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mw.echo.api.NetworkHandler.js
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mw.echo.api.NetworkHandler.js
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/**
* Network handler for echo notifications. Manages multiple APIHandlers
* according to their sources.
*
* @class
*
* @constructor
* @param {Object} [config={}]
* @param {number} config.limit Number of notifications to fetch
*/
mw.echo.api.NetworkHandler = function MwEchoApiNetworkHandler( config ) {
config = config || {};
this.handlers = {};
// Add initial local handler
this.setApiHandler( 'local', new mw.echo.api.LocalAPIHandler( { limit: config.limit } ) );
};
/* Setup */
OO.initClass( mw.echo.api.NetworkHandler );
/* Static methods */
/**
* Wait for all promises to finish either with a resolve or reject and
* return them to the caller once they do.
*
* @param {jQuery.Promise[]} promiseArray An array of promises
* @return {jQuery.Promise} A promise that resolves when all the promises
* finished with some resolution or rejection.
*/
mw.echo.api.NetworkHandler.static.waitForAllPromises = function ( promiseArray ) {
let counter = 0;
const promises = promiseArray.slice( 0 ),
deferred = $.Deferred(),
countPromises = function () {
counter++;
if ( counter === promises.length ) {
deferred.resolve( promises );
}
};
if ( !promiseArray.length ) {
deferred.resolve();
}
for ( let i = 0; i < promises.length; i++ ) {
promises[ i ].always( countPromises );
}
return deferred.promise();
};
/* Methods */
/**
* Get the API handler that matches the symbolic name
*
* @param {string} name Symbolic name of the API handler
* @return {mw.echo.api.APIHandler|undefined} API handler, if exists
*/
mw.echo.api.NetworkHandler.prototype.getApiHandler = function ( name ) {
return this.handlers[ name ];
};
/**
* Set an API handler by passing in an instance of an mw.echo.api.APIHandler subclass directly.
*
* @param {string} name Symbolic name
* @param {mw.echo.api.APIHandler} handler Handler object
* @throws {Error} If handler already exists
*/
mw.echo.api.NetworkHandler.prototype.setApiHandler = function ( name, handler ) {
this.handlers[ name ] = handler;
};

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