resources/src/mediawiki.rcfilters/dm/ItemModel.js
/**
* RCFilter base item model.
*
* @class mw.rcfilters.dm.ItemModel
* @ignore
* @mixes OO.EventEmitter
*
* @param {string} param Filter param name
* @param {Object} config Configuration object
* @param {string} [config.label] The label for the filter
* @param {string} [config.description] The description of the filter
* @param {string|Object} [config.labelPrefixKey] An i18n key defining the prefix label for this
* group. If the prefix has 'invert' state, the parameter is expected to be an object
* with 'default' and 'inverted' as keys.
* @param {boolean} [config.active=true] The filter is active and affecting the result
* @param {boolean} [config.selected] The item is selected
* @param {any} [config.value] The value of this item
* @param {string} [config.namePrefix='item_'] A prefix to add to the param name to act as a unique
* identifier
* @param {string} [config.cssClass] The class identifying the results that match this filter
* @param {string[]} [config.identifiers] An array of identifiers for this item. They will be
* added and considered in the view.
* @param {string} [config.defaultHighlightColor=null] If set, highlight this filter by default with this color
*/
var ItemModel = function MwRcfiltersDmItemModel( param, config ) {
config = config || {};
// Mixin constructor
OO.EventEmitter.call( this );
this.param = param;
this.namePrefix = config.namePrefix || 'item_';
this.name = this.namePrefix + param;
this.label = config.label || this.name;
this.labelPrefixKey = config.labelPrefixKey;
this.description = config.description || '';
this.setValue( config.value || config.selected );
this.identifiers = config.identifiers || [];
// Highlight
this.cssClass = config.cssClass;
this.highlightColor = config.defaultHighlightColor || null;
};
/* Initialization */
OO.initClass( ItemModel );
OO.mixinClass( ItemModel, OO.EventEmitter );
/* Events */
/**
* The state of this filter has changed.
*
* @event update
* @ignore
*/
/* Methods */
/**
* Return the representation of the state of this item.
*
* @return {Object} State of the object
*/
ItemModel.prototype.getState = function () {
return {
selected: this.isSelected()
};
};
/**
* Get the name of this filter
*
* @return {string} Filter name
*/
ItemModel.prototype.getName = function () {
return this.name;
};
/**
* Get the message key to use to wrap the label. This message takes the label as a parameter.
*
* @param {boolean} inverted Whether this item should be considered inverted
* @return {string|null} Message key, or null if no message
*/
ItemModel.prototype.getLabelMessageKey = function ( inverted ) {
if ( this.labelPrefixKey ) {
if ( typeof this.labelPrefixKey === 'string' ) {
return this.labelPrefixKey;
}
return this.labelPrefixKey[
// Only use inverted-prefix if the item is selected
// Highlight-only an inverted item makes no sense
inverted && this.isSelected() ?
'inverted' : 'default'
];
}
return null;
};
/**
* Get the param name or value of this filter
*
* @return {string} Filter param name
*/
ItemModel.prototype.getParamName = function () {
return this.param;
};
/**
* Get the message representing the state of this model.
*
* @return {string} State message
*/
ItemModel.prototype.getStateMessage = function () {
// Display description
return this.getDescription();
};
/**
* Get the label of this filter
*
* @return {string} Filter label
*/
ItemModel.prototype.getLabel = function () {
return this.label;
};
/**
* Get the description of this filter
*
* @return {string} Filter description
*/
ItemModel.prototype.getDescription = function () {
return this.description;
};
/**
* Get the default value of this filter
*
* @return {boolean} Filter default
*/
ItemModel.prototype.getDefault = function () {
return this.default;
};
/**
* Get the selected state of this filter
*
* @return {boolean} Filter is selected
*/
ItemModel.prototype.isSelected = function () {
return !!this.value;
};
/**
* Toggle the selected state of the item
*
* @param {boolean} [isSelected] Filter is selected
* @fires update
*/
ItemModel.prototype.toggleSelected = function ( isSelected ) {
isSelected = isSelected === undefined ? !this.isSelected() : isSelected;
this.setValue( isSelected );
};
/**
* Get the value
*
* @return {any}
*/
ItemModel.prototype.getValue = function () {
return this.value;
};
/**
* Convert a given value to the appropriate representation based on group type
*
* @param {any} value
* @return {any}
*/
ItemModel.prototype.coerceValue = function ( value ) {
return this.getGroupModel().getType() === 'any_value' ? value : !!value;
};
/**
* Set the value
*
* @param {any} newValue
*/
ItemModel.prototype.setValue = function ( newValue ) {
newValue = this.coerceValue( newValue );
if ( this.value !== newValue ) {
this.value = newValue;
this.emit( 'update' );
}
};
/**
* Set the highlight color
*
* @param {string|null} highlightColor
*/
ItemModel.prototype.setHighlightColor = function ( highlightColor ) {
if ( !this.isHighlightSupported() ) {
return;
}
// If the highlight color on the item and in the parameter is null/undefined, return early.
if ( !this.highlightColor && !highlightColor ) {
return;
}
if ( this.highlightColor !== highlightColor ) {
this.highlightColor = highlightColor;
this.emit( 'update' );
}
};
/**
* Clear the highlight color
*/
ItemModel.prototype.clearHighlightColor = function () {
this.setHighlightColor( null );
};
/**
* Get the highlight color, or null if none is configured
*
* @return {string|null}
*/
ItemModel.prototype.getHighlightColor = function () {
return this.highlightColor;
};
/**
* Get the CSS class that matches changes that fit this filter
* or null if none is configured
*
* @return {string|null}
*/
ItemModel.prototype.getCssClass = function () {
return this.cssClass;
};
/**
* Get the item's identifiers
*
* @return {string[]}
*/
ItemModel.prototype.getIdentifiers = function () {
return this.identifiers;
};
/**
* Check if the highlight feature is supported for this filter
*
* @return {boolean}
*/
ItemModel.prototype.isHighlightSupported = function () {
return !!this.getCssClass() && !OO.ui.isMobile();
};
/**
* Check if the filter is currently highlighted
*
* @return {boolean}
*/
ItemModel.prototype.isHighlighted = function () {
return !!this.getHighlightColor();
};
module.exports = ItemModel;