native-glass.win.AccessibleBasePatternProvider.h Maven / Gradle / Ivy
/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#ifndef _ACCESSIBLE_BASE_PATTERN_PROVIDER_
#define _ACCESSIBLE_BASE_PATTERN_PROVIDER_
#include
#include
class AccessibleBasePatternProvider: public IUnknown {
public:
AccessibleBasePatternProvider(JNIEnv* env, jobject self);
// IUnknown methods
IFACEMETHODIMP_(ULONG) AddRef();
IFACEMETHODIMP_(ULONG) Release();
IFACEMETHODIMP QueryInterface(REFIID riid, void**);
IFACEMETHODIMP GetPatternProvider(PATTERNID patternId, IUnknown **pRetVal);
LONG m_id; // A unique ID for this accessible
protected:
virtual ~AccessibleBasePatternProvider(); // Only this object deletes itself, thus the d'tor is private
protected:
jobject m_self; // The related Java side object
private:
ULONG m_refCount; // Ref Counter for this COM object
};
/**
* Factory for creating ChildIDs
*
* There is a need for unique ChildIDs. To implement this a 32 bit static variable counts sequentially
* downward from -1. The current value is used for a childID. Each time an accessible is destructed, its
* number is saved into a resuse pool. The sequential number is used whenever the reuse pool is empty.
*
*/
class AccessibleBasePatternProviderChildIDFactory {
private:
static LONG sm_ChildID;
static std::vector sm_reusePool;
public:
static LONG getChildID(void);
static void releaseChildID(LONG);
};
#endif