path: root/e-util/e-name-selector-list.c

/*
 * Single-line text entry widget for EDestinations.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Srinivasa Ragavan <sragavan@novell.com>
 *      Devashish Sharma  <sdevashish@novell.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <glib/gi18n-lib.h>

#include "e-name-selector-list.h"
#include "e-name-selector-entry.h"

#define E_NAME_SELECTOR_LIST_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_NAME_SELECTOR_LIST, ENameSelectorListPrivate))

#define MAX_ROW 10

struct _ENameSelectorListPrivate {
    GtkWindow *popup;
    GtkWidget *tree_view;
    GtkWidget *menu;
    gint rows;
    GdkDevice *grab_keyboard;
    GdkDevice *grab_pointer;
};

G_DEFINE_TYPE (ENameSelectorList, e_name_selector_list, E_TYPE_NAME_SELECTOR_ENTRY)

/* Signals */

static void
enl_popup_size (ENameSelectorList *list)
{
    gint height = 0, count;
    GtkAllocation allocation;
    GtkTreeViewColumn *column = NULL;

    column = gtk_tree_view_get_column ( GTK_TREE_VIEW (list->priv->tree_view), 0);
    if (column)
        gtk_tree_view_column_cell_get_size (column, NULL, NULL, NULL, NULL, &height);

    /* Show a maximum of 10 rows in the popup list view */
    count = list->priv->rows;
    if (count > MAX_ROW)
        count = MAX_ROW;
    if (count <= 0)
        count = 1;

    gtk_widget_get_allocation (GTK_WIDGET (list), &allocation);
    gtk_widget_set_size_request (list->priv->tree_view, allocation.width - 3 , height * count);
}

static void
enl_popup_position (ENameSelectorList *list)
{
    GtkAllocation allocation;
    GdkWindow *window;
    gint x,y;

    gtk_widget_get_allocation (GTK_WIDGET (list), &allocation);

    enl_popup_size (list);
    window = gtk_widget_get_window (GTK_WIDGET (list));
    gdk_window_get_origin (window, &x, &y);
    y = y + allocation.height;

    gtk_window_move (list->priv->popup, x, y);
}

static gboolean
popup_grab_on_window (GdkWindow *window,
                      GdkDevice *keyboard,
                      GdkDevice *pointer,
                      guint32 activate_time)
{
    if (keyboard && gdk_device_grab (keyboard, window,
            GDK_OWNERSHIP_WINDOW, TRUE,
            GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
            NULL, activate_time) != GDK_GRAB_SUCCESS)
        return FALSE;

    if (pointer && gdk_device_grab (pointer, window,
            GDK_OWNERSHIP_WINDOW, TRUE,
            GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
            GDK_POINTER_MOTION_MASK,
            NULL, activate_time) != GDK_GRAB_SUCCESS) {
        if (keyboard)
            gdk_device_ungrab (keyboard, activate_time);

        return FALSE;
    }

    return TRUE;
}

static void
enl_popup_grab (ENameSelectorList *list,
                const GdkEvent *event)
{
    EDestinationStore *store;
    ENameSelectorEntry *entry;
    GdkWindow *window;
    GdkDevice *device = NULL;
    GdkDevice *keyboard, *pointer;
    gint len;

    if (list->priv->grab_pointer && list->priv->grab_keyboard)
        return;

    window = gtk_widget_get_window (GTK_WIDGET (list->priv->popup));

    if (event)
        device = gdk_event_get_device (event);
    if (!device)
        device = gtk_get_current_event_device ();
    if (!device) {
        GdkDeviceManager *device_manager;

        device_manager = gdk_display_get_device_manager (gtk_widget_get_display (GTK_WIDGET (list)));
        device = gdk_device_manager_get_client_pointer (device_manager);
    }

    if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD) {
        keyboard = device;
        pointer = gdk_device_get_associated_device (device);
    } else {
        pointer = device;
        keyboard = gdk_device_get_associated_device (device);
    }

    if (!popup_grab_on_window (window, keyboard, pointer, gtk_get_current_event_time ()))
        return;

    gtk_widget_grab_focus ((GtkWidget *) list);

