| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * Copyright (C) 2017 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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 "PseudoElement.h" |
| |
| #include "CSSAnimationController.h" |
| #include "ContentData.h" |
| #include "DocumentTimeline.h" |
| #include "InspectorInstrumentation.h" |
| #include "RenderElement.h" |
| #include "RenderImage.h" |
| #include "RenderQuote.h" |
| #include "RuntimeEnabledFeatures.h" |
| #include "StyleResolver.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(PseudoElement); |
| |
| const QualifiedName& pseudoElementTagName() |
| { |
| static NeverDestroyed<QualifiedName> name(nullAtom(), "<pseudo>", nullAtom()); |
| return name; |
| } |
| |
| String PseudoElement::pseudoElementNameForEvents(PseudoId pseudoId) |
| { |
| static NeverDestroyed<const String> after(MAKE_STATIC_STRING_IMPL("::after")); |
| static NeverDestroyed<const String> before(MAKE_STATIC_STRING_IMPL("::before")); |
| switch (pseudoId) { |
| case AFTER: |
| return after; |
| case BEFORE: |
| return before; |
| default: |
| return emptyString(); |
| } |
| } |
| |
| PseudoElement::PseudoElement(Element& host, PseudoId pseudoId) |
| : Element(pseudoElementTagName(), host.document(), CreatePseudoElement) |
| , m_hostElement(&host) |
| , m_pseudoId(pseudoId) |
| { |
| ASSERT(pseudoId == BEFORE || pseudoId == AFTER); |
| setHasCustomStyleResolveCallbacks(); |
| } |
| |
| PseudoElement::~PseudoElement() |
| { |
| ASSERT(!m_hostElement); |
| } |
| |
| Ref<PseudoElement> PseudoElement::create(Element& host, PseudoId pseudoId) |
| { |
| auto pseudoElement = adoptRef(*new PseudoElement(host, pseudoId)); |
| |
| InspectorInstrumentation::pseudoElementCreated(host.document().page(), pseudoElement.get()); |
| |
| return pseudoElement; |
| } |
| |
| void PseudoElement::clearHostElement() |
| { |
| InspectorInstrumentation::pseudoElementDestroyed(document().page(), *this); |
| |
| if (RuntimeEnabledFeatures::sharedFeatures().cssAnimationsAndCSSTransitionsBackedByWebAnimationsEnabled()) { |
| if (auto* timeline = document().existingTimeline()) |
| timeline->cancelAnimationsForElement(*this); |
| } else if (auto* frame = document().frame()) |
| frame->animation().cancelAnimations(*this); |
| |
| m_hostElement = nullptr; |
| } |
| |
| bool PseudoElement::rendererIsNeeded(const RenderStyle& style) |
| { |
| return pseudoElementRendererIsNeeded(&style); |
| } |
| |
| } // namespace |