зеркало из https://github.com/mozilla/gecko-dev.git
447 строки
16 KiB
C++
447 строки
16 KiB
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/. */
|
|
|
|
#ifndef mozilla_dom_HTMLTextAreaElement_h
|
|
#define mozilla_dom_HTMLTextAreaElement_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsITextControlElement.h"
|
|
#include "nsIControllers.h"
|
|
#include "nsIDOMNSEditableElement.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsGenericHTMLElement.h"
|
|
#include "nsStubMutationObserver.h"
|
|
#include "nsIConstraintValidation.h"
|
|
#include "mozilla/dom/HTMLFormElement.h"
|
|
#include "mozilla/dom/HTMLInputElementBinding.h"
|
|
#include "nsGkAtoms.h"
|
|
|
|
#include "mozilla/TextEditor.h"
|
|
#include "nsTextEditorState.h"
|
|
|
|
class nsIControllers;
|
|
class nsIDocument;
|
|
class nsPresContext;
|
|
class nsPresState;
|
|
|
|
namespace mozilla {
|
|
|
|
class EventChainPostVisitor;
|
|
class EventChainPreVisitor;
|
|
class EventStates;
|
|
|
|
namespace dom {
|
|
|
|
class HTMLFormSubmission;
|
|
|
|
class HTMLTextAreaElement final : public nsGenericHTMLFormElementWithState,
|
|
public nsITextControlElement,
|
|
public nsIDOMNSEditableElement,
|
|
public nsStubMutationObserver,
|
|
public nsIConstraintValidation
|
|
{
|
|
public:
|
|
using nsIConstraintValidation::GetValidationMessage;
|
|
|
|
explicit HTMLTextAreaElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
|
|
FromParser aFromParser = NOT_FROM_PARSER);
|
|
|
|
// nsISupports
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLTextAreaElement, textarea)
|
|
|
|
virtual int32_t TabIndexDefault() override;
|
|
|
|
// Element
|
|
virtual bool IsInteractiveHTMLContent(bool aIgnoreTabindex) const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// nsIDOMNSEditableElement
|
|
NS_IMETHOD GetEditor(nsIEditor** aEditor) override
|
|
{
|
|
nsCOMPtr<nsIEditor> editor = GetEditor();
|
|
editor.forget(aEditor);
|
|
return NS_OK;
|
|
}
|
|
NS_IMETHOD SetUserInput(const nsAString& aInput) override;
|
|
|
|
// nsIFormControl
|
|
NS_IMETHOD Reset() override;
|
|
NS_IMETHOD SubmitNamesValues(HTMLFormSubmission* aFormSubmission) override;
|
|
NS_IMETHOD SaveState() override;
|
|
virtual bool RestoreState(nsPresState* aState) override;
|
|
virtual bool IsDisabledForEvents(EventMessage aMessage) override;
|
|
|
|
virtual void FieldSetDisabledChanged(bool aNotify) override;
|
|
|
|
virtual EventStates IntrinsicState() const override;
|
|
|
|
// nsITextControlElemet
|
|
NS_IMETHOD SetValueChanged(bool aValueChanged) override;
|
|
NS_IMETHOD_(bool) IsSingleLineTextControl() const override;
|
|
NS_IMETHOD_(bool) IsTextArea() const override;
|
|
NS_IMETHOD_(bool) IsPasswordTextControl() const override;
|
|
NS_IMETHOD_(int32_t) GetCols() override;
|
|
NS_IMETHOD_(int32_t) GetWrapCols() override;
|
|
NS_IMETHOD_(int32_t) GetRows() override;
|
|
NS_IMETHOD_(void) GetDefaultValueFromContent(nsAString& aValue) override;
