A first experimental conversion from the gail namespace to gtkaccessible.
At the same time, use gtk_widget_class_set_accessible_type() to register
the accessible type for GtkLabel.
gailframe.c \
gailimage.c \
gailimagecell.c \
- gaillabel.c \
+ gtklabelaccessible.c \
gaillinkbutton.c \
gailmisc.c \
gailmenu.c \
gailframe.h \
gailimage.h \
gailimagecell.h \
- gaillabel.h \
+ gtklabelaccessible.h \
gaillinkbutton.h \
gailmisc.h \
gailmenu.h \
#include "gailframe.h"
#include "gailimage.h"
#include "gailimagecell.h"
-#include "gaillabel.h"
#include "gaillinkbutton.h"
#include "gailmenu.h"
#include "gailmenushell.h"
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_RANGE, GailRange, gail_range, GTK_TYPE_RANGE)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_SCALE, GailScale, gail_scale, GTK_TYPE_SCALE)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_SCALE_BUTTON, GailScaleButton, gail_scale_button, GTK_TYPE_SCALE_BUTTON)
-GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_LABEL, GailLabel, gail_label, GTK_TYPE_LABEL)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_STATUSBAR, GailStatusbar, gail_statusbar, GTK_TYPE_STATUSBAR)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_NOTEBOOK, GailNotebook, gail_notebook, GTK_TYPE_NOTEBOOK)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_CALENDAR, GailCalendar, gail_calendar, GTK_TYPE_CALENDAR)
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_RANGE, gail_range);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_SCALE, gail_scale);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_SCALE_BUTTON, gail_scale_button);
- GAIL_WIDGET_SET_FACTORY (GTK_TYPE_LABEL, gail_label);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_STATUSBAR, gail_statusbar);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_NOTEBOOK, gail_notebook);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CALENDAR, gail_calendar);
+++ /dev/null
-/* GAIL - The GNOME Accessibility Enabling Library
- * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-
-#include <string.h>
-
-#include <gtk/gtk.h>
-#include "gaillabel.h"
-#include "gailwindow.h"
-#include <libgail-util/gailmisc.h>
-
-static void gail_label_class_init (GailLabelClass *klass);
-static void gail_label_init (GailLabel *label);
-static void gail_label_real_initialize (AtkObject *obj,
- gpointer data);
-static void gail_label_real_notify_gtk (GObject *obj,
- GParamSpec *pspec);
-static void gail_label_map_gtk (GtkWidget *widget,
- gpointer data);
-static void gail_label_init_text_util (GailLabel *gail_label,
- GtkWidget *widget);
-static void gail_label_finalize (GObject *object);
-
-static void atk_text_interface_init (AtkTextIface *iface);
-
-/* atkobject.h */
-
-static const gchar* gail_label_get_name (AtkObject *accessible);
-static AtkStateSet* gail_label_ref_state_set (AtkObject *accessible);
-static AtkRelationSet* gail_label_ref_relation_set (AtkObject *accessible);
-
-/* atktext.h */
-
-static gchar* gail_label_get_text (AtkText *text,
- gint start_pos,
- gint end_pos);
-static gunichar gail_label_get_character_at_offset(AtkText *text,
- gint offset);
-static gchar* gail_label_get_text_before_offset(AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset);
-static gchar* gail_label_get_text_at_offset (AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset);
-static gchar* gail_label_get_text_after_offset (AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset);
-static gint gail_label_get_character_count (AtkText *text);
-static gint gail_label_get_caret_offset (AtkText *text);
-static gboolean gail_label_set_caret_offset (AtkText *text,
- gint offset);
-static gint gail_label_get_n_selections (AtkText *text);
-static gchar* gail_label_get_selection (AtkText *text,
- gint selection_num,
- gint *start_offset,
- gint *end_offset);
-static gboolean gail_label_add_selection (AtkText *text,
- gint start_offset,
- gint end_offset);
-static gboolean gail_label_remove_selection (AtkText *text,
- gint selection_num);
-static gboolean gail_label_set_selection (AtkText *text,
- gint selection_num,
- gint start_offset,
- gint end_offset);
-static void gail_label_get_character_extents (AtkText *text,
- gint offset,
- gint *x,
- gint *y,
- gint *width,
- gint *height,
- AtkCoordType coords);
-static gint gail_label_get_offset_at_point (AtkText *text,
- gint x,
- gint y,
- AtkCoordType coords);
-static AtkAttributeSet* gail_label_get_run_attributes
- (AtkText *text,
- gint offset,
- gint *start_offset,
- gint *end_offset);
-static AtkAttributeSet* gail_label_get_default_attributes
- (AtkText *text);
-
-G_DEFINE_TYPE_WITH_CODE (GailLabel, gail_label, GAIL_TYPE_WIDGET,
- G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
-
-static void
-gail_label_class_init (GailLabelClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
- GailWidgetClass *widget_class;
-
- gobject_class->finalize = gail_label_finalize;
-
- widget_class = (GailWidgetClass*)klass;
- widget_class->notify_gtk = gail_label_real_notify_gtk;
-
- class->get_name = gail_label_get_name;
- class->ref_state_set = gail_label_ref_state_set;
- class->ref_relation_set = gail_label_ref_relation_set;
- class->initialize = gail_label_real_initialize;
