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/* -*- 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
#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);
}
}
}