|
|
NS_IMETHOD_(bool) ValueChanged() const override;
|
|
NS_IMETHOD_(void) GetTextEditorValue(nsAString& aValue, bool aIgnoreWrap) const override;
|
|
NS_IMETHOD_(mozilla::TextEditor*) GetTextEditor() override;
|
|
NS_IMETHOD_(nsISelectionController*) GetSelectionController() override;
|
|
NS_IMETHOD_(nsFrameSelection*) GetConstFrameSelection() override;
|
|
NS_IMETHOD BindToFrame(nsTextControlFrame* aFrame) override;
|
|
NS_IMETHOD_(void) UnbindFromFrame(nsTextControlFrame* aFrame) override;
|
|
NS_IMETHOD CreateEditor() override;
|
|
NS_IMETHOD_(Element*) GetRootEditorNode() override;
|
|
NS_IMETHOD_(Element*) GetPlaceholderNode() override;
|
|
NS_IMETHOD_(Element*) GetPreviewNode() override;
|
|
NS_IMETHOD_(void) UpdateOverlayTextVisibility(bool aNotify) override;
|
|
NS_IMETHOD_(bool) GetPlaceholderVisibility() override;
|
|
NS_IMETHOD_(bool) GetPreviewVisibility() override;
|
|
NS_IMETHOD_(void) SetPreviewValue(const nsAString& aValue) override;
|
|
NS_IMETHOD_(void) GetPreviewValue(nsAString& aValue) override;
|
|
NS_IMETHOD_(void) EnablePreview() override;
|
|
NS_IMETHOD_(bool) IsPreviewEnabled() override;
|
|
NS_IMETHOD_(void) InitializeKeyboardEventListeners() override;
|
|
NS_IMETHOD_(void) OnValueChanged(bool aNotify, bool aWasInteractiveUserChange) override;
|
|
virtual void GetValueFromSetRangeText(nsAString& aValue) override;
|
|
virtual nsresult SetValueFromSetRangeText(const nsAString& aValue) override;
|
|
NS_IMETHOD_(bool) HasCachedSelection() override;
|
|
|
|
|
|
// nsIContent
|
|
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
|
|
nsIContent* aBindingParent,
|
|
bool aCompileEventHandlers) override;
|
|
virtual void UnbindFromTree(bool aDeep = true,
|
|
bool aNullParent = true) override;
|
|
virtual bool ParseAttribute(int32_t aNamespaceID,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
nsIPrincipal* aMaybeScriptedPrincipal,
|
|
nsAttrValue& aResult) override;
|
|
virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
|
|
virtual nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
|
|
int32_t aModType) const override;
|
|
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
|
|
|
|
virtual nsresult GetEventTargetParent(
|
|
EventChainPreVisitor& aVisitor) override;
|
|
virtual nsresult PreHandleEvent(EventChainVisitor& aVisitor) override;
|
|
virtual nsresult PostHandleEvent(
|
|
EventChainPostVisitor& aVisitor) override;
|
|
|
|
virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
|
|
|
|
virtual void DoneAddingChildren(bool aHaveNotified) override;
|
|
virtual bool IsDoneAddingChildren() override;
|
|
|
|
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
|
|
bool aPreallocateChildren) const override;
|
|
|
|
nsresult CopyInnerTo(Element* aDest, bool aPreallocateChildren);
|
|
|
|
/**
|
|
* Called when an attribute is about to be changed
|
|
*/
|
|
