Quelle HTMLInputElement.cpp Sprache: C

/* -*- 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 "mozilla/dom/HTMLInputElement.h"

#include "mozilla/ArrayUtils.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/Components.h"
#include "mozilla/dom/AutocompleteInfoBinding.h"
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/CustomEvent.h"
#include "mozilla/dom/Directory.h"
#include "mozilla/dom/DocumentOrShadowRoot.h"
#include "mozilla/dom/ElementBinding.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/FormData.h"
#include "mozilla/dom/GetFilesHelper.h"
#include "mozilla/dom/NumericInputTypes.h"
#include "mozilla/dom/WindowContext.h"
#include "mozilla/dom/InputType.h"
#include "mozilla/dom/UserActivation.h"
#include "mozilla/dom/MouseEvent.h"
#include "mozilla/dom/MutationEventBinding.h"
#include "mozilla/dom/WheelEventBinding.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/ImageInputTelemetry.h"
#include "mozilla/Maybe.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/PresShell.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/StaticPrefs_signon.h"
#include "mozilla/TextUtils.h"
#include "mozilla/Try.h"
#include "mozilla/Unused.h"
#include "nsAttrValueInlines.h"
#include "nsCRTGlue.h"
#include "nsIFilePicker.h"
#include "nsNetUtil.h"
#include "nsQueryObject.h"

#include "HTMLDataListElement.h"
#include "HTMLFormSubmissionConstants.h"
#include "mozilla/Telemetry.h"
#include "nsBaseCommandController.h"
#include "nsIStringBundle.h"
#include "nsFocusManager.h"
#include "nsColorControlFrame.h"
#include "nsFileControlFrame.h"
#include "nsNumberControlFrame.h"
#include "nsSearchControlFrame.h"
#include "nsPIDOMWindow.h"
#include "nsRepeatService.h"
#include "mozilla/dom/ProgressEvent.h"
#include "nsGkAtoms.h"
#include "nsStyleConsts.h"
#include "nsPresContext.h"
#include "nsIFormControl.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/HTMLDataListElement.h"
#include "mozilla/dom/HTMLOptionElement.h"
#include "nsIFrame.h"
#include "nsRangeFrame.h"
#include "nsError.h"
#include "nsIEditor.h"
#include "nsIPromptCollection.h"

#include "mozilla/PresState.h"
#include "nsLinebreakConverter.h"  //to strip out carriage returns
#include "nsReadableUtils.h"
#include "nsUnicharUtils.h"
#include "nsLayoutUtils.h"
#include "nsVariant.h"

#include "mozilla/ContentEvents.h"
#include "mozilla/EventDispatcher.h"
#include "mozilla/MappedDeclarationsBuilder.h"
#include "mozilla/InternalMutationEvent.h"
#include "mozilla/TextControlState.h"
#include "mozilla/TextEditor.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"

#include <algorithm>

// input type=radio
#include "mozilla/dom/RadioGroupContainer.h"
#include "nsIRadioVisitor.h"
#include "nsRadioVisitor.h"

// input type=file
#include "mozilla/dom/FileSystemEntry.h"
#include "mozilla/dom/FileSystem.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FileList.h"
#include "nsIFile.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIContentPrefService2.h"
#include "nsIMIMEService.h"
#include "nsIObserverService.h"

// input type=image
#include "nsImageLoadingContent.h"
#include "imgRequestProxy.h"

#include "mozAutoDocUpdate.h"
#include "nsContentCreatorFunctions.h"
#include "nsContentUtils.h"
#include "mozilla/dom/DirectionalityUtils.h"

#include "mozilla/LookAndFeel.h"
#include "mozilla/Preferences.h"
#include "mozilla/MathAlgorithms.h"

#include <limits>

#include "nsIColorPicker.h"
#include "nsIStringEnumerator.h"
#include "HTMLSplitOnSpacesTokenizer.h"
#include "nsIMIMEInfo.h"
#include "nsFrameSelection.h"
#include "nsXULControllers.h"

// input type=date
#include "js/Date.h"

NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Input)

// XXX align=left, hspace, vspace, border? other nav4 attrs

namespace mozilla::dom {

// First bits are needed for the control type.
#define NS_OUTER_ACTIVATE_EVENT (1 << 9)
#define NS_ORIGINAL_CHECKED_VALUE (1 << 10)
// (1 << 11 is unused)
#define NS_ORIGINAL_INDETERMINATE_VALUE (1 << 12)
#define NS_PRE_HANDLE_BLUR_EVENT (1 << 13)
#define NS_IN_SUBMIT_CLICK (1 << 15)
#define NS_CONTROL_TYPE(bits)                                              \
  ((bits) & ~(NS_OUTER_ACTIVATE_EVENT | NS_ORIGINAL_CHECKED_VALUE |        \
              NS_ORIGINAL_INDETERMINATE_VALUE | NS_PRE_HANDLE_BLUR_EVENT | \
              NS_IN_SUBMIT_CLICK))

// whether textfields should be selected once focused:
//  -1: no, 1: yes, 0: uninitialized
static int32_t gSelectTextFieldOnFocus;
UploadLastDir* HTMLInputElement::gUploadLastDir;

static const nsAttrValue::EnumTable kInputTypeTable[] = {
    {"button", FormControlType::InputButton},
    {"checkbox", FormControlType::InputCheckbox},
    {"color", FormControlType::InputColor},
    {"date", FormControlType::InputDate},
    {"datetime-local", FormControlType::InputDatetimeLocal},
    {"email", FormControlType::InputEmail},
    {"file", FormControlType::InputFile},
    {"hidden", FormControlType::InputHidden},
    {"reset", FormControlType::InputReset},
    {"image", FormControlType::InputImage},
    {"month", FormControlType::InputMonth},
    {"number", FormControlType::InputNumber},
    {"password", FormControlType::InputPassword},
    {"radio", FormControlType::InputRadio},
    {"range", FormControlType::InputRange},
    {"search", FormControlType::InputSearch},
    {"submit", FormControlType::InputSubmit},
    {"tel", FormControlType::InputTel},
    {"time", FormControlType::InputTime},
    {"url", FormControlType::InputUrl},
    {"week", FormControlType::InputWeek},
    // "text" must be last for ParseAttribute to work right.  If you add things
    // before it, please update kInputDefaultType.
    {"text", FormControlType::InputText},
    {nullptr, 0}};

// Default type is 'text'.
static const nsAttrValue::EnumTable* kInputDefaultType =
    &kInputTypeTable[std::size(kInputTypeTable) - 2];

static const nsAttrValue::EnumTable kCaptureTable[] = {
    {"user", nsIFilePicker::captureUser},
    {"environment", nsIFilePicker::captureEnv},
    {"", nsIFilePicker::captureDefault},
    {nullptr, nsIFilePicker::captureNone}};

static const nsAttrValue::EnumTable* kCaptureDefault = &kCaptureTable[2];

using namespace blink;

constexpr Decimal HTMLInputElement::kStepScaleFactorDate(86400000_d);
constexpr Decimal HTMLInputElement::kStepScaleFactorNumberRange(1_d);
constexpr Decimal HTMLInputElement::kStepScaleFactorTime(1000_d);
constexpr Decimal HTMLInputElement::kStepScaleFactorMonth(1_d);
constexpr Decimal HTMLInputElement::kStepScaleFactorWeek(7 * 86400000_d);
constexpr Decimal HTMLInputElement::kDefaultStepBase(0_d);
constexpr Decimal HTMLInputElement::kDefaultStepBaseWeek(-259200000_d);
constexpr Decimal HTMLInputElement::kDefaultStep(1_d);
constexpr Decimal HTMLInputElement::kDefaultStepTime(60_d);
constexpr Decimal HTMLInputElement::kStepAny(0_d);

const double HTMLInputElement::kMinimumYear = 1;
const double HTMLInputElement::kMaximumYear = 275760;
const double HTMLInputElement::kMaximumWeekInMaximumYear = 37;
const double HTMLInputElement::kMaximumDayInMaximumYear = 13;
const double HTMLInputElement::kMaximumMonthInMaximumYear = 9;
const double HTMLInputElement::kMaximumWeekInYear = 53;
const double HTMLInputElement::kMsPerDay = 24 * 60 * 60 * 1000;

// An helper class for the dispatching of the 'change' event.
// This class is used when the FilePicker finished its task (or when files and
// directories are set by some chrome/test only method).
// The task of this class is to postpone the dispatching of 'change' and 'input'
// events at the end of the exploration of the directories.
class DispatchChangeEventCallback final : public GetFilesCallback {
public:
  explicit DispatchChangeEventCallback(HTMLInputElement* aInputElement)
      : mInputElement(aInputElement) {
    MOZ_ASSERT(aInputElement);
  }

  virtual void Callback(
      nsresult aStatus,
      const FallibleTArray<RefPtr<BlobImpl>>& aBlobImpls) override {
    if (!mInputElement->GetOwnerGlobal()) {
      return;
    }

    nsTArray<OwningFileOrDirectory> array;
    for (uint32_t i = 0; i < aBlobImpls.Length(); ++i) {
      OwningFileOrDirectory* element = array.AppendElement();
      RefPtr<File> file =
          File::Create(mInputElement->GetOwnerGlobal(), aBlobImpls[i]);
      if (NS_WARN_IF(!file)) {
        return;
      }

      element->SetAsFile() = file;
    }

    mInputElement->SetFilesOrDirectories(array, true);
    Unused << NS_WARN_IF(NS_FAILED(DispatchEvents()));
  }

