defaultpolicydelegate.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2007 Apple Inc.  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 COMPUTER, 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 COMPUTER, 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 DefaultPolicyDelegate_h
#define DefaultPolicyDelegate_h

#include "COMPtr.h"
#include "WebKit.h"

class DefaultPolicyDelegate : public IWebPolicyDelegate {
public:
    static DefaultPolicyDelegate* sharedInstance();
    static DefaultPolicyDelegate* createInstance();
private:
    DefaultPolicyDelegate();
    ~DefaultPolicyDelegate();
public:
    // IUnknown
    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
    virtual ULONG STDMETHODCALLTYPE AddRef(void);
    virtual ULONG STDMETHODCALLTYPE Release(void);

    // IWebPolicyDelegate
    virtual HRESULT STDMETHODCALLTYPE decidePolicyForNavigationAction( 
        /* [in] */ IWebView *webView,
        /* [in] */ IPropertyBag *actionInformation,
        /* [in] */ IWebURLRequest *request,
        /* [in] */ IWebFrame *frame,
        /* [in] */ IWebPolicyDecisionListener *listener);
    
    virtual HRESULT STDMETHODCALLTYPE decidePolicyForNewWindowAction( 
        /* [in] */ IWebView *webView,
        /* [in] */ IPropertyBag *actionInformation,
        /* [in] */ IWebURLRequest *request,
        /* [in] */ BSTR frameName,
        /* [in] */ IWebPolicyDecisionListener *listener);
    
    virtual HRESULT STDMETHODCALLTYPE decidePolicyForMIMEType( 
        /* [in] */ IWebView *webView,
        /* [in] */ BSTR type,
        /* [in] */ IWebURLRequest *request,
        /* [in] */ IWebFrame *frame,
        /* [in] */ IWebPolicyDecisionListener *listener);
    
    virtual HRESULT STDMETHODCALLTYPE unableToImplementPolicyWithError( 
        /* [in] */ IWebView *webView,
        /* [in] */ IWebError *error,
        /* [in] */ IWebFrame *frame);

protected:
    ULONG m_refCount;
};

#endif // DefaultPolicyDelegate_h