    /* Build the listview from the model */
    entry = E_NAME_SELECTOR_ENTRY (list);
    store = e_name_selector_entry_peek_destination_store (entry);
    gtk_tree_view_set_model (
        GTK_TREE_VIEW (list->priv->tree_view),
        GTK_TREE_MODEL (store));

    /* If any selection of text is present, unselect it */
    len = strlen (gtk_entry_get_text (GTK_ENTRY (list)));
    gtk_editable_select_region (GTK_EDITABLE (list), len, -1);

    gtk_device_grab_add (GTK_WIDGET (list->priv->popup), pointer, TRUE);
    list->priv->grab_keyboard = keyboard;
    list->priv->grab_pointer = pointer;
}

static void
enl_popup_ungrab (ENameSelectorList *list)
{
    if (!list->priv->grab_pointer ||
        !list->priv->grab_keyboard ||
        !gtk_widget_has_grab (GTK_WIDGET (list->priv->popup)))
        return;

    gtk_device_grab_remove (GTK_WIDGET (list->priv->popup), list->priv->grab_pointer);
    gtk_device_grab_remove (GTK_WIDGET (list->priv->popup), list->priv->grab_keyboard);

    list->priv->grab_pointer = NULL;
    list->priv->grab_keyboard = NULL;
}

static gboolean
enl_entry_focus_in (ENameSelectorList *list,
                    GdkEventFocus *event,
                    gpointer dummy)
{
    gint len;

    /* FIXME: Dont select every thing by default- Code is there but still it does */
    len = strlen (gtk_entry_get_text (GTK_ENTRY (list)));
    gtk_editable_select_region (GTK_EDITABLE (list), len, -1);

    return TRUE;
}

static gboolean
enl_entry_focus_out (ENameSelectorList *list,
                     GdkEventFocus *event,
                     gpointer dummy)
{
    /* When we lose focus and popup is still present hide it. Dont do it, when we click the popup. Look for grab */
    if (gtk_widget_get_visible (GTK_WIDGET (list->priv->popup))
        && !gtk_widget_has_grab (GTK_WIDGET (list->priv->popup))) {
        enl_popup_ungrab (list);
        gtk_widget_hide ((GtkWidget *) list->priv->popup);

        return FALSE;
    }

    return FALSE;
}

static gboolean
enl_popup_button_press (GtkWidget *widget,
                        GdkEventButton *event,
                        ENameSelectorList *list)
{
    if (!gtk_widget_get_mapped (widget))
        return FALSE;

    /* if we come here, it's usually time to popdown */
    gtk_widget_hide ((GtkWidget *) list->priv->popup);

    return TRUE;
}

static gboolean
enl_popup_focus_out (GtkWidget *w,
                     GdkEventFocus *event,
                     ENameSelectorList *list)
{
    /* Just ungrab. We lose focus on button press event */
    enl_popup_ungrab (list);
    return TRUE;
}

static gboolean
enl_popup_enter_notify (GtkWidget *widget,
                        GdkEventCrossing *event,
                        ENameSelectorList *list)
{
    if (event->type == GDK_ENTER_NOTIFY && !gtk_widget_has_grab (GTK_WIDGET (list->priv->popup)))
        enl_popup_grab (list, (GdkEvent *) event);

    return TRUE;
}

static void
enl_tree_select_node (ENameSelectorList *list,
                      gint n)
{
    EDestinationStore *store;
    ENameSelectorEntry *entry;
    GtkTreeSelection *selection;
    GtkTreeViewColumn *column;
    GtkTreeView *tree_view;
    GtkTreeIter iter;
    GtkTreePath *path;

    entry = E_NAME_SELECTOR_ENTRY (list);
    tree_view = GTK_TREE_VIEW (list->priv->tree_view);
    store = e_name_selector_entry_peek_destination_store (entry);
    selection = gtk_tree_view_get_selection (tree_view);
    iter.stamp = e_destination_store_get_stamp (store);
    iter.user_data = GINT_TO_POINTER (n - 1);

    gtk_tree_selection_unselect_all (selection);
    gtk_tree_selection_select_iter (selection, &iter);

