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

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

#include <config.h>
#include "e-addressbook-model.h"
#include "e-addressbook-table-adapter.h"
#include "e-card-merging.h"
#include "e-addressbook-util.h"
#include "ebook/e-destination.h"
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/xmlmemory.h>
#include <gnome.h>

struct _EAddressbookTableAdapterPrivate {
    EAddressbookModel *model;

    ECardSimple **simples;
    int count;

    int create_card_id, remove_card_id, modify_card_id, model_changed_id;
};

#define PARENT_TYPE e_table_model_get_type()
ETableModelClass *parent_class;

#define COLS (E_CARD_SIMPLE_FIELD_LAST)

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

    g_signal_handler_disconnect (priv->model,
                     priv->create_card_id);
    g_signal_handler_disconnect (priv->model,
                     priv->remove_card_id);
    g_signal_handler_disconnect (priv->model,
                     priv->modify_card_id);
    g_signal_handler_disconnect (priv->model,
                     priv->model_changed_id);

    priv->create_card_id = 0;
    priv->remove_card_id = 0;
    priv->modify_card_id = 0;
    priv->model_changed_id = 0;

    /* free up the existing mapping if there is one */
    if (priv->simples) {
        for (i = 0; i < priv->count; i ++)
            g_object_unref (priv->simples[i]);
        g_free (priv->simples);
        priv->simples = NULL;
    }

    g_object_unref (priv->model);

    priv->model = NULL;
}

static void
build_simple_mapping(EAddressbookTableAdapter *adapter)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    int i;

    /* free up the existing mapping if there is one */
    if (priv->simples) {
        for (i = 0; i < priv->count; i ++)
            g_object_unref (priv->simples[i]);
        g_free (priv->simples);
    }

    /* build up our mapping to ECardSimple*'s */
    priv->count = e_addressbook_model_card_count (priv->model);
    priv->simples = g_new (ECardSimple*, priv->count);
    for (i = 0; i < priv->count; i ++) {
        priv->simples[i] = e_card_simple_new (e_addressbook_model_card_at (priv->model, i));
        g_object_ref (priv->simples[i]);
    }
}

static void
addressbook_destroy(GtkObject *object)
{
    EAddressbookTableAdapter *adapter = E_ADDRESSBOOK_TABLE_ADAPTER(object);

    unlink_model(adapter);

    g_free (adapter->priv);
}

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

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

    return e_addressbook_model_card_count (priv->model);
}

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

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

    value = e_card_simple_get_const(priv->simples[row], col);

    if (value && !strncmp (value, "<?xml", 5)) {
        EDestination *dest = e_destination_import (value);
        if (dest) {
            /* XXX blech, we leak this */
            value = g_strdup (e_destination_get_address (dest));
            g_object_unref (dest);
        }
    }


    return (void *)(value ? value : "");
}

/* This function sets the value at a particular point in our ETableModel. */
static void
card_modified_cb (EBook* book, EBookStatus status,
          gpointer user_data)
{
    /* g_print ("%s: %s(): a card was modified\n", __FILE__, __FUNCTION__); */
    if (status != E_BOOK_STATUS_SUCCESS)
        e_addressbook_error_dialog (_("Error modifying card"), status);
}
static void
addressbook_set_value_at (ETableModel *etc, int col, int row, const void *val)
{
    EAddressbookTableAdapter *adapter = E_ADDRESSBOOK_TABLE_ADAPTER(etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    if (e_addressbook_model_editable (priv->model)) {
        ECard *card;

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

        e_table_model_pre_change(etc);

        e_card_simple_set(priv->simples[row],
                  col,
                  val);
        g_object_get(priv->simples[row],
                 "card", &card,
                 NULL);

        e_card_merging_book_commit_card(e_addressbook_model_get_ebook(priv->model),
                        card, card_modified_cb, NULL);

        /* XXX do we need this?  shouldn't the commit_card 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, int col, int row)
{
    EAddressbookTableAdapter *adapter = E_ADDRESSBOOK_TABLE_ADAPTER(etc);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    ECard *card;

    if (row >= 0 && row < e_addressbook_model_card_count (priv->model))
        card = e_addressbook_model_card_at (priv->model, row);
    else
        card = NULL;

    if (!e_addressbook_model_editable(priv->model))
        return FALSE;
    else if (card && e_card_evolution_list (card))
        /* we only allow editing of the name and file as for
                   lists */
        return col == E_CARD_SIMPLE_FIELD_FULL_NAME || col == E_CARD_SIMPLE_FIELD_FILE_AS; 
    else
        return col < E_CARD_SIMPLE_FIELD_LAST_SIMPLE_STRING;
}

