mirror of
https://github.com/mozilla/gecko-dev.git
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1515db9b71
Resetting the state when the value is modified is bug 1359355. Differential Revision: https://phabricator.services.mozilla.com/D210999
388 lines
15 KiB
C++
388 lines
15 KiB
C++
/* -*- 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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#ifndef mozilla_dom_HTMLTextAreaElement_h
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#define mozilla_dom_HTMLTextAreaElement_h
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#include "mozilla/Attributes.h"
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#include "mozilla/TextControlElement.h"
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#include "mozilla/TextControlState.h"
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#include "mozilla/TextEditor.h"
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#include "mozilla/dom/ConstraintValidation.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/dom/HTMLInputElementBinding.h"
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#include "nsIControllers.h"
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#include "nsCOMPtr.h"
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#include "nsGenericHTMLElement.h"
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#include "nsStubMutationObserver.h"
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#include "nsGkAtoms.h"
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class nsIControllers;
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class nsPresContext;
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namespace mozilla {
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class EventChainPostVisitor;
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class EventChainPreVisitor;
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class PresState;
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namespace dom {
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class FormData;
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class HTMLTextAreaElement final : public TextControlElement,
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public nsStubMutationObserver,
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public ConstraintValidation {
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public:
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using ConstraintValidation::GetValidationMessage;
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using ValueSetterOption = TextControlState::ValueSetterOption;
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using ValueSetterOptions = TextControlState::ValueSetterOptions;
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explicit HTMLTextAreaElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser = NOT_FROM_PARSER);
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLTextAreaElement, textarea)
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int32_t TabIndexDefault() override;
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// Element
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bool IsInteractiveHTMLContent() const override { return true; }
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// nsGenericHTMLElement
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bool IsDisabledForEvents(WidgetEvent* aEvent) override;
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// nsGenericHTMLFormElement
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void SaveState() override;
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// FIXME: Shouldn't be a CAN_RUN_SCRIPT_BOUNDARY probably?
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MOZ_CAN_RUN_SCRIPT_BOUNDARY bool RestoreState(PresState*) override;
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// nsIFormControl
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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NS_IMETHOD Reset() override;
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NS_IMETHOD SubmitNamesValues(FormData* aFormData) override;
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void FieldSetDisabledChanged(bool aNotify) override;
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void SetLastValueChangeWasInteractive(bool);
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// TextControlElement
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bool IsSingleLineTextControlOrTextArea() const override { return true; }
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void SetValueChanged(bool aValueChanged) override;
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bool IsSingleLineTextControl() const override;
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bool IsTextArea() const override;
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bool IsPasswordTextControl() const override;
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int32_t GetCols() override;
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int32_t GetWrapCols() override;
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int32_t GetRows() override;
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void GetDefaultValueFromContent(nsAString& aValue, bool aForDisplay) override;
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bool ValueChanged() const override;
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void GetTextEditorValue(nsAString& aValue) const override;
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MOZ_CAN_RUN_SCRIPT TextEditor* GetTextEditor() override;
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TextEditor* GetTextEditorWithoutCreation() const override;
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nsISelectionController* GetSelectionController() override;
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nsFrameSelection* GetConstFrameSelection() override;
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TextControlState* GetTextControlState() const override { return mState; }
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nsresult BindToFrame(nsTextControlFrame* aFrame) override;
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MOZ_CAN_RUN_SCRIPT void UnbindFromFrame(nsTextControlFrame* aFrame) override;
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MOZ_CAN_RUN_SCRIPT nsresult CreateEditor() override;
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void SetPreviewValue(const nsAString& aValue) override;
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void GetPreviewValue(nsAString& aValue) override;
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void SetAutofillState(const nsAString& aState) override {
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SetFormAutofillState(aState);
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}
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void GetAutofillState(nsAString& aState) override {
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GetFormAutofillState(aState);
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}
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void EnablePreview() override;
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bool IsPreviewEnabled() override;
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void InitializeKeyboardEventListeners() override;
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void UpdatePlaceholderShownState();
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void OnValueChanged(ValueChangeKind, bool aNewValueEmpty,
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const nsAString* aKnownNewValue) override;
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void GetValueFromSetRangeText(nsAString& aValue) override;
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MOZ_CAN_RUN_SCRIPT nsresult
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SetValueFromSetRangeText(const nsAString& aValue) override;
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bool HasCachedSelection() override;
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// nsIContent
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nsresult BindToTree(BindContext&, nsINode& aParent) override;
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void UnbindFromTree(UnbindContext&) override;
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bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) override;
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nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
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int32_t aModType) const override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
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void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
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nsresult PreHandleEvent(EventChainVisitor& aVisitor) override;
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nsresult PostHandleEvent(EventChainPostVisitor& aVisitor) override;
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bool IsHTMLFocusable(IsFocusableFlags, bool* aIsFocusable,
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int32_t* aTabIndex) override;
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void DoneAddingChildren(bool aHaveNotified) override;
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nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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nsresult CopyInnerTo(Element* aDest);
