third_party/WebKit/Source/core/css/StyleRuleKeyframe.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "core/css/StyleRuleKeyframe.h"
   7
   8 #include "core/css/StylePropertySet.h"
   9 #include "core/css/parser/CSSParser.h"
  10 #include "wtf/text/StringBuilder.h"
  11
  12 namespace blink {
  13
  14 StyleRuleKeyframe::StyleRuleKeyframe(PassOwnPtr<Vector<double>> keys, PassRefPtrWillBeRawPtr<StylePropertySet> properties)
  15 : StyleRuleBase(Keyframe)
  16 , m_properties(properties)
  17 , m_keys(*keys)
  18 {
  19 }
  20
  21 String StyleRuleKeyframe::keyText() const
  22 {
  23     ASSERT(!m_keys.isEmpty());
  24
  25     StringBuilder keyText;
  26     for (unsigned i = 0; i < m_keys.size(); ++i) {
  27         if (i)
  28             keyText.append(',');
  29         keyText.appendNumber(m_keys.at(i) * 100);
  30         keyText.append('%');
  31     }
  32
  33     return keyText.toString();
  34 }
  35
  36 bool StyleRuleKeyframe::setKeyText(const String& keyText)
  37 {
  38     ASSERT(!keyText.isNull());
  39
  40     OwnPtr<Vector<double>> keys = CSSParser::parseKeyframeKeyList(keyText);
  41     if (!keys || keys->isEmpty())
  42         return false;
  43
  44     m_keys = *keys;
  45     return true;
  46 }
  47
  48 const Vector<double>& StyleRuleKeyframe::keys() const
  49 {
  50     return m_keys;
  51 }
  52
  53 MutableStylePropertySet& StyleRuleKeyframe::mutableProperties()
  54 {
  55     if (!m_properties->isMutable())
  56         m_properties = m_properties->mutableCopy();
  57     return *toMutableStylePropertySet(m_properties.get());
  58 }
  59
  60 String StyleRuleKeyframe::cssText() const
  61 {
  62     StringBuilder result;
  63     result.append(keyText());
  64     result.appendLiteral(" { ");
  65     String decls = m_properties->asText();
  66     result.append(decls);
  67     if (!decls.isEmpty())
  68         result.append(' ');
  69     result.append('}');
  70     return result.toString();
  71 }
  72
  73 DEFINE_TRACE_AFTER_DISPATCH(StyleRuleKeyframe)
  74 {
  75     visitor->trace(m_properties);
  76     StyleRuleBase::traceAfterDispatch(visitor);
  77 }
  78
  79 } // namespace blink