1075 lines
39 KiB
C++
1075 lines
39 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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/*
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This file contains things relevant to window grouping.
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*/
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//#define QT_CLEAN_NAMESPACE
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#include "group.h"
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#include <QTextStream>
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#include "workspace.h"
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#include "client.h"
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#include "effects.h"
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#include <assert.h>
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#include <kstartupinfo.h>
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#include <KWindowSystem>
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#include <QDebug>
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/*
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TODO
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Rename as many uses of 'transient' as possible (hasTransient->hasSubwindow,etc.),
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or I'll get it backwards in half of the cases again.
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*/
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namespace KWin
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{
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/*
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Consistency checks for window relations. Since transients are determined
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using Client::transiency_list and main windows are determined using Client::transientFor()
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or the group for group transients, these have to match both ways.
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*/
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//#define ENABLE_TRANSIENCY_CHECK
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#ifdef NDEBUG
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#undef ENABLE_TRANSIENCY_CHECK
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#endif
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#ifdef ENABLE_TRANSIENCY_CHECK
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static bool transiencyCheckNonExistent = false;
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bool performTransiencyCheck()
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{
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bool ret = true;
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ClientList clients = Workspace::self()->clients;
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for (ClientList::ConstIterator it1 = clients.constBegin();
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it1 != clients.constEnd();
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++it1) {
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if ((*it1)->deleting)
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continue;
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if ((*it1)->in_group == NULL) {
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qCDebug(KWIN_CORE) << "TC: " << *it1 << " in not in a group" << endl;
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ret = false;
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} else if (!(*it1)->in_group->members().contains(*it1)) {
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qCDebug(KWIN_CORE) << "TC: " << *it1 << " has a group " << (*it1)->in_group << " but group does not contain it" << endl;
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ret = false;
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}
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if (!(*it1)->isTransient()) {
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if (!(*it1)->mainClients().isEmpty()) {
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qCDebug(KWIN_CORE) << "TC: " << *it1 << " is not transient, has main clients:" << (*it1)->mainClients() << endl;
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ret = false;
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}
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} else {
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ClientList mains = (*it1)->mainClients();
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for (ClientList::ConstIterator it2 = mains.constBegin();
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it2 != mains.constEnd();
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++it2) {
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if (transiencyCheckNonExistent
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&& !Workspace::self()->clients.contains(*it2)
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&& !Workspace::self()->desktops.contains(*it2)) {
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qCDebug(KWIN_CORE) << "TC:" << *it1 << " has non-existent main client ";
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qCDebug(KWIN_CORE) << "TC2:" << *it2; // this may crash
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ret = false;
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continue;
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}
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if (!(*it2)->transients_list.contains(*it1)) {
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kdDebug(1212) << "TC:" << *it1 << " has main client " << *it2 << " but main client does not have it as a transient" << endl;
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ret = false;
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}
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}
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}
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ClientList trans = (*it1)->transients_list;
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for (ClientList::ConstIterator it2 = trans.constBegin();
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it2 != trans.constEnd();
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++it2) {
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if (transiencyCheckNonExistent
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&& !Workspace::self()->clients.contains(*it2)
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&& !Workspace::self()->desktops.contains(*it2)) {
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qCDebug(KWIN_CORE) << "TC:" << *it1 << " has non-existent transient ";
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qCDebug(KWIN_CORE) << "TC2:" << *it2; // this may crash
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ret = false;
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continue;
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}
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if (!(*it2)->mainClients().contains(*it1)) {
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kdDebug(1212) << "TC:" << *it1 << " has transient " << *it2 << " but transient does not have it as a main client" << endl;
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ret = false;
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}
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}
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}
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GroupList groups = Workspace::self()->groups;
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for (GroupList::ConstIterator it1 = groups.constBegin();
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it1 != groups.constEnd();
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++it1) {
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ClientList members = (*it1)->members();
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for (ClientList::ConstIterator it2 = members.constBegin();
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it2 != members.constEnd();
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++it2) {
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if ((*it2)->in_group != *it1) {
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qCDebug(KWIN_CORE) << "TC: Group " << *it1 << " contains client " << *it2 << " but client is not in that group" << endl;
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ret = false;
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}
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}
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}
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return ret;
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}
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static QString transiencyCheckStartBt;
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static const Client* transiencyCheckClient;
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static int transiencyCheck = 0;
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static void startTransiencyCheck(const QString& bt, const Client* c, bool ne)
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{
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if (++transiencyCheck == 1) {
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transiencyCheckStartBt = bt;
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transiencyCheckClient = c;
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}
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if (ne)
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transiencyCheckNonExistent = true;
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}
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static void checkTransiency()
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{
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if (--transiencyCheck == 0) {
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if (!performTransiencyCheck()) {
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qCDebug(KWIN_CORE) << "BT:" << transiencyCheckStartBt << endl;
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qCDebug(KWIN_CORE) << "CLIENT:" << transiencyCheckClient << endl;
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abort();
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}
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transiencyCheckNonExistent = false;
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}
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}
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class TransiencyChecker
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{
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public:
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TransiencyChecker(const QString& bt, const Client*c) {
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startTransiencyCheck(bt, c, false);
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}
