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104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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class ActionBroadcaster::ActionMessage final : public MessageManager::MessageBase
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{
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public:
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ActionMessage (const ActionBroadcaster* ab,
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const String& messageText, ActionListener* l) noexcept
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: broadcaster (const_cast<ActionBroadcaster*> (ab)),
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message (messageText),
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listener (l)
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{}
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void messageCallback() override
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{
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if (auto b = broadcaster.get())
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if (b->actionListeners.contains (listener))
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listener->actionListenerCallback (message);
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}
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private:
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WeakReference<ActionBroadcaster> broadcaster;
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const String message;
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ActionListener* const listener;
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JUCE_DECLARE_NON_COPYABLE (ActionMessage)
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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 initialised??
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JUCE_ASSERT_MESSAGE_MANAGER_EXISTS
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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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JUCE_ASSERT_MESSAGE_MANAGER_EXISTS
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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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(new ActionMessage (this, message, actionListeners.getUnchecked (i)))->post();
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}
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} // namespace juce
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