mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-09 19:06:15 +01:00
Add GMenuModel D-Bus exporter
This commit is contained in:
Matthias Clasen
Ryan Lortie
parent
6b40d4eb6b
commit
66e089f086
@ -203,6 +203,7 @@
|
||||
<xi:include href="xml/gmenumodel.xml"/>
|
||||
<xi:include href="xml/gmenu.xml"/>
|
||||
<xi:include href="xml/gmenumarkup.xml"/>
|
||||
<xi:include href="xml/gmenuexporter.xml"/>
|
||||
</chapter>
|
||||
<chapter id="extending">
|
||||
<title>Extending GIO</title>
|
||||
|
||||
@ -3541,6 +3541,13 @@ G_IS_NETWORK_MONITOR
|
||||
G_NETWORK_MONITOR_GET_INTERFACE
|
||||
</SECTION>
|
||||
|
||||
<SECTION>
|
||||
<FILE>gmenuexporter</FILE>
|
||||
g_menu_exporter_export
|
||||
g_menu_exporter_stop
|
||||
g_menu_exporter_query
|
||||
</SECTION>
|
||||
|
||||
<SECTION>
|
||||
<FILE>gmenu</FILE>
|
||||
GMenu
|
||||
|
||||
@ -136,6 +136,7 @@ application_headers = \
|
||||
gmenumodel.h \
|
||||
gmenu.h \
|
||||
gmenumarkup.h \
|
||||
gmenuexporter.h \
|
||||
$(NULL)
|
||||
|
||||
application_sources = \
|
||||
@ -152,6 +153,7 @@ application_sources = \
|
||||
gmenumodel.c \
|
||||
gmenu.c \
|
||||
gmenumarkup.c \
|
||||
gmenuexporter.c \
|
||||
$(NULL)
|
||||
|
||||
local_sources = \
|
||||
|
||||
@ -148,6 +148,7 @@
|
||||
#include <gio/gdbusactiongroup.h>
|
||||
#include <gio/gmenumodel.h>
|
||||
#include <gio/gmenu.h>
|
||||
#include <gio/gmenuexporter.h>
|
||||
#include <gio/gmenumarkup.h>
|
||||
|
||||
#undef __GIO_GIO_H_INSIDE__
|
||||
|
||||
@ -1613,6 +1613,9 @@ g_menu_attribute_iter_get_next
|
||||
g_menu_attribute_iter_get_type
|
||||
g_menu_attribute_iter_get_value
|
||||
g_menu_attribute_iter_next
|
||||
g_menu_exporter_export
|
||||
g_menu_exporter_query
|
||||
g_menu_exporter_stop
|
||||
g_menu_freeze
|
||||
g_menu_get_type
|
||||
g_menu_insert
|
||||
|
||||
884
gio/gmenuexporter.c
Normal file
884
gio/gmenuexporter.c
Normal file
@ -0,0 +1,884 @@
|
||||
/*
|
||||
* Copyright © 2011 Canonical Ltd.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of the
|
||||
* licence, 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
||||
* USA.
|
||||
*
|
||||
* Author: Ryan Lortie <desrt@desrt.ca>
|
||||
*/
|
||||
|
||||
#include "gmenuexporter.h"
|
||||
|
||||
#include "gdbusmethodinvocation.h"
|
||||
#include "gdbusintrospection.h"
|
||||
#include "gdbusnamewatching.h"
|
||||
#include "gdbuserror.h"
|
||||
|
||||
/**
|
||||
* SECTION:gmenuexporter
|
||||
* @title: GMenuModel exporter
|
||||
* @short_description: Export GMenuModels on D-Bus
|
||||
* @see_also: #GMenuModel, #GMenuProxy
|
||||
*
|
||||
* These functions support exporting a #GMenuModel on D-Bus.
|
||||
* The D-Bus interface that is used is a private implementation
|
||||
* detail.
|
||||
*
|
||||
* To access an exported #GMenuModel remotely, use
|
||||
* g_menu_proxy_get() to obtain a #GMenuProxy.
