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-rw-r--r--kparts/partmanager.cpp601
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diff --git a/kparts/partmanager.cpp b/kparts/partmanager.cpp
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-// -*- mode: c++; c-basic-offset: 2 -*-
-/* This file is part of the KDE project
- Copyright (C) 1999 Simon Hausmann <hausmann@kde.org>
- (C) 1999 David Faure <faure@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#include "partmanager.h"
-#include <kparts/event.h>
-#include <kparts/part.h>
-#include <kglobal.h>
-#include <kdebug.h>
-
-#include <tqapplication.h>
-
-//#define DEBUG_PARTMANAGER
-
-using namespace KParts;
-
-template class TQPtrList<Part>;
-
-namespace KParts {
-
-class PartManagerPrivate
-{
-public:
- PartManagerPrivate()
- {
- m_activeWidget = 0;
- m_activePart = 0;
- m_selectedPart = 0;
- m_selectedWidget = 0;
- m_bAllowNestedParts = false;
- m_bIgnoreScrollBars = false;
- m_activationButtonMask = Qt::LeftButton | Qt::MidButton | Qt::RightButton;
- m_reason = PartManager::NoReason;
- }
- ~PartManagerPrivate()
- {
- }
- void setReason( TQEvent* ev ) {
- switch( ev->type() ) {
- case TQEvent::MouseButtonPress:
- case TQEvent::MouseButtonDblClick: {
- TQMouseEvent* mev = TQT_TQMOUSEEVENT( ev );
- m_reason = mev->button() == Qt::LeftButton
- ? PartManager::ReasonLeftClick
- : ( mev->button() == Qt::MidButton
- ? PartManager::ReasonMidClick
- : PartManager::ReasonRightClick );
- break;
- }
- case TQEvent::FocusIn:
- m_reason = TQT_TQFOCUSEVENT( ev )->reason();
- break;
- default:
- kdWarning(1000) << "PartManagerPrivate::setReason got unexpected ev type " << ev->type() << endl;
- break;
- }
- }
-
- Part * m_activePart;
- TQWidget *m_activeWidget;
-
- TQPtrList<Part> m_parts;
-
- PartManager::SelectionPolicy m_policy;
-
- Part *m_selectedPart;
- TQWidget *m_selectedWidget;
-
- TQPtrList<TQWidget> m_managedTopLevelWidgets;
- short int m_activationButtonMask;
- bool m_bIgnoreScrollBars;
- bool m_bAllowNestedParts;
- int m_reason;
-};
-
-}
-
-PartManager::PartManager( TQWidget * parent, const char * name )
- : TQObject( parent, name )
-{
- d = new PartManagerPrivate;
-
- tqApp->installEventFilter( this );
-
- d->m_policy = Direct;
-
- addManagedTopLevelWidget( parent );
-}
-
-PartManager::PartManager( TQWidget *topLevel, TQObject *parent, const char *name )
- : TQObject( parent, name )
-{
- d = new PartManagerPrivate;
-
- tqApp->installEventFilter( this );
-
- d->m_policy = Direct;
-
- addManagedTopLevelWidget( topLevel );
-}
-
-PartManager::~PartManager()
-{
- for ( TQPtrListIterator<TQWidget> it( d->m_managedTopLevelWidgets );
- it.current(); ++it )
- disconnect( it.current(), TQT_SIGNAL( destroyed() ),
- this, TQT_SLOT( slotManagedTopLevelWidgetDestroyed() ) );
-
- for ( TQPtrListIterator<Part> it( d->m_parts ); it.current(); ++it )
- {
- it.current()->setManager( 0 );
- }
-
- // core dumps ... setActivePart( 0L );
- tqApp->removeEventFilter( this );
- delete d;
-}
-
-void PartManager::setSelectionPolicy( SelectionPolicy policy )
-{
- d->m_policy = policy;
-}
-
-PartManager::SelectionPolicy PartManager::selectionPolicy() const
-{
- return d->m_policy;
-}
-
-void PartManager::setAllowNestedParts( bool allow )
-{
- d->m_bAllowNestedParts = allow;
-}
-
-bool PartManager::allowNestedParts() const
-{
- return d->m_bAllowNestedParts;
-}
-
-void PartManager::setIgnoreScrollBars( bool ignore )
-{
- d->m_bIgnoreScrollBars = ignore;
-}
-
-bool PartManager::ignoreScrollBars() const
-{
- return d->m_bIgnoreScrollBars;
-}
-
-void PartManager::setActivationButtonMask( short int buttonMask )
-{
- d->m_activationButtonMask = buttonMask;
-}
-
-short int PartManager::activationButtonMask() const
-{
- return d->m_activationButtonMask;