-}
-
-static void
-gail_label_init (GailLabel *label)
-{
-}
-
-static void
-gail_label_real_initialize (AtkObject *obj,
- gpointer data)
-{
- GtkWidget *widget;
- GailLabel *gail_label;
-
- ATK_OBJECT_CLASS (gail_label_parent_class)->initialize (obj, data);
-
- gail_label = GAIL_LABEL (obj);
-
- gail_label->window_create_handler = 0;
- gail_label->has_top_level = FALSE;
- gail_label->cursor_position = 0;
- gail_label->selection_bound = 0;
- gail_label->textutil = NULL;
- gail_label->label_length = 0;
-
- widget = GTK_WIDGET (data);
-
- if (gtk_widget_get_mapped (widget))
- gail_label_init_text_util (gail_label, widget);
- else
- g_signal_connect (widget,
- "map",
- G_CALLBACK (gail_label_map_gtk),
- gail_label);
-
- /*
- * Check whether ancestor of GtkLabel is a GtkButton and if so
- * set accessible parent for GailLabel
- */
- while (widget != NULL)
- {
- widget = gtk_widget_get_parent (widget);
- if (GTK_IS_BUTTON (widget))
- {
- atk_object_set_parent (obj, gtk_widget_get_accessible (widget));
- break;
- }
- }
-
- if (GTK_IS_ACCEL_LABEL (widget))
- obj->role = ATK_ROLE_ACCEL_LABEL;
- else
- obj->role = ATK_ROLE_LABEL;
-}
-
-static void
-gail_label_map_gtk (GtkWidget *widget,
- gpointer data)
-{
- GailLabel *gail_label;
-
- gail_label = GAIL_LABEL (data);
- gail_label_init_text_util (gail_label, widget);
-}
-
-static void
-gail_label_init_text_util (GailLabel *gail_label,
- GtkWidget *widget)
-{
- GtkLabel *label;
- const gchar *label_text;
-
- if (gail_label->textutil == NULL)
- gail_label->textutil = gail_text_util_new ();
-
- label = GTK_LABEL (widget);
- label_text = gtk_label_get_text (label);
- gail_text_util_text_setup (gail_label->textutil, label_text);
-
- if (label_text == NULL)
- gail_label->label_length = 0;
- else
- gail_label->label_length = g_utf8_strlen (label_text, -1);
-}
-
-static void
-notify_name_change (AtkObject *atk_obj)
-{
- GtkLabel *label;
- GailLabel *gail_label;
- GtkWidget *widget;
- GObject *gail_obj;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_obj));
- if (widget == NULL)
- /*
- * State is defunct
- */
- return;
-
- gail_obj = G_OBJECT (atk_obj);
- label = GTK_LABEL (widget);
- gail_label = GAIL_LABEL (atk_obj);
-
- if (gail_label->textutil == NULL)
- return;
-
- /*
- * Check whether the label has actually changed before emitting
- * notification.
- */
- if (gail_label->textutil->buffer)
- {
- GtkTextIter start, end;
- const char *new_label;
- char *old_label;
- int same;
-
- gtk_text_buffer_get_start_iter (gail_label->textutil->buffer, &start);
- gtk_text_buffer_get_end_iter (gail_label->textutil->buffer, &end);
- old_label = gtk_text_buffer_get_text (gail_label->textutil->buffer, &start, &end, FALSE);
- new_label = gtk_label_get_text (label);
- same = strcmp (new_label, old_label);
- g_free (old_label);
- if (same == 0)
- return;
- }
-
- /* Create a delete text and an insert text signal */
-
- g_signal_emit_by_name (gail_obj, "text_changed::delete", 0,
- gail_label->label_length);
-
- gail_label_init_text_util (gail_label, widget);
-
- g_signal_emit_by_name (gail_obj, "text_changed::insert", 0,
- gail_label->label_length);
-
- if (atk_obj->name == NULL)
- /*
- * The label has changed so notify a change in accessible-name
- */
- g_object_notify (gail_obj, "accessible-name");
-
- g_signal_emit_by_name (gail_obj, "visible_data_changed");
-}
-
-static void
-window_created (GObject *obj,
- gpointer data)
-{
- g_return_if_fail (GAIL_LABEL (data));
-
- notify_name_change (ATK_OBJECT (data));
-}
-
-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);
-}
-
-static void
-gail_label_finalize (GObject *object)
-{
- GailLabel *label = GAIL_LABEL (object);
-
- if (label->textutil)
- g_object_unref (label->textutil);
- G_OBJECT_CLASS (gail_label_parent_class)->finalize (object);
-}
-
-
-/* atkobject.h */
-
-static AtkStateSet*
-gail_label_ref_state_set (AtkObject *accessible)
-{
- AtkStateSet *state_set;
- GtkWidget *widget;
-
- state_set = ATK_OBJECT_CLASS (gail_label_parent_class)->ref_state_set (accessible);
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
-
- if (widget == NULL)
- return state_set;
-
- atk_state_set_add_state (state_set, ATK_STATE_MULTI_LINE);
-
- return state_set;
-}
-
-AtkRelationSet*
-gail_label_ref_relation_set (AtkObject *obj)
-{
- GtkWidget *widget;
- AtkRelationSet *relation_set;
-
- g_return_val_if_fail (GAIL_IS_LABEL (obj), NULL);
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
- if (widget == NULL)
- /*
- * State is defunct
- */
- return NULL;
-
- relation_set = ATK_OBJECT_CLASS (gail_label_parent_class)->ref_relation_set (obj);
-
- if (!atk_relation_set_contains (relation_set, ATK_RELATION_LABEL_FOR))
- {
- /*
- * Get the mnemonic widget
- *
- * The relation set is not updated if the mnemonic widget is changed
- */
- GtkWidget *mnemonic_widget = gtk_label_get_mnemonic_widget (GTK_LABEL (widget));
-
- if (mnemonic_widget)
- {
- AtkObject *accessible_array[1];
- AtkRelation* relation;
-
- if (!gtk_widget_get_can_focus (mnemonic_widget))
- {
- /*
- * Handle the case where a GtkFileChooserButton is specified as the
- * mnemonic widget. use the combobox which is a child of the
- * GtkFileChooserButton as the mnemonic widget. See bug #359843.