static void
addressbook_append_row (ETableModel *etm, ETableModel *source, gint row)
{
    EAddressbookTableAdapter *adapter = E_ADDRESSBOOK_TABLE_ADAPTER(etm);
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    ECard *card;
    ECardSimple *simple;
    int col;

    card = e_card_new("");
    simple = e_card_simple_new(card);

    for (col = 0; col < E_CARD_SIMPLE_FIELD_LAST_SIMPLE_STRING; col++) {
        const void *val = e_table_model_value_at(source, col, row);
        e_card_simple_set(simple, col, val);
    }
    e_card_simple_sync_card(simple);
    e_card_merging_book_add_card (e_addressbook_model_get_ebook (priv->model), card, NULL, NULL);
    g_object_unref (simple);
    g_object_unref (card);
}

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

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

static void *
addressbook_initialize_value (ETableModel *etc, int col)
{
    return g_strdup("");
}

static gboolean
addressbook_value_is_empty (ETableModel *etc, int col, const void *value)
{
    return !(value && *(char *)value);
}

static char *
addressbook_value_to_string (ETableModel *etc, int col, const void *value)
{
    return g_strdup(value);
}

static void
e_addressbook_table_adapter_class_init (GtkObjectClass *object_class)
{
    ETableModelClass *model_class = (ETableModelClass *) object_class;

    parent_class = g_type_class_peek_parent (object_class);

    object_class->destroy = addressbook_destroy;

    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
e_addressbook_table_adapter_init (GtkObject *object)
{
    EAddressbookTableAdapter *adapter = E_ADDRESSBOOK_TABLE_ADAPTER(object);
    EAddressbookTableAdapterPrivate *priv;

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

    priv->create_card_id = 0;
    priv->remove_card_id = 0;
    priv->modify_card_id = 0;
    priv->model_changed_id = 0;
    priv->simples = NULL;
    priv->count = 0;
}


static void
create_card (EAddressbookModel *model,
         gint index, gint count,
         EAddressbookTableAdapter *adapter)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;
    int i;

    priv->count += count;
    priv->simples = g_renew(ECardSimple *, priv->simples, priv->count);
    memmove (priv->simples + index + count, priv->simples + index, (priv->count - index - count) * sizeof (ECardSimple *));

    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    for (i = 0; i < count; i ++) {
        priv->simples[index + i] = e_card_simple_new (e_addressbook_model_card_at (priv->model, index + i));
    }
    e_table_model_rows_inserted (E_TABLE_MODEL (adapter), index, count);
}

static void
remove_card (EAddressbookModel *model,
         gint index,
         EAddressbookTableAdapter *adapter)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    e_table_model_pre_change (E_TABLE_MODEL (adapter));

    g_object_unref (priv->simples[index]);
    memmove (priv->simples + index, priv->simples + index + 1, (priv->count - index - 1) * sizeof (ECardSimple *));
    priv->count --;
    e_table_model_rows_deleted (E_TABLE_MODEL (adapter), index, 1);
}

static void
modify_card (EAddressbookModel *model,
         gint index,
         EAddressbookTableAdapter *adapter)
{
    EAddressbookTableAdapterPrivate *priv = adapter->priv;

    e_table_model_pre_change (E_TABLE_MODEL (adapter));

    g_object_unref (priv->simples[index]);
    priv->simples[index] = e_card_simple_new (e_addressbook_model_card_at (priv->model, index));
    g_object_ref (priv->simples[index]);
    e_table_model_row_changed (E_TABLE_MODEL (adapter), index);
}

static void
model_changed (EAddressbookModel *model,
           EAddressbookTableAdapter *adapter)
{
    e_table_model_pre_change (E_TABLE_MODEL (adapter));
    build_simple_mapping (adapter);
    e_table_model_changed (E_TABLE_MODEL (adapter));
}

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

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

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

    return type;
}

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

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

    priv->create_card_id = g_signal_connect(priv->model,
                        "card_added",
                        G_CALLBACK(create_card),
                        adapter);
    priv->remove_card_id = g_signal_connect(priv->model,
                        "card_removed",
                        G_CALLBACK(remove_card),
                        adapter);
    priv->modify_card_id = g_signal_connect(priv->model,
                        "card_changed",
                        G_CALLBACK(modify_card),
                        adapter);
    priv->model_changed_id = g_signal_connect(priv->model,
                          "model_changed",
                          G_CALLBACK(model_changed),
                          adapter);

    build_simple_mapping (adapter);
}

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

    et = g_object_new(E_TYPE_ADDRESSBOOK_TABLE_ADAPTER, NULL);

    e_addressbook_table_adapter_construct (et, model);

    return E_TABLE_MODEL(et);
}