Remove StyleInvalidator machinery.

sky/engine/core/css/invalidation/DescendantInvalidationSet.cpp

-/*
- * Copyright (C) 2014 Google 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.
- *     * 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.
- *     * 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 "core/css/invalidation/DescendantInvalidationSet.h"
-
-#include "core/css/resolver/StyleResolver.h"
-#include "core/dom/Element.h"
-
-namespace blink {
-
-DescendantInvalidationSet::DescendantInvalidationSet()
-    : m_allDescendantsMightBeInvalid(false)
-    , m_customPseudoInvalid(false)
-    , m_treeBoundaryCrossing(false)
-{
-}
-
-bool DescendantInvalidationSet::invalidatesElement(Element& element) const
-{
-    if (m_allDescendantsMightBeInvalid)
-        return true;
-
-    if (m_tagNames && m_tagNames->contains(element.tagQName().localName()))
-        return true;
-
-    if (element.hasID() && m_ids && m_ids->contains(element.idForStyleResolution()))
-        return true;
-
-    if (element.hasClass() && m_classes) {
-        const SpaceSplitString& classNames = element.classNames();
-        for (HashSet<AtomicString>::const_iterator it = m_classes->begin(); it != m_classes->end(); ++it) {
-            if (classNames.contains(*it))
-                return true;
-        }
-    }
-
-    if (element.hasAttributes() && m_attributes) {
-        for (HashSet<AtomicString>::const_iterator it = m_attributes->begin(); it != m_attributes->end(); ++it) {
-            if (element.hasAttribute(*it))
-                return true;
-        }
-    }
-
-    return false;
-}
-
-void DescendantInvalidationSet::combine(const DescendantInvalidationSet& other)
-{
-    // No longer bother combining data structures, since the whole subtree is deemed invalid.
-    if (wholeSubtreeInvalid())
-        return;
-
-    if (other.wholeSubtreeInvalid()) {
-        setWholeSubtreeInvalid();
-        return;
-    }
-
-    if (other.customPseudoInvalid())
-        setCustomPseudoInvalid();
-
-    if (other.treeBoundaryCrossing())
-        setTreeBoundaryCrossing();
-
-    if (other.m_classes) {
-        HashSet<AtomicString>::const_iterator end = other.m_classes->end();
-        for (HashSet<AtomicString>::const_iterator it = other.m_classes->begin(); it != end; ++it)
-            addClass(*it);
-    }
-
-    if (other.m_ids) {
-        HashSet<AtomicString>::const_iterator end = other.m_ids->end();
-        for (HashSet<AtomicString>::const_iterator it = other.m_ids->begin(); it != end; ++it)
-            addId(*it);
-    }
-
-    if (other.m_tagNames) {
-        HashSet<AtomicString>::const_iterator end = other.m_tagNames->end();
-        for (HashSet<AtomicString>::const_iterator it = other.m_tagNames->begin(); it != end; ++it)
-            addTagName(*it);
-    }
-
-    if (other.m_attributes) {
-        HashSet<AtomicString>::const_iterator end = other.m_attributes->end();
-        for (HashSet<AtomicString>::const_iterator it = other.m_attributes->begin(); it != end; ++it)
-            addAttribute(*it);
-    }
-}
-
-HashSet<AtomicString>& DescendantInvalidationSet::ensureClassSet()
-{
-    if (!m_classes)
-        m_classes = adoptPtr(new HashSet<AtomicString>);
-    return *m_classes;
-}
-
-HashSet<AtomicString>& DescendantInvalidationSet::ensureIdSet()
-{
-    if (!m_ids)
-        m_ids = adoptPtr(new HashSet<AtomicString>);
-    return *m_ids;
-}
-
-HashSet<AtomicString>& DescendantInvalidationSet::ensureTagNameSet()
-{
-    if (!m_tagNames)
-        m_tagNames = adoptPtr(new HashSet<AtomicString>);
-    return *m_tagNames;
-}
-
-HashSet<AtomicString>& DescendantInvalidationSet::ensureAttributeSet()
-{
-    if (!m_attributes)
-        m_attributes = adoptPtr(new HashSet<AtomicString>);
-    return *m_attributes;
-}
-
-void DescendantInvalidationSet::addClass(const AtomicString& className)
-{
-    if (wholeSubtreeInvalid())
-        return;
-    ensureClassSet().add(className);
-}
-
-void DescendantInvalidationSet::addId(const AtomicString& id)
-{
-    if (wholeSubtreeInvalid())
-        return;
-    ensureIdSet().add(id);
-}
-
-void DescendantInvalidationSet::addTagName(const AtomicString& tagName)
-{
-    if (wholeSubtreeInvalid())
-        return;
-    ensureTagNameSet().add(tagName);
-}
-
-void DescendantInvalidationSet::addAttribute(const AtomicString& attribute)
-{
-    if (wholeSubtreeInvalid())
-        return;
-    ensureAttributeSet().add(attribute);
-}
-
-void DescendantInvalidationSet::setWholeSubtreeInvalid()
-{
-    if (m_allDescendantsMightBeInvalid)
-        return;
-
-    m_allDescendantsMightBeInvalid = true;
-    m_treeBoundaryCrossing = false;
-    m_classes = nullptr;
-    m_ids = nullptr;
-    m_tagNames = nullptr;
-    m_attributes = nullptr;
-}
-
-void DescendantInvalidationSet::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_classes);
-    visitor->trace(m_ids);
-    visitor->trace(m_tagNames);
-    visitor->trace(m_attributes);
-#endif
-}
-
-#ifndef NDEBUG
-void DescendantInvalidationSet::show() const
-{
-    fprintf(stderr, "DescendantInvalidationSet { ");
-    if (m_allDescendantsMightBeInvalid)
-        fprintf(stderr, "* ");
-    if (m_customPseudoInvalid)
-        fprintf(stderr, "::custom ");
-    if (m_treeBoundaryCrossing)
-        fprintf(stderr, "::shadow/deep/ ");
-    if (m_ids) {
-        for (HashSet<AtomicString>::const_iterator it = m_ids->begin(); it != m_ids->end(); ++it)
-            fprintf(stderr, "#%s ", (*it).ascii().data());
-    }
-    if (m_classes) {
-        for (HashSet<AtomicString>::const_iterator it = m_classes->begin(); it != m_classes->end(); ++it)
-            fprintf(stderr, ".%s ", (*it).ascii().data());
-    }
-    if (m_tagNames) {
-        for (HashSet<AtomicString>::const_iterator it = m_tagNames->begin(); it != m_tagNames->end(); ++it)
-            fprintf(stderr, "<%s> ", (*it).ascii().data());
-    }
-    if (m_attributes) {
-        for (HashSet<AtomicString>::const_iterator it = m_attributes->begin(); it != m_attributes->end(); ++it)
-            fprintf(stderr, "[%s] ", (*it).ascii().data());
-    }
-    fprintf(stderr, "}\n");
-}
-#endif // NDEBUG
-
-} // namespace blink