path: root/src/ephy-tab.c

/*
 *  Copyright (C) 2000, 2001, 2002 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.
 */

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

#include "ephy-tab.h"
#include "ephy-shell.h"
#include "eel-gconf-extensions.h"
#include "ephy-prefs.h"
#include "ephy-embed-prefs.h"
#include "ephy-debug.h"
#include "egg-menu-merge.h"

#include <bonobo/bonobo-i18n.h>
#include <libgnomevfs/gnome-vfs-uri.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkbutton.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkmisc.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtkimage.h>
#include <gtk/gtkiconfactory.h>
#include <gtk/gtkstyle.h>
#include <gtk/gtkselection.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkmenu.h>
#include <string.h>

struct EphyTabPrivate
{
    EphyEmbed *embed;
    EphyWindow *window;
    EphyEmbedEvent *event;
    gboolean is_active;
    TabLoadStatus load_status;
    char status_message[255];
    char link_message[255];
    char favicon_url[255];
    char *title;
    char *location;
    int load_percent;
    gboolean visibility;
    int cur_requests;
    int total_requests;
    int width;
    int height;
};

static void
ephy_tab_class_init (EphyTabClass *klass);
static void
ephy_tab_init (EphyTab *tab);
static void
ephy_tab_finalize (GObject *object);

enum
{
    PROP_0,
    PROP_EPHY_SHELL
};

static void
ephy_tab_favicon_cb (EphyEmbed *embed,
             const char *url,
             EphyTab *tab);
static void
ephy_tab_link_message_cb (EphyEmbed *embed,
              const char *message,
              EphyTab *tab);
static void
ephy_tab_location_cb (EphyEmbed *embed, EphyTab *tab);
static void
ephy_tab_title_cb (EphyEmbed *embed, EphyTab *tab);
static void
ephy_tab_net_state_cb (EphyEmbed *embed, const char *uri,
               EmbedState state, EphyTab *tab);
static void
ephy_tab_new_window_cb (EphyEmbed *embed, EphyEmbed **new_embed,
            EmbedChromeMask chromemask, EphyTab *tab);
static void
ephy_tab_visibility_cb (EphyEmbed *embed, gboolean visibility,
            EphyTab *tab);
static void
ephy_tab_destroy_brsr_cb (EphyEmbed *embed, EphyTab *tab);
static gint
ephy_tab_open_uri_cb (EphyEmbed *embed, const char *uri,
              EphyTab *tab);
static void
ephy_tab_size_to_cb (EphyEmbed *embed, gint width, gint height,
             EphyTab *tab);
static gint
ephy_tab_dom_mouse_click_cb (EphyEmbed *embed,
                 EphyEmbedEvent *event,
                 EphyTab *tab);
static gint
ephy_tab_dom_mouse_down_cb (EphyEmbed *embed,
                EphyEmbedEvent *event,
                EphyTab *tab);
static void
ephy_tab_security_change_cb (EphyEmbed *embed, EmbedSecurityLevel level,
                 EphyTab *tab);
static void
ephy_tab_zoom_changed_cb (EphyEmbed *embed, gint zoom,
              EphyTab *tab);

static GObjectClass *parent_class = NULL;

/* Class functions */

GType
ephy_tab_get_type (void)
{
        static GType ephy_tab_type = 0;

        if (ephy_tab_type == 0)
        {
                static const GTypeInfo our_info =
                {
                        sizeof (EphyTabClass),
                        NULL, /* base_init */
                        NULL, /* base_finalize */
                        (GClassInitFunc) ephy_tab_class_init,
                        NULL,
                        NULL, /* class_data */
                        sizeof (EphyTab),
                        0, /* n_preallocs */
                        (GInstanceInitFunc) ephy_tab_init
                };

                ephy_tab_type = g_type_register_static (G_TYPE_OBJECT,
                              "EphyTab",
                              &our_info, 0);
        }

        return ephy_tab_type;
}

static void
ephy_tab_class_init (EphyTabClass *klass)
{
        GObjectClass *object_class = G_OBJECT_CLASS (klass);

        parent_class = g_type_class_peek_parent (klass);

        object_class->finalize = ephy_tab_finalize;
}

static void
ephy_tab_parent_set_cb (GtkWidget *widget, GtkWidget *previous_parent,
            EphyTab *tab)
{
    GtkWidget *toplevel;

