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

/*
 *  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.
 *
 *  $Id$
 */

#include "ephy-command-manager.h"
#include "ephy-string.h"
#include "ephy-embed.h"
#include "ephy-debug.h"
#include "mozilla-embed.h"
#include "MozillaPrivate.h"
#include "EphyBrowser.h"
#include "EventContext.h"
#include "ephy-debug.h"

#include <gtkmozembed.h>
#include <gtkmozembed_internal.h>
#include <nsIWindowWatcher.h>
#include <nsIURI.h>
#include <nsIURL.h>
#include <nsNetUtil.h>
#include <nsString.h>
#include <nsIRequest.h>
#include <nsIWebProgressListener.h>
#include <nsITransportSecurityInfo.h>
#include <nsIPrintOptions.h>
#include <nsGfxCIID.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
ephy_embed_init (EphyEmbedClass *embed_class);

static void
impl_get_capabilities (EphyEmbed *embed,
                       EmbedCapabilities *caps);
static gresult 
impl_load_url (EphyEmbed *embed, 
               const char *url);
static gresult 
impl_stop_load (EphyEmbed *embed);
static gresult 
impl_can_go_back (EphyEmbed *embed);
static gresult 
impl_can_go_forward (EphyEmbed *embed);
static gresult 
impl_can_go_up (EphyEmbed *embed);
static gresult
impl_get_go_up_list (EphyEmbed *embed, GSList **l);
static gresult 
impl_go_back (EphyEmbed *embed);
static gresult  
impl_go_forward (EphyEmbed *embed);
static gresult
impl_go_up (EphyEmbed *embed);
static gresult 
impl_render_data (EphyEmbed *embed, 
                  const char *data,
                  guint32 len,
                  const char *base_uri, 
                  const char *mime_type);
static gresult
impl_open_stream (EphyEmbed *embed,
                  const char *base_uri,
                  const char *mime_type);
static gresult
impl_append_data (EphyEmbed *embed,
                  const char *data, 
                  guint32 len);
static gresult
impl_close_stream (EphyEmbed *embed);
static gresult
impl_get_title (EphyEmbed *embed,
                char **title);
static gresult 
impl_get_location (EphyEmbed *embed, 
                   gboolean toplevel,
                   char **location);
static gresult 
impl_reload (EphyEmbed *embed, 
             EmbedReloadFlags flags);
static gresult
impl_zoom_set (EphyEmbed *embed, 
               float zoom, 
               gboolean reflow);
static gresult
impl_zoom_get (EphyEmbed *embed,
               float *zoom);
static gresult
impl_shistory_count  (EphyEmbed *embed,
                      int *count);
static gresult
impl_shistory_get_nth (EphyEmbed *embed, 
                       int nth,
                       gboolean is_relative,
                       char **url,
                       char **title);
static gresult
impl_shistory_get_pos (EphyEmbed *embed,
                       int *pos);
static gresult
impl_shistory_go_nth (EphyEmbed *embed, 
                      int nth);
static gresult
impl_get_security_level (EphyEmbed *embed, 
                         EmbedSecurityLevel *level,
                         char **description);
static gresult
impl_set_encoding (EphyEmbed *embed,
                   const char *encoding);
static gresult
impl_get_encoding_info (EphyEmbed *embed,
            EphyEncodingInfo **info);
static gresult
impl_print (EphyEmbed *embed, 
            EmbedPrintInfo *info);

static gresult
impl_print_preview_close (EphyEmbed *embed);

static gresult
impl_print_preview_num_pages (EphyEmbed *embed,
                  gint *retNum);
static gresult
impl_print_preview_navigate (EphyEmbed *embed,
                 EmbedPrintPreviewNavType navType,
                 gint pageNum);

static void 
mozilla_embed_connect_signals (MozillaEmbed *membed);
static char *
mozilla_embed_get_uri_parent (const char *uri);
static void
mozilla_embed_location_changed_cb (GtkMozEmbed *embed, MozillaEmbed *membed);
static void
mozilla_embed_title_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 void
mozilla_embed_progress_cb (GtkMozEmbed *embed, const char *aURI,
                           gint curprogress, gint maxprogress, MozillaEmbed *membed);
static void
mozilla_embed_link_message_cb (GtkMozEmbed *embed, MozillaEmbed *membed);
static void
mozilla_embed_js_status_cb (GtkMozEmbed *embed, MozillaEmbed *membed);
static void
mozilla_embed_visibility_cb (GtkMozEmbed *embed, gboolean visibility, MozillaEmbed *membed);
static void
mozilla_embed_destroy_brsr_cb (GtkMozEmbed *embed, MozillaEmbed *embed);
static gint
mozilla_embed_dom_mouse_click_cb (GtkMozEmbed *embed, gpointer dom_event, MozillaEmbed *membed);
static gint
mozilla_embed_dom_mouse_down_cb (GtkMozEmbed *embed, gpointer dom_event, 
                 MozillaEmbed *membed);
static void
mozilla_embed_size_to_cb (GtkMozEmbed *embed, gint width, gint height, MozillaEmbed *membed);
static void
mozilla_embed_new_window_cb (GtkMozEmbed *embed, 
                 GtkMozEmbed **newEmbed,
                             guint chromemask, MozillaEmbed *membed);
static void
mozilla_embed_security_change_cb (GtkMozEmbed *embed, 
                  gpointer request,
                                  guint state, MozillaEmbed *membed);
static EmbedSecurityLevel
mozilla_embed_security_level (MozillaEmbed *membed);
static gint
mozilla_embed_dom_key_down_cb (GtkMozEmbed *embed, gpointer dom_event,
                       MozillaEmbed *membed);

