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JUCE/modules/juce_gui_basics/detail/juce_AlertWindowHelpers.h

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2022 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
Agreement and JUCE Privacy Policy.
End User License Agreement: www.juce.com/juce-7-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce::detail
{
struct AlertWindowHelpers
{
AlertWindowHelpers() = delete;
static std::unique_ptr<ScopedMessageBoxInterface> create (const MessageBoxOptions& opts)
{
class AlertWindowImpl : public detail::ScopedMessageBoxInterface
{
public:
explicit AlertWindowImpl (const MessageBoxOptions& opts) : options (opts) {}
void runAsync (std::function<void (int)> recipient) override
{
if (auto* comp = setUpAlert())
comp->enterModalState (true, ModalCallbackFunction::create (std::move (recipient)), true);
else
NullCheckedInvocation::invoke (recipient, 0);
}
int runSync() override
{
#if JUCE_MODAL_LOOPS_PERMITTED
if (auto comp = rawToUniquePtr (setUpAlert()))
return comp->runModalLoop();
#endif
jassertfalse;
return 0;
}
void close() override
{
if (alert != nullptr)
if (alert->isCurrentlyModal())
alert->exitModalState();
alert = nullptr;
}
private:
Component* setUpAlert()
{
auto* component = options.getAssociatedComponent();
auto& lf = component != nullptr ? component->getLookAndFeel()
: LookAndFeel::getDefaultLookAndFeel();
alert = lf.createAlertWindow (options.getTitle(),
options.getMessage(),
options.getButtonText (0),
options.getButtonText (1),
options.getButtonText (2),
options.getIconType(),
options.getNumButtons(),
component);
if (alert == nullptr)
{
// You have to return an alert box!
jassertfalse;
return nullptr;
}
if (auto* parent = options.getParentComponent())
{
parent->addAndMakeVisible (alert);
if (options.getAssociatedComponent() == nullptr)
alert->setCentrePosition (parent->getLocalBounds().getCentre());
}
alert->setAlwaysOnTop (WindowUtils::areThereAnyAlwaysOnTopWindows());
return alert;
}
const MessageBoxOptions options;
Component::SafePointer<AlertWindow> alert;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AlertWindowImpl)
};
return std::make_unique<AlertWindowImpl> (opts);
}
};
} // namespace juce::detail