- */
- if (GTK_IS_BOX (mnemonic_widget))
- {
- GList *list, *tmpl;
-
- list = gtk_container_get_children (GTK_CONTAINER (mnemonic_widget));
- if (g_list_length (list) == 2)
- {
- tmpl = g_list_last (list);
- if (GTK_IS_COMBO_BOX(tmpl->data))
- {
- mnemonic_widget = GTK_WIDGET(tmpl->data);
- }
- }
- g_list_free (list);
- }
- }
- accessible_array[0] = gtk_widget_get_accessible (mnemonic_widget);
- relation = atk_relation_new (accessible_array, 1,
- ATK_RELATION_LABEL_FOR);
- atk_relation_set_add (relation_set, relation);
- /*
- * Unref the relation so that it is not leaked.
- */
- g_object_unref (relation);
- }
- }
- return relation_set;
-}
-
-static const gchar*
-gail_label_get_name (AtkObject *accessible)
-{
- const gchar *name;
-
- g_return_val_if_fail (GAIL_IS_LABEL (accessible), NULL);
-
- name = ATK_OBJECT_CLASS (gail_label_parent_class)->get_name (accessible);
- if (name != NULL)
- return name;
- else
- {
- /*
- * Get the text on the label
- */
- GtkWidget *widget;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
- if (widget == NULL)
- /*
- * State is defunct
- */
- return NULL;
-
- g_return_val_if_fail (GTK_IS_LABEL (widget), NULL);
-
- return gtk_label_get_text (GTK_LABEL (widget));
- }
-}
-
-/* atktext.h */
-
-static void
-atk_text_interface_init (AtkTextIface *iface)
-{
- iface->get_text = gail_label_get_text;
- iface->get_character_at_offset = gail_label_get_character_at_offset;
- iface->get_text_before_offset = gail_label_get_text_before_offset;
- iface->get_text_at_offset = gail_label_get_text_at_offset;
- iface->get_text_after_offset = gail_label_get_text_after_offset;
- iface->get_character_count = gail_label_get_character_count;
- iface->get_caret_offset = gail_label_get_caret_offset;
- iface->set_caret_offset = gail_label_set_caret_offset;
- iface->get_n_selections = gail_label_get_n_selections;
- iface->get_selection = gail_label_get_selection;
- iface->add_selection = gail_label_add_selection;
- iface->remove_selection = gail_label_remove_selection;
- iface->set_selection = gail_label_set_selection;
- iface->get_character_extents = gail_label_get_character_extents;
- iface->get_offset_at_point = gail_label_get_offset_at_point;
- iface->get_run_attributes = gail_label_get_run_attributes;
- iface->get_default_attributes = gail_label_get_default_attributes;
-}
-
-static gchar*
-gail_label_get_text (AtkText *text,
- gint start_pos,
- gint end_pos)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- const gchar *label_text;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- label = GTK_LABEL (widget);
-
- label_text = gtk_label_get_text (label);
-
- if (label_text == NULL)
- return NULL;
- else
- {
- if (GAIL_LABEL (text)->textutil == NULL)
- gail_label_init_text_util (GAIL_LABEL (text), widget);
- return gail_text_util_get_substring (GAIL_LABEL(text)->textutil,
- start_pos, end_pos);
- }
-}
-
-static gchar*
-gail_label_get_text_before_offset (AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
-
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- /* Get label */
- label = GTK_LABEL (widget);
-
- return gail_text_util_get_text (GAIL_LABEL (text)->textutil,
- gtk_label_get_layout (label), GAIL_BEFORE_OFFSET,
- boundary_type, offset, start_offset, end_offset);
-}
-
-static gchar*
-gail_label_get_text_at_offset (AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
-
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- /* Get label */
- label = GTK_LABEL (widget);
-
- return gail_text_util_get_text (GAIL_LABEL (text)->textutil,
- gtk_label_get_layout (label), GAIL_AT_OFFSET,
- boundary_type, offset, start_offset, end_offset);
-}
-
-static gchar*
-gail_label_get_text_after_offset (AtkText *text,
- gint offset,
- AtkTextBoundary boundary_type,
- gint *start_offset,
- gint *end_offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
-
- if (widget == NULL)
- {
- /* State is defunct */
- return NULL;
- }
-
- /* Get label */
- label = GTK_LABEL (widget);
-
- return gail_text_util_get_text (GAIL_LABEL (text)->textutil,
- gtk_label_get_layout (label), GAIL_AFTER_OFFSET,
- boundary_type, offset, start_offset, end_offset);
-}
-
-static gint
-gail_label_get_character_count (AtkText *text)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return 0;
-
- label = GTK_LABEL (widget);
- return g_utf8_strlen (gtk_label_get_text (label), -1);
-}
-
-static gint
-gail_label_get_caret_offset (AtkText *text)
-{
- return GAIL_LABEL (text)->cursor_position;
-}
-
-static gboolean
-gail_label_set_caret_offset (AtkText *text,
- gint offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
-
- 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) &&
- offset >= 0 &&
- offset <= g_utf8_strlen (gtk_label_get_text (label), -1))
- {
- gtk_label_select_region (label, offset, offset);
- return TRUE;
- }
- else
- return FALSE;
-}
-
-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 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_add_selection (AtkText *text,
- 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;
-
- 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_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, 0, 0);
- return TRUE;
- }
- else
- return FALSE;
-}
-
-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 void
-gail_label_get_character_extents (AtkText *text,
- gint offset,
