path: root/embed/mozilla/mozilla-embed.cpp

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Copyright © 2000-2004 Marco Pesenti Gritti
 *  Copyright © 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "mozilla-config.h"
#include "config.h"

#include <nsStringAPI.h>

#include <gtkmozembed.h>
#include <nsIDOMKeyEvent.h>
#include <nsIDOMMouseEvent.h>
#include <nsIRequest.h>
#include <nsIURI.h>
#include <nsIWebNavigation.h>
#include <nsIWebProgressListener.h>
#include <nsMemory.h>

#include <glib/gi18n.h>

#include "EphyBrowser.h"
#include "EphyUtils.h"
#include "EventContext.h"

#include "ephy-command-manager.h"
#include "ephy-debug.h"
#include "mozilla-embed.h"
#include "ephy-embed-container.h"
#include "ephy-embed-shell.h"
#include "ephy-embed-single.h"
#include "mozilla-embed-event.h"
#include "mozilla-history-item.h"

static void mozilla_embed_class_init    (MozillaEmbedClass *klass);
static void mozilla_embed_init      (MozillaEmbed *gs);
static void mozilla_embed_destroy       (GtkObject *object);
static void mozilla_embed_finalize      (GObject *object);
static void ephy_embed_iface_init       (EphyEmbedIface *iface);

static void mozilla_embed_location_changed_cb   (GtkMozEmbed *embed,
                         MozillaEmbed *membed);
static void mozilla_embed_net_state_all_cb  (GtkMozEmbed *embed,
                         const char *aURI,
                         gint state,
                         guint status,
                         MozillaEmbed *membed);
static gboolean mozilla_embed_dom_mouse_click_cb(GtkMozEmbed *embed,
                         gpointer dom_event,
                         MozillaEmbed *membed);
static gboolean mozilla_embed_dom_mouse_down_cb (GtkMozEmbed *embed,
                         gpointer dom_event, 
                         MozillaEmbed *membed);
static gboolean mozilla_embed_dom_key_press_cb  (GtkMozEmbed *embed,
                         gpointer dom_event, 
                         MozillaEmbed *membed);
static void mozilla_embed_new_window_cb     (GtkMozEmbed *embed, 
                         GtkMozEmbed **newEmbed,
                         guint chrome_mask,
                         MozillaEmbed *membed);
static void mozilla_embed_security_change_cb    (GtkMozEmbed *embed, 
                         gpointer request,
                         PRUint32 state,
                         MozillaEmbed *membed);
static void mozilla_embed_title_change_cb   (GtkMozEmbed *embed,
                         MozillaEmbed *membed);
static void mozilla_embed_link_message_cb   (GtkMozEmbed *embed,
                         MozillaEmbed *membed);
static void mozilla_embed_visibility_cb     (GtkMozEmbed *embed,
                         gboolean visibility,
                         MozillaEmbed *membed);
static gboolean mozilla_embed_open_uri_cb   (GtkMozEmbed *embed,
                         const char *uri,
                         MozillaEmbed *membed);
static void mozilla_embed_size_to_cb        (GtkMozEmbed *embed,
                         int width,
                         int height,
                         MozillaEmbed *membed);

static EphyEmbedSecurityLevel mozilla_embed_security_level (PRUint32 state);

#define MOZILLA_EMBED_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), MOZILLA_TYPE_EMBED, MozillaEmbedPrivate))

typedef enum
{
    MOZILLA_EMBED_LOAD_STARTED,
    MOZILLA_EMBED_LOAD_REDIRECTING,
    MOZILLA_EMBED_LOAD_LOADING,
    MOZILLA_EMBED_LOAD_STOPPED
} MozillaEmbedLoadState;

struct MozillaEmbedPrivate
{
    EphyBrowser *browser;
    GtkMozEmbed *moz_embed;
    MozillaEmbedLoadState load_state;

    guint idle_resize_handler;
};

#define WINDOWWATCHER_CONTRACTID "@mozilla.org/embedcomp/window-watcher;1"

static void
impl_manager_do_command (EphyCommandManager *manager,
             const char *command) 
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(manager)->priv;

    mpriv->browser->DoCommand (command);
}

static gboolean
impl_manager_can_do_command (EphyCommandManager *manager,
                 const char *command) 
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(manager)->priv;
    nsresult rv;
    PRBool enabled;

    rv = mpriv->browser->GetCommandState (command, &enabled);

    return NS_SUCCEEDED (rv) ? enabled : FALSE;
}

static void
ephy_command_manager_iface_init (EphyCommandManagerIface *iface)
{
    iface->do_command = impl_manager_do_command;
    iface->can_do_command = impl_manager_can_do_command;
}

G_DEFINE_TYPE_WITH_CODE (MozillaEmbed, mozilla_embed, EPHY_TYPE_BASE_EMBED,
             G_IMPLEMENT_INTERFACE (EPHY_TYPE_EMBED,
                        ephy_embed_iface_init)
             G_IMPLEMENT_INTERFACE (EPHY_TYPE_COMMAND_MANAGER,
                        ephy_command_manager_iface_init))
    
static void
impl_close (EphyEmbed *embed) 
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED (embed)->priv;

    mpriv->browser->Close ();
}

static void
mozilla_embed_realize (GtkWidget *widget)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED (widget)->priv;

    GTK_WIDGET_CLASS (mozilla_embed_parent_class)->realize (widget);

    gtk_widget_realize (GTK_WIDGET (mpriv->moz_embed));
    /* Initialise our helper class */
    nsresult rv;
    rv = mpriv->browser->Init (EPHY_EMBED (widget));
    if (NS_FAILED (rv))
    {
        g_warning ("EphyBrowser initialization failed for %p\n", widget);
        return;
    }
}

static GObject *
mozilla_embed_constructor (GType type, guint n_construct_properties,
               GObjectConstructParam *construct_params)
{
    g_object_ref (embed_shell);