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~TransiencyChecker() {
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checkTransiency();
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}
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};
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void checkNonExistentClients()
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{
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startTransiencyCheck(kdBacktrace(), NULL, true);
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checkTransiency();
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}
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#define TRANSIENCY_CHECK( c ) TransiencyChecker transiency_checker( kdBacktrace(), c )
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#else
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#define TRANSIENCY_CHECK( c )
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void checkNonExistentClients()
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{
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}
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#endif
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//********************************************
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// Group
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//********************************************
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Group::Group(Window leader_P)
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: leader_client(NULL),
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leader_wid(leader_P),
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leader_info(NULL),
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user_time(-1U),
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refcount(0)
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{
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if (leader_P != None) {
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leader_client = workspace()->findClient(Predicate::WindowMatch, leader_P);
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leader_info = new NETWinInfo(connection(), leader_P, rootWindow(),
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0, NET::WM2StartupId);
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}
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effect_group = new EffectWindowGroupImpl(this);
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workspace()->addGroup(this);
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}
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Group::~Group()
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{
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delete leader_info;
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delete effect_group;
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}
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QIcon Group::icon() const
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{
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if (leader_client != NULL)
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return leader_client->icon();
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else if (leader_wid != None) {
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QIcon ic;
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NETWinInfo info(connection(), leader_wid, rootWindow(), NET::WMIcon, NET::WM2IconPixmap);
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auto readIcon = [&ic, &info, this](int size, bool scale = true) {
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const QPixmap pix = KWindowSystem::icon(leader_wid, size, size, scale, KWindowSystem::NETWM | KWindowSystem::WMHints, &info);
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if (!pix.isNull()) {
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ic.addPixmap(pix);
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}
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};
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readIcon(16);
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readIcon(32);
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readIcon(48, false);
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readIcon(64, false);
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readIcon(128, false);
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return ic;
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}
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return QIcon();
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}
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void Group::addMember(Client* member_P)
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{
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TRANSIENCY_CHECK(member_P);
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_members.append(member_P);
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// qDebug() << "GROUPADD:" << this << ":" << member_P;
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// qDebug() << kBacktrace();
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}
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void Group::removeMember(Client* member_P)
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{
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TRANSIENCY_CHECK(member_P);
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// qDebug() << "GROUPREMOVE:" << this << ":" << member_P;
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// qDebug() << kBacktrace();
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Q_ASSERT(_members.contains(member_P));
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_members.removeAll(member_P);
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// there are cases when automatic deleting of groups must be delayed,
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// e.g. when removing a member and doing some operation on the possibly
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// other members of the group (which would be however deleted already
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// if there were no other members)
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if (refcount == 0 && _members.isEmpty()) {
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workspace()->removeGroup(this);
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delete this;
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}
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}
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void Group::ref()
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{
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++refcount;
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}
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void Group::deref()
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{
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if (--refcount == 0 && _members.isEmpty()) {
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workspace()->removeGroup(this);
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delete this;
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}
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}
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void Group::gotLeader(Client* leader_P)
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{
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assert(leader_P->window() == leader_wid);
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leader_client = leader_P;
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}
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void Group::lostLeader()
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{
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assert(!_members.contains(leader_client));
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leader_client = NULL;
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if (_members.isEmpty()) {
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workspace()->removeGroup(this);
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delete this;
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}
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}
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//***************************************
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// Workspace
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//***************************************
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Group* Workspace::findGroup(xcb_window_t leader) const
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{
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assert(leader != None);
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for (GroupList::ConstIterator it = groups.constBegin();
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it != groups.constEnd();
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++it)
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if ((*it)->leader() == leader)
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return *it;
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return NULL;
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}
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// Client is group transient, but has no group set. Try to find
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// group with windows with the same client leader.
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Group* Workspace::findClientLeaderGroup(const Client* c) const
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{
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TRANSIENCY_CHECK(c);
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Group* ret = NULL;
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for (ClientList::ConstIterator it = clients.constBegin();
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it != clients.constEnd();
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++it) {
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if (*it == c)
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continue;
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if ((*it)->wmClientLeader() == c->wmClientLeader()) {
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if (ret == NULL || ret == (*it)->group())
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ret = (*it)->group();
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else {
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// There are already two groups with the same client leader.
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// This most probably means the app uses group transients without
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// setting group for its windows. Merging the two groups is a bad
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// hack, but there's no really good solution for this case.
