Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Google Inc. 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 are |
| 6 | * met: |
| 7 | * |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Neither the name of Google Inc. nor the names of its |
| 11 | * contributors may be used to endorse or promote products derived from |
| 12 | * this software without specific prior written permission. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 15 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 16 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 17 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 18 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 19 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 20 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
| 27 | #ifndef PseudoElement_h |
| 28 | #define PseudoElement_h |
| 29 | |
| 30 | #include "core/dom/Element.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 31 | #include "core/rendering/style/RenderStyle.h" |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 32 | #include "wtf/Forward.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 33 | |
| 34 | namespace WebCore { |
| 35 | |
| 36 | class PseudoElement FINAL : public Element { |
| 37 | public: |
| 38 | static PassRefPtr<PseudoElement> create(Element* parent, PseudoId pseudoId) |
| 39 | { |
| 40 | return adoptRef(new PseudoElement(parent, pseudoId)); |
| 41 | } |
| 42 | ~PseudoElement(); |
| 43 | |
| 44 | virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE; |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 45 | virtual void attach(const AttachContext& = AttachContext()) OVERRIDE; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 46 | virtual bool rendererIsNeeded(const NodeRenderingContext&) OVERRIDE; |
| 47 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 48 | // As per http://dev.w3.org/csswg/css3-regions/#flow-into, pseudo-elements such as ::first-line, ::first-letter, ::before or ::after |
| 49 | // cannot be directly collected into a named flow. |
| 50 | virtual bool shouldMoveToFlowThread(RenderStyle*) const OVERRIDE { return false; } |
| 51 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 52 | virtual bool canStartSelection() const OVERRIDE { return false; } |
| 53 | virtual bool canContainRangeEndPoint() const OVERRIDE { return false; } |
| 54 | |
| 55 | static String pseudoElementNameForEvents(PseudoId); |
| 56 | |
| 57 | private: |
| 58 | PseudoElement(Element*, PseudoId); |
| 59 | |
| 60 | virtual void didRecalcStyle(StyleChange) OVERRIDE; |
| 61 | virtual PseudoId customPseudoId() const OVERRIDE { return m_pseudoId; } |
| 62 | |
| 63 | PseudoId m_pseudoId; |
| 64 | }; |
| 65 | |
| 66 | const QualifiedName& pseudoElementTagName(); |
| 67 | |
| 68 | inline bool pseudoElementRendererIsNeeded(const RenderStyle* style) |
| 69 | { |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 70 | return style && style->display() != NONE && (style->styleType() == BACKDROP || style->contentData() || !style->regionThread().isEmpty()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | } // namespace |
| 74 | |
| 75 | #endif |