viewable)
|
||
xgrab_shell = parent;
|
||
|
||
parent = GTK_MENU_SHELL (parent)->priv->parent_menu_shell;
|
||
}
|
||
|
||
/* We want to receive events generated when we map the menu;
|
||
* unfortunately, since there is probably already an implicit
|
||
* grab in place from the button that the user used to pop up
|
||
* the menu, we won't receive then -- in particular, the EnterNotify
|
||
* when the menu pops up under the pointer.
|
||
*
|
||
* If we are grabbing on a parent menu shell, no problem; just grab
|
||
* on that menu shell first before popping up the window with
|
||
* owner_events = TRUE.
|
||
*
|
||
* When grabbing on the menu itself, things get more convoluted --
|
||
* we do an explicit grab on a specially created window with
|
||
* owner_events = TRUE, which we override further down with a
|
||
* grab on the menu. (We can't grab on the menu until it is mapped;
|
||
* we probably could just leave the grab on the other window,
|
||
* with a little reorganization of the code in gtkmenu*).
|
||
*/
|
||
grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
|
||
gtk_window_set_accept_focus (GTK_WINDOW (priv->toplevel), grab_keyboard);
|
||
|
||
if (xgrab_shell && xgrab_shell != widget)
|
||
{
|
||
if (popup_grab_on_surface (gtk_widget_get_surface (xgrab_shell), pointer))
|
||
{
|
||
_gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (xgrab_shell), pointer);
|
||
GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab = TRUE;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
GdkSurface *transfer_surface;
|
||
|
||
xgrab_shell = widget;
|
||
transfer_surface = menu_grab_transfer_surface_get (menu);
|
||
if (popup_grab_on_surface (transfer_surface, pointer))
|
||
{
|
||
_gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (xgrab_shell), pointer);
|
||
GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab = TRUE;
|
||
}
|
||
}
|
||
|
||
if (!GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab)
|
||
{
|
||
/* We failed to make our pointer/keyboard grab.
|
||
* Rather than leaving the user with a stuck up window,
|
||
* we just abort here. Presumably the user will try again.
|
||
*/
|
||
menu_shell->priv->parent_menu_shell = NULL;
|
||
menu_grab_transfer_surface_destroy (menu);
|
||
return;
|
||
}
|
||
|
||
_gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (menu), pointer);
|
||
menu_shell->priv->active = TRUE;
|
||
menu_shell->priv->button = button;
|
||
|
||
/* If we are popping up the menu from something other than, a button
|
||
* press then, as a heuristic, we ignore enter events for the menu
|
||
* until we get a MOTION_NOTIFY.
|
||
*/
|
||
|
||
current_event = gtk_get_current_event ();
|
||
if (current_event)
|
||
{
|
||
GdkEventType event_type = gdk_event_get_event_type (current_event);
|
||
|
||
if ((event_type != GDK_BUTTON_PRESS) &&
|
||
(event_type != GDK_ENTER_NOTIFY))
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
|
||
source_device = gdk_event_get_source_device (current_event);
|
||
g_object_unref (current_event);
|
||
}
|
||
else
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
|
||
parent_toplevel = NULL;
|
||
if (parent_menu_shell)
|
||
parent_toplevel = gtk_widget_get_toplevel (parent_menu_shell);
|
||
else if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-display"))
|
||
{
|
||
GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
|
||
if (attach_widget)
|
||
parent_toplevel = gtk_widget_get_toplevel (attach_widget);
|
||
}
|
||
|
||
/* Set transient for to get the right window group and parent */
|
||
if (GTK_IS_WINDOW (parent_toplevel))
|
||
gtk_window_set_transient_for (GTK_WINDOW (priv->toplevel),
|
||
GTK_WINDOW (parent_toplevel));
|
||
|
||
priv->parent_menu_item = parent_menu_item;
|
||
priv->position_func = func;
|
||
priv->position_func_data = data;
|
||
priv->position_func_data_destroy = destroy;
|
||
menu_shell->priv->activate_time = activate_time;
|
||
|
||
/* We need to show the menu here rather in the init function
|
||
* because code expects to be able to tell if the menu is onscreen
|
||
* by looking at gtk_widget_get_visible (menu)
|
||
*/
|
||
gtk_widget_show (GTK_WIDGET (menu));
|
||
|
||
/* Position the menu, possibly changing the size request
|
||
*/
|
||
gtk_menu_position (menu, TRUE);
|
||
|
||
associate_menu_grab_transfer_surface (menu);
|
||
|
||
gtk_menu_scroll_to (menu, priv->scroll_offset);
|
||
|
||
/* if no item is selected, select the first one */
|
||
if (!menu_shell->priv->active_menu_item &&
|
||
source_device && gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN)
|
||
gtk_menu_shell_select_first (menu_shell, TRUE);
|
||
|
||
/* Once everything is set up correctly, map the toplevel */
|
||
gtk_widget_show (priv->toplevel);
|
||
|
||
if (xgrab_shell == widget)
|
||
popup_grab_on_surface (gtk_widget_get_surface (widget), pointer); /* Should always succeed */
|
||
|
||
gtk_grab_add (GTK_WIDGET (menu));
|
||
|
||
if (parent_menu_shell)
|
||
{
|
||
gboolean keyboard_mode;
|
||
|
||
keyboard_mode = _gtk_menu_shell_get_keyboard_mode (GTK_MENU_SHELL (parent_menu_shell));
|
||
_gtk_menu_shell_set_keyboard_mode (menu_shell, keyboard_mode);
|
||
}
|
||
else if (menu_shell->priv->button == 0) /* a keynav-activated context menu */
|
||
_gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
|
||
|
||
_gtk_menu_shell_update_mnemonics (menu_shell);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popup_for_device:
|
||
* @menu: a #GtkMenu
|
||
* @device: (allow-none): a #GdkDevice
|
||
* @parent_menu_shell: (allow-none): the menu shell containing the triggering
|
||
* menu item, or %NULL
|
||
* @parent_menu_item: (allow-none): the menu item whose activation triggered
|
||
* the popup, or %NULL
|
||
* @func: (allow-none): a user supplied function used to position the menu,
|
||
* or %NULL
|
||
* @data: (allow-none): user supplied data to be passed to @func
|
||
* @destroy: (allow-none): destroy notify for @data
|
||
* @button: the mouse button which was pressed to initiate the event
|
||
* @activate_time: the time at which the activation event occurred
|
||
*
|
||
* Displays a menu and makes it available for selection.
|
||
*
|
||
* Applications can use this function to display context-sensitive menus,
|
||
* and will typically supply %NULL for the @parent_menu_shell,
|
||
* @parent_menu_item, @func, @data and @destroy parameters. The default
|
||
* menu positioning function will position the menu at the current position
|
||
* of @device (or its corresponding pointer).
|
||
*
|
||
* The @button parameter should be the mouse button pressed to initiate
|
||
* the menu popup. If the menu popup was initiated by something other than
|
||
* a mouse button press, such as a mouse button release or a keypress,
|
||
* @button should be 0.
|
||
*
|
||
* The @activate_time parameter is used to conflict-resolve initiation of
|
||
* concurrent requests for mouse/keyboard grab requests. To function
|
||
* properly, this needs to be the time stamp of the user event (such as
|
||
* a mouse click or key press) that caused the initiation of the popup.
|
||
* Only if no such event is available, gtk_get_current_event_time() can
|
||
* be used instead.
|
||
*/
|
||
void
|
||
gtk_menu_popup_for_device (GtkMenu *menu,
|
||
GdkDevice *device,
|
||
GtkWidget *parent_menu_shell,
|
||
GtkWidget *parent_menu_item,
|
||
GtkMenuPositionFunc func,
|
||
gpointer data,
|
||
GDestroyNotify destroy,
|
||
guint button,
|
||
guint32 activate_time)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
priv = menu->priv;
|
||
priv->rect_surface = NULL;
|
||
priv->widget = NULL;
|
||
|
||
gtk_menu_popup_internal (menu,
|
||
device,
|
||
parent_menu_shell,
|
||
parent_menu_item,
|
||
func,
|
||
data,
|
||
destroy,
|
||
button,
|
||
activate_time);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popup:
|
||
* @menu: a #GtkMenu
|
||
* @parent_menu_shell: (allow-none): the menu shell containing the
|
||
* triggering menu item, or %NULL
|
||
* @parent_menu_item: (allow-none): the menu item whose activation
|
||
* triggered the popup, or %NULL
|
||
* @func: (scope async) (allow-none): a user supplied function used to position
|
||
* the menu, or %NULL
|
||
* @data: user supplied data to be passed to @func.
|
||
* @button: the mouse button which was pressed to initiate the event.
|
||
* @activate_time: the time at which the activation event occurred.
|
||
*
|
||
* Displays a menu and makes it available for selection.
|
||
*
|
||
* Applications can use this function to display context-sensitive
|
||
* menus, and will typically supply %NULL for the @parent_menu_shell,
|
||
* @parent_menu_item, @func and @data parameters. The default menu
|
||
* positioning function will position the menu at the current mouse
|
||
* cursor position.
|
||
*
|
||
* The @button parameter should be the mouse button pressed to initiate
|
||
* the menu popup. If the menu popup was initiated by something other
|
||
* than a mouse button press, such as a mouse button release or a keypress,
|
||
* @button should be 0.
|
||
*
|
||
* The @activate_time parameter is used to conflict-resolve initiation
|
||
* of concurrent requests for mouse/keyboard grab requests. To function
|
||
* properly, this needs to be the timestamp of the user event (such as
|
||
* a mouse click or key press) that caused the initiation of the popup.
|
||
* Only if no such event is available, gtk_get_current_event_time() can
|
||
* be used instead.
|
||
*/
|
||
void
|
||
gtk_menu_popup (GtkMenu *menu,
|
||
GtkWidget *parent_menu_shell,
|
||
GtkWidget *parent_menu_item,
|
||
GtkMenuPositionFunc func,
|
||
gpointer data,
|
||
guint button,
|
||
guint32 activate_time)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
gtk_menu_popup_for_device (menu,
|
||
NULL,
|
||
parent_menu_shell,
|
||
parent_menu_item,
|
||
func, data, NULL,
|
||
button, activate_time);
|
||
}
|
||
|
||
static GdkDevice *
|
||
get_device_for_event (const GdkEvent *event)
|
||
{
|
||
GdkDevice *device = NULL;
|
||
GdkSeat *seat = NULL;
|
||
GdkDisplay *display = NULL;
|
||
|
||
device = gdk_event_get_device (event);
|
||
|
||
if (device)
|
||
return device;
|
||
|
||
seat = gdk_event_get_seat (event);
|
||
|
||
if (!seat)
|
||
{
|
||
display = gdk_event_get_display (event);
|
||
|
||
if (!display)
|
||
{
|
||
g_warning ("no display for event, using default");
|
||
display = gdk_display_get_default ();
|
||
}
|
||
|
||
if (display)
|
||
seat = gdk_display_get_default_seat (display);
|
||
}
|
||
|
||
return seat ? gdk_seat_get_pointer (seat) : NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popup_at_rect:
|
||
* @menu: the #GtkMenu to pop up
|
||
* @rect_surface: (not nullable): the #GdkSurface @rect is relative to
|
||
* @rect: (not nullable): the #GdkRectangle to align @menu with
|
||
* @rect_anchor: the point on @rect to align with @menu's anchor point
|
||
* @menu_anchor: the point on @menu to align with @rect's anchor point
|
||
* @trigger_event: (nullable): the #GdkEvent that initiated this request or
|
||
* %NULL if it's the current event
|
||
*
|
||
* Displays @menu and makes it available for selection.
|
||
*
|
||
* See gtk_menu_popup_at_widget () and gtk_menu_popup_at_pointer (), which
|
||
* handle more common cases for popping up menus.
|
||
*
|
||
* @menu will be positioned at @rect, aligning their anchor points. @rect is
|
||
* relative to the top-left corner of @rect_surface. @rect_anchor and
|
||
* @menu_anchor determine anchor points on @rect and @menu to pin together.
|
||
* @menu can optionally be offset by #GtkMenu:rect-anchor-dx and
|
||
* #GtkMenu:rect-anchor-dy.
|
||
*
|
||
* Anchors should be specified under the assumption that the text direction is
|
||
* left-to-right; they will be flipped horizontally automatically if the text
|
||
* direction is right-to-left.
|
||
*
|
||
* Other properties that influence the behaviour of this function are
|
||
* #GtkMenu:anchor-hints and #GtkMenu:menu-type-hint. Connect to the
|
||
* #GtkMenu::popped-up signal to find out how it was actually positioned.
