path: root/widgets/misc/e-search-bar.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-search-bar.c
 *
 * Copyright (C) 2000, 2001 Ximian, Inc.
 *
 * Authors:
 *  Chris Lahey      <clahey@ximian.com>
 *  Ettore Perazzoli <ettore@ximian.com>
 *  Jon Trowbridge   <trow@ximian.com>
 *
 * This library 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */


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

#include <gtk/gtkdrawingarea.h>
#include <gtk/gtkeventbox.h>
#include <gtk/gtkmenuitem.h>
#include <gtk/gtkoptionmenu.h>
#include <gtk/gtkradiomenuitem.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkversion.h>

#include <misc/e-unicode.h>
#include <misc/e-gui-utils.h>

#include <libgnome/gnome-i18n.h>

#include <bonobo/bonobo-ui-util.h>

#include <stdlib.h>
#include <string.h>

#include "e-icon-entry.h"
#include "e-search-bar.h"
#include "e-util/e-util-marshal.h"
#include "e-util/e-icon-factory.h"

enum {
    QUERY_CHANGED,
    MENU_ACTIVATED,
    SEARCH_ACTIVATED,
    SEARCH_CLEARED,
    LAST_SIGNAL
};

static gint esb_signals [LAST_SIGNAL] = { 0, };

static GtkHBoxClass *parent_class = NULL;

/* The arguments we take */
enum {
    PROP_0,
    PROP_ITEM_ID,
    PROP_SUBITEM_ID,
    PROP_TEXT,
};


/* Forward decls.  */

static int find_id (GtkWidget *menu, int idin, const char *type, GtkWidget **widget);

static void emit_search_activated (ESearchBar *esb);
static void emit_query_changed (ESearchBar *esb);


/* Utility functions.  */

static void
set_find_now_sensitive (ESearchBar *search_bar,
            gboolean sensitive)
{
    if (search_bar->ui_component != NULL)
        bonobo_ui_component_set_prop (search_bar->ui_component,
                          "/commands/ESearchBar:FindNow",
                          "sensitive", sensitive ? "1" : "0", NULL);
}

static char *
verb_name_from_id (int id)
{
    return g_strdup_printf ("ESearchBar:Activate:%d", id);
}

/* This implements the "clear" action, i.e. clears the text and then emits
 * ::search_activated.  */

static void
clear_search (ESearchBar *esb)
{
    e_search_bar_set_text (esb, "");
    e_search_bar_set_item_id (esb, 0);
    e_search_bar_set_viewitem_id (esb, 0);

    emit_search_activated (esb);
}

static void
free_menu_items (ESearchBar *esb)
{
    GSList *p;

    if (esb->menu_items == NULL)
        return;

    for (p = esb->menu_items; p != NULL; p = p->next) {
        ESearchBarItem *item;

        item = (ESearchBarItem *) p->data;

        /* (No submitems for the menu_items, so no need to free that
           member.)  */

        g_free (item->text);
        g_free (item);
    }

    g_slist_free (esb->menu_items);
    esb->menu_items = NULL;
}


/* Signals.  */

static void
emit_query_changed (ESearchBar *esb)
{
    g_signal_emit (esb, esb_signals [QUERY_CHANGED], 0);
}

static void
emit_search_activated(ESearchBar *esb)
{
    if (esb->pending_activate) {
        g_source_remove (esb->pending_activate);
        esb->pending_activate = 0;
    }

    g_signal_emit (esb, esb_signals [SEARCH_ACTIVATED], 0);

    set_find_now_sensitive (esb, FALSE);
}

static void
emit_menu_activated (ESearchBar *esb, int item)
{
    g_signal_emit (esb,
               esb_signals [MENU_ACTIVATED], 0,
               item);
}


/* Callbacks -- Standard verbs.  */

static void
search_now_verb_cb (BonoboUIComponent *ui_component,
            void *data,
            const char *verb_name)
{
    ESearchBar *esb;
    GtkStyle *style = gtk_widget_get_default_style ();
    const char *text;

    esb = E_SEARCH_BAR (data);
    text = e_search_bar_get_text (esb);

    if (text && *text) {
        gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
        gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
        gtk_widget_modify_base (esb->viewoption, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));

    } else {
        gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, NULL);
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);        
        gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, NULL);
    }
    
    emit_search_activated (esb);
}

static void
clear_verb_cb (BonoboUIComponent *ui_component,
           void *data,
           const char *verb_name)
{
    ESearchBar *esb;
    esb = E_SEARCH_BAR (data);

    gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, NULL);
    gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
    gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, NULL);

    clear_search (esb);
}

static void
setup_standard_verbs (ESearchBar *search_bar)
{
    bonobo_ui_component_add_verb (search_bar->ui_component, "ESearchBar:Clear",
                      clear_verb_cb, search_bar);
    bonobo_ui_component_add_verb (search_bar->ui_component, "ESearchBar:FindNow",
                      search_now_verb_cb, search_bar);

    bonobo_ui_component_set (search_bar->ui_component, "/",
                 ("<commands>"
                  "  <cmd name=\"ESearchBar:Clear\"/>"
                  "  <cmd name=\"ESearchBar:FindNow\"/>"
                  "</commands>"),
                 NULL);

    /* Make sure the entries are created with the correct sensitivity. */
    set_find_now_sensitive (search_bar, FALSE);
}

