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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIConstraintValidation.h"
#include "nsGenericHTMLElement.h"
#include "mozilla/dom/CustomEvent.h"
#include "mozilla/dom/HTMLFormElement.h"
#include "mozilla/dom/HTMLFieldSetElement.h"
#include "mozilla/dom/HTMLInputElement.h"
#include "mozilla/dom/ValidityState.h"
#include "nsIFormControl.h"
#include "nsISimpleEnumerator.h"
#include "nsContentUtils.h"
const uint16_t nsIConstraintValidation::sContentSpecifiedMaxLengthMessage = 256;
using namespace mozilla;
using namespace mozilla::dom;
nsIConstraintValidation::nsIConstraintValidation()
: mValidityBitField(0)
// By default, all elements are subjects to constraint validation.
,
mBarredFromConstraintValidation(false) {}
nsIConstraintValidation::~nsIConstraintValidation() = default;
mozilla::dom::ValidityState* nsIConstraintValidation::Validity() {
if (!mValidity) {
mValidity = new mozilla::dom::ValidityState(this);
}
return mValidity;
}
bool nsIConstraintValidation::CheckValidity(nsIContent& aEventTarget,
bool* aEventDefaultAction) const {
if (!IsCandidateForConstraintValidation() || IsValid()) {
return true;
}
nsContentUtils::DispatchTrustedEvent(
aEventTarget.OwnerDoc(), &aEventTarget, u"invalid"_ns, CanBubble::eNo,
Cancelable::eYes, Composed::eDefault, aEventDefaultAction);
return false;
}
bool nsIConstraintValidation::ReportValidity() {
nsCOMPtr<Element> element = do_QueryInterface(this);
MOZ_ASSERT(element, "This class should be inherited by HTML elements only!");
bool defaultAction = true;
if (CheckValidity(*element, &defaultAction)) {
return true;
}
if (!defaultAction) {
return false;
}
AutoTArray<RefPtr<Element>, 1> invalidElements;
invalidElements.AppendElement(element);
AutoJSAPI jsapi;
if (!jsapi.Init(element->GetOwnerGlobal())) {
return false;
}
JS::Rooted<JS::Value> detail(jsapi.cx());
if (!ToJSValue(jsapi.cx(), invalidElements, &detail)) {
return false;
}
RefPtr<CustomEvent> event =
NS_NewDOMCustomEvent(element->OwnerDoc(), nullptr, nullptr);
event->InitCustomEvent(jsapi.cx(), u"MozInvalidForm"_ns,
/* CanBubble */ true,
/* Cancelable */ true, detail);
event->SetTrusted(true);
event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
element->DispatchEvent(*event);
return false;
}
void nsIConstraintValidation::SetValidityState(ValidityStateType aState,
bool aValue) {
bool previousValidity = IsValid();
if (aValue) {
mValidityBitField |= aState;
} else {
mValidityBitField &= ~aState;
}
// Inform the form and fieldset elements if our validity has changed.
if (previousValidity != IsValid() && IsCandidateForConstraintValidation()) {
nsCOMPtr<nsIFormControl> formCtrl = do_QueryInterface(this);
NS_ASSERTION(formCtrl, "This interface should be used by form elements!");
if (HTMLFormElement* form = formCtrl->GetForm()) {
form->UpdateValidity(IsValid());
}
if (HTMLFieldSetElement* fieldSet = formCtrl->GetFieldSet()) {
fieldSet->UpdateValidity(IsValid());
}
}
}
void nsIConstraintValidation::SetBarredFromConstraintValidation(bool aBarred) {
bool previousBarred = mBarredFromConstraintValidation;
mBarredFromConstraintValidation = aBarred;
// Inform the form and fieldset elements if our status regarding constraint
// validation is going to change.
if (!IsValid() && previousBarred != mBarredFromConstraintValidation) {
nsCOMPtr<nsIFormControl> formCtrl = do_QueryInterface(this);
NS_ASSERTION(formCtrl, "This interface should be used by form elements!");
// If the element is going to be barred from constraint validation, we can
// inform the form and fieldset that we are now valid. Otherwise, we are now
// invalid.
if (HTMLFormElement* form = formCtrl->GetForm()) {
form->UpdateValidity(aBarred);
}
HTMLFieldSetElement* fieldSet = formCtrl->GetFieldSet();
if (fieldSet) {
fieldSet->UpdateValidity(aBarred);
}
}
}
|
