1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #ifndef DateTimeNumericFieldElement_h 27 #define DateTimeNumericFieldElement_h 28 29 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI) 30 #include "core/html/shadow/DateTimeFieldElement.h" 31 32 #include "wtf/text/StringBuilder.h" 33 #include "wtf/text/WTFString.h" 34 35 namespace blink { 36 37 // DateTimeNumericFieldElement represents numeric field of date time format, 38 // such as: 39 // - hour 40 // - minute 41 // - millisecond 42 // - second 43 // - year 44 class DateTimeNumericFieldElement : public DateTimeFieldElement { 45 WTF_MAKE_NONCOPYABLE(DateTimeNumericFieldElement); 46 47 public: 48 struct Step { stepStep49 Step(int step = 1, int stepBase = 0) : step(step), stepBase(stepBase) { } 50 int step; 51 int stepBase; 52 }; 53 54 struct Range { RangeRange55 Range(int minimum, int maximum) : minimum(minimum), maximum(maximum) { } 56 int clampValue(int) const; 57 bool isInRange(int) const; isSingletonRange58 bool isSingleton() const { return minimum == maximum; } 59 60 int minimum; 61 int maximum; 62 }; 63 64 protected: 65 DateTimeNumericFieldElement(Document&, FieldOwner&, const Range&, const Range& hardLimits, const String& placeholder, const Step& = Step()); 66 clampValue(int value)67 int clampValue(int value) const { return m_range.clampValue(value); } 68 virtual int defaultValueForStepDown() const; 69 virtual int defaultValueForStepUp() const; range()70 const Range& range() const { return m_range; } 71 72 // DateTimeFieldElement functions. 73 virtual bool hasValue() const OVERRIDE FINAL; 74 void initialize(const AtomicString& pseudo, const String& axHelpText); 75 int maximum() const; 76 virtual void setEmptyValue(EventBehavior = DispatchNoEvent) OVERRIDE FINAL; 77 virtual void setValueAsInteger(int, EventBehavior = DispatchNoEvent) OVERRIDE; 78 virtual int valueAsInteger() const OVERRIDE FINAL; 79 virtual String visibleValue() const OVERRIDE FINAL; 80 81 private: 82 // DateTimeFieldElement functions. 83 virtual void handleKeyboardEvent(KeyboardEvent*) OVERRIDE FINAL; 84 virtual float maximumWidth(const Font&) OVERRIDE; 85 virtual void stepDown() OVERRIDE FINAL; 86 virtual void stepUp() OVERRIDE FINAL; 87 virtual String value() const OVERRIDE FINAL; 88 89 // Node functions. 90 virtual void setFocus(bool) OVERRIDE FINAL; 91 92 String formatValue(int) const; 93 int roundUp(int) const; 94 int roundDown(int) const; 95 int typeAheadValue() const; 96 97 const String m_placeholder; 98 const Range m_range; 99 const Range m_hardLimits; 100 const Step m_step; 101 int m_value; 102 bool m_hasValue; 103 mutable StringBuilder m_typeAheadBuffer; 104 }; 105 106 } // namespace blink 107 108 #endif 109 #endif 110