1 files changed, 97 insertions, 0 deletions
diff --git a/vcl/inc/qt5/QtClipboard.hxx b/vcl/inc/qt5/QtClipboard.hxx
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+++ b/vcl/inc/qt5/QtClipboard.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ *
+ */
+
+#pragma once
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/datatransfer/XTransferable.hpp>
+#include <com/sun/star/datatransfer/clipboard/XSystemClipboard.hpp>
+#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboardListener.hpp>
+#include <cppuhelper/compbase.hxx>
+
+#include <QtGui/QClipboard>
+
+/**
+ * This implementation has two main functions, which handle the clipboard content:
+ * the XClipboard::setContent function and the QClipboard::change signal handler.
+ *
+ * The first just sets the respective clipboard to the expected content from LO,
+ * the latter will handle any reported changes.
+ **/
+class QtClipboard final
+    : public QObject,
+      public cppu::WeakComponentImplHelper<css::datatransfer::clipboard::XSystemClipboard,
+                                           css::datatransfer::clipboard::XFlushableClipboard,
+                                           css::lang::XServiceInfo>
+{
+    Q_OBJECT
+
+    osl::Mutex m_aMutex;
+    const OUString m_aClipboardName;
+    const QClipboard::Mode m_aClipboardMode;
+    // has to be set, if LO changes the QClipboard itself, so it won't instantly lose
+    // ownership by it's self-triggered QClipboard::changed handler
+    bool m_bOwnClipboardChange;
+    // true, if LO really wants to give up clipboard ownership
+    bool m_bDoClear;
+
+    // if not empty, this holds the setContents provided XTransferable or a QtClipboardTransferable
+    css::uno::Reference<css::datatransfer::XTransferable> m_aContents;
+    // the owner of the current contents, which must be informed on content change
+    css::uno::Reference<css::datatransfer::clipboard::XClipboardOwner> m_aOwner;
+    std::vector<css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>> m_aListeners;
+
+    static bool isOwner(const QClipboard::Mode aMode);
+    static bool isSupported(const QClipboard::Mode aMode);
+
+    explicit QtClipboard(OUString aModeString, const QClipboard::Mode aMode);
+
+private Q_SLOTS:
+    void handleChanged(QClipboard::Mode mode);
+    void handleClearClipboard();
+
+signals:
+    void clearClipboard();
+
+public:
+    // factory function to construct only valid QtClipboard objects by name
+    static css::uno::Reference<css::uno::XInterface> create(const OUString& aModeString);
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+
+    // XClipboard
+    virtual css::uno::Reference<css::datatransfer::XTransferable> SAL_CALL getContents() override;
+    virtual void SAL_CALL setContents(
+        const css::uno::Reference<css::datatransfer::XTransferable>& xTrans,
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardOwner>& xClipboardOwner)
+        override;
+    virtual OUString SAL_CALL getName() override;
+
+    // XClipboardEx
+    virtual sal_Int8 SAL_CALL getRenderingCapabilities() override;
+
+    // XFlushableClipboard
+    virtual void SAL_CALL flushClipboard() override;
+
+    // XClipboardNotifier
+    virtual void SAL_CALL addClipboardListener(
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>& listener)
+        override;
+    virtual void SAL_CALL removeClipboardListener(
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboardListener>& listener)
+        override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */