From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Tue, 27 Jun 2017 06:07:23 +0000 Subject: webkitgtk-2.16.5 --- .../WebCore/page/scrolling/ScrollSnapOffsetsInfo.h | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Source/WebCore/page/scrolling/ScrollSnapOffsetsInfo.h (limited to 'Source/WebCore/page/scrolling/ScrollSnapOffsetsInfo.h') diff --git a/Source/WebCore/page/scrolling/ScrollSnapOffsetsInfo.h b/Source/WebCore/page/scrolling/ScrollSnapOffsetsInfo.h new file mode 100644 index 000000000..63bd9638b --- /dev/null +++ b/Source/WebCore/page/scrolling/ScrollSnapOffsetsInfo.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2016 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#pragma once + +#include + +namespace WebCore { + +template +struct ScrollOffsetRange { + T start; + T end; +}; + +template +struct ScrollSnapOffsetsInfo { + Vector horizontalSnapOffsets; + Vector verticalSnapOffsets; + + // Snap offset ranges represent non-empty ranges of scroll offsets in which scrolling may rest after scroll snapping. + // These are used in two cases: (1) for proximity scroll snapping, where portions of areas between adjacent snap offsets + // may emit snap offset ranges, and (2) in the case where the snap area is larger than the snap port, in which case areas + // where the snap port fits within the snap area are considered to be valid snap positions. + Vector> horizontalSnapOffsetRanges; + Vector> verticalSnapOffsetRanges; +}; + +}; // namespace WebCore -- cgit v1.2.1