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ClientList old_group = (*it)->group()->members();
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// old_group autodeletes when being empty
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for (int pos = 0;
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pos < old_group.count();
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++pos) {
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Client* tmp = old_group[ pos ];
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if (tmp != c)
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tmp->changeClientLeaderGroup(ret);
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}
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}
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}
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}
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return ret;
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}
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void Workspace::updateMinimizedOfTransients(Client* c)
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{
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// if mainwindow is minimized or shaded, minimize transients too
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if (c->isMinimized()) {
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for (ClientList::ConstIterator it = c->transients().constBegin();
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it != c->transients().constEnd();
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++it) {
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if ((*it)->isModal())
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continue; // there's no reason to hide modal dialogs with the main client
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// but to keep them to eg. watch progress or whatever
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if (!(*it)->isMinimized()) {
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(*it)->minimize();
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updateMinimizedOfTransients((*it));
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}
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}
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if (c->isModal()) { // if a modal dialog is minimized, minimize its mainwindow too
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foreach (Client * c2, c->mainClients())
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c2->minimize();
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}
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} else {
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// else unmiminize the transients
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for (ClientList::ConstIterator it = c->transients().constBegin();
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it != c->transients().constEnd();
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++it) {
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if ((*it)->isMinimized()) {
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(*it)->unminimize();
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updateMinimizedOfTransients((*it));
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}
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}
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if (c->isModal()) {
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foreach (Client * c2, c->mainClients())
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c2->unminimize();
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}
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}
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}
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/*!
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Sets the client \a c's transient windows' on_all_desktops property to \a on_all_desktops.
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*/
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void Workspace::updateOnAllDesktopsOfTransients(Client* c)
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{
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for (ClientList::ConstIterator it = c->transients().constBegin();
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it != c->transients().constEnd();
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++it) {
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if ((*it)->isOnAllDesktops() != c->isOnAllDesktops())
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(*it)->setOnAllDesktops(c->isOnAllDesktops());
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}
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}
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// A new window has been mapped. Check if it's not a mainwindow for some already existing transient window.
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void Workspace::checkTransients(xcb_window_t w)
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{
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TRANSIENCY_CHECK(NULL);
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for (ClientList::ConstIterator it = clients.constBegin();
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it != clients.constEnd();
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++it)
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(*it)->checkTransient(w);
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}
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//****************************************
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// Toplevel
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//****************************************
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// hacks for broken apps here
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// all resource classes are forced to be lowercase
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bool Toplevel::resourceMatch(const Toplevel* c1, const Toplevel* c2)
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{
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return c1->resourceClass() == c2->resourceClass();
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}
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//****************************************
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// Client
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//****************************************
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bool Client::belongToSameApplication(const Client* c1, const Client* c2, bool active_hack)
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{
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bool same_app = false;
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// tests that definitely mean they belong together
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if (c1 == c2)
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same_app = true;
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else if (c1->isTransient() && c2->hasTransient(c1, true))
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same_app = true; // c1 has c2 as mainwindow
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else if (c2->isTransient() && c1->hasTransient(c2, true))
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same_app = true; // c2 has c1 as mainwindow
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else if (c1->group() == c2->group())
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same_app = true; // same group
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else if (c1->wmClientLeader() == c2->wmClientLeader()
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&& c1->wmClientLeader() != c1->window() // if WM_CLIENT_LEADER is not set, it returns window(),
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&& c2->wmClientLeader() != c2->window()) // don't use in this test then
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same_app = true; // same client leader
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// tests that mean they most probably don't belong together
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else if (c1->pid() != c2->pid()
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|| c1->wmClientMachine(false) != c2->wmClientMachine(false))
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; // different processes
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else if (c1->wmClientLeader() != c2->wmClientLeader()
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&& c1->wmClientLeader() != c1->window() // if WM_CLIENT_LEADER is not set, it returns window(),
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&& c2->wmClientLeader() != c2->window()) // don't use in this test then
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; // different client leader
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else if (!resourceMatch(c1, c2))
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; // different apps
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else if (!sameAppWindowRoleMatch(c1, c2, active_hack))
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; // "different" apps
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else if (c1->pid() == 0 || c2->pid() == 0)
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; // old apps that don't have _NET_WM_PID, consider them different
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// if they weren't found to match above
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else
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same_app = true; // looks like it's the same app
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return same_app;
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}
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// Non-transient windows with window role containing '#' are always
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// considered belonging to different applications (unless
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// the window role is exactly the same). KMainWindow sets
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// window role this way by default, and different KMainWindow
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// usually "are" different application from user's point of view.
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// This help with no-focus-stealing for e.g. konqy reusing.
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// On the other hand, if one of the windows is active, they are
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// considered belonging to the same application. This is for
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// the cases when opening new mainwindow directly from the application,
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// e.g. 'Open New Window' in konqy ( active_hack == true ).
