/***************************************************************************
 *   Copyright 2006-2007 Alexander Dymo <adymo@kdevelop.org>               *
 *   Copyright 2006 Andreas Pakulat <apaku@gmx.de>                         *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this program; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/
#include "filemanager.h"

#include <QDir>
#include <QMenu>
#include <QLayout>
#include <QAbstractItemView>

#include <kurl.h>
#include <kurlnavigator.h>
#include <kfileplacesmodel.h>
#include <klocale.h>
#include <kaction.h>
#include <kactioncollection.h>
#include <kdiroperator.h>
#include <kfileitem.h>
#include <klineedit.h>
#include <kinputdialog.h>
#include <ktemporaryfile.h>
#include <kio/netaccess.h>
#include <kparts/mainwindow.h>
#include <kmessagebox.h>

#include <interfaces/icore.h>
#include <interfaces/iuicontroller.h>
#include <interfaces/iplugincontroller.h>
#include <interfaces/idocumentcontroller.h>
#include <interfaces/context.h>
#include <interfaces/contextmenuextension.h>

#include "../openwith/iopenwith.h"

#include "kdevfilemanagerplugin.h"

FileManager::FileManager(KDevFileManagerPlugin *plugin, QWidget* parent)
    :QWidget(parent)
{
    Q_UNUSED( plugin );
    setObjectName("FileManager");
    setWindowIcon(SmallIcon("system-file-manager"));
    setWindowTitle(i18n("Filesystem"));
    setWhatsThis(i18n("Filesystem Browser"));

    QVBoxLayout *l = new QVBoxLayout(this);
    l->setMargin(0);
    l->setSpacing(0);
    KFilePlacesModel* model = new KFilePlacesModel( this );
    urlnav = new KUrlNavigator(model, KUrl( QDir::homePath() ), this );
    connect(urlnav, SIGNAL(urlChanged(KUrl)), SLOT(gotoUrl(KUrl)));
    l->addWidget(urlnav);
    dirop = new KDirOperator(QDir::homePath(), this);
    dirop->setView( KFile::Tree );
    dirop->setupMenu( KDirOperator::SortActions | KDirOperator::FileActions | KDirOperator::NavActions | KDirOperator::ViewActions );
    connect(dirop, SIGNAL(urlEntered(KUrl)), SLOT(updateNav(KUrl)));
    connect(dirop, SIGNAL(contextMenuAboutToShow(KFileItem,QMenu*)), SLOT(fillContextMenu(KFileItem,QMenu*)));
    l->addWidget(dirop);

    connect( dirop, SIGNAL(fileSelected(KFileItem)), this, SLOT(openFile(KFileItem)) );

    setupActions();
}

void FileManager::fillContextMenu(KFileItem item, QMenu* menu)
{
    foreach(QAction* a, contextActions){
        if(menu->actions().contains(a)){
            menu->removeAction(a);
        }
    }
    contextActions.clear();
    contextActions.append(menu->addSeparator());
    menu->addAction(newFileAction);
    contextActions.append(newFileAction);
    KDevelop::FileContext context(item.url());
    QList<KDevelop::ContextMenuExtension> extensions = KDevelop::ICore::self()->pluginController()->queryPluginsForContextMenuExtensions( &context );
    KDevelop::ContextMenuExtension::populateMenu(menu, extensions);
    QMenu* tmpMenu = new QMenu();
    KDevelop::ContextMenuExtension::populateMenu(tmpMenu, extensions);
    contextActions.append(tmpMenu->actions());
    delete tmpMenu;
}

void FileManager::openFile(const KFileItem& file)
{
    KDevelop::IOpenWith::openFiles(KUrl::List() << file.url());
}


void FileManager::gotoUrl( const KUrl& url )
{
     dirop->setUrl( url, true );
}

void FileManager::updateNav( const KUrl& url )
{
    urlnav->setLocationUrl( url );
}

void FileManager::setupActions()
{
    KAction* action = new KAction(this);
    action->setShortcutContext(Qt::WidgetWithChildrenShortcut);
    action->setText(i18n("Current Document Directory"));
    action->setIcon(KIcon("dirsync"));
    connect(action, SIGNAL(triggered(bool)), this, SLOT(syncCurrentDocumentDirectory()));
    tbActions << (dirop->actionCollection()->action("back"));
    tbActions << (dirop->actionCollection()->action("up"));
    tbActions << (dirop->actionCollection()->action("home"));
    tbActions << (dirop->actionCollection()->action("forward"));
    tbActions << (dirop->actionCollection()->action("reload"));
    tbActions << action;
    tbActions << (dirop->actionCollection()->action("sorting menu"));
    tbActions << (dirop->actionCollection()->action("show hidden"));

    newFileAction = new KAction(this);
    newFileAction->setText(i18n("New File..."));
    newFileAction->setIcon(KIcon("document-new"));
    connect(newFileAction, SIGNAL(triggered()), this, SLOT(createNewFile()));
}

void FileManager::createNewFile()
{
    KParts::MainWindow *activeMainWindow = KDevelop::ICore::self()->uiController()->activeMainWindow();

    //TODO: adymo: use KNameAndUrlInputDialog here once we depend on KDE 4.5
    bool ok = false;
    QString fileName = KInputDialog::getText(i18n("Create New File"),
        i18n("Filename:"), "", &ok, activeMainWindow);
    if (!ok) return;

    KTemporaryFile tmpFile;
    if (!tmpFile.open()) {
        kError() << "Couldn't create temp file!";
        return;
    }

    KUrl destUrl = dirop->url();
    destUrl.addPath(fileName);

    if (KIO::NetAccess::file_copy(KUrl(tmpFile.fileName()), destUrl))
        KDevelop::ICore::self()->documentController()->openDocument( destUrl );
    else
        KMessageBox::error(activeMainWindow, i18n("Unable to create file '%1'").arg(fileName));
}

void FileManager::syncCurrentDocumentDirectory()
{
    if( KDevelop::IDocument* activeDoc =
                    KDevelop::ICore::self()->documentController()->activeDocument() )
        updateNav( activeDoc->url().upUrl() );
}

QList<QAction*> FileManager::toolBarActions() const
{
    return tbActions;
}

#include "filemanager.moc"