|
||||
*/
|
||||
|
||||
/* {{{1 D-Bus Interface description */
|
||||
static GDBusInterfaceInfo *
|
||||
org_gtk_Menus_get_interface (void)
|
||||
{
|
||||
static GDBusInterfaceInfo *interface_info;
|
||||
|
||||
if (interface_info == NULL)
|
||||
{
|
||||
GError *error = NULL;
|
||||
GDBusNodeInfo *info;
|
||||
|
||||
info = g_dbus_node_info_new_for_xml ("<node>"
|
||||
" <interface name='org.gtk.Menus'>"
|
||||
" <method name='Start'>"
|
||||
" <arg type='au' name='groups' direction='in'/>"
|
||||
" <arg type='a(uuaa{sv})' name='content' direction='out'/>"
|
||||
" </method>"
|
||||
" <method name='End'>"
|
||||
" <arg type='au' name='groups' direction='in'/>"
|
||||
" </method>"
|
||||
" <signal name='Changed'>"
|
||||
" arg type='a(uuuuaa{sv})' name='changes'/>"
|
||||
" </signal>"
|
||||
" </interface>"
|
||||
"</node>", &error);
|
||||
if (info == NULL)
|
||||
g_error ("%s\n", error->message);
|
||||
interface_info = g_dbus_node_info_lookup_interface (info, "org.gtk.Menus");
|
||||
g_assert (interface_info != NULL);
|
||||
g_dbus_interface_info_ref (interface_info);
|
||||
g_dbus_node_info_unref (info);
|
||||
}
|
||||
|
||||
return interface_info;
|
||||
}
|
||||
|
||||
/* {{{1 Forward declarations */
|
||||
typedef struct _GMenuExporterMenu GMenuExporterMenu;
|
||||
typedef struct _GMenuExporterLink GMenuExporterLink;
|
||||
typedef struct _GMenuExporterGroup GMenuExporterGroup;
|
||||
typedef struct _GMenuExporterRemote GMenuExporterRemote;
|
||||
typedef struct _GMenuExporterWatch GMenuExporterWatch;
|
||||
typedef struct _GMenuExporter GMenuExporter;
|
||||
|
||||
static gboolean g_menu_exporter_group_is_subscribed (GMenuExporterGroup *group);
|
||||
static guint g_menu_exporter_group_get_id (GMenuExporterGroup *group);
|
||||
static GMenuExporter * g_menu_exporter_group_get_exporter (GMenuExporterGroup *group);
|
||||
static GMenuExporterMenu * g_menu_exporter_group_add_menu (GMenuExporterGroup *group,
|
||||
GMenuModel *model);
|
||||
static void g_menu_exporter_group_remove_menu (GMenuExporterGroup *group,
|
||||
guint id);
|
||||
|
||||
static GMenuExporterGroup * g_menu_exporter_create_group (GMenuExporter *exporter);
|
||||
static GMenuExporterGroup * g_menu_exporter_lookup_group (GMenuExporter *exporter,
|
||||
guint group_id);
|
||||
static void g_menu_exporter_report (GMenuExporter *exporter,
|
||||
GVariant *report);
|
||||
static void g_menu_exporter_remove_group (GMenuExporter *exporter,
|
||||
guint id);
|
||||
|
||||
/* {{{1 GMenuExporterLink, GMenuExporterMenu */
|
||||
|
||||
struct _GMenuExporterMenu
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
guint id;
|
||||
|
||||
GMenuModel *model;
|
||||
gulong handler_id;
|
||||
GSequence *item_links;
|
||||
};
|
||||
|
||||
struct _GMenuExporterLink
|
||||
{
|
||||
gchar *name;
|
||||
GMenuExporterMenu *menu;
|
||||
GMenuExporterLink *next;
|
||||
};
|
||||
|
||||
static void
|
||||
g_menu_exporter_menu_free (GMenuExporterMenu *menu)
|
||||
{
|
||||
g_menu_exporter_group_remove_menu (menu->group, menu->id);
|
||||
|
||||
if (menu->handler_id != 0)
|
||||
g_signal_handler_disconnect (menu->model, menu->handler_id);
|
||||
|
||||
if (menu->item_links != NULL)
|
||||
g_sequence_free (menu->item_links);
|
||||
|
||||
g_object_unref (menu->model);
|
||||
|
||||
g_slice_free (GMenuExporterMenu, menu);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_link_free (gpointer data)
|
||||
{
|
||||
GMenuExporterLink *link = data;
|
||||
|
||||
while (link != NULL)
|
||||
{
|
||||
GMenuExporterLink *tmp = link;
|
||||
link = tmp->next;
|
||||
|
||||
g_menu_exporter_menu_free (tmp->menu);
|
||||
g_free (tmp->name);
|
||||
|
||||
g_slice_free (GMenuExporterLink, tmp);
|
||||
}
|
||||
}
|
||||
|
||||
static GMenuExporterLink *
|
||||
g_menu_exporter_menu_create_links (GMenuExporterMenu *menu,
|
||||
gint position)
|
||||
{
|
||||
