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path: root/src/ephy-notebook.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Copyright © 2002 Christophe Fergeau
 *  Copyright © 2003, 2004 Marco Pesenti Gritti
 *  Copyright © 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"

#include "ephy-notebook.h"
#include "eel-gconf-extensions.h"
#include "ephy-prefs.h"
#include "ephy-marshal.h"
#include "ephy-file-helpers.h"
#include "ephy-dnd.h"
#include "ephy-embed.h"
#include "ephy-embed-utils.h"
#include "ephy-window.h"
#include "ephy-shell.h"
#include "ephy-spinner.h"
#include "ephy-link.h"
#include "ephy-debug.h"

#include <glib/gi18n.h>
#include <gtk/gtk.h>

#define TAB_WIDTH_N_CHARS 15

#define AFTER_ALL_TABS -1
#define NOT_IN_APP_WINDOWS -2

#define INSANE_NUMBER_OF_URLS 20

#define EPHY_NOTEBOOK_TAB_GROUP_ID (GUINT_TO_POINTER (42))

#define EPHY_NOTEBOOK_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_NOTEBOOK, EphyNotebookPrivate))

struct _EphyNotebookPrivate
{
    GList *focused_pages;
    guint tabs_vis_notifier_id;

    guint show_tabs : 1;
    guint dnd_enabled : 1;
};

static void ephy_notebook_init       (EphyNotebook *notebook);
static void ephy_notebook_class_init     (EphyNotebookClass *klass);
static void ephy_notebook_finalize   (GObject *object);
static int  ephy_notebook_insert_page    (GtkNotebook *notebook,
                      GtkWidget *child,
                      GtkWidget *tab_label,
                      GtkWidget *menu_label,
                      int position);
static void ephy_notebook_remove     (GtkContainer *container,
                      GtkWidget *tab_widget);

static const GtkTargetEntry url_drag_types [] = 
{
        { "GTK_NOTEBOOK_TAB", GTK_TARGET_SAME_APP, 0 },
    { EPHY_DND_URI_LIST_TYPE,   0, 0 },
    { EPHY_DND_URL_TYPE,        0, 1 },
};

enum
{
    PROP_0,
    PROP_DND_ENABLED,
    PROP_SHOW_TABS
};

enum
{
    TAB_CLOSE_REQUEST,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

G_DEFINE_TYPE_WITH_CODE (EphyNotebook, ephy_notebook, GTK_TYPE_NOTEBOOK,
             G_IMPLEMENT_INTERFACE (EPHY_TYPE_LINK,
                        NULL))

void
ephy_notebook_set_dnd_enabled (EphyNotebook *notebook,
                   gboolean enabled)
{
    EphyNotebookPrivate *priv = notebook->priv;

    priv->dnd_enabled = enabled;
    /* FIXME abort any DNDs in progress */

    g_object_notify (G_OBJECT (notebook), "dnd-enabled");
}

static void
ephy_notebook_get_property (GObject *object,
                guint prop_id,
                GValue *value,
                GParamSpec *pspec)
{
    EphyNotebook *notebook = EPHY_NOTEBOOK (object);
    EphyNotebookPrivate *priv = notebook->priv;

    switch (prop_id)
    {
        case PROP_DND_ENABLED:
            g_value_set_boolean (value, priv->dnd_enabled);
            break;
        case PROP_SHOW_TABS:
            g_value_set_boolean (value, priv->show_tabs);
            break;
    }
}

static void
ephy_notebook_set_property (GObject *object,
                guint prop_id,
                const GValue *value,
                GParamSpec *pspec)
{
    EphyNotebook *notebook = EPHY_NOTEBOOK (object);

    switch (prop_id)
    {
        case PROP_DND_ENABLED:
            ephy_notebook_set_dnd_enabled (notebook, g_value_get_boolean (value));
            break;
        case PROP_SHOW_TABS:
            ephy_notebook_set_show_tabs (notebook, g_value_get_boolean (value));
            break;
    }
}

static void
ephy_notebook_class_init (EphyNotebookClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
    GtkNotebookClass *notebook_class = GTK_NOTEBOOK_CLASS (klass);

    object_class->finalize = ephy_notebook_finalize;
    object_class->get_property = ephy_notebook_get_property;
    object_class->set_property = ephy_notebook_set_property;

    container_class->remove = ephy_notebook_remove;

    notebook_class->insert_page = ephy_notebook_insert_page;
    
