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@ckeditor/ckeditor5-watchdog
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@ckeditor/ckeditor5-watchdog - npm Package Compare versions
Comparing version 36.0.1 to 37.0.0-alpha.0
| /*! | ||
| * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved. | ||
| * For licensing, see LICENSE.md. | ||
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this.create(this._data,this._config,this._config.context);{const t=Object.assign({},this._config,{initialData:this._data});return this.create(this._elementOrData,t,t.context)}})).then((()=>{this._fire("restart")}))}create(t=this._elementOrData,e=this._config,r){return Promise.resolve().then((()=>(super._startErrorHandling(),this._elementOrData=t,this._config=this._cloneEditorConfiguration(e)||{},this._config.context=r,this._creator(t,this._config)))).then((t=>{this._editor=t,t.model.document.on("change:data",this._throttledSave),this._lastDocumentVersion=t.model.document.version,this._data=this._getData(),this.state="ready",this._fire("stateChange")}))}destroy(){return Promise.resolve().then((()=>(this.state="destroyed",this._fire("stateChange"),super.destroy(),this._destroy())))}_destroy(){return Promise.resolve().then((()=>{this._stopErrorHandling(),this._throttledSave.flush();const t=this._editor;return this._editor=null,t.model.document.off("change:data",this._throttledSave),this._destructor(t)}))}_save(){const t=this._editor.model.document.version;try{this._data=this._getData(),this._lastDocumentVersion=t}catch(t){console.error(t,"An error happened during restoring editor data. Editor will be restored from the previously saved data.")}}_setExcludedProperties(t){this._excludedProps=t}_getData(){const t={};for(const e of this._editor.model.document.getRootNames())t[e]=this._editor.data.get({rootName:e});return t}_isErrorComingFromThisItem(t){return s(this._editor,t.context,this._excludedProps)}_cloneEditorConfiguration(t){return xn(t,((t,e)=>Dn(t)||"context"===e?t:void 0))}}const Fn=Symbol("MainQueueId");class Wn extends r{constructor(t,e={}){super(e),this._watchdogs=new Map,this._context=null,this._contextProps=new Set,this._actionQueues=new Mn,this._watchdogConfig=e,this._creator=e=>t.create(e),this._destructor=t=>t.destroy(),this._actionQueues.onEmpty((()=>{"initializing"===this.state&&(this.state="ready",this._fire("stateChange"))}))}setCreator(t){this._creator=t}setDestructor(t){this._destructor=t}get context(){return this._context}create(t={}){return this._actionQueues.enqueue(Fn,(()=>(this._contextConfig=t,this._create())))}getItem(t){return this._getWatchdog(t)._item}getItemState(t){return this._getWatchdog(t).state}add(t){const e=Nn(t);return Promise.all(e.map((t=>this._actionQueues.enqueue(t.id,(()=>{if("destroyed"===this.state)throw new Error("Cannot add items to destroyed watchdog.");if(!this._context)throw new Error("Context was not created yet. You should call the `ContextWatchdog#create()` method first.");let e;if(this._watchdogs.has(t.id))throw new Error(`Item with the given id is already added: '${t.id}'.`);if("editor"===t.type)return e=new zn(null,this._watchdogConfig),e.setCreator(t.creator),e._setExcludedProperties(this._contextProps),t.destructor&&e.setDestructor(t.destructor),this._watchdogs.set(t.id,e),e.on("error",((r,{error:n,causesRestart:o})=>{this._fire("itemError",{itemId:t.id,error:n}),o&&this._actionQueues.enqueue(t.id,(()=>new Promise((r=>{const n=()=>{e.off("restart",n),this._fire("itemRestart",{itemId:t.id}),r()};e.on("restart",n)}))))})),e.create(t.sourceElementOrData,t.config,this._context);throw new Error(`Not supported item type: '${t.type}'.