GMenuExporterLink *list = NULL;
|
||||
GMenuLinkIter *iter;
|
||||
const char *name;
|
||||
GMenuModel *model;
|
||||
|
||||
iter = g_menu_model_iterate_item_links (menu->model, position);
|
||||
|
||||
while (g_menu_link_iter_get_next (iter, &name, &model))
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
GMenuExporterLink *tmp;
|
||||
|
||||
if (0) /* [magic] */
|
||||
group = g_menu_exporter_create_group (g_menu_exporter_group_get_exporter (menu->group));
|
||||
else
|
||||
group = menu->group;
|
||||
|
||||
tmp = g_slice_new (GMenuExporterLink);
|
||||
tmp->name = g_strconcat (":", name, NULL);
|
||||
tmp->menu = g_menu_exporter_group_add_menu (group, model);
|
||||
tmp->next = list;
|
||||
list = tmp;
|
||||
|
||||
g_object_unref (model);
|
||||
}
|
||||
|
||||
g_object_unref (iter);
|
||||
|
||||
return list;
|
||||
}
|
||||
|
||||
static GVariant *
|
||||
g_menu_exporter_menu_describe_item (GMenuExporterMenu *menu,
|
||||
gint position)
|
||||
{
|
||||
GMenuAttributeIter *attr_iter;
|
||||
GVariantBuilder builder;
|
||||
GSequenceIter *iter;
|
||||
GMenuExporterLink *link;
|
||||
const char *name;
|
||||
GVariant *value;
|
||||
|
||||
g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
|
||||
|
||||
attr_iter = g_menu_model_iterate_item_attributes (menu->model, position);
|
||||
while (g_menu_attribute_iter_get_next (attr_iter, &name, &value))
|
||||
{
|
||||
g_variant_builder_add (&builder, "{sv}", name, value);
|
||||
g_variant_unref (value);
|
||||
}
|
||||
g_object_unref (attr_iter);
|
||||
|
||||
iter = g_sequence_get_iter_at_pos (menu->item_links, position);
|
||||
for (link = g_sequence_get (iter); link; link = link->next)
|
||||
g_variant_builder_add (&builder, "{sv}", link->name,
|
||||
g_variant_new ("(uu)", g_menu_exporter_group_get_id (link->menu->group), link->menu->id));
|
||||
|
||||
return g_variant_builder_end (&builder);
|
||||
}
|
||||
|
||||
static GVariant *
|
||||
g_menu_exporter_menu_list (GMenuExporterMenu *menu)
|
||||
{
|
||||
GVariantBuilder builder;
|
||||
gint i, n;
|
||||
|
||||
g_variant_builder_init (&builder, G_VARIANT_TYPE ("aa{sv}"));
|
||||
|
||||
n = g_sequence_get_length (menu->item_links);
|
||||
for (i = 0; i < n; i++)
|
||||
g_variant_builder_add_value (&builder, g_menu_exporter_menu_describe_item (menu, i));
|
||||
|
||||
return g_variant_builder_end (&builder);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_menu_items_changed (GMenuModel *model,
|
||||
gint position,
|
||||
gint removed,
|
||||
gint added,
|
||||
gpointer user_data)
|
||||
{
|
||||
GMenuExporterMenu *menu = user_data;
|
||||
GSequenceIter *point;
|
||||
gint i;
|
||||
|
||||
g_assert (menu->model == model);
|
||||
g_assert (menu->item_links != NULL);
|
||||
g_assert (position + removed <= g_sequence_get_length (menu->item_links));
|
||||
|
||||
point = g_sequence_get_iter_at_pos (menu->item_links, position + removed);
|
||||
g_sequence_remove_range (g_sequence_get_iter_at_pos (menu->item_links, position), point);
|
||||
|
||||
for (i = position; i < position + added; i++)
|
||||
g_sequence_insert_before (point, g_menu_exporter_menu_create_links (menu, i));
|
||||
|
||||
if (g_menu_exporter_group_is_subscribed (menu->group))
|
||||
{
|
||||
GVariantBuilder builder;
|
||||
|
||||
g_variant_builder_init (&builder, G_VARIANT_TYPE ("(uuuuaa{sv})"));
|
||||
g_variant_builder_add (&builder, "u", g_menu_exporter_group_get_id (menu->group));
|
||||
g_variant_builder_add (&builder, "u", menu->id);
|
||||
g_variant_builder_add (&builder, "u", position);
|
||||
g_variant_builder_add (&builder, "u", removed);
|
||||
|
||||
g_variant_builder_open (&builder, G_VARIANT_TYPE ("aa{sv}"));
|
||||
for (i = position; i < position + added; i++)
|
||||
g_variant_builder_add_value (&builder, g_menu_exporter_menu_describe_item (menu, i));
|
||||
g_variant_builder_close (&builder);
|
||||
|
||||
