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-ui.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 "print-dialog.h"
#include "ephy-prefs.h"
#include "ephy-gui.h"

#include <string.h>
#include <glib/gi18n.h>
#include <gtk/gtknotebook.h>
#include <dirent.h>
#include <unistd.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
{
    EphySession *session;
    GObject *lockdown;
    EphyBookmarks *bookmarks;
    EggToolbarsModel *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;
    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;

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 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);
}

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

    LOG ("EphyShell disposing");

    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;
    }

    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;
}

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)
        {
            shell->priv->toolbars_model = ephy_toolbars_model_new ();
            
            ephy_bookmarks_ui_attach_toolbar_model (shell->priv->toolbars_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);
        ephy_embed_shell_get_adblock_manager (embed_shell);
    }

    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;
}

void
_ephy_shell_create_instance (void)
{
    g_assert (ephy_shell == NULL);

    ephy_shell = EPHY_SHELL (g_object_new (EPHY_TYPE_SHELL, NULL));
    /* FIXME weak ref */

    g_assert (ephy_shell != NULL);
}