From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- widget/cocoa/ViewRegion.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 widget/cocoa/ViewRegion.h (limited to 'widget/cocoa/ViewRegion.h') diff --git a/widget/cocoa/ViewRegion.h b/widget/cocoa/ViewRegion.h new file mode 100644 index 0000000000..b2ed0c8835 --- /dev/null +++ b/widget/cocoa/ViewRegion.h @@ -0,0 +1,55 @@ +/* -*- 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 ViewRegion_h +#define ViewRegion_h + +#include "Units.h" +#include "nsTArray.h" + +class nsChildView; + +@class NSView; + +namespace mozilla { + +/** + * Manages a set of NSViews to cover a LayoutDeviceIntRegion. + */ +class ViewRegion { + public: + ~ViewRegion(); + + mozilla::LayoutDeviceIntRegion Region() { return mRegion; } + + /** + * Update the region. + * @param aRegion The new region. + * @param aCoordinateConverter The nsChildView to use for converting + * LayoutDeviceIntRect device pixel coordinates into Cocoa NSRect + * coordinates. + * @param aContainerView The view that's going to be the superview of the + * NSViews which will be created for this region. + * @param aViewCreationCallback A block that instantiates new NSViews. + * @return Whether or not the region changed. + */ + bool UpdateRegion(const mozilla::LayoutDeviceIntRegion& aRegion, + const nsChildView& aCoordinateConverter, + NSView* aContainerView, NSView* (^aViewCreationCallback)()); + + /** + * Return an NSView from the region, if there is any. + */ + NSView* GetAnyView() { return mViews.Length() > 0 ? mViews[0] : NULL; } + + private: + mozilla::LayoutDeviceIntRegion mRegion; + nsTArray mViews; +}; + +} // namespace mozilla + +#endif // ViewRegion_h -- cgit v1.2.3