client-main.c 10 KB
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/* 
 * Copyright (C) 2010-2011 Daiki Ueno <ueno@unixuser.org>
 * Copyright (C) 2010-2011 Red Hat, Inc.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif  /* HAVE_CONFIG_H */

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#include <stdlib.h>
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#ifdef HAVE_ATSPI
#include <dbus/dbus.h>
#include <atspi/atspi.h>
#endif  /* HAVE_ATSPI */
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#ifdef HAVE_IBUS
#include <ibus.h>
#endif  /* HAVE_IBUS */
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#include <gtk/gtk.h>
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#include <glib/gi18n.h>
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#include "eekboard/eekboard-client.h"
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#include "client.h"
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#define DEFAULT_KEYBOARD "us"
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static gboolean opt_system = FALSE;
static gboolean opt_session = FALSE;
static gchar *opt_address = NULL;

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static gboolean opt_focus = FALSE;
static gboolean opt_keystroke = FALSE;

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static gchar *opt_keyboards = NULL;

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static gboolean opt_fullscreen = FALSE;
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static const GOptionEntry options[] = {
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    {"system", 'y', 0, G_OPTION_ARG_NONE, &opt_system,
     N_("Connect to the system bus")},
    {"session", 'e', 0, G_OPTION_ARG_NONE, &opt_session,
     N_("Connect to the session bus")},
    {"address", 'a', 0, G_OPTION_ARG_STRING, &opt_address,
     N_("Connect to the given D-Bus address")},
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#if ENABLE_FOCUS_LISTENER
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    {"listen-focus", 'f', 0, G_OPTION_ARG_NONE, &opt_focus,
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     N_("Listen focus change events")},
#endif  /* ENABLE_FOCUS_LISTENER */
#ifdef HAVE_ATSPI
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    {"listen-keystroke", 's', 0, G_OPTION_ARG_NONE, &opt_keystroke,
     N_("Listen keystroke events with AT-SPI")},
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#endif  /* HAVE_ATSPI */
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    {"keyboards", 'k', 0, G_OPTION_ARG_STRING, &opt_keyboards,
     N_("Specify keyboards (comma separated)")},
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    {"fullscreen", 'F', 0, G_OPTION_ARG_NONE, &opt_fullscreen,
     N_("Create window in fullscreen mode")},
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    {NULL}
};

static void
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on_notify_visible (GObject    *object,
                   GParamSpec *spec,
                   gpointer    user_data)
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{
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    GMainLoop *loop = user_data;
    gboolean visible;

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    g_object_get (object, "visible", &visible, NULL);
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    /* user explicitly closed the window */
    if (!visible && eekboard_context_is_enabled (EEKBOARD_CONTEXT(object)))
        g_main_loop_quit (loop);
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}

static void
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on_context_destroyed (EekboardContext *context,
                      gpointer         user_data)
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{
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    GMainLoop *loop = user_data;

    g_main_loop_quit (loop);
}

static void
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on_destroyed (EekboardClient *eekboard,
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              gpointer          user_data)
{
    GMainLoop *loop = user_data;

    g_main_loop_quit (loop);
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}

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enum FocusListenerType {
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    FOCUS_NONE,
    FOCUS_ATSPI,
    FOCUS_IBUS
};

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static gboolean
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set_keyboards (Client              *client,
               const gchar * const *keyboards)
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{
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    if (g_strv_length ((gchar **)keyboards) == 0) {
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        if (!client_enable_xkl (client)) {
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            g_printerr ("Can't register xklavier event listeners\n");
            return FALSE;
        }
    } else {
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        if (!client_set_keyboards (client, keyboards)) {
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            gchar *str = g_strjoinv (", ", (gchar **)keyboards);
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            g_printerr ("Can't set keyboards \"%s\"\n", str);
            g_free (str);
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            return FALSE;
        }
    }
    return TRUE;
}

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int
main (int argc, char **argv)
{
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    Client *client = NULL;
    EekboardClient *eekboard;
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    EekboardContext *context;
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    GBusType bus_type;
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    GDBusConnection *connection;
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    GError *error;
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    GOptionContext *option_context;
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    GMainLoop *loop = NULL;
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    gint focus;
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    GSettings *settings = NULL;
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    gchar **keyboards;
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    gint retval = 0;
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    if (!gtk_init_check (&argc, &argv)) {
        g_printerr ("Can't init GTK\n");
        exit (1);
    }
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    eek_init ();
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    option_context = g_option_context_new ("eekboard-desktop-client");
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    g_option_context_add_main_entries (option_context, options, NULL);
    g_option_context_parse (option_context, &argc, &argv, NULL);
    g_option_context_free (option_context);
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    if (opt_system)
        bus_type = G_BUS_TYPE_SYSTEM;
    else if (opt_address)
        bus_type = G_BUS_TYPE_NONE;
    else
        bus_type = G_BUS_TYPE_SESSION;

    switch (bus_type) {
    case G_BUS_TYPE_SYSTEM:
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        error = NULL;
        connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
        if (connection == NULL) {
            g_printerr ("Can't connect to the system bus: %s\n",
                        error->message);
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            g_error_free (error);
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            exit (1);
        }
        break;
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    case G_BUS_TYPE_SESSION:
        error = NULL;
        connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
        if (connection == NULL) {
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            g_printerr ("Can't connect to the session bus: %s\n",
                        error->message);
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            g_error_free (error);
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            exit (1);
        }
        break;
    case G_BUS_TYPE_NONE:
        error = NULL;
        connection = g_dbus_connection_new_for_address_sync (opt_address,
                                                             0,
                                                             NULL,
                                                             NULL,
                                                             &error);
        if (connection == NULL) {
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            g_printerr ("Can't connect to the bus at %s: %s\n",
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                        opt_address,
                        error->message);
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            g_error_free (error);
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            exit (1);
        }
        break;
    default:
        g_assert_not_reached ();
        break;
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    }

