92 lines
2.2 KiB
C++
92 lines
2.2 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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*/
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#ifndef MOZILLA_A11Y_ProxyWrappers_h
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#define MOZILLA_A11Y_ProxyWrappers_h
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#include "HyperTextAccessible.h"
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namespace mozilla {
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namespace a11y {
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class ProxyAccessibleWrap : public AccessibleWrap
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{
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public:
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ProxyAccessibleWrap(ProxyAccessible* aProxy) :
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AccessibleWrap(nullptr, nullptr)
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{
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mType = eProxyType;
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mBits.proxy = aProxy;
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}
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virtual void Shutdown() override
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{
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mBits.proxy = nullptr;
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mStateFlags |= eIsDefunct;
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}
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virtual void GetNativeInterface(void** aOutAccessible) override
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{
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mBits.proxy->GetCOMInterface(aOutAccessible);
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}
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};
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class HyperTextProxyAccessibleWrap : public HyperTextAccessibleWrap
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{
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public:
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HyperTextProxyAccessibleWrap(ProxyAccessible* aProxy) :
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HyperTextAccessibleWrap(nullptr, nullptr)
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{
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mType = eProxyType;
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mBits.proxy = aProxy;
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}
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virtual void Shutdown() override
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{
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mBits.proxy = nullptr;
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mStateFlags |= eIsDefunct;
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}
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virtual void GetNativeInterface(void** aOutAccessible) override
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{
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mBits.proxy->GetCOMInterface(aOutAccessible);
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}
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};
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class DocProxyAccessibleWrap : public HyperTextProxyAccessibleWrap
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{
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public:
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DocProxyAccessibleWrap(ProxyAccessible* aProxy) :
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HyperTextProxyAccessibleWrap(aProxy)
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{ mGenericTypes |= eDocument; }
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void AddID(uint32_t aID, AccessibleWrap* aAcc)
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{ mIDToAccessibleMap.Put(aID, aAcc); }
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void RemoveID(uint32_t aID) { mIDToAccessibleMap.Remove(aID); }
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AccessibleWrap* GetAccessibleByID(uint32_t aID) const
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{ return mIDToAccessibleMap.Get(aID); }
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private:
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/*
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* This provides a mapping from 32 bit id to accessible objects.
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*/
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nsDataHashtable<nsUint32HashKey, AccessibleWrap*> mIDToAccessibleMap;
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};
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template<typename T>
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inline ProxyAccessible*
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HyperTextProxyFor(T* aWrapper)
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{
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static_assert(mozilla::IsBaseOf<IUnknown, T>::value, "only IAccessible* should be passed in");
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auto wrapper = static_cast<HyperTextProxyAccessibleWrap*>(aWrapper);
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return wrapper->IsProxy() ? wrapper->Proxy() : nullptr;
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}
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}
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}
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#endif
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