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Support the clipboard INCR protocol: Applied patch from Burt Holzman.

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git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@912 423420c4-83ab-492f-b58f-81f9feb106b5
This commit is contained in:
Peter Åstrand 2005-06-27 12:18:48 +00:00
parent 900efb873c
commit 27acca1127
1 changed files with 91 additions and 2 deletions
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91
xclip.c
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@ -36,6 +36,9 @@ static Atom targets[NUM_TARGETS];
static int have_primary = 0;
static int rdesktop_is_selection_owner = 0;
static int g_waiting_for_INCR = 0;
static uint8 *g_clip_buffer = 0;
static uint32 g_clip_buflen = 0;
/* Replace CR-LF to LF (well, rather removing all CR:s) This is done
in-place. The length is updated. Handles embedded nulls */
@ -105,6 +108,7 @@ void
xclip_handle_SelectionNotify(XSelectionEvent * event)
{
unsigned long nitems, bytes_left;
XWindowAttributes wa;
Atom type, best_target, text_target;
Atom *supported_targets;
int res, i, format;
@ -161,9 +165,40 @@ xclip_handle_SelectionNotify(XSelectionEvent * event)
if (type == incr_atom)
{
warning("We don't support INCR transfers at this time. Try cutting less data.\n");
DEBUG_CLIPBOARD(("Received INCR.\n"));
XGetWindowAttributes(g_display, g_wnd, &wa);
if ((wa.your_event_mask | PropertyChangeMask) != wa.your_event_mask)
{
XSelectInput(g_display, g_wnd, (wa.your_event_mask | PropertyChangeMask));
}
XDeleteProperty(g_display, g_wnd, type);
XFree(data);
g_waiting_for_INCR = 1;
if ((XGetWindowProperty(g_display, g_wnd, rdesktop_clipboard_target_atom, 0,
4096L, True, AnyPropertyType,
&type, &format, &nitems, &bytes_left, &data) != Success))
{
DEBUG_CLIPBOARD(("XGetWindowProperty failed.\n"));
goto fail;
}
else
{
uint8 *translated_data;
uint32 length = nitems;
translated_data = lf2crlf(data, &length);
g_clip_buffer = (uint8 *) xmalloc(length);
strncpy(g_clip_buffer, translated_data, length);
xfree(translated_data);
g_clip_buflen = length;
XFree(data);
return;
}
}
/* Translate linebreaks, but only if not getting data from
other rdesktop instance */
@ -248,9 +283,63 @@ xclip_handle_PropertyNotify(XPropertyEvent * event)
{
unsigned long nitems, bytes_left;
int format, res;
XWindowAttributes wa;
uint8 *data;
Atom type;
if (event->state == PropertyNewValue && g_waiting_for_INCR)
{
DEBUG_CLIPBOARD(("x_clip_handle_PropertyNotify: g_waiting_for_INCR != 0\n"));
if ((XGetWindowProperty(g_display, g_wnd, rdesktop_clipboard_target_atom, 0,
4096L, True, AnyPropertyType,
&type, &format, &nitems, &bytes_left, &data) != Success))
{
XFree(data);
return;
}
if (nitems == 0)
{
XGetWindowAttributes(g_display, g_wnd, &wa);
XSelectInput(g_display, g_wnd, (wa.your_event_mask ^ PropertyChangeMask));
XFree(data);
g_waiting_for_INCR = 0;
if (g_clip_buflen > 0)
{
cliprdr_send_data(g_clip_buffer, g_clip_buflen + 1);
if (!rdesktop_is_selection_owner)
cliprdr_send_text_format_announce();
xfree(g_clip_buffer);
g_clip_buffer = 0;
g_clip_buflen = 0;
}
}
else
{
uint8 *translated_data;
uint32 length = nitems;
DEBUG_CLIPBOARD(("Translating linebreaks before sending data\n"));
translated_data = lf2crlf(data, &length);
uint8 *tmp = xmalloc(length + g_clip_buflen);
strncpy(tmp, g_clip_buffer, g_clip_buflen);
xfree(g_clip_buffer);
strncpy(tmp + g_clip_buflen, translated_data, length);
xfree(translated_data);
g_clip_buffer = tmp;
g_clip_buflen += length;
XFree(data);
return;
}
}
if (event->atom != rdesktop_clipboard_formats_atom)
return;