    column = gtk_tree_view_get_column (tree_view, 0);
    path = e_destination_store_get_path (GTK_TREE_MODEL (store), &iter);
    gtk_tree_view_scroll_to_cell (tree_view, path, column, FALSE, 0, 0);
    gtk_tree_view_set_cursor (tree_view, path, column, FALSE);
    gtk_widget_grab_focus (GTK_WIDGET (tree_view));
    /*Fixme: We should grab the focus to the column. How? */

    gtk_tree_path_free (path);
}

static gboolean
enl_entry_key_press_event (ENameSelectorList *list,
                           GdkEventKey *event,
                           gpointer dummy)
{
    ENameSelectorEntry *entry;
    EDestinationStore *store;

    entry = E_NAME_SELECTOR_ENTRY (list);
    store = e_name_selector_entry_peek_destination_store (entry);

    if ( (event->state & GDK_CONTROL_MASK)  && (event->keyval == GDK_KEY_Down)) {
        enl_popup_position (list);
        gtk_widget_show_all (GTK_WIDGET (list->priv->popup));
        enl_popup_grab (list, (GdkEvent *) event);
        list->priv->rows = e_destination_store_get_destination_count (store);
        enl_popup_size (list);
        enl_tree_select_node (list, 1);
        return TRUE;
    }
    return FALSE;
}

static void
delete_row (GtkTreePath *path,
            ENameSelectorList *list)
{
    ENameSelectorEntry *entry;
    EDestinationStore *store;
    GtkTreeIter   iter;
    gint n, len;
    GtkTreeSelection *selection;

    entry = E_NAME_SELECTOR_ENTRY (list);
    store = e_name_selector_entry_peek_destination_store (entry);

    if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &iter, path))
        return;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list->priv->tree_view));
    len = e_destination_store_get_destination_count (store);
    n = GPOINTER_TO_INT (iter.user_data);

    e_destination_store_remove_destination_nth (store, n);

    /* If the last one is deleted select the last but one or the deleted +1 */
    if (n == len -1)
        n -= 1;

    /* We deleted the last entry */
    if (len == 1) {
        enl_popup_ungrab (list);
        if (list->priv->menu)
            gtk_menu_popdown (GTK_MENU (list->priv->menu));
        gtk_widget_hide (GTK_WIDGET (list->priv->popup));
        return;
    }

    iter.stamp = e_destination_store_get_stamp (store);
    iter.user_data = GINT_TO_POINTER (n);

    gtk_tree_selection_unselect_all (selection);
    gtk_tree_selection_select_iter (selection, &iter);

    gtk_tree_path_free (path);

    list->priv->rows = e_destination_store_get_destination_count (store);
    enl_popup_size (list);
}

static void
popup_activate_email (ENameSelectorEntry *name_selector_entry,
                      GtkWidget *menu_item)
{
    EDestination *destination;
    EContact     *contact;
    gint          email_num;

    destination = e_name_selector_entry_get_popup_destination (name_selector_entry);
    if (!destination)
        return;

    contact = e_destination_get_contact (destination);
    if (!contact)
        return;

    email_num = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "order"));
    e_destination_set_contact (destination, contact, email_num);
}

static void
popup_activate_list (EDestination *destination,
                     GtkWidget *item)
{
    gboolean status = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (item));

    e_destination_set_ignored (destination, !status);
}

static void
destination_set_list (GtkWidget *item,
                      EDestination *destination)
{
    EContact *contact;
    gboolean status = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (item));

    contact = e_destination_get_contact (destination);
    if (!contact)
        return;

    e_destination_set_ignored (destination, !status);
}

static void
destination_set_email (GtkWidget *item,
                       EDestination *destination)
{
    gint email_num;
    EContact *contact;

    if (!gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (item)))
        return;
    contact = e_destination_get_contact (destination);
    if (!contact)
        return;

    email_num = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (item), "order"));
    e_destination_set_contact (destination, contact, email_num);
}

typedef struct {
    ENameSelectorList *list;
    GtkTreePath *path;
}PopupDeleteRowInfo;

static void
popup_delete_row (GtkWidget *w,
                  PopupDeleteRowInfo *row_info)
{
    delete_row (row_info->path, row_info->list);
    g_free (row_info);
}

static void
menu_deactivate (GtkMenuShell *junk,
                 ENameSelectorList *list)
{
    enl_popup_grab (list, NULL);
}

