path: root/shell/e-shell-window.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shell-window.c
 *
 * Copyright (C) 2003  Ettore Perazzoli
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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.
 *
 * Author: Ettore Perazzoli <ettore@ximian.com>
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-shell-window.h"
#include "e-shell-view.h"

#include "Evolution.h"

#include "e-util/e-util-private.h"

#include "e-component-registry.h"
#include "e-shell-window-commands.h"
#include "e-shell-marshal.h"
#include "e-sidebar.h"
#include "es-menu.h"
#include "es-event.h"

#include <gtk/gtk.h>

#include <bonobo/bonobo-exception.h>
#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-ui-util.h>
#include <bonobo/bonobo-widget.h>

#include <glib/gi18n.h>
#include <libgnome/gnome-gconf.h>

#include <gconf/gconf-client.h>

#include <string.h>

#ifdef NM_SUPPORT_GLIB
void e_shell_nm_glib_initialise (EShellWindow *window);
void e_shell_nm_glib_dispose (EShellWindow *window);
#elif NM_SUPPORT
void e_shell_dbus_initialise (EShellWindow *window);
void e_shell_dbus_dispose (EShellWindow *window);
#endif

/* A view for each component.  These are all created when EShellWindow is
   instantiated, but with the widget pointers to NULL and the page number set
   to -1.  When the views are created the first time, the widget pointers as
   well as the notebook page value get set.  */
struct _ComponentView {
    int button_id;
    char *component_id;
    char *component_alias;

    GNOME_Evolution_ComponentView component_view;
    char *title;

    GtkWidget *sidebar_widget;
    GtkWidget *view_widget;
    GtkWidget *statusbar_widget;

    int notebook_page_num;
};
typedef struct _ComponentView ComponentView;


struct _EShellWindowPrivate {
    union {
        EShell *eshell;
        gpointer pointer;
    } shell;

    EShellView *shell_view; /* CORBA wrapper for this, just a placeholder */

    /* plugin menu manager */
    ESMenu *menu;

    /* All the ComponentViews.  */
    GSList *component_views;

    /* The paned widget for the sidebar and component views */
    GtkWidget *paned;

    /* The sidebar.  */
    GtkWidget *sidebar;

    /* Notebooks used to switch between components.  */
    GtkWidget *sidebar_notebook;
    GtkWidget *view_notebook;
    GtkWidget *statusbar_notebook;

    /* Bonobo foo.  */
    BonoboUIComponent *ui_component;

    /* The current view (can be NULL initially).  */
    ComponentView *current_view;

    /* Tooltips.  */
    GtkTooltips *tooltips;

    /* The status bar widgetry.  */
    GtkWidget *status_bar;
    GtkWidget *offline_toggle;
    GtkWidget *offline_toggle_image;
    GtkWidget *menu_hint_label;

    /* The timeout for saving the window size */
    guint      store_window_size_timer;
    gboolean destroyed;
};


enum {
    COMPONENT_CHANGED,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

G_DEFINE_TYPE (EShellWindow, e_shell_window, BONOBO_TYPE_WINDOW)

/* The icons for the offline/online status.  */
#define OFFLINE_ICON "offline.png"
#define ONLINE_ICON  "online.png"

static gboolean store_window_size (GtkWidget* widget);

/* ComponentView handling.  */

static ComponentView *
component_view_new (const char *id, const char *alias, int button_id)
{
    ComponentView *view = g_new0 (ComponentView, 1);

    view->component_id = g_strdup (id);
    view->component_alias = g_strdup (alias);
    view->button_id = button_id;
    view->notebook_page_num = -1;

    return view;
}

static void
component_view_free (ComponentView *view)
{
    if (view->component_view) {
        CORBA_Environment ev = { NULL };

        CORBA_Object_release(view->component_view, &ev);
        CORBA_exception_free(&ev);
    }

    g_free (view->component_id);
    g_free (view->component_alias);
    g_free (view->title);
    g_free (view);
}

static void
component_view_deactivate (ComponentView *view)
{
    BonoboControlFrame *view_control_frame;
    BonoboControlFrame *sidebar_control_frame;

    g_return_if_fail (view->sidebar_widget != NULL);
    g_return_if_fail (view->view_widget != NULL);

    view_control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (view->view_widget));
    bonobo_control_frame_control_deactivate (view_control_frame);

    sidebar_control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (view->sidebar_widget));
    bonobo_control_frame_control_deactivate (sidebar_control_frame);
}

static void
component_view_activate (ComponentView *view)
{
    BonoboControlFrame *view_control_frame;
    BonoboControlFrame *sidebar_control_frame;

    g_return_if_fail (view->sidebar_widget != NULL);
    g_return_if_fail (view->view_widget != NULL);

    view_control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (view->view_widget));
    bonobo_control_frame_control_activate (view_control_frame);

    sidebar_control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (view->sidebar_widget));
    bonobo_control_frame_control_activate (sidebar_control_frame);
}

static void
init_view (EShellWindow *window,
       ComponentView *view)
{
    EShellWindowPrivate *priv = window->priv;
    EComponentRegistry *registry = e_shell_peek_component_registry (window->priv->shell.eshell);
    GNOME_Evolution_Component component_iface;
    GNOME_Evolution_ComponentView component_view;
    Bonobo_UIContainer container;
    Bonobo_Control sidebar_control;
    Bonobo_Control view_control;
    Bonobo_Control statusbar_control;
    CORBA_Environment ev;
    int sidebar_notebook_page_num;
    int view_notebook_page_num;

    g_return_if_fail (view->view_widget == NULL);
    g_return_if_fail (view->sidebar_widget == NULL);
    g_return_if_fail (view->notebook_page_num == -1);

