static VALUE
label_get_selection_bounds(VALUE self)
{
gint start, end;
gboolean ret = gtk_label_get_selection_bounds(_SELF(self), &start, &end);
return ret ? rb_ary_new3(2, INT2NUM(start), INT2NUM(end)) : Qnil;
}
static gchar*
gail_label_get_selection (AtkText *text,
gint selection_num,
gint *start_pos,
gint *end_pos)
{
GtkWidget *widget;
GtkLabel *label;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return NULL;
label = GTK_LABEL (widget);
/* Only let the user get the selection if one is set, and if the
* selection_num is 0.
*/
if (!gtk_label_get_selectable( label) || selection_num != 0)
return NULL;
if (gtk_label_get_selection_bounds (label, start_pos, end_pos))
{
const gchar* label_text = gtk_label_get_text (label);
if (label_text == NULL)
return 0;
else
return gail_text_util_get_substring (GAIL_LABEL (text)->textutil,
*start_pos, *end_pos);
}
else
return NULL;
}
static gboolean
gail_label_set_selection (AtkText *text,
gint selection_num,
gint start_pos,
gint end_pos)
{
GtkWidget *widget;
GtkLabel *label;
gint start, end;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return FALSE;
if (selection_num != 0)
return FALSE;
label = GTK_LABEL (widget);
if (!gtk_label_get_selectable (label))
return FALSE;
if (gtk_label_get_selection_bounds (label, &start, &end))
{
gtk_label_select_region (label, start_pos, end_pos);
return TRUE;
}
else
return FALSE;
}
static gboolean
gail_label_remove_selection (AtkText *text,
gint selection_num)
{
GtkWidget *widget;
GtkLabel *label;
gint start, end;
widget = GTK_ACCESSIBLE (text)->widget;
if (widget == NULL)
/* State is defunct */
return FALSE;
if (selection_num != 0)
return FALSE;
label = GTK_LABEL (widget);
if (!gtk_label_get_selectable (label))
return FALSE;
if (gtk_label_get_selection_bounds (label, &start, &end))
{
gtk_label_select_region (label, 0, 0);
return TRUE;
}
else
return FALSE;
}
static gboolean
gtk_label_accessible_remove_selection (AtkText *text,
gint selection_num)
{
GtkWidget *widget;
GtkLabel *label;
gint start, end;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
return FALSE;
if (selection_num != 0)
return FALSE;
label = GTK_LABEL (widget);
if (!gtk_label_get_selectable (label))
return FALSE;
if (gtk_label_get_selection_bounds (label, &start, &end))
{
gtk_label_select_region (label, end, end);
return TRUE;
}
else
return FALSE;
}
static gchar *
gtk_label_accessible_get_selection (AtkText *atk_text,
gint selection_num,
gint *start_pos,
gint *end_pos)
{
GtkWidget *widget;
GtkLabel *label;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
if (widget == NULL)
return NULL;
if (selection_num != 0)
return NULL;
label = GTK_LABEL (widget);
if (gtk_label_get_selection_bounds (label, start_pos, end_pos))
{
const gchar *text;
text = gtk_label_get_text (label);
if (text)
return g_utf8_substring (text, *start_pos, *end_pos);
}
return NULL;
}
CAMLprim value ml_gtk_label_get_selection_bounds (value label)
{
gint s, e;
value r;
if (gtk_label_get_selection_bounds (GtkLabel_val(label), &s, &e)) {
r = alloc_small(2, 0);
Field(r, 0) = Val_int(s);
Field(r, 1) = Val_int(e);
r = ml_some(r);
}
else
r = Val_unit;
return r;
}
static gint
gtk_label_accessible_get_n_selections (AtkText *text)
{
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
return 0;
if (gtk_label_get_selection_bounds (GTK_LABEL (widget), NULL, NULL))
return 1;
return 0;
}
static gint
gail_label_get_n_selections (AtkText *text)
{
GtkWidget *widget;
GtkLabel *label;
gint start, end;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return 0;