  MOZ_CAN_RUN_SCRIPT_BOUNDARY
  nsresult DispatchEvents() {
    RefPtr<HTMLInputElement> inputElement(mInputElement);
    nsresult rv = nsContentUtils::DispatchInputEvent(inputElement);
    NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to dispatch input event");
    mInputElement->SetUserInteracted(true);
    rv = nsContentUtils::DispatchTrustedEvent(mInputElement->OwnerDoc(),
                                              mInputElement, u"change"_ns,
                                              CanBubble::eYes, Cancelable::eNo);

    return rv;
  }

private:
  RefPtr<HTMLInputElement> mInputElement;
};

struct HTMLInputElement::FileData {
  /**
   * The value of the input if it is a file input. This is the list of files or
   * directories DOM objects used when uploading a file. It is vital that this
   * is kept separate from mValue so that it won't be possible to 'leak' the
   * value from a text-input to a file-input. Additionally, the logic for this
   * value is kept as simple as possible to avoid accidental errors where the
   * wrong filename is used.  Therefor the list of filenames is always owned by
   * this member, never by the frame. Whenever the frame wants to change the
   * filename it has to call SetFilesOrDirectories to update this member.
   */
  nsTArray<OwningFileOrDirectory> mFilesOrDirectories;

  RefPtr<GetFilesHelper> mGetFilesRecursiveHelper;
  RefPtr<GetFilesHelper> mGetFilesNonRecursiveHelper;

  /**
   * Hack for bug 1086684: Stash the .value when we're a file picker.
   */
  nsString mFirstFilePath;

  RefPtr<FileList> mFileList;
  Sequence<RefPtr<FileSystemEntry>> mEntries;

  nsString mStaticDocFileList;

  void ClearGetFilesHelpers() {
    if (mGetFilesRecursiveHelper) {
      mGetFilesRecursiveHelper->Unlink();
      mGetFilesRecursiveHelper = nullptr;
    }

    if (mGetFilesNonRecursiveHelper) {
      mGetFilesNonRecursiveHelper->Unlink();
      mGetFilesNonRecursiveHelper = nullptr;
    }
  }

  // Cycle Collection support.
  void Traverse(nsCycleCollectionTraversalCallback& cb) {
    FileData* tmp = this;
    NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFilesOrDirectories)
    NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFileList)
    NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mEntries)
    if (mGetFilesRecursiveHelper) {
      mGetFilesRecursiveHelper->Traverse(cb);
    }

    if (mGetFilesNonRecursiveHelper) {
      mGetFilesNonRecursiveHelper->Traverse(cb);
    }
  }

  void Unlink() {
    FileData* tmp = this;
    NS_IMPL_CYCLE_COLLECTION_UNLINK(mFilesOrDirectories)
    NS_IMPL_CYCLE_COLLECTION_UNLINK(mFileList)
    NS_IMPL_CYCLE_COLLECTION_UNLINK(mEntries)
    ClearGetFilesHelpers();
  }
};

HTMLInputElement::nsFilePickerShownCallback::nsFilePickerShownCallback(
    HTMLInputElement* aInput, nsIFilePicker* aFilePicker)
    : mFilePicker(aFilePicker), mInput(aInput) {}

NS_IMPL_ISUPPORTS(UploadLastDir::ContentPrefCallback, nsIContentPrefCallback2)

NS_IMETHODIMP
UploadLastDir::ContentPrefCallback::HandleCompletion(uint16_t aReason) {
  nsCOMPtr<nsIFile> localFile;
  nsAutoString prefStr;

  if (aReason == nsIContentPrefCallback2::COMPLETE_ERROR || !mResult) {
    Preferences::GetString("dom.input.fallbackUploadDir", prefStr);
  }

  if (prefStr.IsEmpty() && mResult) {
    nsCOMPtr<nsIVariant> pref;
    mResult->GetValue(getter_AddRefs(pref));
    pref->GetAsAString(prefStr);
  }

  if (!prefStr.IsEmpty()) {
    nsresult rv = NS_NewLocalFile(prefStr, getter_AddRefs(localFile));
    Unused << NS_WARN_IF(NS_FAILED(rv));
  }

  if (localFile) {
    mFilePicker->SetDisplayDirectory(localFile);
  } else {
    // If no custom directory was set through the pref, default to
    // "desktop" directory for each platform.
    mFilePicker->SetDisplaySpecialDirectory(
        NS_LITERAL_STRING_FROM_CSTRING(NS_OS_DESKTOP_DIR));
  }

  mFilePicker->Open(mFpCallback);
  return NS_OK;
}

NS_IMETHODIMP
UploadLastDir::ContentPrefCallback::HandleResult(nsIContentPref* pref) {
  mResult = pref;
  return NS_OK;
}

NS_IMETHODIMP
UploadLastDir::ContentPrefCallback::HandleError(nsresult error) {
  // HandleCompletion is always called (even with HandleError was called),
  // so we don't need to do anything special here.
  return NS_OK;
}

namespace {

/**
* This may return nullptr if the DOM File's implementation of
* File::mozFullPathInternal does not successfully return a non-empty
* string that is a valid path. This can happen on Firefox OS, for example,
* where the file picker can create Blobs.
*/
static already_AddRefed<nsIFile> LastUsedDirectory(
    const OwningFileOrDirectory& aData) {
  if (aData.IsFile()) {
    nsAutoString path;
    ErrorResult error;
    aData.GetAsFile()->GetMozFullPathInternal(path, error);
    if (error.Failed() || path.IsEmpty()) {
      error.SuppressException();
      return nullptr;
    }

    nsCOMPtr<nsIFile> localFile;
    nsresult rv = NS_NewLocalFile(path, getter_AddRefs(localFile));
    if (NS_WARN_IF(NS_FAILED(rv))) {
      return nullptr;
    }

    nsCOMPtr<nsIFile> parentFile;
    rv = localFile->GetParent(getter_AddRefs(parentFile));
    if (NS_WARN_IF(NS_FAILED(rv))) {
      return nullptr;
    }

    return parentFile.forget();
  }

  MOZ_ASSERT(aData.IsDirectory());

  nsCOMPtr<nsIFile> localFile = aData.GetAsDirectory()->GetInternalNsIFile();
  MOZ_ASSERT(localFile);

  return localFile.forget();
}

void GetDOMFileOrDirectoryName(const OwningFileOrDirectory& aData,
                               nsAString& aName) {
  if (aData.IsFile()) {
    aData.GetAsFile()->GetName(aName);
  } else {
    MOZ_ASSERT(aData.IsDirectory());
    ErrorResult rv;
    aData.GetAsDirectory()->GetName(aName, rv);
    if (NS_WARN_IF(rv.Failed())) {
      rv.SuppressException();
    }
  }
}

void GetDOMFileOrDirectoryPath(const OwningFileOrDirectory& aData,
                               nsAString& aPath, ErrorResult& aRv) {
  if (aData.IsFile()) {
    aData.GetAsFile()->GetMozFullPathInternal(aPath, aRv);
  } else {
    MOZ_ASSERT(aData.IsDirectory());
    aData.GetAsDirectory()->GetFullRealPath(aPath);
  }
}

}  // namespace

NS_IMETHODIMP
HTMLInputElement::nsFilePickerShownCallback::Done(
    nsIFilePicker::ResultCode aResult) {
  mInput->PickerClosed();

  if (aResult == nsIFilePicker::returnCancel) {
    RefPtr<HTMLInputElement> inputElement(mInput);
    return nsContentUtils::DispatchTrustedEvent(
        inputElement->OwnerDoc(), inputElement, u"cancel"_ns, CanBubble::eYes,
        Cancelable::eNo);
  }

  mInput->OwnerDoc()->NotifyUserGestureActivation();

  nsIFilePicker::Mode mode;
  mFilePicker->GetMode(&mode);

  // Collect new selected filenames
  nsTArray<OwningFileOrDirectory> newFilesOrDirectories;
  if (mode == nsIFilePicker::modeOpenMultiple) {
    nsCOMPtr<nsISimpleEnumerator> iter;
    nsresult rv =
        mFilePicker->GetDomFileOrDirectoryEnumerator(getter_AddRefs(iter));
    NS_ENSURE_SUCCESS(rv, rv);

    if (!iter) {
      return NS_OK;
    }

    nsCOMPtr<nsISupports> tmp;
    bool hasMore = true;

    while (NS_SUCCEEDED(iter->HasMoreElements(&hasMore)) && hasMore) {
      iter->GetNext(getter_AddRefs(tmp));
      RefPtr<Blob> domBlob = do_QueryObject(tmp);
      MOZ_ASSERT(domBlob,
                 "Null file object from FilePicker's file enumerator?");
      if (!domBlob) {
        continue;
      }

