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Chromium HTML5 新的 Input 类型email对应c++

article 2024/10/28 9:16:43

一、Input 类型: email

email 类型用于应该包含 e-mail 地址的输入域。

<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>test</title> 
</head>
<body>

<form action="demo-form.php">
  E-mail: <input type="email" name="usremail">
  <input type="submit">
</form>

<p><b>注意:</b> Internet Explorer 9  及更早 IE 版本不支持 type="email" 。</p>

</body>
</html>

二、c++定义：

third_party\blink\renderer\core\html\forms\email_input_type.h

third_party\blink\renderer\core\html\forms\email_input_type.cc

namespace blink {

class EmailInputType final : public BaseTextInputType {
 public:
  explicit EmailInputType(HTMLInputElement&);

  // They are public for unit testing.
  CORE_EXPORT static String ConvertEmailAddressToASCII(const ScriptRegexp&,
                                                       const String&);
  CORE_EXPORT static bool IsValidEmailAddress(const ScriptRegexp&,
                                              const String&);
  CORE_EXPORT static ScriptRegexp* CreateEmailRegexp(v8::Isolate* isolate);

  static Vector<String> ParseMultipleValues(const String& value);

  bool TypeMismatchFor(const String&) const;

 private:
  void CountUsage() override;
  bool TypeMismatch() const override;
  String TypeMismatchText() const override;
  bool SupportsSelectionAPI() const override;
  String SanitizeValue(const String&) const override;
  String ConvertFromVisibleValue(const String&) const override;
  String VisibleValue() const override;
  void MultipleAttributeChanged() override;

  String ConvertEmailAddressToUnicode(const String&) const;
  String FindInvalidAddress(const String&) const;
};

template <>
struct DowncastTraits<EmailInputType> {
  static bool AllowFrom(const InputType& type) {
    return type.IsEmailInputType();
  }
};

}  // namespace blink

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