    gtk_rc_parse_string ("style \"ephy-tab-close-button-style\"\n"
                 "{\n"
                   "GtkWidget::focus-padding = 0\n"
                   "GtkWidget::focus-line-width = 0\n"
                   "xthickness = 0\n"
                   "ythickness = 0\n"
                 "}\n"
                 "widget \"*.ephy-tab-close-button\" style \"ephy-tab-close-button-style\"");

    signals[TAB_CLOSE_REQUEST] =
        g_signal_new ("tab-close-request",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EphyNotebookClass, tab_close_req),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1,
                  GTK_TYPE_WIDGET /* Can't use an interface type here */);

    g_object_class_install_property (object_class,
                     PROP_DND_ENABLED,
                     g_param_spec_boolean ("dnd-enabled", NULL, NULL,
                                   TRUE,
                                   G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));

    g_object_class_install_property (object_class,
                     PROP_SHOW_TABS,
                     g_param_spec_boolean ("show-tabs", NULL, NULL,
                                   TRUE,
                                   G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));

    g_type_class_add_private (object_class, sizeof (EphyNotebookPrivate));
}


/* FIXME remove when gtknotebook's func for this becomes public, bug #.... */
static EphyNotebook *
find_notebook_at_pointer (gint abs_x, gint abs_y)
{
    GdkWindow *win_at_pointer, *toplevel_win;
    gpointer toplevel = NULL;
    gint x, y;

    /* FIXME multi-head */
    win_at_pointer = gdk_window_at_pointer (&x, &y);
    if (win_at_pointer == NULL)
    {
        /* We are outside all windows containing a notebook */
        return NULL;
    }

    toplevel_win = gdk_window_get_toplevel (win_at_pointer);

    /* get the GtkWidget which owns the toplevel GdkWindow */
    gdk_window_get_user_data (toplevel_win, &toplevel);

    /* toplevel should be an EphyWindow */
    if (toplevel != NULL && EPHY_IS_WINDOW (toplevel))
    {
        return EPHY_NOTEBOOK (ephy_window_get_notebook
                    (EPHY_WINDOW (toplevel)));
    }

    return NULL;
}

static gboolean
is_in_notebook_window (EphyNotebook *notebook,
               gint abs_x, gint abs_y)
{
    EphyNotebook *nb_at_pointer;

    nb_at_pointer = find_notebook_at_pointer (abs_x, abs_y);

    return nb_at_pointer == notebook;
}

static gint
find_tab_num_at_pos (EphyNotebook *notebook, gint abs_x, gint abs_y)
{
    GtkPositionType tab_pos;
    int page_num = 0;
    GtkNotebook *nb = GTK_NOTEBOOK (notebook);
    GtkWidget *page;

    /* For some reason unfullscreen + quick click can
       cause a wrong click event to be reported to the tab */
    if (!is_in_notebook_window (notebook, abs_x, abs_y))
    {
        return NOT_IN_APP_WINDOWS;
    }

    tab_pos = gtk_notebook_get_tab_pos (nb);

    while ((page = gtk_notebook_get_nth_page (nb, page_num)))
    {
        GtkWidget *tab;
        GtkAllocation allocation;
        gint max_x, max_y;
        gint x_root, y_root;

        tab = gtk_notebook_get_tab_label (nb, page);
        g_return_val_if_fail (tab != NULL, -1);

        if (!gtk_widget_get_mapped (GTK_WIDGET (tab)))
        {
            page_num++;
            continue;
        }

        gdk_window_get_origin (gtk_widget_get_window (tab),
                       &x_root, &y_root);

        gtk_widget_get_allocation (tab, &allocation);
        max_x = x_root + allocation.x + allocation.width;
        max_y = y_root + allocation.y + allocation.height;

        if (((tab_pos == GTK_POS_TOP)
             || (tab_pos == GTK_POS_BOTTOM))
            &&(abs_x<=max_x))
        {
            return page_num;
        }
        else if (((tab_pos == GTK_POS_LEFT)
              || (tab_pos == GTK_POS_RIGHT))
             && (abs_y<=max_y))
        {
            return page_num;
        }

        page_num++;
    }
    return AFTER_ALL_TABS;
}

static gboolean
button_press_cb (EphyNotebook *notebook,
         GdkEventButton *event,
         gpointer data)
{
    int tab_clicked;

    tab_clicked = find_tab_num_at_pos (notebook, event->x_root, event->y_root);

    if (event->type == GDK_BUTTON_PRESS &&
        event->button == 3 &&
        (event->state & gtk_accelerator_get_default_mod_mask ()) == 0)
    {
        if (tab_clicked == -1)
        {
            /* Consume event so that we don't pop up the context
             * menu when the mouse is not over a tab label.
             */
            return TRUE;
        }

