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/HiddenInputType.h"
34
35#include "core/HTMLNames.h"
36#include "core/InputTypeNames.h"
37#include "core/html/FormDataList.h"
38#include "core/html/HTMLInputElement.h"
39#include "core/html/forms/FormController.h"
40#include "wtf/PassOwnPtr.h"
41
42namespace blink {
43
44using namespace HTMLNames;
45
46PassRefPtrWillBeRawPtr<InputType> HiddenInputType::create(HTMLInputElement& element)
47{
48    return adoptRefWillBeNoop(new HiddenInputType(element));
49}
50
51const AtomicString& HiddenInputType::formControlType() const
52{
53    return InputTypeNames::hidden;
54}
55
56FormControlState HiddenInputType::saveFormControlState() const
57{
58    // valueAttributeWasUpdatedAfterParsing() never be true for form
59    // controls create by createElement() or cloneNode(). It's ok for
60    // now because we restore values only to form controls created by
61    // parsing.
62    return element().valueAttributeWasUpdatedAfterParsing() ? FormControlState(element().value()) : FormControlState();
63}
64
65void HiddenInputType::restoreFormControlState(const FormControlState& state)
66{
67    element().setAttribute(valueAttr, AtomicString(state[0]));
68}
69
70bool HiddenInputType::supportsValidation() const
71{
72    return false;
73}
74
75RenderObject* HiddenInputType::createRenderer(RenderStyle*) const
76{
77    ASSERT_NOT_REACHED();
78    return 0;
79}
80
81void HiddenInputType::accessKeyAction(bool)
82{
83}
84
85bool HiddenInputType::rendererIsNeeded()
86{
87    return false;
88}
89
90bool HiddenInputType::storesValueSeparateFromAttribute()
91{
92    return false;
93}
94
95void HiddenInputType::setValue(const String& sanitizedValue, bool, TextFieldEventBehavior)
96{
97    element().setAttribute(valueAttr, AtomicString(sanitizedValue));
98}
99
100bool HiddenInputType::appendFormData(FormDataList& encoding, bool isMultipartForm) const
101{
102    if (equalIgnoringCase(element().name(), "_charset_")) {
103        encoding.appendData(element().name(), String(encoding.encoding().name()));
104        return true;
105    }
106    return InputType::appendFormData(encoding, isMultipartForm);
107}
108
109bool HiddenInputType::shouldRespectHeightAndWidthAttributes()
110{
111    return true;
112}
113
114} // namespace blink
115