BOOL xf_cliprdr_process_selection_request(xfInfo* xfi, XEvent* xevent)
{
int i;
int fmt;
Atom type;
UINT32 format;
XEvent* respond;
UINT32 alt_format;
BYTE* data = NULL;
BOOL delay_respond;
unsigned long length, bytes_left;
clipboardContext* cb = (clipboardContext*) xfi->clipboard_context;
DEBUG_X11_CLIPRDR("target=%d", (int) xevent->xselectionrequest.target);
if (xevent->xselectionrequest.owner != xfi->drawable)
{
DEBUG_X11_CLIPRDR("not owner");
return FALSE;
}
delay_respond = FALSE;
respond = (XEvent*) malloc(sizeof(XEvent));
ZeroMemory(respond, sizeof(XEvent));
respond->xselection.property = None;
respond->xselection.type = SelectionNotify;
respond->xselection.display = xevent->xselectionrequest.display;
respond->xselection.requestor = xevent->xselectionrequest.requestor;
respond->xselection.selection = xevent->xselectionrequest.selection;
respond->xselection.target = xevent->xselectionrequest.target;
respond->xselection.time = xevent->xselectionrequest.time;
if (xevent->xselectionrequest.target == cb->targets[0]) /* TIMESTAMP */
{
/* TODO */
DEBUG_X11_CLIPRDR("target: TIMESTAMP (unimplemented)");
}
else if (xevent->xselectionrequest.target == cb->targets[1]) /* TARGETS */
{
/* Someone else requests our available formats */
DEBUG_X11_CLIPRDR("target: TARGETS");
respond->xselection.property = xevent->xselectionrequest.property;
xf_cliprdr_provide_targets(xfi, respond);
}
else
{
DEBUG_X11_CLIPRDR("target: other");
i = xf_cliprdr_select_format_by_atom(cb, xevent->xselectionrequest.target);
if (i >= 0 && xevent->xselectionrequest.requestor != xfi->drawable)
{
format = cb->format_mappings[i].format_id;
alt_format = format;
if (format == CB_FORMAT_RAW)
{
if (XGetWindowProperty(xfi->display, xevent->xselectionrequest.requestor,
cb->property_atom, 0, 4, 0, XA_INTEGER,
&type, &fmt, &length, &bytes_left, &data) != Success)
{
DEBUG_X11_CLIPRDR("XGetWindowProperty failed");
}
if (data)
{
CopyMemory(&alt_format, data, 4);
XFree(data);
}
}
DEBUG_X11_CLIPRDR("provide format 0x%04x alt_format 0x%04x", format, alt_format);
if ((cb->data != 0) && (format == cb->data_format) && (alt_format == cb->data_alt_format))
{
/* Cached clipboard data available. Send it now */
respond->xselection.property = xevent->xselectionrequest.property;
xf_cliprdr_provide_data(xfi, respond);
}
else if (cb->respond)
{
DEBUG_X11_CLIPRDR("duplicated request");
}
else
{
/**
* Send clipboard data request to the server.
* Response will be postponed after receiving the data
*/
if (cb->data)
{
free(cb->data);
cb->data = NULL;
}
respond->xselection.property = xevent->xselectionrequest.property;
cb->respond = respond;
cb->data_format = format;
cb->data_alt_format = alt_format;
delay_respond = TRUE;
xf_cliprdr_send_data_request(xfi, alt_format);
}
}
}
if (delay_respond == FALSE)
{
XSendEvent(xfi->display, xevent->xselectionrequest.requestor, 0, 0, respond);
XFlush(xfi->display);
free(respond);
}
return TRUE;
}
boolean xf_cliprdr_process_selection_request(xfInfo* xfi, XEvent* xevent)
{
int i;
int fmt;
Atom type;
uint32 format;
XEvent* respond;
uint32 alt_format;
uint8* data = NULL;
boolean delay_respond;
unsigned long len, bytes_left;
clipboardContext* cb = (clipboardContext*) xfi->clipboard_context;
DEBUG_X11("target=%d", (int)xevent->xselectionrequest.target);
if (xevent->xselectionrequest.owner != xfi->window->handle)
{
DEBUG_X11("not owner");
return False;
}
delay_respond = False;
respond = xnew(XEvent);
respond->xselection.property = None;
respond->xselection.type = SelectionNotify;
respond->xselection.display = xevent->xselectionrequest.display;
respond->xselection.requestor = xevent->xselectionrequest.requestor;
respond->xselection.selection = xevent->xselectionrequest.selection;
respond->xselection.target = xevent->xselectionrequest.target;
respond->xselection.time = xevent->xselectionrequest.time;
if (xevent->xselectionrequest.target == cb->targets[0]) /* TIMESTAMP */
{
/* TODO */
}
else if (xevent->xselectionrequest.target == cb->targets[1]) /* TARGETS */
{
/* Someone else requests our available formats */
respond->xselection.property = xevent->xselectionrequest.property;
xf_cliprdr_provide_targets(xfi, respond);
}
else
{
i = xf_cliprdr_select_format_by_atom(cb, xevent->xselectionrequest.target);
if (i >= 0 && xevent->xselectionrequest.requestor != xfi->window->handle)
{
format = cb->format_mappings[i].format_id;
alt_format = format;
if (format == CB_FORMAT_RAW)
{
if (XGetWindowProperty(xfi->display, xevent->xselectionrequest.requestor,
cb->property_atom, 0, 4, 0, XA_INTEGER,
&type, &fmt, &len, &bytes_left, &data) != Success)
{
DEBUG_X11("XGetWindowProperty failed");
}
if (data)
{
memcpy(&alt_format, data, 4);
XFree(data);
}
}
DEBUG_X11("provide format 0x%04x alt_format 0x%04x", format, alt_format);
if (cb->data != 0 &&
format == cb->data_format &&
alt_format == cb->data_alt_format)
{
/* Cached clipboard data available. Send it now */
respond->xselection.property = xevent->xselectionrequest.property;
xf_cliprdr_provide_data(xfi, respond);
}
else if (cb->respond)
{
DEBUG_X11("duplicated request");
}
else
{
/**
* Send clipboard data request to the server.
* Response will be postponed after receiving the data
*/
if (cb->data)
{
xfree(cb->data);
cb->data = NULL;
}
respond->xselection.property = xevent->xselectionrequest.property;
cb->respond = respond;
cb->data_format = format;
cb->data_alt_format = alt_format;
delay_respond = True;
xf_cliprdr_send_data_request(xfi, alt_format);
}
}
}
if (!delay_respond)
{
XSendEvent(xfi->display, xevent->xselectionrequest.requestor, 0, 0, respond);
XFlush(xfi->display);
xfree(respond);
}
return True;
}