        /* Switch to the page where the mouse is over, but don't consume the
         * event. */
        gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), tab_clicked);
    }

    return FALSE;
}

static void
ephy_notebook_switch_page_cb (GtkNotebook *notebook,
                  GtkWidget *page,
                  guint page_num,
                  gpointer data)
{
    EphyNotebook *nb = EPHY_NOTEBOOK (notebook);
    EphyNotebookPrivate *priv = nb->priv;
    GtkWidget *child;

    child = gtk_notebook_get_nth_page (notebook, page_num);

    /* Remove the old page, we dont want to grow unnecessarily
     * the list */
    if (priv->focused_pages)
    {
        priv->focused_pages =
            g_list_remove (priv->focused_pages, child);
    }

    priv->focused_pages = g_list_append (priv->focused_pages, child);
}

static void
notebook_drag_data_received_cb (GtkWidget* widget,
                                GdkDragContext *context,
                int x,
                                int y,
                                GtkSelectionData *selection_data,
                guint info,
                                guint time,
                                EphyEmbed *embed)
{
    EphyWindow *window;
    GtkWidget *notebook;
    GdkAtom target;
    const guchar *data;

    target = gtk_selection_data_get_target (selection_data);
        if (target == gdk_atom_intern_static_string ("GTK_NOTEBOOK_TAB"))
                return;

    g_signal_stop_emission_by_name (widget, "drag_data_received");

    if (eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_ARBITRARY_URL)) return;

    data = gtk_selection_data_get_data (selection_data);
    if (gtk_selection_data_get_length (selection_data) <= 0 || data == NULL) return;

    window = EPHY_WINDOW (gtk_widget_get_toplevel (widget));
    notebook = ephy_window_get_notebook (window);

    if (target == gdk_atom_intern (EPHY_DND_URL_TYPE, FALSE))
    {
        char **split;

        /* URL_TYPE has format: url \n title */
        split = g_strsplit ((const gchar *) data, "\n", 2);
        if (split != NULL && split[0] != NULL && split[0][0] != '\0')
        {
            ephy_link_open (EPHY_LINK (notebook), split[0], embed,
                    embed ? 0 : EPHY_LINK_NEW_TAB);
        }
        g_strfreev (split);
    }
    else if (target == gdk_atom_intern (EPHY_DND_URI_LIST_TYPE, FALSE))
    {
        char **uris;
        int i;

        uris = gtk_selection_data_get_uris (selection_data);
        if (uris == NULL) return;

        for (i = 0; uris[i] != NULL && i < INSANE_NUMBER_OF_URLS; i++)
        {
            embed = ephy_link_open (EPHY_LINK (notebook), uris[i], embed,
                    (embed && i == 0) ? 0 : EPHY_LINK_NEW_TAB);
        }

        g_strfreev (uris);
    }
    else
    {
        char *text;
           
        text = (char *) gtk_selection_data_get_text (selection_data);
        if (text != NULL) {
            ephy_link_open (EPHY_LINK (notebook), text, embed,
                    embed ? 0 : EPHY_LINK_NEW_TAB);
            g_free (text);
        }
    }
}

/*
 * update_tabs_visibility: Hide tabs if there is only one tab
 * and the pref is not set.
 */
static void
update_tabs_visibility (EphyNotebook *nb,
            gboolean before_inserting)
{
    EphyNotebookPrivate *priv = nb->priv;
    gboolean show_tabs;
    guint num;

    num = gtk_notebook_get_n_pages (GTK_NOTEBOOK (nb));

    if (before_inserting) num++;

    show_tabs = (eel_gconf_get_boolean (CONF_ALWAYS_SHOW_TABS_BAR) || num > 1) &&
            priv->show_tabs == TRUE;

