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/BaseCheckableInputType.h"
34
35#include "core/HTMLNames.h"
36#include "core/events/KeyboardEvent.h"
37#include "core/html/FormDataList.h"
38#include "core/html/HTMLInputElement.h"
39#include "core/html/forms/FormController.h"
40
41namespace blink {
42
43using namespace HTMLNames;
44
45FormControlState BaseCheckableInputType::saveFormControlState() const
46{
47    return FormControlState(element().checked() ? "on" : "off");
48}
49
50void BaseCheckableInputType::restoreFormControlState(const FormControlState& state)
51{
52    element().setChecked(state[0] == "on");
53}
54
55bool BaseCheckableInputType::appendFormData(FormDataList& encoding, bool) const
56{
57    if (!element().checked())
58        return false;
59    encoding.appendData(element().name(), element().value());
60    return true;
61}
62
63void BaseCheckableInputType::handleKeydownEvent(KeyboardEvent* event)
64{
65    const String& key = event->keyIdentifier();
66    if (key == "U+0020") {
67        element().setActive(true);
68        // No setDefaultHandled(), because IE dispatches a keypress in this case
69        // and the caller will only dispatch a keypress if we don't call setDefaultHandled().
70    }
71}
72
73void BaseCheckableInputType::handleKeypressEvent(KeyboardEvent* event)
74{
75    if (event->charCode() == ' ') {
76        // Prevent scrolling down the page.
77        event->setDefaultHandled();
78    }
79}
80
81bool BaseCheckableInputType::canSetStringValue() const
82{
83    return false;
84}
85
86// FIXME: Could share this with BaseClickableWithKeyInputType and RangeInputType if we had a common base class.
87void BaseCheckableInputType::accessKeyAction(bool sendMouseEvents)
88{
89    InputType::accessKeyAction(sendMouseEvents);
90
91    element().dispatchSimulatedClick(0, sendMouseEvents ? SendMouseUpDownEvents : SendNoEvents);
92}
93
94String BaseCheckableInputType::fallbackValue() const
95{
96    return "on";
97}
98
99bool BaseCheckableInputType::storesValueSeparateFromAttribute()
100{
101    return false;
102}
103
104void BaseCheckableInputType::setValue(const String& sanitizedValue, bool, TextFieldEventBehavior)
105{
106    element().setAttribute(valueAttr, AtomicString(sanitizedValue));
107}
108
109bool BaseCheckableInputType::isCheckable()
110{
111    return true;
112}
113
114bool BaseCheckableInputType::shouldDispatchFormControlChangeEvent(String& oldValue, String& newValue)
115{
116    return oldValue != newValue;
117}
118
119} // namespace blink
120