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path: root/e-util/e-name-selector-dialog.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/* e-name-selector-dialog.c - Dialog that lets user pick EDestinations.
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 * 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.
 *
 * 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * Author: Hans Petter Jansson <hpj@novell.com>
 */

#ifdef GTK_DISABLE_DEPRECATED
#undef GTK_DISABLE_DEPRECATED
#endif

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

#include <libebook/libebook.h>
#include <libebackend/libebackend.h>

#include "e-client-combo-box.h"
#include "e-destination-store.h"
#include "e-contact-store.h"
#include "e-name-selector-dialog.h"
#include "e-name-selector-entry.h"

#define E_NAME_SELECTOR_DIALOG_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_NAME_SELECTOR_DIALOG, ENameSelectorDialogPrivate))

typedef struct {
    gchar        *name;

    GtkGrid      *section_grid;
    GtkLabel     *label;
    GtkButton    *transfer_button;
    GtkButton    *remove_button;
    GtkTreeView  *destination_view;
}
Section;

typedef struct {
    GtkTreeView *view;
    GtkButton   *button;
    ENameSelectorDialog *dlg_ptr;
} SelData;

struct _ENameSelectorDialogPrivate {
    EClientCache *client_cache;
    ENameSelectorModel *name_selector_model;
    GtkTreeModelSort *contact_sort;
    GCancellable *cancellable;

    GtkWidget *client_combo;
    GtkTreeView *contact_view;
    GtkLabel *status_label;
    GtkGrid *destination_vgrid;
    GtkEntry *search_entry;
    GtkSizeGroup *button_size_group;
    GtkWidget *category_combobox;
    GtkWidget *contact_window;

    GArray *sections;

    guint destination_index;
    GSList *user_query_fields;
    GtkSizeGroup *dest_label_size_group;
};

enum {
    PROP_0,
    PROP_CLIENT_CACHE
};

static void     search_changed                (ENameSelectorDialog *name_selector_dialog);
static void     source_changed                (ENameSelectorDialog *name_selector_dialog,
                           EClientComboBox *combo_box);
static void     transfer_button_clicked       (ENameSelectorDialog *name_selector_dialog, GtkButton *transfer_button);
static void     contact_selection_changed     (ENameSelectorDialog *name_selector_dialog);
static void     setup_name_selector_model     (ENameSelectorDialog *name_selector_dialog);
static void     shutdown_name_selector_model  (ENameSelectorDialog *name_selector_dialog);
static void     contact_activated             (ENameSelectorDialog *name_selector_dialog, GtkTreePath *path);
static void     destination_activated         (ENameSelectorDialog *name_selector_dialog, GtkTreePath *path,
                           GtkTreeViewColumn *column, GtkTreeView *tree_view);
static gboolean destination_key_press         (ENameSelectorDialog *name_selector_dialog, GdkEventKey *event, GtkTreeView *tree_view);
static void remove_button_clicked (GtkButton *button, SelData *data);
static void     remove_books                  (ENameSelectorDialog *name_selector_dialog);
static void     contact_column_formatter      (GtkTreeViewColumn *column, GtkCellRenderer *cell,
                           GtkTreeModel *model, GtkTreeIter *iter,
                           ENameSelectorDialog *name_selector_dialog);
static void     destination_column_formatter  (GtkTreeViewColumn *column, GtkCellRenderer *cell,
                           GtkTreeModel *model, GtkTreeIter *iter,
                           ENameSelectorDialog *name_selector_dialog);

/* ------------------ *
 * Class/object setup *
 * ------------------ */

G_DEFINE_TYPE_WITH_CODE (
    ENameSelectorDialog,
    e_name_selector_dialog,
    GTK_TYPE_DIALOG,
    G_IMPLEMENT_INTERFACE (
        E_TYPE_EXTENSIBLE, NULL))

static void
name_selector_dialog_populate_categories (ENameSelectorDialog *name_selector_dialog)
{
    GtkWidget *combo_box;
    GList *category_list, *iter;

    /* "Any Category" is preloaded. */
    combo_box = name_selector_dialog->priv->category_combobox;
    if (gtk_combo_box_get_active (GTK_COMBO_BOX (combo_box)) == -1)
        gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), 0);

    /* Categories are already sorted. */
    category_list = e_categories_dup_list ();
    for (iter = category_list; iter != NULL; iter = iter->next) {
        /* Only add user-visible categories. */
        if (!e_categories_is_searchable (iter->data))
            continue;

        gtk_combo_box_text_append_text (
            GTK_COMBO_BOX_TEXT (combo_box), iter->data);
    }

    g_list_free_full (category_list, g_free);

    g_signal_connect_swapped (
        combo_box, "changed",
        G_CALLBACK (search_changed), name_selector_dialog);
}

static void
name_selector_dialog_set_client_cache (ENameSelectorDialog *name_selector_dialog,
                                       EClientCache *client_cache)
{
    g_return_if_fail (E_IS_CLIENT_CACHE (client_cache));
    g_return_if_fail (name_selector_dialog->priv->client_cache == NULL);

    name_selector_dialog->priv->client_cache = g_object_ref (client_cache);
}

static void
name_selector_dialog_set_property (GObject *object,
                                   guint property_id,
                                   const GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_CLIENT_CACHE:
            name_selector_dialog_set_client_cache (
                E_NAME_SELECTOR_DIALOG (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
name_selector_dialog_get_property (GObject *object,
                                   guint property_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_CLIENT_CACHE:
            g_value_take_object (
                value,
                e_name_selector_dialog_ref_client_cache (
                E_NAME_SELECTOR_DIALOG (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
name_selector_dialog_dispose (GObject *object)
{
    ENameSelectorDialogPrivate *priv;

    priv = E_NAME_SELECTOR_DIALOG_GET_PRIVATE (object);

    remove_books (E_NAME_SELECTOR_DIALOG (object));
    shutdown_name_selector_model (E_NAME_SELECTOR_DIALOG (object));

    g_clear_object (&priv->client_cache);

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (e_name_selector_dialog_parent_class)->dispose (object);
}

static void
name_selector_dialog_finalize (GObject *object)
{
    ENameSelectorDialogPrivate *priv;

    priv = E_NAME_SELECTOR_DIALOG_GET_PRIVATE (object);

    g_slist_foreach (priv->user_query_fields, (GFunc) g_free, NULL);
    g_slist_free (priv->user_query_fields);

    g_array_free (priv->sections, TRUE);
    g_object_unref (priv->button_size_group);
    g_object_unref (priv->dest_label_size_group);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (e_name_selector_dialog_parent_class)->finalize (object);
}

static void
name_selector_dialog_constructed (GObject *object)
{
    ENameSelectorDialogPrivate *priv;
    GtkTreeSelection  *contact_selection;
    GtkTreeViewColumn *column;
    GtkCellRenderer   *cell_renderer;
    GtkTreeSelection  *selection;
    ESourceRegistry *registry;
    ESource *source;
    gchar *tmp_str;
    GtkWidget *name_selector_grid;
    GtkWidget *show_contacts_label;
    GtkWidget *hgrid;
    GtkWidget *label;
    GtkWidget *show_contacts_grid;
    GtkWidget *AddressBookLabel;
    GtkWidget *label_category;
    GtkWidget *search;
    AtkObject *atko;
    GtkWidget *label_search;
    GtkWidget *source_menu_hgrid;
    GtkWidget *combobox_category;
    GtkWidget *label_contacts;
    GtkWidget *scrolledwindow0;
    GtkWidget *scrolledwindow1;
    AtkRelationSet *tmp_relation_set;
    AtkRelationType tmp_relationship;
    AtkRelation *tmp_relation;
    AtkObject *scrolledwindow1_relation_targets[1];
    GtkWidget *source_tree_view;
    GtkWidget *destination_vgrid;
    GtkWidget *status_message;
    GtkWidget *client_combo;
    const gchar *extension_name;

    priv = E_NAME_SELECTOR_DIALOG_GET_PRIVATE (object);

