1 files changed, 351 insertions, 0 deletions
diff --git a/skins/common/protect.js b/skins/common/protect.js
new file mode 100644
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--- /dev/null
+++ b/skins/common/protect.js
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+
+var ProtectionForm = {
+	'existingMatch': false,
+
+	/**
+	 * Set up the protection chaining interface (i.e. "unlock move permissions" checkbox)
+	 * on the protection form
+	 *
+	 * @param Object opts : parameters with members:
+	 *     tableId              Identifier of the table containing UI bits
+	 *     labelText            Text to use for the checkbox label
+	 *     numTypes             The number of protection types
+	 *     existingMatch        True if all the existing expiry times match
+	 */
+	'init': function( opts ) {
+		if( !( document.createTextNode && document.getElementById && document.getElementsByTagName ) )
+			return false;
+
+		var box = document.getElementById( opts.tableId );
+		if( !box )
+			return false;
+		
+		var boxbody = box.getElementsByTagName('tbody')[0]
+		var row = document.createElement( 'tr' );
+		boxbody.insertBefore( row, boxbody.firstChild.nextSibling );
+
+		this.existingMatch = opts.existingMatch;
+
+		var cell = document.createElement( 'td' );
+		row.appendChild( cell );
+		// If there is only one protection type, there is nothing to chain
+		if( opts.numTypes > 1 ) {
+			var check = document.createElement( 'input' );
+			check.id = 'mwProtectUnchained';
+			check.type = 'checkbox';
+			cell.appendChild( check );
+			addClickHandler( check, function() { ProtectionForm.onChainClick(); } );
+
+			cell.appendChild( document.createTextNode( ' ' ) );
+			var label = document.createElement( 'label' );
+			label.htmlFor = 'mwProtectUnchained';
+			label.appendChild( document.createTextNode( opts.labelText ) );
+			cell.appendChild( label );
+
+			check.checked = !this.areAllTypesMatching();
+			this.enableUnchainedInputs( check.checked );
+		}
+
+		this.updateCascadeCheckbox();
+
+		return true;
+	},
+
+	/**
+	 * Sets the disabled attribute on the cascade checkbox depending on the current selected levels
+	 */
+	'updateCascadeCheckbox': function() {
+		// For non-existent titles, there is no cascade option
+		if( !document.getElementById( 'mwProtect-cascade' ) ) {
+			return;
+		}
+		var lists = this.getLevelSelectors();
+		for( var i = 0; i < lists.length; i++ ) {
+			if( lists[i].selectedIndex > -1 ) {
+				var items = lists[i].getElementsByTagName( 'option' );
+				var selected = items[ lists[i].selectedIndex ].value;
+				if( !this.isCascadeableLevel(selected) ) {
+					document.getElementById( 'mwProtect-cascade' ).checked = false;
+					document.getElementById( 'mwProtect-cascade' ).disabled = true;
+					return;
+				}
+			}
+		}
+		document.getElementById( 'mwProtect-cascade' ).disabled = false;
+	},
+
+	/**
+	 * Is this protection level cascadeable?
+	 * @param String level
+	 *
+	 * @return boolean
+	 *
+	 */
+	'isCascadeableLevel': function( level ) {
+		for (var k = 0; k < wgCascadeableLevels.length; k++) {
+			if ( wgCascadeableLevels[k] == level ) {
+				return true;
+			}
+		}
+		return false;
+	},
+
+	/**
+	 * When protection levels are locked together, update the rest
+	 * when one action's level changes
+	 *
+	 * @param Element source Level selector that changed
+	 */
+	'updateLevels': function(source) {
+		if( !this.isUnchained() )
+			this.setAllSelectors( source.selectedIndex );
+		this.updateCascadeCheckbox();
+	},
+
+	/**
+	 * When protection levels are locked together, update the
+	 * expiries when one changes
+	 *
+	 * @param Element source expiry input that changed
+	 */
+
+	'updateExpiry': function(source) {
+		if( !this.isUnchained() ) {
+			var expiry = source.value;
+			this.forEachExpiryInput(function(element) {
+				element.value = expiry;
+			});
+		}
+		var listId = source.id.replace( /^mwProtect-(\w+)-expires$/, 'mwProtectExpirySelection-$1' );
+		var list = document.getElementById( listId );
+		if (list && list.value != 'othertime' ) {
+			if ( this.isUnchained() ) {
+				list.value = 'othertime';
+			} else {
+				this.forEachExpirySelector(function(element) {
+					element.value = 'othertime';
+				});
+			}
+		}
+	},
+
+	/**
+	 * When protection levels are locked together, update the
+	 * expiry lists when one changes and clear the custom inputs
+	 *
+	 * @param Element source expiry selector that changed
+	 */
+	'updateExpiryList': function(source) {
+		if( !this.isUnchained() ) {
+			var expiry = source.value;
+			this.forEachExpirySelector(function(element) {
+				element.value = expiry;
+			});
+			this.forEachExpiryInput(function(element) {
+				element.value = '';
+			});
+		}
+	},
+
+	/**
+	 * Update chain status and enable/disable various bits of the UI
+	 * when the user changes the "unlock move permissions" checkbox
+	 */
+	'onChainClick': function() {
+		if( this.isUnchained() ) {
+			this.enableUnchainedInputs( true );
+		} else {
+			this.setAllSelectors( this.getMaxLevel() );
+			this.enableUnchainedInputs( false );
+		}
+		this.updateCascadeCheckbox();
+	},
+
+	/**
+	 * Returns true if the named attribute in all objects in the given array are matching
+	 */
+	'matchAttribute' : function( objects, attrName ) {
+		var value = null;
+
+		// Check levels
+		for ( var i = 0; i < objects.length; i++ ) {
+			var element = objects[i];
+			if ( value == null ) {
+				value = element[attrName];
+			} else {
+				if ( value != element[attrName] ) {
+					return false;
+				}
+			}
+		}
+		return true;
+	},
+
+	/**
+	 * Are all actions protected at the same level, with the same expiry time?
