| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All |
| * rights reserved. |
| * (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
| * Copyright (C) 2007 Samuel Weinig (sam@webkit.org) |
| * Copyright (C) 2009, 2010, 2011, 2012 Google Inc. All rights reserved. |
| * Copyright (C) 2012 Samsung Electronics. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "core/html/forms/InputType.h" |
| |
| #include "bindings/core/v8/ExceptionMessages.h" |
| #include "bindings/core/v8/ExceptionState.h" |
| #include "core/InputTypeNames.h" |
| #include "core/dom/AXObjectCache.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/dom/NodeComputedStyle.h" |
| #include "core/events/KeyboardEvent.h" |
| #include "core/events/ScopedEventQueue.h" |
| #include "core/fileapi/FileList.h" |
| #include "core/frame/FrameHost.h" |
| #include "core/html/FormData.h" |
| #include "core/html/HTMLFormElement.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/HTMLShadowElement.h" |
| #include "core/html/forms/ButtonInputType.h" |
| #include "core/html/forms/CheckboxInputType.h" |
| #include "core/html/forms/ColorChooser.h" |
| #include "core/html/forms/ColorInputType.h" |
| #include "core/html/forms/DateInputType.h" |
| #include "core/html/forms/DateTimeLocalInputType.h" |
| #include "core/html/forms/EmailInputType.h" |
| #include "core/html/forms/FileInputType.h" |
| #include "core/html/forms/HiddenInputType.h" |
| #include "core/html/forms/ImageInputType.h" |
| #include "core/html/forms/MonthInputType.h" |
| #include "core/html/forms/NumberInputType.h" |
| #include "core/html/forms/PasswordInputType.h" |
| #include "core/html/forms/RadioInputType.h" |
| #include "core/html/forms/RangeInputType.h" |
| #include "core/html/forms/ResetInputType.h" |
| #include "core/html/forms/SearchInputType.h" |
| #include "core/html/forms/SubmitInputType.h" |
| #include "core/html/forms/TelephoneInputType.h" |
| #include "core/html/forms/TextInputType.h" |
| #include "core/html/forms/TimeInputType.h" |
| #include "core/html/forms/URLInputType.h" |
| #include "core/html/forms/WeekInputType.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/inspector/ConsoleMessage.h" |
| #include "core/layout/LayoutTheme.h" |
| #include "platform/RuntimeEnabledFeatures.h" |
| #include "platform/json/JSONValues.h" |
| #include "platform/text/PlatformLocale.h" |
| #include "platform/text/TextBreakIterator.h" |
| #include "wtf/PtrUtil.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| using blink::WebLocalizedString; |
| using namespace HTMLNames; |
| |
| using InputTypeFactoryFunction = InputType* (*)(HTMLInputElement&); |
| using InputTypeFactoryMap = |
| HashMap<AtomicString, InputTypeFactoryFunction, CaseFoldingHash>; |
| |
| static std::unique_ptr<InputTypeFactoryMap> createInputTypeFactoryMap() { |
| std::unique_ptr<InputTypeFactoryMap> map = |
| wrapUnique(new InputTypeFactoryMap); |
| map->add(InputTypeNames::button, ButtonInputType::create); |
| map->add(InputTypeNames::checkbox, CheckboxInputType::create); |
| map->add(InputTypeNames::color, ColorInputType::create); |
| map->add(InputTypeNames::date, DateInputType::create); |
| map->add(InputTypeNames::datetime_local, DateTimeLocalInputType::create); |
| map->add(InputTypeNames::email, EmailInputType::create); |
| map->add(InputTypeNames::file, FileInputType::create); |
| map->add(InputTypeNames::hidden, HiddenInputType::create); |
| map->add(InputTypeNames::image, ImageInputType::create); |
| map->add(InputTypeNames::month, MonthInputType::create); |
| map->add(InputTypeNames::number, NumberInputType::create); |
