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authorLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
commit32761a6cee1d0dee366b885b7b9c777e67885688 (patch)
treed6bec92bebfb216f4126356e55518842c2f476a1 /Source/WebCore/rendering/SimpleLineLayoutFlowContents.cpp
parenta4e969f4965059196ca948db781e52f7cfebf19e (diff)
downloadWebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz
webkitgtk-2.4.11webkitgtk-2.4.11
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diff --git a/Source/WebCore/rendering/SimpleLineLayoutFlowContents.cpp b/Source/WebCore/rendering/SimpleLineLayoutFlowContents.cpp
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-/*
- * Copyright (C) 2014 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.
- */
-
-#include "config.h"
-#include "SimpleLineLayoutFlowContents.h"
-
-#include "RenderBlockFlow.h"
-#include "RenderChildIterator.h"
-#include "RenderLineBreak.h"
-#include "RenderText.h"
-
-namespace WebCore {
-namespace SimpleLineLayout {
-
-static Vector<FlowContents::Segment> initializeSegments(const RenderBlockFlow& flow)
-{
- unsigned numberOfChildren = 0;
- auto children = childrenOfType<RenderObject>(flow);
- for (auto it = children.begin(), end = children.end(); it != end; ++it)
- ++numberOfChildren;
- Vector<FlowContents::Segment> segments;
- segments.reserveCapacity(numberOfChildren);
- unsigned startPosition = 0;
- for (const auto& child : childrenOfType<RenderObject>(flow)) {
- if (is<RenderText>(child)) {
- const auto& textChild = downcast<RenderText>(child);
- unsigned textLength = textChild.text()->length();
- segments.append(FlowContents::Segment { startPosition, startPosition + textLength, textChild.text(), textChild });
- startPosition += textLength;
- continue;
- }
- if (is<RenderLineBreak>(child)) {
- segments.append(FlowContents::Segment { startPosition, startPosition, String(), child });
- continue;
- }
- ASSERT_NOT_REACHED();
- }
- return segments;
-}
-
-FlowContents::FlowContents(const RenderBlockFlow& flow)
- : m_segments(initializeSegments(flow))
- , m_lastSegmentIndex(0)
-{
-}
-
-unsigned FlowContents::segmentIndexForRunSlow(unsigned start, unsigned end) const
-{
- auto it = std::lower_bound(m_segments.begin(), m_segments.end(), start, [](const Segment& segment, unsigned start) {
- return segment.end <= start;
- });
- ASSERT(it != m_segments.end());
- ASSERT_UNUSED(end, end <= it->end);
- auto index = it - m_segments.begin();
- m_lastSegmentIndex = index;
- return index;
-}
-
-}
-}