mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-10 02:40:11 +00:00
371 lines
12 KiB
C
371 lines
12 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
|
*
|
|
* Copyright (C) 2017 Red Hat, 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 2.1 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/>.
|
|
*
|
|
* Author: Benjamin Otte <otte@gnome.org>
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdktextlistconverter-x11.h"
|
|
|
|
#include "gdkintl.h"
|
|
#include "gdkprivate-x11.h"
|
|
|
|
#define GDK_X11_TEXT_LIST_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GDK_TYPE_X11_TEXT_LIST_CONVERTER, GdkX11TextListConverterClass))
|
|
#define GDK_IS_X11_TEXT_LIST_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GDK_TYPE_X11_TEXT_LIST_CONVERTER))
|
|
#define GDK_X11_TEXT_LIST_CONVERTER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_X11_TEXT_LIST_CONVERTER, GdkX11TextListConverterClass))
|
|
|
|
typedef struct _GdkX11TextListConverterClass GdkX11TextListConverterClass;
|
|
|
|
struct _GdkX11TextListConverter
|
|
{
|
|
GObject parent_instance;
|
|
|
|
GdkDisplay *display;
|
|
|
|
const char *encoding; /* interned */
|
|
int format;
|
|
|
|
guint encoder : 1;
|
|
};
|
|
|
|
struct _GdkX11TextListConverterClass
|
|
{
|
|
GObjectClass parent_class;
|
|
};
|
|
|
|
static GConverterResult
|
|
write_output (void *outbuf,
|
|
gsize outbuf_size,
|
|
gsize *bytes_written,
|
|
const void *data,
|
|
gssize len,
|
|
GError **error)
|
|
{
|
|
if (len < 0)
|
|
len = strlen (data) + 1;
|
|
|
|
if (outbuf_size < len)
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NO_SPACE,
|
|
_("Not enough space in destination"));
|
|
return G_CONVERTER_ERROR;
|
|
}
|
|
|
|
memcpy (outbuf, data, len);
|
|
*bytes_written = len;
|
|
return G_CONVERTER_FINISHED;
|
|
}
|
|
|
|
static GConverterResult
|
|
gdk_x11_text_list_converter_decode (GdkX11TextListConverter *conv,
|
|
const void *inbuf,
|
|
gsize inbuf_size,
|
|
void *outbuf,
|
|
gsize outbuf_size,
|
|
GConverterFlags flags,
|
|
gsize *bytes_read,
|
|
gsize *bytes_written,
|
|
GError **error)
|
|
{
|
|
int count;
|
|
char **list;
|
|
|
|
if (!(flags & G_CONVERTER_INPUT_AT_END))
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PARTIAL_INPUT,
|
|
_("Need complete input to do conversion"));
|
|
return G_CONVERTER_ERROR;
|
|
}
|
|
|
|
count = _gdk_x11_display_text_property_to_utf8_list (conv->display,
|
|
conv->encoding,
|
|
conv->format,
|
|
inbuf,
|
|
inbuf_size,
|
|
&list);
|
|
if (count < 0)
|
|
{
|
|
/* XXX: add error handling from gdkselection-x11.c */
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NO_SPACE,
|
|
_("Not enough space in destination"));
|
|
return G_CONVERTER_ERROR;
|
|
}
|
|
else if (count == 0)
|
|
{
|
|
*bytes_read = inbuf_size;
|
|
return write_output (outbuf, outbuf_size, bytes_written, "", 1, error);
|
|
}
|
|
else
|
|
{
|
|
GConverterResult result;
|
|
|
|
result = write_output (outbuf, outbuf_size, bytes_written, list[0], -1, error);
|
|
g_strfreev (list);
|
|
*bytes_read = inbuf_size;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
/* The specifications for COMPOUND_TEXT and STRING specify that C0 and
|
|
* C1 are not allowed except for \n and \t, however the X conversions
|
|
* routines for COMPOUND_TEXT only enforce this in one direction,
|
|
* causing cut-and-paste of \r and \r\n separated text to fail.