|
||
*/
|
||
void
|
||
gtk_menu_popup_at_rect (GtkMenu *menu,
|
||
GdkSurface *rect_surface,
|
||
const GdkRectangle *rect,
|
||
GdkGravity rect_anchor,
|
||
GdkGravity menu_anchor,
|
||
const GdkEvent *trigger_event)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
GdkEvent *current_event = NULL;
|
||
GdkDevice *device = NULL;
|
||
guint button = 0;
|
||
guint32 activate_time = GDK_CURRENT_TIME;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (GDK_IS_SURFACE (rect_surface));
|
||
g_return_if_fail (rect);
|
||
|
||
priv = menu->priv;
|
||
priv->rect_surface = rect_surface;
|
||
priv->rect = *rect;
|
||
priv->widget = NULL;
|
||
priv->rect_anchor = rect_anchor;
|
||
priv->menu_anchor = menu_anchor;
|
||
|
||
if (!trigger_event)
|
||
{
|
||
current_event = gtk_get_current_event ();
|
||
trigger_event = current_event;
|
||
}
|
||
|
||
if (trigger_event)
|
||
{
|
||
device = get_device_for_event (trigger_event);
|
||
gdk_event_get_button (trigger_event, &button);
|
||
activate_time = gdk_event_get_time (trigger_event);
|
||
}
|
||
else
|
||
g_warning ("no trigger event for menu popup");
|
||
|
||
gtk_menu_popup_internal (menu,
|
||
device,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
button,
|
||
activate_time);
|
||
|
||
g_clear_object (¤t_event);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popup_at_widget:
|
||
* @menu: the #GtkMenu to pop up
|
||
* @widget: (not nullable): the #GtkWidget to align @menu with
|
||
* @widget_anchor: the point on @widget to align with @menu's anchor point
|
||
* @menu_anchor: the point on @menu to align with @widget's anchor point
|
||
* @trigger_event: (nullable): the #GdkEvent that initiated this request or
|
||
* %NULL if it's the current event
|
||
*
|
||
* Displays @menu and makes it available for selection.
|
||
*
|
||
* See gtk_menu_popup_at_pointer () to pop up a menu at the master pointer.
|
||
* gtk_menu_popup_at_rect () also allows you to position a menu at an arbitrary
|
||
* rectangle.
|
||
*
|
||
* 
|
||
*
|
||
* @menu will be positioned at @widget, aligning their anchor points.
|
||
* @widget_anchor and @menu_anchor determine anchor points on @widget and @menu
|
||
* to pin together. @menu can optionally be offset by #GtkMenu:rect-anchor-dx
|
||
* and #GtkMenu:rect-anchor-dy.
|
||
*
|
||
* Anchors should be specified under the assumption that the text direction is
|
||
* left-to-right; they will be flipped horizontally automatically if the text
|
||
* direction is right-to-left.
|
||
*
|
||
* Other properties that influence the behaviour of this function are
|
||
* #GtkMenu:anchor-hints and #GtkMenu:menu-type-hint. Connect to the
|
||
* #GtkMenu::popped-up signal to find out how it was actually positioned.
|
||
*/
|
||
void
|
||
gtk_menu_popup_at_widget (GtkMenu *menu,
|
||
GtkWidget *widget,
|
||
GdkGravity widget_anchor,
|
||
GdkGravity menu_anchor,
|
||
const GdkEvent *trigger_event)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
GdkEvent *current_event = NULL;
|
||
GdkDevice *device = NULL;
|
||
guint button = 0;
|
||
guint32 activate_time = GDK_CURRENT_TIME;
|
||
GtkWidget *parent_menu_shell = NULL;
|
||
GtkWidget *parent_menu_item = NULL;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (GTK_IS_WIDGET (widget));
|
||
|
||
priv = menu->priv;
|
||
priv->rect_surface = NULL;
|
||
priv->widget = widget;
|
||
priv->rect_anchor = widget_anchor;
|
||
priv->menu_anchor = menu_anchor;
|
||
|
||
if (!trigger_event)
|
||
{
|
||
current_event = gtk_get_current_event ();
|
||
trigger_event = current_event;
|
||
}
|
||
|
||
if (trigger_event)
|
||
{
|
||
device = get_device_for_event (trigger_event);
|
||
gdk_event_get_button (trigger_event, &button);
|
||
activate_time = gdk_event_get_time (trigger_event);
|
||
}
|
||
else
|
||
g_warning ("no trigger event for menu popup");
|
||
|
||
if (GTK_IS_MENU_ITEM (priv->widget))
|
||
{
|
||
parent_menu_item = priv->widget;
|
||
|
||
if (GTK_IS_MENU_SHELL (gtk_widget_get_parent (parent_menu_item)))
|
||
parent_menu_shell = gtk_widget_get_parent (parent_menu_item);
|
||
}
|
||
|
||
gtk_menu_popup_internal (menu,
|
||
device,
|
||
parent_menu_shell,
|
||
parent_menu_item,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
button,
|
||
activate_time);
|
||
|
||
g_clear_object (¤t_event);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popup_at_pointer:
|
||
* @menu: the #GtkMenu to pop up
|
||
* @trigger_event: (nullable): the #GdkEvent that initiated this request or
|
||
* %NULL if it's the current event
|
||
*
|
||
* Displays @menu and makes it available for selection.
|
||
*
|
||
* See gtk_menu_popup_at_widget () to pop up a menu at a widget.
|
||
* gtk_menu_popup_at_rect () also allows you to position a menu at an arbitrary
|
||
* rectangle.
|
||
*
|
||
* @menu will be positioned at the pointer associated with @trigger_event.
|
||
*
|
||
* Properties that influence the behaviour of this function are
|
||
* #GtkMenu:anchor-hints, #GtkMenu:rect-anchor-dx, #GtkMenu:rect-anchor-dy, and
|
||
* #GtkMenu:menu-type-hint. Connect to the #GtkMenu::popped-up signal to find
|
||
* out how it was actually positioned.
|
||
*/
|
||
void
|
||
gtk_menu_popup_at_pointer (GtkMenu *menu,
|
||
const GdkEvent *trigger_event)
|
||
{
|
||
GdkEvent *current_event = NULL;
|
||
GdkSurface *rect_surface = NULL;
|
||
GdkDevice *device = NULL;
|
||
GdkRectangle rect = { 0, 0, 1, 1 };
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (!trigger_event)
|
||
{
|
||
current_event = gtk_get_current_event ();
|
||
trigger_event = current_event;
|
||
}
|
||
|
||
if (trigger_event)
|
||
{
|
||
rect_surface = gdk_event_get_surface (trigger_event);
|
||
|
||
if (rect_surface)
|
||
{
|
||
device = get_device_for_event (trigger_event);
|
||
|
||
if (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
|
||
device = gdk_device_get_associated_device (device);
|
||
|
||
if (device)
|
||
gdk_surface_get_device_position (rect_surface, device, &rect.x, &rect.y, NULL);
|
||
}
|
||
}
|
||
else
|
||
g_warning ("no trigger event for menu popup");
|
||
|
||
gtk_menu_popup_at_rect (menu,
|
||
rect_surface,
|
||
&rect,
|
||
GDK_GRAVITY_SOUTH_EAST,
|
||
GDK_GRAVITY_NORTH_WEST,
|
||
trigger_event);
|
||
|
||
g_clear_object (¤t_event);
|
||
}
|
||
|
||
static void
|
||
get_arrows_border (GtkMenu *menu,
|
||
GtkBorder *border)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
gint top_arrow_height, bottom_arrow_height;
|
||
|
||
gtk_widget_measure (priv->top_arrow_widget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&top_arrow_height, NULL,
|
||
NULL, NULL);
|
||
gtk_widget_measure (priv->bottom_arrow_widget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&bottom_arrow_height, NULL,
|
||
NULL, NULL);
|
||
|
||
border->top = priv->upper_arrow_visible ? top_arrow_height : 0;
|
||
border->bottom = priv->lower_arrow_visible ? bottom_arrow_height : 0;
|
||
border->left = border->right = 0;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_update_scroll_offset:
|
||
* @menu: the #GtkMenu that popped up
|
||
* @flipped_rect: (nullable): the position of @menu after any possible flipping
|
||
* or %NULL if unknown
|
||
* @final_rect: (nullable): the final position of @menu or %NULL if unknown
|
||
* @flipped_x: %TRUE if the anchors were flipped horizontally
|
||
* @flipped_y: %TRUE if the anchors were flipped vertically
|
||
* @user_data: user data
|
||
*
|
||
* Updates the scroll offset of @menu based on the amount of sliding done while
|
||
* positioning @menu. Connect this to the #GtkMenu::popped-up signal to keep the
|
||
* contents of the menu vertically aligned with their ideal position, for combo
|
||
* boxes for example.
|
||
*/
|
||
void
|
||
gtk_menu_update_scroll_offset (GtkMenu *menu,
|
||
const GdkRectangle *flipped_rect,
|
||
const GdkRectangle *final_rect,
|
||
gboolean flipped_x,
|
||
gboolean flipped_y,
|
||
gpointer user_data)
|
||
{
|
||
GtkBorder arrows_border;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (!flipped_rect || !final_rect)
|
||
return;
|
||
|
||
get_arrows_border (menu, &arrows_border);
|
||
menu->priv->scroll_offset = arrows_border.top + (final_rect->y - flipped_rect->y);
|
||
gtk_menu_scroll_to (menu, menu->priv->scroll_offset);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_popdown:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Removes the menu from the screen.
|
||
*/
|
||
void
|
||
gtk_menu_popdown (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
GtkMenuShell *menu_shell;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
menu_shell = GTK_MENU_SHELL (menu);
|
||
priv = menu->priv;
|
||
|
||
menu_shell->priv->parent_menu_shell = NULL;
|
||
menu_shell->priv->active = FALSE;
|
||
menu_shell->priv->ignore_enter = FALSE;
|
||
|
||
priv->have_position = FALSE;
|
||
|
||
gtk_menu_stop_scrolling (menu);
|
||
gtk_menu_stop_navigating_submenu (menu);
|
||
|
||
if (menu_shell->priv->active_menu_item)
|
||
{
|
||
if (priv->old_active_menu_item)
|
||
g_object_unref (priv->old_active_menu_item);
|
||
priv->old_active_menu_item = menu_shell->priv->active_menu_item;
|
||
g_object_ref (priv->old_active_menu_item);
|
||
}
|
||
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
|
||
/* The X Grab, if present, will automatically be removed
|
||
* when we hide the window
|
||
*/
|
||
if (priv->toplevel)
|
||
{
|
||
gtk_widget_hide (priv->toplevel);
|
||
gtk_window_set_transient_for (GTK_WINDOW (priv->toplevel), NULL);
|
||
}
|
||
|
||
gtk_widget_hide (GTK_WIDGET (menu));
|
||
|
||
menu_shell->priv->have_xgrab = FALSE;
|
||
|
||
gtk_grab_remove (GTK_WIDGET (menu));
|
||
|
||
_gtk_menu_shell_set_grab_device (menu_shell, NULL);
|
||
|
||
menu_grab_transfer_surface_destroy (menu);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_active:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Returns the selected menu item from the menu. This is used by the
|
||
* #GtkComboBox.
|
||
*
|
||
* Returns: (transfer none): the #GtkMenuItem that was last selected
|
||
* in the menu. If a selection has not yet been made, the
|
||
* first menu item is selected.
|
||
*/
|
||
GtkWidget*
|
||
gtk_menu_get_active (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *child;
|
||
GList *children;
|
||
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
|
||
|
||
if (!priv->old_active_menu_item)
|
||
{
|
||
child = NULL;
|
||
children = GTK_MENU_SHELL (menu)->priv->children;
|
||
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
if (gtk_bin_get_child (GTK_BIN (child)))
|
||
break;
|
||
child = NULL;
|
||
}
|
||
|
||
priv->old_active_menu_item = child;
|
||
if (priv->old_active_menu_item)
|
||
g_object_ref (priv->old_active_menu_item);
|
||
}
|
||
|
||
return priv->old_active_menu_item;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_active:
|
||
* @menu: a #GtkMenu
|
||
* @index: the index of the menu item to select. Index values are
|
||
* from 0 to n-1
|
||
*
|
||
* Selects the specified menu item within the menu. This is used by
|
||
* the #GtkComboBox and should not be used by anyone else.
|
||
*/
|
||
void
|
||
gtk_menu_set_active (GtkMenu *menu,
|
||
guint index)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *child;
|
||
GList *tmp_list;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->priv->children, index);
|
||
if (tmp_list)
|
||
{
|
||
child = tmp_list->data;
|
||
if (gtk_bin_get_child (GTK_BIN (child)))
|
||
{
|
||
if (priv->old_active_menu_item)
|
||
g_object_unref (priv->old_active_menu_item);
|
||
priv->old_active_menu_item = child;
|
||
g_object_ref (priv->old_active_menu_item);
|
||
}
|
||
}
|
||
g_object_notify (G_OBJECT (menu), "active");
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_accel_group:
|
||
* @menu: a #GtkMenu
|
||
* @accel_group: (allow-none): the #GtkAccelGroup to be associated
|
||
* with the menu.
|
||
*
|
||
* Set the #GtkAccelGroup which holds global accelerators for the
|
||
* menu. This accelerator group needs to also be added to all windows
|
||
* that this menu is being used in with gtk_window_add_accel_group(),
|
||
* in order for those windows to support all the accelerators
|
||
* contained in this group.
|
||
*/
|
||
void
|
||
gtk_menu_set_accel_group (GtkMenu *menu,
|
||
GtkAccelGroup *accel_group)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (priv->accel_group != accel_group)
|
||
{
|
||
if (priv->accel_group)
|
||
g_object_unref (priv->accel_group);
|
||
priv->accel_group = accel_group;
|
||
if (priv->accel_group)
|
||
g_object_ref (priv->accel_group);
|
||
_gtk_menu_refresh_accel_paths (menu, TRUE);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_accel_group:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Gets the #GtkAccelGroup which holds global accelerators for the
|
||
* menu. See gtk_menu_set_accel_group().
|
||
*
|
||
* Returns: (transfer none): the #GtkAccelGroup associated with the menu
|
||
*/
|
||
GtkAccelGroup*
|
||
gtk_menu_get_accel_group (GtkMenu *menu)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
|
||
|
||
return menu->priv->accel_group;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_real_can_activate_accel (GtkWidget *widget,
|
||
guint signal_id)
|
||
{
|
||
/* Menu items chain here to figure whether they can activate their
|
||
* accelerators. Unlike ordinary widgets, menus allow accel
|
||
* activation even if invisible since that's the usual case for
|
||
* submenus/popup-menus. however, the state of the attach widget
|
||
* affects the "activeness" of the menu.