virtual nsresult BeforeSetAttr(int32_t aNameSpaceID, nsAtom* aName,
|
|
const nsAttrValueOrString* aValue,
|
|
bool aNotify) override;
|
|
|
|
// nsIMutationObserver
|
|
NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
|
|
NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
|
|
NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
|
|
NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
|
|
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLTextAreaElement,
|
|
nsGenericHTMLFormElementWithState)
|
|
|
|
virtual already_AddRefed<nsITextControlElement> GetAsTextControlElement() override
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txt = this;
|
|
return txt.forget();
|
|
}
|
|
|
|
// nsIConstraintValidation
|
|
bool IsTooLong();
|
|
bool IsTooShort();
|
|
bool IsValueMissing() const;
|
|
void UpdateTooLongValidityState();
|
|
void UpdateTooShortValidityState();
|
|
void UpdateValueMissingValidityState();
|
|
void UpdateBarredFromConstraintValidation();
|
|
nsresult GetValidationMessage(nsAString& aValidationMessage,
|
|
ValidityStateType aType) override;
|
|
|
|
// Web IDL binding methods
|
|
void GetAutocomplete(DOMString& aValue);
|
|
void SetAutocomplete(const nsAString& aValue, ErrorResult& aRv)
|
|
{
|
|
SetHTMLAttr(nsGkAtoms::autocomplete, aValue, aRv);
|
|
}
|
|
bool Autofocus()
|
|
{
|
|
return GetBoolAttr(nsGkAtoms::autofocus);
|
|
}
|
|
void SetAutofocus(bool aAutoFocus, ErrorResult& aError)
|
|
{
|
|
SetHTMLBoolAttr(nsGkAtoms::autofocus, aAutoFocus, aError);
|
|
}
|
|
uint32_t Cols()
|
|
{
|
|
return GetIntAttr(nsGkAtoms::cols, DEFAULT_COLS);
|
|
}
|
|
void SetCols(uint32_t aCols, ErrorResult& aError)
|
|
{
|
|
uint32_t cols = aCols ? aCols : DEFAULT_COLS;
|
|
SetUnsignedIntAttr(nsGkAtoms::cols, cols, DEFAULT_COLS, aError);
|
|
}
|
|
bool Disabled()
|
|
{
|
|
return GetBoolAttr(nsGkAtoms::disabled);
|
|
}
|
|
void SetDisabled(bool aDisabled, ErrorResult& aError)
|
|
{
|
|
SetHTMLBoolAttr(nsGkAtoms::disabled, aDisabled, aError);
|
|
}
|
|
// nsGenericHTMLFormElementWithState::GetForm is fine
|
|
using nsGenericHTMLFormElementWithState::GetForm;
|
|
int32_t MaxLength()
|
|
{
|
|
return GetIntAttr(nsGkAtoms::maxlength, -1);
|
|
}
|
|
void SetMaxLength(int32_t aMaxLength, ErrorResult& aError)
|
|
{
|
|
int32_t minLength = MinLength();
|
|
if (aMaxLength < 0 || (minLength >= 0 && aMaxLength < minLength)) {
|
|
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
} else {
|
|
SetHTMLIntAttr(nsGkAtoms::maxlength, aMaxLength, aError);
|
|
}
|
|
}
|
|
int32_t MinLength()
|
|
{
|
|
return GetIntAttr(nsGkAtoms::minlength, -1);
|
|
}
|
|
void SetMinLength(int32_t aMinLength, ErrorResult& aError)
|
|
{
|
|
int32_t maxLength = MaxLength();
|
|
if (aMinLength < 0 || (maxLength >= 0 && aMinLength > maxLength)) {
|
|
aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
} else {
|
|
SetHTMLIntAttr(nsGkAtoms::minlength, aMinLength, aError);
