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dd650ff90e
gtk2/gtk/a11y/gtkatspitext.c
Matthias Clasen dd650ff90e atspi: D-Bus methods return tuples 
I've learned this the hard way: When returning a
value from a D-Bus call, the variant construct must
*always* be g_variant_new ("(...)"...
2020-10-12 15:50:36 -04:00

1152 lines
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/* gtkatspitext.c: Text interface for GtkAtspiContext
*
* Copyright 2020 Red Hat, Inc
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkatspitextprivate.h"
#include "gtkatspiprivate.h"
#include "gtkatspiutilsprivate.h"
#include "gtkatspipangoprivate.h"
#include "gtkatspitextbufferprivate.h"
#include "a11y/atspi/atspi-text.h"
#include "gtkatcontextprivate.h"
#include "gtkdebug.h"
#include "gtkeditable.h"
#include "gtklabelprivate.h"
#include "gtktextprivate.h"
#include "gtktextview.h"
#include <gio/gio.h>
static void
label_handle_method (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (method_name, "GetCaretOffset") == 0)
{
int offset;
offset = _gtk_label_get_cursor_position (GTK_LABEL (widget));
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", offset));
}
else if (g_strcmp0 (method_name, "SetCaretOffset") == 0)
{
int offset;
gboolean ret;
g_variant_get (parameters, "(i)", &offset);
ret = gtk_label_get_selectable (GTK_LABEL (widget));
if (ret)
gtk_label_select_region (GTK_LABEL (widget), offset, offset);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "GetText") == 0)
{
int start, end;
const char *text;
int len;
char *string;
g_variant_get (parameters, "(ii)", &start, &end);
text = gtk_label_get_text (GTK_LABEL (widget));
len = g_utf8_strlen (text, -1);
start = CLAMP (start, 0, len);
end = CLAMP (end, 0, len);
if (end <= start)
string = g_strdup ("");
else
{
const char *p, *q;
p = g_utf8_offset_to_pointer (text, start);
q = g_utf8_offset_to_pointer (text, end);
string = g_strndup (p, q - p);
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", string));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextBeforeOffset") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_before (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAtOffset") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_at (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAfterOffset") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_after (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetCharacterAtOffset") == 0)
{
int offset;
const char *text;
gunichar ch = 0;
g_variant_get (parameters, "(i)", &offset);
text = gtk_label_get_text (GTK_LABEL (widget));
if (0 <= offset && offset < g_utf8_strlen (text, -1))
ch = g_utf8_get_char (g_utf8_offset_to_pointer (text, offset));
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", ch));
}
else if (g_strcmp0 (method_name, "GetStringAtOffset") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
int offset;
AtspiTextGranularity granularity;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &granularity);
string = gtk_pango_get_string_at (layout, offset, granularity, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetAttributes") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
int start, end;
g_variant_get (parameters, "(i)", &offset);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetAttributeValue") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
const char *name;
int start, end;
GVariant *attrs;
const char *val;
g_variant_get (parameters, "(i&s)", &offset, &name);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
attrs = g_variant_builder_end (&builder);
if (!g_variant_lookup (attrs, name, "&s", &val))
val = "";
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", val));
g_variant_unref (attrs);
}
else if (g_strcmp0 (method_name, "GetAttributeRun") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
gboolean include_defaults;
int start, end;
g_variant_get (parameters, "(ib)", &offset, &include_defaults);
if (include_defaults)
gtk_pango_get_default_attributes (layout, &builder);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetDefaultAttributes") == 0 ||
g_strcmp0 (method_name, "GetDefaultAttributeSet") == 0)
{
PangoLayout *layout = gtk_label_get_layout (GTK_LABEL (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
gtk_pango_get_default_attributes (layout, &builder);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss})", &builder));
}
else if (g_strcmp0 (method_name, "GetNSelections") == 0)
{
int n = 0;
if (gtk_label_get_selection_bounds (GTK_LABEL (widget), NULL, NULL))
n = 1;
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", n));
}
else if (g_strcmp0 (method_name, "GetSelection") == 0)
{
int num;
int start, end;
gboolean ret = TRUE;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_label_get_selection_bounds (GTK_LABEL (widget), &start, &end))
ret = FALSE;
}
if (!ret)
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS, "Not a valid selection: %d", num);
else
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(ii)", start, end));
}
else if (g_strcmp0 (method_name, "AddSelection") == 0)
{
int start, end;
gboolean ret;
g_variant_get (parameters, "(ii)", &start, &end);
if (!gtk_label_get_selectable (GTK_LABEL (widget)) ||