g_menu_exporter_report (g_menu_exporter_group_get_exporter (menu->group), g_variant_builder_end (&builder));
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_menu_prepare (GMenuExporterMenu *menu)
|
||||
{
|
||||
gint n_items;
|
||||
|
||||
g_assert (menu->item_links == NULL);
|
||||
|
||||
if (g_menu_model_is_mutable (menu->model))
|
||||
menu->handler_id = g_signal_connect (menu->model, "items-changed",
|
||||
G_CALLBACK (g_menu_exporter_menu_items_changed), menu);
|
||||
|
||||
menu->item_links = g_sequence_new (g_menu_exporter_link_free);
|
||||
|
||||
n_items = g_menu_model_get_n_items (menu->model);
|
||||
if (n_items)
|
||||
g_menu_exporter_menu_items_changed (menu->model, 0, 0, n_items, menu);
|
||||
}
|
||||
|
||||
static GMenuExporterMenu *
|
||||
g_menu_exporter_menu_new (GMenuExporterGroup *group,
|
||||
guint id,
|
||||
GMenuModel *model)
|
||||
{
|
||||
GMenuExporterMenu *menu;
|
||||
|
||||
menu = g_slice_new0 (GMenuExporterMenu);
|
||||
menu->group = group;
|
||||
menu->id = id;
|
||||
menu->model = g_object_ref (model);
|
||||
|
||||
return menu;
|
||||
}
|
||||
|
||||
/* {{{1 GMenuExporterGroup */
|
||||
|
||||
struct _GMenuExporterGroup
|
||||
{
|
||||
GMenuExporter *exporter;
|
||||
guint id;
|
||||
|
||||
GHashTable *menus;
|
||||
guint next_menu_id;
|
||||
gboolean prepared;
|
||||
|
||||
gint subscribed;
|
||||
};
|
||||
|
||||
static void
|
||||
g_menu_exporter_group_check_if_useless (GMenuExporterGroup *group)
|
||||
{
|
||||
if (g_hash_table_size (group->menus) == 0 && group->subscribed == 0)
|
||||
{
|
||||
g_menu_exporter_remove_group (group->exporter, group->id);
|
||||
|
||||
g_hash_table_unref (group->menus);
|
||||
|
||||
g_slice_free (GMenuExporterGroup, group);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_group_subscribe (GMenuExporterGroup *group,
|
||||
GVariantBuilder *builder)
|
||||
{
|
||||
GHashTableIter iter;
|
||||
gpointer key, val;
|
||||
|
||||
if (!group->prepared)
|
||||
{
|
||||
GMenuExporterMenu *menu;
|
||||
|
||||
/* set this first, so that any menus created during the
|
||||
* preparation of the first menu also end up in the prepared
|
||||
* state.
|
||||
* */
|
||||
group->prepared = TRUE;
|
||||
|
||||
menu = g_hash_table_lookup (group->menus, 0);
|
||||
g_menu_exporter_menu_prepare (menu);
|
||||
}
|
||||
|
||||
group->subscribed++;
|
||||
|
||||
g_hash_table_iter_init (&iter, group->menus);
|
||||
while (g_hash_table_iter_next (&iter, &key, &val))
|
||||
{
|
||||
guint id = GPOINTER_TO_INT (key);
|
||||
GMenuExporterMenu *menu = val;
|
||||
|
||||
if (g_sequence_get_length (menu->item_links))
|
||||
{
|
||||
g_variant_builder_open (builder, G_VARIANT_TYPE ("(uuaa{sv})"));
|
||||
g_variant_builder_add (builder, "u", group->id);
|
||||
g_variant_builder_add (builder, "u", id);
|
||||
g_variant_builder_add_value (builder, g_menu_exporter_menu_list (menu));
|
||||
g_variant_builder_close (builder);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_group_unsubscribe (GMenuExporterGroup *group,
|
||||
gint count)
|
||||
{
|
||||
g_assert (group->subscribed >= count);
|
||||
|
||||
group->subscribed -= count;
|
||||
|
||||
g_menu_exporter_group_check_if_useless (group);
|
||||
}
|
||||
|
||||
static GMenuExporter *
|
||||
g_menu_exporter_group_get_exporter (GMenuExporterGroup *group)
|
||||
{
|
||||
return group->exporter;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
g_menu_exporter_group_is_subscribed (GMenuExporterGroup *group)
|
||||
{
|
||||
return group->subscribed > 0;
|
||||
}
|
||||
|
||||
static guint
|
||||
g_menu_exporter_group_get_id (GMenuExporterGroup *group)
|
||||
{
|
||||
return group->id;
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_group_remove_menu (GMenuExporterGroup *group,
|
||||
guint id)
|
||||
{
|
||||
g_hash_table_remove (group->menus, GINT_TO_POINTER (id));
|
||||
|
||||
g_menu_exporter_group_check_if_useless (group);