    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (e_name_selector_dialog_parent_class)->constructed (object);

    name_selector_grid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_VERTICAL,
        "column-homogeneous", FALSE,
        "row-spacing", 6,
        NULL);
    gtk_widget_show (name_selector_grid);
    gtk_container_set_border_width (GTK_CONTAINER (name_selector_grid), 0);

    tmp_str = g_strconcat ("<b>", _("Show Contacts"), "</b>", NULL);
    show_contacts_label = gtk_label_new (tmp_str);
    gtk_widget_show (show_contacts_label);
    gtk_container_add (GTK_CONTAINER (name_selector_grid), show_contacts_label);
    gtk_label_set_use_markup (GTK_LABEL (show_contacts_label), TRUE);
    gtk_misc_set_alignment (GTK_MISC (show_contacts_label), 0, 0.5);
    g_free (tmp_str);

    hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 12,
        NULL);
    gtk_widget_show (hgrid);
    gtk_container_add (GTK_CONTAINER (name_selector_grid), hgrid);

    label = gtk_label_new ("");
    gtk_widget_show (label);
    gtk_container_add (GTK_CONTAINER (hgrid), label);

    show_contacts_grid = gtk_grid_new ();
    gtk_widget_show (show_contacts_grid);
    gtk_container_add (GTK_CONTAINER (hgrid), show_contacts_grid);
    g_object_set (
        G_OBJECT (show_contacts_grid),
        "column-spacing", 12,
        "row-spacing", 6,
        "hexpand", TRUE,
        "halign", GTK_ALIGN_FILL,
        NULL);

    AddressBookLabel = gtk_label_new_with_mnemonic (_("Address B_ook:"));
    gtk_widget_show (AddressBookLabel);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), AddressBookLabel, 0, 0, 1, 1);
    gtk_widget_set_halign (AddressBookLabel, GTK_ALIGN_FILL);
    gtk_label_set_justify (GTK_LABEL (AddressBookLabel), GTK_JUSTIFY_CENTER);
    gtk_misc_set_alignment (GTK_MISC (AddressBookLabel), 0, 0.5);

    label_category = gtk_label_new_with_mnemonic (_("Cat_egory:"));
    gtk_widget_show (label_category);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), label_category, 0, 1, 1, 1);
    gtk_widget_set_halign (label_category, GTK_ALIGN_FILL);
    gtk_label_set_justify (GTK_LABEL (label_category), GTK_JUSTIFY_CENTER);
    gtk_misc_set_alignment (GTK_MISC (label_category), 0, 0.5);

    hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 12,
        "hexpand", TRUE,
        "halign", GTK_ALIGN_FILL,
        NULL);
    gtk_widget_show (hgrid);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), hgrid, 1, 2, 1, 1);

    search = gtk_entry_new ();
    gtk_widget_show (search);
    gtk_widget_set_hexpand (search, TRUE);
    gtk_widget_set_halign (search, GTK_ALIGN_FILL);
    gtk_container_add (GTK_CONTAINER (hgrid), search);

    label_search = gtk_label_new_with_mnemonic (_("_Search:"));
    gtk_widget_show (label_search);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), label_search, 0, 2, 1, 1);
    gtk_widget_set_halign (label_search, GTK_ALIGN_FILL);
    gtk_misc_set_alignment (GTK_MISC (label_search), 0, 0.5);

    source_menu_hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 0,
        "halign", GTK_ALIGN_FILL,
        "valign", GTK_ALIGN_FILL,
        NULL);
    gtk_widget_show (source_menu_hgrid);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), source_menu_hgrid, 1, 0, 1, 1);

    combobox_category = gtk_combo_box_text_new ();
    gtk_widget_show (combobox_category);
    g_object_set (
        G_OBJECT (combobox_category),
        "halign", GTK_ALIGN_FILL,
        "valign", GTK_ALIGN_FILL,
        NULL);
    gtk_grid_attach (GTK_GRID (show_contacts_grid), combobox_category, 1, 1, 1, 1);
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (combobox_category), _("Any Category"));

    tmp_str = g_strconcat ("<b>", _("Co_ntacts"), "</b>", NULL);
    label_contacts = gtk_label_new_with_mnemonic (tmp_str);
    gtk_widget_show (label_contacts);
    gtk_container_add (GTK_CONTAINER (name_selector_grid), label_contacts);
    gtk_label_set_use_markup (GTK_LABEL (label_contacts), TRUE);
    gtk_misc_set_alignment (GTK_MISC (label_contacts), 0, 0.5);
    g_free (tmp_str);

    scrolledwindow0 = gtk_scrolled_window_new (NULL, NULL);
    priv->contact_window = scrolledwindow0;
    gtk_widget_show (scrolledwindow0);
    gtk_widget_set_vexpand (scrolledwindow0, TRUE);
    gtk_widget_set_valign (scrolledwindow0, GTK_ALIGN_FILL);
    gtk_container_add (GTK_CONTAINER (name_selector_grid), scrolledwindow0);
    gtk_scrolled_window_set_policy (
        GTK_SCROLLED_WINDOW (scrolledwindow0),
        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

    hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 12,
        NULL);
    gtk_widget_show (hgrid);
    gtk_scrolled_window_add_with_viewport (
        GTK_SCROLLED_WINDOW (scrolledwindow0), hgrid);

    label = gtk_label_new ("");
    gtk_widget_show (label);
    gtk_container_add (GTK_CONTAINER (hgrid), label);

    scrolledwindow1 = gtk_scrolled_window_new (NULL, NULL);
    gtk_widget_show (scrolledwindow1);
    gtk_container_add (GTK_CONTAINER (hgrid), scrolledwindow1);
    gtk_widget_set_hexpand (scrolledwindow1, TRUE);
    gtk_widget_set_halign (scrolledwindow1, GTK_ALIGN_FILL);
    gtk_scrolled_window_set_policy (
        GTK_SCROLLED_WINDOW (scrolledwindow1),
        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (
        GTK_SCROLLED_WINDOW (scrolledwindow1), GTK_SHADOW_IN);

    source_tree_view = gtk_tree_view_new ();
    gtk_widget_show (source_tree_view);
    gtk_container_add (GTK_CONTAINER (scrolledwindow1), source_tree_view);
    gtk_tree_view_set_headers_visible (
        GTK_TREE_VIEW (source_tree_view), FALSE);
    gtk_tree_view_set_enable_search (
        GTK_TREE_VIEW (source_tree_view), FALSE);

    destination_vgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_VERTICAL,
        "column-homogeneous", TRUE,
        "row-spacing", 6,
        "hexpand", TRUE,
        "halign", GTK_ALIGN_FILL,
        "vexpand", TRUE,
        "valign", GTK_ALIGN_FILL,
        NULL);
    gtk_widget_show (destination_vgrid);
    gtk_container_add (GTK_CONTAINER (hgrid), destination_vgrid);

    status_message = gtk_label_new ("");
    gtk_widget_show (status_message);
    gtk_container_add (GTK_CONTAINER (name_selector_grid), status_message);
    gtk_label_set_use_markup (GTK_LABEL (status_message), TRUE);
    gtk_misc_set_alignment (GTK_MISC (status_message), 0, 0.5);
    gtk_misc_set_padding (GTK_MISC (status_message), 0, 3);

    gtk_label_set_mnemonic_widget (GTK_LABEL (AddressBookLabel), source_menu_hgrid);
    gtk_label_set_mnemonic_widget (GTK_LABEL (label_category), combobox_category);
    gtk_label_set_mnemonic_widget (GTK_LABEL (label_search), search);
    gtk_label_set_mnemonic_widget (GTK_LABEL (label_contacts), source_tree_view);

    atko = gtk_widget_get_accessible (search);
    atk_object_set_name (atko, _("Search"));

    atko = gtk_widget_get_accessible (source_menu_hgrid);
    atk_object_set_name (atko, _("Address Book"));

    atko = gtk_widget_get_accessible (scrolledwindow1);
    atk_object_set_name (atko, _("Contacts"));
    tmp_relation_set = atk_object_ref_relation_set (atko);
    scrolledwindow1_relation_targets[0] = gtk_widget_get_accessible (label_contacts);
    tmp_relationship = atk_relation_type_for_name ("labelled-by");
    tmp_relation = atk_relation_new (scrolledwindow1_relation_targets, 1, tmp_relationship);
    atk_relation_set_add (tmp_relation_set, tmp_relation);
    g_object_unref (G_OBJECT (tmp_relation));
    g_object_unref (G_OBJECT (tmp_relation_set));

    gtk_box_pack_start (
        GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (object))),
        name_selector_grid, TRUE, TRUE, 0);

