stylesheets/wikibits.js

   1 // Wikipedia JavaScript support functions
   2 // if this is true, the toolbar will no longer overwrite the infobox when you move the mouse over individual items
   3 var noOverwrite=false;
   4 var alertText;
   5 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   6 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   7                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   8 var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   9 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
  10 if (clientPC.indexOf('opera')!=-1) {
  11     var is_opera = true;
  12     var is_opera_preseven = (window.opera && !document.childNodes);
  13     var is_opera_seven = (window.opera && document.childNodes);
  14 }
  15
  16 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  17 function onloadhook () {
  18     // don't run anything below this for non-dom browsers
  19     if(!(document.getElementById && document.getElementsByTagName)) return;
  20     histrowinit();
  21     unhidetzbutton();
  22     tabbedprefs();
  23     akeytt();
  24 }
  25 if (window.addEventListener) window.addEventListener("load",onloadhook,false);
  26 else if (window.attachEvent) window.attachEvent("onload",onloadhook);
  27
  28
  29 // document.write special stylesheet links
  30 if(typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  31     if (is_opera_preseven) {
  32         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  33     } else if (is_opera_seven) {
  34         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  35     } else if (is_khtml) {
  36         document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  37     }
  38 }
  39 // Un-trap us from framesets
  40 if( window.top != window ) window.top.location = window.location;
  41
  42 // for enhanced RecentChanges
  43 function toggleVisibility( _levelId, _otherId, _linkId) {
  44         var thisLevel = document.getElementById( _levelId );
  45         var otherLevel = document.getElementById( _otherId );
  46         var linkLevel = document.getElementById( _linkId );
  47         if ( thisLevel.style.display == 'none' ) {
  48                 thisLevel.style.display = 'block';
  49                 otherLevel.style.display = 'none';
  50                 linkLevel.style.display = 'inline';
  51         } else {
  52                 thisLevel.style.display = 'none';
  53                 otherLevel.style.display = 'inline';
  54                 linkLevel.style.display = 'none';
  55                 }
  56 }
  57
  58 // page history stuff
  59 // attach event handlers to the input elements on history page
  60 function histrowinit () {
  61     hf = document.getElementById('pagehistory');
  62     if(!hf) return;
  63     lis = hf.getElementsByTagName('LI');
  64     for (i=0;i<lis.length;i++) {
  65         inputs=lis[i].getElementsByTagName('INPUT');
  66         if(inputs[0] && inputs[1]) {
  67                 inputs[0].onclick = diffcheck;
  68                 inputs[1].onclick = diffcheck;
  69         }
  70     }
  71     diffcheck();
  72 }
  73 // check selection and tweak visibility/class onclick
  74 function diffcheck() {
  75     var dli = false; // the li where the diff radio is checked
  76     var oli = false; // the li where the oldid radio is checked
  77     hf = document.getElementById('pagehistory');
  78     if(!hf) return;
  79     lis = hf.getElementsByTagName('LI');
  80     for (i=0;i<lis.length;i++) {
  81         inputs=lis[i].getElementsByTagName('INPUT');
  82         if(inputs[1] && inputs[0]) {
  83             if(inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  84                 if(inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) return false;
  85                 if(oli) { // it's the second checked radio
  86                     if(inputs[1].checked) {
  87                     oli.className = "selected";
  88                     return false
  89                     }
  90                 } else if (inputs[0].checked) {
  91                     return false;
  92                 }
  93                 if(inputs[0].checked) dli = lis[i];
  94                 if(!oli) inputs[0].style.visibility = 'hidden';
  95                 if(dli) inputs[1].style.visibility = 'hidden';
  96                 lis[i].className = "selected";
  97                 oli = lis[i];
  98             }  else { // no radio is checked in this row
  99                 if(!oli) inputs[0].style.visibility = 'hidden';
 100                 else inputs[0].style.visibility = 'visible';
 101                 if(dli) inputs[1].style.visibility = 'hidden';
 102                 else inputs[1].style.visibility = 'visible';
 103                 lis[i].className = "";
 104             }
 105         }
 106     }
 107 }
 108
 109 // generate toc from prefs form, fold sections
 110 // XXX: needs testing on IE/Mac and safari
 111 // more comments to follow
 112 function tabbedprefs() {
 113     prefform = document.getElementById('preferences');
 114     if(!prefform || !document.createElement) return;
 115     prefform.className = prefform.className + 'jsprefs';
 116     var sections = new Array();
 117     children = prefform.childNodes;
 118     var seci = 0;
 119     for(i=0;i<children.length;i++) {
 120         if(children[i].nodeName.indexOf('FIELDSET') != -1) {
 121             children[i].id = 'prefsection-' + seci;
 122             children[i].className = 'prefsection';
 123             if(is_opera || is_khtml) children[i].className = 'prefsection operaprefsection';
 124             legends = children[i].getElementsByTagName('LEGEND');
 125             sections[seci] = new Object();
 126             if(legends[0] && legends[0].firstChild.nodeValue)
 127                 sections[seci].text = legends[0].firstChild.nodeValue;
 128             else
 129                 sections[seci].text = '# ' + seci;
 130             sections[seci].secid = children[i].id;
