/* -*- 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 <uielement/dropdownboxtoolbarcontroller.hxx>

#include <com/sun/star/beans/PropertyValue.hpp>

#include <comphelper/propertyvalue.hxx>

#include <vcl/InterimItemWindow.hxx>

#include <svtools/toolboxcontroller.hxx>

#include <vcl/svapp.hxx>

#include <vcl/toolbox.hxx>

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

using namespace css::uno;

using namespace css::beans;

using namespace css::frame;

namespace framework

{

// Wrapper class to notify controller about events from ListBox.

// Unfortunaltly the events are notified through virtual methods instead

// of Listeners.

class ListBoxControl final : public InterimItemWindow

{

public:

    ListBoxControl(vcl::Window* pParent, DropdownToolbarController* pListBoxListener);

    virtual ~ListBoxControl() override;

    virtual void dispose() override;

    void set_active(int nPos) { m_xWidget->set_active(nPos); }

    void append_text(const OUString& rStr) { m_xWidget->append_text(rStr); }

    void insert_text(int nPos, const OUString& rStr) { m_xWidget->insert_text(nPos, rStr); }

    int get_count() const { return m_xWidget->get_count(); }

    int find_text(const OUString& rStr) const { return m_xWidget->find_text(rStr); }

    OUString get_active_text() const { return m_xWidget->get_active_text(); }

    void clear() { return m_xWidget->clear(); }

    void remove(int nPos) { m_xWidget->remove(nPos); }

    DECL_LINK(FocusInHdl, weld::Widget&, void);

    DECL_LINK(FocusOutHdl, weld::Widget&, void);

    DECL_LINK(ModifyHdl, weld::ComboBox&, void);

    DECL_LINK(KeyInputHdl, const ::KeyEvent&, bool);

private:

    std::unique_ptr<weld::ComboBox> m_xWidget;

    DropdownToolbarController* m_pListBoxListener;

};

ListBoxControl::ListBoxControl(vcl::Window* pParent, DropdownToolbarController* pListBoxListener)

    : InterimItemWindow(pParent, u"svt/ui/listcontrol.ui"_ustr, u"ListControl"_ustr)

    , m_xWidget(m_xBuilder->weld_combo_box(u"listbox"_ustr))

    , m_pListBoxListener( pListBoxListener )

{

    InitControlBase(m_xWidget.get());

    m_xWidget->connect_focus_in(LINK(this, ListBoxControl, FocusInHdl));

    m_xWidget->connect_focus_out(LINK(this, ListBoxControl, FocusOutHdl));

    m_xWidget->connect_changed(LINK(this, ListBoxControl, ModifyHdl));

    m_xWidget->connect_key_press(LINK(this, ListBoxControl, KeyInputHdl));

    m_xWidget->set_size_request(42, -1); // so a later narrow size request can stick

    SetSizePixel(get_preferred_size());

}

Unexecuted instantiation: framework::ListBoxControl::ListBoxControl(vcl::Window*, framework::DropdownToolbarController*)

Unexecuted instantiation: framework::ListBoxControl::ListBoxControl(vcl::Window*, framework::DropdownToolbarController*)

IMPL_LINK(ListBoxControl, KeyInputHdl, const ::KeyEvent&, rKEvt, bool)

{

    return ChildKeyInput(rKEvt);

}

ListBoxControl::~ListBoxControl()

{

    disposeOnce();

}

void ListBoxControl::dispose()

{

    m_pListBoxListener = nullptr;

    m_xWidget.reset();

    InterimItemWindow::dispose();

}

IMPL_LINK_NOARG(ListBoxControl, ModifyHdl, weld::ComboBox&, void)

{

    if (m_pListBoxListener)

        m_pListBoxListener->Select();

}

IMPL_LINK_NOARG(ListBoxControl, FocusInHdl, weld::Widget&, void)

{

    if (m_pListBoxListener)

        m_pListBoxListener->GetFocus();

}

IMPL_LINK_NOARG(ListBoxControl, FocusOutHdl, weld::Widget&, void)

{

    if (m_pListBoxListener)

        m_pListBoxListener->LoseFocus();

}

DropdownToolbarController::DropdownToolbarController(

    const Reference< XComponentContext >&    rxContext,

    const Reference< XFrame >&               rFrame,

    ToolBox*                                 pToolbar,

    ToolBoxItemId                            nID,

    sal_Int32                                nWidth,

    const OUString&                          aCommand ) :

    ComplexToolbarController( rxContext, rFrame, pToolbar, nID, aCommand )

