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/*
 *  Copyright (C) 2001, 2002 Ricardo Fernández Pascual
 *  Copyright (C) 2003 Marco Pesenti Gritti
 *  Copyright (C) 2003 Christian Persch
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *  $Id$
 */


#include <config.h>
#include <libgnome/gnome-macros.h>
#include <bonobo/bonobo-zoomable.h>
#include <bonobo/bonobo-ui-util.h>
#include <string.h>

#include "ephy-embed-factory.h"
#include "ephy-embed-popup-control.h"
#include "ephy-nautilus-view.h"
#include "ephy-embed.h"
#include "find-dialog.h"
#include "print-dialog.h"
#include "ephy-encoding-dialog.h"
#include "ephy-zoom.h"
#include "ephy-debug.h"

static void     gnv_embed_location_cb           (EphyEmbed *embed,
                                 const char *new_uri,
                                 EphyNautilusView *view);
static void     gnv_embed_title_cb          (EphyEmbed *embed, 
                                 EphyNautilusView *view);
static void     gnv_embed_new_window_cb         (EphyEmbed *embed, 
                                 EphyEmbed **new_embed,
                                 EmbedChromeMask chromemask,
                                 EphyNautilusView *view);
static void     gnv_embed_link_message_cb       (EphyEmbed *embed, 
                                 EphyNautilusView *view);
static gint     gnv_embed_dom_mouse_click_cb        (EphyEmbed *embed,
                                 EphyEmbedEvent *event,
                                 EphyNautilusView *view);
static void     gnv_embed_context_menu_cb       (EphyEmbed *embed,
                                 EphyEmbedEvent *event,
                                 EphyNautilusView *view);
static void     gnv_embed_zoom_change_cb        (EphyNautilusView *embed,
                                 float new_zoom, 
                                 EphyNautilusView *view);


static void         gnv_load_location_cb            (EphyNautilusView *view,
                                 const char *location,
                                 gpointer user_data);
static void     gnv_stop_loading_cb         (EphyNautilusView *view,
                                 gpointer user_data);
static void     gnv_bonobo_control_activate_cb      (BonoboControl *control,
                                 gboolean state,
                                 EphyNautilusView *view);

/* zoomable */
static void         gnv_zoomable_set_zoom_level_cb      (BonoboZoomable *zoomable,
                                 float level,
                                 EphyNautilusView *view);
static void     gnv_zoomable_zoom_in_cb         (BonoboZoomable *zoomable,
                                 EphyNautilusView *view);
static void         gnv_zoomable_zoom_out_cb        (BonoboZoomable *zoomable,
                                 EphyNautilusView *view);
static void     gnv_zoomable_zoom_to_fit_cb     (BonoboZoomable *zoomable,
                                 EphyNautilusView *view);
static void     gnv_zoomable_zoom_to_default_cb     (BonoboZoomable *zoomable,
                                 EphyNautilusView *view);
/* commands */
static void         gnv_cmd_file_print          (BonoboUIComponent *uic, 
                                 EphyNautilusView *view, 
                                 const char* verbname);
static void         gnv_cmd_edit_find           (BonoboUIComponent *uic, 
                                 EphyNautilusView *view, 
                                 const char* verbname);
static void         gnv_cmd_select_encoding         (BonoboUIComponent *uic, 
                                 EphyNautilusView *view, 
                                 const char* verbname);

/* popups */
static EphyNautilusView *gnv_view_from_popup            (EphyEmbedPopupControl*popup);

static void         gnv_popup_cmd_new_window        (BonoboUIComponent *uic, 
                                 EphyEmbedPopupControl*popup, 
                                 const char* verbname);
static void         gnv_popup_cmd_image_in_new_window   (BonoboUIComponent *uic, 
                                 EphyEmbedPopupControl*popup, 
                                 const char* verbname);
static void         gnv_popup_cmd_frame_in_new_window   (BonoboUIComponent *uic, 
                                 EphyEmbedPopupControl*popup, 
                                 const char* verbname);

#define EPHY_NAUTILUS_VIEW_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_NAUTILUS_VIEW, EphyNautilusViewPrivate))

struct EphyNautilusViewPrivate {
    EphyEmbed *embed;
    char *title;
    char *location;
    int load_percent;

