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Side by Side Diff: third_party/WebKit/Source/core/page/scrolling/StickyPositionScrollingConstraints.cpp

Issue 2701993002: DO NOT COMMIT: Results of running new (proposed) clang-format on Blink (Closed)
Patch Set: Created 3 years, 10 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "core/page/scrolling/StickyPositionScrollingConstraints.h" 5 #include "core/page/scrolling/StickyPositionScrollingConstraints.h"
6 6
7 namespace blink { 7 namespace blink {
8 8
9 FloatSize StickyPositionScrollingConstraints::computeStickyOffset( 9 FloatSize StickyPositionScrollingConstraints::computeStickyOffset(
10 const FloatRect& viewportRect) const { 10 const FloatRect& viewportRect) const {
11 FloatRect boxRect = m_scrollContainerRelativeStickyBoxRect; 11 FloatRect boxRect = m_scrollContainerRelativeStickyBoxRect;
12 12
13 if (hasAnchorEdge(AnchorEdgeRight)) { 13 if (hasAnchorEdge(AnchorEdgeRight)) {
14 float rightLimit = viewportRect.maxX() - m_rightOffset; 14 float rightLimit = viewportRect.maxX() - m_rightOffset;
15 float rightDelta = std::min<float>( 15 float rightDelta = std::min<float>(
16 0, rightLimit - m_scrollContainerRelativeStickyBoxRect.maxX()); 16 0, rightLimit - m_scrollContainerRelativeStickyBoxRect.maxX());
17 float availableSpace = 17 float availableSpace =
18 std::min<float>(0, m_scrollContainerRelativeContainingBlockRect.x() - 18 std::min<float>(0,
19 m_scrollContainerRelativeStickyBoxRect.x()); 19 m_scrollContainerRelativeContainingBlockRect.x() -
20 m_scrollContainerRelativeStickyBoxRect.x());
20 if (rightDelta < availableSpace) 21 if (rightDelta < availableSpace)
21 rightDelta = availableSpace; 22 rightDelta = availableSpace;
22 23
23 boxRect.move(rightDelta, 0); 24 boxRect.move(rightDelta, 0);
24 } 25 }
25 26
26 if (hasAnchorEdge(AnchorEdgeLeft)) { 27 if (hasAnchorEdge(AnchorEdgeLeft)) {
27 float leftLimit = viewportRect.x() + m_leftOffset; 28 float leftLimit = viewportRect.x() + m_leftOffset;
28 float leftDelta = std::max<float>( 29 float leftDelta = std::max<float>(
29 0, leftLimit - m_scrollContainerRelativeStickyBoxRect.x()); 30 0, leftLimit - m_scrollContainerRelativeStickyBoxRect.x());
30 float availableSpace = 31 float availableSpace =
31 std::max<float>(0, m_scrollContainerRelativeContainingBlockRect.maxX() - 32 std::max<float>(0,
32 m_scrollContainerRelativeStickyBoxRect.maxX()); 33 m_scrollContainerRelativeContainingBlockRect.maxX() -
34 m_scrollContainerRelativeStickyBoxRect.maxX());
33 if (leftDelta > availableSpace) 35 if (leftDelta > availableSpace)
34 leftDelta = availableSpace; 36 leftDelta = availableSpace;
35 37
36 boxRect.move(leftDelta, 0); 38 boxRect.move(leftDelta, 0);
37 } 39 }
38 40
39 if (hasAnchorEdge(AnchorEdgeBottom)) { 41 if (hasAnchorEdge(AnchorEdgeBottom)) {
40 float bottomLimit = viewportRect.maxY() - m_bottomOffset; 42 float bottomLimit = viewportRect.maxY() - m_bottomOffset;
41 float bottomDelta = std::min<float>( 43 float bottomDelta = std::min<float>(
42 0, bottomLimit - m_scrollContainerRelativeStickyBoxRect.maxY()); 44 0, bottomLimit - m_scrollContainerRelativeStickyBoxRect.maxY());
43 float availableSpace = 45 float availableSpace =
44 std::min<float>(0, m_scrollContainerRelativeContainingBlockRect.y() - 46 std::min<float>(0,
45 m_scrollContainerRelativeStickyBoxRect.y()); 47 m_scrollContainerRelativeContainingBlockRect.y() -
48 m_scrollContainerRelativeStickyBoxRect.y());
46 if (bottomDelta < availableSpace) 49 if (bottomDelta < availableSpace)
47 bottomDelta = availableSpace; 50 bottomDelta = availableSpace;
48 51
49 boxRect.move(0, bottomDelta); 52 boxRect.move(0, bottomDelta);
50 } 53 }
51 54
52 if (hasAnchorEdge(AnchorEdgeTop)) { 55 if (hasAnchorEdge(AnchorEdgeTop)) {
53 float topLimit = viewportRect.y() + m_topOffset; 56 float topLimit = viewportRect.y() + m_topOffset;
54 float topDelta = std::max<float>( 57 float topDelta = std::max<float>(
55 0, topLimit - m_scrollContainerRelativeStickyBoxRect.y()); 58 0, topLimit - m_scrollContainerRelativeStickyBoxRect.y());
56 float availableSpace = 59 float availableSpace =
57 std::max<float>(0, m_scrollContainerRelativeContainingBlockRect.maxY() - 60 std::max<float>(0,
58 m_scrollContainerRelativeStickyBoxRect.maxY()); 61 m_scrollContainerRelativeContainingBlockRect.maxY() -
62 m_scrollContainerRelativeStickyBoxRect.maxY());
59 if (topDelta > availableSpace) 63 if (topDelta > availableSpace)
60 topDelta = availableSpace; 64 topDelta = availableSpace;
61 65
62 boxRect.move(0, topDelta); 66 boxRect.move(0, topDelta);
63 } 67 }
64 68
65 return boxRect.location() - m_scrollContainerRelativeStickyBoxRect.location(); 69 return boxRect.location() - m_scrollContainerRelativeStickyBoxRect.location();
66 } 70 }
67 71
68 } // namespace blink 72 } // namespace blink
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