    /* Store pointers to relevant widgets */

    priv->contact_view = GTK_TREE_VIEW (source_tree_view);
    priv->status_label = GTK_LABEL (status_message);
    priv->destination_vgrid = GTK_GRID (destination_vgrid);
    priv->search_entry = GTK_ENTRY (search);
    priv->category_combobox = combobox_category;

    /* Create size group for transfer buttons */

    priv->button_size_group =
        gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);

    /* Create size group for destination labels */

    priv->dest_label_size_group =
        gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);

    /* Set up contacts view */

    column = gtk_tree_view_column_new ();
    cell_renderer = GTK_CELL_RENDERER (gtk_cell_renderer_text_new ());
    gtk_tree_view_column_pack_start (column, cell_renderer, TRUE);
    gtk_tree_view_column_set_cell_data_func (
        column, cell_renderer, (GtkTreeCellDataFunc)
        contact_column_formatter, object, NULL);

    selection = gtk_tree_view_get_selection (priv->contact_view);
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
    gtk_tree_view_append_column (priv->contact_view, column);
    g_signal_connect_swapped (
        priv->contact_view, "row-activated",
        G_CALLBACK (contact_activated), object);

    /* Listen for changes to the contact selection */

    contact_selection = gtk_tree_view_get_selection (priv->contact_view);
    g_signal_connect_swapped (
        contact_selection, "changed",
        G_CALLBACK (contact_selection_changed), object);

    /* Set up our data structures */

    priv->name_selector_model = e_name_selector_model_new ();
    priv->sections = g_array_new (FALSE, FALSE, sizeof (Section));

    setup_name_selector_model (E_NAME_SELECTOR_DIALOG (object));

    /* Create source menu */

    extension_name = E_SOURCE_EXTENSION_ADDRESS_BOOK;
    client_combo = e_client_combo_box_new (
        priv->client_cache, extension_name);
    priv->client_combo = client_combo;
    g_signal_connect_swapped (
        client_combo, "changed",
        G_CALLBACK (source_changed), object);

    gtk_label_set_mnemonic_widget (
        GTK_LABEL (AddressBookLabel), client_combo);
    gtk_widget_show (client_combo);
    gtk_widget_set_hexpand (client_combo, TRUE);
    gtk_widget_set_halign (client_combo, GTK_ALIGN_FILL);
    gtk_container_add (GTK_CONTAINER (source_menu_hgrid), client_combo);

    name_selector_dialog_populate_categories (
        E_NAME_SELECTOR_DIALOG (object));

    /* Set up search-as-you-type signal */

    g_signal_connect_swapped (
        search, "changed",
        G_CALLBACK (search_changed), object);

    /* Display initial source */

    registry = e_client_cache_ref_registry (priv->client_cache);
    source = e_source_registry_ref_default_address_book (registry);
    e_source_combo_box_set_active (
        E_SOURCE_COMBO_BOX (client_combo), source);
    g_object_unref (source);
    g_object_unref (registry);

    /* Set up dialog defaults */

    gtk_dialog_add_buttons (
        GTK_DIALOG (object),
        _("_Close"), GTK_RESPONSE_CLOSE,
        NULL);

    /* Try to figure out a sane default size for the dialog. We used to hard
     * code this to 512 so keep using 512 if the screen is big enough,
     * otherwise use -1 (use as little as possible, use the
     * GtkScrolledWindow's scrollbars).
     *
     * This should allow scrolling on tiny netbook resolutions and let
     * others see as much of the dialog as possible.
     *
     * 600 pixels seems to be a good lower bound resolution to allow room
     * above or below for other UI (window manager's?)
     */
    gtk_window_set_default_size (
        GTK_WINDOW (object), 700,
        gdk_screen_height () >= 600 ? 512 : -1);

    gtk_dialog_set_default_response (
        GTK_DIALOG (object), GTK_RESPONSE_CLOSE);
    gtk_window_set_modal (GTK_WINDOW (object), TRUE);
    gtk_window_set_resizable (GTK_WINDOW (object), TRUE);
    gtk_container_set_border_width (GTK_CONTAINER (object), 4);
    gtk_window_set_title (
        GTK_WINDOW (object),
        _("Select Contacts from Address Book"));
    gtk_widget_grab_focus (search);

    e_extensible_load_extensions (E_EXTENSIBLE (object));
}

static void
name_selector_dialog_realize (GtkWidget *widget)
{
    ENameSelectorDialog *name_selector_dialog;
    GtkWidget *client_combo;

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

    name_selector_dialog = E_NAME_SELECTOR_DIALOG (widget);
    client_combo = name_selector_dialog->priv->client_combo;

    source_changed (
        name_selector_dialog,
        E_CLIENT_COMBO_BOX (client_combo));
}

static void
e_name_selector_dialog_class_init (ENameSelectorDialogClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;

    g_type_class_add_private (class, sizeof (ENameSelectorDialogPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = name_selector_dialog_set_property;
    object_class->get_property = name_selector_dialog_get_property;
    object_class->dispose = name_selector_dialog_dispose;
    object_class->finalize = name_selector_dialog_finalize;
    object_class->constructed = name_selector_dialog_constructed;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->realize = name_selector_dialog_realize;

    /**
     * ENameSelectorDialog:client-cache:
     *
     * Cache of shared #EClient instances.
     **/
    g_object_class_install_property (
        object_class,
        PROP_CLIENT_CACHE,
        g_param_spec_object (
            "client-cache",
            "Client Cache",
            "Cache of shared EClient instances",
            E_TYPE_CLIENT_CACHE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY |
            G_PARAM_STATIC_STRINGS));
}

static void
e_name_selector_dialog_init (ENameSelectorDialog *name_selector_dialog)
{
    name_selector_dialog->priv =
        E_NAME_SELECTOR_DIALOG_GET_PRIVATE (name_selector_dialog);
}

/**
 * e_name_selector_dialog_new:
 * @client_cache: an #EClientCache
 *
 * Creates a new #ENameSelectorDialog.
 *
 * Returns: A new #ENameSelectorDialog.
 **/
ENameSelectorDialog *
e_name_selector_dialog_new (EClientCache *client_cache)
{
    g_return_val_if_fail (E_IS_CLIENT_CACHE (client_cache), NULL);