|
||
*/
|
||
GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
|
||
|
||
if (awidget)
|
||
return gtk_widget_can_activate_accel (awidget, signal_id);
|
||
else
|
||
return gtk_widget_is_sensitive (widget);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_accel_path:
|
||
* @menu: a valid #GtkMenu
|
||
* @accel_path: (allow-none): a valid accelerator path
|
||
*
|
||
* Sets an accelerator path for this menu from which accelerator paths
|
||
* for its immediate children, its menu items, can be constructed.
|
||
* The main purpose of this function is to spare the programmer the
|
||
* inconvenience of having to call gtk_menu_item_set_accel_path() on
|
||
* each menu item that should support runtime user changable accelerators.
|
||
* Instead, by just calling gtk_menu_set_accel_path() on their parent,
|
||
* each menu item of this menu, that contains a label describing its
|
||
* purpose, automatically gets an accel path assigned.
|
||
*
|
||
* For example, a menu containing menu items “New” and “Exit”, will, after
|
||
* `gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");` has been
|
||
* called, assign its items the accel paths: `"<Gnumeric-Sheet>/File/New"`
|
||
* and `"<Gnumeric-Sheet>/File/Exit"`.
|
||
*
|
||
* Assigning accel paths to menu items then enables the user to change
|
||
* their accelerators at runtime. More details about accelerator paths
|
||
* and their default setups can be found at gtk_accel_map_add_entry().
|
||
*
|
||
* Note that @accel_path string will be stored in a #GQuark. Therefore,
|
||
* if you pass a static string, you can save some memory by interning
|
||
* it first with g_intern_static_string().
|
||
*/
|
||
void
|
||
gtk_menu_set_accel_path (GtkMenu *menu,
|
||
const gchar *accel_path)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (accel_path)
|
||
g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
|
||
|
||
/* FIXME: accel_path should be defined as const gchar* */
|
||
priv->accel_path = (gchar*)g_intern_string (accel_path);
|
||
if (priv->accel_path)
|
||
_gtk_menu_refresh_accel_paths (menu, FALSE);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_accel_path:
|
||
* @menu: a valid #GtkMenu
|
||
*
|
||
* Retrieves the accelerator path set on the menu.
|
||
*
|
||
* Returns: the accelerator path set on the menu.
|
||
*/
|
||
const gchar*
|
||
gtk_menu_get_accel_path (GtkMenu *menu)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
|
||
|
||
return menu->priv->accel_path;
|
||
}
|
||
|
||
typedef struct {
|
||
GtkMenu *menu;
|
||
gboolean group_changed;
|
||
} AccelPropagation;
|
||
|
||
static void
|
||
refresh_accel_paths_foreach (GtkWidget *widget,
|
||
gpointer data)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
AccelPropagation *prop = data;
|
||
|
||
if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
|
||
{
|
||
priv = prop->menu->priv;
|
||
_gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
|
||
priv->accel_path,
|
||
priv->accel_group,
|
||
prop->group_changed);
|
||
}
|
||
}
|
||
|
||
static void
|
||
_gtk_menu_refresh_accel_paths (GtkMenu *menu,
|
||
gboolean group_changed)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (priv->accel_path && priv->accel_group)
|
||
{
|
||
AccelPropagation prop;
|
||
|
||
prop.menu = menu;
|
||
prop.group_changed = group_changed;
|
||
gtk_container_foreach (GTK_CONTAINER (menu),
|
||
refresh_accel_paths_foreach,
|
||
&prop);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_reposition:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Repositions the menu according to its position function.
|
||
*/
|
||
void
|
||
gtk_menu_reposition (GtkMenu *menu)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (gtk_widget_is_drawable (GTK_WIDGET (menu)))
|
||
gtk_menu_position (menu, FALSE);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_reorder_child:
|
||
* @menu: a #GtkMenu
|
||
* @child: the #GtkMenuItem to move
|
||
* @position: the new position to place @child.
|
||
* Positions are numbered from 0 to n - 1
|
||
*
|
||
* Moves @child to a new @position in the list of @menu
|
||
* children.
|
||
*/
|
||
void
|
||
gtk_menu_reorder_child (GtkMenu *menu,
|
||
GtkWidget *child,
|
||
gint position)
|
||
{
|
||
GtkMenuShell *menu_shell;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (GTK_IS_MENU_ITEM (child));
|
||
|
||
menu_shell = GTK_MENU_SHELL (menu);
|
||
|
||
if (g_list_find (menu_shell->priv->children, child))
|
||
{
|
||
menu_shell->priv->children = g_list_remove (menu_shell->priv->children, child);
|
||
menu_shell->priv->children = g_list_insert (menu_shell->priv->children, child, position);
|
||
|
||
menu_queue_resize (menu);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_realize (GtkWidget *widget)
|
||
{
|
||
GTK_WIDGET_CLASS (gtk_menu_parent_class)->realize (widget);
|
||
|
||
if (GTK_MENU_SHELL (widget)->priv->active_menu_item)
|
||
gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
|
||
GTK_MENU_SHELL (widget)->priv->active_menu_item);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_focus (GtkWidget *widget,
|
||
GtkDirectionType direction)
|
||
{
|
||
/* A menu or its menu items cannot have focus */
|
||
return FALSE;
|
||
}
|
||
|
||
/* See notes in gtk_menu_popup() for information
|
||
* about the “grab transfer window”
|
||
*/
|
||
static GdkSurface *
|
||
menu_grab_transfer_surface_get (GtkMenu *menu)
|
||
{
|
||
GdkSurface *surface = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-surface");
|
||
if (!surface)
|
||
{
|
||
surface = gdk_surface_new_temp (gtk_widget_get_display (GTK_WIDGET (menu)));
|
||
gtk_widget_register_surface (GTK_WIDGET (menu), surface);
|
||
|
||
gdk_surface_show (surface);
|
||
|
||
g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-surface"), surface);
|
||
}
|
||
|
||
return surface;
|
||
}
|
||
|
||
static void
|
||
menu_grab_transfer_surface_destroy (GtkMenu *menu)
|
||
{
|
||
GdkSurface *surface = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-surface");
|
||
if (surface)
|
||
{
|
||
GdkSurface *widget_surface;
|
||
|
||
gtk_widget_unregister_surface (GTK_WIDGET (menu), surface);
|
||
gdk_surface_destroy (surface);
|
||
g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-surface"), NULL);
|
||
|
||
widget_surface = gtk_widget_get_surface (GTK_WIDGET (menu));
|
||
g_object_set_data (G_OBJECT (widget_surface), I_("gdk-attached-grab-surface"), surface);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_unrealize (GtkWidget *widget)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (widget);
|
||
|
||
menu_grab_transfer_surface_destroy (menu);
|
||
|
||
GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize (widget);
|
||
}
|
||
|
||
static gint
|
||
calculate_line_heights (GtkMenu *menu,
|
||
gint for_width,
|
||
guint **ret_min_heights,
|
||
guint **ret_nat_heights)
|
||
{
|
||
GtkMenuPrivate *priv;
|
||
GtkMenuShell *menu_shell;
|
||
GtkWidget *child, *widget;
|
||
GList *children;
|
||
guint n_columns;
|
||
gint n_heights;
|
||
guint *min_heights;
|
||
guint *nat_heights;
|
||
gint avail_width;
|
||
|
||
priv = menu->priv;
|
||
widget = GTK_WIDGET (menu);
|
||
menu_shell = GTK_MENU_SHELL (widget);
|
||
|
||
min_heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
|
||
nat_heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
|
||
n_heights = gtk_menu_get_n_rows (menu);
|
||
n_columns = gtk_menu_get_n_columns (menu);
|
||
avail_width = for_width - (2 * priv->toggle_size + priv->accel_size) * n_columns;
|
||
|
||
for (children = menu_shell->priv->children; children; children = children->next)
|
||
{
|
||
gint part;
|
||
gint toggle_size;
|
||
gint l, r, t, b;
|
||
gint child_min, child_nat;
|
||
|
||
child = children->data;
|
||
|
||
if (!gtk_widget_get_visible (child))
|
||
continue;
|
||
|
||
get_effective_child_attach (child, &l, &r, &t, &b);
|
||
|
||
part = avail_width / (r - l);
|
||
|
||
gtk_widget_measure (child, GTK_ORIENTATION_VERTICAL,
|
||
part,
|
||
&child_min, &child_nat,
|
||
NULL, NULL);
|
||
|
||
gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
|
||
|
||
part = MAX (child_min, toggle_size) / (b - t);
|
||
min_heights[t] = MAX (min_heights[t], part);
|
||
|
||
part = MAX (child_nat, toggle_size) / (b - t);
|
||
nat_heights[t] = MAX (nat_heights[t], part);
|
||
}
|
||
|
||
if (ret_min_heights)
|
||
*ret_min_heights = min_heights;
|
||
else
|
||
g_free (min_heights);
|
||
|
||
if (ret_nat_heights)
|
||
*ret_nat_heights = nat_heights;
|
||
else
|
||
g_free (nat_heights);
|
||
|
||
return n_heights;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_size_allocate (GtkWidget *widget,
|
||
const GtkAllocation *allocation,
|
||
int baseline)
|
||
{
|
||
GtkMenu *menu;
|
||
GtkMenuPrivate *priv;
|
||
GtkMenuShell *menu_shell;
|
||
GtkWidget *child;
|
||
GtkAllocation arrow_allocation, child_allocation;
|
||
GList *children;
|
||
gint x, y, i;
|
||
gint width, height;
|
||
GtkBorder arrow_border;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (widget));
|
||
g_return_if_fail (allocation != NULL);
|
||
|
||
menu = GTK_MENU (widget);
|
||
menu_shell = GTK_MENU_SHELL (widget);
|
||
priv = menu->priv;
|
||
|
||
g_free (priv->heights);
|
||
priv->heights_length = calculate_line_heights (menu,
|
||
allocation->width,
|
||
&priv->heights,
|
||
NULL);
|
||
|
||
/* refresh our cached height request */
|
||
priv->requested_height = 0;
|
||
for (i = 0; i < priv->heights_length; i++)
|
||
priv->requested_height += priv->heights[i];
|
||
|
||
x = allocation->x;
|
||
y = allocation->y;
|
||
width = allocation->width;
|
||
height = allocation->height;
|
||
|
||
if (menu_shell->priv->active)
|
||
gtk_menu_scroll_to (menu, priv->scroll_offset);
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
|
||
arrow_allocation.x = x;
|
||
arrow_allocation.y = y;
|
||
arrow_allocation.width = width;
|
||
arrow_allocation.height = arrow_border.top;
|
||
|
||
if (priv->upper_arrow_visible)
|
||
gtk_widget_size_allocate (priv->top_arrow_widget, &arrow_allocation, -1);
|
||
|
||
arrow_allocation.y = height - y - arrow_border.bottom;
|
||
arrow_allocation.height = arrow_border.bottom;
|
||
|
||
if (priv->lower_arrow_visible)
|
||
gtk_widget_size_allocate (priv->bottom_arrow_widget, &arrow_allocation, -1);
|
||
|
||
width = MAX (1, width);
|
||
height = MAX (1, height);
|
||
|
||
if (menu_shell->priv->children)
|
||
{
|
||
gint base_width = width / gtk_menu_get_n_columns (menu);
|
||
|
||
children = menu_shell->priv->children;
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
if (gtk_widget_get_visible (child))
|
||
{
|
||
gint l, r, t, b;
|
||
|
||
get_effective_child_attach (child, &l, &r, &t, &b);
|
||
|
||
if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
|
||
{
|
||
guint tmp;
|
||
tmp = gtk_menu_get_n_columns (menu) - l;
|
||
l = gtk_menu_get_n_columns (menu) - r;
|
||
r = tmp;
|
||
}
|
||
|
||
child_allocation.width = (r - l) * base_width;
|
||
child_allocation.height = 0;
|
||
child_allocation.x = l * base_width;
|
||
child_allocation.y = 0;
|
||
|
||
for (i = 0; i < b; i++)
|
||
{
|
||
if (i < t)
|
||
child_allocation.y += priv->heights[i];
|
||
else
|
||
child_allocation.height += priv->heights[i];
|
||
}
|
||
|
||
gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
|
||
priv->toggle_size);
|
||
|
||
gtk_widget_size_allocate (child, &child_allocation, -1);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_snapshot (GtkWidget *widget,
|
||
GtkSnapshot *snapshot)
|
||
{
|
||
gtk_snapshot_push_clip (snapshot,
|
||
&GRAPHENE_RECT_INIT(
|
||
0, 0,
|
||
gtk_widget_get_width (widget),
|
||
gtk_widget_get_height (widget)),
|
||
"MenuClip");
|
||
|
||
GTK_WIDGET_CLASS (gtk_menu_parent_class)->snapshot (widget, snapshot);
|
||
|
||
gtk_snapshot_pop (snapshot);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_show (GtkWidget *widget)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (widget);
|
||
|
||
_gtk_menu_refresh_accel_paths (menu, FALSE);
|
||
|
||
GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
|
||
}
|
||
|
||
static void gtk_menu_measure (GtkWidget *widget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (widget);
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
|
||
GtkMenuPrivate *priv = gtk_menu_get_instance_private (menu);
|
||
GtkWidget *child;
|
||
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
GList *children;
|
||
guint max_toggle_size;
|
||
guint max_accel_width;
|
||
gint child_min, child_nat;
|
||
gint min_width, nat_width;
|
||
|
||
min_width = nat_width = 0;
|
||
|
||
max_toggle_size = 0;
|
||
max_accel_width = 0;
|
||
|
||
children = menu_shell->priv->children;
|
||
while (children)
|
||
{
|
||
gint part;
|
||
gint toggle_size;
|
||
gint l, r, t, b;
|
||
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
if (! gtk_widget_get_visible (child))
|
||
continue;
|
||
|
||
get_effective_child_attach (child, &l, &r, &t, &b);
|
||
|
||
/* It's important to size_request the child
|
||
* before doing the toggle size request, in
|
||
* case the toggle size request depends on the size
|
||
* request of a child of the child (e.g. for ImageMenuItem)
|
||
*/
|
||
gtk_widget_measure (child, GTK_ORIENTATION_HORIZONTAL,
|
||
-1, &child_min, &child_nat, NULL, NULL);
|
||
|
||
gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
|
||
max_toggle_size = MAX (max_toggle_size, toggle_size);
|
||
max_accel_width = MAX (max_accel_width,
|
||
GTK_MENU_ITEM (child)->priv->accelerator_width);
|
||
|
||
part = child_min / (r - l);
|
||
min_width = MAX (min_width, part);
|
||
|
||
part = child_nat / (r - l);
|
||
nat_width = MAX (nat_width, part);
|
||
}
|
||
|
||
/* If the menu doesn't include any images or check items
|
||
* reserve the space so that all menus are consistent.