    EphyEmbedPopupControl *popup;
    BonoboUIComponent *popup_ui;
    BonoboControl *control;
    BonoboUIComponent *ui;
    BonoboZoomable *zoomable;

    EphyDialog *find_dialog;
};

static BonoboUIVerb ephy_popup_verbs [] = {
        BONOBO_UI_VERB ("EPOpenInNewWindow", (BonoboUIVerbFn) gnv_popup_cmd_new_window),
    BONOBO_UI_VERB ("EPOpenImageInNewWindow", (BonoboUIVerbFn) gnv_popup_cmd_image_in_new_window),
    BONOBO_UI_VERB ("DPOpenFrameInNewWindow", (BonoboUIVerbFn) gnv_popup_cmd_frame_in_new_window),

        BONOBO_UI_VERB_END
};

BonoboUIVerb ephy_verbs [] = {
        BONOBO_UI_VERB ("FilePrint", (BonoboUIVerbFn) gnv_cmd_file_print),
        BONOBO_UI_VERB ("EditFind", (BonoboUIVerbFn) gnv_cmd_edit_find),
    BONOBO_UI_VERB ("ViewEncoding", (BonoboUIVerbFn) gnv_cmd_select_encoding),
        BONOBO_UI_VERB_END
};

BONOBO_CLASS_BOILERPLATE (EphyNautilusView, ephy_nautilus_view,
              NautilusView, NAUTILUS_TYPE_VIEW)

static gboolean
disconnected_idle (EphyShell *shell)
{
    g_object_unref (shell);

    return FALSE;
}

static void
control_disconnected_cb (BonoboControl *control)
{
    g_idle_add ((GSourceFunc)disconnected_idle, ephy_shell);
}

static void
ephy_nautilus_view_instance_init (EphyNautilusView *view)
{
    GtkWidget *w;
    EphyNautilusViewPrivate *p = EPHY_NAUTILUS_VIEW_GET_PRIVATE (view);
    float *levels;
    gchar **names;
    guint i;
    BonoboControl *control;

    view->priv = p;

    view->priv->embed = EPHY_EMBED
        (ephy_embed_factory_new_object ("EphyEmbed"));

    g_signal_connect (view->priv->embed, "link_message",
              G_CALLBACK (gnv_embed_link_message_cb), 
              view);
    g_signal_connect (view->priv->embed, "ge_location",
              G_CALLBACK (gnv_embed_location_cb), 
              view);
    g_signal_connect (view->priv->embed, "title",
              G_CALLBACK (gnv_embed_title_cb), 
              view);
    g_signal_connect (view->priv->embed, "ge_new_window",
              G_CALLBACK (gnv_embed_new_window_cb), 
              view);
    g_signal_connect (view->priv->embed, "ge_dom_mouse_click", 
              G_CALLBACK (gnv_embed_dom_mouse_click_cb), 
              view);
    g_signal_connect (view->priv->embed, "ge_context_menu", 
              G_CALLBACK (gnv_embed_context_menu_cb), 
              view);
    g_signal_connect (view->priv->embed, "ge_zoom_change",
              G_CALLBACK (gnv_embed_zoom_change_cb), 
              view);

    w = GTK_WIDGET (view->priv->embed);
    gtk_widget_show (w);

    nautilus_view_construct (NAUTILUS_VIEW (view), w);

    g_signal_connect (G_OBJECT (view), "load_location",
              G_CALLBACK (gnv_load_location_cb), NULL);

    g_signal_connect (G_OBJECT (view), "stop_loading",
              G_CALLBACK (gnv_stop_loading_cb), NULL);

    control = nautilus_view_get_bonobo_control (NAUTILUS_VIEW (view));  
    g_object_ref (ephy_shell);

    g_signal_connect (control, "disconnected",
              G_CALLBACK (control_disconnected_cb), NULL);
        g_signal_connect (control,
                          "activate",
                          G_CALLBACK (gnv_bonobo_control_activate_cb), view);

    view->priv->zoomable = bonobo_zoomable_new ();
    bonobo_object_add_interface (BONOBO_OBJECT (view),
                     BONOBO_OBJECT (view->priv->zoomable));

