| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * Copyright (C) 2011, 2016 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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 "NumberInputType.h" |
| |
| #include "HTMLInputElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLParserIdioms.h" |
| #include "InputTypeNames.h" |
| #include "KeyboardEvent.h" |
| #include "LocalizedStrings.h" |
| #include "PlatformLocale.h" |
| #include "RenderTextControl.h" |
| #include <limits> |
| #include <wtf/ASCIICType.h> |
| #include <wtf/MathExtras.h> |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| static const int numberDefaultStep = 1; |
| static const int numberDefaultStepBase = 0; |
| static const int numberStepScaleFactor = 1; |
| |
| struct RealNumberRenderSize { |
| unsigned sizeBeforeDecimalPoint; |
| unsigned sizeAfteDecimalPoint; |
| |
| RealNumberRenderSize max(const RealNumberRenderSize& other) const |
| { |
| return { |
| std::max(sizeBeforeDecimalPoint, other.sizeBeforeDecimalPoint), |
| std::max(sizeAfteDecimalPoint, other.sizeAfteDecimalPoint) |
| }; |
| } |
| }; |
| |
| static RealNumberRenderSize calculateRenderSize(const Decimal& value) |
| { |
| ASSERT(value.isFinite()); |
| const unsigned sizeOfDigits = String::number(value.value().coefficient()).length(); |
| const unsigned sizeOfSign = value.isNegative() ? 1 : 0; |
| const int exponent = value.exponent(); |
| if (exponent >= 0) |
| return { sizeOfSign + sizeOfDigits, 0 }; |
| |
| const int sizeBeforeDecimalPoint = exponent + sizeOfDigits; |
| if (sizeBeforeDecimalPoint > 0) { |
| // In case of "123.456" |
| return { sizeOfSign + sizeBeforeDecimalPoint, sizeOfDigits - sizeBeforeDecimalPoint }; |
| } |
| |
| // In case of "0.00012345" |
| const unsigned sizeOfZero = 1; |
| const unsigned numberOfZeroAfterDecimalPoint = -sizeBeforeDecimalPoint; |
| return { sizeOfSign + sizeOfZero , numberOfZeroAfterDecimalPoint + sizeOfDigits }; |
| } |
| |
| const AtomicString& NumberInputType::formControlType() const |
| { |
| return InputTypeNames::number(); |
| } |
| |
| void NumberInputType::setValue(const String& sanitizedValue, bool valueChanged, TextFieldEventBehavior eventBehavior) |
| { |
| if (!valueChanged && sanitizedValue.isEmpty() && !element().innerTextValue().isEmpty()) |
| updateInnerTextValue(); |
| TextFieldInputType::setValue(sanitizedValue, valueChanged, eventBehavior); |
| } |
| |
| double NumberInputType::valueAsDouble() const |
| { |
| return parseToDoubleForNumberType(element().value()); |
| } |
| |
| ExceptionOr<void> NumberInputType::setValueAsDouble(double newValue, TextFieldEventBehavior eventBehavior) const |
| { |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const double floatMax = std::numeric_limits<float>::max(); |
| if (newValue < -floatMax || newValue > floatMax) |
| return Exception { InvalidStateError }; |
| element().setValue(serializeForNumberType(newValue), eventBehavior); |
| return { }; |
| } |
| |
| ExceptionOr<void> NumberInputType::setValueAsDecimal(const Decimal& newValue, TextFieldEventBehavior eventBehavior) const |
| { |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const Decimal floatMax = Decimal::fromDouble(std::numeric_limits<float>::max()); |
| if (newValue < -floatMax || newValue > floatMax) |
| return Exception { InvalidStateError }; |
| element().setValue(serializeForNumberType(newValue), eventBehavior); |
| return { }; |
| } |
| |
| bool NumberInputType::typeMismatchFor(const String& value) const |
| { |
| return !value.isEmpty() && !std::isfinite(parseToDoubleForNumberType(value)); |
| } |
| |
| bool NumberInputType::typeMismatch() const |
| { |
| ASSERT(!typeMismatchFor(element().value())); |
| return false; |
| } |
| |
| StepRange NumberInputType::createStepRange(AnyStepHandling anyStepHandling) const |
| { |
| static NeverDestroyed<const StepRange::StepDescription> stepDescription(numberDefaultStep, numberDefaultStepBase, numberStepScaleFactor); |
| const Decimal stepBase = parseToDecimalForNumberType(element().attributeWithoutSynchronization(minAttr), numberDefaultStepBase); |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const Decimal floatMax = Decimal::fromDouble(std::numeric_limits<float>::max()); |
| const Element& element = this->element(); |
| |
| RangeLimitations rangeLimitations = RangeLimitations::Invalid; |
| auto extractBound = [&] (const QualifiedName& attributeName, const Decimal& defaultValue) -> Decimal { |
| const AtomicString& attributeValue = element.attributeWithoutSynchronization(attributeName); |
| Decimal valueFromAttribute = parseToNumberOrNaN(attributeValue); |
| if (valueFromAttribute.isFinite()) { |
| rangeLimitations = RangeLimitations::Valid; |
| return valueFromAttribute; |
| } |