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/**
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* Called when an attribute is about to be changed
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*/
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void BeforeSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValue* aValue, bool aNotify) override;
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// nsIMutationObserver
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NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLTextAreaElement,
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TextControlElement)
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// nsIConstraintValidation
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bool IsTooLong();
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bool IsTooShort();
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bool IsValueMissing() const;
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void UpdateTooLongValidityState();
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void UpdateTooShortValidityState();
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void UpdateValueMissingValidityState();
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void UpdateBarredFromConstraintValidation();
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// ConstraintValidation
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nsresult GetValidationMessage(nsAString& aValidationMessage,
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ValidityStateType aType) override;
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// Web IDL binding methods
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void GetAutocomplete(DOMString& aValue);
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void SetAutocomplete(const nsAString& aValue, ErrorResult& aRv) {
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SetHTMLAttr(nsGkAtoms::autocomplete, aValue, aRv);
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}
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uint32_t Cols() { return GetUnsignedIntAttr(nsGkAtoms::cols, DEFAULT_COLS); }
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void SetCols(uint32_t aCols, ErrorResult& aError) {
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uint32_t cols = aCols ? aCols : DEFAULT_COLS;
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SetUnsignedIntAttr(nsGkAtoms::cols, cols, DEFAULT_COLS, aError);
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}
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void GetDirName(nsAString& aValue) {
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GetHTMLAttr(nsGkAtoms::dirname, aValue);
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}
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void SetDirName(const nsAString& aValue, ErrorResult& aError) {
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SetHTMLAttr(nsGkAtoms::dirname, aValue, aError);
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}
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bool Disabled() { return GetBoolAttr(nsGkAtoms::disabled); }
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void SetDisabled(bool aDisabled, ErrorResult& aError) {
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SetHTMLBoolAttr(nsGkAtoms::disabled, aDisabled, aError);
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}
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// nsGenericHTMLFormControlElementWithState::GetForm is fine
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using nsGenericHTMLFormControlElementWithState::GetForm;
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int32_t MaxLength() const { return GetIntAttr(nsGkAtoms::maxlength, -1); }
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int32_t UsedMaxLength() const final { return MaxLength(); }
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void SetMaxLength(int32_t aMaxLength, ErrorResult& aError) {
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int32_t minLength = MinLength();
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if (aMaxLength < 0 || (minLength >= 0 && aMaxLength < minLength)) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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} else {
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SetHTMLIntAttr(nsGkAtoms::maxlength, aMaxLength, aError);
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}
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}
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int32_t MinLength() const { return GetIntAttr(nsGkAtoms::minlength, -1); }
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void SetMinLength(int32_t aMinLength, ErrorResult& aError) {
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int32_t maxLength = MaxLength();
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if (aMinLength < 0 || (maxLength >= 0 && aMinLength > maxLength)) {
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aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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} else {
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SetHTMLIntAttr(nsGkAtoms::minlength, aMinLength, aError);
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}
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}
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void GetName(nsAString& aName) { GetHTMLAttr(nsGkAtoms::name, aName); }
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void SetName(const nsAString& aName, ErrorResult& aError) {
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SetHTMLAttr(nsGkAtoms::name, aName, aError);
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}
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void GetPlaceholder(nsAString& aPlaceholder) {
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GetHTMLAttr(nsGkAtoms::placeholder, aPlaceholder);
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}
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void SetPlaceholder(const nsAString& aPlaceholder, ErrorResult& aError) {
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SetHTMLAttr(nsGkAtoms::placeholder, aPlaceholder, aError);
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}
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bool ReadOnly() { return GetBoolAttr(nsGkAtoms::readonly); }
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void SetReadOnly(bool aReadOnly, ErrorResult& aError) {
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SetHTMLBoolAttr(nsGkAtoms::readonly, aReadOnly, aError);
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}
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bool Required() const { return State().HasState(ElementState::REQUIRED); }
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MOZ_CAN_RUN_SCRIPT void SetRangeText(const nsAString& aReplacement,
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ErrorResult& aRv);
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MOZ_CAN_RUN_SCRIPT void SetRangeText(const nsAString& aReplacement,
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uint32_t aStart, uint32_t aEnd,
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SelectionMode aSelectMode,
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ErrorResult& aRv);
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void SetRequired(bool aRequired, ErrorResult& aError) {
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SetHTMLBoolAttr(nsGkAtoms::required, aRequired, aError);
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}
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uint32_t Rows() {
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return GetUnsignedIntAttr(nsGkAtoms::rows, DEFAULT_ROWS_TEXTAREA);
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}
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void SetRows(uint32_t aRows, ErrorResult& aError) {
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uint32_t rows = aRows ? aRows : DEFAULT_ROWS_TEXTAREA;
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SetUnsignedIntAttr(nsGkAtoms::rows, rows, DEFAULT_ROWS_TEXTAREA, aError);
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}
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void GetWrap(nsAString& aWrap) { GetHTMLAttr(nsGkAtoms::wrap, aWrap); }
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void SetWrap(const nsAString& aWrap, ErrorResult& aError) {
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SetHTMLAttr(nsGkAtoms::wrap, aWrap, aError);
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}
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void GetType(nsAString& aType);
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void GetDefaultValue(nsAString& aDefaultValue, ErrorResult& aError) const;
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void SetDefaultValue(const nsAString& aDefaultValue, ErrorResult& aError);
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void GetValue(nsAString& aValue);
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MOZ_CAN_RUN_SCRIPT void SetValue(const nsAString&, ErrorResult&);
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uint32_t GetTextLength();
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// Override SetCustomValidity so we update our state properly when it's called
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// via bindings.