/* signals to connect on each embed widget */
static const struct
{ 
    char *event; 
        void *func; /* should be a GtkSignalFunc or similar */
}
signal_connections[] =
{
    { "location",        (void *) mozilla_embed_location_changed_cb  },
        { "title",           (void *) mozilla_embed_title_changed_cb     },
        { "net_state_all",   (void *) mozilla_embed_net_state_all_cb     },
        { "progress_all",    (void *) mozilla_embed_progress_cb          },
        { "link_message",    (void *) mozilla_embed_link_message_cb      },
        { "js_status",       (void *) mozilla_embed_js_status_cb         },
        { "visibility",      (void *) mozilla_embed_visibility_cb        },
        { "destroy_browser", (void *) mozilla_embed_destroy_brsr_cb      },
        { "dom_mouse_click", (void *) mozilla_embed_dom_mouse_click_cb   },
    { "dom_mouse_down",  (void *) mozilla_embed_dom_mouse_down_cb    },
        { "size_to",         (void *) mozilla_embed_size_to_cb           },
        { "new_window",      (void *) mozilla_embed_new_window_cb        },
        { "security_change", (void *) mozilla_embed_security_change_cb   },
    { "dom_key_down",    (void *) mozilla_embed_dom_key_down_cb      },

        /* terminator -- must be last in the list! */
        { NULL, NULL } 
};

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

struct MozillaEmbedPrivate
{
    EphyBrowser *browser;
    nsCOMPtr<nsIRequest> request;
    gint security_state;
};

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

static NS_DEFINE_CID(kPrintOptionsCID, NS_PRINTOPTIONS_CID);

static GObjectClass *parent_class = NULL;

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

        result = mpriv->browser->DoCommand (command);
    
    return result ? G_OK : G_FAILED;
}

static gresult
impl_manager_get_command_state (EphyCommandManager *manager,
                    const char *command,
                    gboolean *enabled) 
{
    nsresult result;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(manager)->priv;

        result = mpriv->browser->GetCommandState (command, enabled);
    
    return result ? G_OK : G_FAILED;
}

static void
ephy_command_manager_init (EphyCommandManagerClass *manager_class)
{
    manager_class->do_command = impl_manager_do_command;
    manager_class->get_command_state = impl_manager_get_command_state;
}
    
GType 
mozilla_embed_get_type (void)
{
        static GType mozilla_embed_type = 0;

        if (mozilla_embed_type == 0)
        {
                static const GTypeInfo our_info =
                {
                        sizeof (MozillaEmbedClass),
                        NULL, /* base_init */
                        NULL, /* base_finalize */
                        (GClassInitFunc) mozilla_embed_class_init,
                        NULL,
                        NULL, /* class_data */
                        sizeof (MozillaEmbed),
                        0, /* n_preallocs */
                        (GInstanceInitFunc) mozilla_embed_init
                };

        static const GInterfaceInfo embed_info =
        {
            (GInterfaceInitFunc) ephy_embed_init,
                NULL,
                NULL
            };

        static const GInterfaceInfo ephy_command_manager_info =
        {
            (GInterfaceInitFunc) ephy_command_manager_init,
                NULL,
                NULL
             };
    
                mozilla_embed_type = g_type_register_static (GTK_TYPE_MOZ_EMBED,
                                 "MozillaEmbed",
                                 &our_info, 
                                 (GTypeFlags)0);
        g_type_add_interface_static (mozilla_embed_type,
                                         EPHY_TYPE_EMBED,
                                         &embed_info);
        g_type_add_interface_static (mozilla_embed_type,
                                         EPHY_TYPE_COMMAND_MANAGER,
                                         &ephy_command_manager_info);
        }

        return mozilla_embed_type;
}

static gresult
impl_find_next (EphyEmbed *embed, 
                gboolean backwards)
{
    nsresult result = NS_OK;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