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bool Client::sameAppWindowRoleMatch(const Client* c1, const Client* c2, bool active_hack)
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{
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if (c1->isTransient()) {
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while (const Client *t = dynamic_cast<const Client*>(c1->transientFor()))
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c1 = t;
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if (c1->groupTransient())
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return c1->group() == c2->group();
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#if 0
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// if a group transient is in its own group, it didn't possibly have a group,
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// and therefore should be considered belonging to the same app like
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// all other windows from the same app
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|| c1->group()->leaderClient() == c1 || c2->group()->leaderClient() == c2;
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#endif
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}
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if (c2->isTransient()) {
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while (const Client *t = dynamic_cast<const Client*>(c2->transientFor()))
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c2 = t;
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if (c2->groupTransient())
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return c1->group() == c2->group();
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#if 0
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|| c1->group()->leaderClient() == c1 || c2->group()->leaderClient() == c2;
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#endif
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}
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int pos1 = c1->windowRole().indexOf('#');
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int pos2 = c2->windowRole().indexOf('#');
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if ((pos1 >= 0 && pos2 >= 0)) {
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if (!active_hack) // without the active hack for focus stealing prevention,
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return c1 == c2; // different mainwindows are always different apps
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if (!c1->isActive() && !c2->isActive())
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return c1 == c2;
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else
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return true;
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}
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return true;
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}
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/*
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Transiency stuff: ICCCM 4.1.2.6, NETWM 7.3
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WM_TRANSIENT_FOR is basically means "this is my mainwindow".
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For NET::Unknown windows, transient windows are considered to be NET::Dialog
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windows, for compatibility with non-NETWM clients. KWin may adjust the value
|
|
of this property in some cases (window pointing to itself or creating a loop,
|
|
keeping NET::Splash windows above other windows from the same app, etc.).
|
|
|
|
Client::transient_for_id is the value of the WM_TRANSIENT_FOR property, after
|
|
possibly being adjusted by KWin. Client::transient_for points to the Client
|
|
this Client is transient for, or is NULL. If Client::transient_for_id is
|
|
poiting to the root window, the window is considered to be transient
|
|
for the whole window group, as suggested in NETWM 7.3.
|
|
|
|
In the case of group transient window, Client::transient_for is NULL,
|
|
and Client::groupTransient() returns true. Such window is treated as
|
|
if it were transient for every window in its window group that has been
|
|
mapped _before_ it (or, to be exact, was added to the same group before it).
|
|
Otherwise two group transients can create loops, which can lead very very
|
|
nasty things (bug #67914 and all its dupes).
|
|
|
|
Client::original_transient_for_id is the value of the property, which
|
|
may be different if Client::transient_for_id if e.g. forcing NET::Splash
|
|
to be kept on top of its window group, or when the mainwindow is not mapped
|
|
yet, in which case the window is temporarily made group transient,
|
|
and when the mainwindow is mapped, transiency is re-evaluated.
|
|
|
|
This can get a bit complicated with with e.g. two Konqueror windows created
|
|
by the same process. They should ideally appear like two independent applications
|
|
to the user. This should be accomplished by all windows in the same process
|
|
having the same window group (needs to be changed in Qt at the moment), and
|
|
using non-group transients poiting to their relevant mainwindow for toolwindows
|
|
etc. KWin should handle both group and non-group transient dialogs well.
|
|
|
|
In other words:
|
|
- non-transient windows : isTransient() == false
|
|
- normal transients : transientFor() != NULL
|
|
- group transients : groupTransient() == true
|
|
|
|
- list of mainwindows : mainClients() (call once and loop over the result)
|
|
- list of transients : transients()
|
|
- every window in the group : group()->members()
|
|
*/
|
|
|
|
Xcb::TransientFor Client::fetchTransient() const
|
|
{
|
|
return Xcb::TransientFor(window());
|
|
}
|
|
|
|
void Client::readTransientProperty(Xcb::TransientFor &transientFor)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
xcb_window_t new_transient_for_id = XCB_WINDOW_NONE;
|
|
if (transientFor.getTransientFor(&new_transient_for_id)) {
|
|
m_originalTransientForId = new_transient_for_id;
|
|
new_transient_for_id = verifyTransientFor(new_transient_for_id, true);
|
|
} else {
|
|
m_originalTransientForId = XCB_WINDOW_NONE;
|
|
new_transient_for_id = verifyTransientFor(XCB_WINDOW_NONE, false);
|
|
}
|
|
setTransient(new_transient_for_id);
|
|
}
|
|
|
|
void Client::readTransient()
|
|
{
|
|
Xcb::TransientFor transientFor = fetchTransient();
|
|
readTransientProperty(transientFor);
|
|
}
|
|
|
|
void Client::setTransient(xcb_window_t new_transient_for_id)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
if (new_transient_for_id != m_transientForId) {
|
|
removeFromMainClients();
|
|
Client *transient_for = nullptr;
|
|
m_transientForId = new_transient_for_id;
|
|
if (m_transientForId != XCB_WINDOW_NONE && !groupTransient()) {
|
|
transient_for = workspace()->findClient(Predicate::WindowMatch, m_transientForId);
|
|
assert(transient_for != NULL); // verifyTransient() had to check this
|
|
transient_for->addTransient(this);
|
|
} // checkGroup() will check 'check_active_modal'
|
|
setTransientFor(transient_for);
|
|
checkGroup(NULL, true); // force, because transiency has changed
|
|
workspace()->updateClientLayer(this);
|
|
workspace()->resetUpdateToolWindowsTimer();
|
|
emit transientChanged();
|
|
}
|
|
}
|
|
|
|
void Client::removeFromMainClients()
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
if (Client *t = dynamic_cast<Client*>(transientFor()))
|
|
t->removeTransient(this);
|
|
if (groupTransient()) {
|
|
for (ClientList::ConstIterator it = group()->members().constBegin();
|
|
it != group()->members().constEnd();
|
|
++it)
|
|
(*it)->removeTransient(this);
|
|
}
|
|
}
|
|
|
|
// *sigh* this transiency handling is madness :(
|
|
// This one is called when destroying/releasing a window.
