| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * Copyright (C) 2011 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 "core/html/NumberInputType.h" |
| |
| #include <limits> |
| #include "HTMLNames.h" |
| #include "bindings/v8/ExceptionState.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/dom/KeyboardEvent.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/InputTypeNames.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/platform/LocalizedStrings.h" |
| #include "core/platform/text/PlatformLocale.h" |
| #include "core/rendering/RenderTextControl.h" |
| #include "wtf/MathExtras.h" |
| #include "wtf/PassOwnPtr.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| using namespace std; |
| |
| static const int numberDefaultStep = 1; |
| static const int numberDefaultStepBase = 0; |
| static const int numberStepScaleFactor = 1; |
| |
| struct RealNumberRenderSize |
| { |
| unsigned sizeBeforeDecimalPoint; |
| unsigned sizeAfteDecimalPoint; |
| |
| RealNumberRenderSize(unsigned before, unsigned after) |
| : sizeBeforeDecimalPoint(before) |
| , sizeAfteDecimalPoint(after) |
| { |
| } |
| |
| RealNumberRenderSize max(const RealNumberRenderSize& other) const |
| { |
| return RealNumberRenderSize( |
| 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 RealNumberRenderSize(sizeOfSign + sizeOfDigits, 0); |
| |
| const int sizeBeforeDecimalPoint = exponent + sizeOfDigits; |
| if (sizeBeforeDecimalPoint > 0) { |
| // In case of "123.456" |
| return RealNumberRenderSize(sizeOfSign + sizeBeforeDecimalPoint, sizeOfDigits - sizeBeforeDecimalPoint); |
| } |
| |
| // In case of "0.00012345" |
| const unsigned sizeOfZero = 1; |
| const unsigned numberOfZeroAfterDecimalPoint = -sizeBeforeDecimalPoint; |
| return RealNumberRenderSize(sizeOfSign + sizeOfZero , numberOfZeroAfterDecimalPoint + sizeOfDigits); |
| } |
| |
| PassOwnPtr<InputType> NumberInputType::create(HTMLInputElement* element) |
| { |
| return adoptPtr(new NumberInputType(element)); |
| } |
| |
| void NumberInputType::attach() |
| { |
| TextFieldInputType::attach(); |
| observeFeatureIfVisible(UseCounter::InputTypeNumber); |
| } |
| |
| 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()); |
| } |
| |
| void NumberInputType::setValueAsDouble(double newValue, TextFieldEventBehavior eventBehavior, ExceptionState& es) const |
| { |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const double floatMax = numeric_limits<float>::max(); |
| if (newValue < -floatMax) { |
| es.throwDOMException(InvalidStateError); |
| return; |
| } |
| if (newValue > floatMax) { |
| es.throwDOMException(InvalidStateError); |
| return; |
| } |
| element()->setValue(serializeForNumberType(newValue), eventBehavior); |
| } |
| |
| void NumberInputType::setValueAsDecimal(const Decimal& newValue, TextFieldEventBehavior eventBehavior, ExceptionState& es) const |
| { |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const Decimal floatMax = Decimal::fromDouble(numeric_limits<float>::max()); |
| if (newValue < -floatMax) { |
| es.throwDOMException(InvalidStateError); |
| return; |
| } |
| if (newValue > floatMax) { |
| es.throwDOMException(InvalidStateError); |
| return; |
| } |
| element()->setValue(serializeForNumberType(newValue), eventBehavior); |
| } |
| |
| 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 |
| { |
| DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (numberDefaultStep, numberDefaultStepBase, numberStepScaleFactor)); |
| const Decimal stepBase = parseToDecimalForNumberType(element()->fastGetAttribute(minAttr), numberDefaultStepBase); |
| // FIXME: We should use numeric_limits<double>::max for number input type. |
| const Decimal floatMax = Decimal::fromDouble(numeric_limits<float>::max()); |
| const Decimal minimum = parseToNumber(element()->fastGetAttribute(minAttr), -floatMax); |
| const Decimal maximum = parseToNumber(element()->fastGetAttribute(maxAttr), floatMax); |
| const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element()->fastGetAttribute(stepAttr)); |
| return StepRange(stepBase, minimum, maximum, step, stepDescription); |
| } |
| |
| bool NumberInputType::sizeShouldIncludeDecoration(int defaultSize, int& preferredSize) const |
| { |
| preferredSize = defaultSize; |
| |
| const String stepString = element()->fastGetAttribute(stepAttr); |
| if (equalIgnoringCase(stepString, "any")) |
| return false; |
| |
| const Decimal minimum = parseToDecimalForNumberType(element()->fastGetAttribute(minAttr)); |
| if (!minimum.isFinite()) |
| return false; |
| |
| const Decimal maximum = parseToDecimalForNumberType(element()->fastGetAttribute(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; |
| } |
| |
| 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::shouldRespectSpeechAttribute() |
| { |
| return true; |
| } |
| |
| bool NumberInputType::supportsPlaceholder() const |
| { |
| return true; |
| } |
| |
| bool NumberInputType::isNumberField() const |
| { |
| return true; |
| } |
| |
| void NumberInputType::minOrMaxAttributeChanged() |
| { |
| InputType::minOrMaxAttributeChanged(); |
| |
| if (element()->renderer()) |
| element()->renderer()->setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| void NumberInputType::stepAttributeChanged() |
| { |
| InputType::stepAttributeChanged(); |
| |
| if (element()->renderer()) |
| element()->renderer()->setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| } // namespace WebCore |