|
|
}
|
|
}
|
|
void GetName(nsAString& aName)
|
|
{
|
|
GetHTMLAttr(nsGkAtoms::name, aName);
|
|
}
|
|
void SetName(const nsAString& aName, ErrorResult& aError)
|
|
{
|
|
SetHTMLAttr(nsGkAtoms::name, aName, aError);
|
|
}
|
|
void GetPlaceholder(nsAString& aPlaceholder)
|
|
{
|
|
GetHTMLAttr(nsGkAtoms::placeholder, aPlaceholder);
|
|
}
|
|
void SetPlaceholder(const nsAString& aPlaceholder, ErrorResult& aError)
|
|
{
|
|
SetHTMLAttr(nsGkAtoms::placeholder, aPlaceholder, aError);
|
|
}
|
|
bool ReadOnly()
|
|
{
|
|
return GetBoolAttr(nsGkAtoms::readonly);
|
|
}
|
|
void SetReadOnly(bool aReadOnly, ErrorResult& aError)
|
|
{
|
|
SetHTMLBoolAttr(nsGkAtoms::readonly, aReadOnly, aError);
|
|
}
|
|
bool Required() const
|
|
{
|
|
return State().HasState(NS_EVENT_STATE_REQUIRED);
|
|
}
|
|
|
|
void SetRangeText(const nsAString& aReplacement, ErrorResult& aRv);
|
|
|
|
void SetRangeText(const nsAString& aReplacement, uint32_t aStart,
|
|
uint32_t aEnd, SelectionMode aSelectMode,
|
|
ErrorResult& aRv);
|
|
|
|
void SetRequired(bool aRequired, ErrorResult& aError)
|
|
{
|
|
SetHTMLBoolAttr(nsGkAtoms::required, aRequired, aError);
|
|
}
|
|
uint32_t Rows()
|
|
{
|
|
return GetIntAttr(nsGkAtoms::rows, DEFAULT_ROWS_TEXTAREA);
|
|
}
|
|
void SetRows(uint32_t aRows, ErrorResult& aError)
|
|
{
|
|
uint32_t rows = aRows ? aRows : DEFAULT_ROWS_TEXTAREA;
|
|
SetUnsignedIntAttr(nsGkAtoms::rows, rows, DEFAULT_ROWS_TEXTAREA, aError);
|
|
}
|
|
void GetWrap(nsAString& aWrap)
|
|
{
|
|
GetHTMLAttr(nsGkAtoms::wrap, aWrap);
|
|
}
|
|
void SetWrap(const nsAString& aWrap, ErrorResult& aError)
|
|
{
|
|
SetHTMLAttr(nsGkAtoms::wrap, aWrap, aError);
|
|
}
|
|
void GetType(nsAString& aType);
|
|
void GetDefaultValue(nsAString& aDefaultValue, ErrorResult& aError);
|
|
void SetDefaultValue(const nsAString& aDefaultValue, ErrorResult& aError);
|
|
void GetValue(nsAString& aValue);
|
|
void SetValue(const nsAString& aValue, ErrorResult& aError);
|
|
|
|
uint32_t GetTextLength();
|
|
|
|
// Override SetCustomValidity so we update our state properly when it's called
|
|
// via bindings.
|
|
void SetCustomValidity(const nsAString& aError);
|
|
|
|
void Select();
|
|
Nullable<uint32_t> GetSelectionStart(ErrorResult& aError);
|
|
void SetSelectionStart(const Nullable<uint32_t>& aSelectionStart, ErrorResult& aError);
|
|
Nullable<uint32_t> GetSelectionEnd(ErrorResult& aError);
|
|
void SetSelectionEnd(const Nullable<uint32_t>& aSelectionEnd, ErrorResult& aError);
|
|
void GetSelectionDirection(nsAString& aDirection, ErrorResult& aError);
|
|
void SetSelectionDirection(const nsAString& aDirection, ErrorResult& aError);
|
|
void SetSelectionRange(uint32_t aSelectionStart, uint32_t aSelectionEnd, const Optional<nsAString>& aDirecton, ErrorResult& aError);
|
|
nsIControllers* GetControllers(ErrorResult& aError);
|
|
// XPCOM adapter function widely used throughout code, leaving it as is.