    CORBA_exception_init (&ev);

    /* 1. Activate component.  (FIXME: Shouldn't do this here.)  */

    component_iface = e_component_registry_activate (registry, view->component_id, &ev);
    if (BONOBO_EX (&ev) || component_iface == CORBA_OBJECT_NIL) {
        char *ex_text = bonobo_exception_get_text (&ev);
        g_warning ("Cannot activate component  %s: %s", view->component_id, ex_text);
        g_free (ex_text);
        CORBA_exception_free (&ev);
        return;
    }

    /* 2. Set up view.  */

    /* The rest of the code assumes that the component is valid and can create
       controls; if this fails something is really wrong in the component
       (e.g. methods not implemented)...  So handle it as if there was no
       component at all.  */

    component_view = GNOME_Evolution_Component_createView(component_iface, BONOBO_OBJREF(priv->shell_view), &ev);
    if (component_view == NULL || BONOBO_EX (&ev)) {
        g_warning ("Cannot create view for %s", view->component_id);
        bonobo_object_release_unref (component_iface, NULL);
        CORBA_exception_free (&ev);
        return;
    }

    GNOME_Evolution_ComponentView_getControls(component_view, &sidebar_control, &view_control, &statusbar_control, &ev);
    if (BONOBO_EX (&ev)) {
        g_warning ("Cannot create view for %s", view->component_id);
        bonobo_object_release_unref (component_iface, NULL);
        CORBA_exception_free (&ev);
        return;
    }

    view->component_view = component_view;

    CORBA_exception_free (&ev);

    container = bonobo_ui_component_get_container (priv->ui_component);

    view->sidebar_widget = bonobo_widget_new_control_from_objref (sidebar_control, container);
    gtk_widget_show (view->sidebar_widget);
    bonobo_object_release_unref (sidebar_control, NULL);

    view->view_widget = bonobo_widget_new_control_from_objref (view_control, container);
    gtk_widget_show (view->view_widget);
    bonobo_object_release_unref (view_control, NULL);

    view->statusbar_widget = bonobo_widget_new_control_from_objref (statusbar_control, container);
    gtk_widget_show (view->statusbar_widget);
    bonobo_object_release_unref (statusbar_control, NULL);

    gtk_notebook_append_page (GTK_NOTEBOOK (priv->sidebar_notebook), view->sidebar_widget, NULL);
    gtk_notebook_append_page (GTK_NOTEBOOK (priv->view_notebook), view->view_widget, NULL);
    gtk_notebook_append_page (GTK_NOTEBOOK (priv->statusbar_notebook), view->statusbar_widget, NULL);

    sidebar_notebook_page_num = gtk_notebook_page_num (GTK_NOTEBOOK (priv->sidebar_notebook), view->sidebar_widget);
    view_notebook_page_num = gtk_notebook_page_num (GTK_NOTEBOOK (priv->view_notebook), view->view_widget);

    /* Since we always add a view page and a sidebar page at the same time...  */
    g_return_if_fail (sidebar_notebook_page_num == view_notebook_page_num);

    view->notebook_page_num = view_notebook_page_num;

    /* 3. Switch to the new page.  */

    gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->view_notebook), view_notebook_page_num);
    gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->sidebar_notebook), view_notebook_page_num);
    gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->statusbar_notebook), view_notebook_page_num);

    if (priv->current_view != NULL)
        component_view_deactivate (priv->current_view);
    priv->current_view = view;
    component_view_activate (view);

    bonobo_object_release_unref (component_iface, NULL);
}

static void
switch_view (EShellWindow *window, ComponentView *component_view)
{
    EShellWindowPrivate *priv = window->priv;
    GConfClient *gconf_client = gconf_client_get_default ();
    EComponentRegistry *registry = e_shell_peek_component_registry (window->priv->shell.eshell);
    EComponentInfo *info = e_component_registry_peek_info (registry,
                                   ECR_FIELD_ID,
                                   component_view->component_id);
    char *title;

    if (component_view->sidebar_widget == NULL) {
        init_view (window, component_view);
    } else {
        if (priv->current_view != NULL)
            component_view_deactivate (priv->current_view);
        priv->current_view = component_view;
        component_view_activate (component_view);

        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->view_notebook), component_view->notebook_page_num);
        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->sidebar_notebook), component_view->notebook_page_num);
        gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->statusbar_notebook), component_view->notebook_page_num);
    }

    if (component_view->title == NULL) {
        /* To translators: This is the window title and %s is the 
        component name. Most translators will want to keep it as is. */
        title = g_strdup_printf (_("%s - Evolution"), info->button_label);
        gtk_window_set_title (GTK_WINDOW (window), title);
        g_free (title);
    } else
        gtk_window_set_title (GTK_WINDOW (window), component_view->title);

    if (info->button_icon)
        gtk_window_set_icon (GTK_WINDOW (window), info->button_icon);

    gconf_client_set_string (gconf_client, "/apps/evolution/shell/view_defaults/component_id",
                 (component_view->component_alias != NULL
                  ? component_view->component_alias
                  : component_view->component_id),
                 NULL);

    g_object_unref (gconf_client);

