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 Mozilla.org.
18 : * Portions created by the Initial Developer are Copyright (C) 2006
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Olli Pettay <Olli.Pettay@helsinki.fi> (Original Author)
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #include "nsCOMPtr.h"
39 : #include "nsIContainerBoxObject.h"
40 : #include "nsIBrowserBoxObject.h"
41 : #include "nsIEditorBoxObject.h"
42 : #include "nsIIFrameBoxObject.h"
43 : #include "nsBoxObject.h"
44 : #include "nsIDocShell.h"
45 : #include "nsIContent.h"
46 : #include "nsIDocument.h"
47 : #include "nsIFrame.h"
48 : #include "nsSubDocumentFrame.h"
49 :
50 : /**
51 : * nsContainerBoxObject implements deprecated nsIBrowserBoxObject,
52 : * nsIEditorBoxObject and nsIIFrameBoxObject interfaces only because of the
53 : * backward compatibility.
54 : */
55 :
56 : class nsContainerBoxObject : public nsBoxObject,
57 : public nsIBrowserBoxObject,
58 : public nsIEditorBoxObject,
59 : public nsIIFrameBoxObject
60 0 : {
61 : public:
62 : NS_DECL_ISUPPORTS_INHERITED
63 : NS_DECL_NSICONTAINERBOXOBJECT
64 : NS_DECL_NSIBROWSERBOXOBJECT
65 : NS_DECL_NSIEDITORBOXOBJECT
66 : NS_DECL_NSIIFRAMEBOXOBJECT
67 : };
68 :
69 0 : NS_INTERFACE_MAP_BEGIN(nsContainerBoxObject)
70 0 : NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContainerBoxObject, nsIBrowserBoxObject)
71 0 : NS_INTERFACE_MAP_ENTRY(nsIBrowserBoxObject)
72 0 : NS_INTERFACE_MAP_ENTRY(nsIEditorBoxObject)
73 0 : NS_INTERFACE_MAP_ENTRY(nsIIFrameBoxObject)
74 0 : NS_INTERFACE_MAP_END_INHERITING(nsBoxObject)
75 :
76 0 : NS_IMPL_ADDREF_INHERITED(nsContainerBoxObject, nsBoxObject)
77 0 : NS_IMPL_RELEASE_INHERITED(nsContainerBoxObject, nsBoxObject)
78 :
79 0 : NS_IMETHODIMP nsContainerBoxObject::GetDocShell(nsIDocShell** aResult)
80 : {
81 0 : *aResult = nsnull;
82 :
83 0 : nsIFrame *frame = GetFrame(false);
84 :
85 0 : if (frame) {
86 0 : nsSubDocumentFrame *subDocFrame = do_QueryFrame(frame);
87 0 : if (subDocFrame) {
88 : // Ok, the frame for mContent is an nsSubDocumentFrame, it knows how
89 : // to reach the docshell, so ask it...
90 :
91 0 : return subDocFrame->GetDocShell(aResult);
92 : }
93 : }
94 :
95 0 : if (!mContent) {
96 0 : return NS_OK;
97 : }
98 :
99 : // No nsSubDocumentFrame available for mContent, try if there's a mapping
100 : // between mContent's document to mContent's subdocument.
101 :
102 : // XXXbz sXBL/XBL2 issue -- ownerDocument or currentDocument?
103 0 : nsIDocument *doc = mContent->GetDocument();
104 :
105 0 : if (!doc) {
106 0 : return NS_OK;
107 : }
108 :
109 0 : nsIDocument *sub_doc = doc->GetSubDocumentFor(mContent);
110 :
111 0 : if (!sub_doc) {
112 0 : return NS_OK;
113 : }
114 :
115 0 : nsCOMPtr<nsISupports> container = sub_doc->GetContainer();
116 :
117 0 : if (!container) {
118 0 : return NS_OK;
119 : }
120 :
121 0 : return CallQueryInterface(container, aResult);
122 : }
123 :
124 : nsresult
125 0 : NS_NewContainerBoxObject(nsIBoxObject** aResult)
126 : {
127 0 : *aResult = new nsContainerBoxObject();
128 0 : if (!*aResult)
129 0 : return NS_ERROR_OUT_OF_MEMORY;
130 0 : NS_ADDREF(*aResult);
131 0 : return NS_OK;
132 : }
133 :
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