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gtk2/gtk/gtkuimanager.c
Javier Jardón edd186e274 Move documentation to inline comments: GtkUIManager
2011-04-18 18:55:34 +01:00

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/*
* GTK - The GIMP Toolkit
* Copyright (C) 1998, 1999 Red Hat, Inc.
* All rights reserved.
*
* This Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Author: James Henstridge <james@daa.com.au>
*
* Modified by the GTK+ Team and others 2003. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <string.h>
#include "gtkaccellabel.h"
#include "gtkactivatable.h"
#include "gtkbuildable.h"
#include "gtkimagemenuitem.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkmenu.h"
#include "gtkmenushellprivate.h"
#include "gtkmenubar.h"
#include "gtkmenutoolbutton.h"
#include "gtkseparatormenuitem.h"
#include "gtkseparatortoolitem.h"
#include "gtktearoffmenuitem.h"
#include "gtktoolbar.h"
#include "gtkuimanager.h"
#include "gtkwindow.h"
#include "gtkprivate.h"
/**
* SECTION:gtkuimanager
* @Short_description: Constructing menus and toolbars from an XML description
* @Title: GtkUIManager
* @See_also:#GtkBuilder
*
* A #GtkUIManager constructs a user interface (menus and toolbars) from
* one or more UI definitions, which reference actions from one or more
* action groups.
*
* <refsect2 id="XML-UI">
* <title>UI Definitions</title>
* <para>
* The UI definitions are specified in an XML format which can be
* roughly described by the following DTD.
*
* <note><para>
* Do not confuse the GtkUIManager UI Definitions described here with
* the similarly named <link linkend="BUILDER-UI">GtkBuilder UI
* Definitions</link>.
* </para></note>
*
* <programlisting>
* <![CDATA[
* <!ELEMENT ui (menubar|toolbar|popup|accelerator)* >
* <!ELEMENT menubar (menuitem|separator|placeholder|menu)* >
* <!ELEMENT menu (menuitem|separator|placeholder|menu)* >
* <!ELEMENT popup (menuitem|separator|placeholder|menu)* >
* <!ELEMENT toolbar (toolitem|separator|placeholder)* >
* <!ELEMENT placeholder (menuitem|toolitem|separator|placeholder|menu)* >
* <!ELEMENT menuitem EMPTY >
* <!ELEMENT toolitem (menu?) >
* <!ELEMENT separator EMPTY >
* <!ELEMENT accelerator EMPTY >
* <!ATTLIST menubar name #IMPLIED
* action #IMPLIED >
* <!ATTLIST toolbar name #IMPLIED
* action #IMPLIED >
* <!ATTLIST popup name #IMPLIED
* action #IMPLIED
* accelerators (true|false) #IMPLIED >
* <!ATTLIST placeholder name #IMPLIED
* action #IMPLIED >
* <!ATTLIST separator name #IMPLIED
* action #IMPLIED
* expand (true|false) #IMPLIED >
* <!ATTLIST menu name #IMPLIED
* action #REQUIRED
* position (top|bot) #IMPLIED >
* <!ATTLIST menuitem name #IMPLIED
* action #REQUIRED
* position (top|bot) #IMPLIED
* always-show-image (true|false) #IMPLIED >
* <!ATTLIST toolitem name #IMPLIED
* action #REQUIRED
* position (top|bot) #IMPLIED >
* <!ATTLIST accelerator name #IMPLIED
* action #REQUIRED >
* ]]>
* </programlisting>
* There are some additional restrictions beyond those specified in the
* DTD, e.g. every toolitem must have a toolbar in its anchestry and
* every menuitem must have a menubar or popup in its anchestry. Since
* a #GMarkup parser is used to parse the UI description, it must not only
* be valid XML, but valid #GMarkup.
*
* If a name is not specified, it defaults to the action. If an action is
* not specified either, the element name is used. The name and action
* attributes must not contain '/' characters after parsing (since that
* would mess up path lookup) and must be usable as XML attributes when
* enclosed in doublequotes, thus they must not '"' characters or references
* to the &quot; entity.
*
* <example>
* <title>A UI definition</title>
* <programlisting>
* <ui>
* <menubar>
* <menu name="FileMenu" action="FileMenuAction">
* <menuitem name="New" action="New2Action" />
* <placeholder name="FileMenuAdditions" />
* </menu>
* <menu name="JustifyMenu" action="JustifyMenuAction">
* <menuitem name="Left" action="justify-left"/>
* <menuitem name="Centre" action="justify-center"/>
* <menuitem name="Right" action="justify-right"/>
* <menuitem name="Fill" action="justify-fill"/>
* </menu>
* </menubar>
* <toolbar action="toolbar1">
* <placeholder name="JustifyToolItems">
* <separator/>
* <toolitem name="Left" action="justify-left"/>
* <toolitem name="Centre" action="justify-center"/>
* <toolitem name="Right" action="justify-right"/>
* <toolitem name="Fill" action="justify-fill"/>
* <separator/>
* </placeholder>
* </toolbar>
* </ui>
* </programlisting>
* </example>
*
* The constructed widget hierarchy is very similar to the element tree
* of the XML, with the exception that placeholders are merged into their
* parents. The correspondence of XML elements to widgets should be
* almost obvious:
* <variablelist>
* <varlistentry>
* <term>menubar</term>
* <listitem><para>a #GtkMenuBar</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>toolbar</term>
* <listitem><para>a #GtkToolbar</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>popup</term>
* <listitem><para>a toplevel #GtkMenu</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>menu</term>
* <listitem><para>a #GtkMenu attached to a menuitem</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>menuitem</term>
* <listitem><para>a #GtkMenuItem subclass, the exact type depends on the
* action</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>toolitem</term>
* <listitem><para>a #GtkToolItem subclass, the exact type depends on the
* action. Note that toolitem elements may contain a menu element, but only
* if their associated action specifies a #GtkMenuToolButton as proxy.</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>separator</term>
* <listitem><para>a #GtkSeparatorMenuItem or
* #GtkSeparatorToolItem</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>accelerator</term>
* <listitem><para>a keyboard accelerator</para></listitem>
* </varlistentry>
* </variablelist>
*
* The "position" attribute determines where a constructed widget is positioned
* wrt. to its siblings in the partially constructed tree. If it is
* "top", the widget is prepended, otherwise it is appended.
* </para>
* </refsect2>
* <refsect2 id="UI-Merging">
* <title>UI Merging</title>
* <para>
* The most remarkable feature of #GtkUIManager is that it can overlay a set
* of menuitems and toolitems over another one, and demerge them later.
*
* Merging is done based on the names of the XML elements. Each element is
* identified by a path which consists of the names of its anchestors, separated
* by slashes. For example, the menuitem named "Left" in the example above
* has the path <literal>/ui/menubar/JustifyMenu/Left</literal> and the
* toolitem with the same name has path
* <literal>/ui/toolbar1/JustifyToolItems/Left</literal>.
* </para>
* </refsect2>
* <refsect2>
* <title>Accelerators</title>
* <para>
* Every action has an accelerator path. Accelerators are installed together with
* menuitem proxies, but they can also be explicitly added with &lt;accelerator&gt;
* elements in the UI definition. This makes it possible to have accelerators for
* actions even if they have no visible proxies.
* </para>
* </refsect2>
* <refsect2 id="Smart-Separators">
* <title>Smart Separators</title>
* <para>
* The separators created by #GtkUIManager are "smart", i.e. they do not show up
* in the UI unless they end up between two visible menu or tool items. Separators
* which are located at the very beginning or end of the menu or toolbar
* containing them, or multiple separators next to each other, are hidden. This
* is a useful feature, since the merging of UI elements from multiple sources
* can make it hard or impossible to determine in advance whether a separator
* will end up in such an unfortunate position.
*
* For separators in toolbars, you can set <literal>expand="true"</literal> to
* turn them from a small, visible separator to an expanding, invisible one.
* Toolitems following an expanding separator are effectively right-aligned.
* </para>
* </refsect2>
* <refsect2>
* <title>Empty Menus</title>
* <para>
* Submenus pose similar problems to separators inconnection with merging. It is
* impossible to know in advance whether they will end up empty after merging.
* #GtkUIManager offers two ways to treat empty submenus:
* <itemizedlist>
* <listitem>
* <para>make them disappear by hiding the menu item they're attached to</para>
* </listitem>
* <listitem>
* <para>add an insensitive "Empty" item</para>
* </listitem>
* </itemizedlist>
* The behaviour is chosen based on the "hide_if_empty" property of the action
* to which the submenu is associated.
* </para>
* </refsect2>
* <refsect2 id="GtkUIManager-BUILDER-UI">
* <title>GtkUIManager as GtkBuildable</title>
* <para>
* The GtkUIManager implementation of the GtkBuildable interface accepts
* GtkActionGroup objects as &lt;child&gt; elements in UI definitions.
*
* A GtkUIManager UI definition as described above can be embedded in
* an GtkUIManager &lt;object&gt; element in a GtkBuilder UI definition.
*
* The widgets that are constructed by a GtkUIManager can be embedded in
* other parts of the constructed user interface with the help of the
* "constructor" attribute. See the example below.
