path: root/addressbook/gui/widgets/e-addressbook-table-adapter.c

/*
 * 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:
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "e-addressbook-model.h"
#include "e-addressbook-table-adapter.h"
#include "eab-contact-merging.h"
#include "eab-gui-util.h"
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/xmlmemory.h>

struct _EAddressbookTableAdapterPrivate {
    EAddressbookModel *model;

    gint create_contact_id, remove_contact_id, modify_contact_id, model_changed_id;

    GHashTable *emails;
};

#define PARENT_TYPE e_table_model_get_type()
static ETableModelClass *parent_class;

#define COLS (E_CONTACT_FIELD_LAST)

static void
unlink_model (EAddressbookTableAdapter *adapter)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    g_signal_handler_disconnect (priv->model,
                     priv->create_contact_id);
    g_signal_handler_disconnect (priv->model,
                     priv->remove_contact_id);
    g_signal_handler_disconnect (priv->model,
                     priv->modify_contact_id);
    g_signal_handler_disconnect (priv->model,
                     priv->model_changed_id);

    priv->create_contact_id = 0;
    priv->remove_contact_id = 0;
    priv->modify_contact_id = 0;
    priv->model_changed_id = 0;

    g_object_unref (priv->model);

    priv->model = NULL;
}

static void
addressbook_dispose (GObject *object)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (object);

    if (adapter->priv) {
        unlink_model (adapter);

        g_hash_table_remove_all (adapter->priv->emails);
        g_hash_table_destroy (adapter->priv->emails);

        g_free (adapter->priv);
        adapter->priv = NULL;
    }

    if (G_OBJECT_CLASS (parent_class)->dispose)
        (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

/* This function returns the number of columns in our ETableModel. */
static gint
addressbook_col_count (ETableModel *etc)
{
    return COLS;
}

/* This function returns the number of rows in our ETableModel. */
static gint
addressbook_row_count (ETableModel *etc)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    return e_addressbook_model_contact_count (priv->model);
}

/* This function returns the value at a particular point in our ETableModel. */
static gpointer
addressbook_value_at (ETableModel *etc, gint col, gint row)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    const gchar *value;

    if (col >= COLS || row >= e_addressbook_model_contact_count (priv->model))
        return NULL;

    value = e_contact_get_const ((EContact*)e_addressbook_model_contact_at (priv->model, row), col);

    if (value && *value && (col == E_CONTACT_EMAIL_1 || col == E_CONTACT_EMAIL_2 || col == E_CONTACT_EMAIL_3)) {
        gchar *val = g_hash_table_lookup (priv->emails, value);

        if (val) {
            /* we have this already cached, so use value from the cache */
            value = val;
        } else {
            gchar *name = NULL, *mail = NULL;

            if (eab_parse_qp_email (value, &name, &mail))
                val = g_strdup_printf ("%s <%s>", name, mail);
            else
                val = g_strdup (value);

            g_free (name);
            g_free (mail);

            g_hash_table_insert (priv->emails, g_strdup (value), val);
            value = val;
        }
    }

    return (gpointer)(value ? value : "");
}

/* This function sets the value at a particular point in our ETableModel. */
static void
contact_modified_cb (EBook* book, const GError *error,
             gpointer user_data)
{
    if (error)
        eab_error_dialog (NULL, _("Error modifying card"), error);
}

static void
addressbook_set_value_at (ETableModel *etc, gint col, gint row, gconstpointer val)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    if (e_addressbook_model_get_editable (priv->model)) {
        EContact *contact;

        if (col >= COLS || row >= e_addressbook_model_contact_count (priv->model))
            return;

        contact = e_addressbook_model_get_contact (priv->model, row);
        if (!contact)
            return;

        e_table_model_pre_change (etc);

        if (col == E_CONTACT_EMAIL_1 || col == E_CONTACT_EMAIL_2 || col == E_CONTACT_EMAIL_3) {
            const gchar *old_value = e_contact_get_const (contact, col);

            /* remove old value from cache and use new one */
            if (old_value && *old_value)
                g_hash_table_remove (priv->emails, old_value);
        }

        e_contact_set (contact, col, (gpointer) val);
        eab_merging_book_commit_contact (e_addressbook_model_get_book (priv->model),
                         contact, contact_modified_cb, etc);

        g_object_unref (contact);

        /* XXX do we need this?  shouldn't the commit_contact generate a changed signal? */
        e_table_model_cell_changed (etc, col, row);
    }
}

/* This function returns whether a particular cell is editable. */
static gboolean
addressbook_is_cell_editable (ETableModel *etc, gint col, gint row)
{
#if 0
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    const EContact *contact;

    if (row >= 0 && row < e_addressbook_model_contact_count (priv->model))
        contact = e_addressbook_model_contact_at (priv->model, row);
    else
        contact = NULL;

    if (!e_addressbook_model_editable (priv->model))
        return FALSE;
    else if (contact && e_contact_get ((EContact *) contact, E_CONTACT_IS_LIST))
        /* we only allow editing of the name and file as for
                   lists */
        return col == E_CONTACT_FULL_NAME || col == E_CONTACT_FILE_AS;
    else
        return col < E_CONTACT_LAST_SIMPLE_STRING;
#endif

    return FALSE;
}

static void
addressbook_append_row (ETableModel *etm, ETableModel *source, gint row)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (etm);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    EContact *contact;
    gint col;

    contact = e_contact_new ();

    for (col = 1; col < E_CONTACT_LAST_SIMPLE_STRING; col++) {
        gconstpointer val = e_table_model_value_at (source, col, row);
        e_contact_set (contact, col, (gpointer) val);
    }

    eab_merging_book_add_contact (e_addressbook_model_get_book (priv->model), contact, NULL, NULL);

    g_object_unref (contact);
}

/* This function duplicates the value passed to it. */
static gpointer
addressbook_duplicate_value (ETableModel *etc, gint col, gconstpointer value)
{
    return g_strdup (value);
}