    /* we depend on single because of mozilla initialization */
    ephy_embed_shell_get_embed_single (embed_shell);

    return G_OBJECT_CLASS (mozilla_embed_parent_class)->constructor (type, n_construct_properties,
                                     construct_params);
}

static void
mozilla_embed_size_allocate (GtkWidget *widget,
                 GtkAllocation *allocation)
{
    GtkWidget *child;
    GtkAllocation invalid = { -1, -1, 1, 1 };

    widget->allocation = *allocation;

    child = GTK_BIN (widget)->child;
    g_return_if_fail (child != NULL);

    /* only resize if we're mapped (bug #128191),
     * or if this is the initial size-allocate (bug #156854).
     */
    if (GTK_WIDGET_MAPPED (child) ||
        memcmp (&child->allocation, &invalid, sizeof (GtkAllocation)) == 0)
    {
        gtk_widget_size_allocate (child, allocation);
    }
}

static void
mozilla_embed_grab_focus (GtkWidget *widget)
{
    GtkWidget *child;

    /* What we want to focus here is the MozContainer inside the
     * GtkMozEmbed, because the GtkMozEmbed itself does not gain focus.
     */
    child = gtk_bin_get_child (GTK_BIN (MOZILLA_EMBED (widget)->priv->moz_embed));

    if (child && GTK_WIDGET_REALIZED (child))
        gtk_widget_grab_focus (child);
    else
        g_warning ("Need to realize the embed before grabbing focus!\n");
}

static void
mozilla_embed_dispose (GObject *object)
{
    MozillaEmbedPrivate *priv = MOZILLA_EMBED (object)->priv;

    if (priv->idle_resize_handler != 0)
    {
        g_source_remove (priv->idle_resize_handler);
        priv->idle_resize_handler = 0;
    }

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

static void
mozilla_embed_class_init (MozillaEmbedClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (klass); 
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); 

    object_class->constructor = mozilla_embed_constructor;
    object_class->finalize = mozilla_embed_finalize;
    object_class->dispose = mozilla_embed_dispose;

    gtk_object_class->destroy = mozilla_embed_destroy;

    widget_class->realize = mozilla_embed_realize;
    widget_class->size_allocate = mozilla_embed_size_allocate;
    widget_class->grab_focus = mozilla_embed_grab_focus;

    g_type_class_add_private (object_class, sizeof(MozillaEmbedPrivate));
}

static void
mozilla_embed_init (MozillaEmbed *membed)
{
    MozillaEmbedPrivate *priv;
    GtkWidget *embed;

    membed->priv = MOZILLA_EMBED_GET_PRIVATE (membed);
    priv = membed->priv;

    embed = gtk_moz_embed_new ();
    priv->moz_embed = GTK_MOZ_EMBED (embed);
    gtk_container_add (GTK_CONTAINER (membed), embed);
    gtk_widget_show (embed);

    priv->browser = new EphyBrowser ();

    g_signal_connect_object (embed, "location",
                 G_CALLBACK (mozilla_embed_location_changed_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "net_state_all",
                 G_CALLBACK (mozilla_embed_net_state_all_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "dom_mouse_click",
                 G_CALLBACK (mozilla_embed_dom_mouse_click_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "dom_mouse_down",
                 G_CALLBACK (mozilla_embed_dom_mouse_down_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "dom-key-press",
                 G_CALLBACK (mozilla_embed_dom_key_press_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "new_window",
                 G_CALLBACK (mozilla_embed_new_window_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "security_change",
                 G_CALLBACK (mozilla_embed_security_change_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "title",
                 G_CALLBACK (mozilla_embed_title_change_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "link_message",
                 G_CALLBACK (mozilla_embed_link_message_cb),
                 membed, (GConnectFlags)0);
    g_signal_connect_object (embed, "open_uri",
                 G_CALLBACK (mozilla_embed_open_uri_cb),
                 membed,(GConnectFlags) 0);
    g_signal_connect_object (embed, "visibility",
                 G_CALLBACK (mozilla_embed_visibility_cb),
                 membed, (GConnectFlags) 0);
    g_signal_connect_object (embed, "size_to",
                 G_CALLBACK (mozilla_embed_size_to_cb),
                 membed, (GConnectFlags) 0);
}

gpointer
_mozilla_embed_get_ephy_browser (MozillaEmbed *embed)
{
    g_return_val_if_fail (embed->priv->browser != NULL, NULL);
    
    return embed->priv->browser;
}

static void
mozilla_embed_destroy (GtkObject *object)
{
    MozillaEmbed *embed = MOZILLA_EMBED (object);

    if (embed->priv->browser)
    {
        embed->priv->browser->Destroy();
    }
    
    GTK_OBJECT_CLASS (mozilla_embed_parent_class)->destroy (object);
}

static void
mozilla_embed_finalize (GObject *object)
{
    MozillaEmbed *embed = MOZILLA_EMBED (object);

    if (embed->priv->browser)
    {
        delete embed->priv->browser;
        embed->priv->browser = nsnull;
    }

    G_OBJECT_CLASS (mozilla_embed_parent_class)->finalize (object);

    g_object_unref (embed_shell);
}

static void
impl_load_url (EphyEmbed *embed, 
           const char *url)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    gtk_moz_embed_load_url (moz_embed, url);
}

static char * impl_get_location (EphyEmbed *embed, gboolean toplevel);

static void
impl_load (EphyEmbed *embed, 
       const char *url,
       EphyEmbedLoadFlags flags,
       EphyEmbed *preview_embed)
{
    EphyBrowser *browser;

    browser = MOZILLA_EMBED(embed)->priv->browser;
    g_return_if_fail (browser != NULL);

    nsCOMPtr<nsIURI> uri;
    if (preview_embed != NULL)
    {
        EphyBrowser *pbrowser;

        pbrowser = MOZILLA_EMBED(preview_embed)->priv->browser;
        if (pbrowser != NULL)
        {
            pbrowser->GetDocumentURI (getter_AddRefs (uri));
        }
    }

