1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#if ENABLE(INPUT_TYPE_COLOR) 33#include "ColorInputType.h" 34 35#include "CSSPropertyNames.h" 36#include "Chrome.h" 37#include "Color.h" 38#include "HTMLDataListElement.h" 39#include "HTMLDivElement.h" 40#include "HTMLInputElement.h" 41#include "HTMLOptionElement.h" 42#include "InputTypeNames.h" 43#include "MouseEvent.h" 44#include "RenderObject.h" 45#include "RenderView.h" 46#include "ScriptController.h" 47#include "ShadowRoot.h" 48 49namespace WebCore { 50 51using namespace HTMLNames; 52 53static bool isValidColorString(const String& value) 54{ 55 if (value.isEmpty()) 56 return false; 57 if (value[0] != '#') 58 return false; 59 60 // We don't accept #rgb and #aarrggbb formats. 61 if (value.length() != 7) 62 return false; 63 Color color(value); 64 return color.isValid() && !color.hasAlpha(); 65} 66 67ColorInputType::~ColorInputType() 68{ 69 endColorChooser(); 70} 71 72bool ColorInputType::isColorControl() const 73{ 74 return true; 75} 76 77const AtomicString& ColorInputType::formControlType() const 78{ 79 return InputTypeNames::color(); 80} 81 82bool ColorInputType::supportsRequired() const 83{ 84 return false; 85} 86 87String ColorInputType::fallbackValue() const 88{ 89 return String("#000000"); 90} 91 92String ColorInputType::sanitizeValue(const String& proposedValue) const 93{ 94 if (!isValidColorString(proposedValue)) 95 return fallbackValue(); 96 97 return proposedValue.lower(); 98} 99 100Color ColorInputType::valueAsColor() const 101{ 102 return Color(element().value()); 103} 104 105void ColorInputType::createShadowSubtree() 106{ 107 ASSERT(element().shadowRoot()); 108 109 Document& document = element().document(); 110 RefPtr<HTMLDivElement> wrapperElement = HTMLDivElement::create(document); 111 wrapperElement->setPseudo(AtomicString("-webkit-color-swatch-wrapper", AtomicString::ConstructFromLiteral)); 112 RefPtr<HTMLDivElement> colorSwatch = HTMLDivElement::create(document); 113 colorSwatch->setPseudo(AtomicString("-webkit-color-swatch", AtomicString::ConstructFromLiteral)); 114 wrapperElement->appendChild(colorSwatch.release(), ASSERT_NO_EXCEPTION); 115 element().userAgentShadowRoot()->appendChild(wrapperElement.release(), ASSERT_NO_EXCEPTION); 116 117 updateColorSwatch(); 118} 119 120void ColorInputType::setValue(const String& value, bool valueChanged, TextFieldEventBehavior eventBehavior) 121{ 122 InputType::setValue(value, valueChanged, eventBehavior); 123 124 if (!valueChanged) 125 return; 126 127 updateColorSwatch(); 128 if (m_chooser) 129 m_chooser->setSelectedColor(valueAsColor()); 130} 131 132void ColorInputType::handleDOMActivateEvent(Event* event) 133{ 134 if (element().isDisabledOrReadOnly() || !element().renderer()) 135 return; 136 137 if (!ScriptController::processingUserGesture()) 138 return; 139 140 if (Chrome* chrome = this->chrome()) { 141 if (!m_chooser) 142 m_chooser = chrome->createColorChooser(this, valueAsColor()); 143 else 144 m_chooser->reattachColorChooser(valueAsColor()); 145 } 146 147 event->setDefaultHandled(); 148} 149 150void ColorInputType::detach() 151{ 152 endColorChooser(); 153} 154 155bool ColorInputType::shouldRespectListAttribute() 156{ 157 return InputType::themeSupportsDataListUI(this); 158} 159 160bool ColorInputType::typeMismatchFor(const String& value) const 161{ 162 return !isValidColorString(value); 163} 164 165bool ColorInputType::shouldResetOnDocumentActivation() 166{ 167 return true; 168} 169 170void ColorInputType::didChooseColor(const Color& color) 171{ 172 if (element().isDisabledOrReadOnly() || color == valueAsColor()) 173 return; 174 element().setValueFromRenderer(color.serialized()); 175 updateColorSwatch(); 176 element().dispatchFormControlChangeEvent(); 177} 178 179void ColorInputType::didEndChooser() 180{ 181 m_chooser.clear(); 182} 183 184void ColorInputType::endColorChooser() 185{ 186 if (m_chooser) 187 m_chooser->endChooser(); 188} 189 190void ColorInputType::updateColorSwatch() 191{ 192 HTMLElement* colorSwatch = shadowColorSwatch(); 193 if (!colorSwatch) 194 return; 195 196 colorSwatch->setInlineStyleProperty(CSSPropertyBackgroundColor, element().value(), false); 197} 198 199HTMLElement* ColorInputType::shadowColorSwatch() const 200{ 201 ShadowRoot* shadow = element().userAgentShadowRoot(); 202 return shadow ? toHTMLElement(shadow->firstChild()->firstChild()) : 0; 203} 204 205IntRect ColorInputType::elementRectRelativeToRootView() const 206{ 207 return element().document().view()->contentsToRootView(element().pixelSnappedBoundingBox()); 208} 209 210Color ColorInputType::currentColor() 211{ 212 return valueAsColor(); 213} 214 215bool ColorInputType::shouldShowSuggestions() const 216{ 217#if ENABLE(DATALIST_ELEMENT) 218 return element().fastHasAttribute(listAttr); 219#else 220 return false; 221#endif 222} 223 224Vector<Color> ColorInputType::suggestions() const 225{ 226 Vector<Color> suggestions; 227#if ENABLE(DATALIST_ELEMENT) 228 HTMLDataListElement* dataList = element().dataList(); 229 if (dataList) { 230 RefPtr<HTMLCollection> options = dataList->options(); 231 for (unsigned i = 0; HTMLOptionElement* option = toHTMLOptionElement(options->item(i)); i++) { 232 if (!element().isValidValue(option->value())) 233 continue; 234 Color color(option->value()); 235 if (!color.isValid()) 236 continue; 237 suggestions.append(color); 238 } 239 } 240#endif 241 return suggestions; 242} 243 244} // namespace WebCore 245 246#endif // ENABLE(INPUT_TYPE_COLOR) 247