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| 1 /* | |
| 2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above | |
| 9 * copyright notice, this list of conditions and the following | |
| 10 * disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above | |
| 12 * copyright notice, this list of conditions and the following | |
| 13 * disclaimer in the documentation and/or other materials | |
| 14 * provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY | |
| 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, | |
| 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
| 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF | |
| 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 * SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #ifndef RenderNamedFlowFragment_h | |
| 31 #define RenderNamedFlowFragment_h | |
| 32 | |
| 33 #include "core/rendering/RenderRegion.h" | |
| 34 | |
| 35 namespace WebCore { | |
| 36 | |
| 37 class Element; | |
| 38 class RenderStyle; | |
| 39 | |
| 40 // RenderNamedFlowFragment represents a region that is responsible for the fragm
entation of | |
| 41 // the RenderNamedFlowThread content. | |
| 42 // | |
| 43 // A RenderNamedFlowFragment object is created as an anonymous child for a Rende
rBlockFlow object | |
| 44 // that has a valid -webkit-flow-from property. | |
| 45 // | |
| 46 // This allows a non-replaced block to behave like a region if needed, following
the CSSRegions specification: | |
| 47 // http://dev.w3.org/csswg/css-regions/#the-flow-from-property. | |
| 48 // list-item, table-caption, table-cell can become regions in addition to block
| inline-block. | |
| 49 | |
| 50 class RenderNamedFlowFragment FINAL : public RenderRegion { | |
| 51 public: | |
| 52 virtual ~RenderNamedFlowFragment(); | |
| 53 static RenderNamedFlowFragment* createAnonymous(Document*); | |
| 54 | |
| 55 void setStyleForNamedFlowFragment(const RenderStyle*); | |
| 56 | |
| 57 virtual bool isRenderNamedFlowFragment() const OVERRIDE { return true; } | |
| 58 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OV
ERRIDE; | |
| 59 | |
| 60 virtual LayoutUnit maxPageLogicalHeight() const OVERRIDE; | |
| 61 | |
| 62 protected: | |
| 63 RenderNamedFlowFragment(); | |
| 64 | |
| 65 private: | |
| 66 virtual bool shouldHaveAutoLogicalHeight() const OVERRIDE; | |
| 67 virtual const char* renderName() const OVERRIDE { return "RenderNamedFlowFra
gment"; } | |
| 68 }; | |
| 69 | |
| 70 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderNamedFlowFragment, isRenderNamedFlowFragme
nt()); | |
| 71 | |
| 72 } | |
| 73 | |
| 74 #endif // RenderNamedFlowFragment_h | |
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Chromium Code Reviews
Issue 143323014:
*** DO NOT LAND *** Attempt to understand Regions complexity
Base URL: svn://svn.chromium.org/blink/trunk