|
|
* This routine strips out all non-allowed C0 and C1 characters
|
|
* from the input string and also canonicalizes \r, and \r\n to \n
|
|
*/
|
|
char *
|
|
gdk_x11_utf8_to_string_target (const char *utf8_str,
|
|
gboolean return_latin1)
|
|
{
|
|
int len = strlen (utf8_str);
|
|
GString *result = g_string_sized_new (len);
|
|
const char *p = utf8_str;
|
|
|
|
while (*p)
|
|
{
|
|
if (*p == '\r')
|
|
{
|
|
p++;
|
|
if (*p == '\n')
|
|
p++;
|
|
|
|
g_string_append_c (result, '\n');
|
|
}
|
|
else
|
|
{
|
|
gunichar ch = g_utf8_get_char (p);
|
|
|
|
if (!((ch < 0x20 && ch != '\t' && ch != '\n') || (ch >= 0x7f && ch < 0xa0)))
|
|
{
|
|
if (return_latin1)
|
|
{
|
|
if (ch <= 0xff)
|
|
g_string_append_c (result, ch);
|
|
else
|
|
g_string_append_printf (result,
|
|
ch < 0x10000 ? "\\u%04x" : "\\U%08x",
|
|
ch);
|
|
}
|
|
else
|
|
{
|
|
char buf[7];
|
|
int buflen;
|
|
|
|
buflen = g_unichar_to_utf8 (ch, buf);
|
|
g_string_append_len (result, buf, buflen);
|
|
}
|
|
}
|
|
|
|
p = g_utf8_next_char (p);
|
|
}
|
|
}
|
|
|
|
return g_string_free (result, FALSE);
|
|
}
|
|
|
|
static GConverterResult
|
|
gdk_x11_text_list_converter_encode (GdkX11TextListConverter *conv,
|
|
const void *inbuf,
|
|
gsize inbuf_size,
|
|
void *outbuf,
|
|
gsize outbuf_size,
|
|
GConverterFlags flags,
|
|
gsize *bytes_read,
|
|
gsize *bytes_written,
|
|
GError **error)
|
|
{
|
|
if (!(flags & G_CONVERTER_INPUT_AT_END))
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PARTIAL_INPUT,
|
|
_("Need complete input to do conversion"));
|
|
return G_CONVERTER_ERROR;
|
|
}
|
|
|
|
if (g_str_equal (conv->encoding, "STRING") ||
|
|
g_str_equal (conv->encoding, "TEXT"))
|
|
{
|
|
GConverterResult result;
|
|
char *tmp, *latin1;
|
|
|
|
tmp = g_strndup (inbuf, inbuf_size);
|
|
latin1 = gdk_x11_utf8_to_string_target (tmp, TRUE);
|
|
g_free (tmp);
|
|
if (latin1)
|
|
{
|
|
result = write_output (outbuf, outbuf_size, bytes_written, latin1, -1, error);
|
|
g_free (latin1);
|
|
}
|
|
else
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA,
|
|
_("Invalid byte sequence in conversion input"));
|
|
result = G_CONVERTER_ERROR;
|
|
}
|
|
return result;
|
|
}
|
|
else if (g_str_equal (conv->encoding, "COMPOUND_TEXT"))
|
|
{
|
|
GConverterResult result;
|
|
guchar *text;
|
|
const char *encoding;
|
|
int format;
|
|
int new_length;
|
|
char *tmp;
|
|
|
|
tmp = g_strndup (inbuf, inbuf_size);
|
|
if (gdk_x11_display_utf8_to_compound_text (conv->display, tmp,
|
|
&encoding, &format, &text, &new_length))
|
|
{
|
|
if (g_str_equal (encoding, conv->encoding) &&
|
|
format == conv->format)
|
|
{
|
|
result = write_output (outbuf, outbuf_size, bytes_written, text, new_length, error);
|
|
}
|
|
else
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
|
|
_("Invalid formats in compound text conversion."));
|
|
result = G_CONVERTER_ERROR;
|
|
}
|
|
gdk_x11_free_compound_text (text);
|
|
}
|
|
else
|
|
{
|
|
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA,
|
|
_("Invalid byte sequence in conversion input"));
