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//////////////////////////////////////////////////////////////////////////////
// breezedetectwidget.cpp
// Note: this class is a stripped down version of
// /kdebase/workspace/kwin/kcmkwin/kwinrules/detectwidget.cpp
// Copyright (c) 2004 Lubos Lunak <l.lunak@kde.org>
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//////////////////////////////////////////////////////////////////////////////
#include "breezedetectwidget.h"
#include "breeze.h"
#include <KWindowInfo>
#include <QPushButton>
#include <QMouseEvent>
#include <config-breeze.h>
#if BREEZE_HAVE_X11
#include <QX11Info>
#include <xcb/xcb.h>
#endif
namespace Breeze
{
//_________________________________________________________
DetectDialog::DetectDialog( QWidget* parent ):
QDialog( parent )
{
// setup
m_ui.setupUi( this );
connect( m_ui.buttonBox->button( QDialogButtonBox::Cancel ), SIGNAL(clicked()), this, SLOT(close()) );
m_ui.windowClassCheckBox->setChecked( true );
#if BREEZE_HAVE_X11
if (QX11Info::isPlatformX11()) {
// create atom
xcb_connection_t* connection( QX11Info::connection() );
const QString atomName( QStringLiteral( "WM_STATE" ) );
xcb_intern_atom_cookie_t cookie( xcb_intern_atom( connection, false, atomName.size(), qPrintable( atomName ) ) );
QScopedPointer<xcb_intern_atom_reply_t, QScopedPointerPodDeleter> reply( xcb_intern_atom_reply( connection, cookie, nullptr) );
m_wmStateAtom = reply ? reply->atom : 0;
}
#endif
}
//_________________________________________________________
void DetectDialog::detect( WId window )
{
if( window == 0 ) selectWindow();
else readWindow( window );
}
//_________________________________________________________
void DetectDialog::readWindow( WId window )
{
if( window == 0 )
{
emit detectionDone( false );
return;
}
m_info.reset(new KWindowInfo( window, NET::WMAllProperties, NET::WM2AllProperties ));
if( !m_info->valid())
{
emit detectionDone( false );
return;
}
const QString wmClassClass( QString::fromUtf8( m_info->windowClassClass() ) );
const QString wmClassName( QString::fromUtf8( m_info->windowClassName() ) );
m_ui.windowClass->setText( QStringLiteral( "%1 (%2 %3)" ).arg( wmClassClass ).arg( wmClassName ).arg( wmClassClass ) );
m_ui.windowTitle->setText( m_info->name() );
emit detectionDone( exec() == QDialog::Accepted );
}
//_________________________________________________________
void DetectDialog::selectWindow()
{
// use a dialog, so that all user input is blocked
// use WX11BypassWM and moving away so that it's not actually visible
// grab only mouse, so that keyboard can be used e.g. for switching windows
m_grabber = new QDialog( nullptr, Qt::X11BypassWindowManagerHint );
m_grabber->move( -1000, -1000 );
m_grabber->setModal( true );
m_grabber->show();
// need to explicitly override cursor for Qt5
qApp->setOverrideCursor( Qt::CrossCursor );
m_grabber->grabMouse( Qt::CrossCursor );
m_grabber->installEventFilter( this );
}
//_________________________________________________________
bool DetectDialog::eventFilter( QObject* o, QEvent* e )
{
// check object and event type
if( o != m_grabber ) return false;
if( e->type() != QEvent::MouseButtonRelease ) return false;
// need to explicitely release cursor for Qt5
qApp->restoreOverrideCursor();
// delete old m_grabber
delete m_grabber;
m_grabber = nullptr;
// check button
if( static_cast< QMouseEvent* >( e )->button() != Qt::LeftButton ) return true;
// read window information
readWindow( findWindow() );
return true;
}
//_________________________________________________________
WId DetectDialog::findWindow()
{
#if BREEZE_HAVE_X11
if (!QX11Info::isPlatformX11()) {
return 0;
}
// check atom
if( !m_wmStateAtom ) return 0;
xcb_connection_t* connection( QX11Info::connection() );
xcb_window_t parent( QX11Info::appRootWindow() );
// why is there a loop of only 10 here
for( int i = 0; i < 10; ++i )
{
// query pointer
xcb_query_pointer_cookie_t pointerCookie( xcb_query_pointer( connection, parent ) );
QScopedPointer<xcb_query_pointer_reply_t, QScopedPointerPodDeleter> pointerReply( xcb_query_pointer_reply( connection, pointerCookie, nullptr ) );
if( !( pointerReply && pointerReply->child ) ) return 0;
const xcb_window_t child( pointerReply->child );
xcb_get_property_cookie_t cookie( xcb_get_property( connection, 0, child, m_wmStateAtom, XCB_GET_PROPERTY_TYPE_ANY, 0, 0 ) );
QScopedPointer<xcb_get_property_reply_t, QScopedPointerPodDeleter> reply( xcb_get_property_reply( connection, cookie, nullptr ) );
if( reply && reply->type ) return child;
else parent = child;
}
#endif
return 0;
}
}
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