      OwningFileOrDirectory* element = newFilesOrDirectories.AppendElement();
      element->SetAsFile() = domBlob->ToFile();

      ImageInputTelemetry::MaybeRecordFilePickerImageInputTelemetry(domBlob);
    }
  } else {
    MOZ_ASSERT(mode == nsIFilePicker::modeOpen ||
               mode == nsIFilePicker::modeGetFolder);
    nsCOMPtr<nsISupports> tmp;
    nsresult rv = mFilePicker->GetDomFileOrDirectory(getter_AddRefs(tmp));
    NS_ENSURE_SUCCESS(rv, rv);

    if (!tmp) {
      return NS_OK;
    }

    // Show a prompt to get user confirmation before allowing folder access.
    // This is to prevent sites from tricking the user into uploading files.
    // See Bug 1338637.
    if (mode == nsIFilePicker::modeGetFolder) {
      nsCOMPtr<nsIPromptCollection> prompter =
          do_GetService("@mozilla.org/embedcomp/prompt-collection;1");
      if (!prompter) {
        return NS_ERROR_NOT_AVAILABLE;
      }

      bool confirmed = false;
      BrowsingContext* bc = mInput->OwnerDoc()->GetBrowsingContext();

      // Get directory name
      RefPtr<Directory> directory = static_cast<Directory*>(tmp.get());
      nsAutoString directoryName;
      ErrorResult error;
      directory->GetName(directoryName, error);
      if (NS_WARN_IF(error.Failed())) {
        return error.StealNSResult();
      }

      rv = prompter->ConfirmFolderUpload(bc, directoryName, &confirmed);
      NS_ENSURE_SUCCESS(rv, rv);
      if (!confirmed) {
        // User aborted upload
        return NS_OK;
      }
    }

    RefPtr<Blob> blob = do_QueryObject(tmp);
    if (blob) {
      RefPtr<File> file = blob->ToFile();
      MOZ_ASSERT(file);

      OwningFileOrDirectory* element = newFilesOrDirectories.AppendElement();
      element->SetAsFile() = file;

      ImageInputTelemetry::MaybeRecordFilePickerImageInputTelemetry(blob);
    } else if (tmp) {
      RefPtr<Directory> directory = static_cast<Directory*>(tmp.get());
      OwningFileOrDirectory* element = newFilesOrDirectories.AppendElement();
      element->SetAsDirectory() = directory;
    }
  }

  if (newFilesOrDirectories.IsEmpty()) {
    return NS_OK;
  }

  // Store the last used directory using the content pref service:
  nsCOMPtr<nsIFile> lastUsedDir = LastUsedDirectory(newFilesOrDirectories[0]);

  if (lastUsedDir) {
    HTMLInputElement::gUploadLastDir->StoreLastUsedDirectory(mInput->OwnerDoc(),
                                                             lastUsedDir);
  }

  // The text control frame (if there is one) isn't going to send a change
  // event because it will think this is done by a script.
  // So, we can safely send one by ourself.
  mInput->SetFilesOrDirectories(newFilesOrDirectories, true);

  // mInput(HTMLInputElement) has no scriptGlobalObject, don't create
  // DispatchChangeEventCallback
  if (!mInput->GetOwnerGlobal()) {
    return NS_OK;
  }
  RefPtr<DispatchChangeEventCallback> dispatchChangeEventCallback =
      new DispatchChangeEventCallback(mInput);

  if (StaticPrefs::dom_webkitBlink_dirPicker_enabled() &&
      mInput->HasAttr(nsGkAtoms::webkitdirectory)) {
    ErrorResult error;
    GetFilesHelper* helper = mInput->GetOrCreateGetFilesHelper(true, error);
    if (NS_WARN_IF(error.Failed())) {
      return error.StealNSResult();
    }

    helper->AddCallback(dispatchChangeEventCallback);
    return NS_OK;
  }

  return dispatchChangeEventCallback->DispatchEvents();
}

NS_IMPL_ISUPPORTS(HTMLInputElement::nsFilePickerShownCallback,
                  nsIFilePickerShownCallback)

class nsColorPickerShownCallback final : public nsIColorPickerShownCallback {
  ~nsColorPickerShownCallback() = default;

public:
  nsColorPickerShownCallback(HTMLInputElement* aInput,
                             nsIColorPicker* aColorPicker)
      : mInput(aInput), mColorPicker(aColorPicker), mValueChanged(false) {}

  NS_DECL_ISUPPORTS

  MOZ_CAN_RUN_SCRIPT_BOUNDARY
  NS_IMETHOD Update(const nsAString& aColor) override;
  MOZ_CAN_RUN_SCRIPT_BOUNDARY
  NS_IMETHOD Done(const nsAString& aColor) override;

private:
  /**
   * Updates the internals of the object using aColor as the new value.
   * If aTrustedUpdate is true, it will consider that aColor is a new value.
   * Otherwise, it will check that aColor is different from the current value.
   */
  MOZ_CAN_RUN_SCRIPT
  nsresult UpdateInternal(const nsAString& aColor, bool aTrustedUpdate);

  RefPtr<HTMLInputElement> mInput;
  nsCOMPtr<nsIColorPicker> mColorPicker;
  bool mValueChanged;
};

nsresult nsColorPickerShownCallback::UpdateInternal(const nsAString& aColor,
                                                    bool aTrustedUpdate) {
  bool valueChanged = false;
  nsAutoString oldValue;
  if (aTrustedUpdate) {
    mInput->OwnerDoc()->NotifyUserGestureActivation();
    valueChanged = true;
  } else {
    mInput->GetValue(oldValue, CallerType::System);
  }

  mInput->SetValue(aColor, CallerType::System, IgnoreErrors());

  if (!aTrustedUpdate) {
    nsAutoString newValue;
    mInput->GetValue(newValue, CallerType::System);
    if (!oldValue.Equals(newValue)) {
      valueChanged = true;
    }
  }

  if (!valueChanged) {
    return NS_OK;
  }

  mValueChanged = true;
  RefPtr<HTMLInputElement> input(mInput);
  DebugOnly<nsresult> rvIgnored = nsContentUtils::DispatchInputEvent(input);
  NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
                       "Failed to dispatch input event");
  return NS_OK;
}

NS_IMETHODIMP
nsColorPickerShownCallback::Update(const nsAString& aColor) {
  return UpdateInternal(aColor, true);
}

NS_IMETHODIMP
nsColorPickerShownCallback::Done(const nsAString& aColor) {
  /**
   * When Done() is called, we might be at the end of a serie of Update() calls
   * in which case mValueChanged is set to true and a change event will have to
   * be fired but we might also be in a one shot Done() call situation in which
   * case we should fire a change event iif the value actually changed.
   * UpdateInternal(bool) is taking care of that logic for us.
   */
  nsresult rv = NS_OK;

  mInput->PickerClosed();

  if (!aColor.IsEmpty()) {
    UpdateInternal(aColor, false);
  }

  if (mValueChanged) {
    mInput->SetUserInteracted(true);
    rv = nsContentUtils::DispatchTrustedEvent(
        mInput->OwnerDoc(), static_cast<Element*>(mInput.get()), u"change"_ns,
        CanBubble::eYes, Cancelable::eNo);
  }

  return rv;
}

NS_IMPL_ISUPPORTS(nsColorPickerShownCallback, nsIColorPickerShownCallback)

static bool IsPickerBlocked(Document* aDoc) {
  if (aDoc->ConsumeTransientUserGestureActivation()) {
    return false;
  }

  nsContentUtils::ReportToConsole(nsIScriptError::warningFlag, "DOM"_ns, aDoc,
                                  nsContentUtils::eDOM_PROPERTIES,
                                  "InputPickerBlockedNoUserActivation");
  return true;
}

nsTArray<nsString> HTMLInputElement::GetColorsFromList() {
  RefPtr<HTMLDataListElement> dataList = GetList();
  if (!dataList) {
    return {};
  }

  nsTArray<nsString> colors;

  RefPtr<nsContentList> options = dataList->Options();
  uint32_t length = options->Length(true);
  for (uint32_t i = 0; i < length; ++i) {
    auto* option = HTMLOptionElement::FromNodeOrNull(options->Item(i, false));
    if (!option) {
      continue;
    }

    nsString value;
    option->GetValue(value);
    if (IsValidSimpleColor(value)) {
      ToLowerCase(value);
      colors.AppendElement(value);
    }
  }

  return colors;
}

nsresult HTMLInputElement::InitColorPicker() {
  MOZ_ASSERT(IsMutable());

  if (mPickerRunning) {
    NS_WARNING("Just one nsIColorPicker is allowed");
    return NS_ERROR_FAILURE;
  }

  nsCOMPtr<Document> doc = OwnerDoc();

