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