| map->add(InputTypeNames::password, PasswordInputType::create); |
| map->add(InputTypeNames::radio, RadioInputType::create); |
| map->add(InputTypeNames::range, RangeInputType::create); |
| map->add(InputTypeNames::reset, ResetInputType::create); |
| map->add(InputTypeNames::search, SearchInputType::create); |
| map->add(InputTypeNames::submit, SubmitInputType::create); |
| map->add(InputTypeNames::tel, TelephoneInputType::create); |
| map->add(InputTypeNames::time, TimeInputType::create); |
| map->add(InputTypeNames::url, URLInputType::create); |
| map->add(InputTypeNames::week, WeekInputType::create); |
| // No need to register "text" because it is the default type. |
| return map; |
| } |
| |
| static const InputTypeFactoryMap* factoryMap() { |
| static const InputTypeFactoryMap* factoryMap = |
| createInputTypeFactoryMap().release(); |
| return factoryMap; |
| } |
| |
| InputType* InputType::create(HTMLInputElement& element, |
| const AtomicString& typeName) { |
| InputTypeFactoryFunction factory = |
| typeName.isEmpty() ? 0 : factoryMap()->get(typeName); |
| if (!factory) |
| factory = TextInputType::create; |
| return factory(element); |
| } |
| |
| InputType* InputType::createText(HTMLInputElement& element) { |
| return TextInputType::create(element); |
| } |
| |
| const AtomicString& InputType::normalizeTypeName(const AtomicString& typeName) { |
| if (typeName.isEmpty()) |
| return InputTypeNames::text; |
| InputTypeFactoryMap::const_iterator it = factoryMap()->find(typeName); |
| return it == factoryMap()->end() ? InputTypeNames::text : it->key; |
| } |
| |
| InputType::~InputType() {} |
| |
| DEFINE_TRACE(InputType) { |
| visitor->trace(m_element); |
| } |
| |
| bool InputType::isTextField() const { |
| return false; |
| } |
| |
| bool InputType::shouldSaveAndRestoreFormControlState() const { |
| return true; |
| } |
| |
| bool InputType::isFormDataAppendable() const { |
| // There is no form data unless there's a name for non-image types. |
| return !element().name().isEmpty(); |
| } |
| |
| void InputType::appendToFormData(FormData& formData) const { |
| formData.append(element().name(), element().value()); |
| } |
| |
| String InputType::resultForDialogSubmit() const { |
| return element().fastGetAttribute(valueAttr); |
| } |
| |
| double InputType::valueAsDate() const { |
| return DateComponents::invalidMilliseconds(); |
| } |
| |
| void InputType::setValueAsDate(double, ExceptionState& exceptionState) const { |
| exceptionState.throwDOMException( |
| InvalidStateError, "This input element does not support Date values."); |
| } |
| |
| double InputType::valueAsDouble() const { |
| return std::numeric_limits<double>::quiet_NaN(); |
| } |
| |
| void InputType::setValueAsDouble(double doubleValue, |
| TextFieldEventBehavior eventBehavior, |
| ExceptionState& exceptionState) const { |
| exceptionState.throwDOMException( |
| InvalidStateError, "This input element does not support Number values."); |
| } |
| |
| void InputType::setValueAsDecimal(const Decimal& newValue, |
| TextFieldEventBehavior eventBehavior, |
| ExceptionState&) const { |
| element().setValue(serialize(newValue), eventBehavior); |
| } |
| |
| void InputType::readingChecked() const {} |
| |
| bool InputType::supportsValidation() const { |
| return true; |
| } |
| |
| bool InputType::typeMismatchFor(const String&) const { |
| return false; |
| } |
| |
| bool InputType::typeMismatch() const { |
| return false; |
| } |
| |
| bool InputType::supportsRequired() const { |
| // Almost all validatable types support @required. |
| return supportsValidation(); |
| } |
| |
| bool InputType::valueMissing(const String&) const { |