|
|
result = G_CONVERTER_ERROR;
|
|
}
|
|
g_free (tmp);
|
|
return result;
|
|
}
|
|
else
|
|
{
|
|
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
|
|
_("Unsupported encoding “%s”"), conv->encoding);
|
|
return G_CONVERTER_ERROR;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static GConverterResult
|
|
gdk_x11_text_list_converter_convert (GConverter *converter,
|
|
const void *inbuf,
|
|
gsize inbuf_size,
|
|
void *outbuf,
|
|
gsize outbuf_size,
|
|
GConverterFlags flags,
|
|
gsize *bytes_read,
|
|
gsize *bytes_written,
|
|
GError **error)
|
|
{
|
|
GdkX11TextListConverter *conv = GDK_X11_TEXT_LIST_CONVERTER (converter);
|
|
|
|
if (conv->encoder)
|
|
{
|
|
return gdk_x11_text_list_converter_encode (conv,
|
|
inbuf, inbuf_size,
|
|
outbuf, outbuf_size,
|
|
flags,
|
|
bytes_read, bytes_written,
|
|
error);
|
|
}
|
|
else
|
|
{
|
|
return gdk_x11_text_list_converter_decode (conv,
|
|
inbuf, inbuf_size,
|
|
outbuf, outbuf_size,
|
|
flags,
|
|
bytes_read, bytes_written,
|
|
error);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_x11_text_list_converter_reset (GConverter *converter)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_x11_text_list_converter_iface_init (GConverterIface *iface)
|
|
{
|
|
iface->convert = gdk_x11_text_list_converter_convert;
|
|
iface->reset = gdk_x11_text_list_converter_reset;
|
|
}
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GdkX11TextListConverter, gdk_x11_text_list_converter, G_TYPE_OBJECT,
|
|
G_IMPLEMENT_INTERFACE (G_TYPE_CONVERTER,
|
|
gdk_x11_text_list_converter_iface_init))
|
|
|
|
static void
|
|
gdk_x11_text_list_converter_finalize (GObject *object)
|
|
{
|
|
GdkX11TextListConverter *conv = GDK_X11_TEXT_LIST_CONVERTER (object);
|
|
|
|
g_object_unref (conv->display);
|
|
|
|
G_OBJECT_CLASS (gdk_x11_text_list_converter_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gdk_x11_text_list_converter_class_init (GdkX11TextListConverterClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
object_class->finalize = gdk_x11_text_list_converter_finalize;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_text_list_converter_init (GdkX11TextListConverter *local)
|
|
{
|
|
}
|
|
|
|
GConverter *
|
|
gdk_x11_text_list_converter_to_utf8_new (GdkDisplay *display,
|
|
const char *encoding,
|
|
int format)
|
|
{
|
|
GdkX11TextListConverter *conv;
|
|
|
|
conv = g_object_new (GDK_TYPE_X11_TEXT_LIST_CONVERTER, NULL);
|
|
|
|
conv->display = g_object_ref (display);
|
|
conv->encoding = g_intern_string (encoding);
|
|
conv->format = format;
|
|
|
|
return G_CONVERTER (conv);
|
|
}
|
|
|
|
GConverter *
|
|
gdk_x11_text_list_converter_from_utf8_new (GdkDisplay *display,
|
|
const char *encoding,
|
|
int format)
|
|
{
|
|
GdkX11TextListConverter *conv;
|
|
|
|
conv = g_object_new (GDK_TYPE_X11_TEXT_LIST_CONVERTER, NULL);
|
|
|
|
conv->display = g_object_ref (display);
|
|
conv->encoding = g_intern_string (encoding);
|
|
conv->format = format;
|
|
conv->encoder = TRUE;
|
|
|
|
return G_CONVERTER (conv);
|
|
}
|
|
|