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/*
* Copyright (C) 2012 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_DATE_TIME_EDIT_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_DATE_TIME_EDIT_ELEMENT_H_
#include "base/macros.h"
#include "third_party/blink/public/mojom/input/focus_type.mojom-blink-forward.h"
#include "third_party/blink/renderer/core/html/forms/date_time_field_element.h"
#include "third_party/blink/renderer/core/html/forms/step_range.h"
#include "third_party/blink/renderer/platform/text/date_components.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace blink {
class DateTimeFieldsState;
class Locale;
class StepRange;
enum class DateTimeField;
// DateTimeEditElement class contains numberic field and symbolc field for
// representing date and time, such as
// - Year, Month, Day Of Month
// - Hour, Minute, Second, Millisecond, AM/PM
class DateTimeEditElement final : public HTMLDivElement,
public DateTimeFieldElement::FieldOwner {
USING_GARBAGE_COLLECTED_MIXIN(DateTimeEditElement);
public:
// EditControlOwner implementer must call removeEditControlOwner when
// it doesn't handle event, e.g. at destruction.
class EditControlOwner : public GarbageCollectedMixin {
public:
virtual ~EditControlOwner();
virtual void DidBlurFromControl(mojom::blink::FocusType) = 0;
virtual void DidFocusOnControl(mojom::blink::FocusType) = 0;
virtual void EditControlValueChanged() = 0;
virtual String FormatDateTimeFieldsState(
const DateTimeFieldsState&) const = 0;
virtual bool IsEditControlOwnerDisabled() const = 0;
virtual bool IsEditControlOwnerReadOnly() const = 0;
virtual AtomicString LocaleIdentifier() const = 0;
virtual void EditControlDidChangeValueByKeyboard() = 0;
};
struct LayoutParameters {
STACK_ALLOCATED();
public:
String date_time_format;
String fallback_date_time_format;
Locale& locale;
const StepRange step_range;
DateComponents minimum;
DateComponents maximum;
String placeholder_for_day;
String placeholder_for_month;
String placeholder_for_year;
LayoutParameters(Locale& locale, const StepRange& step_range)
: locale(locale), step_range(step_range) {}
};
DateTimeEditElement(Document&, EditControlOwner&);
~DateTimeEditElement() override;
void Trace(Visitor*) override;
void AddField(DateTimeFieldElement*);
bool AnyEditableFieldsHaveValues() const;
void BlurByOwner();
void DefaultEventHandler(Event&) override;
void DisabledStateChanged();
Element* FieldsWrapperElement() const;
void FocusIfNoFocus();
// If oldFocusedNode is one of sub-fields, focus on it. Otherwise focus on
// the first sub-field.
void FocusByOwner(Element* old_focused_element = nullptr);
bool HasFocusedField();
void ReadOnlyStateChanged();
void RemoveEditControlOwner() { edit_control_owner_ = nullptr; }
void ResetFields();
void SetEmptyValue(const LayoutParameters&,
const DateComponents& date_for_read_only_field);
void SetValueAsDate(const LayoutParameters&, const DateComponents&);
void SetValueAsDateTimeFieldsState(const DateTimeFieldsState&);
void SetOnlyYearMonthDay(const DateComponents&);
void SetOnlyTime(const DateComponents&);
void StepDown();
void StepUp();
String Value() const;
DateTimeFieldsState ValueAsDateTimeFieldsState() const;
bool HasField(DateTimeField) const;
bool IsFirstFieldAMPM() const;
private:
static const wtf_size_t kInvalidFieldIndex = UINT_MAX;
// Datetime can be represent at most five fields, such as
// 1. year
// 2. month
// 3. day-of-month
// 4. hour
// 5. minute
// 6. second
// 7. millisecond
// 8. AM/PM
static const int kMaximumNumberOfFields = 8;
DateTimeFieldElement* FieldAt(wtf_size_t) const;
wtf_size_t FieldIndexOf(const DateTimeFieldElement&) const;
DateTimeFieldElement* FocusedField() const;
wtf_size_t FocusedFieldIndex() const;
bool FocusOnNextFocusableField(wtf_size_t start_index);
bool IsDisabled() const;
bool IsReadOnly() const;
void GetLayout(const LayoutParameters&, const DateComponents&);
void UpdateUIState();
// Element function.
scoped_refptr<ComputedStyle> CustomStyleForLayoutObject() override;
bool IsDateTimeEditElement() const override;
// DateTimeFieldElement::FieldOwner functions.
void DidBlurFromField(mojom::blink::FocusType) override;
void DidFocusOnField(mojom::blink::FocusType) override;
void FieldValueChanged() override;
bool FocusOnNextField(const DateTimeFieldElement&) override;
bool FocusOnPreviousField(const DateTimeFieldElement&) override;
bool IsFieldOwnerDisabled() const override;
bool IsFieldOwnerReadOnly() const override;
AtomicString LocaleIdentifier() const override;
void FieldDidChangeValueByKeyboard() override;
HeapVector<Member<DateTimeFieldElement>, kMaximumNumberOfFields> fields_;
Member<EditControlOwner> edit_control_owner_;
DISALLOW_COPY_AND_ASSIGN(DateTimeEditElement);
};
template <>
struct DowncastTraits<DateTimeEditElement> {
static bool AllowFrom(const Element& element) {
return element.IsDateTimeEditElement();
}
};
} // namespace blink
#endif
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