editorproxy.cpp

#include <tqwidget.h>
#include <tqpopupmenu.h>
#include <tqtimer.h>
 
#include <kdebug.h>
#include <tdeconfig.h>
#include <tdeapplication.h>
 
#include <tdeparts/part.h>
 
#include <tdetexteditor/document.h>
#include <tdetexteditor/view.h>
#include <tdetexteditor/viewcursorinterface.h>
#include <tdetexteditor/popupmenuinterface.h>
#include <tdetexteditor/editinterface.h>
#include <tdetexteditor/selectioninterface.h>
#include <tdetexteditor/view.h>
#include <kxmlguiclient.h>
#include <kxmlguifactory.h>
#include <tdemainwindow.h>
#include <tdeactioncollection.h>
#include <tdelocale.h>
#include <tdestdaccel.h>
 
#include "toplevel.h"
#include "partcontroller.h"
#include "core.h"
#include "multibuffer.h"
#include "kdeveditorutil.h"
 
#include "editorproxy.h"
 
using namespace KTextEditor;
 
EditorProxy *EditorProxy::s_instance = 0;
 
 
EditorProxy::EditorProxy()
  : TQObject()
{
    m_delayedLineTimer = new TQTimer( this );
    connect( m_delayedLineTimer,  TQ_SIGNAL( timeout() ), this, TQ_SLOT(setLineNumberDelayed()) );
    TDEConfig *config = kapp->config();
 
    m_delayedViewCreationCompatibleUI = true;
 
    TDEAction *ac = new TDEAction( i18n("Show Context Menu"), 0, this,
        TQ_SLOT(showPopup()), TopLevel::getInstance()->main()->actionCollection(), "show_popup" );
    TDEShortcut cut ;/*= TDEStdAccel::shortcut(TDEStdAccel::PopupMenuContext);*/
    cut.append(KKey(CTRL+Key_Return));
    ac->setShortcut(cut);
}
 
 
EditorProxy *EditorProxy::getInstance()
{
  if (!s_instance)
    s_instance = new EditorProxy;
 
  return s_instance;
}
 
void EditorProxy::setLineNumberDelayed()
{
    if( !this ) return; 
  setLineNumber(m_delayedPart, m_delayedLine, m_delayedCol);
}
 
 
void EditorProxy::setLineNumber(KParts::Part *part, int lineNum, int col)
{
  if (!part || !part->inherits("KTextEditor::Document"))
    return;
 
  if ( lineNum < 0 )
    return;
 
  KURL url = dynamic_cast<KParts::ReadOnlyPart*>( part )->url();
  ViewCursorInterface *iface = dynamic_cast<ViewCursorInterface*>(part->widget());
  if (iface)
  {
     iface->setCursorPositionReal(lineNum, col == -1 ? 0 : col);
  }
  else {
    // Save the position for a rainy day (or when the view gets activated and wants its position)
    for (TQValueList<MultiBuffer*>::ConstIterator it = m_editorParts.begin(); it != m_editorParts.end(); ++it)
        if ((*it)->hasURL( url )) {
            (*it)->registerDelayedActivation( part, lineNum, col );
        return;
      }
 
    // Shouldn't hit this?
    Q_ASSERT(false);
  }
}
 
void EditorProxy::installPopup( KParts::Part * part )
{
 
    if ( part->inherits("KTextEditor::Document") && part->widget())
    {
        PopupMenuInterface *iface = dynamic_cast<PopupMenuInterface*>(part->widget());
        if (iface)
        {
            KTextEditor::View * view = static_cast<KTextEditor::View*>( part->widget() );
 
            TQPopupMenu * popup = static_cast<TQPopupMenu*>( part->factory()->container("tdetexteditor_popup", view ) );
 
            if (!popup)
            {
                kdWarning() << k_funcinfo << "Popup not found!" << endl;
                return;
            }
 
            TDEAction * action = NULL;
            //If there is a tab for this file, we don't need to plug the closing menu entries here
            TDEConfig *config = TDEGlobal::config();
            config->setGroup("UI");
            bool m_tabBarShown = ! config->readNumEntry("TabWidgetVisibility", 0);
            if (!m_tabBarShown)
            {
                action = TopLevel::getInstance()->main()->actionCollection()->action( "file_close" );
                if ( action && !action->isPlugged( popup ) )
                {
                    popup->insertSeparator( 0 );
                    action->plug( popup, 0 );
                }
                action = TopLevel::getInstance()->main()->actionCollection()->action( "file_closeother" );
                if ( action && !action->isPlugged( popup ) )
                    action->plug( popup, 1 );
            }
 
            iface->installPopup( popup );
 
            connect(popup, TQ_SIGNAL(aboutToShow()), this, TQ_SLOT(popupAboutToShow()));
 