- gint *x,
- gint *y,
- gint *width,
- gint *height,
- AtkCoordType coords)
-{
- GtkWidget *widget;
- GtkLabel *label;
- PangoRectangle char_rect;
- const gchar *label_text;
- gint index, x_layout, y_layout;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
-
- if (widget == NULL)
- /* State is defunct */
- return;
-
- label = GTK_LABEL (widget);
-
- gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
- label_text = gtk_label_get_text (label);
- index = g_utf8_offset_to_pointer (label_text, offset) - label_text;
- pango_layout_index_to_pos (gtk_label_get_layout (label), index, &char_rect);
-
- gail_misc_get_extents_from_pango_rectangle (widget, &char_rect,
- x_layout, y_layout, x, y, width, height, coords);
-}
-
-static gint
-gail_label_get_offset_at_point (AtkText *text,
- gint x,
- gint y,
- AtkCoordType coords)
-{
- GtkWidget *widget;
- GtkLabel *label;
- const gchar *label_text;
- gint index, x_layout, y_layout;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return -1;
- label = GTK_LABEL (widget);
-
- gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
-
- index = gail_misc_get_index_at_point_in_layout (widget,
- gtk_label_get_layout (label),
- x_layout, y_layout, x, y, coords);
- label_text = gtk_label_get_text (label);
- if (index == -1)
- {
- if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
- return g_utf8_strlen (label_text, -1);
-
- return index;
- }
- else
- return g_utf8_pointer_to_offset (label_text, label_text + index);
-}
-
-static AtkAttributeSet*
-gail_label_get_run_attributes (AtkText *text,
- gint offset,
- gint *start_offset,
- gint *end_offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
- AtkAttributeSet *at_set = NULL;
- GtkJustification justify;
- GtkTextDirection dir;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- label = GTK_LABEL (widget);
-
- /* Get values set for entire label, if any */
- justify = gtk_label_get_justify (label);
- if (justify != GTK_JUSTIFY_CENTER)
- {
- at_set = gail_misc_add_attribute (at_set,
- ATK_TEXT_ATTR_JUSTIFICATION,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION, justify)));
- }
- dir = gtk_widget_get_direction (widget);
- if (dir == GTK_TEXT_DIR_RTL)
- {
- at_set = gail_misc_add_attribute (at_set,
- ATK_TEXT_ATTR_DIRECTION,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
- }
-
- at_set = gail_misc_layout_get_run_attributes (at_set,
- gtk_label_get_layout (label),
- gtk_label_get_text (label),
- offset,
- start_offset,
- end_offset);
- return at_set;
-}
-
-static AtkAttributeSet*
-gail_label_get_default_attributes (AtkText *text)
-{
- GtkWidget *widget;
- GtkLabel *label;
- AtkAttributeSet *at_set = NULL;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- label = GTK_LABEL (widget);
-
- at_set = gail_misc_get_default_attributes (at_set,
- gtk_label_get_layout (label),
- widget);
- return at_set;
-}
-
-static gunichar
-gail_label_get_character_at_offset (AtkText *text,
- gint offset)
-{
- GtkWidget *widget;
- GtkLabel *label;
- const gchar *string;
- gchar *index;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
- if (widget == NULL)
- /* State is defunct */
- return '\0';
-
- label = GTK_LABEL (widget);
- string = gtk_label_get_text (label);
- if (offset >= g_utf8_strlen (string, -1))
- return '\0';
- index = g_utf8_offset_to_pointer (string, offset);
-
- return g_utf8_get_char (index);
-}
+++ /dev/null
-/* GAIL - The GNOME Accessibility Implementation Library
- * Copyright 2001 Sun Microsystems Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __GAIL_LABEL_H__
-#define __GAIL_LABEL_H__
-
-#include "gailwidget.h"
-#include "gailtextutil.h"
-
-G_BEGIN_DECLS
-
-#define GAIL_TYPE_LABEL (gail_label_get_type ())
-#define GAIL_LABEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GAIL_TYPE_LABEL, GailLabel))
-#define GAIL_LABEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GAIL_TYPE_LABEL, GailLabelClass))
-#define GAIL_IS_LABEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GAIL_TYPE_LABEL))
-#define GAIL_IS_LABEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GAIL_TYPE_LABEL))
-#define GAIL_LABEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GAIL_TYPE_LABEL, GailLabelClass))
-
-typedef struct _GailLabel GailLabel;
-typedef struct _GailLabelClass GailLabelClass;
-
-struct _GailLabel
-{
- GailWidget parent;
-
- GailTextUtil *textutil;
- gint cursor_position;
- gint selection_bound;
- gint label_length;
- gulong window_create_handler;
- gboolean has_top_level;
-};
-
-GType gail_label_get_type (void);
-
-struct _GailLabelClass
-{
- GailWidgetClass parent_class;
-};
-
-G_END_DECLS
-
-#endif /* __GAIL_LABEL_H__ */
--- /dev/null
+/* GAIL - The GNOME Accessibility Enabling Library
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gtk/gtk.h>
+#include "gtklabelaccessible.h"
+#include "gailwindow.h"
+#include <libgail-util/gailmisc.h>
+
+static void gtk_label_accessible_class_init (GtkLabelAccessibleClass *klass);
+static void gtk_label_accessible_init (GtkLabelAccessible *label);
+static void gtk_label_accessible_real_initialize (AtkObject *obj,
+ gpointer data);
+static void gtk_label_accessible_real_notify_gtk (GObject *obj,
+ GParamSpec *pspec);
+static void gtk_label_accessible_map_gtk (GtkWidget *widget,
+ gpointer data);
+static void gtk_label_accessible_init_text_util (GtkLabelAccessible *gail_label,