  RefPtr<BrowsingContext> bc = doc->GetBrowsingContext();
  if (!bc) {
    return NS_ERROR_FAILURE;
  }

  if (IsPickerBlocked(doc)) {
    return NS_OK;
  }

  // Get Loc title
  nsAutoString title;
  nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
                                     "ColorPicker", title);

  nsCOMPtr<nsIColorPicker> colorPicker =
      do_CreateInstance("@mozilla.org/colorpicker;1");
  if (!colorPicker) {
    return NS_ERROR_FAILURE;
  }

  nsAutoString initialValue;
  GetNonFileValueInternal(initialValue);
  nsTArray<nsString> colors = GetColorsFromList();
  nsresult rv = colorPicker->Init(bc, title, initialValue, colors);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIColorPickerShownCallback> callback =
      new nsColorPickerShownCallback(this, colorPicker);

  rv = colorPicker->Open(callback);
  if (NS_SUCCEEDED(rv)) {
    mPickerRunning = true;
    SetStates(ElementState::OPEN, true);
  }

  return rv;
}

nsresult HTMLInputElement::InitFilePicker(FilePickerType aType) {
  MOZ_ASSERT(IsMutable());

  if (mPickerRunning) {
    NS_WARNING("Just one nsIFilePicker is allowed");
    return NS_ERROR_FAILURE;
  }

  // Get parent nsPIDOMWindow object.
  nsCOMPtr<Document> doc = OwnerDoc();

  RefPtr<BrowsingContext> bc = doc->GetBrowsingContext();
  if (!bc) {
    return NS_ERROR_FAILURE;
  }

  if (IsPickerBlocked(doc)) {
    return NS_OK;
  }

  // Get Loc title
  nsAutoString title;
  nsAutoString okButtonLabel;
  if (aType == FILE_PICKER_DIRECTORY) {
    nsContentUtils::GetMaybeLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
                                            "DirectoryUpload", doc, title);

    nsContentUtils::GetMaybeLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
                                            "DirectoryPickerOkButtonLabel", doc,
                                            okButtonLabel);
  } else {
    nsContentUtils::GetMaybeLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
                                            "FileUpload", doc, title);
  }

  nsCOMPtr<nsIFilePicker> filePicker =
      do_CreateInstance("@mozilla.org/filepicker;1");
  if (!filePicker) return NS_ERROR_FAILURE;

  nsIFilePicker::Mode mode;

  if (aType == FILE_PICKER_DIRECTORY) {
    mode = nsIFilePicker::modeGetFolder;
  } else if (HasAttr(nsGkAtoms::multiple)) {
    mode = nsIFilePicker::modeOpenMultiple;
  } else {
    mode = nsIFilePicker::modeOpen;
  }

  nsresult rv = filePicker->Init(bc, title, mode);
  NS_ENSURE_SUCCESS(rv, rv);

  if (!okButtonLabel.IsEmpty()) {
    filePicker->SetOkButtonLabel(okButtonLabel);
  }

  // Native directory pickers ignore file type filters, so we don't spend
  // cycles adding them for FILE_PICKER_DIRECTORY.
  if (HasAttr(nsGkAtoms::accept) && aType != FILE_PICKER_DIRECTORY) {
    SetFilePickerFiltersFromAccept(filePicker);

    if (StaticPrefs::dom_capture_enabled()) {
      if (const nsAttrValue* captureVal = GetParsedAttr(nsGkAtoms::capture)) {
        filePicker->SetCapture(static_cast<nsIFilePicker::CaptureTarget>(
            captureVal->GetEnumValue()));
      }
    }
  } else {
    filePicker->AppendFilters(nsIFilePicker::filterAll);
  }

  // Set default directory and filename
  nsAutoString defaultName;

  const nsTArray<OwningFileOrDirectory>& oldFiles =
      GetFilesOrDirectoriesInternal();

  nsCOMPtr<nsIFilePickerShownCallback> callback =
      new HTMLInputElement::nsFilePickerShownCallback(this, filePicker);

  if (!oldFiles.IsEmpty() && aType != FILE_PICKER_DIRECTORY) {
    nsAutoString path;

    nsCOMPtr<nsIFile> parentFile = LastUsedDirectory(oldFiles[0]);
    if (parentFile) {
      filePicker->SetDisplayDirectory(parentFile);
    }

    // Unfortunately nsIFilePicker doesn't allow multiple files to be
    // default-selected, so only select something by default if exactly
    // one file was selected before.
    if (oldFiles.Length() == 1) {
      nsAutoString leafName;
      GetDOMFileOrDirectoryName(oldFiles[0], leafName);

      if (!leafName.IsEmpty()) {
        filePicker->SetDefaultString(leafName);
      }
    }

    rv = filePicker->Open(callback);
    if (NS_SUCCEEDED(rv)) {
      mPickerRunning = true;
      SetStates(ElementState::OPEN, true);
    }

    return rv;
  }

  HTMLInputElement::gUploadLastDir->FetchDirectoryAndDisplayPicker(
      doc, filePicker, callback);
  mPickerRunning = true;
  SetStates(ElementState::OPEN, true);
  return NS_OK;
}

#define CPS_PREF_NAME u"browser.upload.lastDir"_ns

NS_IMPL_ISUPPORTS(UploadLastDir, nsIObserver, nsISupportsWeakReference)

void HTMLInputElement::InitUploadLastDir() {
  gUploadLastDir = new UploadLastDir();
  NS_ADDREF(gUploadLastDir);

  nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
  if (observerService && gUploadLastDir) {
    observerService->AddObserver(gUploadLastDir,
                                 "browser:purge-session-history", true);
  }
}

void HTMLInputElement::DestroyUploadLastDir() { NS_IF_RELEASE(gUploadLastDir); }

nsresult UploadLastDir::FetchDirectoryAndDisplayPicker(
    Document* aDoc, nsIFilePicker* aFilePicker,
    nsIFilePickerShownCallback* aFpCallback) {
  MOZ_ASSERT(aDoc, "aDoc is null");
  MOZ_ASSERT(aFilePicker, "aFilePicker is null");
  MOZ_ASSERT(aFpCallback, "aFpCallback is null");

  nsIURI* docURI = aDoc->GetDocumentURI();
  MOZ_ASSERT(docURI, "docURI is null");

  nsCOMPtr<nsILoadContext> loadContext = aDoc->GetLoadContext();
  nsCOMPtr<nsIContentPrefCallback2> prefCallback =
      new UploadLastDir::ContentPrefCallback(aFilePicker, aFpCallback);

  // Attempt to get the CPS, if it's not present we'll fallback to use the
  // Desktop folder
  nsCOMPtr<nsIContentPrefService2> contentPrefService =
      do_GetService(NS_CONTENT_PREF_SERVICE_CONTRACTID);
  if (!contentPrefService) {
    prefCallback->HandleCompletion(nsIContentPrefCallback2::COMPLETE_ERROR);
    return NS_OK;
  }

  nsAutoCString cstrSpec;
  docURI->GetSpec(cstrSpec);
  NS_ConvertUTF8toUTF16 spec(cstrSpec);

  contentPrefService->GetByDomainAndName(spec, CPS_PREF_NAME, loadContext,
                                         prefCallback);
  return NS_OK;
}

nsresult UploadLastDir::StoreLastUsedDirectory(Document* aDoc, nsIFile* aDir) {
  MOZ_ASSERT(aDoc, "aDoc is null");
  if (!aDir) {
    return NS_OK;
  }

  nsCOMPtr<nsIURI> docURI = aDoc->GetDocumentURI();
  MOZ_ASSERT(docURI, "docURI is null");

  // Attempt to get the CPS, if it's not present we'll just return
  nsCOMPtr<nsIContentPrefService2> contentPrefService =
      do_GetService(NS_CONTENT_PREF_SERVICE_CONTRACTID);
  if (!contentPrefService) return NS_ERROR_NOT_AVAILABLE;

  nsAutoCString cstrSpec;
  docURI->GetSpec(cstrSpec);
  NS_ConvertUTF8toUTF16 spec(cstrSpec);

  // Find the parent of aFile, and store it
  nsString unicodePath;
  aDir->GetPath(unicodePath);
  if (unicodePath.IsEmpty())  // nothing to do
    return NS_OK;
  RefPtr<nsVariantCC> prefValue = new nsVariantCC();
  prefValue->SetAsAString(unicodePath);

  // Use the document's current load context to ensure that the content pref
  // service doesn't persistently store this directory for this domain if the
  // user is using private browsing:
  nsCOMPtr<nsILoadContext> loadContext = aDoc->GetLoadContext();
  return contentPrefService->Set(spec, CPS_PREF_NAME, prefValue, loadContext,
                                 nullptr);
}

NS_IMETHODIMP
UploadLastDir::Observe(nsISupports* aSubject, char const* aTopic,
                       char16_t const* aData) {
  if (strcmp(aTopic, "browser:purge-session-history") == 0) {
    nsCOMPtr<nsIContentPrefService2> contentPrefService =
        do_GetService(NS_CONTENT_PREF_SERVICE_CONTRACTID);
    if (contentPrefService)
      contentPrefService->RemoveByName(CPS_PREF_NAME, nullptr, nullptr);
  }
  return NS_OK;
}