| return false; |
| } |
| |
| bool InputType::tooLong( |
| const String&, |
| HTMLTextFormControlElement::NeedsToCheckDirtyFlag) const { |
| return false; |
| } |
| |
| bool InputType::tooShort( |
| const String&, |
| HTMLTextFormControlElement::NeedsToCheckDirtyFlag) const { |
| return false; |
| } |
| |
| bool InputType::patternMismatch(const String&) const { |
| return false; |
| } |
| |
| bool InputType::rangeUnderflow(const String& value) const { |
| if (!isSteppable()) |
| return false; |
| |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return false; |
| |
| return numericValue < createStepRange(RejectAny).minimum(); |
| } |
| |
| bool InputType::rangeOverflow(const String& value) const { |
| if (!isSteppable()) |
| return false; |
| |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return false; |
| |
| return numericValue > createStepRange(RejectAny).maximum(); |
| } |
| |
| Decimal InputType::defaultValueForStepUp() const { |
| return 0; |
| } |
| |
| double InputType::minimum() const { |
| return createStepRange(RejectAny).minimum().toDouble(); |
| } |
| |
| double InputType::maximum() const { |
| return createStepRange(RejectAny).maximum().toDouble(); |
| } |
| |
| bool InputType::isInRange(const String& value) const { |
| if (!isSteppable()) |
| return false; |
| |
| // This function should return true if both of validity.rangeUnderflow and |
| // validity.rangeOverflow are false. |
| // If the INPUT has no value, they are false. |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return true; |
| |
| StepRange stepRange(createStepRange(RejectAny)); |
| return stepRange.hasRangeLimitations() && |
| numericValue >= stepRange.minimum() && |
| numericValue <= stepRange.maximum(); |
| } |
| |
| bool InputType::isOutOfRange(const String& value) const { |
| if (!isSteppable()) |
| return false; |
| |
| // This function should return true if either validity.rangeUnderflow or |
| // validity.rangeOverflow are true. |
| // If the INPUT has no value, they are false. |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return false; |
| |
| StepRange stepRange(createStepRange(RejectAny)); |
| return stepRange.hasRangeLimitations() && |
| (numericValue < stepRange.minimum() || |
| numericValue > stepRange.maximum()); |
| } |
| |
| bool InputType::stepMismatch(const String& value) const { |
| if (!isSteppable()) |
| return false; |
| |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return false; |
| |
| return createStepRange(RejectAny).stepMismatch(numericValue); |
| } |
| |
| String InputType::badInputText() const { |
| NOTREACHED(); |
| return locale().queryString(WebLocalizedString::ValidationTypeMismatch); |
| } |
| |
| String InputType::rangeOverflowText(const Decimal&) const { |
| NOTREACHED(); |
| return String(); |
| } |
| |
| String InputType::rangeUnderflowText(const Decimal&) const { |
| NOTREACHED(); |
| return String(); |
| } |
| |
| String InputType::typeMismatchText() const { |
| return locale().queryString(WebLocalizedString::ValidationTypeMismatch); |
| } |
| |
| String InputType::valueMissingText() const { |
| return locale().queryString(WebLocalizedString::ValidationValueMissing); |
| } |
| |
| std::pair<String, String> InputType::validationMessage( |
| const InputTypeView& inputTypeView) const { |
| const String value = element().value(); |
| |
| // The order of the following checks is meaningful. e.g. We'd like to show the |
| // badInput message even if the control has other validation errors. |
| if (inputTypeView.hasBadInput()) |
| return std::make_pair(badInputText(), emptyString()); |