*
* <example>
* <title>An embedded GtkUIManager UI definition</title>
* <programlisting><![CDATA[
* <object class="GtkUIManager" id="uiman">
* <child>
* <object class="GtkActionGroup" id="actiongroup">
* <child>
* <object class="GtkAction" id="file">
* <property name="label">_File</property>
* </object>
* </child>
* </object>
* </child>
* <ui>
* <menubar name="menubar1">
* <menu action="file">
* </menu>
* </menubar>
* </ui>
* </object>
* <object class="GtkWindow" id="main-window">
* <child>
* <object class="GtkMenuBar" id="menubar1" constructor="uiman"/>
* </child>
* </object>
* ]]></programlisting>
* </example>
* </para>
* </refsect2>
*/
#undef DEBUG_UI_MANAGER
typedef enum
{
NODE_TYPE_UNDECIDED,
NODE_TYPE_ROOT,
NODE_TYPE_MENUBAR,
NODE_TYPE_MENU,
NODE_TYPE_TOOLBAR,
NODE_TYPE_MENU_PLACEHOLDER,
NODE_TYPE_TOOLBAR_PLACEHOLDER,
NODE_TYPE_POPUP,
NODE_TYPE_MENUITEM,
NODE_TYPE_TOOLITEM,
NODE_TYPE_SEPARATOR,
NODE_TYPE_ACCELERATOR
} NodeType;
typedef struct _Node Node;
struct _Node {
NodeType type;
gchar *name;
GQuark action_name;
GtkAction *action;
GtkWidget *proxy;
GtkWidget *extra; /* second separator for placeholders */
GList *uifiles;
guint dirty : 1;
guint expand : 1; /* used for separators */
guint popup_accels : 1;
guint always_show_image_set : 1; /* used for menu items */
guint always_show_image : 1; /* used for menu items */
};
struct _GtkUIManagerPrivate
{
GtkAccelGroup *accel_group;
GNode *root_node;
GList *action_groups;
guint last_merge_id;
guint update_tag;
gboolean add_tearoffs;
};
#define NODE_INFO(node) ((Node *)node->data)
typedef struct _NodeUIReference NodeUIReference;
struct _NodeUIReference
{
guint merge_id;
GQuark action_quark;
};
static void gtk_ui_manager_finalize (GObject *object);
static void gtk_ui_manager_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_ui_manager_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GtkWidget * gtk_ui_manager_real_get_widget (GtkUIManager *manager,
const gchar *path);
static GtkAction * gtk_ui_manager_real_get_action (GtkUIManager *manager,
const gchar *path);
static void queue_update (GtkUIManager *manager);
static void dirty_all_nodes (GtkUIManager *manager);
static void mark_node_dirty (GNode *node);
static GNode * get_child_node (GtkUIManager *manager,
GNode *parent,
GNode *sibling,
const gchar *childname,
gint childname_length,
NodeType node_type,
gboolean create,
gboolean top);
static GNode * get_node (GtkUIManager *manager,
const gchar *path,
NodeType node_type,
gboolean create);
static gboolean free_node (GNode *node);
static void node_prepend_ui_reference (GNode *node,
guint merge_id,
GQuark action_quark);
static void node_remove_ui_reference (GNode *node,
guint merge_id);
/* GtkBuildable */
static void gtk_ui_manager_buildable_init (GtkBuildableIface *iface);
static void gtk_ui_manager_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static GObject* gtk_ui_manager_buildable_construct_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *name);
static gboolean gtk_ui_manager_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_ui_manager_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data);
enum
{
ADD_WIDGET,
ACTIONS_CHANGED,
CONNECT_PROXY,
DISCONNECT_PROXY,
PRE_ACTIVATE,
POST_ACTIVATE,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_ADD_TEAROFFS,
PROP_UI
};
static guint ui_manager_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GtkUIManager, gtk_ui_manager, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_ui_manager_buildable_init))
static void
gtk_ui_manager_class_init (GtkUIManagerClass *klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gtk_ui_manager_finalize;
gobject_class->set_property = gtk_ui_manager_set_property;
gobject_class->get_property = gtk_ui_manager_get_property;
klass->get_widget = gtk_ui_manager_real_get_widget;
klass->get_action = gtk_ui_manager_real_get_action;
/**
* GtkUIManager:add-tearoffs:
*
* The "add-tearoffs" property controls whether generated menus
* have tearoff menu items.
*
* Note that this only affects regular menus. Generated popup
* menus never have tearoff menu items.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_ADD_TEAROFFS,
g_param_spec_boolean ("add-tearoffs",
P_("Add tearoffs to menus"),
P_("Whether tearoff menu items should be added to menus"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_UI,
g_param_spec_string ("ui",
P_("Merged UI definition"),
P_("An XML string describing the merged UI"),
"<ui>\n</ui>\n",
GTK_PARAM_READABLE));
/**
* GtkUIManager::add-widget:
* @manager: a #GtkUIManager
* @widget: the added widget
*
* The ::add-widget signal is emitted for each generated menubar and toolbar.
* It is not emitted for generated popup menus, which can be obtained by
* gtk_ui_manager_get_widget().
*
* Since: 2.4
*/
ui_manager_signals[ADD_WIDGET] =
g_signal_new (I_("add-widget"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, add_widget),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
/**
* GtkUIManager::actions-changed:
* @manager: a #GtkUIManager
*
* The ::actions-changed signal is emitted whenever the set of actions
* changes.
*
* Since: 2.4
*/
ui_manager_signals[ACTIONS_CHANGED] =
g_signal_new (I_("actions-changed"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, actions_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkUIManager::connect-proxy:
* @manager: the ui manager
* @action: the action
* @proxy: the proxy
*
* The ::connect-proxy signal is emitted after connecting a proxy to
* an action in the group.
*
* This is intended for simple customizations for which a custom action
* class would be too clumsy, e.g. showing tooltips for menuitems in the
* statusbar.
*
* Since: 2.4
*/
ui_manager_signals[CONNECT_PROXY] =
g_signal_new (I_("connect-proxy"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, connect_proxy),
NULL, NULL,
_gtk_marshal_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_ACTION,
GTK_TYPE_WIDGET);
/**
* GtkUIManager::disconnect-proxy:
* @manager: the ui manager
* @action: the action
* @proxy: the proxy
*
* The ::disconnect-proxy signal is emitted after disconnecting a proxy
* from an action in the group.
*
* Since: 2.4
*/
ui_manager_signals[DISCONNECT_PROXY] =
g_signal_new (I_("disconnect-proxy"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, disconnect_proxy),
NULL, NULL,
_gtk_marshal_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_ACTION,
GTK_TYPE_WIDGET);
/**
* GtkUIManager::pre-activate:
* @manager: the ui manager
* @action: the action
*
* The ::pre-activate signal is emitted just before the @action
* is activated.
*
* This is intended for applications to get notification
* just before any action is activated.
*
* Since: 2.4
*/
ui_manager_signals[PRE_ACTIVATE] =
g_signal_new (I_("pre-activate"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, pre_activate),
NULL, NULL,
_gtk_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GTK_TYPE_ACTION);
/**
* GtkUIManager::post-activate:
* @manager: the ui manager
* @action: the action
*
* The ::post-activate signal is emitted just after the @action
* is activated.
*
* This is intended for applications to get notification
* just after any action is activated.
*
* Since: 2.4
*/
ui_manager_signals[POST_ACTIVATE] =
g_signal_new (I_("post-activate"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkUIManagerClass, post_activate),
NULL, NULL,
_gtk_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GTK_TYPE_ACTION);
klass->add_widget = NULL;
klass->actions_changed = NULL;
klass->connect_proxy = NULL;
klass->disconnect_proxy = NULL;
klass->pre_activate = NULL;
klass->post_activate = NULL;
g_type_class_add_private (gobject_class, sizeof (GtkUIManagerPrivate));
}
static void
gtk_ui_manager_init (GtkUIManager *manager)
{
guint merge_id;
GNode *node;
manager->private_data = G_TYPE_INSTANCE_GET_PRIVATE (manager,
GTK_TYPE_UI_MANAGER,
GtkUIManagerPrivate);
manager->private_data->accel_group = gtk_accel_group_new ();
manager->private_data->root_node = NULL;
manager->private_data->action_groups = NULL;
manager->private_data->last_merge_id = 0;
manager->private_data->add_tearoffs = FALSE;
merge_id = gtk_ui_manager_new_merge_id (manager);
node = get_child_node (manager, NULL, NULL, "ui", 2,
NODE_TYPE_ROOT, TRUE, FALSE);
node_prepend_ui_reference (node, merge_id, 0);
}
static void
gtk_ui_manager_finalize (GObject *object)
{
GtkUIManager *manager = GTK_UI_MANAGER (object);
if (manager->private_data->update_tag != 0)
{
g_source_remove (manager->private_data->update_tag);
manager->private_data->update_tag = 0;
}
g_node_traverse (manager->private_data->root_node,
G_POST_ORDER, G_TRAVERSE_ALL, -1,
(GNodeTraverseFunc)free_node, NULL);
g_node_destroy (manager->private_data->root_node);
manager->private_data->root_node = NULL;
g_list_foreach (manager->private_data->action_groups,
(GFunc) g_object_unref, NULL);
g_list_free (manager->private_data->action_groups);
manager->private_data->action_groups = NULL;
g_object_unref (manager->private_data->accel_group);
manager->private_data->accel_group = NULL;
G_OBJECT_CLASS (gtk_ui_manager_parent_class)->finalize (object);
}
static void
gtk_ui_manager_buildable_init (GtkBuildableIface *iface)
{
iface->add_child = gtk_ui_manager_buildable_add_child;
iface->construct_child = gtk_ui_manager_buildable_construct_child;
iface->custom_tag_start = gtk_ui_manager_buildable_custom_tag_start;
iface->custom_tag_end = gtk_ui_manager_buildable_custom_tag_end;
}
static void
gtk_ui_manager_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
GtkUIManager *manager = GTK_UI_MANAGER (buildable);
guint pos;
g_return_if_fail (GTK_IS_ACTION_GROUP (child));
pos = g_list_length (manager->private_data->action_groups);
g_object_ref (child);
gtk_ui_manager_insert_action_group (manager,
GTK_ACTION_GROUP (child),
pos);
}
static void
child_hierarchy_changed_cb (GtkWidget *widget,
GtkWidget *unused,
GtkUIManager *uimgr)
{
GtkWidget *toplevel;
GtkAccelGroup *group;
GSList *groups;
toplevel = gtk_widget_get_toplevel (widget);
if (!toplevel || !GTK_IS_WINDOW (toplevel))
return;
group = gtk_ui_manager_get_accel_group (uimgr);
groups = gtk_accel_groups_from_object (G_OBJECT (toplevel));
if (g_slist_find (groups, group) == NULL)
gtk_window_add_accel_group (GTK_WINDOW (toplevel), group);
g_signal_handlers_disconnect_by_func (widget,
child_hierarchy_changed_cb,
uimgr);
}
static GObject *
gtk_ui_manager_buildable_construct_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *id)
{
GtkWidget *widget;
char *name;
name = g_strdup_printf ("ui/%s", id);
widget = gtk_ui_manager_get_widget (GTK_UI_MANAGER (buildable), name);
if (!widget)
{
g_error ("Unknown ui manager child: %s\n", name);
g_free (name);
return NULL;
}
g_free (name);
g_signal_connect (widget, "hierarchy-changed",
G_CALLBACK (child_hierarchy_changed_cb),
GTK_UI_MANAGER (buildable));
return g_object_ref (widget);
}
static void
gtk_ui_manager_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkUIManager *manager = GTK_UI_MANAGER (object);
switch (prop_id)
{
case PROP_ADD_TEAROFFS:
gtk_ui_manager_set_add_tearoffs (manager, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_ui_manager_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkUIManager *manager = GTK_UI_MANAGER (object);
switch (prop_id)
{
case PROP_ADD_TEAROFFS:
g_value_set_boolean (value, manager->private_data->add_tearoffs);
break;
case PROP_UI:
g_value_take_string (value, gtk_ui_manager_get_ui (manager));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GtkWidget *
gtk_ui_manager_real_get_widget (GtkUIManager *manager,
const gchar *path)
{
GNode *node;
/* ensure that there are no pending updates before we get the
* widget */
gtk_ui_manager_ensure_update (manager);
node = get_node (manager, path, NODE_TYPE_UNDECIDED, FALSE);
if (node == NULL)
return NULL;
return NODE_INFO (node)->proxy;
}
static GtkAction *
gtk_ui_manager_real_get_action (GtkUIManager *manager,
const gchar *path)
{
GNode *node;
/* ensure that there are no pending updates before we get
* the action */
gtk_ui_manager_ensure_update (manager);
node = get_node (manager, path, NODE_TYPE_UNDECIDED, FALSE);
if (node == NULL)
return NULL;
return NODE_INFO (node)->action;
}
/**
* gtk_ui_manager_new:
*
* Creates a new ui manager object.