    /* get zoom levels */
    levels = g_new0 (float, n_zoom_levels);
    names = g_new0 (gchar *, n_zoom_levels);
    for (i = 0; i < n_zoom_levels; i++)
    {
        levels[i] = zoom_levels[i].level;
        names[i] = zoom_levels[i].name;
    }

    bonobo_zoomable_set_parameters_full (view->priv->zoomable,
                         1.0,
                         levels [0],
                         levels [n_zoom_levels-1],
                         FALSE, FALSE, TRUE,
                         levels,
                         (const gchar **) names,
                         n_zoom_levels);

    g_free (levels);
    g_free (names);

    bonobo_object_add_interface (BONOBO_OBJECT (view),
                     BONOBO_OBJECT (view->priv->zoomable));

    g_signal_connect (view->priv->zoomable, "set_zoom_level",
                G_CALLBACK (gnv_zoomable_set_zoom_level_cb), view);
    g_signal_connect (view->priv->zoomable, "zoom_in",
                G_CALLBACK (gnv_zoomable_zoom_in_cb), view);
    g_signal_connect (view->priv->zoomable, "zoom_out",
                G_CALLBACK (gnv_zoomable_zoom_out_cb), view);
    g_signal_connect (view->priv->zoomable, "zoom_to_fit",
                G_CALLBACK (gnv_zoomable_zoom_to_fit_cb), view);
    g_signal_connect (view->priv->zoomable, "zoom_to_default",
                G_CALLBACK (gnv_zoomable_zoom_to_default_cb), view);

    p->control = nautilus_view_get_bonobo_control (NAUTILUS_VIEW (view));
    
    p->popup_ui = bonobo_control_get_popup_ui_component (p->control);
    g_assert (BONOBO_IS_UI_COMPONENT (p->popup_ui));
    bonobo_ui_util_set_ui (p->popup_ui, SHARE_DIR,
                   "nautilus-epiphany-view.xml",
                   "EphyNautilusView", NULL);
    p->popup = ephy_embed_popup_control_new (p->control);
    ephy_embed_popup_control_connect_verbs
        (EPHY_EMBED_POPUP_CONTROL (p->popup), p->popup_ui);
    g_object_set_data (G_OBJECT (p->popup), "NautilisView", view);

    bonobo_ui_component_add_verb_list_with_data (p->popup_ui, ephy_popup_verbs, p->popup);
}

/**
 * Returns a new EphyNautilusView as a BonoboObject 
 **/
BonoboObject *
ephy_nautilus_view_new_component (EphyShell *gs)
{
    EphyNautilusView *view;
    view = EPHY_NAUTILUS_VIEW (g_object_new (EPHY_TYPE_NAUTILUS_VIEW, NULL));
    return BONOBO_OBJECT (view);
}

static void
ephy_nautilus_view_finalize (GObject *object)
{
    EphyNautilusView *view = EPHY_NAUTILUS_VIEW (object);
    EphyNautilusViewPrivate *p = view->priv;

    if (p->find_dialog)
    {
        g_object_unref (p->find_dialog);
    }

    g_object_unref (p->popup);

    g_free (p->title);
    g_free (p->location);

    GNOME_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
}

static void
ephy_nautilus_view_class_init (EphyNautilusViewClass *class)
{
    GObjectClass *object_class = G_OBJECT_CLASS (class);

    object_class->finalize = ephy_nautilus_view_finalize;

    g_type_class_add_private (object_class, sizeof(EphyNautilusViewPrivate));
}

static gint
gnv_embed_dom_mouse_click_cb (EphyEmbed *embed,
                  EphyEmbedEvent *event,
                  EphyNautilusView *view)
{
    EphyEmbedEventType type;
    EmbedEventContext context;

    type = ephy_embed_event_get_event_type (event);
    context = ephy_embed_event_get_context (event);

    if (type == EPHY_EMBED_EVENT_MOUSE_BUTTON2
        && (context & EMBED_CONTEXT_LINK))
    {
        const GValue *value;
        const gchar *url;
        ephy_embed_event_get_property (event, "link", &value);
        url = g_value_get_string (value);

        g_return_val_if_fail (url, FALSE);

        nautilus_view_open_location (NAUTILUS_VIEW (view), url,
                             Nautilus_ViewFrame_OPEN_IN_NAVIGATION,
                             0, NULL);
    }

    return FALSE;
}

static void
gnv_embed_context_menu_cb (EphyEmbed *embed,
               EphyEmbedEvent *event,
               EphyNautilusView *view)
{
    EphyNautilusViewPrivate *p = view->priv;

    ephy_embed_popup_control_set_event (p->popup, event);
    ephy_embed_popup_control_show (p->popup, embed);
}

static void
gnv_embed_link_message_cb (EphyEmbed *embed, EphyNautilusView *view)
{
    char *message;