+	 *
+	 * @return boolean
+	 */
+	'areAllTypesMatching': function() {
+		return this.existingMatch
+			&& this.matchAttribute( this.getLevelSelectors(), 'selectedIndex' )
+			&& this.matchAttribute( this.getExpirySelectors(), 'selectedIndex' )
+			&& this.matchAttribute( this.getExpiryInputs(), 'value' );
+	},
+
+	/**
+	 * Is protection chaining off?
+	 *
+	 * @return bool
+	 */
+	'isUnchained': function() {
+		var element = document.getElementById( 'mwProtectUnchained' );
+		return element
+			? element.checked
+			: true; // No control, so we need to let the user set both levels
+	},
+
+	/**
+	 * Find the highest protection level in any selector
+	 */
+	'getMaxLevel': function() {
+		var maxIndex = -1;
+		this.forEachLevelSelector(function(element) {
+			if (element.selectedIndex > maxIndex) {
+				maxIndex = element.selectedIndex;
+			}
+		});
+		return maxIndex;
+	},
+
+	/**
+	 * Protect all actions at the specified level
+	 *
+	 * @param int index Protection level
+	 */
+	'setAllSelectors': function(index) {
+		this.forEachLevelSelector(function(element) {
+			if (element.selectedIndex != index) {
+				element.selectedIndex = index;
+			}
+		});
+	},
+
+	/**
+	 * Apply a callback to each protection selector
+	 *
+	 * @param callable func Callback function
+	 */
+	'forEachLevelSelector': function(func) {
+		var selectors = this.getLevelSelectors();
+		for (var i = 0; i < selectors.length; i++) {
+			func(selectors[i]);
+		}
+	},
+
+	/**
+	 * Get a list of all protection selectors on the page
+	 *
+	 * @return Array
+	 */
+	'getLevelSelectors': function() {
+		var all = document.getElementsByTagName("select");
+		var ours = new Array();
+		for (var i = 0; i < all.length; i++) {
+			var element = all[i];
+			if (element.id.match(/^mwProtect-level-/)) {
+				ours[ours.length] = element;
+			}
+		}
+		return ours;
+	},
+
+	/**
+	 * Apply a callback to each expiry input
+	 *
+	 * @param callable func Callback function
+	 */
+	'forEachExpiryInput': function(func) {
+		var inputs = this.getExpiryInputs();
+		for (var i = 0; i < inputs.length; i++) {
+			func(inputs[i]);
+		}
+	},
+
+	/**
+	 * Get a list of all expiry inputs on the page
+	 *
+	 * @return Array
+	 */
+	'getExpiryInputs': function() {
+		var all = document.getElementsByTagName("input");
+		var ours = new Array();
+		for (var i = 0; i < all.length; i++) {
+			var element = all[i];
+			if (element.name.match(/^mwProtect-expiry-/)) {
+				ours[ours.length] = element;
+			}
+		}
+		return ours;
+	},
+
+	/**
+	 * Apply a callback to each expiry selector list
+	 * @param callable func Callback function
+	 */
+	'forEachExpirySelector': function(func) {
+		var inputs = this.getExpirySelectors();
+		for (var i = 0; i < inputs.length; i++) {
+			func(inputs[i]);
+		}
+	},
+
+	/**
+	 * Get a list of all expiry selector lists on the page
+	 *
+	 * @return Array
+	 */
+	'getExpirySelectors': function() {
+		var all = document.getElementsByTagName("select");
+		var ours = new Array();
+		for (var i = 0; i < all.length; i++) {
+			var element = all[i];
+			if (element.id.match(/^mwProtectExpirySelection-/)) {
+				ours[ours.length] = element;
+			}
+		}
+		return ours;
+	},
+
+	/**
+	 * Enable/disable protection selectors and expiry inputs
+	 *
+	 * @param boolean val Enable?
+	 */
+	'enableUnchainedInputs': function(val) {
+		var first = true;
+		this.forEachLevelSelector(function(element) {
+			if (first) {
+				first = false;
+			} else {
+				element.disabled = !val;
+			}
+		});
+		first = true;
+		this.forEachExpiryInput(function(element) {
+			if (first) {
+				first = false;
+			} else {
+				element.disabled = !val;
+			}
+		});
+		first = true;
+		this.forEachExpirySelector(function(element) {
+			if (first) {
+				first = false;
+			} else {
+				element.disabled = !val;
+			}
+		});
+	}
+}