|
||
* We only do this for 'ordinary' menus, not for combobox
|
||
* menus or multi-column menus
|
||
*/
|
||
if (max_toggle_size == 0 &&
|
||
gtk_menu_get_n_columns (menu) == 1 &&
|
||
!priv->no_toggle_size)
|
||
{
|
||
GtkWidget *menu_item;
|
||
GtkWidget *indicator_widget;
|
||
gint indicator_width;
|
||
|
||
/* Create a GtkCheckMenuItem, to query indicator size */
|
||
menu_item = gtk_check_menu_item_new ();
|
||
indicator_widget = _gtk_check_menu_item_get_indicator_widget (GTK_CHECK_MENU_ITEM (menu_item));
|
||
|
||
gtk_widget_measure (indicator_widget,
|
||
GTK_ORIENTATION_HORIZONTAL,
|
||
-1,
|
||
&indicator_width, NULL,
|
||
NULL, NULL);
|
||
max_toggle_size = indicator_width;
|
||
|
||
gtk_widget_destroy (menu_item);
|
||
g_object_ref_sink (menu_item);
|
||
g_object_unref (menu_item);
|
||
}
|
||
|
||
min_width += 2 * max_toggle_size + max_accel_width;
|
||
min_width *= gtk_menu_get_n_columns (menu);
|
||
|
||
nat_width += 2 * max_toggle_size + max_accel_width;
|
||
nat_width *= gtk_menu_get_n_columns (menu);
|
||
|
||
priv->toggle_size = max_toggle_size;
|
||
priv->accel_size = max_accel_width;
|
||
|
||
*minimum = min_width;
|
||
*natural = nat_width;
|
||
|
||
}
|
||
else /* VERTICAL */
|
||
{
|
||
if (for_size < 0)
|
||
{
|
||
gint min_width, nat_width;
|
||
|
||
/* Menus are height-for-width only, just return the height
|
||
* for the minimum width
|
||
*/
|
||
GTK_WIDGET_GET_CLASS (widget)->measure (widget, GTK_ORIENTATION_HORIZONTAL, -1,
|
||
&min_width, &nat_width, NULL, NULL);
|
||
GTK_WIDGET_GET_CLASS (widget)->measure (widget, GTK_ORIENTATION_VERTICAL, min_width,
|
||
minimum, natural,
|
||
minimum_baseline, natural_baseline);
|
||
}
|
||
else
|
||
{
|
||
GtkBorder arrow_border;
|
||
guint *min_heights, *nat_heights;
|
||
gint n_heights, i;
|
||
gint min_height, single_height, nat_height;
|
||
|
||
min_height = nat_height = 0;
|
||
single_height = 0;
|
||
|
||
n_heights =
|
||
calculate_line_heights (menu, for_size, &min_heights, &nat_heights);
|
||
|
||
for (i = 0; i < n_heights; i++)
|
||
{
|
||
min_height += min_heights[i];
|
||
single_height = MAX (single_height, min_heights[i]);
|
||
nat_height += nat_heights[i];
|
||
}
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
single_height += arrow_border.top + arrow_border.bottom;
|
||
min_height = MIN (min_height, single_height);
|
||
|
||
if (priv->have_position)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkMonitor *monitor;
|
||
GdkRectangle workarea;
|
||
GtkBorder border;
|
||
|
||
display = gtk_widget_get_display (priv->toplevel);
|
||
monitor = gdk_display_get_monitor (display, priv->monitor_num);
|
||
gdk_monitor_get_workarea (monitor, &workarea);
|
||
|
||
if (priv->position_y + min_height > workarea.y + workarea.height)
|
||
min_height = workarea.y + workarea.height - priv->position_y;
|
||
|
||
if (priv->position_y + nat_height > workarea.y + workarea.height)
|
||
nat_height = workarea.y + workarea.height - priv->position_y;
|
||
|
||
_gtk_window_get_shadow_width (GTK_WINDOW (priv->toplevel), &border);
|
||
|
||
if (priv->position_y + border.top < workarea.y)
|
||
{
|
||
min_height -= workarea.y - (priv->position_y + border.top);
|
||
nat_height -= workarea.y - (priv->position_y + border.top);
|
||
}
|
||
}
|
||
|
||
*minimum = min_height;
|
||
*natural = nat_height;
|
||
|
||
g_free (min_heights);
|
||
g_free (nat_heights);
|
||
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
pointer_in_menu_surface (GtkWidget *widget,
|
||
gdouble x_root,
|
||
gdouble y_root)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (widget);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkAllocation allocation;
|
||
|
||
if (gtk_widget_get_mapped (priv->toplevel))
|
||
{
|
||
GtkMenuShell *menu_shell;
|
||
gint surface_x, surface_y;
|
||
|
||
gdk_surface_get_position (gtk_widget_get_surface (priv->toplevel),
|
||
&surface_x, &surface_y);
|
||
|
||
gtk_widget_get_allocation (widget, &allocation);
|
||
if (x_root >= surface_x && x_root < surface_x + allocation.width &&
|
||
y_root >= surface_y && y_root < surface_y + allocation.height)
|
||
return TRUE;
|
||
|
||
menu_shell = GTK_MENU_SHELL (widget);
|
||
|
||
if (GTK_IS_MENU (menu_shell->priv->parent_menu_shell))
|
||
return pointer_in_menu_surface (menu_shell->priv->parent_menu_shell,
|
||
x_root, y_root);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_menu_pressed_cb (GtkGestureMultiPress *gesture,
|
||
int n_press,
|
||
double x,
|
||
double y,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenu *menu = user_data;
|
||
GdkEventSequence *sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
|
||
const GdkEvent *event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
|
||
const GdkEventButton *button_event = (GdkEventButton *)event;
|
||
GdkDevice *source_device;
|
||
GtkWidget *event_widget;
|
||
|
||
source_device = gdk_event_get_source_device (event);
|
||
event_widget = gtk_get_event_widget ((GdkEvent *)event);
|
||
/* Don't pass down to menu shell if a non-menuitem part of the menu
|
||
* was clicked. The check for the event_widget being a GtkMenuShell
|
||
* works because we have the pointer grabbed on menu_shell->window
|
||
* with owner_events=TRUE, so all events that are either outside
|
||
* the menu or on its border are delivered relative to
|
||
* menu_shell->window.
|
||
*/
|
||
if (GTK_IS_MENU_SHELL (event_widget) &&
|
||
pointer_in_menu_surface (GTK_WIDGET (menu), button_event->x_root, button_event->y_root))
|
||
{
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
|
||
return;
|
||
}
|
||
|
||
if (GTK_IS_MENU_ITEM (event_widget) &&
|
||
gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN &&
|
||
GTK_MENU_ITEM (event_widget)->priv->submenu != NULL &&
|
||
!gtk_widget_is_drawable (GTK_MENU_ITEM (event_widget)->priv->submenu))
|
||
menu->priv->ignore_button_release = TRUE;
|
||
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_released_cb (GtkGestureMultiPress *gesture,
|
||
int n_press,
|
||
double x,
|
||
double y,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenu *menu = user_data;
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GdkEventSequence *sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
|
||
const GdkEvent *event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
|
||
const GdkEventButton *button_event = (GdkEventButton *)event;
|
||
|
||
if (priv->ignore_button_release)
|
||
{
|
||
priv->ignore_button_release = FALSE;
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
|
||
return;
|
||
}
|
||
|
||
/* Don't pass down to menu shell if a non-menuitem part of the menu
|
||
* was clicked (see comment in gtk_menu_pressed_cb()).
|
||
*/
|
||
if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
|
||
pointer_in_menu_surface (GTK_WIDGET (menu), button_event->x_root, button_event->y_root))
|
||
{
|
||
/* Ugly: make sure menu_shell->button gets reset to 0 when we
|
||
* bail out early here so it is in a consistent state for the
|
||
* next button press or release in GtkMenuShell.
|
||
* See bug #449371.
|
||
*/
|
||
if (GTK_MENU_SHELL (menu)->priv->active)
|
||
GTK_MENU_SHELL (menu)->priv->button = 0;
|
||
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
check_threshold (GtkWidget *widget,
|
||
gint start_x,
|
||
gint start_y,
|
||
gint x,
|
||
gint y)
|
||
{
|
||
#define THRESHOLD 8
|
||
|
||
return
|
||
ABS (start_x - x) > THRESHOLD ||
|
||
ABS (start_y - y) > THRESHOLD;
|
||
}
|
||
|
||
static gboolean
|
||
definitely_within_item (GtkMenu *menu,
|
||
GtkWidget *widget,
|
||
gint x,
|
||
gint y)
|
||
{
|
||
int w, h;
|
||
graphene_rect_t bounds;
|
||
|
||
gtk_widget_compute_bounds (widget, GTK_WIDGET (menu), &bounds);
|
||
w = bounds.size.width;
|
||
h = bounds.size.height;
|
||
|
||
return
|
||
check_threshold (widget, 0, 0, x, y) &&
|
||
check_threshold (widget, w - 1, 0, x, y) &&
|
||
check_threshold (widget, w - 1, h - 1, x, y) &&
|
||
check_threshold (widget, 0, h - 1, x, y);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_has_navigation_triangle (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
return priv->navigation_height && priv->navigation_width;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_motion (GtkEventController *controller,
|
||
double x,
|
||
double y,
|
||
gpointer user_data)
|
||
{
|
||
GtkWidget *menu_item;
|
||
GtkMenu *menu;
|
||
GtkMenuShell *menu_shell;
|
||
GtkWidget *parent;
|
||
GdkDevice *source_device;
|
||
GdkEventMotion *event;
|
||
|
||
menu_item = GTK_WIDGET (user_data);
|
||
|
||
event = (GdkEventMotion *)gtk_get_current_event (); /* FIXME: controller event */
|
||
|
||
source_device = gdk_event_get_source_device ((GdkEvent *)event);
|
||
|
||
if (GTK_IS_MENU (menu_item) &&
|
||
gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
|
||
{
|
||
GtkMenuPrivate *priv = GTK_MENU(menu_item)->priv;
|
||
|
||
if (priv->ignore_button_release)
|
||
priv->ignore_button_release = FALSE;
|
||
|
||
gtk_menu_handle_scrolling (GTK_MENU (menu_item), event->x_root, event->y_root, TRUE, TRUE);
|
||
}
|
||
|
||
/*We received the event for one of two reasons:
|
||
*
|
||
* a) We are the active menu, and did gtk_grab_add()
|
||
* b) The widget is a child of ours, and the event was propagated
|
||
*
|
||
* Since for computation of navigation regions, we want the menu which
|
||
* is the parent of the menu item, for a), we need to find that menu,
|
||
* which may be different from 'widget'.
|
||
*/
|
||
parent = gtk_widget_get_parent (menu_item);
|
||
if (!GTK_IS_MENU_ITEM (menu_item) ||
|
||
!GTK_IS_MENU (parent))
|
||
return;
|
||
menu_shell = GTK_MENU_SHELL (parent);
|
||
menu = GTK_MENU (menu_shell);
|
||
|
||
if (definitely_within_item (menu, menu_item, event->x, event->y))
|
||
menu_shell->priv->activate_time = 0;
|
||
|
||
/* Check to see if we are within an active submenu's navigation region
|
||
*/
|
||
if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
|
||
return;
|
||
|
||
/* Make sure we pop down if we enter a non-selectable menu item, so we
|
||
* don't show a submenu when the cursor is outside the stay-up triangle.
|
||
*/
|
||
if (!_gtk_menu_item_is_selectable (menu_item))
|
||
{
|
||
/* We really want to deselect, but this gives the menushell code
|
||
* a chance to do some bookkeeping about the menuitem.
