path: root/src/ephy-shell.c

/*
 *  Copyright (C) 2000-2004 Marco Pesenti Gritti
 *  Copyright (C) 2003, 2004 Christian Persch
 *
 *  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 2, 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *  $Id$
 */

#include "config.h"

#include "ephy-shell.h"
#include "ephy-type-builtins.h"
#include "ephy-embed-shell.h"
#include "ephy-embed-single.h"
#include "eel-gconf-extensions.h"
#include "ephy-prefs.h"
#include "ephy-file-helpers.h"
#include "ephy-favicon-cache.h"
#include "ephy-window.h"
#include "ephy-bookmarks-import.h"
#include "ephy-bookmarks-editor.h"
#include "ephy-history-window.h"
#include "pdm-dialog.h"
#include "prefs-dialog.h"
#include "ephy-debug.h"
#include "ephy-extensions-manager.h"
#include "ephy-session.h"
#include "ephy-lockdown.h"
#include "downloader-view.h"
#include "egg-toolbars-model.h"
#include "ephy-toolbars-model.h"
#include "ephy-toolbar.h"
#include "ephy-automation.h"
#include "print-dialog.h"
#include "ephy-prefs.h"
#include "ephy-gui.h"

#ifdef ENABLE_DBUS
#include "ephy-dbus.h"
#endif

#include <string.h>
#include <bonobo/bonobo-main.h>
#include <glib/gi18n.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkmessagedialog.h>
#include <gtk/gtknotebook.h>
#include <dirent.h>
#include <unistd.h>
#include <libgnomeui/gnome-client.h>

#define AUTOMATION_IID "OAFIID:GNOME_Epiphany_Automation"

#define EPHY_SHELL_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SHELL, EphyShellPrivate))

struct _EphyShellPrivate
{
    BonoboGenericFactory *automation_factory;
    EphySession *session;
    GObject *lockdown;
    EphyBookmarks *bookmarks;
    EggToolbarsModel *toolbars_model;
    EggToolbarsModel *fs_toolbars_model;
    EphyExtensionsManager *extensions_manager;
    GObject *dbus_service;
    GtkWidget *bme;
    GtkWidget *history_window;
    GObject *pdm_dialog;
    GObject *prefs_dialog;
    GObject *print_setup_dialog;
    GList *del_on_exit;

    gboolean embed_single_connected;
};

EphyShell *ephy_shell = NULL;

static void ephy_shell_class_init   (EphyShellClass *klass);
static void ephy_shell_init     (EphyShell *shell);
static void ephy_shell_dispose      (GObject *object);
static void ephy_shell_finalize     (GObject *object);
static GObject *impl_get_embed_single   (EphyEmbedShell *embed_shell);

static GObjectClass *parent_class = NULL;

GQuark
ephy_shell_error_quark (void)
{
    static GQuark q = 0;

    if (q == 0)
    {
        q = g_quark_from_static_string ("ephy-shell-error-quark");
    }

    return q;
}

GType
ephy_shell_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0))
    {
        static const GTypeInfo our_info =
        {
            sizeof (EphyShellClass),
            NULL, /* base_init */
            NULL, /* base_finalize */
            (GClassInitFunc) ephy_shell_class_init,
            NULL,
            NULL, /* class_data */
            sizeof (EphyShell),
            0, /* n_preallocs */
            (GInstanceInitFunc) ephy_shell_init
        };

        type = g_type_register_static (EPHY_TYPE_EMBED_SHELL,
                           "EphyShell",
                           &our_info, 0);
    }

    return type;
}

static void
ephy_shell_class_init (EphyShellClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    EphyEmbedShellClass *embed_shell_class = EPHY_EMBED_SHELL_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    object_class->dispose = ephy_shell_dispose;
    object_class->finalize = ephy_shell_finalize;

    embed_shell_class->get_embed_single = impl_get_embed_single;

    g_type_class_add_private (object_class, sizeof(EphyShellPrivate));
}

static EphyEmbed *
ephy_shell_new_window_cb (EphyEmbedSingle *single,
              EphyEmbed *parent_embed,
              EphyEmbedChrome chromemask,
              EphyShell *shell)
{
    GtkWidget *parent = NULL;
    EphyTab *new_tab;
    gboolean is_popup;
    EphyNewTabFlags flags = EPHY_NEW_TAB_DONT_SHOW_WINDOW |
                EPHY_NEW_TAB_APPEND_LAST |
                EPHY_NEW_TAB_IN_NEW_WINDOW |
                EPHY_NEW_TAB_JUMP;

