Create controller.getApi method with defaults

Only share API objects when it is safe to do so.

Change-Id: I4810f59ce41c43f78e0b42db6b36620b2aca1cec

modules/CommentController.js

@@ -1,5 +1,4 @@
 var
-	api = new mw.Api( { parameters: { formatversion: 2 } } ),
 	controller = require( './controller.js' ),
 	modifier = require( './modifier.js' ),
 	logger = require( './logger.js' ),
@@ -48,7 +47,7 @@ OO.initClass( CommentController );
  * @return {jQuery.Promise}
  */
 function getLatestRevId( pageName ) {
-	return api.get( {
+	return controller.getApi().get( {
 		action: 'query',
 		prop: 'revisions',
 		rvprop: 'ids',
@@ -155,7 +154,7 @@ CommentController.prototype.setup = function ( mode ) {
 			commentController.teardown();
 
 			OO.ui.alert(
-				code instanceof Error ? code.toString() : api.getErrorMessage( data ),
+				code instanceof Error ? code.toString() : controller.getApi().getErrorMessage( data ),
 				{ size: 'medium' }
 			);
 
@@ -242,7 +241,8 @@ CommentController.prototype.save = function ( comment, pageName ) {
 		commentController = this;
 
 	return this.replyWidget.checkboxesPromise.then( function ( checkboxes ) {
-		var captchaInput = commentController.replyWidget.captchaInput,
+		var defaults, noTimeoutApi,
+			captchaInput = commentController.replyWidget.captchaInput,
 			data = {
 				action: 'discussiontoolsedit',
 				paction: 'addcomment',
@@ -251,6 +251,7 @@ CommentController.prototype.save = function ( comment, pageName ) {
 				summary: replyWidget.getEditSummary(),
 				assert: mw.user.isAnon() ? 'anon' : 'user',
 				assertuser: mw.user.getName() || undefined,
+				uselang: mw.config.get( 'wgUserLanguage' ),
 				dttags: [
 					'discussiontools',
 					'discussiontools-reply',
@@ -275,13 +276,14 @@ CommentController.prototype.save = function ( comment, pageName ) {
 				'unwatch';
 		}
 
+		// No timeout. Huge talk pages can take a long time to save, and falsely reporting an error
+		// could result in duplicate messages if the user retries. (T249071)
+		defaults = OO.copy( controller.getApi().defaults );
+		defaults.timeout = 0;
+		noTimeoutApi = new mw.Api( defaults );
+
 		return mw.libs.ve.targetSaver.postContent(
-			data,
-			{
-				// No timeout. Huge talk pages take a long time to save, and falsely reporting an error can
-				// result in duplicate messages when the user retries. (T249071)
-				api: new mw.Api( { ajax: { timeout: 0 }, parameters: { formatversion: 2 } } )
-			}
+			data, { api: noTimeoutApi }
 		).catch( function ( code, responseData ) {
 			// Better user-facing error messages
 			if ( code === 'editconflict' ) {
@@ -371,7 +373,7 @@ CommentController.prototype.switchToVisual = function () {
 		} ).join( '\n' );
 
 		// Based on ve.init.mw.Target#parseWikitextFragment
-		parsePromise = api.post( {
+		parsePromise = controller.getApi().post( {
 			action: 'visualeditor',
 			paction: 'parsefragment',
 			page: oldWidget.pageName,

modules/controller.js

@@ -1,7 +1,6 @@
 'use strict';
 
 var
-	api = new mw.Api( { parameters: { formatversion: 2 } } ),
 	$pageContainer,
 	Parser = require( './Parser.js' ),
 	ThreadItem = require( './ThreadItem.js' ),
@@ -10,6 +9,10 @@ var
 
 mw.messages.set( require( './controller/contLangMessages.json' ) );
 