-}
-
-bool PartManager::eventFilter( TQObject *obj, TQEvent *ev )
-{
-
- if ( ev->type() != TQEvent::MouseButtonPress &&
- ev->type() != TQEvent::MouseButtonDblClick &&
- ev->type() != TQEvent::FocusIn )
- return false;
-
- if ( !obj->isWidgetType() )
- return false;
-
- TQWidget *w = TQT_TQWIDGET( obj );
-
- if ( ( w->testWFlags( WType_Dialog ) && w->isModal() ) ||
- w->testWFlags( WType_Popup ) || w->testWFlags( WStyle_Tool ) )
- return false;
-
- TQMouseEvent* mev = 0L;
- if ( ev->type() == TQEvent::MouseButtonPress || ev->type() == TQEvent::MouseButtonDblClick )
- {
- mev = TQT_TQMOUSEEVENT( ev );
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "PartManager::eventFilter button: " << mev->button() << " " << "d->m_activationButtonMask=" << d->m_activationButtonMask << endl;
-#endif
- if ( ( mev->button() & d->m_activationButtonMask ) == 0 )
- return false; // ignore this button
- }
-
- Part * part;
- while ( w )
- {
- TQPoint pos;
-
- if ( !d->m_managedTopLevelWidgets.containsRef( w->topLevelWidget() ) )
- return false;
-
- if ( d->m_bIgnoreScrollBars && w->inherits( TQSCROLLBAR_OBJECT_NAME_STRING ) )
- return false;
-
- if ( mev ) // mouse press or mouse double-click event
- {
- pos = mev->globalPos();
- part = findPartFromWidget( w, pos );
- } else
- part = findPartFromWidget( w );
-
-#ifdef DEBUG_PARTMANAGER
- TQCString evType = ( ev->type() == TQEvent::MouseButtonPress ) ? "MouseButtonPress"
- : ( ev->type() == TQEvent::MouseButtonDblClick ) ? "MouseButtonDblClick"
- : ( ev->type() == TQEvent::FocusIn ) ? "FocusIn" : "OTHER! ERROR!";
-#endif
- if ( part ) // We found a part whose widget is w
- {
- if ( d->m_policy == PartManager::TriState )
- {
- if ( ev->type() == TQEvent::MouseButtonDblClick )
- {
- if ( part == d->m_activePart && w == d->m_activeWidget )
- return false;
-
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "PartManager::eventFilter dblclick -> setActivePart" << part << endl;
-#endif
- d->setReason( ev );
- setActivePart( part, w );
- d->m_reason = NoReason;
- return true;
- }
-
- if ( ( d->m_selectedWidget != w || d->m_selectedPart != part ) &&
- ( d->m_activeWidget != w || d->m_activePart != part ) )
- {
- if ( part->isSelectable() )
- setSelectedPart( part, w );
- else {
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "Part " << part << " (non-selectable) made active because " << w->className() << " got event" << " " << evType << endl;
-#endif
- d->setReason( ev );
- setActivePart( part, w );
- d->m_reason = NoReason;
- }
- return true;
- }
- else if ( d->m_selectedWidget == w && d->m_selectedPart == part )
- {
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "Part " << part << " made active (from selected) because " << w->className() << " got event" << " " << evType << endl;
-#endif
- d->setReason( ev );
- setActivePart( part, w );
- d->m_reason = NoReason;
- return true;
- }
- else if ( d->m_activeWidget == w && d->m_activePart == part )
- {
- setSelectedPart( 0L );
- return false;
- }
-
- return false;
- }
- else if ( part != d->m_activePart )
- {
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "Part " << part << " made active because " << w->className() << " got event" << " " << evType << endl;
-#endif
- d->setReason( ev );
- setActivePart( part, w );
- d->m_reason = NoReason;
- }
-
- return false;
- }
-
- w = w->parentWidget();
-
- if ( w && ( ( w->testWFlags( WType_Dialog ) && w->isModal() ) ||
- w->testWFlags( WType_Popup ) || w->testWFlags( WStyle_Tool ) ) )
- {
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << TQString("No part made active although %1/%2 got event - loop aborted").arg(obj->name()).arg(obj->className()) << endl;
-#endif
- return false;
- }
-
- }
-