`)})))))}remove(t){const e=Nn(t);return Promise.all(e.map((t=>this._actionQueues.enqueue(t,(()=>{const e=this._getWatchdog(t);return this._watchdogs.delete(t),e.destroy()})))))}destroy(){return this._actionQueues.enqueue(Fn,(()=>(this.state="destroyed",this._fire("stateChange"),super.destroy(),this._destroy())))}_restart(){return this._actionQueues.enqueue(Fn,(()=>(this.state="initializing",this._fire("stateChange"),this._destroy().catch((t=>{console.error("An error happened during destroying the context or items.",t)})).then((()=>this._create())).then((()=>this._fire("restart"))))))}_create(){return Promise.resolve().then((()=>(this._startErrorHandling(),this._creator(this._contextConfig)))).then((t=>(this._context=t,this._contextProps=n(this._context),Promise.all(Array.from(this._watchdogs.values()).map((t=>(t._setExcludedProperties(this._contextProps),t.create(void 0,void 0,this._context))))))))}_destroy(){return Promise.resolve().then((()=>{this._stopErrorHandling();const t=this._context;return this._context=null,this._contextProps=new Set,Promise.all(Array.from(this._watchdogs.values()).map((t=>t.destroy()))).then((()=>this._destructor(t)))}))}_getWatchdog(t){const e=this._watchdogs.get(t);if(!e)throw new Error(`Item with the given id was not registered: ${t}.`);return e}_isErrorComingFromThisItem(t){for(const e of this._watchdogs.values())if(e._isErrorComingFromThisItem(t))return!1;return s(this._context,t.context)}}class Mn{constructor(){this._onEmptyCallbacks=[],this._queues=new Map,this._activeActions=0}onEmpty(t){this._onEmptyCallbacks.push(t)}enqueue(t,e){const r=t===Fn;this._activeActions++,this._queues.get(t)||this._queues.set(t,Promise.resolve());const n=(r?Promise.all(this._queues.values()):Promise.all([this._queues.get(Fn),this._queues.get(t)])).then(e),o=n.catch((()=>{}));return this._queues.set(t,o),n.finally((()=>{this._activeActions--,this._queues.get(t)===o&&0===this._activeActions&&this._onEmptyCallbacks.forEach((t=>t()))}))}}function Nn(t){return Array.isArray(t)?t:[t]}(window.CKEditor5=window.CKEditor5||{}).watchdog=e})(); |
| { | ||
| "name": "@ckeditor/ckeditor5-watchdog", | ||
| "version": "36.0.1", | ||
| "version": "37.0.0-alpha.0", | ||
| "description": "A watchdog feature for CKEditor 5 editors. It keeps a CKEditor 5 editor instance running.", | ||
@@ -17,9 +17,10 @@ "keywords": [ | ||
| "devDependencies": { | ||
| "@ckeditor/ckeditor5-core": "^36.0.1", | ||
| "@ckeditor/ckeditor5-dev-utils": "^32.0.0", | ||
| "@ckeditor/ckeditor5-editor-classic": "^36.0.1", | ||
| "@ckeditor/ckeditor5-paragraph": "^36.0.1", | ||
| "@ckeditor/ckeditor5-theme-lark": "^36.0.1", | ||
| "@ckeditor/ckeditor5-utils": "^36.0.1", | ||
| "ckeditor5": "^36.0.1", | ||
| "@ckeditor/ckeditor5-core": "^37.0.0-alpha.0", | ||
| "@ckeditor/ckeditor5-dev-utils": "^34.0.0", | ||
| "@ckeditor/ckeditor5-editor-classic": "^37.0.0-alpha.0", | ||
| "@ckeditor/ckeditor5-paragraph": "^37.0.0-alpha.0", | ||
| "@ckeditor/ckeditor5-theme-lark": "^37.0.0-alpha.0", | ||
| "@ckeditor/ckeditor5-utils": "^37.0.0-alpha.0", | ||
| "ckeditor5": "^37.0.0-alpha.0", | ||
| "typescript": "^4.8.4", | ||
| "webpack": "^5.58.1", | ||
@@ -43,3 +44,4 @@ "webpack-cli": "^4.9.0" | ||
| "lang", | ||
| "src", | ||
| "src/**/*.js", | ||
| "src/**/*.d.ts", | ||
| "theme", | ||
@@ -51,4 +53,7 @@ "build", | ||
| "scripts": { | ||
| "dll:build": "webpack" | ||
| } | ||
| "dll:build": "webpack", | ||
| "build": "tsc -p ./tsconfig.release.json", | ||
| "postversion": "npm run build" | ||
| }, | ||
| "types": "src/index.d.ts" | ||
| } |
@@ -5,9 +5,2 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog/contextwatchdog | ||
| */ | ||
| /* globals console */ | ||
| import Watchdog from './watchdog'; | ||
@@ -17,5 +10,3 @@ import EditorWatchdog from './editorwatchdog'; | ||
| import getSubNodes from './utils/getsubnodes'; | ||
| const mainQueueId = Symbol( 'MainQueueId' ); | ||
| const mainQueueId = Symbol('MainQueueId'); | ||
