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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_A11Y_HTMLFormControlAccessible_H_
#define MOZILLA_A11Y_HTMLFormControlAccessible_H_
#include "FormControlAccessible.h"
#include "HyperTextAccessible.h"
#include "mozilla/a11y/AccTypes.h"
#include "mozilla/dom/Element.h"
#include "AccAttributes.h"
#include "nsAccUtils.h"
#include "Relation.h"
namespace mozilla {
class EditorBase;
namespace a11y {
/**
* Accessible for HTML input@type="radio" element.
*/
class HTMLRadioButtonAccessible : public RadioButtonAccessible {
public:
HTMLRadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc)
: RadioButtonAccessible(aContent, aDoc) {
// Ignore "RadioStateChange" DOM event in lieu of document observer
// state change notification.
mStateFlags |= eIgnoreDOMUIEvent;
mType = eHTMLRadioButtonType;
}
// LocalAccessible
virtual uint64_t NativeState() const override;
virtual Relation RelationByType(RelationType aType) const override;
protected:
virtual void GetPositionAndSetSize(int32_t* aPosInSet,
int32_t* aSetSize) override;
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
private:
Relation ComputeGroupAttributes(int32_t* aPosInSet, int32_t* aSetSize) const;
};
/**
* Accessible for HTML input@type="button", @type="submit", @type="image"
* and HTML button elements.
*/
class HTMLButtonAccessible : public HyperTextAccessible {
public:
enum { eAction_Click = 0 };
HTMLButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual void Value(nsString& aValue) const override;
virtual mozilla::a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
// ActionAccessible
virtual bool HasPrimaryAction() const override;
virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
// Widgets
virtual bool IsWidget() const override;
protected:
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
};
/**
* Accessible for HTML input@type="text", input@type="password", textarea
* and other HTML text controls.
*/
class HTMLTextFieldAccessible : public HyperTextAccessible {
public:
enum { eAction_Click = 0 };
HTMLTextFieldAccessible(nsIContent* aContent, DocAccessible* aDoc);
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTextFieldAccessible,
HyperTextAccessible)
// HyperTextAccessible
MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual already_AddRefed<EditorBase> GetEditor()
const override;
// LocalAccessible
virtual void Value(nsString& aValue) const override;
virtual void ApplyARIAState(uint64_t* aState) const override;
virtual mozilla::a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
virtual already_AddRefed<AccAttributes> NativeAttributes() override;
virtual bool AttributeChangesState(nsAtom* aAttribute) override;
// ActionAccessible
virtual bool HasPrimaryAction() const override;
virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
virtual bool DoAction(uint8_t aIndex) const override;
// Widgets
virtual bool IsWidget() const override;
virtual LocalAccessible* ContainerWidget() const override;
protected:
virtual ~HTMLTextFieldAccessible() {}
// LocalAccessible
virtual ENameValueFlag DirectName(nsString& aName) const override;
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
};
/**
* Accessible for input@type="file" element.
*/
class HTMLFileInputAccessible : public HyperTextAccessible {
public:
HTMLFileInputAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual mozilla::a11y::role NativeRole() const override;
virtual bool IsAcceptableChild(nsIContent* aEl) const override;
virtual ENameValueFlag DirectName(nsString& aName) const override;
virtual bool HasPrimaryAction() const override;
virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
virtual bool IsWidget() const override;
};
/**
* Used for HTML input@type="number".
*/
class HTMLSpinnerAccessible final : public HTMLTextFieldAccessible {
public:
HTMLSpinnerAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HTMLTextFieldAccessible(aContent, aDoc) {
mGenericTypes |= eNumericValue;
}
// LocalAccessible
virtual mozilla::a11y::role NativeRole() const override;
virtual void Value(nsString& aValue) const override;
virtual double MaxValue() const override;
virtual double MinValue() const override;
virtual double CurValue() const override;
virtual double Step() const override;
virtual bool SetCurValue(double aValue) override;
};
/**
* Used for input@type="range" element.
*/
class HTMLRangeAccessible : public LeafAccessible {
public:
HTMLRangeAccessible(nsIContent* aContent, DocAccessible* aDoc)
: LeafAccessible(aContent, aDoc) {
mGenericTypes |= eNumericValue;
}
// LocalAccessible
virtual void Value(nsString& aValue) const override;
virtual mozilla::a11y::role NativeRole() const override;
// Value
virtual double MaxValue() const override;
virtual double MinValue() const override;
virtual double CurValue() const override;
virtual double Step() const override;
virtual bool SetCurValue(double aValue) override;
// Widgets
virtual bool IsWidget() const override;
};
/**
* Accessible for HTML fieldset element.
