bool QClipboard::event(QEvent *e)
{
if (e->type() == QEvent::Timer) {
QTimerEvent *te = (QTimerEvent *) e;
if (waiting_for_data) // should never happen
return false;
if (te->timerId() == timer_id) {
killTimer(timer_id);
timer_id = 0;
timer_event_clear = true;
if (selection_watcher) // clear selection
selectionData()->clear();
if (clipboard_watcher) // clear clipboard
clipboardData()->clear();
timer_event_clear = false;
return true;
} else if (te->timerId() == pending_timer_id) {
// I hate klipper
killTimer(pending_timer_id);
pending_timer_id = 0;
if (pending_clipboard_changed) {
pending_clipboard_changed = false;
clipboardData()->clear();
emitChanged(QClipboard::Clipboard);
}
if (pending_selection_changed) {
pending_selection_changed = false;
selectionData()->clear();
emitChanged(QClipboard::Selection);
}
return true;
} else if (te->timerId() == incr_timer_id) {
killTimer(incr_timer_id);
incr_timer_id = 0;
qt_xclb_incr_timeout();
return true;
} else {
return QObject::event(e);
}
} else if (e->type() != QEvent::Clipboard) {
return QObject::event(e);
}
XEvent *xevent = (XEvent *)(((QClipboardEvent *)e)->data());
Display *dpy = X11->display;
if (!xevent) {
// That means application exits and we need to give clipboard
// content to the clipboard manager.
// First we check if there is a clipboard manager.
if (XGetSelectionOwner(X11->display, ATOM(CLIPBOARD_MANAGER)) == XNone
|| !owner)
return true;
Window ownerId = owner->internalWinId();
Q_ASSERT(ownerId);
// we delete the property so the manager saves all TARGETS.
XDeleteProperty(X11->display, ownerId, ATOM(_QT_SELECTION));
XConvertSelection(X11->display, ATOM(CLIPBOARD_MANAGER), ATOM(SAVE_TARGETS),
ATOM(_QT_SELECTION), ownerId, X11->time);
XSync(dpy, false);
XEvent event;
// waiting until the clipboard manager fetches the content.
if (!X11->clipboardWaitForEvent(ownerId, SelectionNotify, &event, 10000)) {
qWarning("QClipboard: Unable to receive an event from the "
"clipboard manager in a reasonable time");
}
return true;
}
switch (xevent->type) {
case SelectionClear:
// new selection owner
if (xevent->xselectionclear.selection == XA_PRIMARY) {
QClipboardData *d = selectionData();
// ignore the event if it was generated before we gained selection ownership
if (d->timestamp != CurrentTime && xevent->xselectionclear.time <= d->timestamp)
break;
DEBUG("QClipboard: new selection owner 0x%lx at time %lx (ours %lx)",
XGetSelectionOwner(dpy, XA_PRIMARY),
xevent->xselectionclear.time, d->timestamp);
if (! waiting_for_data) {
d->clear();
emitChanged(QClipboard::Selection);
} else {
pending_selection_changed = true;
if (! pending_timer_id)
pending_timer_id = QApplication::clipboard()->startTimer(0);
}
} else if (xevent->xselectionclear.selection == ATOM(CLIPBOARD)) {
QClipboardData *d = clipboardData();
// ignore the event if it was generated before we gained selection ownership
if (d->timestamp != CurrentTime && xevent->xselectionclear.time <= d->timestamp)
break;
DEBUG("QClipboard: new clipboard owner 0x%lx at time %lx (%lx)",
XGetSelectionOwner(dpy, ATOM(CLIPBOARD)),
xevent->xselectionclear.time, d->timestamp);
if (! waiting_for_data) {
d->clear();
emitChanged(QClipboard::Clipboard);
} else {
pending_clipboard_changed = true;
if (! pending_timer_id)
pending_timer_id = QApplication::clipboard()->startTimer(0);
}
} else {
qWarning("QClipboard: Unknown SelectionClear event received");
return false;
}
break;
case SelectionNotify:
/*
Something has delivered data to us, but this was not caught
by QClipboardWatcher::getDataInFormat()
Just skip the event to prevent Bad Things (tm) from
happening later on...