/* Callbacks -- The verbs for all the definable items.  */

static void
search_verb_cb (BonoboUIComponent *ui_component,
        void *data,
        const char *verb_name)
{
    ESearchBar *esb;
    const char *p;
    int id;

    esb = E_SEARCH_BAR (data);

    p = strrchr (verb_name, ':');
    g_assert (p != NULL);

    id = atoi (p + 1);

    emit_menu_activated (esb, id);
}

/* Get the selected menu item's label */
static const gchar *
get_selected_item_label (GtkWidget *menu)
{
    GtkWidget *label, *item;
    const gchar *text = NULL;

    item = gtk_menu_get_active ((GtkMenu *)menu);
    label = gtk_bin_get_child ((GtkBin *)item);

    if (GTK_IS_LABEL (label)) 
        text = gtk_label_get_text ((GtkLabel *)label);

    return text;
}

static gboolean
entry_focus_in_cb (GtkWidget *widget,
           GdkEventFocus *event,
           ESearchBar *esb)
{
    GtkStyle *entry_style, *default_style;

    entry_style = gtk_widget_get_style (esb->entry);
    default_style = gtk_widget_get_default_style ();

    if (gdk_color_equal (&(entry_style->text[GTK_STATE_NORMAL]), &(default_style->text[GTK_STATE_INSENSITIVE]))) {
        gtk_entry_set_text (GTK_ENTRY (esb->entry), "");
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
    } 

    return FALSE;
}

static gboolean
entry_focus_out_cb (GtkWidget *widget,
           GdkEventFocus *event,
           ESearchBar *esb)
{
    GtkStyle *style = gtk_widget_get_default_style ();
    const gchar *text = NULL;

    if (!GTK_IS_RADIO_MENU_ITEM (gtk_menu_get_active ( GTK_MENU (esb->option_menu))))
        return FALSE;

    text = gtk_entry_get_text (GTK_ENTRY (widget));
    if (!(text && *text)) {
        /* no query in search entry .. so set the current option */
        text = get_selected_item_label (esb->option_menu);
        if (text && *text) {
            gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_INSENSITIVE]));
            gtk_entry_set_text (GTK_ENTRY (esb->entry), text);
            gtk_widget_hide (esb->clear_button);
        }
    }
    return FALSE;
}

static void
entry_activated_cb (GtkWidget *widget,
             ESearchBar *esb)
{
    const char *text = gtk_entry_get_text (GTK_ENTRY (esb->entry));
    GtkStyle *style = gtk_widget_get_default_style ();

    if (text && *text) {
        gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED])); 
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
        gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED])); 
        gtk_widget_modify_base (esb->viewoption, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
    } else {
        gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, NULL);
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);        
        gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, NULL);
    }
    
    emit_search_activated (esb);
}

static void
entry_changed_cb (GtkWidget *widget,
          ESearchBar *esb)
{
    const char *text = gtk_entry_get_text (GTK_ENTRY (esb->entry));
    GtkStyle *entry_style, *default_style;

    entry_style = gtk_widget_get_style (esb->entry);
    default_style = gtk_widget_get_default_style ();
    
    if (text && *text)
        if (gdk_color_equal (&(entry_style->text[GTK_STATE_NORMAL]), &(default_style->text[GTK_STATE_INSENSITIVE]))) 
            gtk_widget_hide (esb->clear_button);
        else 
            gtk_widget_show (esb->clear_button);
    else
        gtk_widget_hide (esb->clear_button);
}

static void
viewitem_activated_cb(GtkWidget *widget, ESearchBar *esb)
{
    gint viewid;
    GtkStyle *entry_style, *default_style;

    widget = gtk_menu_get_active (GTK_MENU (esb->viewoption_menu));

    viewid = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "EsbItemId"));
    esb->viewitem_id = viewid;

    entry_style = gtk_widget_get_style (esb->entry);
    default_style = gtk_widget_get_default_style ();

    /* If the text is grayed, Its not the query string */
    if (gdk_color_equal (&(entry_style->text[GTK_STATE_NORMAL]), &(default_style->text[GTK_STATE_INSENSITIVE]))) {
        gtk_entry_set_text (GTK_ENTRY (esb->entry), "");
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
    } 

    emit_search_activated (esb);
}

static void
scopeitem_activated_cb(GtkWidget *widget, ESearchBar *esb)
{
    gint scopeid;
    GtkStyle *entry_style, *default_style;

    widget = gtk_menu_get_active (GTK_MENU (esb->scopeoption_menu));

    scopeid = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "EsbItemId"));
    esb->scopeitem_id = scopeid;

    entry_style = gtk_widget_get_style (esb->entry);
    default_style = gtk_widget_get_default_style ();

    /* If the text is grayed, Its not the query string */
    if (gdk_color_equal (&(entry_style->text[GTK_STATE_NORMAL]), &(default_style->text[GTK_STATE_INSENSITIVE]))) {
        gtk_entry_set_text (GTK_ENTRY (esb->entry), "");
        gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
    } 

    emit_search_activated (esb);
}

static char *
string_without_underscores (const char *s)
{
    char *new_string;
    const char *sp;
    char *dp;

    new_string = g_malloc (strlen (s) + 1);

    dp = new_string;
    for (sp = s; *sp != '\0'; sp ++) {
        if (*sp != '_') {
            *dp = *sp;
            dp ++;
        } else if (sp[1] == '_') {
            /* Translate "__" in "_".  */
            *dp = '_';
            dp ++;
            sp ++;
        }
    }
    *dp = 0;

    return new_string;
}

static void
option_activated_cb (GtkWidget *widget,
             ESearchBar *esb)
{
/*  int id; */
         
