skins/common/protect.js

   1
   2 window.ProtectionForm = {
   3         'existingMatch': false,
   4
   5         /**
   6          * Set up the protection chaining interface (i.e. "unlock move permissions" checkbox)
   7          * on the protection form
   8          *
   9          * @param opts Object : parameters with members:
  10          *     tableId              Identifier of the table containing UI bits
  11          *     labelText            Text to use for the checkbox label
  12          *     numTypes             The number of protection types
  13          *     existingMatch        True if all the existing expiry times match
  14          */
  15         'init': function( opts ) {
  16                 if( !( document.createTextNode && document.getElementById && document.getElementsByTagName ) )
  17                         return false;
  18
  19                 var box = document.getElementById( opts.tableId );
  20                 if( !box )
  21                         return false;
  22
  23                 var boxbody = box.getElementsByTagName('tbody')[0];
  24                 var row = document.createElement( 'tr' );
  25                 boxbody.insertBefore( row, boxbody.firstChild.nextSibling );
  26
  27                 this.existingMatch = opts.existingMatch;
  28
  29                 var cell = document.createElement( 'td' );
  30                 row.appendChild( cell );
  31                 // If there is only one protection type, there is nothing to chain
  32                 if( opts.numTypes > 1 ) {
  33                         var check = document.createElement( 'input' );
  34                         check.id = 'mwProtectUnchained';
  35                         check.type = 'checkbox';
  36                         cell.appendChild( check );
  37                         addClickHandler( check, function() { ProtectionForm.onChainClick(); } );
  38
  39                         cell.appendChild( document.createTextNode( ' ' ) );
  40                         var label = document.createElement( 'label' );
  41                         label.htmlFor = 'mwProtectUnchained';
  42                         label.appendChild( document.createTextNode( opts.labelText ) );
  43                         cell.appendChild( label );
  44
  45                         check.checked = !this.areAllTypesMatching();
  46                         this.enableUnchainedInputs( check.checked );
  47                 }
  48
  49                 $( '#mwProtect-reason' ).byteLimit( 180 );
  50
  51                 this.updateCascadeCheckbox();
  52
  53                 return true;
  54         },
  55
  56         /**
  57          * Sets the disabled attribute on the cascade checkbox depending on the current selected levels
  58          */
  59         'updateCascadeCheckbox': function() {
  60                 // For non-existent titles, there is no cascade option
  61                 if( !document.getElementById( 'mwProtect-cascade' ) ) {
  62                         return;
  63                 }
  64                 var lists = this.getLevelSelectors();
  65                 for( var i = 0; i < lists.length; i++ ) {
  66                         if( lists[i].selectedIndex > -1 ) {
  67                                 var items = lists[i].getElementsByTagName( 'option' );
  68                                 var selected = items[ lists[i].selectedIndex ].value;
  69                                 if( !this.isCascadeableLevel(selected) ) {
  70                                         document.getElementById( 'mwProtect-cascade' ).checked = false;
  71                                         document.getElementById( 'mwProtect-cascade' ).disabled = true;
  72                                         return;
  73                                 }
  74                         }
  75                 }
  76                 document.getElementById( 'mwProtect-cascade' ).disabled = false;
  77         },
  78
  79         /**
  80          * Is this protection level cascadeable?
  81          * @param level String
  82          *
  83          * @return boolean
  84          *
  85          */
  86         'isCascadeableLevel': function( level ) {
  87                 for (var k = 0; k < wgCascadeableLevels.length; k++) {
  88                         if ( wgCascadeableLevels[k] == level ) {
  89                                 return true;
  90                         }
  91                 }
  92                 return false;
  93         },
  94
  95         /**
  96          * When protection levels are locked together, update the rest
  97          * when one action's level changes
  98          *
  99          * @param source Element Level selector that changed
 100          */
 101         'updateLevels': function(source) {
 102                 if( !this.isUnchained() )
 103                         this.setAllSelectors( source.selectedIndex );
 104                 this.updateCascadeCheckbox();
 105         },
 106
 107         /**
 108          * When protection levels are locked together, update the
 109          * expiries when one changes
 110          *
 111          * @param source Element expiry input that changed
 112          */
 113
 114         'updateExpiry': function(source) {
 115                 if( !this.isUnchained() ) {
 116                         var expiry = source.value;
 117                         this.forEachExpiryInput(function(element) {
 118                                 element.value = expiry;
 119                         });
 120                 }
 121                 var listId = source.id.replace( /^mwProtect-(\w+)-expires$/, 'mwProtectExpirySelection-$1' );
 122                 var list = document.getElementById( listId );
 123                 if (list && list.value != 'othertime' ) {
 124                         if ( this.isUnchained() ) {
 125                                 list.value = 'othertime';
 126                         } else {
 127                                 this.forEachExpirySelector(function(element) {
 128                                         element.value = 'othertime';
 129                                 });
 130                         }
 131                 }
 132         },
 133
 134         /**
 135          * When protection levels are locked together, update the
 136          * expiry lists when one changes and clear the custom inputs
 137          *
 138          * @param source Element expiry selector that changed
 139          */
 140         'updateExpiryList': function(source) {
 141                 if( !this.isUnchained() ) {
 142                         var expiry = source.value;
 143                         this.forEachExpirySelector(function(element) {
 144                                 element.value = expiry;
 145                         });
 146                         this.forEachExpiryInput(function(element) {
 147                                 element.value = '';
 148                         });
 149                 }
 150         },
 151
 152         /**
 153          * Update chain status and enable/disable various bits of the UI
 154          * when the user changes the "unlock move permissions" checkbox
 155          */
 156         'onChainClick': function() {
 157                 if( this.isUnchained() ) {
 158                         this.enableUnchainedInputs( true );
 159                 } else {
 160                         this.setAllSelectors( this.getMaxLevel() );
 161                         this.enableUnchainedInputs( false );
 162                 }
 163                 this.updateCascadeCheckbox();
 164         },
 165
 166         /**
 167          * Returns true if the named attribute in all objects in the given array are matching
 168          */
 169         'matchAttribute' : function( objects, attrName ) {
 170                 var value = null;
 171
 172                 // Check levels
 173                 for ( var i = 0; i < objects.length; i++ ) {
 174                         var element = objects[i];
 175                         if ( value == null ) {
 176                                 value = element[attrName];
 177                         } else {
 178                                 if ( value != element[attrName] ) {
 179                                         return false;
 180                                 }
 181                         }
 182                 }
 183                 return true;
 184         },
 185
 186         /**
 187          * Are all actions protected at the same level, with the same expiry time?
