1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef HTMLFormControlElement_h
#define HTMLFormControlElement_h
#include "FormAssociatedElement.h"
#include "LabelableElement.h"
namespace WebCore {
class FormDataList;
class HTMLFieldSetElement;
class HTMLFormElement;
class HTMLLegendElement;
class ValidationMessage;
class ValidityState;
// HTMLFormControlElement is the default implementation of FormAssociatedElement,
// and form-associated element implementations should use HTMLFormControlElement
// unless there is a special reason.
class HTMLFormControlElement : public LabelableElement, public FormAssociatedElement {
public:
virtual ~HTMLFormControlElement();
HTMLFormElement* form() const { return FormAssociatedElement::form(); }
String formEnctype() const;
void setFormEnctype(const String&);
String formMethod() const;
void setFormMethod(const String&);
bool formNoValidate() const;
void ancestorDisabledStateWasChanged();
virtual void reset() { }
virtual bool formControlValueMatchesRenderer() const { return m_valueMatchesRenderer; }
virtual void setFormControlValueMatchesRenderer(bool b) { m_valueMatchesRenderer = b; }
bool wasChangedSinceLastFormControlChangeEvent() const { return m_wasChangedSinceLastFormControlChangeEvent; }
void setChangedSinceLastFormControlChangeEvent(bool);
virtual void dispatchFormControlChangeEvent();
void dispatchChangeEvent();
void dispatchFormControlInputEvent();
virtual bool isDisabledFormControl() const OVERRIDE;
virtual bool isFocusable() const OVERRIDE;
virtual bool isEnumeratable() const { return false; }
bool isRequired() const;
const AtomicString& type() const { return formControlType(); }
virtual const AtomicString& formControlType() const = 0;
virtual bool canTriggerImplicitSubmission() const { return false; }
// Override in derived classes to get the encoded name=value pair for submitting.
// Return true for a successful control (see HTML4-17.13.2).
virtual bool appendFormData(FormDataList&, bool) { return false; }
virtual bool isSuccessfulSubmitButton() const { return false; }
virtual bool isActivatedSubmit() const { return false; }
virtual void setActivatedSubmit(bool) { }
virtual bool willValidate() const;
void updateVisibleValidationMessage();
void hideVisibleValidationMessage();
bool checkValidity(Vector<RefPtr<FormAssociatedElement> >* unhandledInvalidControls = 0);
// This must be called when a validation constraint or control value is changed.
void setNeedsValidityCheck();
virtual void setCustomValidity(const String&) OVERRIDE;
bool isReadOnly() const { return m_isReadOnly; }
bool isDisabledOrReadOnly() const { return isDisabledFormControl() || m_isReadOnly; }
bool hasAutofocused() { return m_hasAutofocused; }
void setAutofocused() { m_hasAutofocused = true; }
static HTMLFormControlElement* enclosingFormControlElement(Node*);
using Node::ref;
using Node::deref;
protected:
HTMLFormControlElement(const QualifiedName& tagName, Document*, HTMLFormElement*);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
virtual void requiredAttributeChanged();
virtual void disabledAttributeChanged();
virtual void attach(const AttachContext& = AttachContext()) OVERRIDE;
virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
virtual void removedFrom(ContainerNode*) OVERRIDE;
virtual void didMoveToNewDocument(Document* oldDocument) OVERRIDE;
virtual bool supportsFocus() const OVERRIDE;
virtual bool isKeyboardFocusable(KeyboardEvent*) const OVERRIDE;
virtual bool isMouseFocusable() const OVERRIDE;
virtual void didRecalcStyle(StyleChange) OVERRIDE;
virtual void dispatchBlurEvent(PassRefPtr<Element> newFocusedElement) OVERRIDE;
// This must be called any time the result of willValidate() has changed.
void setNeedsWillValidateCheck();
virtual bool recalcWillValidate() const;
bool validationMessageShadowTreeContains(Node*) const;
private:
virtual void refFormAssociatedElement() { ref(); }
virtual void derefFormAssociatedElement() { deref(); }
virtual bool isFormControlElement() const { return true; }
virtual bool alwaysCreateUserAgentShadowRoot() const OVERRIDE { return true; }
virtual short tabIndex() const OVERRIDE FINAL;
virtual HTMLFormElement* virtualForm() const;
virtual bool isDefaultButtonForForm() const;
virtual bool isValidFormControlElement();
void updateAncestorDisabledState() const;
OwnPtr<ValidationMessage> m_validationMessage;
bool m_disabled : 1;
bool m_isReadOnly : 1;
bool m_isRequired : 1;
bool m_valueMatchesRenderer : 1;
enum AncestorDisabledState { AncestorDisabledStateUnknown, AncestorDisabledStateEnabled, AncestorDisabledStateDisabled };
mutable AncestorDisabledState m_ancestorDisabledState;
enum DataListAncestorState { Unknown, InsideDataList, NotInsideDataList };
mutable enum DataListAncestorState m_dataListAncestorState;
// The initial value of m_willValidate depends on the derived class. We can't
// initialize it with a virtual function in the constructor. m_willValidate
// is not deterministic as long as m_willValidateInitialized is false.
mutable bool m_willValidateInitialized: 1;
mutable bool m_willValidate : 1;
// Cache of validity()->valid().
// But "candidate for constraint validation" doesn't affect m_isValid.
bool m_isValid : 1;
bool m_wasChangedSinceLastFormControlChangeEvent : 1;
bool m_hasAutofocused : 1;
};
inline bool isHTMLFormControlElement(const Node* node)
{
return node->isElementNode() && toElement(node)->isFormControlElement();
}
inline HTMLFormControlElement* toHTMLFormControlElement(Node* node)
{
ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLFormControlElement(node));
return static_cast<HTMLFormControlElement*>(node);
}
// This will catch anyone doing an unnecessary cast.
void toHTMLFormControlElement(const HTMLFormControlElement*);
} // namespace
#endif
|