|
|
// It makes sure this client is removed from all grouping
|
|
// related lists.
|
|
void Client::cleanGrouping()
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
// qDebug() << "CLEANGROUPING:" << this;
|
|
// for ( ClientList::ConstIterator it = group()->members().begin();
|
|
// it != group()->members().end();
|
|
// ++it )
|
|
// qDebug() << "CL:" << *it;
|
|
// ClientList mains;
|
|
// mains = mainClients();
|
|
// for ( ClientList::ConstIterator it = mains.begin();
|
|
// it != mains.end();
|
|
// ++it )
|
|
// qDebug() << "MN:" << *it;
|
|
removeFromMainClients();
|
|
// qDebug() << "CLEANGROUPING2:" << this;
|
|
// for ( ClientList::ConstIterator it = group()->members().begin();
|
|
// it != group()->members().end();
|
|
// ++it )
|
|
// qDebug() << "CL2:" << *it;
|
|
// mains = mainClients();
|
|
// for ( ClientList::ConstIterator it = mains.begin();
|
|
// it != mains.end();
|
|
// ++it )
|
|
// qDebug() << "MN2:" << *it;
|
|
for (ClientList::ConstIterator it = transients_list.constBegin();
|
|
it != transients_list.constEnd();
|
|
) {
|
|
if ((*it)->transientFor() == this) {
|
|
removeTransient(*it);
|
|
it = transients_list.constBegin(); // restart, just in case something more has changed with the list
|
|
} else
|
|
++it;
|
|
}
|
|
// qDebug() << "CLEANGROUPING3:" << this;
|
|
// for ( ClientList::ConstIterator it = group()->members().begin();
|
|
// it != group()->members().end();
|
|
// ++it )
|
|
// qDebug() << "CL3:" << *it;
|
|
// mains = mainClients();
|
|
// for ( ClientList::ConstIterator it = mains.begin();
|
|
// it != mains.end();
|
|
// ++it )
|
|
// qDebug() << "MN3:" << *it;
|
|
// HACK
|
|
// removeFromMainClients() did remove 'this' from transient
|
|
// lists of all group members, but then made windows that
|
|
// were transient for 'this' group transient, which again
|
|
// added 'this' to those transient lists :(
|
|
ClientList group_members = group()->members();
|
|
group()->removeMember(this);
|
|
in_group = NULL;
|
|
for (ClientList::ConstIterator it = group_members.constBegin();
|
|
it != group_members.constEnd();
|
|
++it)
|
|
(*it)->removeTransient(this);
|
|
// qDebug() << "CLEANGROUPING4:" << this;
|
|
// for ( ClientList::ConstIterator it = group_members.begin();
|
|
// it != group_members.end();
|
|
// ++it )
|
|
// qDebug() << "CL4:" << *it;
|
|
m_transientForId = XCB_WINDOW_NONE;
|
|
}
|
|
|
|
// Make sure that no group transient is considered transient
|
|
// for a window that is (directly or indirectly) transient for it
|
|
// (including another group transients).
|
|
// Non-group transients not causing loops are checked in verifyTransientFor().
|
|
void Client::checkGroupTransients()
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
for (ClientList::ConstIterator it1 = group()->members().constBegin();
|
|
it1 != group()->members().constEnd();
|
|
++it1) {
|
|
if (!(*it1)->groupTransient()) // check all group transients in the group
|
|
continue; // TODO optimize to check only the changed ones?
|
|
for (ClientList::ConstIterator it2 = group()->members().constBegin();
|
|
it2 != group()->members().constEnd();
|
|
++it2) { // group transients can be transient only for others in the group,
|
|
// so don't make them transient for the ones that are transient for it
|
|
if (*it1 == *it2)
|
|
continue;
|
|
for (AbstractClient* cl = (*it2)->transientFor();
|
|
cl != NULL;
|
|
cl = cl->transientFor()) {
|
|
if (cl == *it1) {
|
|
// don't use removeTransient(), that would modify *it2 too
|
|
(*it2)->transients_list.removeAll(*it1);
|
|
continue;
|
|
}
|
|
}
|
|
// if *it1 and *it2 are both group transients, and are transient for each other,
|
|
// make only *it2 transient for *it1 (i.e. subwindow), as *it2 came later,
|
|
// and should be therefore on top of *it1
|
|
// TODO This could possibly be optimized, it also requires hasTransient() to check for loops.
