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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/


#include <QDebug>
#include <QStandardPaths>
#include <QListView>
#include <QPushButton>
#include <QStringList>
#include <QUrl>

#include "filedialogeventcatcher.h"
#include "scfilewidget.h"


ScFileWidget::ScFileWidget(QWidget * parent) : QFileDialog(parent, Qt::Widget)
{
        setOption(QFileDialog::DontUseNativeDialog);
        setSizeGripEnabled(false);
        setModal(false);
        setViewMode(QFileDialog::List);
        setWindowFlags(Qt::Widget);

#ifdef Q_OS_MAC
        QList<QUrl> urls;
        QUrl computer(QUrl::fromLocalFile(QLatin1String("")));
        if (!urls.contains(computer))
                urls << computer;
        QUrl volumes(QUrl::fromLocalFile("/Volumes"));
        if (!urls.contains(volumes))
                urls << volumes;
        QUrl dt(QUrl::fromLocalFile(QStandardPaths::writableLocation(QStandardPaths::DesktopLocation)));
        if (!urls.contains(dt))
                urls << dt;
        setSidebarUrls(urls);
#endif

        FileDialogEventCatcher* keyCatcher = new FileDialogEventCatcher(this);
        QList<QListView *> lv = findChildren<QListView *>();
        QListIterator<QListView *> lvi(lv);
        while (lvi.hasNext())
                lvi.next()->installEventFilter(keyCatcher);
        connect(keyCatcher, SIGNAL(escapePressed()), this, SLOT(reject()));
        connect(keyCatcher, SIGNAL(dropLocation(QString)), this, SLOT(locationDropped(QString)));
        connect(keyCatcher, SIGNAL(desktopPressed()), this, SLOT(gotoDesktopDirectory()));
        connect(keyCatcher, SIGNAL(homePressed()), this, SLOT(gotoHomeDirectory()));
        connect(keyCatcher, SIGNAL(parentPressed()), this, SLOT(gotoParentDirectory()));
        connect(keyCatcher, SIGNAL(enterSelectedPressed()), this, SLOT(gotoSelectedDirectory()));

        QList<QPushButton *> b = findChildren<QPushButton *>();
        QListIterator<QPushButton *> i(b);
        while (i.hasNext())
                i.next()->setVisible(false);
        setMinimumSize(QSize(480, 310));
        setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
}

QString ScFileWidget::selectedFile()
{
        QStringList l(selectedFiles());
        if (l.count() == 0)
                return QString();
        return l.at(0);
}

/* Hack to make the previews in our file dialogs useable again
   needed e.g on OpenSuse patched Qt versions */

void ScFileWidget::accept()
{
#ifndef Q_OS_LINUX
        QFileDialog::accept();
#endif
}

void ScFileWidget::locationDropped(QString fileUrl)
{
        QFileInfo fi(fileUrl);
        if (fi.isDir())
                setDirectory(fi.absoluteFilePath());
        else
        {
                setDirectory(fi.absolutePath());
                selectFile(fi.fileName());
        }
}

void ScFileWidget::gotoParentDirectory()
{
        QDir d(directory());
        d.cdUp();
        setDirectory(d);
}

void ScFileWidget::gotoSelectedDirectory()
{
        QStringList s(selectedFiles());
        if (s.count()>0)
        {
                QFileInfo fi(s.first());
                qDebug()<<s.first()<<fi.absoluteFilePath();
                if (fi.isDir())
                        setDirectory(fi.absoluteFilePath());
        }
}

void ScFileWidget::gotoDesktopDirectory()
{
        QString dp=QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
        QFileInfo fi(dp);
        if (fi.exists())
                setDirectory(dp);
}

void ScFileWidget::gotoHomeDirectory()
{
        QString dp=QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
        QFileInfo fi(dp);
        if (fi.exists())
                setDirectory(dp);
}