/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include <string.h>
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkproperty.h"
#include "gdkselection.h"
#include "gdkprivate.h"
#include "gdkalias.h"
typedef struct _OwnerInfo OwnerInfo;
struct _OwnerInfo
{
GdkAtom selection;
GdkWindow *owner;
};
GSList *owner_list = NULL;
/* When a window is destroyed we check if it is the owner
* of any selections. This is somewhat inefficient, but
* owner_list is typically short, and it is a low memory,
* low code solution
*/
void
_gdk_selection_window_destroyed (GdkWindow *window)
{
GSList *tmp_list = owner_list;
while (tmp_list)
{
OwnerInfo *info = tmp_list->data;
tmp_list = tmp_list->next;
if (info->owner == window)
{
owner_list = g_slist_remove (owner_list, info);
g_free (info);
}
}
}
gint
gdk_selection_owner_set_for_display (GdkDisplay *display,
GdkWindow *owner,
GdkAtom selection,
guint32 time,
gint send_event)
{
GSList *tmp_list;
OwnerInfo *info;
tmp_list = owner_list;
while (tmp_list)
{
info = tmp_list->data;
if (info->selection == selection)
{
owner_list = g_slist_remove (owner_list, info);
g_free (info);
break;
}
tmp_list = tmp_list->next;
}
if (owner)
{
info = g_new (OwnerInfo, 1);
info->owner = owner;
info->selection = selection;
owner_list = g_slist_prepend (owner_list, info);
}
return TRUE;
}
GdkWindow *
gdk_selection_owner_get_for_display (GdkDisplay *display,
GdkAtom selection)
{
OwnerInfo *info;
GSList *tmp_list;
tmp_list = owner_list;
while (tmp_list)
{
info = tmp_list->data;
if (info->selection == selection)
{
return info->owner;
}
tmp_list = tmp_list->next;
}
return NULL;
}
void
gdk_selection_convert (GdkWindow *requestor,
GdkAtom selection,
GdkAtom target,
guint32 time)
{
GdkEvent *event;
GdkWindow *owner;
GdkWindow *event_window;
owner = gdk_selection_owner_get (selection);
if (owner)
{
event_window = gdk_directfb_other_event_window (owner,
GDK_SELECTION_REQUEST);
if (event_window)
{
event = gdk_directfb_event_make (event_window,
GDK_SELECTION_REQUEST);
event->selection.requestor = GDK_WINDOW_DFB_ID (requestor);
event->selection.selection = selection;
event->selection.target = target;
event->selection.property = _gdk_selection_property;
}
}
else
{
/* If no owner for the specified selection exists, the X server
* generates a SelectionNotify event to the requestor with property None.
*/
gdk_selection_send_notify (GDK_WINDOW_DFB_ID (requestor),
selection,
target,
GDK_NONE,
0);
}
}
gint
gdk_selection_property_get (GdkWindow *requestor,
guchar **data,
GdkAtom *ret_type,
gint *ret_format)
{
guchar *t = NULL;
GdkAtom prop_type;
gint prop_format;
gint prop_len;
g_return_val_if_fail (requestor != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (requestor), 0);
if (!gdk_property_get (requestor,
_gdk_selection_property,
0/*AnyPropertyType?*/,
0, 0,
FALSE,
&prop_type, &prop_format, &prop_len,
&t))
{
*data = NULL;
return 0;
}
if (ret_type)
*ret_type = prop_type;
if (ret_format)
*ret_format = prop_format;
if (!gdk_property_get (requestor,
_gdk_selection_property,
0/*AnyPropertyType?*/,
0, prop_len + 1,
FALSE,
&prop_type, &prop_format, &prop_len,
&t))
{
*data = NULL;
return 0;
}
*data = t;
return prop_len;
}
void
gdk_selection_send_notify_for_display (GdkDisplay *display,
guint32 requestor,
GdkAtom selection,
GdkAtom target,
GdkAtom property,
guint32 time)
{
GdkEvent *event;
GdkWindow *event_window;
event_window = gdk_window_lookup ((GdkNativeWindow) requestor);
if (!event_window)
return;
event_window = gdk_directfb_other_event_window (event_window,
GDK_SELECTION_NOTIFY);
if (event_window)
{
event = gdk_directfb_event_make (event_window, GDK_SELECTION_NOTIFY);
event->selection.selection = selection;
event->selection.target = target;
event->selection.property = property;
event->selection.requestor = (GdkNativeWindow) requestor;
}
}
gint
gdk_text_property_to_text_list_for_display (GdkDisplay *display,
GdkAtom encoding,
gint format,
const guchar *text,
gint length,
gchar ***list)
{
g_warning ("gdk_text_property_to_text_list() not implemented\n");
return 0;
}
void
gdk_free_text_list (gchar **list)
{
g_return_if_fail (list != NULL);
g_warning ("gdk_free_text_list() not implemented\n");
}
gint
gdk_string_to_compound_text_for_display (GdkDisplay *display,
const gchar *str,
GdkAtom *encoding,
gint *format,
guchar **ctext,
gint *length)
{
g_warning ("gdk_string_to_compound_text() not implemented\n");
return 0;
}
void
gdk_free_compound_text (guchar *ctext)
{
g_warning ("gdk_free_compound_text() not implemented\n");
}
/**
* gdk_utf8_to_string_target:
* @str: a UTF-8 string
*
* Convert an UTF-8 string into the best possible representation
* as a STRING. The representation of characters not in STRING
* is not specified; it may be as pseudo-escape sequences
* \x{ABCD}, or it may be in some other form of approximation.
