Tools/WinLauncher/DOMDefaultImpl.h

/*
 * Copyright (C) 2011 Anthony Johnson. All Rights Reserved.
 * Copyright (C) 2011 Brent Fulgham. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef DOMDefaultImpl_h
#define DOMDefaultImpl_h

#include <WebKit/WebKit.h>

class WebScriptObject : public IWebScriptObject {
public:
    WebScriptObject() : m_refCount(0)
    {
    }

    virtual ~WebScriptObject()
    {
    }

    // IUnknown
    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
    virtual ULONG STDMETHODCALLTYPE AddRef(void);
    virtual ULONG STDMETHODCALLTYPE Release(void);

    // IWebScriptObject
    virtual HRESULT STDMETHODCALLTYPE throwException(BSTR, BOOL*) { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE callWebScriptMethod(BSTR, const VARIANT[], int, VARIANT*) { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE evaluateWebScript(BSTR, VARIANT*) { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE removeWebScriptKey(BSTR) { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE stringRepresentation(BSTR*) { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE webScriptValueAtIndex(unsigned int, VARIANT*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE setWebScriptValueAtIndex(unsigned int, VARIANT)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE setException(BSTR)  { return E_NOTIMPL; }

protected:
    ULONG m_refCount;
};


class DOMObject : public WebScriptObject, public IDOMObject {
public:
    // IUnknown
    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
};


class DOMEventListener : public DOMObject, public IDOMEventListener {
public:
    // IUnknown
    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
    virtual ULONG STDMETHODCALLTYPE AddRef(void);
    virtual ULONG STDMETHODCALLTYPE Release(void);

    // IWebScriptObject
    virtual HRESULT STDMETHODCALLTYPE throwException(BSTR, BOOL*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE callWebScriptMethod(BSTR, const VARIANT[], int, VARIANT*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE evaluateWebScript(BSTR, VARIANT*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE removeWebScriptKey(BSTR)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE stringRepresentation(BSTR*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE webScriptValueAtIndex(unsigned int, VARIANT*)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE setWebScriptValueAtIndex(unsigned int, VARIANT)  { return E_NOTIMPL; }
    virtual HRESULT STDMETHODCALLTYPE setException(BSTR) { return E_NOTIMPL; }

    // IDOMEventListener
    virtual HRESULT STDMETHODCALLTYPE handleEvent(IDOMEvent*) { return E_NOTIMPL; }
};

// IUnknown -------------------------------------------------------------------
HRESULT WebScriptObject::QueryInterface(REFIID riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IUnknown))
        *ppvObject = static_cast<IWebScriptObject*>(this);
    else if (IsEqualGUID(riid, IID_IWebScriptObject))
        *ppvObject = static_cast<IWebScriptObject*>(this);
    else
        return E_NOINTERFACE;

    AddRef();
    return S_OK;
}

ULONG WebScriptObject::AddRef(void)
{
    return ++m_refCount;
}

ULONG WebScriptObject::Release(void)
{
    ULONG newRef = --m_refCount;
    if (!newRef)
        delete(this);

    return newRef;
}

// DOMObject -------------------------------------------------------------------
HRESULT DOMObject::QueryInterface(REFIID riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IDOMObject))
        *ppvObject = static_cast<IDOMObject*>(this);
    else
        return WebScriptObject::QueryInterface(riid, ppvObject);

    WebScriptObject::AddRef();
    return S_OK;
}


// DOMEventListener -------------------------------------------------------------------
HRESULT DOMEventListener::QueryInterface(const IID &riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IDOMEventListener))
        *ppvObject = static_cast<IDOMEventListener*>(this);
    else
        return DOMObject::QueryInterface(riid, ppvObject);

    AddRef();
    return S_OK;
}

ULONG DOMEventListener::AddRef(void)
{
    return WebScriptObject::AddRef();
}

ULONG DOMEventListener::Release(void)
{
    return WebScriptObject::Release();
}

#endif