/*  id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "EsbItemId")); */

/*  esb->item_id = id; */
    emit_query_changed (esb);
    emit_search_activated (esb);
}

static void
option_button_clicked_cb (GtkWidget *widget, GdkEventButton *event,
              ESearchBar *esb)
{
    gtk_menu_popup (GTK_MENU (esb->option_menu), NULL, NULL, NULL, NULL,1,gtk_get_current_event_time());

    gtk_widget_grab_focus (esb->entry);
}

static void
clear_button_clicked_cb (GtkWidget *widget, GdkEventButton *event,
             ESearchBar *esb)
{
    gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, NULL);
    gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
    gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, NULL);

    clear_search (esb);

    gtk_widget_grab_focus (esb->entry);
}

static void
scopeoption_changed_cb (GtkWidget *option_menu, ESearchBar *search_bar)
{
    emit_query_changed (search_bar);
}

/* Widgetry creation.  */

/* This function exists to fix the irreparable GtkOptionMenu stupidity.  In
   fact, this lame-ass widget adds a 1-pixel-wide empty border around the
   button for no reason.  So we have add a 1-pixel-wide border around the the
   buttons we have in the search bar to make things look right.  This is done
   through an event box.  */
static GtkWidget *
put_in_spacer_widget (GtkWidget *widget)
{
    GtkWidget *holder;

    holder = gtk_event_box_new ();
    gtk_container_set_border_width (GTK_CONTAINER (holder), 1);
    gtk_container_add (GTK_CONTAINER (holder), widget);

    return holder;
}

static void
append_xml_menu_item (GString *xml,
              const char *name,
              const char *label,
              const char *stock,
              const char *verb,
              const char *accelerator)
{
    char *encoded_label;
    
    encoded_label = bonobo_ui_util_encode_str (label);
    g_string_append_printf (xml, "<menuitem name=\"%s\" verb=\"%s\" label=\"%s\"",
                name, verb, encoded_label);
    g_free (encoded_label);
    
    if (accelerator != NULL)
        g_string_append_printf (xml, " accel=\"%s\"", accelerator);
    if (stock != NULL)
        g_string_append_printf (xml, " pixtype=\"stock\" pixname=\"%s\"", stock);
    
    g_string_append (xml, "/>");
}

static void
remove_bonobo_menus (ESearchBar *esb)
{
    if (bonobo_ui_component_get_container (esb->ui_component) == CORBA_OBJECT_NIL)
        return;
    
    bonobo_ui_component_rm (esb->ui_component, "/menu/SearchPlaceholder", NULL);
}

static void
setup_bonobo_menus (ESearchBar *esb)
{
    GString *xml;
    GSList *p;
    char *verb_name;
    char *encoded_title;
    
    xml = g_string_new ("");
    
    encoded_title = bonobo_ui_util_encode_str (_("_Search"));
    g_string_append_printf (xml, "<submenu name=\"Search\" label=\"%s\">", encoded_title);
    g_free (encoded_title);
    
    g_string_append (xml, "<placeholder name=\"SearchBar\">");
    
    append_xml_menu_item (xml, "FindNow", _("_Find Now"), "gtk-find", "ESearchBar:FindNow", NULL);
    append_xml_menu_item (xml, "Clear", _("_Clear"), "gtk-clear", "ESearchBar:Clear", "*Control**Shift*q");
    
    for (p = esb->menu_items; p != NULL; p = p->next) {
        const ESearchBarItem *item;
        
        item = (const ESearchBarItem *) p->data;
        
        verb_name = verb_name_from_id (item->id);
        bonobo_ui_component_add_verb (esb->ui_component, verb_name, search_verb_cb, esb);
        
        if (item->text == NULL)
            g_string_append (xml, "<separator/>");
        else
            append_xml_menu_item (xml, verb_name, item->text, NULL, verb_name, NULL);
        
        g_free (verb_name);
    }
    
    g_string_append (xml, "</placeholder>");
    g_string_append (xml, "</submenu>");
    
    remove_bonobo_menus (esb);
    bonobo_ui_component_set (esb->ui_component, "/menu/SearchPlaceholder", xml->str, NULL);

    g_string_free (xml, TRUE);
}

static void
update_bonobo_menus (ESearchBar *esb)
{
    setup_bonobo_menus (esb);
}

static void
set_menu (ESearchBar *esb,
      ESearchBarItem *items)
{
    int i;

    free_menu_items (esb);

    if (items == NULL)
        return;

    for (i = 0; items[i].id != -1; i++) {
        ESearchBarItem *new_item;

        new_item = g_new (ESearchBarItem, 1);
        new_item->text     = items[i].text ? g_strdup (_(items[i].text)) : NULL;
        new_item->id       = items[i].id;
        new_item->type     = items[i].type;

        esb->menu_items = g_slist_append (esb->menu_items, new_item);
    }

    if (esb->ui_component != NULL)
        update_bonobo_menus (esb);
}

/* /\* Callback used when an option item is destroyed.  We have to destroy its */
/*  * suboption items. */
/*  *\/ */
/* static void */
/* option_item_destroy_cb (GtkObject *object, gpointer data) */
/* { */
/* /\*  ESearchBarSubitem *subitems; *\/ */