|
||
*/
|
||
gtk_menu_shell_select_item (menu_shell, menu_item);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_scroll_by (GtkMenu *menu,
|
||
gint step)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkBorder arrow_border;
|
||
GtkWidget *widget;
|
||
gint offset;
|
||
gint view_height;
|
||
|
||
widget = GTK_WIDGET (menu);
|
||
offset = priv->scroll_offset + step;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
|
||
/* Don't scroll over the top if we weren't before: */
|
||
if ((priv->scroll_offset >= 0) && (offset < 0))
|
||
offset = 0;
|
||
|
||
view_height = gdk_surface_get_height (gtk_widget_get_surface (widget));
|
||
|
||
if (priv->scroll_offset == 0 &&
|
||
view_height >= priv->requested_height)
|
||
return;
|
||
|
||
/* Don't scroll past the bottom if we weren't before: */
|
||
if (priv->scroll_offset > 0)
|
||
view_height -= arrow_border.top;
|
||
|
||
/* Since arrows are shown, reduce view height even more */
|
||
view_height -= arrow_border.bottom;
|
||
|
||
if ((priv->scroll_offset + view_height <= priv->requested_height) &&
|
||
(offset + view_height > priv->requested_height))
|
||
offset = priv->requested_height - view_height;
|
||
|
||
if (offset != priv->scroll_offset)
|
||
gtk_menu_scroll_to (menu, offset);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_scroll_timeout (gpointer data)
|
||
{
|
||
GtkMenu *menu;
|
||
|
||
menu = GTK_MENU (data);
|
||
gtk_menu_scroll_by (menu, menu->priv->scroll_step);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_scroll_controller_scroll (GtkEventControllerScroll *scroll,
|
||
gdouble dx,
|
||
gdouble dy,
|
||
GtkMenu *menu)
|
||
{
|
||
gtk_menu_scroll_by (menu, dy * MENU_SCROLL_STEP2);
|
||
}
|
||
|
||
static void
|
||
get_arrows_sensitive_area (GtkMenu *menu,
|
||
GdkRectangle *upper,
|
||
GdkRectangle *lower)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *widget = GTK_WIDGET (menu);
|
||
GdkSurface *surface;
|
||
gint width, height;
|
||
gint win_x, win_y;
|
||
gint top_arrow_height, bottom_arrow_height;
|
||
|
||
gtk_widget_measure (priv->top_arrow_widget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&top_arrow_height, NULL,
|
||
NULL, NULL);
|
||
gtk_widget_measure (priv->bottom_arrow_widget,
|
||
GTK_ORIENTATION_VERTICAL,
|
||
-1,
|
||
&bottom_arrow_height, NULL,
|
||
NULL, NULL);
|
||
|
||
surface = gtk_widget_get_surface (widget);
|
||
width = gdk_surface_get_width (surface);
|
||
height = gdk_surface_get_height (surface);
|
||
|
||
gdk_surface_get_position (surface, &win_x, &win_y);
|
||
|
||
if (upper)
|
||
{
|
||
upper->x = win_x;
|
||
upper->y = win_y;
|
||
upper->width = width;
|
||
upper->height = top_arrow_height;
|
||
}
|
||
|
||
if (lower)
|
||
{
|
||
lower->x = win_x;
|
||
lower->y = win_y + height - bottom_arrow_height;
|
||
lower->width = width;
|
||
lower->height = bottom_arrow_height;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_handle_scrolling (GtkMenu *menu,
|
||
gint x,
|
||
gint y,
|
||
gboolean enter,
|
||
gboolean motion)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkMenuShell *menu_shell;
|
||
GdkRectangle rect;
|
||
gboolean in_arrow;
|
||
gboolean scroll_fast = FALSE;
|
||
gint top_x, top_y;
|
||
|
||
menu_shell = GTK_MENU_SHELL (menu);
|
||
|
||
gdk_surface_get_position (gtk_widget_get_surface (priv->toplevel),
|
||
&top_x, &top_y);
|
||
x -= top_x;
|
||
y -= top_y;
|
||
|
||
/* upper arrow handling */
|
||
|
||
get_arrows_sensitive_area (menu, &rect, NULL);
|
||
|
||
in_arrow = FALSE;
|
||
if (priv->upper_arrow_visible &&
|
||
(x >= rect.x) && (x < rect.x + rect.width) &&
|
||
(y >= rect.y) && (y < rect.y + rect.height))
|
||
{
|
||
in_arrow = TRUE;
|
||
}
|
||
|
||
if ((priv->upper_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
|
||
{
|
||
gboolean arrow_pressed = FALSE;
|
||
|
||
if (priv->upper_arrow_visible)
|
||
{
|
||
scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
|
||
|
||
if (enter && in_arrow &&
|
||
(!priv->upper_arrow_prelight ||
|
||
priv->scroll_fast != scroll_fast))
|
||
{
|
||
priv->upper_arrow_prelight = TRUE;
|
||
priv->scroll_fast = scroll_fast;
|
||
|
||
/* Deselect the active item so that
|
||
* any submenus are popped down
|
||
*/
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
|
||
gtk_menu_remove_scroll_timeout (menu);
|
||
priv->scroll_step = scroll_fast
|
||
? -MENU_SCROLL_STEP2
|
||
: -MENU_SCROLL_STEP1;
|
||
|
||
priv->scroll_timeout = g_timeout_add (scroll_fast
|
||
? MENU_SCROLL_TIMEOUT2
|
||
: MENU_SCROLL_TIMEOUT1,
|
||
gtk_menu_scroll_timeout,
|
||
menu);
|
||
g_source_set_name_by_id (priv->scroll_timeout, "[gtk+] gtk_menu_scroll_timeout");
|
||
}
|
||
else if (!enter && !in_arrow && priv->upper_arrow_prelight)
|
||
{
|
||
gtk_menu_stop_scrolling (menu);
|
||
}
|
||
}
|
||
|
||
/* check if the button isn't insensitive before
|
||
* changing it to something else.
|
||
*/
|
||
if ((priv->upper_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
|
||
{
|
||
GtkStateFlags arrow_state = 0;
|
||
|
||
if (arrow_pressed)
|
||
arrow_state |= GTK_STATE_FLAG_ACTIVE;
|
||
|
||
if (priv->upper_arrow_prelight)
|
||
arrow_state |= GTK_STATE_FLAG_PRELIGHT;
|
||
|
||
if (arrow_state != priv->upper_arrow_state)
|
||
{
|
||
priv->upper_arrow_state = arrow_state;
|
||
gtk_widget_set_state_flags (priv->top_arrow_widget, arrow_state, TRUE);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* lower arrow handling */
|
||
|
||
get_arrows_sensitive_area (menu, NULL, &rect);
|
||
|
||
in_arrow = FALSE;
|
||
if (priv->lower_arrow_visible &&
|
||
(x >= rect.x) && (x < rect.x + rect.width) &&
|
||
(y >= rect.y) && (y < rect.y + rect.height))
|
||
{
|
||
in_arrow = TRUE;
|
||
}
|
||
|
||
if ((priv->lower_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
|
||
{
|
||
gboolean arrow_pressed = FALSE;
|
||
|
||
if (priv->lower_arrow_visible)
|
||
{
|
||
scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
|
||
|
||
if (enter && in_arrow &&
|
||
(!priv->lower_arrow_prelight ||
|
||
priv->scroll_fast != scroll_fast))
|
||
{
|
||
priv->lower_arrow_prelight = TRUE;
|
||
priv->scroll_fast = scroll_fast;
|
||
|
||
/* Deselect the active item so that
|
||
* any submenus are popped down
|
||
*/
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
|
||
gtk_menu_remove_scroll_timeout (menu);
|
||
priv->scroll_step = scroll_fast
|
||
? MENU_SCROLL_STEP2
|
||
: MENU_SCROLL_STEP1;
|
||
|
||
priv->scroll_timeout = g_timeout_add (scroll_fast
|
||
? MENU_SCROLL_TIMEOUT2
|
||
: MENU_SCROLL_TIMEOUT1,
|
||
gtk_menu_scroll_timeout,
|
||
menu);
|
||
g_source_set_name_by_id (priv->scroll_timeout, "[gtk+] gtk_menu_scroll_timeout");
|
||
}
|
||
else if (!enter && !in_arrow && priv->lower_arrow_prelight)
|
||
{
|
||
gtk_menu_stop_scrolling (menu);
|
||
}
|
||
}
|
||
|
||
/* check if the button isn't insensitive before
|
||
* changing it to something else.
|
||
*/
|
||
if ((priv->lower_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
|
||
{
|
||
GtkStateFlags arrow_state = 0;
|
||
|
||
if (arrow_pressed)
|
||
arrow_state |= GTK_STATE_FLAG_ACTIVE;
|
||
|
||
if (priv->lower_arrow_prelight)
|
||
arrow_state |= GTK_STATE_FLAG_PRELIGHT;
|
||
|
||
if (arrow_state != priv->lower_arrow_state)
|
||
{
|
||
priv->lower_arrow_state = arrow_state;
|
||
gtk_widget_set_state_flags (priv->bottom_arrow_widget, arrow_state, TRUE);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_enter (GtkEventController *controller,
|
||
double x,
|
||
double y,
|
||
gpointer user_data)
|
||
{
|
||
GdkDevice *source_device;
|
||
GdkEventCrossing *event;
|
||
|
||
event = (GdkEventCrossing *)gtk_get_current_event ();
|
||
|
||
if (event->mode == GDK_CROSSING_GTK_GRAB ||
|
||
event->mode == GDK_CROSSING_GTK_UNGRAB ||
|
||
event->mode == GDK_CROSSING_STATE_CHANGED)
|
||
return;
|
||
|
||
source_device = gdk_event_get_source_device ((GdkEvent *) event);
|
||
|
||
if (gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (user_data);
|
||
|
||
if (!menu_shell->priv->ignore_enter)
|
||
gtk_menu_handle_scrolling (GTK_MENU (user_data),
|
||
event->x_root, event->y_root, TRUE, TRUE);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_leave (GtkEventController *controller,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenu *menu;
|
||
GdkDevice *source_device;
|
||
GdkEventCrossing *event;
|
||
|
||
event = (GdkEventCrossing *)gtk_get_current_event ();
|
||
|
||
if (event->mode == GDK_CROSSING_GTK_GRAB ||
|
||
event->mode == GDK_CROSSING_GTK_UNGRAB ||
|
||
event->mode == GDK_CROSSING_STATE_CHANGED)
|
||
return;
|
||
|
||
menu = GTK_MENU (user_data);
|
||
|
||
if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
|
||
return;
|
||
|
||
source_device = gdk_event_get_source_device ((GdkEvent *) event);
|
||
|
||
if (gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
|
||
gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
|
||
}
|
||
|
||
static gboolean
|
||
pointer_on_menu_widget (GtkMenu *menu,
|
||
gdouble x_root,
|
||
gdouble y_root)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkAllocation allocation;
|
||
gint surface_x, surface_y;
|
||
|
||
gtk_widget_get_allocation (GTK_WIDGET (menu), &allocation);
|
||
gdk_surface_get_position (gtk_widget_get_surface (priv->toplevel),
|
||
&surface_x, &surface_y);
|
||
|
||
if (x_root >= surface_x && x_root < surface_x + allocation.width &&
|
||
y_root >= surface_y && y_root < surface_y + allocation.height)
|
||
return TRUE;
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_captured_event (GtkWidget *widget,
|
||
GdkEvent *event)
|
||
{
|
||
GdkDevice *source_device;
|
||
gboolean retval = FALSE;
|
||
GtkMenuPrivate *priv;
|
||
GtkMenu *menu;
|
||
gdouble x_root, y_root;
|
||
guint button;
|
||
GdkModifierType state;
|
||
|
||
menu = GTK_MENU (widget);
|
||
priv = menu->priv;
|
||
|
||
if (!priv->upper_arrow_visible && !priv->lower_arrow_visible && priv->drag_start_y < 0)
|
||
return retval;
|
||
|
||
source_device = gdk_event_get_source_device (event);
|
||
gdk_event_get_root_coords (event, &x_root, &y_root);
|
||
|
||
switch ((guint) gdk_event_get_event_type (event))
|
||
{
|
||
case GDK_TOUCH_BEGIN:
|
||
case GDK_BUTTON_PRESS:
|
||
if ((!gdk_event_get_button (event, &button) || button == 1) &&
|
||
gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN &&
|
||
pointer_on_menu_widget (menu, x_root, y_root))
|
||
{
|
||
priv->drag_start_y = event->button.y_root;
|
||
priv->initial_drag_offset = priv->scroll_offset;
|
||
priv->drag_scroll_started = FALSE;
|
||
}
|
||
else
|
||
priv->drag_start_y = -1;
|
||
|
||
priv->drag_already_pressed = TRUE;
|
||
break;
|
||
case GDK_TOUCH_END:
|
||
case GDK_BUTTON_RELEASE:
|
||
if (priv->drag_scroll_started)
|
||
{
|
||
priv->drag_scroll_started = FALSE;
|
||
priv->drag_start_y = -1;
|
||
priv->drag_already_pressed = FALSE;
|
||
retval = TRUE;
|
||
}
|
||
break;
|
||
case GDK_TOUCH_UPDATE:
|
||
case GDK_MOTION_NOTIFY:
|
||
if ((!gdk_event_get_state (event, &state) || (state & GDK_BUTTON1_MASK) != 0) &&
|
||
gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN)
|
||
{
|
||
if (!priv->drag_already_pressed)
|
||
{
|
||
if (pointer_on_menu_widget (menu, x_root, y_root))
|
||
{
|
||
priv->drag_start_y = y_root;
|
||
priv->initial_drag_offset = priv->scroll_offset;
|
||
priv->drag_scroll_started = FALSE;
|
||
}
|
||
else
|
||
priv->drag_start_y = -1;
|
||
|
||
priv->drag_already_pressed = TRUE;
|
||
}
|
||
|
||
if (priv->drag_start_y < 0 && !priv->drag_scroll_started)
|
||
break;
|
||
|
||
if (priv->drag_scroll_started)
|
||
{
|
