1 | /** |
---|
2 | * Tabs class for handling HTML/CSS tabs |
---|
3 | * |
---|
4 | * Copyright (C) 2003 Dipl.-Inform. Kai Hofmann and probusiness AG |
---|
5 | * |
---|
6 | * This library is free software; you can redistribute it and/or |
---|
7 | * modify it under the terms of the GNU Lesser General Public |
---|
8 | * License as published by the Free Software Foundation; either |
---|
9 | * version 2.1 of the License, or (at your option) any later version. |
---|
10 | * |
---|
11 | * This library is distributed in the hope that it will be useful, |
---|
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
14 | * Lesser General Public License for more details. |
---|
15 | * |
---|
16 | * You should have received a copy of the GNU Lesser General Public |
---|
17 | * License along with this library; if not, write to the Free Software |
---|
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
---|
19 | * |
---|
20 | * Contact information: |
---|
21 | * Dipl.-Inform. Kai Hofmann |
---|
22 | * Arberger Heerstr. 92 |
---|
23 | * 28307 Bremen |
---|
24 | * Germany |
---|
25 | * |
---|
26 | * |
---|
27 | * probusiness AG |
---|
28 | * Expo-Plaza-Nr. 1 |
---|
29 | * 30539 Hannover |
---|
30 | * Germany |
---|
31 | * |
---|
32 | * |
---|
33 | * @version 1.0 |
---|
34 | * @author hofmann@hofmann-int.de |
---|
35 | * |
---|
36 | * @argument nrTabs Number of Tabs to handle |
---|
37 | * @argument activeCSSclass CSS class name for active tabs (display:inline) |
---|
38 | * @argument inactiveCSSclass CSS class name for inactive tabs (display:none) |
---|
39 | * @argument HTMLtabID HTML ID name prefix that would be used with the tab number as tab name. |
---|
40 | * @argument HTMLtabcontentID HTML ID prefix for the tab content used with the tab number |
---|
41 | * @argument HTMLtabselectorID HTML ID prefix for a selectbox used to switch between the tabs |
---|
42 | * @argument HTMLtabradioID HTML ID prefix for radio button input fields used to switch between the tabs |
---|
43 | * @argument tabPageKey URL parameter name to use for setting/getting the actual tab |
---|
44 | */ |
---|
45 | |
---|
46 | function Tabs(nrTabs,activeCSSclass,inactiveCSSclass,HTMLtabID,HTMLtabcontentID,HTMLtabselectorID,HTMLtabradioID,tabPageKey) |
---|
47 | { |
---|
48 | this.nrTabs = nrTabs; |
---|
49 | this.activeCSSclass = activeCSSclass; |
---|
50 | this.inactiveCSSclass = inactiveCSSclass; |
---|
51 | this.HTMLtabID = HTMLtabID; |
---|
52 | this.HTMLtabcontentID = HTMLtabcontentID; |
---|
53 | this.HTMLtabselectorID = HTMLtabselectorID; |
---|
54 | this.HTMLtabradioID = HTMLtabradioID; |
---|
55 | this.tabPageKey = tabPageKey; |
---|
56 | |
---|
57 | if (typeof(_tabs_prototype_called) == 'undefined') |
---|
58 | { |
---|
59 | _tabs_prototype_called = true; |
---|
60 | Tabs.prototype.setActive = setActive; |
---|
61 | Tabs.prototype.setInactive = setInactive; |
---|
62 | Tabs.prototype.isActive = isActive; |
---|
63 | Tabs.prototype.getActive = getActive; |
---|
64 | Tabs.prototype.disableAll = disableAll; |
---|
65 | Tabs.prototype.display = display; |
---|
66 | Tabs.prototype.changeToActive = changeToActive; |
---|
67 | Tabs.prototype.init = init; |
---|
68 | } |
---|
69 | |
---|
70 | |
---|
71 | /** |
---|
72 | * Set tab as active |
---|
73 | * |
---|
74 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be active |
---|
75 | */ |
---|
76 | function setActive(tabnr) |
---|
77 | { |
---|
78 | if ((tabnr > 0) && (tabnr <= this.nrTabs)) |
---|
79 | { |
---|
80 | if(document.getElementById(this.HTMLtabID + tabnr)) |
---|
81 | document.getElementById(this.HTMLtabID + tabnr).className = this.activeCSSclass; |
---|
82 | if(document.getElementById(this.HTMLtabcontentID + tabnr)) |
---|
83 | document.getElementById(this.HTMLtabcontentID + tabnr).className = this.activeCSSclass; |
---|
84 | |
---|
85 | |
---|
86 | if(document.getElementById(this.HTMLtabselectorID)) |
---|
87 | document.getElementById(this.HTMLtabselectorID).selectedIndex = tabnr-1; |
---|
88 | if(document.getElementById(this.HTMLtabradioID + tabnr)) |
---|
89 | document.getElementById(this.HTMLtabradioID + tabnr).checked = true; |
---|
90 | } |
---|
91 | } |
---|
92 | |
---|
93 | |
---|
94 | |
---|
95 | /** |
---|
96 | * Set tab as inactive |