 131             seci++;
 132             if(sections.length != 1) children[i].style.display = 'none';
 133             else var selectedid = children[i].id;
 134         }
 135     }
 136     var toc = document.createElement('UL');
 137     toc.id = 'preftoc';
 138     toc.selectedid = selectedid;
 139     for(i=0;i<sections.length;i++) {
 140         var li = document.createElement('LI');
 141         if(i == 0) li.className = 'selected';
 142         var a =  document.createElement('A');
 143         a.href = '#' + sections[i].secid;
 144         a.onclick = uncoversection;
 145         a.innerHTML = sections[i].text;
 146         a.secid = sections[i].secid;
 147         li.appendChild(a);
 148         toc.appendChild(li);
 149     }
 150     prefform.insertBefore(toc, children[0]);
 151     document.getElementById('prefsubmit').id = 'prefcontrol';
 152 }
 153 function uncoversection() {
 154     oldsecid = this.parentNode.parentNode.selectedid;
 155     newsec = document.getElementById(this.secid);
 156     if(oldsecid != this.secid) {
 157         ul = document.getElementById('preftoc');
 158         document.getElementById(oldsecid).style.display = 'none';
 159         newsec.style.display = 'block';
 160         ul.selectedid = this.secid;
 161         lis = ul.getElementsByTagName('LI');
 162         for(i=0;i< lis.length;i++) {
 163             lis[i].className = '';
 164         }
 165         this.parentNode.className = 'selected';
 166     }
 167     return false;
 168 }
 169
 170 // Timezone stuff
 171 // tz in format [+-]HHMM
 172 function checkTimezone( tz, msg ) {
 173         var localclock = new Date();
 174         // returns negative offset from GMT in minutes
 175         var tzRaw = localclock.getTimezoneOffset();
 176         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 177         var tzMin = Math.abs(tzRaw) % 60;
 178         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 179         if( tz != tzString ) {
 180                 var junk = msg.split( '$1' );
 181                 document.write( junk[0] + "UTC" + tzString + junk[1] );
 182         }
 183 }
 184 function unhidetzbutton() {
 185     tzb = document.getElementById('guesstimezonebutton')
 186     if(tzb) tzb.style.display = 'inline';
 187 }
 188
 189 // in [-]HH:MM format...
 190 // won't yet work with non-even tzs
 191 function fetchTimezone() {
 192         // FIXME: work around Safari bug
 193         var localclock = new Date();
 194         // returns negative offset from GMT in minutes
 195         var tzRaw = localclock.getTimezoneOffset();
 196         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 197         var tzMin = Math.abs(tzRaw) % 60;
 198         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 199                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 200         return tzString;
 201 }
 202
 203 function guessTimezone(box) {
 204         document.preferences.wpHourDiff.value = fetchTimezone();
 205 }
 206
 207 function showTocToggle(show,hide) {
 208         if(document.getElementById) {
 209                 document.writeln('<span class=\'toctoggle\'>[<a href="javascript:toggleToc()" class="internal">' +
 210                 '<span id="showlink" style="display:none;">' + show + '</span>' +
 211                 '<span id="hidelink">' + hide + '</span>'
 212                 + '</a>]</span>');
 213         }
 214 }
 215
 216
 217 function toggleToc() {
 218         var toc = document.getElementById('tocinside');
 219         var showlink=document.getElementById('showlink');
 220         var hidelink=document.getElementById('hidelink');
 221         if(toc.style.display == 'none') {
 222                 toc.style.display = tocWas;
 223                 hidelink.style.display='';
 224                 showlink.style.display='none';
 225
 226         } else {
 227                 tocWas = toc.style.display;
 228                 toc.style.display = 'none';
 229                 hidelink.style.display='none';
 230                 showlink.style.display='';
 231
 232         }
 233 }
 234
 235 // this function generates the actual toolbar buttons with localized text
 236 // we use it to avoid creating the toolbar where javascript is not enabled
 237 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 238
 239         speedTip=escapeQuotes(speedTip);
 240         tagOpen=escapeQuotes(tagOpen);
 241         tagClose=escapeQuotes(tagClose);
 242         sampleText=escapeQuotes(sampleText);
 243         var mouseOver="";
 244
 245         // we can't change the selection, so we show example texts
 246         // when moving the mouse instead, until the first button is clicked
 247         if(!document.selection && !is_gecko) {
 248                 // filter backslashes so it can be shown in the infobox
 249                 var re=new RegExp("\\\\n","g");
 250                 tagOpen=tagOpen.replace(re,"");
 251                 tagClose=tagClose.replace(re,"");
 252                 mouseOver = "onMouseover=\"if(!noOverwrite){document.infoform.infobox.value='"+tagOpen+sampleText+tagClose+"'};\"";
 253         }
 254
 255         document.write("<a href=\"javascript:insertTags");
 256         document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");
 257
 258         document.write("<img width=\"23\" height=\"22\" src=\""+imageFile+"\" border=\"0\" ALT=\""+speedTip+"\" TITLE=\""+speedTip+"\""+mouseOver+">");
 259         document.write("</a>");
 260         return;
 261 }
 262
 263 function addInfobox(infoText,text_alert) {
 264         alertText=text_alert;
 265         var clientPC = navigator.userAgent.toLowerCase(); // Get client info
 266
 267         var re=new RegExp("\\\\n","g");
 268         alertText=alertText.replace(re,"\n");
 269
 270         // if no support for changing selection, add a small copy & paste field
 271         // document.selection is an IE-only property. The full toolbar works in IE and
 272         // Gecko-based browsers.