#ifdef HAVE_GECKO_1_8_1
    if (flags & EPHY_EMBED_LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP)
    {
        browser->LoadURI (url, nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP, uri);  
    }
    else
#endif /* HAVE_GECKO_1_8_1 */
    {
        browser->LoadURI (url, nsIWebNavigation::LOAD_FLAGS_NONE, uri); 
    }
}

static void
impl_stop_load (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    gtk_moz_embed_stop_load (moz_embed);    
}

static gboolean
impl_can_go_back (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    return gtk_moz_embed_can_go_back (moz_embed);
}

static gboolean
impl_can_go_forward (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    return gtk_moz_embed_can_go_forward (moz_embed);
}

static gboolean
mozilla_embed_get_uri_parent (MozillaEmbed *membed,
                  const char *aUri,
                  nsCString &aParent)
{
    nsresult rv;
    nsCString encoding;
    rv = membed->priv->browser->GetEncoding (encoding);
    if (NS_FAILED (rv)) return FALSE;
    
    /* Check for HTML anchors */
    nsCOMPtr<nsIURI> uri;
    const char *anchor = strrchr (aUri, '#');
    if (anchor)
    {
        aParent.Assign (aUri);
        aParent.SetLength (anchor - aUri);

        return TRUE;
    }
    
    rv = EphyUtils::NewURI (getter_AddRefs(uri), nsCString(aUri), encoding.get());
    if (NS_FAILED(rv) || !uri) return FALSE;

    /* Don't support going 'up' with chrome url's, mozilla handily
     * fixes them up for us, so it doesn't work properly, see
     * rdf/chrome/src/nsChromeProtocolHandler.cpp::NewURI()
     * (the Canonify() call)
     */
    nsCString scheme;
    rv = uri->GetScheme (scheme);
    if (NS_FAILED(rv) || !scheme.Length()) return FALSE;
    if (strcmp (scheme.get(), "chrome") == 0) return FALSE;

    nsCString path;
    rv = uri->GetPath(path);
    if (NS_FAILED(rv) || !path.Length()) return FALSE;
    if (strcmp (path.get (), "/") == 0) return FALSE;

    const char *slash = strrchr (path.BeginReading(), '/');
    if (!slash) return FALSE;

    if (slash[1] == '\0')
    {
        /* ends with a slash - a directory, go to parent */
        rv = uri->Resolve (nsCString(".."), aParent);
    }
    else
    {
        /* it's a file, go to the directory */
        rv = uri->Resolve (nsCString("."), aParent);
    }

    return NS_SUCCEEDED (rv);
}

static gboolean
impl_can_go_up (EphyEmbed *embed)
{
    MozillaEmbed *membed = MOZILLA_EMBED (embed);
    char *address;
    gboolean result;

    address = ephy_embed_get_location (embed, TRUE);
    if (address == NULL) return FALSE;

    nsCString parent;
    result = mozilla_embed_get_uri_parent (membed, address, parent);
    g_free (address);

    return result;
}

static GSList *
impl_get_go_up_list (EphyEmbed *embed)
{
    MozillaEmbed *membed = MOZILLA_EMBED (embed);
    GSList *l = NULL;
    char *address, *s;

    address = ephy_embed_get_location (embed, TRUE);
    if (address == NULL) return NULL;

    s = address;
    nsCString parent;
    while (mozilla_embed_get_uri_parent (membed, s, parent))
    {
        s = g_strdup (parent.get());
        l = g_slist_prepend (l, s);
    }

    g_free (address);

    return g_slist_reverse (l);
}

static void
impl_go_back (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    gtk_moz_embed_go_back (moz_embed);
}
        
static void
impl_go_forward (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    gtk_moz_embed_go_forward (moz_embed);
}

static void
impl_go_up (EphyEmbed *embed)
{
    MozillaEmbed *membed = MOZILLA_EMBED (embed);
    char *uri;

    uri = ephy_embed_get_location (embed, TRUE);
    if (uri == NULL) return;

    gboolean rv;
    nsCString parent_uri;
    rv = mozilla_embed_get_uri_parent (membed, uri, parent_uri);
    g_free (uri);

    g_return_if_fail (rv != FALSE);

    ephy_embed_load_url (embed, parent_uri.get ());
}

static char *
impl_get_js_status (EphyEmbed *embed)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    return gtk_moz_embed_get_js_status (moz_embed);
}

static char *
impl_get_location (EphyEmbed *embed, 
           gboolean toplevel)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;

    nsCOMPtr<nsIURI> uri;
    if (toplevel)
    {
        rv = mpriv->browser->GetDocumentURI (getter_AddRefs (uri));
    }
    else
    {
        rv = mpriv->browser->GetTargetDocumentURI (getter_AddRefs (uri));
    }

    if (NS_FAILED (rv)) return NULL;

    nsCOMPtr<nsIURI> furi;
    rv = uri->Clone (getter_AddRefs (furi));
    /* Some nsIURI impls return NS_OK even though they didn't put anything in the outparam!! */
    if (NS_FAILED (rv) || !furi) furi.swap(uri);

