1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* vim: set ts=2 et sw=2 tw=80: */
3 : /* ***** BEGIN LICENSE BLOCK *****
4 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 : *
6 : * The contents of this file are subject to the Mozilla Public License Version
7 : * 1.1 (the "License"); you may not use this file except in compliance with
8 : * the License. You may obtain a copy of the License at
9 : * http://www.mozilla.org/MPL/
10 : *
11 : * Software distributed under the License is distributed on an "AS IS" basis,
12 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 : * for the specific language governing rights and limitations under the
14 : * License.
15 : *
16 : * The Original Code is Indexed Database.
17 : *
18 : * The Initial Developer of the Original Code is
19 : * The Mozilla Foundation.
20 : * Portions created by the Initial Developer are Copyright (C) 2010
21 : * the Initial Developer. All Rights Reserved.
22 : *
23 : * Contributor(s):
24 : * Shawn Wilsher <me@shawnwilsher.com>
25 : * Ben Turner <bent.mozilla@gmail.com>
26 : *
27 : * Alternatively, the contents of this file may be used under the terms of
28 : * either the GNU General Public License Version 2 or later (the "GPL"), or
29 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
30 : * in which case the provisions of the GPL or the LGPL are applicable instead
31 : * of those above. If you wish to allow use of your version of this file only
32 : * under the terms of either the GPL or the LGPL, and not to allow others to
33 : * use your version of this file under the terms of the MPL, indicate your
34 : * decision by deleting the provisions above and replace them with the notice
35 : * and other provisions required by the GPL or the LGPL. If you do not delete
36 : * the provisions above, a recipient may use your version of this file under
37 : * the terms of any one of the MPL, the GPL or the LGPL.
38 : *
39 : * ***** END LICENSE BLOCK ***** */
40 :
41 : #ifndef mozilla_dom_indexeddb_idbrequest_h__
42 : #define mozilla_dom_indexeddb_idbrequest_h__
43 :
44 : #include "mozilla/dom/indexedDB/IndexedDatabase.h"
45 :
46 : #include "nsIIDBRequest.h"
47 : #include "nsIIDBOpenDBRequest.h"
48 : #include "nsDOMEventTargetHelper.h"
49 : #include "mozilla/dom/indexedDB/IDBWrapperCache.h"
50 :
51 : class nsIScriptContext;
52 : class nsPIDOMWindow;
53 :
54 : BEGIN_INDEXEDDB_NAMESPACE
55 :
56 : class HelperBase;
57 : class IDBTransaction;
58 :
59 : class IDBRequest : public IDBWrapperCache,
60 : public nsIIDBRequest
61 : {
62 : public:
63 : NS_DECL_ISUPPORTS_INHERITED
64 : NS_DECL_NSIIDBREQUEST
65 5691 : NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(IDBRequest,
66 : IDBWrapperCache)
67 :
68 : static
69 : already_AddRefed<IDBRequest> Create(nsISupports* aSource,
70 : IDBWrapperCache* aOwnerCache,
71 : IDBTransaction* aTransaction);
72 :
73 : // nsIDOMEventTarget
74 : virtual nsresult PreHandleEvent(nsEventChainPreVisitor& aVisitor);
75 :
76 : nsISupports* Source()
77 : {
78 : return mSource;
79 : }
80 :
81 : void Reset();
82 :
83 : nsresult NotifyHelperCompleted(HelperBase* aHelper);
84 :
85 : void SetError(nsresult rv)
86 : {
87 : NS_ASSERTION(NS_FAILED(rv), "Er, what?");
88 : NS_ASSERTION(mErrorCode == NS_OK, "Already have an error?");
89 :
90 : mErrorCode = rv;
91 : }
92 :
93 : protected:
94 : IDBRequest();
95 : ~IDBRequest();
96 :
97 : virtual void RootResultValInternal();
98 : virtual void UnrootResultValInternal();
99 :
100 4211 : void RootResultVal()
101 : {
102 4211 : if (!mRooted) {
103 4211 : RootResultValInternal();
104 4211 : mRooted = true;
105 : }
106 4211 : }
107 :
108 4349 : void UnrootResultVal()
109 : {
110 4349 : if (mRooted) {
111 4211 : UnrootResultValInternal();
112 4211 : mRooted = false;
113 : }
114 4349 : }
115 :
116 : nsCOMPtr<nsISupports> mSource;
117 : nsRefPtr<IDBTransaction> mTransaction;
118 :
119 : NS_DECL_EVENT_HANDLER(success)
120 : NS_DECL_EVENT_HANDLER(error)
121 :
122 : jsval mResultVal;
123 :
124 : PRUint16 mErrorCode;
125 : bool mHaveResultOrErrorCode;
126 : bool mRooted;
127 : };
128 :
129 : class IDBOpenDBRequest : public IDBRequest,
130 : public nsIIDBOpenDBRequest
131 76 : {
132 : public:
133 : NS_DECL_ISUPPORTS_INHERITED
134 466 : NS_FORWARD_NSIIDBREQUEST(IDBRequest::)
135 : NS_DECL_NSIIDBOPENDBREQUEST
136 1472 : NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBOpenDBRequest, IDBRequest)
137 :
138 : static
139 : already_AddRefed<IDBOpenDBRequest>
140 : Create(nsPIDOMWindow* aOwner,
141 : JSObject* aScriptOwner);
142 :
143 : static
144 : already_AddRefed<IDBOpenDBRequest>
145 : Create(IDBWrapperCache* aOwnerCache)
146 : {
147 : return Create(aOwnerCache->GetOwner(),
148 : aOwnerCache->GetScriptOwner());
149 : }
150 :
151 : void SetTransaction(IDBTransaction* aTransaction);
152 :
153 : protected:
154 : ~IDBOpenDBRequest();
155 :
156 : virtual void RootResultValInternal();
157 : virtual void UnrootResultValInternal();
158 :
159 : // Only touched on the main thread.
160 : NS_DECL_EVENT_HANDLER(blocked)
161 : NS_DECL_EVENT_HANDLER(upgradeneeded)
162 : };
163 :
164 : END_INDEXEDDB_NAMESPACE
165 :
166 : #endif // mozilla_dom_indexeddb_idbrequest_h__
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