xcb: Merge _NET_WM_STATE hints instead of overwriting

This makes possible to set custom _NET_WM_STATE hints before
showing the window.

Change-Id: I86ad3863f7a8b3bb610a31b9af4b02c9d38eb111
Task-number: QTBUG-26978
Reviewed-by: Ilya Kotov
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
David Rosca 2016-03-16 08:35:22 +01:00
parent 458bf6b858
commit e4cea305ed

View File

@ -1091,21 +1091,37 @@ QXcbWindow::NetWmStates QXcbWindow::netWmStates()
void QXcbWindow::setNetWmStates(NetWmStates states)
{
QVector<xcb_atom_t> atoms;
if (states & NetWmStateAbove)
xcb_get_property_cookie_t get_cookie =
xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
XCB_ATOM_ATOM, 0, 1024);
xcb_get_property_reply_t *reply =
xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM && reply->value_len > 0) {
const xcb_atom_t *data = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
atoms.resize(reply->value_len);
memcpy((void *)&atoms.first(), (void *)data, reply->value_len * sizeof(xcb_atom_t));
}
free(reply);
if (states & NetWmStateAbove && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
if (states & NetWmStateBelow)
if (states & NetWmStateBelow && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_BELOW)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
if (states & NetWmStateFullScreen)
if (states & NetWmStateFullScreen && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
if (states & NetWmStateMaximizedHorz)
if (states & NetWmStateMaximizedHorz && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
if (states & NetWmStateMaximizedVert)
if (states & NetWmStateMaximizedVert && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
if (states & NetWmStateModal)
if (states & NetWmStateModal && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_MODAL)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
if (states & NetWmStateStaysOnTop)
if (states & NetWmStateStaysOnTop && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
if (states & NetWmStateDemandsAttention)
if (states & NetWmStateDemandsAttention && !atoms.contains(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
if (atoms.isEmpty()) {