    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (nb), show_tabs);
}

static void
tabs_visibility_notifier (GConfClient *client,
              guint cnxn_id,
              GConfEntry *entry,
              EphyNotebook *nb)
{
    update_tabs_visibility (nb, FALSE);
}

static void
ephy_notebook_init (EphyNotebook *notebook)
{
    EphyNotebookPrivate *priv;
        GtkWidget *widget = GTK_WIDGET (notebook);
        GtkNotebook *gnotebook = GTK_NOTEBOOK (notebook);

    priv = notebook->priv = EPHY_NOTEBOOK_GET_PRIVATE (notebook);

    gtk_notebook_set_scrollable (gnotebook, TRUE);
    gtk_notebook_set_show_border (gnotebook, FALSE);
    gtk_notebook_set_show_tabs (gnotebook, FALSE);
        gtk_notebook_set_group (gnotebook, EPHY_NOTEBOOK_TAB_GROUP_ID);

    priv->show_tabs = TRUE;
    priv->dnd_enabled = TRUE;

    g_signal_connect (notebook, "button-press-event",
              (GCallback)button_press_cb, NULL);
    g_signal_connect_after (notebook, "switch-page",
                G_CALLBACK (ephy_notebook_switch_page_cb),
                NULL);

    /* Set up drag-and-drop target */
    g_signal_connect (notebook, "drag-data-received",
              G_CALLBACK (notebook_drag_data_received_cb),
              NULL);
    gtk_drag_dest_set (widget, 0,
               url_drag_types, G_N_ELEMENTS (url_drag_types),
               GDK_ACTION_MOVE | GDK_ACTION_COPY);
    gtk_drag_dest_add_text_targets (widget);

    priv->tabs_vis_notifier_id = eel_gconf_notification_add
        (CONF_ALWAYS_SHOW_TABS_BAR,
         (GConfClientNotifyFunc)tabs_visibility_notifier, notebook);
}

static void
ephy_notebook_finalize (GObject *object)
{
    EphyNotebook *notebook = EPHY_NOTEBOOK (object);
    EphyNotebookPrivate *priv = notebook->priv;

    eel_gconf_notification_remove (priv->tabs_vis_notifier_id);

    g_list_free (priv->focused_pages);

    G_OBJECT_CLASS (ephy_notebook_parent_class)->finalize (object);
}

static void
sync_load_status (EphyWebView *view, GParamSpec *pspec, GtkWidget *proxy)
{
    GtkWidget *spinner, *icon;

    spinner = GTK_WIDGET (g_object_get_data (G_OBJECT (proxy), "spinner"));
    icon = GTK_WIDGET (g_object_get_data (G_OBJECT (proxy), "icon"));
    g_return_if_fail (spinner != NULL && icon != NULL);

    if (ephy_web_view_is_loading (view))
    {
        gtk_widget_hide (icon);
        gtk_widget_show (spinner);
        ephy_spinner_start (EPHY_SPINNER (spinner));
    }
    else
    {
        ephy_spinner_stop (EPHY_SPINNER (spinner));
        gtk_widget_hide (spinner);
        gtk_widget_show (icon);
    }
}

static void
sync_icon (EphyWebView *view,
       GParamSpec *pspec,
       GtkImage *icon)
{
    gtk_image_set_from_pixbuf (icon, ephy_web_view_get_icon (view));
}

static void
sync_label (EphyWebView *view, GParamSpec *pspec, GtkWidget *label)
{
    const char *title;

    title = ephy_web_view_get_title (view);

    gtk_label_set_text (GTK_LABEL (label), title);

    /* Set the tooltip on the label's parent (the tab label hbox),
     * so it covers all of the tab label.
     */
    gtk_widget_set_tooltip_text (gtk_widget_get_parent (label),
                     title);
}

static void
close_button_clicked_cb (GtkWidget *widget, GtkWidget *tab)
{
    GtkWidget *notebook;

    notebook = gtk_widget_get_parent (tab);
    g_signal_emit (notebook, signals[TAB_CLOSE_REQUEST], 0, tab);
}

static void
tab_label_style_set_cb (GtkWidget *hbox,
            GtkStyle *previous_style,
            gpointer user_data)
{
    PangoFontMetrics *metrics;
    PangoContext *context;
    GtkWidget *button;
    int char_width, h, w;

    context = gtk_widget_get_pango_context (hbox);
    metrics = pango_context_get_metrics (context,
                         gtk_widget_get_style (hbox)->font_desc,
                         pango_context_get_language (context));

    char_width = pango_font_metrics_get_approximate_digit_width (metrics);
    pango_font_metrics_unref (metrics);

    gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (hbox),
                       GTK_ICON_SIZE_MENU, &w, &h);

    gtk_widget_set_size_request
        (hbox, TAB_WIDTH_N_CHARS * PANGO_PIXELS(char_width) + 2 * w, -1);

    button = g_object_get_data (G_OBJECT (hbox), "close-button");
    gtk_widget_set_size_request (button, w + 2, h + 2);
}

static GtkWidget *
build_tab_label (EphyNotebook *nb, EphyEmbed *embed)
{
    GtkWidget *hbox, *label, *close_button, *image, *spinner, *icon;
    EphyWebView *view;