    /** @Event: Shell component activated or switched to.
     * @Id: component.activated
     * @Target: ESEventTargetComponent
     * 
     * This event is emitted whenever the shell successfully activates component
     * view.
     */
    e_event_emit ((EEvent *) es_event_peek (), "component.activated", (EEventTarget *) es_event_target_new_component (es_event_peek (), component_view->component_id));

    g_signal_emit (window, signals[COMPONENT_CHANGED], 0);
}


/* Functions to update the sensitivity of buttons and menu items depending on the status.  */

static void
update_offline_toggle_status (EShellWindow *window)
{
    EShellWindowPrivate *priv;
    const char *icon;
    char *icon_file;
    const char *tooltip;
    gboolean sensitive;
    guint32 flags = 0;
    ESMenuTargetShell *t;

    priv = window->priv;

    switch (e_shell_get_line_status (priv->shell.eshell)) {
    case E_SHELL_LINE_STATUS_ONLINE:
        icon        = ONLINE_ICON;
        sensitive   = TRUE;
        tooltip     = _("Evolution is currently online. "
                "Click on this button to work offline.");
        flags = ES_MENU_SHELL_ONLINE;
        break;
    case E_SHELL_LINE_STATUS_GOING_OFFLINE:
        icon        = ONLINE_ICON;
        sensitive   = FALSE;
        tooltip     = _("Evolution is in the process of going offline.");
        flags = ES_MENU_SHELL_OFFLINE;
        break;
    case E_SHELL_LINE_STATUS_OFFLINE:
    case E_SHELL_LINE_STATUS_FORCED_OFFLINE:
        icon        = OFFLINE_ICON;
        sensitive   = TRUE;
        tooltip     = _("Evolution is currently offline. "
                "Click on this button to work online.");
        flags = ES_MENU_SHELL_OFFLINE;
        break;
    default:
        g_return_if_reached ();
    }

    icon_file = g_build_filename (EVOLUTION_IMAGESDIR, icon, NULL);
    gtk_image_set_from_file (GTK_IMAGE (priv->offline_toggle_image), icon_file);
    g_free (icon_file);
    gtk_widget_set_sensitive (priv->offline_toggle, sensitive);
    gtk_tooltips_set_tip (priv->tooltips, priv->offline_toggle, tooltip, NULL);

    /* TODO: If we get more shell flags, this should be centralised */
    t = es_menu_target_new_shell(priv->menu, flags);
    t->target.widget = (GtkWidget *)window;
    e_menu_update_target((EMenu *)priv->menu, t);
}

static void
update_send_receive_sensitivity (EShellWindow *window)
{
    if (e_shell_get_line_status (window->priv->shell.eshell) == E_SHELL_LINE_STATUS_OFFLINE || 
        e_shell_get_line_status (window->priv->shell.eshell) == E_SHELL_LINE_STATUS_FORCED_OFFLINE)
        bonobo_ui_component_set_prop (window->priv->ui_component,
                          "/commands/SendReceive",
                          "sensitive", "0", NULL);
    else
        bonobo_ui_component_set_prop (window->priv->ui_component,
                          "/commands/SendReceive",
                          "sensitive", "1", NULL);
}


/* Callbacks.  */

static ComponentView *
get_component_view (EShellWindow *window, int id)
{
    GSList *p;

    for (p = window->priv->component_views; p; p = p->next) {
        if (((ComponentView *) p->data)->button_id == id)
            return p->data;
    }

    g_warning ("Unknown component button id %d", id);
    return NULL;
}

static void
sidebar_button_selected_callback (ESidebar *sidebar,
                  int button_id,
                  EShellWindow *window)
{
    ComponentView *component_view;

    if ((component_view = get_component_view (window, button_id)))
        switch_view (window, component_view);
}

static gboolean
sidebar_button_pressed_callback (ESidebar       *sidebar,
                 GdkEventButton *event,
                 int             button_id,
                 EShellWindow   *window)
{
    if (event->type == GDK_BUTTON_PRESS &&
        event->button == 2) {
        /* open it in a new window */
        ComponentView *component_view;

        if ((component_view = get_component_view (window, button_id))) {
            e_shell_create_window (window->priv->shell.eshell,
                           component_view->component_id,
                           window);
        }
        return TRUE;
    }
    return FALSE;
}

static void
offline_toggle_clicked_callback (GtkButton *button,
                 EShellWindow *window)
{
    EShellWindowPrivate *priv = window->priv;

    switch (e_shell_get_line_status (priv->shell.eshell)) {
    case E_SHELL_LINE_STATUS_ONLINE:
        e_shell_go_offline (priv->shell.eshell, window, GNOME_Evolution_USER_OFFLINE);
        break;
    case E_SHELL_LINE_STATUS_OFFLINE:
    case E_SHELL_LINE_STATUS_FORCED_OFFLINE:
        e_shell_go_online (priv->shell.eshell, window, GNOME_Evolution_USER_ONLINE);
        break;
    default:
        g_return_if_reached();
    }
}

static void
shell_line_status_changed_callback (EShell *shell,
                    EShellLineStatus new_status,
                    EShellWindow *window)
{
    update_offline_toggle_status (window);
    update_send_receive_sensitivity (window);
}

static void
ui_engine_add_hint_callback (BonoboUIEngine *engine,
                 const char *hint,
                 EShellWindow *window)
{
    gtk_label_set_text (GTK_LABEL (window->priv->menu_hint_label), hint);
    gtk_widget_show (window->priv->menu_hint_label);
    gtk_widget_hide (window->priv->statusbar_notebook);
}

static void
ui_engine_remove_hint_callback (BonoboUIEngine *engine,
                EShellWindow *window)
{
    gtk_widget_hide (window->priv->menu_hint_label);
    gtk_widget_show (window->priv->statusbar_notebook);
}


