зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
4.5 KiB
C++
112 строки
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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_HandlerProvider_h
|
|
#define mozilla_a11y_HandlerProvider_h
|
|
|
|
#include "mozilla/a11y/AccessibleHandler.h"
|
|
#include "mozilla/AlreadyAddRefed.h"
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/mscom/IHandlerProvider.h"
|
|
#include "mozilla/mscom/Ptr.h"
|
|
#include "mozilla/mscom/StructStream.h"
|
|
#include "mozilla/Mutex.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "HandlerData.h"
|
|
|
|
struct NEWEST_IA2_INTERFACE;
|
|
|
|
namespace mozilla {
|
|
|
|
namespace mscom {
|
|
|
|
class StructToStream;
|
|
|
|
} // namespace mscom
|
|
|
|
namespace a11y {
|
|
|
|
class HandlerProvider final : public IGeckoBackChannel,
|
|
public mscom::IHandlerProvider {
|
|
public:
|
|
HandlerProvider(REFIID aIid, mscom::InterceptorTargetPtr<IUnknown> aTarget);
|
|
|
|
// IUnknown
|
|
STDMETHODIMP QueryInterface(REFIID riid, void** ppv) override;
|
|
STDMETHODIMP_(ULONG) AddRef() override;
|
|
STDMETHODIMP_(ULONG) Release() override;
|
|
|
|
// IHandlerProvider
|
|
STDMETHODIMP GetHandler(NotNull<CLSID*> aHandlerClsid) override;
|
|
STDMETHODIMP GetHandlerPayloadSize(NotNull<mscom::IInterceptor*> aInterceptor,
|
|
NotNull<DWORD*> aOutPayloadSize) override;
|
|
STDMETHODIMP WriteHandlerPayload(NotNull<mscom::IInterceptor*> aInterceptor,
|
|
NotNull<IStream*> aStream) override;
|
|
STDMETHODIMP_(REFIID) MarshalAs(REFIID aIid) override;
|
|
STDMETHODIMP DisconnectHandlerRemotes() override;
|
|
STDMETHODIMP_(REFIID)
|
|
GetEffectiveOutParamIid(REFIID aCallIid, ULONG aCallMethod) override;
|
|
STDMETHODIMP NewInstance(
|
|
REFIID aIid, mscom::InterceptorTargetPtr<IUnknown> aTarget,
|
|
NotNull<mscom::IHandlerProvider**> aOutNewPayload) override;
|
|
|
|
// IGeckoBackChannel
|
|
STDMETHODIMP put_HandlerControl(long aPid, IHandlerControl* aCtrl) override;
|
|
STDMETHODIMP Refresh(DynamicIA2Data* aOutData) override;
|
|
STDMETHODIMP get_AllTextInfo(BSTR* aText, IAccessibleHyperlink*** aHyperlinks,
|
|
long* aNHyperlinks, IA2TextSegment** aAttribRuns,
|
|
long* aNAttribRuns) override;
|
|
STDMETHODIMP get_RelationsInfo(IARelationData** aRelations,
|
|
long* aNRelations) override;
|
|
STDMETHODIMP get_AllChildren(AccChildData** aChildren,
|
|
ULONG* aNChildren) override;
|
|
|
|
private:
|
|
~HandlerProvider() = default;
|
|
|
|
void SetHandlerControlOnMainThread(
|
|
DWORD aPid, mscom::ProxyUniquePtr<IHandlerControl> aCtrl);
|
|
void GetAndSerializePayload(const MutexAutoLock&,
|
|
NotNull<mscom::IInterceptor*> aInterceptor);
|
|
void BuildStaticIA2Data(NotNull<mscom::IInterceptor*> aInterceptor,
|
|
StaticIA2Data* aOutData);
|
|
void BuildDynamicIA2Data(DynamicIA2Data* aOutIA2Data);
|
|
void BuildInitialIA2Data(NotNull<mscom::IInterceptor*> aInterceptor,
|
|
StaticIA2Data* aOutStaticData,
|
|
DynamicIA2Data* aOutDynamicData);
|
|
static void CleanupStaticIA2Data(StaticIA2Data& aData);
|
|
bool IsTargetInterfaceCacheable();
|
|
// Replace a raw object from the main thread with a wrapped, intercepted
|
|
// object suitable for calling from the MTA.
|
|
// The reference to the original object is adopted; i.e. you should not
|
|
// separately release it.
|
|
// This is intended for objects returned from method calls on the main thread.
|
|
template <typename Interface>
|
|
HRESULT ToWrappedObject(Interface** aObj);
|
|
void GetAllTextInfoMainThread(BSTR* aText,
|
|
IAccessibleHyperlink*** aHyperlinks,
|
|
long* aNHyperlinks,
|
|
IA2TextSegment** aAttribRuns,
|
|
long* aNAttribRuns, HRESULT* result);
|
|
void GetRelationsInfoMainThread(IARelationData** aRelations,
|
|
long* aNRelations, HRESULT* result);
|
|
void GetAllChildrenMainThread(AccChildData** aChildren, ULONG* aNChildren,
|
|
HRESULT* result);
|
|
|
|
Atomic<uint32_t> mRefCnt;
|
|
Mutex mMutex; // Protects mSerializer
|
|
const IID mTargetUnkIid;
|
|
mscom::InterceptorTargetPtr<IUnknown>
|
|
mTargetUnk; // Constant, main thread only
|
|
UniquePtr<mscom::StructToStream> mSerializer;
|
|
RefPtr<IUnknown> mFastMarshalUnk;
|
|
};
|
|
|
|
} // namespace a11y
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_a11y_HandlerProvider_h
|