third_party/WebKit/Source/build/scripts/templates/CSSOMKeywords.cpp.tmpl

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/css/cssom/CSSOMKeywords.h"

#include "core/css/CSSPropertyIDTemplates.h"
#include "core/css/cssom/CSSKeywordValue.h"
#include "wtf/HashMap.h"

namespace blink {

namespace {

using KeywordTable = HashMap<CSSPropertyID, Vector<CSSValueID>>;

KeywordTable createKeywordTable()
{
    KeywordTable table;

    {% for property_id, property in properties.items() if property.keywordIDs %}
    {
        Vector<CSSValueID> {{property.lower_camel_name}}Keywords;
        {% for keywordValueID in property.keywordIDs %}
        {{property.lower_camel_name}}Keywords.append({{keywordValueID}});
        {% endfor %}
        table.set({{property_id}}, {{property.lower_camel_name}}Keywords);
    }
    {% endfor %}
    return table;
}

KeywordTable& keywordTable()
{
    DEFINE_STATIC_LOCAL(KeywordTable, keywordTable, (createKeywordTable()));
    return keywordTable;
}

} // namespace

bool CSSOMKeywords::validKeywordForProperty(CSSPropertyID id, const CSSKeywordValue& keyword)
{
    CSSValueID valueID = keyword.keywordValueID();
    if (valueID == CSSValueInvalid) {
        return false;
    }

    if (valueID == CSSValueInherit || valueID == CSSValueInitial || valueID == CSSValueUnset) {
        // These are css-wide keywords that are valid for all properties.
        return true;
    }

    const KeywordTable::iterator tableIterator = keywordTable().find(id);
    if (tableIterator == keywordTable().end()) {
        return false;
    }

    return tableIterator->value.contains(valueID);
}

} // namespace blink