зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
2.4 KiB
C++
75 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __nsClipboardX11_h_
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#define __nsClipboardX11_h_
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#include <gtk/gtk.h>
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enum ClipboardDataType { CLIPBOARD_DATA, CLIPBOARD_TEXT, CLIPBOARD_TARGETS };
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class nsRetrievalContextX11 : public nsRetrievalContext {
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public:
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enum State { INITIAL, COMPLETED, TIMED_OUT };
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virtual const char* GetClipboardData(const char* aMimeType,
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int32_t aWhichClipboard,
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uint32_t* aContentLength) override;
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virtual const char* GetClipboardText(int32_t aWhichClipboard) override;
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virtual void ReleaseClipboardData(const char* aClipboardData) override;
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virtual GdkAtom* GetTargets(int32_t aWhichClipboard,
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int* aTargetNums) override;
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virtual bool HasSelectionSupport(void) override;
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// Call this when data or text has been retrieved.
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void Complete(ClipboardDataType aDataType, const void* aData,
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int aDataRequestNumber);
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nsRetrievalContextX11();
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virtual ~nsRetrievalContextX11() override;
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private:
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bool WaitForClipboardData(ClipboardDataType aDataType,
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GtkClipboard* clipboard,
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const char* aMimeType = nullptr);
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/**
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* Spins X event loop until timing out or being completed. Returns
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* null if we time out, otherwise returns the completed data (passing
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* ownership to caller).
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*/
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bool WaitForX11Content();
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State mState;
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int mClipboardRequestNumber;
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void* mClipboardData;
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uint32_t mClipboardDataLength;
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GdkAtom mTargetMIMEType;
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};
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class ClipboardRequestHandler {
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public:
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ClipboardRequestHandler(nsRetrievalContextX11* aContext,
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ClipboardDataType aDataType, int aDataRequestNumber)
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: mContext(aContext),
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mDataRequestNumber(aDataRequestNumber),
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mDataType(aDataType) {}
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void Complete(const void* aData) {
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mContext->Complete(mDataType, aData, mDataRequestNumber);
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}
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private:
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nsRetrievalContextX11* mContext;
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int mDataRequestNumber;
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ClipboardDataType mDataType;
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};
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#endif /* __nsClipboardX11_h_ */
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