path: root/src/ephy-shell.c

/*
 *  Copyright (C) 2000-2003 Marco Pesenti Gritti
 *
 *  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.
 *
 *  $Id$
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "ephy-shell.h"
#include "ephy-embed-shell.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 "toolbar.h"
#include "ephy-session.h"
#include "downloader-view.h"
#include "ephy-toolbars-model.h"
#include "ephy-automation.h"
#include "print-dialog.h"

#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 <dirent.h>
#include <unistd.h>
#include <libgnomeui/gnome-client.h>

#ifdef ENABLE_NAUTILUS_VIEW
#include <bonobo/bonobo-generic-factory.h>
#include "ephy-nautilus-view.h"
#endif

#define EPHY_NAUTILUS_VIEW_IID "OAFIID:GNOME_Epiphany_NautilusView"
#define AUTOMATION_IID "OAFIID:GNOME_Epiphany_Automation"
#define SERVER_TIMEOUT 60000

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

struct EphyShellPrivate
{
    BonoboGenericFactory *automation_factory;
    EphySession *session;
    EphyBookmarks *bookmarks;
    EphyToolbarsModel *toolbars_model;
    EggToolbarsModel *fs_toolbars_model;
    EphyExtensionsManager *extensions_manager;
    GtkWidget *bme;
    GtkWidget *history_window;
    GObject *pdm_dialog;
    GObject *prefs_dialog;
    GObject *print_setup_dialog;
    GList *del_on_exit;
    guint server_timeout;
};

EphyShell *ephy_shell = NULL;

static void ephy_shell_class_init   (EphyShellClass *klass);
static void ephy_shell_init     (EphyShell *shell);
static void ephy_shell_finalize     (GObject *object);

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 (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);

    parent_class = g_type_class_peek_parent (klass);

    object_class->finalize = ephy_shell_finalize;

    g_type_class_add_private (object_class, sizeof(EphyShellPrivate));
}

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));
    }
#ifdef ENABLE_NAUTILUS_VIEW
    else if (strcmp (iid, EPHY_NAUTILUS_VIEW_IID) == 0)
    {
        return BONOBO_OBJECT (ephy_nautilus_view_new_component (shell));
    }
#endif

    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);

    shell->priv->session = NULL;
    shell->priv->bookmarks = NULL;
    shell->priv->bme = NULL;
    shell->priv->history_window = NULL;
    shell->priv->pdm_dialog = NULL;
    shell->priv->print_setup_dialog = NULL;
    shell->priv->toolbars_model = NULL;
    shell->priv->fs_toolbars_model = NULL;
    shell->priv->extensions_manager = NULL;
    shell->priv->server_timeout = 0;

    /* 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,
       const char **args, CORBA_Environment *ev,
       gboolean new_tab, gboolean existing_window,
       gboolean fullscreen)
{
    int i;

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

            path = path_from_command_line_arg (args[i]);

            GNOME_EphyAutomation_loadurl
                (automation, path, fullscreen,
                 existing_window, new_tab, ev);

            g_free (path);
        }
    }
}

static gboolean
server_timeout (EphyShell *shell)
{
    g_object_unref (shell);

    return FALSE;
}

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

    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[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;

    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 (G_OBJECT (client),
              "save_yourself",
              G_CALLBACK (save_yourself_cb),
              shell);
    g_signal_connect (G_OBJECT (client),
              "die",
              G_CALLBACK (die_cb),
              shell);
}

gboolean
ephy_shell_startup (EphyShell *shell,
            EphyShellStartupFlags flags,
            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 (flags & EPHY_SHELL_STARTUP_SERVER)
    {
        g_object_ref (shell);
        shell->priv->server_timeout = g_timeout_add
            (SERVER_TIMEOUT, (GSourceFunc)server_timeout, shell);
    }
    else 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;
        }
        else if (flags & EPHY_SHELL_STARTUP_BOOKMARKS_EDITOR)
        {
            GNOME_EphyAutomation_openBookmarksEditor
                (automation, &ev);
        }
        else if (flags & EPHY_SHELL_STARTUP_SESSION)
        {
            GNOME_EphyAutomation_loadSession
                (automation, string_arg, &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, args, &ev,
                   flags & EPHY_SHELL_STARTUP_TABS,
                   flags & EPHY_SHELL_STARTUP_EXISTING_WINDOW,
                   flags & EPHY_SHELL_STARTUP_FULLSCREEN);
        }

        if (automation)
        {
            bonobo_object_release_unref (automation, &ev);
        }

        gnome_session_init (shell);
    }

    CORBA_exception_free (&ev);
    gdk_notify_startup_complete ();

    return !(result == Bonobo_ACTIVATION_REG_ALREADY_ACTIVE);
}

static void
delete_files (GList *l)
{
    for (; l != NULL; l = l->next)
    {
        unlink (l->data);
    }
}

static void
ephy_shell_finalize (GObject *object)
{
    EphyShell *shell = EPHY_SHELL (object);

    g_assert (ephy_shell == NULL);

    if (shell->priv->server_timeout > 0)
    {
        g_source_remove (shell->priv->server_timeout);
    }

