Remove OSX-specific <meter> rendering.

third_party/WebKit/Source/core/html/HTMLMeterElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "core/html/HTMLMeterElement.h"
 
 #include "bindings/core/v8/ExceptionMessages.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/HTMLNames.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/frame/UseCounter.h"
+#include "core/html/HTMLDivElement.h"
 #include "core/html/parser/HTMLParserIdioms.h"
-#include "core/html/shadow/MeterShadowElement.h"
-#include "core/layout/LayoutMeter.h"
-#include "core/layout/LayoutTheme.h"
+#include "core/layout/LayoutObject.h"
+#include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 HTMLMeterElement::HTMLMeterElement(Document& document)
     : LabelableElement(meterTag, document)
 {
     UseCounter::count(document, UseCounter::MeterElement);
 }
 
 HTMLMeterElement::~HTMLMeterElement()
 {
 }
 
 PassRefPtrWillBeRawPtr<HTMLMeterElement> HTMLMeterElement::create(Document& document)
 {
     RefPtrWillBeRawPtr<HTMLMeterElement> meter = adoptRefWillBeNoop(new HTMLMeterElement(document));
     meter->ensureUserAgentShadowRoot();
     return meter.release();
 }
 
 LayoutObject* HTMLMeterElement::createLayoutObject(const ComputedStyle& style)
 {
     switch (style.appearance()) {
-    case ContinuousCapacityLevelIndicatorPart:
-        UseCounter::count(document(), UseCounter::MeterElementWithContinuousCapacityAppearance);
-        break;
-    case DiscreteCapacityLevelIndicatorPart:
-        UseCounter::count(document(), UseCounter::MeterElementWithDiscreteCapacityAppearance);
-        break;
     case MeterPart:
         UseCounter::count(document(), UseCounter::MeterElementWithMeterAppearance);
         break;
     case NoControlPart:
         UseCounter::count(document(), UseCounter::MeterElementWithNoneAppearance);
         break;
-    case RatingLevelIndicatorPart:
-        UseCounter::count(document(), UseCounter::MeterElementWithRatingAppearance);
-        break;
-    case RelevancyLevelIndicatorPart:
-        UseCounter::count(document(), UseCounter::MeterElementWithRelevancyAppearance);
-        break;
     default:
         break;
     }
-    if (openShadowRoot() || !LayoutTheme::theme().supportsMeter(style.appearance()))
-        return LayoutObject::createObject(this, style);
-    return new LayoutMeter(this);
+    return LayoutObject::createObject(this, style);
 }
 
 void HTMLMeterElement::parseAttribute(const QualifiedName& name, const AtomicString& oldValue, const AtomicString& value)
 {
     if (name == valueAttr || name == minAttr || name == maxAttr || name == lowAttr || name == highAttr || name == optimumAttr)
         didElementStateChange();
     else
         LabelableElement::parseAttribute(name, oldValue, value);
 }
 
@@ skipping 100 matching lines @@
     double max = this->max();
     double value = this->value();
 
     if (max <= min)
         return 0;
     return (value - min) / (max - min);
 }
 
 void HTMLMeterElement::didElementStateChange()
 {
-    m_value->setWidthPercentage(valueRatio()*100);
-    m_value->updatePseudo();
-    if (LayoutMeter* layoutMeter = this->layoutMeter())
-        layoutMeter->updateFromElement();
-}
-
-LayoutMeter* HTMLMeterElement::layoutMeter() const
-{
-    if (layoutObject() && layoutObject()->isMeter())
-        return toLayoutMeter(layoutObject());
-
-    LayoutObject* layoutObject = userAgentShadowRoot()->firstChild()->layoutObject();
-    return toLayoutMeter(layoutObject);
+    updateValueAppearance(valueRatio() * 100);
 }
 
 void HTMLMeterElement::didAddUserAgentShadowRoot(ShadowRoot& root)
 {
     ASSERT(!m_value);
 
-    RefPtrWillBeRawPtr<MeterInnerElement> inner = MeterInnerElement::create(document());
+    RefPtrWillBeRawPtr<HTMLDivElement> inner = HTMLDivElement::create(document());
+    inner->setShadowPseudoId(AtomicString("-webkit-meter-inner-element", AtomicString::ConstructFromLiteral));
     root.appendChild(inner);
 
-    RefPtrWillBeRawPtr<MeterBarElement> bar = MeterBarElement::create(document());
-    m_value = MeterValueElement::create(document());
-    m_value->setWidthPercentage(0);
-    m_value->updatePseudo();
+    RefPtrWillBeRawPtr<HTMLDivElement> bar = HTMLDivElement::create(document());
+    bar->setShadowPseudoId(AtomicString("-webkit-meter-bar", AtomicString::ConstructFromLiteral));
+
+    m_value = HTMLDivElement::create(document());
+    updateValueAppearance(0);
     bar->appendChild(m_value);
 
     inner->appendChild(bar);
 }
 
 void HTMLMeterElement::willAddFirstAuthorShadowRoot()
 {
     ASSERT(RuntimeEnabledFeatures::authorShadowDOMForAnyElementEnabled());
     lazyReattachIfAttached();
 }
 
+void HTMLMeterElement::updateValueAppearance(double percentage)
+{
+    DEFINE_STATIC_LOCAL(AtomicString, optimumPseudoId, ("-webkit-meter-optimum-value", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(AtomicString, suboptimumPseudoId, ("-webkit-meter-suboptimum-value", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(AtomicString, evenLessGoodPseudoId, ("-webkit-meter-even-less-good-value", AtomicString::ConstructFromLiteral));
+
+    m_value->setInlineStyleProperty(CSSPropertyWidth, percentage, CSSPrimitiveValue::UnitType::Percentage);
+    switch (gaugeRegion()) {
+    case GaugeRegionOptimum:
+        m_value->setShadowPseudoId(optimumPseudoId);
+        break;
+    case GaugeRegionSuboptimal:
+        m_value->setShadowPseudoId(suboptimumPseudoId);
+        break;
+    case GaugeRegionEvenLessGood:
+        m_value->setShadowPseudoId(evenLessGoodPseudoId);
+        break;
+    }
+}
+
 DEFINE_TRACE(HTMLMeterElement)
 {
     visitor->trace(m_value);
     LabelableElement::trace(visitor);
 }
 
 } // namespace blink