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

/**
 * e_name_selector_dialog_ref_client_cache:
 * @name_selector_dialog: an #ENameSelectorDialog
 *
 * Returns the #EClientCache passed to e_name_selector_dialog_new().
 *
 * The returned #EClientCache is referenced for thread-safety and must be
 * unreferenced with g_object_unref() when finished with it.
 *
 * Returns: an #EClientCache
 *
 * Since: 3.8
 **/
EClientCache *
e_name_selector_dialog_ref_client_cache (ENameSelectorDialog *name_selector_dialog)
{
    g_return_val_if_fail (
        E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog), NULL);

    return g_object_ref (name_selector_dialog->priv->client_cache);
}

/* --------- *
 * Utilities *
 * --------- */

static gchar *
escape_sexp_string (const gchar *string)
{
    GString *gstring;
    gchar   *encoded_string;

    gstring = g_string_new ("");
    e_sexp_encode_string (gstring, string);

    encoded_string = gstring->str;
    g_string_free (gstring, FALSE);

    return encoded_string;
}

static void
sort_iter_to_contact_store_iter (ENameSelectorDialog *name_selector_dialog,
                                 GtkTreeIter *iter,
                                 gint *email_n)
{
    ETreeModelGenerator *contact_filter;
    GtkTreeIter          child_iter;
    gint                 email_n_local;

    contact_filter = e_name_selector_model_peek_contact_filter (
        name_selector_dialog->priv->name_selector_model);

    gtk_tree_model_sort_convert_iter_to_child_iter (
        name_selector_dialog->priv->contact_sort, &child_iter, iter);
    e_tree_model_generator_convert_iter_to_child_iter (
        contact_filter, iter, &email_n_local, &child_iter);

    if (email_n)
        *email_n = email_n_local;
}

static void
add_destination (ENameSelectorModel *name_selector_model,
                 EDestinationStore *destination_store,
                 EContact *contact,
                 gint email_n,
                 EBookClient *client)
{
    EDestination *destination;
    GList *email_list, *nth;

    /* get the correct index of an email in the contact */
    email_list = e_name_selector_model_get_contact_emails_without_used (name_selector_model, contact, FALSE);
    while (nth = g_list_nth (email_list, email_n), nth && nth->data == NULL) {
        email_n++;
    }
    e_name_selector_model_free_emails_list (email_list);

    /* Transfer (actually, copy into a destination and let the model filter out the
     * source automatically) */

    destination = e_destination_new ();
    e_destination_set_contact (destination, contact, email_n);
    if (client)
        e_destination_set_client (destination, client);
    e_destination_store_append_destination (destination_store, destination);
    g_object_unref (destination);
}

static void
remove_books (ENameSelectorDialog *name_selector_dialog)
{
    EContactStore *contact_store;
    GSList        *clients, *l;

    if (!name_selector_dialog->priv->name_selector_model)
        return;

    contact_store = e_name_selector_model_peek_contact_store (
        name_selector_dialog->priv->name_selector_model);

    /* Remove books (should be just one) being viewed */
    clients = e_contact_store_get_clients (contact_store);
    for (l = clients; l; l = g_slist_next (l)) {
        EBookClient *client = l->data;
        e_contact_store_remove_client (contact_store, client);
    }
    g_slist_free (clients);

    /* See if we have a book pending; stop loading it if so */
    if (name_selector_dialog->priv->cancellable != NULL) {
        g_cancellable_cancel (name_selector_dialog->priv->cancellable);
        g_object_unref (name_selector_dialog->priv->cancellable);
        name_selector_dialog->priv->cancellable = NULL;
    }
}

/* ------------------ *
 * Section management *
 * ------------------ */

static gint
find_section_by_transfer_button (ENameSelectorDialog *name_selector_dialog,
                                 GtkButton *transfer_button)
{
    gint i;

    for (i = 0; i < name_selector_dialog->priv->sections->len; i++) {
        Section *section = &g_array_index (
            name_selector_dialog->priv->sections, Section, i);

        if (section->transfer_button == transfer_button)
            return i;
    }

    return -1;
}

static gint
find_section_by_tree_view (ENameSelectorDialog *name_selector_dialog,
                           GtkTreeView *tree_view)
{
    gint i;

    for (i = 0; i < name_selector_dialog->priv->sections->len; i++) {
        Section *section = &g_array_index (
            name_selector_dialog->priv->sections, Section, i);

        if (section->destination_view == tree_view)
            return i;
    }

    return -1;
}

static gint
find_section_by_name (ENameSelectorDialog *name_selector_dialog,
                      const gchar *name)
{
    gint i;

    for (i = 0; i < name_selector_dialog->priv->sections->len; i++) {
        Section *section = &g_array_index (
            name_selector_dialog->priv->sections, Section, i);

        if (!strcmp (name, section->name))
            return i;
    }

    return -1;
}

static void
selection_changed (GtkTreeSelection *selection,
                   SelData *data)
{
    GtkTreeSelection *contact_selection;
    gboolean          have_selection = FALSE;

    contact_selection = gtk_tree_view_get_selection (data->view);
    if (gtk_tree_selection_count_selected_rows (contact_selection) > 0)
        have_selection = TRUE;
    gtk_widget_set_sensitive (GTK_WIDGET (data->button), have_selection);
}

static GtkTreeView *
make_tree_view_for_section (ENameSelectorDialog *name_selector_dialog,
                            EDestinationStore *destination_store)
{
    GtkTreeView *tree_view;
    GtkTreeViewColumn *column;
    GtkCellRenderer   *cell_renderer;

    tree_view = GTK_TREE_VIEW (gtk_tree_view_new ());

    column = gtk_tree_view_column_new ();
    cell_renderer = GTK_CELL_RENDERER (gtk_cell_renderer_text_new ());
    gtk_tree_view_column_pack_start (column, cell_renderer, TRUE);
    gtk_tree_view_column_set_cell_data_func (
        column, cell_renderer,
        (GtkTreeCellDataFunc) destination_column_formatter,
        name_selector_dialog, NULL);
    gtk_tree_view_append_column (tree_view, column);
    gtk_tree_view_set_headers_visible (tree_view, FALSE);
    gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (destination_store));

    return tree_view;
}

static void
setup_section_button (ENameSelectorDialog *name_selector_dialog,
                      GtkButton *button,
                      double halign,
                      const gchar *label_text,
                      const gchar *icon_name,
                      gboolean icon_before_label)
{
    GtkWidget *alignment;
    GtkWidget *hgrid;
    GtkWidget *label;
    GtkWidget *image;

    gtk_size_group_add_widget (
        name_selector_dialog->priv->button_size_group,
        GTK_WIDGET (button));

    alignment = gtk_alignment_new (halign, 0.5, 0.0, 0.0);
    gtk_container_add (GTK_CONTAINER (button), GTK_WIDGET (alignment));

    hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 2,
        NULL);
    gtk_widget_show (hgrid);
    gtk_container_add (GTK_CONTAINER (alignment), hgrid);

    label = gtk_label_new_with_mnemonic (label_text);
    gtk_widget_show (label);

    image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_BUTTON);
    gtk_widget_show (image);

    if (icon_before_label) {
        gtk_container_add (GTK_CONTAINER (hgrid), image);
        gtk_container_add (GTK_CONTAINER (hgrid), label);
    } else {
        gtk_container_add (GTK_CONTAINER (hgrid), label);
        gtk_container_add (GTK_CONTAINER (hgrid), image);
    }
}

static gint
add_section (ENameSelectorDialog *name_selector_dialog,
             const gchar *name,
             const gchar *pretty_name,
             EDestinationStore *destination_store)
{
    ENameSelectorDialogPrivate *priv;
    Section            section;
    GtkWidget     *vgrid;
    GtkWidget     *alignment;
    GtkWidget     *scrollwin;
    SelData       *data;
    GtkTreeSelection  *selection;
    gchar         *text;
    GtkWidget         *hgrid;

    g_assert (name != NULL);
    g_assert (pretty_name != NULL);
    g_assert (E_IS_DESTINATION_STORE (destination_store));

    priv = E_NAME_SELECTOR_DIALOG_GET_PRIVATE (name_selector_dialog);

    memset (&section, 0, sizeof (Section));

    section.name = g_strdup (name);
    section.section_grid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 12,
        "vexpand", TRUE,
        "valign", GTK_ALIGN_FILL,
        NULL);
    section.label = GTK_LABEL (gtk_label_new_with_mnemonic (pretty_name));
    section.transfer_button = GTK_BUTTON (gtk_button_new ());
    section.remove_button = GTK_BUTTON (gtk_button_new ());
    section.destination_view = make_tree_view_for_section (name_selector_dialog, destination_store);

    gtk_label_set_mnemonic_widget (GTK_LABEL (section.label), GTK_WIDGET (section.destination_view));

    if (pango_parse_markup (pretty_name, -1, '_', NULL,
                &text, NULL, NULL))  {
        atk_object_set_name (gtk_widget_get_accessible (
                    GTK_WIDGET (section.destination_view)), text);
        g_free (text);
    }