    LOG ("ephy_shell_new_window_cb tab chrome %d", chromemask);

    if (eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_JAVASCRIPT_CHROME))
    {
        chromemask = EPHY_EMBED_CHROME_ALL;
    }

    if (parent_embed != NULL)
    {
        /* this will either be a EphyWindow, or the embed itself
         * (in case it's about to be destroyed, which means it's already
         * removed from its tab)
         */
        parent = gtk_widget_get_toplevel (GTK_WIDGET (parent_embed));
    }

    /* what's a popup ? ATM, any window opened with menubar toggled on 
     * is *not* a popup 
     */
    is_popup = (chromemask & EPHY_EMBED_CHROME_MENUBAR) == 0;

    new_tab = ephy_shell_new_tab_full
        (shell,
         EPHY_IS_WINDOW (parent) ? EPHY_WINDOW (parent) : NULL,
         NULL, NULL, flags, chromemask, is_popup, 0);

    return ephy_tab_get_embed (new_tab);
}


static gboolean
ephy_shell_add_sidebar_cb (EphyEmbedSingle *embed_single,
               const char *url,
               const char *title,
               EphyShell *shell)
{
    EphySession *session;
    EphyWindow *window;
    GtkWidget *dialog;

    session = EPHY_SESSION (ephy_shell_get_session (shell));
    g_return_val_if_fail (EPHY_IS_SESSION (session), FALSE);

    window = ephy_session_get_active_window (session);

    dialog = gtk_message_dialog_new (GTK_WINDOW (window),
                     GTK_DIALOG_DESTROY_WITH_PARENT,
                     GTK_MESSAGE_ERROR,
                     GTK_BUTTONS_OK,
                     _("Sidebar extension required"));

    gtk_window_set_title (GTK_WINDOW (dialog), _("Sidebar Extension Required"));
    gtk_window_set_icon_name (GTK_WINDOW (dialog), "web-browser");

    gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
          _("The link you clicked needs the sidebar extension to be "
            "installed."));

    g_signal_connect_swapped (dialog, "response", 
                  G_CALLBACK (gtk_widget_destroy), dialog);

    gtk_widget_show (dialog);

    return TRUE;
}

static GObject*
impl_get_embed_single (EphyEmbedShell *embed_shell)
{
    EphyShell *shell = EPHY_SHELL (embed_shell);
    GObject *embed_single;

    embed_single = EPHY_EMBED_SHELL_CLASS (parent_class)->get_embed_single (embed_shell);

    if (embed_single != NULL && shell->priv->embed_single_connected == FALSE)
    {
        g_signal_connect_object (embed_single, "new-window",
                     G_CALLBACK (ephy_shell_new_window_cb),
                     shell, G_CONNECT_AFTER);

        g_signal_connect_object (embed_single, "add-sidebar",
                     G_CALLBACK (ephy_shell_add_sidebar_cb),
                     shell, G_CONNECT_AFTER);

        shell->priv->embed_single_connected = TRUE;
    }
    
    return embed_single;
}

static BonoboObject *
ephy_automation_factory_cb (BonoboGenericFactory *this_factory,
                const char *iid,
                EphyShell *shell)
{
    if (strcmp (iid, AUTOMATION_IID) == 0)
    {
        return BONOBO_OBJECT (g_object_new (EPHY_TYPE_AUTOMATION, NULL));
    }

    g_assert_not_reached ();

    return NULL;
}

static BonoboGenericFactory *
ephy_automation_factory_new (EphyShell *shell)
{
    BonoboGenericFactory *factory;
    GClosure *factory_closure;

    factory = g_object_new (bonobo_generic_factory_get_type (), NULL);

    factory_closure = g_cclosure_new
        (G_CALLBACK (ephy_automation_factory_cb), shell, NULL);

    bonobo_generic_factory_construct_noreg
        (factory, AUTOMATION_FACTORY_IID, factory_closure);

    return factory;
}

static void
ephy_shell_init (EphyShell *shell)
{
    EphyShell **ptr = &ephy_shell;

    shell->priv = EPHY_SHELL_GET_PRIVATE (shell);

