1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 : * vim: sw=2 ts=2 et :
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 Mozilla Plugins.
17 : *
18 : * The Initial Developer of the Original Code is
19 : * 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 : * Ben Turner <bent.mozilla@gmail.com>
25 : *
26 : * Alternatively, the contents of this file may be used under the terms of
27 : * either the GNU General Public License Version 2 or later (the "GPL"), or
28 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
29 : * in which case the provisions of the GPL or the LGPL are applicable instead
30 : * of those above. If you wish to allow use of your version of this file only
31 : * under the terms of either the GPL or the LGPL, and not to allow others to
32 : * use your version of this file under the terms of the MPL, indicate your
33 : * decision by deleting the provisions above and replace them with the notice
34 : * and other provisions required by the GPL or the LGPL. If you do not delete
35 : * the provisions above, a recipient may use your version of this file under
36 : * the terms of any one of the MPL, the GPL or the LGPL.
37 : *
38 : * ***** END LICENSE BLOCK ***** */
39 :
40 : #include "PluginIdentifierParent.h"
41 :
42 : #include "nsServiceManagerUtils.h"
43 : #include "nsNPAPIPlugin.h"
44 : #include "nsIJSContextStack.h"
45 : #include "PluginScriptableObjectUtils.h"
46 : #include "mozilla/unused.h"
47 :
48 : using namespace mozilla::plugins::parent;
49 :
50 : namespace mozilla {
51 : namespace plugins {
52 :
53 : bool
54 0 : PluginIdentifierParent::RecvRetain()
55 : {
56 0 : mTemporaryRefs = 0;
57 :
58 : // Intern the jsid if necessary.
59 0 : jsid id = NPIdentifierToJSId(mIdentifier);
60 0 : if (JSID_IS_INT(id)) {
61 0 : return true;
62 : }
63 :
64 : // The following is what nsNPAPIPlugin.cpp does. Gross, but the API doesn't
65 : // give you a NPP to play with.
66 : nsCOMPtr<nsIThreadJSContextStack> stack =
67 0 : do_GetService("@mozilla.org/js/xpc/ContextStack;1");
68 0 : if (!stack) {
69 0 : return false;
70 : }
71 :
72 0 : JSContext *cx = nsnull;
73 0 : stack->GetSafeJSContext(&cx);
74 0 : if (!cx) {
75 0 : return false;
76 : }
77 :
78 0 : JSAutoRequest ar(cx);
79 0 : JSString* str = JSID_TO_STRING(id);
80 0 : JSString* str2 = JS_InternJSString(cx, str);
81 0 : if (!str2) {
82 0 : return false;
83 : }
84 :
85 0 : NS_ASSERTION(str == str2, "Interning a string in a JSID should always return the same string.");
86 :
87 0 : return true;
88 : }
89 :
90 0 : PluginIdentifierParent::StackIdentifier::StackIdentifier
91 : (PluginInstanceParent* inst, NPIdentifier aIdentifier)
92 0 : : mIdentifier(inst->Module()->GetIdentifierForNPIdentifier(inst->GetNPP(), aIdentifier))
93 : {
94 0 : }
95 :
96 0 : PluginIdentifierParent::StackIdentifier::StackIdentifier
97 : (NPObject* aObject, NPIdentifier aIdentifier)
98 0 : : mIdentifier(NULL)
99 : {
100 0 : PluginInstanceParent* inst = GetInstance(aObject);
101 0 : mIdentifier = inst->Module()->GetIdentifierForNPIdentifier(inst->GetNPP(), aIdentifier);
102 0 : }
103 :
104 0 : PluginIdentifierParent::StackIdentifier::~StackIdentifier()
105 : {
106 0 : if (!mIdentifier) {
107 0 : return;
108 : }
109 :
110 0 : if (!mIdentifier->IsTemporary()) {
111 0 : return;
112 : }
113 :
114 0 : if (mIdentifier->RemoveTemporaryRef()) {
115 0 : unused << PPluginIdentifierParent::Send__delete__(mIdentifier);
116 : }
117 0 : }
118 :
119 : } // namespace mozilla::plugins
120 : } // namespace mozilla
|