File: DateTimeNumericFieldElement.cpp

package info (click to toggle)
webkit2gtk 2.48.5-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 429,764 kB
  • sloc: cpp: 3,697,587; javascript: 194,444; ansic: 169,997; python: 46,499; asm: 19,295; ruby: 18,528; perl: 16,602; xml: 4,650; yacc: 2,360; sh: 2,098; java: 1,993; lex: 1,327; pascal: 366; makefile: 298
file content (199 lines) | stat: -rw-r--r-- 6,592 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 * Copyright (C) 2020 Apple 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.
 */

#include "config.h"
#include "DateTimeNumericFieldElement.h"

#include "EventNames.h"
#include "FontCascade.h"
#include "HTMLNames.h"
#include "KeyboardEvent.h"
#include "PlatformLocale.h"
#include "RenderBlock.h"
#include "RenderStyleSetters.h"
#include <wtf/TZoneMallocInlines.h>
#include <wtf/text/MakeString.h>
#include <wtf/text/StringToIntegerConversion.h>

namespace WebCore {

constexpr Seconds typeAheadTimeout { 1_s };

int DateTimeNumericFieldElement::Range::clampValue(int value) const
{
    return std::clamp(value, minimum, maximum);
}

bool DateTimeNumericFieldElement::Range::isInRange(int value) const
{
    return value >= minimum && value <= maximum;
}

WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(DateTimeNumericFieldElement);

DateTimeNumericFieldElement::DateTimeNumericFieldElement(Document& document, DateTimeFieldElementFieldOwner& fieldOwner, const Range& range, int placeholder)
    : DateTimeFieldElement(document, fieldOwner)
    , m_range(range)
    , m_placeholder(formatValue(placeholder))
    , m_placeholderValue(placeholder)
{
}

void DateTimeNumericFieldElement::adjustMinInlineSize(RenderStyle& style) const
{
    auto& font = style.fontCascade();

    unsigned length = 2;
    if (m_range.maximum > 999)
        length = 4;
    else if (m_range.maximum > 99)
        length = 3;

    auto& locale = localeForOwner();

    float inlineSize = 0;
    for (char c = '0'; c <= '9'; ++c) {
        auto numberString = locale.convertToLocalizedNumber(makeString(pad(c, length, makeString(c))));
        inlineSize = std::max(inlineSize, font.width(RenderBlock::constructTextRun(numberString, style)));
    }

    if (style.writingMode().isHorizontal())
        style.setMinWidth({ inlineSize, LengthType::Fixed });
    else
        style.setMinHeight({ inlineSize, LengthType::Fixed });
}

int DateTimeNumericFieldElement::maximum() const
{
    return m_range.maximum;
}

String DateTimeNumericFieldElement::formatValue(int value) const
{
    Locale& locale = localeForOwner();

    if (m_range.maximum > 999)
        return locale.convertToLocalizedNumber(makeString(pad('0', 4, value)));
    if (m_range.maximum > 99)
        return locale.convertToLocalizedNumber(makeString(pad('0', 3, value)));
    return locale.convertToLocalizedNumber(makeString(pad('0', 2, value)));
}

bool DateTimeNumericFieldElement::hasValue() const
{
    return m_hasValue;
}

void DateTimeNumericFieldElement::setEmptyValue(EventBehavior eventBehavior)
{
    m_value = 0;
    m_hasValue = false;
    m_typeAheadBuffer.clear();
    updateVisibleValue(eventBehavior);
    setARIAValueAttributesWithInteger(0);
}

void DateTimeNumericFieldElement::setValueAsInteger(int value, EventBehavior eventBehavior)
{
    m_value = m_range.clampValue(value);
    m_hasValue = true;
    updateVisibleValue(eventBehavior);
    setARIAValueAttributesWithInteger(value);
}

void DateTimeNumericFieldElement::setValueAsIntegerByStepping(int value)
{
    m_typeAheadBuffer.clear();
    setValueAsInteger(value, DispatchInputAndChangeEvents);
}

void DateTimeNumericFieldElement::setARIAValueAttributesWithInteger(int value)
{
    setAttributeWithoutSynchronization(HTMLNames::aria_valuenowAttr, AtomString::number(value));
    setAttributeWithoutSynchronization(HTMLNames::aria_valuetextAttr, AtomString::number(value));
}

void DateTimeNumericFieldElement::stepDown()
{
    int newValue = m_hasValue ? m_value - 1 : m_range.maximum;
    if (!m_range.isInRange(newValue))
        newValue = m_range.maximum;
    setValueAsIntegerByStepping(newValue);
}

void DateTimeNumericFieldElement::stepUp()
{
    int newValue = m_hasValue ? m_value + 1 : m_range.minimum;
    if (!m_range.isInRange(newValue))
        newValue = m_range.minimum;
    setValueAsIntegerByStepping(newValue);
}

String DateTimeNumericFieldElement::value() const
{
    return m_hasValue ? formatValue(m_value) : emptyString();
}

String DateTimeNumericFieldElement::placeholderValue() const
{
    return m_placeholder;
}

void DateTimeNumericFieldElement::handleKeyboardEvent(KeyboardEvent& keyboardEvent)
{
    if (keyboardEvent.type() != eventNames().keypressEvent)
        return;

    auto charCode = static_cast<UChar>(keyboardEvent.charCode());
    String number = localeForOwner().convertFromLocalizedNumber(span(charCode));
    int digit = number[0] - '0';
    if (digit < 0 || digit > 9)
        return;

    Seconds timeSinceLastDigitChar = keyboardEvent.timeStamp() - m_lastDigitCharTime;
    m_lastDigitCharTime = keyboardEvent.timeStamp();

    if (timeSinceLastDigitChar > typeAheadTimeout) {
        m_typeAheadBuffer.clear();
    } else if (auto length = m_typeAheadBuffer.length()) {
        unsigned maxLength = formatValue(m_range.maximum).length();
        if (length == maxLength)
            m_typeAheadBuffer.clear();
    }

    m_typeAheadBuffer.append(number);
    setValueAsInteger(parseIntegerAllowingTrailingJunk<int>(m_typeAheadBuffer).value_or(0), DispatchInputAndChangeEvents);

    keyboardEvent.setDefaultHandled();
}

void DateTimeNumericFieldElement::handleBlurEvent(Event& event)
{
    m_typeAheadBuffer.clear();
    DateTimeFieldElement::handleBlurEvent(event);
}

} // namespace WebCore