[2] | 1 | /** |
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| 2 | * Tabs class for handling HTML/CSS tabs |
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| 3 | * |
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| 4 | * Copyright (C) 2003 Dipl.-Inform. Kai Hofmann and probusiness AG |
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| 5 | * |
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| 6 | * This library is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * This library is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with this library; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 19 | * |
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| 20 | * Contact information: |
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| 21 | * Dipl.-Inform. Kai Hofmann |
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| 22 | * Arberger Heerstr. 92 |
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| 23 | * 28307 Bremen |
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| 24 | * Germany |
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| 25 | * |
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| 26 | * |
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| 27 | * probusiness AG |
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| 28 | * Expo-Plaza-Nr. 1 |
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| 29 | * 30539 Hannover |
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| 30 | * Germany |
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| 31 | * |
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| 32 | * |
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| 33 | * @version 1.0 |
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| 34 | * @author hofmann@hofmann-int.de |
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| 35 | * |
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| 36 | * @argument nrTabs Number of Tabs to handle |
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| 37 | * @argument activeCSSclass CSS class name for active tabs (display:inline) |
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| 38 | * @argument inactiveCSSclass CSS class name for inactive tabs (display:none) |
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| 39 | * @argument HTMLtabID HTML ID name prefix that would be used with the tab number as tab name. |
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| 40 | * @argument HTMLtabcontentID HTML ID prefix for the tab content used with the tab number |
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| 41 | * @argument HTMLtabselectorID HTML ID prefix for a selectbox used to switch between the tabs |
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| 42 | * @argument HTMLtabradioID HTML ID prefix for radio button input fields used to switch between the tabs |
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| 43 | * @argument tabPageKey URL parameter name to use for setting/getting the actual tab |
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| 44 | */ |
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| 45 | function Tabs(nrTabs,activeCSSclass,inactiveCSSclass,HTMLtabID,HTMLtabcontentID,HTMLtabselectorID,HTMLtabradioID,tabPageKey) |
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| 46 | { |
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| 47 | this.nrTabs = nrTabs; |
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| 48 | this.activeCSSclass = activeCSSclass; |
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| 49 | this.inactiveCSSclass = inactiveCSSclass; |
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| 50 | this.HTMLtabID = HTMLtabID; |
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| 51 | this.HTMLtabcontentID = HTMLtabcontentID; |
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| 52 | this.HTMLtabselectorID = HTMLtabselectorID; |
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| 53 | this.HTMLtabradioID = HTMLtabradioID; |
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| 54 | this.tabPageKey = tabPageKey; |
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| 55 | |
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| 56 | if (typeof(_tabs_prototype_called) == 'undefined') |
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| 57 | { |
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| 58 | _tabs_prototype_called = true; |
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| 59 | Tabs.prototype.setActive = setActive; |
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| 60 | Tabs.prototype.setInactive = setInactive; |
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| 61 | Tabs.prototype.isActive = isActive; |
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| 62 | Tabs.prototype.getActive = getActive; |
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| 63 | Tabs.prototype.disableAll = disableAll; |
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| 64 | Tabs.prototype.display = display; |
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| 65 | Tabs.prototype.changeToActive = changeToActive; |
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| 66 | Tabs.prototype.init = init; |
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| 67 | } |
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| 68 | |
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| 69 | |
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| 70 | /** |
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| 71 | * Set tab as active |
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| 72 | * |
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| 73 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be active |
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| 74 | */ |
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| 75 | function setActive(tabnr) |
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| 76 | { |
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| 77 | if ((tabnr > 0) && (tabnr <= this.nrTabs)) |
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| 78 | { |
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| 79 | if(document.getElementById(this.HTMLtabID + tabnr)) |
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| 80 | document.getElementById(this.HTMLtabID + tabnr).className = this.activeCSSclass; |
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| 81 | if(document.getElementById(this.HTMLtabcontentID + tabnr)) |
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| 82 | document.getElementById(this.HTMLtabcontentID + tabnr).className = this.activeCSSclass; |
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| 83 | |
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| 84 | if(document.getElementById(this.HTMLtabselectorID)) |
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| 85 | document.getElementById(this.HTMLtabselectorID).selectedIndex = tabnr-1; |
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| 86 | if(document.getElementById(this.HTMLtabradioID + tabnr)) |
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| 87 | document.getElementById(this.HTMLtabradioID + tabnr).checked = true; |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | |
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| 92 | |
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| 93 | /** |
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| 94 | * Set tab as inactive |
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| 95 | * |
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| 96 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be inactive |
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| 97 | */ |
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| 98 | function setInactive(tabnr) |
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| 99 | { |
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| 100 | if ((tabnr > 0) && (tabnr <= this.nrTabs)) |
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| 101 | { |
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| 102 | if(document.getElementById(this.HTMLtabID + tabnr)) |
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| 103 | document.getElementById(this.HTMLtabID + tabnr).className = this.inactiveCSSclass; |
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| 104 | if(document.getElementById(this.HTMLtabcontentID + tabnr)) |
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| 105 | document.getElementById(this.HTMLtabcontentID + tabnr).className = this.inactiveCSSclass; |
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| 106 | } |
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| 107 | } |
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| 108 | |
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| 109 | |
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| 110 | /** |
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| 111 | * Test if tab is active |
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| 112 | * |
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| 113 | * @argument tabnr The tab number (1-nrTabs) of the tab that should be tested |
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| 114 | * @returns boolean - true if tab is active, false otherwise |
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| 115 | */ |
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| 116 | function isActive(tabnr) |
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| 117 | { |
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| 118 | return(document.getElementById(HTMLtabID + tabnr).className == this.activeCSSclass); |