    /* Set up transfer button */
    g_signal_connect_swapped (
        section.transfer_button, "clicked",
        G_CALLBACK (transfer_button_clicked), name_selector_dialog);

    /*data for the remove callback*/
    data = g_malloc0 (sizeof (SelData));
    data->view = section.destination_view;
    data->dlg_ptr = name_selector_dialog;

    /*Associate to an object destroy so that it gets freed*/
    g_object_set_data_full ((GObject *) section.destination_view, "sel-remove-data", data, g_free);

    g_signal_connect (
        section.remove_button, "clicked",
        G_CALLBACK (remove_button_clicked), data);

    /* Alignment and vgrid for the add/remove buttons */

    alignment = gtk_alignment_new (0.5, 0.0, 0.0, 0.0);
    gtk_container_add (GTK_CONTAINER (section.section_grid), alignment);

    vgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_VERTICAL,
        "column-homogeneous", TRUE,
        "row-spacing", 6,
        NULL);

    gtk_container_add (GTK_CONTAINER (alignment), vgrid);

    /* "Add" button */
    gtk_container_add (GTK_CONTAINER (vgrid), GTK_WIDGET (section.transfer_button));
    setup_section_button (name_selector_dialog, section.transfer_button, 0.7, _("_Add"), "go-next", FALSE);

    /* "Remove" button */
    gtk_container_add (GTK_CONTAINER (vgrid), GTK_WIDGET (section.remove_button));
    setup_section_button (name_selector_dialog, section.remove_button, 0.5, _("_Remove"), "go-previous", TRUE);
    gtk_widget_set_sensitive (GTK_WIDGET (section.remove_button), FALSE);

    /* hgrid for label and scrolled window. This is a separate hgrid, instead
     * of just using the section.section_grid directly, as it has a different
     * spacing.
     */

    hgrid = g_object_new (
        GTK_TYPE_GRID,
        "orientation", GTK_ORIENTATION_HORIZONTAL,
        "row-homogeneous", FALSE,
        "column-spacing", 6,
        "vexpand", TRUE,
        "valign", GTK_ALIGN_FILL,
        NULL);
    gtk_container_add (GTK_CONTAINER (section.section_grid), hgrid);

    /* Title label */

    gtk_size_group_add_widget (priv->dest_label_size_group, GTK_WIDGET (section.label));

    gtk_misc_set_alignment (GTK_MISC (section.label), 0.0, 0.0);
    gtk_container_add (GTK_CONTAINER (hgrid), GTK_WIDGET (section.label));

    /* Treeview in a scrolled window */
    scrollwin = gtk_scrolled_window_new (NULL, NULL);
    gtk_container_add (GTK_CONTAINER (hgrid), scrollwin);
    gtk_widget_set_hexpand (scrollwin, TRUE);
    gtk_widget_set_halign (scrollwin, GTK_ALIGN_FILL);
    gtk_widget_set_vexpand (scrollwin, TRUE);
    gtk_widget_set_valign (scrollwin, GTK_ALIGN_FILL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrollwin), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrollwin), GTK_SHADOW_IN);
    gtk_container_add (GTK_CONTAINER (scrollwin), GTK_WIDGET (section.destination_view));

    /*data for 'changed' callback*/
    data = g_malloc0 (sizeof (SelData));
    data->view = section.destination_view;
    data->button = section.remove_button;
    g_object_set_data_full ((GObject *) section.destination_view, "sel-change-data", data, g_free);
    selection = gtk_tree_view_get_selection (section.destination_view);
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);

    g_signal_connect (
        selection, "changed",
        G_CALLBACK (selection_changed), data);

    g_signal_connect_swapped (
        section.destination_view, "row-activated",
        G_CALLBACK (destination_activated), name_selector_dialog);
    g_signal_connect_swapped (
        section.destination_view, "key-press-event",
        G_CALLBACK (destination_key_press), name_selector_dialog);

    /* Done! */

    gtk_widget_show_all (GTK_WIDGET (section.section_grid));

    /* Pack this section's box into the dialog */
    gtk_container_add (GTK_CONTAINER (name_selector_dialog->priv->destination_vgrid), GTK_WIDGET (section.section_grid));
    g_object_set (
        G_OBJECT (section.section_grid),
        "vexpand", TRUE,
        "valign", GTK_ALIGN_FILL,
        NULL);

    g_array_append_val (name_selector_dialog->priv->sections, section);

    /* Make sure UI is consistent */
    contact_selection_changed (name_selector_dialog);

    return name_selector_dialog->priv->sections->len - 1;
}

static void
free_section (ENameSelectorDialog *name_selector_dialog,
              gint n)
{
    Section *section;

    g_assert (n >= 0);
    g_assert (n < name_selector_dialog->priv->sections->len);

    section = &g_array_index (
        name_selector_dialog->priv->sections, Section, n);

    g_free (section->name);
    gtk_widget_destroy (GTK_WIDGET (section->section_grid));
}

static void
model_section_added (ENameSelectorDialog *name_selector_dialog,
                     const gchar *name)
{
    gchar             *pretty_name;
    EDestinationStore *destination_store;

    e_name_selector_model_peek_section (
        name_selector_dialog->priv->name_selector_model,
        name, &pretty_name, &destination_store);
    add_section (name_selector_dialog, name, pretty_name, destination_store);
    g_free (pretty_name);
}

static void
model_section_removed (ENameSelectorDialog *name_selector_dialog,
                       const gchar *name)
{
    gint section_index;

    section_index = find_section_by_name (name_selector_dialog, name);
    g_assert (section_index >= 0);

    free_section (name_selector_dialog, section_index);
    g_array_remove_index (
        name_selector_dialog->priv->sections, section_index);
}

/* -------------------- *
 * Addressbook selector *
 * -------------------- */

static void
view_progress (EBookClientView *view,
               guint percent,
               const gchar *message,
               ENameSelectorDialog *dialog)
{
    if (message == NULL)
        gtk_label_set_text (dialog->priv->status_label, "");
    else
        gtk_label_set_text (dialog->priv->status_label, message);
}

static void
view_complete (EBookClientView *view,
               const GError *error,
               ENameSelectorDialog *dialog)
{
    view_progress (view, -1, NULL, dialog);
}

static void
start_client_view_cb (EContactStore *store,
                      EBookClientView *client_view,
                      ENameSelectorDialog *name_selector_dialog)
{
    g_signal_connect (
        client_view, "progress",
        G_CALLBACK (view_progress), name_selector_dialog);

    g_signal_connect (
        client_view, "complete",
        G_CALLBACK (view_complete), name_selector_dialog);
}

static void
stop_client_view_cb (EContactStore *store,
                     EBookClientView *client_view,
                     ENameSelectorDialog *name_selector_dialog)
{
    g_signal_handlers_disconnect_by_func (client_view, view_progress, name_selector_dialog);
    g_signal_handlers_disconnect_by_func (client_view, view_complete, name_selector_dialog);
}

static void
name_selector_dialog_get_client_cb (GObject *source_object,
                                    GAsyncResult *result,
                                    gpointer user_data)
{
    ENameSelectorDialog *name_selector_dialog = user_data;
    EClient *client;
    EBookClient *book_client;
    EContactStore *store;
    ENameSelectorModel *model;
    GError *error = NULL;

    client = e_client_combo_box_get_client_finish (
        E_CLIENT_COMBO_BOX (source_object), result, &error);