+ GtkWidget *widget);
+static void gtk_label_accessible_finalize (GObject *object);
+
+static void atk_text_interface_init (AtkTextIface *iface);
+
+/* atkobject.h */
+
+static const gchar* gtk_label_accessible_get_name (AtkObject *accessible);
+static AtkStateSet* gtk_label_accessible_ref_state_set (AtkObject *accessible);
+static AtkRelationSet* gtk_label_accessible_ref_relation_set (AtkObject *accessible);
+
+/* atktext.h */
+
+static gchar* gtk_label_accessible_get_text (AtkText *text,
+ gint start_pos,
+ gint end_pos);
+static gunichar gtk_label_accessible_get_character_at_offset(AtkText *text,
+ gint offset);
+static gchar* gtk_label_accessible_get_text_before_offset(AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset);
+static gchar* gtk_label_accessible_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset);
+static gchar* gtk_label_accessible_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset);
+static gint gtk_label_accessible_get_character_count (AtkText *text);
+static gint gtk_label_accessible_get_caret_offset (AtkText *text);
+static gboolean gtk_label_accessible_set_caret_offset (AtkText *text,
+ gint offset);
+static gint gtk_label_accessible_get_n_selections (AtkText *text);
+static gchar* gtk_label_accessible_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_offset,
+ gint *end_offset);
+static gboolean gtk_label_accessible_add_selection (AtkText *text,
+ gint start_offset,
+ gint end_offset);
+static gboolean gtk_label_accessible_remove_selection (AtkText *text,
+ gint selection_num);
+static gboolean gtk_label_accessible_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_offset,
+ gint end_offset);
+static void gtk_label_accessible_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords);
+static gint gtk_label_accessible_get_offset_at_point (AtkText *text,
+ gint x,
+ gint y,
+ AtkCoordType coords);
+static AtkAttributeSet* gtk_label_accessible_get_run_attributes
+ (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset);
+static AtkAttributeSet* gtk_label_accessible_get_default_attributes
+ (AtkText *text);
+
+G_DEFINE_TYPE_WITH_CODE (GtkLabelAccessible, gtk_label_accessible, GAIL_TYPE_WIDGET,
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
+
+static void
+gtk_label_accessible_class_init (GtkLabelAccessibleClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+ GailWidgetClass *widget_class;
+
+ gobject_class->finalize = gtk_label_accessible_finalize;
+
+ widget_class = (GailWidgetClass*)klass;
+ widget_class->notify_gtk = gtk_label_accessible_real_notify_gtk;
+
+ class->get_name = gtk_label_accessible_get_name;
+ class->ref_state_set = gtk_label_accessible_ref_state_set;
+ class->ref_relation_set = gtk_label_accessible_ref_relation_set;
+ class->initialize = gtk_label_accessible_real_initialize;
+}
+
+static void
+gtk_label_accessible_init (GtkLabelAccessible *label)
+{
+}
+
+static void
+gtk_label_accessible_real_initialize (AtkObject *obj,
+ gpointer data)
+{
+ GtkWidget *widget;
+ GtkLabelAccessible *accessible;
+
+ ATK_OBJECT_CLASS (gtk_label_accessible_parent_class)->initialize (obj, data);
+
+ accessible = GTK_LABEL_ACCESSIBLE (obj);
+
+ accessible->window_create_handler = 0;
+ accessible->has_top_level = FALSE;
+ accessible->cursor_position = 0;
+ accessible->selection_bound = 0;
+ accessible->textutil = NULL;
+ accessible->label_length = 0;
+
+ widget = GTK_WIDGET (data);
+
+ if (gtk_widget_get_mapped (widget))
+ gtk_label_accessible_init_text_util (accessible, widget);
+ else
+ g_signal_connect (widget, "map",
+ G_CALLBACK (gtk_label_accessible_map_gtk),
+ accessible);
+
+ /*
+ * Check whether ancestor of GtkLabel is a GtkButton and if so
+ * set accessible parent for GtkLabelAccessible
+ */
+ while (widget != NULL)
+ {
+ widget = gtk_widget_get_parent (widget);
+ if (GTK_IS_BUTTON (widget))
+ {
+ atk_object_set_parent (obj, gtk_widget_get_accessible (widget));
+ break;
+ }
+ }
+
+ if (GTK_IS_ACCEL_LABEL (widget))
+ obj->role = ATK_ROLE_ACCEL_LABEL;
+ else
+ obj->role = ATK_ROLE_LABEL;
+}
+
+static void
+gtk_label_accessible_map_gtk (GtkWidget *widget,
+ gpointer data)
+{
+ GtkLabelAccessible *accessible;
+
+ accessible = GTK_LABEL_ACCESSIBLE (data);
+ gtk_label_accessible_init_text_util (accessible, widget);
+}
+
+static void
+gtk_label_accessible_init_text_util (GtkLabelAccessible *accessible,
+ GtkWidget *widget)
+{
+ GtkLabel *label;
+ const gchar *label_text;
+
+ if (accessible->textutil == NULL)
+ accessible->textutil = gail_text_util_new ();
+
+ label = GTK_LABEL (widget);
+ label_text = gtk_label_get_text (label);
+ gail_text_util_text_setup (accessible->textutil, label_text);
+
+ if (label_text == NULL)
+ accessible->label_length = 0;
+ else
+ accessible->label_length = g_utf8_strlen (label_text, -1);
+}
+
+static void
+notify_name_change (AtkObject *atk_obj)
+{
+ GtkLabel *label;
+ GtkLabelAccessible *accessible;
+ GtkWidget *widget;
+ GObject *gail_obj;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_obj));
+ if (widget == NULL)
+ /*
+ * State is defunct
+ */
+ return;
+
+ gail_obj = G_OBJECT (atk_obj);
+ label = GTK_LABEL (widget);
+ accessible = GTK_LABEL_ACCESSIBLE (atk_obj);
+
+ if (accessible->textutil == NULL)
+ return;
+
+ /*
+ * Check whether the label has actually changed before emitting
+ * notification.