|
||||
}
|
||||
|
||||
static GMenuExporterMenu *
|
||||
g_menu_exporter_group_add_menu (GMenuExporterGroup *group,
|
||||
GMenuModel *model)
|
||||
{
|
||||
GMenuExporterMenu *menu;
|
||||
guint id;
|
||||
|
||||
id = group->next_menu_id++;
|
||||
menu = g_menu_exporter_menu_new (group, id, model);
|
||||
g_hash_table_insert (group->menus, GINT_TO_POINTER (id), menu);
|
||||
|
||||
if (group->prepared)
|
||||
g_menu_exporter_menu_prepare (menu);
|
||||
|
||||
return menu;
|
||||
}
|
||||
|
||||
static GMenuExporterGroup *
|
||||
g_menu_exporter_group_new (GMenuExporter *exporter,
|
||||
guint id)
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
|
||||
group = g_slice_new0 (GMenuExporterGroup);
|
||||
group->menus = g_hash_table_new (NULL, NULL);
|
||||
group->exporter = exporter;
|
||||
group->id = id;
|
||||
|
||||
return group;
|
||||
}
|
||||
|
||||
/* {{{1 GMenuExporterRemote */
|
||||
|
||||
struct _GMenuExporterRemote
|
||||
{
|
||||
GMenuExporter *exporter;
|
||||
GHashTable *watches;
|
||||
guint watch_id;
|
||||
};
|
||||
|
||||
static void
|
||||
g_menu_exporter_remote_subscribe (GMenuExporterRemote *remote,
|
||||
guint group_id,
|
||||
GVariantBuilder *builder)
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
guint count;
|
||||
|
||||
count = (gsize) g_hash_table_lookup (remote->watches, GINT_TO_POINTER (group_id));
|
||||
g_hash_table_insert (remote->watches, GINT_TO_POINTER (group_id), GINT_TO_POINTER (count + 1));
|
||||
|
||||
group = g_menu_exporter_lookup_group (remote->exporter, group_id);
|
||||
g_menu_exporter_group_subscribe (group, builder);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_remote_unsubscribe (GMenuExporterRemote *remote,
|
||||
guint group_id)
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
guint count;
|
||||
|
||||
count = (gsize) g_hash_table_lookup (remote->watches, GINT_TO_POINTER (group_id));
|
||||
|
||||
if (count == 0)
|
||||
return;
|
||||
|
||||
if (count != 1)
|
||||
g_hash_table_insert (remote->watches, GINT_TO_POINTER (group_id), GINT_TO_POINTER (count - 1));
|
||||
else
|
||||
g_hash_table_remove (remote->watches, GINT_TO_POINTER (group_id));
|
||||
|
||||
group = g_menu_exporter_lookup_group (remote->exporter, group_id);
|
||||
g_menu_exporter_group_unsubscribe (group, 1);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
g_menu_exporter_remote_has_subscriptions (GMenuExporterRemote *remote)
|
||||
{
|
||||
return g_hash_table_size (remote->watches) != 0;
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_remote_free (gpointer data)
|
||||
{
|
||||
GMenuExporterRemote *remote = data;
|
||||
GHashTableIter iter;
|
||||
gpointer key, val;
|
||||
|
||||
g_hash_table_iter_init (&iter, remote->watches);
|
||||
while (g_hash_table_iter_next (&iter, &key, &val))
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
|
||||
group = g_menu_exporter_lookup_group (remote->exporter, GPOINTER_TO_INT (key));
|
||||
g_menu_exporter_group_unsubscribe (group, GPOINTER_TO_INT (val));
|
||||
}
|
||||
|
||||
g_bus_unwatch_name (remote->watch_id);
|
||||
g_hash_table_unref (remote->watches);
|
||||
|
||||
g_slice_free (GMenuExporterRemote, remote);
|
||||
}
|
||||
|
||||
static GMenuExporterRemote *
|
||||
g_menu_exporter_remote_new (GMenuExporter *exporter,
|
||||
guint watch_id)
|
||||
{
|
||||
GMenuExporterRemote *remote;
|
||||
|
||||
remote = g_slice_new0 (GMenuExporterRemote);
|
||||
remote->exporter = exporter;
|
||||
remote->watches = g_hash_table_new (NULL, NULL);
|
||||
remote->watch_id = watch_id;
|
||||
|
||||
return remote;
|
||||
}
|
||||
|
||||
/* {{{1 GMenuExporter */
|
||||
|
||||
struct _GMenuExporter
|
||||
{
|
||||
GDBusConnection *connection;
|
||||
gchar *object_path;
|
||||
guint registration_id;
|
||||
GHashTable *groups;
|
||||
guint next_group_id;
|
||||
|
||||
GMenuExporterMenu *root;
|
||||
GHashTable *remotes;
