Source code

Revision control

Other Tools

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef __nsClipboard_h_
#define __nsClipboard_h_
#include "mozilla/UniquePtr.h"
#include "nsIClipboard.h"
#include "nsIObserver.h"
#include <gtk/gtk.h>
#ifdef MOZ_LOGGING
# include "mozilla/Logging.h"
# include "nsTArray.h"
# include "Units.h"
extern mozilla::LazyLogModule gClipboardLog;
# define LOGCLIP(...) \
MOZ_LOG(gClipboardLog, mozilla::LogLevel::Debug, (__VA_ARGS__))
#else
# define LOGCLIP(...)
#endif /* MOZ_LOGGING */
enum ClipboardDataType { CLIPBOARD_DATA, CLIPBOARD_TEXT, CLIPBOARD_TARGETS };
class nsRetrievalContext {
public:
// We intentionally use unsafe thread refcount as clipboard is used in
// main thread only.
NS_INLINE_DECL_REFCOUNTING(nsRetrievalContext)
// Get actual clipboard content (GetClipboardData/GetClipboardText)
// which has to be released by ReleaseClipboardData().
virtual const char* GetClipboardData(const char* aMimeType,
int32_t aWhichClipboard,
uint32_t* aContentLength) = 0;
virtual const char* GetClipboardText(int32_t aWhichClipboard) = 0;
virtual void ReleaseClipboardData(const char* aClipboardData) = 0;
// Get data mime types which can be obtained from clipboard.
// The returned array has to be released by g_free().
virtual GdkAtom* GetTargets(int32_t aWhichClipboard, int* aTargetNum) = 0;
virtual bool HasSelectionSupport(void) = 0;
protected:
virtual ~nsRetrievalContext() = default;
};
class nsClipboard : public nsIClipboard, public nsIObserver {
public:
nsClipboard();
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSICLIPBOARD
// Make sure we are initialized, called from the factory
// constructor
nsresult Init(void);
// Someone requested the selection
void SelectionGetEvent(GtkClipboard* aGtkClipboard,
GtkSelectionData* aSelectionData);
void SelectionClearEvent(GtkClipboard* aGtkClipboard);
private:
virtual ~nsClipboard();
// Get our hands on the correct transferable, given a specific
// clipboard
nsITransferable* GetTransferable(int32_t aWhichClipboard);
// Send clipboard data by nsITransferable
void SetTransferableData(nsITransferable* aTransferable, nsCString& aFlavor,
const char* aClipboardData,
uint32_t aClipboardDataLength);
void ClearTransferable(int32_t aWhichClipboard);
bool FilterImportedFlavors(int32_t aWhichClipboard,
nsTArray<nsCString>& aFlavors);
// Hang on to our owners and transferables so we can transfer data
// when asked.
nsCOMPtr<nsIClipboardOwner> mSelectionOwner;
nsCOMPtr<nsIClipboardOwner> mGlobalOwner;
nsCOMPtr<nsITransferable> mSelectionTransferable;
nsCOMPtr<nsITransferable> mGlobalTransferable;
RefPtr<nsRetrievalContext> mContext;
};
extern const int kClipboardTimeout;
extern const int kClipboardFastIterationNum;
GdkAtom GetSelectionAtom(int32_t aWhichClipboard);
int GetGeckoClipboardType(GtkClipboard* aGtkClipboard);
#endif /* __nsClipboard_h_ */