|
|
if ((*it2)->groupTransient() && (*it1)->hasTransient(*it2, true) && (*it2)->hasTransient(*it1, true))
|
|
(*it2)->transients_list.removeAll(*it1);
|
|
// if there are already windows W1 and W2, W2 being transient for W1, and group transient W3
|
|
// is added, make it transient only for W2, not for W1, because it's already indirectly
|
|
// transient for it - the indirect transiency actually shouldn't break anything,
|
|
// but it can lead to exponentially expensive operations (#95231)
|
|
// TODO this is pretty slow as well
|
|
for (ClientList::ConstIterator it3 = group()->members().constBegin();
|
|
it3 != group()->members().constEnd();
|
|
++it3) {
|
|
if (*it1 == *it2 || *it2 == *it3 || *it1 == *it3)
|
|
continue;
|
|
if ((*it2)->hasTransient(*it1, false) && (*it3)->hasTransient(*it1, false)) {
|
|
if ((*it2)->hasTransient(*it3, true))
|
|
(*it2)->transients_list.removeAll(*it1);
|
|
if ((*it3)->hasTransient(*it2, true))
|
|
(*it3)->transients_list.removeAll(*it1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Check that the window is not transient for itself, and similar nonsense.
|
|
*/
|
|
xcb_window_t Client::verifyTransientFor(xcb_window_t new_transient_for, bool set)
|
|
{
|
|
xcb_window_t new_property_value = new_transient_for;
|
|
// make sure splashscreens are shown above all their app's windows, even though
|
|
// they're in Normal layer
|
|
if (isSplash() && new_transient_for == XCB_WINDOW_NONE)
|
|
new_transient_for = rootWindow();
|
|
if (new_transient_for == XCB_WINDOW_NONE) {
|
|
if (set) // sometimes WM_TRANSIENT_FOR is set to None, instead of root window
|
|
new_property_value = new_transient_for = rootWindow();
|
|
else
|
|
return XCB_WINDOW_NONE;
|
|
}
|
|
if (new_transient_for == window()) { // pointing to self
|
|
// also fix the property itself
|
|
qCWarning(KWIN_CORE) << "Client " << this << " has WM_TRANSIENT_FOR poiting to itself." ;
|
|
new_property_value = new_transient_for = rootWindow();
|
|
}
|
|
// The transient_for window may be embedded in another application,
|
|
// so kwin cannot see it. Try to find the managed client for the
|
|
// window and fix the transient_for property if possible.
|
|
xcb_window_t before_search = new_transient_for;
|
|
while (new_transient_for != XCB_WINDOW_NONE
|
|
&& new_transient_for != rootWindow()
|
|
&& !workspace()->findClient(Predicate::WindowMatch, new_transient_for)) {
|
|
Xcb::Tree tree(new_transient_for);
|
|
if (tree.isNull()) {
|
|
break;
|
|
}
|
|
new_transient_for = tree->parent;
|
|
}
|
|
if (Client* new_transient_for_client = workspace()->findClient(Predicate::WindowMatch, new_transient_for)) {
|
|
if (new_transient_for != before_search) {
|
|
qCDebug(KWIN_CORE) << "Client " << this << " has WM_TRANSIENT_FOR poiting to non-toplevel window "
|
|
<< before_search << ", child of " << new_transient_for_client << ", adjusting.";
|
|
new_property_value = new_transient_for; // also fix the property
|
|
}
|
|
} else
|
|
new_transient_for = before_search; // nice try
|
|
// loop detection
|
|
// group transients cannot cause loops, because they're considered transient only for non-transient
|
|
// windows in the group
|
|
int count = 20;
|
|
xcb_window_t loop_pos = new_transient_for;
|
|
while (loop_pos != XCB_WINDOW_NONE && loop_pos != rootWindow()) {
|
|
Client* pos = workspace()->findClient(Predicate::WindowMatch, loop_pos);
|
|
if (pos == NULL)
|
|
break;
|
|
loop_pos = pos->m_transientForId;
|
|
if (--count == 0 || pos == this) {
|
|
qCWarning(KWIN_CORE) << "Client " << this << " caused WM_TRANSIENT_FOR loop." ;
|
|
new_transient_for = rootWindow();
|
|
}
|
|
}
|
|
if (new_transient_for != rootWindow()
|
|
&& workspace()->findClient(Predicate::WindowMatch, new_transient_for) == NULL) {
|
|
// it's transient for a specific window, but that window is not mapped
|
|
new_transient_for = rootWindow();
|
|
}
|
|
if (new_property_value != m_originalTransientForId)
|
|
Xcb::setTransientFor(window(), new_property_value);
|
|
return new_transient_for;
|
|
}
|
|
|
|
void Client::addTransient(Client* cl)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
assert(!transients_list.contains(cl));
|
|
// assert( !cl->hasTransient( this, true )); will be fixed in checkGroupTransients()
|
|
assert(cl != this);
|
|
transients_list.append(cl);
|
|
if (workspace()->mostRecentlyActivatedClient() == this && cl->isModal())
|
|
check_active_modal = true;
|
|
// qDebug() << "ADDTRANS:" << this << ":" << cl;
|
|
// qDebug() << kBacktrace();
|
|
// for ( ClientList::ConstIterator it = transients_list.begin();
|
|
// it != transients_list.end();
|
|
// ++it )
|
|
// qDebug() << "AT:" << (*it);
|
|
}
|
|
|
|
void Client::removeTransient(Client* cl)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
// qDebug() << "REMOVETRANS:" << this << ":" << cl;
|
|
// qDebug() << kBacktrace();
|
|
transients_list.removeAll(cl);
|
|
// cl is transient for this, but this is going away
|
|
// make cl group transient
|
|
if (cl->transientFor() == this) {
|
|
cl->m_transientForId = XCB_WINDOW_NONE;
|
|
cl->setTransientFor(nullptr); // SELI
|
|
// SELI cl->setTransient( rootWindow());
|
|
cl->setTransient(XCB_WINDOW_NONE);
|
|
}
|
|
}
|
|
|
|
// A new window has been mapped. Check if it's not a mainwindow for this already existing window.
