/*
  ==============================================================================

   This file is part of the JUCE framework.
   Copyright (c) Raw Material Software Limited

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

#if JUCE_MAC || DOXYGEN

//==============================================================================
/**
    A Mac-specific class that can create and embed an NSView inside itself.

    To use it, create one of these, put it in place and make sure it's visible in a
    window, then use setView() to assign an NSView to it. The view will then be
    moved and resized to follow the movements of this component.

    Of course, since the view is a native object, it'll obliterate any
    JUCE components that may overlap this component, but that's life.

    @tags{GUI}
*/
class JUCE_API  NSViewComponent   : public Component
{
public:
    //==============================================================================
    /** Create an initially-empty container. */
    NSViewComponent();

    /** Destructor. */
    ~NSViewComponent() override;

    /** Assigns an NSView to this peer.

        The view will be retained and released by this component for as long as
        it is needed. To remove the current view, just call setView (nullptr).

        Note: A void* is used here to avoid including the cocoa headers as
        part of JuceHeader.h, but the method expects an NSView*.
    */
    void setView (void* nsView);

    /** Returns the current NSView.

        Note: A void* is returned here to avoid the needing to include the cocoa
        headers, so you should just cast the return value to an NSView*.
    */
    void* getView() const;

    /** Resizes this component to fit the view that it contains. */
    void resizeToFitView();

    /** Resizes the NSView to match the bounds of this component.

        Most of the time, this will be done for you automatically.
    */
    void resizeViewToFit();

    //==============================================================================
    /** @internal */
    void paint (Graphics&) override;
    /** @internal */
    void alphaChanged() override;
    /** @internal */
    static ReferenceCountedObject* attachViewToComponent (Component&, void*);
    /** @internal */
    std::unique_ptr<AccessibilityHandler> createAccessibilityHandler() override;

private:
    ReferenceCountedObjectPtr<ReferenceCountedObject> attachment;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (NSViewComponent)
};

#endif

} // namespace juce