*
* Return value: a new ui manager object.
*
* Since: 2.4
**/
GtkUIManager*
gtk_ui_manager_new (void)
{
return g_object_new (GTK_TYPE_UI_MANAGER, NULL);
}
/**
* gtk_ui_manager_get_add_tearoffs:
* @manager: a #GtkUIManager
*
* Returns whether menus generated by this #GtkUIManager
* will have tearoff menu items.
*
* Return value: whether tearoff menu items are added
*
* Since: 2.4
**/
gboolean
gtk_ui_manager_get_add_tearoffs (GtkUIManager *manager)
{
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), FALSE);
return manager->private_data->add_tearoffs;
}
/**
* gtk_ui_manager_set_add_tearoffs:
* @manager: a #GtkUIManager
* @add_tearoffs: whether tearoff menu items are added
*
* Sets the "add_tearoffs" property, which controls whether menus
* generated by this #GtkUIManager will have tearoff menu items.
*
* Note that this only affects regular menus. Generated popup
* menus never have tearoff menu items.
*
* Since: 2.4
**/
void
gtk_ui_manager_set_add_tearoffs (GtkUIManager *manager,
gboolean add_tearoffs)
{
g_return_if_fail (GTK_IS_UI_MANAGER (manager));
add_tearoffs = add_tearoffs != FALSE;
if (add_tearoffs != manager->private_data->add_tearoffs)
{
manager->private_data->add_tearoffs = add_tearoffs;
dirty_all_nodes (manager);
g_object_notify (G_OBJECT (manager), "add-tearoffs");
}
}
static void
cb_proxy_connect_proxy (GtkActionGroup *group,
GtkAction *action,
GtkWidget *proxy,
GtkUIManager *manager)
{
g_signal_emit (manager, ui_manager_signals[CONNECT_PROXY], 0, action, proxy);
}
static void
cb_proxy_disconnect_proxy (GtkActionGroup *group,
GtkAction *action,
GtkWidget *proxy,
GtkUIManager *manager)
{
g_signal_emit (manager, ui_manager_signals[DISCONNECT_PROXY], 0, action, proxy);
}
static void
cb_proxy_pre_activate (GtkActionGroup *group,
GtkAction *action,
GtkUIManager *manager)
{
g_signal_emit (manager, ui_manager_signals[PRE_ACTIVATE], 0, action);
}
static void
cb_proxy_post_activate (GtkActionGroup *group,
GtkAction *action,
GtkUIManager *manager)
{
g_signal_emit (manager, ui_manager_signals[POST_ACTIVATE], 0, action);
}
/**
* gtk_ui_manager_insert_action_group:
* @manager: a #GtkUIManager object
* @action_group: the action group to be inserted
* @pos: the position at which the group will be inserted.
*
* Inserts an action group into the list of action groups associated
* with @manager. Actions in earlier groups hide actions with the same
* name in later groups.
*
* Since: 2.4
**/
void
gtk_ui_manager_insert_action_group (GtkUIManager *manager,
GtkActionGroup *action_group,
gint pos)
{
#ifdef G_ENABLE_DEBUG
GList *l;
const char *group_name;
#endif
g_return_if_fail (GTK_IS_UI_MANAGER (manager));
g_return_if_fail (GTK_IS_ACTION_GROUP (action_group));
g_return_if_fail (g_list_find (manager->private_data->action_groups,
action_group) == NULL);
#ifdef G_ENABLE_DEBUG
group_name = gtk_action_group_get_name (action_group);
for (l = manager->private_data->action_groups; l; l = l->next)
{
GtkActionGroup *group = l->data;
if (strcmp (gtk_action_group_get_name (group), group_name) == 0)
{
g_warning ("Inserting action group '%s' into UI manager which "
"already has a group with this name\n", group_name);
break;
}
}
#endif /* G_ENABLE_DEBUG */
g_object_ref (action_group);
manager->private_data->action_groups =
g_list_insert (manager->private_data->action_groups, action_group, pos);
g_object_connect (action_group,
"object-signal::connect-proxy", G_CALLBACK (cb_proxy_connect_proxy), manager,
"object-signal::disconnect-proxy", G_CALLBACK (cb_proxy_disconnect_proxy), manager,
"object-signal::pre-activate", G_CALLBACK (cb_proxy_pre_activate), manager,
"object-signal::post-activate", G_CALLBACK (cb_proxy_post_activate), manager,
NULL);
/* dirty all nodes, as action bindings may change */
dirty_all_nodes (manager);
g_signal_emit (manager, ui_manager_signals[ACTIONS_CHANGED], 0);
}
/**
* gtk_ui_manager_remove_action_group:
* @manager: a #GtkUIManager object
* @action_group: the action group to be removed
*
* Removes an action group from the list of action groups associated
* with @manager.
*
* Since: 2.4
**/
void
gtk_ui_manager_remove_action_group (GtkUIManager *manager,
GtkActionGroup *action_group)
{
g_return_if_fail (GTK_IS_UI_MANAGER (manager));
g_return_if_fail (GTK_IS_ACTION_GROUP (action_group));
g_return_if_fail (g_list_find (manager->private_data->action_groups,
action_group) != NULL);
manager->private_data->action_groups =
g_list_remove (manager->private_data->action_groups, action_group);
g_object_disconnect (action_group,
"any-signal::connect-proxy", G_CALLBACK (cb_proxy_connect_proxy), manager,
"any-signal::disconnect-proxy", G_CALLBACK (cb_proxy_disconnect_proxy), manager,
"any-signal::pre-activate", G_CALLBACK (cb_proxy_pre_activate), manager,
"any-signal::post-activate", G_CALLBACK (cb_proxy_post_activate), manager,
NULL);
g_object_unref (action_group);
/* dirty all nodes, as action bindings may change */
dirty_all_nodes (manager);
g_signal_emit (manager, ui_manager_signals[ACTIONS_CHANGED], 0);
}
/**
* gtk_ui_manager_get_action_groups:
* @manager: a #GtkUIManager object
*
* Returns the list of action groups associated with @manager.
*
* Return value: (element-type GtkActionGroup) (transfer none): a #GList of
* action groups. The list is owned by GTK+
* and should not be modified.
*
* Since: 2.4
**/
GList *
gtk_ui_manager_get_action_groups (GtkUIManager *manager)
{
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), NULL);
return manager->private_data->action_groups;
}
/**
* gtk_ui_manager_get_accel_group:
* @manager: a #GtkUIManager object
*
* Returns the #GtkAccelGroup associated with @manager.
*
* Return value: (transfer none): the #GtkAccelGroup.
*
* Since: 2.4
**/
GtkAccelGroup *
gtk_ui_manager_get_accel_group (GtkUIManager *manager)
{
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), NULL);
return manager->private_data->accel_group;
}
/**
* gtk_ui_manager_get_widget:
* @manager: a #GtkUIManager
* @path: a path
*
* Looks up a widget by following a path.
* The path consists of the names specified in the XML description of the UI.
* separated by '/'. Elements which don't have a name or action attribute in
* the XML (e.g. &lt;popup&gt;) can be addressed by their XML element name
* (e.g. "popup"). The root element ("/ui") can be omitted in the path.
*
* Note that the widget found by following a path that ends in a &lt;menu&gt;
* element is the menuitem to which the menu is attached, not the menu itmanager.
*
* Also note that the widgets constructed by a ui manager are not tied to
* the lifecycle of the ui manager. If you add the widgets returned by this
* function to some container or explicitly ref them, they will survive the
* destruction of the ui manager.
*
* Return value: (transfer none): the widget found by following the path, or %NULL if no widget
* was found.
*
* Since: 2.4
**/
GtkWidget *
gtk_ui_manager_get_widget (GtkUIManager *manager,
const gchar *path)
{
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), NULL);
g_return_val_if_fail (path != NULL, NULL);
return GTK_UI_MANAGER_GET_CLASS (manager)->get_widget (manager, path);
}
typedef struct {
GtkUIManagerItemType types;
GSList *list;
} ToplevelData;
static void
collect_toplevels (GNode *node,
gpointer user_data)
{
ToplevelData *data = user_data;
if (NODE_INFO (node)->proxy)
{
switch (NODE_INFO (node)->type)
{
case NODE_TYPE_MENUBAR:
if (data->types & GTK_UI_MANAGER_MENUBAR)
data->list = g_slist_prepend (data->list, NODE_INFO (node)->proxy);
break;
case NODE_TYPE_TOOLBAR:
if (data->types & GTK_UI_MANAGER_TOOLBAR)
data->list = g_slist_prepend (data->list, NODE_INFO (node)->proxy);
break;
case NODE_TYPE_POPUP:
if (data->types & GTK_UI_MANAGER_POPUP)
data->list = g_slist_prepend (data->list, NODE_INFO (node)->proxy);
break;
default: ;
}
}
}
/**
* gtk_ui_manager_get_toplevels:
* @manager: a #GtkUIManager
* @types: specifies the types of toplevel widgets to include. Allowed
* types are #GTK_UI_MANAGER_MENUBAR, #GTK_UI_MANAGER_TOOLBAR and
* #GTK_UI_MANAGER_POPUP.
*
* Obtains a list of all toplevel widgets of the requested types.
*
* Return value: (element-type GtkWidget) (transfer container): a newly-allocated #GSList of
* all toplevel widgets of the requested types. Free the returned list with g_slist_free().
*
* Since: 2.4
**/
GSList *
gtk_ui_manager_get_toplevels (GtkUIManager *manager,
GtkUIManagerItemType types)
{
ToplevelData data;
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), NULL);
g_return_val_if_fail ((~(GTK_UI_MANAGER_MENUBAR |
GTK_UI_MANAGER_TOOLBAR |
GTK_UI_MANAGER_POPUP) & types) == 0, NULL);
data.types = types;
data.list = NULL;
g_node_children_foreach (manager->private_data->root_node,
G_TRAVERSE_ALL,
collect_toplevels, &data);
return data.list;
}
/**
* gtk_ui_manager_get_action:
* @manager: a #GtkUIManager
* @path: a path
*
* Looks up an action by following a path. See gtk_ui_manager_get_widget()
* for more information about paths.
*
* Return value: (transfer none): the action whose proxy widget is found by following the path,
* or %NULL if no widget was found.