/* /\*  subitems = data; *\/ */

/* /\*  g_assert (subitems != NULL); *\/ */
/* /\*  free_subitems (subitems); *\/ */
/* /\*  g_object_set_data (G_OBJECT (object), "EsbChoiceSubitems", NULL); *\/ */
/* } */

static void
set_option (ESearchBar *esb, ESearchBarItem *items)
{
    GtkWidget *menu;
    GSList *group = NULL;
    int i;

    if (esb->option) 
        gtk_widget_destroy (esb->option_menu);

    esb->option_menu = menu = gtk_menu_new ();
    for (i = 0; items[i].id != -1; i++) {
        GtkWidget *item;

        /* Create a new group */
        if (items[i].id == 0)
            group = 0;

        if (items[i].text) {
            char *str;
            str = string_without_underscores (_(items[i].text));
            switch (items[i].type) {
                case ESB_ITEMTYPE_NORMAL:
                    item = gtk_menu_item_new_with_label (str);
                    break;
                case ESB_ITEMTYPE_CHECK:
                    item = gtk_check_menu_item_new_with_label (str);                    
                    break;
                case ESB_ITEMTYPE_RADIO:
                    item = gtk_radio_menu_item_new_with_label (group, str);
                    group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM (item));
                    break;
                default:
                    /* Fixme : this should be a normal item */
                    item = gtk_radio_menu_item_new_with_label (group, str);
                    group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM (item));
                    break;
            }
            g_free (str);
        } else {
            item = gtk_menu_item_new ();
            gtk_widget_set_sensitive (item, FALSE);
        }

        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);

        g_object_set_data (G_OBJECT (item), "EsbItemId", GINT_TO_POINTER(items[i].id));

        g_signal_connect (item, "activate",
                  G_CALLBACK (option_activated_cb),
                  esb);
    }

    gtk_widget_show_all (menu);

    gtk_option_menu_set_history (GTK_OPTION_MENU (esb->option), 0);

    entry_focus_out_cb (esb->entry, NULL, esb);
}

static int
find_id (GtkWidget *menu, int idin, const char *type, GtkWidget **widget)
{
    GList *l = GTK_MENU_SHELL (menu)->children;
    int row = -1, i = 0, id;

    if (widget)
        *widget = NULL;
    while (l) {
        id = GPOINTER_TO_INT (g_object_get_data (l->data, type));
        if (id == idin) {
            row = i;
            if (widget)
                *widget = l->data;
            break;
        }
        i++;
        l = l->next;
    }
    return row;
}


/* GtkObject methods.  */

static void
impl_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    ESearchBar *esb = E_SEARCH_BAR (object);

    switch (prop_id) {
    case PROP_ITEM_ID:
        g_value_set_int (value, e_search_bar_get_item_id (esb));
        break;

    case PROP_TEXT:
        g_value_set_string_take_ownership (value, e_search_bar_get_text (esb));
        break;

    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

static void
impl_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
    ESearchBar *esb = E_SEARCH_BAR(object);
    
    switch (prop_id) {
    case PROP_ITEM_ID:
        e_search_bar_set_item_id (esb, g_value_get_int (value));
        break;

    case PROP_TEXT:
        e_search_bar_set_text (esb, g_value_get_string (value));
        break;
        
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

static void
impl_dispose (GObject *object)
{
    ESearchBar *esb = E_SEARCH_BAR (object);
    
    g_return_if_fail (object != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (object));

    /* These three we do need to unref, because we explicitly hold
       references to them. */

    if (esb->ui_component != NULL) {
        bonobo_object_unref (BONOBO_OBJECT (esb->ui_component));
        esb->ui_component = NULL;
    }
/*  if (esb->entry) { */
/*      g_object_unref (esb->entry); */
/*      esb->entry = NULL; */
/*  } */
    if (esb->suboption) {
        g_object_unref (esb->suboption);
        esb->suboption = NULL;
    }
    
    if (esb->pending_activate) {
        g_source_remove (esb->pending_activate);
        esb->pending_activate = 0;
    }

    free_menu_items (esb);
    
    if (G_OBJECT_CLASS (parent_class)->dispose)
        G_OBJECT_CLASS (parent_class)->dispose (object);
}


static void
class_init (ESearchBarClass *klass)
{
    GObjectClass *object_class;
    
    object_class = G_OBJECT_CLASS (klass);
    
    parent_class = g_type_class_ref (gtk_hbox_get_type ());
    
    object_class->set_property = impl_set_property;
    object_class->get_property = impl_get_property;
    object_class->dispose = impl_dispose;
    
    klass->set_menu = set_menu;
    klass->set_option = set_option;

    g_object_class_install_property (object_class, PROP_ITEM_ID,
                     g_param_spec_int ("item_id",
                               _("Item ID"),
                               /*_( */"XXX blurb" /*)*/,
                               0, 0, 0,
                               G_PARAM_READWRITE | G_PARAM_LAX_VALIDATION));

    g_object_class_install_property (object_class, PROP_TEXT, 
                     g_param_spec_string ("text",
                                  _("Text"),
                                  /*_( */"XXX blurb" /*)*/,
                                  NULL,
                                  G_PARAM_READWRITE));
    
    esb_signals [QUERY_CHANGED] =
        g_signal_new ("query_changed",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ESearchBarClass, query_changed),
                  NULL, NULL,
                  e_util_marshal_NONE__NONE,
                  G_TYPE_NONE, 0);
    
    esb_signals [MENU_ACTIVATED] =
        g_signal_new ("menu_activated",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ESearchBarClass, menu_activated),
                  NULL, NULL,
                  e_util_marshal_NONE__INT,
                  G_TYPE_NONE, 1, G_TYPE_INT);

    esb_signals [SEARCH_ACTIVATED] =
        g_signal_new ("search_activated",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ESearchBarClass, search_activated),
                  NULL, NULL,
                  e_util_marshal_NONE__NONE,
                  G_TYPE_NONE, 0);