#ifdef ACCESSIBILITY
// Helper method
static nsresult FireEventForAccessibility(HTMLInputElement* aTarget,
                                          EventMessage aEventMessage);
#endif

//
// construction, destruction
//

HTMLInputElement::HTMLInputElement(already_AddRefed<dom::NodeInfo>&& aNodeInfo,
                                   FromParser aFromParser, FromClone aFromClone)
    : TextControlElement(std::move(aNodeInfo), aFromParser,
                         FormControlType(kInputDefaultType->value)),
      mAutocompleteAttrState(nsContentUtils::eAutocompleteAttrState_Unknown),
      mAutocompleteInfoState(nsContentUtils::eAutocompleteAttrState_Unknown),
      mDisabledChanged(false),
      mValueChanged(false),
      mUserInteracted(false),
      mLastValueChangeWasInteractive(false),
      mCheckedChanged(false),
      mChecked(false),
      mShouldInitChecked(false),
      mDoneCreating(aFromParser == NOT_FROM_PARSER &&
                    aFromClone == FromClone::No),
      mInInternalActivate(false),
      mCheckedIsToggled(false),
      mIndeterminate(false),
      mInhibitRestoration(aFromParser & FROM_PARSER_FRAGMENT),
      mHasRange(false),
      mIsDraggingRange(false),
      mNumberControlSpinnerIsSpinning(false),
      mNumberControlSpinnerSpinsUp(false),
      mPickerRunning(false),
      mIsPreviewEnabled(false),
      mHasBeenTypePassword(false),
      mHasPatternAttribute(false),
      mRadioGroupContainer(nullptr) {
  // If size is above 512, mozjemalloc allocates 1kB, see
  // memory/build/mozjemalloc.cpp
  static_assert(sizeof(HTMLInputElement) <= 512,
                "Keep the size of HTMLInputElement under 512 to avoid "
                "performance regression!");

  // We are in a type=text but we create TextControlState lazily.
  mInputData.mState = nullptr;

  void* memory = mInputTypeMem;
  mInputType = InputType::Create(this, mType, memory);

  if (!gUploadLastDir) HTMLInputElement::InitUploadLastDir();

  // Set up our default state.  By default we're enabled (since we're a control
  // type that can be disabled but not actually disabled right now), optional,
  // read-write, and valid. Also by default we don't have to show validity UI
  // and so forth.
  AddStatesSilently(ElementState::ENABLED | ElementState::OPTIONAL_ |
                    ElementState::VALID | ElementState::VALUE_EMPTY |
                    ElementState::READWRITE);
  RemoveStatesSilently(ElementState::READONLY);
  UpdateApzAwareFlag();
}

HTMLInputElement::~HTMLInputElement() {
  if (mNumberControlSpinnerIsSpinning) {
    StopNumberControlSpinnerSpin(eDisallowDispatchingEvents);
  }
  nsImageLoadingContent::Destroy();
  FreeData();
}

void HTMLInputElement::FreeData() {
  if (!IsSingleLineTextControl(false)) {
    free(mInputData.mValue);
    mInputData.mValue = nullptr;
  } else if (mInputData.mState) {
    // XXX Passing nullptr to UnbindFromFrame doesn't do anything!
    UnbindFromFrame(nullptr);
    mInputData.mState->Destroy();
    mInputData.mState = nullptr;
  }

  if (mInputType) {
    mInputType->DropReference();
    mInputType = nullptr;
  }
}

void HTMLInputElement::EnsureEditorState() {
  MOZ_ASSERT(IsSingleLineTextControl(false));
  if (!mInputData.mState) {
    mInputData.mState = TextControlState::Construct(this);
  }
}

TextControlState* HTMLInputElement::GetEditorState() const {
  if (!IsSingleLineTextControl(false)) {
    return nullptr;
  }

  // We've postponed allocating TextControlState, doing that in a const
  // method is fine.
  const_cast<HTMLInputElement*>(this)->EnsureEditorState();

  MOZ_ASSERT(mInputData.mState,
             "Single line text controls need to have a state"
             " associated with them");

  return mInputData.mState;
}

// nsISupports

NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLInputElement)

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLInputElement,
                                                  TextControlElement)
  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mValidity)
  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mControllers)
  if (tmp->IsSingleLineTextControl(false) && tmp->mInputData.mState) {
    tmp->mInputData.mState->Traverse(cb);
  }

  if (tmp->mFileData) {
    tmp->mFileData->Traverse(cb);
  }
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLInputElement,
                                                TextControlElement)
  NS_IMPL_CYCLE_COLLECTION_UNLINK(mValidity)
  NS_IMPL_CYCLE_COLLECTION_UNLINK(mControllers)
  if (tmp->IsSingleLineTextControl(false) && tmp->mInputData.mState) {
    tmp->mInputData.mState->Unlink();
  }

  if (tmp->mFileData) {
    tmp->mFileData->Unlink();
  }
  // XXX should unlink more?
NS_IMPL_CYCLE_COLLECTION_UNLINK_END

NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(HTMLInputElement,
                                             TextControlElement,
                                             imgINotificationObserver,
                                             nsIImageLoadingContent,
                                             nsIConstraintValidation)

// nsINode

nsresult HTMLInputElement::Clone(dom::NodeInfo* aNodeInfo,
                                 nsINode** aResult) const {
  *aResult = nullptr;

  RefPtr<HTMLInputElement> it = new (aNodeInfo->NodeInfoManager())
      HTMLInputElement(do_AddRef(aNodeInfo), NOT_FROM_PARSER, FromClone::Yes);

  nsresult rv = const_cast<HTMLInputElement*>(this)->CopyInnerTo(it);
  NS_ENSURE_SUCCESS(rv, rv);

  switch (GetValueMode()) {
    case VALUE_MODE_VALUE:
      if (mValueChanged) {
        // We don't have our default value anymore.  Set our value on
        // the clone.
        nsAutoString value;
        GetNonFileValueInternal(value);
        // SetValueInternal handles setting the VALUE_CHANGED bit for us
        if (NS_WARN_IF(
                NS_FAILED(rv = it->SetValueInternal(
                              value, {ValueSetterOption::SetValueChanged})))) {
          return rv;
        }
      }
      break;
    case VALUE_MODE_FILENAME:
      if (it->OwnerDoc()->IsStaticDocument()) {
        // We're going to be used in print preview.  Since the doc is static
        // we can just grab the pretty string and use it as wallpaper
        GetDisplayFileName(it->mFileData->mStaticDocFileList);
      } else {
        it->mFileData->ClearGetFilesHelpers();
        it->mFileData->mFilesOrDirectories.Clear();
        it->mFileData->mFilesOrDirectories.AppendElements(
            mFileData->mFilesOrDirectories);
      }
      break;
    case VALUE_MODE_DEFAULT_ON:
    case VALUE_MODE_DEFAULT:
      break;
  }

  if (mCheckedChanged) {
    // We no longer have our original checked state.  Set our
    // checked state on the clone.
    it->DoSetChecked(mChecked, /* aNotify */ false,
                     /* aSetValueChanged */ true);
    // Then tell DoneCreatingElement() not to overwrite:
    it->mShouldInitChecked = false;
  }

  it->mIndeterminate = mIndeterminate;

  it->DoneCreatingElement();

  it->SetLastValueChangeWasInteractive(mLastValueChangeWasInteractive);
  it.forget(aResult);
  return NS_OK;
}

void HTMLInputElement::BeforeSetAttr(int32_t aNameSpaceID, nsAtom* aName,
                                     const nsAttrValue* aValue, bool aNotify) {
  if (aNameSpaceID == kNameSpaceID_None) {
    if (aNotify && aName == nsGkAtoms::disabled) {
      mDisabledChanged = true;
    }

    // When name or type changes, radio should be removed from radio group.
    // If we are not done creating the radio, we also should not do it.
    if (mType == FormControlType::InputRadio) {
      if ((aName == nsGkAtoms::name || (aName == nsGkAtoms::type && !mForm)) &&
          (mForm || mDoneCreating)) {
        RemoveFromRadioGroup();
      } else if (aName == nsGkAtoms::required) {
        auto* container = GetCurrentRadioGroupContainer();

        if (container && ((aValue && !HasAttr(aNameSpaceID, aName)) ||
                          (!aValue && HasAttr(aNameSpaceID, aName)))) {
          nsAutoString name;
          GetAttr(nsGkAtoms::name, name);
          container->RadioRequiredWillChange(name, !!aValue);
        }
      }
    }

    if (aName == nsGkAtoms::webkitdirectory) {
      Telemetry::Accumulate(Telemetry::WEBKIT_DIRECTORY_USED, true);
    }
  }

  return nsGenericHTMLFormControlElementWithState::BeforeSetAttr(
      aNameSpaceID, aName, aValue, aNotify);
}

void HTMLInputElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
                                    const nsAttrValue* aValue,
                                    const nsAttrValue* aOldValue,
                                    nsIPrincipal* aSubjectPrincipal,
                                    bool aNotify) {
  if (aNameSpaceID == kNameSpaceID_None) {
    bool needValidityUpdate = false;
    if (aName == nsGkAtoms::src) {
      mSrcTriggeringPrincipal = nsContentUtils::GetAttrTriggeringPrincipal(
          this, aValue ? aValue->GetStringValue() : EmptyString(),
          aSubjectPrincipal);
      if (aNotify && mType == FormControlType::InputImage) {
        if (aValue) {
          // Mark channel as urgent-start before load image if the image load is
          // initiated by a user interaction.
          mUseUrgentStartForChannel = UserActivation::IsHandlingUserInput();

