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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_FIELD_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_DATE_TIME_FIELD_ELEMENT_H_
#include "base/macros.h"
#include "third_party/blink/public/platform/web_focus_type.h"
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/core/html/html_span_element.h"
namespace blink {
class DateComponents;
class DateTimeFieldsState;
enum class DateTimeField {
kYear,
kMonth,
kWeek,
kDay,
kHour,
kMinute,
kSecond,
kMillisecond,
kAMPM,
};
// DateTimeFieldElement is base class of date time field element.
class DateTimeFieldElement : public HTMLSpanElement {
public:
enum EventBehavior {
kDispatchNoEvent,
kDispatchEvent,
};
// FieldOwner implementer must call removeEventHandler when
// it doesn't handle event, e.g. at destruction.
class FieldOwner : public GarbageCollectedMixin {
public:
virtual ~FieldOwner();
virtual void DidBlurFromField(WebFocusType) = 0;
virtual void DidFocusOnField(WebFocusType) = 0;
virtual void FieldValueChanged() = 0;
virtual bool FocusOnNextField(const DateTimeFieldElement&) = 0;
virtual bool FocusOnPreviousField(const DateTimeFieldElement&) = 0;
virtual bool IsFieldOwnerDisabled() const = 0;
virtual bool IsFieldOwnerReadOnly() const = 0;
virtual AtomicString LocaleIdentifier() const = 0;
virtual void FieldDidChangeValueByKeyboard() = 0;
};
void DefaultEventHandler(Event&) override;
virtual bool HasValue() const = 0;
bool IsDisabled() const;
virtual float MaximumWidth(const ComputedStyle&);
virtual String Placeholder() const = 0;
virtual void PopulateDateTimeFieldsState(DateTimeFieldsState&) = 0;
void RemoveEventHandler() { field_owner_ = nullptr; }
void SetDisabled();
virtual void SetEmptyValue(EventBehavior = kDispatchNoEvent) = 0;
virtual void SetValueAsDate(const DateComponents&) = 0;
virtual void SetValueAsDateTimeFieldsState(const DateTimeFieldsState&) = 0;
virtual void SetValueAsInteger(int, EventBehavior = kDispatchNoEvent) = 0;
virtual void StepDown() = 0;
virtual void StepUp() = 0;
virtual String Value() const = 0;
virtual String VisibleValue() const = 0;
void Trace(Visitor*) override;
DateTimeField Type() const;
static float ComputeTextWidth(const ComputedStyle&, const String&);
protected:
DateTimeFieldElement(Document&, FieldOwner&, DateTimeField);
void FocusOnNextField();
virtual void HandleKeyboardEvent(KeyboardEvent&) = 0;
void Initialize(const AtomicString& pseudo,
const String& ax_help_text,
int ax_minimum,
int ax_maximum);
Locale& LocaleForOwner() const;
AtomicString LocaleIdentifier() const;
void UpdateVisibleValue(EventBehavior);
virtual int ValueAsInteger() const = 0;
virtual int ValueForARIAValueNow() const;
// Node functions.
void SetFocused(bool, WebFocusType) override;
private:
void DefaultKeyboardEventHandler(KeyboardEvent&);
bool IsDateTimeFieldElement() const final;
bool IsFieldOwnerDisabled() const;
bool IsFieldOwnerReadOnly() const;
bool SupportsFocus() const final;
Member<FieldOwner> field_owner_;
DateTimeField type_;
DISALLOW_COPY_AND_ASSIGN(DateTimeFieldElement);
};
} // namespace blink
#endif
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