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 "CheckboxInputType.h" 34 35#include "HTMLInputElement.h" 36#include "InputTypeNames.h" 37#include "KeyboardEvent.h" 38#include "LocalizedStrings.h" 39#include <wtf/PassOwnPtr.h> 40 41namespace WebCore { 42 43PassOwnPtr<InputType> CheckboxInputType::create(HTMLInputElement* element) 44{ 45 return adoptPtr(new CheckboxInputType(element)); 46} 47 48const AtomicString& CheckboxInputType::formControlType() const 49{ 50 return InputTypeNames::checkbox(); 51} 52 53bool CheckboxInputType::valueMissing(const String&) const 54{ 55 return element()->isRequired() && !element()->checked(); 56} 57 58String CheckboxInputType::valueMissingText() const 59{ 60 return validationMessageValueMissingForCheckboxText(); 61} 62 63void CheckboxInputType::handleKeyupEvent(KeyboardEvent* event) 64{ 65 const String& key = event->keyIdentifier(); 66 if (key != "U+0020") 67 return; 68 dispatchSimulatedClickIfActive(event); 69} 70 71PassOwnPtr<ClickHandlingState> CheckboxInputType::willDispatchClick() 72{ 73 // An event handler can use preventDefault or "return false" to reverse the checking we do here. 74 // The ClickHandlingState object contains what we need to undo what we did here in didDispatchClick. 75 76 OwnPtr<ClickHandlingState> state = adoptPtr(new ClickHandlingState); 77 78 state->checked = element()->checked(); 79 state->indeterminate = element()->indeterminate(); 80 81 if (state->indeterminate) 82 element()->setIndeterminate(false); 83 84 element()->setChecked(!state->checked, DispatchChangeEvent); 85 86 return state.release(); 87} 88 89void CheckboxInputType::didDispatchClick(Event* event, const ClickHandlingState& state) 90{ 91 if (event->defaultPrevented() || event->defaultHandled()) { 92 element()->setIndeterminate(state.indeterminate); 93 element()->setChecked(state.checked); 94 } 95 96 // The work we did in willDispatchClick was default handling. 97 event->setDefaultHandled(); 98} 99 100bool CheckboxInputType::isCheckbox() const 101{ 102 return true; 103} 104 105bool CheckboxInputType::supportsIndeterminateAppearance() const 106{ 107 return true; 108} 109 110} // namespace WebCore 111