    /* Hide password part */
    nsCString user;
    furi->GetUsername (user);
    furi->SetUserPass (user);

    nsCString url;
    furi->GetSpec (url);

    return url.Length() ? g_strdup (url.get()) : NULL;
}

static void
impl_reload (EphyEmbed *embed, 
         gboolean force)
{
    GtkMozEmbed *moz_embed = MOZILLA_EMBED (embed)->priv->moz_embed;
    guint32 mflags = GTK_MOZ_EMBED_FLAG_RELOADNORMAL;

    if (force)
    {
        mflags = GTK_MOZ_EMBED_FLAG_RELOADBYPASSPROXYANDCACHE;
    }

    gtk_moz_embed_reload (moz_embed, mflags);
}

static void
impl_set_zoom (EphyEmbed *embed, 
           float zoom) 
{
    EphyBrowser *browser;
    nsresult rv;

    g_return_if_fail (zoom > 0.0);

    browser = MOZILLA_EMBED(embed)->priv->browser;
    g_return_if_fail (browser != NULL);

    rv = browser->SetZoom (zoom);

    if (NS_SUCCEEDED (rv))
    {
        g_signal_emit_by_name (embed, "ge_zoom_change", zoom);
    }
}

static float
impl_get_zoom (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    float f;

    nsresult rv;    
    rv = mpriv->browser->GetZoom (&f);
    
    if (NS_SUCCEEDED (rv))
    {
        return f;
    }

    return 1.0;
}

static void
impl_scroll_lines (EphyEmbed *embed,
           int num_lines)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    mpriv->browser->ScrollLines (num_lines);
}

static void
impl_scroll_pages (EphyEmbed *embed,
           int num_pages)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    mpriv->browser->ScrollPages (num_pages);
}

static void
impl_scroll_pixels (EphyEmbed *embed,
            int dx,
            int dy)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    mpriv->browser->ScrollPixels (dx, dy);
}

static int
impl_shistory_n_items (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    int count, index;

    rv = mpriv->browser->GetSHInfo (&count, &index);

    return NS_SUCCEEDED(rv) ? count : 0;
}

static int
impl_shistory_get_pos (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    int count, index;

    rv = mpriv->browser->GetSHInfo (&count, &index);

    return NS_SUCCEEDED(rv) ? index : 0;
}

static void
impl_shistory_copy (EphyEmbed *source,
            EphyEmbed *dest,
            gboolean copy_back,
            gboolean copy_forward,
            gboolean copy_current)
{
    MozillaEmbedPrivate *spriv = MOZILLA_EMBED(source)->priv;
    MozillaEmbedPrivate *dpriv = MOZILLA_EMBED(dest)->priv;

    spriv->browser->CopySHistory(dpriv->browser, copy_back,
                     copy_forward, copy_current);
}

static void
impl_get_security_level (EphyEmbed *embed,
             EphyEmbedSecurityLevel *level,
             char **description)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED (embed)->priv;

    if (level) *level = EPHY_EMBED_STATE_IS_UNKNOWN;
    if (description) *description = NULL;

    nsresult rv;
    PRUint32 state;
    nsCString desc;
    rv = mpriv->browser->GetSecurityInfo (&state, desc);
    if (NS_FAILED (rv)) return;

    if (level) *level = mozilla_embed_security_level (state);
    if (description) *description = g_strdup (desc.get());
}

static void
impl_show_page_certificate (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED (embed)->priv;

    mpriv->browser->ShowCertificate ();
}
    
static void
impl_print (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
 
    mpriv->browser->Print ();
}

static void
impl_set_print_preview_mode (EphyEmbed *embed, gboolean preview_mode)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    mpriv->browser->SetPrintPreviewMode (preview_mode);
}

static int
impl_print_preview_n_pages (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    int num;

    rv = mpriv->browser->PrintPreviewNumPages(&num);

    return NS_SUCCEEDED (rv) ? num : 0;
}

static void
impl_print_preview_navigate (EphyEmbed *embed,
                 EphyEmbedPrintPreviewNavType type,
                 int page)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    mpriv->browser->PrintPreviewNavigate(type, page);
}

static void
impl_set_encoding (EphyEmbed *embed,
           const char *encoding)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    nsCString currEnc;

    g_return_if_fail (encoding != NULL);

    rv = mpriv->browser->GetEncoding (currEnc);
    if (NS_FAILED (rv)) return;

    if (strcmp (currEnc.get(), encoding) != 0 ||
        encoding[0] == '\0' && !ephy_embed_has_automatic_encoding (embed))
    {
        rv = mpriv->browser->ForceEncoding (encoding);
        if (NS_FAILED (rv)) return;
    }

    gtk_moz_embed_reload (mpriv->moz_embed,
                  GTK_MOZ_EMBED_FLAG_RELOADCHARSETCHANGE);
}

static char *
impl_get_encoding (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    nsCString encoding;

    rv = mpriv->browser->GetEncoding (encoding);

    if (NS_FAILED (rv) || !encoding.Length())
    {
        return NULL;
    }

    return g_strdup (encoding.get());
}

static gboolean
impl_has_automatic_encoding (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;
    nsCString encoding;

    rv = mpriv->browser->GetForcedEncoding (encoding);

    if (NS_FAILED (rv) || !encoding.Length())
    {
        return TRUE;
    }

    return FALSE;
}

static gboolean
impl_has_modified_forms (EphyEmbed *embed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    nsresult rv;