    /* FIXME maybe we dont need to set the tab parent explicitly
     * anymore with this callback taking care of it */

    if (widget->parent == NULL) return;

    toplevel = gtk_widget_get_toplevel (widget);

    tab->priv->window = EPHY_WINDOW (toplevel);
}

static void
ephy_tab_embed_destroy_cb (GtkWidget *widget, EphyTab *tab)
{
    LOG ("GtkMozEmbed destroy signal on EphyTab")
    g_object_unref (tab);
}

static void
ephy_tab_init (EphyTab *tab)
{
    GObject *embed, *embed_widget;
    EphyEmbedSingle *single;

    single = ephy_embed_shell_get_embed_single
        (EPHY_EMBED_SHELL (ephy_shell));

        tab->priv = g_new0 (EphyTabPrivate, 1);

    tab->priv->embed = ephy_embed_new (G_OBJECT(single));

    tab->priv->window = NULL;
    tab->priv->event = NULL;
    tab->priv->is_active = FALSE;
    *tab->priv->status_message = '\0';
    *tab->priv->link_message = '\0';
    *tab->priv->favicon_url = '\0';
    tab->priv->load_status = TAB_LOAD_NONE;
    tab->priv->load_percent = 0;
    tab->priv->title = NULL;
    tab->priv->location = NULL;
    tab->priv->total_requests = 0;
    tab->priv->cur_requests = 0;
    tab->priv->width = -1;
    tab->priv->height = -1;


    embed = G_OBJECT (tab->priv->embed);
    embed_widget = G_OBJECT (tab->priv->embed);

    /* set a pointer in the embed's widget back to the tab */
    g_object_set_data (embed_widget, "EphyTab", tab);

    g_signal_connect (embed_widget, "parent_set",
              G_CALLBACK (ephy_tab_parent_set_cb),
              tab);
    g_signal_connect (embed_widget, "destroy",
              GTK_SIGNAL_FUNC (ephy_tab_embed_destroy_cb),
              tab);
    g_signal_connect (embed, "ge_link_message",
              GTK_SIGNAL_FUNC (ephy_tab_link_message_cb),
              tab);
    g_signal_connect (embed, "ge_location",
              GTK_SIGNAL_FUNC (ephy_tab_location_cb),
              tab);
    g_signal_connect (embed, "ge_title",
              GTK_SIGNAL_FUNC (ephy_tab_title_cb),
              tab);
    g_signal_connect (embed, "ge_zoom_change",
              GTK_SIGNAL_FUNC (ephy_tab_zoom_changed_cb),
              tab);
    g_signal_connect (embed, "ge_net_state",
              GTK_SIGNAL_FUNC (ephy_tab_net_state_cb),
              tab);
    g_signal_connect (embed, "ge_new_window",
              GTK_SIGNAL_FUNC (ephy_tab_new_window_cb),
              tab);
    g_signal_connect (embed, "ge_visibility",
              GTK_SIGNAL_FUNC (ephy_tab_visibility_cb),
              tab);
    g_signal_connect (embed, "ge_destroy_brsr",
              GTK_SIGNAL_FUNC (ephy_tab_destroy_brsr_cb),
              tab);
    g_signal_connect (embed, "ge_open_uri",
              GTK_SIGNAL_FUNC (ephy_tab_open_uri_cb),
              tab);
    g_signal_connect (embed, "ge_size_to",
              GTK_SIGNAL_FUNC (ephy_tab_size_to_cb),
              tab);
    g_signal_connect (embed, "ge_dom_mouse_click",
              GTK_SIGNAL_FUNC (ephy_tab_dom_mouse_click_cb),
              tab);
    g_signal_connect (embed, "ge_dom_mouse_down",
              GTK_SIGNAL_FUNC (ephy_tab_dom_mouse_down_cb),
              tab);
    g_signal_connect (embed, "ge_security_change",
              GTK_SIGNAL_FUNC (ephy_tab_security_change_cb),
              tab);
    g_signal_connect (embed, "ge_favicon",
              GTK_SIGNAL_FUNC (ephy_tab_favicon_cb),
              tab);
}

