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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 DateTimeNumericFieldElement_h
#define DateTimeNumericFieldElement_h
#include "core/html/shadow/DateTimeFieldElement.h"
#include "wtf/Allocator.h"
#include "wtf/text/StringBuilder.h"
#include "wtf/text/WTFString.h"
namespace blink {
// DateTimeNumericFieldElement represents numeric field of date time format,
// such as:
// - hour
// - minute
// - millisecond
// - second
// - year
class DateTimeNumericFieldElement : public DateTimeFieldElement {
WTF_MAKE_NONCOPYABLE(DateTimeNumericFieldElement);
public:
struct Step {
DISALLOW_NEW();
Step(int step = 1, int stepBase = 0) : step(step), stepBase(stepBase) {}
int step;
int stepBase;
};
struct Range {
DISALLOW_NEW();
Range(int minimum, int maximum) : minimum(minimum), maximum(maximum) {}
int clampValue(int) const;
bool isInRange(int) const;
bool isSingleton() const { return minimum == maximum; }
int minimum;
int maximum;
};
protected:
DateTimeNumericFieldElement(Document&,
FieldOwner&,
const Range&,
const Range& hardLimits,
const String& placeholder,
const Step& = Step());
int clampValue(int value) const { return m_range.clampValue(value); }
virtual int defaultValueForStepDown() const;
virtual int defaultValueForStepUp() const;
const Range& range() const { return m_range; }
// DateTimeFieldElement functions.
bool hasValue() const final;
void initialize(const AtomicString& pseudo, const String& axHelpText);
int maximum() const;
void setEmptyValue(EventBehavior = DispatchNoEvent) final;
void setValueAsInteger(int, EventBehavior = DispatchNoEvent) override;
int valueAsInteger() const final;
String visibleValue() const final;
private:
// DateTimeFieldElement functions.
void handleKeyboardEvent(KeyboardEvent*) final;
float maximumWidth(const ComputedStyle&) override;
void stepDown() final;
void stepUp() final;
String value() const final;
// Node functions.
void setFocused(bool) final;
String formatValue(int) const;
int roundUp(int) const;
int roundDown(int) const;
int typeAheadValue() const;
const String m_placeholder;
const Range m_range;
const Range m_hardLimits;
const Step m_step;
int m_value;
bool m_hasValue;
mutable StringBuilder m_typeAheadBuffer;
};
} // namespace blink
#endif
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