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 <gnome-xml/tree.h>
#include <gnome-xml/parser.h>
#include <gnome-xml/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;

    gtk_signal_disconnect(GTK_OBJECT (priv->model),
                  priv->create_card_id);
    gtk_signal_disconnect(GTK_OBJECT (priv->model),
                  priv->remove_card_id);
    gtk_signal_disconnect(GTK_OBJECT (priv->model),
                  priv->modify_card_id);
    gtk_signal_disconnect(GTK_OBJECT (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;

    gtk_object_unref(GTK_OBJECT(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 ++)
            gtk_object_unref (GTK_OBJECT (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));
        gtk_object_ref (GTK_OBJECT (priv->simples[i]));
    }
}

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

    unlink_model(adapter);
}

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

/* This function sets the value at a particular point in our ETableModel. */
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_card_simple_set(priv->simples[row],
                  col,
                  val);
        gtk_object_get(GTK_OBJECT(priv->simples[row]),
                   "card", &card,
                   NULL);

        e_book_commit_card(e_addressbook_model_get_ebook(priv->model),
                   card, NULL, 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;
    return e_addressbook_model_editable(priv->model) && 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_book_add_card (e_addressbook_model_get_ebook (priv->model), card, NULL, NULL);
    gtk_object_unref(GTK_OBJECT(simple));
    gtk_object_unref(GTK_OBJECT(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 = gtk_type_class (PARENT_TYPE);

    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 - 1, priv->simples + 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));
        gtk_object_ref (GTK_OBJECT (priv->simples[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;
    gtk_object_unref (GTK_OBJECT (priv->simples[index]));
    if (priv->count > 1)
        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_row_changed (E_TABLE_MODEL (adapter), index);
    gtk_object_unref (GTK_OBJECT (priv->simples[index]));
    priv->simples[index] = e_card_simple_new (e_addressbook_model_card_at (priv->model, index));
    gtk_object_ref (GTK_OBJECT (priv->simples[index]));
}

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

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

    if (!type){
        GtkTypeInfo info = {
            "EAddressbookTableAdapter",
            sizeof (EAddressbookTableAdapter),
            sizeof (EAddressbookTableAdapterClass),
            (GtkClassInitFunc) e_addressbook_table_adapter_class_init,
            (GtkObjectInitFunc) e_addressbook_table_adapter_init,
            NULL, /* reserved 1 */
            NULL, /* reserved 2 */
            (GtkClassInitFunc) NULL
        };

        type = gtk_type_unique (PARENT_TYPE, &info);
    }

    return type;
}

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

    priv->model = model;

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

    build_simple_mapping (adapter);
}

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

    et = gtk_type_new (e_addressbook_table_adapter_get_type ());

    e_addressbook_table_adapter_construct (et, model);

    return E_TABLE_MODEL(et);
}