| return defaultValue; |
| }; |
| Decimal minimum = extractBound(minAttr, -floatMax); |
| Decimal maximum = extractBound(maxAttr, floatMax); |
| |
| const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element.attributeWithoutSynchronization(stepAttr)); |
| return StepRange(stepBase, rangeLimitations, minimum, maximum, step, stepDescription); |
| } |
| |
| bool NumberInputType::sizeShouldIncludeDecoration(int defaultSize, int& preferredSize) const |
| { |
| preferredSize = defaultSize; |
| |
| auto& stepString = element().attributeWithoutSynchronization(stepAttr); |
| if (equalLettersIgnoringASCIICase(stepString, "any")) |
| return false; |
| |
| const Decimal minimum = parseToDecimalForNumberType(element().attributeWithoutSynchronization(minAttr)); |
| if (!minimum.isFinite()) |
| return false; |
| |
| const Decimal maximum = parseToDecimalForNumberType(element().attributeWithoutSynchronization(maxAttr)); |
| if (!maximum.isFinite()) |
| return false; |
| |
| const Decimal step = parseToDecimalForNumberType(stepString, 1); |
| ASSERT(step.isFinite()); |
| |
| RealNumberRenderSize size = calculateRenderSize(minimum).max(calculateRenderSize(maximum).max(calculateRenderSize(step))); |
| |
| preferredSize = size.sizeBeforeDecimalPoint + size.sizeAfteDecimalPoint + (size.sizeAfteDecimalPoint ? 1 : 0); |
| |
| return true; |
| } |
| |
| float NumberInputType::decorationWidth() const |
| { |
| float width = 0; |
| RefPtr<HTMLElement> spinButton = element().innerSpinButtonElement(); |
| if (RenderBox* spinRenderer = spinButton ? spinButton->renderBox() : 0) { |
| width += spinRenderer->borderAndPaddingLogicalWidth(); |
| // Since the width of spinRenderer is not calculated yet, spinRenderer->logicalWidth() returns 0. |
| // So computedStyle()->logicalWidth() is used instead. |
| width += spinButton->computedStyle()->logicalWidth().value(); |
| } |
| return width; |
| } |
| |
| bool NumberInputType::isSteppable() const |
| { |
| return true; |
| } |
| |
| void NumberInputType::handleKeydownEvent(KeyboardEvent& event) |
| { |
| handleKeydownEventForSpinButton(event); |
| if (!event.defaultHandled()) |
| TextFieldInputType::handleKeydownEvent(event); |
| } |
| |
| Decimal NumberInputType::parseToNumber(const String& src, const Decimal& defaultValue) const |
| { |
| return parseToDecimalForNumberType(src, defaultValue); |
| } |
| |
| String NumberInputType::serialize(const Decimal& value) const |
| { |
| if (!value.isFinite()) |
| return String(); |
| return serializeForNumberType(value); |
| } |
| |
| static bool isE(UChar ch) |
| { |
| return ch == 'e' || ch == 'E'; |
| } |
| |
| String NumberInputType::localizeValue(const String& proposedValue) const |
| { |
| if (proposedValue.isEmpty()) |
| return proposedValue; |
| // We don't localize scientific notations. |
| if (proposedValue.find(isE) != notFound) |
| return proposedValue; |
| return element().locale().convertToLocalizedNumber(proposedValue); |
| } |
| |
| String NumberInputType::visibleValue() const |
| { |
| return localizeValue(element().value()); |
| } |
| |
| String NumberInputType::convertFromVisibleValue(const String& visibleValue) const |
| { |
| if (visibleValue.isEmpty()) |
| return visibleValue; |
| // We don't localize scientific notations. |
| if (visibleValue.find(isE) != notFound) |
| return visibleValue; |
| return element().locale().convertFromLocalizedNumber(visibleValue); |
| } |
| |
| String NumberInputType::sanitizeValue(const String& proposedValue) const |
| { |
| if (proposedValue.isEmpty()) |
| return proposedValue; |
| return std::isfinite(parseToDoubleForNumberType(proposedValue)) ? proposedValue : emptyString(); |
| } |
| |
| bool NumberInputType::hasBadInput() const |
| { |
| String standardValue = convertFromVisibleValue(element().innerTextValue()); |
| return !standardValue.isEmpty() && !std::isfinite(parseToDoubleForNumberType(standardValue)); |
| } |
| |
| String NumberInputType::badInputText() const |
| { |
| return validationMessageBadInputForNumberText(); |
| } |
| |
| bool NumberInputType::supportsPlaceholder() const |
| { |
| return true; |
| } |
| |
| bool NumberInputType::isNumberField() const |
| { |
| return true; |
| } |
| |
| void NumberInputType::minOrMaxAttributeChanged() |
| { |
| InputType::minOrMaxAttributeChanged(); |
| HTMLInputElement& element = this->element(); |
| element.invalidateStyleForSubtree(); |
| if (RenderObject* renderer = element.renderer()) |
| renderer->setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| void NumberInputType::stepAttributeChanged() |
| { |
| InputType::stepAttributeChanged(); |
| |
| if (element().renderer()) |
| element().renderer()->setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| } // namespace WebCore |