mirror of
https://gitlab.gnome.org/GNOME/nautilus
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52d960542b
And make the style of Nautilus the same for all files. Hopefully we can fix all the style issues we can find in the next days, so expect a little of movement on this. https://bugzilla.gnome.org/show_bug.cgi?id=770564
213 lines
6.1 KiB
C
213 lines
6.1 KiB
C
/* eel-accessibility.h - Utility functions for accessibility
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*
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* Copyright (C) 2002 Anders Carlsson, Sun Microsystems, Inc.
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*
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* The Eel Library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Eel Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with the Eel Library; see the file COPYING.LIB. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Anders Carlsson <andersca@gnu.org>
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* Michael Meeks <michael@ximian.com>
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*/
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#include <config.h>
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#include <gtk/gtk.h>
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#include <atk/atkrelationset.h>
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#include <eel/eel-accessibility.h>
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void
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eel_accessibility_set_up_label_widget_relation (GtkWidget *label,
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GtkWidget *widget)
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{
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AtkObject *atk_widget, *atk_label;
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atk_label = gtk_widget_get_accessible (label);
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atk_widget = gtk_widget_get_accessible (widget);
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/* Create the label -> widget relation */
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atk_object_add_relationship (atk_label, ATK_RELATION_LABEL_FOR, atk_widget);
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/* Create the widget -> label relation */
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atk_object_add_relationship (atk_widget, ATK_RELATION_LABELLED_BY, atk_label);
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}
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static GQuark
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get_quark_gobject (void)
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{
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static GQuark quark_accessible_gobject = 0;
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if (!quark_accessible_gobject)
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{
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quark_accessible_gobject = g_quark_from_static_string
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("object-for-accessible");
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}
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return quark_accessible_gobject;
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}
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/**
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* eel_accessibility_get_gobject:
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* @object: an AtkObject
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*
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* gets the GObject associated with the AtkObject, for which
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* @object provides accessibility support.
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*
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* Return value: the accessible's associated GObject
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**/
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gpointer
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eel_accessibility_get_gobject (AtkObject *object)
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{
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return g_object_get_qdata (G_OBJECT (object), get_quark_gobject ());
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}
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static GailTextUtil *
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get_simple_text (gpointer object)
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{
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GObject *gobject;
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EelAccessibleTextIface *aif;
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if (GTK_IS_ACCESSIBLE (object))
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{
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gobject = G_OBJECT (gtk_accessible_get_widget (GTK_ACCESSIBLE (object)));
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}
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else
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{
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gobject = eel_accessibility_get_gobject (object);
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}
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if (!gobject)
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{
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return NULL;
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}
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aif = EEL_ACCESSIBLE_TEXT_GET_IFACE (gobject);
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if (!aif)
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{
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g_warning ("No accessible text inferface on '%s'",
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g_type_name_from_instance ((gpointer) gobject));
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}
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else if (aif->get_text)
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{
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return aif->get_text (gobject);
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}
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return NULL;
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}
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char *
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eel_accessibility_text_get_text (AtkText *text,
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gint start_pos,
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gint end_pos)
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{
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, NULL);
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return gail_text_util_get_substring (util, start_pos, end_pos);
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}
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gunichar
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eel_accessibility_text_get_character_at_offset (AtkText *text,
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gint offset)
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{
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char *txt, *index;
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gint sucks1 = 0, sucks2 = -1;
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gunichar c;
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, 0);
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txt = gail_text_util_get_substring (util, sucks1, sucks2);
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index = g_utf8_offset_to_pointer (txt, offset);
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c = g_utf8_get_char (index);
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g_free (txt);
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return c;
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}
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char *
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eel_accessibility_text_get_text_before_offset (AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset)
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{
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, NULL);
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return gail_text_util_get_text (
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util, NULL, GAIL_BEFORE_OFFSET,
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boundary_type, offset, start_offset, end_offset);
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}
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char *
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eel_accessibility_text_get_text_at_offset (AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset)
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{
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, NULL);
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return gail_text_util_get_text (
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util, NULL, GAIL_AT_OFFSET,
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boundary_type, offset, start_offset, end_offset);
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}
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gchar *
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eel_accessibility_text_get_text_after_offset (AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset)
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{
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, NULL);
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return gail_text_util_get_text (
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util, NULL, GAIL_AFTER_OFFSET,
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boundary_type, offset, start_offset, end_offset);
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}
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gint
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eel_accessibility_text_get_character_count (AtkText *text)
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{
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GailTextUtil *util = get_simple_text (text);
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g_return_val_if_fail (util != NULL, -1);
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return gtk_text_buffer_get_char_count (util->buffer);
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}
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GType
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eel_accessible_text_get_type (void)
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{
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static GType type = 0;
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if (!type)
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{
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const GTypeInfo tinfo =
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{
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sizeof (AtkTextIface),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) NULL,
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(GClassFinalizeFunc) NULL
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};
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type = g_type_register_static (
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G_TYPE_INTERFACE, "EelAccessibleText", &tinfo, 0);
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}
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return type;
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}
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