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      1 /*
      2  * Copyright (C) 2007 Apple Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "WebKitDLL.h"
     28 #include "WebFramePolicyListener.h"
     29 
     30 #include "WebFrame.h"
     31 #include <WebCore/Frame.h>
     32 #include <WebCore/FrameLoader.h>
     33 #include <WebCore/FrameLoaderClient.h>
     34 
     35 using namespace WebCore;
     36 
     37 // WebFramePolicyListener ----------------------------------------------------------------
     38 
     39 WebFramePolicyListener::WebFramePolicyListener(PassRefPtr<Frame> frame)
     40     : m_refCount(0)
     41     , m_frame(frame)
     42 {
     43     gClassCount++;
     44     gClassNameCount.add("WebFramePolicyListener");
     45 }
     46 
     47 WebFramePolicyListener::~WebFramePolicyListener()
     48 {
     49     gClassCount--;
     50     gClassNameCount.remove("WebFramePolicyListener");
     51 }
     52 
     53 WebFramePolicyListener* WebFramePolicyListener::createInstance(PassRefPtr<Frame> frame)
     54 {
     55     WebFramePolicyListener* instance = new WebFramePolicyListener(frame);
     56     instance->AddRef();
     57     return instance;
     58 }
     59 
     60 // IUnknown -------------------------------------------------------------------
     61 
     62 HRESULT STDMETHODCALLTYPE WebFramePolicyListener::QueryInterface(REFIID riid, void** ppvObject)
     63 {
     64     *ppvObject = 0;
     65     if (IsEqualGUID(riid, IID_IUnknown))
     66         *ppvObject = static_cast<IWebPolicyDecisionListener*>(this);
     67     else if (IsEqualGUID(riid, IID_IWebPolicyDecisionListener))
     68         *ppvObject = static_cast<IWebPolicyDecisionListener*>(this);
     69     else if (IsEqualGUID(riid, IID_IWebFormSubmissionListener))
     70         *ppvObject = static_cast<IWebFormSubmissionListener*>(this);
     71     else
     72         return E_NOINTERFACE;
     73 
     74     AddRef();
     75     return S_OK;
     76 }
     77 
     78 ULONG STDMETHODCALLTYPE WebFramePolicyListener::AddRef(void)
     79 {
     80     return ++m_refCount;
     81 }
     82 
     83 ULONG STDMETHODCALLTYPE WebFramePolicyListener::Release(void)
     84 {
     85     ULONG newRef = --m_refCount;
     86     if (!newRef)
     87         delete(this);
     88 
     89     return newRef;
     90 }
     91 
     92 // IWebPolicyDecisionListener ------------------------------------------------------------
     93 
     94 HRESULT STDMETHODCALLTYPE WebFramePolicyListener::use(void)
     95 {
     96     receivedPolicyDecision(PolicyUse);
     97     return S_OK;
     98 }
     99 
    100 HRESULT STDMETHODCALLTYPE WebFramePolicyListener::download(void)
    101 {
    102     receivedPolicyDecision(PolicyDownload);
    103     return S_OK;
    104 }
    105 
    106 HRESULT STDMETHODCALLTYPE WebFramePolicyListener::ignore(void)
    107 {
    108     receivedPolicyDecision(PolicyIgnore);
    109     return S_OK;
    110 }
    111 
    112 // IWebFormSubmissionListener ------------------------------------------------------------
    113 
    114 HRESULT STDMETHODCALLTYPE WebFramePolicyListener::continueSubmit(void)
    115 {
    116     receivedPolicyDecision(PolicyUse);
    117     return S_OK;
    118 }
    119 
    120 // WebFramePolicyListener ----------------------------------------------------------------
    121 void WebFramePolicyListener::receivedPolicyDecision(PolicyAction action)
    122 {
    123     RefPtr<Frame> frame = m_frame.release();
    124     if (frame)
    125         static_cast<WebFrame*>(frame->loader()->client())->receivedPolicyDecision(action);
    126 }
    127 
    128 void WebFramePolicyListener::invalidate()
    129 {
    130     m_frame = 0;
    131 }
    132 
    133