/***************************************************************************
 *                                                                         *
 *   begin        : 15 Jan 2004                                            *
 *   copyright    : (C) 2003 by Samokhvalov Anton <red____hat@mail.ru> :)  *
 *                                                                         *
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include <qaccel.h>
#include <qtoolbutton.h>

#include <khtmlview.h>
#include <kiconloader.h>
#include <kaction.h>
#include <kstdaction.h>
#include <kshortcut.h>
#include <klocale.h>

#include "TabbedHtml.h"
#include "MainView.h"
#include "TopicTree.h"
#include "History.h"

TabbedHtml::TabbedHtml( const QString& f_name, KActionCollection* ac,
	QWidget* parent, MainView* parent1, const char* name ):
	KTabWidget( parent, name ),
	d_fname( f_name ),
	d_parent( parent1 ),
	d_ac( ac ),
	d_close_page( 0 ),
	d_new_page( 0 )
{
	QAccel* accel = new QAccel( this );
	accel->connectItem( accel->insertItem( SHIFT+Key_Right ), this, SLOT(slotPrevTab()) );
	accel->connectItem( accel->insertItem( SHIFT+Key_Left ), this, SLOT(slotNextTab()) );

	KStdAction::copy( this, SLOT(slotCopy()), d_ac, "edit_copy" )->setEnabled( false );
	new KAction( i18n( "Copy &Link Address" ), "editcopy",
		KShortcut(), this, SLOT(slotCopyURL()), d_ac, "edit_copy_url" );
	KStdAction::selectAll( this, SLOT(slotSelectAll()), d_ac, "edit_select_all" );
				   
	setTabPosition( Bottom );

	d_close_page = new QToolButton( this , "d_close_page" );
	d_close_page->setAutoRaise( true );
	d_close_page->setIconSet( SmallIconSet( "view_remove" ) );
	d_close_page->setMaximumWidth( 20 );
	d_close_page->setMaximumHeight( 20 );
	d_close_page->setEnabled( false );
	setCornerWidget( d_close_page, Qt::BottomRight );

	d_new_page = new QToolButton( this , "d_new_page" );
	d_new_page->setAutoRaise( true );
	d_new_page->setIconSet( SmallIconSet( "tab_new" ) );
	d_new_page->setMaximumWidth( 20 );
	d_new_page->setMaximumHeight( 20 );
	setCornerWidget( d_new_page, Qt::BottomLeft );

	HtmlView* part = new HtmlView( d_fname, d_ac, parent, parent1, "d_html_view" );
	connect( part, SIGNAL(setCaption(HtmlView*,const QString&)),
		this, SLOT(slotSetCaption(HtmlView*,const QString&)) );
	addTab( part->view(), ( "Empty" ) );

	connect( d_close_page, SIGNAL(clicked()), this, SLOT(slotClosePage()) );
	connect( d_new_page, SIGNAL(clicked()), this, SLOT(slotDuplicatePage()) );
	connect( this, SIGNAL(currentChanged(QWidget*)),
		this, SLOT(slotCurrentTabChanged(QWidget*)) );
}

TabbedHtml::~TabbedHtml()
{
}

void TabbedHtml::setFileName( const QString& fname )
{
	d_fname = fname;
	
	for ( int i = 0; i < count(); i++ )
	{
		ToPart( page(i) )->setFileName( fname );
	}
}

void TabbedHtml::slotSetUrl( QListViewItem* item )
{
	currentView()->slotSetUrl( item );
}

void TabbedHtml::slotSetUrl( const KURL& url )
{
	currentView()->slotSetUrl( url );
}

void TabbedHtml::up()
{
	currentView()->up();
}

void TabbedHtml::back()
{
	currentView()->back();
}

void TabbedHtml::forward()
{
	currentView()->forward();
}

HtmlView* TabbedHtml::currentView()
{
	return (HtmlView*)((KHTMLView*)currentPage())->part();
}

void TabbedHtml::slotClosePage()
{
	if ( count() > 1 )
	{
		delete currentPage();
		
		if ( count() == 1 )
		{
			d_close_page->setEnabled( false );
		}
	}
}

void TabbedHtml::slotDuplicatePage()
{
	HtmlView* part = new HtmlView( d_fname, d_ac, d_parent, d_parent, "d_html_view" );
	connect( part, SIGNAL(setCaption(HtmlView*,const QString&)),
		this, SLOT(slotSetCaption(HtmlView*,const QString&)) );
	QListViewItem* item = d_parent->getTopicTree()->currentItem();
	part->slotSetUrl( item );
	addTab( part->view(), item?item->text(0):i18n( "Empty" ) );
	
	setCurrentPage( count() - 1 );
	
	d_close_page->setEnabled( true );
}

void TabbedHtml::slotPrevTab()
{
	if ( !count() )
	{
		return;
	}
	
	setCurrentPage( (currentPageIndex() + 1) % count() );
}

void TabbedHtml::slotNextTab()
{
	if ( !count() )
	{
		return;
	}
	
	setCurrentPage( (currentPageIndex() + count() - 1) % count() );
}

void TabbedHtml::slotSetCaption( HtmlView* part, const QString& caption )
{
	changeTab( part->view(), caption );
}

void TabbedHtml::setZoomFactor( int percents )
{
	for ( int i = 0; i < count(); i++ )
	{
		ToPart( page(i) )->setZoomFactor( percents );
	}
}

void TabbedHtml::slotCopy()
{
	currentView()->slotCopy();
}

void TabbedHtml::slotCopyURL()
{
	currentView()->slotCopyURL();
}

void TabbedHtml::slotSelectAll()
{
	currentView()->slotSelectAll();
}

void TabbedHtml::slotCurrentTabChanged( QWidget* tab )
{
	HtmlView* part = ToPart( tab );

	for ( int i = 0; i < count(); i++ )
	{
		disconnect( ToPart( page(i) )->getHistory(),
			SIGNAL(stateChanged(bool,bool,bool)), 0, 0 );
		disconnect( ToPart( page(i) )->getHistory(),
			SIGNAL(goUp()), 0, 0 );
	}

	connect( part->getHistory(), SIGNAL(stateChanged(bool,bool,bool)),
		d_parent, SLOT(slotChangeState(bool,bool,bool)) );
	connect( part->getHistory(), SIGNAL(goUp()),
		d_parent->getTopicTree(), SLOT(slotGoUp()) );
	
	part->updateState();
}

#include "TabbedHtml.moc"