static gboolean
enl_tree_button_press_event (GtkWidget *widget,
                             GdkEventButton *event,
                             ENameSelectorList *list)
{
    GtkWidget *menu;
    EDestination *destination;
    ENameSelectorEntry *entry;
    EDestinationStore *store;
    EContact     *contact;
    GtkWidget    *menu_item;
    GList        *email_list = NULL, *l;
    gint          i;
    gint          email_num, len;
    gchar         *delete_label;
    GSList       *group = NULL;
    gboolean      is_list;
    gboolean      show_menu = FALSE;
    GtkTreeSelection *selection;
    GtkTreeView *tree_view;
    GtkTreePath  *path;
    PopupDeleteRowInfo *row_info;
    GtkTreeIter   iter;

    entry = E_NAME_SELECTOR_ENTRY (list);
    tree_view = GTK_TREE_VIEW (list->priv->tree_view);
    store = e_name_selector_entry_peek_destination_store (entry);

    if (!gtk_widget_has_grab (GTK_WIDGET (list->priv->popup)))
        enl_popup_grab (list, (GdkEvent *) event);

    gtk_tree_view_get_dest_row_at_pos (
        tree_view, event->x, event->y, &path, NULL);
    selection = gtk_tree_view_get_selection (tree_view);
    if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &iter, path))
        return FALSE;

    gtk_tree_selection_unselect_all (selection);
    gtk_tree_selection_select_iter (selection, &iter);

    if (event->button != 3) {
        return FALSE;
    }

    destination = e_destination_store_get_destination (store, &iter);

    if (!destination)
        return FALSE;

    contact = e_destination_get_contact (destination);
    if (!contact)
        return FALSE;

    if (list->priv->menu) {
        gtk_menu_popdown (GTK_MENU (list->priv->menu));
    }
    menu = gtk_menu_new ();
    g_signal_connect (menu, "deactivate", G_CALLBACK (menu_deactivate), list);
    list->priv->menu = menu;
    gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, event->button, gtk_get_current_event_time ());

    email_num = e_destination_get_email_num (destination);

    /* Addresses */
    is_list = e_contact_get (contact, E_CONTACT_IS_LIST) ? TRUE : FALSE;
    if (is_list) {
        const GList *dests = e_destination_list_get_dests (destination);
        GList *iters;
        gint length = g_list_length ((GList *) dests);

        for (iters = (GList *) dests; iters; iters = iters->next) {
            EDestination *dest = (EDestination *) iters->data;
            const gchar *email = e_destination_get_email (dest);

            if (!email || *email == '\0')
                continue;

            if (length > 1) {
                menu_item = gtk_check_menu_item_new_with_label (email);
                g_signal_connect (
                    menu_item, "toggled",
                    G_CALLBACK (destination_set_list), dest);
            } else {
                menu_item = gtk_menu_item_new_with_label (email);
            }

            gtk_widget_show (menu_item);
            gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), menu_item);
            show_menu = TRUE;

            if (length > 1) {
                gtk_check_menu_item_set_active (
                    GTK_CHECK_MENU_ITEM (menu_item),
                    !e_destination_is_ignored (dest));
                g_signal_connect_swapped (
                    menu_item, "activate",
                    G_CALLBACK (popup_activate_list), dest);
            }
        }

    } else {
        email_list = e_contact_get (contact, E_CONTACT_EMAIL);
        len = g_list_length (email_list);

        for (l = email_list, i = 0; l; l = g_list_next (l), i++) {
            gchar *email = l->data;

            if (!email || *email == '\0')
                continue;

            if (len > 1) {
                menu_item = gtk_radio_menu_item_new_with_label (group, email);
                group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menu_item));
                g_signal_connect (
                    menu_item, "toggled",
                    G_CALLBACK (destination_set_email),
                    destination);
            } else {
                menu_item = gtk_menu_item_new_with_label (email);
            }

            gtk_widget_show (menu_item);
            gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), menu_item);
            show_menu = TRUE;
            g_object_set_data (G_OBJECT (menu_item), "order", GINT_TO_POINTER (i));

            if (i == email_num && len > 1) {
                gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item), TRUE);
                g_signal_connect_swapped (
                    menu_item, "activate",
                    G_CALLBACK (popup_activate_email),
                    entry);
            }
        }
        g_list_foreach (email_list, (GFunc) g_free, NULL);
        g_list_free (email_list);
    }