|
|
void Client::checkTransient(xcb_window_t w)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
if (m_originalTransientForId != w)
|
|
return;
|
|
w = verifyTransientFor(w, true);
|
|
setTransient(w);
|
|
}
|
|
|
|
// returns true if cl is the transient_for window for this client,
|
|
// or recursively the transient_for window
|
|
bool Client::hasTransient(const AbstractClient* cl, bool indirect) const
|
|
{
|
|
if (const Client *c = dynamic_cast<const Client*>(cl)) {
|
|
// checkGroupTransients() uses this to break loops, so hasTransient() must detect them
|
|
ConstClientList set;
|
|
return hasTransientInternal(c, indirect, set);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool Client::hasTransientInternal(const Client* cl, bool indirect, ConstClientList& set) const
|
|
{
|
|
if (const Client *t = dynamic_cast<const Client*>(cl->transientFor())) {
|
|
if (t == this)
|
|
return true;
|
|
if (!indirect)
|
|
return false;
|
|
if (set.contains(cl))
|
|
return false;
|
|
set.append(cl);
|
|
return hasTransientInternal(t, indirect, set);
|
|
}
|
|
if (!cl->isTransient())
|
|
return false;
|
|
if (group() != cl->group())
|
|
return false;
|
|
// cl is group transient, search from top
|
|
if (transients().contains(const_cast< Client* >(cl)))
|
|
return true;
|
|
if (!indirect)
|
|
return false;
|
|
if (set.contains(this))
|
|
return false;
|
|
set.append(this);
|
|
for (ClientList::ConstIterator it = transients().constBegin();
|
|
it != transients().constEnd();
|
|
++it)
|
|
if ((*it)->hasTransientInternal(cl, indirect, set))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
ClientList Client::mainClients() const
|
|
{
|
|
if (!isTransient())
|
|
return ClientList();
|
|
if (const Client *t = qobject_cast<const Client*>(transientFor()))
|
|
return ClientList() << const_cast< Client* >(t);
|
|
ClientList result;
|
|
Q_ASSERT(group());
|
|
for (ClientList::ConstIterator it = group()->members().constBegin();
|
|
it != group()->members().constEnd();
|
|
++it)
|
|
if ((*it)->hasTransient(this, false))
|
|
result.append(*it);
|
|
return result;
|
|
}
|
|
|
|
ClientList Client::allMainClients() const
|
|
{
|
|
ClientList result = mainClients();
|
|
foreach (const Client * cl, result)
|
|
result += cl->allMainClients();
|
|
return result;
|
|
}
|
|
|
|
AbstractClient* Client::findModal(bool allow_itself)
|
|
{
|
|
for (ClientList::ConstIterator it = transients().constBegin();
|
|
it != transients().constEnd();
|
|
++it)
|
|
if (AbstractClient* ret = (*it)->findModal(true))
|
|
return ret;
|
|
if (isModal() && allow_itself)
|
|
return this;
|
|
return NULL;
|
|
}
|
|
|
|
// Client::window_group only holds the contents of the hint,
|
|
// but it should be used only to find the group, not for anything else
|
|
// Argument is only when some specific group needs to be set.