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << TQString("No part made active although %1/%2 got event").arg(obj->name()).arg(obj->className()) << endl;
-#endif
- return false;
-}
-
-Part * PartManager::findPartFromWidget( TQWidget * widget, const TQPoint &pos )
-{
- TQPtrListIterator<Part> it ( d->m_parts );
- for ( ; it.current() ; ++it )
- {
- Part *part = it.current()->hitTest( widget, pos );
- if ( part && d->m_parts.findRef( part ) != -1 )
- return part;
- }
- return 0L;
-}
-
-Part * PartManager::findPartFromWidget( TQWidget * widget )
-{
- TQPtrListIterator<Part> it ( d->m_parts );
- for ( ; it.current() ; ++it )
- {
- if ( widget == it.current()->widget() )
- return it.current();
- }
- return 0L;
-}
-
-void PartManager::addPart( Part *part, bool setActive )
-{
- if ( d->m_parts.findRef( part ) != -1 ) // don't add parts more than once :)
- {
-#ifdef DEBUG_PARTMANAGER
- kdWarning(1000) << k_funcinfo << part << " already added" << kdBacktrace(5) << endl;
-#endif
- return;
- }
-
- d->m_parts.append( part );
-
- part->setManager( this );
-
- if ( setActive )
- {
- setActivePart( part );
- if ( part->widget() )
- part->widget()->setFocus();
- }
-
- // Prevent focus problems
- if ( part->widget() && part->widget()->focusPolicy() == TQ_NoFocus )
- {
- kdWarning(1000) << "Part '" << part->name() << "' has a widget " << part->widget()->name() << " with a focus policy of NoFocus. It should have at least a ClickFocus policy, for part activation to work well." << endl;
- }
- if ( part->widget() && part->widget()->focusPolicy() == TQ_TabFocus )
- {
- kdWarning(1000) << "Part '" << part->name() << "' has a widget " << part->widget()->name() << " with a focus policy of TabFocus. It should have at least a ClickFocus policy, for part activation to work well." << endl;
- }
-
- if ( setActive && part->widget() )
- part->widget()->show();
- emit partAdded( part );
-}
-
-void PartManager::removePart( Part *part )
-{
- if ( d->m_parts.findRef( part ) == -1 )
- {
- kdFatal(1000) << TQString(TQString("Can't remove part %1, not in KPartManager's list.").arg(part->name())) << endl;
- return;
- }
-
- //Warning. The part could be already deleted
- //kdDebug(1000) << TQString("Part %1 removed").arg(part->name()) << endl;
- int nb = d->m_parts.count();
- bool ok = d->m_parts.removeRef( part );
- Q_ASSERT( ok );
- Q_ASSERT( (int)d->m_parts.count() == nb-1 );
- part->setManager(0);
-
- emit partRemoved( part );
-
- if ( part == d->m_activePart )
- setActivePart( 0 );
- if ( part == d->m_selectedPart )
- setSelectedPart( 0 );
-}
-
-void PartManager::replacePart( Part * oldPart, Part * newPart, bool setActive )
-{
- //kdDebug(1000) << "replacePart " << oldPart->name() << "-> " << newPart->name() << " setActive=" << setActive << endl;
- // This methods does exactly removePart + addPart but without calling setActivePart(0) in between
- if ( d->m_parts.findRef( oldPart ) == -1 )
- {
- kdFatal(1000) << TQString(TQString("Can't remove part %1, not in KPartManager's list.").arg(oldPart->name())) << endl;
- return;
- }
-
- d->m_parts.removeRef( oldPart );
- oldPart->setManager(0);
-
- emit partRemoved( oldPart );
-
- addPart( newPart, setActive );
-}
-
-void PartManager::setActivePart( Part *part, TQWidget *widget )
-{
- if ( part && d->m_parts.findRef( part ) == -1 )
- {
- kdWarning( 1000 ) << "PartManager::setActivePart : trying to activate a non-registered part! " << part->name() << endl;
- return; // don't allow someone call setActivePart with a part we don't know about
- }
-
- //check whether nested parts are disallowed and activate the top parent part then, by traversing the
- //tree recursively (Simon)
- if ( part && !d->m_bAllowNestedParts )
- {
- TQObject *parentPart = TQT_TQOBJECT(part->parent()); // ### this relies on people using KParts::Factory!