/* Widgetry.  */

static void
setup_offline_toggle (EShellWindow *window)
{
    EShellWindowPrivate *priv;
    GtkWidget *toggle;
    GtkWidget *image;
    GtkWidget *label;
    GtkWidget *hbox;

    priv = window->priv;

    toggle = gtk_button_new ();
    GTK_WIDGET_UNSET_FLAGS (toggle, GTK_CAN_FOCUS);
    gtk_button_set_relief (GTK_BUTTON (toggle), GTK_RELIEF_NONE);

    g_signal_connect (toggle, "clicked",
              G_CALLBACK (offline_toggle_clicked_callback), window);
    hbox = gtk_hbox_new (FALSE, 0);
    gtk_container_add (GTK_CONTAINER (toggle), hbox);

    image = gtk_image_new ();
    gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);

    label = gtk_label_new ("");
    gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);

    gtk_widget_show_all (toggle);

    priv->offline_toggle       = toggle;
    priv->offline_toggle_image = image;

    update_offline_toggle_status (window);

    g_return_if_fail (priv->status_bar != NULL);

    gtk_box_pack_start (GTK_BOX (priv->status_bar), priv->offline_toggle, FALSE, TRUE, 0);
}

static void
setup_menu_hint_label (EShellWindow *window)
{
    EShellWindowPrivate *priv;

    priv = window->priv;

    priv->menu_hint_label = gtk_label_new ("");
    gtk_misc_set_alignment (GTK_MISC (priv->menu_hint_label), 0.0, 0.5);

    gtk_box_pack_start (GTK_BOX (priv->status_bar), priv->menu_hint_label, TRUE, TRUE, 0);
}

static void
setup_statusbar_notebook (EShellWindow *window)
{
    EShellWindowPrivate *priv;

    priv = window->priv;

    priv->statusbar_notebook = gtk_notebook_new ();
    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->statusbar_notebook), FALSE);
    gtk_notebook_set_show_border (GTK_NOTEBOOK (priv->statusbar_notebook), FALSE);

    gtk_box_pack_start (GTK_BOX (priv->status_bar), priv->statusbar_notebook, TRUE, TRUE, 0);
    gtk_widget_show (priv->statusbar_notebook);
}

static void
setup_nm_support (EShellWindow *window)
{
    #ifdef NM_SUPPORT_GLIB
           e_shell_nm_glib_initialise (window);
    #elif NM_SUPPORT
           e_shell_dbus_initialise (window);
    #endif
}

static void
setup_status_bar (EShellWindow *window)
{
    EShellWindowPrivate *priv;
    BonoboUIEngine *ui_engine;
    GConfClient *gconf_client;
    gint height;

    priv = window->priv;

    priv->status_bar = gtk_hbox_new (FALSE, 2);

    /* Make the status bar as large as the task bar. */
    gtk_icon_size_lookup (GTK_ICON_SIZE_MENU, NULL, &height);
    gtk_widget_set_size_request (GTK_WIDGET (priv->status_bar), -1, height * 2);

    gconf_client = gconf_client_get_default ();
    if(gconf_client_get_bool (gconf_client,"/apps/evolution/shell/view_defaults/statusbar_visible",NULL))
        gtk_widget_show (priv->status_bar);
    g_object_unref (gconf_client);

    /* setup dbus interface here*/
    setup_nm_support (window);

    setup_offline_toggle (window);
    setup_menu_hint_label (window);
    setup_statusbar_notebook (window);

    ui_engine = bonobo_window_get_ui_engine (BONOBO_WINDOW (window));

    g_signal_connect (ui_engine, "add_hint", G_CALLBACK (ui_engine_add_hint_callback), window);
    g_signal_connect (ui_engine, "remove_hint", G_CALLBACK (ui_engine_remove_hint_callback), window);
}

static void
menu_component_selected (BonoboUIComponent *uic,
             EShellWindow *window,
             const char *path)
{
    char *component_id;

    component_id = strchr(path, '-');
    if (component_id)
        e_shell_window_switch_to_component (window, component_id+1);
}

static GConfEnumStringPair button_styles[] = {
         { E_SIDEBAR_MODE_TEXT, "text" },
         { E_SIDEBAR_MODE_ICON, "icons" },
         { E_SIDEBAR_MODE_BOTH, "both" },
         { E_SIDEBAR_MODE_TOOLBAR, "toolbar" },
    { -1, NULL }
};

static void
setup_widgets (EShellWindow *window)
{
    EShellWindowPrivate *priv = window->priv;
    EComponentRegistry *registry = e_shell_peek_component_registry (priv->shell.eshell);
    GConfClient *gconf_client = gconf_client_get_default ();
    GtkWidget *contents_vbox;
    GSList *p;
    GString *xml;
    int button_id;
    gboolean visible;
    char *style;
    int mode;