/* Destructor */

static void
ephy_tab_finalize (GObject *object)
{
        EphyTab *tab;

    g_return_if_fail (IS_EPHY_TAB (object));

    tab = EPHY_TAB (object);

        g_return_if_fail (tab->priv != NULL);

    g_idle_remove_by_data (tab->priv->embed);

    if (tab->priv->event)
    {
        g_object_unref (tab->priv->event);
    }

    g_free (tab->priv->location);

        g_free (tab->priv);

    G_OBJECT_CLASS (parent_class)->finalize (object);

    LOG ("EphyTab finalized %p", tab)
}

/* Public functions */

EphyTab *
ephy_tab_new ()
{
    EphyTab *tab;

    tab = EPHY_TAB (g_object_new (EPHY_TAB_TYPE, NULL));
    g_return_val_if_fail (tab->priv != NULL, NULL);
    return tab;
}

static void
ephy_tab_set_load_status (EphyTab *tab,
                TabLoadStatus status)
{
    if (status == TAB_LOAD_COMPLETED)
    {
        Session *s;
        s = ephy_shell_get_session (ephy_shell);
        session_save (s, SESSION_CRASHED);
    }

    if (ephy_tab_get_is_active (tab) &&
        status == TAB_LOAD_COMPLETED)
    {
        tab->priv->load_status = TAB_LOAD_NONE;
    }
    else
    {
        tab->priv->load_status = status;
    }
}

EphyEmbed *
ephy_tab_get_embed (EphyTab *tab)
{
    g_return_val_if_fail (IS_EPHY_TAB (G_OBJECT (tab)), NULL);

    return tab->priv->embed;
}

void
ephy_tab_set_window (EphyTab *tab, EphyWindow *window)
{
    g_return_if_fail (IS_EPHY_TAB (G_OBJECT (tab)));
    if (window) g_return_if_fail (IS_EPHY_WINDOW (G_OBJECT (window)));

    tab->priv->window = window;
}

EphyWindow *
ephy_tab_get_window (EphyTab *tab)
{
    g_return_val_if_fail (IS_EPHY_TAB (G_OBJECT (tab)), NULL);

    return tab->priv->window;
}

EphyEmbedEvent *
ephy_tab_get_event (EphyTab *tab)
{
    return tab->priv->event;
}

static void
ephy_tab_update_color (EphyTab *tab)
{
    TabLoadStatus status = ephy_tab_get_load_status (tab);
    EphyNotebookPageLoadStatus page_status = 0;
    GtkWidget *nb;

    nb = ephy_window_get_notebook (tab->priv->window);

    switch (status)
    {
        case TAB_LOAD_NONE:
            page_status = EPHY_NOTEBOOK_TAB_LOAD_NORMAL;
        break;
        case TAB_LOAD_STARTED:
            page_status = EPHY_NOTEBOOK_TAB_LOAD_LOADING;
        break;
        case TAB_LOAD_COMPLETED:
            page_status = EPHY_NOTEBOOK_TAB_LOAD_COMPLETED;
            break;
    }

    ephy_notebook_set_page_status (EPHY_NOTEBOOK (nb),
                      GTK_WIDGET (tab->priv->embed),
                      page_status);
}

void
ephy_tab_set_is_active (EphyTab *tab, gboolean is_active)
{
    TabLoadStatus status;

    g_return_if_fail (IS_EPHY_TAB (G_OBJECT (tab)));

    tab->priv->is_active = is_active;