    ,   m_pListBoxControl( nullptr )

{

    m_pListBoxControl = VclPtr<ListBoxControl>::Create(m_xToolbar, this);

    if ( nWidth == 0 )

        nWidth = 100;

    // ListBoxControl ctor has set a suitable height already

    auto nHeight = m_pListBoxControl->GetSizePixel().Height();

    m_pListBoxControl->SetSizePixel( ::Size( nWidth, nHeight ));

    m_xToolbar->SetItemWindow( m_nID, m_pListBoxControl );

}

DropdownToolbarController::~DropdownToolbarController()

{

}

void SAL_CALL DropdownToolbarController::dispose()

{

    SolarMutexGuard aSolarMutexGuard;

    m_xToolbar->SetItemWindow( m_nID, nullptr );

    m_pListBoxControl.disposeAndClear();

    ComplexToolbarController::dispose();

}

Sequence<PropertyValue> DropdownToolbarController::getExecuteArgs(sal_Int16 KeyModifier) const

{

    OUString aSelectedText = m_pListBoxControl->get_active_text();

    // Add key modifier to argument list

    Sequence<PropertyValue> aArgs{ comphelper::makePropertyValue(u"KeyModifier"_ustr, KeyModifier),

                                   comphelper::makePropertyValue(u"Text"_ustr, aSelectedText) };

    return aArgs;

}

void DropdownToolbarController::Select()

{

    if (m_pListBoxControl->get_count() > 0)

        execute(0);

}

void DropdownToolbarController::GetFocus()

{

    notifyFocusGet();

}

void DropdownToolbarController::LoseFocus()

{

    notifyFocusLost();

}

void DropdownToolbarController::executeControlCommand( const css::frame::ControlCommand& rControlCommand )

{

    if ( rControlCommand.Command == "SetList" )

    {

        for ( const NamedValue& rArg : rControlCommand.Arguments )

        {

            if ( rArg.Name == "List" )

            {

                Sequence< OUString > aList;

                m_pListBoxControl->clear();

                rArg.Value >>= aList;

                for (OUString const& rName : aList)

                    m_pListBoxControl->append_text(rName);

                m_pListBoxControl->set_active(0);

                // send notification

                uno::Sequence< beans::NamedValue > aInfo { { u"List"_ustr, css::uno::Any(aList) } };

                addNotifyInfo( u"ListChanged"_ustr,

                               getDispatchFromCommand( m_aCommandURL ),

                               aInfo );

                break;

            }

        }

    }

    else if ( rControlCommand.Command == "AddEntry" )

    {

        OUString   aText;

        for ( const NamedValue& rArg : rControlCommand.Arguments )

        {

            if ( rArg.Name == "Text" )

            {

                if ( rArg.Value >>= aText )

                    m_pListBoxControl->append_text(aText);

                break;

            }

        }

    }

    else if ( rControlCommand.Command == "InsertEntry" )

    {

        sal_Int32 nPos(-1);

        OUString   aText;

        for ( const NamedValue& rArg : rControlCommand.Arguments )

        {

            if ( rArg.Name == "Pos" )

            {

                sal_Int32 nTmpPos = 0;

                if ( rArg.Value >>= nTmpPos )

                {

                    if (( nTmpPos >= 0 ) &&

                        ( nTmpPos < m_pListBoxControl->get_count() ))

                        nPos = nTmpPos;

                }

            }

            else if ( rArg.Name == "Text" )

                rArg.Value >>= aText;

        }

        m_pListBoxControl->insert_text(nPos, aText);

    }

    else if ( rControlCommand.Command == "RemoveEntryPos" )

    {

        for ( const NamedValue& rArg : rControlCommand.Arguments )

        {

            if ( rArg.Name == "Pos" )

            {

                sal_Int32 nPos( -1 );

                if ( rArg.Value >>= nPos )

                {

                    if ( 0 <= nPos && nPos < m_pListBoxControl->get_count() )

                        m_pListBoxControl->remove(nPos);

                }

                break;

            }

        }

    }

    else if ( rControlCommand.Command == "RemoveEntryText" )

    {

        for ( const NamedValue& rArg : rControlCommand.Arguments )

        {

            if ( rArg.Name == "Text" )

            {

                OUString aText;

                if ( rArg.Value >>= aText )

                {

                    auto nPos = m_pListBoxControl->find_text(aText);

                    if (nPos != -1)

                        m_pListBoxControl->remove(nPos);

                }

                break;

            }

        }

    }

}

} // namespace

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