||
gint offset, view_height;
|
||
GtkBorder arrow_border;
|
||
gdouble y_diff;
|
||
|
||
y_diff = y_root - priv->drag_start_y;
|
||
offset = priv->initial_drag_offset - y_diff;
|
||
|
||
view_height = gdk_surface_get_height (gtk_widget_get_surface (widget));
|
||
get_arrows_border (menu, &arrow_border);
|
||
|
||
if (priv->upper_arrow_visible)
|
||
view_height -= arrow_border.top;
|
||
|
||
if (priv->lower_arrow_visible)
|
||
view_height -= arrow_border.bottom;
|
||
|
||
offset = CLAMP (offset,
|
||
MIN (priv->scroll_offset, 0),
|
||
MAX (priv->scroll_offset, priv->requested_height - view_height));
|
||
|
||
gtk_menu_scroll_to (menu, offset);
|
||
|
||
retval = TRUE;
|
||
}
|
||
else if (gtk_drag_check_threshold (widget,
|
||
0, priv->drag_start_y,
|
||
0, y_root))
|
||
{
|
||
priv->drag_scroll_started = TRUE;
|
||
gtk_menu_shell_deselect (GTK_MENU_SHELL (menu));
|
||
retval = TRUE;
|
||
}
|
||
}
|
||
break;
|
||
case GDK_ENTER_NOTIFY:
|
||
case GDK_LEAVE_NOTIFY:
|
||
if (priv->drag_scroll_started)
|
||
retval = TRUE;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_stop_navigating_submenu (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
priv->navigation_x = 0;
|
||
priv->navigation_y = 0;
|
||
priv->navigation_width = 0;
|
||
priv->navigation_height = 0;
|
||
|
||
if (priv->navigation_timeout)
|
||
{
|
||
g_source_remove (priv->navigation_timeout);
|
||
priv->navigation_timeout = 0;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_navigating_submenu (GtkMenu *menu,
|
||
gint event_x,
|
||
gint event_y)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
gint width, height;
|
||
|
||
if (!gtk_menu_has_navigation_triangle (menu))
|
||
return FALSE;
|
||
|
||
width = priv->navigation_width;
|
||
height = priv->navigation_height;
|
||
|
||
/* Check if x/y are in the triangle spanned by the navigation parameters */
|
||
|
||
/* 1) Move the coordinates so the triangle starts at 0,0 */
|
||
event_x -= priv->navigation_x;
|
||
event_y -= priv->navigation_y;
|
||
|
||
/* 2) Ensure both legs move along the positive axis */
|
||
if (width < 0)
|
||
{
|
||
event_x = -event_x;
|
||
width = -width;
|
||
}
|
||
if (height < 0)
|
||
{
|
||
event_y = -event_y;
|
||
height = -height;
|
||
}
|
||
|
||
/* 3) Check that the given coordinate is inside the triangle. The formula
|
||
* is a transformed form of this formula: x/w + y/h <= 1
|
||
*/
|
||
if (event_x >= 0 && event_y >= 0 &&
|
||
event_x * height + event_y * width <= width * height)
|
||
{
|
||
return TRUE;
|
||
}
|
||
else
|
||
{
|
||
gtk_menu_stop_navigating_submenu (menu);
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_deactivate (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkWidget *parent;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu_shell));
|
||
|
||
parent = menu_shell->priv->parent_menu_shell;
|
||
|
||
menu_shell->priv->activate_time = 0;
|
||
gtk_menu_popdown (GTK_MENU (menu_shell));
|
||
|
||
if (parent)
|
||
gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
|
||
}
|
||
|
||
static void
|
||
gtk_menu_position_legacy (GtkMenu *menu,
|
||
gboolean set_scroll_offset)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *widget;
|
||
GtkRequisition requisition;
|
||
gint x, y;
|
||
gint scroll_offset;
|
||
GdkDisplay *display;
|
||
GdkMonitor *monitor;
|
||
GdkRectangle workarea;
|
||
gint monitor_num;
|
||
GdkDevice *pointer;
|
||
GtkBorder border;
|
||
gint i;
|
||
|
||
widget = GTK_WIDGET (menu);
|
||
|
||
display = gtk_widget_get_display (widget);
|
||
pointer = _gtk_menu_shell_get_grab_device (GTK_MENU_SHELL (menu));
|
||
gdk_device_get_position (pointer, &x, &y);
|
||
|
||
/* Realize so we have the proper width and height to figure out
|
||
* the right place to popup the menu.
|
||
*/
|
||
gtk_widget_realize (priv->toplevel);
|
||
|
||
_gtk_window_get_shadow_width (GTK_WINDOW (priv->toplevel), &border);
|
||
|
||
requisition.width = gtk_widget_get_allocated_width (widget);
|
||
requisition.height = gtk_widget_get_allocated_height (widget);
|
||
|
||
monitor = gdk_display_get_monitor_at_point (display, x, y);
|
||
monitor_num = 0;
|
||
for (i = 0; ; i++)
|
||
{
|
||
GdkMonitor *m = gdk_display_get_monitor (display, i);
|
||
|
||
if (m == monitor)
|
||
{
|
||
monitor_num = i;
|
||
break;
|
||
}
|
||
if (m == NULL)
|
||
break;
|
||
}
|
||
|
||
priv->monitor_num = monitor_num;
|
||
priv->initially_pushed_in = FALSE;
|
||
|
||
/* Set the type hint here to allow custom position functions
|
||
* to set a different hint
|
||
*/
|
||
if (!gtk_widget_get_visible (priv->toplevel))
|
||
gtk_window_set_type_hint (GTK_WINDOW (priv->toplevel), GDK_SURFACE_TYPE_HINT_POPUP_MENU);
|
||
|
||
if (priv->position_func)
|
||
{
|
||
(* priv->position_func) (menu, &x, &y, &priv->initially_pushed_in,
|
||
priv->position_func_data);
|
||
|
||
if (priv->monitor_num < 0)
|
||
priv->monitor_num = monitor_num;
|
||
|
||
monitor = gdk_display_get_monitor (display, priv->monitor_num);
|
||
gdk_monitor_get_workarea (monitor, &workarea);
|
||
}
|
||
else
|
||
{
|
||
gint space_left, space_right, space_above, space_below;
|
||
gint needed_width;
|
||
gint needed_height;
|
||
gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
|
||
|
||
/* The placement of popup menus horizontally works like this (with
|
||
* RTL in parentheses)
|
||
*
|
||
* - If there is enough room to the right (left) of the mouse cursor,
|
||
* position the menu there.
|
||
*
|
||
* - Otherwise, if if there is enough room to the left (right) of the
|
||
* mouse cursor, position the menu there.
|
||
*
|
||
* - Otherwise if the menu is smaller than the monitor, position it
|
||
* on the side of the mouse cursor that has the most space available
|
||
*
|
||
* - Otherwise (if there is simply not enough room for the menu on the
|
||
* monitor), position it as far left (right) as possible.
|
||
*
|
||
* Positioning in the vertical direction is similar: first try below
|
||
* mouse cursor, then above.
|
||
*/
|
||
monitor = gdk_display_get_monitor (display, priv->monitor_num);
|
||
gdk_monitor_get_workarea (monitor, &workarea);
|
||
|
||
space_left = x - workarea.x;
|
||
space_right = workarea.x + workarea.width - x - 1;
|
||
space_above = y - workarea.y;
|
||
space_below = workarea.y + workarea.height - y - 1;
|
||
|
||
/* Position horizontally. */
|
||
|
||
/* the amount of space we need to position the menu.
|
||
* Note the menu is offset "thickness" pixels
|
||
*/
|
||
needed_width = requisition.width;
|
||
|
||
if (needed_width <= space_left ||
|
||
needed_width <= space_right)
|
||
{
|
||
if ((rtl && needed_width <= space_left) ||
|
||
(!rtl && needed_width > space_right))
|
||
{
|
||
/* position left */
|
||
x = x - requisition.width + 1;
|
||
}
|
||
else
|
||
{
|
||
/* position right */
|
||
}
|
||
|
||
/* x is clamped on-screen further down */
|
||
}
|
||
else if (requisition.width <= workarea.width)
|
||
{
|
||
/* the menu is too big to fit on either side of the mouse
|
||
* cursor, but smaller than the monitor. Position it on
|
||
* the side that has the most space
|
||
*/
|
||
if (space_left > space_right)
|
||
{
|
||
/* left justify */
|
||
x = workarea.x;
|
||
}
|
||
else
|
||
{
|
||
/* right justify */
|
||
x = workarea.x + workarea.width - requisition.width;
|
||
}
|
||
}
|
||
else /* menu is simply too big for the monitor */
|
||
{
|
||
if (rtl)
|
||
{
|
||
/* right justify */
|
||
x = workarea.x + workarea.width - requisition.width;
|
||
}
|
||
else
|
||
{
|
||
/* left justify */
|
||
x = workarea.x;
|
||
}
|
||
}
|
||
|
||
/* Position vertically.
|
||
* The algorithm is the same as above, but simpler
|
||
* because we don't have to take RTL into account.
|
||
*/
|
||
needed_height = requisition.height;
|
||
|
||
if (needed_height <= space_above ||
|
||
needed_height <= space_below)
|
||
{
|
||
if (needed_height > space_below)
|
||
y = y - requisition.height + 1;
|
||
|
||
y = CLAMP (y, workarea.y,
|
||
workarea.y + workarea.height - requisition.height);
|
||
}
|
||
else if (needed_height > space_below && needed_height > space_above)
|
||
{
|
||
if (space_below >= space_above)
|
||
y = workarea.y + workarea.height - requisition.height;
|
||
else
|
||
y = workarea.y;
|
||
}
|
||
else
|
||
{
|
||
y = workarea.y;
|
||
}
|
||
}
|
||
|
||
scroll_offset = 0;
|
||
|
||
if (y + requisition.height > workarea.y + workarea.height)
|
||
{
|
||
if (priv->initially_pushed_in)
|
||
scroll_offset += (workarea.y + workarea.height) - requisition.height - y;
|
||
y = (workarea.y + workarea.height) - requisition.height;
|
||
}
|
||
|
||
if (y < workarea.y)
|
||
{
|
||
if (priv->initially_pushed_in)
|
||
scroll_offset += workarea.y - y;
|
||
y = workarea.y;
|
||
}
|
||
|
||
x = CLAMP (x, workarea.x, MAX (workarea.x, workarea.x + workarea.width - requisition.width));
|
||
|
||
x -= border.left;
|
||
y -= border.top;
|
||
|
||
if (GTK_MENU_SHELL (menu)->priv->active)
|
||
{
|
||
priv->have_position = TRUE;
|
||
priv->position_x = x;
|
||
priv->position_y = y;
|
||
}
|
||
|
||
if (scroll_offset != 0)
|
||
{
|
||
GtkBorder arrow_border;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
scroll_offset += arrow_border.top;
|
||
}
|
||
|
||
gtk_window_move (GTK_WINDOW (priv->toplevel), x, y);
|
||
|
||
if (set_scroll_offset)
|
||
priv->scroll_offset = scroll_offset;
|
||
}
|
||
|
||
static GdkGravity
|
||
get_horizontally_flipped_anchor (GdkGravity anchor)
|
||
{
|
||
switch (anchor)
|
||
{
|
||
case GDK_GRAVITY_STATIC:
|
||
case GDK_GRAVITY_NORTH_WEST:
|
||
return GDK_GRAVITY_NORTH_EAST;
|
||
case GDK_GRAVITY_NORTH:
|
||
return GDK_GRAVITY_NORTH;
|
||
case GDK_GRAVITY_NORTH_EAST:
|
||
return GDK_GRAVITY_NORTH_WEST;
|
||
case GDK_GRAVITY_WEST:
|
||
return GDK_GRAVITY_EAST;
|
||
case GDK_GRAVITY_CENTER:
|
||
return GDK_GRAVITY_CENTER;
|
||
case GDK_GRAVITY_EAST:
|
||
return GDK_GRAVITY_WEST;
|
||
case GDK_GRAVITY_SOUTH_WEST:
|
||
return GDK_GRAVITY_SOUTH_EAST;
|
||
case GDK_GRAVITY_SOUTH:
|
||
return GDK_GRAVITY_SOUTH;
|
||
case GDK_GRAVITY_SOUTH_EAST:
|
||
return GDK_GRAVITY_SOUTH_WEST;
|
||
default:
|
||
g_warning ("unknown GdkGravity: %d", anchor);
|
||
return anchor;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_position (GtkMenu *menu,
|
||
gboolean set_scroll_offset)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GdkSurface *rect_surface = NULL;
|
||
GdkRectangle rect;
|
||
GtkTextDirection text_direction = GTK_TEXT_DIR_NONE;
|
||
GdkGravity rect_anchor;
|
||
GdkGravity menu_anchor;
|
||
GdkAnchorHints anchor_hints;
|
||
gint rect_anchor_dx, rect_anchor_dy;
|
||
GdkSurface *toplevel;
|
||
gboolean emulated_move_to_rect = FALSE;
|
||
|
||
rect_anchor = priv->rect_anchor;
|
||
menu_anchor = priv->menu_anchor;
|
||
anchor_hints = priv->anchor_hints;
|
||
rect_anchor_dx = priv->rect_anchor_dx;
|
||
rect_anchor_dy = priv->rect_anchor_dy;
|
||
|
||
if (priv->rect_surface)
|
||
{
|
||
rect_surface = priv->rect_surface;
|
||
rect = priv->rect;
|
||
}
|
||
else if (priv->widget)
|
||
{
|
||
rect_surface = gtk_widget_get_surface (priv->widget);
|
||
gtk_widget_get_surface_allocation (priv->widget, &rect);
|
||
text_direction = gtk_widget_get_direction (priv->widget);
|
||
}
|
||
else if (!priv->position_func)
|
||
{
|
||
GtkWidget *attach_widget;
|
||
GdkDevice *grab_device;
|
||
|
||
/*
|
||
* One of the legacy gtk_menu_popup*() functions were used to popup but
|
||
* without a custom positioning function, so make an attempt to let the
|
||
* backend do the position constraining when required conditions are met.