*
* Since: 2.4
**/
GtkAction *
gtk_ui_manager_get_action (GtkUIManager *manager,
const gchar *path)
{
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), NULL);
g_return_val_if_fail (path != NULL, NULL);
return GTK_UI_MANAGER_GET_CLASS (manager)->get_action (manager, path);
}
static gboolean
node_is_dead (GNode *node)
{
GNode *child;
if (NODE_INFO (node)->uifiles != NULL)
return FALSE;
for (child = node->children; child != NULL; child = child->next)
{
if (!node_is_dead (child))
return FALSE;
}
return TRUE;
}
static GNode *
get_child_node (GtkUIManager *manager,
GNode *parent,
GNode *sibling,
const gchar *childname,
gint childname_length,
NodeType node_type,
gboolean create,
gboolean top)
{
GNode *child = NULL;
if (parent)
{
if (childname)
{
for (child = parent->children; child != NULL; child = child->next)
{
if (NODE_INFO (child)->name &&
strlen (NODE_INFO (child)->name) == childname_length &&
!strncmp (NODE_INFO (child)->name, childname, childname_length))
{
/* if undecided about node type, set it */
if (NODE_INFO (child)->type == NODE_TYPE_UNDECIDED)
NODE_INFO (child)->type = node_type;
/* warn about type mismatch */
if (NODE_INFO (child)->type != NODE_TYPE_UNDECIDED &&
node_type != NODE_TYPE_UNDECIDED &&
NODE_INFO (child)->type != node_type)
g_warning ("node type doesn't match %d (%s is type %d)",
node_type,
NODE_INFO (child)->name,
NODE_INFO (child)->type);
if (node_is_dead (child))
{
/* This node was removed but is still dirty so
* it is still in the tree. We want to treat this
* as if it didn't exist, which means we move it
* to the position it would have been created at.
*/
g_node_unlink (child);
goto insert_child;
}
return child;
}
}
}
if (!child && create)
{
Node *mnode;
mnode = g_slice_new0 (Node);
mnode->type = node_type;
mnode->name = g_strndup (childname, childname_length);
child = g_node_new (mnode);
insert_child:
if (sibling)
{
if (top)
g_node_insert_before (parent, sibling, child);
else
g_node_insert_after (parent, sibling, child);
}
else
{
if (top)
g_node_prepend (parent, child);
else
g_node_append (parent, child);
}
mark_node_dirty (child);
}
}
else
{
/* handle root node */
if (manager->private_data->root_node)
{
child = manager->private_data->root_node;
if (strncmp (NODE_INFO (child)->name, childname, childname_length) != 0)
g_warning ("root node name '%s' doesn't match '%s'",
childname, NODE_INFO (child)->name);
if (NODE_INFO (child)->type != NODE_TYPE_ROOT)
g_warning ("base element must be of type ROOT");
}
else if (create)
{
Node *mnode;
mnode = g_slice_new0 (Node);
mnode->type = node_type;
mnode->name = g_strndup (childname, childname_length);
mnode->dirty = TRUE;
child = manager->private_data->root_node = g_node_new (mnode);
}
}
return child;
}
static GNode *
get_node (GtkUIManager *manager,
const gchar *path,
NodeType node_type,
gboolean create)
{
const gchar *pos, *end;
GNode *parent, *node;
if (strncmp ("/ui", path, 3) == 0)
path += 3;
end = path + strlen (path);
pos = path;
parent = node = NULL;
while (pos < end)
{
const gchar *slash;
gsize length;
slash = strchr (pos, '/');
if (slash)
length = slash - pos;
else
length = strlen (pos);
node = get_child_node (manager, parent, NULL, pos, length, NODE_TYPE_UNDECIDED,
create, FALSE);
if (!node)
return NULL;
pos += length + 1; /* move past the node name and the slash too */
parent = node;
}
if (node != NULL && NODE_INFO (node)->type == NODE_TYPE_UNDECIDED)
NODE_INFO (node)->type = node_type;
return node;
}
static void
node_ui_reference_free (gpointer data)
{
g_slice_free (NodeUIReference, data);
}
static gboolean
free_node (GNode *node)
{
Node *info = NODE_INFO (node);
g_list_foreach (info->uifiles, (GFunc) node_ui_reference_free, NULL);
g_list_free (info->uifiles);
if (info->action)
g_object_unref (info->action);
if (info->proxy)
g_object_unref (info->proxy);
if (info->extra)
g_object_unref (info->extra);
g_free (info->name);
g_slice_free (Node, info);
return FALSE;
}
/**
* gtk_ui_manager_new_merge_id:
* @manager: a #GtkUIManager
*
* Returns an unused merge id, suitable for use with
* gtk_ui_manager_add_ui().
*
* Return value: an unused merge id.
*
* Since: 2.4
**/
guint
gtk_ui_manager_new_merge_id (GtkUIManager *manager)
{
manager->private_data->last_merge_id++;
return manager->private_data->last_merge_id;
}
static void
node_prepend_ui_reference (GNode *gnode,
guint merge_id,
GQuark action_quark)
{
Node *node = NODE_INFO (gnode);
NodeUIReference *reference = NULL;
if (node->uifiles &&
((NodeUIReference *)node->uifiles->data)->merge_id == merge_id)
reference = node->uifiles->data;
else
{
reference = g_slice_new (NodeUIReference);
node->uifiles = g_list_prepend (node->uifiles, reference);
}
reference->merge_id = merge_id;
reference->action_quark = action_quark;
mark_node_dirty (gnode);
}
static void
node_remove_ui_reference (GNode *gnode,
guint merge_id)
{
Node *node = NODE_INFO (gnode);
GList *p;
for (p = node->uifiles; p != NULL; p = p->next)
{
NodeUIReference *reference = p->data;
if (reference->merge_id == merge_id)
{
if (p == node->uifiles)
mark_node_dirty (gnode);
node->uifiles = g_list_delete_link (node->uifiles, p);
g_slice_free (NodeUIReference, reference);
break;
}
}
}
/* -------------------- The UI file parser -------------------- */
typedef enum
{
STATE_START,
STATE_ROOT,
STATE_MENU,
STATE_TOOLBAR,
STATE_MENUITEM,
STATE_TOOLITEM,
STATE_ACCELERATOR,
STATE_END
} ParseState;
typedef struct _ParseContext ParseContext;
struct _ParseContext
{
ParseState state;
ParseState prev_state;
GtkUIManager *manager;
GNode *current;
guint merge_id;
};
static void
start_element_handler (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
ParseContext *ctx = user_data;
GtkUIManager *manager = ctx->manager;
gint i;
const gchar *node_name;
const gchar *action;
GQuark action_quark;
gboolean top;
gboolean expand = FALSE;
gboolean accelerators = FALSE;
gboolean always_show_image_set = FALSE, always_show_image = FALSE;
gboolean raise_error = TRUE;
node_name = NULL;
action = NULL;
action_quark = 0;
top = FALSE;
for (i = 0; attribute_names[i] != NULL; i++)
{
if (!strcmp (attribute_names[i], "name"))
{
node_name = attribute_values[i];
}
else if (!strcmp (attribute_names[i], "action"))
{
action = attribute_values[i];
action_quark = g_quark_from_string (attribute_values[i]);
}
else if (!strcmp (attribute_names[i], "position"))
{
top = !strcmp (attribute_values[i], "top");
}
else if (!strcmp (attribute_names[i], "expand"))
{
expand = !strcmp (attribute_values[i], "true");
}
else if (!strcmp (attribute_names[i], "accelerators"))
{
accelerators = !strcmp (attribute_values[i], "true");
}
else if (!strcmp (attribute_names[i], "always-show-image"))
{
always_show_image_set = TRUE;
always_show_image = !strcmp (attribute_values[i], "true");
}
/* else silently skip unknown attributes to be compatible with
* future additional attributes.
*/
}
/* Work out a name for this node. Either the name attribute, or
* the action, or the element name */
if (node_name == NULL)
{
if (action != NULL)
node_name = action;
else
node_name = element_name;
}
switch (element_name[0])
{
case 'a':
if (ctx->state == STATE_ROOT && !strcmp (element_name, "accelerator"))
{
ctx->state = STATE_ACCELERATOR;
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_ACCELERATOR,
TRUE, FALSE);
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
break;
case 'u':
if (ctx->state == STATE_START && !strcmp (element_name, "ui"))
{
ctx->state = STATE_ROOT;
ctx->current = manager->private_data->root_node;
raise_error = FALSE;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
}
break;
case 'm':
if (ctx->state == STATE_ROOT && !strcmp (element_name, "menubar"))
{
ctx->state = STATE_MENU;
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_MENUBAR,
TRUE, FALSE);
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
mark_node_dirty (ctx->current);
raise_error = FALSE;
}
else if (ctx->state == STATE_MENU && !strcmp (element_name, "menu"))
{
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_MENU,
TRUE, top);
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
else if (ctx->state == STATE_TOOLITEM && !strcmp (element_name, "menu"))
{
ctx->state = STATE_MENU;
ctx->current = get_child_node (manager, g_node_last_child (ctx->current), NULL,
node_name, strlen (node_name),
NODE_TYPE_MENU,
TRUE, top);
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
else if (ctx->state == STATE_MENU && !strcmp (element_name, "menuitem"))
{
GNode *node;
ctx->state = STATE_MENUITEM;
node = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_MENUITEM,
TRUE, top);
if (NODE_INFO (node)->action_name == 0)
NODE_INFO (node)->action_name = action_quark;
NODE_INFO (node)->always_show_image_set = always_show_image_set;
NODE_INFO (node)->always_show_image = always_show_image;
node_prepend_ui_reference (node, ctx->merge_id, action_quark);
raise_error = FALSE;
}
break;
case 'p':
if (ctx->state == STATE_ROOT && !strcmp (element_name, "popup"))
{
ctx->state = STATE_MENU;
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_POPUP,
TRUE, FALSE);
NODE_INFO (ctx->current)->popup_accels = accelerators;
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
else if ((ctx->state == STATE_MENU || ctx->state == STATE_TOOLBAR) &&
!strcmp (element_name, "placeholder"))
{
if (ctx->state == STATE_TOOLBAR)
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_TOOLBAR_PLACEHOLDER,
TRUE, top);
else
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_MENU_PLACEHOLDER,
TRUE, top);
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
break;
case 's':
if ((ctx->state == STATE_MENU || ctx->state == STATE_TOOLBAR) &&
!strcmp (element_name, "separator"))
{
GNode *node;
gint length;
if (ctx->state == STATE_TOOLBAR)
ctx->state = STATE_TOOLITEM;
else
ctx->state = STATE_MENUITEM;
if (!strcmp (node_name, "separator"))
{
node_name = NULL;
length = 0;
}
else
length = strlen (node_name);
node = get_child_node (manager, ctx->current, NULL,
node_name, length,
NODE_TYPE_SEPARATOR,
TRUE, top);
NODE_INFO (node)->expand = expand;