    PRBool modified;
    rv = mpriv->browser->GetHasModifiedForms (&modified);

    return NS_SUCCEEDED (rv) ? modified : FALSE;
}

static EphyHistoryItem*
mozilla_get_nth_history_item (MozillaEmbed *embed,
                  gboolean is_relative,
                  int nth)
{
    EphyHistoryItem *item = NULL;

    if (is_relative)
    {
        nth += impl_shistory_get_pos (EPHY_EMBED (embed));
    }
    
    if (nth >= 0 && nth <= impl_shistory_n_items (EPHY_EMBED (embed)))
    {
        item = (EphyHistoryItem*)mozilla_history_item_new (embed, nth);
    }

    return item;
}

static GList*
mozilla_construct_history_list (MozillaEmbed *embed, int start, int end)
{
    GList *list = NULL;
    EphyHistoryItem *item;

    while (start != end)
    {
        item = mozilla_get_nth_history_item (embed, FALSE, start);
        list = g_list_prepend (list, item);

        if (start < end)
            start++;
        else
            start--;
    }

    return g_list_reverse (list);
}

static GList*
impl_get_backward_history (EphyEmbed *embed)
{
    MozillaEmbed *membed = MOZILLA_EMBED (embed);
    int start = impl_shistory_get_pos (embed) + -1;

    return mozilla_construct_history_list (membed, start, -1);
}

static GList*
impl_get_forward_history (EphyEmbed *embed)
{
    MozillaEmbed *membed = MOZILLA_EMBED (embed);
    int start = impl_shistory_get_pos (embed) + 1;
    int end = impl_shistory_n_items (embed);

    return mozilla_construct_history_list (membed, start, end);
}

static EphyHistoryItem*
impl_get_next_history_item (EphyEmbed *embed)
{
    return mozilla_get_nth_history_item (MOZILLA_EMBED (embed),
                         TRUE,
                         +1);
}

static EphyHistoryItem*
impl_get_previous_history_item (EphyEmbed *embed)
{
    return mozilla_get_nth_history_item (MOZILLA_EMBED (embed),
                         TRUE,
                         -1);
}

static void
impl_go_to_history_item (EphyEmbed *embed, EphyHistoryItem *item)
{
    MozillaHistoryItem *mitem = MOZILLA_HISTORY_ITEM (item);

    MOZILLA_EMBED (embed)->priv->browser->GoToHistoryIndex (mitem->nth);
}

static void
mozilla_embed_location_changed_cb (GtkMozEmbed *embed, 
                   MozillaEmbed *membed)
{
    char *location;
    EphyBaseEmbed *bembed = EPHY_BASE_EMBED (membed);

    location = gtk_moz_embed_get_location (embed);

    ephy_base_embed_location_changed (bembed, location);

    g_free (location);
}

static void
mozilla_embed_link_message_cb       (GtkMozEmbed *embed,
                     MozillaEmbed *membed)
{
    char *link_message = gtk_moz_embed_get_link_message (embed);
    ephy_base_embed_set_link_message (EPHY_BASE_EMBED (membed), link_message);
    g_free (link_message);
}

static void
update_load_state (MozillaEmbed *membed, gint state)
{
    MozillaEmbedPrivate *priv = membed->priv;
    GtkMozEmbed *moz_embed = priv->moz_embed;

    if (state & GTK_MOZ_EMBED_FLAG_IS_DOCUMENT &&
        state & (GTK_MOZ_EMBED_FLAG_START | GTK_MOZ_EMBED_FLAG_STOP))
    {
        g_signal_emit_by_name (membed, "ge-document-type",
                       priv->browser->GetDocumentType ());
    }

    if (state & GTK_MOZ_EMBED_FLAG_RESTORING &&
        priv->load_state == MOZILLA_EMBED_LOAD_STARTED)
    {
        priv->load_state = MOZILLA_EMBED_LOAD_LOADING;

        char *address;
        address = gtk_moz_embed_get_location (moz_embed);
        ephy_base_embed_popups_manager_reset (EPHY_BASE_EMBED (membed));
        ephy_base_embed_restore_zoom_level (EPHY_BASE_EMBED (membed), address);
        g_free (address);
    }

    if (state & GTK_MOZ_EMBED_FLAG_IS_NETWORK)
    {
        if (state & GTK_MOZ_EMBED_FLAG_START)
        {
            priv->load_state = MOZILLA_EMBED_LOAD_STARTED;
        }
        else if (state & GTK_MOZ_EMBED_FLAG_STOP)
        {
            priv->load_state = MOZILLA_EMBED_LOAD_STOPPED;
        }
    }
    else if (state & GTK_MOZ_EMBED_FLAG_START &&
         state & GTK_MOZ_EMBED_FLAG_IS_REQUEST)
    {
        if (priv->load_state == MOZILLA_EMBED_LOAD_REDIRECTING)
        {
            priv->load_state = MOZILLA_EMBED_LOAD_STARTED;
        }
        else if (priv->load_state != MOZILLA_EMBED_LOAD_LOADING)
        {
            priv->load_state = MOZILLA_EMBED_LOAD_LOADING;

            char *address;
            address = gtk_moz_embed_get_location (moz_embed);
            ephy_base_embed_popups_manager_reset (EPHY_BASE_EMBED (membed));
            ephy_base_embed_restore_zoom_level (EPHY_BASE_EMBED (membed), address);
            g_free (address);
        }
    }
    else if (state & GTK_MOZ_EMBED_FLAG_REDIRECTING &&
         priv->load_state == MOZILLA_EMBED_LOAD_STARTED)
    {
        priv->load_state = MOZILLA_EMBED_LOAD_REDIRECTING;
    }
}

static void
mozilla_embed_net_state_all_cb (GtkMozEmbed *embed, const char *aURI,
                gint state, guint status, 
                MozillaEmbed *membed)
{
    EphyEmbedNetState estate = EPHY_EMBED_STATE_UNKNOWN;
    int i;

    struct
    {
        guint state;
        EphyEmbedNetState embed_state;
    }
    conversion_map [] =
    {
        { GTK_MOZ_EMBED_FLAG_START, EPHY_EMBED_STATE_START },
        { GTK_MOZ_EMBED_FLAG_STOP, EPHY_EMBED_STATE_STOP },
        { GTK_MOZ_EMBED_FLAG_REDIRECTING, EPHY_EMBED_STATE_REDIRECTING },
        { GTK_MOZ_EMBED_FLAG_TRANSFERRING, EPHY_EMBED_STATE_TRANSFERRING },
        { GTK_MOZ_EMBED_FLAG_NEGOTIATING, EPHY_EMBED_STATE_NEGOTIATING },
        { GTK_MOZ_EMBED_FLAG_IS_REQUEST, EPHY_EMBED_STATE_IS_REQUEST },
        { GTK_MOZ_EMBED_FLAG_IS_DOCUMENT, EPHY_EMBED_STATE_IS_DOCUMENT },
        { GTK_MOZ_EMBED_FLAG_IS_NETWORK, EPHY_EMBED_STATE_IS_NETWORK },
        { GTK_MOZ_EMBED_FLAG_RESTORING, EPHY_EMBED_STATE_RESTORING },
        { 0, EPHY_EMBED_STATE_UNKNOWN }
    };