 273         if(!document.selection && !is_gecko) {
 274                 infoText=escapeQuotesHTML(infoText);
 275                 document.write("<form name='infoform' id='infoform'>"+
 276                         "<input size=80 id='infobox' name='infobox' value=\""+
 277                         infoText+"\" READONLY></form>");
 278         }
 279
 280 }
 281
 282 function escapeQuotes(text) {
 283         var re=new RegExp("'","g");
 284         text=text.replace(re,"\\'");
 285         re=new RegExp('"',"g");
 286         text=text.replace(re,'&quot;');
 287         re=new RegExp("\\n","g");
 288         text=text.replace(re,"\\n");
 289         return text;
 290 }
 291
 292 function escapeQuotesHTML(text) {
 293         var re=new RegExp('"',"g");
 294         text=text.replace(re,"&quot;");
 295         return text;
 296 }
 297
 298 // apply tagOpen/tagClose to selection in textarea,
 299 // use sampleText instead of selection if there is none
 300 // copied and adapted from phpBB
 301 function insertTags(tagOpen, tagClose, sampleText) {
 302
 303         var txtarea = document.editform.wpTextbox1;
 304         // IE
 305         if(document.selection  && !is_gecko) {
 306                 var theSelection = document.selection.createRange().text;
 307                 if(!theSelection) { theSelection=sampleText;}
 308                 txtarea.focus();
 309                 if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
 310                         theSelection = theSelection.substring(0, theSelection.length - 1);
 311                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 312                 } else {
 313                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 314                 }
 315
 316         // Mozilla
 317         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 318                 var startPos = txtarea.selectionStart;
 319                 var endPos = txtarea.selectionEnd;
 320                 var scrollTop=txtarea.scrollTop;
 321                 var myText = (txtarea.value).substring(startPos, endPos);
 322                 if(!myText) { myText=sampleText;}
 323                 if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
 324                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 325                 } else {
 326                         subst = tagOpen + myText + tagClose;
 327                 }
 328                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 329                   txtarea.value.substring(endPos, txtarea.value.length);
 330                 txtarea.focus();
 331
 332                 var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
 333                 txtarea.selectionStart=cPos;
 334                 txtarea.selectionEnd=cPos;
 335                 txtarea.scrollTop=scrollTop;
 336
 337         // All others
 338         } else {
 339                 var copy_alertText=alertText;
 340                 var re1=new RegExp("\\$1","g");
 341                 var re2=new RegExp("\\$2","g");
 342                 copy_alertText=copy_alertText.replace(re1,sampleText);
 343                 copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
 344                 var text;
 345                 if (sampleText) {
 346                         text=prompt(copy_alertText);
 347                 } else {
 348                         text="";
 349                 }
 350                 if(!text) { text=sampleText;}
 351                 text=tagOpen+text+tagClose;
 352                 document.infoform.infobox.value=text;
 353                 // in Safari this causes scrolling
 354                 if(!is_safari) {
 355                         txtarea.focus();
 356                 }
 357                 noOverwrite=true;
 358         }
 359         // reposition cursor if possible
 360         if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
 361 }
 362
 363 function akeytt() {
 364     if(typeof ta == "undefined" || !ta) return;
 365     pref = 'alt-';
 366     if(is_safari || navigator.userAgent.toLowerCase().indexOf( 'mac' ) + 1 ) pref = 'control-';
 367     if(is_opera) pref = 'shift-esc-';
 368     for(id in ta) {
 369         n = document.getElementById(id);
 370         if(n){
 371             a = n.childNodes[0];
 372             if(a){
 373                 if(ta[id][0].length > 0) {
 374                     a.accessKey = ta[id][0];
 375                     ak = ' ['+pref+ta[id][0]+']';
 376                 } else {
 377                     ak = '';
 378                 }
 379                 a.title = ta[id][1]+ak;
 380             } else {
 381                 if(ta[id][0].length > 0) {
 382                     n.accessKey = ta[id][0];
 383                     ak = ' ['+pref+ta[id][0]+']';
 384                 } else {
 385                     ak = '';
 386                 }
 387                 n.title = ta[id][1]+ak;
 388             }
 389         }
 390     }
 391 }