          LoadImage(aValue->GetStringValue(), true, aNotify,
                    eImageLoadType_Normal, mSrcTriggeringPrincipal);
        } else {
          // Null value means the attr got unset; drop the image
          CancelImageRequests(aNotify);
        }
      }
    }

    if (aName == nsGkAtoms::value) {
      // If the element has a value in value mode, the value content attribute
      // is the default value. So if the elements value didn't change from the
      // default, we have to re-set it.
      if (!mValueChanged && GetValueMode() == VALUE_MODE_VALUE) {
        SetDefaultValueAsValue();
      } else if (GetValueMode() == VALUE_MODE_DEFAULT) {
        ResetDirFormAssociatedElement(this, aNotify, HasDirAuto());
      }
      // GetStepBase() depends on the `value` attribute if `min` is not present,
      // even if the value doesn't change.
      UpdateStepMismatchValidityState();
      needValidityUpdate = true;
    }

    // Checked must be set no matter what type of control it is, since
    // mChecked must reflect the new value
    if (aName == nsGkAtoms::checked) {
      if (IsRadioOrCheckbox()) {
        SetStates(ElementState::DEFAULT, !!aValue, aNotify);
      }
      if (!mCheckedChanged) {
        // Delay setting checked if we are creating this element (wait
        // until everything is set)
        if (!mDoneCreating) {
          mShouldInitChecked = true;
        } else {
          DoSetChecked(!!aValue, aNotify, /* aSetValueChanged */ false);
        }
      }
      needValidityUpdate = true;
    }

    if (aName == nsGkAtoms::type) {
      FormControlType newType;
      if (!aValue) {
        // We're now a text input.
        newType = FormControlType(kInputDefaultType->value);
      } else {
        newType = FormControlType(aValue->GetEnumValue());
      }
      if (newType != mType) {
        HandleTypeChange(newType, aNotify);
        needValidityUpdate = true;
      }
    }

    // When name or type changes, radio should be added to radio group.
    // If we are not done creating the radio, we also should not do it.
    if ((aName == nsGkAtoms::name || (aName == nsGkAtoms::type && !mForm)) &&
        mType == FormControlType::InputRadio && (mForm || mDoneCreating)) {
      AddToRadioGroup();
      UpdateValueMissingValidityStateForRadio(false);
      needValidityUpdate = true;
    }

    if (aName == nsGkAtoms::required || aName == nsGkAtoms::disabled ||
        aName == nsGkAtoms::readonly) {
      if (aName == nsGkAtoms::disabled) {
        // This *has* to be called *before* validity state check because
        // UpdateBarredFromConstraintValidation and
        // UpdateValueMissingValidityState depend on our disabled state.
        UpdateDisabledState(aNotify);
      }

      if (aName == nsGkAtoms::required && DoesRequiredApply()) {
        // This *has* to be called *before* UpdateValueMissingValidityState
        // because UpdateValueMissingValidityState depends on our required
        // state.
        UpdateRequiredState(!!aValue, aNotify);
      }

      if (aName == nsGkAtoms::readonly && !!aValue != !!aOldValue) {
        UpdateReadOnlyState(aNotify);
      }

      UpdateValueMissingValidityState();

      // This *has* to be called *after* validity has changed.
      if (aName == nsGkAtoms::readonly || aName == nsGkAtoms::disabled) {
        UpdateBarredFromConstraintValidation();
      }
      needValidityUpdate = true;
    } else if (aName == nsGkAtoms::maxlength) {
      UpdateTooLongValidityState();
      needValidityUpdate = true;
    } else if (aName == nsGkAtoms::minlength) {
      UpdateTooShortValidityState();
      needValidityUpdate = true;
    } else if (aName == nsGkAtoms::pattern) {
      // Although pattern attribute only applies to single line text controls,
      // we set this flag for all input types to save having to check the type
      // here.
      mHasPatternAttribute = !!aValue;

      if (mDoneCreating) {
        UpdatePatternMismatchValidityState();
      }
      needValidityUpdate = true;
    } else if (aName == nsGkAtoms::multiple) {
      UpdateTypeMismatchValidityState();
      needValidityUpdate = true;
    } else if (aName == nsGkAtoms::max) {
      UpdateHasRange(aNotify);
      mInputType->MinMaxStepAttrChanged();
      // Validity state must be updated *after* the UpdateValueDueToAttrChange
      // call above or else the following assert will not be valid.
      // We don't assert the state of underflow during creation since
      // DoneCreatingElement sanitizes.
      UpdateRangeOverflowValidityState();
      needValidityUpdate = true;
      MOZ_ASSERT(!mDoneCreating || mType != FormControlType::InputRange ||
                     !GetValidityState(VALIDITY_STATE_RANGE_UNDERFLOW),
                 "HTML5 spec does not allow underflow for type=range");
    } else if (aName == nsGkAtoms::min) {
      UpdateHasRange(aNotify);
      mInputType->MinMaxStepAttrChanged();
      // See corresponding @max comment
      UpdateRangeUnderflowValidityState();
      UpdateStepMismatchValidityState();
      needValidityUpdate = true;
      MOZ_ASSERT(!mDoneCreating || mType != FormControlType::InputRange ||
                     !GetValidityState(VALIDITY_STATE_RANGE_UNDERFLOW),
                 "HTML5 spec does not allow underflow for type=range");
    } else if (aName == nsGkAtoms::step) {
      mInputType->MinMaxStepAttrChanged();
      // See corresponding @max comment
      UpdateStepMismatchValidityState();
      needValidityUpdate = true;
      MOZ_ASSERT(!mDoneCreating || mType != FormControlType::InputRange ||
                     !GetValidityState(VALIDITY_STATE_RANGE_UNDERFLOW),
                 "HTML5 spec does not allow underflow for type=range");
    } else if (aName == nsGkAtoms::dir && aValue &&
               aValue->Equals(nsGkAtoms::_auto, eIgnoreCase)) {
      ResetDirFormAssociatedElement(this, aNotify, true);
    } else if (aName == nsGkAtoms::lang) {
      // FIXME(emilio, bug 1651070): This doesn't account for lang changes on
      // ancestors.
      if (mType == FormControlType::InputNumber) {
        // The validity of our value may have changed based on the locale.
        UpdateValidityState();
        needValidityUpdate = true;
      }
    } else if (aName == nsGkAtoms::autocomplete) {
      // Clear the cached @autocomplete attribute and autocompleteInfo state.
      mAutocompleteAttrState = nsContentUtils::eAutocompleteAttrState_Unknown;
      mAutocompleteInfoState = nsContentUtils::eAutocompleteAttrState_Unknown;
    } else if (aName == nsGkAtoms::placeholder) {
      // Full addition / removals of the attribute reconstruct right now.
      if (nsTextControlFrame* f = do_QueryFrame(GetPrimaryFrame())) {
        f->PlaceholderChanged(aOldValue, aValue);
      }
      UpdatePlaceholderShownState();
      needValidityUpdate = true;
    }

    if (CreatesDateTimeWidget()) {
      if (aName == nsGkAtoms::value || aName == nsGkAtoms::readonly ||
          aName == nsGkAtoms::tabindex || aName == nsGkAtoms::required ||
          aName == nsGkAtoms::disabled) {
        // If original target is this and not the inner text control, we should
        // pass the focus to the inner text control.
        if (Element* dateTimeBoxElement = GetDateTimeBoxElement()) {
          AsyncEventDispatcher::RunDOMEventWhenSafe(
              *dateTimeBoxElement,
              aName == nsGkAtoms::value ? u"MozDateTimeValueChanged"_ns
                                        : u"MozDateTimeAttributeChanged"_ns,
              CanBubble::eNo, ChromeOnlyDispatch::eNo);
        }
      }
    }
    if (needValidityUpdate) {
      UpdateValidityElementStates(aNotify);
    }
  }

  return nsGenericHTMLFormControlElementWithState::AfterSetAttr(
      aNameSpaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
}

void HTMLInputElement::BeforeSetForm(HTMLFormElement* aForm, bool aBindToTree) {
  // No need to remove from radio group if we are just binding to tree.
  if (mType == FormControlType::InputRadio && !aBindToTree) {
    RemoveFromRadioGroup();
  }

  // Dispatch event when <input> @form is set
  if (!aBindToTree) {
    MaybeDispatchLoginManagerEvents(aForm);
  }
}

void HTMLInputElement::AfterClearForm(bool aUnbindOrDelete) {
  MOZ_ASSERT(!mForm);