 188          *
 189          * @return boolean
 190          */
 191         'areAllTypesMatching': function() {
 192                 return this.existingMatch
 193                         && this.matchAttribute( this.getLevelSelectors(), 'selectedIndex' )
 194                         && this.matchAttribute( this.getExpirySelectors(), 'selectedIndex' )
 195                         && this.matchAttribute( this.getExpiryInputs(), 'value' );
 196         },
 197
 198         /**
 199          * Is protection chaining off?
 200          *
 201          * @return bool
 202          */
 203         'isUnchained': function() {
 204                 var element = document.getElementById( 'mwProtectUnchained' );
 205                 return element
 206                         ? element.checked
 207                         : true; // No control, so we need to let the user set both levels
 208         },
 209
 210         /**
 211          * Find the highest protection level in any selector
 212          */
 213         'getMaxLevel': function() {
 214                 var maxIndex = -1;
 215                 this.forEachLevelSelector(function(element) {
 216                         if (element.selectedIndex > maxIndex) {
 217                                 maxIndex = element.selectedIndex;
 218                         }
 219                 });
 220                 return maxIndex;
 221         },
 222
 223         /**
 224          * Protect all actions at the specified level
 225          *
 226          * @param index int Protection level
 227          */
 228         'setAllSelectors': function(index) {
 229                 this.forEachLevelSelector(function(element) {
 230                         if (element.selectedIndex != index) {
 231                                 element.selectedIndex = index;
 232                         }
 233                 });
 234         },
 235
 236         /**
 237          * Apply a callback to each protection selector
 238          *
 239          * @param func callable Callback function
 240          */
 241         'forEachLevelSelector': function(func) {
 242                 var selectors = this.getLevelSelectors();
 243                 for (var i = 0; i < selectors.length; i++) {
 244                         func(selectors[i]);
 245                 }
 246         },
 247
 248         /**
 249          * Get a list of all protection selectors on the page
 250          *
 251          * @return Array
 252          */
 253         'getLevelSelectors': function() {
 254                 var all = document.getElementsByTagName("select");
 255                 var ours = new Array();
 256                 for (var i = 0; i < all.length; i++) {
 257                         var element = all[i];
 258                         if (element.id.match(/^mwProtect-level-/)) {
 259                                 ours[ours.length] = element;
 260                         }
 261                 }
 262                 return ours;
 263         },
 264
 265         /**
 266          * Apply a callback to each expiry input
 267          *
 268          * @param func callable Callback function
 269          */
 270         'forEachExpiryInput': function(func) {
 271                 var inputs = this.getExpiryInputs();
 272                 for (var i = 0; i < inputs.length; i++) {
 273                         func(inputs[i]);
 274                 }
 275         },
 276
 277         /**
 278          * Get a list of all expiry inputs on the page
 279          *
 280          * @return Array
 281          */
 282         'getExpiryInputs': function() {
 283                 var all = document.getElementsByTagName("input");
 284                 var ours = new Array();
 285                 for (var i = 0; i < all.length; i++) {
 286                         var element = all[i];
 287                         if (element.name.match(/^mwProtect-expiry-/)) {
 288                                 ours[ours.length] = element;
 289                         }
 290                 }
 291                 return ours;
 292         },
 293
 294         /**
 295          * Apply a callback to each expiry selector list
 296          * @param func callable Callback function
 297          */
 298         'forEachExpirySelector': function(func) {
 299                 var inputs = this.getExpirySelectors();
 300                 for (var i = 0; i < inputs.length; i++) {
 301                         func(inputs[i]);
 302                 }
 303         },
 304
 305         /**
 306          * Get a list of all expiry selector lists on the page
 307          *
 308          * @return Array
 309          */
 310         'getExpirySelectors': function() {
 311                 var all = document.getElementsByTagName("select");
 312                 var ours = new Array();
 313                 for (var i = 0; i < all.length; i++) {
 314                         var element = all[i];
 315                         if (element.id.match(/^mwProtectExpirySelection-/)) {
 316                                 ours[ours.length] = element;
 317                         }
 318                 }
 319                 return ours;
 320         },
 321
 322         /**
 323          * Enable/disable protection selectors and expiry inputs
 324          *
 325          * @param val boolean Enable?
 326          */
 327         'enableUnchainedInputs': function(val) {
 328                 var first = true;
 329                 this.forEachLevelSelector(function(element) {
 330                         if (first) {
 331                                 first = false;
 332                         } else {
 333                                 element.disabled = !val;
 334                         }
 335                 });
 336                 first = true;
 337                 this.forEachExpiryInput(function(element) {
 338                         if (first) {
 339                                 first = false;
 340                         } else {
 341                                 element.disabled = !val;
 342                         }
 343                 });
 344                 first = true;
 345                 this.forEachExpirySelector(function(element) {
 346                         if (first) {
 347                                 first = false;
 348                         } else {
 349                                 element.disabled = !val;
 350                         }
 351                 });
 352         }
 353 };