|
||||
};
|
||||
|
||||
static void
|
||||
g_menu_exporter_name_vanished (GDBusConnection *connection,
|
||||
const gchar *name,
|
||||
gpointer user_data)
|
||||
{
|
||||
GMenuExporter *exporter = user_data;
|
||||
|
||||
g_assert (exporter->connection == connection);
|
||||
|
||||
g_hash_table_remove (exporter->remotes, name);
|
||||
}
|
||||
|
||||
static GVariant *
|
||||
g_menu_exporter_subscribe (GMenuExporter *exporter,
|
||||
const gchar *sender,
|
||||
GVariant *group_ids)
|
||||
{
|
||||
GMenuExporterRemote *remote;
|
||||
GVariantBuilder builder;
|
||||
GVariantIter iter;
|
||||
guint32 id;
|
||||
|
||||
remote = g_hash_table_lookup (exporter->remotes, sender);
|
||||
|
||||
if (remote == NULL)
|
||||
{
|
||||
guint watch_id;
|
||||
|
||||
watch_id = g_bus_watch_name_on_connection (exporter->connection, sender, G_BUS_NAME_WATCHER_FLAGS_NONE,
|
||||
NULL, g_menu_exporter_name_vanished, exporter, NULL);
|
||||
remote = g_menu_exporter_remote_new (exporter, watch_id);
|
||||
g_hash_table_insert (exporter->remotes, g_strdup (sender), remote);
|
||||
}
|
||||
|
||||
g_variant_builder_init (&builder, G_VARIANT_TYPE ("(a(uuaa{sv}))"));
|
||||
|
||||
g_variant_builder_open (&builder, G_VARIANT_TYPE ("a(uuaa{sv})"));
|
||||
|
||||
g_variant_iter_init (&iter, group_ids);
|
||||
while (g_variant_iter_next (&iter, "u", &id))
|
||||
g_menu_exporter_remote_subscribe (remote, id, &builder);
|
||||
|
||||
g_variant_builder_close (&builder);
|
||||
|
||||
return g_variant_builder_end (&builder);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_unsubscribe (GMenuExporter *exporter,
|
||||
const gchar *sender,
|
||||
GVariant *group_ids)
|
||||
{
|
||||
GMenuExporterRemote *remote;
|
||||
GVariantIter iter;
|
||||
guint32 id;
|
||||
|
||||
remote = g_hash_table_lookup (exporter->remotes, sender);
|
||||
|
||||
if (remote == NULL)
|
||||
return;
|
||||
|
||||
g_variant_iter_init (&iter, group_ids);
|
||||
while (g_variant_iter_next (&iter, "u", &id))
|
||||
g_menu_exporter_remote_unsubscribe (remote, id);
|
||||
|
||||
if (!g_menu_exporter_remote_has_subscriptions (remote))
|
||||
g_hash_table_remove (exporter->remotes, sender);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_report (GMenuExporter *exporter,
|
||||
GVariant *report)
|
||||
{
|
||||
GVariantBuilder builder;
|
||||
|
||||
g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE);
|
||||
g_variant_builder_open (&builder, G_VARIANT_TYPE_ARRAY);
|
||||
g_variant_builder_add_value (&builder, report);
|
||||
g_variant_builder_close (&builder);
|
||||
|
||||
g_dbus_connection_emit_signal (exporter->connection,
|
||||
NULL,
|
||||
exporter->object_path,
|
||||
"org.gtk.Menus", "Changed",
|
||||
g_variant_builder_end (&builder),
|
||||
NULL);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_remove_group (GMenuExporter *exporter,
|
||||
guint id)
|
||||
{
|
||||
g_hash_table_remove (exporter->groups, GINT_TO_POINTER (id));
|
||||
}
|
||||
|
||||
static GMenuExporterGroup *
|
||||
g_menu_exporter_lookup_group (GMenuExporter *exporter,
|
||||
guint group_id)
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
|
||||
group = g_hash_table_lookup (exporter->groups, GINT_TO_POINTER (group_id));
|
||||
|
||||
if (group == NULL)
|
||||
{
|
||||
group = g_menu_exporter_group_new (exporter, group_id);
|
||||
g_hash_table_insert (exporter->groups, GINT_TO_POINTER (group_id), group);
|
||||
}
|
||||
|
||||
return group;
|
||||
}
|
||||
|
||||
static GMenuExporterGroup *
|
||||
g_menu_exporter_create_group (GMenuExporter *exporter)
|
||||
{
|
||||
GMenuExporterGroup *group;
|
||||
guint id;
|
||||
|
||||
id = exporter->next_group_id++;
|
||||
group = g_menu_exporter_group_new (exporter, id);
|
||||
g_hash_table_insert (exporter->groups, GINT_TO_POINTER (id), group);
|
||||
|
||||
return group;
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_free (GMenuExporter *exporter)