if (NODE_INFO (node)->action_name == 0)
NODE_INFO (node)->action_name = action_quark;
node_prepend_ui_reference (node, ctx->merge_id, action_quark);
raise_error = FALSE;
}
break;
case 't':
if (ctx->state == STATE_ROOT && !strcmp (element_name, "toolbar"))
{
ctx->state = STATE_TOOLBAR;
ctx->current = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_TOOLBAR,
TRUE, FALSE);
if (NODE_INFO (ctx->current)->action_name == 0)
NODE_INFO (ctx->current)->action_name = action_quark;
node_prepend_ui_reference (ctx->current, ctx->merge_id, action_quark);
raise_error = FALSE;
}
else if (ctx->state == STATE_TOOLBAR && !strcmp (element_name, "toolitem"))
{
GNode *node;
ctx->state = STATE_TOOLITEM;
node = get_child_node (manager, ctx->current, NULL,
node_name, strlen (node_name),
NODE_TYPE_TOOLITEM,
TRUE, top);
if (NODE_INFO (node)->action_name == 0)
NODE_INFO (node)->action_name = action_quark;
node_prepend_ui_reference (node, ctx->merge_id, action_quark);
raise_error = FALSE;
}
break;
default:
break;
}
if (raise_error)
{
gint line_number, char_number;
g_markup_parse_context_get_position (context,
&line_number, &char_number);
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_UNKNOWN_ELEMENT,
_("Unexpected start tag '%s' on line %d char %d"),
element_name,
line_number, char_number);
}
}
static void
end_element_handler (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
ParseContext *ctx = user_data;
switch (ctx->state)
{
case STATE_START:
case STATE_END:
/* no need to GError here, GMarkup already catches this */
break;
case STATE_ROOT:
ctx->current = NULL;
ctx->state = STATE_END;
break;
case STATE_MENU:
case STATE_TOOLBAR:
case STATE_ACCELERATOR:
ctx->current = ctx->current->parent;
if (NODE_INFO (ctx->current)->type == NODE_TYPE_ROOT)
ctx->state = STATE_ROOT;
else if (NODE_INFO (ctx->current)->type == NODE_TYPE_TOOLITEM)
{
ctx->current = ctx->current->parent;
ctx->state = STATE_TOOLITEM;
}
/* else, stay in same state */
break;
case STATE_MENUITEM:
ctx->state = STATE_MENU;
break;
case STATE_TOOLITEM:
ctx->state = STATE_TOOLBAR;
break;
}
}
static void
cleanup (GMarkupParseContext *context,
GError *error,
gpointer user_data)
{
ParseContext *ctx = user_data;
ctx->current = NULL;
/* should also walk through the tree and get rid of nodes related to
* this UI file's tag */
gtk_ui_manager_remove_ui (ctx->manager, ctx->merge_id);
}
static gboolean
xml_isspace (char c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\r';
}
static void
text_handler (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
const gchar *p;
const gchar *end;
p = text;
end = text + text_len;
while (p != end && xml_isspace (*p))
++p;
if (p != end)
{
gint line_number, char_number;
g_markup_parse_context_get_position (context,
&line_number, &char_number);
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("Unexpected character data on line %d char %d"),
line_number, char_number);
}
}
static const GMarkupParser ui_parser = {
start_element_handler,
end_element_handler,
text_handler,
NULL,
cleanup
};
static guint
add_ui_from_string (GtkUIManager *manager,
const gchar *buffer,
gssize length,
gboolean needs_root,
GError **error)
{
ParseContext ctx = { 0 };
GMarkupParseContext *context;
ctx.state = STATE_START;
ctx.manager = manager;
ctx.current = NULL;
ctx.merge_id = gtk_ui_manager_new_merge_id (manager);
context = g_markup_parse_context_new (&ui_parser, 0, &ctx, NULL);
if (needs_root)
if (!g_markup_parse_context_parse (context, "<ui>", -1, error))
goto out;
if (!g_markup_parse_context_parse (context, buffer, length, error))
goto out;
if (needs_root)
if (!g_markup_parse_context_parse (context, "</ui>", -1, error))
goto out;
if (!g_markup_parse_context_end_parse (context, error))
goto out;
g_markup_parse_context_free (context);
queue_update (manager);
g_object_notify (G_OBJECT (manager), "ui");
return ctx.merge_id;
out:
g_markup_parse_context_free (context);
return 0;
}
/**
* gtk_ui_manager_add_ui_from_string:
* @manager: a #GtkUIManager object
* @buffer: the string to parse
* @length: the length of @buffer (may be -1 if @buffer is nul-terminated)
* @error: return location for an error
*
* Parses a string containing a <link linkend="XML-UI">UI definition</link> and
* merges it with the current contents of @manager. An enclosing &lt;ui&gt;
* element is added if it is missing.
*
* Return value: The merge id for the merged UI. The merge id can be used
* to unmerge the UI with gtk_ui_manager_remove_ui(). If an error occurred,
* the return value is 0.
*
* Since: 2.4
**/
guint
gtk_ui_manager_add_ui_from_string (GtkUIManager *manager,
const gchar *buffer,
gssize length,
GError **error)
{
gboolean needs_root = TRUE;
const gchar *p;
const gchar *end;
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), 0);
g_return_val_if_fail (buffer != NULL, 0);
if (length < 0)
length = strlen (buffer);
p = buffer;
end = buffer + length;
while (p != end && xml_isspace (*p))
++p;
if (end - p >= 4 && strncmp (p, "<ui>", 4) == 0)
needs_root = FALSE;
return add_ui_from_string (manager, buffer, length, needs_root, error);
}
/**
* gtk_ui_manager_add_ui_from_file:
* @manager: a #GtkUIManager object
* @filename: (type filename): the name of the file to parse
* @error: return location for an error
*
* Parses a file containing a <link linkend="XML-UI">UI definition</link> and
* merges it with the current contents of @manager.
*
* Return value: The merge id for the merged UI. The merge id can be used
* to unmerge the UI with gtk_ui_manager_remove_ui(). If an error occurred,
* the return value is 0.
*
* Since: 2.4
**/
guint
gtk_ui_manager_add_ui_from_file (GtkUIManager *manager,
const gchar *filename,
GError **error)
{
gchar *buffer;
gsize length;
guint res;
g_return_val_if_fail (GTK_IS_UI_MANAGER (manager), 0);
if (!g_file_get_contents (filename, &buffer, &length, error))
return 0;
res = add_ui_from_string (manager, buffer, length, FALSE, error);
g_free (buffer);
return res;
}
/**
* gtk_ui_manager_add_ui:
* @manager: a #GtkUIManager
* @merge_id: the merge id for the merged UI, see gtk_ui_manager_new_merge_id()
* @path: a path
* @name: the name for the added UI element
* @action: (allow-none): the name of the action to be proxied, or %NULL to add a separator
* @type: the type of UI element to add.
* @top: if %TRUE, the UI element is added before its siblings, otherwise it
* is added after its siblings.
*
* Adds a UI element to the current contents of @manager.
*
* If @type is %GTK_UI_MANAGER_AUTO, GTK+ inserts a menuitem, toolitem or
* separator if such an element can be inserted at the place determined by
* @path. Otherwise @type must indicate an element that can be inserted at
* the place determined by @path.
*
* If @path points to a menuitem or toolitem, the new element will be inserted
* before or after this item, depending on @top.
*
* Since: 2.4
**/
void
gtk_ui_manager_add_ui (GtkUIManager *manager,
guint merge_id,
const gchar *path,
const gchar *name,
const gchar *action,
GtkUIManagerItemType type,
gboolean top)
{
GNode *node;
GNode *sibling;
GNode *child;
NodeType node_type;
GQuark action_quark = 0;
g_return_if_fail (GTK_IS_UI_MANAGER (manager));
g_return_if_fail (merge_id > 0);
g_return_if_fail (name != NULL || type == GTK_UI_MANAGER_SEPARATOR);
node = get_node (manager, path, NODE_TYPE_UNDECIDED, FALSE);
sibling = NULL;
if (node == NULL)
return;
node_type = NODE_TYPE_UNDECIDED;
reswitch:
switch (NODE_INFO (node)->type)
{
case NODE_TYPE_SEPARATOR:
case NODE_TYPE_MENUITEM:
case NODE_TYPE_TOOLITEM:
sibling = node;
node = node->parent;
goto reswitch;
case NODE_TYPE_MENUBAR:
case NODE_TYPE_MENU:
case NODE_TYPE_POPUP:
case NODE_TYPE_MENU_PLACEHOLDER:
switch (type)
{
case GTK_UI_MANAGER_AUTO:
if (action != NULL)
node_type = NODE_TYPE_MENUITEM;
else
node_type = NODE_TYPE_SEPARATOR;
break;
case GTK_UI_MANAGER_MENU:
node_type = NODE_TYPE_MENU;
break;
case GTK_UI_MANAGER_MENUITEM:
node_type = NODE_TYPE_MENUITEM;
break;
case GTK_UI_MANAGER_SEPARATOR:
node_type = NODE_TYPE_SEPARATOR;
break;
case GTK_UI_MANAGER_PLACEHOLDER:
node_type = NODE_TYPE_MENU_PLACEHOLDER;
break;
default: ;
/* do nothing */
}
break;
case NODE_TYPE_TOOLBAR:
case NODE_TYPE_TOOLBAR_PLACEHOLDER:
switch (type)
{
case GTK_UI_MANAGER_AUTO:
if (action != NULL)
node_type = NODE_TYPE_TOOLITEM;
else
node_type = NODE_TYPE_SEPARATOR;
break;
case GTK_UI_MANAGER_TOOLITEM:
node_type = NODE_TYPE_TOOLITEM;
break;
case GTK_UI_MANAGER_SEPARATOR:
node_type = NODE_TYPE_SEPARATOR;
break;
case GTK_UI_MANAGER_PLACEHOLDER:
node_type = NODE_TYPE_TOOLBAR_PLACEHOLDER;
break;
default: ;
/* do nothing */
}
break;
case NODE_TYPE_ROOT:
switch (type)
{
case GTK_UI_MANAGER_MENUBAR:
node_type = NODE_TYPE_MENUBAR;
break;
case GTK_UI_MANAGER_TOOLBAR:
node_type = NODE_TYPE_TOOLBAR;
break;
case GTK_UI_MANAGER_POPUP:
case GTK_UI_MANAGER_POPUP_WITH_ACCELS:
node_type = NODE_TYPE_POPUP;
break;
case GTK_UI_MANAGER_ACCELERATOR:
node_type = NODE_TYPE_ACCELERATOR;
break;
default: ;
/* do nothing */
}
break;
default: ;
/* do nothing */
}
if (node_type == NODE_TYPE_UNDECIDED)
{
g_warning ("item type %d not suitable for adding at '%s'",
type, path);
return;
}
child = get_child_node (manager, node, sibling,
name, name ? strlen (name) : 0,
node_type, TRUE, top);
if (type == GTK_UI_MANAGER_POPUP_WITH_ACCELS)
NODE_INFO (child)->popup_accels = TRUE;
if (action != NULL)
action_quark = g_quark_from_string (action);
node_prepend_ui_reference (child, merge_id, action_quark);
if (NODE_INFO (child)->action_name == 0)
NODE_INFO (child)->action_name = action_quark;
queue_update (manager);
g_object_notify (G_OBJECT (manager), "ui");
}
static gboolean
remove_ui (GNode *node,
gpointer user_data)
{
guint merge_id = GPOINTER_TO_UINT (user_data);
node_remove_ui_reference (node, merge_id);
return FALSE; /* continue */
}
/**
* gtk_ui_manager_remove_ui:
* @manager: a #GtkUIManager object
* @merge_id: a merge id as returned by gtk_ui_manager_add_ui_from_string()
*
* Unmerges the part of @manager<!-- -->s content identified by @merge_id.
