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33 #include "core/html/forms/NumberInputType.h"
35 #include "HTMLNames.h"
36 #include "InputTypeNames.h"
37 #include "bindings/v8/ExceptionState.h"
38 #include "core/dom/ExceptionCode.h"
39 #include "core/events/KeyboardEvent.h"
40 #include "core/html/HTMLInputElement.h"
41 #include "core/html/parser/HTMLParserIdioms.h"
42 #include "core/rendering/RenderTextControl.h"
43 #include "platform/text/PlatformLocale.h"
44 #include "wtf/MathExtras.h"
45 #include "wtf/PassOwnPtr.h"
50 using blink::WebLocalizedString;
51 using namespace HTMLNames;
54 static const int numberDefaultStep = 1;
55 static const int numberDefaultStepBase = 0;
56 static const int numberStepScaleFactor = 1;
58 struct RealNumberRenderSize {
59 unsigned sizeBeforeDecimalPoint;
60 unsigned sizeAfteDecimalPoint;
62 RealNumberRenderSize(unsigned before, unsigned after)
63 : sizeBeforeDecimalPoint(before)
64 , sizeAfteDecimalPoint(after)
68 RealNumberRenderSize max(const RealNumberRenderSize& other) const
70 return RealNumberRenderSize(
71 std::max(sizeBeforeDecimalPoint, other.sizeBeforeDecimalPoint),
72 std::max(sizeAfteDecimalPoint, other.sizeAfteDecimalPoint));
76 static RealNumberRenderSize calculateRenderSize(const Decimal& value)
78 ASSERT(value.isFinite());
79 const unsigned sizeOfDigits = String::number(value.value().coefficient()).length();
80 const unsigned sizeOfSign = value.isNegative() ? 1 : 0;
81 const int exponent = value.exponent();
83 return RealNumberRenderSize(sizeOfSign + sizeOfDigits, 0);
85 const int sizeBeforeDecimalPoint = exponent + sizeOfDigits;
86 if (sizeBeforeDecimalPoint > 0) {
87 // In case of "123.456"
88 return RealNumberRenderSize(sizeOfSign + sizeBeforeDecimalPoint, sizeOfDigits - sizeBeforeDecimalPoint);
91 // In case of "0.00012345"
92 const unsigned sizeOfZero = 1;
93 const unsigned numberOfZeroAfterDecimalPoint = -sizeBeforeDecimalPoint;
94 return RealNumberRenderSize(sizeOfSign + sizeOfZero , numberOfZeroAfterDecimalPoint + sizeOfDigits);
97 PassRefPtrWillBeRawPtr<InputType> NumberInputType::create(HTMLInputElement& element)
99 return adoptRefWillBeNoop(new NumberInputType(element));
102 void NumberInputType::countUsage()
104 countUsageIfVisible(UseCounter::InputTypeNumber);
107 const AtomicString& NumberInputType::formControlType() const
109 return InputTypeNames::number;
112 void NumberInputType::setValue(const String& sanitizedValue, bool valueChanged, TextFieldEventBehavior eventBehavior)
114 if (!valueChanged && sanitizedValue.isEmpty() && !element().innerTextValue().isEmpty())
115 element().updateView();
116 TextFieldInputType::setValue(sanitizedValue, valueChanged, eventBehavior);
119 double NumberInputType::valueAsDouble() const
121 return parseToDoubleForNumberType(element().value());
124 void NumberInputType::setValueAsDouble(double newValue, TextFieldEventBehavior eventBehavior, ExceptionState& exceptionState) const
126 element().setValue(serializeForNumberType(newValue), eventBehavior);
129 void NumberInputType::setValueAsDecimal(const Decimal& newValue, TextFieldEventBehavior eventBehavior, ExceptionState& exceptionState) const
131 element().setValue(serializeForNumberType(newValue), eventBehavior);
134 bool NumberInputType::typeMismatchFor(const String& value) const
136 return !value.isEmpty() && !std::isfinite(parseToDoubleForNumberType(value));
139 bool NumberInputType::typeMismatch() const
141 ASSERT(!typeMismatchFor(element().value()));
145 StepRange NumberInputType::createStepRange(AnyStepHandling anyStepHandling) const
147 DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (numberDefaultStep, numberDefaultStepBase, numberStepScaleFactor));
148 const Decimal doubleMax = Decimal::fromDouble(numeric_limits<double>::max());
