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117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
//
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// JavaScriptEvent.h
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//
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// $Id: //poco/Main/WebWidgets/include/Poco/WebWidgets/JavaScriptEvent.h#5 $
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//
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// Library: WebWidgets
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// Package: WebEvents
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// Module: JavaScriptEvent
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//
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// Definition of the JavaScriptEvent class.
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef WebWidgets_JavaScriptEvent_INCLUDED
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#define WebWidgets_JavaScriptEvent_INCLUDED
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#include "Poco/WebWidgets/WebWidgets.h"
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#include "Poco/WebWidgets/JSDelegate.h"
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#include "Poco/AbstractEvent.h"
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#include "Poco/DefaultStrategy.h"
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#include "Poco/AbstractDelegate.h"
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#include "Poco/CompareFunctions.h"
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namespace Poco {
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namespace WebWidgets {
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template <class TArgs>
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class WebWidgets_API JavaScriptEvent: public Poco::AbstractEvent <
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TArgs, Poco::DefaultStrategy<TArgs, Poco::AbstractDelegate<TArgs>, Poco::p_less<Poco::AbstractDelegate<TArgs> > >,
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Poco::AbstractDelegate<TArgs>
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>
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/// Event class used to handle JavaScriptEvents. Allows to register two different types
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/// of delegates. The standard delegates, as known from Poco::BasicEvent and JSDelegates
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/// which will be embedded into the WebPage when the Parser generates the site.
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{
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public:
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JavaScriptEvent()
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/// Creates the JavaScriptEvent.
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{
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}
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~JavaScriptEvent()
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/// Destroys the JavaScriptEvent.
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{
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}
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bool hasLocalHandlers () const
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{
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FastMutex::ScopedLock lock(this->_mutex);
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return !this->_strategy.empty();
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}
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bool hasJavaScriptHandlers() const
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{
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FastMutex::ScopedLock lock(this->_mutex);
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return !_jsHandlers.empty();
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}
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void add (const JSDelegate& aDelegate)
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/// Adds a javascript delegate to the event.
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{
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FastMutex::ScopedLock lock(this->_mutex);
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_jsHandlers.insert(aDelegate);
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}
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void remove (const JSDelegate& aDelegate)
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/// Removes a javascript delegate from the event. If the delegate is equal to an
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/// already existing one is determined by the < operator.
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/// If the observer is not found, the unregister will be ignored
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{
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FastMutex::ScopedLock lock(this->_mutex);
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_jsHandlers.erase(aDelegate);
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}
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const std::set<JSDelegate>& jsDelegates() const
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/// Returns all delegates currently registered
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{
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return _jsHandlers;
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}
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private:
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std::set<JSDelegate> _jsHandlers;
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};
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} } // namespace Poco::WebWidgets
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#endif // WebWidgets_JavaScriptEvent_INCLUDED
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