*
* Since: 2.4
**/
void
gtk_ui_manager_remove_ui (GtkUIManager *manager,
guint merge_id)
{
g_return_if_fail (GTK_IS_UI_MANAGER (manager));
g_node_traverse (manager->private_data->root_node,
G_POST_ORDER, G_TRAVERSE_ALL, -1,
remove_ui, GUINT_TO_POINTER (merge_id));
queue_update (manager);
g_object_notify (G_OBJECT (manager), "ui");
}
/* -------------------- Updates -------------------- */
static GtkAction *
get_action_by_name (GtkUIManager *merge,
const gchar *action_name)
{
GList *tmp;
if (!action_name)
return NULL;
/* lookup name */
for (tmp = merge->private_data->action_groups; tmp != NULL; tmp = tmp->next)
{
GtkActionGroup *action_group = tmp->data;
GtkAction *action;
action = gtk_action_group_get_action (action_group, action_name);
if (action)
return action;
}
return NULL;
}
static gboolean
find_menu_position (GNode *node,
GtkWidget **menushell_p,
gint *pos_p)
{
GtkWidget *menushell;
gint pos = 0;
g_return_val_if_fail (node != NULL, FALSE);
g_return_val_if_fail (NODE_INFO (node)->type == NODE_TYPE_MENU ||
NODE_INFO (node)->type == NODE_TYPE_POPUP ||
NODE_INFO (node)->type == NODE_TYPE_MENU_PLACEHOLDER ||
NODE_INFO (node)->type == NODE_TYPE_MENUITEM ||
NODE_INFO (node)->type == NODE_TYPE_SEPARATOR,
FALSE);
/* first sibling -- look at parent */
if (node->prev == NULL)
{
GNode *parent;
GList *siblings;
parent = node->parent;
switch (NODE_INFO (parent)->type)
{
case NODE_TYPE_MENUBAR:
case NODE_TYPE_POPUP:
menushell = NODE_INFO (parent)->proxy;
pos = 0;
break;
case NODE_TYPE_MENU:
menushell = NODE_INFO (parent)->proxy;
if (GTK_IS_MENU_ITEM (menushell))
menushell = gtk_menu_item_get_submenu (GTK_MENU_ITEM (menushell));
siblings = gtk_container_get_children (GTK_CONTAINER (menushell));
if (siblings != NULL && GTK_IS_TEAROFF_MENU_ITEM (siblings->data))
pos = 1;
else
pos = 0;
g_list_free (siblings);
break;
case NODE_TYPE_MENU_PLACEHOLDER:
menushell = gtk_widget_get_parent (NODE_INFO (parent)->proxy);
g_return_val_if_fail (GTK_IS_MENU_SHELL (menushell), FALSE);
pos = g_list_index (GTK_MENU_SHELL (menushell)->priv->children,
NODE_INFO (parent)->proxy) + 1;
break;
default:
g_warning ("%s: bad parent node type %d", G_STRLOC,
NODE_INFO (parent)->type);
return FALSE;
}
}
else
{
GtkWidget *prev_child;
GNode *sibling;
sibling = node->prev;
if (NODE_INFO (sibling)->type == NODE_TYPE_MENU_PLACEHOLDER)
prev_child = NODE_INFO (sibling)->extra; /* second Separator */
else
prev_child = NODE_INFO (sibling)->proxy;
if (!GTK_IS_WIDGET (prev_child))
return FALSE;
menushell = gtk_widget_get_parent (prev_child);
if (!GTK_IS_MENU_SHELL (menushell))
return FALSE;
pos = g_list_index (GTK_MENU_SHELL (menushell)->priv->children, prev_child) + 1;
}
if (menushell_p)
*menushell_p = menushell;
if (pos_p)
*pos_p = pos;
return TRUE;
}
static gboolean
find_toolbar_position (GNode *node,
GtkWidget **toolbar_p,
gint *pos_p)
{
GtkWidget *toolbar;
gint pos;
g_return_val_if_fail (node != NULL, FALSE);
g_return_val_if_fail (NODE_INFO (node)->type == NODE_TYPE_TOOLBAR ||
NODE_INFO (node)->type == NODE_TYPE_TOOLBAR_PLACEHOLDER ||
NODE_INFO (node)->type == NODE_TYPE_TOOLITEM ||
NODE_INFO (node)->type == NODE_TYPE_SEPARATOR,
FALSE);
/* first sibling -- look at parent */
if (node->prev == NULL)
{
GNode *parent;
parent = node->parent;
switch (NODE_INFO (parent)->type)
{
case NODE_TYPE_TOOLBAR:
toolbar = NODE_INFO (parent)->proxy;
pos = 0;
break;
case NODE_TYPE_TOOLBAR_PLACEHOLDER:
toolbar = gtk_widget_get_parent (NODE_INFO (parent)->proxy);
g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), FALSE);
pos = gtk_toolbar_get_item_index (GTK_TOOLBAR (toolbar),
GTK_TOOL_ITEM (NODE_INFO (parent)->proxy)) + 1;
break;
default:
g_warning ("%s: bad parent node type %d", G_STRLOC,
NODE_INFO (parent)->type);
return FALSE;
}
}
else
{
GtkWidget *prev_child;
GNode *sibling;
sibling = node->prev;
if (NODE_INFO (sibling)->type == NODE_TYPE_TOOLBAR_PLACEHOLDER)
prev_child = NODE_INFO (sibling)->extra; /* second Separator */
else
prev_child = NODE_INFO (sibling)->proxy;
if (!GTK_IS_WIDGET (prev_child))
return FALSE;
toolbar = gtk_widget_get_parent (prev_child);
if (!GTK_IS_TOOLBAR (toolbar))
return FALSE;
pos = gtk_toolbar_get_item_index (GTK_TOOLBAR (toolbar),
GTK_TOOL_ITEM (prev_child)) + 1;
}
if (toolbar_p)
*toolbar_p = toolbar;
if (pos_p)
*pos_p = pos;
return TRUE;
}
/**
* _gtk_menu_is_empty:
* @menu: (allow-none): a #GtkMenu or %NULL
*
* Determines whether @menu is empty. A menu is considered empty if it
* the only visible children are tearoff menu items or "filler" menu
* items which were inserted to mark the menu as empty.
*
* This function is used by #GtkAction.
*
* Return value: whether @menu is empty.
**/
gboolean
_gtk_menu_is_empty (GtkWidget *menu)
{
GList *children, *cur;
gboolean result = TRUE;
g_return_val_if_fail (menu == NULL || GTK_IS_MENU (menu), TRUE);
if (!menu)
return FALSE;
children = gtk_container_get_children (GTK_CONTAINER (menu));
cur = children;
while (cur)
{
if (gtk_widget_get_visible (cur->data))
{
if (!GTK_IS_TEAROFF_MENU_ITEM (cur->data) &&
!g_object_get_data (cur->data, "gtk-empty-menu-item"))
{
result = FALSE;
break;
}
}
cur = cur->next;
}
g_list_free (children);
return result;
}
enum {
SEPARATOR_MODE_SMART,
SEPARATOR_MODE_VISIBLE,
SEPARATOR_MODE_HIDDEN
};
static void
update_smart_separators (GtkWidget *proxy)
{
GtkWidget *parent = NULL;
if (GTK_IS_MENU (proxy) || GTK_IS_TOOLBAR (proxy))
parent = proxy;
else if (GTK_IS_MENU_ITEM (proxy) || GTK_IS_TOOL_ITEM (proxy))
parent = gtk_widget_get_parent (proxy);
if (parent)
{
gboolean visible;
gboolean empty;
GList *children, *cur, *last;
GtkWidget *filler;
children = gtk_container_get_children (GTK_CONTAINER (parent));
visible = FALSE;
last = NULL;
empty = TRUE;
filler = NULL;
cur = children;
while (cur)
{
if (g_object_get_data (cur->data, "gtk-empty-menu-item"))
{
filler = cur->data;
}
else if (GTK_IS_SEPARATOR_MENU_ITEM (cur->data) ||
GTK_IS_SEPARATOR_TOOL_ITEM (cur->data))
{
gint mode =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (cur->data),
"gtk-separator-mode"));
switch (mode)
{
case SEPARATOR_MODE_VISIBLE:
gtk_widget_show (GTK_WIDGET (cur->data));
last = NULL;
visible = FALSE;
break;
case SEPARATOR_MODE_HIDDEN:
gtk_widget_hide (GTK_WIDGET (cur->data));
break;
case SEPARATOR_MODE_SMART:
if (visible)
{
gtk_widget_show (GTK_WIDGET (cur->data));
last = cur;
visible = FALSE;
}
else
gtk_widget_hide (GTK_WIDGET (cur->data));
break;
}
}
else if (gtk_widget_get_visible (cur->data))
{
last = NULL;
if (GTK_IS_TEAROFF_MENU_ITEM (cur->data) || cur->data == filler)
visible = FALSE;
else
{
visible = TRUE;
empty = FALSE;
}
}
cur = cur->next;
}
if (last)
gtk_widget_hide (GTK_WIDGET (last->data));
if (GTK_IS_MENU (parent))
{
GtkWidget *item;
item = gtk_menu_get_attach_widget (GTK_MENU (parent));
if (GTK_IS_MENU_ITEM (item))
_gtk_action_sync_menu_visible (NULL, item, empty);
if (GTK_IS_WIDGET (filler))
{
if (empty)
gtk_widget_show (filler);
else
gtk_widget_hide (filler);
}
}
g_list_free (children);
}
}
static void
update_node (GtkUIManager *manager,
GNode *node,
gboolean in_popup,
gboolean popup_accels)
{
Node *info;
GNode *child;
GtkAction *action;
const gchar *action_name;
NodeUIReference *ref;
#ifdef DEBUG_UI_MANAGER
GList *tmp;
#endif
g_return_if_fail (node != NULL);
g_return_if_fail (NODE_INFO (node) != NULL);
info = NODE_INFO (node);
if (!info->dirty)
return;
if (info->type == NODE_TYPE_POPUP)
{
in_popup = TRUE;
popup_accels = info->popup_accels;
}
#ifdef DEBUG_UI_MANAGER
g_print ("update_node name=%s dirty=%d popup %d (",
info->name, info->dirty, in_popup);
for (tmp = info->uifiles; tmp != NULL; tmp = tmp->next)
{
NodeUIReference *ref = tmp->data;
g_print("%s:%u", g_quark_to_string (ref->action_quark), ref->merge_id);
if (tmp->next)
g_print (", ");
}
g_print (")\n");
#endif
if (info->uifiles == NULL) {
/* We may need to remove this node.
