1 : /* ***** BEGIN LICENSE BLOCK *****
2 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 : *
4 : * The contents of this file are subject to the Mozilla Public License Version
5 : * 1.1 (the "License"); you may not use this file except in compliance with
6 : * the License. You may obtain a copy of the License at
7 : * http://www.mozilla.org/MPL/
8 : *
9 : * Software distributed under the License is distributed on an "AS IS" basis,
10 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 : * for the specific language governing rights and limitations under the
12 : * License.
13 : *
14 : * The Original Code is mozilla.org code.
15 : *
16 : * The Initial Developer of the Original Code is
17 : * Netscape Communications Corporation.
18 : * Portions created by the Initial Developer are Copyright (C) 2002
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Christopher A. Aillon <christopher@aillon.com> (original author)
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"),
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 : /* DOM object representing lists of values in DOM computed style */
39 :
40 : #include "nsDOMCSSValueList.h"
41 : #include "nsCOMPtr.h"
42 : #include "nsDOMError.h"
43 : #include "prtypes.h"
44 : #include "nsContentUtils.h"
45 :
46 0 : nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited, bool aReadonly)
47 0 : : mCommaDelimited(aCommaDelimited), mReadonly(aReadonly)
48 : {
49 0 : }
50 :
51 0 : nsDOMCSSValueList::~nsDOMCSSValueList()
52 : {
53 0 : }
54 :
55 0 : NS_IMPL_ADDREF(nsDOMCSSValueList)
56 0 : NS_IMPL_RELEASE(nsDOMCSSValueList)
57 :
58 : DOMCI_DATA(CSSValueList, nsDOMCSSValueList)
59 :
60 : // QueryInterface implementation for nsDOMCSSValueList
61 0 : NS_INTERFACE_MAP_BEGIN(nsDOMCSSValueList)
62 0 : NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValueList)
63 0 : NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValue)
64 0 : NS_INTERFACE_MAP_ENTRY(nsISupports)
65 0 : NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSValueList)
66 0 : NS_INTERFACE_MAP_END
67 :
68 : void
69 0 : nsDOMCSSValueList::AppendCSSValue(nsIDOMCSSValue* aValue)
70 : {
71 0 : mCSSValues.AppendElement(aValue);
72 0 : }
73 :
74 : // nsIDOMCSSValueList
75 :
76 : NS_IMETHODIMP
77 0 : nsDOMCSSValueList::GetLength(PRUint32* aLength)
78 : {
79 0 : *aLength = mCSSValues.Length();
80 :
81 0 : return NS_OK;
82 : }
83 :
84 : NS_IMETHODIMP
85 0 : nsDOMCSSValueList::Item(PRUint32 aIndex, nsIDOMCSSValue **aReturn)
86 : {
87 0 : NS_ENSURE_ARG_POINTER(aReturn);
88 :
89 0 : NS_IF_ADDREF(*aReturn = GetItemAt(aIndex));
90 :
91 0 : return NS_OK;
92 : }
93 :
94 : // nsIDOMCSSValue
95 :
96 : NS_IMETHODIMP
97 0 : nsDOMCSSValueList::GetCssText(nsAString& aCssText)
98 : {
99 0 : aCssText.Truncate();
100 :
101 0 : PRUint32 count = mCSSValues.Length();
102 :
103 0 : nsAutoString separator;
104 0 : if (mCommaDelimited) {
105 0 : separator.AssignLiteral(", ");
106 : }
107 : else {
108 0 : separator.Assign(PRUnichar(' '));
109 : }
110 :
111 0 : nsCOMPtr<nsIDOMCSSValue> cssValue;
112 0 : nsAutoString tmpStr;
113 0 : for (PRUint32 i = 0; i < count; ++i) {
114 0 : cssValue = mCSSValues[i];
115 0 : NS_ASSERTION(cssValue, "Eek! Someone filled the value list with null CSSValues!");
116 0 : if (cssValue) {
117 0 : cssValue->GetCssText(tmpStr);
118 :
119 0 : if (tmpStr.IsEmpty()) {
120 :
121 : #ifdef DEBUG_caillon
122 : NS_ERROR("Eek! An empty CSSValue! Bad!");
123 : #endif
124 :
125 0 : continue;
126 : }
127 :
128 : // If this isn't the first item in the list, then
129 : // it's ok to append a separator.
130 0 : if (!aCssText.IsEmpty()) {
131 0 : aCssText.Append(separator);
132 : }
133 0 : aCssText.Append(tmpStr);
134 : }
135 : }
136 :
137 0 : return NS_OK;
138 : }
139 :
140 : NS_IMETHODIMP
141 0 : nsDOMCSSValueList::SetCssText(const nsAString& aCssText)
142 : {
143 0 : if (mReadonly) {
144 0 : return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
145 : }
146 :
147 0 : NS_NOTYETIMPLEMENTED("Can't SetCssText yet: please write me!");
148 0 : return NS_OK;
149 : }
150 :
151 :
152 : NS_IMETHODIMP
153 0 : nsDOMCSSValueList::GetCssValueType(PRUint16* aValueType)
154 : {
155 0 : NS_ENSURE_ARG_POINTER(aValueType);
156 0 : *aValueType = nsIDOMCSSValue::CSS_VALUE_LIST;
157 0 : return NS_OK;
158 : }
159 :
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