|
||
*/
|
||
|
||
grab_device = _gtk_menu_shell_get_grab_device (GTK_MENU_SHELL (menu));
|
||
attach_widget = gtk_menu_get_attach_widget (menu);
|
||
|
||
if (grab_device && attach_widget)
|
||
{
|
||
rect = (GdkRectangle) { 0, 0, 1, 1 };
|
||
|
||
rect_surface = gtk_widget_get_surface (attach_widget);
|
||
gdk_surface_get_device_position (rect_surface, grab_device,
|
||
&rect.x, &rect.y, NULL);
|
||
text_direction = gtk_widget_get_direction (attach_widget);
|
||
rect_anchor = GDK_GRAVITY_SOUTH_EAST;
|
||
menu_anchor = GDK_GRAVITY_NORTH_WEST;
|
||
anchor_hints = GDK_ANCHOR_FLIP | GDK_ANCHOR_SLIDE | GDK_ANCHOR_RESIZE;
|
||
rect_anchor_dx = 0;
|
||
rect_anchor_dy = 0;
|
||
emulated_move_to_rect = TRUE;
|
||
}
|
||
}
|
||
|
||
if (!rect_surface)
|
||
{
|
||
gtk_menu_position_legacy (menu, set_scroll_offset);
|
||
return;
|
||
}
|
||
|
||
/* Realize so we have the proper width and height to figure out
|
||
* the right place to popup the menu.
|
||
*/
|
||
gtk_widget_realize (priv->toplevel);
|
||
|
||
if (!gtk_widget_get_visible (priv->toplevel))
|
||
gtk_window_set_type_hint (GTK_WINDOW (priv->toplevel), priv->menu_type_hint);
|
||
|
||
if (text_direction == GTK_TEXT_DIR_NONE)
|
||
text_direction = gtk_widget_get_direction (GTK_WIDGET (menu));
|
||
|
||
if (text_direction == GTK_TEXT_DIR_RTL)
|
||
{
|
||
rect_anchor = get_horizontally_flipped_anchor (rect_anchor);
|
||
menu_anchor = get_horizontally_flipped_anchor (menu_anchor);
|
||
}
|
||
|
||
toplevel = gtk_widget_get_surface (priv->toplevel);
|
||
|
||
gdk_surface_set_transient_for (toplevel, rect_surface);
|
||
|
||
g_signal_handlers_disconnect_by_func (toplevel, moved_to_rect_cb, menu);
|
||
|
||
if (!emulated_move_to_rect)
|
||
g_signal_connect (toplevel, "moved-to-rect", G_CALLBACK (moved_to_rect_cb),
|
||
menu);
|
||
|
||
|
||
gdk_surface_move_to_rect (toplevel,
|
||
&rect,
|
||
rect_anchor,
|
||
menu_anchor,
|
||
anchor_hints,
|
||
rect_anchor_dx,
|
||
rect_anchor_dy);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_remove_scroll_timeout (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
if (priv->scroll_timeout)
|
||
{
|
||
g_source_remove (priv->scroll_timeout);
|
||
priv->scroll_timeout = 0;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_stop_scrolling (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkCssNode *top_arrow_node, *bottom_arrow_node;
|
||
GtkStateFlags state;
|
||
|
||
gtk_menu_remove_scroll_timeout (menu);
|
||
priv->upper_arrow_prelight = FALSE;
|
||
priv->lower_arrow_prelight = FALSE;
|
||
|
||
top_arrow_node = gtk_widget_get_css_node (priv->top_arrow_widget);
|
||
state = gtk_css_node_get_state (top_arrow_node);
|
||
gtk_css_node_set_state (top_arrow_node, state & ~GTK_STATE_FLAG_PRELIGHT);
|
||
|
||
bottom_arrow_node = gtk_widget_get_css_node (priv->bottom_arrow_widget);
|
||
state = gtk_css_node_get_state (bottom_arrow_node);
|
||
gtk_css_node_set_state (bottom_arrow_node, state & ~GTK_STATE_FLAG_PRELIGHT);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_scroll_to (GtkMenu *menu,
|
||
gint offset)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkCssNode *top_arrow_node, *bottom_arrow_node;
|
||
|
||
top_arrow_node = gtk_widget_get_css_node (priv->top_arrow_widget);
|
||
gtk_css_node_set_visible (top_arrow_node, priv->upper_arrow_visible);
|
||
gtk_css_node_set_state (top_arrow_node, priv->upper_arrow_state);
|
||
|
||
bottom_arrow_node = gtk_widget_get_css_node (priv->bottom_arrow_widget);
|
||
gtk_css_node_set_visible (bottom_arrow_node, priv->lower_arrow_visible);
|
||
gtk_css_node_set_state (bottom_arrow_node, priv->lower_arrow_state);
|
||
|
||
priv->scroll_offset = offset;
|
||
}
|
||
|
||
static gboolean
|
||
compute_child_offset (GtkMenu *menu,
|
||
GtkWidget *menu_item,
|
||
gint *offset,
|
||
gint *height,
|
||
gboolean *is_last_child)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
gint item_top_attach;
|
||
gint item_bottom_attach;
|
||
gint child_offset = 0;
|
||
gint i;
|
||
|
||
get_effective_child_attach (menu_item, NULL, NULL,
|
||
&item_top_attach, &item_bottom_attach);
|
||
|
||
/* there is a possibility that we get called before _size_request,
|
||
* so check the height table for safety.
|
||
*/
|
||
if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
|
||
return FALSE;
|
||
|
||
/* when we have a row with only invisible children, its height will
|
||
* be zero, so there's no need to check WIDGET_VISIBLE here
|
||
*/
|
||
for (i = 0; i < item_top_attach; i++)
|
||
child_offset += priv->heights[i];
|
||
|
||
if (is_last_child)
|
||
*is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
|
||
if (offset)
|
||
*offset = child_offset;
|
||
if (height)
|
||
*height = priv->heights[item_top_attach];
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
|
||
GtkWidget *menu_item)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (menu_shell);
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkWidget *widget = GTK_WIDGET (menu_shell);
|
||
gint child_offset, child_height;
|
||
gint height;
|
||
gint y;
|
||
gint arrow_height;
|
||
gboolean last_child = 0;
|
||
|
||
/* We need to check if the selected item fully visible.
|
||
* If not we need to scroll the menu so that it becomes fully
|
||
* visible.
|
||
*/
|
||
if (compute_child_offset (menu, menu_item,
|
||
&child_offset, &child_height, &last_child))
|
||
{
|
||
y = priv->scroll_offset;
|
||
height = gdk_surface_get_height (gtk_widget_get_surface (widget));
|
||
|
||
if (child_offset < y)
|
||
{
|
||
/* Ignore the enter event we might get if the pointer
|
||
* is on the menu
|
||
*/
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
gtk_menu_scroll_to (menu, child_offset);
|
||
}
|
||
else
|
||
{
|
||
GtkBorder arrow_border;
|
||
|
||
arrow_height = 0;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
arrow_height = arrow_border.top + arrow_border.bottom;
|
||
|
||
if (child_offset + child_height > y + height - arrow_height)
|
||
{
|
||
arrow_height = arrow_border.bottom + arrow_border.top;
|
||
y = child_offset + child_height - height + arrow_height;
|
||
|
||
/* Ignore the enter event we might get if the pointer
|
||
* is on the menu
|
||
*/
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
gtk_menu_scroll_to (menu, y);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_select_item (GtkMenuShell *menu_shell,
|
||
GtkWidget *menu_item)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (menu_shell);
|
||
|
||
if (gtk_widget_get_realized (GTK_WIDGET (menu)))
|
||
gtk_menu_scroll_item_visible (menu_shell, menu_item);
|
||
|
||
GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_display:
|
||
* @menu: a #GtkMenu
|
||
* @display: (allow-none): a #GdkDisplay, or %NULL if the display should be
|
||
* determined by the widget the menu is attached to
|
||
*
|
||
* Sets the #GdkDisplay on which the menu will be displayed.
|
||
*/
|
||
void
|
||
gtk_menu_set_display (GtkMenu *menu,
|
||
GdkDisplay *display)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (display == NULL || GDK_IS_DISPLAY (display));
|
||
|
||
g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-display"), display);
|
||
|
||
if (display)
|
||
{
|
||
menu_change_display (menu, display);
|
||
}
|
||
else
|
||
{
|
||
GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
|
||
if (attach_widget)
|
||
attach_widget_display_changed (attach_widget, NULL, menu);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_attach:
|
||
* @menu: a #GtkMenu
|
||
* @child: a #GtkMenuItem
|
||
* @left_attach: The column number to attach the left side of the item to
|
||
* @right_attach: The column number to attach the right side of the item to
|
||
* @top_attach: The row number to attach the top of the item to
|
||
* @bottom_attach: The row number to attach the bottom of the item to
|
||
*
|
||
* Adds a new #GtkMenuItem to a (table) menu. The number of “cells” that
|
||
* an item will occupy is specified by @left_attach, @right_attach,
|
||
* @top_attach and @bottom_attach. These each represent the leftmost,
|
||
* rightmost, uppermost and lower column and row numbers of the table.
|
||
* (Columns and rows are indexed from zero).
|
||
*
|
||
* Note that this function is not related to gtk_menu_detach().
|
||
*/
|
||
void
|
||
gtk_menu_attach (GtkMenu *menu,
|
||
GtkWidget *child,
|
||
guint left_attach,
|
||
guint right_attach,
|
||
guint top_attach,
|
||
guint bottom_attach)
|
||
{
|
||
GtkMenuShell *menu_shell;
|
||
GtkWidget *parent;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
g_return_if_fail (GTK_IS_MENU_ITEM (child));
|
||
parent = gtk_widget_get_parent (child);
|
||
g_return_if_fail (parent == NULL || parent == GTK_WIDGET (menu));
|
||
g_return_if_fail (left_attach < right_attach);
|
||
g_return_if_fail (top_attach < bottom_attach);
|
||
|
||
menu_shell = GTK_MENU_SHELL (menu);
|
||
|
||
if (!parent)
|
||
{
|
||
AttachInfo *ai = get_attach_info (child);
|
||
|
||
ai->left_attach = left_attach;
|
||
ai->right_attach = right_attach;
|
||
ai->top_attach = top_attach;
|
||
ai->bottom_attach = bottom_attach;
|
||
|
||
menu_shell->priv->children = g_list_append (menu_shell->priv->children, child);
|
||
gtk_widget_insert_before (child, GTK_WIDGET (menu), menu->priv->bottom_arrow_widget);
|
||
|
||
menu_queue_resize (menu);
|
||
}
|
||
else
|
||
{
|
||
gtk_container_child_set (GTK_CONTAINER (parent), child,
|
||
"left-attach", left_attach,
|
||
"right-attach", right_attach,
|
||
"top-attach", top_attach,
|
||
"bottom-attach", bottom_attach,
|
||
NULL);
|
||
}
|
||
}
|
||
|
||
static gint
|
||
gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
|
||
{
|
||
return MENU_POPUP_DELAY;
|
||
}
|
||
|
||
static GtkWidget *
|
||
find_child_containing (GtkMenuShell *menu_shell,
|
||
int left,
|
||
int right,
|
||
int top,
|
||
int bottom)
|
||
{
|
||
GList *list;
|
||
|
||
/* find a child which includes the area given by
|
||
* left, right, top, bottom.
