gecko-dev/widget/gtk/nsClipboardX11.h

86 строки
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 __nsClipboardX11_h_
#define __nsClipboardX11_h_
#include "nsIClipboard.h"
#include <gtk/gtk.h>
enum ClipboardDataType {
CLIPBOARD_DATA,
CLIPBOARD_TEXT,
CLIPBOARD_TARGETS
};
class nsRetrievalContextX11 : public nsRetrievalContext
{
public:
enum State { INITIAL, COMPLETED, TIMED_OUT };
virtual const char* GetClipboardData(const char* aMimeType,
int32_t aWhichClipboard,
uint32_t* aContentLength) override;
virtual const char* GetClipboardText(int32_t aWhichClipboard) override;
virtual void ReleaseClipboardData(const char* aClipboardData) override;
virtual GdkAtom* GetTargets(int32_t aWhichClipboard,
int* aTargetNums) override;
virtual bool HasSelectionSupport(void) override;
// Call this when data or text has been retrieved.
void Complete(ClipboardDataType aDataType,
const void* aData,
int aDataRequestNumber);
nsRetrievalContextX11();
virtual ~nsRetrievalContextX11() override;
private:
bool WaitForClipboardData(ClipboardDataType aDataType,
GtkClipboard *clipboard,
const char *aMimeType = nullptr);
/**
* Spins X event loop until timing out or being completed. Returns
* null if we time out, otherwise returns the completed data (passing
* ownership to caller).
*/
bool WaitForX11Content();
State mState;
int mClipboardRequestNumber;
void* mClipboardData;
uint32_t mClipboardDataLength;
GdkAtom mTargetMIMEType;
};
class ClipboardRequestHandler
{
public:
ClipboardRequestHandler(nsRetrievalContextX11 *aContext,
ClipboardDataType aDataType,
int aDataRequestNumber)
: mContext(aContext)
, mDataRequestNumber(aDataRequestNumber)
, mDataType(aDataType)
{}
void Complete(const void *aData)
{
mContext->Complete(mDataType, aData, mDataRequestNumber);
}
private:
nsRetrievalContextX11 *mContext;
int mDataRequestNumber;
ClipboardDataType mDataType;
};
#endif /* __nsClipboardX11_h_ */