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 mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 2002
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #include "nsPopupWindowManager.h"
39 :
40 : #include "nsCRT.h"
41 : #include "nsIServiceManager.h"
42 : #include "nsIPrefService.h"
43 : #include "nsIPrefBranch.h"
44 :
45 : /**
46 : * The Popup Window Manager maintains popup window permissions by website.
47 : */
48 :
49 : static const char kPopupDisablePref[] = "dom.disable_open_during_load";
50 :
51 : //*****************************************************************************
52 : //*** nsPopupWindowManager object management and nsISupports
53 : //*****************************************************************************
54 :
55 0 : nsPopupWindowManager::nsPopupWindowManager() :
56 0 : mPolicy(ALLOW_POPUP)
57 : {
58 0 : }
59 :
60 0 : nsPopupWindowManager::~nsPopupWindowManager()
61 : {
62 0 : }
63 :
64 0 : NS_IMPL_ISUPPORTS3(nsPopupWindowManager,
65 : nsIPopupWindowManager,
66 : nsIObserver,
67 : nsSupportsWeakReference)
68 :
69 : nsresult
70 0 : nsPopupWindowManager::Init()
71 : {
72 : nsresult rv;
73 0 : mPermissionManager = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
74 :
75 : nsCOMPtr<nsIPrefBranch> prefBranch =
76 0 : do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
77 0 : if (NS_SUCCEEDED(rv)) {
78 : bool permission;
79 0 : rv = prefBranch->GetBoolPref(kPopupDisablePref, &permission);
80 0 : if (NS_FAILED(rv)) {
81 0 : permission = true;
82 : }
83 0 : mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
84 :
85 0 : prefBranch->AddObserver(kPopupDisablePref, this, true);
86 : }
87 :
88 0 : return NS_OK;
89 : }
90 :
91 : //*****************************************************************************
92 : //*** nsPopupWindowManager::nsIPopupWindowManager
93 : //*****************************************************************************
94 :
95 : NS_IMETHODIMP
96 0 : nsPopupWindowManager::TestPermission(nsIURI *aURI, PRUint32 *aPermission)
97 : {
98 0 : NS_ENSURE_ARG_POINTER(aURI);
99 0 : NS_ENSURE_ARG_POINTER(aPermission);
100 :
101 : nsresult rv;
102 : PRUint32 permit;
103 :
104 0 : *aPermission = mPolicy;
105 :
106 0 : if (mPermissionManager) {
107 0 : rv = mPermissionManager->TestPermission(aURI, "popup", &permit);
108 :
109 0 : if (NS_SUCCEEDED(rv)) {
110 : // Share some constants between interfaces?
111 0 : if (permit == nsIPermissionManager::ALLOW_ACTION) {
112 0 : *aPermission = ALLOW_POPUP;
113 0 : } else if (permit == nsIPermissionManager::DENY_ACTION) {
114 0 : *aPermission = DENY_POPUP;
115 : }
116 : }
117 : }
118 :
119 0 : return NS_OK;
120 : }
121 :
122 : //*****************************************************************************
123 : //*** nsPopupWindowManager::nsIObserver
124 : //*****************************************************************************
125 : NS_IMETHODIMP
126 0 : nsPopupWindowManager::Observe(nsISupports *aSubject,
127 : const char *aTopic,
128 : const PRUnichar *aData)
129 : {
130 0 : nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
131 0 : NS_ASSERTION(!nsCRT::strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic),
132 : "unexpected topic - we only deal with pref changes!");
133 :
134 0 : if (prefBranch) {
135 : // refresh our local copy of the "disable popups" pref
136 0 : bool permission = true;
137 0 : prefBranch->GetBoolPref(kPopupDisablePref, &permission);
138 :
139 0 : mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
140 : }
141 :
142 0 : return NS_OK;
143 : }
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