|
|
void Client::checkGroup(Group* set_group, bool force)
|
|
{
|
|
TRANSIENCY_CHECK(this);
|
|
Group* old_group = in_group;
|
|
if (old_group != NULL)
|
|
old_group->ref(); // turn off automatic deleting
|
|
if (set_group != NULL) {
|
|
if (set_group != in_group) {
|
|
if (in_group != NULL)
|
|
in_group->removeMember(this);
|
|
in_group = set_group;
|
|
in_group->addMember(this);
|
|
}
|
|
} else if (info->groupLeader() != XCB_WINDOW_NONE) {
|
|
Group* new_group = workspace()->findGroup(info->groupLeader());
|
|
Client *t = qobject_cast<Client*>(transientFor());
|
|
if (t != NULL && t->group() != new_group) {
|
|
// move the window to the right group (e.g. a dialog provided
|
|
// by different app, but transient for this one, so make it part of that group)
|
|
new_group = t->group();
|
|
}
|
|
if (new_group == NULL) // doesn't exist yet
|
|
new_group = new Group(info->groupLeader());
|
|
if (new_group != in_group) {
|
|
if (in_group != NULL)
|
|
in_group->removeMember(this);
|
|
in_group = new_group;
|
|
in_group->addMember(this);
|
|
}
|
|
} else {
|
|
if (Client *t = qobject_cast<Client*>(transientFor())) {
|
|
// doesn't have window group set, but is transient for something
|
|
// so make it part of that group
|
|
Group* new_group = t->group();
|
|
if (new_group != in_group) {
|
|
if (in_group != NULL)
|
|
in_group->removeMember(this);
|
|
in_group = t->group();
|
|
in_group->addMember(this);
|
|
}
|
|
} else if (groupTransient()) {
|
|
// group transient which actually doesn't have a group :(
|
|
// try creating group with other windows with the same client leader
|
|
Group* new_group = workspace()->findClientLeaderGroup(this);
|
|
if (new_group == NULL)
|
|
new_group = new Group(None);
|
|
if (new_group != in_group) {
|
|
if (in_group != NULL)
|
|
in_group->removeMember(this);
|
|
in_group = new_group;
|
|
in_group->addMember(this);
|
|
}
|
|
} else { // Not transient without a group, put it in its client leader group.
|
|
// This might be stupid if grouping was used for e.g. taskbar grouping
|
|
// or minimizing together the whole group, but as long as it is used
|
|
// only for dialogs it's better to keep windows from one app in one group.
|
|
Group* new_group = workspace()->findClientLeaderGroup(this);
|
|
if (in_group != NULL && in_group != new_group) {
|
|
in_group->removeMember(this);
|
|
in_group = NULL;
|
|
}
|
|
if (new_group == NULL)
|
|
new_group = new Group(None);
|
|
if (in_group != new_group) {
|
|
in_group = new_group;
|
|
in_group->addMember(this);
|
|
}
|
|
}
|
|
}
|
|
if (in_group != old_group || force) {
|
|
for (ClientList::Iterator it = transients_list.begin();
|
|
it != transients_list.end();
|
|
) {
|
|
// group transients in the old group are no longer transient for it
|
|
if ((*it)->groupTransient() && (*it)->group() != group())
|
|
it = transients_list.erase(it);
|
|
else
|
|
++it;
|
|
}
|
|
if (groupTransient()) {
|
|
// no longer transient for ones in the old group
|
|
if (old_group != NULL) {
|
|
for (ClientList::ConstIterator it = old_group->members().constBegin();
|
|
it != old_group->members().constEnd();
|
|
++it)
|
|
(*it)->removeTransient(this);
|
|
}
|
|
// and make transient for all in the new group
|
|
for (ClientList::ConstIterator it = group()->members().constBegin();
|
|
it != group()->members().constEnd();
|
|
++it) {
|
|
if (*it == this)
|
|
break; // this means the window is only transient for windows mapped before it
|
|
(*it)->addTransient(this);
|
|
}
|
|
}
|
|
// group transient splashscreens should be transient even for windows
|
|
// in group mapped later
|
|
for (ClientList::ConstIterator it = group()->members().constBegin();
|
|
it != group()->members().constEnd();
|
|
++it) {
|
|
if (!(*it)->isSplash())
|
|
continue;
|
|
if (!(*it)->groupTransient())
|
|
continue;
|
|
if (*it == this || hasTransient(*it, true)) // TODO indirect?
|
|
continue;
|
|
addTransient(*it);
|
|
}
|
|
}
|
|
if (old_group != NULL)
|
|
old_group->deref(); // can be now deleted if empty
|
|
checkGroupTransients();
|
|
checkActiveModal();
|
|
workspace()->updateClientLayer(this);
|
|
}
|
|
|
|
// used by Workspace::findClientLeaderGroup()
|
|
void Client::changeClientLeaderGroup(Group* gr)
|
|
{
|
|
// transientFor() != NULL are in the group of their mainwindow, so keep them there
|
|
if (transientFor() != NULL)
|
|
return;
|
|
// also don't change the group for window which have group set
|
|
if (info->groupLeader())
|
|
return;
|
|
checkGroup(gr); // change group
|
|
}
|
|
|
|
bool Client::check_active_modal = false;
|
|
|
|
void Client::checkActiveModal()
|
|
{
|
|
// if the active window got new modal transient, activate it.
|
|
// cannot be done in AddTransient(), because there may temporarily
|
|
// exist loops, breaking findModal
|
|
Client* check_modal = dynamic_cast<Client*>(workspace()->mostRecentlyActivatedClient());
|
|
if (check_modal != NULL && check_modal->check_active_modal) {
|
|
Client* new_modal = dynamic_cast<Client*>(check_modal->findModal());
|
|
if (new_modal != NULL && new_modal != check_modal) {
|
|
if (!new_modal->isManaged())
|
|
return; // postpone check until end of manage()
|
|
workspace()->activateClient(new_modal);
|
|
}
|
|
check_modal->check_active_modal = false;
|
|
}
|
|
}
|
|
|
|
} // namespace
|