    for (i = 0; conversion_map[i].state != 0; i++)
    {
        if (state & conversion_map[i].state)
        {
            estate = (EphyEmbedNetState) (estate | conversion_map[i].embed_state);  
        }
    }

    update_load_state (membed, state);
    ephy_base_embed_update_from_net_state (EPHY_BASE_EMBED (membed), aURI, (EphyEmbedNetState)estate);
}

static gboolean
mozilla_embed_emit_mouse_signal (MozillaEmbed *embed,
                 gpointer dom_event, 
                 const char *signal_name)
{
    MozillaEmbedPrivate *mpriv = embed->priv;
    MozillaEmbedEvent *info;
    EventContext event_context;
    gint return_value = FALSE;
    nsresult rv;

    if (dom_event == NULL) return FALSE;

    nsCOMPtr<nsIDOMMouseEvent> ev = static_cast<nsIDOMMouseEvent*>(dom_event);
    NS_ENSURE_TRUE (ev, FALSE);
    nsCOMPtr<nsIDOMEvent> dev = do_QueryInterface (ev);
    NS_ENSURE_TRUE (dev, FALSE);

    info = mozilla_embed_event_new (static_cast<gpointer>(dev));

    event_context.Init (mpriv->browser);
    rv = event_context.GetMouseEventInfo (ev, MOZILLA_EMBED_EVENT (info));
    if (NS_FAILED (rv))
    {
        g_object_unref (info);
        return FALSE;
    }

    nsCOMPtr<nsIDOMDocument> domDoc;
    rv = event_context.GetTargetDocument (getter_AddRefs(domDoc));
    if (NS_SUCCEEDED (rv))
    {
        mpriv->browser->PushTargetDocument (domDoc);

        g_signal_emit_by_name (embed, signal_name, 
                       info, &return_value); 
        mpriv->browser->PopTargetDocument ();
    }

    g_object_unref (info);

    return return_value;
}

static gboolean
mozilla_embed_dom_mouse_click_cb (GtkMozEmbed *embed,
                  gpointer dom_event, 
                  MozillaEmbed *membed)
{
    return mozilla_embed_emit_mouse_signal (membed, dom_event,
                        "ge_dom_mouse_click");
}

static gboolean
mozilla_embed_dom_mouse_down_cb (GtkMozEmbed *embed, gpointer dom_event, 
                 MozillaEmbed *membed)
{
    return mozilla_embed_emit_mouse_signal (membed, dom_event,
                        "ge_dom_mouse_down");
}

static gint
mozilla_embed_dom_key_press_cb (GtkMozEmbed *embed,
                gpointer dom_event, 
                MozillaEmbed *membed)
{
    gint retval = FALSE;

    if (dom_event == NULL) return FALSE;

    nsCOMPtr<nsIDOMKeyEvent> ev = static_cast<nsIDOMKeyEvent*>(dom_event);
    NS_ENSURE_TRUE (ev, FALSE);

    if (!EventContext::CheckKeyPress (ev)) return FALSE;

    GdkEvent *event = gtk_get_current_event ();
    if (event == NULL) return FALSE; /* shouldn't happen! */

    g_return_val_if_fail (GDK_KEY_PRESS == event->type, FALSE);

    g_signal_emit_by_name (EPHY_EMBED (membed),
                   "ge-search-key-press", event, &retval);

    gdk_event_free (event);

    return retval;
}

EphyEmbedChrome
_mozilla_embed_translate_chrome (GtkMozEmbedChromeFlags flags)
{
    static const struct
    {
        guint mozilla_flag;
        guint ephy_flag;
    }
    conversion_map [] =
    {
        { GTK_MOZ_EMBED_FLAG_MENUBARON, EPHY_EMBED_CHROME_MENUBAR },
        { GTK_MOZ_EMBED_FLAG_TOOLBARON, EPHY_EMBED_CHROME_TOOLBAR },
        { GTK_MOZ_EMBED_FLAG_STATUSBARON, EPHY_EMBED_CHROME_STATUSBAR },
        { GTK_MOZ_EMBED_FLAG_PERSONALTOOLBARON, EPHY_EMBED_CHROME_BOOKMARKSBAR },
    };

    guint mask = 0, i;

    for (i = 0; i < G_N_ELEMENTS (conversion_map); i++)
    {
        if (flags & conversion_map[i].mozilla_flag)
        {
            mask |= conversion_map[i].ephy_flag;
        }
    }

    return (EphyEmbedChrome) mask;
}

static void
mozilla_embed_new_window_cb (GtkMozEmbed *embed, 
                 GtkMozEmbed **newEmbed,
                 guint chrome_mask, 
                 MozillaEmbed *membed)
{
    GtkMozEmbedChromeFlags chrome = (GtkMozEmbedChromeFlags) chrome_mask;
    EphyEmbed *new_embed = NULL;
    GObject *single;
    EphyEmbedChrome mask;

    if (chrome & GTK_MOZ_EMBED_FLAG_OPENASCHROME)
    {
        *newEmbed = _mozilla_embed_new_xul_dialog ();
        return;
    }

    mask = _mozilla_embed_translate_chrome (chrome);

    single = ephy_embed_shell_get_embed_single (embed_shell);
    g_signal_emit_by_name (single, "new-window", embed, mask,
                   &new_embed);

    g_assert (new_embed != NULL);

    gtk_moz_embed_set_chrome_mask (embed, chrome);

    g_signal_emit_by_name (membed, "ge-new-window", new_embed);

