Move DOMSettableTokenList / DOMTokenList to dom/ folder

Source/core/html/DOMTokenList.cpp

-/*
- * Copyright (C) 2010 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:
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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/html/DOMTokenList.h"
-
-#include "bindings/v8/ExceptionState.h"
-#include "core/dom/ExceptionCode.h"
-#include "core/html/parser/HTMLParserIdioms.h"
-#include "wtf/text/StringBuilder.h"
-
-namespace WebCore {
-
-bool DOMTokenList::validateToken(const AtomicString& token, ExceptionState& es)
-{
-    if (token.isEmpty()) {
-        es.throwDOMException(SyntaxError);
-        return false;
-    }
-
-    unsigned length = token.length();
-    for (unsigned i = 0; i < length; ++i) {
-        if (isHTMLSpace(token[i])) {
-            es.throwDOMException(InvalidCharacterError);
-            return false;
-        }
-    }
-
-    return true;
-}
-
-bool DOMTokenList::validateTokens(const Vector<String>& tokens, ExceptionState& es)
-{
-    for (size_t i = 0; i < tokens.size(); ++i) {
-        if (!validateToken(tokens[i], es))
-            return false;
-    }
-
-    return true;
-}
-
-bool DOMTokenList::contains(const AtomicString& token, ExceptionState& es) const
-{
-    if (!validateToken(token, es))
-        return false;
-    return containsInternal(token);
-}
-
-void DOMTokenList::add(const AtomicString& token, ExceptionState& es)
-{
-    Vector<String> tokens;
-    tokens.append(token.string());
-    add(tokens, es);
-}
-
-void DOMTokenList::add(const Vector<String>& tokens, ExceptionState& es)
-{
-    Vector<String> filteredTokens;
-    for (size_t i = 0; i < tokens.size(); ++i) {
-        if (!validateToken(tokens[i], es))
-            return;
-        if (!containsInternal(tokens[i]))
-            filteredTokens.append(tokens[i]);
-    }
-
-    if (filteredTokens.isEmpty())
-        return;
-
-    setValue(addTokens(value(), filteredTokens));
-}
-
-void DOMTokenList::remove(const AtomicString& token, ExceptionState& es)
-{
-    Vector<String> tokens;
-    tokens.append(token.string());
-    remove(tokens, es);
-}
-
-void DOMTokenList::remove(const Vector<String>& tokens, ExceptionState& es)
-{
-    if (!validateTokens(tokens, es))
-        return;
-
-    // Check using containsInternal first since it is a lot faster than going
-    // through the string character by character.
-    bool found = false;
-    for (size_t i = 0; i < tokens.size(); ++i) {
-        if (containsInternal(tokens[i])) {
-            found = true;
-            break;
-        }
-    }
-
-    if (found)
-        setValue(removeTokens(value(), tokens));
-}
-
-bool DOMTokenList::toggle(const AtomicString& token, ExceptionState& es)
-{
-    if (!validateToken(token, es))
-        return false;
-
-    if (containsInternal(token)) {
-        removeInternal(token);
-        return false;
-    }
-    addInternal(token);
-    return true;
-}
-
-bool DOMTokenList::toggle(const AtomicString& token, bool force, ExceptionState& es)
-{
-    if (!validateToken(token, es))
-        return false;
-
-    if (force)
-        addInternal(token);
-    else
-        removeInternal(token);
-
-    return force;
-}
-
-void DOMTokenList::addInternal(const AtomicString& token)
-{
-    if (!containsInternal(token))
-        setValue(addToken(value(), token));
-}
-
-void DOMTokenList::removeInternal(const AtomicString& token)
-{
-    // Check using contains first since it uses AtomicString comparisons instead
-    // of character by character testing.
-    if (!containsInternal(token))
-        return;
-    setValue(removeToken(value(), token));
-}
-
-String DOMTokenList::addToken(const AtomicString& input, const AtomicString& token)
-{
-    Vector<String> tokens;
-    tokens.append(token.string());
-    return addTokens(input, tokens);
-}
-
-String DOMTokenList::addTokens(const AtomicString& input, const Vector<String>& tokens)
-{
-    bool needsSpace = false;
-
-    StringBuilder builder;
-    if (!input.isEmpty()) {
-        builder.append(input);
-        needsSpace = !isHTMLSpace(input[input.length() - 1]);
-    }
-
-    for (size_t i = 0; i < tokens.size(); ++i) {
-        if (needsSpace)
-            builder.append(' ');
-        builder.append(tokens[i]);
-        needsSpace = true;
-    }
-
-    return builder.toString();
-}
-
-String DOMTokenList::removeToken(const AtomicString& input, const AtomicString& token)
-{
-    Vector<String> tokens;
-    tokens.append(token.string());
-    return removeTokens(input, tokens);
-}
-
-String DOMTokenList::removeTokens(const AtomicString& input, const Vector<String>& tokens)
-{
-    // Algorithm defined at http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#remove-a-token-from-a-string
-    // New spec is at http://dom.spec.whatwg.org/#remove-a-token-from-a-string
-
-    unsigned inputLength = input.length();
-    StringBuilder output; // 3
-    output.reserveCapacity(inputLength);
-    unsigned position = 0; // 4
-
-    // Step 5
-    while (position < inputLength) {
-        if (isHTMLSpace(input[position])) { // 6
-            output.append(input[position++]); // 6.1, 6.2
-            continue; // 6.3
-        }
-
-        // Step 7
-        StringBuilder tokenBuilder;
-        while (position < inputLength && isNotHTMLSpace(input[position]))
-            tokenBuilder.append(input[position++]);
-
-        // Step 8
-        String token = tokenBuilder.toString();
-        if (tokens.contains(token)) {
-            // Step 8.1
-            while (position < inputLength && isHTMLSpace(input[position]))
-                ++position;
-
-            // Step 8.2
-            size_t j = output.length();
-            while (j > 0 && isHTMLSpace(output[j - 1]))
-                --j;
-            output.resize(j);
-
-            // Step 8.3
-            if (position < inputLength && !output.isEmpty())
-                output.append(' ');
-        } else {
-            output.append(token); // Step 9
-        }
-    }
-
-    return output.toString();
-}
-
-} // namespace WebCore