*/
break;
case SelectionRequest:
{
// someone wants our data
XSelectionRequestEvent *req = &xevent->xselectionrequest;
if (requestor && req->requestor == requestor->internalWinId())
break;
XEvent event;
event.xselection.type = SelectionNotify;
event.xselection.display = req->display;
event.xselection.requestor = req->requestor;
event.xselection.selection = req->selection;
event.xselection.target = req->target;
event.xselection.property = XNone;
event.xselection.time = req->time;
DEBUG("QClipboard: SelectionRequest from %lx\n"
" selection 0x%lx (%s) target 0x%lx (%s)",
req->requestor,
req->selection,
X11->xdndAtomToString(req->selection).data(),
req->target,
X11->xdndAtomToString(req->target).data());
QClipboardData *d;
if (req->selection == XA_PRIMARY) {
d = selectionData();
} else if (req->selection == ATOM(CLIPBOARD)) {
d = clipboardData();
} else {
qWarning("QClipboard: Unknown selection '%lx'", req->selection);
XSendEvent(dpy, req->requestor, False, NoEventMask, &event);
break;
}
if (! d->source()) {
qWarning("QClipboard: Cannot transfer data, no data available");
XSendEvent(dpy, req->requestor, False, NoEventMask, &event);
break;
}
DEBUG("QClipboard: SelectionRequest at time %lx (ours %lx)",
req->time, d->timestamp);
if (d->timestamp == CurrentTime // we don't own the selection anymore
|| (req->time != CurrentTime && req->time < d->timestamp)) {
DEBUG("QClipboard: SelectionRequest too old");
XSendEvent(dpy, req->requestor, False, NoEventMask, &event);
break;
}
Atom xa_targets = ATOM(TARGETS);
Atom xa_multiple = ATOM(MULTIPLE);
Atom xa_timestamp = ATOM(TIMESTAMP);
struct AtomPair { Atom target; Atom property; } *multi = 0;
Atom multi_type = XNone;
int multi_format = 0;
int nmulti = 0;
int imulti = -1;
bool multi_writeback = false;
if (req->target == xa_multiple) {
QByteArray multi_data;
if (req->property == XNone
|| !X11->clipboardReadProperty(req->requestor, req->property, false, &multi_data,
0, &multi_type, &multi_format)
|| multi_format != 32) {
// MULTIPLE property not formatted correctly
XSendEvent(dpy, req->requestor, False, NoEventMask, &event);
break;
}
nmulti = multi_data.size()/sizeof(*multi);
multi = new AtomPair[nmulti];
memcpy(multi,multi_data.data(),multi_data.size());
imulti = 0;
}
for (; imulti < nmulti; ++imulti) {
Atom target;
Atom property;
if (multi) {
target = multi[imulti].target;
property = multi[imulti].property;
} else {
target = req->target;
property = req->property;
if (property == XNone) // obsolete client
property = target;
}
Atom ret = XNone;
if (target == XNone || property == XNone) {
;
} else if (target == xa_timestamp) {
if (d->timestamp != CurrentTime) {
XChangeProperty(dpy, req->requestor, property, XA_INTEGER, 32,
PropModeReplace, (uchar *) &d->timestamp, 1);
ret = property;
} else {
qWarning("QClipboard: Invalid data timestamp");
}
} else if (target == xa_targets) {
ret = send_targets_selection(d, req->requestor, property);
} else {
ret = send_selection(d, target, req->requestor, property);
}
if (nmulti > 0) {
if (ret == XNone) {
multi[imulti].property = XNone;
multi_writeback = true;
}
} else {
event.xselection.property = ret;
break;
}
}
if (nmulti > 0) {
if (multi_writeback) {
// according to ICCCM 2.6.2 says to put None back
// into the original property on the requestor window
XChangeProperty(dpy, req->requestor, req->property, multi_type, 32,
PropModeReplace, (uchar *) multi, nmulti * 2);
}
delete [] multi;
event.xselection.property = req->property;
}
// send selection notify to requestor
XSendEvent(dpy, req->requestor, False, NoEventMask, &event);
DEBUG("QClipboard: SelectionNotify to 0x%lx\n"
" property 0x%lx (%s)",
req->requestor, event.xselection.property,
X11->xdndAtomToString(event.xselection.property).data());
}
break;
}
return true;
}
void handle_event(XEvent *ev)
{
switch(ev->type){
CASE_EVENT(MapRequest)
handle_map_request(&(ev->xmaprequest));
break;
CASE_EVENT(ConfigureRequest)
handle_configure_request(&(ev->xconfigurerequest));
break;
CASE_EVENT(UnmapNotify)
handle_unmap_notify(&(ev->xunmap));
break;
CASE_EVENT(DestroyNotify)
handle_destroy_notify(&(ev->xdestroywindow));
break;
CASE_EVENT(ClientMessage)
handle_client_message(&(ev->xclient));
break;
CASE_EVENT(PropertyNotify)
handle_property(&(ev->xproperty));
break;
CASE_EVENT(FocusIn)
handle_focus_in(&(ev->xfocus));
break;
CASE_EVENT(FocusOut)
handle_focus_out(&(ev->xfocus));
break;
CASE_EVENT(EnterNotify)
handle_enter_window(ev);
break;
CASE_EVENT(Expose)
handle_expose(&(ev->xexpose));
break;
CASE_EVENT(KeyPress)
assert(wglobal.input_handler!=NULL);
assert(wglobal.input_handler->keyboard!=NULL);
wglobal.input_handler->keyboard(ev);
break;
CASE_EVENT(KeyRelease)
assert(wglobal.input_handler!=NULL);
assert(wglobal.input_handler->keyboard!=NULL);
wglobal.input_handler->keyboard(ev);
break;
CASE_EVENT(ButtonPress)
assert(wglobal.input_handler!=NULL);
if(wglobal.input_handler->pointer!=NULL)
wglobal.input_handler->pointer(ev);
break;
CASE_EVENT(ColormapNotify)
handle_colormap_notify(&(ev->xcolormap));
break;
CASE_EVENT(MappingNotify)
XRefreshKeyboardMapping(&(ev->xmapping));
update_modmap();
break;
CASE_EVENT(SelectionClear)
clear_selection();
break;
CASE_EVENT(SelectionNotify)
receive_selection(&(ev->xselection));
break;
CASE_EVENT(SelectionRequest)
send_selection(&(ev->xselectionrequest));
break;
}
}