    status = ephy_tab_get_load_status (tab);
    if (status == TAB_LOAD_COMPLETED)
    {
        ephy_tab_set_load_status (tab, TAB_LOAD_NONE);
    }
    ephy_tab_update_color (tab);
}

gboolean
ephy_tab_get_is_active (EphyTab *tab)
{
    g_return_val_if_fail (IS_EPHY_TAB (G_OBJECT (tab)), FALSE);

    return tab->priv->is_active;
}

gboolean
ephy_tab_get_visibility (EphyTab *tab)
{
    return tab->priv->visibility;
}

void
ephy_tab_get_size (EphyTab *tab, int *width, int *height)
{
    *width = tab->priv->width;
    *height = tab->priv->height;
}

static void
ephy_tab_set_visibility (EphyTab *tab,
                           gboolean visible)
{
    g_return_if_fail (tab->priv->window != NULL);

    /* FIXME show/hide the tab widget */

    tab->priv->visibility = visible;
}

/* Private callbacks for embed signals */

static void
ephy_tab_favicon_cb (EphyEmbed *embed,
             const char *url,
             EphyTab *tab)
{
    EphyBookmarks *eb;

    g_strlcpy (tab->priv->favicon_url,
           url, 255);

    if (!tab->priv->is_active) return;

    eb = ephy_shell_get_bookmarks (ephy_shell);
    ephy_bookmarks_set_icon (eb, tab->priv->location,
                     tab->priv->favicon_url);
    ephy_window_update_control (tab->priv->window,
                    FaviconControl);
}

static void
ephy_tab_link_message_cb (EphyEmbed *embed,
              const char *message,
              EphyTab *tab)
{
    if (!tab->priv->is_active) return;

    g_strlcpy (tab->priv->link_message,
           message, 255);

    ephy_window_update_control (tab->priv->window,
                    StatusbarMessageControl);
}

static void
ephy_tab_location_cb (EphyEmbed *embed, EphyTab *tab)
{
    if (tab->priv->location) g_free (tab->priv->location);
    ephy_embed_get_location (embed, TRUE,
                 &tab->priv->location);
    tab->priv->link_message[0] = '\0';
    tab->priv->favicon_url[0] = '\0';

    if (tab->priv->is_active)
    {
        ephy_window_update_control (tab->priv->window, LocationControl);
        ephy_window_update_control (tab->priv->window, NavControl);
        ephy_window_update_control (tab->priv->window, FaviconControl);
    }
}

static void
ephy_tab_zoom_changed_cb (EphyEmbed *embed, gint zoom, EphyTab *tab)
{
    if (tab->priv->is_active)
    {
        ephy_window_update_control (tab->priv->window, ZoomControl);
    }
}

static void
ephy_tab_set_title (EphyTab *tab, const char *title)
{
    GtkWidget *nb;

    nb = ephy_window_get_notebook (tab->priv->window);
    ephy_notebook_set_page_title (EPHY_NOTEBOOK (nb),
                      GTK_WIDGET (tab->priv->embed),
                      title);
}

static void
ephy_tab_title_cb (EphyEmbed *embed, EphyTab *tab)
{
    if (tab->priv->title) g_free (tab->priv->title);
    ephy_embed_get_title (embed, &tab->priv->title);

    if (*(tab->priv->title) == '\0')
    {
        g_free (tab->priv->title);
        tab->priv->title = g_strdup (_("Untitled"));
    }

    ephy_tab_set_title (tab, tab->priv->title);

    if (tab->priv->is_active)
    {
        ephy_window_update_control (tab->priv->window,
                        TitleControl);
    }
}

static int
build_load_percent (int bytes_loaded, int max_bytes_loaded)
{
    if (max_bytes_loaded > 0)
    {
        return (bytes_loaded * 100) / max_bytes_loaded;
    }
    else
    {
        return -1;
    }
}

static char *
get_host_name_from_uri (const char *uri)
{
    GnomeVFSURI *vfs_uri = NULL;
    const char *host = NULL;
    char *result;

    if (uri)
    {
        vfs_uri = gnome_vfs_uri_new (uri);
    }

    if (vfs_uri)
    {
        host = gnome_vfs_uri_get_host_name (vfs_uri);
    }

    if (!host)
    {
        host = _("site");
    }

    result = g_strdup (host);

    if (vfs_uri) gnome_vfs_uri_unref (vfs_uri);

    return result;
}

static void
build_net_state_message (char *message,
             const char *uri,
             EmbedState flags)
{
    const char *msg = NULL;
    char *host;

    host = get_host_name_from_uri (uri);