  // Do not add back to radio group if we are releasing or unbinding from tree.
  if (mType == FormControlType::InputRadio && !aUnbindOrDelete &&
      !GetCurrentRadioGroupContainer()) {
    AddToRadioGroup();
    UpdateValueMissingValidityStateForRadio(false);
  }
}

void HTMLInputElement::ResultForDialogSubmit(nsAString& aResult) {
  if (mType == FormControlType::InputImage) {
    // Get a property set by the frame to find out where it was clicked.
    const auto* lastClickedPoint =
        static_cast<CSSIntPoint*>(GetProperty(nsGkAtoms::imageClickedPoint));
    int32_t x, y;
    if (lastClickedPoint) {
      x = lastClickedPoint->x;
      y = lastClickedPoint->y;
    } else {
      x = y = 0;
    }
    aResult.AppendInt(x);
    aResult.AppendLiteral(",");
    aResult.AppendInt(y);
  } else {
    GetAttr(nsGkAtoms::value, aResult);
  }
}

void HTMLInputElement::GetAutocomplete(nsAString& aValue) {
  if (!DoesAutocompleteApply()) {
    return;
  }

  aValue.Truncate();
  const nsAttrValue* attributeVal = GetParsedAttr(nsGkAtoms::autocomplete);

  mAutocompleteAttrState = nsContentUtils::SerializeAutocompleteAttribute(
      attributeVal, aValue, mAutocompleteAttrState);
}

void HTMLInputElement::GetAutocompleteInfo(Nullable<AutocompleteInfo>& aInfo) {
  if (!DoesAutocompleteApply()) {
    aInfo.SetNull();
    return;
  }

  const nsAttrValue* attributeVal = GetParsedAttr(nsGkAtoms::autocomplete);
  mAutocompleteInfoState = nsContentUtils::SerializeAutocompleteAttribute(
      attributeVal, aInfo.SetValue(), mAutocompleteInfoState, true);
}

void HTMLInputElement::GetCapture(nsAString& aValue) {
  GetEnumAttr(nsGkAtoms::capture, kCaptureDefault->tag, aValue);
}

void HTMLInputElement::GetFormEnctype(nsAString& aValue) {
  GetEnumAttr(nsGkAtoms::formenctype, "", kFormDefaultEnctype->tag, aValue);
}

void HTMLInputElement::GetFormMethod(nsAString& aValue) {
  GetEnumAttr(nsGkAtoms::formmethod, "", kFormDefaultMethod->tag, aValue);
}

void HTMLInputElement::GetType(nsAString& aValue) const {
  GetEnumAttr(nsGkAtoms::type, kInputDefaultType->tag, aValue);
}

int32_t HTMLInputElement::TabIndexDefault() { return 0; }

uint32_t HTMLInputElement::Height() {
  if (mType != FormControlType::InputImage) {
    return 0;
  }
  return GetWidthHeightForImage().height;
}

void HTMLInputElement::SetIndeterminateInternal(bool aValue,
                                                bool aShouldInvalidate) {
  mIndeterminate = aValue;
  if (mType != FormControlType::InputCheckbox) {
    return;
  }

  SetStates(ElementState::INDETERMINATE, aValue);

  if (aShouldInvalidate) {
    // Repaint the frame
    if (nsIFrame* frame = GetPrimaryFrame()) {
      frame->InvalidateFrameSubtree();
    }
  }
}

void HTMLInputElement::SetIndeterminate(bool aValue) {
  SetIndeterminateInternal(aValue, true);
}

uint32_t HTMLInputElement::Width() {
  if (mType != FormControlType::InputImage) {
    return 0;
  }
  return GetWidthHeightForImage().width;
}

bool HTMLInputElement::SanitizesOnValueGetter() const {
  // Don't return non-sanitized value for datetime types, email, or number.
  return mType == FormControlType::InputEmail ||
         mType == FormControlType::InputNumber || IsDateTimeInputType(mType);
}

void HTMLInputElement::GetValue(nsAString& aValue, CallerType aCallerType) {
  GetValueInternal(aValue, aCallerType);

  // In the case where we need to sanitize an input value without affecting
  // the displayed user's input, we instead sanitize only on .value accesses.
  // For the more general case of input elements displaying text that isn't
  // their current value, see bug 805049.
  if (SanitizesOnValueGetter()) {
    SanitizeValue(aValue, SanitizationKind::ForValueGetter);
  }
}

void HTMLInputElement::GetValueInternal(nsAString& aValue,
                                        CallerType aCallerType) const {
  if (mType != FormControlType::InputFile) {
    GetNonFileValueInternal(aValue);
    return;
  }

  if (aCallerType == CallerType::System) {
    aValue.Assign(mFileData->mFirstFilePath);
    return;
  }

  if (mFileData->mFilesOrDirectories.IsEmpty()) {
    aValue.Truncate();
    return;
  }

  nsAutoString file;
  GetDOMFileOrDirectoryName(mFileData->mFilesOrDirectories[0], file);
  if (file.IsEmpty()) {
    aValue.Truncate();
    return;
  }

  aValue.AssignLiteral("C:\\fakepath\\");
  aValue.Append(file);
}

void HTMLInputElement::GetNonFileValueInternal(nsAString& aValue) const {
  switch (GetValueMode()) {
    case VALUE_MODE_VALUE:
      if (IsSingleLineTextControl(false)) {
        if (mInputData.mState) {
          mInputData.mState->GetValue(aValue, true, /* aForDisplay = */ false);
        } else {
          // Value hasn't been set yet.
          aValue.Truncate();
        }
      } else if (!aValue.Assign(mInputData.mValue, fallible)) {
        aValue.Truncate();
      }
      return;

    case VALUE_MODE_FILENAME:
      MOZ_ASSERT_UNREACHABLE("Someone screwed up here");
      // We'll just return empty string if someone does screw up.
      aValue.Truncate();
      return;

    case VALUE_MODE_DEFAULT:
      // Treat defaultValue as value.
      GetAttr(nsGkAtoms::value, aValue);
      return;

    case VALUE_MODE_DEFAULT_ON:
      // Treat default value as value and returns "on" if no value.
      if (!GetAttr(nsGkAtoms::value, aValue)) {
        aValue.AssignLiteral("on");
      }
      return;
  }
}

void HTMLInputElement::ClearFiles(bool aSetValueChanged) {
  nsTArray<OwningFileOrDirectory> data;
  SetFilesOrDirectories(data, aSetValueChanged);
}

int32_t HTMLInputElement::MonthsSinceJan1970(uint32_t aYear,
                                             uint32_t aMonth) const {
  return (aYear - 1970) * 12 + aMonth - 1;
}

/* static */
Decimal HTMLInputElement::StringToDecimal(const nsAString& aValue) {
  if (!IsAscii(aValue)) {
    return Decimal::nan();
  }
  NS_LossyConvertUTF16toASCII asciiString(aValue);
  std::string stdString(asciiString.get(), asciiString.Length());
  auto decimal = Decimal::fromString(stdString);
  if (!decimal.isFinite()) {
    return Decimal::nan();
  }
  // Numbers are considered finite IEEE 754 Double-precision floating point
  // values, but decimal supports a bigger range.
  static const Decimal maxDouble =
      Decimal::fromDouble(std::numeric_limits<double>::max());
  if (decimal < -maxDouble || decimal > maxDouble) {
    return Decimal::nan();
  }
  return decimal;
}

Decimal HTMLInputElement::GetValueAsDecimal() const {
  nsAutoString stringValue;
  GetNonFileValueInternal(stringValue);
  Decimal result = mInputType->ConvertStringToNumber(stringValue).mResult;
  return result.isFinite() ? result : Decimal::nan();
}

void HTMLInputElement::SetValue(const nsAString& aValue, CallerType aCallerType,
                                ErrorResult& aRv) {
  // check security.  Note that setting the value to the empty string is always
  // OK and gives pages a way to clear a file input if necessary.
  if (mType == FormControlType::InputFile) {
    if (!aValue.IsEmpty()) {
      if (aCallerType != CallerType::System) {
        // setting the value of a "FILE" input widget requires
        // chrome privilege
        aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
        return;
      }
      Sequence<nsString> list;
      if (!list.AppendElement(aValue, fallible)) {
        aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
        return;
      }

      MozSetFileNameArray(list, aRv);
      return;
    }
    ClearFiles(true);
  } else {
    if (MayFireChangeOnBlur()) {
      // If the value has been set by a script, we basically want to keep the
      // current change event state. If the element is ready to fire a change
      // event, we should keep it that way. Otherwise, we should make sure the
      // element will not fire any event because of the script interaction.
      //
      // NOTE: this is currently quite expensive work (too much string
      // manipulation). We should probably optimize that.
      nsAutoString currentValue;
      GetNonFileValueInternal(currentValue);

      nsresult rv = SetValueInternal(
          aValue, ¤tValue,
          {ValueSetterOption::ByContentAPI, ValueSetterOption::SetValueChanged,
           ValueSetterOption::MoveCursorToEndIfValueChanged});
      if (NS_FAILED(rv)) {
        aRv.Throw(rv);
        return;
      }

      if (mFocusedValue.Equals(currentValue)) {
        GetValue(mFocusedValue, aCallerType);
      }
    } else {
      nsresult rv = SetValueInternal(
          aValue,
          {ValueSetterOption::ByContentAPI, ValueSetterOption::SetValueChanged,
           ValueSetterOption::MoveCursorToEndIfValueChanged});
      if (NS_FAILED(rv)) {
        aRv.Throw(rv);
        return;
      }
    }
  }
}

