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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
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Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
263
dom/html/nsIConstraintValidation.cpp
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263
dom/html/nsIConstraintValidation.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIConstraintValidation.h"
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#include "nsAString.h"
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#include "nsGenericHTMLElement.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/dom/HTMLFieldSetElement.h"
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#include "mozilla/dom/HTMLInputElement.h"
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#include "mozilla/dom/ValidityState.h"
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#include "nsIFormControl.h"
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#include "nsContentUtils.h"
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#include "nsIFormSubmitObserver.h"
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#include "nsIObserverService.h"
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const uint16_t nsIConstraintValidation::sContentSpecifiedMaxLengthMessage = 256;
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using namespace mozilla;
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using namespace mozilla::dom;
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nsIConstraintValidation::nsIConstraintValidation()
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: mValidityBitField(0)
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// By default, all elements are subjects to constraint validation.
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, mBarredFromConstraintValidation(false)
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{
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}
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nsIConstraintValidation::~nsIConstraintValidation()
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{
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}
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mozilla::dom::ValidityState*
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nsIConstraintValidation::Validity()
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{
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if (!mValidity) {
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mValidity = new mozilla::dom::ValidityState(this);
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}
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return mValidity;
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}
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nsresult
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nsIConstraintValidation::GetValidity(nsIDOMValidityState** aValidity)
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{
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NS_ENSURE_ARG_POINTER(aValidity);
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NS_ADDREF(*aValidity = Validity());
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return NS_OK;
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}
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NS_IMETHODIMP
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nsIConstraintValidation::GetValidationMessage(nsAString& aValidationMessage)
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{
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aValidationMessage.Truncate();
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if (IsCandidateForConstraintValidation() && !IsValid()) {
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nsCOMPtr<nsIContent> content = do_QueryInterface(this);
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NS_ASSERTION(content, "This class should be inherited by HTML elements only!");
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nsAutoString authorMessage;
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content->GetAttr(kNameSpaceID_None, nsGkAtoms::x_moz_errormessage,
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authorMessage);
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if (!authorMessage.IsEmpty()) {
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aValidationMessage.Assign(authorMessage);
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if (aValidationMessage.Length() > sContentSpecifiedMaxLengthMessage) {
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aValidationMessage.Truncate(sContentSpecifiedMaxLengthMessage);
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}
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} else if (GetValidityState(VALIDITY_STATE_CUSTOM_ERROR)) {
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aValidationMessage.Assign(mCustomValidity);
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if (aValidationMessage.Length() > sContentSpecifiedMaxLengthMessage) {
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aValidationMessage.Truncate(sContentSpecifiedMaxLengthMessage);
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}
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} else if (GetValidityState(VALIDITY_STATE_TOO_LONG)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_TOO_LONG);
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} else if (GetValidityState(VALIDITY_STATE_TOO_SHORT)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_TOO_SHORT);
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} else if (GetValidityState(VALIDITY_STATE_VALUE_MISSING)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_VALUE_MISSING);
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} else if (GetValidityState(VALIDITY_STATE_TYPE_MISMATCH)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_TYPE_MISMATCH);
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} else if (GetValidityState(VALIDITY_STATE_PATTERN_MISMATCH)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_PATTERN_MISMATCH);
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} else if (GetValidityState(VALIDITY_STATE_RANGE_OVERFLOW)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_RANGE_OVERFLOW);
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} else if (GetValidityState(VALIDITY_STATE_RANGE_UNDERFLOW)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_RANGE_UNDERFLOW);
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} else if (GetValidityState(VALIDITY_STATE_STEP_MISMATCH)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_STEP_MISMATCH);
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} else if (GetValidityState(VALIDITY_STATE_BAD_INPUT)) {
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GetValidationMessage(aValidationMessage, VALIDITY_STATE_BAD_INPUT);
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} else {
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// There should not be other validity states.