        PRBool didFind;

        result = mpriv->browser->Find (backwards, &didFind);
    
    return didFind ? G_OK : G_FAILED;
}

static gresult
impl_activate (EphyEmbed *embed) 
{
    g_return_val_if_fail (EPHY_IS_EMBED (embed), G_FAILED);

    gtk_widget_grab_focus (GTK_BIN (embed)->child);
    
    return G_OK;
}

static gresult
impl_find_set_properties (EphyEmbed *embed, 
                          char *search_string,
                      gboolean case_sensitive,
              gboolean wrap_around)
{
    nsresult result = NS_OK;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

        result = mpriv->browser->FindSetProperties
        ((NS_ConvertUTF8toUCS2(search_string)).get(),
         case_sensitive, wrap_around); 
    
    return result ? G_OK : G_FAILED;
}

static void
ephy_embed_init (EphyEmbedClass *embed_class)
{
    embed_class->get_capabilities = impl_get_capabilities;
    embed_class->load_url = impl_load_url; 
    embed_class->stop_load = impl_stop_load;
    embed_class->can_go_back = impl_can_go_back;
    embed_class->can_go_forward =impl_can_go_forward;
    embed_class->can_go_up = impl_can_go_up;
    embed_class->get_go_up_list = impl_get_go_up_list;
    embed_class->go_back = impl_go_back;
    embed_class->go_forward = impl_go_forward;
    embed_class->go_up = impl_go_up;
    embed_class->render_data = impl_render_data;
    embed_class->open_stream = impl_open_stream;
    embed_class->append_data = impl_append_data;
    embed_class->close_stream = impl_close_stream;
    embed_class->get_title = impl_get_title;
    embed_class->get_location = impl_get_location;
    embed_class->reload = impl_reload;
    embed_class->zoom_set = impl_zoom_set;
    embed_class->zoom_get = impl_zoom_get;
    embed_class->shistory_count = impl_shistory_count;
    embed_class->shistory_get_nth = impl_shistory_get_nth;
    embed_class->shistory_get_pos = impl_shistory_get_pos;
    embed_class->shistory_go_nth = impl_shistory_go_nth;
    embed_class->get_security_level = impl_get_security_level;
    embed_class->find_next = impl_find_next;
    embed_class->activate = impl_activate;
    embed_class->find_set_properties = impl_find_set_properties;
    embed_class->set_encoding = impl_set_encoding;
    embed_class->get_encoding_info = impl_get_encoding_info;
    embed_class->print = impl_print;
    embed_class->print_preview_close = impl_print_preview_close;
    embed_class->print_preview_num_pages = impl_print_preview_num_pages;
    embed_class->print_preview_navigate = impl_print_preview_navigate;
}

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

    (* GTK_WIDGET_CLASS(parent_class)->realize) (widget);

    nsresult result;
    result = mpriv->browser->Init (GTK_MOZ_EMBED (widget));

    if (NS_FAILED(result))
    {
                g_warning ("Browser initialization failed");
    }
}

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); 

    parent_class = (GObjectClass *) g_type_class_peek_parent (klass);

    gtk_object_class->destroy = mozilla_embed_destroy;
    widget_class->realize = mozilla_embed_realize;

    g_type_class_add_private (object_class, sizeof(MozillaEmbedPrivate));
}

static void
mozilla_embed_init (MozillaEmbed *embed)
{
        embed->priv = MOZILLA_EMBED_GET_PRIVATE (embed);

    embed->priv->browser = new EphyBrowser ();
    embed->priv->security_state = -1;

    mozilla_embed_connect_signals (embed);
}

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_connect_signals (MozillaEmbed *embed)
{
        gint i;
    EphyEmbed *gembed;

    gembed = EPHY_EMBED (embed);
           
        /* connect signals */
        for (i = 0; signal_connections[i].event != NULL; i++)
        {
                g_signal_connect (G_OBJECT(embed),
                                  signal_connections[i].event,
                                  G_CALLBACK(signal_connections[i].func), 
                                  embed);
        }
}

static void
mozilla_embed_destroy (GtkObject *object)
{
    int i;
    MozillaEmbed *embed = MOZILLA_EMBED (object);
    
    for (i = 0; signal_connections[i].event != NULL; i++)
        {
                g_signal_handlers_disconnect_by_func
            (G_OBJECT(object),
                         (gpointer)signal_connections[i].func, 
                         (void *)object);
        }

    if (embed->priv->browser)
    {
        embed->priv->browser->Destroy();
            delete embed->priv->browser;
            embed->priv->browser = NULL;
    }
    
    GTK_OBJECT_CLASS (parent_class)->destroy (object);
}

static void
impl_get_capabilities (EphyEmbed *embed,
                       EmbedCapabilities *caps)
{
    EmbedCapabilities mozilla_caps;
    
    mozilla_caps = (EmbedCapabilities) ( 
        EMBED_CLIPBOARD_CAP |
            EMBED_COOKIES_CAP |
            EMBED_LINKS_CAP |
            EMBED_ZOOM_CAP |
            EMBED_PRINT_CAP |
            EMBED_FIND_CAP |
            EMBED_SECURITY_CAP |
            EMBED_ENCODING_CAP |
            EMBED_SHISTORY_CAP );
    
    *caps = mozilla_caps;
}

static gresult 
impl_load_url (EphyEmbed *embed, 
               const char *url)
{
        gtk_moz_embed_load_url (GTK_MOZ_EMBED(embed),
                                url);

    return G_OK;
}

static gresult 
impl_stop_load (EphyEmbed *embed)
{
    gtk_moz_embed_stop_load (GTK_MOZ_EMBED(embed)); 
    
    return G_OK;
}

static gresult 
impl_can_go_back (EphyEmbed *embed)
{
    if (gtk_moz_embed_can_go_back (GTK_MOZ_EMBED(embed)))
    {
        return G_OK;
    }
    else
    {
        return G_FAILED;
    }
}

static gresult 
impl_can_go_forward (EphyEmbed *embed)
{
    if (gtk_moz_embed_can_go_forward (GTK_MOZ_EMBED(embed)))
    {
        return G_OK;
    }
    else
    {
        return G_FAILED;
    }