+ */
+ if (accessible->textutil->buffer)
+ {
+ GtkTextIter start, end;
+ const char *new_label;
+ char *old_label;
+ int same;
+
+ gtk_text_buffer_get_start_iter (accessible->textutil->buffer, &start);
+ gtk_text_buffer_get_end_iter (accessible->textutil->buffer, &end);
+ old_label = gtk_text_buffer_get_text (accessible->textutil->buffer, &start, &end, FALSE);
+ new_label = gtk_label_get_text (label);
+ same = strcmp (new_label, old_label);
+ g_free (old_label);
+ if (same == 0)
+ return;
+ }
+
+ /* Create a delete text and an insert text signal */
+
+ g_signal_emit_by_name (gail_obj, "text_changed::delete", 0,
+ accessible->label_length);
+
+ gtk_label_accessible_init_text_util (accessible, widget);
+
+ g_signal_emit_by_name (gail_obj, "text_changed::insert", 0,
+ accessible->label_length);
+
+ if (atk_obj->name == NULL)
+ /*
+ * The label has changed so notify a change in accessible-name
+ */
+ g_object_notify (gail_obj, "accessible-name");
+
+ g_signal_emit_by_name (gail_obj, "visible_data_changed");
+}
+
+static void
+window_created (GObject *obj,
+ gpointer data)
+{
+ g_return_if_fail (GTK_LABEL_ACCESSIBLE (data));
+
+ notify_name_change (ATK_OBJECT (data));
+}
+
+static void
+gtk_label_accessible_real_notify_gtk (GObject *obj,
+ GParamSpec *pspec)
+{
+ GtkWidget *widget = GTK_WIDGET (obj);
+ AtkObject* atk_obj = gtk_widget_get_accessible (widget);
+ GtkLabel *label;
+ GtkLabelAccessible *accessible;
+ GObject *gail_obj;
+ AtkObject *top_level;
+ AtkObject *temp_obj;
+
+ accessible = GTK_LABEL_ACCESSIBLE (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 (!accessible->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 (accessible->window_create_handler == 0 &&
+ GAIL_IS_WINDOW (top_level))
+ accessible->window_create_handler = g_signal_connect_after (top_level, "create", G_CALLBACK (window_created), atk_obj);
+ }
+ else
+ accessible->has_top_level = TRUE;
+ }
+ if (accessible->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 (accessible->selection_bound != -1 && accessible->selection_bound < accessible->cursor_position)
+ {
+ tmp = accessible->selection_bound;
+ accessible->selection_bound = accessible->cursor_position;
+ accessible->cursor_position = tmp;
+ }
+
+ if (gtk_label_get_selection_bounds (label, &start, &end))
+ {
+ if (start != accessible->cursor_position ||
+ end != accessible->selection_bound)
+ {
+ if (end != accessible->selection_bound)
+ {
+ accessible->selection_bound = start;
+ accessible->cursor_position = end;
+ }
+ else
+ {
+ accessible->selection_bound = end;
+ accessible->cursor_position = start;
+ }
+ text_caret_moved = TRUE;
+ if (start != end)
+ selection_changed = TRUE;
+ }
+ }
+ else
+ {
+ if (accessible->cursor_position != accessible->selection_bound)
+ selection_changed = TRUE;
+ if (gtk_label_get_selectable (label))
+ {
+ if (accessible->cursor_position != -1 && start != accessible->cursor_position)
+ text_caret_moved = TRUE;
+ if (accessible->selection_bound != -1 && end != accessible
+->selection_bound)
+ {
+ text_caret_moved = TRUE;
+ accessible->cursor_position = end;
+ accessible->selection_bound = start;
+ }
+ else
+ {
+ accessible->cursor_position = start;
+ accessible->selection_bound = end;
+ }
+ }
+ else
+ {
+ /* GtkLabel has become non selectable */
+
+ accessible->cursor_position = 0;
+ accessible->selection_bound = 0;
+ text_caret_moved = TRUE;
+ }
+
+ }
+ if (text_caret_moved)
+ g_signal_emit_by_name (gail_obj, "text_caret_moved",
+ accessible->cursor_position);
+ if (selection_changed)
+ g_signal_emit_by_name (gail_obj, "text_selection_changed");
+
+ }
+ else
+ GAIL_WIDGET_CLASS (gtk_label_accessible_parent_class)->notify_gtk (obj, pspec);
+}
+
+static void
+gtk_label_accessible_finalize (GObject *object)
+{
+ GtkLabelAccessible *accessible = GTK_LABEL_ACCESSIBLE (object);
+
+ if (accessible->textutil)
+ g_object_unref (accessible->textutil);
+ G_OBJECT_CLASS (gtk_label_accessible_parent_class)->finalize (object);
+}
+
+
+/* atkobject.h */
+
+static AtkStateSet*
+gtk_label_accessible_ref_state_set (AtkObject *accessible)
+{
+ AtkStateSet *state_set;
+ GtkWidget *widget;
+
+ state_set = ATK_OBJECT_CLASS (gtk_label_accessible_parent_class)->ref_state_set (accessible);
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
+
+ if (widget == NULL)
+ return state_set;
+
+ atk_state_set_add_state (state_set, ATK_STATE_MULTI_LINE);
+
+ return state_set;
+}
+
+AtkRelationSet*
+gtk_label_accessible_ref_relation_set (AtkObject *obj)
+{
+ GtkWidget *widget;
+ AtkRelationSet *relation_set;
+
+ g_return_val_if_fail (GTK_IS_LABEL_ACCESSIBLE (obj), NULL);
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ if (widget == NULL)
+ /*
+ * State is defunct
+ */
+ return NULL;
+
+ relation_set = ATK_OBJECT_CLASS (gtk_label_accessible_parent_class)->ref_relation_set (obj);
+
+ if (!atk_relation_set_contains (relation_set, ATK_RELATION_LABEL_FOR))
+ {
+ /*
+ * Get the mnemonic widget
+ *
+ * The relation set is not updated if the mnemonic widget is changed
+ */
+ GtkWidget *mnemonic_widget = gtk_label_get_mnemonic_widget (GTK_LABEL (widget));
+
+ if (mnemonic_widget)
+ {
+ AtkObject *accessible_array[1];
+ AtkRelation* relation;
+
+ if (!gtk_widget_get_can_focus (mnemonic_widget))
+ {
+ /*
+ * Handle the case where a GtkFileChooserButton is specified as the
+ * mnemonic widget. use the combobox which is a child of the
+ * GtkFileChooserButton as the mnemonic widget. See bug #359843.