gtk_label_get_selection_bounds (GTK_LABEL (widget), NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_label_select_region (GTK_LABEL (widget), start, end);
ret = TRUE;
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "RemoveSelection") == 0)
{
int num;
int start, end;
gboolean ret;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_label_get_selectable (GTK_LABEL (widget)) ||
!gtk_label_get_selection_bounds (GTK_LABEL (widget), &start, &end))
{
ret = FALSE;
}
else
{
gtk_label_select_region (GTK_LABEL (widget), end, end);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "SetSelection") == 0)
{
int num;
int start, end;
gboolean ret;
g_variant_get (parameters, "(iii)", &num, &start, &end);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_label_get_selectable (GTK_LABEL (widget)) ||
!gtk_label_get_selection_bounds (GTK_LABEL (widget), NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_label_select_region (GTK_LABEL (widget), start, end);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "GetCharacterExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetRangeExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetBoundedRanges") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringTo") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringToPoint") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
}
static GVariant *
label_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (property_name, "CharacterCount") == 0)
{
const char *text;
int len;
text = gtk_label_get_text (GTK_LABEL (widget));
len = g_utf8_strlen (text, -1);
return g_variant_new_int32 (len);
}
else if (g_strcmp0 (property_name, "CaretOffset") == 0)
{
int offset;
offset = _gtk_label_get_cursor_position (GTK_LABEL (widget));
return g_variant_new_int32 (offset);
}
return NULL;
}
static const GDBusInterfaceVTable label_vtable = {
label_handle_method,
label_get_property,
NULL,
};
static void
text_handle_method (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (method_name, "GetCaretOffset") == 0)
{
int offset;
offset = gtk_editable_get_position (GTK_EDITABLE (widget));
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", offset));
}
else if (g_strcmp0 (method_name, "SetCaretOffset") == 0)
{
int offset;
gboolean ret;
g_variant_get (parameters, "(i)", &offset);
gtk_editable_set_position (GTK_EDITABLE (widget), offset);
ret = TRUE;
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "GetText") == 0)
{
int start, end;
const char *text;
int len;
char *string;
g_variant_get (parameters, "(ii)", &start, &end);
text = gtk_editable_get_text (GTK_EDITABLE (widget));
len = g_utf8_strlen (text, -1);
start = CLAMP (start, 0, len);
end = CLAMP (end, 0, len);
if (end <= start)
string = g_strdup ("");
else
{
const char *p, *q;
p = g_utf8_offset_to_pointer (text, start);
q = g_utf8_offset_to_pointer (text, end);
string = g_strndup (p, q - p);
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", string));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextBeforeOffset") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_before (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAtOffset") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_at (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAfterOffset") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_pango_get_text_after (layout, offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetCharacterAtOffset") == 0)
{
int offset;
const char *text;
gunichar ch = 0;
g_variant_get (parameters, "(i)", &offset);
text = gtk_editable_get_text (GTK_EDITABLE (widget));
if (0 <= offset && offset < g_utf8_strlen (text, -1))
ch = g_utf8_get_char (g_utf8_offset_to_pointer (text, offset));
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", ch));
}
else if (g_strcmp0 (method_name, "GetStringAtOffset") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
int offset;
AtspiTextGranularity granularity;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &granularity);
string = gtk_pango_get_string_at (layout, offset, granularity, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetAttributes") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
int start, end;
g_variant_get (parameters, "(i)", &offset);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetAttributeValue") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
const char *name;
int start, end;
GVariant *attrs;
const char *val;
g_variant_get (parameters, "(i&s)", &offset, &name);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
attrs = g_variant_builder_end (&builder);
if (!g_variant_lookup (attrs, name, "&s", &val))
val = "";
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", val));
g_variant_unref (attrs);
}
else if (g_strcmp0 (method_name, "GetAttributeRun") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
gboolean include_defaults;
int start, end;
g_variant_get (parameters, "(ib)", &offset, &include_defaults);
if (include_defaults)
gtk_pango_get_default_attributes (layout, &builder);
gtk_pango_get_run_attributes (layout, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetDefaultAttributes") == 0 ||
g_strcmp0 (method_name, "GetDefaultAttributeSet") == 0)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
gtk_pango_get_default_attributes (layout, &builder);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss})", &builder));
}
