Introduce HTMLDataListOptionsCollection subclass for HTMLCollection

Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
@@ skipping 39 matching lines @@
 #include "core/events/ScopedEventQueue.h"
 #include "core/events/TouchEvent.h"
 #include "core/fileapi/FileList.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLDataListElement.h"
+#include "core/html/HTMLDataListOptionsCollection.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLImageLoader.h"
 #include "core/html/HTMLOptionElement.h"
 #include "core/html/forms/ColorInputType.h"
 #include "core/html/forms/FileInputType.h"
 #include "core/html/forms/FormController.h"
 #include "core/html/forms/InputType.h"
 #include "core/html/forms/SearchInputType.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/html/shadow/ShadowElementNames.h"
@@ skipping 1442 matching lines @@
         return 0;
 
     return toHTMLDataListElement(element);
 }
 
 bool HTMLInputElement::hasValidDataListOptions() const
 {
     HTMLDataListElement* dataList = this->dataList();
     if (!dataList)
         return false;
-    RefPtrWillBeRawPtr<HTMLCollection> options = dataList->options();
-    for (unsigned i = 0; HTMLOptionElement* option = toHTMLOptionElement(options->item(i)); ++i) {
+    RefPtrWillBeRawPtr<HTMLDataListOptionsCollection> options = dataList->options();
+    for (unsigned i = 0; HTMLOptionElement* option = options->item(i); ++i) {
         if (isValidValue(option->value()))
             return true;
     }
     return false;
 }
 
 void HTMLInputElement::setListAttributeTargetObserver(PassOwnPtrWillBeRawPtr<ListAttributeTargetObserver> newObserver)
 {
     if (m_listAttributeTargetObserver)
         m_listAttributeTargetObserver->unregister();
@@ skipping 294 matching lines @@
     } else {
         parameters.step = 1.0;
         parameters.stepBase = 0;
     }
 
     parameters.anchorRectInRootView = document().view()->contentsToRootView(pixelSnappedBoundingBox());
     parameters.currentValue = value();
     parameters.doubleValue = m_inputType->valueAsDouble();
     parameters.isAnchorElementRTL = m_inputType->computedTextDirection() == RTL;
     if (HTMLDataListElement* dataList = this->dataList()) {
-        RefPtrWillBeRawPtr<HTMLCollection> options = dataList->options();
-        for (unsigned i = 0; HTMLOptionElement* option = toHTMLOptionElement(options->item(i)); ++i) {
+        RefPtrWillBeRawPtr<HTMLDataListOptionsCollection> options = dataList->options();
+        for (unsigned i = 0; HTMLOptionElement* option = options->item(i); ++i) {
             if (!isValidValue(option->value()))
                 continue;
             DateTimeSuggestion suggestion;
             suggestion.value = m_inputType->parseToNumber(option->value(), Decimal::nan()).toDouble();
             if (std::isnan(suggestion.value))
                 continue;
             suggestion.localizedValue = localizeValue(option->value());
             suggestion.label = option->value() == option->label() ? String() : option->label();
             parameters.suggestions.append(suggestion);
         }
@@ skipping 35 matching lines @@
 {
     return m_inputType->shouldDispatchFormControlChangeEvent(oldValue, newValue);
 }
 
 void HTMLInputElement::didNotifySubtreeInsertionsToDocument()
 {
     listAttributeTargetChanged();
 }
 
 } // namespace