/* This function frees the value passed to it. */
static void
addressbook_free_value (ETableModel *etc, gint col, gpointer value)
{
    g_free (value);
}

static gpointer
addressbook_initialize_value (ETableModel *etc, gint col)
{
    return g_strdup("");
}

static gboolean
addressbook_value_is_empty (ETableModel *etc, gint col, gconstpointer value)
{
    return !(value && *(gchar *)value);
}

static gchar *
addressbook_value_to_string (ETableModel *etc, gint col, gconstpointer value)
{
    return g_strdup (value);
}

static void
eab_table_adapter_class_init (GObjectClass *object_class)
{
    ETableModelClass *model_class = (ETableModelClass *) object_class;

    parent_class = g_type_class_peek_parent (object_class);

    object_class->dispose = addressbook_dispose;

    model_class->column_count = addressbook_col_count;
    model_class->row_count = addressbook_row_count;
    model_class->value_at = addressbook_value_at;
    model_class->set_value_at = addressbook_set_value_at;
    model_class->is_cell_editable = addressbook_is_cell_editable;
    model_class->append_row = addressbook_append_row;
    model_class->duplicate_value = addressbook_duplicate_value;
    model_class->free_value = addressbook_free_value;
    model_class->initialize_value = addressbook_initialize_value;
    model_class->value_is_empty = addressbook_value_is_empty;
    model_class->value_to_string = addressbook_value_to_string;
}

static void
eab_table_adapter_init (GObject *object)
{
    EAddressbookTableAdapter *adapter = EAB_TABLE_ADAPTER (object);
    EAddressbookTableAdapterPrivate *priv;

    priv = adapter->priv = g_new0 (EAddressbookTableAdapterPrivate, 1);

    priv->create_contact_id = 0;
    priv->remove_contact_id = 0;
    priv->modify_contact_id = 0;
    priv->model_changed_id = 0;
}

static void
create_contact (EAddressbookModel *model,
        gint index, gint count,
        EAddressbookTableAdapter *adapter)
{
    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    e_table_model_rows_inserted (E_TABLE_MODEL (adapter), index, count);
}

static void
remove_contacts (EAddressbookModel *model,
        gpointer data,
        EAddressbookTableAdapter *adapter)
{
    GArray *indices = (GArray *) data;
    gint count = indices->len;

    /* clear whole cache */
    g_hash_table_remove_all (adapter->priv->emails);

    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    if (count == 1)
        e_table_model_rows_deleted (E_TABLE_MODEL (adapter), g_array_index (indices, gint, 0), 1);
    else
        e_table_model_changed (E_TABLE_MODEL (adapter));
}

static void
modify_contact (EAddressbookModel *model,
        gint index,
        EAddressbookTableAdapter *adapter)
{
    /* clear whole cache */
    g_hash_table_remove_all (adapter->priv->emails);

    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    e_table_model_row_changed (E_TABLE_MODEL (adapter), index);
}

static void
model_changed (EAddressbookModel *model,
           EAddressbookTableAdapter *adapter)
{
    /* clear whole cache */
    g_hash_table_remove_all (adapter->priv->emails);

    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    e_table_model_changed (E_TABLE_MODEL (adapter));
}

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

    if (!type) {
        static const GTypeInfo info =  {
            sizeof (EAddressbookTableAdapterClass),
            NULL,           /* base_init */
            NULL,           /* base_finalize */
            (GClassInitFunc) eab_table_adapter_class_init,
            NULL,           /* class_finalize */
            NULL,           /* class_data */
            sizeof (EAddressbookTableAdapter),
            0,             /* n_preallocs */
            (GInstanceInitFunc) eab_table_adapter_init,
        };

        type = g_type_register_static (PARENT_TYPE, "EAddressbookTableAdapter", &info, 0);
    }

    return type;
}

void
eab_table_adapter_construct (EAddressbookTableAdapter *adapter,
                       EAddressbookModel *model)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    priv->model = model;
    g_object_ref (priv->model);

    priv->create_contact_id = g_signal_connect (priv->model,
                           "contact_added",
                           G_CALLBACK (create_contact),
                           adapter);
    priv->remove_contact_id = g_signal_connect (priv->model,
                           "contacts_removed",
                           G_CALLBACK (remove_contacts),
                           adapter);
    priv->modify_contact_id = g_signal_connect (priv->model,
                           "contact_changed",
                           G_CALLBACK (modify_contact),
                           adapter);
    priv->model_changed_id = g_signal_connect (priv->model,
                          "model_changed",
                          G_CALLBACK (model_changed),
                          adapter);

    priv->emails = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify) g_free, (GDestroyNotify) g_free);
}

ETableModel *
eab_table_adapter_new (EAddressbookModel *model)
{
    EAddressbookTableAdapter *et;

    et = g_object_new (E_TYPE_AB_TABLE_ADAPTER, NULL);

    eab_table_adapter_construct (et, model);

    return E_TABLE_MODEL (et);
}