*/
class HTMLGroupboxAccessible : public HyperTextAccessible {
public:
HTMLGroupboxAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual mozilla::a11y::role NativeRole() const override;
virtual Relation RelationByType(RelationType aType) const override;
protected:
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
// HTMLGroupboxAccessible
nsIContent* GetLegend() const;
};
/**
* Accessible for HTML legend element.
*/
class HTMLLegendAccessible : public HyperTextAccessible {
public:
HTMLLegendAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual Relation RelationByType(RelationType aType) const override;
};
/**
* Accessible for HTML5 figure element.
*/
class HTMLFigureAccessible : public HyperTextAccessible {
public:
HTMLFigureAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual Relation RelationByType(RelationType aType) const override;
protected:
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
// HTMLLegendAccessible
nsIContent* Caption() const;
};
/**
* Accessible for HTML5 figcaption element.
*/
class HTMLFigcaptionAccessible : public HyperTextAccessible {
public:
HTMLFigcaptionAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual Relation RelationByType(RelationType aType) const override;
};
/**
* Used for HTML form element.
*/
class HTMLFormAccessible : public HyperTextAccessible {
public:
HTMLFormAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessible(aContent, aDoc) {}
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLFormAccessible, HyperTextAccessible)
// LocalAccessible
virtual a11y::role NativeRole() const override;
protected:
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
virtual ~HTMLFormAccessible() = default;
};
/**
* Accessible for HTML progress element.
*/
class HTMLProgressAccessible : public LeafAccessible {
public:
HTMLProgressAccessible(nsIContent* aContent, DocAccessible* aDoc)
: LeafAccessible(aContent, aDoc) {
// Ignore 'ValueChange' DOM event in lieu of @value attribute change
// notifications.
mStateFlags |= eIgnoreDOMUIEvent;
mGenericTypes |= eNumericValue;
mType = eProgressType;
}
// LocalAccessible
virtual void Value(nsString& aValue) const override;
virtual mozilla::a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
// Value
virtual double MaxValue() const override;
virtual double MinValue() const override;
virtual double CurValue() const override;
virtual double Step() const override;
virtual bool SetCurValue(double aValue) override;
// Widgets
virtual bool IsWidget() const override;
protected:
virtual ~HTMLProgressAccessible() {}
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
};
/**
* Accessible for HTML meter element.
*/
class HTMLMeterAccessible : public LeafAccessible {
public:
HTMLMeterAccessible(nsIContent* aContent, DocAccessible* aDoc)
: LeafAccessible(aContent, aDoc) {
// Ignore 'ValueChange' DOM event in lieu of @value attribute change
// notifications.
mStateFlags |= eIgnoreDOMUIEvent;
mGenericTypes |= eNumericValue;
mType = eProgressType;
}
// LocalAccessible
virtual void Value(nsString& aValue) const override;
virtual mozilla::a11y::role NativeRole() const override;
// Value
virtual double MaxValue() const override;
virtual double MinValue() const override;
virtual double CurValue() const override;
virtual bool SetCurValue(double aValue) override;
// Widgets
virtual bool IsWidget() const override;
// HTMLMeterAccessible
/**
* Given the low, high, and optimum attrs from DOM, return an int
* that indicates which region the current value falls in:
* - Optimal (1)
* - Suboptimal (0)
* - Critical, or "even less good" by the spec (-1)
*/
int32_t ValueRegion() const;
protected:
virtual ~HTMLMeterAccessible() {}
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
AttrModType aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
};
/**
* Accessible for HTML date/time inputs.
*/
template <a11y::role R>
class HTMLDateTimeAccessible : public HyperTextAccessible {
public:
HTMLDateTimeAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessible(aContent, aDoc) {
mType = eHTMLDateTimeFieldType;
}
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLDateTimeAccessible,
HyperTextAccessible)
// LocalAccessible
virtual mozilla::a11y::role NativeRole() const override { return R; }
virtual already_AddRefed<AccAttributes> NativeAttributes() override {
RefPtr<AccAttributes> attributes = HyperTextAccessible::NativeAttributes();
// Unfortunately, an nsStaticAtom can't be passed as a
// template argument, so fetch the type from the DOM.
if (const nsAttrValue* attr =
mContent->AsElement()->GetParsedAttr(nsGkAtoms::type)) {
RefPtr<nsAtom> inputType = attr->GetAsAtom();
if (inputType) {
attributes->SetAttribute(nsGkAtoms::textInputType, inputType);
}
}
return attributes.forget();
}
// Widgets
virtual bool IsWidget() const override { return true; }
protected:
virtual ~HTMLDateTimeAccessible() {}
};
} // namespace a11y
} // namespace mozilla
#endif
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