| |
| if (valueMissing(value)) |
| return std::make_pair(valueMissingText(), emptyString()); |
| |
| if (typeMismatch()) |
| return std::make_pair(typeMismatchText(), emptyString()); |
| |
| if (patternMismatch(value)) { |
| // https://html.spec.whatwg.org/multipage/forms.html#attr-input-pattern |
| // When an input element has a pattern attribute specified, authors |
| // should include a title attribute to give a description of the |
| // pattern. User agents may use the contents of this attribute, if it |
| // is present, when informing the user that the pattern is not matched |
| return std::make_pair( |
| locale().queryString(WebLocalizedString::ValidationPatternMismatch), |
| element().fastGetAttribute(titleAttr).getString()); |
| } |
| |
| if (element().tooLong()) |
| return std::make_pair(locale().validationMessageTooLongText( |
| value.length(), element().maxLength()), |
| emptyString()); |
| |
| if (element().tooShort()) |
| return std::make_pair(locale().validationMessageTooShortText( |
| value.length(), element().minLength()), |
| emptyString()); |
| |
| if (!isSteppable()) |
| return std::make_pair(emptyString(), emptyString()); |
| |
| const Decimal numericValue = parseToNumberOrNaN(value); |
| if (!numericValue.isFinite()) |
| return std::make_pair(emptyString(), emptyString()); |
| |
| StepRange stepRange(createStepRange(RejectAny)); |
| |
| if (numericValue < stepRange.minimum()) |
| return std::make_pair(rangeUnderflowText(stepRange.minimum()), |
| emptyString()); |
| |
| if (numericValue > stepRange.maximum()) |
| return std::make_pair(rangeOverflowText(stepRange.maximum()), |
| emptyString()); |
| |
| if (stepRange.stepMismatch(numericValue)) { |
| DCHECK(stepRange.hasStep()); |
| Decimal candidate1 = stepRange.clampValue(numericValue); |
| String localizedCandidate1 = localizeValue(serialize(candidate1)); |
| Decimal candidate2 = candidate1 < numericValue |
| ? candidate1 + stepRange.step() |
| : candidate1 - stepRange.step(); |
| if (!candidate2.isFinite() || candidate2 < stepRange.minimum() || |
| candidate2 > stepRange.maximum()) |
| return std::make_pair( |
| locale().queryString( |
| WebLocalizedString::ValidationStepMismatchCloseToLimit, |
| localizedCandidate1), |
| emptyString()); |
| String localizedCandidate2 = localizeValue(serialize(candidate2)); |
| if (candidate1 < candidate2) |
| return std::make_pair( |
| locale().queryString(WebLocalizedString::ValidationStepMismatch, |
| localizedCandidate1, localizedCandidate2), |
| emptyString()); |
| return std::make_pair( |
| locale().queryString(WebLocalizedString::ValidationStepMismatch, |
| localizedCandidate2, localizedCandidate1), |
| emptyString()); |
| } |
| |
| return std::make_pair(emptyString(), emptyString()); |
| } |
| |
| Decimal InputType::parseToNumber(const String&, |
| const Decimal& defaultValue) const { |
| NOTREACHED(); |
| return defaultValue; |
| } |
| |
| Decimal InputType::parseToNumberOrNaN(const String& string) const { |
| return parseToNumber(string, Decimal::nan()); |
| } |
| |
| String InputType::serialize(const Decimal&) const { |
| NOTREACHED(); |
| return String(); |
| } |
| |
| ChromeClient* InputType::chromeClient() const { |
| if (FrameHost* host = element().document().frameHost()) |
| return &host->chromeClient(); |
| return nullptr; |
| } |
| |
| Locale& InputType::locale() const { |
| return element().locale(); |
| } |
| |
| bool InputType::canSetStringValue() const { |
| return true; |
| } |
| |
| bool InputType::isKeyboardFocusable() const { |
| return element().isFocusable(); |
| } |
| |
| bool InputType::shouldShowFocusRingOnMouseFocus() const { |
