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/*
* Copyright (C) 2013, 2014 Apple Inc. All rights reserved.
* Copyright (C) 2014 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Editor.h"
#include "Blob.h"
#include "CachedImage.h"
#include "DOMURL.h"
#include "DocumentFragment.h"
#include "Frame.h"
#include "HTMLEmbedElement.h"
#include "HTMLImageElement.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParserIdioms.h"
#include "Pasteboard.h"
#include "RenderImage.h"
#include "SVGElement.h"
#include "SVGImageElement.h"
#include "SelectionData.h"
#include "XLinkNames.h"
#include "markup.h"
#include <cairo.h>
namespace WebCore {
static RefPtr<DocumentFragment> createFragmentFromPasteboardData(Pasteboard& pasteboard, Frame& frame, Range& range, bool allowPlainText, bool& chosePlainText)
{
chosePlainText = false;
if (!pasteboard.hasData())
return nullptr;
const auto& selection = pasteboard.selectionData();
if (selection.hasImage()) {
Vector<uint8_t> buffer;
auto status = cairo_surface_write_to_png_stream(selection.image()->nativeImage().get(), [](void* output, const unsigned char* data, unsigned size) {
if (!reinterpret_cast<Vector<uint8_t>*>(output)->tryAppend(data, size))
return CAIRO_STATUS_WRITE_ERROR;
return CAIRO_STATUS_SUCCESS;
}, &buffer);
if (status == CAIRO_STATUS_SUCCESS) {
auto blob = Blob::create(WTFMove(buffer), "image/png");
return frame.editor().createFragmentForImageAndURL(DOMURL::createObjectURL(*frame.document(), blob));
}
}
if (selection.hasMarkup() && frame.document())
return createFragmentFromMarkup(*frame.document(), selection.markup(), emptyString(), DisallowScriptingAndPluginContent);
if (!allowPlainText)
return nullptr;
if (selection.hasText()) {
chosePlainText = true;
return createFragmentFromText(range, selection.text());
}
return nullptr;
}
void Editor::pasteWithPasteboard(Pasteboard* pasteboard, bool allowPlainText, MailBlockquoteHandling mailBlockquoteHandling)
{
RefPtr<Range> range = selectedRange();
if (!range)
return;
bool chosePlainText;
RefPtr<DocumentFragment> fragment = createFragmentFromPasteboardData(*pasteboard, m_frame, *range, allowPlainText, chosePlainText);
if (fragment && shouldInsertFragment(*fragment, range.get(), EditorInsertAction::Pasted))
pasteAsFragment(fragment.releaseNonNull(), canSmartReplaceWithPasteboard(*pasteboard), chosePlainText, mailBlockquoteHandling);
}
static const AtomicString& elementURL(Element& element)
{
if (is<HTMLImageElement>(element) || is<HTMLInputElement>(element))
return element.attributeWithoutSynchronization(HTMLNames::srcAttr);
if (is<SVGImageElement>(element))
return element.attributeWithoutSynchronization(XLinkNames::hrefAttr);
if (is<HTMLEmbedElement>(element) || is<HTMLObjectElement>(element))
return element.imageSourceURL();
return nullAtom();
}
static bool getImageForElement(Element& element, RefPtr<Image>& image)
{
auto* renderer = element.renderer();
if (!is<RenderImage>(renderer))
return false;
CachedImage* cachedImage = downcast<RenderImage>(*renderer).cachedImage();
if (!cachedImage || cachedImage->errorOccurred())
return false;
image = cachedImage->imageForRenderer(renderer);
return image;
}
void Editor::writeImageToPasteboard(Pasteboard& pasteboard, Element& imageElement, const URL&, const String& title)
{
PasteboardImage pasteboardImage;
if (!getImageForElement(imageElement, pasteboardImage.image))
return;
ASSERT(pasteboardImage.image);
pasteboardImage.url.url = imageElement.document().completeURL(stripLeadingAndTrailingHTMLSpaces(elementURL(imageElement)));
pasteboardImage.url.title = title;
pasteboardImage.url.markup = createMarkup(imageElement, IncludeNode, nullptr, ResolveAllURLs);
pasteboard.write(pasteboardImage);
}
void Editor::writeSelectionToPasteboard(Pasteboard& pasteboard)
{
PasteboardWebContent pasteboardContent;
pasteboardContent.canSmartCopyOrDelete = canSmartCopyOrDelete();
pasteboardContent.text = selectedTextForDataTransfer();
pasteboardContent.markup = createMarkup(*selectedRange(), nullptr, AnnotateForInterchange, false, ResolveNonLocalURLs);
pasteboard.write(pasteboardContent);
}
RefPtr<DocumentFragment> Editor::webContentFromPasteboard(Pasteboard& pasteboard, Range& context, bool allowPlainText, bool& chosePlainText)
{
return createFragmentFromPasteboardData(pasteboard, m_frame, context, allowPlainText, chosePlainText);
}
} // namespace WebCore
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