    /* Separator */

    if (show_menu) {
        menu_item = gtk_separator_menu_item_new ();
        gtk_widget_show (menu_item);
        gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), menu_item);
    }

    delete_label = g_strdup_printf (_("_Delete %s"), (gchar *) e_contact_get_const (contact, E_CONTACT_FILE_AS));
    menu_item = gtk_menu_item_new_with_mnemonic (delete_label);
    g_free (delete_label);
    gtk_widget_show (menu_item);
    gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), menu_item);

    row_info = g_new (PopupDeleteRowInfo, 1);
    row_info->list = list;
    row_info->path = path;

    g_signal_connect (
        menu_item, "activate",
        G_CALLBACK (popup_delete_row), row_info);

    return TRUE;

}

static gboolean
enl_tree_key_press_event (GtkWidget *w,
                          GdkEventKey *event,
                          ENameSelectorList *list)
{
    if (event->keyval == GDK_KEY_Escape) {
        enl_popup_ungrab (list);
        gtk_widget_hide ( GTK_WIDGET (list->priv->popup));
        return TRUE;
    } else if (event->keyval == GDK_KEY_Delete) {
        GtkTreeSelection *selection;
        GtkTreeView *tree_view;
        GList *paths;

        tree_view = GTK_TREE_VIEW (list->priv->tree_view);
        selection = gtk_tree_view_get_selection (tree_view);
        paths = gtk_tree_selection_get_selected_rows (selection, NULL);
        paths = g_list_reverse (paths);
        g_list_foreach (paths, (GFunc) delete_row, list);
        g_list_free (paths);
    } else if (event->keyval != GDK_KEY_Up && event->keyval != GDK_KEY_Down
           && event->keyval != GDK_KEY_Shift_R && event->keyval != GDK_KEY_Shift_L
           && event->keyval != GDK_KEY_Control_R && event->keyval != GDK_KEY_Control_L) {
        enl_popup_ungrab (list);
        gtk_widget_hide ( GTK_WIDGET (list->priv->popup));
        gtk_widget_event (GTK_WIDGET (list), (GdkEvent *) event);
        return TRUE;
    }

    return FALSE;
}

void
e_name_selector_list_expand_clicked (ENameSelectorList *list)
{
    ENameSelectorEntry *entry;
    EDestinationStore *store;

    entry = E_NAME_SELECTOR_ENTRY (list);
    store = e_name_selector_entry_peek_destination_store (entry);

    if (!gtk_widget_get_visible (GTK_WIDGET (list->priv->popup))) {
        enl_popup_position (list);
        gtk_widget_show_all (GTK_WIDGET (list->priv->popup));
        enl_popup_grab (list, NULL);
        list->priv->rows = e_destination_store_get_destination_count (store);
        enl_popup_size (list);
        enl_tree_select_node (list, 1);
    }
    else {
        enl_popup_ungrab (list);
        if (list->priv->menu)
            gtk_menu_popdown (GTK_MENU (list->priv->menu));
        gtk_widget_hide (GTK_WIDGET (list->priv->popup));
    }
}

static void
name_selector_list_realize (GtkWidget *widget)
{
    ENameSelectorList *list;
    ENameSelectorEntry *entry;
    EDestinationStore *store;

    /* Chain up to parent's realize() method. */
    GTK_WIDGET_CLASS (e_name_selector_list_parent_class)->realize (widget);

    list = E_NAME_SELECTOR_LIST (widget);
    entry = E_NAME_SELECTOR_ENTRY (widget);
    store = e_name_selector_entry_peek_destination_store (entry);

    gtk_tree_view_set_model (
        GTK_TREE_VIEW (list->priv->tree_view), GTK_TREE_MODEL (store));
}

static void
e_name_selector_list_class_init (ENameSelectorListClass *class)
{
    GtkWidgetClass *widget_class;

    g_type_class_add_private (class, sizeof (ENameSelectorListPrivate));