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| 119 | } |
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| 120 | |
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| 121 | |
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| 122 | /** |
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| 123 | * Get the active tab number |
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| 124 | * |
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| 125 | * @returns Tab (1-nrTabs) that is currently active or 0 if non is active. |
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| 126 | */ |
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| 127 | function getActive() |
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| 128 | { |
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| 129 | for (i = 1; i <= this.nrTabs; ++i) |
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| 130 | { |
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| 131 | if (this.isActive(i)) |
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| 132 | { |
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| 133 | return(i); |
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| 134 | } |
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| 135 | } |
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| 136 | return(0); |
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| 137 | } |
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| 138 | |
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| 139 | |
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| 140 | /** |
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| 141 | * Disable all tabs |
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| 142 | */ |
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| 143 | function disableAll() |
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| 144 | { |
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| 145 | for (i = 1; i <= this.nrTabs; ++i) |
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| 146 | { |
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| 147 | this.setInactive(i); |
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| 148 | } |
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| 149 | } |
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| 150 | |
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| 151 | |
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| 152 | /** |
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| 153 | * Disable all tabs and then display the tab number given |
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| 154 | * |
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| 155 | * @argument tabnr Tab number to display |
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| 156 | */ |
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| 157 | function display(tabnr) |
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| 158 | { |
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| 159 | for (i = 1; i <= this.nrTabs; ++i) |
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| 160 | { |
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| 161 | if (i == tabnr) |
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| 162 | this.setActive(tabnr); |
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| 163 | else |
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| 164 | this.setInactive(i); |
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| 165 | } |
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| 166 | } |
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| 167 | |
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| 168 | |
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| 169 | /** |
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| 170 | * Loop over all tabs - switch off currently active tabs and display the new tab |
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| 171 | * |
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| 172 | * @argument tabnr Tab number to display |
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| 173 | */ |
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| 174 | function changeToActive(tabnr) |
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| 175 | { |
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| 176 | for (i = 1; i <= this.nrTabs; ++i) |
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| 177 | { |
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| 178 | if (i == tabnr) |
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| 179 | { |
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| 180 | if (!this.isActive(i)) |
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| 181 | { |
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| 182 | this.setActive(i); |
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| 183 | } |
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| 184 | } |
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| 185 | else |
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| 186 | { |
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| 187 | if (this.isActive(i)) |
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| 188 | { |
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| 189 | this.setInactive(i); |
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| 190 | } |
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| 191 | } |
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| 192 | } |
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| 193 | } |
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| 194 | |
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| 195 | |
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| 196 | /** |
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| 197 | * Determine active tab from url parameter or selector and display it. |
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| 198 | */ |
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| 199 | function init() |
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| 200 | { |
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| 201 | var tab = 0; |
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| 202 | var regexp = new RegExp('(^|&)' + this.tabPageKey + '=[0-9]{1,2}'); |
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| 203 | var urlparams = window.location.search; |
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| 204 | var urlparamstart = urlparams.search(regexp); |
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| 205 | |
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| 206 | // getting the active tab from the tabPageKey (url/get-var) if set |
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| 207 | if (this.tabPageKey && urlparamstart > -1) |
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| 208 | { |
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| 209 | urlparamstart = urlparamstart + ((urlparams[urlparamstart] == '&') ? 1 : 0); |
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| 210 | var urlparam = urlparams.substr(urlparamstart,urlparams.length - urlparamstart); |
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| 211 | var pos = urlparam.indexOf("&"); |
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| 212 | if (pos > -1) |
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| 213 | { |
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| 214 | urlparam = urlparam.substr(0,pos); |
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| 215 | } |
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| 216 | pos = urlparam.indexOf("="); |
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| 217 | if (pos > -1) |
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| 218 | { |
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| 219 | var urlparamvalue = urlparam.substr(pos + 1,urlparam.length - (pos + 1)); |
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| 220 | tab = urlparamvalue; |
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| 221 | } |
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| 222 | } |
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| 223 | else |
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| 224 | { |
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| 225 | // getting the active tab from the selector if set |
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| 226 | // the check for != '' is needed for Konqueror |
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| 227 | if(document.getElementById(this.HTMLtabselectorID) && this.HTMLtabselectorID != '') |
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| 228 | tab = document.getElementById(this.HTMLtabselectorID).selectedIndex+1; |
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| 229 | else |
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| 230 | tab = 1; |
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| 231 | } |
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| 232 | if ((tab <= 0) || (tab > this.nrTabs)) |
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| 233 | { |
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| 234 | tab = 1; |
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| 235 | } |
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| 236 | this.display(tab); |
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| 237 | } |
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| 238 | } |
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