+ */
+ if (GTK_IS_BOX (mnemonic_widget))
+ {
+ GList *list, *tmpl;
+
+ list = gtk_container_get_children (GTK_CONTAINER (mnemonic_widget));
+ if (g_list_length (list) == 2)
+ {
+ tmpl = g_list_last (list);
+ if (GTK_IS_COMBO_BOX(tmpl->data))
+ {
+ mnemonic_widget = GTK_WIDGET(tmpl->data);
+ }
+ }
+ g_list_free (list);
+ }
+ }
+ accessible_array[0] = gtk_widget_get_accessible (mnemonic_widget);
+ relation = atk_relation_new (accessible_array, 1,
+ ATK_RELATION_LABEL_FOR);
+ atk_relation_set_add (relation_set, relation);
+ /*
+ * Unref the relation so that it is not leaked.
+ */
+ g_object_unref (relation);
+ }
+ }
+ return relation_set;
+}
+
+static const gchar*
+gtk_label_accessible_get_name (AtkObject *accessible)
+{
+ const gchar *name;
+
+ g_return_val_if_fail (GTK_IS_LABEL_ACCESSIBLE (accessible), NULL);
+
+ name = ATK_OBJECT_CLASS (gtk_label_accessible_parent_class)->get_name (accessible);
+ if (name != NULL)
+ return name;
+ else
+ {
+ /*
+ * Get the text on the label
+ */
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
+ if (widget == NULL)
+ /*
+ * State is defunct
+ */
+ return NULL;
+
+ g_return_val_if_fail (GTK_IS_LABEL (widget), NULL);
+
+ return gtk_label_get_text (GTK_LABEL (widget));
+ }
+}
+
+/* atktext.h */
+
+static void
+atk_text_interface_init (AtkTextIface *iface)
+{
+ iface->get_text = gtk_label_accessible_get_text;
+ iface->get_character_at_offset = gtk_label_accessible_get_character_at_offset;
+ iface->get_text_before_offset = gtk_label_accessible_get_text_before_offset;
+ iface->get_text_at_offset = gtk_label_accessible_get_text_at_offset;
+ iface->get_text_after_offset = gtk_label_accessible_get_text_after_offset;
+ iface->get_character_count = gtk_label_accessible_get_character_count;
+ iface->get_caret_offset = gtk_label_accessible_get_caret_offset;
+ iface->set_caret_offset = gtk_label_accessible_set_caret_offset;
+ iface->get_n_selections = gtk_label_accessible_get_n_selections;
+ iface->get_selection = gtk_label_accessible_get_selection;
+ iface->add_selection = gtk_label_accessible_add_selection;
+ iface->remove_selection = gtk_label_accessible_remove_selection;
+ iface->set_selection = gtk_label_accessible_set_selection;
+ iface->get_character_extents = gtk_label_accessible_get_character_extents;
+ iface->get_offset_at_point = gtk_label_accessible_get_offset_at_point;
+ iface->get_run_attributes = gtk_label_accessible_get_run_attributes;
+ iface->get_default_attributes = gtk_label_accessible_get_default_attributes;
+}
+
+static gchar*
+gtk_label_accessible_get_text (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ const gchar *label_text;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = GTK_LABEL (widget);
+
+ label_text = gtk_label_get_text (label);
+
+ if (label_text == NULL)
+ return NULL;
+ else
+ {
+ if (GTK_LABEL_ACCESSIBLE (text)->textutil == NULL)
+ gtk_label_accessible_init_text_util (GTK_LABEL_ACCESSIBLE (text), widget);
+ return gail_text_util_get_substring (GTK_LABEL_ACCESSIBLE (text)->textutil,
+ start_pos, end_pos);
+ }
+}
+
+static gchar*
+gtk_label_accessible_get_text_before_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ /* Get label */
+ label = GTK_LABEL (widget);
+
+ return gail_text_util_get_text (GTK_LABEL_ACCESSIBLE (text)->textutil,
+ gtk_label_get_layout (label), GAIL_BEFORE_OFFSET,
+ boundary_type, offset, start_offset, end_offset);
+}
+
+static gchar*
+gtk_label_accessible_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ /* Get label */
+ label = GTK_LABEL (widget);
+
+ return gail_text_util_get_text (GTK_LABEL_ACCESSIBLE (text)->textutil,
+ gtk_label_get_layout (label), GAIL_AT_OFFSET,
+ boundary_type, offset, start_offset, end_offset);
+}
+
+static gchar*
+gtk_label_accessible_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+
+ if (widget == NULL)
+ {
+ /* State is defunct */
+ return NULL;
+ }
+
+ /* Get label */
+ label = GTK_LABEL (widget);
+
+ return gail_text_util_get_text (GTK_LABEL_ACCESSIBLE (text)->textutil,
+ gtk_label_get_layout (label), GAIL_AFTER_OFFSET,
+ boundary_type, offset, start_offset, end_offset);
+}
+
+static gint
+gtk_label_accessible_get_character_count (AtkText *text)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ label = GTK_LABEL (widget);
+ return g_utf8_strlen (gtk_label_get_text (label), -1);
+}
+
+static gint
+gtk_label_accessible_get_caret_offset (AtkText *text)
+{
+ return GTK_LABEL_ACCESSIBLE (text)->cursor_position;
+}
+
+static gboolean
+gtk_label_accessible_set_caret_offset (AtkText *text,
+ gint offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+
+ 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) &&
+ offset >= 0 &&
+ offset <= g_utf8_strlen (gtk_label_get_text (label), -1))
+ {
+ gtk_label_select_region (label, offset, offset);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gint
+gtk_label_accessible_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 gchar*
+gtk_label_accessible_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 (GTK_LABEL_ACCESSIBLE (text)->textutil,
+ *start_pos, *end_pos);
+ }
+ else
+ return NULL;
+}
+
+static gboolean
+gtk_label_accessible_add_selection (AtkText *text,