    priv->paned = gtk_hpaned_new ();
    gtk_widget_show (priv->paned);

    priv->sidebar = e_sidebar_new ();
    g_signal_connect (priv->sidebar, "button_selected",
              G_CALLBACK (sidebar_button_selected_callback), window);
    g_signal_connect (priv->sidebar, "button_pressed",
              G_CALLBACK (sidebar_button_pressed_callback), window);
    gtk_paned_pack1 (GTK_PANED (priv->paned), priv->sidebar, FALSE, FALSE);
    gtk_widget_show (priv->sidebar);

    priv->sidebar_notebook = gtk_notebook_new ();
    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->sidebar_notebook), FALSE);
    gtk_notebook_set_show_border (GTK_NOTEBOOK (priv->sidebar_notebook), FALSE);
    e_sidebar_set_selection_widget (E_SIDEBAR (priv->sidebar), priv->sidebar_notebook);
    gtk_widget_show (priv->sidebar_notebook);

    priv->view_notebook = gtk_notebook_new ();
    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->view_notebook), FALSE);
    gtk_notebook_set_show_border (GTK_NOTEBOOK (priv->view_notebook), FALSE);
    gtk_paned_pack2 (GTK_PANED (priv->paned), priv->view_notebook, TRUE, FALSE);
    gtk_widget_show (priv->view_notebook);

    gtk_paned_set_position (GTK_PANED (priv->paned),
                gconf_client_get_int (gconf_client, "/apps/evolution/shell/view_defaults/folder_bar/width", NULL));

    /* The buttons */
    visible = gconf_client_get_bool (gconf_client,
                         "/apps/evolution/shell/view_defaults/buttons_visible",
                         NULL);
    bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                      "/commands/ViewButtonsHide",
                      "state",
                      visible ? "0" : "1",
                      NULL);

    e_sidebar_set_show_buttons (E_SIDEBAR (priv->sidebar), visible);

    style = gconf_client_get_string (gconf_client,
                     "/apps/evolution/shell/view_defaults/buttons_style",
                     NULL);

    if (gconf_string_to_enum (button_styles, style, &mode)) {
        switch (mode) {
        case E_SIDEBAR_MODE_TEXT:
            bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                              "/commands/ViewButtonsText",
                              "state", "1", NULL);
            break;
        case E_SIDEBAR_MODE_ICON:
            bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                              "/commands/ViewButtonsIcon",
                              "state", "1", NULL);
            break;
        case E_SIDEBAR_MODE_BOTH:
            bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                              "/commands/ViewButtonsIconText",
                              "state", "1", NULL);
            break;

        case E_SIDEBAR_MODE_TOOLBAR:
            bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                              "/commands/ViewButtonsToolbar",
                              "state", "1", NULL);
            break;
        }

        e_sidebar_set_mode (E_SIDEBAR (priv->sidebar), mode);
    }
    g_free (style);

    /* Status Bar*/
    visible = gconf_client_get_bool (gconf_client,
                         "/apps/evolution/shell/view_defaults/statusbar_visible",
                     NULL);
    bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                      "/commands/ViewStatusBar",
                      "state",
                      visible ? "1" : "0",
                      NULL);

    /* Side Bar*/
    visible = gconf_client_get_bool (gconf_client,
                         "/apps/evolution/shell/view_defaults/sidebar_visible",
                     NULL);
    bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                      "/commands/ViewSideBar",
                      "state",
                      visible ? "1" : "0",
                      NULL);

    /* The tool bar */
    visible = gconf_client_get_bool (gconf_client,
                     "/apps/evolution/shell/view_defaults/toolbar_visible",
                     NULL);
    bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                      "/commands/ViewToolbar",
                      "state",
                      visible ? "1" : "0",
                      NULL);
    bonobo_ui_component_set_prop (e_shell_window_peek_bonobo_ui_component (window),
                      "/Toolbar",
                      "hidden",
                      visible ? "0" : "1",
                      NULL);

    button_id = 0;
    xml = g_string_new("");
    for (p = e_component_registry_peek_list (registry); p != NULL; p = p->next) {
        char *tmp, *tmp2;
        EComponentInfo *info = p->data;
        ComponentView *view = component_view_new (info->id, info->alias, button_id);

        window->priv->component_views = g_slist_prepend (window->priv->component_views, view);

        if (!info->button_label || !info->menu_label)
            continue;
        e_sidebar_add_button (E_SIDEBAR (priv->sidebar), info->button_label, info->button_tooltips, info->button_icon, button_id);

        g_string_printf(xml, "SwitchComponent-%s", info->alias);
        bonobo_ui_component_add_verb (e_shell_window_peek_bonobo_ui_component (window),
                          xml->str,
                          (BonoboUIVerbFn)menu_component_selected,
                          window);

        g_string_printf(xml, "<submenu name=\"View\">"
                "<submenu name=\"Window\">"
                "<placeholder name=\"WindowComponent\">"
                "<menuitem name=\"SwitchComponent-%s\" "
                "verb=\"\" label=\"%s\" accel=\"%s\" tip=\"",
                info->alias,
                info->menu_label,
                info->menu_accelerator);
        tmp = g_strdup_printf (_("Switch to %s"), info->button_label);
        tmp2 = g_markup_escape_text (tmp, -1);
        g_string_append (xml, tmp2);
        g_free (tmp2);
        g_free (tmp);