}

static void
init (ESearchBar *esb)
{
    esb->ui_component     = NULL;
    esb->menu_items       = NULL;

    esb->option           = NULL;
    esb->entry            = NULL;
    esb->suboption        = NULL;
    
    esb->option_menu      = NULL;
    esb->suboption_menu   = NULL;
    esb->option_button    = NULL;
    esb->clear_button     = NULL;
    esb->entry_box        = NULL;

    esb->scopeoption_menu = NULL;
    esb->scopeoption      = NULL;
    esb->scopeoption_box  = NULL;

    esb->pending_activate = 0;

    esb->item_id          = 0;
    esb->scopeitem_id     = 0;
}


/* Object construction.  */

static gint
idle_activate_hack (gpointer ptr)
{
    ESearchBar *esb = E_SEARCH_BAR (ptr);
    esb->pending_activate = 0;
    emit_search_activated (esb);
    return FALSE;
}

void
e_search_bar_construct (ESearchBar *search_bar,
            ESearchBarItem *menu_items,
            ESearchBarItem *option_items)
{
    GtkWidget *label, *hbox, *bighbox;

    g_return_if_fail (search_bar != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    g_return_if_fail (option_items != NULL);

    gtk_box_set_spacing (GTK_BOX (search_bar), 3);

    gtk_box_set_homogeneous (GTK_BOX (search_bar), FALSE);

    bighbox = gtk_hbox_new (FALSE, 0);
    search_bar->entry_box = gtk_hbox_new (0, FALSE);
    search_bar->icon_entry = e_icon_entry_new ();
    search_bar->entry = e_icon_entry_get_entry (E_ICON_ENTRY (search_bar->icon_entry));

    g_signal_connect (search_bar->entry, "changed",
              G_CALLBACK (entry_changed_cb), search_bar);
    g_signal_connect (search_bar->entry, "activate",
              G_CALLBACK (entry_activated_cb), search_bar);
    g_signal_connect (search_bar->entry, "focus-in-event",
              G_CALLBACK (entry_focus_in_cb), search_bar);
    g_signal_connect (search_bar->entry, "focus-out-event",
              G_CALLBACK (entry_focus_out_cb), search_bar);

    search_bar->clear_button = e_icon_entry_create_button ("gtk-clear");
    g_signal_connect (G_OBJECT (search_bar->clear_button), "button-press-event", clear_button_clicked_cb, search_bar);
    e_icon_entry_pack_widget (E_ICON_ENTRY (search_bar->icon_entry), search_bar->clear_button, FALSE);

    search_bar->option_button = e_icon_entry_create_button ("gtk-find");
    g_signal_connect (G_OBJECT (search_bar->option_button), "button-press-event", option_button_clicked_cb, search_bar);
    e_icon_entry_pack_widget (E_ICON_ENTRY (search_bar->icon_entry), search_bar->option_button, TRUE);

    gtk_box_pack_start (GTK_BOX(search_bar->entry_box), search_bar->icon_entry, FALSE, FALSE, 0);

    gtk_widget_show_all (search_bar->entry_box);
    gtk_widget_hide (search_bar->clear_button);

    /* Current View filter */
    search_bar->viewoption_box = gtk_hbox_new (0, FALSE);

    /* To Translators: The "Show: " label is followed by the Quick Search Dropdown Menu where you can choose
    to display "All Messages", "Unread Messages", "Message with 'Important' Label" and so on... */
    label = gtk_label_new_with_mnemonic (_("Show: "));
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX(search_bar->viewoption_box), label, FALSE, FALSE, 0);

    search_bar->viewoption = gtk_option_menu_new ();
    gtk_box_pack_start (GTK_BOX(search_bar->viewoption_box), search_bar->viewoption, FALSE, TRUE, 0);
    gtk_widget_show_all (search_bar->viewoption_box);
    gtk_box_pack_start (GTK_BOX(search_bar), search_bar->viewoption_box, FALSE, FALSE, 0);

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX(search_bar), hbox, FALSE, FALSE, 0);    

    /* Search entry */
    hbox = gtk_hbox_new (FALSE, 0);
    /* To Translators: The "Show: " label is followed by the Quick Search Text input field where one enters
    the term to search for */
    label = gtk_label_new_with_mnemonic (_("S_earch: "));
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
    gtk_box_pack_start (GTK_BOX(hbox), search_bar->entry_box, FALSE, FALSE, 0);
    gtk_widget_show (search_bar->entry_box);