    /* set hbox spacing and label padding (see below) so that there's an
     * equal amount of space around the label */
    hbox = gtk_hbox_new (FALSE, 4);
    gtk_widget_show (hbox);

    /* setup load feedback */
    spinner = ephy_spinner_new ();
    ephy_spinner_set_size (EPHY_SPINNER (spinner), GTK_ICON_SIZE_MENU);
    gtk_box_pack_start (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);

    /* setup site icon, empty by default */
    icon = gtk_image_new ();
    gtk_box_pack_start (GTK_BOX (hbox), icon, FALSE, FALSE, 0);
    /* don't show the icon */

    /* setup label */
    label = gtk_label_new (NULL);
    gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
    gtk_label_set_single_line_mode (GTK_LABEL (label), TRUE);
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    gtk_misc_set_padding (GTK_MISC (label), 0, 0);
    gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
    gtk_widget_show (label);

    /* setup close button */
    close_button = gtk_button_new ();
    gtk_button_set_relief (GTK_BUTTON (close_button),
                   GTK_RELIEF_NONE);
    /* don't allow focus on the close button */
    gtk_button_set_focus_on_click (GTK_BUTTON (close_button), FALSE);

    gtk_widget_set_name (close_button, "ephy-tab-close-button");

    image = gtk_image_new_from_stock (GTK_STOCK_CLOSE, GTK_ICON_SIZE_MENU);
    gtk_widget_set_tooltip_text (close_button, _("Close tab"));
    g_signal_connect (close_button, "clicked",
              G_CALLBACK (close_button_clicked_cb), embed);

    gtk_container_add (GTK_CONTAINER (close_button), image);
    gtk_widget_show (image);

    gtk_box_pack_start (GTK_BOX (hbox), close_button, FALSE, FALSE, 0);
    gtk_widget_show (close_button);

    /* Set minimal size */
    g_signal_connect (hbox, "style-set",
              G_CALLBACK (tab_label_style_set_cb), NULL);

    /* Set up drag-and-drop target */
    g_signal_connect (hbox, "drag-data-received",
              G_CALLBACK (notebook_drag_data_received_cb), embed);
    gtk_drag_dest_set (hbox, GTK_DEST_DEFAULT_ALL,
               url_drag_types, G_N_ELEMENTS (url_drag_types),
               GDK_ACTION_MOVE | GDK_ACTION_COPY);
    gtk_drag_dest_add_text_targets (hbox);

    g_object_set_data (G_OBJECT (hbox), "label", label);
    g_object_set_data (G_OBJECT (hbox), "spinner", spinner);
    g_object_set_data (G_OBJECT (hbox), "icon", icon);
    g_object_set_data (G_OBJECT (hbox), "close-button", close_button);

    /* Hook the label up to the tab properties */
    view = ephy_embed_get_web_view (embed);
    sync_icon (view, NULL, GTK_IMAGE (icon));
    sync_label (view, NULL, label);
    sync_load_status (view, NULL, hbox);

    g_signal_connect_object (view, "notify::icon",
                 G_CALLBACK (sync_icon), icon, 0);
    g_signal_connect_object (view, "notify::embed-title",
                 G_CALLBACK (sync_label), label, 0);
    g_signal_connect_object (view, "notify::load-status",
                 G_CALLBACK (sync_load_status), hbox, 0);

    return hbox;
}

void
ephy_notebook_set_show_tabs (EphyNotebook *nb,
                 gboolean show_tabs)
{
    EphyNotebookPrivate *priv = nb->priv;

    priv->show_tabs = show_tabs != FALSE;

    update_tabs_visibility (nb, FALSE);
}

/**
 * ephy_notebook_get_focused_pages:
 *
 * Return value: (transfer none):
 **/
GList *
ephy_notebook_get_focused_pages (EphyNotebook *nb)
{
    g_return_val_if_fail (EPHY_IS_NOTEBOOK (nb), NULL);

    return nb->priv->focused_pages;
}

static int
ephy_notebook_insert_page (GtkNotebook *gnotebook,
               GtkWidget *tab_widget,
               GtkWidget *tab_label,
               GtkWidget *menu_label,
               int position)
{
    EphyNotebook *notebook = EPHY_NOTEBOOK (gnotebook);

