1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is the Mozilla XTF project.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Alex Fritze.
19 : * Portions created by the Initial Developer are Copyright (C) 2004
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Alex Fritze <alex@croczilla.com> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #include "nsCOMPtr.h"
40 : #include "nsXPTCUtils.h"
41 : #include "nsIInterfaceInfo.h"
42 : #include "nsIInterfaceInfoManager.h"
43 : #include "nsServiceManagerUtils.h"
44 : #include "nsAutoPtr.h"
45 : #ifdef DEBUG
46 : #include <stdio.h>
47 : #endif
48 :
49 : ////////////////////////////////////////////////////////////////////////
50 : // nsXTFInterfaceAggregator class
51 :
52 : class nsXTFInterfaceAggregator : protected nsAutoXPTCStub
53 : {
54 : protected:
55 : friend nsresult
56 : NS_NewXTFInterfaceAggregator(const nsIID& iid,
57 : nsISupports* inner,
58 : nsISupports* outer,
59 : void** result);
60 :
61 : nsXTFInterfaceAggregator(const nsIID& iid,
62 : nsISupports* inner,
63 : nsISupports* outer,
64 : nsresult *rv);
65 : ~nsXTFInterfaceAggregator();
66 :
67 : public:
68 : // nsISupports interface
69 : NS_DECL_ISUPPORTS
70 :
71 : NS_IMETHOD CallMethod(PRUint16 methodIndex,
72 : const XPTMethodDescriptor* info,
73 : nsXPTCMiniVariant* params);
74 :
75 : private:
76 : nsISupports *mInner;
77 : nsISupports *mOuter;
78 : nsIID mIID;
79 : };
80 :
81 : //----------------------------------------------------------------------
82 : // implementation:
83 :
84 2 : nsXTFInterfaceAggregator::nsXTFInterfaceAggregator(const nsIID& iid,
85 : nsISupports* inner,
86 : nsISupports* outer,
87 : nsresult *rv)
88 2 : : mInner(inner), mOuter(outer), mIID(iid)
89 : {
90 : #ifdef DEBUG
91 : // printf("nsXTFInterfaceAggregator CTOR\n");
92 : #endif
93 2 : mInner->AddRef();
94 2 : mOuter->AddRef();
95 :
96 2 : *rv = InitStub(iid);
97 2 : }
98 :
99 4 : nsXTFInterfaceAggregator::~nsXTFInterfaceAggregator()
100 : {
101 : #ifdef DEBUG
102 : // printf("nsXTFInterfaceAggregator DTOR\n");
103 : #endif
104 2 : mInner->Release();
105 2 : mOuter->Release();
106 2 : }
107 :
108 : nsresult
109 2 : NS_NewXTFInterfaceAggregator(const nsIID& iid,
110 : nsISupports* inner,
111 : nsISupports* outer,
112 : void** aResult){
113 2 : NS_PRECONDITION(aResult != nsnull, "null ptr");
114 2 : if (!aResult)
115 0 : return NS_ERROR_NULL_POINTER;
116 :
117 : nsresult rv;
118 :
119 : nsRefPtr<nsXTFInterfaceAggregator> result =
120 4 : new nsXTFInterfaceAggregator(iid, inner, outer, &rv);
121 2 : if (!result)
122 0 : return NS_ERROR_OUT_OF_MEMORY;
123 :
124 2 : if (NS_FAILED(rv))
125 0 : return rv;
126 :
127 2 : return result->QueryInterface(iid, aResult);
128 : }
129 :
130 : //----------------------------------------------------------------------
131 : // nsISupports implementation
132 :
133 4 : NS_IMPL_ADDREF(nsXTFInterfaceAggregator)
134 6 : NS_IMPL_RELEASE(nsXTFInterfaceAggregator)
135 :
136 : NS_IMETHODIMP
137 4 : nsXTFInterfaceAggregator::QueryInterface(REFNSIID aIID, void** aInstancePtr)
138 : {
139 4 : NS_PRECONDITION(aInstancePtr, "null out param");
140 :
141 4 : if (aIID.Equals(mIID)) {
142 2 : *aInstancePtr = mXPTCStub;
143 2 : NS_ADDREF_THIS();
144 2 : return NS_OK;
145 : }
146 :
147 2 : return mOuter->QueryInterface(aIID, aInstancePtr);
148 : }
149 :
150 : //----------------------------------------------------------------------
151 : // nsXPTCStubBase implementation
152 :
153 : NS_IMETHODIMP
154 3 : nsXTFInterfaceAggregator::CallMethod(PRUint16 methodIndex,
155 : const XPTMethodDescriptor *info,
156 : nsXPTCMiniVariant* params)
157 : {
158 3 : NS_ASSERTION(methodIndex >= 3,
159 : "huh? indirect nsISupports method call unexpected");
160 :
161 : // prepare args:
162 3 : int paramCount = info->num_args;
163 : nsXPTCVariant* fullPars;
164 3 : if (!paramCount) {
165 0 : fullPars = nsnull;
166 : }
167 : else {
168 6 : fullPars = new nsXPTCVariant[paramCount];
169 3 : if (!fullPars)
170 0 : return NS_ERROR_OUT_OF_MEMORY;
171 : }
172 :
173 6 : for (int i=0; i<paramCount; ++i) {
174 3 : const nsXPTParamInfo& paramInfo = info->params[i];
175 3 : PRUint8 flags = paramInfo.IsOut() ? nsXPTCVariant::PTR_IS_DATA : 0;
176 3 : fullPars[i].Init(params[i], paramInfo.GetType(), flags);
177 : }
178 :
179 : // make the call:
180 : nsresult rv = NS_InvokeByIndex(mInner,
181 : methodIndex,
182 : paramCount,
183 3 : fullPars);
184 3 : if (fullPars)
185 3 : delete []fullPars;
186 3 : return rv;
187 : }
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