|
|
nsresult GetControllers(nsIControllers** aResult);
|
|
|
|
nsIEditor* GetEditor()
|
|
{
|
|
return mState.GetTextEditor();
|
|
}
|
|
|
|
protected:
|
|
virtual ~HTMLTextAreaElement() {}
|
|
|
|
// get rid of the compiler warning
|
|
using nsGenericHTMLFormElementWithState::IsSingleLineTextControl;
|
|
|
|
virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
|
|
|
|
nsCOMPtr<nsIControllers> mControllers;
|
|
/** Whether or not the value has changed since its default value was given. */
|
|
bool mValueChanged;
|
|
/** Whether or not the last change to the value was made interactively by the user. */
|
|
bool mLastValueChangeWasInteractive;
|
|
/** Whether or not we are already handling select event. */
|
|
bool mHandlingSelect;
|
|
/** Whether or not we are done adding children (always true if not
|
|
created by a parser */
|
|
bool mDoneAddingChildren;
|
|
/** Whether state restoration should be inhibited in DoneAddingChildren. */
|
|
bool mInhibitStateRestoration;
|
|
/** Whether our disabled state has changed from the default **/
|
|
bool mDisabledChanged;
|
|
/** Whether we should make :-moz-ui-invalid apply on the element. **/
|
|
bool mCanShowInvalidUI;
|
|
/** Whether we should make :-moz-ui-valid apply on the element. **/
|
|
bool mCanShowValidUI;
|
|
bool mIsPreviewEnabled;
|
|
|
|
nsContentUtils::AutocompleteAttrState mAutocompleteAttrState;
|
|
|
|
void FireChangeEventIfNeeded();
|
|
|
|
nsString mFocusedValue;
|
|
|
|
/** The state of the text editor (selection controller and the editor) **/
|
|
nsTextEditorState mState;
|
|
|
|
NS_IMETHOD SelectAll(nsPresContext* aPresContext);
|
|
/**
|
|
* Get the value, whether it is from the content or the frame.
|
|
* @param aValue the value [out]
|
|
* @param aIgnoreWrap whether to ignore the wrap attribute when getting the
|
|
* value. If this is true, linebreaks will not be inserted even if
|
|
* wrap=hard.
|
|
*/
|
|
void GetValueInternal(nsAString& aValue, bool aIgnoreWrap) const;
|
|
|
|
/**
|
|
* Setting the value.
|
|
*
|
|
* @param aValue String to set.
|
|
* @param aFlags See nsTextEditorState::SetValueFlags.
|
|
*/
|
|
nsresult SetValueInternal(const nsAString& aValue, uint32_t aFlags);
|
|
|
|
/**
|
|
* Common method to call from the various mutation observer methods.
|
|
* aContent is a content node that's either the one that changed or its
|
|
* parent; we should only respond to the change if aContent is non-anonymous.
|
|
*/
|
|
void ContentChanged(nsIContent* aContent);
|
|
|
|
virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsAtom *aName,
|
|
const nsAttrValue* aValue,
|
|
const nsAttrValue* aOldValue,
|
|
nsIPrincipal* aSubjectPrincipal,
|
|
bool aNotify) override;
|
|
|
|
/**
|
|
* Return if an element should have a specific validity UI
|
|
* (with :-moz-ui-invalid and :-moz-ui-valid pseudo-classes).
|
|
*
|
|
* @return Whether the element should have a validity UI.
|
|
*/
|
|
bool ShouldShowValidityUI() const {
|
|
/**
|
|
* Always show the validity UI if the form has already tried to be submitted
|
|
* but was invalid.
|
|
*
|
|
* Otherwise, show the validity UI if the element's value has been changed.
|
|
*/
|
|
|
|
if (mForm && mForm->HasEverTriedInvalidSubmit()) {
|
|
return true;
|
|
}
|
|
|
|
return mValueChanged;
|
|
}
|
|
|
|
/**
|
|
* Get the mutable state of the element.
|
|
*/
|
|
bool IsMutable() const;
|
|
|
|
/**
|
|
* Returns whether the current value is the empty string.
|
|
*
|
|
* @return whether the current value is the empty string.
|
|
*/
|
|
bool IsValueEmpty() const;
|
|
|
|
/**
|
|
* A helper to get the current selection range. Will throw on the ErrorResult
|
|
* if we have no editor state.
|
|
*/
|
|
void GetSelectionRange(uint32_t* aSelectionStart,
|
|
uint32_t* aSelectionEnd,
|
|
ErrorResult& aRv);
|
|
|
|
private:
|
|
static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
|
|
GenericSpecifiedValues* aGenericData);
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif
|
|
|