diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbwmsupport.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbwmsupport.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbwmsupport.cpp b/src/plugins/platforms/xcb/qxcbwmsupport.cpp new file mode 100644 index 0000000000..5fb67b6377 --- /dev/null +++ b/src/plugins/platforms/xcb/qxcbwmsupport.cpp @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qxcbwmsupport.h" +#include "qxcbscreen.h" + +#include <qdebug.h> + +QXcbWMSupport::QXcbWMSupport(QXcbConnection *c) + : QXcbObject(c) +{ + updateNetWMAtoms(); + updateVirtualRoots(); +} + +bool QXcbWMSupport::isSupportedByWM(xcb_atom_t atom) const +{ + return net_wm_atoms.contains(atom); +} + + + +void QXcbWMSupport::updateNetWMAtoms() +{ + net_wm_atoms.clear(); + + xcb_window_t root = connection()->screens().at(connection()->primaryScreen())->root(); + int offset = 0; + int remaining = 0; + do { + xcb_generic_error_t *error = 0; + xcb_get_property_cookie_t cookie = xcb_get_property(xcb_connection(), false, root, atom(QXcbAtom::_NET_SUPPORTED), XCB_ATOM_ATOM, offset, 1024); + xcb_get_property_reply_t *reply = xcb_get_property_reply(xcb_connection(), cookie, &error); + if (!reply || error) + break; + + remaining = 0; + + if (reply->type == XCB_ATOM_ATOM && reply->format == 32) { + int len = xcb_get_property_value_length(reply)/4; + xcb_atom_t *atoms = (xcb_atom_t *)xcb_get_property_value(reply); + int s = net_wm_atoms.size(); + net_wm_atoms.resize(s + len); + memcpy(net_wm_atoms.data() + s, atoms, len*sizeof(xcb_atom_t)); + + remaining = reply->bytes_after; + offset += len; + } + + free(reply); + } while (remaining > 0); + +// qDebug() << "======== updateNetWMAtoms"; +// for (int i = 0; i < net_wm_atoms.size(); ++i) +// qDebug() << atomName(net_wm_atoms.at(i)); +// qDebug() << "======== updateNetWMAtoms"; +} + +// update the virtual roots array +void QXcbWMSupport::updateVirtualRoots() +{ + net_virtual_roots.clear(); + + if (!isSupportedByWM(atom(QXcbAtom::_NET_VIRTUAL_ROOTS))) + return; + + xcb_window_t root = connection()->screens().at(connection()->primaryScreen())->root(); + int offset = 0; + int remaining = 0; + do { + xcb_generic_error_t *error = 0; + xcb_get_property_cookie_t cookie = xcb_get_property(xcb_connection(), false, root, atom(QXcbAtom::_NET_VIRTUAL_ROOTS), XCB_ATOM_ATOM, offset, 1024); + xcb_get_property_reply_t *reply = xcb_get_property_reply(xcb_connection(), cookie, &error); + if (!reply || error) + break; + + remaining = 0; + + if (reply->type == XCB_ATOM_ATOM && reply->format == 32) { + int len = xcb_get_property_value_length(reply)/4; + xcb_atom_t *atoms = (xcb_atom_t *)xcb_get_property_value(reply); + int s = net_wm_atoms.size(); + net_wm_atoms.resize(s + len); + memcpy(net_wm_atoms.data() + s, atoms, len*sizeof(xcb_atom_t)); + + remaining = reply->bytes_after; + offset += len; + } + + free(reply); + } while (remaining > 0); + + qDebug() << "======== updateVirtualRoots"; + for (int i = 0; i < net_virtual_roots.size(); ++i) + qDebug() << connection()->atomName(net_virtual_roots.at(i)); + qDebug() << "======== updateVirtualRoots"; +} + |