/*

 *  Copyright (C) 2007 Holger Hans Peter Freyther

 *  Copyright (C) 2007 Alp Toker <alp@atoker.com>

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Lesser General Public

 *  License as published by the Free Software Foundation; either

 *  version 2 of the License, or (at your option) any later version.

 *

 *  This library 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

 *  Lesser General Public License for more details.

 *

 *  You should have received a copy of the GNU Lesser General Public

 *  License along with this library; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include "config.h"

#include "Pasteboard.h"

#include "DataObjectGtk.h"

#include "DocumentFragment.h"

#include "Frame.h"

#include "NotImplemented.h"

#include "PlatformString.h"

#include "TextResourceDecoder.h"

#include "Image.h"

#include "RenderImage.h"

#include "KURL.h"

#include "markup.h"

#include <wtf/gobject/GRefPtr.h>

#include <wtf/text/CString.h>

#include <gtk/gtk.h>

namespace WebCore {

Pasteboard* Pasteboard::generalPasteboard()

{

    static Pasteboard* pasteboard = new Pasteboard();

    return pasteboard;

}

Pasteboard::Pasteboard()

{

    notImplemented();

}

Pasteboard::~Pasteboard()

{

    delete m_helper;

}

PasteboardHelper* Pasteboard::helper()

{

    return m_helper;

}

void Pasteboard::setHelper(PasteboardHelper* helper)

{

    m_helper = helper;

}

void Pasteboard::writeSelection(Range* selectedRange, bool canSmartCopyOrDelete, Frame* frame)

{

    GtkClipboard* clipboard = m_helper->getClipboard(frame);

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    dataObject->setText(frame->selectedText());

    dataObject->setMarkup(createMarkup(selectedRange, 0, AnnotateForInterchange, false, AbsoluteURLs));

    m_helper->writeClipboardContents(clipboard);

}

void Pasteboard::writePlainText(const String& text)

{

    GtkClipboard* clipboard = gtk_clipboard_get_for_display(gdk_display_get_default(), GDK_SELECTION_CLIPBOARD);

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    dataObject->setText(text);

    m_helper->writeClipboardContents(clipboard);

}

void Pasteboard::writeURL(const KURL& url, const String& label, Frame* frame)

{

    if (url.isEmpty())

        return;

    GtkClipboard* clipboard = m_helper->getClipboard(frame);

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    dataObject->setURL(url, label);

    m_helper->writeClipboardContents(clipboard);

}

void Pasteboard::writeImage(Node* node, const KURL&, const String&)

{

    GtkClipboard* clipboard = gtk_clipboard_get_for_display(gdk_display_get_default(), GDK_SELECTION_CLIPBOARD);

    ASSERT(node && node->renderer() && node->renderer()->isImage());

    RenderImage* renderer = toRenderImage(node->renderer());

    CachedImage* cachedImage = renderer->cachedImage();

    if (!cachedImage || cachedImage->errorOccurred())

        return;

    Image* image = cachedImage->image();

    ASSERT(image);

    GRefPtr<GdkPixbuf> pixbuf = adoptGRef(image->getGdkPixbuf());

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    dataObject->setImage(pixbuf.get());

    m_helper->writeClipboardContents(clipboard);

}

void Pasteboard::clear()

{

    gtk_clipboard_clear(gtk_clipboard_get_for_display(gdk_display_get_default(), GDK_SELECTION_CLIPBOARD));

}

bool Pasteboard::canSmartReplace()

{

    notImplemented();

    return false;

}

PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context,

                                                          bool allowPlainText, bool& chosePlainText)

{

    GtkClipboard* clipboard = m_helper->getCurrentClipboard(frame);

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    m_helper->getClipboardContents(clipboard);

    chosePlainText = false;

    if (dataObject->hasMarkup()) {

        RefPtr<DocumentFragment> fragment = createFragmentFromMarkup(frame->document(), dataObject->markup(), "", FragmentScriptingNotAllowed);

        if (fragment)

            return fragment.release();

    }

    if (!allowPlainText)

        return 0;

    if (dataObject->hasText()) {

        chosePlainText = true;

        RefPtr<DocumentFragment> fragment = createFragmentFromText(context.get(), dataObject->text());

        if (fragment)

            return fragment.release();

    }

    return 0;

}

String Pasteboard::plainText(Frame* frame)

{

    GtkClipboard* clipboard = m_helper->getCurrentClipboard(frame);

    DataObjectGtk* dataObject = DataObjectGtk::forClipboard(clipboard);

    m_helper->getClipboardContents(clipboard);

    return dataObject->text();

}

}