149 return InputType::createStepRange(anyStepHandling, numberDefaultStepBase, -doubleMax, doubleMax, stepDescription);
152 bool NumberInputType::sizeShouldIncludeDecoration(int defaultSize, int& preferredSize) const
154 preferredSize = defaultSize;
156 const String stepString = element().fastGetAttribute(stepAttr);
157 if (equalIgnoringCase(stepString, "any"))
160 const Decimal minimum = parseToDecimalForNumberType(element().fastGetAttribute(minAttr));
161 if (!minimum.isFinite())
164 const Decimal maximum = parseToDecimalForNumberType(element().fastGetAttribute(maxAttr));
165 if (!maximum.isFinite())
168 const Decimal step = parseToDecimalForNumberType(stepString, 1);
169 ASSERT(step.isFinite());
171 RealNumberRenderSize size = calculateRenderSize(minimum).max(calculateRenderSize(maximum).max(calculateRenderSize(step)));
173 preferredSize = size.sizeBeforeDecimalPoint + size.sizeAfteDecimalPoint + (size.sizeAfteDecimalPoint ? 1 : 0);
178 bool NumberInputType::isSteppable() const
183 void NumberInputType::handleKeydownEvent(KeyboardEvent* event)
185 handleKeydownEventForSpinButton(event);
186 if (!event->defaultHandled())
187 TextFieldInputType::handleKeydownEvent(event);
190 Decimal NumberInputType::parseToNumber(const String& src, const Decimal& defaultValue) const
192 return parseToDecimalForNumberType(src, defaultValue);
195 String NumberInputType::serialize(const Decimal& value) const
197 if (!value.isFinite())
199 return serializeForNumberType(value);
202 static bool isE(UChar ch)
204 return ch == 'e' || ch == 'E';
207 String NumberInputType::localizeValue(const String& proposedValue) const
209 if (proposedValue.isEmpty())
210 return proposedValue;
211 // We don't localize scientific notations.
212 if (proposedValue.find(isE) != kNotFound)
213 return proposedValue;
214 return element().locale().convertToLocalizedNumber(proposedValue);
217 String NumberInputType::visibleValue() const
219 return localizeValue(element().value());
222 String NumberInputType::convertFromVisibleValue(const String& visibleValue) const
224 if (visibleValue.isEmpty())
226 // We don't localize scientific notations.
227 if (visibleValue.find(isE) != kNotFound)
229 return element().locale().convertFromLocalizedNumber(visibleValue);
232 String NumberInputType::sanitizeValue(const String& proposedValue) const
234 if (proposedValue.isEmpty())
235 return proposedValue;
236 return std::isfinite(parseToDoubleForNumberType(proposedValue)) ? proposedValue : emptyString();
239 bool NumberInputType::hasBadInput() const
241 String standardValue = convertFromVisibleValue(element().innerTextValue());
242 return !standardValue.isEmpty() && !std::isfinite(parseToDoubleForNumberType(standardValue));
245 String NumberInputType::badInputText() const
247 return locale().queryString(WebLocalizedString::ValidationBadInputForNumber);
250 String NumberInputType::rangeOverflowText(const Decimal& maximum) const
252 return locale().queryString(WebLocalizedString::ValidationRangeOverflow, localizeValue(serialize(maximum)));
255 String NumberInputType::rangeUnderflowText(const Decimal& minimum) const
257 return locale().queryString(WebLocalizedString::ValidationRangeUnderflow, localizeValue(serialize(minimum)));
260 bool NumberInputType::shouldRespectSpeechAttribute()
265 bool NumberInputType::supportsPlaceholder() const
270 bool NumberInputType::isNumberField() const
275 void NumberInputType::minOrMaxAttributeChanged()
277 InputType::minOrMaxAttributeChanged();
279 if (element().renderer())
280 element().renderer()->setNeedsLayoutAndPrefWidthsRecalc();
283 void NumberInputType::stepAttributeChanged()
285 InputType::stepAttributeChanged();
287 if (element().renderer())
288 element().renderer()->setNeedsLayoutAndPrefWidthsRecalc();
291 bool NumberInputType::supportsSelectionAPI() const
296 } // namespace WebCore