    /* globally accessible singleton */
    g_assert (ephy_shell == NULL);
    ephy_shell = shell;
    g_object_add_weak_pointer (G_OBJECT(ephy_shell),
                   (gpointer *)ptr);

    /* Instantiate the automation factory */
    shell->priv->automation_factory = ephy_automation_factory_new (shell);
}

static char *
path_from_command_line_arg (const char *arg)
{
    char path[PATH_MAX];

    if (realpath (arg, path) != NULL)
    {
        return g_strdup (path);
    }
    else
    {
        return g_strdup (arg);
    }
}

static void
open_urls (GNOME_EphyAutomation automation,
       guint32 user_time,
       const char **args,
       CORBA_Environment *ev,
       gboolean new_tab,
       gboolean existing_window,
       gboolean fullscreen)
{
    int i;

    if (args == NULL)
    {
        /* Homepage or resume */
        GNOME_EphyAutomation_loadUrlWithStartupId
            (automation, "", fullscreen,
             existing_window, new_tab, user_time, ev);
    }
    else
    {
        for (i = 0; args[i] != NULL; i++)
        {
            char *path;

            path = path_from_command_line_arg (args[i]);

            GNOME_EphyAutomation_loadUrlWithStartupId
                (automation, path, fullscreen,
                 existing_window, new_tab, user_time, ev);

            g_free (path);
        }
    }
}

static gboolean
save_yourself_cb (GnomeClient *client,
          gint phase,
          GnomeSaveStyle save_style,
          gboolean shutdown,
          GnomeInteractStyle interact_style,
          gboolean fast,
          EphyShell *shell)
{
    char *argv[] = { NULL, "--load-session", NULL };
    char *discard_argv[] = { "rm", "-f", NULL };
    EphySession *session;
    char *tmp, *save_to;

    LOG ("save_yourself_cb");

    tmp = g_build_filename (ephy_dot_dir (),
                "session_gnome-XXXXXX",
                NULL);
    save_to = ephy_file_tmp_filename (tmp, "xml");
    g_free (tmp);

    session = EPHY_SESSION (ephy_shell_get_session (shell));

    argv[0] = g_get_prgname ();
    argv[2] = save_to;
    gnome_client_set_restart_command
        (client, 3, argv);

    discard_argv[2] = save_to;
    gnome_client_set_discard_command (client, 3,
                      discard_argv);

    ephy_session_save (session, save_to);

    g_free (save_to);

    return TRUE;
}

static void
die_cb (GnomeClient* client,
    EphyShell *shell)
{
    EphySession *session;

    LOG ("die_cb");

    session = EPHY_SESSION (ephy_shell_get_session (shell));
    ephy_session_close (session);
}

static void
gnome_session_init (EphyShell *shell)
{
    GnomeClient *client;

    client = gnome_master_client ();

    g_signal_connect_object (client, "save_yourself",
                 G_CALLBACK (save_yourself_cb), shell, 0);
    /* don't use connect_object here, since that will ref the shell
     * while dispatching the callbacks!
     */
    g_signal_connect (client, "die",
              G_CALLBACK (die_cb), shell);
}

gboolean
ephy_shell_startup (EphyShell *shell,
            EphyShellStartupFlags flags,
            guint32 user_time,
            const char **args,
            const char *string_arg,
            GError **error)
{
    CORBA_Environment ev;
    GNOME_EphyAutomation automation;
    Bonobo_RegistrationResult result;

    ephy_ensure_dir_exists (ephy_dot_dir ());