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->realize = name_selector_list_realize;
}

static void
e_name_selector_list_init (ENameSelectorList *list)
{
    GtkCellRenderer *renderer;
    GtkWidget *scroll, *popup_frame, *vgrid;
    GtkTreeSelection *selection;
    GtkTreeViewColumn *column;
    ENameSelectorEntry *entry;
    EDestinationStore *store;
    GtkEntryCompletion *completion;

    list->priv = E_NAME_SELECTOR_LIST_GET_PRIVATE (list);
    list->priv->menu = NULL;

    entry = E_NAME_SELECTOR_ENTRY (list);
    store = e_name_selector_entry_peek_destination_store (entry);

    list->priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
    gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (list->priv->tree_view), FALSE);
    gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (list->priv->tree_view), FALSE);

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list->priv->tree_view));
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
    gtk_tree_selection_unselect_all (selection);
    gtk_tree_view_set_enable_search (GTK_TREE_VIEW (list->priv->tree_view), FALSE);

    completion = gtk_entry_get_completion (GTK_ENTRY (list));
    gtk_entry_completion_set_inline_completion (completion, TRUE);
    gtk_entry_completion_set_popup_completion (completion, TRUE);

    renderer = gtk_cell_renderer_text_new ();
    column = gtk_tree_view_column_new_with_attributes ("Name", renderer, "text", E_DESTINATION_STORE_COLUMN_ADDRESS, NULL);
    gtk_tree_view_append_column (GTK_TREE_VIEW (list->priv->tree_view), column);
    gtk_tree_view_column_set_clickable (column, TRUE);

    scroll = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (
        GTK_SCROLLED_WINDOW (scroll),
        GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (
        GTK_SCROLLED_WINDOW (scroll), GTK_SHADOW_NONE);
    gtk_widget_set_size_request (
        gtk_scrolled_window_get_vscrollbar (
        GTK_SCROLLED_WINDOW (scroll)), -1, 0);
    gtk_widget_set_vexpand (scroll, TRUE);
    gtk_widget_set_valign (scroll, GTK_ALIGN_FILL);

    list->priv->popup =  GTK_WINDOW (gtk_window_new (GTK_WINDOW_POPUP));
    gtk_window_set_resizable (GTK_WINDOW (list->priv->popup), FALSE);

    popup_frame = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type (
        GTK_FRAME (popup_frame), GTK_SHADOW_ETCHED_IN);

    gtk_container_add (GTK_CONTAINER (list->priv->popup), popup_frame);

    vgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_VERTICAL,
        "column-homogeneous", FALSE,
        "row-spacing", 0,
        NULL);
    gtk_container_add (GTK_CONTAINER (popup_frame), vgrid);

    gtk_container_add (GTK_CONTAINER (scroll), list->priv->tree_view);
    gtk_container_add (GTK_CONTAINER (vgrid), scroll);

    g_signal_connect_after (
        GTK_WIDGET (list), "focus-in-event",
        G_CALLBACK (enl_entry_focus_in), NULL);
    g_signal_connect (
        GTK_WIDGET (list), "focus-out-event",
        G_CALLBACK (enl_entry_focus_out), NULL);
    g_signal_connect (
        GTK_WIDGET (list), "key-press-event",
        G_CALLBACK (enl_entry_key_press_event), NULL);

    g_signal_connect_after (
        list->priv->tree_view, "key-press-event",
        G_CALLBACK (enl_tree_key_press_event), list);
    g_signal_connect (
        list->priv->tree_view, "button-press-event",
        G_CALLBACK (enl_tree_button_press_event), list);

    g_signal_connect (
        list->priv->popup, "button-press-event",
        G_CALLBACK (enl_popup_button_press), list);
    g_signal_connect (
        list->priv->popup, "focus-out-event",
        G_CALLBACK (enl_popup_focus_out), list);
    g_signal_connect (
        list->priv->popup, "enter-notify-event",
        G_CALLBACK (enl_popup_enter_notify), list);

}

GtkWidget *
e_name_selector_list_new (EClientCache *client_cache)
{
    g_return_val_if_fail (E_IS_CLIENT_CACHE (client_cache), NULL);

    return g_object_new (
        E_TYPE_NAME_SELECTOR_LIST,
        "client-cache", client_cache, NULL);
}