    /* IS_REQUEST and IS_NETWORK can be both set */

    if (flags & EMBED_STATE_IS_REQUEST)
        {
                if (flags & EMBED_STATE_REDIRECTING)
                {
            msg = _("Redirecting to %s...");
                }
                else if (flags & EMBED_STATE_TRANSFERRING)
                {
            msg = _("Transferring data from %s...");
                }
                else if (flags & EMBED_STATE_NEGOTIATING)
                {
            msg = _("Waiting for authorization from %s...");
                }
        }

    if (flags & EMBED_STATE_IS_NETWORK)
        {
                if (flags & EMBED_STATE_START)
                {
                        msg = _("Loading %s...");
                }
                else if (flags & EMBED_STATE_STOP)
                {
            msg = _("Done.");
                }
        }

    if (msg)
    {
        g_snprintf (message, 255, msg, host);
    }

    g_free (host);
}

static void
build_progress_from_requests (EphyTab *tab, EmbedState state)
{
    int load_percent;

    if (state & EMBED_STATE_IS_REQUEST)
        {
                if (state & EMBED_STATE_START)
                {
            tab->priv->total_requests ++;
        }
        else if (state & EMBED_STATE_STOP)
        {
            tab->priv->cur_requests ++;
        }

        load_percent = build_load_percent (tab->priv->cur_requests,
                           tab->priv->total_requests);
        if (load_percent > tab->priv->load_percent)
        {
            tab->priv->load_percent = load_percent;
        }
    }
}

static void
ensure_location (EphyTab *tab, const char *uri)
{
    if (tab->priv->location == NULL)
    {
        tab->priv->location = g_strdup (uri);
        ephy_window_update_control (tab->priv->window,
                          LocationControl);
    }
}

static void
ephy_tab_net_state_cb (EphyEmbed *embed, const char *uri,
             EmbedState state, EphyTab *tab)
{
    build_net_state_message (tab->priv->status_message, uri, state);

    ephy_window_update_control (tab->priv->window,
                      StatusbarMessageControl);

    if (state & EMBED_STATE_IS_NETWORK)
    {
        if (state & EMBED_STATE_START)
        {
            tab->priv->total_requests = 0;
            tab->priv->cur_requests = 0;
            tab->priv->load_percent = 0;

            ensure_location (tab, uri);

            ephy_tab_set_load_status (tab, TAB_LOAD_STARTED);

            ephy_window_update_control (tab->priv->window,
                              NavControl);
            ephy_window_update_control (tab->priv->window,
                              SpinnerControl);
            ephy_tab_update_color (tab);
        }
        else if (state & EMBED_STATE_STOP)
        {
            tab->priv->load_percent = 0;

            ephy_tab_set_load_status (tab, TAB_LOAD_COMPLETED);

            ephy_window_update_control (tab->priv->window,
                              NavControl);
            ephy_window_update_control (tab->priv->window,
                              SpinnerControl);
            ephy_tab_update_color (tab);
        }
    }

    build_progress_from_requests (tab, state);

    ephy_window_update_control (tab->priv->window,
                      StatusbarProgressControl);
}

static void
ephy_tab_new_window_cb (EphyEmbed *embed, EphyEmbed **new_embed,
              EmbedChromeMask chromemask, EphyTab *tab)
{
    EphyTab *new_tab;
    EphyWindow *window;
    gboolean open_in_tab;

    open_in_tab = (chromemask & EMBED_CHROME_OPENASCHROME) ?
              FALSE :
              eel_gconf_get_boolean (CONF_TABS_TABBED_POPUPS);

    if (open_in_tab)
    {
        window = ephy_tab_get_window (tab);
    }
    else
    {
        window = ephy_window_new ();
        ephy_window_set_chrome (window, chromemask);
    }

    new_tab = ephy_tab_new ();
        ephy_window_add_tab (window, new_tab, FALSE);