    /* Search Scope Widgets */
    search_bar->scopeoption_box = gtk_hbox_new (0, FALSE);
    gtk_box_set_spacing (GTK_BOX (search_bar->scopeoption_box), 3);
    /* To Translators: The " in " label is part of the Quick Search Bar, example:
    Search: | <user's_search_term> | in | Current Folder/All Accounts/Current Account */
    label = gtk_label_new_with_mnemonic (_(" in "));
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX(search_bar->scopeoption_box), label, FALSE, FALSE, 0);

    search_bar->scopeoption = gtk_option_menu_new ();
    g_signal_connect (GTK_OPTION_MENU (search_bar->scopeoption), "changed", scopeoption_changed_cb, search_bar);
    gtk_box_pack_start (GTK_BOX(search_bar->scopeoption_box), search_bar->scopeoption, FALSE, FALSE, 0);
    gtk_widget_show_all (search_bar->scopeoption_box);
    gtk_widget_hide (hbox);

    gtk_box_pack_end (GTK_BOX(hbox), search_bar->scopeoption_box, FALSE, FALSE, 0);
    gtk_widget_hide (search_bar->scopeoption_box);
    
    gtk_box_pack_end (GTK_BOX(search_bar), hbox, FALSE, FALSE, 0);
    gtk_widget_show (hbox);

    /* Set the menu */
    e_search_bar_set_menu (search_bar, menu_items);
    e_search_bar_set_option (search_bar, option_items);

    /* 
     * If the default choice for the option menu has subitems, then we need to
     * activate the search immediately.  However, the developer won't have
     * connected to the activated signal until after the object is constructed,
     * so we can't emit here.  Thus we launch a one-shot idle function that will
     * emit the changed signal, so that the proper callback will get invoked.
     */

    search_bar->pending_activate = g_idle_add (idle_activate_hack, search_bar);
}

void
e_search_bar_set_menu (ESearchBar *search_bar, ESearchBarItem *menu_items)
{
    g_return_if_fail (search_bar != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    
    ((ESearchBarClass *) GTK_OBJECT_GET_CLASS (search_bar))->set_menu (search_bar, menu_items);
}

void
e_search_bar_add_menu (ESearchBar *search_bar, ESearchBarItem *menu_item)
{
    g_return_if_fail (search_bar != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    
    set_menu (search_bar, menu_item);
}

void
e_search_bar_set_option (ESearchBar *search_bar, ESearchBarItem *option_items)
{
    g_return_if_fail (search_bar != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    g_return_if_fail (option_items != NULL);
    
    ((ESearchBarClass *) GTK_OBJECT_GET_CLASS (search_bar))->set_option (search_bar, option_items);
}

void
e_search_bar_set_viewoption_menufunc (ESearchBar *search_bar, ESearchBarMenuFunc *menu_gen_func, void *data)
{
    g_signal_connect (search_bar->viewoption, "button_press_event", G_CALLBACK (menu_gen_func), data);
}

/**
 * e_search_bar_set_viewoption_menu:
 * @search_bar: A search bar.
 * @option_id: Identifier of the main option menu item under which the subitems
 * are to be set.
 * @subitems: Array of subitem information.
 * 
 * Sets the items for the secondary option menu of a search bar.
 **/
void 
e_search_bar_set_viewoption_menu (ESearchBar *search_bar, GtkWidget *menu)
{

    if (search_bar->viewoption_menu != NULL) 
        gtk_option_menu_remove_menu (GTK_OPTION_MENU (search_bar->viewoption));
    
    search_bar->viewoption_menu = menu; 
    gtk_option_menu_set_menu (GTK_OPTION_MENU (search_bar->viewoption), search_bar->viewoption_menu); 

    g_signal_connect (search_bar->viewoption_menu,
              "selection-done",
              G_CALLBACK (viewitem_activated_cb),
              search_bar);
}

GtkWidget *
e_search_bar_get_selected_viewitem (ESearchBar *search_bar)
{
    GtkWidget *widget = NULL;

    widget = gtk_menu_get_active (GTK_MENU (search_bar->viewoption_menu));

    return widget;
}

/**
 * e_search_bar_set_viewoption:
 * @search_bar: A search bar.
 * @option_id: Identifier of the main option menu item under which the subitems
 * are to be set.
 * @subitems: Array of subitem information.
 * 
 * Sets the items for the secondary option menu of a search bar.
 **/
void
e_search_bar_set_viewoption (ESearchBar *search_bar, int option_id, ESearchBarItem *subitems)
{
    GtkWidget *menu;
    GtkWidget *menu_item;
    gint i;

    /* Create the menu if it is not there. right scenario ????*/

    if (search_bar->viewoption_menu == NULL) {
        search_bar->viewoption_menu = menu = gtk_menu_new ();
    } else {
        gtk_option_menu_remove_menu (GTK_OPTION_MENU (search_bar->viewoption));
        search_bar->viewoption_menu = menu = gtk_menu_new ();
    }

    /* Create the items */

    for (i = 0; subitems[i].id != -1; ++i) {
        if (subitems[i].text) {
            char *str = NULL;
            str = string_without_underscores (subitems[i].text);
            menu_item = gtk_menu_item_new_with_label (str);
            g_free (str);
        } else {
            menu_item = gtk_menu_item_new ();
            gtk_widget_set_sensitive (menu_item, FALSE);
        }

        g_object_set_data (G_OBJECT (menu_item), "EsbItemId",
                   GINT_TO_POINTER (subitems[i].id));

        g_signal_connect (menu_item,
                  "activate",
                  G_CALLBACK (viewitem_activated_cb),
                  search_bar);

        gtk_widget_show (menu_item);
        gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
    }
        gtk_option_menu_set_menu (GTK_OPTION_MENU (search_bar->viewoption), menu);