    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));

    message = ephy_embed_get_link_message (embed);

    nautilus_view_report_status (NAUTILUS_VIEW (view), message);

    g_free (message);
}

static void
gnv_embed_location_cb (EphyEmbed *embed, const char *new_uri, EphyNautilusView *view)
{
    const char *prefixes_to_ignore[] = 
        {
            "about:",
            "javascript:",
            NULL 
        };
    int i = 0;

    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    g_return_if_fail (view->priv->embed == embed);
    g_return_if_fail (new_uri != NULL);

    /* don't inform nautilus about uris that it can't understand */
    while (prefixes_to_ignore[i] != NULL)
    {
        if (strncmp (prefixes_to_ignore[i], new_uri, strlen (prefixes_to_ignore[i])) == 0)
        {
            return;
        }
        ++i;
    }

    nautilus_view_report_location_change (NAUTILUS_VIEW (view), new_uri, NULL, new_uri);

    g_free (view->priv->location);
    view->priv->location = g_strdup (new_uri);
}

static void
gnv_embed_title_cb (EphyEmbed *embed, EphyNautilusView *view)
{
    EphyNautilusViewPrivate *p;

    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    p = view->priv;
    g_return_if_fail (view->priv->embed == embed);

    g_free (p->title);
    p->title = ephy_embed_get_title (embed);

    nautilus_view_set_title (NAUTILUS_VIEW (view), p->title);
}

static void
gnv_load_location_cb (EphyNautilusView *view, const char *location, gpointer user_data)
{
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    g_return_if_fail (location != NULL);

    nautilus_view_report_load_underway (NAUTILUS_VIEW (view));
        ephy_embed_load_url (view->priv->embed, location);

}

static void
gnv_stop_loading_cb (EphyNautilusView *view, gpointer user_data)
{
}

static void
gnv_embed_new_window_cb (EphyEmbed *embed, EphyEmbed **new_embed,
             EmbedChromeMask chromemask, EphyNautilusView *view)
{
    EphyTab *new_tab;
    EphyWindow *window;
    
    window = ephy_window_new ();
    new_tab = ephy_tab_new ();
    ephy_window_add_tab (window, new_tab, EPHY_NOTEBOOK_INSERT_LAST, FALSE);

    *new_embed = ephy_tab_get_embed (new_tab);
}


static void
gnv_bonobo_control_activate_cb (BonoboControl *control, gboolean state, EphyNautilusView *view)
{
    if (state)
    {
        EphyNautilusViewPrivate *p = view->priv;
        
        p->ui = nautilus_view_set_up_ui (NAUTILUS_VIEW (view), SHARE_DIR,
                         "nautilus-epiphany-view.xml", "EphyNautilusView");
        g_return_if_fail (BONOBO_IS_UI_COMPONENT (p->ui));

        bonobo_ui_component_add_verb_list_with_data (p->ui, ephy_verbs, view);
    }
}

static EphyNautilusView *
gnv_view_from_popup (EphyEmbedPopupControl*popup)
{
    return g_object_get_data (G_OBJECT (popup), "NautilisView");
}


static void 
gnv_popup_cmd_new_window (BonoboUIComponent *uic, 
              EphyEmbedPopupControl*popup, 
              const char* verbname)
{
    EphyEmbedEvent *info;
    EphyNautilusView *view;
    const GValue *value;

    view = gnv_view_from_popup (popup);
    
    info = ephy_embed_popup_control_get_event (popup);
    
    ephy_embed_event_get_property (info, "link", &value);

    nautilus_view_open_location (NAUTILUS_VIEW (view),
                     g_value_get_string (value),
                     Nautilus_ViewFrame_OPEN_IN_NAVIGATION,
                     0, NULL);
}

static void 
gnv_popup_cmd_image_in_new_window (BonoboUIComponent *uic, 
                   EphyEmbedPopupControl*popup, 
                   const char* verbname)
{
    EphyEmbedEvent *info;
    EphyNautilusView *view;
    const GValue *value;

