dom/html/ConstraintValidation.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "ConstraintValidation.h"
   8
   9 #include "mozilla/ErrorResult.h"
  10 #include "nsAString.h"
  11 #include "nsIContent.h"
  12
  13 namespace mozilla::dom {
  14
  15 void ConstraintValidation::GetValidationMessage(nsAString& aValidationMessage,
  16                                                 ErrorResult& aError) {
  17   aValidationMessage.Truncate();
  18
  19   if (IsCandidateForConstraintValidation() && !IsValid()) {
  20     if (GetValidityState(VALIDITY_STATE_CUSTOM_ERROR)) {
  21       aValidationMessage.Assign(mCustomValidity);
  22       if (aValidationMessage.Length() > sContentSpecifiedMaxLengthMessage) {
  23         aValidationMessage.Truncate(sContentSpecifiedMaxLengthMessage);
  24       }
  25     } else if (GetValidityState(VALIDITY_STATE_TOO_LONG)) {
  26       GetValidationMessage(aValidationMessage, VALIDITY_STATE_TOO_LONG);
  27     } else if (GetValidityState(VALIDITY_STATE_TOO_SHORT)) {
  28       GetValidationMessage(aValidationMessage, VALIDITY_STATE_TOO_SHORT);
  29     } else if (GetValidityState(VALIDITY_STATE_VALUE_MISSING)) {
  30       GetValidationMessage(aValidationMessage, VALIDITY_STATE_VALUE_MISSING);
  31     } else if (GetValidityState(VALIDITY_STATE_TYPE_MISMATCH)) {
  32       GetValidationMessage(aValidationMessage, VALIDITY_STATE_TYPE_MISMATCH);
  33     } else if (GetValidityState(VALIDITY_STATE_PATTERN_MISMATCH)) {
  34       GetValidationMessage(aValidationMessage, VALIDITY_STATE_PATTERN_MISMATCH);
  35     } else if (GetValidityState(VALIDITY_STATE_RANGE_OVERFLOW)) {
  36       GetValidationMessage(aValidationMessage, VALIDITY_STATE_RANGE_OVERFLOW);
  37     } else if (GetValidityState(VALIDITY_STATE_RANGE_UNDERFLOW)) {
  38       GetValidationMessage(aValidationMessage, VALIDITY_STATE_RANGE_UNDERFLOW);
  39     } else if (GetValidityState(VALIDITY_STATE_STEP_MISMATCH)) {
  40       GetValidationMessage(aValidationMessage, VALIDITY_STATE_STEP_MISMATCH);
  41     } else if (GetValidityState(VALIDITY_STATE_BAD_INPUT)) {
  42       GetValidationMessage(aValidationMessage, VALIDITY_STATE_BAD_INPUT);
  43     } else {
  44       // There should not be other validity states.
  45       aError.Throw(NS_ERROR_UNEXPECTED);
  46       return;
  47     }
  48   } else {
  49     aValidationMessage.Truncate();
  50   }
  51 }
  52
  53 bool ConstraintValidation::CheckValidity() {
  54   nsCOMPtr<nsIContent> content = do_QueryInterface(this);
  55   MOZ_ASSERT(content, "This class should be inherited by HTML elements only!");
  56   return nsIConstraintValidation::CheckValidity(*content);
  57 }
  58
  59 ConstraintValidation::ConstraintValidation() : nsIConstraintValidation() {}
  60
  61 void ConstraintValidation::SetCustomValidity(const nsAString& aError) {
  62   mCustomValidity.Assign(aError);
  63   SetValidityState(VALIDITY_STATE_CUSTOM_ERROR, !mCustomValidity.IsEmpty());
  64 }
  65
  66 }  // namespace mozilla::dom