|
||
*/
|
||
for (list = menu_shell->priv->children; list; list = list->next)
|
||
{
|
||
gint l, r, t, b;
|
||
|
||
if (!_gtk_menu_item_is_selectable (list->data))
|
||
continue;
|
||
|
||
get_effective_child_attach (list->data, &l, &r, &t, &b);
|
||
|
||
if (l <= left && right <= r && t <= top && bottom <= b)
|
||
return GTK_WIDGET (list->data);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_move_current (GtkMenuShell *menu_shell,
|
||
GtkMenuDirectionType direction)
|
||
{
|
||
GtkMenu *menu = GTK_MENU (menu_shell);
|
||
gint i;
|
||
gint l, r, t, b;
|
||
GtkWidget *match = NULL;
|
||
|
||
if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
|
||
{
|
||
switch (direction)
|
||
{
|
||
case GTK_MENU_DIR_CHILD:
|
||
direction = GTK_MENU_DIR_PARENT;
|
||
break;
|
||
case GTK_MENU_DIR_PARENT:
|
||
direction = GTK_MENU_DIR_CHILD;
|
||
break;
|
||
case GTK_MENU_DIR_NEXT:
|
||
case GTK_MENU_DIR_PREV:
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* use special table menu key bindings */
|
||
if (menu_shell->priv->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
|
||
{
|
||
get_effective_child_attach (menu_shell->priv->active_menu_item, &l, &r, &t, &b);
|
||
|
||
if (direction == GTK_MENU_DIR_NEXT)
|
||
{
|
||
for (i = b; i < gtk_menu_get_n_rows (menu); i++)
|
||
{
|
||
match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
|
||
if (match)
|
||
break;
|
||
}
|
||
|
||
if (!match)
|
||
{
|
||
/* wrap around */
|
||
for (i = 0; i < t; i++)
|
||
{
|
||
match = find_child_containing (menu_shell,
|
||
l, l + 1, i, i + 1);
|
||
if (match)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
else if (direction == GTK_MENU_DIR_PREV)
|
||
{
|
||
for (i = t; i > 0; i--)
|
||
{
|
||
match = find_child_containing (menu_shell,
|
||
l, l + 1, i - 1, i);
|
||
if (match)
|
||
break;
|
||
}
|
||
|
||
if (!match)
|
||
{
|
||
/* wrap around */
|
||
for (i = gtk_menu_get_n_rows (menu); i > b; i--)
|
||
{
|
||
match = find_child_containing (menu_shell,
|
||
l, l + 1, i - 1, i);
|
||
if (match)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
else if (direction == GTK_MENU_DIR_PARENT)
|
||
{
|
||
/* we go one left if possible */
|
||
if (l > 0)
|
||
match = find_child_containing (menu_shell,
|
||
l - 1, l, t, t + 1);
|
||
|
||
if (!match)
|
||
{
|
||
GtkWidget *parent = menu_shell->priv->parent_menu_shell;
|
||
|
||
if (!parent
|
||
|| g_list_length (GTK_MENU_SHELL (parent)->priv->children) <= 1)
|
||
match = menu_shell->priv->active_menu_item;
|
||
}
|
||
}
|
||
else if (direction == GTK_MENU_DIR_CHILD)
|
||
{
|
||
/* we go one right if possible */
|
||
if (r < gtk_menu_get_n_columns (menu))
|
||
match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
|
||
|
||
if (!match)
|
||
{
|
||
GtkWidget *parent = menu_shell->priv->parent_menu_shell;
|
||
|
||
if (! GTK_MENU_ITEM (menu_shell->priv->active_menu_item)->priv->submenu &&
|
||
(!parent ||
|
||
g_list_length (GTK_MENU_SHELL (parent)->priv->children) <= 1))
|
||
match = menu_shell->priv->active_menu_item;
|
||
}
|
||
}
|
||
|
||
if (match)
|
||
{
|
||
gtk_menu_shell_select_item (menu_shell, match);
|
||
return;
|
||
}
|
||
}
|
||
|
||
GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
|
||
}
|
||
|
||
static gint
|
||
get_visible_size (GtkMenu *menu)
|
||
{
|
||
GtkAllocation allocation;
|
||
GtkWidget *widget = GTK_WIDGET (menu);
|
||
GtkBorder arrow_border;
|
||
gint menu_height;
|
||
|
||
gtk_widget_get_allocation (widget, &allocation);
|
||
|
||
menu_height = allocation.height;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
menu_height -= arrow_border.top;
|
||
menu_height -= arrow_border.bottom;
|
||
|
||
return menu_height;
|
||
}
|
||
|
||
/* Find the sensitive on-screen child containing @y, or if none,
|
||
* the nearest selectable onscreen child. (%NULL if none)
|
||
*/
|
||
static GtkWidget *
|
||
child_at (GtkMenu *menu,
|
||
gint y)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
|
||
GtkWidget *child = NULL;
|
||
gint child_offset = 0;
|
||
GList *children;
|
||
gint menu_height;
|
||
gint lower, upper; /* Onscreen bounds */
|
||
|
||
menu_height = get_visible_size (menu);
|
||
lower = priv->scroll_offset;
|
||
upper = priv->scroll_offset + menu_height;
|
||
|
||
for (children = menu_shell->priv->children; children; children = children->next)
|
||
{
|
||
if (gtk_widget_get_visible (children->data))
|
||
{
|
||
GtkRequisition child_requisition;
|
||
|
||
gtk_widget_get_preferred_size (children->data,
|
||
&child_requisition, NULL);
|
||
|
||
if (_gtk_menu_item_is_selectable (children->data) &&
|
||
child_offset >= lower &&
|
||
child_offset + child_requisition.height <= upper)
|
||
{
|
||
child = children->data;
|
||
|
||
if (child_offset + child_requisition.height > y)
|
||
return child;
|
||
}
|
||
|
||
child_offset += child_requisition.height;
|
||
}
|
||
}
|
||
|
||
return child;
|
||
}
|
||
|
||
static gint
|
||
get_menu_height (GtkMenu *menu)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
GtkBorder arrow_border;
|
||
gint height;
|
||
|
||
height = priv->requested_height;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
height -= arrow_border.top;
|
||
height -= arrow_border.bottom;
|
||
|
||
return height;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_real_move_scroll (GtkMenu *menu,
|
||
GtkScrollType type)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
gint page_size = get_visible_size (menu);
|
||
gint end_position = get_menu_height (menu);
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
|
||
|
||
switch ((guint) type)
|
||
{
|
||
case GTK_SCROLL_PAGE_UP:
|
||
case GTK_SCROLL_PAGE_DOWN:
|
||
{
|
||
gint old_offset;
|
||
gint new_offset;
|
||
gint child_offset = 0;
|
||
gboolean old_upper_arrow_visible;
|
||
gint step;
|
||
|
||
if (type == GTK_SCROLL_PAGE_UP)
|
||
step = - page_size;
|
||
else
|
||
step = page_size;
|
||
|
||
if (menu_shell->priv->active_menu_item)
|
||
{
|
||
gint child_height;
|
||
|
||
if (compute_child_offset (menu, menu_shell->priv->active_menu_item,
|
||
&child_offset, &child_height, NULL))
|
||
child_offset += child_height / 2;
|
||
}
|
||
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
old_upper_arrow_visible = priv->upper_arrow_visible;
|
||
old_offset = priv->scroll_offset;
|
||
|
||
new_offset = priv->scroll_offset + step;
|
||
new_offset = CLAMP (new_offset, 0, end_position - page_size);
|
||
|
||
gtk_menu_scroll_to (menu, new_offset);
|
||
|
||
if (menu_shell->priv->active_menu_item)
|
||
{
|
||
GtkWidget *new_child;
|
||
gboolean new_upper_arrow_visible = priv->upper_arrow_visible;
|
||
GtkBorder arrow_border;
|
||
|
||
get_arrows_border (menu, &arrow_border);
|
||
|
||
if (priv->scroll_offset != old_offset)
|
||
step = priv->scroll_offset - old_offset;
|
||
|
||
step -= (new_upper_arrow_visible - old_upper_arrow_visible) * arrow_border.top;
|
||
|
||
new_child = child_at (menu, child_offset + step);
|
||
if (new_child)
|
||
gtk_menu_shell_select_item (menu_shell, new_child);
|
||
}
|
||
}
|
||
break;
|
||
case GTK_SCROLL_START:
|
||
/* Ignore the enter event we might get if the pointer is on the menu */
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
gtk_menu_shell_select_first (menu_shell, TRUE);
|
||
break;
|
||
case GTK_SCROLL_END:
|
||
/* Ignore the enter event we might get if the pointer is on the menu */
|
||
menu_shell->priv->ignore_enter = TRUE;
|
||
_gtk_menu_shell_select_last (menu_shell, TRUE);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_monitor:
|
||
* @menu: a #GtkMenu
|
||
* @monitor_num: the number of the monitor on which the menu should
|
||
* be popped up
|
||
*
|
||
* Informs GTK+ on which monitor a menu should be popped up.
|
||
* See gdk_monitor_get_geometry().
|
||
*
|
||
* This function should be called from a #GtkMenuPositionFunc
|
||
* if the menu should not appear on the same monitor as the pointer.
|
||
* This information can’t be reliably inferred from the coordinates
|
||
* returned by a #GtkMenuPositionFunc, since, for very long menus,
|
||
* these coordinates may extend beyond the monitor boundaries or even
|
||
* the screen boundaries.
|
||
*/
|
||
void
|
||
gtk_menu_set_monitor (GtkMenu *menu,
|
||
gint monitor_num)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
if (priv->monitor_num != monitor_num)
|
||
{
|
||
priv->monitor_num = monitor_num;
|
||
g_object_notify (G_OBJECT (menu), "monitor");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_monitor:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Retrieves the number of the monitor on which to show the menu.
|
||
*
|
||
* Returns: the number of the monitor on which the menu should
|
||
* be popped up or -1, if no monitor has been set
|
||
*/
|
||
gint
|
||
gtk_menu_get_monitor (GtkMenu *menu)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), -1);
|
||
|
||
return menu->priv->monitor_num;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_place_on_monitor:
|
||
* @menu: a #GtkMenu
|
||
* @monitor: the monitor to place the menu on
|
||
*
|
||
* Places @menu on the given monitor.
|
||
*/
|
||
void
|
||
gtk_menu_place_on_monitor (GtkMenu *menu,
|
||
GdkMonitor *monitor)
|
||
{
|
||
GdkDisplay *display;
|
||
gint i, monitor_num;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
display = gtk_widget_get_display (GTK_WIDGET (menu));
|
||
monitor_num = 0;
|
||
for (i = 0; ; i++)
|
||
{
|
||
GdkMonitor *m = gdk_display_get_monitor (display, i);
|
||
if (m == monitor)
|
||
{
|
||
monitor_num = i;
|
||
break;
|
||
}
|
||
if (m == NULL)
|
||
break;
|
||
}
|
||
|
||
gtk_menu_set_monitor (menu, monitor_num);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_for_attach_widget:
|
||
* @widget: a #GtkWidget
|
||
*
|
||
* Returns a list of the menus which are attached to this widget.
|
||
* This list is owned by GTK+ and must not be modified.
|
||
*
|
||
* Returns: (element-type GtkWidget) (transfer none): the list
|
||
* of menus attached to his widget.
|
||
*/
|
||
GList*
|
||
gtk_menu_get_for_attach_widget (GtkWidget *widget)
|
||
{
|
||
GList *list;
|
||
|
||
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
|
||
|
||
list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
|
||
|
||
return list;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_grab_notify (GtkWidget *widget,
|
||
gboolean was_grabbed)
|
||
{
|
||
GtkMenu *menu;
|
||
GtkWidget *toplevel;
|
||
GtkWindowGroup *group;
|
||
GtkWidget *grab;
|
||
GdkDevice *pointer;
|
||
|
||
menu = GTK_MENU (widget);
|
||
pointer = _gtk_menu_shell_get_grab_device (GTK_MENU_SHELL (widget));
|
||
|
||
if (!pointer ||
|
||
!gtk_widget_device_is_shadowed (widget, pointer))
|
||
return;
|
||
|
||
toplevel = gtk_widget_get_toplevel (widget);
|
||
|
||
if (!GTK_IS_WINDOW (toplevel))
|
||
return;
|
||
|
||
group = gtk_window_get_group (GTK_WINDOW (toplevel));
|
||
grab = gtk_window_group_get_current_grab (group);
|
||
|
||
if (GTK_MENU_SHELL (widget)->priv->active && !GTK_IS_MENU_SHELL (grab))
|
||
gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
|
||
|
||
menu->priv->drag_scroll_started = FALSE;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_set_reserve_toggle_size:
|
||
* @menu: a #GtkMenu
|
||
* @reserve_toggle_size: whether to reserve size for toggles
|
||
*
|
||
* Sets whether the menu should reserve space for drawing toggles
|
||
* or icons, regardless of their actual presence.
|
||
*/
|
||
void
|
||
gtk_menu_set_reserve_toggle_size (GtkMenu *menu,
|
||
gboolean reserve_toggle_size)
|
||
{
|
||
GtkMenuPrivate *priv = menu->priv;
|
||
gboolean no_toggle_size;
|
||
|
||
g_return_if_fail (GTK_IS_MENU (menu));
|
||
|
||
no_toggle_size = !reserve_toggle_size;
|
||
|
||
if (priv->no_toggle_size != no_toggle_size)
|
||
{
|
||
priv->no_toggle_size = no_toggle_size;
|
||
|
||
g_object_notify (G_OBJECT (menu), "reserve-toggle-size");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_get_reserve_toggle_size:
|
||
* @menu: a #GtkMenu
|
||
*
|
||
* Returns whether the menu reserves space for toggles and
|
||
* icons, regardless of their actual presence.
|
||
*
|
||
* Returns: Whether the menu reserves toggle space
|
||
*/
|
||
gboolean
|
||
gtk_menu_get_reserve_toggle_size (GtkMenu *menu)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
|
||
|
||
return !menu->priv->no_toggle_size;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_new_from_model:
|
||
* @model: a #GMenuModel
|
||
*
|
||
* Creates a #GtkMenu and populates it with menu items and
|
||
* submenus according to @model.
|
||
*
|
||
* The created menu items are connected to actions found in the
|
||
* #GtkApplicationWindow to which the menu belongs - typically
|
||
* by means of being attached to a widget (see gtk_menu_attach_to_widget())
|
||
* that is contained within the #GtkApplicationWindows widget hierarchy.
|
||
*
|
||
* Actions can also be added using gtk_widget_insert_action_group() on the menu's
|
||
* attach widget or on any of its parent widgets.
|
||
*
|
||
* Returns: a new #GtkMenu
|
||
*/
|
||
GtkWidget *
|
||
gtk_menu_new_from_model (GMenuModel *model)
|
||
{
|
||
GtkWidget *menu;
|
||
|
||
g_return_val_if_fail (G_IS_MENU_MODEL (model), NULL);
|
||
|
||
menu = gtk_menu_new ();
|
||
gtk_menu_shell_bind_model (GTK_MENU_SHELL (menu), model, NULL, TRUE);
|
||
|
||
return menu;
|
||
}
|