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 Communicator client 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) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Original Author: David W. Hyatt (hyatt@netscape.com)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
27 : * or 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 "nsICSSLoaderObserver.h"
41 : #include "nsCOMArray.h"
42 : #include "nsContentUtils.h"
43 : #include "nsCycleCollectionParticipant.h"
44 :
45 : class nsIContent;
46 : class nsIAtom;
47 : class nsIDocument;
48 : class nsIScriptContext;
49 : class nsSupportsHashtable;
50 : class nsXBLPrototypeResources;
51 : class nsXBLPrototypeBinding;
52 :
53 : // *********************************************************************/
54 : // The XBLResourceLoader class
55 :
56 : struct nsXBLResource {
57 : nsXBLResource* mNext;
58 : nsIAtom* mType;
59 : nsString mSrc;
60 :
61 0 : nsXBLResource(nsIAtom* aType, const nsAString& aSrc) {
62 0 : MOZ_COUNT_CTOR(nsXBLResource);
63 0 : mNext = nsnull;
64 0 : mType = aType;
65 0 : mSrc = aSrc;
66 0 : }
67 :
68 0 : ~nsXBLResource() {
69 0 : MOZ_COUNT_DTOR(nsXBLResource);
70 0 : NS_CONTENT_DELETE_LIST_MEMBER(nsXBLResource, this, mNext);
71 0 : }
72 : };
73 :
74 : class nsXBLResourceLoader : public nsICSSLoaderObserver
75 : {
76 : public:
77 0 : NS_DECL_CYCLE_COLLECTING_ISUPPORTS
78 1464 : NS_DECL_CYCLE_COLLECTION_CLASS(nsXBLResourceLoader)
79 :
80 : // nsICSSLoaderObserver
81 : NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,
82 : nsresult aStatus);
83 :
84 : void LoadResources(bool* aResult);
85 : void AddResource(nsIAtom* aResourceType, const nsAString& aSrc);
86 : void AddResourceListener(nsIContent* aElement);
87 :
88 : nsXBLResourceLoader(nsXBLPrototypeBinding* aBinding,
89 : nsXBLPrototypeResources* aResources);
90 : virtual ~nsXBLResourceLoader();
91 :
92 : void NotifyBoundElements();
93 :
94 : nsresult Write(nsIObjectOutputStream* aStream);
95 :
96 : // MEMBER VARIABLES
97 : nsXBLPrototypeBinding* mBinding; // A pointer back to our binding.
98 : nsXBLPrototypeResources* mResources; // A pointer back to our resources
99 : // information. May be null if the
100 : // resources have already been
101 : // destroyed.
102 :
103 : nsXBLResource* mResourceList; // The list of resources we need to load.
104 : nsXBLResource* mLastResource;
105 :
106 : bool mLoadingResources;
107 : // We need mInLoadResourcesFunc because we do a mixture of sync and
108 : // async loads.
109 : bool mInLoadResourcesFunc;
110 : PRInt16 mPendingSheets; // The number of stylesheets that have yet to load.
111 :
112 : // Bound elements that are waiting on the stylesheets and scripts.
113 : nsCOMArray<nsIContent> mBoundElements;
114 : };
115 :
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