}

static gresult 
impl_can_go_up (EphyEmbed *embed)
{
    char *location;
    char *s;
    gresult result;

    if (ephy_embed_get_location (embed, TRUE, &location) != G_OK)
      return G_FAILED;
    g_return_val_if_fail (location != NULL, G_FAILED);
    if ((s = mozilla_embed_get_uri_parent (location)) != NULL)
    {
        g_free (s);
        result = G_OK;
    }
    else
    {
        result = G_FAILED;
    }

    g_free (location);

    return result;
}

static gresult
impl_get_go_up_list (EphyEmbed *embed, GSList **l)
{
    char *location;
    char *s;
    
    if (ephy_embed_get_location (embed, TRUE, &location) != G_OK)
        return G_FAILED;
    g_return_val_if_fail (location != NULL, G_FAILED);
    
    *l = NULL;
    s = location;
    while ((s = mozilla_embed_get_uri_parent (s)) != NULL)
    {
        *l = g_slist_prepend (*l, s);
    }               

    g_free (location);
    *l = g_slist_reverse (*l);

    return G_OK;
}

static gresult 
impl_go_back (EphyEmbed *embed)
{
    gtk_moz_embed_go_back (GTK_MOZ_EMBED(embed));

    return G_OK;
}
        
static gresult  
impl_go_forward (EphyEmbed *embed)
{
    gtk_moz_embed_go_forward (GTK_MOZ_EMBED(embed));

    return G_OK;
}

static gresult
impl_go_up (EphyEmbed *embed)
{
    char *uri;
    char *parent_uri;
    
    ephy_embed_get_location (embed, TRUE, &uri);
    g_return_val_if_fail (uri != NULL, G_FAILED);
    
    parent_uri = mozilla_embed_get_uri_parent (uri);
    g_free (uri);
    g_return_val_if_fail (parent_uri != NULL, G_FAILED);
    
    ephy_embed_load_url (embed, parent_uri);

    g_free (parent_uri);

    return G_OK;
}

static char *
mozilla_embed_get_uri_parent (const char *aUri)
{
        nsresult rv;

        nsCOMPtr<nsIURI> uri;
        rv = NS_NewURI (getter_AddRefs(uri), aUri);
        if (NS_FAILED(rv) || !uri) return NULL;

        nsCOMPtr<nsIURL> url = do_QueryInterface(uri, &rv);
        if (NS_FAILED(rv) || !url) return NULL;

        nsCAutoString dirPath;
        rv = url->GetDirectory (dirPath);
        if (NS_FAILED(rv) || !dirPath.Length()) return NULL;

        nsCAutoString filePath;
        rv = url->GetFilePath (filePath);
        if (NS_FAILED(rv) || !filePath.Length()) return NULL;

        PRInt32 pathLength = filePath.Length();
        PRInt32 trailingSlash = filePath.RFind("/");

        if(pathLength < 2 || trailingSlash == -1)
        {
                return NULL;
        }

        if(trailingSlash != (pathLength-1))
        {
                uri->SetPath(dirPath);
        }
        else
        {
                PRInt32 nextSlash = filePath.RFind("/",PR_FALSE,trailingSlash-1);
                nsCAutoString parentPath;
                filePath.Left(parentPath, nextSlash);
                uri->SetPath(parentPath);
        }

        nsCAutoString spec;
        uri->GetSpec(spec);

        return !spec.IsEmpty() ? g_strdup(spec.get()) : NULL;
}

static gresult
impl_render_data (EphyEmbed *embed, 
                  const char *data,
                  guint32 len,
                  const char *base_uri, 
                  const char *mime_type)
{
    gtk_moz_embed_render_data (GTK_MOZ_EMBED(embed),
                   data,
                   len,
                   base_uri,
                   mime_type);
    
    return G_OK;
}

static gresult
impl_open_stream (EphyEmbed *embed,
                  const char *base_uri,
                  const char *mime_type)
{
    gtk_moz_embed_open_stream (GTK_MOZ_EMBED(embed),
                   base_uri, mime_type);
    
    return G_OK;
}

static gresult
impl_append_data (EphyEmbed *embed,
                  const char *data, 
                  guint32 len)
{
    gtk_moz_embed_append_data (GTK_MOZ_EMBED(embed),
                   data, len);
    
    return G_OK;
}

static gresult
impl_close_stream (EphyEmbed *embed)
{
    gtk_moz_embed_close_stream (GTK_MOZ_EMBED(embed));
    
    return G_OK;
}

static gresult
impl_get_title (EphyEmbed *embed,
                char **title)
{
    nsXPIDLString uTitle;