+function getApi() {
+	return new mw.Api( { parameters: { formatversion: 2 } } );
+}
+
 function highlight( comment ) {
 	var padding = 5,
 		// $container must be position:relative/absolute
@@ -47,7 +50,9 @@ function highlight( comment ) {
  * @return {jQuery.Promise}
  */
 function getPageData( pageName, oldId ) {
-	var lintPromise, transcludedFromPromise, veMetadataPromise;
+	var lintPromise, transcludedFromPromise, veMetadataPromise,
+		api = getApi();
+
 	pageDataCache[ pageName ] = pageDataCache[ pageName ] || {};
 	if ( pageDataCache[ pageName ][ oldId ] ) {
 		return pageDataCache[ pageName ][ oldId ];
@@ -252,6 +257,7 @@ function init( $container, state ) {
 
 function update( data, comment, pageName, replyWidget ) {
 	var watch,
+		api = getApi(),
 		pageUpdated = $.Deferred();
 
 	// We posted a new comment, clear the cache, because wgCurRevisionId will not change if we posted
@@ -288,6 +294,7 @@ function update( data, comment, pageName, replyWidget ) {
 				// HACK: 'useskin' triggers a different code path that runs our OutputPageBeforeHTML hook,
 				// adding our reply links in the HTML (T266195)
 				useskin: mw.config.get( 'skin' ),
+				uselang: mw.config.get( 'wgUserLanguage' ),
 				prop: [ 'text', 'modules', 'jsconfigvars' ],
 				page: mw.config.get( 'wgRelevantPageName' )
 			} );
@@ -348,5 +355,6 @@ module.exports = {
 	init: init,
 	update: update,
 	checkCommentOnPage: checkCommentOnPage,
-	getCheckboxesPromise: getCheckboxesPromise
+	getCheckboxesPromise: getCheckboxesPromise,
+	getApi: getApi
 };

modules/dt-ve/dt.ui.UsernameCompletionAction.js

@@ -4,6 +4,8 @@
  * @copyright 2011-2019 VisualEditor Team and others; see http://ve.mit-license.org
  */
 
+var controller = require( 'ext.discussionTools.init' ).controller;
+
 /**
  * MWUsernameCompletionAction action.
  *
@@ -20,7 +22,8 @@ function MWUsernameCompletionAction( surface ) {
 	// Parent constructor
 	MWUsernameCompletionAction.super.call( this, surface );
 
-	this.api = new mw.Api( { parameters: { formatversion: 2 } } );
+	// Shared API object so previous requests can be aborted
+	this.api = controller.getApi();
 	this.searchedPrefixes = {};
 	this.localUsers = [];
 	this.ipUsers = [];

modules/dt.ui.ReplyWidget.js

@@ -157,7 +157,6 @@ function ReplyWidget( commentController, comment, pageName, oldId, config ) {
 	this.editSummaryInput.connect( this, { change: 'onEditSummaryChange' } );
 	this.editSummaryInput.$input.on( 'keydown', this.onKeyDown.bind( this, false ) );
 
-	this.api = new mw.Api( { parameters: { formatversion: 2 } } );
 	this.onInputChangeThrottled = OO.ui.throttle( this.onInputChange.bind( this ), 1000 );
 
 	// Initialization
@@ -275,7 +274,7 @@ ReplyWidget.prototype.setPending = function ( pending ) {
 };
 
 ReplyWidget.prototype.saveEditMode = function ( mode ) {
-	this.api.saveOption( 'discussiontools-editmode', mode ).then( function () {
+	controller.getApi().saveOption( 'discussiontools-editmode', mode ).then( function () {
 		mw.user.options.set( 'discussiontools-editmode', mode );
 	} );
 };
@@ -523,7 +522,7 @@ ReplyWidget.prototype.preparePreview = function ( wikitext ) {
 			wikitext = wikitext + '<span style="opacity: 0.6;">' + mw.msg( 'discussiontools-signature-prefix' ) + '~~~~</span>';
 		}
 		wikitext = indent + wikitext.replace( /\n/g, '\n' + indent );
-		this.previewRequest = parsePromise = this.api.post( {
+		this.previewRequest = parsePromise = controller.getApi().post( {
 			action: 'parse',
 			text: wikitext,
 			pst: true,