120 lines
3.0 KiB
Objective-C
120 lines
3.0 KiB
Objective-C
/* -*- Mode: Objective-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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/* For documentation of the accessibility architecture,
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* see http://lxr.mozilla.org/seamonkey/source/accessible/accessible-docs.html
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*/
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#ifndef _AccessibleWrap_H_
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#define _AccessibleWrap_H_
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#include <objc/objc.h>
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#include "Accessible.h"
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#include "States.h"
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#include "nsCOMPtr.h"
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#include "nsTArray.h"
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#include "nsAutoPtr.h"
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#if defined(__OBJC__)
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@class mozAccessible;
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#endif
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namespace mozilla {
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namespace a11y {
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class AccessibleWrap : public Accessible
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{
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public: // construction, destruction
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AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc);
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virtual ~AccessibleWrap();
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/**
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* Get the native Obj-C object (mozAccessible).
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*/
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virtual void GetNativeInterface(void** aOutAccessible) override;
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/**
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* The objective-c |Class| type that this accessible's native object
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* should be instantied with. used on runtime to determine the
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* right type for this accessible's associated native object.
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*/
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virtual Class GetNativeType ();
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virtual void Shutdown () override;
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virtual void InvalidateChildren() override;
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virtual bool InsertChildAt(uint32_t aIdx, Accessible* aChild) override;
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virtual bool RemoveChild(Accessible* aAccessible) override;
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virtual nsresult HandleAccEvent(AccEvent* aEvent) override;
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/**
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* Ignored means that the accessible might still have children, but is not
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* displayed to the user. it also has no native accessible object represented
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* for it.
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*/
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bool IsIgnored();
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/**
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* Returns this accessible's all children, adhering to "flat" accessibles by
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* not returning their children.
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*/
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void GetUnignoredChildren(nsTArray<Accessible*>* aChildrenArray);
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Accessible* GetUnignoredParent() const;
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protected:
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/**
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* Return true if the parent doesn't have children to expose to AT.
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*/
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bool AncestorIsFlat();
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/**
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* Get the native object. Create it if needed.
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*/
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#if defined(__OBJC__)
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mozAccessible* GetNativeObject();
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#else
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id GetNativeObject();
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#endif
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private:
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/**
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* Our native object. Private because its creation is done lazily.
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* Don't access it directly. Ever. Unless you are GetNativeObject() or
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* Shutdown()
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*/
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#if defined(__OBJC__)
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// if we are in Objective-C, we use the actual Obj-C class.
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mozAccessible* mNativeObject;
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#else
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id mNativeObject;
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#endif
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/**
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* We have created our native. This does not mean there is one.
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* This can never go back to false.
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* We need it because checking whether we need a native object cost time.
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*/
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bool mNativeInited;
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};
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#if defined(__OBJC__)
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void FireNativeEvent(mozAccessible* aNativeAcc, uint32_t aEventType);
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#else
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void FireNativeEvent(id aNativeAcc, uint32_t aEventType);
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#endif
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Class GetTypeFromRole(roles::Role aRole);
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} // namespace a11y
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} // namespace mozilla
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#endif
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