    /* Sanity check. */
    g_return_if_fail (
        ((client != NULL) && (error == NULL)) ||
        ((client == NULL) && (error != NULL)));

    if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
        g_error_free (error);
        goto exit;
    }

    if (error != NULL) {
        gtk_label_set_text (
            name_selector_dialog->priv->status_label,
            error->message);
        g_error_free (error);
        goto exit;
    }

    book_client = E_BOOK_CLIENT (client);
    if (!book_client) {
        g_warn_if_fail (book_client != NULL);
        goto exit;
    }

    model = name_selector_dialog->priv->name_selector_model;
    store = e_name_selector_model_peek_contact_store (model);
    e_contact_store_add_client (store, book_client);
    g_object_unref (book_client);

 exit:
    g_object_unref (name_selector_dialog);
}

static void
source_changed (ENameSelectorDialog *name_selector_dialog,
                EClientComboBox *combo_box)
{
    GCancellable *cancellable;
    ESource *source;
    gpointer parent;

    source = e_source_combo_box_ref_active (E_SOURCE_COMBO_BOX (combo_box));

    parent = gtk_widget_get_toplevel (GTK_WIDGET (name_selector_dialog));
    parent = gtk_widget_is_toplevel (parent) ? parent : NULL;

    /* Remove any previous books being shown or loaded */
    remove_books (name_selector_dialog);

    if (source == NULL)
        return;

    cancellable = g_cancellable_new ();
    name_selector_dialog->priv->cancellable = cancellable;

    /* Connect to the selected source. */
    e_client_combo_box_get_client (
        combo_box, source, cancellable,
        name_selector_dialog_get_client_cb,
        g_object_ref (name_selector_dialog));

    g_object_unref (source);
}

/* --------------- *
 * Other UI events *
 * --------------- */

static void
search_changed (ENameSelectorDialog *name_selector_dialog)
{
    ENameSelectorDialogPrivate *priv = E_NAME_SELECTOR_DIALOG_GET_PRIVATE (name_selector_dialog);
    EContactStore *contact_store;
    EBookQuery    *book_query;
    GtkWidget     *combo_box;
    const gchar   *text;
    gchar         *text_escaped;
    gchar         *query_string;
    gchar         *category;
    gchar         *category_escaped;
    gchar         *user_fields_str;

    combo_box = priv->category_combobox;
    if (gtk_combo_box_get_active (GTK_COMBO_BOX (combo_box)) == -1)
        gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), 0);

    category = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (combo_box));
    category_escaped = escape_sexp_string (category);

    text = gtk_entry_get_text (name_selector_dialog->priv->search_entry);
    text_escaped = escape_sexp_string (text);

    user_fields_str = ens_util_populate_user_query_fields (priv->user_query_fields, text, text_escaped);

    if (g_strcmp0 (category, _("Any Category")) == 0)
        query_string = g_strdup_printf (
            "(or (beginswith \"file_as\" %s) "
            "    (beginswith \"full_name\" %s) "
            "    (beginswith \"email\" %s) "
            "    (beginswith \"nickname\" %s)%s))",
            text_escaped, text_escaped,
            text_escaped, text_escaped,
            user_fields_str ? user_fields_str : "");
    else
        query_string = g_strdup_printf (
            "(and (is \"category_list\" %s) "
            "(or (beginswith \"file_as\" %s) "
            "    (beginswith \"full_name\" %s) "
            "    (beginswith \"email\" %s) "
            "    (beginswith \"nickname\" %s)%s))",
            category_escaped, text_escaped, text_escaped,
            text_escaped, text_escaped,
            user_fields_str ? user_fields_str : "");

    book_query = e_book_query_from_string (query_string);

    contact_store = e_name_selector_model_peek_contact_store (
        name_selector_dialog->priv->name_selector_model);
    e_contact_store_set_query (contact_store, book_query);
    e_book_query_unref (book_query);

    g_free (query_string);
    g_free (text_escaped);
    g_free (category_escaped);
    g_free (category);
    g_free (user_fields_str);
}

static void
contact_selection_changed (ENameSelectorDialog *name_selector_dialog)
{
    GtkTreeSelection *contact_selection;
    gboolean          have_selection = FALSE;
    gint              i;

    contact_selection = gtk_tree_view_get_selection (
        name_selector_dialog->priv->contact_view);
    if (gtk_tree_selection_count_selected_rows (contact_selection))
        have_selection = TRUE;

    for (i = 0; i < name_selector_dialog->priv->sections->len; i++) {
        Section *section = &g_array_index (
            name_selector_dialog->priv->sections, Section, i);
        gtk_widget_set_sensitive (GTK_WIDGET (section->transfer_button), have_selection);
    }
}

static void
contact_activated (ENameSelectorDialog *name_selector_dialog,
                   GtkTreePath *path)
{
    EContactStore     *contact_store;
    EDestinationStore *destination_store;
    EContact          *contact;
    GtkTreeIter       iter;
    Section           *section;
    gint               email_n;

    /* When a contact is activated, we transfer it to the first destination on our list */

    contact_store = e_name_selector_model_peek_contact_store (
        name_selector_dialog->priv->name_selector_model);

    /* If we have no sections, we can't transfer */
    if (name_selector_dialog->priv->sections->len == 0)
        return;

    /* Get the contact to be transferred */

    if (!gtk_tree_model_get_iter (
        GTK_TREE_MODEL (name_selector_dialog->priv->contact_sort),
        &iter, path))
        g_assert_not_reached ();

    sort_iter_to_contact_store_iter (name_selector_dialog, &iter, &email_n);

    contact = e_contact_store_get_contact (contact_store, &iter);
    if (!contact) {
        g_warning ("ENameSelectorDialog could not get selected contact!");
        return;
    }

    section = &g_array_index (
        name_selector_dialog->priv->sections,
        Section, name_selector_dialog->priv->destination_index);
    if (!e_name_selector_model_peek_section (
        name_selector_dialog->priv->name_selector_model,
        section->name, NULL, &destination_store)) {
        g_warning ("ENameSelectorDialog has a section unknown to the model!");
        return;
    }

    add_destination (
        name_selector_dialog->priv->name_selector_model,
        destination_store, contact, email_n,
        e_contact_store_get_client (contact_store, &iter));
}

static void
destination_activated (ENameSelectorDialog *name_selector_dialog,
                       GtkTreePath *path,
                       GtkTreeViewColumn *column,
                       GtkTreeView *tree_view)
{
    gint               section_index;
    EDestinationStore *destination_store;
    EDestination      *destination;
    Section           *section;
    GtkTreeIter        iter;