    *getter_Copies(uTitle) =
        gtk_moz_embed_get_title_unichar (GTK_MOZ_EMBED(embed));

    *title = g_strdup (NS_ConvertUCS2toUTF8(uTitle).get());
    
    return G_OK;
}

static gresult 
impl_get_location (EphyEmbed *embed, 
                   gboolean toplevel,
                   char **location)
{
    char *l;
    nsresult rv;
    nsCAutoString url;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    
    if (toplevel)
    {
        rv = mpriv->browser->GetDocumentUrl (url);
        l = (NS_SUCCEEDED (rv) && !url.IsEmpty()) ?
             g_strdup (url.get()) : NULL;       
    }
    else
    {
        rv = mpriv->browser->GetTargetDocumentUrl (url);
        l = (NS_SUCCEEDED (rv) && !url.IsEmpty()) ?
             g_strdup (url.get()) : NULL;       
    }

    *location = l;

    if (l == NULL) return G_FAILED;
    
    return G_OK;
}

static gresult 
impl_reload (EphyEmbed *embed, 
             EmbedReloadFlags flags)
{
    guint32 mflags;

    mflags = GTK_MOZ_EMBED_FLAG_RELOADNORMAL;
    
    if ((flags & EMBED_RELOAD_BYPASSCACHE) &&
        (flags & EMBED_RELOAD_BYPASSPROXY))
    {
        mflags = GTK_MOZ_EMBED_FLAG_RELOADBYPASSPROXYANDCACHE;
    }
    else if (flags & EMBED_RELOAD_BYPASSCACHE)
    {
        mflags = GTK_MOZ_EMBED_FLAG_RELOADBYPASSCACHE;
    }
    else if (flags & EMBED_RELOAD_BYPASSPROXY)
    {
        mflags = GTK_MOZ_EMBED_FLAG_RELOADBYPASSPROXY;
    }
    
    gtk_moz_embed_reload (GTK_MOZ_EMBED(embed),
                  mflags);
    
    return G_OK;
}

static gresult
impl_zoom_set (EphyEmbed *embed, 
               float zoom, 
               gboolean reflow)
{
    EphyBrowser *browser;
    nsresult result;

    browser = MOZILLA_EMBED(embed)->priv->browser;
    g_return_val_if_fail (browser != NULL, G_FAILED);

    result = browser->SetZoom (zoom, reflow);

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

    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static gresult
impl_zoom_get (EphyEmbed *embed,
               float *zoom)
{
    float f;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    
    nsresult result = mpriv->browser->GetZoom (&f);
    
    if (NS_SUCCEEDED (result))
    {
        *zoom = f;

        return G_OK;
    }
    else
    {
        return G_FAILED;
    }
}

static gresult
impl_shistory_count  (EphyEmbed *embed,
                      int *count)
{
    nsresult rv;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    int c, index;
    
    rv = mpriv->browser->GetSHInfo (&c, &index);

    *count = c;
    
    return NS_SUCCEEDED(rv) ? G_OK : G_FAILED;
}

static gresult
impl_shistory_get_nth (EphyEmbed *embed, 
                       int nth,
                       gboolean is_relative,
                       char **aUrl,
                       char **aTitle)
{
    nsresult rv;
        nsCAutoString url;
    PRUnichar *title;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    if (is_relative)
    {
        int pos;

        if (ephy_embed_shistory_get_pos 
            (EPHY_EMBED(embed), &pos) == G_OK)
        {
            pos += nth;
        }
        else
        {
            return G_FAILED;
        }
    }
    
        rv = mpriv->browser->GetSHUrlAtIndex(nth, url);

        *aUrl = (NS_SUCCEEDED (rv) && !url.IsEmpty()) ? g_strdup(url.get()) : NULL;

    rv = mpriv->browser->GetSHTitleAtIndex(nth, &title);

    *aTitle = g_strdup (NS_ConvertUCS2toUTF8(title).get());

    nsMemory::Free (title);

    return G_OK;
}

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

    *pos = index;
    
    return NS_SUCCEEDED(rv) ? G_OK : G_FAILED;
}

static gresult
impl_shistory_go_nth (EphyEmbed *embed, 
                      int nth)
{
    nsresult rv;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    rv = mpriv->browser->GoToHistoryIndex (nth);

    return NS_SUCCEEDED(rv) ? G_OK : G_FAILED;
}

static gresult
impl_get_security_level (EphyEmbed *embed, 
                         EmbedSecurityLevel *level,
                         char **description)
{
    nsresult result;

        nsCOMPtr<nsIChannel> channel;
    channel = do_QueryInterface (MOZILLA_EMBED(embed)->priv->request, 
                     &result);
        if (NS_FAILED (result)) return G_FAILED;

        nsCOMPtr<nsISupports> info;
        result = channel->GetSecurityInfo(getter_AddRefs(info));
        if (NS_FAILED (result)) return G_FAILED;

