/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef VibrancyManager_h #define VibrancyManager_h #include "mozilla/EnumeratedArray.h" #include "Units.h" @class NSView; class nsChildView; namespace mozilla { class ViewRegion; enum class VibrancyType { // Add new values here, or update MaxEnumValue below if you add them after. Titlebar, }; template <> struct MaxContiguousEnumValue { static constexpr auto value = VibrancyType::Titlebar; }; /** * VibrancyManager takes care of updating the vibrant regions of a window. * Vibrancy is a visual look that was introduced on OS X starting with 10.10. * An app declares vibrant window regions to the window server, and the window * server will display a blurred rendering of the screen contents from behind * the window in these areas, behind the actual window contents. Consequently, * the effect is only visible in areas where the window contents are not * completely opaque. Usually this is achieved by clearing the background of * the window prior to drawing in the vibrant areas. This is possible even if * the window is declared as opaque. */ class VibrancyManager { public: /** * Create a new VibrancyManager instance and provide it with an NSView * to attach NSVisualEffectViews to. * * @param aCoordinateConverter The nsChildView to use for converting * nsIntRect device pixel coordinates into Cocoa NSRect coordinates. Must * outlive this VibrancyManager instance. * @param aContainerView The view that's going to be the superview of the * NSVisualEffectViews which will be created for vibrant regions. */ VibrancyManager(const nsChildView& aCoordinateConverter, NSView* aContainerView); ~VibrancyManager(); /** * Update the placement of the NSVisualEffectViews inside the container * NSView so that they cover aRegion, and create new NSVisualEffectViews * or remove existing ones as needed. * @param aType The vibrancy type to use in the region. * @param aRegion The vibrant area, in device pixels. * @return Whether the region changed. */ bool UpdateVibrantRegion(VibrancyType aType, const LayoutDeviceIntRegion& aRegion); protected: const nsChildView& mCoordinateConverter; NSView* mContainerView; EnumeratedArray> mVibrantRegions; }; } // namespace mozilla #endif // VibrancyManager_h