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void SetCustomValidity(const nsAString& aError);
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MOZ_CAN_RUN_SCRIPT void Select();
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Nullable<uint32_t> GetSelectionStart(ErrorResult& aError);
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MOZ_CAN_RUN_SCRIPT void SetSelectionStart(
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const Nullable<uint32_t>& aSelectionStart, ErrorResult& aError);
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Nullable<uint32_t> GetSelectionEnd(ErrorResult& aError);
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MOZ_CAN_RUN_SCRIPT void SetSelectionEnd(
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const Nullable<uint32_t>& aSelectionEnd, ErrorResult& aError);
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void GetSelectionDirection(nsAString& aDirection, ErrorResult& aError);
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MOZ_CAN_RUN_SCRIPT void SetSelectionDirection(const nsAString& aDirection,
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ErrorResult& aError);
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MOZ_CAN_RUN_SCRIPT void SetSelectionRange(
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uint32_t aSelectionStart, uint32_t aSelectionEnd,
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const Optional<nsAString>& aDirecton, ErrorResult& aError);
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nsIControllers* GetControllers(ErrorResult& aError);
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// XPCOM adapter function widely used throughout code, leaving it as is.
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nsresult GetControllers(nsIControllers** aResult);
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MOZ_CAN_RUN_SCRIPT nsIEditor* GetEditorForBindings();
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bool HasEditor() const {
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MOZ_ASSERT(mState);
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return !!mState->GetTextEditorWithoutCreation();
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}
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bool IsInputEventTarget() const { return true; }
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MOZ_CAN_RUN_SCRIPT_BOUNDARY void SetUserInput(
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const nsAString& aValue, nsIPrincipal& aSubjectPrincipal);
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protected:
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MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual ~HTMLTextAreaElement();
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// get rid of the compiler warning
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using nsGenericHTMLFormControlElementWithState::IsSingleLineTextControl;
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JSObject* WrapNode(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
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nsCOMPtr<nsIControllers> mControllers;
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/** https://html.spec.whatwg.org/#user-interacted */
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bool mUserInteracted = false;
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/** Whether or not the value has changed since its default value was given. */
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bool mValueChanged = false;
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/** Whether or not the last change to the value was made interactively by the
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* user. */
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bool mLastValueChangeWasInteractive = false;
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/** Whether or not we are already handling select event. */
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bool mHandlingSelect = false;
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/** Whether or not we are done adding children (always true if not
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created by a parser */
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bool mDoneAddingChildren;
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/** Whether state restoration should be inhibited in DoneAddingChildren. */
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bool mInhibitStateRestoration;
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/** Whether our disabled state has changed from the default **/
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bool mDisabledChanged = false;
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bool mIsPreviewEnabled = false;
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nsContentUtils::AutocompleteAttrState mAutocompleteAttrState;
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void FireChangeEventIfNeeded();
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nsString mFocusedValue;
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/** The state of the text editor (selection controller and the editor) **/
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TextControlState* mState;
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NS_IMETHOD SelectAll(nsPresContext* aPresContext);
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/**
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* Get the value, whether it is from the content or the frame.
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* @param aValue the value [out]
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* @param aIgnoreWrap whether to ignore the wrap attribute when getting the
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* value. If this is true, linebreaks will not be inserted even if
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* wrap=hard.
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*/
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void GetValueInternal(nsAString& aValue, bool aIgnoreWrap) const;
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/**
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* Setting the value.
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*
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* @param aValue String to set.
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* @param aOptions See TextControlState::ValueSetterOption.
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*/
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MOZ_CAN_RUN_SCRIPT nsresult
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SetValueInternal(const nsAString& aValue, const ValueSetterOptions& aOptions);
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/**
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* Common method to call from the various mutation observer methods.
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* aContent is a content node that's either the one that changed or its
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* parent; we should only respond to the change if aContent is non-anonymous.
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*/
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void ContentChanged(nsIContent* aContent);
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void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue, const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
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void SetDirectionFromValue(bool aNotify,
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const nsAString* aKnownValue = nullptr);
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/**
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* Get the mutable state of the element.
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*/
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bool IsMutable() const;
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/**
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* Returns whether the current value is the empty string.
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*
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* @return whether the current value is the empty string.
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*/
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bool IsValueEmpty() const {
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return State().HasState(ElementState::VALUE_EMPTY);
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}
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/**
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* A helper to get the current selection range. Will throw on the ErrorResult
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* if we have no editor state.
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*/
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void GetSelectionRange(uint32_t* aSelectionStart, uint32_t* aSelectionEnd,
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ErrorResult& aRv);
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void SetUserInteracted(bool) final;
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void UpdateValidityElementStates(bool aNotify);
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private:
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static void MapAttributesIntoRule(MappedDeclarationsBuilder&);
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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