    *description = NULL;
    if (info)
    {
        nsCOMPtr<nsITransportSecurityInfo> secInfo(do_QueryInterface(info));
        if (!secInfo) return G_FAILED;

        nsXPIDLString tooltip;
        result = secInfo->GetShortSecurityDescription(getter_Copies(tooltip));
        if (NS_FAILED (result)) return G_FAILED;

        if (tooltip)
        {
            *description = g_strdup (NS_ConvertUCS2toUTF8(tooltip).get());
        }
    }
    
    *level = mozilla_embed_security_level (MOZILLA_EMBED (embed));
    return G_OK;
}

static gresult
impl_print (EphyEmbed *embed,
            EmbedPrintInfo *info)
{
    nsresult result = NS_OK;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

        nsCOMPtr<nsIPrintSettings> options;
        result = mpriv->browser->GetPrintSettings(getter_AddRefs(options));
        if (!NS_SUCCEEDED (result)) return G_FAILED;

    MozillaCollatePrintSettings(info, options);

        options->SetPrintSilent (PR_TRUE);

    result = mpriv->browser->Print(options, info->preview);

    /* Workaround for bug 125984 */
        options->SetPrintSilent (PR_FALSE);

    return NS_SUCCEEDED (result) ? G_OK : G_FAILED;
}

static gresult
impl_print_preview_close (EphyEmbed *embed)
{
    nsresult result = NS_OK;
    EphyBrowser *browser;
    
    browser = MOZILLA_EMBED(embed)->priv->browser;
    g_return_val_if_fail (browser != NULL, G_FAILED);

    result = browser->PrintPreviewClose();
    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static gresult
impl_print_preview_num_pages (EphyEmbed *embed,
                  gint *retNum)
{
    nsresult result = NS_OK;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;
    
    result = mpriv->browser->PrintPreviewNumPages(retNum);
    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static gresult
impl_print_preview_navigate (EphyEmbed *embed,
                 EmbedPrintPreviewNavType navType,
                 gint pageNum)
{
    nsresult result = NS_OK;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    result = mpriv->browser->PrintPreviewNavigate(navType, pageNum);
    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static gresult
impl_set_encoding (EphyEmbed *embed,
           const char *encoding)
{
    nsresult result;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    result = mpriv->browser->ForceEncoding (encoding);
    if (NS_FAILED (result)) return G_FAILED;
    
    gtk_moz_embed_reload (GTK_MOZ_EMBED (embed),
                  GTK_MOZ_EMBED_FLAG_RELOADCHARSETCHANGE);
    
    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static gresult
impl_get_encoding_info (EphyEmbed *embed,
            EphyEncodingInfo **info)
{
    nsresult result;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    g_return_val_if_fail (info != NULL, G_FAILED);
    *info = NULL;

    result = mpriv->browser->GetEncodingInfo (info);

    return NS_SUCCEEDED(result) ? G_OK : G_FAILED;
}

static void
mozilla_embed_location_changed_cb (GtkMozEmbed *embed, 
                   MozillaEmbed *membed)
{
    char *location;

    location = gtk_moz_embed_get_location (embed);
    g_signal_emit_by_name (membed, "ge_location", location);
    g_free (location);
}

static void
mozilla_embed_title_changed_cb (GtkMozEmbed *embed, 
                MozillaEmbed *membed)
{
    g_return_if_fail (MOZILLA_IS_EMBED (membed));
    g_return_if_fail (GTK_IS_WIDGET (embed));
    g_signal_emit_by_name (membed, "ge_title");
}

static void
mozilla_embed_net_state_all_cb (GtkMozEmbed *embed, const char *aURI,
                                gint state, guint status, 
                MozillaEmbed *membed)
{
    EmbedState estate = EMBED_STATE_UNKNOWN;
    int i;
    
    struct
    {
        guint state;
        EmbedState embed_state;
    }
    conversion_map [] =
    {
        { GTK_MOZ_EMBED_FLAG_START, EMBED_STATE_START },
        { GTK_MOZ_EMBED_FLAG_STOP, EMBED_STATE_STOP },
        { GTK_MOZ_EMBED_FLAG_REDIRECTING, EMBED_STATE_REDIRECTING },
        { GTK_MOZ_EMBED_FLAG_TRANSFERRING, EMBED_STATE_TRANSFERRING },
        { GTK_MOZ_EMBED_FLAG_NEGOTIATING, EMBED_STATE_NEGOTIATING },
        { GTK_MOZ_EMBED_FLAG_IS_REQUEST, EMBED_STATE_IS_REQUEST },
        { GTK_MOZ_EMBED_FLAG_IS_DOCUMENT, EMBED_STATE_IS_DOCUMENT },
        { GTK_MOZ_EMBED_FLAG_IS_NETWORK, EMBED_STATE_IS_NETWORK },
        { 0, EMBED_STATE_UNKNOWN }
    };

    for (i = 0; conversion_map[i].state != 0; i++)
    {
        if (state & conversion_map[i].state)
        {
            estate = (EmbedState) (estate | conversion_map[i].embed_state); 
        }
    }
    
    g_signal_emit_by_name (membed, "ge_net_state", aURI, estate);
}

static void
mozilla_embed_progress_cb (GtkMozEmbed *embed, const char *aURI,
                           gint curprogress, gint maxprogress, 
               MozillaEmbed *membed)
{
    g_signal_emit_by_name (membed, "ge_progress", aURI, 
                   curprogress, maxprogress);
}

static void
mozilla_embed_link_message_cb (GtkMozEmbed *embed, 
                   MozillaEmbed *membed)
{
    nsXPIDLString message;