    /* When a destination is activated, we remove it from the section */

    section_index = find_section_by_tree_view (
        name_selector_dialog, tree_view);
    if (section_index < 0) {
        g_warning ("ENameSelectorDialog got activation from unknown view!");
        return;
    }

    section = &g_array_index (
        name_selector_dialog->priv->sections, Section, section_index);
    if (!e_name_selector_model_peek_section (
        name_selector_dialog->priv->name_selector_model,
        section->name, NULL, &destination_store)) {
        g_warning ("ENameSelectorDialog has a section unknown to the model!");
        return;
    }

    if (!gtk_tree_model_get_iter (
        GTK_TREE_MODEL (destination_store), &iter, path))
        g_assert_not_reached ();

    destination = e_destination_store_get_destination (
        destination_store, &iter);
    g_assert (destination);

    e_destination_store_remove_destination (
        destination_store, destination);
}

static gboolean
remove_selection (ENameSelectorDialog *name_selector_dialog,
                  GtkTreeView *tree_view)
{
    gint               section_index;
    EDestinationStore *destination_store;
    EDestination      *destination;
    Section           *section;
    GtkTreeSelection  *selection;
    GList         *rows, *l;

    section_index = find_section_by_tree_view (
        name_selector_dialog, tree_view);
    if (section_index < 0) {
        g_warning ("ENameSelectorDialog got key press from unknown view!");
        return FALSE;
    }

    section = &g_array_index (
        name_selector_dialog->priv->sections, Section, section_index);
    if (!e_name_selector_model_peek_section (
        name_selector_dialog->priv->name_selector_model,
        section->name, NULL, &destination_store)) {
        g_warning ("ENameSelectorDialog has a section unknown to the model!");
        return FALSE;
    }

    selection = gtk_tree_view_get_selection (tree_view);
    if (!gtk_tree_selection_count_selected_rows (selection)) {
        g_warning ("ENameSelectorDialog remove button clicked, but no selection!");
        return FALSE;
    }

    rows = gtk_tree_selection_get_selected_rows (selection, NULL);
    rows = g_list_reverse (rows);

    for (l = rows; l; l = g_list_next (l)) {
        GtkTreeIter iter;
        GtkTreePath *path = l->data;

        if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (destination_store),
                          &iter, path))
            g_assert_not_reached ();

        gtk_tree_path_free (path);

        destination = e_destination_store_get_destination (
            destination_store, &iter);
        g_assert (destination);

        e_destination_store_remove_destination (
            destination_store, destination);
    }
    g_list_free (rows);

    return TRUE;
}

static void
remove_button_clicked (GtkButton *button,
                       SelData *data)
{
    GtkTreeView *view;
    ENameSelectorDialog *name_selector_dialog;

    view = data->view;
    name_selector_dialog = data->dlg_ptr;
    remove_selection (name_selector_dialog, view);
}

static gboolean
destination_key_press (ENameSelectorDialog *name_selector_dialog,
                       GdkEventKey *event,
                       GtkTreeView *tree_view)
{

    /* we only care about DEL key */
    if (event->keyval != GDK_KEY_Delete)
        return FALSE;
    return remove_selection (name_selector_dialog, tree_view);

}

static void
transfer_button_clicked (ENameSelectorDialog *name_selector_dialog,
                         GtkButton *transfer_button)
{
    EContactStore     *contact_store;
    EDestinationStore *destination_store;
    GtkTreeSelection  *selection;
    EContact          *contact;
    gint               section_index;
    Section           *section;
    gint               email_n;
    GList         *rows, *l;

    /* Get the contact to be transferred */

    contact_store = e_name_selector_model_peek_contact_store (
        name_selector_dialog->priv->name_selector_model);
    selection = gtk_tree_view_get_selection (
        name_selector_dialog->priv->contact_view);

    if (!gtk_tree_selection_count_selected_rows (selection)) {
        g_warning ("ENameSelectorDialog transfer button clicked, but no selection!");
        return;
    }

    /* Get the target section */
    section_index = find_section_by_transfer_button (
        name_selector_dialog, transfer_button);
    if (section_index < 0) {
        g_warning ("ENameSelectorDialog got click from unknown button!");
        return;
    }

    section = &g_array_index (
        name_selector_dialog->priv->sections, Section, section_index);
    if (!e_name_selector_model_peek_section (
        name_selector_dialog->priv->name_selector_model,
        section->name, NULL, &destination_store)) {
        g_warning ("ENameSelectorDialog has a section unknown to the model!");
        return;
    }

    rows = gtk_tree_selection_get_selected_rows (selection, NULL);
    rows = g_list_reverse (rows);

    for (l = rows; l; l = g_list_next (l)) {
        GtkTreeIter iter;
        GtkTreePath *path = l->data;

        if (!gtk_tree_model_get_iter (
            GTK_TREE_MODEL (name_selector_dialog->priv->contact_sort),
            &iter, path)) {
            gtk_tree_path_free (path);
            return;
        }

        gtk_tree_path_free (path);
        sort_iter_to_contact_store_iter (name_selector_dialog, &iter, &email_n);

        contact = e_contact_store_get_contact (contact_store, &iter);
        if (!contact) {
            g_warning ("ENameSelectorDialog could not get selected contact!");
            g_list_free (rows);
            return;
        }

        add_destination (
            name_selector_dialog->priv->name_selector_model,
            destination_store, contact, email_n,
            e_contact_store_get_client (contact_store, &iter));
    }
    g_list_free (rows);
}

/* --------------------- *
 * Main model management *
 * --------------------- */

static void
setup_name_selector_model (ENameSelectorDialog *name_selector_dialog)
{
    ETreeModelGenerator *contact_filter;
    EContactStore       *contact_store;
    GList               *new_sections;
    GList               *l;

    /* Create new destination sections in UI */

    new_sections = e_name_selector_model_list_sections (
        name_selector_dialog->priv->name_selector_model);

    for (l = new_sections; l; l = g_list_next (l)) {
        gchar             *name = l->data;
        gchar             *pretty_name;
        EDestinationStore *destination_store;

        e_name_selector_model_peek_section (
            name_selector_dialog->priv->name_selector_model,
            name, &pretty_name, &destination_store);

        add_section (name_selector_dialog, name, pretty_name, destination_store);

        g_free (pretty_name);
        g_free (name);
    }

    g_list_free (new_sections);

    /* Connect to section add/remove signals */

    g_signal_connect_swapped (
        name_selector_dialog->priv->name_selector_model, "section-added",
        G_CALLBACK (model_section_added), name_selector_dialog);
    g_signal_connect_swapped (
        name_selector_dialog->priv->name_selector_model, "section-removed",
        G_CALLBACK (model_section_removed), name_selector_dialog);

    /* Get contact store and its filter wrapper */

    contact_filter = e_name_selector_model_peek_contact_filter (
        name_selector_dialog->priv->name_selector_model);

    /* Create sorting model on top of filter, assign it to view */

    name_selector_dialog->priv->contact_sort = GTK_TREE_MODEL_SORT (
        gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL (contact_filter)));

    /* sort on full name as we display full name in name selector dialog */
    gtk_tree_sortable_set_sort_column_id (
        GTK_TREE_SORTABLE (name_selector_dialog->priv->contact_sort),
        E_CONTACT_FULL_NAME, GTK_SORT_ASCENDING);

    gtk_tree_view_set_model (
        name_selector_dialog->priv->contact_view,
        GTK_TREE_MODEL (name_selector_dialog->priv->contact_sort));

    contact_store = e_name_selector_model_peek_contact_store (name_selector_dialog->priv->name_selector_model);
    if (contact_store) {
        g_signal_connect (contact_store, "start-client-view", G_CALLBACK (start_client_view_cb), name_selector_dialog);
        g_signal_connect (contact_store, "stop-client-view", G_CALLBACK (stop_client_view_cb), name_selector_dialog);
    }

    /* Make sure UI is consistent */

    search_changed (name_selector_dialog);
    contact_selection_changed (name_selector_dialog);
}

static void
shutdown_name_selector_model (ENameSelectorDialog *name_selector_dialog)
{
    gint i;

    /* Rid UI of previous destination sections */

    for (i = 0; i < name_selector_dialog->priv->sections->len; i++)
        free_section (name_selector_dialog, i);

    g_array_set_size (name_selector_dialog->priv->sections, 0);

    /* Free sorting model */

    if (name_selector_dialog->priv->contact_sort) {
        g_object_unref (name_selector_dialog->priv->contact_sort);
        name_selector_dialog->priv->contact_sort = NULL;
    }