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return NS_ERROR_UNEXPECTED;
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}
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} else {
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aValidationMessage.Truncate();
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}
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return NS_OK;
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}
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bool
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nsIConstraintValidation::CheckValidity()
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{
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if (!IsCandidateForConstraintValidation() || IsValid()) {
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return true;
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}
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nsCOMPtr<nsIContent> content = do_QueryInterface(this);
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NS_ASSERTION(content, "This class should be inherited by HTML elements only!");
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nsContentUtils::DispatchTrustedEvent(content->OwnerDoc(), content,
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NS_LITERAL_STRING("invalid"),
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false, true);
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return false;
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}
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nsresult
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nsIConstraintValidation::CheckValidity(bool* aValidity)
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{
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NS_ENSURE_ARG_POINTER(aValidity);
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*aValidity = CheckValidity();
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return NS_OK;
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}
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bool
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nsIConstraintValidation::ReportValidity()
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{
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if (!IsCandidateForConstraintValidation() || IsValid()) {
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return true;
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}
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nsCOMPtr<nsIContent> content = do_QueryInterface(this);
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MOZ_ASSERT(content, "This class should be inherited by HTML elements only!");
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bool defaultAction = true;
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nsContentUtils::DispatchTrustedEvent(content->OwnerDoc(), content,
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NS_LITERAL_STRING("invalid"),
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false, true, &defaultAction);
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if (!defaultAction) {
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return false;
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}
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nsCOMPtr<nsIObserverService> service =
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mozilla::services::GetObserverService();
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if (!service) {
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NS_WARNING("No observer service available!");
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return true;
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}
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nsCOMPtr<nsISimpleEnumerator> theEnum;
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nsresult rv = service->EnumerateObservers(NS_INVALIDFORMSUBMIT_SUBJECT,
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getter_AddRefs(theEnum));
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// Return true on error here because that's what we always did
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NS_ENSURE_SUCCESS(rv, true);
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bool hasObserver = false;
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rv = theEnum->HasMoreElements(&hasObserver);
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nsCOMPtr<nsIMutableArray> invalidElements =
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do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
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invalidElements->AppendElement(content, false);
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NS_ENSURE_SUCCESS(rv, true);
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nsCOMPtr<nsISupports> inst;
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nsCOMPtr<nsIFormSubmitObserver> observer;
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bool more = true;
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while (NS_SUCCEEDED(theEnum->HasMoreElements(&more)) && more) {
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theEnum->GetNext(getter_AddRefs(inst));
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observer = do_QueryInterface(inst);
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if (observer) {
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observer->NotifyInvalidSubmit(nullptr, invalidElements);
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}
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}
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if (content->IsHTMLElement(nsGkAtoms::input) &&
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nsContentUtils::IsFocusedContent(content)) {
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HTMLInputElement* inputElement =
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HTMLInputElement::FromContentOrNull(content);
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inputElement->UpdateValidityUIBits(true);
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}
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dom::Element* element = content->AsElement();
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element->UpdateState(true);
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return false;
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}
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void
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nsIConstraintValidation::SetValidityState(ValidityStateType aState,
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bool aValue)
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{
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bool previousValidity = IsValid();
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if (aValue) {
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mValidityBitField |= aState;
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} else {
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mValidityBitField &= ~aState;
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}
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// Inform the form and fieldset elements if our validity has changed.
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if (previousValidity != IsValid() && IsCandidateForConstraintValidation()) {
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nsCOMPtr<nsIFormControl> formCtrl = do_QueryInterface(this);
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NS_ASSERTION(formCtrl, "This interface should be used by form elements!");
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HTMLFormElement* form =
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static_cast<HTMLFormElement*>(formCtrl->GetFormElement());
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if (form) {
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form->UpdateValidity(IsValid());
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}
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HTMLFieldSetElement* fieldSet = formCtrl->GetFieldSet();
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if (fieldSet) {
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fieldSet->UpdateValidity(IsValid());
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}
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}
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}
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void
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nsIConstraintValidation::SetCustomValidity(const nsAString& aError)
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{
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mCustomValidity.Assign(aError);
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SetValidityState(VALIDITY_STATE_CUSTOM_ERROR, !mCustomValidity.IsEmpty());
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}
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void
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nsIConstraintValidation::SetBarredFromConstraintValidation(bool aBarred)
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{
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bool previousBarred = mBarredFromConstraintValidation;
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mBarredFromConstraintValidation = aBarred;
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// Inform the form and fieldset elements if our status regarding constraint
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// validation is going to change.
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if (!IsValid() && previousBarred != mBarredFromConstraintValidation) {
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nsCOMPtr<nsIFormControl> formCtrl = do_QueryInterface(this);
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NS_ASSERTION(formCtrl, "This interface should be used by form elements!");
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// If the element is going to be barred from constraint validation, we can
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// inform the form and fieldset that we are now valid. Otherwise, we are now
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// invalid.
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HTMLFormElement* form =
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static_cast<HTMLFormElement*>(formCtrl->GetFormElement());
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if (form) {
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form->UpdateValidity(aBarred);
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}
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HTMLFieldSetElement* fieldSet = formCtrl->GetFieldSet();
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if (fieldSet) {
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fieldSet->UpdateValidity(aBarred);
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}
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}
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}
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