HTMLDataListElement* HTMLInputElement::GetList() const {
  nsAutoString dataListId;
  GetAttr(nsGkAtoms::list_, dataListId);
  if (dataListId.IsEmpty()) {
    return nullptr;
  }

  DocumentOrShadowRoot* docOrShadow = GetUncomposedDocOrConnectedShadowRoot();
  if (!docOrShadow) {
    return nullptr;
  }

  return HTMLDataListElement::FromNodeOrNull(
      docOrShadow->GetElementById(dataListId));
}

void HTMLInputElement::SetValue(Decimal aValue, CallerType aCallerType) {
  MOZ_ASSERT(!aValue.isInfinity(), "aValue must not be Infinity!");

  if (aValue.isNaN()) {
    SetValue(u""_ns, aCallerType, IgnoreErrors());
    return;
  }

  nsAutoString value;
  mInputType->ConvertNumberToString(aValue, value);
  SetValue(value, aCallerType, IgnoreErrors());
}

void HTMLInputElement::GetValueAsDate(JSContext* aCx,
                                      JS::MutableHandle<JSObject*> aObject,
                                      ErrorResult& aRv) {
  aObject.set(nullptr);
  if (!IsDateTimeInputType(mType)) {
    return;
  }

  Maybe<JS::ClippedTime> time;

  switch (mType) {
    case FormControlType::InputDate: {
      uint32_t year, month, day;
      nsAutoString value;
      GetNonFileValueInternal(value);
      if (!ParseDate(value, &year, &month, &day)) {
        return;
      }

      time.emplace(JS::TimeClip(JS::MakeDate(year, month - 1, day)));
      break;
    }
    case FormControlType::InputTime: {
      uint32_t millisecond;
      nsAutoString value;
      GetNonFileValueInternal(value);
      if (!ParseTime(value, &millisecond)) {
        return;
      }

      time.emplace(JS::TimeClip(millisecond));
      MOZ_ASSERT(time->toDouble() == millisecond,
                 "HTML times are restricted to the day after the epoch and "
                 "never clip");
      break;
    }
    case FormControlType::InputMonth: {
      uint32_t year, month;
      nsAutoString value;
      GetNonFileValueInternal(value);
      if (!ParseMonth(value, &year, &month)) {
        return;
      }

      time.emplace(JS::TimeClip(JS::MakeDate(year, month - 1, 1)));
      break;
    }
    case FormControlType::InputWeek: {
      uint32_t year, week;
      nsAutoString value;
      GetNonFileValueInternal(value);
      if (!ParseWeek(value, &year, &week)) {
        return;
      }

      double days = DaysSinceEpochFromWeek(year, week);
      time.emplace(JS::TimeClip(days * kMsPerDay));

      break;
    }
    case FormControlType::InputDatetimeLocal: {
      uint32_t year, month, day, timeInMs;
      nsAutoString value;
      GetNonFileValueInternal(value);
      if (!ParseDateTimeLocal(value, &year, &month, &day, &timeInMs)) {
        return;
      }

      time.emplace(JS::TimeClip(JS::MakeDate(year, month - 1, day, timeInMs)));
      break;
    }
    default:
      break;
  }

  if (time) {
    aObject.set(JS::NewDateObject(aCx, *time));
    if (!aObject) {
      aRv.NoteJSContextException(aCx);
    }
    return;
  }

  MOZ_ASSERT(false, "Unrecognized input type");
  aRv.Throw(NS_ERROR_UNEXPECTED);
}

void HTMLInputElement::SetValueAsDate(JSContext* aCx,
                                      JS::Handle<JSObject*> aObj,
                                      ErrorResult& aRv) {
  if (!IsDateTimeInputType(mType)) {
    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
    return;
  }

  if (aObj) {
    bool isDate;
    if (!JS::ObjectIsDate(aCx, aObj, &isDate)) {
      aRv.NoteJSContextException(aCx);
      return;
    }
    if (!isDate) {
      aRv.ThrowTypeError("Value being assigned is not a date.");
      return;
    }
  }

  double milliseconds;
  if (aObj) {
    if (!js::DateGetMsecSinceEpoch(aCx, aObj, &milliseconds)) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  } else {
    milliseconds = UnspecifiedNaN<double>();
  }

  // At this point we know we're not a file input, so we can just pass "not
  // system" as the caller type, since the caller type only matters in the file
  // input case.
  if (std::isnan(milliseconds)) {
    SetValue(u""_ns, CallerType::NonSystem, aRv);
    return;
  }

  if (mType != FormControlType::InputMonth) {
    SetValue(Decimal::fromDouble(milliseconds), CallerType::NonSystem);
    return;
  }

  // type=month expects the value to be number of months.
  double year = JS::YearFromTime(milliseconds);
  double month = JS::MonthFromTime(milliseconds);

  if (std::isnan(year) || std::isnan(month)) {
    SetValue(u""_ns, CallerType::NonSystem, aRv);
    return;
  }

  int32_t months = MonthsSinceJan1970(year, month + 1);
  SetValue(Decimal(int32_t(months)), CallerType::NonSystem);
}

void HTMLInputElement::SetValueAsNumber(double aValueAsNumber,
                                        ErrorResult& aRv) {
  // TODO: return TypeError when HTMLInputElement is converted to WebIDL, see
  // bug 825197.
  if (std::isinf(aValueAsNumber)) {
    aRv.Throw(NS_ERROR_INVALID_ARG);
    return;
  }

  if (!DoesValueAsNumberApply()) {
    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
    return;
  }

  // At this point we know we're not a file input, so we can just pass "not
  // system" as the caller type, since the caller type only matters in the file
  // input case.
  SetValue(Decimal::fromDouble(aValueAsNumber), CallerType::NonSystem);
}

Decimal HTMLInputElement::GetMinimum() const {
  MOZ_ASSERT(
      DoesValueAsNumberApply(),
      "GetMinimum() should only be used for types that allow .valueAsNumber");

  // Only type=range has a default minimum
  Decimal defaultMinimum =
      mType == FormControlType::InputRange ? Decimal(0) : Decimal::nan();

  if (!HasAttr(nsGkAtoms::min)) {
    return defaultMinimum;
  }

  nsAutoString minStr;
  GetAttr(nsGkAtoms::min, minStr);

  Decimal min = mInputType->ConvertStringToNumber(minStr).mResult;
  return min.isFinite() ? min : defaultMinimum;
}

Decimal HTMLInputElement::GetMaximum() const {
  MOZ_ASSERT(
      DoesValueAsNumberApply(),
      "GetMaximum() should only be used for types that allow .valueAsNumber");

  // Only type=range has a default maximum
  Decimal defaultMaximum =
      mType == FormControlType::InputRange ? Decimal(100) : Decimal::nan();

  if (!HasAttr(nsGkAtoms::max)) {
    return defaultMaximum;
  }

  nsAutoString maxStr;
  GetAttr(nsGkAtoms::max, maxStr);

  Decimal max = mInputType->ConvertStringToNumber(maxStr).mResult;
  return max.isFinite() ? max : defaultMaximum;
}

Decimal HTMLInputElement::GetStepBase() const {
  MOZ_ASSERT(IsDateTimeInputType(mType) ||
                 mType == FormControlType::InputNumber ||
                 mType == FormControlType::InputRange,
             "Check that kDefaultStepBase is correct for this new type");
  // Do NOT use GetMinimum here - the spec says to use "the min content
  // attribute", not "the minimum".
  nsAutoString minStr;
  if (GetAttr(nsGkAtoms::min, minStr)) {
    Decimal min = mInputType->ConvertStringToNumber(minStr).mResult;
    if (min.isFinite()) {
      return min;
    }
  }

  // If @min is not a double, we should use @value.
  nsAutoString valueStr;
  if (GetAttr(nsGkAtoms::value, valueStr)) {
    Decimal value = mInputType->ConvertStringToNumber(valueStr).mResult;
    if (value.isFinite()) {
      return value;
    }
  }

  if (mType == FormControlType::InputWeek) {
    return kDefaultStepBaseWeek;
  }

  return kDefaultStepBase;
}

Decimal HTMLInputElement::GetValueIfStepped(int32_t aStep,
                                            StepCallerType aCallerType,
                                            ErrorResult& aRv) {
  constexpr auto kNaN = Decimal::nan();
  if (!DoStepDownStepUpApply()) {
    aRv.ThrowInvalidStateError("Step doesn't apply to this input type");
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