    /* Free backend model */

    if (name_selector_dialog->priv->name_selector_model) {
        EContactStore *contact_store;

        contact_store = e_name_selector_model_peek_contact_store (name_selector_dialog->priv->name_selector_model);
        if (contact_store) {
            g_signal_handlers_disconnect_by_func (contact_store, start_client_view_cb, name_selector_dialog);
            g_signal_handlers_disconnect_by_func (contact_store, stop_client_view_cb, name_selector_dialog);
        }

        g_signal_handlers_disconnect_matched (
            name_selector_dialog->priv->name_selector_model,
            G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, name_selector_dialog);

        g_object_unref (name_selector_dialog->priv->name_selector_model);
        name_selector_dialog->priv->name_selector_model = NULL;
    }
}

static void
contact_column_formatter (GtkTreeViewColumn *column,
                          GtkCellRenderer *cell,
                          GtkTreeModel *model,
                          GtkTreeIter *iter,
                          ENameSelectorDialog *name_selector_dialog)
{
    EContactStore *contact_store;
    EContact      *contact;
    GtkTreeIter    contact_store_iter;
    GList         *email_list;
    gchar         *string;
    gchar         *full_name_str;
    gchar         *email_str;
    gint           email_n;

    contact_store_iter = *iter;
    sort_iter_to_contact_store_iter (
        name_selector_dialog, &contact_store_iter, &email_n);

    contact_store = e_name_selector_model_peek_contact_store (
        name_selector_dialog->priv->name_selector_model);
    contact = e_contact_store_get_contact (
        contact_store, &contact_store_iter);
    email_list = e_name_selector_model_get_contact_emails_without_used (
        name_selector_dialog->priv->name_selector_model, contact, TRUE);
    email_str = g_list_nth_data (email_list, email_n);
    full_name_str = e_contact_get (contact, E_CONTACT_FULL_NAME);

    if (e_contact_get (contact, E_CONTACT_IS_LIST)) {
        if (!full_name_str)
            full_name_str = e_contact_get (contact, E_CONTACT_FILE_AS);
        string = g_strdup_printf ("%s", full_name_str ? full_name_str : "?");
    } else {
        string = g_strdup_printf (
            "%s%s<%s>", full_name_str ? full_name_str : "",
            full_name_str ? " " : "",
            email_str ? email_str : "");
    }

    g_free (full_name_str);
    e_name_selector_model_free_emails_list (email_list);

    g_object_set (cell, "text", string, NULL);
    g_free (string);
}

static void
destination_column_formatter (GtkTreeViewColumn *column,
                              GtkCellRenderer *cell,
                              GtkTreeModel *model,
                              GtkTreeIter *iter,
                              ENameSelectorDialog *name_selector_dialog)
{
    EDestinationStore *destination_store = E_DESTINATION_STORE (model);
    EDestination      *destination;
    GString           *buffer;

    destination = e_destination_store_get_destination (destination_store, iter);
    g_assert (destination);

    buffer = g_string_new (e_destination_get_name (destination));

    if (!e_destination_is_evolution_list (destination)) {
        const gchar *email;

        email = e_destination_get_email (destination);
        if (email == NULL || *email == '\0')
            email = "?";
        g_string_append_printf (buffer, " <%s>", email);
    }

    g_object_set (cell, "text", buffer->str, NULL);
    g_string_free (buffer, TRUE);
}

/* ----------------------- *
 * ENameSelectorDialog API *
 * ----------------------- */

/**
 * e_name_selector_dialog_peek_model:
 * @name_selector_dialog: an #ENameSelectorDialog
 *
 * Gets the #ENameSelectorModel used by @name_selector_model.
 *
 * Returns: The #ENameSelectorModel being used.
 **/
ENameSelectorModel *
e_name_selector_dialog_peek_model (ENameSelectorDialog *name_selector_dialog)
{
    g_return_val_if_fail (E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog), NULL);

    return name_selector_dialog->priv->name_selector_model;
}

/**
 * e_name_selector_dialog_set_model:
 * @name_selector_dialog: an #ENameSelectorDialog
 * @model: an #ENameSelectorModel
 *
 * Sets the model being used by @name_selector_dialog to @model.
 **/
void
e_name_selector_dialog_set_model (ENameSelectorDialog *name_selector_dialog,
                                  ENameSelectorModel *model)
{
    g_return_if_fail (E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog));
    g_return_if_fail (E_IS_NAME_SELECTOR_MODEL (model));

    if (model == name_selector_dialog->priv->name_selector_model)
        return;

    shutdown_name_selector_model (name_selector_dialog);
    name_selector_dialog->priv->name_selector_model = g_object_ref (model);

    setup_name_selector_model (name_selector_dialog);
}

/**
 * e_name_selector_dialog_set_destination_index:
 * @name_selector_dialog: an #ENameSelectorDialog
 * @index: index of the destination section, starting from 0.
 *
 * Sets the index number of the destination section.
 **/
void
e_name_selector_dialog_set_destination_index (ENameSelectorDialog *name_selector_dialog,
                                              guint index)
{
    g_return_if_fail (E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog));

    if (index >= name_selector_dialog->priv->sections->len)
        return;

    name_selector_dialog->priv->destination_index = index;
}

/**
 * e_name_selector_dialog_set_scrolling_policy:
 * @name_selector_dialog: an #ENameSelectorDialog
 * @hscrollbar_policy: scrolling policy for horizontal bar of the contacts window.
 * @vscrollbar_policy: scrolling policy for vertical bar of the contacts window.
 *
 * Sets the scrolling policy for the contacts section.
 *
 * Since: 3.2
 **/
void
e_name_selector_dialog_set_scrolling_policy (ENameSelectorDialog *name_selector_dialog,
                                             GtkPolicyType hscrollbar_policy,
                                             GtkPolicyType vscrollbar_policy)
{
    GtkScrolledWindow *win = GTK_SCROLLED_WINDOW (name_selector_dialog->priv->contact_window);

    gtk_scrolled_window_set_policy (win, hscrollbar_policy, vscrollbar_policy);
}

/**
 * e_name_selector_dialog_get_section_visible:
 * @name_selector_dialog: an #ENameSelectorDialog
 * @name: name of the section
 *
 * Returns: whether section named @name is visible in the dialog.
 *
 * Since: 3.8
 **/
gboolean
e_name_selector_dialog_get_section_visible (ENameSelectorDialog *name_selector_dialog,
                                            const gchar *name)
{
    Section *section;
    gint index;

    g_return_val_if_fail (E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog), FALSE);
    g_return_val_if_fail (name != NULL, FALSE);

    index = find_section_by_name (name_selector_dialog, name);
    g_return_val_if_fail (index != -1, FALSE);

    section = &g_array_index (name_selector_dialog->priv->sections, Section, index);
    return gtk_widget_get_visible (GTK_WIDGET (section->section_grid));
}

/**
 * e_name_selector_dialog_set_section_visible:
 * @name_selector_dialog: an #ENameSelectorDialog
 * @name: name of the section
 * @visible: whether to show or hide the section
 *
 * Shows or hides section named @name in the dialog.
 *
 * Since: 3.8
 **/
void
e_name_selector_dialog_set_section_visible (ENameSelectorDialog *name_selector_dialog,
                                            const gchar *name,
                                            gboolean visible)
{
    Section *section;
    gint index;

    g_return_if_fail (E_IS_NAME_SELECTOR_DIALOG (name_selector_dialog));
    g_return_if_fail (name != NULL);

    index = find_section_by_name (name_selector_dialog, name);
    g_return_if_fail (index != -1);

    section = &g_array_index (name_selector_dialog->priv->sections, Section, index);

    if (visible)
        gtk_widget_show (GTK_WIDGET (section->section_grid));
    else
        gtk_widget_hide (GTK_WIDGET (section->section_grid));
}