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93 lines
3 KiB
C++
93 lines
3 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-11 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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class ActionMessage : public Message
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{
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public:
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ActionMessage (const String& messageText, ActionListener* const listener_) noexcept
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: message (messageText),
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listener (listener_)
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{
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}
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const String message;
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ActionListener* const listener;
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private:
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JUCE_DECLARE_NON_COPYABLE (ActionMessage);
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};
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ActionBroadcaster::CallbackReceiver::CallbackReceiver() {}
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void ActionBroadcaster::CallbackReceiver::handleMessage (const Message& message)
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{
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const ActionMessage& am = static_cast <const ActionMessage&> (message);
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if (owner->actionListeners.contains (am.listener))
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am.listener->actionListenerCallback (am.message);
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}
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//==============================================================================
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ActionBroadcaster::ActionBroadcaster()
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{
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// are you trying to create this object before or after juce has been intialised??
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jassert (MessageManager::instance != nullptr);
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callback.owner = this;
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}
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ActionBroadcaster::~ActionBroadcaster()
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{
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// all event-based objects must be deleted BEFORE juce is shut down!
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jassert (MessageManager::instance != nullptr);
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}
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void ActionBroadcaster::addActionListener (ActionListener* const listener)
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{
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const ScopedLock sl (actionListenerLock);
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if (listener != nullptr)
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actionListeners.add (listener);
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}
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void ActionBroadcaster::removeActionListener (ActionListener* const listener)
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{
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const ScopedLock sl (actionListenerLock);
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actionListeners.removeValue (listener);
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}
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void ActionBroadcaster::removeAllActionListeners()
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{
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const ScopedLock sl (actionListenerLock);
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actionListeners.clear();
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}
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void ActionBroadcaster::sendActionMessage (const String& message) const
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{
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const ScopedLock sl (actionListenerLock);
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for (int i = actionListeners.size(); --i >= 0;)
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callback.postMessage (new ActionMessage (message, actionListeners.getUnchecked(i)));
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}
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