+ 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;
+
+ 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
+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)
+ /* 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_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 void
+gtk_label_accessible_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+ PangoRectangle char_rect;
+ const gchar *label_text;
+ gint index, x_layout, y_layout;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = GTK_LABEL (widget);
+
+ gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
+ label_text = gtk_label_get_text (label);
+ index = g_utf8_offset_to_pointer (label_text, offset) - label_text;
+ pango_layout_index_to_pos (gtk_label_get_layout (label), index, &char_rect);
+
+ gail_misc_get_extents_from_pango_rectangle (widget, &char_rect,
+ x_layout, y_layout, x, y, width, height, coords);
+}
+
+static gint
+gtk_label_accessible_get_offset_at_point (AtkText *text,
+ gint x,
+ gint y,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+ const gchar *label_text;
+ gint index, x_layout, y_layout;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return -1;
+ label = GTK_LABEL (widget);
+
+ gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
+
+ index = gail_misc_get_index_at_point_in_layout (widget,
+ gtk_label_get_layout (label),
+ x_layout, y_layout, x, y, coords);
+ label_text = gtk_label_get_text (label);
+ if (index == -1)
+ {
+ if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
+ return g_utf8_strlen (label_text, -1);
+
+ return index;
+ }
+ else
+ return g_utf8_pointer_to_offset (label_text, label_text + index);
+}
+
+static AtkAttributeSet*
+gtk_label_accessible_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+ AtkAttributeSet *at_set = NULL;
+ GtkJustification justify;
+ GtkTextDirection dir;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = GTK_LABEL (widget);
+
+ /* Get values set for entire label, if any */
+ justify = gtk_label_get_justify (label);
+ if (justify != GTK_JUSTIFY_CENTER)
+ {
+ at_set = gail_misc_add_attribute (at_set,
+ ATK_TEXT_ATTR_JUSTIFICATION,
+ g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION, justify)));
+ }
+ dir = gtk_widget_get_direction (widget);
+ if (dir == GTK_TEXT_DIR_RTL)
+ {
+ at_set = gail_misc_add_attribute (at_set,
+ ATK_TEXT_ATTR_DIRECTION,
+ g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
+ }
+
+ at_set = gail_misc_layout_get_run_attributes (at_set,
+ gtk_label_get_layout (label),
+ gtk_label_get_text (label),
+ offset,
+ start_offset,
+ end_offset);
+ return at_set;
+}
+
+static AtkAttributeSet*
+gtk_label_accessible_get_default_attributes (AtkText *text)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+ AtkAttributeSet *at_set = NULL;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = GTK_LABEL (widget);
+
+ at_set = gail_misc_get_default_attributes (at_set,
+ gtk_label_get_layout (label),
+ widget);
+ return at_set;
+}
+
+static gunichar
+gtk_label_accessible_get_character_at_offset (AtkText *text,
+ gint offset)
+{
+ GtkWidget *widget;
+ GtkLabel *label;
+ const gchar *string;
+ gchar *index;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return '\0';
+
+ label = GTK_LABEL (widget);
+ string = gtk_label_get_text (label);
+ if (offset >= g_utf8_strlen (string, -1))
+ return '\0';
+ index = g_utf8_offset_to_pointer (string, offset);
+
+ return g_utf8_get_char (index);
+}
--- /dev/null
+/* GAIL - The GNOME Accessibility Implementation Library
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GTK_LABEL_ACCESSIBLE_H__
+#define __GTK_LABEL_ACCESSIBLE_H__
+
+#include "gailwidget.h"
+#include "gailtextutil.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_LABEL_ACCESSIBLE (gtk_label_accessible_get_type ())
+#define GTK_LABEL_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_LABEL_ACCESSIBLE, GtkLabelAccessible))
+#define GTK_LABEL_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_LABEL_ACCESSIBLE, GtkLabelAccessibleClass))
+#define GTK_IS_LABEL_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_LABEL_ACCESSIBLE))
+#define GTK_IS_LABEL_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_LABEL_ACCESSIBLE))
+#define GTK_LABEL_ACCESSIBLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_LABEL_ACCESSIBLE, GtkLabelAccessibleClass))
+
+typedef struct _GtkLabelAccessible GtkLabelAccessible;
+typedef struct _GtkLabelAccessibleClass GtkLabelAccessibleClass;
+
+struct _GtkLabelAccessible
+{
+ GailWidget parent;
+
+ GailTextUtil *textutil;
+ gint cursor_position;
+ gint selection_bound;
+ gint label_length;
+ gulong window_create_handler;
+ gboolean has_top_level;
+};
+
+struct _GtkLabelAccessibleClass
+{
+ GailWidgetClass parent_class;
+};
+
+GType gtk_label_accessible_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GTK_LABEL_ACCESSIBLE_H__ */
#include "gtkprivate.h"
#include "gtktypebuiltins.h"
+#include "a11y/gtklabelaccessible.h"
/**
* SECTION:gtklabel
"activate-current-link", 0);
g_type_class_add_private (class, sizeof (GtkLabelPrivate));
+
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_LABEL_ACCESSIBLE);
}
static void
projects / gtk4.git / commitdiff