label = GTK_LABEL (widget);
if (!gtk_label_get_selectable (label))
return 0;
if (gtk_label_get_selection_bounds (label, &start, &end))
return 1;
else
return 0;
}
static gboolean
check_for_selection_change (GtkLabelAccessible *accessible,
GtkLabel *label)
{
gboolean ret_val = FALSE;
gint start, end;
if (gtk_label_get_selection_bounds (label, &start, &end))
{
if (end != accessible->cursor_position ||
start != accessible->selection_bound)
ret_val = TRUE;
}
else
{
ret_val = (accessible->cursor_position != accessible->selection_bound);
}
accessible->cursor_position = end;
accessible->selection_bound = start;
return ret_val;
}
static void
gail_label_real_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkWidget *widget = GTK_WIDGET (obj);
AtkObject* atk_obj = gtk_widget_get_accessible (widget);
GtkLabel *label;
GailLabel *gail_label;
GObject *gail_obj;
AtkObject *top_level;
AtkObject *temp_obj;
gail_label = GAIL_LABEL (atk_obj);
if (strcmp (pspec->name, "label") == 0)
{
/*
* We may get a label change for a label which is not attached to an
* application. We wait until the toplevel window is created before
* emitting the notification.
*
* This happens when [Ctrl+]Alt+Tab is pressed in metacity
*/
if (!gail_label->has_top_level)
{
temp_obj = atk_obj;
top_level = NULL;
while (temp_obj)
{
top_level = temp_obj;
temp_obj = atk_object_get_parent (top_level);
}
if (atk_object_get_role (top_level) != ATK_ROLE_APPLICATION)
{
if (gail_label->window_create_handler == 0 &&
GAIL_IS_WINDOW (top_level))
gail_label->window_create_handler = g_signal_connect_after (top_level, "create", G_CALLBACK (window_created), atk_obj);
}
else
gail_label->has_top_level = TRUE;
}
if (gail_label->has_top_level)
notify_name_change (atk_obj);
}
else if (strcmp (pspec->name, "cursor-position") == 0)
{
gint start, end, tmp;
gboolean text_caret_moved = FALSE;
gboolean selection_changed = FALSE;
gail_obj = G_OBJECT (atk_obj);
label = GTK_LABEL (widget);
if (gail_label->selection_bound != -1 && gail_label->selection_bound < gail_label->cursor_position)
{
tmp = gail_label->selection_bound;
gail_label->selection_bound = gail_label->cursor_position;
gail_label->cursor_position = tmp;
}
if (gtk_label_get_selection_bounds (label, &start, &end))
{
if (start != gail_label->cursor_position ||
end != gail_label->selection_bound)
{
if (end != gail_label->selection_bound)
{
gail_label->selection_bound = start;
gail_label->cursor_position = end;
}
else
{
gail_label->selection_bound = end;
gail_label->cursor_position = start;
}
text_caret_moved = TRUE;
if (start != end)
selection_changed = TRUE;
}
}
else
{
if (gail_label->cursor_position != gail_label->selection_bound)
selection_changed = TRUE;
if (gtk_label_get_selectable (label))
{
if (gail_label->cursor_position != -1 && start != gail_label->cursor_position)
text_caret_moved = TRUE;
if (gail_label->selection_bound != -1 && end != gail_label->selection_bound)
{
text_caret_moved = TRUE;
gail_label->cursor_position = end;
gail_label->selection_bound = start;
}
else
{
gail_label->cursor_position = start;
gail_label->selection_bound = end;
}
}
else
{
/* GtkLabel has become non selectable */
gail_label->cursor_position = 0;
gail_label->selection_bound = 0;
text_caret_moved = TRUE;
}
}
if (text_caret_moved)
g_signal_emit_by_name (gail_obj, "text_caret_moved",
gail_label->cursor_position);
if (selection_changed)
g_signal_emit_by_name (gail_obj, "text_selection_changed");
}
else
GAIL_WIDGET_CLASS (gail_label_parent_class)->notify_gtk (obj, pspec);
}
