Move filtering logic in GetDataListSuggestions() to Blink.

third_party/WebKit/Source/web/WebInputElement.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/html/HTMLDataListElement.h"
 #include "core/html/HTMLDataListOptionsCollection.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/shadow/ShadowElementNames.h"
 #include "core/html/shadow/TextControlInnerElements.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "public/platform/WebString.h"
 #include "public/web/WebElementCollection.h"
+#include "public/web/WebOptionElement.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 bool WebInputElement::isTextField() const
 {
     return constUnwrap<HTMLInputElement>()->isTextField();
 }
 
 bool WebInputElement::isText() const
@@ skipping 60 matching lines @@
 bool WebInputElement::isChecked() const
 {
     return constUnwrap<HTMLInputElement>()->checked();
 }
 
 bool WebInputElement::isMultiple() const
 {
     return constUnwrap<HTMLInputElement>()->multiple();
 }
 
-WebElementCollection WebInputElement::dataListOptions() const
+WebVector<WebOptionElement> WebInputElement::filteredDataListOptions() const
 {
-    if (HTMLDataListElement* dataList = toHTMLDataListElement(constUnwrap<HTMLInputElement>()->list()))
-        return WebElementCollection(dataList->options());
-    return WebElementCollection();
+    const HTMLInputElement* input = constUnwrap<HTMLInputElement>();
+    Vector<WebOptionElement> filtered;
+    HTMLDataListElement* dataList = input->dataList();
+    if (!dataList)
+        return filtered;
+
+    String prefix = input->innerEditorValue();
+    if (input->multiple() && input->type() == InputTypeNames::email) {
+        Vector<String> emails;
+        prefix.split(',', true, emails);
+        if (!emails.isEmpty())
+            prefix = emails.last().stripWhiteSpace();
+    }
+
+    HTMLDataListOptionsCollection* options = dataList->options();
+    filtered.reserveCapacity(options->length());
+    prefix = prefix.lower();
+    for (unsigned i = 0; i < options->length(); ++i) {
+        HTMLOptionElement* option = options->item(i);
+        DCHECK(option);
+        if (!option->value().lower().startsWith(prefix) || !input->isValidValue(option->value()))
+            continue;
+        filtered.append(WebOptionElement(option));
+    }
+    return filtered;
 }
 
 WebString WebInputElement::localizeValue(const WebString& proposedValue) const
 {
     return constUnwrap<HTMLInputElement>()->localizeValue(proposedValue);
 }
 
 int WebInputElement::defaultMaxLength()
 {
     return HTMLInputElement::maximumLength;
@@ skipping 23 matching lines @@
 }
 
 WebInputElement* toWebInputElement(WebElement* webElement)
 {
     if (!isHTMLInputElement(*webElement->unwrap<Element>()))
         return 0;
 
     return static_cast<WebInputElement*>(webElement);
 }
 } // namespace blink