| return false; |
| } |
| |
| void InputType::enableSecureTextInput() {} |
| |
| void InputType::disableSecureTextInput() {} |
| |
| void InputType::countUsage() {} |
| |
| bool InputType::shouldRespectAlignAttribute() { |
| return false; |
| } |
| |
| void InputType::sanitizeValueInResponseToMinOrMaxAttributeChange() {} |
| |
| bool InputType::canBeSuccessfulSubmitButton() { |
| return false; |
| } |
| |
| bool InputType::matchesDefaultPseudoClass() { |
| return false; |
| } |
| |
| bool InputType::layoutObjectIsNeeded() { |
| return true; |
| } |
| |
| FileList* InputType::files() { |
| return nullptr; |
| } |
| |
| void InputType::setFiles(FileList*) {} |
| |
| void InputType::setFilesFromPaths(const Vector<String>& paths) {} |
| |
| bool InputType::getTypeSpecificValue(String&) { |
| return false; |
| } |
| |
| String InputType::fallbackValue() const { |
| return String(); |
| } |
| |
| String InputType::defaultValue() const { |
| return String(); |
| } |
| |
| bool InputType::canSetSuggestedValue() { |
| return false; |
| } |
| |
| bool InputType::shouldSendChangeEventAfterCheckedChanged() { |
| return true; |
| } |
| |
| bool InputType::storesValueSeparateFromAttribute() { |
| return true; |
| } |
| |
| bool InputType::shouldDispatchFormControlChangeEvent(String& oldValue, |
| String& newValue) { |
| return !equalIgnoringNullity(oldValue, newValue); |
| } |
| |
| void InputType::dispatchSearchEvent() {} |
| |
| void InputType::setValue(const String& sanitizedValue, |
| bool valueChanged, |
| TextFieldEventBehavior eventBehavior) { |
| element().setValueInternal(sanitizedValue, eventBehavior); |
| if (!valueChanged) |
| return; |
| switch (eventBehavior) { |
| case DispatchChangeEvent: |
| element().dispatchFormControlChangeEvent(); |
| break; |
| case DispatchInputAndChangeEvent: |
| element().dispatchFormControlInputEvent(); |
| element().dispatchFormControlChangeEvent(); |
| break; |
| case DispatchNoEvent: |
| break; |
| } |
| } |
| |
| bool InputType::canSetValue(const String&) { |
| return true; |
| } |
| |
| String InputType::localizeValue(const String& proposedValue) const { |
| return proposedValue; |
| } |
| |
| String InputType::visibleValue() const { |
| return element().value(); |
| } |
| |
| String InputType::sanitizeValue(const String& proposedValue) const { |
| return proposedValue; |
| } |
| |
| String InputType::sanitizeUserInputValue(const String& proposedValue) const { |
| return sanitizeValue(proposedValue); |
| } |
| |
| void InputType::warnIfValueIsInvalidAndElementIsVisible( |
| const String& value) const { |
| // Don't warn if the value is set in Modernizr. |
| const ComputedStyle* style = element().computedStyle(); |
| if (style && style->visibility() != EVisibility::Hidden) |
| warnIfValueIsInvalid(value); |
| } |
| |
| void InputType::warnIfValueIsInvalid(const String&) const {} |
| |
| bool InputType::receiveDroppedFiles(const DragData*) { |
| NOTREACHED(); |
| return false; |
| } |
| |
| String InputType::droppedFileSystemId() { |
| NOTREACHED(); |
| return String(); |
| } |
| |
| bool InputType::shouldRespectListAttribute() { |
| return false; |
| } |
| |
| bool InputType::isTextButton() const { |
| return false; |
| } |
| |
| bool InputType::isInteractiveContent() const { |
| return true; |
| } |
| |
| bool InputType::isEnumeratable() { |
| return true; |
| } |
| |
| bool InputType::isCheckable() { |
| return false; |
| } |
| |
| bool InputType::isSteppable() const { |
| return false; |
| } |
| |
| bool InputType::shouldRespectHeightAndWidthAttributes() { |
| return false; |
| } |
| |
