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1. This requires exposing radiogroup's focusedItem property to C++. Unfortunately, there's no existing equivalent in nsIDOMXULSelectControlItemElement. radiogroup is the only element that needs this, so a new interface has been created for it. 2. Accessibility uses focusedItem instead of selectedItem when setting focus. 3. When an item is focused, accessibility needs to be notified. This is done using a DOMMenuItemActive event. Differential Revision: https://phabricator.services.mozilla.com/D15295 --HG-- extra : moz-landing-system : lando
187 lines
5.1 KiB
C++
187 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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_A11Y_XULFormControlAccessible_H_
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#define MOZILLA_A11Y_XULFormControlAccessible_H_
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// NOTE: alphabetically ordered
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#include "AccessibleWrap.h"
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#include "FormControlAccessible.h"
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#include "HyperTextAccessibleWrap.h"
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#include "XULSelectControlAccessible.h"
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namespace mozilla {
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namespace a11y {
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/**
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* Used for XUL button.
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*
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* @note Don't inherit from LeafAccessible - it doesn't allow children
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* and a button can have a dropmarker child.
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*/
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class XULButtonAccessible : public AccessibleWrap {
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public:
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enum { eAction_Click = 0 };
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XULButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// nsISupports
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NS_INLINE_DECL_REFCOUNTING_INHERITED(XULButtonAccessible, AccessibleWrap)
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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virtual uint64_t NativeState() const override;
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// ActionAccessible
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virtual uint8_t ActionCount() const override;
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virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
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virtual bool DoAction(uint8_t aIndex) const override;
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// Widgets
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virtual bool IsWidget() const override;
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virtual bool IsActiveWidget() const override;
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virtual bool AreItemsOperable() const override;
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virtual Accessible* ContainerWidget() const override;
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virtual bool IsAcceptableChild(nsIContent* aEl) const override;
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protected:
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virtual ~XULButtonAccessible();
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// XULButtonAccessible
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bool ContainsMenu() const;
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};
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/**
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* Used for XUL dropmarker element.
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*/
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class XULDropmarkerAccessible : public LeafAccessible {
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public:
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enum { eAction_Click = 0 };
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XULDropmarkerAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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virtual uint64_t NativeState() const override;
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// ActionAccessible
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virtual uint8_t ActionCount() const override;
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virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
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virtual bool DoAction(uint8_t aIndex) const override;
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private:
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bool DropmarkerOpen(bool aToggleOpen) const;
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};
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/**
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* Used for XUL groupbox element.
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*/
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class XULGroupboxAccessible final : public AccessibleWrap {
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public:
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XULGroupboxAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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virtual Relation RelationByType(RelationType aType) const override;
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protected:
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// Accessible
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virtual ENameValueFlag NativeName(nsString& aName) const override;
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};
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/**
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* Used for XUL radio element (radio button).
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*/
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class XULRadioButtonAccessible : public RadioButtonAccessible {
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public:
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XULRadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual uint64_t NativeState() const override;
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virtual uint64_t NativeInteractiveState() const override;
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// Widgets
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virtual Accessible* ContainerWidget() const override;
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};
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/**
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* Used for XUL radiogroup element.
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*/
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class XULRadioGroupAccessible : public XULSelectControlAccessible {
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public:
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XULRadioGroupAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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virtual uint64_t NativeInteractiveState() const override;
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// Widgets
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virtual bool IsWidget() const override;
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virtual bool IsActiveWidget() const override;
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virtual bool AreItemsOperable() const override;
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virtual Accessible* CurrentItem() const override;
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virtual void SetCurrentItem(const Accessible* aItem) override;
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};
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/**
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* Used for XUL statusbar element.
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*/
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class XULStatusBarAccessible : public AccessibleWrap {
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public:
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XULStatusBarAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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};
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/**
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* Used for XUL toolbarbutton element.
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*/
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class XULToolbarButtonAccessible : public XULButtonAccessible {
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public:
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XULToolbarButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual void GetPositionAndSizeInternal(int32_t* aPosInSet,
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int32_t* aSetSize) override;
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// nsXULToolbarButtonAccessible
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static bool IsSeparator(Accessible* aAccessible);
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// Widgets
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virtual bool IsAcceptableChild(nsIContent* aEl) const override;
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};
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/**
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* Used for XUL toolbar element.
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*/
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class XULToolbarAccessible : public AccessibleWrap {
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public:
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XULToolbarAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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protected:
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// Accessible
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virtual ENameValueFlag NativeName(nsString& aName) const override;
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};
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/**
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* Used for XUL toolbarseparator element.
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*/
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class XULToolbarSeparatorAccessible : public LeafAccessible {
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public:
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XULToolbarSeparatorAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// Accessible
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virtual mozilla::a11y::role NativeRole() const override;
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virtual uint64_t NativeState() const override;
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};
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} // namespace a11y
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} // namespace mozilla
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#endif
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