}

/**
 * e_search_bar_set_scopeoption:
 * @search_bar: A search bar.
 * are to be set.
 * @scopeitems: Array of scope information.
 * 
 * Sets the items for the search scope option menu of a search bar.
 **/
void
e_search_bar_set_scopeoption (ESearchBar *search_bar, ESearchBarItem *scopeitems)
{
    GtkWidget *menu;
    GtkWidget *menu_item;
    gint i;
    
    gtk_widget_show (search_bar->scopeoption_box);
    if (search_bar->scopeoption_menu != NULL) {
        gtk_option_menu_remove_menu (GTK_OPTION_MENU (search_bar->scopeoption));
    }

    search_bar->scopeoption_menu = menu = gtk_menu_new ();

    /* Generate items */
    for (i = 0; scopeitems[i].id != -1; ++i) {
        if (scopeitems[i].text) {
            char *str;
            str = string_without_underscores (scopeitems[i].text);
            menu_item = gtk_menu_item_new_with_label (str);
            g_free (str);
        } else {
            menu_item = gtk_menu_item_new ();
            gtk_widget_set_sensitive (menu_item, FALSE);
        }

        g_object_set_data (G_OBJECT (menu_item), "EsbItemId",
                   GINT_TO_POINTER (scopeitems[i].id));

        g_signal_connect (menu_item,
                  "activate",
                  G_CALLBACK (scopeitem_activated_cb),
                  search_bar);

        gtk_widget_show (menu_item);
        gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
    }
        gtk_option_menu_set_menu (GTK_OPTION_MENU (search_bar->scopeoption), menu);
}


/**
 * e_search_bar_set_scopeoption_menu:
 * @search_bar: A search bar.
 * @menu: the scope option menu 
 *
 * Sets the items for the secondary option menu of a search bar.
 **/
void 
e_search_bar_set_scopeoption_menu (ESearchBar *search_bar, GtkMenu *menu)
{

    if (search_bar->scopeoption_menu != NULL) 
        gtk_option_menu_remove_menu (GTK_OPTION_MENU (search_bar->scopeoption));
    
    search_bar->scopeoption_menu = GTK_WIDGET (menu);   
    gtk_option_menu_set_menu (GTK_OPTION_MENU (search_bar->scopeoption), search_bar->scopeoption_menu); 

    g_signal_connect (search_bar->scopeoption_menu,
              "selection-done",
              G_CALLBACK (scopeitem_activated_cb),
              search_bar);
}

GtkWidget *
e_search_bar_new (ESearchBarItem *menu_items,
          ESearchBarItem *option_items)
{
    GtkWidget *widget;

    g_return_val_if_fail (option_items != NULL, NULL);
    
    widget = GTK_WIDGET (gtk_type_new (e_search_bar_get_type ()));
    
    e_search_bar_construct (E_SEARCH_BAR (widget), menu_items, option_items);
    
    return widget;
}

void
e_search_bar_set_ui_component (ESearchBar *search_bar,
                   BonoboUIComponent *ui_component)
{
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));

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

    search_bar->ui_component = ui_component;
    if (ui_component != NULL) {
        bonobo_object_ref (BONOBO_OBJECT (ui_component));
        setup_standard_verbs (search_bar);
        setup_bonobo_menus (search_bar);
    }
}

void
e_search_bar_set_menu_sensitive (ESearchBar *search_bar, int id, gboolean state)
{
    char *verb_name;
    char *path;

    verb_name = verb_name_from_id (id);
    path = g_strconcat ("/commands/", verb_name, NULL);
    g_free (verb_name);

    bonobo_ui_component_set_prop (search_bar->ui_component, path,
                      "sensitive", state ? "1" : "0",
                      NULL);

    g_free (path);
}

GType
e_search_bar_get_type (void)
{
    static GType type = 0;

    if (!type) {
        static const GTypeInfo info =  {
            sizeof (ESearchBarClass),
            NULL,           /* base_init */
            NULL,           /* base_finalize */
            (GClassInitFunc) class_init,
            NULL,           /* class_finalize */
            NULL,           /* class_data */
            sizeof (ESearchBar),
            0,             /* n_preallocs */
            (GInstanceInitFunc) init,
        };

        type = g_type_register_static (gtk_hbox_get_type (), "ESearchBar", &info, 0);
    }

    return type;
}

void
e_search_bar_set_viewitem_id (ESearchBar *search_bar, int id)
{
    int row;
    
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    
    row = find_id (search_bar->viewoption_menu, id, "EsbItemId", NULL);
    g_return_if_fail (row != -1);
    
    search_bar->viewitem_id = id;
    gtk_option_menu_set_history (GTK_OPTION_MENU (search_bar->viewoption), row);

    emit_query_changed (search_bar);
}

/**
 * e_search_bar_set_item_id:
 * @search_bar: A search bar.
 * @id: Identifier of the item to set.
 * 
 * Sets the active item in the options menu of a search bar.
 **/
void
e_search_bar_set_item_id (ESearchBar *search_bar, int id)
{
    int row;
    
