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Diffstat (limited to 'framework/source/inc/dispatch/windowcommanddispatch.hxx')
-rw-r--r-- | framework/source/inc/dispatch/windowcommanddispatch.hxx | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/framework/source/inc/dispatch/windowcommanddispatch.hxx b/framework/source/inc/dispatch/windowcommanddispatch.hxx new file mode 100644 index 000000000..4a8a22d81 --- /dev/null +++ b/framework/source/inc/dispatch/windowcommanddispatch.hxx @@ -0,0 +1,109 @@ +/* -*- 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <com/sun/star/awt/XWindow.hpp> +#include <com/sun/star/frame/XFrame.hpp> + +#include <cppuhelper/weakref.hxx> +#include <tools/link.hxx> +#include <mutex> + +namespace com::sun::star::uno { + class XComponentContext; +} +class VclWindowEvent; + +namespace framework{ + +/** @short internal helper to bind e.g. MAC-Menu events to our internal dispatch API. + + @descr On e.g. MAC platform system menus are merged together with some fix entries as + e.g. "Pereferences" or "About". These menu entries trigger hard coded commands. + Here we map these commands to the right URLs and dispatch them. + + This helper knows a frame and its container window (where VCL provide the hard coded + commands). We hold those objects weak so there is no need to react for complex UNO dispose/ing() + scenarios. On the other side VCL does not hold us alive (because it doesn't know our UNO reference). + So we register at the VCL level as an event listener and + */ +class WindowCommandDispatch final +{ + private: + std::mutex m_mutex; + + /// can be used to create own needed services on demand. + css::uno::Reference< css::uno::XComponentContext > m_xContext; + + /// knows the frame, where we dispatch our commands as weak reference + css::uno::WeakReference< css::frame::XFrame > m_xFrame; + + /// knows the VCL window (where the hard coded commands occurred) as weak XWindow reference + css::uno::WeakReference< css::awt::XWindow > m_xWindow; + + // native interface + + public: + + /** @short creates a new instance and initialize it with all necessary parameters. + + @descr Every instance of such MACDispatch can be used for the specified context only. + Means: 1 MACDispatch object is bound to 1 Frame/Window pair in which context + the detected commands will be executed. + + @param xContext + will be used to create own needed services on demand. + + @param xFrame + used as for new detected commands. + */ + WindowCommandDispatch(css::uno::Reference< css::uno::XComponentContext > xContext , + const css::uno::Reference< css::frame::XFrame >& xFrame); + + /** @short used to free internal resources. + */ + ~WindowCommandDispatch(); + + // implementation + + private: + + /** @short establish all listener connections we need. + + @descr Those listener connections will be created one times only (see ctor). + Afterwards we listen for incoming events till our referred frame/window pair + will be closed. + */ + void impl_startListening(); + + /** @short drop all listener connections we need. + + */ + void impl_stopListening(); + + /** @short callback from VCL to notify new commands + */ + DECL_LINK( impl_notifyCommand, VclWindowEvent&, void ); + +}; // class WindowCommandDispatch + +} // namespace framework + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |