1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * Copyright (C) 2011 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include "config.h" 33#include "core/html/forms/NumberInputType.h" 34 35#include "bindings/core/v8/ExceptionState.h" 36#include "core/HTMLNames.h" 37#include "core/InputTypeNames.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" 46#include <limits> 47 48namespace blink { 49 50using blink::WebLocalizedString; 51using namespace HTMLNames; 52 53static const int numberDefaultStep = 1; 54static const int numberDefaultStepBase = 0; 55static const int numberStepScaleFactor = 1; 56 57struct RealNumberRenderSize { 58 unsigned sizeBeforeDecimalPoint; 59 unsigned sizeAfteDecimalPoint; 60 61 RealNumberRenderSize(unsigned before, unsigned after) 62 : sizeBeforeDecimalPoint(before) 63 , sizeAfteDecimalPoint(after) 64 { 65 } 66 67 RealNumberRenderSize max(const RealNumberRenderSize& other) const 68 { 69 return RealNumberRenderSize( 70 std::max(sizeBeforeDecimalPoint, other.sizeBeforeDecimalPoint), 71 std::max(sizeAfteDecimalPoint, other.sizeAfteDecimalPoint)); 72 } 73}; 74 75static RealNumberRenderSize calculateRenderSize(const Decimal& value) 76{ 77 ASSERT(value.isFinite()); 78 const unsigned sizeOfDigits = String::number(value.value().coefficient()).length(); 79 const unsigned sizeOfSign = value.isNegative() ? 1 : 0; 80 const int exponent = value.exponent(); 81 if (exponent >= 0) 82 return RealNumberRenderSize(sizeOfSign + sizeOfDigits, 0); 83 84 const int sizeBeforeDecimalPoint = exponent + sizeOfDigits; 85 if (sizeBeforeDecimalPoint > 0) { 86 // In case of "123.456" 87 return RealNumberRenderSize(sizeOfSign + sizeBeforeDecimalPoint, sizeOfDigits - sizeBeforeDecimalPoint); 88 } 89 90 // In case of "0.00012345" 91 const unsigned sizeOfZero = 1; 92 const unsigned numberOfZeroAfterDecimalPoint = -sizeBeforeDecimalPoint; 93 return RealNumberRenderSize(sizeOfSign + sizeOfZero , numberOfZeroAfterDecimalPoint + sizeOfDigits); 94} 95 96PassRefPtrWillBeRawPtr<InputType> NumberInputType::create(HTMLInputElement& element) 97{ 98 return adoptRefWillBeNoop(new NumberInputType(element)); 99} 100 101void NumberInputType::countUsage() 102{ 103 countUsageIfVisible(UseCounter::InputTypeNumber); 104} 105 106const AtomicString& NumberInputType::formControlType() const 107{ 108 return InputTypeNames::number; 109} 110 111void NumberInputType::setValue(const String& sanitizedValue, bool valueChanged, TextFieldEventBehavior eventBehavior) 112{ 113 if (!valueChanged && sanitizedValue.isEmpty() && !element().innerEditorValue().isEmpty()) 114 element().updateView(); 115 TextFieldInputType::setValue(sanitizedValue, valueChanged, eventBehavior); 116} 117 118double NumberInputType::valueAsDouble() const 119{ 120 return parseToDoubleForNumberType(element().value()); 121} 122 123void NumberInputType::setValueAsDouble(double newValue, TextFieldEventBehavior eventBehavior, ExceptionState& exceptionState) const 124{ 125 element().setValue(serializeForNumberType(newValue), eventBehavior); 126} 127 128void NumberInputType::setValueAsDecimal(const Decimal& newValue, TextFieldEventBehavior eventBehavior, ExceptionState& exceptionState) const 129{ 130 element().setValue(serializeForNumberType(newValue), eventBehavior); 131} 132 133bool NumberInputType::typeMismatchFor(const String& value) const 134{ 135 return !value.isEmpty() && !std::isfinite(parseToDoubleForNumberType(value)); 136} 137 138bool NumberInputType::typeMismatch() const 139{ 140 ASSERT(!typeMismatchFor(element().value())); 141 return false; 142} 143 144StepRange NumberInputType::createStepRange(AnyStepHandling anyStepHandling) const 145{ 146 DEFINE_STATIC_LOCAL(const StepRange::StepDescription, stepDescription, (numberDefaultStep, numberDefaultStepBase, numberStepScaleFactor)); 147 const Decimal doubleMax = Decimal::fromDouble(std::numeric_limits<double>::max()); 148 return InputType::createStepRange(anyStepHandling, numberDefaultStepBase, -doubleMax, doubleMax, stepDescription); 149} 150 151bool NumberInputType::sizeShouldIncludeDecoration(int defaultSize, int& preferredSize) const 152{ 153 preferredSize = defaultSize; 154 155 const String stepString = element().fastGetAttribute(stepAttr); 156 if (equalIgnoringCase(stepString, "any")) 157 return false; 158 159 const Decimal minimum = parseToDecimalForNumberType(element().fastGetAttribute(minAttr)); 160 if (!minimum.isFinite()) 161 return false; 162 163 const Decimal maximum = parseToDecimalForNumberType(element().fastGetAttribute(maxAttr)); 164 if (!maximum.isFinite()) 165 return false; 166 167 const Decimal step = parseToDecimalForNumberType(stepString, 1); 168 ASSERT(step.isFinite()); 169 170 RealNumberRenderSize size = calculateRenderSize(minimum).max(calculateRenderSize(maximum).max(calculateRenderSize(step))); 171 172 preferredSize = size.sizeBeforeDecimalPoint + size.sizeAfteDecimalPoint + (size.sizeAfteDecimalPoint ? 1 : 0); 173 174 return true; 175} 176 177bool NumberInputType::isSteppable() const 178{ 179 return true; 180} 181 182void NumberInputType::handleKeydownEvent(KeyboardEvent* event) 183{ 184 handleKeydownEventForSpinButton(event); 185 if (!event->defaultHandled()) 186 TextFieldInputType::handleKeydownEvent(event); 187} 188 189Decimal NumberInputType::parseToNumber(const String& src, const Decimal& defaultValue) const 190{ 191 return parseToDecimalForNumberType(src, defaultValue); 192} 193 194String NumberInputType::serialize(const Decimal& value) const 195{ 196 if (!value.isFinite()) 197 return String(); 198 return serializeForNumberType(value); 199} 200 201static bool isE(UChar ch) 202{ 203 return ch == 'e' || ch == 'E'; 204} 205 206String NumberInputType::localizeValue(const String& proposedValue) const 207{ 208 if (proposedValue.isEmpty()) 209 return proposedValue; 210 // We don't localize scientific notations. 211 if (proposedValue.find(isE) != kNotFound) 212 return proposedValue; 213 return element().locale().convertToLocalizedNumber(proposedValue); 214} 215 216String NumberInputType::visibleValue() const 217{ 218 return localizeValue(element().value()); 219} 220 221String NumberInputType::convertFromVisibleValue(const String& visibleValue) const 222{ 223 if (visibleValue.isEmpty()) 224 return visibleValue; 225 // We don't localize scientific notations. 226 if (visibleValue.find(isE) != kNotFound) 227 return visibleValue; 228 return element().locale().convertFromLocalizedNumber(visibleValue); 229} 230 231String NumberInputType::sanitizeValue(const String& proposedValue) const 232{ 233 if (proposedValue.isEmpty()) 234 return proposedValue; 235 return std::isfinite(parseToDoubleForNumberType(proposedValue)) ? proposedValue : emptyString(); 236} 237 238bool NumberInputType::hasBadInput() const 239{ 240 String standardValue = convertFromVisibleValue(element().innerEditorValue()); 241 return !standardValue.isEmpty() && !std::isfinite(parseToDoubleForNumberType(standardValue)); 242} 243 244String NumberInputType::badInputText() const 245{ 246 return locale().queryString(WebLocalizedString::ValidationBadInputForNumber); 247} 248 249String NumberInputType::rangeOverflowText(const Decimal& maximum) const 250{ 251 return locale().queryString(WebLocalizedString::ValidationRangeOverflow, localizeValue(serialize(maximum))); 252} 253 254String NumberInputType::rangeUnderflowText(const Decimal& minimum) const 255{ 256 return locale().queryString(WebLocalizedString::ValidationRangeUnderflow, localizeValue(serialize(minimum))); 257} 258 259bool NumberInputType::shouldRespectSpeechAttribute() 260{ 261 return true; 262} 263 264bool NumberInputType::supportsPlaceholder() const 265{ 266 return true; 267} 268 269void NumberInputType::minOrMaxAttributeChanged() 270{ 271 InputType::minOrMaxAttributeChanged(); 272 273 if (element().renderer()) 274 element().renderer()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); 275} 276 277void NumberInputType::stepAttributeChanged() 278{ 279 InputType::stepAttributeChanged(); 280 281 if (element().renderer()) 282 element().renderer()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); 283} 284 285bool NumberInputType::supportsSelectionAPI() const 286{ 287 return false; 288} 289 290} // namespace blink 291