else if (g_strcmp0 (method_name, "GetNSelections") == 0)
{
int n = 0;
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), NULL, NULL))
n = 1;
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", n));
}
else if (g_strcmp0 (method_name, "GetSelection") == 0)
{
int num;
int start, end;
gboolean ret = TRUE;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), &start, &end))
ret = FALSE;
}
if (!ret)
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS, "Not a valid selection: %d", num);
else
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(ii)", start, end));
}
else if (g_strcmp0 (method_name, "AddSelection") == 0)
{
int start, end;
gboolean ret;
g_variant_get (parameters, "(ii)", &start, &end);
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_editable_select_region (GTK_EDITABLE (widget), start, end);
ret = TRUE;
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "RemoveSelection") == 0)
{
int num;
int start, end;
gboolean ret;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), &start, &end))
{
ret = FALSE;
}
else
{
gtk_editable_select_region (GTK_EDITABLE (widget), end, end);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "SetSelection") == 0)
{
int num;
int start, end;
gboolean ret;
g_variant_get (parameters, "(iii)", &num, &start, &end);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_editable_select_region (GTK_EDITABLE (widget), start, end);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "GetCharacterExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetRangeExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetBoundedRanges") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringTo") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringToPoint") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
}
static GVariant *
text_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (property_name, "CharacterCount") == 0)
{
const char *text;
int len;
text = gtk_editable_get_text (GTK_EDITABLE (widget));
len = g_utf8_strlen (text, -1);
return g_variant_new_int32 (len);
}
else if (g_strcmp0 (property_name, "CaretOffset") == 0)
{
int offset;
offset = gtk_editable_get_position (GTK_EDITABLE (widget));
return g_variant_new_int32 (offset);
}
return NULL;
}
static const GDBusInterfaceVTable text_vtable = {
text_handle_method,
text_get_property,
NULL,
};
static void
text_view_handle_method (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (method_name, "GetCaretOffset") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextMark *insert;
GtkTextIter iter;
int offset;
insert = gtk_text_buffer_get_insert (buffer);
gtk_text_buffer_get_iter_at_mark (buffer, &iter, insert);
offset = gtk_text_iter_get_offset (&iter);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", offset));
}
else if (g_strcmp0 (method_name, "SetCaretOffset") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter iter;
int offset;
g_variant_get (parameters, "(i)", &offset);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, offset);
gtk_text_buffer_place_cursor (buffer, &iter);
gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (widget), &iter, 0, FALSE, 0, 0);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", TRUE));
}
else if (g_strcmp0 (method_name, "GetText") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter start_iter, end_iter;
int start, end;
char *string;
g_variant_get (parameters, "(ii)", &start, &end);
gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, start);
gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, end);
string = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", string));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextBeforeOffset") == 0)
{
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_text_view_get_text_before (GTK_TEXT_VIEW (widget), offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAtOffset") == 0)
{
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_text_view_get_text_at (GTK_TEXT_VIEW (widget), offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetTextAfterOffset") == 0)
{
int offset;
AtspiTextBoundaryType boundary_type;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &boundary_type);
string = gtk_text_view_get_text_after (GTK_TEXT_VIEW (widget), offset, boundary_type, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetCharacterAtOffset") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
int offset;
gunichar ch = 0;
g_variant_get (parameters, "(i)", &offset);
if (offset >= 0 && offset < gtk_text_buffer_get_char_count (buffer))
{
GtkTextIter start, end;
char *string;
gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
end = start;
gtk_text_iter_forward_char (&end);
string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
ch = g_utf8_get_char (string);
g_free (string);
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", ch));
}
else if (g_strcmp0 (method_name, "GetStringAtOffset") == 0)
{
int offset;
AtspiTextGranularity granularity;
char *string;
int start, end;
g_variant_get (parameters, "(iu)", &offset, &granularity);
string = gtk_text_view_get_string_at (GTK_TEXT_VIEW (widget), offset, granularity, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(sii)", string, start, end));
g_free (string);
}
else if (g_strcmp0 (method_name, "GetAttributes") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