    *newEmbed = GTK_MOZ_EMBED (gtk_bin_get_child (GTK_BIN (new_embed)));
}

static void
mozilla_embed_security_change_cb (GtkMozEmbed *embed, 
                  gpointer requestptr,
                  PRUint32 state,
                  MozillaEmbed *membed)
{
    ephy_base_embed_set_security_level (EPHY_BASE_EMBED (membed),
                        mozilla_embed_security_level (state));
}

static void
mozilla_embed_title_change_cb       (GtkMozEmbed *embed,
                     MozillaEmbed *membed)
{
    GObject *object = G_OBJECT (embed);
    char *title;

    title = gtk_moz_embed_get_title (embed);

    g_object_freeze_notify (object);

    ephy_base_embed_set_title (EPHY_BASE_EMBED (membed), title);
    ephy_base_embed_set_loading_title (EPHY_BASE_EMBED (membed),
                       title, FALSE);

    g_free (title);

    g_object_thaw_notify (object);
}

static gboolean
mozilla_embed_open_uri_cb (GtkMozEmbed *embed,
               const char *uri,
               MozillaEmbed *membed)
{
    /* Set the address here if we have a blank page.
     * See bug #147840.
     */
    if (ephy_embed_get_is_blank (EPHY_EMBED (membed)))
    {
        EphyBaseEmbed *bembed = EPHY_BASE_EMBED (membed);


        ephy_base_embed_set_address (bembed, uri);
        ephy_base_embed_set_loading_title (bembed, uri, TRUE);
    }

    /* allow load to proceed */
    return FALSE;
}

static void
mozilla_embed_visibility_cb (GtkMozEmbed *embed,
                 gboolean visibility,
                 MozillaEmbed *membed)
{
  ephy_base_embed_set_visibility (EPHY_BASE_EMBED (membed), visibility);
}

static gboolean
let_me_resize_hack (MozillaEmbed *embed)
{
    GtkWidget *window;
    MozillaEmbedPrivate *priv = embed->priv;

    window = gtk_widget_get_toplevel (GTK_WIDGET (embed));

    if (window && GTK_WIDGET_TOPLEVEL (window))
      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);

    priv->idle_resize_handler = 0;

    return FALSE;
}

static void
ephy_tab_set_size (MozillaEmbed *embed,
           int width,
           int height)
{
    MozillaEmbedPrivate *priv = embed->priv;
    GtkWidget *widget = GTK_WIDGET (embed);
    GtkAllocation allocation;

    gtk_widget_set_size_request (widget, width, height);

    /* HACK: When the web site changes both width and height,
     * we will first get a width change, then a height change,
     * without actually resizing the window in between (since
     * that happens only on idle).
     * If we don't set the allocation, GtkMozEmbed doesn't tell
     * mozilla the new width, so the height change sets the width
     * back to the old value!
     */
    allocation.x = widget->allocation.x;
    allocation.y = widget->allocation.y;
    allocation.width = width;
    allocation.height = height;
    gtk_widget_size_allocate (widget, &allocation);

    /* 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.
     */
    if (priv->idle_resize_handler == 0)
    {
        priv->idle_resize_handler =
            g_idle_add ((GSourceFunc) let_me_resize_hack, embed);
    }
}

static void
mozilla_embed_size_to_cb (GtkMozEmbed *embed,
              int width,
              int height,
              MozillaEmbed *membed)
{
    GtkWidget *widget;
    EphyEmbedContainer *container;
    MozillaEmbedPrivate *priv = MOZILLA_EMBED (membed)->priv;
    GtkWidget *embed_widget = GTK_WIDGET (membed);
    GdkScreen *screen;
    GdkRectangle rect;
    int monitor;
    int ww, wh, ew, eh, dw, dh;

    container = EPHY_EMBED_CONTAINER (gtk_widget_get_toplevel (GTK_WIDGET (embed)));
    if (! container || !GTK_WIDGET_TOPLEVEL (container))
      return;

    /* FIXME: allow sizing also for non-popup single-tab windows? */
    if (EPHY_EMBED (membed) != ephy_embed_container_get_active_child (container) ||
        ! ephy_embed_container_get_is_popup (container))
      return;

    widget = GTK_WIDGET (container);

    LOG ("mozilla_embed_size_to_cb window %p embed %p width %d height %d", widget, embed, width, height);

    /* contrain size so that the window will be fully contained within the screen */
    screen = gtk_widget_get_screen (widget);
    monitor = gdk_screen_get_monitor_at_window (screen, widget->window);
    gdk_screen_get_monitor_geometry (screen, monitor, &rect);
    /* FIXME: get and subtract the panel size */

    gtk_window_get_size (GTK_WINDOW (widget), &ww, &wh);

    ew = embed_widget->allocation.width;
    eh = embed_widget->allocation.height;

    /* This should approximate the chrome extent */
    dw = ww - ew; dw = MAX (dw, 0); dw = MIN (dw, rect.width - 1);
    dh = wh - eh; dh = MAX (dh, 0); dh = MIN (dh, rect.height - 1);

    width = MIN (rect.width - dw, width);
    height = MIN (rect.height - dh, height);

