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https://github.com/juce-framework/JUCE.git
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107 lines
4.8 KiB
C++
107 lines
4.8 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::detail
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{
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class ConcreteScopedContentSharerImpl : public ScopedMessageBoxImpl,
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public AsyncUpdater
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{
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public:
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static ScopedMessageBox show (std::unique_ptr<ScopedContentSharerInterface>&& native,
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ContentSharer::Callback callback)
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{
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return ScopedMessageBox (runAsync (std::move (native), std::move (callback)));
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}
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~ConcreteScopedContentSharerImpl() override
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{
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cancelPendingUpdate();
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}
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void close() override
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{
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cancelPendingUpdate();
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nativeImplementation->close();
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self.reset();
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}
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private:
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static std::shared_ptr<ConcreteScopedContentSharerImpl> runAsync (std::unique_ptr<ScopedContentSharerInterface>&& p,
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ContentSharer::Callback&& c)
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{
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std::shared_ptr<ConcreteScopedContentSharerImpl> result (new ConcreteScopedContentSharerImpl (std::move (p), std::move (c)));
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result->self = result;
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result->triggerAsyncUpdate();
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return result;
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}
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ConcreteScopedContentSharerImpl (std::unique_ptr<ScopedContentSharerInterface>&& p,
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ContentSharer::Callback&& c)
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: callback (std::move (c)), nativeImplementation (std::move (p)) {}
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void handleAsyncUpdate() override
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{
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nativeImplementation->runAsync ([weakRecipient = std::weak_ptr<ConcreteScopedContentSharerImpl> (self)] (bool result, const String& error)
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{
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const auto notifyRecipient = [result, error, weakRecipient]
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{
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if (const auto locked = weakRecipient.lock())
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{
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NullCheckedInvocation::invoke (locked->callback, result, error);
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locked->self.reset();
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}
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};
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if (MessageManager::getInstance()->isThisTheMessageThread())
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notifyRecipient();
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else
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MessageManager::callAsync (notifyRecipient);
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});
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}
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ContentSharer::Callback callback;
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std::unique_ptr<ScopedContentSharerInterface> nativeImplementation;
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/* The 'old' native message box API doesn't have a concept of content sharer owners.
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Instead, content sharers have to clean up after themselves, once they're done displaying.
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To allow this mode of usage, the implementation keeps an owning reference to itself,
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which is cleared once the content sharer is closed or asked to quit. To display a content
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sharer box without a scoped lifetime, just create a Pimpl instance without using
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the ScopedContentSharer wrapper, and the Pimpl will destroy itself after it is dismissed.
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*/
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std::shared_ptr<ConcreteScopedContentSharerImpl> self;
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};
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} // namespace juce::detail
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