|
||||
{
|
||||
g_dbus_connection_unregister_object (exporter->connection, exporter->registration_id);
|
||||
g_menu_exporter_menu_free (exporter->root);
|
||||
g_hash_table_unref (exporter->remotes);
|
||||
g_hash_table_unref (exporter->groups);
|
||||
g_object_unref (exporter->connection);
|
||||
g_free (exporter->object_path);
|
||||
|
||||
g_slice_free (GMenuExporter, exporter);
|
||||
}
|
||||
|
||||
static void
|
||||
g_menu_exporter_method_call (GDBusConnection *connection,
|
||||
const gchar *sender,
|
||||
const gchar *object_path,
|
||||
const gchar *interface_name,
|
||||
const gchar *method_name,
|
||||
GVariant *parameters,
|
||||
GDBusMethodInvocation *invocation,
|
||||
gpointer user_data)
|
||||
{
|
||||
GMenuExporter *exporter = user_data;
|
||||
GVariant *group_ids;
|
||||
|
||||
group_ids = g_variant_get_child_value (parameters, 0);
|
||||
|
||||
if (g_str_equal (method_name, "Start"))
|
||||
g_dbus_method_invocation_return_value (invocation, g_menu_exporter_subscribe (exporter, sender, group_ids));
|
||||
|
||||
else if (g_str_equal (method_name, "End"))
|
||||
{
|
||||
g_menu_exporter_unsubscribe (exporter, sender, group_ids);
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
}
|
||||
|
||||
else
|
||||
g_assert_not_reached ();
|
||||
|
||||
g_variant_unref (group_ids);
|
||||
}
|
||||
|
||||
static GDBusConnection *
|
||||
g_menu_exporter_get_connection (GMenuExporter *exporter)
|
||||
{
|
||||
return exporter->connection;
|
||||
}
|
||||
|
||||
static const gchar *
|
||||
g_menu_exporter_get_object_path (GMenuExporter *exporter)
|
||||
{
|
||||
return exporter->object_path;
|
||||
}
|
||||
|
||||
static GMenuExporter *
|
||||
g_menu_exporter_new (GDBusConnection *connection,
|
||||
const gchar *object_path,
|
||||
GMenuModel *model,
|
||||
GError **error)
|
||||
{
|
||||
const GDBusInterfaceVTable vtable = {
|
||||
g_menu_exporter_method_call,
|
||||
};
|
||||
GMenuExporter *exporter;
|
||||
guint id;
|
||||
|
||||
exporter = g_slice_new0 (GMenuExporter);
|
||||
|
||||
id = g_dbus_connection_register_object (connection, object_path, org_gtk_Menus_get_interface (),
|
||||
&vtable, exporter, NULL, error);
|
||||
|
||||
if (id == 0)
|
||||
{
|
||||
g_slice_free (GMenuExporter, exporter);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
exporter->connection = g_object_ref (connection);
|
||||
exporter->object_path = g_strdup (object_path);
|
||||
exporter->registration_id = id;
|
||||
exporter->groups = g_hash_table_new (NULL, NULL);
|
||||
exporter->remotes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_menu_exporter_remote_free);
|
||||
exporter->root = g_menu_exporter_group_add_menu (g_menu_exporter_create_group (exporter), model);
|
||||
|
||||
return exporter;
|
||||
}
|
||||
|
||||
/* {{{1 Public API */
|
||||
|
||||
static GHashTable *g_menu_exporter_exported_menus;
|
||||
|
||||
/**
|
||||
* g_menu_exporter_export:
|
||||
* @connection: a #GDBusConnection
|
||||
* @object_path: a D-Bus object path
|
||||
* @menu: a #GMenuModel
|
||||
* @error: return location for an error, or %NULL
|
||||
*
|
||||
* Exports @menu on @connection at @object_path.
|
||||
*
|
||||
* The implemented D-Bus API should be considered private.
|
||||
* It is subject to change in the future.
|
||||
*
|
||||
* A given menu model can only be exported on one object path
|
||||
* and an object_path can only have one action group exported
|
||||
* on it. If either constraint is violated, the export will
|
||||
* fail and %FALSE will be returned (with @error set accordingly).
|
||||
*
|
||||
* Use g_menu_exporter_stop() to stop exporting @menu
|
||||
* or g_menu_exporter_query() to find out if and where a given
|
||||
* menu model is exported.
|
||||
*
|
||||
* Returns: %TRUE if the export is successful, or %FALSE (with
|
||||
* @error set) in the event of a failure.