    *getter_Copies(message) = gtk_moz_embed_get_link_message_unichar (embed);
    
    g_signal_emit_by_name (membed, "ge_link_message",
                   NS_ConvertUCS2toUTF8(message).get());
}

static void
mozilla_embed_js_status_cb (GtkMozEmbed *embed, 
                MozillaEmbed *membed)
{
    nsXPIDLString status;

    *getter_Copies(status) = gtk_moz_embed_get_js_status_unichar (embed);
    
    g_signal_emit_by_name (membed, "ge_js_status",
                   NS_ConvertUCS2toUTF8(status).get());
}

static void
mozilla_embed_visibility_cb (GtkMozEmbed *embed, gboolean visibility, 
                 MozillaEmbed *membed)
{
    g_signal_emit_by_name (membed, "ge_visibility", visibility); 
}

static gint
mozilla_embed_dom_key_down_cb (GtkMozEmbed *embed, gpointer dom_event,
                       MozillaEmbed *membed)
{
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    if (dom_event == NULL)
    {
        g_warning ("mozilla_embed_dom_key_down_cb: domevent NULL");
        return FALSE;
    }

    nsCOMPtr<nsIDOMKeyEvent> ev = static_cast<nsIDOMKeyEvent*>(dom_event);
    if (!ev)
    {
        return FALSE;
    }

    EphyEmbedEvent *info;
    info = ephy_embed_event_new ();

    gboolean ret = FALSE;

    nsresult rv;
    EventContext ctx;
    ctx.Init (mpriv->browser);
    rv = ctx.GetKeyEventInfo (ev, info);
    if (NS_FAILED (rv)) return G_FAILED;

    if (info->keycode == nsIDOMKeyEvent::DOM_VK_F10 &&
        (info->modifier == GDK_SHIFT_MASK ||
         info->modifier == GDK_CONTROL_MASK))
    {
        /* Translate relative coordinates to absolute values, and try
           to avoid covering links by adding a little offset. */

        int x, y;
        gdk_window_get_origin (GTK_WIDGET(membed)->window, &x, &y);
        info->x += x + 6;   
        info->y += y + 6;

        if (info->modifier == GDK_CONTROL_MASK)
        {
            info->context = EMBED_CONTEXT_DOCUMENT; 
        }

        nsCOMPtr<nsIDOMDocument> doc;
        rv = ctx.GetTargetDocument (getter_AddRefs(doc));
        if (NS_SUCCEEDED(rv))
        {
            rv = mpriv->browser->PushTargetDocument (doc);
            if (NS_SUCCEEDED(rv))
            {
                g_signal_emit_by_name (membed, "ge_context_menu", info, &ret);
                mpriv->browser->PopTargetDocument ();
            }
        }
    }

    g_object_unref (info);
    return ret;
}

static void
mozilla_embed_destroy_brsr_cb (GtkMozEmbed *embed, 
                   MozillaEmbed *membed)
{
    g_signal_emit_by_name (membed, "ge_destroy_brsr"); 
}

static gint
mozilla_embed_dom_mouse_click_cb (GtkMozEmbed *embed, gpointer dom_event, 
                  MozillaEmbed *membed)
{
    EphyEmbedEvent *info;
    EventContext event_context;
    gint return_value = 0;
    nsresult result;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    if (dom_event == NULL)
    {
        g_warning ("mozilla_embed_dom_mouse_click_cb: domevent NULL");
        return FALSE;
    }

    info = ephy_embed_event_new ();
    
    event_context.Init (mpriv->browser);
        result = event_context.GetMouseEventInfo (static_cast<nsIDOMMouseEvent*>(dom_event), info);

    if (NS_SUCCEEDED(result))
    {
        nsCOMPtr<nsIDOMDocument> domDoc;
        result = event_context.GetTargetDocument (getter_AddRefs(domDoc));
        if (NS_SUCCEEDED(result))
        {
            result = mpriv->browser->PushTargetDocument (domDoc);
            if (NS_SUCCEEDED(result))
            {
                g_signal_emit_by_name (membed, "ge_dom_mouse_click", 
                               info, &return_value); 
                mpriv->browser->PopTargetDocument ();
            }
        }