| int InputType::maxLength() const { |
| return HTMLInputElement::maximumLength; |
| } |
| |
| int InputType::minLength() const { |
| return 0; |
| } |
| |
| bool InputType::supportsPlaceholder() const { |
| return false; |
| } |
| |
| bool InputType::supportsReadOnly() const { |
| return false; |
| } |
| |
| String InputType::defaultToolTip(const InputTypeView& inputTypeView) const { |
| if (element().form() && element().form()->noValidate()) |
| return String(); |
| return validationMessage(inputTypeView).first; |
| } |
| |
| Decimal InputType::findClosestTickMarkValue(const Decimal&) { |
| NOTREACHED(); |
| return Decimal::nan(); |
| } |
| |
| bool InputType::hasLegalLinkAttribute(const QualifiedName&) const { |
| return false; |
| } |
| |
| const QualifiedName& InputType::subResourceAttributeName() const { |
| return QualifiedName::null(); |
| } |
| |
| bool InputType::supportsAutocapitalize() const { |
| return false; |
| } |
| |
| const AtomicString& InputType::defaultAutocapitalize() const { |
| DEFINE_STATIC_LOCAL(const AtomicString, none, ("none")); |
| return none; |
| } |
| |
| bool InputType::shouldAppearIndeterminate() const { |
| return false; |
| } |
| |
| bool InputType::supportsInputModeAttribute() const { |
| return false; |
| } |
| |
| bool InputType::supportsSelectionAPI() const { |
| return false; |
| } |
| |
| unsigned InputType::height() const { |
| return 0; |
| } |
| |
| unsigned InputType::width() const { |
| return 0; |
| } |
| |
| ColorChooserClient* InputType::colorChooserClient() { |
| return nullptr; |
| } |
| |
| void InputType::applyStep(const Decimal& current, |
| int count, |
| AnyStepHandling anyStepHandling, |
| TextFieldEventBehavior eventBehavior, |
| ExceptionState& exceptionState) { |
| // https://html.spec.whatwg.org/multipage/forms.html#dom-input-stepup |
| |
| StepRange stepRange(createStepRange(anyStepHandling)); |
| // 2. If the element has no allowed value step, then throw an |
| // InvalidStateError exception, and abort these steps. |
| if (!stepRange.hasStep()) { |
| exceptionState.throwDOMException( |
| InvalidStateError, |
| "This form element does not have an allowed value step."); |
| return; |
| } |
| |
| // 3. If the element has a minimum and a maximum and the minimum is greater |
| // than the maximum, then abort these steps. |
| if (stepRange.minimum() > stepRange.maximum()) |
| return; |
| |
| // 4. If the element has a minimum and a maximum and there is no value |
| // greater than or equal to the element's minimum and less than or equal to |
| // the element's maximum that, when subtracted from the step base, is an |
| // integral multiple of the allowed value step, then abort these steps. |
| Decimal alignedMaximum = stepRange.stepSnappedMaximum(); |
| if (!alignedMaximum.isFinite()) |
| return; |
| |
| Decimal base = stepRange.stepBase(); |
| Decimal step = stepRange.step(); |
| EventQueueScope scope; |
| Decimal newValue = current; |
| const AtomicString& stepString = element().fastGetAttribute(stepAttr); |
| if (!equalIgnoringCase(stepString, "any") && |
| stepRange.stepMismatch(current)) { |
| // Snap-to-step / clamping steps |
| // If the current value is not matched to step value: |
| // - The value should be the larger matched value nearest to 0 if count > 0 |
| // e.g. <input type=number value=3 min=-100 step=3> -> 5 |
| // - The value should be the smaller matched value nearest to 0 if count < 0 |
| // e.g. <input type=number value=3 min=-100 step=3> -> 2 |
| // |
| |
| DCHECK(!step.isZero()); |
| if (count < 0) { |
| newValue = base + ((newValue - base) / step).floor() * step; |
| ++count; |