| /** | ||
@@ -26,546 +17,397 @@ * A watchdog for the {@link module:core/context~Context} class. | ||
| * how to use it. | ||
| * | ||
| * @extends {module:watchdog/watchdog~Watchdog} | ||
| */ | ||
| export default class ContextWatchdog extends Watchdog { | ||
| /** | ||
| * The context watchdog class constructor. | ||
| * | ||
| * const watchdog = new ContextWatchdog( Context ); | ||
| * | ||
| * await watchdog.create( contextConfiguration ); | ||
| * | ||
| * await watchdog.add( item ); | ||
| * | ||
| * See the {@glink features/watchdog Watchdog feature guide} to learn more how to use this feature. | ||
| * | ||
| * @param {Function} Context The {@link module:core/context~Context} class. | ||
| * @param {module:watchdog/watchdog~WatchdogConfig} [watchdogConfig] The watchdog configuration. | ||
| */ | ||
| constructor( Context, watchdogConfig = {} ) { | ||
| super( watchdogConfig ); | ||
| /** | ||
| * A map of internal watchdogs for added items. | ||
| * | ||
| * @protected | ||
| * @type {Map.<string,module:watchdog/watchdog~EditorWatchdog>} | ||
| */ | ||
| this._watchdogs = new Map(); | ||
| /** | ||
| * The watchdog configuration. | ||
| * | ||
| * @private | ||
| * @type {module:watchdog/watchdog~WatchdogConfig} | ||
| */ | ||
| this._watchdogConfig = watchdogConfig; | ||
| /** | ||
| * The current context instance. | ||
| * | ||
| * @private | ||
| * @type {module:core/context~Context|null} | ||
| */ | ||
| this._context = null; | ||
| /** | ||
| * Context properties (nodes/references) that are gathered during the initial context creation | ||
| * and are used to distinguish the origin of an error. | ||
| * | ||
| * @private | ||
| * @type {Set.<*>} | ||
| */ | ||
| this._contextProps = new Set(); | ||
| /** | ||
| * An action queue, which is used to handle async functions queuing. | ||
| * | ||
| * @private | ||
| * @type {ActionQueues} | ||
| */ | ||
| this._actionQueues = new ActionQueues(); | ||
| /** | ||
| * The configuration for the {@link module:core/context~Context}. | ||
| * | ||
| * @private | ||
| * @member {Object} #_contextConfig | ||
| */ | ||
| /** | ||
| * The context configuration. | ||
| * | ||
| * @private | ||
| * @member {Object|undefined} #_config | ||
| */ | ||
| // Default creator and destructor. | ||
| this._creator = contextConfig => Context.create( contextConfig ); | ||
| this._destructor = context => context.destroy(); | ||
| this._actionQueues.onEmpty( () => { | ||
| if ( this.state === 'initializing' ) { | ||
| this.state = 'ready'; | ||
| this._fire( 'stateChange' ); | ||
| } | ||
| } ); | ||
| /** | ||
| * Sets the function that is responsible for the context creation. | ||
| * It expects a function that should return a promise (or `undefined`). | ||
| * | ||
| * watchdog.setCreator( config => Context.create( config ) ); | ||
| * | ||
| * @method #setCreator | ||
| * @param {Function} creator | ||
| */ | ||
| /** | ||
| * Sets the function that is responsible for the context destruction. | ||
| * Overrides the default destruction function, which destroys only the context instance. | ||
| * It expects a function that should return a promise (or `undefined`). | ||
| * | ||
| * watchdog.setDestructor( context => { | ||
| * // Do something before the context is destroyed. | ||
| * | ||
| * return context | ||
| * .destroy() | ||
| * .then( () => { | ||
| * // Do something after the context is destroyed. | ||
| * } ); | ||
| * } ); | ||
| * | ||
| * @method #setDestructor | ||
| * @param {Function} destructor | ||
| */ | ||
| } | ||
| /** | ||
| * The context instance. Keep in mind that this property might be changed when the context watchdog restarts, | ||
| * so do not keep this instance internally. Always operate on the `ContextWatchdog#context` property. | ||
| * | ||
