Chromium HTML5 新的 Input 类型week对应c++
一、Input 类型: week
week 类型允许你选择周和年。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>test</title>
</head>
<body>
<form action="demo-form.php">
选择周: <input type="week" name="year_week">
<input type="submit">
</form>
</body>
</html>
二、week c++定义:
third_party\blink\renderer\core\html\forms\week_input_type.h
third_party\blink\renderer\core\html\forms\week_input_type.cc
namespace blink {
class WeekInputType final : public BaseTemporalInputType {
public:
explicit WeekInputType(HTMLInputElement& element)
: BaseTemporalInputType(Type::kWeek, element) {}
private:
void CountUsage() override;
StepRange CreateStepRange(AnyStepHandling) const override;
bool ParseToDateComponentsInternal(const String&,
DateComponents*) const override;
bool SetMillisecondToDateComponents(double, DateComponents*) const override;
void WarnIfValueIsInvalid(const String&) const override;
// BaseTemporalInputType functions
String FormatDateTimeFieldsState(const DateTimeFieldsState&) const override;
void SetupLayoutParameters(DateTimeEditElement::LayoutParameters&,
const DateComponents&) const override;
bool IsValidFormat(bool has_year,
bool has_month,
bool has_week,
bool has_day,
bool has_ampm,
bool has_hour,
bool has_minute,
bool has_second) const override;
String AriaLabelForPickerIndicator() const override;
};
template <>
struct DowncastTraits<WeekInputType> {
static bool AllowFrom(const InputType& type) {
return type.IsWeekInputType();
}
};
} // namespace blink