    CORBA_exception_init (&ev);

    result = bonobo_activation_register_active_server
        (AUTOMATION_FACTORY_IID, BONOBO_OBJREF (shell->priv->automation_factory), NULL);

    switch (result)
    {
        case Bonobo_ACTIVATION_REG_SUCCESS:
            break;
        case Bonobo_ACTIVATION_REG_ALREADY_ACTIVE:
            break;
        case Bonobo_ACTIVATION_REG_NOT_LISTED:
            g_set_error (error, EPHY_SHELL_ERROR,
                     EPHY_SHELL_ERROR_MISSING_SERVER,
                     _("Bonobo couldn't locate the GNOME_Epiphany_Automation.server "
                       "file. You can use bonobo-activation-sysconf to configure "
                       "the search path for bonobo server files."));
            break;
        case Bonobo_ACTIVATION_REG_ERROR:
            g_set_error (error, EPHY_SHELL_ERROR,
                     EPHY_SHELL_ERROR_FACTORY_REG_FAILED,
                     _("Epiphany can't be used now, due to an unexpected error "
                       "from Bonobo when attempting to register the automation "
                       "server"));
            break;
        default:
            g_assert_not_reached ();
    }

    if (result == Bonobo_ACTIVATION_REG_SUCCESS ||
         result == Bonobo_ACTIVATION_REG_ALREADY_ACTIVE)
    {
        automation = bonobo_activation_activate_from_id (AUTOMATION_IID,
                                 0, NULL, &ev);
        if (CORBA_Object_is_nil (automation, &ev))
        {
            g_set_error (error, EPHY_SHELL_ERROR,
                     EPHY_SHELL_ERROR_OBJECT_REG_FAILED,
                     _("Epiphany can't be used now, due to an unexpected error "
                       "from Bonobo when attempting to locate the automation "
                       "object."));
            automation = NULL;
            goto done;
        }

        /* init the session manager up here so we can quit while the resume dialogue is on */
        gnome_session_init (shell);

        if (flags & EPHY_SHELL_STARTUP_BOOKMARKS_EDITOR)
        {
            GNOME_EphyAutomation_openBookmarksEditorWithStartupId
                (automation, user_time, &ev);
        }
        else if (flags & EPHY_SHELL_STARTUP_SESSION)
        {
            GNOME_EphyAutomation_loadSessionWithStartupId
                (automation, string_arg, user_time, &ev);
        }
        else if (flags & EPHY_SHELL_STARTUP_IMPORT_BOOKMARKS)
        {
            GNOME_EphyAutomation_importBookmarks
                (automation, string_arg, &ev);
        }
        else if (flags & EPHY_SHELL_STARTUP_ADD_BOOKMARK)
        {
            GNOME_EphyAutomation_addBookmark
                (automation, string_arg, &ev);
        }
        else
        {
            open_urls (automation, user_time, args, &ev,
                   flags & EPHY_SHELL_STARTUP_TABS,
                   flags & EPHY_SHELL_STARTUP_EXISTING_WINDOW,
                   flags & EPHY_SHELL_STARTUP_FULLSCREEN);
        }

        bonobo_object_release_unref (automation, &ev);
    }

done:
    CORBA_exception_free (&ev);
    gdk_notify_startup_complete ();

    return !(result == Bonobo_ACTIVATION_REG_ALREADY_ACTIVE);
}

static void
ephy_shell_dispose (GObject *object)
{
    EphyShell *shell = EPHY_SHELL (object);
    EphyShellPrivate *priv = shell->priv;

    LOG ("EphyShell disposing");

    if (priv->automation_factory != NULL)
    {
        LOG ("Deregistering bonobo server");
        bonobo_activation_unregister_active_server
                (AUTOMATION_FACTORY_IID, BONOBO_OBJREF (priv->automation_factory));

        bonobo_object_unref (priv->automation_factory);
        priv->automation_factory = NULL;
    }

    if (shell->priv->extensions_manager != NULL)
    {
        LOG ("Unref extension manager");
        /* this will unload the extensions */
        g_object_unref (priv->extensions_manager);
        priv->extensions_manager = NULL;
    }

