/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <controls/filectrl.hxx>

#include <com/sun/star/ui/dialogs/FilePicker.hpp>

#include <com/sun/star/ui/dialogs/TemplateDescription.hpp>

#include <comphelper/processfactory.hxx>

#include <osl/file.h>

#include <svl/svlresid.hxx>

#include <svl/svl.hrc>

#include <unotools/resmgr.hxx>

#include <comphelper/diagnose_ex.hxx>

#include <tools/urlobj.hxx>

#include <vcl/toolkit/edit.hxx>

using namespace ::com::sun::star::uno;

using namespace ::com::sun::star::ui;

FileControl::FileControl( vcl::Window* pParent, WinBits nStyle ) :

    Window( pParent, nStyle|WB_DIALOGCONTROL ),

    maEdit( VclPtr<Edit>::Create(this, (nStyle&(~WB_BORDER))|WB_NOTABSTOP) ),

    maButton( VclPtr<PushButton>::Create( this, (nStyle&(~WB_BORDER))|WB_NOLIGHTBORDER|WB_NOPOINTERFOCUS|WB_NOTABSTOP ) ),

    maButtonText( SvlResId(STR_FILECTRL_BUTTONTEXT) ),

    mnInternalFlags( FileControlMode_Internal::ORIGINALBUTTONTEXT )

{

    maButton->SetClickHdl( LINK( this, FileControl, ButtonHdl ) );

    maButton->Show();

    maEdit->Show();

    SetCompoundControl( true );

    SetStyle( ImplInitStyle( GetStyle() ) );

}

Unexecuted instantiation: FileControl::FileControl(vcl::Window*, long)

Unexecuted instantiation: FileControl::FileControl(vcl::Window*, long)

WinBits FileControl::ImplInitStyle( WinBits nStyle )

{

    if ( !( nStyle & WB_NOTABSTOP ) )

    {

        maEdit->SetStyle( (maEdit->GetStyle()|WB_TABSTOP)&(~WB_NOTABSTOP) );

        maButton->SetStyle( (maButton->GetStyle()|WB_TABSTOP)&(~WB_NOTABSTOP) );

    }

    else

    {

        maEdit->SetStyle( (maEdit->GetStyle()|WB_NOTABSTOP)&(~WB_TABSTOP) );

        maButton->SetStyle( (maButton->GetStyle()|WB_NOTABSTOP)&(~WB_TABSTOP) );

    }

    const WinBits nAlignmentStyle = ( WB_TOP | WB_VCENTER | WB_BOTTOM );

    maEdit->SetStyle( ( maEdit->GetStyle() & ~nAlignmentStyle ) | ( nStyle & nAlignmentStyle ) );

    if ( !(nStyle & WB_NOGROUP) )

        nStyle |= WB_GROUP;

    if ( !(nStyle & WB_NOBORDER ) )

        nStyle |= WB_BORDER;

    nStyle &= ~WB_TABSTOP;

    return nStyle;

}

FileControl::~FileControl()

{

    disposeOnce();

}

void FileControl::dispose()

{

    maEdit.disposeAndClear();

    maButton.disposeAndClear();

    Window::dispose();

}

void FileControl::SetText( const OUString& rStr )

{

    maEdit->SetText( rStr );

}

OUString FileControl::GetText() const

{

    return maEdit->GetText();

}

void FileControl::StateChanged( StateChangedType nType )

{

    if ( nType == StateChangedType::Enable )

    {

        maEdit->Enable( IsEnabled() );

        maButton->Enable( IsEnabled() );

    }

    else if ( nType == StateChangedType::Zoom )

    {

        GetEdit().SetZoom( GetZoom() );

        GetButton().SetZoom( GetZoom() );

    }

    else if ( nType == StateChangedType::Style )

    {

        SetStyle( ImplInitStyle( GetStyle() ) );

    }

    else if ( nType == StateChangedType::ControlFont )

    {

        GetEdit().SetControlFont( GetControlFont() );

        // Only use height of the button, as in HTML

        // always Courier is used

        vcl::Font aFont = GetButton().GetControlFont();

        aFont.SetFontSize( GetControlFont().GetFontSize() );

        GetButton().SetControlFont( aFont );

    }

    else if ( nType == StateChangedType::ControlForeground )

    {

        GetEdit().SetControlForeground( GetControlForeground() );