        tmp = bonobo_ui_util_pixbuf_to_xml (info->menu_icon),
        g_string_append_printf(xml, "\" pixtype=\"pixbuf\" pixname=\"%s\"/>"
                       "</placeholder></submenu></submenu>\n",
                       tmp);
        g_free(tmp);
        bonobo_ui_component_set_translate (e_shell_window_peek_bonobo_ui_component (window),
                           "/menu",
                           xml->str,
                           NULL);
        g_string_printf(xml, "<cmd name=\"SwitchComponent-%s\"/>\n", info->alias);
        bonobo_ui_component_set_translate (e_shell_window_peek_bonobo_ui_component (window),
                           "/commands",
                           xml->str,
                           NULL);
        button_id ++;
    }
    g_string_free(xml, TRUE);

    setup_status_bar (window);

    contents_vbox = gtk_vbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX (contents_vbox), priv->paned, TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (contents_vbox), priv->status_bar, FALSE, TRUE, 0);
    gtk_widget_show (contents_vbox);

    /* We only display this when a menu item is actually selected.  */
    gtk_widget_hide (priv->menu_hint_label);

    bonobo_window_set_contents (BONOBO_WINDOW (window), contents_vbox);
    g_object_unref (gconf_client);
}


/* GObject methods.  */

static void
impl_dispose (GObject *object)
{
    EShellWindow *self = E_SHELL_WINDOW (object);
    EShellWindowPrivate *priv = self->priv;

    priv->destroyed = TRUE;

    if (priv->shell.eshell != NULL) {
        g_object_remove_weak_pointer (G_OBJECT (priv->shell.eshell), &priv->shell.pointer);
        priv->shell.eshell = NULL;
    }

    if (priv->ui_component != NULL) {
        bonobo_object_unref (BONOBO_OBJECT (priv->ui_component));
        priv->ui_component = NULL;
    }

    if (priv->tooltips != NULL) {
        gtk_object_destroy (GTK_OBJECT (priv->tooltips));
        priv->tooltips = NULL;
    }

    if (priv->store_window_size_timer) {
        g_source_remove (priv->store_window_size_timer);
        self->priv->store_window_size_timer = 0;

        /* There was a timer. Let us store the settings.*/
        store_window_size (GTK_WIDGET (self));
    }

    #ifdef NM_SUPPORT_GLIB
        e_shell_nm_glib_dispose (E_SHELL_WINDOW (object));
    #elif NM_SUPPORT
        e_shell_dbus_dispose (E_SHELL_WINDOW (object));
    #endif

    (* G_OBJECT_CLASS (e_shell_window_parent_class)->dispose) (object);
}

static void
impl_finalize (GObject *object)
{
    EShellWindowPrivate *priv = E_SHELL_WINDOW (object)->priv;

    g_slist_foreach (priv->component_views, (GFunc) component_view_free, NULL);
    g_slist_free (priv->component_views);

    g_object_unref(priv->menu);

    g_free (priv);

    (* G_OBJECT_CLASS (e_shell_window_parent_class)->finalize) (object);
}

/* GtkWidget methods */
static void
e_shell_window_remove_resize_timer (EShellWindow* self)
{
    if (self->priv->store_window_size_timer) {
        g_source_remove (self->priv->store_window_size_timer);
        self->priv->store_window_size_timer = 0;
    }
}

static gboolean
impl_window_state (GtkWidget *widget, GdkEventWindowState* ev)
{
    gboolean retval = FALSE;

    /* store only if the window state really changed */
    if ((ev->changed_mask & GDK_WINDOW_STATE_MAXIMIZED) != 0) {
        GConfClient* client = gconf_client_get_default ();
        gconf_client_set_bool (client, "/apps/evolution/shell/view_defaults/maximized",
                       (ev->new_window_state & GDK_WINDOW_STATE_MAXIMIZED) != 0, NULL);
        g_object_unref(client);
    }

    if ((ev->new_window_state & GDK_WINDOW_STATE_MAXIMIZED) != 0) {
        e_shell_window_remove_resize_timer (E_SHELL_WINDOW (widget));
    }

    if (GTK_WIDGET_CLASS (e_shell_window_parent_class)->window_state_event) {
        retval |= GTK_WIDGET_CLASS (e_shell_window_parent_class)->window_state_event (widget, ev);
    }

    return retval;
}

static gboolean
store_window_size (GtkWidget* widget)
{
    GConfClient* client = gconf_client_get_default ();
    gconf_client_set_int (client, "/apps/evolution/shell/view_defaults/width",
                  widget->allocation.width, NULL);
    gconf_client_set_int (client, "/apps/evolution/shell/view_defaults/height",
                  widget->allocation.height, NULL);
    g_object_unref(client);

    E_SHELL_WINDOW (widget)->priv->store_window_size_timer = 0;
    return FALSE; // remove this timeout
}

static void
impl_size_alloc (GtkWidget* widget, GtkAllocation* alloc)
{
    EShellWindow* self = E_SHELL_WINDOW (widget);
    e_shell_window_remove_resize_timer(self);

    if (GTK_WIDGET_REALIZED(widget) && !(gdk_window_get_state(widget->window) & GDK_WINDOW_STATE_MAXIMIZED)) {
        /* update the size storage timer */
        self->priv->store_window_size_timer = g_timeout_add (1000, (GSourceFunc)store_window_size, self);
    }

    if (GTK_WIDGET_CLASS (e_shell_window_parent_class)->size_allocate) {
        GTK_WIDGET_CLASS (e_shell_window_parent_class)->size_allocate (widget, alloc);
    }
}