#ifdef ENABLE_DBUS
    if (priv->dbus_service != NULL)
    {
        LOG ("Shutting down DBUS service");
        g_object_unref (priv->dbus_service);
        priv->dbus_service = NULL;
    }
#endif

    if (priv->session != NULL)
    {
        LOG ("Unref session manager");
        g_object_unref (priv->session);
        priv->session = NULL;
    }

    if (priv->lockdown != NULL)
    {
        LOG ("Unref lockdown controller");
        g_object_unref (priv->lockdown);
        priv->lockdown = NULL;
    }

    if (priv->toolbars_model != NULL)
    {
        LOG ("Unref toolbars model");
        g_object_unref (priv->toolbars_model);
        priv->toolbars_model = NULL;
    }

    if (priv->fs_toolbars_model != NULL)
    {
        LOG ("Unref fullscreen toolbars model");
        g_object_unref (priv->fs_toolbars_model);
        priv->fs_toolbars_model = NULL;
    }

    if (priv->bme != NULL)
    {
        LOG ("Unref Bookmarks Editor");
        gtk_widget_destroy (GTK_WIDGET (priv->bme));
        priv->bme = NULL;
    }

    if (priv->history_window != NULL)
    {
        LOG ("Unref History Window");
        gtk_widget_destroy (GTK_WIDGET (priv->history_window));
        priv->history_window = NULL;
    }

    if (priv->pdm_dialog != NULL)
    {
        LOG ("Unref PDM Dialog");
        g_object_unref (priv->pdm_dialog);
        priv->pdm_dialog = NULL;
    }

    if (priv->prefs_dialog != NULL)
    {
        LOG ("Unref prefs dialog");
        g_object_unref (priv->prefs_dialog);
        priv->prefs_dialog = NULL;
    }

    if (priv->print_setup_dialog != NULL)
    {
        LOG ("Unref print setup dialog");
        g_object_unref (priv->print_setup_dialog);
        priv->print_setup_dialog = NULL;
    }

    if (priv->bookmarks != NULL)
    {
        LOG ("Unref bookmarks");
        g_object_unref (priv->bookmarks);
        priv->bookmarks = NULL;
    }

    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
ephy_shell_finalize (GObject *object)
{
    G_OBJECT_CLASS (parent_class)->finalize (object);

    LOG ("Ephy shell finalised");
}

/**
 * ephy_shell_get_default:
 *
 * Retrieve the default #EphyShell object
 *
 * ReturnValue: the default #EphyShell
 **/
EphyShell *
ephy_shell_get_default (void)
{
   return ephy_shell;
}

EphyShell *
ephy_shell_new (void)
{
    return EPHY_SHELL (g_object_new (EPHY_TYPE_SHELL, NULL));
}

static gboolean
url_is_empty (const char *location)
{
    gboolean is_empty = FALSE;

        if (location == NULL || location[0] == '\0' ||
            strcmp (location, "about:blank") == 0)
        {
                is_empty = TRUE;
        }

        return is_empty;
}

static gboolean
load_homepage (EphyEmbed *embed)
{
    char *home;
    gboolean is_empty;

    home = eel_gconf_get_string(CONF_GENERAL_HOMEPAGE);

    if (home == NULL || home[0] == '\0')
    {
        g_free (home);

        home = g_strdup ("about:blank");
    }

    is_empty = url_is_empty (home);

    ephy_embed_load_url (embed, home);

    g_free (home);

    return is_empty;
}

/**
 * ephy_shell_new_tab_full:
 * @shell: a #EphyShell
 * @parent_window: the target #EphyWindow or %NULL
 * @previous_tab: the referrer tab or %NULL
 * @url: an url to load or %NULL
 * @chrome: a #EphyEmbedChrome mask to use if creating a new window
 * @is_popup: whether the new window is a popup
 * @user_time: a timestamp, or 0
 *
 * Create a new tab and the parent window when necessary.
 * Use this function to open urls in new window/tabs.
 *
 * ReturnValue: the created #EphyTab
 **/
EphyTab *
ephy_shell_new_tab_full (EphyShell *shell,
             EphyWindow *parent_window,
             EphyTab *previous_tab,
             const char *url,
             EphyNewTabFlags flags,
             EphyEmbedChrome chrome,
             gboolean is_popup,
             guint32 user_time)
{
    EphyWindow *window;
    EphyTab *tab;
    EphyEmbed *embed;
    gboolean in_new_window = TRUE;
    gboolean jump_to;
    EphyEmbed *previous_embed = NULL;
    GtkWidget *nb;
    int position = -1;
    gboolean is_empty = FALSE;
    EphyToolbar *toolbar;