    *new_embed = ephy_tab_get_embed (new_tab);
}

static gboolean
let_me_resize_hack (gpointer data)
{
    gtk_widget_set_size_request (GTK_WIDGET(data),
                     -1, -1);
    return FALSE;
}

static void
ephy_tab_visibility_cb (EphyEmbed *embed, gboolean visibility,
              EphyTab *tab)
{
    EphyWindow *window;

    if (visibility)
    {
        gtk_widget_show (GTK_WIDGET(embed));
    }
    else
    {
        gtk_widget_hide (GTK_WIDGET(embed));
    }

    ephy_tab_set_visibility (tab, visibility);

    window = ephy_tab_get_window (tab);
    g_return_if_fail (window != NULL);

    ephy_window_update_control (window, WindowVisibilityControl);
}

static void
ephy_tab_destroy_brsr_cb (EphyEmbed *embed, EphyTab *tab)
{
    EphyWindow *window;

    window = ephy_tab_get_window (tab);

    ephy_window_remove_tab (window, tab);
}

static gint
ephy_tab_open_uri_cb (EphyEmbed *embed, const char *uri,
            EphyTab *tab)
{
    return FALSE;
}

static void
ephy_tab_size_to_cb (EphyEmbed *embed, gint width, gint height,
               EphyTab *tab)
{
    GList *tabs;
    EphyWindow *window;
    GtkWidget *widget;
    EmbedChromeMask chromemask;

    tab->priv->width = width;
    tab->priv->height = height;

    window = ephy_tab_get_window (tab);
    tabs = (GList *) ephy_window_get_tabs (window);
    widget = GTK_WIDGET (embed);
    chromemask = ephy_window_get_chrome (window);

    /* Do not resize window with multiple tabs.
     * Do not resize window already showed because
     * it's not possible to calculate a sensible window
     * size based on the embed size */
    if (g_list_length (tabs) == 1 && !tab->priv->visibility)
    {
        gtk_widget_set_size_request
            (widget, width, height);

        /* HACK reset widget requisition after the container
         * has been resized. It appears to be the only way
         * to have the window sized according to embed
         * size correctly.
         * We dont do it for XUL dialogs because in that case
         * a "forced" requisition appear correct.
         */
        if (!(chromemask & EMBED_CHROME_OPENASCHROME))
        {
            g_idle_add (let_me_resize_hack, embed);
        }
    }
}

static gint
ephy_tab_dom_mouse_click_cb (EphyEmbed *embed,
                   EphyEmbedEvent *event,
                   EphyTab *tab)
{
    return FALSE;
}

static void
ephy_tab_set_event (EphyTab *tab,
            EphyEmbedEvent *event)
{
    if (tab->priv->event) g_object_unref (tab->priv->event);
    g_object_ref (event);
    tab->priv->event = event;
}

static void
ephy_tab_show_embed_popup (EphyTab *tab, EphyEmbedEvent *event)
{
    EmbedEventContext context;
    const char *popup;
    const GValue *value;
    gboolean framed;
    EphyWindow *window;
    char *path;
    GtkWidget *widget;

    window = ephy_tab_get_window (tab);

    ephy_embed_event_get_property (event, "framed_page", &value);
    framed = g_value_get_int (value);

    ephy_embed_event_get_context (event, &context);

