зеркало из https://github.com/mozilla/gecko-dev.git
422 строки
15 KiB
C++
422 строки
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 "nsIDOMHTMLTextAreaElement.h"
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#include "nsITextControlElement.h"
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#include "nsIControllers.h"
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#include "nsIDOMNSEditableElement.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 "nsIConstraintValidation.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/dom/HTMLInputElementBinding.h"
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#include "nsGkAtoms.h"
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#include "nsTextEditorState.h"
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class nsIControllers;
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class nsIDocument;
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class nsPresContext;
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class nsPresState;
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namespace mozilla {
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class EventChainPostVisitor;
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class EventChainPreVisitor;
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class EventStates;
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namespace dom {
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class HTMLFormSubmission;
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class HTMLTextAreaElement final : public nsGenericHTMLFormElementWithState,
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public nsIDOMHTMLTextAreaElement,
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public nsITextControlElement,
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public nsIDOMNSEditableElement,
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public nsStubMutationObserver,
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public nsIConstraintValidation
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{
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public:
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using nsIConstraintValidation::GetValidationMessage;
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explicit HTMLTextAreaElement(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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virtual int32_t TabIndexDefault() override;
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// Element
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virtual bool IsInteractiveHTMLContent(bool aIgnoreTabindex) const override
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{
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return true;
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}
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// nsIDOMHTMLTextAreaElement
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NS_DECL_NSIDOMHTMLTEXTAREAELEMENT
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// nsIDOMNSEditableElement
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NS_IMETHOD GetEditor(nsIEditor** aEditor) override
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{
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return nsGenericHTMLElement::GetEditor(aEditor);
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}
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NS_IMETHOD SetUserInput(const nsAString& aInput) override;
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// nsIFormControl
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NS_IMETHOD Reset() override;
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NS_IMETHOD SubmitNamesValues(HTMLFormSubmission* aFormSubmission) override;
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NS_IMETHOD SaveState() override;
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virtual bool RestoreState(nsPresState* aState) override;
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virtual bool IsDisabledForEvents(EventMessage aMessage) override;
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virtual void FieldSetDisabledChanged(bool aNotify) override;
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virtual EventStates IntrinsicState() const override;
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// nsITextControlElemet
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NS_IMETHOD SetValueChanged(bool aValueChanged) override;
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NS_IMETHOD_(bool) IsSingleLineTextControl() const override;
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NS_IMETHOD_(bool) IsTextArea() const override;
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NS_IMETHOD_(bool) IsPlainTextControl() const override;
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NS_IMETHOD_(bool) IsPasswordTextControl() const override;
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NS_IMETHOD_(int32_t) GetCols() override;
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NS_IMETHOD_(int32_t) GetWrapCols() override;
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NS_IMETHOD_(int32_t) GetRows() override;
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NS_IMETHOD_(void) GetDefaultValueFromContent(nsAString& aValue) override;
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NS_IMETHOD_(bool) ValueChanged() const override;
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NS_IMETHOD_(void) GetTextEditorValue(nsAString& aValue, bool aIgnoreWrap) const override;
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NS_IMETHOD_(nsIEditor*) GetTextEditor() override;
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NS_IMETHOD_(nsISelectionController*) GetSelectionController() override;
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NS_IMETHOD_(nsFrameSelection*) GetConstFrameSelection() override;
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NS_IMETHOD BindToFrame(nsTextControlFrame* aFrame) override;
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NS_IMETHOD_(void) UnbindFromFrame(nsTextControlFrame* aFrame) override;
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NS_IMETHOD CreateEditor() override;
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NS_IMETHOD_(Element*) GetRootEditorNode() override;
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NS_IMETHOD_(Element*) CreatePlaceholderNode() override;
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NS_IMETHOD_(Element*) GetPlaceholderNode() override;
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NS_IMETHOD_(Element*) CreatePreviewNode() override;
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NS_IMETHOD_(Element*) GetPreviewNode() override;
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NS_IMETHOD_(void) UpdateOverlayTextVisibility(bool aNotify) override;
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NS_IMETHOD_(bool) GetPlaceholderVisibility() override;
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NS_IMETHOD_(bool) GetPreviewVisibility() override;
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NS_IMETHOD_(void) SetPreviewValue(const nsAString& aValue) override;
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NS_IMETHOD_(void) GetPreviewValue(nsAString& aValue) override;
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NS_IMETHOD_(void) EnablePreview() override;
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NS_IMETHOD_(bool) IsPreviewEnabled() override;
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NS_IMETHOD_(void) InitializeKeyboardEventListeners() override;
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NS_IMETHOD_(void) OnValueChanged(bool aNotify, bool aWasInteractiveUserChange) override;
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virtual void GetValueFromSetRangeText(nsAString& aValue) override;
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virtual nsresult SetValueFromSetRangeText(const nsAString& aValue) override;
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NS_IMETHOD_(bool) HasCachedSelection() override;
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// nsIContent
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virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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virtual bool ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult) override;
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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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virtual nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
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int32_t aModType) const override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
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virtual nsresult GetEventTargetParent(
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EventChainPreVisitor& aVisitor) override;
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virtual nsresult PreHandleEvent(EventChainVisitor& aVisitor) override;
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virtual nsresult PostHandleEvent(
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EventChainPostVisitor& aVisitor) override;
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virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
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virtual void DoneAddingChildren(bool aHaveNotified) override;
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virtual bool IsDoneAddingChildren() override;
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) const override;
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nsresult CopyInnerTo(Element* aDest, bool aPreallocateChildren);
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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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virtual nsresult BeforeSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAttrValueOrString* aValue,
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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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nsGenericHTMLFormElementWithState)
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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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nsresult GetValidationMessage(nsAString& aValidationMessage,
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ValidityStateType aType) override;
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// Web IDL binding methods
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bool Autofocus()
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{
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return GetBoolAttr(nsGkAtoms::autofocus);
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}
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void SetAutofocus(bool aAutoFocus, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::autofocus, aAutoFocus, aError);
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}
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uint32_t Cols()
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{
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return GetIntAttr(nsGkAtoms::cols, DEFAULT_COLS);
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}
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void SetCols(uint32_t aCols, ErrorResult& aError)
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{
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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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bool Disabled()
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{