    if (flags & EPHY_NEW_TAB_IN_NEW_WINDOW) in_new_window = TRUE;
    if (flags & EPHY_NEW_TAB_IN_EXISTING_WINDOW) in_new_window = FALSE;

    in_new_window = in_new_window && !eel_gconf_get_boolean (CONF_LOCKDOWN_FULLSCREEN);
    g_return_val_if_fail (in_new_window || !is_popup, NULL);

    jump_to = (flags & EPHY_NEW_TAB_JUMP) != 0;

    LOG ("Opening new tab parent-window %p parent-tab %p in-new-window:%s jump-to:%s",
         parent_window, previous_tab, in_new_window ? "t" : "f", jump_to ? "t" : "f");

    if (!in_new_window && parent_window != NULL)
    {
        window = parent_window;
    }
    else
    {
        window = ephy_window_new_with_chrome (chrome, is_popup);
    }

    toolbar = EPHY_TOOLBAR (ephy_window_get_toolbar (window));

    if (previous_tab != NULL)
    {
        previous_embed = ephy_tab_get_embed (previous_tab);
    }

    if ((flags & EPHY_NEW_TAB_APPEND_AFTER) && previous_tab != NULL)
    {
        nb = ephy_window_get_notebook (window);
        position = gtk_notebook_page_num (GTK_NOTEBOOK (nb),
                          GTK_WIDGET (previous_tab)) + 1;
    }

    tab = ephy_tab_new ();
    gtk_widget_show (GTK_WIDGET (tab));
    embed = ephy_tab_get_embed (tab);

    ephy_window_add_tab (window, tab, position, jump_to);

    ephy_gui_window_update_user_time (GTK_WIDGET (window), user_time);

    if ((flags & EPHY_NEW_TAB_DONT_SHOW_WINDOW) == 0)
    {
        gtk_widget_show (GTK_WIDGET (window));
    }

    if (flags & EPHY_NEW_TAB_FULLSCREEN_MODE)
    {
        gtk_window_fullscreen (GTK_WINDOW (window));
    }

    if (flags & EPHY_NEW_TAB_HOME_PAGE ||
        flags & EPHY_NEW_TAB_NEW_PAGE)
    {
        ephy_tab_set_typed_address (tab, "",
                        EPHY_TAB_ADDRESS_EXPIRE_NEXT);
        ephy_toolbar_activate_location (toolbar);
        is_empty = load_homepage (embed);
    }
    else if (flags & EPHY_NEW_TAB_OPEN_PAGE)
    {
        g_assert (url != NULL);
        ephy_embed_load_url (embed, url);
        is_empty = url_is_empty (url);
    }

        /* Make sure the initial focus is somewhere sensible and not, for
         * example, on the reload button.
         */
        if (in_new_window || jump_to)
        {
                /* If the location entry is blank, focus that, except if the
                 * page was a copy */
                if (is_empty)
                {
                        /* empty page, focus location entry */
            toolbar = EPHY_TOOLBAR (ephy_window_get_toolbar (window));
            ephy_toolbar_activate_location (toolbar);
                }
                else if (embed != NULL) 
                {
            /* non-empty page, focus the page. but make sure the widget is realised first! */
            gtk_widget_realize (GTK_WIDGET (embed));
            gtk_widget_grab_focus (GTK_WIDGET (embed));
                }
        }

    return tab;
}

/**
 * ephy_shell_new_tab:
 * @shell: a #EphyShell
 * @parent_window: the target #EphyWindow or %NULL
 * @previous_tab: the referrer tab or %NULL
 * @url: an url to load or %NULL
 *
 * Create a new tab and the parent window when necessary.
 * Use this function to open urls in new window/tabs.
 *
 * ReturnValue: the created #EphyTab
 **/
EphyTab *
ephy_shell_new_tab (EphyShell *shell,
            EphyWindow *parent_window,
            EphyTab *previous_tab,
            const char *url,
            EphyNewTabFlags flags)
{
    return ephy_shell_new_tab_full (shell, parent_window,
                    previous_tab, url, flags,
                    EPHY_EMBED_CHROME_ALL, FALSE, 0);
}