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    client = client_new (connection);
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    g_object_unref (connection);

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    if (client == NULL) {
        g_printerr ("Can't create a client\n");
        exit (1);
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    }

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    settings = g_settings_new ("org.fedorahosted.eekboard");
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    focus = FOCUS_NONE;
    if (opt_focus) {
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        gchar *focus_listener = g_settings_get_string (settings,
                                                       "focus-listener");
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        const struct {
            const gchar *name;
            enum FocusListenerType type;
        } focus_listeners[] = {
#ifdef HAVE_ATSPI
            { "atspi", FOCUS_ATSPI },
#endif
#ifdef HAVE_IBUS
            { "ibus", FOCUS_IBUS },
#endif
            { NULL }
        };
        gint i;

        focus = FOCUS_NONE;
        for (i = 0; focus_listeners[i].name; i++) {
            if (g_strcmp0 (focus_listener, focus_listeners[i].name) == 0)
                focus = focus_listeners[i].type;
        }
        if (focus == FOCUS_NONE) {
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            g_printerr ("Unknown focus listener \"%s\".  "
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                        "Try \"atspi\" or \"ibus\"\n", focus_listener);
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            retval = 1;
            goto out;
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        }
    }
        
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#ifdef HAVE_ATSPI
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    if (focus == FOCUS_ATSPI || opt_keystroke) {
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        GSettings *desktop_settings =
            g_settings_new ("org.gnome.desktop.interface");
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        gboolean accessibility_enabled =
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            g_settings_get_boolean (desktop_settings, "toolkit-accessibility");
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        g_object_unref (desktop_settings);
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        if (accessibility_enabled) {
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            if (atspi_init () != 0) {
                g_printerr ("Can't init AT-SPI 2\n");
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                retval = 1;
                goto out;
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            }

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            if (focus == FOCUS_ATSPI &&
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                !client_enable_atspi_focus (client)) {
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                g_printerr ("Can't register AT-SPI focus change event listeners\n");
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                retval = 1;
                goto out;
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            }

            if (opt_keystroke &&
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                !client_enable_atspi_keystroke (client)) {
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                g_printerr ("Can't register AT-SPI keystroke event listeners\n");
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                retval = 1;
                goto out;
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            }
        } else {
            g_printerr ("Desktop accessibility support is disabled\n");
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            retval = 1;
            goto out;
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        }
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    }
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#endif  /* HAVE_ATSPI */
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#ifdef HAVE_IBUS
    if (focus == FOCUS_IBUS) {
        ibus_init ();

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        if (!client_enable_ibus_focus (client)) {
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            g_printerr ("Can't register IBus focus change event listeners\n");
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            retval = 1;
            goto out;
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        }
    }
#endif  /* HAVE_IBUS */

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#ifdef HAVE_XTEST
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    if (!client_enable_xtest (client)) {
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        g_printerr ("Can't init xtest\n");
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        g_object_unref (client);
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        exit (1);
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    }
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#endif  /* HAVE_XTEST */
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    loop = g_main_loop_new (NULL, FALSE);
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    if (!opt_focus) {
        g_object_get (client, "context", &context, NULL);
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        g_signal_connect (context, "notify::visible",
                          G_CALLBACK(on_notify_visible), loop);
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        g_signal_connect (context, "destroyed",
                          G_CALLBACK(on_context_destroyed), loop);
        g_object_unref (context);
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    }

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    if (opt_fullscreen ||
        g_settings_get_boolean (settings, "start-fullscreen")) {
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        g_object_get (client, "context", &context, NULL);
        eekboard_context_set_fullscreen (context, TRUE, NULL);
        g_object_unref (context);
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    }

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    g_object_get (client, "eekboard", &eekboard, NULL);
    g_signal_connect (eekboard, "destroyed",
                      G_CALLBACK(on_destroyed), loop);
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    g_object_unref (eekboard);
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    if (opt_keyboards != NULL)
        keyboards = g_strsplit (opt_keyboards, ",", -1);
    else
        keyboards = g_settings_get_strv (settings, "keyboards");
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    if (!set_keyboards (client, (const gchar * const *)keyboards)) {
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        g_strfreev (keyboards);
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        retval = 1;
        goto out;
    }
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    g_strfreev (keyboards);
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    g_main_loop_run (loop);
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 out:
    if (loop)
        g_main_loop_unref (loop);
    if (client)
        g_object_unref (client);
    if (settings)
        g_object_unref (settings);

    return retval;
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}