| } else if (count > 0) { |
| newValue = base + ((newValue - base) / step).ceil() * step; |
| --count; |
| } |
| } |
| newValue = newValue + stepRange.step() * count; |
| |
| if (!equalIgnoringCase(stepString, "any")) |
| newValue = stepRange.alignValueForStep(current, newValue); |
| |
| // 7. If the element has a minimum, and value is less than that minimum, |
| // then set value to the smallest value that, when subtracted from the step |
| // base, is an integral multiple of the allowed value step, and that is more |
| // than or equal to minimum. |
| // 8. If the element has a maximum, and value is greater than that maximum, |
| // then set value to the largest value that, when subtracted from the step |
| // base, is an integral multiple of the allowed value step, and that is less |
| // than or equal to maximum. |
| if (newValue > stepRange.maximum()) { |
| newValue = alignedMaximum; |
| } else if (newValue < stepRange.minimum()) { |
| const Decimal alignedMinimum = |
| base + ((stepRange.minimum() - base) / step).ceil() * step; |
| DCHECK_GE(alignedMinimum, stepRange.minimum()); |
| newValue = alignedMinimum; |
| } |
| |
| // 9. Let value as string be the result of running the algorithm to convert |
| // a number to a string, as defined for the input element's type attribute's |
| // current state, on value. |
| // 10. Set the value of the element to value as string. |
| setValueAsDecimal(newValue, eventBehavior, exceptionState); |
| |
| if (AXObjectCache* cache = element().document().existingAXObjectCache()) |
| cache->handleValueChanged(&element()); |
| } |
| |
| bool InputType::getAllowedValueStep(Decimal* step) const { |
| StepRange stepRange(createStepRange(RejectAny)); |
| *step = stepRange.step(); |
| return stepRange.hasStep(); |
| } |
| |
| StepRange InputType::createStepRange(AnyStepHandling) const { |
| NOTREACHED(); |
| return StepRange(); |
| } |
| |
| void InputType::stepUp(int n, ExceptionState& exceptionState) { |
| if (!isSteppable()) { |
| exceptionState.throwDOMException(InvalidStateError, |
| "This form element is not steppable."); |
| return; |
| } |
| const Decimal current = parseToNumber(element().value(), 0); |
| applyStep(current, n, RejectAny, DispatchNoEvent, exceptionState); |
| } |
| |
| void InputType::stepUpFromLayoutObject(int n) { |
| // The only difference from stepUp()/stepDown() is the extra treatment |
| // of the current value before applying the step: |
| // |
| // If the current value is not a number, including empty, the current value is |
| // assumed as 0. |
| // * If 0 is in-range, and matches to step value |
| // - The value should be the +step if n > 0 |
| // - The value should be the -step if n < 0 |
| // If -step or +step is out of range, new value should be 0. |
| // * If 0 is smaller than the minimum value |
| // - The value should be the minimum value for any n |
| // * If 0 is larger than the maximum value |
| // - The value should be the maximum value for any n |
| // * If 0 is in-range, but not matched to step value |
| // - The value should be the larger matched value nearest to 0 if n > 0 |
| // e.g. <input type=number min=-100 step=3> -> 2 |
| // - The value should be the smaler matched value nearest to 0 if n < 0 |
| // e.g. <input type=number min=-100 step=3> -> -1 |
| // As for date/datetime-local/month/time/week types, the current value is |
| // assumed as "the current local date/time". |
| // As for datetime type, the current value is assumed as "the current |
| // date/time in UTC". |
| // If the current value is smaller than the minimum value: |
| // - The value should be the minimum value if n > 0 |