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return GetBoolAttr(nsGkAtoms::disabled);
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}
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void SetDisabled(bool aDisabled, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::disabled, aDisabled, aError);
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}
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// nsGenericHTMLFormElementWithState::GetForm is fine
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using nsGenericHTMLFormElementWithState::GetForm;
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int32_t MaxLength()
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{
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return GetIntAttr(nsGkAtoms::maxlength, -1);
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}
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void SetMaxLength(int32_t aMaxLength, ErrorResult& aError)
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{
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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()
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{
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return GetIntAttr(nsGkAtoms::minlength, -1);
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}
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void SetMinLength(int32_t aMinLength, ErrorResult& aError)
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{
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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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// XPCOM GetName is fine
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void SetName(const nsAString& aName, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::name, aName, aError);
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}
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// XPCOM GetPlaceholder is fine
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void SetPlaceholder(const nsAString& aPlaceholder, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::placeholder, aPlaceholder, aError);
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}
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bool ReadOnly()
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{
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return GetBoolAttr(nsGkAtoms::readonly);
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}
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void SetReadOnly(bool aReadOnly, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::readonly, aReadOnly, aError);
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}
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bool Required()
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{
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return GetBoolAttr(nsGkAtoms::required);
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}
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void SetRangeText(const nsAString& aReplacement, ErrorResult& aRv);
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void SetRangeText(const nsAString& aReplacement, uint32_t aStart,
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uint32_t aEnd, SelectionMode aSelectMode,
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ErrorResult& aRv);
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void SetRequired(bool aRequired, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::required, aRequired, aError);
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}
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uint32_t Rows()
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{
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return GetIntAttr(nsGkAtoms::rows, DEFAULT_ROWS_TEXTAREA);
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}
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void SetRows(uint32_t aRows, ErrorResult& aError)
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{
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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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// XPCOM GetWrap is fine
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void SetWrap(const nsAString& aWrap, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::wrap, aWrap, aError);
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}
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// XPCOM GetType is fine
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// XPCOM GetDefaultValue is fine
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void SetDefaultValue(const nsAString& aDefaultValue, ErrorResult& aError);
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// XPCOM GetValue/SetValue are fine
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uint32_t GetTextLength();
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// nsIConstraintValidation::WillValidate is fine.
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// nsIConstraintValidation::Validity() is fine.
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// nsIConstraintValidation::GetValidationMessage() is fine.
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// nsIConstraintValidation::CheckValidity() is fine.
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using nsIConstraintValidation::CheckValidity;
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using nsIConstraintValidation::ReportValidity;
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// nsIConstraintValidation::SetCustomValidity() is fine.
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// XPCOM Select is fine
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Nullable<uint32_t> GetSelectionStart(ErrorResult& aError);
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void SetSelectionStart(const Nullable<uint32_t>& aSelectionStart, ErrorResult& aError);
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Nullable<uint32_t> GetSelectionEnd(ErrorResult& aError);
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void SetSelectionEnd(const Nullable<uint32_t>& aSelectionEnd, ErrorResult& aError);
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void GetSelectionDirection(nsAString& aDirection, ErrorResult& aError);
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void SetSelectionDirection(const nsAString& aDirection, ErrorResult& aError);
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void SetSelectionRange(uint32_t aSelectionStart, uint32_t aSelectionEnd, const Optional<nsAString>& aDirecton, ErrorResult& aError);
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nsIControllers* GetControllers(ErrorResult& aError);
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nsIEditor* GetEditor()
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{
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return mState.GetEditor();
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}
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protected:
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virtual ~HTMLTextAreaElement() {}
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// get rid of the compiler warning
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using nsGenericHTMLFormElementWithState::IsSingleLineTextControl;
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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nsCOMPtr<nsIControllers> mControllers;
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/** Whether or not the value has changed since its default value was given. */
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bool mValueChanged;
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/** Whether or not the last change to the value was made interactively by the user. */
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bool mLastValueChangeWasInteractive;
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/** Whether or not we are already handling select event. */
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bool mHandlingSelect;
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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;
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/** Whether we should make :-moz-ui-invalid apply on the element. **/
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bool mCanShowInvalidUI;
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/** Whether we should make :-moz-ui-valid apply on the element. **/
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bool mCanShowValidUI;
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bool mIsPreviewEnabled;
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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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nsTextEditorState 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 aFlags See nsTextEditorState::SetValueFlags.
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*/
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nsresult SetValueInternal(const nsAString& aValue, uint32_t aFlags);
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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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virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom *aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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bool aNotify) override;
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/**
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* Return if an element should have a specific validity UI
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* (with :-moz-ui-invalid and :-moz-ui-valid pseudo-classes).
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*
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* @return Whether the element should have a validity UI.
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*/
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bool ShouldShowValidityUI() const {
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/**
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* Always show the validity UI if the form has already tried to be submitted
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* but was invalid.
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*
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* Otherwise, show the validity UI if the element's value has been changed.
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*/
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if (mForm && mForm->HasEverTriedInvalidSubmit()) {
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return true;
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}
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return mValueChanged;
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}
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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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/**
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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,
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uint32_t* aSelectionEnd,
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ErrorResult& aRv);
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private:
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static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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GenericSpecifiedValues* aGenericData);
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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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