/**
 * ephy_shell_get_session:
 * @shell: the #EphyShell
 *
 * Returns current session.
 *
 * Return value: the current session.
 **/
GObject *
ephy_shell_get_session (EphyShell *shell)
{
    g_return_val_if_fail (EPHY_IS_SHELL (shell), NULL);

    if (shell->priv->session == NULL)
    {
        EphyExtensionsManager *manager;

        shell->priv->session = g_object_new (EPHY_TYPE_SESSION, NULL);

        manager = EPHY_EXTENSIONS_MANAGER
            (ephy_shell_get_extensions_manager (shell));
        ephy_extensions_manager_register (manager,
                          G_OBJECT (shell->priv->session));
    }

    return G_OBJECT (shell->priv->session);
}

/**
 * ephy_shell_get_lockdown:
 * @shell: the #EphyShell
 *
 * Returns the lockdown controller.
 *
 * Return value: the lockdown controller
 **/
static GObject *
ephy_shell_get_lockdown (EphyShell *shell)
{
    g_return_val_if_fail (EPHY_IS_SHELL (shell), NULL);

    if (shell->priv->lockdown == NULL)
    {
        EphyExtensionsManager *manager;

        shell->priv->lockdown = g_object_new (EPHY_TYPE_LOCKDOWN, NULL);

        manager = EPHY_EXTENSIONS_MANAGER
            (ephy_shell_get_extensions_manager (shell));
        ephy_extensions_manager_register (manager,
                          G_OBJECT (shell->priv->lockdown));
    }

    return G_OBJECT (shell->priv->session);
}

EphyBookmarks *
ephy_shell_get_bookmarks (EphyShell *shell)
{
    if (shell->priv->bookmarks == NULL)
    {
        shell->priv->bookmarks = ephy_bookmarks_new ();
    }

    return shell->priv->bookmarks;
}

GObject *
ephy_shell_get_toolbars_model (EphyShell *shell, gboolean fullscreen)
{
    LOG ("ephy_shell_get_toolbars_model fs=%d", fullscreen);

    if (fullscreen)
    {
        if (shell->priv->fs_toolbars_model == NULL)
        {
            gboolean success;
            const char *xml;

            shell->priv->fs_toolbars_model = egg_toolbars_model_new ();
            xml = ephy_file ("epiphany-fs-toolbar.xml");
            g_return_val_if_fail (xml != NULL, NULL);

            success = egg_toolbars_model_load
                (shell->priv->fs_toolbars_model, xml);
            g_return_val_if_fail (success, NULL);
        }

        return G_OBJECT (shell->priv->fs_toolbars_model);
    }
    else
    {
        if (shell->priv->toolbars_model == NULL)
        {
            EphyBookmarks *bookmarks;
            GObject *bookmarksbar_model;

            shell->priv->toolbars_model = ephy_toolbars_model_new ();

            /* get the bookmarks toolbars model. we have to do this
             * before loading the toolbars model from disk, since
             * this will connect the get_item_* signals
             */
            bookmarks = ephy_shell_get_bookmarks (shell);
            bookmarksbar_model = ephy_bookmarks_get_toolbars_model (bookmarks);

            /* ok, now we can load the model */
            ephy_toolbars_model_load
                (EPHY_TOOLBARS_MODEL (shell->priv->toolbars_model));
        }

        return G_OBJECT (shell->priv->toolbars_model);
    }
}

GObject *
ephy_shell_get_extensions_manager (EphyShell *es)
{
    g_return_val_if_fail (EPHY_IS_SHELL (es), NULL);

    if (es->priv->extensions_manager == NULL)
    {
        /* Instantiate extensions manager */
        es->priv->extensions_manager =
            g_object_new (EPHY_TYPE_EXTENSIONS_MANAGER, NULL);

        ephy_extensions_manager_startup (es->priv->extensions_manager);