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    
    row = find_id (search_bar->option_menu, id, "EsbItemId", NULL);
    g_return_if_fail (row != -1);
    
    search_bar->item_id = id;
    gtk_menu_set_active (search_bar->option_menu, row);

    emit_query_changed (search_bar);
}

/**
 * e_search_bar_set_search_scope:
 * @search_bar: A search bar.
 * @id: Identifier of the item to set.
 * 
 * Sets the active item in the options menu of a search bar.
 **/
void
e_search_bar_set_search_scope (ESearchBar *search_bar, int id)
{
    int row;
    
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    
    row = find_id (search_bar->option_menu, id, "EsbItemId", NULL);
    g_return_if_fail (row != -1);
    
    search_bar->item_id = id;
    gtk_option_menu_set_history (GTK_OPTION_MENU (search_bar->option), row);

    emit_query_changed (search_bar);
}


/**
 * e_search_bar_get_item_id:
 * @search_bar: A search bar.
 * 
 * Queries the currently selected item in the options menu of a search bar.
 * 
 * Return value: Identifier of the selected item in the options menu.
 **/
int
e_search_bar_get_item_id (ESearchBar *search_bar)
{
    GtkWidget *menu_item;
    gint item_id;

    g_return_val_if_fail (search_bar != NULL, -1);
    g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), -1);
    
    menu_item = gtk_menu_get_active (GTK_MENU (search_bar->option_menu));
    item_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "EsbItemId"));
    search_bar->item_id = item_id;

    return search_bar->item_id;
}

/**
 * e_search_bar_get_search_scope:
 * @search_bar: A search bar.
 * 
 * Queries the currently selected search type in the options menu of a search bar.
 * 
 * Return value: Identifier of the selected item in the options menu.
 **/
int
e_search_bar_get_search_scope (ESearchBar *search_bar)
{
    GtkWidget *menu_item;
    gint scopeitem_id;

    g_return_val_if_fail (search_bar != NULL, -1);
    g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), -1);

    menu_item = gtk_menu_get_active (GTK_MENU (search_bar->scopeoption_menu));
    scopeitem_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "EsbItemId"));

    search_bar->scopeitem_id = scopeitem_id;

    return search_bar->scopeitem_id;
}

/**
 * e_search_bar_get_viewitem_id:
 * @search_bar: A search bar.
 * 
 * Queries the currently selected item in the viewoptions menu of a search bar.
 * 
 * Return value: Identifier of the selected item in the viewoptions menu.
 * If the search bar currently contains an entry rather than a a viewoption menu,
 * a value less than zero is returned.
 **/
int
e_search_bar_get_viewitem_id (ESearchBar *search_bar)
{
    GtkWidget *menu_item;
    gint viewitem_id;

    g_return_val_if_fail (search_bar != NULL, -1);
    g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), -1);
    
    menu_item = gtk_menu_get_active (GTK_MENU (search_bar->viewoption_menu));
    viewitem_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "EsbItemId"));

    search_bar->viewitem_id = viewitem_id;

    return search_bar->viewitem_id;
}

/**
 * e_search_bar_set_ids:
 * @search_bar: A search bar.
 * @item_id: Identifier of the item to set.
 * @subitem_id: Identifier of the subitem to set.
 * 
 * Sets the item and subitem ids for a search bar.  This is intended to switch
 * to an item that has subitems.
 **/
void
e_search_bar_set_ids (ESearchBar *search_bar, int item_id, int subitem_id)
{
    int item_row;
    GtkWidget *item_widget;

    g_return_if_fail (search_bar != NULL);
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));

    item_row = find_id (search_bar->option_menu, item_id, "EsbChoiceId", &item_widget);
    g_return_if_fail (item_row != -1);
    g_assert (item_widget != NULL);

    search_bar->item_id = item_id;
    gtk_option_menu_set_history (GTK_OPTION_MENU (search_bar->option), item_row);

}

/**
 * e_search_bar_set_text:
 * @search_bar: A search bar.
 * @text: Text to set in the search bar's entry line.
 *
 * Sets the text string inside the entry line of a search bar.
 **/
void
e_search_bar_set_text (ESearchBar *search_bar, const char *text)
{
    g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
    gtk_entry_set_text (GTK_ENTRY (search_bar->entry), text);
}

/**
 * e_search_bar_get_text:
 * @search_bar: A search bar.
 * 
 * Queries the text of the entry line in a search bar.
 * 
 * Return value: The text string that is in the entry line of the search bar.
 * This must be freed using g_free().  If a suboption menu is active instead
 * of an entry, NULL is returned.
 **/
char *
e_search_bar_get_text (ESearchBar *search_bar)
{
    GtkStyle *entry_style, *default_style;

    g_return_val_if_fail (search_bar != NULL, NULL);
    g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), NULL);

    entry_style = gtk_widget_get_style (search_bar->entry);
    default_style = gtk_widget_get_default_style ();

    if (gdk_color_equal (&(entry_style->text[GTK_STATE_NORMAL]), &(default_style->text[GTK_STATE_INSENSITIVE]))) {
        gtk_entry_set_text (GTK_ENTRY (search_bar->entry), "");
        gtk_widget_modify_text (search_bar->entry, GTK_STATE_NORMAL, NULL);
    }   

    return g_strdup (gtk_entry_get_text (GTK_ENTRY (search_bar->entry)));
}