        GetButton().SetControlForeground( GetControlForeground() );

    }

    else if ( nType == StateChangedType::ControlBackground )

    {

        GetEdit().SetControlBackground( GetControlBackground() );

        GetButton().SetControlBackground( GetControlBackground() );

    }

    Window::StateChanged( nType );

}

void FileControl::Resize()

{

    static const tools::Long ButtonBorder = 10;

    if( mnInternalFlags & FileControlMode_Internal::INRESIZE )

        return;

    mnInternalFlags |= FileControlMode_Internal::INRESIZE;//InResize = sal_True

    Size aOutSz = GetOutputSizePixel();

    tools::Long nButtonTextWidth = maButton->GetTextWidth( maButtonText );

    if ( !(mnInternalFlags & FileControlMode_Internal::ORIGINALBUTTONTEXT) ||

         ( nButtonTextWidth < aOutSz.Width()/3 ) )

    {

        maButton->SetText( maButtonText );

    }

    else

    {

        OUString aSmallText( u"..."_ustr );

        maButton->SetText( aSmallText );

        nButtonTextWidth = maButton->GetTextWidth( aSmallText );

    }

    tools::Long nButtonWidth = nButtonTextWidth+ButtonBorder;

    maEdit->setPosSizePixel( 0, 0, aOutSz.Width()-nButtonWidth, aOutSz.Height() );

    maButton->setPosSizePixel( aOutSz.Width()-nButtonWidth, 0, nButtonWidth, aOutSz.Height() );

    mnInternalFlags &= ~FileControlMode_Internal::INRESIZE; //InResize = sal_False

}

void FileControl::GetFocus()

{

    if (!maEdit || maEdit->isDisposed())

        return;

    maEdit->GrabFocus();

}

void FileControl::SetEditModifyHdl( const Link<Edit&,void>& rLink )

{

    if (!maEdit || maEdit->isDisposed())

        return;

    maEdit->SetModifyHdl(rLink);

}

void FileControl::Draw( OutputDevice* pDev, const Point& rPos, SystemTextColorFlags nFlags )

{

    WinBits nOldEditStyle = GetEdit().GetStyle();

    if ( GetStyle() & WB_BORDER )

        GetEdit().SetStyle( nOldEditStyle|WB_BORDER );

    Size aOrigSize(GetEdit().GetSizePixel());

    GetEdit().SetSizePixel(GetSizePixel());

    GetEdit().Draw( pDev, rPos, nFlags );

    GetEdit().SetSizePixel(aOrigSize);

    if ( GetStyle() & WB_BORDER )

        GetEdit().SetStyle( nOldEditStyle );

}

IMPL_LINK_NOARG(FileControl, ButtonHdl, Button*, void)

{

    try

    {

        const Reference< XComponentContext >& xContext = comphelper::getProcessComponentContext();

        Reference < dialogs::XFilePicker3 > xFilePicker = dialogs::FilePicker::createWithMode( xContext, dialogs::TemplateDescription::FILEOPEN_SIMPLE );

        // transform the system notation text into a file URL

        OUString sSystemNotation = GetText(), sFileURL;

        oslFileError nError = osl_getFileURLFromSystemPath( sSystemNotation.pData, &sFileURL.pData );

        if ( nError == osl_File_E_INVAL )

            sFileURL = GetText();   // #97709# Maybe URL is already a file URL...

        //#90430# Check if URL is really a file URL

        OUString aTmp;

        if ( osl_getSystemPathFromFileURL( sFileURL.pData, &aTmp.pData ) == osl_File_E_None )

        {

            // initially set this directory

            xFilePicker->setDisplayDirectory( sFileURL );

        }

        if ( xFilePicker->execute() )

        {

            Sequence < OUString > aPathSeq = xFilePicker->getSelectedFiles();

            if ( aPathSeq.hasElements() )

            {

                OUString aNewText = aPathSeq[0];

                INetURLObject aObj( aNewText );

                if ( aObj.GetProtocol() == INetProtocol::File )

                    aNewText = aObj.PathToFileName();

                SetText( aNewText );

                maEdit->GetModifyHdl().Call( *maEdit );

            }

        }

    }

    catch( const Exception& )

    {

        TOOLS_WARN_EXCEPTION( "toolkit", "FileControl::ImplBrowseFile: caught an exception while executing the file picker!" );

    }

}

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