    if ((context & EMBED_CONTEXT_LINK) &&
        (context & EMBED_CONTEXT_IMAGE))
    {
        popup = "EphyImageLinkPopup";
    }
    else if (context & EMBED_CONTEXT_LINK)
    {
        popup = "EphyLinkPopup";
    }
    else if (context & EMBED_CONTEXT_IMAGE)
    {
        popup = "EphyImagePopup";
    }
    else if (context & EMBED_CONTEXT_INPUT)
    {
        popup = "EphyInputPopup";
    }
    else
    {
        popup = framed ? "EphyFramedDocumentPopup" :
                 "EphyDocumentPopup";
    }

    path = g_strconcat ("/popups/", popup, NULL);
    widget = egg_menu_merge_get_widget (EGG_MENU_MERGE (window->ui_merge),
                            path);
    g_free (path);

    g_return_if_fail (widget != NULL);

    ephy_tab_set_event (tab, event);
    gtk_menu_popup (GTK_MENU (widget), NULL, NULL, NULL, NULL, 2,
            gtk_get_current_event_time ());
}

static gint
ephy_tab_dom_mouse_down_cb  (EphyEmbed *embed,
                 EphyEmbedEvent *event,
                 EphyTab *tab)
{
    EphyWindow *window;
    int button;
    EmbedEventContext context;

    g_assert (IS_EPHY_EMBED_EVENT(event));

    window = ephy_tab_get_window (tab);
    g_return_val_if_fail (window != NULL, FALSE);

    ephy_embed_event_get_mouse_button (event, &button);
    ephy_embed_event_get_context (event, &context);

    if (button == 2)
    {
        ephy_tab_show_embed_popup (tab, event);
    }
    else if (button == 1
         && (context & EMBED_CONTEXT_LINK))
    {
        const GValue *value;

        ephy_embed_event_get_property (event, "link", &value);
        ephy_shell_new_tab (ephy_shell, window, tab,
                      g_value_get_string (value), 0);
    }
    else if (button == 1
        && !(context & EMBED_CONTEXT_LINK
             || context & EMBED_CONTEXT_EMAIL_LINK
             || context & EMBED_CONTEXT_INPUT))
    {
        /* paste url */
        gtk_selection_convert (GTK_WIDGET (window),
                       GDK_SELECTION_PRIMARY,
                       GDK_SELECTION_TYPE_STRING,
                       GDK_CURRENT_TIME);
    }

    return FALSE;
}

static void
ephy_tab_security_change_cb (EphyEmbed *embed, EmbedSecurityLevel level,
                   EphyTab *tab)
{
    if (!tab->priv->is_active) return;

    ephy_window_update_control (tab->priv->window,
                      StatusbarSecurityControl);
}

TabLoadStatus
ephy_tab_get_load_status (EphyTab *tab)
{
    return tab->priv->load_status;
}

int
ephy_tab_get_load_percent (EphyTab *tab)
{
    return tab->priv->load_percent;
}

const char *
ephy_tab_get_status_message (EphyTab *tab)
{
    if (*tab->priv->link_message)
    {
        return tab->priv->link_message;
    }
    else
    {
        return tab->priv->status_message;
    }
}

const char *
ephy_tab_get_title (EphyTab *tab)
{
    if (tab->priv->title &&
        g_utf8_strlen(tab->priv->title, -1))
    {
        return tab->priv->title;
    }
    else
    {
        return _("Untitled");
    }
}

const char *
ephy_tab_get_location (EphyTab *tab)
{
    return tab->priv->location;
}

const char *
ephy_tab_get_favicon_url (EphyTab *tab)
{
    if (tab->priv->favicon_url[0] == '\0')
    {
        return NULL;
    }
    else
    {
        return tab->priv->favicon_url;
    }
}

void
ephy_tab_set_location (EphyTab *tab,
               char *location)
{
    if (tab->priv->location) g_free (tab->priv->location);
    tab->priv->location = g_strdup (location);
}

void
ephy_tab_update_control (EphyTab *tab,
               TabControlID id)
{
    switch (id)
    {
        case TAB_CONTROL_TITLE:
            ephy_tab_set_title (tab, tab->priv->title);
            break;
    }
}