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 * modification, are permitted provided that the following conditions are

 * met:

 * 

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * Redistributions in binary form must reproduce the above

 * copyright notice, this list of conditions and the following disclaimer

 * in the documentation and/or other materials provided with the

 * distribution.

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 * contributors may be used to endorse or promote products derived from

 * this software without specific prior written permission.

 * 

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 */

#include "config.h"

#include "Pasteboard.h"

#include "ChromiumBridge.h"

#include "ClipboardUtilitiesChromium.h"

#include "DocumentFragment.h"

#include "Document.h"

#include "Element.h"

#include "Frame.h"

#include "HTMLNames.h"

#include "Image.h"

#include "KURL.h"

#include "markup.h"

#include "NativeImageSkia.h"

#include "Range.h"

#include "RenderImage.h"

#if ENABLE(SVG)

#include "SVGNames.h"

#include "XLinkNames.h"

#endif

namespace WebCore {

Pasteboard* Pasteboard::generalPasteboard()

{

    static Pasteboard* pasteboard = new Pasteboard;

    return pasteboard;

}

Pasteboard::Pasteboard()

    : m_selectionMode(false)

{

}

void Pasteboard::clear()

{

    // The ScopedClipboardWriter class takes care of clearing the clipboard's

    // previous contents.

}

bool Pasteboard::isSelectionMode() const

{

    return m_selectionMode;

}

void Pasteboard::setSelectionMode(bool selectionMode)

{

    m_selectionMode = selectionMode;

}

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

{

    String html = createMarkup(selectedRange, 0, AnnotateForInterchange, false, AbsoluteURLs);

    ExceptionCode ec = 0;

    KURL url = selectedRange->startContainer(ec)->document()->url();

    String plainText = frame->selectedText();

#if OS(WINDOWS)

    replaceNewlinesWithWindowsStyleNewlines(plainText);

#endif

    replaceNBSPWithSpace(plainText);

    ChromiumBridge::clipboardWriteSelection(html, url, plainText, canSmartCopyOrDelete);

}

void Pasteboard::writePlainText(const String& text)

{

#if OS(WINDOWS)

    String plainText(text);

    replaceNewlinesWithWindowsStyleNewlines(plainText);

    ChromiumBridge::clipboardWritePlainText(plainText);

#else

    ChromiumBridge::clipboardWritePlainText(text);

#endif

}

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

{

    ASSERT(!url.isEmpty());

    String title(titleStr);

    if (title.isEmpty()) {

        title = url.lastPathComponent();

        if (title.isEmpty())

            title = url.host();

    }

    ChromiumBridge::clipboardWriteURL(url, title);

}

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

{

    ASSERT(node);

    ASSERT(node->renderer());

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

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

    CachedImage* cachedImage = renderer->cachedImage();

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

        return;

    Image* image = cachedImage->image();

    ASSERT(image);

    NativeImagePtr bitmap = image->nativeImageForCurrentFrame();

    if (!bitmap)

        return;

    // If the image is wrapped in a link, |url| points to the target of the

    // link.  This isn't useful to us, so get the actual image URL.

    AtomicString urlString;

    if (node->hasTagName(HTMLNames::imgTag) || node->hasTagName(HTMLNames::inputTag))

        urlString = static_cast<Element*>(node)->getAttribute(HTMLNames::srcAttr);

#if ENABLE(SVG)

    else if (node->hasTagName(SVGNames::imageTag))

        urlString = static_cast<Element*>(node)->getAttribute(XLinkNames::hrefAttr);

#endif

    else if (node->hasTagName(HTMLNames::embedTag) || node->hasTagName(HTMLNames::objectTag)) {

        Element* element = static_cast<Element*>(node);

        urlString = element->getAttribute(element->imageSourceAttributeName());

    }

    KURL url = urlString.isEmpty() ? KURL() : node->document()->completeURL(deprecatedParseURL(urlString));

    ChromiumBridge::clipboardWriteImage(bitmap, url, title);

}

bool Pasteboard::canSmartReplace()

{

    return ChromiumBridge::clipboardIsFormatAvailable(PasteboardPrivate::WebSmartPasteFormat, m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer);

}

String Pasteboard::plainText(Frame* frame)

{

    return ChromiumBridge::clipboardReadPlainText(m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer);

}

PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context, bool allowPlainText, bool& chosePlainText)

{

    chosePlainText = false;

    PasteboardPrivate::ClipboardBuffer buffer = m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer;

    if (ChromiumBridge::clipboardIsFormatAvailable(PasteboardPrivate::HTMLFormat, buffer)) {

        String markup;

        KURL srcURL;

        ChromiumBridge::clipboardReadHTML(buffer, &markup, &srcURL);

        RefPtr<DocumentFragment> fragment =

            createFragmentFromMarkup(frame->document(), markup, srcURL, FragmentScriptingNotAllowed);

        if (fragment)

            return fragment.release();

    }

    if (allowPlainText) {

        String markup = ChromiumBridge::clipboardReadPlainText(buffer);

        if (!markup.isEmpty()) {

            chosePlainText = true;

            RefPtr<DocumentFragment> fragment =

                createFragmentFromText(context.get(), markup);

            if (fragment)

                return fragment.release();

        }

    }

    return 0;

}

} // namespace WebCore