    /* FIXME: move window if this will place it partially outside the screen rect? */

    gtk_window_set_resizable (GTK_WINDOW (widget), FALSE);
    ephy_tab_set_size (membed, width, height);

    if (priv->idle_resize_handler == 0)
    {
        priv->idle_resize_handler =
            g_idle_add ((GSourceFunc) let_me_resize_hack, membed);
    }
}

static EphyEmbedSecurityLevel
mozilla_embed_security_level (PRUint32 state)
{
    EphyEmbedSecurityLevel level;

    switch (state)
    {
    case nsIWebProgressListener::STATE_IS_INSECURE:
        level = EPHY_EMBED_STATE_IS_INSECURE;
        break;
    case nsIWebProgressListener::STATE_IS_BROKEN:
        level = EPHY_EMBED_STATE_IS_BROKEN;
        break;
    case nsIWebProgressListener::STATE_IS_SECURE|
         nsIWebProgressListener::STATE_SECURE_HIGH:
        level = EPHY_EMBED_STATE_IS_SECURE_HIGH;
        break;
    case nsIWebProgressListener::STATE_IS_SECURE|
         nsIWebProgressListener::STATE_SECURE_MED:
        level = EPHY_EMBED_STATE_IS_SECURE_MED;
        break;
    case nsIWebProgressListener::STATE_IS_SECURE|
         nsIWebProgressListener::STATE_SECURE_LOW:
        level = EPHY_EMBED_STATE_IS_SECURE_LOW;
        break;
    default:
        level = EPHY_EMBED_STATE_IS_UNKNOWN;
        break;
    }
    return level;
}

static void
ephy_embed_iface_init (EphyEmbedIface *iface)
{
    iface->load_url = impl_load_url; 
    iface->load = impl_load; 
    iface->stop_load = impl_stop_load;
    iface->can_go_back = impl_can_go_back;
    iface->can_go_forward =impl_can_go_forward;
    iface->can_go_up = impl_can_go_up;
    iface->get_go_up_list = impl_get_go_up_list;
    iface->go_back = impl_go_back;
    iface->go_forward = impl_go_forward;
    iface->go_up = impl_go_up;
    iface->get_location = impl_get_location;
    iface->get_js_status = impl_get_js_status;
    iface->reload = impl_reload;
    iface->set_zoom = impl_set_zoom;
    iface->get_zoom = impl_get_zoom;
    iface->scroll_lines = impl_scroll_lines;
    iface->scroll_pages = impl_scroll_pages;
    iface->scroll_pixels = impl_scroll_pixels;
    iface->shistory_copy = impl_shistory_copy;
    iface->show_page_certificate = impl_show_page_certificate;
    iface->close = impl_close;
    iface->set_encoding = impl_set_encoding;
    iface->get_encoding = impl_get_encoding;
    iface->has_automatic_encoding = impl_has_automatic_encoding;
    iface->print = impl_print;
    iface->set_print_preview_mode = impl_set_print_preview_mode;
    iface->print_preview_n_pages = impl_print_preview_n_pages;
    iface->print_preview_navigate = impl_print_preview_navigate;
    iface->has_modified_forms = impl_has_modified_forms;
    iface->get_security_level = impl_get_security_level;
    iface->get_backward_history = impl_get_backward_history;
    iface->get_forward_history = impl_get_forward_history;
    iface->get_next_history_item = impl_get_next_history_item;
    iface->get_previous_history_item = impl_get_previous_history_item;
    iface->go_to_history_item = impl_go_to_history_item;
}

static void
xul_visibility_cb (GtkWidget *embed, gboolean visibility, GtkWidget *window)
{
    if (visibility)
    {
        gtk_widget_show (window);
    }
    else
    {
        gtk_widget_hide (window);
    }
}

static void
xul_size_to_cb (GtkWidget *embed, gint width, gint height, gpointer dummy)
{
    gtk_widget_set_size_request (embed, width, height);
}

static void
xul_new_window_cb (GtkMozEmbed *embed,
           GtkMozEmbed **retval, 
           guint chrome_mask,
           gpointer dummy)
{
    g_assert (chrome_mask & GTK_MOZ_EMBED_FLAG_OPENASCHROME);

    *retval = _mozilla_embed_new_xul_dialog ();
}

static void
xul_title_cb (GtkMozEmbed *embed,
          GtkWindow *window)
{
    char *title;

    title = gtk_moz_embed_get_title (embed);
    gtk_window_set_title (window, title);
    g_free (title);
}

GtkMozEmbed *
_mozilla_embed_new_xul_dialog (void)
{
    GtkWidget *window, *embed;

    g_object_ref (embed_shell);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    g_object_set_data_full (G_OBJECT (window), "EmbedShellRef",
                embed_shell,
                (GDestroyNotify) g_object_unref);
    g_signal_connect_object (embed_shell, "prepare_close",
                 G_CALLBACK (gtk_widget_destroy), window,
                 (GConnectFlags) G_CONNECT_SWAPPED);

    embed = gtk_moz_embed_new ();
    gtk_widget_show (embed);
    gtk_container_add (GTK_CONTAINER (window), embed);

    g_signal_connect_object (embed, "destroy_browser",
                 G_CALLBACK (gtk_widget_destroy),
                 window, G_CONNECT_SWAPPED);
    g_signal_connect_object (embed, "visibility",
                 G_CALLBACK (xul_visibility_cb),
                 window, (GConnectFlags) 0);
    g_signal_connect_object (embed, "size_to",
                 G_CALLBACK (xul_size_to_cb),
                 NULL, (GConnectFlags) 0);
    g_signal_connect_object (embed, "new_window",
                 G_CALLBACK (xul_new_window_cb),
                 NULL, (GConnectFlags) 0);
    g_signal_connect_object (embed, "title",
                 G_CALLBACK (xul_title_cb),
                 window, (GConnectFlags) 0);

    return GTK_MOZ_EMBED (embed);
}

EphyBrowser*
_mozilla_embed_get_browser (MozillaEmbed *embed)
{
    g_return_val_if_fail (MOZILLA_IS_EMBED (embed), NULL);

    return embed->priv->browser;
}