/* Initialization.  */

static void
e_shell_window_class_init (EShellWindowClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);

    object_class->dispose  = impl_dispose;
    object_class->finalize = impl_finalize;

    widget_class->window_state_event = impl_window_state;
    widget_class->size_allocate      = impl_size_alloc;

    signals[COMPONENT_CHANGED] = g_signal_new ("component_changed",
                           G_OBJECT_CLASS_TYPE (object_class),
                           G_SIGNAL_RUN_FIRST,
                           G_STRUCT_OFFSET (EShellWindowClass, component_changed),
                           NULL, NULL,
                           g_cclosure_marshal_VOID__VOID,
                           G_TYPE_NONE, 0);
}

static void
e_shell_window_init (EShellWindow *shell_window)
{
    EShellWindowPrivate *priv = g_new0 (EShellWindowPrivate, 1);

    priv->tooltips = gtk_tooltips_new ();
    priv->shell_view = e_shell_view_new(shell_window);
    priv->destroyed = FALSE;

    shell_window->priv = priv;

    /** @HookPoint: Shell Main Menu
     * @Id: org.gnome.evolution.shell
     * @Type: ESMenu
     * @Target: ESMenuTargetShell
     *
     * This hook point is used to add bonobo menu's to the main
     * evolution shell window, used for global commands not
     * requiring a specific component.
     */
    priv->menu = es_menu_new("org.gnome.evolution.shell");

}


/* Instantiation.  */

GtkWidget *
e_shell_window_new (EShell *shell,
            const char *component_id)
{
    EShellWindow *window = g_object_new (e_shell_window_get_type (), NULL);
    EShellWindowPrivate *priv = window->priv;
    GConfClient *gconf_client = gconf_client_get_default ();
    BonoboUIContainer *ui_container;
    char *default_component_id = NULL;
    char *xmlfile;
    gint width, height;

    if (bonobo_window_construct (BONOBO_WINDOW (window),
                     bonobo_ui_container_new (),
                     "evolution", "Evolution") == NULL) {
        g_object_unref (window);
        g_object_unref (gconf_client);
        return NULL;
    }

    window->priv->shell.eshell = shell;
    g_object_add_weak_pointer (G_OBJECT (shell), &window->priv->shell.pointer);

    /* FIXME TODO: Add system_exception signal handling and all the other
       stuff from e_shell_view_construct().  */

    ui_container = bonobo_window_get_ui_container (BONOBO_WINDOW (window));

    priv->ui_component = bonobo_ui_component_new ("evolution");
    bonobo_ui_component_set_container (priv->ui_component,
                       bonobo_object_corba_objref (BONOBO_OBJECT (ui_container)),
                       NULL);

    xmlfile = g_build_filename (EVOLUTION_UIDIR, "evolution.xml", NULL);
    bonobo_ui_util_set_ui (priv->ui_component,
                   PREFIX,
                   xmlfile,
                   "evolution", NULL);
    g_free (xmlfile);

    e_shell_window_commands_setup (window);
    e_menu_activate((EMenu *)priv->menu, priv->ui_component, TRUE);

    setup_widgets (window);

    if(gconf_client_get_bool (gconf_client,"/apps/evolution/shell/view_defaults/sidebar_visible",NULL))
        gtk_widget_show (priv->sidebar);
    else
        gtk_widget_hide (priv->sidebar);

    update_send_receive_sensitivity (window);
    g_signal_connect_object (shell, "line_status_changed", G_CALLBACK (shell_line_status_changed_callback), window, 0);

    gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);

    if (component_id == NULL) {
        component_id = default_component_id =
            gconf_client_get_string (gconf_client,
                         "/apps/evolution/shell/view_defaults/component_id",
                         NULL);
        if (component_id == NULL)
            component_id = "mail";
    }

    e_shell_window_switch_to_component (window, component_id);
    g_free(default_component_id);
    g_object_unref (gconf_client);

    width = gconf_client_get_int (gconf_client, "/apps/evolution/shell/view_defaults/width", NULL);
    height = gconf_client_get_int (gconf_client, "/apps/evolution/shell/view_defaults/height", NULL);
    gtk_window_set_default_size (GTK_WINDOW (window), (width >= 0) ? width : 0,
            (height >= 0) ? height : 0);
    if (gconf_client_get_bool (gconf_client, "/apps/evolution/shell/view_defaults/maximized", NULL)) {
        gtk_window_maximize (GTK_WINDOW (window));
    }

    g_object_unref (gconf_client);
    return GTK_WIDGET (window);
}


void
e_shell_window_switch_to_component (EShellWindow *window, const char *component_id)
{
    EShellWindowPrivate *priv = window->priv;
    ComponentView *view = NULL;
    GSList *p;

    g_return_if_fail (E_IS_SHELL_WINDOW (window));
    g_return_if_fail (component_id != NULL);

    for (p = priv->component_views; p != NULL; p = p->next) {
        ComponentView *this_view = p->data;

        if (strcmp (this_view->component_id, component_id) == 0
            || (this_view->component_alias != NULL
            && strcmp (this_view->component_alias, component_id) == 0))
        {
            view = p->data;
            break;
        }
    }

