1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 : * vim: sw=2 ts=8 et :
3 : */
4 : /* ***** BEGIN LICENSE BLOCK *****
5 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6 : *
7 : * The contents of this file are subject to the Mozilla Public License Version
8 : * 1.1 (the "License"); you may not use this file except in compliance with
9 : * the License. You may obtain a copy of the License at:
10 : * http://www.mozilla.org/MPL/
11 : *
12 : * Software distributed under the License is distributed on an "AS IS" basis,
13 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14 : * for the specific language governing rights and limitations under the
15 : * License.
16 : *
17 : * The Original Code is Mozilla Code.
18 : *
19 : * The Initial Developer of the Original Code is
20 : * The Mozilla Foundation
21 : * Portions created by the Initial Developer are Copyright (C) 2010
22 : * the Initial Developer. All Rights Reserved.
23 : *
24 : * Contributor(s):
25 : * Chris Jones <jones.chris.g@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
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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
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38 : *
39 : * ***** END LICENSE BLOCK ***** */
40 :
41 : #include "ShadowLayersParent.h"
42 : #include "ShadowLayerParent.h"
43 : #include "ShadowLayers.h"
44 :
45 : #include "BasicLayers.h"
46 :
47 : namespace mozilla {
48 : namespace layers {
49 :
50 0 : ShadowLayerParent::ShadowLayerParent() : mLayer(NULL)
51 : {
52 0 : }
53 :
54 0 : ShadowLayerParent::~ShadowLayerParent()
55 : {
56 0 : }
57 :
58 : void
59 0 : ShadowLayerParent::Bind(Layer* layer)
60 : {
61 0 : mLayer = layer;
62 0 : }
63 :
64 : void
65 0 : ShadowLayerParent::Destroy()
66 : {
67 : // It's possible for Destroy() to come in just after this has been
68 : // created, but just before the transaction in which Bind() would
69 : // have been called. In that case, we'll ignore shadow-layers
70 : // transactions from there on and never get a layer here.
71 0 : if (mLayer) {
72 0 : mLayer->Disconnect();
73 : }
74 0 : }
75 :
76 : ContainerLayer*
77 0 : ShadowLayerParent::AsContainer() const
78 : {
79 0 : return static_cast<ContainerLayer*>(AsLayer());
80 : }
81 :
82 : void
83 0 : ShadowLayerParent::ActorDestroy(ActorDestroyReason why)
84 : {
85 0 : switch (why) {
86 : case AncestorDeletion:
87 0 : NS_RUNTIMEABORT("shadow layer deleted out of order!");
88 0 : return; // unreached
89 :
90 : case Deletion:
91 : // See comment near Destroy() above.
92 0 : if (mLayer) {
93 0 : mLayer->Disconnect();
94 : }
95 0 : break;
96 :
97 : case AbnormalShutdown:
98 : case NormalShutdown:
99 : // let IPDL-generated code automatically clean up Shmems and so
100 : // forth; our channel is disconnected anyway
101 0 : break;
102 :
103 : case FailedConstructor:
104 0 : NS_RUNTIMEABORT("FailedConstructor isn't possible in PLayers");
105 0 : return; // unreached
106 : }
107 :
108 0 : mLayer = NULL;
109 : }
110 :
111 : } // namespace layers
112 : } // namespace mozilla
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