|
||||
*/
|
||||
gboolean
|
||||
g_menu_exporter_export (GDBusConnection *connection,
|
||||
const gchar *object_path,
|
||||
GMenuModel *menu,
|
||||
GError **error)
|
||||
{
|
||||
GMenuExporter *exporter;
|
||||
|
||||
if G_UNLIKELY (g_menu_exporter_exported_menus == NULL)
|
||||
g_menu_exporter_exported_menus = g_hash_table_new (NULL, NULL);
|
||||
|
||||
if G_UNLIKELY (g_hash_table_lookup (g_menu_exporter_exported_menus, menu))
|
||||
{
|
||||
g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FILE_EXISTS, "The given GMenuModel has already been exported");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
exporter = g_menu_exporter_new (connection, object_path, menu, error);
|
||||
|
||||
if (exporter == NULL)
|
||||
return FALSE;
|
||||
|
||||
g_hash_table_insert (g_menu_exporter_exported_menus, menu, exporter);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_menu_exporter_stop:
|
||||
* @menu: a #GMenuModel
|
||||
*
|
||||
* Stops the export of @menu.
|
||||
*
|
||||
* This reverses the effect of a previous call to
|
||||
* g_menu_exporter_export() for @menu.
|
||||
*
|
||||
* Returns: %TRUE if an export was stopped or %FALSE
|
||||
* if @menu was not exported in the first place
|
||||
*/
|
||||
gboolean
|
||||
g_menu_exporter_stop (GMenuModel *menu)
|
||||
{
|
||||
GMenuExporter *exporter;
|
||||
|
||||
if G_UNLIKELY (g_menu_exporter_exported_menus == NULL)
|
||||
return FALSE;
|
||||
|
||||
exporter = g_hash_table_lookup (g_menu_exporter_exported_menus, menu);
|
||||
if G_UNLIKELY (exporter == NULL)
|
||||
return FALSE;
|
||||
|
||||
g_hash_table_remove (g_menu_exporter_exported_menus, menu);
|
||||
g_menu_exporter_free (exporter);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_menu_exporter_query:
|
||||
* @menu: a #GMenuModel
|
||||
* @connection: (out): the #GDBusConnection used for exporting
|
||||
* @object_path: (out): the object path used for exporting
|
||||
*
|
||||
* Queries if and where @menu is exported.
|
||||
*
|
||||
* If @menu is exported, %TRUE is returned. If @connection is
|
||||
* non-%NULL then it is set to the #GDBusConnection used for
|
||||
* the export. If @object_path is non-%NULL then it is set to
|
||||
* the object path.
|
||||
*
|
||||
* If the @menu is not exported, %FALSE is returned and
|
||||
* @connection and @object_path remain unmodified.
|
||||
*
|
||||
* Returns: %TRUE if @menu was exported, else %FALSE
|
||||
*/
|
||||
gboolean
|
||||
g_menu_exporter_query (GMenuModel *menu,
|
||||
GDBusConnection **connection,
|
||||
const gchar **object_path)
|
||||
{
|
||||
GMenuExporter *exporter;
|
||||
|
||||
if (g_menu_exporter_exported_menus == NULL)
|
||||
return FALSE;
|
||||
|
||||
exporter = g_hash_table_lookup (g_menu_exporter_exported_menus, menu);
|
||||
if (exporter == NULL)
|
||||
return FALSE;
|
||||
|
||||
if (connection)
|
||||
*connection = g_menu_exporter_get_connection (exporter);
|
||||
|
||||
if (object_path)
|
||||
*object_path = g_menu_exporter_get_object_path (exporter);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* {{{1 Epilogue */
|
||||
/* vim:set foldmethod=marker: */
|
||||
45
gio/gmenuexporter.h
Normal file
45
gio/gmenuexporter.h
Normal file
@ -0,0 +1,45 @@
|
||||
/*
|
||||
* Copyright © 2011 Canonical Ltd.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of the
|
||||
* licence, 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
||||
* USA.
|
||||
*
|
||||
* Author: Ryan Lortie <desrt@desrt.ca>
|
||||
*/
|
||||
|
||||
#ifndef __G_MENU_EXPORTER_H__
|
||||
#define __G_MENU_EXPORTER_H__
|
||||
|
||||
#include <gio/gdbusconnection.h>
|
||||
#include <gio/gmenumodel.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
gboolean g_menu_exporter_export (GDBusConnection *connection,
|
||||
const gchar *object_path,
|
||||
GMenuModel *menu,
|
||||
GError **error);
|
||||
|
||||
gboolean g_menu_exporter_stop (GMenuModel *menu);
|
||||
|
||||
|
||||
|
||||
gboolean g_menu_exporter_query (GMenuModel *menu,
|
||||
GDBusConnection **connection,
|
||||
const gchar **object_path);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __G_MENU_EXPORTER_H__ */
|
||||
Loading…
Reference in New Issue
Block a user