2 * Set up the protection chaining interface (i.e. "unlock move permissions" checkbox)
3 * on the protection form
5 * @param String tableId Identifier of the table containing UI bits
6 * @param String labelText Text to use for the checkbox label
8 function protectInitialize( tableId
, labelText
, types
) {
9 if( !( document
.createTextNode
&& document
.getElementById
&& document
.getElementsByTagName
) )
12 var box
= document
.getElementById( tableId
);
16 var tbody
= box
.getElementsByTagName( 'tbody' )[0];
17 var row
= document
.createElement( 'tr' );
18 tbody
.appendChild( row
);
20 row
.appendChild( document
.createElement( 'td' ) );
21 var col
= document
.createElement( 'td' );
22 row
.appendChild( col
);
23 // If there is only one protection type, there is nothing to chain
25 var check
= document
.createElement( 'input' );
26 check
.id
= 'mwProtectUnchained';
27 check
.type
= 'checkbox';
28 col
.appendChild( check
);
29 addClickHandler( check
, protectChainUpdate
);
31 col
.appendChild( document
.createTextNode( ' ' ) );
32 var label
= document
.createElement( 'label' );
33 label
.setAttribute( 'for', 'mwProtectUnchained' );
34 label
.appendChild( document
.createTextNode( labelText
) );
35 col
.appendChild( label
);
37 check
.checked
= !protectAllMatch();
38 protectEnable( check
.checked
);
47 * Determine if, given the cascadeable protection levels
48 * and what is currently selected, if the cascade box
54 function setCascadeCheckbox() {
55 // For non-existent titles, there is no cascade option
56 if( !document
.getElementById( 'mwProtect-cascade' ) ) {
59 var lists
= protectSelectors();
60 for( var i
= 0; i
< lists
.length
; i
++ ) {
61 if( lists
[i
].selectedIndex
> -1 ) {
62 var items
= lists
[i
].getElementsByTagName( 'option' );
63 var selected
= items
[ lists
[i
].selectedIndex
].value
;
64 if( !isCascadeableLevel(selected
) ) {
65 document
.getElementById( 'mwProtect-cascade' ).checked
= false;
66 document
.getElementById( 'mwProtect-cascade' ).disabled
= true;
71 document
.getElementById( 'mwProtect-cascade' ).disabled
= false;
76 * Is this protection level cascadeable?
82 function isCascadeableLevel( level
) {
83 for (var k
= 0; k
< wgCascadeableLevels
.length
; k
++) {
84 if ( wgCascadeableLevels
[k
] == level
) {
92 * When protection levels are locked together, update the rest
93 * when one action's level changes
95 * @param Element source Level selector that changed
97 function protectLevelsUpdate(source
) {
98 if( !protectUnchained() )
99 protectUpdateAll( source
.selectedIndex
);
100 setCascadeCheckbox();
104 * Update chain status and enable/disable various bits of the UI
105 * when the user changes the "unlock move permissions" checkbox
107 function protectChainUpdate() {
108 if( protectUnchained() ) {
109 protectEnable( true );
112 protectEnable( false );
114 setCascadeCheckbox();
118 * Are all actions protected at the same level?
122 function protectAllMatch() {
123 var values
= new Array();
124 protectForSelectors(function(set) {
125 values
[values
.length
] = set.selectedIndex
;
127 for (var i
= 1; i
< values
.length
; i
++) {
128 if (values
[i
] != values
[0]) {
136 * Is protection chaining on or off?
140 function protectUnchained() {
141 var unchain
= document
.getElementById( 'mwProtectUnchained' );
144 : true; // No control, so we need to let the user set both levels
148 * Find the highest-protected action and set all others to that level
150 function protectChain() {
152 protectForSelectors(function(set) {
153 if (set.selectedIndex
> maxIndex
) {
154 maxIndex
= set.selectedIndex
;
157 protectUpdateAll(maxIndex
);
161 * Protect all actions at the specified level
163 * @param int index Protection level
165 function protectUpdateAll(index
) {
166 protectForSelectors(function(set) {
167 if (set.selectedIndex
!= index
) {
168 set.selectedIndex
= index
;
174 * Apply a callback to each protection selector
176 * @param callable func Callback function
178 function protectForSelectors(func
) {
179 var selectors
= protectSelectors();
180 for (var i
= 0; i
< selectors
.length
; i
++) {
186 * Get a list of all protection selectors on the page
190 function protectSelectors() {
191 var all
= document
.getElementsByTagName("select");
192 var ours
= new Array();
193 for (var i
= 0; i
< all
.length
; i
++) {
195 if (set.id
.match(/^mwProtect-level-/)) {
196 ours
[ours
.length
] = set;
203 * Enable/disable protection selectors
205 * @param boolean val Enable?
207 function protectEnable(val
) {
210 protectForSelectors(function(set) {
215 set.style
.visible
= val
? "visible" : "hidden";