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1 /* | |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | |
3 * | |
4 * This library is free software; you can redistribute it and/or | |
5 * modify it under the terms of the GNU Library General Public | |
6 * License as published by the Free Software Foundation; either | |
7 * version 2 of the License, or (at your option) any later version. | |
8 * | |
9 * This library is distributed in the hope that it will be useful, | |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 * Library General Public License for more details. | |
13 * | |
14 * You should have received a copy of the GNU Library General Public License | |
15 * along with this library; see the file COPYING.LIB. If not, write to | |
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
17 * Boston, MA 02110-1301, USA. | |
18 * | |
19 */ | |
20 | |
21 #ifndef RenderBR_h | |
22 #define RenderBR_h | |
23 | |
24 #include "core/rendering/RenderText.h" | |
25 | |
26 /* | |
27 * The whole class here is a hack to get <br> working, as long as we don't have
support for | |
28 * CSS2 :before and :after pseudo elements | |
29 */ | |
30 namespace blink { | |
31 | |
32 class RenderBR final : public RenderText { | |
33 public: | |
34 explicit RenderBR(Node*); | |
35 virtual ~RenderBR(); | |
36 | |
37 virtual const char* renderName() const override { return "RenderBR"; } | |
38 | |
39 virtual LayoutRect selectionRectForPaintInvalidation(const LayoutLayerModelO
bject* /*paintInvalidationContainer*/) const override { return LayoutRect(); } | |
40 | |
41 virtual float width(unsigned /*from*/, unsigned /*len*/, const Font&, float
/*xPos*/, TextDirection, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/ ,
GlyphOverflow* = 0) const override { return 0; } | |
42 virtual float width(unsigned /*from*/, unsigned /*len*/, float /*xpos*/, Tex
tDirection, bool = false /*firstLine*/, HashSet<const SimpleFontData*>* = 0 /*fa
llbackFonts*/, GlyphOverflow* = 0) const override { return 0; } | |
43 | |
44 int lineHeight(bool firstLine) const; | |
45 | |
46 // overrides | |
47 virtual bool isOfType(LayoutObjectType type) const override { return type ==
LayoutObjectBr || RenderText::isOfType(type); } | |
48 | |
49 virtual int caretMinOffset() const override; | |
50 virtual int caretMaxOffset() const override; | |
51 | |
52 virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override f
inal; | |
53 | |
54 protected: | |
55 virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) ov
erride; | |
56 }; | |
57 | |
58 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderBR, isBR()); | |
59 | |
60 } // namespace blink | |
61 | |
62 #endif // RenderBR_h | |
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