        /* FIXME */
        ephy_shell_get_lockdown (es);
    }

    return G_OBJECT (es->priv->extensions_manager);
}

static void
toolwindow_show_cb (GtkWidget *widget, EphyShell *es)
{
    EphySession *session;

    LOG ("Ref shell for %s", G_OBJECT_TYPE_NAME (widget));

    session = EPHY_SESSION (ephy_shell_get_session (es));
    ephy_session_add_window (ephy_shell->priv->session, GTK_WINDOW (widget));
    g_object_ref (ephy_shell);
}

static void
toolwindow_hide_cb (GtkWidget *widget, EphyShell *es)
{
    EphySession *session;

    LOG ("Unref shell for %s", G_OBJECT_TYPE_NAME (widget));

    session = EPHY_SESSION (ephy_shell_get_session (es));
    ephy_session_remove_window (ephy_shell->priv->session, GTK_WINDOW (widget));
    g_object_unref (ephy_shell);
}

GtkWidget *
ephy_shell_get_bookmarks_editor (EphyShell *shell)
{
    EphyBookmarks *bookmarks;

    if (shell->priv->bme == NULL)
    {
        bookmarks = ephy_shell_get_bookmarks (ephy_shell);
        g_assert (bookmarks != NULL);
        shell->priv->bme = ephy_bookmarks_editor_new (bookmarks);

        g_signal_connect (shell->priv->bme, "show", 
                  G_CALLBACK (toolwindow_show_cb), shell);
        g_signal_connect (shell->priv->bme, "hide", 
                  G_CALLBACK (toolwindow_hide_cb), shell);
    }

    return shell->priv->bme;
}

GtkWidget *
ephy_shell_get_history_window (EphyShell *shell)
{
    EphyHistory *history;

    if (shell->priv->history_window == NULL)
    {
        history = EPHY_HISTORY
            (ephy_embed_shell_get_global_history (embed_shell));
        g_assert (history != NULL);
        shell->priv->history_window = ephy_history_window_new (history);

        g_signal_connect (shell->priv->history_window, "show",
                  G_CALLBACK (toolwindow_show_cb), shell);
        g_signal_connect (shell->priv->history_window, "hide",
                  G_CALLBACK (toolwindow_hide_cb), shell);
    }

    return shell->priv->history_window;
}

GObject *
ephy_shell_get_pdm_dialog (EphyShell *shell)
{
    if (shell->priv->pdm_dialog == NULL)
    {
        shell->priv->pdm_dialog = g_object_new (EPHY_TYPE_PDM_DIALOG, NULL);

        g_object_add_weak_pointer (shell->priv->pdm_dialog,
                       (gpointer *) &shell->priv->pdm_dialog);
    }

    return shell->priv->pdm_dialog;
}

GObject *
ephy_shell_get_prefs_dialog (EphyShell *shell)
{
    if (shell->priv->prefs_dialog == NULL)
    {
        shell->priv->prefs_dialog = g_object_new (EPHY_TYPE_PREFS_DIALOG, NULL);

        g_object_add_weak_pointer (shell->priv->prefs_dialog,
                       (gpointer *) &shell->priv->prefs_dialog);
    }

    return shell->priv->prefs_dialog;
}

GObject *
ephy_shell_get_print_setup_dialog (EphyShell *shell)
{
    if (shell->priv->print_setup_dialog == NULL)
    {
        shell->priv->print_setup_dialog = G_OBJECT (ephy_print_setup_dialog_new ());

        g_object_add_weak_pointer (shell->priv->print_setup_dialog,
                       (gpointer *) &shell->priv->print_setup_dialog);
    }

    return shell->priv->print_setup_dialog;
}

#ifdef ENABLE_DBUS
GObject *
ephy_shell_get_dbus_service (EphyShell *shell)
{
    g_return_val_if_fail (EPHY_IS_SHELL (shell), NULL);

    if (shell->priv->dbus_service == NULL)
    {
        shell->priv->dbus_service = g_object_new (EPHY_TYPE_DBUS, NULL);
        ephy_dbus_startup (EPHY_DBUS (shell->priv->dbus_service));
    }

    return G_OBJECT (shell->priv->dbus_service);
}
#endif