---|
97 | * |
---|
98 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be inactive |
---|
99 | */ |
---|
100 | function setInactive(tabnr) |
---|
101 | { |
---|
102 | if ((tabnr > 0) && (tabnr <= this.nrTabs)) |
---|
103 | { |
---|
104 | if(document.getElementById(this.HTMLtabID + tabnr)) |
---|
105 | document.getElementById(this.HTMLtabID + tabnr).className = this.inactiveCSSclass; |
---|
106 | if(document.getElementById(this.HTMLtabcontentID + tabnr)) |
---|
107 | document.getElementById(this.HTMLtabcontentID + tabnr).className = this.inactiveCSSclass; |
---|
108 | } |
---|
109 | } |
---|
110 | |
---|
111 | |
---|
112 | /** |
---|
113 | * Test if tab is active |
---|
114 | * |
---|
115 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be tested |
---|
116 | * @returns boolean - true if tab is active, false otherwise |
---|
117 | */ |
---|
118 | function isActive(tabnr) |
---|
119 | { |
---|
120 | return(document.getElementById(HTMLtabID + tabnr).className == this.activeCSSclass); |
---|
121 | } |
---|
122 | |
---|
123 | |
---|
124 | /** |
---|
125 | * Get the active tab number |
---|
126 | * |
---|
127 | * @returns Tab (1-nrTabs) that is currently active or 0 if non is active. |
---|
128 | */ |
---|
129 | function getActive() |
---|
130 | { |
---|
131 | for (i = 1; i <= this.nrTabs; ++i) |
---|
132 | { |
---|
133 | if (this.isActive(i)) |
---|
134 | { |
---|
135 | return(i); |
---|
136 | } |
---|
137 | } |
---|
138 | return(0); |
---|
139 | } |
---|
140 | |
---|
141 | |
---|
142 | /** |
---|
143 | * Disable all tabs |
---|
144 | */ |
---|
145 | function disableAll() |
---|
146 | { |
---|
147 | for (i = 1; i <= this.nrTabs; ++i) |
---|
148 | { |
---|
149 | this.setInactive(i); |
---|
150 | } |
---|
151 | } |
---|
152 | |
---|
153 | |
---|
154 | /** |
---|
155 | * Disable all tabs and then display the tab number given |
---|
156 | * |
---|
157 | * @argument tabnr Tab number to display |
---|
158 | */ |
---|
159 | function display(tabnr) |
---|
160 | { |
---|
161 | this.disableAll(this.nrTabs); |
---|
162 | this.setActive(tabnr); |
---|
163 | } |
---|
164 | |
---|
165 | |
---|
166 | /** |
---|
167 | * Loop over all tabs - switch off currently active tabs and display the new tab |
---|
168 | * |
---|
169 | * @argument tabnr Tab number to display |
---|
170 | */ |
---|
171 | function changeToActive(tabnr) |
---|
172 | { |
---|
173 | for (i = 1; i <= this.nrTabs; ++i) |
---|
174 | { |
---|
175 | if (i == tabnr) |
---|
176 | { |
---|
177 | if (!this.isActive(i)) |
---|
178 | { |
---|
179 | this.setActive(i); |
---|
180 | } |
---|
181 | } |
---|
182 | else |
---|
183 | { |
---|
184 | if (this.isActive(i)) |
---|
185 | { |
---|
186 | this.setInactive(i); |
---|
187 | } |
---|
188 | } |
---|
189 | } |
---|
190 | } |
---|
191 | |
---|
192 | |
---|
193 | /** |
---|
194 | * Get url parameter for first tab and display it. |
---|
195 | */ |
---|
196 | function init() |
---|
197 | { |
---|
198 | var tab = 0; |
---|
199 | var url = document.URL; |
---|
200 | var pos = url.indexOf("?"); |
---|
201 | if (pos > -1) |
---|
202 | { |
---|
203 | var urlparams = url.substr(pos + 1,url.length - (pos + 1)); |
---|
204 | var regexp = new RegExp('(^|&)' + this.tabPageKey + '=[0-9]{1,2}'); |
---|
205 | var urlparamstart = urlparams.search(regexp); |
---|
206 | if (urlparamstart > -1) |
---|
207 | { |
---|
208 | urlparamstart = urlparamstart + ((urlparams[urlparamstart] == '&') ? 1 : 0); |
---|
209 | var urlparam = urlparams.substr(urlparamstart,urlparams.length - urlparamstart); |
---|
210 | pos = urlparam.indexOf("&"); |
---|
211 | if (pos > -1) |
---|
212 | { |
---|
213 | urlparam = urlparam.substr(0,pos); |
---|
214 | } |
---|
215 | pos = urlparam.indexOf("="); |
---|
216 | if (pos > -1) |
---|
217 | { |
---|
218 | var urlparamvalue = urlparam.substr(pos + 1,urlparam.length - (pos + 1)); |
---|
219 | tab = urlparamvalue; |
---|
220 | } |
---|
221 | } |
---|
222 | else |
---|
223 | { |
---|
224 | tab = 1; |
---|
225 | } |
---|
226 | } |
---|
227 | else |
---|
228 | { |
---|
229 | tab = 1; |
---|
230 | } |
---|
231 | if ((tab <= 0) || (tab > this.nrTabs)) |
---|
232 | { |
---|
233 | tab = 1; |
---|
234 | } |
---|
235 | this.display(tab); |
---|
236 | } |
---|
237 | } |
---|