    /* this will unload the extensions */
    LOG ("Unref extension manager")
    g_object_unref (shell->priv->extensions_manager);

    delete_files (shell->priv->del_on_exit);
    g_list_foreach (shell->priv->del_on_exit, (GFunc)g_free, NULL);
    g_list_free (shell->priv->del_on_exit);

    LOG ("Unref toolbars model")
    if (shell->priv->toolbars_model)
    {
        g_object_unref (G_OBJECT (shell->priv->toolbars_model));
    }

    LOG ("Unref fullscreen toolbars model")
    if (shell->priv->fs_toolbars_model)
    {
        g_object_unref (G_OBJECT (shell->priv->fs_toolbars_model));
    }

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

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

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

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

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

    LOG ("Unref bookmarks")
    if (shell->priv->bookmarks)
    {
        g_object_unref (shell->priv->bookmarks);
    }

    G_OBJECT_CLASS (parent_class)->finalize (object);

    if (shell->priv->automation_factory)
    {
        bonobo_activation_unregister_active_server
            (AUTOMATION_FACTORY_IID, BONOBO_OBJREF (shell->priv->automation_factory));

        bonobo_object_unref (shell->priv->automation_factory);
    }

    LOG ("Ephy shell finalized")
}

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

static void
load_homepage (EphyEmbed *embed)
{
    char *home;

    home = eel_gconf_get_string(CONF_GENERAL_HOMEPAGE);

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

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

    ephy_embed_load_url (embed, home);

    g_free (home);
}

/**
 * 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.
 * Ever 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)
{
    EphyWindow *window;
    EphyTab *tab;
    EphyEmbed *embed;
    gboolean in_new_window = TRUE;
    gboolean grouped;
    gboolean jump_to;
    EphyEmbed *previous_embed = NULL;
    GtkWidget *nb;
    gint position;
    Toolbar *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;

    jump_to = (flags & EPHY_NEW_TAB_JUMP);

    if (!in_new_window && parent_window != NULL)
    {
        window = parent_window;
    }
    else
    {
        window = ephy_window_new ();
    }

    toolbar = EPHY_TOOLBAR (ephy_window_get_toolbar (window));

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

    grouped = ((flags & EPHY_NEW_TAB_OPEN_PAGE ||
            flags & EPHY_NEW_TAB_APPEND_GROUPED)) &&
          !(flags & EPHY_NEW_TAB_APPEND_LAST);

    if ((flags & EPHY_NEW_TAB_APPEND_AFTER) && previous_embed != NULL)
    {
        nb = ephy_window_get_notebook (window);
        position = gtk_notebook_page_num (GTK_NOTEBOOK (nb),
                          GTK_WIDGET (previous_embed)) + 1;
    }
    else
    {
        position = grouped ? EPHY_NOTEBOOK_INSERT_GROUPED : EPHY_NOTEBOOK_INSERT_LAST;
    }

    tab = ephy_tab_new ();
    embed = ephy_tab_get_embed (tab);
    gtk_widget_show (GTK_WIDGET(embed));
    ephy_window_add_tab (window, tab,
                 position,
                 jump_to);
    gtk_widget_show (GTK_WIDGET(window));

    if (flags & EPHY_NEW_TAB_HOME_PAGE ||
        flags & EPHY_NEW_TAB_NEW_PAGE)
    {
        ephy_tab_set_location (tab, "", TAB_ADDRESS_EXPIRE_NEXT);
        toolbar_activate_location (toolbar);
        load_homepage (embed);
    }
    else if (flags & EPHY_NEW_TAB_OPEN_PAGE)
    {
        g_assert (url != NULL);
        ephy_embed_load_url (embed, url);
    }

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

    return tab;
}

/**
 * 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;

        manager = EPHY_EXTENSIONS_MANAGER
            (ephy_shell_get_extensions_manager (shell));

        /* Instantiate internal extensions */
        shell->priv->session =
            EPHY_SESSION (ephy_extensions_manager_add
                (manager, EPHY_TYPE_SESSION));
    }

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

            shell->priv->fs_toolbars_model = egg_toolbars_model_new ();
            xml = ephy_file ("epiphany-fs-toolbar.xml");
            egg_toolbars_model_load (shell->priv->fs_toolbars_model, xml);
        }

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

            bookmarks = ephy_shell_get_bookmarks (shell);

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

            g_object_set (bookmarks, "toolbars_model",
                      shell->priv->toolbars_model, NULL);
        }


        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; this will load the extensions */
        es->priv->extensions_manager = ephy_extensions_manager_new ();
    }

    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_embed_shell_get_global_history
            (EPHY_EMBED_SHELL (ephy_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;
}

void
ephy_shell_delete_on_exit (EphyShell *shell, const char *path)
{
    shell->priv->del_on_exit = g_list_append (shell->priv->del_on_exit,
                          g_strdup (path));
}