* This must be done in post order
*/
goto recurse_children;
}
ref = info->uifiles->data;
action_name = g_quark_to_string (ref->action_quark);
action = get_action_by_name (manager, action_name);
info->dirty = FALSE;
/* Check if the node doesn't have an action and must have an action */
if (action == NULL &&
info->type != NODE_TYPE_ROOT &&
info->type != NODE_TYPE_MENUBAR &&
info->type != NODE_TYPE_TOOLBAR &&
info->type != NODE_TYPE_POPUP &&
info->type != NODE_TYPE_SEPARATOR &&
info->type != NODE_TYPE_MENU_PLACEHOLDER &&
info->type != NODE_TYPE_TOOLBAR_PLACEHOLDER)
{
g_warning ("%s: missing action %s", info->name, action_name);
return;
}
if (action)
gtk_action_set_accel_group (action, manager->private_data->accel_group);
/* If the widget already has a proxy and the action hasn't changed, then
* we only have to update the tearoff menu items.
*/
if (info->proxy != NULL && action == info->action)
{
if (info->type == NODE_TYPE_MENU)
{
GtkWidget *menu;
GList *siblings;
if (GTK_IS_MENU (info->proxy))
menu = info->proxy;
else
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (info->proxy));
siblings = gtk_container_get_children (GTK_CONTAINER (menu));
if (siblings != NULL && GTK_IS_TEAROFF_MENU_ITEM (siblings->data))
{
if (manager->private_data->add_tearoffs && !in_popup)
gtk_widget_show (GTK_WIDGET (siblings->data));
else
gtk_widget_hide (GTK_WIDGET (siblings->data));
}
g_list_free (siblings);
}
goto recurse_children;
}
switch (info->type)
{
case NODE_TYPE_MENUBAR:
if (info->proxy == NULL)
{
info->proxy = gtk_menu_bar_new ();
g_object_ref_sink (info->proxy);
gtk_widget_set_name (info->proxy, info->name);
gtk_widget_show (info->proxy);
g_signal_emit (manager, ui_manager_signals[ADD_WIDGET], 0, info->proxy);
}
break;
case NODE_TYPE_POPUP:
if (info->proxy == NULL)
{
info->proxy = gtk_menu_new ();
g_object_ref_sink (info->proxy);
}
gtk_widget_set_name (info->proxy, info->name);
break;
case NODE_TYPE_MENU:
{
GtkWidget *prev_submenu = NULL;
GtkWidget *menu = NULL;
GList *siblings;
/* remove the proxy if it is of the wrong type ... */
if (info->proxy &&
G_OBJECT_TYPE (info->proxy) != GTK_ACTION_GET_CLASS (action)->menu_item_type)
{
if (GTK_IS_MENU_ITEM (info->proxy))
{
prev_submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (info->proxy));
if (prev_submenu)
{
g_object_ref (prev_submenu);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (info->proxy), NULL);
}
}
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), NULL);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
/* create proxy if needed ... */
if (info->proxy == NULL)
{
/* ... if the action already provides a menu, then use
* that menu instead of creating an empty one
*/
if ((NODE_INFO (node->parent)->type == NODE_TYPE_TOOLITEM ||
NODE_INFO (node->parent)->type == NODE_TYPE_MENUITEM) &&
GTK_ACTION_GET_CLASS (action)->create_menu)
{
menu = gtk_action_create_menu (action);
}
if (!menu)
{
GtkWidget *tearoff;
GtkWidget *filler;
menu = gtk_menu_new ();
gtk_widget_set_name (menu, info->name);
tearoff = gtk_tearoff_menu_item_new ();
gtk_widget_set_no_show_all (tearoff, TRUE);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), tearoff);
filler = gtk_menu_item_new_with_label (_("Empty"));
g_object_set_data (G_OBJECT (filler),
I_("gtk-empty-menu-item"),
GINT_TO_POINTER (TRUE));
gtk_widget_set_sensitive (filler, FALSE);
gtk_widget_set_no_show_all (filler, TRUE);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), filler);
}
if (NODE_INFO (node->parent)->type == NODE_TYPE_TOOLITEM)
{
info->proxy = menu;
g_object_ref_sink (info->proxy);
gtk_menu_tool_button_set_menu (GTK_MENU_TOOL_BUTTON (NODE_INFO (node->parent)->proxy),
menu);
}
else
{
GtkWidget *menushell;
gint pos;
if (find_menu_position (node, &menushell, &pos))
{
info->proxy = gtk_action_create_menu_item (action);
g_object_ref_sink (info->proxy);
g_signal_connect (info->proxy, "notify::visible",
G_CALLBACK (update_smart_separators), NULL);
gtk_widget_set_name (info->proxy, info->name);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (info->proxy), menu);
gtk_menu_shell_insert (GTK_MENU_SHELL (menushell), info->proxy, pos);
}
}
}
else
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), action);
if (prev_submenu)
{
gtk_menu_item_set_submenu (GTK_MENU_ITEM (info->proxy),
prev_submenu);
g_object_unref (prev_submenu);
}
if (GTK_IS_MENU (info->proxy))
menu = info->proxy;
else
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (info->proxy));
siblings = gtk_container_get_children (GTK_CONTAINER (menu));
if (siblings != NULL && GTK_IS_TEAROFF_MENU_ITEM (siblings->data))
{
if (manager->private_data->add_tearoffs && !in_popup)
gtk_widget_show (GTK_WIDGET (siblings->data));
else
gtk_widget_hide (GTK_WIDGET (siblings->data));
}
g_list_free (siblings);
}
break;
case NODE_TYPE_UNDECIDED:
g_warning ("found undecided node!");
break;
case NODE_TYPE_ROOT:
break;
case NODE_TYPE_TOOLBAR:
if (info->proxy == NULL)
{
info->proxy = gtk_toolbar_new ();
g_object_ref_sink (info->proxy);
gtk_widget_set_name (info->proxy, info->name);
gtk_widget_show (info->proxy);
g_signal_emit (manager, ui_manager_signals[ADD_WIDGET], 0, info->proxy);
}
break;
case NODE_TYPE_MENU_PLACEHOLDER:
/* create menu items for placeholders if necessary ... */
if (!GTK_IS_SEPARATOR_MENU_ITEM (info->proxy) ||
!GTK_IS_SEPARATOR_MENU_ITEM (info->extra))
{
if (info->proxy)
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
if (info->extra)
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->extra)),
info->extra);
g_object_unref (info->extra);
info->extra = NULL;
}
}
if (info->proxy == NULL)
{
GtkWidget *menushell;
gint pos;
if (find_menu_position (node, &menushell, &pos))
{
info->proxy = gtk_separator_menu_item_new ();
g_object_ref_sink (info->proxy);
g_object_set_data (G_OBJECT (info->proxy),
I_("gtk-separator-mode"),
GINT_TO_POINTER (SEPARATOR_MODE_HIDDEN));
gtk_widget_set_no_show_all (info->proxy, TRUE);
gtk_menu_shell_insert (GTK_MENU_SHELL (menushell),
NODE_INFO (node)->proxy, pos);
info->extra = gtk_separator_menu_item_new ();
g_object_ref_sink (info->extra);
g_object_set_data (G_OBJECT (info->extra),
I_("gtk-separator-mode"),
GINT_TO_POINTER (SEPARATOR_MODE_HIDDEN));
gtk_widget_set_no_show_all (info->extra, TRUE);
gtk_menu_shell_insert (GTK_MENU_SHELL (menushell),
NODE_INFO (node)->extra, pos + 1);
}
}
break;
case NODE_TYPE_TOOLBAR_PLACEHOLDER:
/* create toolbar items for placeholders if necessary ... */
if (!GTK_IS_SEPARATOR_TOOL_ITEM (info->proxy) ||
!GTK_IS_SEPARATOR_TOOL_ITEM (info->extra))
{
if (info->proxy)
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
if (info->extra)
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->extra)),
info->extra);
g_object_unref (info->extra);
info->extra = NULL;
}
}
if (info->proxy == NULL)
{
GtkWidget *toolbar;
gint pos;
GtkToolItem *item;
if (find_toolbar_position (node, &toolbar, &pos))
{
item = gtk_separator_tool_item_new ();
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, pos);
info->proxy = GTK_WIDGET (item);
g_object_ref_sink (info->proxy);
g_object_set_data (G_OBJECT (info->proxy),
I_("gtk-separator-mode"),
GINT_TO_POINTER (SEPARATOR_MODE_HIDDEN));
gtk_widget_set_no_show_all (info->proxy, TRUE);
item = gtk_separator_tool_item_new ();
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, pos+1);
info->extra = GTK_WIDGET (item);
g_object_ref_sink (info->extra);
g_object_set_data (G_OBJECT (info->extra),
I_("gtk-separator-mode"),
GINT_TO_POINTER (SEPARATOR_MODE_HIDDEN));
gtk_widget_set_no_show_all (info->extra, TRUE);
}
}
break;
case NODE_TYPE_MENUITEM:
/* remove the proxy if it is of the wrong type ... */
if (info->proxy &&
G_OBJECT_TYPE (info->proxy) != GTK_ACTION_GET_CLASS (action)->menu_item_type)
{
g_signal_handlers_disconnect_by_func (info->proxy,
G_CALLBACK (update_smart_separators),
NULL);
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), NULL);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
/* create proxy if needed ... */
if (info->proxy == NULL)
{
GtkWidget *menushell;
gint pos;
if (find_menu_position (node, &menushell, &pos))
{
info->proxy = gtk_action_create_menu_item (action);
g_object_ref_sink (info->proxy);
gtk_widget_set_name (info->proxy, info->name);
if (info->always_show_image_set &&
GTK_IS_IMAGE_MENU_ITEM (info->proxy))
gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (info->proxy),
info->always_show_image);
gtk_menu_shell_insert (GTK_MENU_SHELL (menushell),
info->proxy, pos);
}
}
else
{
g_signal_handlers_disconnect_by_func (info->proxy,
G_CALLBACK (update_smart_separators),
NULL);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (info->proxy), NULL);
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), action);
}
if (info->proxy)
{
g_signal_connect (info->proxy, "notify::visible",
G_CALLBACK (update_smart_separators), NULL);
if (in_popup && !popup_accels)
{
/* don't show accels in popups */
GtkWidget *child = gtk_bin_get_child (GTK_BIN (info->proxy));
if (GTK_IS_ACCEL_LABEL (child))
g_object_set (child, "accel-closure", NULL, NULL);
}
}
break;
case NODE_TYPE_TOOLITEM:
/* remove the proxy if it is of the wrong type ... */
if (info->proxy &&