int start, end;
g_variant_get (parameters, "(i)", &offset);
gtk_text_buffer_get_run_attributes (buffer, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetAttributeValue") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
const char *name;
int start, end;
GVariant *attrs;
const char *val;
g_variant_get (parameters, "(i&s)", &offset, &name);
gtk_text_buffer_get_run_attributes (buffer, &builder, offset, &start, &end);
attrs = g_variant_builder_end (&builder);
if (!g_variant_lookup (attrs, name, "&s", &val))
val = "";
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(s)", val));
g_variant_unref (attrs);
}
else if (g_strcmp0 (method_name, "GetAttributeRun") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
int offset;
gboolean include_defaults;
int start, end;
g_variant_get (parameters, "(ib)", &offset, &include_defaults);
if (include_defaults)
gtk_text_view_add_default_attributes (GTK_TEXT_VIEW (widget), &builder);
gtk_text_buffer_get_run_attributes (buffer, &builder, offset, &start, &end);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss}ii)", &builder, start, end));
}
else if (g_strcmp0 (method_name, "GetDefaultAttributes") == 0 ||
g_strcmp0 (method_name, "GetDefaultAttributeSet") == 0)
{
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("a{ss}"));
gtk_text_view_add_default_attributes (GTK_TEXT_VIEW (widget), &builder);
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(a{ss})", &builder));
}
else if (g_strcmp0 (method_name, "GetNSelections") == 0)
{
int n = 0;
if (gtk_text_buffer_get_selection_bounds (gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget)), NULL, NULL))
n = 1;
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", n));
}
else if (g_strcmp0 (method_name, "GetSelection") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter start_iter, end_iter;
int num;
int start, end;
gboolean ret = TRUE;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter))
ret = FALSE;
else
{
start = gtk_text_iter_get_offset (&start_iter);
end = gtk_text_iter_get_offset (&end_iter);
}
}
if (!ret)
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS, "Not a valid selection: %d", num);
else
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(ii)", start, end));
}
else if (g_strcmp0 (method_name, "AddSelection") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter start_iter, end_iter;
int start, end;
gboolean ret;
g_variant_get (parameters, "(ii)", &start, &end);
if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, start);
gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, end);
gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
ret = TRUE;
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(i)", ret));
}
else if (g_strcmp0 (method_name, "RemoveSelection") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter start_iter, end_iter;
int num;
gboolean ret;
g_variant_get (parameters, "(i)", &num);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter))
{
ret = FALSE;
}
else
{
gtk_text_buffer_select_range (buffer, &end_iter, &end_iter);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "SetSelection") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextIter start_iter, end_iter;
int num;
int start, end;
gboolean ret;
g_variant_get (parameters, "(iii)", &num, &start, &end);
if (num != 0)
ret = FALSE;
else
{
if (!gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL))
{
ret = FALSE;
}
else
{
gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, start);
gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, end);
gtk_text_buffer_select_range (buffer, &end_iter, &end_iter);
ret = TRUE;
}
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", ret));
}
else if (g_strcmp0 (method_name, "GetCharacterExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetRangeExtents") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "GetBoundedRanges") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringTo") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
else if (g_strcmp0 (method_name, "ScrollSubstringToPoint") == 0)
{
g_dbus_method_invocation_return_error_literal (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "");
}
}
static GVariant *
text_view_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GtkWidget *widget = GTK_WIDGET (accessible);
if (g_strcmp0 (property_name, "CharacterCount") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
int len;
len = gtk_text_buffer_get_char_count (buffer);
return g_variant_new_int32 (len);
}
else if (g_strcmp0 (property_name, "CaretOffset") == 0)
{
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
GtkTextMark *insert;
GtkTextIter iter;
int offset;
insert = gtk_text_buffer_get_insert (buffer);
gtk_text_buffer_get_iter_at_mark (buffer, &iter, insert);
offset = gtk_text_iter_get_offset (&iter);
return g_variant_new_int32 (offset);
}
return NULL;
}
static const GDBusInterfaceVTable text_view_vtable = {
text_view_handle_method,
text_view_get_property,
NULL,
};
const GDBusInterfaceVTable *
gtk_atspi_get_text_vtable (GtkWidget *widget)
{
if (GTK_IS_LABEL (widget))
return &label_vtable;
else if (GTK_IS_TEXT (widget))
return &text_vtable;
else if (GTK_IS_TEXT_VIEW (widget))
return &text_view_vtable;
return NULL;
}
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