skins/common/history.js

   1 function historyRadios(parent) {
   2         var inputs = parent.getElementsByTagName('input');
   3         var radios = [];
   4         for (var i = 0; i < inputs.length; i++) {
   5                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
   6                         radios[radios.length] = inputs[i];
   7                 }
   8         }
   9         return radios;
  10 }
  11
  12 function deleteCheck(parent) {
  13         var inputs = parent.getElementsByTagName('input');
  14         for (var i = 0; i < inputs.length; i++) {
  15                 if (inputs[i].name == "showhiderevisions") {
  16                         return inputs[i];
  17                 }
  18         }
  19         return null;
  20 }
  21
  22 // check selection and tweak visibility/class onclick
  23 function diffcheck() {
  24         var dli = false; // the li where the diff radio is checked
  25         var oli = false; // the li where the oldid radio is checked
  26         var hf = document.getElementById('pagehistory');
  27         if (!hf) {
  28                 return true;
  29         }
  30         var lis = hf.getElementsByTagName('li');
  31         for (var i=0;i<lis.length;i++) {
  32                 var inputs = historyRadios(lis[i]);
  33                 if (inputs[1] && inputs[0]) {
  34                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  35                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
  36                                         return false;
  37                                 }
  38                                 if (oli) { // it's the second checked radio
  39                                         if (inputs[1].checked) {
  40                                                 if ( (typeof oli.className) != 'undefined') {
  41                                                         oli.classNameOriginal = oli.className.replace( 'selected', '' );
  42                                                 } else {
  43                                                         oli.classNameOriginal = '';
  44                                                 }
  45
  46                                                 oli.className = "selected "+oli.classNameOriginal;
  47                                                 return false;
  48                                         }
  49                                 } else if (inputs[0].checked) {
  50                                         return false;
  51                                 }
  52                                 if (inputs[0].checked) {
  53                                         dli = lis[i];
  54                                 }
  55                                 if (!oli) {
  56                                         inputs[0].style.visibility = 'hidden';
  57                                 }
  58                                 if (dli) {
  59                                         inputs[1].style.visibility = 'hidden';
  60                                 }
  61                                 if ( (typeof lis[i].className) != 'undefined') {
  62                                         lis[i].classNameOriginal = lis[i].className.replace( 'selected', '' );
  63                                 } else {
  64                                         lis[i].classNameOriginal = '';
  65                                 }
  66
  67                                 lis[i].className = "selected "+lis[i].classNameOriginal;
  68                                 oli = lis[i];
  69                         }  else { // no radio is checked in this row
  70                                 if (!oli) {
  71                                         inputs[0].style.visibility = 'hidden';
  72                                 } else {
  73                                         inputs[0].style.visibility = 'visible';
  74                                 }
  75                                 if (dli) {
  76                                         inputs[1].style.visibility = 'hidden';
  77                                 } else {
  78                                         inputs[1].style.visibility = 'visible';
  79                                 }
  80                                 lis[i].className = lis[i].classNameOriginal;
  81                         }
  82                 }
  83         }
  84         return true;
  85 }
  86
  87 // Attach event handlers to the input elements on history page
  88 function histrowinit() {
  89         var hf = document.getElementById('pagehistory');
  90         if (!hf) return;
  91         var df = document.getElementById('mw-history-revdeleteform');
  92         if( df ) df.style.visibility = 'visible'; // Enable JS form
  93         var lis = hf.getElementsByTagName('li');
  94         for (var i = 0; i < lis.length; i++) {
  95                 var inputs = historyRadios(lis[i]);
  96                 if (inputs[0] && inputs[1]) {
  97                         inputs[0].onclick = diffcheck;
  98                         inputs[1].onclick = diffcheck;
  99                 }
 100                 var check = deleteCheck(lis[i]);
 101                 if( df && check ) {
 102                         check.style.display = 'inline'; // Enable JS form
 103                 }
 104         }
 105         diffcheck();
 106 }
 107
 108 // Multi-item revision delete. 'checked' is the *previous* state.
 109 function updateShowHideForm( oldid, checked ) {
 110         var formOldids = document.getElementById('revdel-oldid');
 111         if( !formOldids ) return;
 112         if( checked ) { // add on oldid if checked
 113                 if( formOldids.value ) {
 114                         formOldids.value += ',' + oldid;
 115                 } else {
 116                         formOldids.value = oldid;
 117                 }
 118         } else if( formOldids.value ) { // remove oldid if unchecked
 119                 var reg = new RegExp( '(^|,)'+oldid+'($|,)' );
 120                 formOldids.value = formOldids.value.replace( reg, '' );
 121         }
 122 }
 123
 124 hookEvent("load", histrowinit);