            // ugly hack: mark the "original" items
            m_popupIds.resize(popup->count());
            for (uint index=0; index < popup->count(); ++index)
                m_popupIds[index] = popup->idAt(index);
        }
    }
}
 
void EditorProxy::popupAboutToShow()
{
    TQPopupMenu *popup = (TQPopupMenu*)sender();
    if (!popup)
    return;
    
    // ugly hack: remove all but the "original" items
    for (int index=popup->count()-1; index >= 0; --index)
    {
        int id = popup->idAt(index);
        if (m_popupIds.contains(id) == 0)
        {
            TQMenuItem *item = popup->findItem(id);
            if ( item && item->popup() )
                delete item->popup();
            else
                popup->removeItemAt(index);
        } 
    }
 
    KTextEditor::Document * doc = dynamic_cast<KTextEditor::Document*>( PartController::getInstance()->activePart() );
    if (!doc ) return;
 
    unsigned int line;
    unsigned int col;
    if ( !KDevEditorUtil::currentPositionReal( &line, &col, doc ) ) return;
 
    TQString wordstr;
    TQString selection = KDevEditorUtil::currentSelection( doc );
    if ( !selection.isEmpty() && selection.contains('\n') != 0 )
    {
        wordstr = selection;
    }
    else
    {
        wordstr = KDevEditorUtil::currentWord( doc );
    }
 
    TQString linestr = KDevEditorUtil::currentLine( doc );
    
    EditorContext context( doc->url(), line, col, linestr, wordstr );
    Core::getInstance()->fillContextMenu( popup, &context );
 
    // Remove redundant separators (any that are first, last, or doubled)
    bool lastWasSeparator = true;
    for( uint i = 0; i < popup->count(); ) 
    {
        int id = popup->idAt( i );
        if( lastWasSeparator && popup->findItem( id )->isSeparator() ) 
        {
            popup->removeItem( id );
            // Since we removed an item, don't increment i
        } else 
        {
            lastWasSeparator = false;
            i++;
        }
    }
    if( lastWasSeparator && popup->count() > 0 )
        popup->removeItem( popup->idAt( popup->count() - 1 ) );
}
 
void EditorProxy::showPopup( )
{
    kdDebug(9000) << k_funcinfo << endl;
 
    if ( KParts::Part * part = PartController::getInstance()->activePart() )
    {
        ViewCursorInterface *iface = dynamic_cast<ViewCursorInterface*>( part->widget() );
        if ( iface )
        {
            KTextEditor::View * view = static_cast<KTextEditor::View*>( part->widget() );
            TQPopupMenu * popup = static_cast<TQPopupMenu*>( view->factory()->container("tdetexteditor_popup", view ) );
 
            if ( popup )
            {
                popup->exec( view->mapToGlobal( iface->cursorCoordinates() ) );
            }
        }
    }
}
 
void EditorProxy::registerEditor(MultiBuffer* wrapper)
{
  m_editorParts.append(wrapper);
}
 
void EditorProxy::deregisterEditor(MultiBuffer* wrapper)
{
  m_editorParts.remove(wrapper);
}
 
TQWidget * EditorProxy::widgetForPart( KParts::Part * part )
{
    if ( !part ) return 0;
 
    if (part->widget())
        return part->widget();
 
    KURL url = dynamic_cast<KParts::ReadOnlyPart*>( part )->url();
 
    for (TQValueList<MultiBuffer*>::ConstIterator it = m_editorParts.begin(); it != m_editorParts.end(); ++it)
        if ((*it)->hasURL( url ))
            return *it;
 
    return 0L;
}
 
TQWidget * EditorProxy::topWidgetForPart( KParts::Part * part )
{
    if ( !part ) return 0;
 
    KURL url = dynamic_cast<KParts::ReadOnlyPart*>( part )->url();
 
    for (TQValueList<MultiBuffer*>::ConstIterator it = m_editorParts.begin(); it != m_editorParts.end(); ++it)
        if ((*it)->hasURL( url ))
            return *it;
 
    if (part->widget())
        return part->widget();
 
    return 0L;
}
 
bool EditorProxy::isDelayedViewCapable( )
{
    return m_delayedViewCreationCompatibleUI;
}
 
TQWidget *EditorProxy::findPartWidget(KParts::Part *part)
{
    for (TQValueList<MultiBuffer*>::ConstIterator it = m_editorParts.begin(); it != m_editorParts.end(); ++it)
        if ((*it)->hasPart(part))
            return *it;
 
    if (part->widget())
        return part->widget();
 
    return 0L;
}
 
#include "editorproxy.moc"