G_OBJECT_TYPE (info->proxy) != GTK_ACTION_GET_CLASS (action)->toolbar_item_type)
{
g_signal_handlers_disconnect_by_func (info->proxy,
G_CALLBACK (update_smart_separators),
NULL);
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), NULL);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
/* create proxy if needed ... */
if (info->proxy == NULL)
{
GtkWidget *toolbar;
gint pos;
if (find_toolbar_position (node, &toolbar, &pos))
{
info->proxy = gtk_action_create_tool_item (action);
g_object_ref_sink (info->proxy);
gtk_widget_set_name (info->proxy, info->name);
gtk_toolbar_insert (GTK_TOOLBAR (toolbar),
GTK_TOOL_ITEM (info->proxy), pos);
}
}
else
{
g_signal_handlers_disconnect_by_func (info->proxy,
G_CALLBACK (update_smart_separators),
NULL);
gtk_activatable_set_related_action (GTK_ACTIVATABLE (info->proxy), action);
}
if (info->proxy)
{
g_signal_connect (info->proxy, "notify::visible",
G_CALLBACK (update_smart_separators), NULL);
}
break;
case NODE_TYPE_SEPARATOR:
if (NODE_INFO (node->parent)->type == NODE_TYPE_TOOLBAR ||
NODE_INFO (node->parent)->type == NODE_TYPE_TOOLBAR_PLACEHOLDER)
{
GtkWidget *toolbar;
gint pos;
gint separator_mode;
GtkToolItem *item;
if (GTK_IS_SEPARATOR_TOOL_ITEM (info->proxy))
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
if (find_toolbar_position (node, &toolbar, &pos))
{
item = gtk_separator_tool_item_new ();
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, pos);
info->proxy = GTK_WIDGET (item);
g_object_ref_sink (info->proxy);
gtk_widget_set_no_show_all (info->proxy, TRUE);
if (info->expand)
{
gtk_tool_item_set_expand (GTK_TOOL_ITEM (item), TRUE);
gtk_separator_tool_item_set_draw (GTK_SEPARATOR_TOOL_ITEM (item), FALSE);
separator_mode = SEPARATOR_MODE_VISIBLE;
}
else
separator_mode = SEPARATOR_MODE_SMART;
g_object_set_data (G_OBJECT (info->proxy),
I_("gtk-separator-mode"),
GINT_TO_POINTER (separator_mode));
gtk_widget_show (info->proxy);
}
}
else
{
GtkWidget *menushell;
gint pos;
if (GTK_IS_SEPARATOR_MENU_ITEM (info->proxy))
{
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (info->proxy)),
info->proxy);
g_object_unref (info->proxy);
info->proxy = NULL;
}
if (find_menu_position (node, &menushell, &pos))
{
info->proxy = gtk_separator_menu_item_new ();
g_object_ref_sink (info->proxy);
gtk_widget_set_no_show_all (info->proxy, TRUE);
g_object_set_data (G_OBJECT (info->proxy),
I_("gtk-separator-mode"),
GINT_TO_POINTER (SEPARATOR_MODE_SMART));
gtk_menu_shell_insert (GTK_MENU_SHELL (menushell),
info->proxy, pos);
gtk_widget_show (info->proxy);
}
}
break;
case NODE_TYPE_ACCELERATOR:
gtk_action_connect_accelerator (action);
break;
}
if (action)
g_object_ref (action);
if (info->action)
g_object_unref (info->action);
info->action = action;
recurse_children:
/* process children */
child = node->children;
while (child)
{
GNode *current;
current = child;
child = current->next;
update_node (manager, current, in_popup, popup_accels);
}
if (info->proxy)
{
if (info->type == NODE_TYPE_MENU && GTK_IS_MENU_ITEM (info->proxy))
update_smart_separators (gtk_menu_item_get_submenu (GTK_MENU_ITEM (info->proxy)));
else if (info->type == NODE_TYPE_MENU ||
info->type == NODE_TYPE_TOOLBAR ||
info->type == NODE_TYPE_POPUP)
update_smart_separators (info->proxy);
}
/* handle cleanup of dead nodes */
if (node->children == NULL && info->uifiles == NULL)
{
if (info->proxy)
gtk_widget_destroy (info->proxy);
if (info->extra)
gtk_widget_destroy (info->extra);
if (info->type == NODE_TYPE_ACCELERATOR && info->action != NULL)
gtk_action_disconnect_accelerator (info->action);
free_node (node);
g_node_destroy (node);
}
}
static gboolean
do_updates (GtkUIManager *manager)
{
/* this function needs to check through the tree for dirty nodes.
* For such nodes, it needs to do the following:
*
* 1) check if they are referenced by any loaded UI files anymore.
* In which case, the proxy widget should be destroyed, unless
* there are any subnodes.
*
* 2) lookup the action for this node again. If it is different to
* the current one (or if no previous action has been looked up),
* the proxy is reconnected to the new action (or a new proxy widget
* is created and added to the parent container).
*/
update_node (manager, manager->private_data->root_node, FALSE, FALSE);
manager->private_data->update_tag = 0;
return FALSE;
}
static gboolean
do_updates_idle (GtkUIManager *manager)
{
do_updates (manager);
return FALSE;
}
static void
queue_update (GtkUIManager *manager)
{
if (manager->private_data->update_tag != 0)
return;
manager->private_data->update_tag = gdk_threads_add_idle (
(GSourceFunc)do_updates_idle,
manager);
}
/**
* gtk_ui_manager_ensure_update:
* @manager: a #GtkUIManager
*
* Makes sure that all pending updates to the UI have been completed.
*
* This may occasionally be necessary, since #GtkUIManager updates the
* UI in an idle function. A typical example where this function is
* useful is to enforce that the menubar and toolbar have been added to
* the main window before showing it:
* |[
* gtk_container_add (GTK_CONTAINER (window), vbox);
* g_signal_connect (merge, "add-widget",
* G_CALLBACK (add_widget), vbox);
* gtk_ui_manager_add_ui_from_file (merge, "my-menus");
* gtk_ui_manager_add_ui_from_file (merge, "my-toolbars");
* gtk_ui_manager_ensure_update (merge);
* gtk_widget_show (window);
* ]|
*
* Since: 2.4
**/
void
gtk_ui_manager_ensure_update (GtkUIManager *manager)
{
if (manager->private_data->update_tag != 0)
{
g_source_remove (manager->private_data->update_tag);
do_updates (manager);
}
}
static gboolean
dirty_traverse_func (GNode *node,
gpointer data)
{
NODE_INFO (node)->dirty = TRUE;
return FALSE;
}
static void
dirty_all_nodes (GtkUIManager *manager)
{
g_node_traverse (manager->private_data->root_node,
G_PRE_ORDER, G_TRAVERSE_ALL, -1,
dirty_traverse_func, NULL);
queue_update (manager);
}
static void
mark_node_dirty (GNode *node)
{
GNode *p;
/* FIXME could optimize this */
for (p = node; p; p = p->parent)
NODE_INFO (p)->dirty = TRUE;
}
static const gchar *
open_tag_format (NodeType type)
{
switch (type)
{
case NODE_TYPE_UNDECIDED: return "%*s<UNDECIDED";
case NODE_TYPE_ROOT: return "%*s<ui";
case NODE_TYPE_MENUBAR: return "%*s<menubar";
case NODE_TYPE_MENU: return "%*s<menu";
case NODE_TYPE_TOOLBAR: return "%*s<toolbar";
case NODE_TYPE_MENU_PLACEHOLDER:
case NODE_TYPE_TOOLBAR_PLACEHOLDER: return "%*s<placeholder";
case NODE_TYPE_POPUP: return "%*s<popup";
case NODE_TYPE_MENUITEM: return "%*s<menuitem";
case NODE_TYPE_TOOLITEM: return "%*s<toolitem";
case NODE_TYPE_SEPARATOR: return "%*s<separator";
case NODE_TYPE_ACCELERATOR: return "%*s<accelerator";
default: return NULL;
}
}
static const gchar *
close_tag_format (NodeType type)
{
switch (type)
{
case NODE_TYPE_UNDECIDED: return "%*s</UNDECIDED>\n";
case NODE_TYPE_ROOT: return "%*s</ui>\n";
case NODE_TYPE_MENUBAR: return "%*s</menubar>\n";
case NODE_TYPE_MENU: return "%*s</menu>\n";
case NODE_TYPE_TOOLBAR: return "%*s</toolbar>\n";
case NODE_TYPE_MENU_PLACEHOLDER:
case NODE_TYPE_TOOLBAR_PLACEHOLDER: return "%*s</placeholder>\n";
case NODE_TYPE_POPUP: return "%*s</popup>\n";
default: return NULL;
}
}
static void
print_node (GtkUIManager *manager,
GNode *node,
gint indent_level,
GString *buffer)
{
Node *mnode;
GNode *child;
const gchar *open_fmt;
const gchar *close_fmt;
mnode = node->data;
open_fmt = open_tag_format (mnode->type);
close_fmt = close_tag_format (mnode->type);
g_string_append_printf (buffer, open_fmt, indent_level, "");
if (mnode->type != NODE_TYPE_ROOT)
{
if (mnode->name)
g_string_append_printf (buffer, " name=\"%s\"", mnode->name);
if (mnode->action_name)
g_string_append_printf (buffer, " action=\"%s\"",
g_quark_to_string (mnode->action_name));
}
g_string_append (buffer, close_fmt ? ">\n" : "/>\n");
for (child = node->children; child != NULL; child = child->next)
print_node (manager, child, indent_level + 2, buffer);
if (close_fmt)
g_string_append_printf (buffer, close_fmt, indent_level, "");
}
static gboolean
gtk_ui_manager_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
if (child)
return FALSE;
if (strcmp (tagname, "ui") == 0)
{
ParseContext *ctx;
ctx = g_new0 (ParseContext, 1);
ctx->state = STATE_START;
ctx->manager = GTK_UI_MANAGER (buildable);
ctx->current = NULL;
ctx->merge_id = gtk_ui_manager_new_merge_id (GTK_UI_MANAGER (buildable));
*data = ctx;
*parser = ui_parser;
return TRUE;
}
return FALSE;
}
static void
gtk_ui_manager_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
queue_update (GTK_UI_MANAGER (buildable));
g_object_notify (G_OBJECT (buildable), "ui");
g_free (data);
}
/**
* gtk_ui_manager_get_ui:
* @manager: a #GtkUIManager
*
* Creates a <link linkend="XML-UI">UI definition</link> of the merged UI.
*
* Return value: A newly allocated string containing an XML representation of
* the merged UI.
*
* Since: 2.4
**/
gchar *
gtk_ui_manager_get_ui (GtkUIManager *manager)
{
GString *buffer;
buffer = g_string_new (NULL);
gtk_ui_manager_ensure_update (manager);
print_node (manager, manager->private_data->root_node, 0, buffer);
return g_string_free (buffer, FALSE);
}
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