- if ( parentPart && parentPart->inherits( "KParts::Part" ) )
- {
- KParts::Part *parPart = static_cast<KParts::Part *>( parentPart );
- setActivePart( parPart, parPart->widget() );
- return;
- }
- }
-
-#ifdef DEBUG_PARTMANAGER
- kdDebug(1000) << "PartManager::setActivePart d->m_activePart=" << d->m_activePart << "<->part=" << part
- << " d->m_activeWidget=" << d->m_activeWidget << "<->widget=" << widget << endl;
-#endif
-
- // don't activate twice
- if ( d->m_activePart && part && d->m_activePart == part &&
- (!widget || d->m_activeWidget == widget) )
- return;
-
- KParts::Part *oldActivePart = d->m_activePart;
- TQWidget *oldActiveWidget = d->m_activeWidget;
-
- setSelectedPart( 0L );
-
- d->m_activePart = part;
- d->m_activeWidget = widget;
-
- if ( oldActivePart )
- {
- KParts::Part *savedActivePart = part;
- TQWidget *savedActiveWidget = widget;
-
- PartActivateEvent ev( false, oldActivePart, oldActiveWidget );
- TQApplication::sendEvent( oldActivePart, &ev );
- if ( oldActiveWidget )
- {
- disconnect( oldActiveWidget, TQT_SIGNAL( destroyed() ),
- this, TQT_SLOT( slotWidgetDestroyed() ) );
- TQApplication::sendEvent( oldActiveWidget, &ev );
- }
-
- d->m_activePart = savedActivePart;
- d->m_activeWidget = savedActiveWidget;
- }
-
- if ( d->m_activePart )
- {
- if ( !widget )
- d->m_activeWidget = part->widget();
-
- PartActivateEvent ev( true, d->m_activePart, d->m_activeWidget );
- TQApplication::sendEvent( d->m_activePart, &ev );
- if ( d->m_activeWidget )
- {
- connect( d->m_activeWidget, TQT_SIGNAL( destroyed() ),
- this, TQT_SLOT( slotWidgetDestroyed() ) );
- TQApplication::sendEvent( d->m_activeWidget, &ev );
- }
- }
- // Set the new active instance in TDEGlobal
- setActiveInstance( d->m_activePart ? d->m_activePart->instance() : 0L );
-
- kdDebug(1000) << this << " emitting activePartChanged " << d->m_activePart << endl;
- emit activePartChanged( d->m_activePart );
-}
-
-void PartManager::setActiveInstance( TDEInstance * instance )
-{
- // It's a separate method to allow redefining this behavior
- TDEGlobal::_activeInstance = instance;
-}
-
-Part *PartManager::activePart() const
-{
- return d->m_activePart;
-}
-
-TQWidget *PartManager::activeWidget() const
-{
- return d->m_activeWidget;
-}
-
-void PartManager::setSelectedPart( Part *part, TQWidget *widget )
-{
- if ( part == d->m_selectedPart && widget == d->m_selectedWidget )
- return;
-
- Part *oldPart = d->m_selectedPart;
- TQWidget *oldWidget = d->m_selectedWidget;
-
- d->m_selectedPart = part;
- d->m_selectedWidget = widget;
-
- if ( part && !widget )
- d->m_selectedWidget = part->widget();
-
- if ( oldPart )
- {
- PartSelectEvent ev( false, oldPart, oldWidget );
- TQApplication::sendEvent( oldPart, &ev );
- TQApplication::sendEvent( oldWidget, &ev );
- }
-
- if ( d->m_selectedPart )
- {
- PartSelectEvent ev( true, d->m_selectedPart, d->m_selectedWidget );
- TQApplication::sendEvent( d->m_selectedPart, &ev );
- TQApplication::sendEvent( d->m_selectedWidget, &ev );
- }
-}
-
-Part *PartManager::selectedPart() const
-{
- return d->m_selectedPart;
-}
-
-TQWidget *PartManager::selectedWidget() const
-{
- return d->m_selectedWidget;
-}
-
-void PartManager::slotObjectDestroyed()
-{
- kdDebug(1000) << "KPartManager::slotObjectDestroyed()" << endl;
- removePart( const_cast<Part *>( static_cast<const Part *>( sender() ) ) );
-}
-
-void PartManager::slotWidgetDestroyed()
-{
- kdDebug(1000) << "KPartsManager::slotWidgetDestroyed()" << endl;
- if ( static_cast<const TQWidget *>( sender() ) == d->m_activeWidget )
- setActivePart( 0L ); //do not remove the part because if the part's widget dies, then the
- //part will delete itself anyway, invoking removePart() in its destructor
-}
-
-const TQPtrList<Part> *PartManager::parts() const
-{
- return &d->m_parts;
-}
-
-void PartManager::addManagedTopLevelWidget( const TQWidget *topLevel )
-{
- if ( !topLevel->isTopLevel() )
- return;
-
- if ( d->m_managedTopLevelWidgets.containsRef( topLevel ) )
- return;
-
- d->m_managedTopLevelWidgets.append( topLevel );
- connect( topLevel, TQT_SIGNAL( destroyed() ),
- this, TQT_SLOT( slotManagedTopLevelWidgetDestroyed() ) );
-}
-
-void PartManager::removeManagedTopLevelWidget( const TQWidget *topLevel )
-{
- if ( !topLevel->isTopLevel() )
- return;
-
- if ( d->m_managedTopLevelWidgets.findRef( topLevel ) == -1 )
- return;
-
- d->m_managedTopLevelWidgets.remove();
-}
-
-void PartManager::slotManagedTopLevelWidgetDestroyed()
-{
- const TQWidget *widget = static_cast<const TQWidget *>( sender() );
- removeManagedTopLevelWidget( widget );
-}
-
-int PartManager::reason() const
-{
- return d->m_reason;
-}
-
-void PartManager::virtual_hook( int, void* )
-{ /*BASE::virtual_hook( id, data );*/ }
-
-#include "partmanager.moc"
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