enum EDSContactsStorageItemIterator::eCursorInit EDSContactsStorageItemIterator::cursorInit(EBookClient* c)
{
LOG_FUNC();
GError *gerror = NULL;
EContactField sort_fields[] = { E_CONTACT_FULL_NAME };
EBookCursorSortType sort_types[] = { E_BOOK_CURSOR_SORT_ASCENDING };
e_book_client_get_cursor_sync(c, NULL, sort_fields, sort_types, 1, &cursor, NULL, &gerror);
if (NULL != gerror)
{
LOG_ERROR() << "Error e_book_client_get_cursor_sync results: " << GERROR_MESSAGE(gerror)<<std::endl ;
GERROR_FREE(gerror);
return eCursorInitFail;
}
total = e_book_client_cursor_get_total(cursor);
LOG_VERBOSE() << "Number of contacts: " << total <<std::endl;
GERROR_FREE(gerror);
return eCursorInitOK;
}
static void
cursor_example_update_status (CursorExample *example)
{
CursorExamplePrivate *priv = example->priv;
gint total, position;
gchar *txt;
gboolean up_sensitive;
gboolean down_sensitive;
gdouble fraction;
total = e_book_client_cursor_get_total (priv->cursor);
position = e_book_client_cursor_get_position (priv->cursor);
/* Set the label showing the cursor position and total contacts */
txt = g_strdup_printf ("Position %d / Total %d", position, total);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (priv->progressbar), txt);
g_free (txt);
/* Give visual feedback on how far we are into the contact list */
fraction = position * 1.0F / (total - N_SLOTS);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (priv->progressbar), fraction);
/* Update sensitivity of buttons */
if (total <= N_SLOTS) {
/* If the amount of contacts is less than the amount of visual slots,
* then we cannot browse up and down
*/
up_sensitive = FALSE;
down_sensitive = FALSE;
} else {
/* The cursor is always pointing directly before
* the first contact visible in the view, so if the
* cursor is passed the first contact we can rewind.
*/
up_sensitive = position > 0;
/* If more than N_SLOTS contacts remain, then
* we can still scroll down */
down_sensitive = position < total - N_SLOTS;
}
gtk_widget_set_sensitive (priv->browse_up_button, up_sensitive);
gtk_widget_set_sensitive (priv->browse_down_button, down_sensitive);
}
static gboolean
cursor_example_timeout (CursorExample *example)
{
CursorExamplePrivate *priv = example->priv;
gboolean can_move;
switch (priv->activity) {
case TIMEOUT_NONE:
break;
case TIMEOUT_UP_INITIAL:
case TIMEOUT_UP_TICK:
/* Move the cursor backwards by 1 and then refresh the page */
if (cursor_example_move_cursor (example, E_BOOK_CURSOR_ORIGIN_CURRENT, 0 - 1)) {
cursor_example_load_page (example, NULL);
cursor_example_ensure_timeout (example, TIMEOUT_UP_TICK);
} else
cursor_example_cancel_timeout (example);
break;
case TIMEOUT_DOWN_INITIAL:
case TIMEOUT_DOWN_TICK:
/* Avoid scrolling past the end of the list - N_SLOTS */
can_move = (e_book_client_cursor_get_position (priv->cursor) <
e_book_client_cursor_get_total (priv->cursor) - N_SLOTS);
/* Move the cursor forwards by 1 and then refresh the page */
if (can_move &&
cursor_example_move_cursor (example, E_BOOK_CURSOR_ORIGIN_CURRENT, 1)) {
cursor_example_load_page (example, NULL);
cursor_example_ensure_timeout (example, TIMEOUT_DOWN_TICK);
} else
cursor_example_cancel_timeout (example);
break;
}
return FALSE;
}
