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namespace.js
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namespace.js
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/**
* Command handler for retrieving namespace suggestions.
*/
const { CommandPaletteItem, CommandPaletteCommand, CommandPaletteUpdateQueryAction, CommandPaletteNoneAction } = require( '../types.js' );
const { cdxIconArticles } = require( '../icons.json' );
const MAIN_NAMESPACE_ID = '0';
/**
* @typedef {Object} NamespaceResult
* @property {string} label The namespace label.
* @property {number} value The namespace ID.
*/
/**
* @param {NamespaceResult} nsResult
* @return {CommandPaletteItem}
*/
function adaptNamespaceResult( nsResult ) {
return {
id: `citizen-command-palette-item-namespace-${ nsResult.value }`,
thumbnailIcon: cdxIconArticles,
type: 'namespace',
label: nsResult.label,
value: `${ nsResult.label }:`,
metadata: [
{
label: nsResult.value
}
],
highlightQuery: true
};
}
/**
* Gets namespace suggestions based on the sub-query by filtering local config.
*
* @param {string} subQuery The part of the query after "/ns" or "/ns ", or the ID part (e.g., "1").
* @return {Promise<Array<CommandPaletteItem>>} A promise resolving to an array of adapted namespace items.
*/
function getNamespaceResults( subQuery ) {
// Fetch namespaces from MediaWiki configuration
const formattedNamespaces = mw.config.get( 'wgFormattedNamespaces' ) || {};
const allNamespaces = Object.entries( formattedNamespaces ).map( ( [ id, name ] ) => ( {
label: name,
value: id
} ) ).filter( ( ns ) => ns.value !== MAIN_NAMESPACE_ID ); // Use the constant here
const lowerQuery = subQuery.toLowerCase();
// Combine results using a Map to handle duplicates based on namespace ID (value)
const combinedResults = new Map();
if ( !subQuery ) {
// If the query is empty, return all namespaces
allNamespaces.forEach( ( ns ) => combinedResults.set( ns.value, ns ) );
} else {
// If query is not empty, filter by label and ID prefixes
allNamespaces.forEach( ( ns ) => {
// Check label prefix (case-insensitive)
if ( ns.label.toLowerCase().startsWith( lowerQuery ) ) {
combinedResults.set( ns.value, ns );
}
// Check ID prefix (case-sensitive)
if ( ns.value.startsWith( subQuery ) ) {
combinedResults.set( ns.value, ns );
}
} );
}
const results = Array.from( combinedResults.values(), adaptNamespaceResult );
return Promise.resolve( results );
}
/** @type {CommandPaletteCommand} */
module.exports = {
id: 'namespace',
triggers: [ '/ns:', ':' ],
label: mw.message( 'citizen-command-palette-command-ns-label' ).text(),
description: mw.message( 'citizen-command-palette-command-ns-description' ).text(),
getResults: getNamespaceResults,
/**
* Handles selection of a namespace result item.
*
* @param {CommandPaletteItem} item The selected namespace result item.
* @return {CommandPaletteUpdateQueryAction | CommandPaletteNoneAction}
*/
onResultSelect( item ) {
// Default behavior: update query with the namespace trigger (e.g., "Talk:")
if ( item.value && typeof item.value === 'string' ) {
return { action: 'updateQuery', payload: item.value };
}
return { action: 'none' };
}
};

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