| // - Nothing should happen if n < 0 |
| // If the current value is larger than the maximum value: |
| // - The value should be the maximum value if n < 0 |
| // - Nothing should happen if n > 0 |
| // |
| // n is assumed as -n if step < 0. |
| |
| DCHECK(isSteppable()); |
| if (!isSteppable()) |
| return; |
| DCHECK(n); |
| if (!n) |
| return; |
| |
| StepRange stepRange(createStepRange(AnyIsDefaultStep)); |
| |
| // FIXME: Not any changes after stepping, even if it is an invalid value, may |
| // be better. |
| // (e.g. Stepping-up for <input type="number" value="foo" step="any" /> => |
| // "foo") |
| if (!stepRange.hasStep()) |
| return; |
| |
| EventQueueScope scope; |
| const Decimal step = stepRange.step(); |
| |
| int sign; |
| if (step > 0) |
| sign = n; |
| else if (step < 0) |
| sign = -n; |
| else |
| sign = 0; |
| |
| Decimal current = parseToNumberOrNaN(element().value()); |
| if (!current.isFinite()) { |
| current = defaultValueForStepUp(); |
| const Decimal nextDiff = step * n; |
| if (current < stepRange.minimum() - nextDiff) |
| current = stepRange.minimum() - nextDiff; |
| if (current > stepRange.maximum() - nextDiff) |
| current = stepRange.maximum() - nextDiff; |
| setValueAsDecimal(current, DispatchNoEvent, IGNORE_EXCEPTION); |
| } |
| if ((sign > 0 && current < stepRange.minimum()) || |
| (sign < 0 && current > stepRange.maximum())) { |
| setValueAsDecimal(sign > 0 ? stepRange.minimum() : stepRange.maximum(), |
| DispatchChangeEvent, IGNORE_EXCEPTION); |
| return; |
| } |
| if ((sign > 0 && current >= stepRange.maximum()) || |
| (sign < 0 && current <= stepRange.minimum())) |
| return; |
| applyStep(current, n, AnyIsDefaultStep, DispatchChangeEvent, |
| IGNORE_EXCEPTION); |
| } |
| |
| void InputType::countUsageIfVisible(UseCounter::Feature feature) const { |
| if (const ComputedStyle* style = element().computedStyle()) { |
| if (style->visibility() != EVisibility::Hidden) |
| UseCounter::count(element().document(), feature); |
| } |
| } |
| |
| Decimal InputType::findStepBase(const Decimal& defaultValue) const { |
| Decimal stepBase = |
| parseToNumber(element().fastGetAttribute(minAttr), Decimal::nan()); |
| if (!stepBase.isFinite()) |
| stepBase = |
| parseToNumber(element().fastGetAttribute(valueAttr), defaultValue); |
| return stepBase; |
| } |
| |
| StepRange InputType::createStepRange( |
| AnyStepHandling anyStepHandling, |
| const Decimal& stepBaseDefault, |
| const Decimal& minimumDefault, |
| const Decimal& maximumDefault, |
| const StepRange::StepDescription& stepDescription) const { |
| bool hasRangeLimitations = false; |
| const Decimal stepBase = findStepBase(stepBaseDefault); |
| Decimal minimum = parseToNumberOrNaN(element().fastGetAttribute(minAttr)); |
| if (minimum.isFinite()) |
| hasRangeLimitations = true; |
| else |
| minimum = minimumDefault; |
| Decimal maximum = parseToNumberOrNaN(element().fastGetAttribute(maxAttr)); |
| if (maximum.isFinite()) |
| hasRangeLimitations = true; |
| else |
| maximum = maximumDefault; |
| const Decimal step = StepRange::parseStep( |
| anyStepHandling, stepDescription, element().fastGetAttribute(stepAttr)); |
| return StepRange(stepBase, minimum, maximum, hasRangeLimitations, step, |
| stepDescription); |
| } |
| |
| void InputType::addWarningToConsole(const char* messageFormat, |
| const String& value) const { |
| element().document().addConsoleMessage(ConsoleMessage::create( |
| RenderingMessageSource, WarningMessageLevel, |
| String::format(messageFormat, |
| JSONValue::quoteString(value).utf8().data()))); |
| } |
| |
| } // namespace blink |