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 the Mozilla SVG project.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Crocodile Clips Ltd..
19 : * Portions created by the Initial Developer are Copyright (C) 2001
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
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
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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 "DOMSVGAnimatedTransformList.h"
40 : #include "DOMSVGTransformList.h"
41 : #include "SVGAnimatedTransformList.h"
42 : #include "nsSVGAttrTearoffTable.h"
43 :
44 : namespace mozilla {
45 :
46 : static
47 : nsSVGAttrTearoffTable<SVGAnimatedTransformList,DOMSVGAnimatedTransformList>
48 1464 : sSVGAnimatedTransformListTearoffTable;
49 :
50 1464 : NS_SVG_VAL_IMPL_CYCLE_COLLECTION(DOMSVGAnimatedTransformList, mElement)
51 :
52 0 : NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMSVGAnimatedTransformList)
53 0 : NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMSVGAnimatedTransformList)
54 :
55 : } // namespace mozilla
56 : DOMCI_DATA(SVGAnimatedTransformList, mozilla::DOMSVGAnimatedTransformList)
57 : namespace mozilla {
58 :
59 0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMSVGAnimatedTransformList)
60 0 : NS_INTERFACE_MAP_ENTRY(nsIDOMSVGAnimatedTransformList)
61 0 : NS_INTERFACE_MAP_ENTRY(nsISupports)
62 0 : NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGAnimatedTransformList)
63 0 : NS_INTERFACE_MAP_END
64 :
65 : //----------------------------------------------------------------------
66 : // nsIDOMSVGAnimatedTransformList methods:
67 :
68 : /* readonly attribute nsIDOMSVGTransformList baseVal; */
69 : NS_IMETHODIMP
70 0 : DOMSVGAnimatedTransformList::GetBaseVal(nsIDOMSVGTransformList** aBaseVal)
71 : {
72 0 : if (!mBaseVal) {
73 0 : mBaseVal = new DOMSVGTransformList(this, InternalAList().GetBaseValue());
74 : }
75 0 : NS_ADDREF(*aBaseVal = mBaseVal);
76 0 : return NS_OK;
77 : }
78 :
79 : /* readonly attribute nsIDOMSVGTransformList animVal; */
80 : NS_IMETHODIMP
81 0 : DOMSVGAnimatedTransformList::GetAnimVal(nsIDOMSVGTransformList** aAnimVal)
82 : {
83 0 : if (!mAnimVal) {
84 0 : mAnimVal = new DOMSVGTransformList(this, InternalAList().GetAnimValue());
85 : }
86 0 : NS_ADDREF(*aAnimVal = mAnimVal);
87 0 : return NS_OK;
88 : }
89 :
90 : /* static */ already_AddRefed<DOMSVGAnimatedTransformList>
91 0 : DOMSVGAnimatedTransformList::GetDOMWrapper(SVGAnimatedTransformList *aList,
92 : nsSVGElement *aElement)
93 : {
94 : DOMSVGAnimatedTransformList *wrapper =
95 0 : sSVGAnimatedTransformListTearoffTable.GetTearoff(aList);
96 0 : if (!wrapper) {
97 0 : wrapper = new DOMSVGAnimatedTransformList(aElement);
98 0 : sSVGAnimatedTransformListTearoffTable.AddTearoff(aList, wrapper);
99 : }
100 0 : NS_ADDREF(wrapper);
101 0 : return wrapper;
102 : }
103 :
104 : /* static */ DOMSVGAnimatedTransformList*
105 0 : DOMSVGAnimatedTransformList::GetDOMWrapperIfExists(
106 : SVGAnimatedTransformList *aList)
107 : {
108 0 : return sSVGAnimatedTransformListTearoffTable.GetTearoff(aList);
109 : }
110 :
111 0 : DOMSVGAnimatedTransformList::~DOMSVGAnimatedTransformList()
112 : {
113 : // Script no longer has any references to us, to our base/animVal objects, or
114 : // to any of their list items.
115 0 : sSVGAnimatedTransformListTearoffTable.RemoveTearoff(&InternalAList());
116 0 : }
117 :
118 : void
119 0 : DOMSVGAnimatedTransformList::InternalBaseValListWillChangeLengthTo(
120 : PRUint32 aNewLength)
121 : {
122 : // When the number of items in our internal counterpart's baseVal changes,
123 : // we MUST keep our baseVal in sync. If we don't, script will either see a
124 : // list that is too short and be unable to access indexes that should be
125 : // valid, or else, MUCH WORSE, script will see a list that is too long and be
126 : // able to access "items" at indexes that are out of bounds (read/write to
127 : // bad memory)!!
128 :
129 0 : nsRefPtr<DOMSVGAnimatedTransformList> kungFuDeathGrip;
130 0 : if (mBaseVal) {
131 0 : if (aNewLength < mBaseVal->Length()) {
132 : // InternalListLengthWillChange might clear last reference to |this|.
133 : // Retain a temporary reference to keep from dying before returning.
134 0 : kungFuDeathGrip = this;
135 : }
136 0 : mBaseVal->InternalListLengthWillChange(aNewLength);
137 : }
138 :
139 : // If our attribute is not animating, then our animVal mirrors our baseVal
140 : // and we must sync its length too. (If our attribute is animating, then the
141 : // SMIL engine takes care of calling InternalAnimValListWillChangeLengthTo()
142 : // if necessary.)
143 :
144 0 : if (!IsAnimating()) {
145 0 : InternalAnimValListWillChangeLengthTo(aNewLength);
146 : }
147 0 : }
148 :
149 : void
150 0 : DOMSVGAnimatedTransformList::InternalAnimValListWillChangeLengthTo(
151 : PRUint32 aNewLength)
152 : {
153 0 : if (mAnimVal) {
154 0 : mAnimVal->InternalListLengthWillChange(aNewLength);
155 : }
156 0 : }
157 :
158 : bool
159 0 : DOMSVGAnimatedTransformList::IsAnimating() const
160 : {
161 0 : return InternalAList().IsAnimating();
162 : }
163 :
164 : SVGAnimatedTransformList&
165 0 : DOMSVGAnimatedTransformList::InternalAList()
166 : {
167 0 : return *mElement->GetAnimatedTransformList();
168 : }
169 :
170 : const SVGAnimatedTransformList&
171 0 : DOMSVGAnimatedTransformList::InternalAList() const
172 : {
173 0 : return *mElement->GetAnimatedTransformList();
174 : }
175 :
176 4392 : } // namespace mozilla
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