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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_SYSTEM_CLIPBOARD_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_SYSTEM_CLIPBOARD_H_
#include "third_party/blink/public/mojom/clipboard/clipboard.mojom-blink.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class DataObject;
class Image;
class KURL;
class LocalFrame;
// SystemClipboard:
// - is a singleton.
// - provides sanitized, platform-neutral read/write access to the clipboard.
// - mediates between core classes and mojom::ClipboardHost.
//
// All calls to write functions must be followed by a call to CommitWrite().
class CORE_EXPORT SystemClipboard final
: public GarbageCollected<SystemClipboard> {
public:
enum SmartReplaceOption { kCanSmartReplace, kCannotSmartReplace };
explicit SystemClipboard(LocalFrame* frame);
uint64_t SequenceNumber();
bool IsSelectionMode() const;
void SetSelectionMode(bool);
bool CanSmartReplace();
bool IsHTMLAvailable();
Vector<String> ReadAvailableTypes();
String ReadPlainText();
String ReadPlainText(mojom::ClipboardBuffer buffer);
void WritePlainText(const String&, SmartReplaceOption = kCannotSmartReplace);
// If no data is read, an empty string will be returned and all out parameters
// will be cleared. If applicable, the page URL will be assigned to the KURL
// parameter. fragmentStart and fragmentEnd are indexes into the returned
// markup that indicate the start and end of the returned markup. If there is
// no additional context, fragmentStart will be zero and fragmentEnd will be
// the same as the length of the markup.
String ReadHTML(KURL&, unsigned& fragment_start, unsigned& fragment_end);
void WriteHTML(const String& markup,
const KURL& document_url,
const String& plain_text,
SmartReplaceOption = kCannotSmartReplace);
String ReadRTF();
SkBitmap ReadImage(mojom::ClipboardBuffer);
String ReadImageAsImageMarkup(mojom::blink::ClipboardBuffer);
// Write the image and its associated tag (bookmark/HTML types).
void WriteImageWithTag(Image*, const KURL&, const String& title);
// Write the image only.
void WriteImage(const SkBitmap&);
String ReadCustomData(const String& type);
void WriteDataObject(DataObject*);
// Clipboard write functions must use CommitWrite for changes to reach
// the OS clipboard.
void CommitWrite();
void Trace(Visitor*) const;
private:
bool IsValidBufferType(mojom::ClipboardBuffer);
HeapMojoRemote<mojom::blink::ClipboardHost,
HeapMojoWrapperMode::kForceWithoutContextObserver>
clipboard_;
// In X11, |buffer_| may equal ClipboardBuffer::kStandard or kSelection.
// Outside X11, |buffer_| always equals ClipboardBuffer::kStandard.
mojom::ClipboardBuffer buffer_ = mojom::ClipboardBuffer::kStandard;
DISALLOW_COPY_AND_ASSIGN(SystemClipboard);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_SYSTEM_CLIPBOARD_H_
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