    /* Destroy passed-in tab label */
    if (tab_label != NULL)
    {
        g_object_ref_sink (tab_label);
        g_object_unref (tab_label);
    }

    g_assert (EPHY_IS_EMBED (tab_widget));

    tab_label = build_tab_label (notebook, EPHY_EMBED (tab_widget));

    update_tabs_visibility (notebook, TRUE);

    position = GTK_NOTEBOOK_CLASS (ephy_notebook_parent_class)->insert_page (gnotebook,
                                         tab_widget,
                                         tab_label,
                                         menu_label,
                                         position);

    gtk_notebook_set_tab_reorderable (gnotebook, tab_widget, TRUE);
        gtk_notebook_set_tab_detachable (gnotebook, tab_widget, TRUE);

    return position;
}

int
ephy_notebook_add_tab (EphyNotebook *notebook,
               EphyEmbed *embed,
               int position,
               gboolean jump_to)
{
    GtkNotebook *gnotebook = GTK_NOTEBOOK (notebook);

    g_return_val_if_fail (EPHY_IS_NOTEBOOK (notebook), -1);

    position = gtk_notebook_insert_page (GTK_NOTEBOOK (notebook),
                         GTK_WIDGET (embed),
                         NULL,
                         position);

    if (jump_to)
    {
        gtk_notebook_set_current_page (gnotebook, position);
        g_object_set_data (G_OBJECT (embed), "jump_to",
                   GINT_TO_POINTER (jump_to));
    }

    return position;
}

static void
smart_tab_switching_on_closure (EphyNotebook *notebook,
                GtkWidget *tab)
{
    EphyNotebookPrivate *priv = notebook->priv;
    gboolean jump_to;

    jump_to = GPOINTER_TO_INT (g_object_get_data
                   (G_OBJECT (tab), "jump_to"));

    if (!jump_to || !priv->focused_pages)
    {
        gtk_notebook_next_page (GTK_NOTEBOOK (notebook));
    }
    else
    {
        GList *l;
        GtkWidget *child;
        int page_num;

        /* activate the last focused tab */
        l = g_list_last (priv->focused_pages);
        child = GTK_WIDGET (l->data);
        page_num = gtk_notebook_page_num (GTK_NOTEBOOK (notebook),
                          child);
        gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook),
                           page_num);
    }
}

static void
ephy_notebook_remove (GtkContainer *container,
              GtkWidget *tab_widget)
{
    GtkNotebook *gnotebook = GTK_NOTEBOOK (container);
    EphyNotebook *notebook = EPHY_NOTEBOOK (container);
    EphyNotebookPrivate *priv = notebook->priv;
    GtkWidget *tab_label, *tab_label_label, *tab_label_icon;
    int position, curr;
    EphyWebView *view;

    g_assert (EPHY_IS_EMBED (tab_widget));

    /* Remove the page from the focused pages list */
    priv->focused_pages =  g_list_remove (priv->focused_pages, tab_widget);

    position = gtk_notebook_page_num (gnotebook, tab_widget);
    curr = gtk_notebook_get_current_page (gnotebook);

    if (position == curr)
    {
        smart_tab_switching_on_closure (notebook, tab_widget);
    }

    /* Prepare tab label for destruction */
    tab_label = gtk_notebook_get_tab_label (gnotebook, tab_widget);
    tab_label_icon = g_object_get_data (G_OBJECT (tab_label), "icon");
    tab_label_label = g_object_get_data (G_OBJECT (tab_label), "label");

    view = ephy_embed_get_web_view (EPHY_EMBED (tab_widget));

    g_signal_handlers_disconnect_by_func
        (view, G_CALLBACK (sync_icon), tab_label_icon);
    g_signal_handlers_disconnect_by_func
        (view, G_CALLBACK (sync_label), tab_label_label);
    g_signal_handlers_disconnect_by_func
      (view, G_CALLBACK (sync_load_status), tab_label);

    GTK_CONTAINER_CLASS (ephy_notebook_parent_class)->remove (container, tab_widget);

    update_tabs_visibility (notebook, FALSE);

    /* if that was the last tab, destroy the window */
    if (gtk_notebook_get_n_pages (gnotebook) == 0)
    {
        gtk_widget_destroy (gtk_widget_get_toplevel (GTK_WIDGET (notebook)));
    }
}