    view = gnv_view_from_popup (popup);
    
    info = ephy_embed_popup_control_get_event (popup);
    
    ephy_embed_event_get_property (info, "image", &value);

    nautilus_view_open_location (NAUTILUS_VIEW (view),
                     g_value_get_string (value),
                     Nautilus_ViewFrame_OPEN_IN_NAVIGATION,
                     0, NULL);
}

static void 
gnv_popup_cmd_frame_in_new_window (BonoboUIComponent *uic, 
                   EphyEmbedPopupControl*popup, 
                   const char* verbname)
{
    EphyEmbedEvent *info;
    EphyNautilusView *view;
    gchar *location;

    view = gnv_view_from_popup (popup);
    
    info = ephy_embed_popup_control_get_event (popup);
    
    location = ephy_embed_get_location (view->priv->embed, FALSE);

    nautilus_view_open_location (NAUTILUS_VIEW (view),
                     location,
                     Nautilus_ViewFrame_OPEN_IN_NAVIGATION,
                     0, NULL);
    
    g_free (location);
}

static void
gnv_cmd_select_encoding (BonoboUIComponent *uic, 
             EphyNautilusView *view, 
             const char* verbname)
{
    EphyDialog *dialog;
    
    dialog = EPHY_DIALOG (g_object_new (EPHY_TYPE_ENCODING_DIALOG,
                        "embed", view->priv->embed,
                        NULL));

    ephy_dialog_set_modal (dialog, TRUE);
    ephy_dialog_show (dialog);
}

static void
gnv_cmd_file_print (BonoboUIComponent *uic, 
            EphyNautilusView *view, 
            const char* verbname)
{
    EphyDialog *dialog;
    EphyNautilusViewPrivate *p = view->priv;
    
    dialog = print_dialog_new (p->embed, NULL);

    ephy_dialog_set_modal (dialog, TRUE);
    ephy_dialog_show (dialog);

}

static void
gnv_cmd_edit_find (BonoboUIComponent *uic, 
           EphyNautilusView *view, 
           const char* verbname)
{
    EphyNautilusViewPrivate *p = view->priv;

    if (!p->find_dialog)
    {
        p->find_dialog = find_dialog_new (p->embed);
    }

    ephy_dialog_show (p->find_dialog);
}

/* zoomable */
static void
gnv_zoomable_set_zoom_level_cb (BonoboZoomable *zoomable,
                float level,
                EphyNautilusView *view)
{
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    ephy_embed_zoom_set (view->priv->embed,
                 ephy_zoom_get_nearest_zoom_level (level), TRUE);
}

static void
gnv_zoomable_zoom_in_cb (BonoboZoomable *zoomable,
             EphyNautilusView *view)
{
    float zoom, new_zoom;
    
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));

    zoom = ephy_embed_zoom_get (view->priv->embed);

    new_zoom = ephy_zoom_get_changed_zoom_level (zoom, 1);
    ephy_embed_zoom_set (view->priv->embed, new_zoom, TRUE);
}

static void
gnv_zoomable_zoom_out_cb (BonoboZoomable *zoomable,
              EphyNautilusView *view)
{
    float zoom, new_zoom;
        
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));

    zoom = ephy_embed_zoom_get (view->priv->embed);

    new_zoom = ephy_zoom_get_changed_zoom_level (zoom, -1);
    ephy_embed_zoom_set (view->priv->embed, new_zoom, TRUE);
}

static void
gnv_zoomable_zoom_to_fit_cb (BonoboZoomable *zoomable,
                 EphyNautilusView *view)
{
    gnv_zoomable_zoom_to_default_cb (zoomable, view);
}

static void
gnv_zoomable_zoom_to_default_cb (BonoboZoomable *zoomable,
                 EphyNautilusView *view)
{
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    ephy_embed_zoom_set (view->priv->embed, 1.0, TRUE);
}

static void
gnv_embed_zoom_change_cb (EphyNautilusView *embed,
              float new_zoom, 
              EphyNautilusView *view)
{
    g_return_if_fail (EPHY_IS_NAUTILUS_VIEW (view));
    
    bonobo_zoomable_report_zoom_level_changed (view->priv->zoomable,
                           new_zoom, NULL);
}