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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CHROME_FRAME_BIND_CONTEXT_INFO_H_
6 #define CHROME_FRAME_BIND_CONTEXT_INFO_H_
7 
8 #include <atlbase.h>
9 #include <atlcom.h>
10 
11 #include "base/win/scoped_comptr.h"
12 #include "chrome_frame/protocol_sink_wrap.h"
13 
14 class __declspec(uuid("71CC3EC7-7E8A-457f-93BC-1090CF31CC18"))
15 IBindContextInfoInternal : public IUnknown {
16  public:
17   STDMETHOD(GetCppObject)(void** me) = 0;
18 };
19 
20 // This class maintains contextual information used by ChromeFrame.
21 // This information is maintained in the bind context.
22 // Association with GUID_NULL is for convenience.
23 class __declspec(uuid("00000000-0000-0000-0000-000000000000")) BindContextInfo
24   : public CComObjectRootEx<CComMultiThreadModel>,
25     public IBindContextInfoInternal {
26  public:
27   BindContextInfo();
28   ~BindContextInfo();
29 
30   BEGIN_COM_MAP(BindContextInfo)
31     COM_INTERFACE_ENTRY(IBindContextInfoInternal)
32     COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, ftm_)
33   END_COM_MAP()
34 
35   // Returns the BindContextInfo instance associated with the bind
36   // context. Creates it if needed.
37   // The returned info object will be AddRef-ed on return, so use
38   // base::win::ScopedComPtr<>::Receive() to receive this pointer.
39   static HRESULT FromBindContext(IBindCtx* bind_context,
40                                  BindContextInfo** info);
41 
set_chrome_request(bool chrome_request)42   void set_chrome_request(bool chrome_request) {
43     chrome_request_ = chrome_request;
44   }
45 
chrome_request()46   bool chrome_request() const {
47     return chrome_request_;
48   }
49 
set_no_cache(bool no_cache)50   void set_no_cache(bool no_cache) {
51     no_cache_ = no_cache;
52   }
53 
no_cache()54   bool no_cache() const {
55     return no_cache_;
56   }
57 
is_switching()58   bool is_switching() const {
59     return is_switching_;
60   }
61 
62   void SetToSwitch(IStream* cache);
63 
cache()64   IStream* cache() {
65     return cache_;
66   }
67 
set_prot_data(ProtData * data)68   void set_prot_data(ProtData* data) {
69     prot_data_ = data;
70   }
71 
get_prot_data()72   scoped_refptr<ProtData> get_prot_data() {
73     return prot_data_;
74   }
75 
has_prot_data()76   bool has_prot_data() const {
77     return prot_data_.get() != NULL;
78   }
79 
set_protocol(IInternetProtocol * protocol)80   void set_protocol(IInternetProtocol* protocol) {
81     protocol_ = protocol;
82   }
83 
protocol()84   IInternetProtocol* protocol() {
85     return protocol_.get();
86   }
87 
88   // Returns the url being navigated to. We retrieve the url from the ProtData
89   // instance which wraps the underlying protocol sink.
90   std::wstring GetUrl();
91 
92  protected:
STDMETHOD(GetCppObject)93   STDMETHOD(GetCppObject)(void** me) {
94     DCHECK(me);
95     AddRef();
96     *me = static_cast<BindContextInfo*>(this);
97     return S_OK;
98   }
99 
100   HRESULT Initialize(IBindCtx* bind_ctx);
101 
102  private:
103   base::win::ScopedComPtr<IStream> cache_;
104   bool no_cache_;
105   bool chrome_request_;
106   bool is_switching_;
107   base::win::ScopedComPtr<IUnknown> ftm_;
108   scoped_refptr<ProtData> prot_data_;
109   base::win::ScopedComPtr<IInternetProtocol> protocol_;
110 
111   DISALLOW_COPY_AND_ASSIGN(BindContextInfo);
112 };
113 
114 #endif  // CHROME_FRAME_BIND_CONTEXT_INFO_H_
115