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 DateTimeSymbolicFieldElement_h
27#define DateTimeSymbolicFieldElement_h
28
29#if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
30#include "core/html/forms/TypeAhead.h"
31#include "core/html/shadow/DateTimeFieldElement.h"
32
33namespace blink {
34
35// DateTimeSymbolicFieldElement represents non-numeric field of data time
36// format, such as: AM/PM, and month.
37class DateTimeSymbolicFieldElement : public DateTimeFieldElement, public TypeAheadDataSource {
38    WTF_MAKE_NONCOPYABLE(DateTimeSymbolicFieldElement);
39
40protected:
41    DateTimeSymbolicFieldElement(Document&, FieldOwner&, const Vector<String>&, int minimum, int maximum);
42    size_t symbolsSize() const { return m_symbols.size(); }
43    virtual bool hasValue() const OVERRIDE FINAL;
44    void initialize(const AtomicString& pseudo, const String& axHelpText);
45    virtual void setEmptyValue(EventBehavior = DispatchNoEvent) OVERRIDE FINAL;
46    virtual void setValueAsInteger(int, EventBehavior = DispatchNoEvent) OVERRIDE FINAL;
47    virtual int valueAsInteger() const OVERRIDE FINAL;
48
49private:
50    static const int invalidIndex = -1;
51
52    String visibleEmptyValue() const;
53    bool indexIsInRange(int index) const { return index >= m_minimumIndex && index <= m_maximumIndex; }
54
55    // DateTimeFieldElement functions.
56    virtual void handleKeyboardEvent(KeyboardEvent*) OVERRIDE FINAL;
57    virtual float maximumWidth(const Font&) OVERRIDE;
58    virtual void stepDown() OVERRIDE FINAL;
59    virtual void stepUp() OVERRIDE FINAL;
60    virtual String value() const OVERRIDE FINAL;
61    virtual int valueForARIAValueNow() const OVERRIDE FINAL;
62    virtual String visibleValue() const OVERRIDE FINAL;
63
64    // TypeAheadDataSource functions.
65    virtual int indexOfSelectedOption() const OVERRIDE;
66    virtual int optionCount() const OVERRIDE;
67    virtual String optionAtIndex(int index) const OVERRIDE;
68
69    const Vector<String> m_symbols;
70
71    // We use AtomicString to share visible empty value among multiple
72    // DateTimeEditElements in the page.
73    const AtomicString m_visibleEmptyValue;
74    int m_selectedIndex;
75    TypeAhead m_typeAhead;
76    const int m_minimumIndex;
77    const int m_maximumIndex;
78};
79
80} // namespace blink
81
82#endif
83#endif
84