зеркало из https://github.com/mozilla/gecko-dev.git
135 строки
4.3 KiB
C++
135 строки
4.3 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_HTMLOptionElement_h__
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#define mozilla_dom_HTMLOptionElement_h__
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#include "mozilla/Attributes.h"
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#include "nsGenericHTMLElement.h"
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#include "mozilla/dom/HTMLFormElement.h"
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namespace mozilla::dom {
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class HTMLSelectElement;
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class HTMLOptionElement final : public nsGenericHTMLElement {
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public:
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explicit HTMLOptionElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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static already_AddRefed<HTMLOptionElement> Option(
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const GlobalObject& aGlobal, const nsAString& aText,
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const Optional<nsAString>& aValue, bool aDefaultSelected, bool aSelected,
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ErrorResult& aError);
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NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLOptionElement, option)
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// nsISupports
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NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLOptionElement, nsGenericHTMLElement)
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using mozilla::dom::Element::GetText;
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bool Selected() const { return State().HasState(ElementState::CHECKED); }
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void SetSelected(bool aValue);
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void SetSelectedChanged(bool aValue) { mSelectedChanged = aValue; }
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nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
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int32_t aModType) const override;
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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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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 SetSelectedInternal(bool aValue, bool aNotify);
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/**
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* This callback is called by an optgroup on all its option elements whenever
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* its disabled state is changed so that option elements can know their
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* disabled state might have changed.
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*/
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void OptGroupDisabledChanged(bool aNotify);
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/**
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* Check our disabled content attribute and optgroup's (if it exists) disabled
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* state to decide whether our disabled flag should be toggled.
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*/
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void UpdateDisabledState(bool aNotify);
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nsresult BindToTree(BindContext&, nsINode& aParent) override;
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void UnbindFromTree(bool aNullParent = true) override;
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nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
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nsresult CopyInnerTo(mozilla::dom::Element* aDest);
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bool Disabled() const { return GetBoolAttr(nsGkAtoms::disabled); }
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void SetDisabled(bool aValue, ErrorResult& aRv) {
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SetHTMLBoolAttr(nsGkAtoms::disabled, aValue, aRv);
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}
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HTMLFormElement* GetForm();
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void GetRenderedLabel(nsAString& aLabel) {
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if (!GetAttr(nsGkAtoms::label, aLabel) || aLabel.IsEmpty()) {
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GetText(aLabel);
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}
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}
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void GetLabel(nsAString& aLabel) {
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if (!GetAttr(nsGkAtoms::label, aLabel)) {
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GetText(aLabel);
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}
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}
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void SetLabel(const nsAString& aLabel, ErrorResult& aError) {
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SetHTMLAttr(nsGkAtoms::label, aLabel, aError);
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}
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bool DefaultSelected() const { return HasAttr(nsGkAtoms::selected); }
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void SetDefaultSelected(bool aValue, ErrorResult& aRv) {
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SetHTMLBoolAttr(nsGkAtoms::selected, aValue, aRv);
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}
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void GetValue(nsAString& aValue) {
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if (!GetAttr(nsGkAtoms::value, aValue)) {
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GetText(aValue);
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}
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}
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void SetValue(const nsAString& aValue, ErrorResult& aRv) {
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SetHTMLAttr(nsGkAtoms::value, aValue, aRv);
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}
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void GetText(nsAString& aText);
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void SetText(const nsAString& aText, ErrorResult& aRv);
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int32_t Index();
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protected:
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virtual ~HTMLOptionElement();
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JSObject* WrapNode(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
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/**
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* Get the select content element that contains this option, this
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* intentionally does not return nsresult, all we care about is if
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* there's a select associated with this option or not.
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*/
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HTMLSelectElement* GetSelect();
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bool mSelectedChanged = false;
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// True only while we're under the SetOptionsSelectedByIndex call when our
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// "selected" attribute is changing and mSelectedChanged is false.
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bool mIsInSetDefaultSelected = false;
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_HTMLOptionElement_h__
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