    if (view == NULL) {
        g_warning ("Unknown component %s", component_id);
        return;
    }

    e_sidebar_select_button (E_SIDEBAR (priv->sidebar), view->button_id);
}


const char *
e_shell_window_peek_current_component_id (EShellWindow *window)
{
    g_return_val_if_fail (E_IS_SHELL_WINDOW (window), NULL);

    if (window->priv->current_view == NULL)
        return NULL;

    return window->priv->current_view->component_id;
}


EShell *
e_shell_window_peek_shell (EShellWindow *window)
{
    g_return_val_if_fail (E_IS_SHELL_WINDOW (window), NULL);

    return window->priv->shell.eshell;
}


BonoboUIComponent *
e_shell_window_peek_bonobo_ui_component (EShellWindow *window)
{
    g_return_val_if_fail (E_IS_SHELL_WINDOW (window), NULL);

    return window->priv->ui_component;
}

ESidebar *
e_shell_window_peek_sidebar (EShellWindow *window)
{
    g_return_val_if_fail (E_IS_SHELL_WINDOW (window), NULL);

    return E_SIDEBAR (window->priv->sidebar);
}

GtkWidget *
e_shell_window_peek_statusbar (EShellWindow *window)
{
    return window->priv->status_bar;
}

void
e_shell_window_save_defaults (EShellWindow *window)
{
    GConfClient *client = gconf_client_get_default ();
    char *prop;
    const char *style;
    gboolean visible;

    gconf_client_set_int (client, "/apps/evolution/shell/view_defaults/folder_bar/width",
                  gtk_paned_get_position (GTK_PANED (window->priv->paned)), NULL);

    /* The button styles */
    if ((style = gconf_enum_to_string (button_styles, e_sidebar_get_mode (E_SIDEBAR (window->priv->sidebar))))) {
        gconf_client_set_string (client,
                       "/apps/evolution/shell/view_defaults/buttons_style",
                       style, NULL);
    }

    /* Button hiding setting */
    prop = bonobo_ui_component_get_prop (e_shell_window_peek_bonobo_ui_component (window),
                         "/commands/ViewButtonsHide",
                         "state",
                         NULL);
    if (prop) {
        visible = prop[0] == '0';
        gconf_client_set_bool (client,
                       "/apps/evolution/shell/view_defaults/buttons_visible",
                       visible,
                       NULL);
        g_free (prop);
    }

    /* Toolbar visibility setting */
    prop = bonobo_ui_component_get_prop (e_shell_window_peek_bonobo_ui_component (window),
                         "/commands/ViewToolbar",
                         "state",
                         NULL);
    if (prop) {
        visible = prop[0] == '1';
        gconf_client_set_bool (client,
                       "/apps/evolution/shell/view_defaults/toolbar_visible",
                       visible,
                       NULL);
        g_free (prop);
    }

    /* SideBar visibility setting */
    prop = bonobo_ui_component_get_prop (e_shell_window_peek_bonobo_ui_component (window),
                         "/commands/ViewSideBar",
                         "state",
                         NULL);
    if (prop) {
        visible = prop[0] == '1';
        gconf_client_set_bool (client,
                       "/apps/evolution/shell/view_defaults/sidebar_visible",
                       visible,
                       NULL);
        g_free (prop);
    }


    g_object_unref (client);
}

void
e_shell_window_show_settings (EShellWindow *window)
{
    g_return_if_fail (E_IS_SHELL_WINDOW (window));

    e_shell_show_settings (window->priv->shell.eshell, window->priv->current_view ? window->priv->current_view->component_alias : NULL, window);
}

void
e_shell_window_set_title(EShellWindow *window, const char *component_id, const char *title)
{
    EShellWindowPrivate *priv = window->priv;
    ComponentView *view = NULL;
    GSList *p;

    if (priv->destroyed)
        return;

    for (p = priv->component_views; p != NULL; p = p->next) {
        ComponentView *this_view = p->data;

        if (strcmp (this_view->component_id, component_id) == 0
            || (this_view->component_alias != NULL
            && strcmp (this_view->component_alias, component_id) == 0)) {
            view = p->data;
            break;
        }
    }

    if (view) {
        g_free(view->title);
        view->title = g_strdup(title);
        if (view->title && view == priv->current_view)
            gtk_window_set_title((GtkWindow *)window, title);
    }
}

/**
 * e_shell_window_change_component_button_icon
 * Changes icon of components button at sidebar. For more info how this behaves see
 * info at @ref e_sidebar_change_button_icon.
 * @param window EShellWindow instance.
 * @param component_id ID of the component.
 * @param icon Icon buffer.
 **/
void
e_shell_window_change_component_button_icon (EShellWindow *window, const char *component_id, GdkPixbuf *icon)
{
    EShellWindowPrivate *priv;
    GSList *p;

    g_return_if_fail (window != NULL);
    g_return_if_fail (component_id != NULL);

    priv = window->priv;

    if (priv->destroyed)
        return;

    for (p = priv->component_views; p != NULL; p = p->next) {
        ComponentView *this_view = p->data;

        if (strcmp (this_view->component_id, component_id) == 0
            || (this_view->component_alias != NULL
            && strcmp (this_view->component_alias, component_id) == 0)) {
            e_sidebar_change_button_icon (E_SIDEBAR (priv->sidebar), icon, this_view->button_id);
            break;
        }
    }
}