*
* Return value: the newly allocated string, or %NULL if the
* conversion failed. (It should not fail for
* any properly formed UTF-8 string.)
**/
gchar *
gdk_utf8_to_string_target (const gchar *str)
{
g_warning ("gdk_utf8_to_string_target() not implemented\n");
return 0;
}
/**
* gdk_utf8_to_compound_text:
* @str: a UTF-8 string
* @encoding: location to store resulting encoding
* @format: location to store format of the result
* @ctext: location to store the data of the result
* @length: location to store the length of the data
* stored in @ctext
*
* Convert from UTF-8 to compound text.
*
* Return value: %TRUE if the conversion succeeded, otherwise
* false.
**/
gboolean
gdk_utf8_to_compound_text_for_display (GdkDisplay *display,
const gchar *str,
GdkAtom *encoding,
gint *format,
guchar **ctext,
gint *length)
{
g_warning ("gdk_utf8_to_compound_text() not implemented\n");
return 0;
}
static gint
make_list (const gchar *text,
gint length,
gboolean latin1,
gchar ***list)
{
GSList *strings = NULL;
gint n_strings = 0;
gint i;
const gchar *p = text;
const gchar *q;
GSList *tmp_list;
GError *error = NULL;
while (p < text + length)
{
gchar *str;
q = p;
while (*q && q < text + length)
q++;
if (latin1)
{
str = g_convert (p, q - p,
"UTF-8", "ISO-8859-1",
NULL, NULL, &error);
if (!str)
{
g_warning ("Error converting selection from STRING: %s",
error->message);
g_error_free (error);
}
}
else
str = g_strndup (p, q - p);
if (str)
{
strings = g_slist_prepend (strings, str);
n_strings++;
}
p = q + 1;
}
if (list)
*list = g_new (gchar *, n_strings + 1);
(*list)[n_strings] = NULL;
i = n_strings;
tmp_list = strings;
while (tmp_list)
{
if (list)
(*list)[--i] = tmp_list->data;
else
g_free (tmp_list->data);
tmp_list = tmp_list->next;
}
g_slist_free (strings);
return n_strings;
}
/**
* gdk_text_property_to_utf8_list:
* @encoding: an atom representing the encoding of the text
* @format: the format of the property
* @text: the text to convert
* @length: the length of @text, in bytes
* @list: location to store the list of strings or %NULL. The
* list should be freed with g_strfreev().
*
* Convert a text property in the giving encoding to
* a list of UTF-8 strings.
*
* Return value: the number of strings in the resulting
* list.
**/
gint
gdk_text_property_to_utf8_list_for_display (GdkDisplay *display,
GdkAtom encoding,
gint format,
const guchar *text,
gint length,
gchar ***list)
{
g_return_val_if_fail (text != NULL, 0);
g_return_val_if_fail (length >= 0, 0);
if (encoding == GDK_TARGET_STRING)
{
return make_list ((gchar *)text, length, TRUE, list);
}
else if (encoding == gdk_atom_intern ("UTF8_STRING", FALSE))
{
return make_list ((gchar *)text, length, FALSE, list);
}
else
{
gchar **local_list;
gint local_count;
gint i;
const gchar *charset = NULL;
gboolean need_conversion = !g_get_charset (&charset);
gint count = 0;
GError *error = NULL;
/* Probably COMPOUND text, we fall back to Xlib routines
*/
local_count = gdk_text_property_to_text_list (encoding,
format,
text,
length,
&local_list);
if (list)
*list = g_new (gchar *, local_count + 1);
for (i = 0; i < local_count; i++)
{
/* list contains stuff in our default encoding
*/
if (need_conversion)
{
gchar *utf = g_convert (local_list[i], -1,
"UTF-8", charset,
NULL, NULL, &error);
if (utf)
{
if (list)
(*list)[count++] = utf;
else
g_free (utf);
}
else
{
g_warning ("Error converting to UTF-8 from '%s': %s",
charset, error->message);
g_error_free (error);
error = NULL;
}
}
else
{
if (list)
(*list)[count++] = g_strdup (local_list[i]);
}
}
gdk_free_text_list (local_list);
(*list)[count] = NULL;
return count;
}
}
#define __GDK_SELECTION_X11_C__
#include "gdkaliasdef.c"