    }

    g_object_unref (info);

    return return_value;
}

static gint
mozilla_embed_dom_mouse_down_cb (GtkMozEmbed *embed, gpointer dom_event, 
                 MozillaEmbed *membed)
{
    EphyEmbedEvent *info;
    EventContext event_context;
    gint return_value = FALSE;
    nsresult result;
    EphyEmbedEventType type;
    MozillaEmbedPrivate *mpriv = MOZILLA_EMBED(embed)->priv;

    if (dom_event == NULL)
    {
        g_warning ("mozilla_embed_dom_mouse_down_cb: domevent NULL");
        return FALSE;
    }

    info = ephy_embed_event_new ();
    
    event_context.Init (mpriv->browser);
        result = event_context.GetMouseEventInfo (static_cast<nsIDOMMouseEvent*>(dom_event), info);
    if (NS_FAILED (result)) return FALSE;

    ephy_embed_event_get_event_type (info, &type);
        
    nsCOMPtr<nsIDOMDocument> domDoc;
    result = event_context.GetTargetDocument (getter_AddRefs(domDoc));
    if (NS_SUCCEEDED(result))
    {
        result = mpriv->browser->PushTargetDocument (domDoc);

        if (NS_SUCCEEDED(result))
        {
            g_signal_emit_by_name (membed, "ge_dom_mouse_down", 
                           info, &return_value); 

            if (return_value == FALSE &&
                type == EPHY_EMBED_EVENT_MOUSE_BUTTON3)
            {
                g_signal_emit_by_name (membed, "ge_context_menu", 
                               info, &return_value);
            }

            mpriv->browser->PopTargetDocument ();
        }
    }

    g_object_unref (info);

    return return_value;
}

static void
mozilla_embed_size_to_cb (GtkMozEmbed *embed, gint width, gint height, 
              MozillaEmbed *membed)
{
    g_signal_emit_by_name (membed, "ge_size_to", width, height);
}

static void
mozilla_embed_new_window_cb (GtkMozEmbed *embed, 
                 GtkMozEmbed **newEmbed,
                             guint chromemask, 
                 MozillaEmbed *membed)
{
    int i;
    EmbedChromeMask mask = EMBED_CHROME_OPENASPOPUP;
    EphyEmbed *new_embed = NULL;

    struct
    {
        guint chromemask;
        EmbedChromeMask embed_mask;
    }
    conversion_map [] =
    {
        { GTK_MOZ_EMBED_FLAG_DEFAULTCHROME, EMBED_CHROME_DEFAULT },
        { GTK_MOZ_EMBED_FLAG_MENUBARON, EMBED_CHROME_MENUBARON },
        { GTK_MOZ_EMBED_FLAG_TOOLBARON, EMBED_CHROME_TOOLBARON },
        { GTK_MOZ_EMBED_FLAG_PERSONALTOOLBARON, EMBED_CHROME_BOOKMARKSBAR_DEFAULT },
        { GTK_MOZ_EMBED_FLAG_STATUSBARON, EMBED_CHROME_STATUSBARON },
        { GTK_MOZ_EMBED_FLAG_WINDOWRAISED, EMBED_CHROME_WINDOWRAISED },
        { GTK_MOZ_EMBED_FLAG_WINDOWLOWERED, EMBED_CHROME_WINDOWLOWERED },
        { GTK_MOZ_EMBED_FLAG_CENTERSCREEN, EMBED_CHROME_CENTERSCREEN },
        { GTK_MOZ_EMBED_FLAG_OPENASDIALOG, EMBED_CHROME_OPENASDIALOG },
        { GTK_MOZ_EMBED_FLAG_OPENASCHROME, EMBED_CHROME_OPENASCHROME },
        { 0, EMBED_CHROME_NONE }
    };

    for (i = 0; conversion_map[i].chromemask != 0; i++)
    {
        if (chromemask & conversion_map[i].chromemask)
        {
            mask = (EmbedChromeMask) (mask | conversion_map[i].embed_mask); 
        }
    }
    
    g_signal_emit_by_name (membed, "ge_new_window", &new_embed, mask);

    g_assert (new_embed != NULL);
    
    *newEmbed = GTK_MOZ_EMBED(new_embed);
}

static void
mozilla_embed_security_change_cb (GtkMozEmbed *embed, 
                  gpointer request,
                                  guint state, 
                  MozillaEmbed *membed)
{
    EmbedSecurityLevel level;

    membed->priv->request = (nsIRequest *) request;
    membed->priv->security_state = state;
    level = mozilla_embed_security_level (membed);

    g_signal_emit_by_name (membed, "ge_security_change", level);
}

static EmbedSecurityLevel
mozilla_embed_security_level (MozillaEmbed *membed)
{
    EmbedSecurityLevel level;

    switch (membed->priv->security_state)
        {
        case nsIWebProgressListener::STATE_IS_INSECURE:
                level = STATE_IS_INSECURE;
                break;
        case nsIWebProgressListener::STATE_IS_BROKEN:
                level = STATE_IS_BROKEN;
                break;
        case nsIWebProgressListener::STATE_IS_SECURE|
             nsIWebProgressListener::STATE_SECURE_HIGH:
                level = STATE_IS_SECURE_HIGH;
                break;
        case nsIWebProgressListener::STATE_IS_SECURE|
             nsIWebProgressListener::STATE_SECURE_MED:
                level = STATE_IS_SECURE_MED;
                break;
        case nsIWebProgressListener::STATE_IS_SECURE|
             nsIWebProgressListener::STATE_SECURE_LOW:
                level = STATE_IS_SECURE_LOW;
                break;
        default:
                level = STATE_IS_UNKNOWN;
                break;
        }
    return level;
}