| * @type {module:core/context~Context|null} | ||
| */ | ||
| get context() { | ||
| return this._context; | ||
| } | ||
| /** | ||
| * Initializes the context watchdog. Once it is created, the watchdog takes care about | ||
| * recreating the context and the provided items, and starts the error handling mechanism. | ||
| * | ||
| * await watchdog.create( { | ||
| * plugins: [] | ||
| * } ); | ||
| * | ||
| * @param {Object} [contextConfig] The context configuration. See {@link module:core/context~Context}. | ||
| * @returns {Promise} | ||
| */ | ||
| create( contextConfig = {} ) { | ||
| return this._actionQueues.enqueue( mainQueueId, () => { | ||
| this._contextConfig = contextConfig; | ||
| return this._create(); | ||
| } ); | ||
| } | ||
| /** | ||
| * Returns an item instance with the given `itemId`. | ||
| * | ||
| * const editor1 = watchdog.getItem( 'editor1' ); | ||
| * | ||
| * @param {String} itemId The item ID. | ||
| * @returns {*} The item instance or `undefined` if an item with a given ID has not been found. | ||
| */ | ||
| getItem( itemId ) { | ||
| const watchdog = this._getWatchdog( itemId ); | ||
| return watchdog._item; | ||
| } | ||
| /** | ||
| * Gets the state of the given item. See {@link #state} for a list of available states. | ||
| * | ||
| * const editor1State = watchdog.getItemState( 'editor1' ); | ||
| * | ||
| * @param {String} itemId Item ID. | ||
| * @returns {'initializing'|'ready'|'crashed'|'crashedPermanently'|'destroyed'} The state of the item. | ||
| */ | ||
| getItemState( itemId ) { | ||
| const watchdog = this._getWatchdog( itemId ); | ||
| return watchdog.state; | ||
| } | ||
| /** | ||
| * Adds items to the watchdog. Once created, instances of these items will be available using the {@link #getItem} method. | ||
| * | ||
| * Items can be passed together as an array of objects: | ||
| * | ||
| * await watchdog.add( [ { | ||
| * id: 'editor1', | ||
| * type: 'editor', | ||
| * sourceElementOrData: document.querySelector( '#editor' ), | ||
| * config: { | ||
| * plugins: [ Essentials, Paragraph, Bold, Italic ], | ||
| * toolbar: [ 'bold', 'italic', 'alignment' ] | ||
| * }, | ||
| * creator: ( element, config ) => ClassicEditor.create( element, config ) | ||
| * } ] ); | ||
| * | ||
| * Or one by one as objects: | ||
| * | ||
| * await watchdog.add( { | ||
| * id: 'editor1', | ||
| * type: 'editor', | ||
| * sourceElementOrData: document.querySelector( '#editor' ), | ||
| * config: { | ||
| * plugins: [ Essentials, Paragraph, Bold, Italic ], | ||
| * toolbar: [ 'bold', 'italic', 'alignment' ] | ||
| * }, | ||
| * creator: ( element, config ) => ClassicEditor.create( element, config ) | ||
| * ] ); | ||
| * | ||
| * Then an instance can be retrieved using the {@link #getItem} method: | ||
| * | ||
| * const editor1 = watchdog.getItem( 'editor1' ); | ||
| * | ||
| * Note that this method can be called multiple times, but for performance reasons it is better | ||
| * to pass all items together. | ||
| * | ||
| * @param {module:watchdog/contextwatchdog~WatchdogItemConfiguration|Array.<module:watchdog/contextwatchdog~WatchdogItemConfiguration>} | ||
| * itemConfigurationOrItemConfigurations An item configuration object or an array of item configurations. | ||
| * @returns {Promise} | ||
| */ | ||
| add( itemConfigurationOrItemConfigurations ) { | ||
| const itemConfigurations = toArray( itemConfigurationOrItemConfigurations ); | ||
| return Promise.all( itemConfigurations.map( item => { | ||
| return this._actionQueues.enqueue( item.id, () => { | ||
| if ( this.state === 'destroyed' ) { | ||
| throw new Error( 'Cannot add items to destroyed watchdog.' ); | ||
| } | ||
| if ( !this._context ) { | ||
| throw new Error( 'Context was not created yet. You should call the `ContextWatchdog#create()` method first.' ); | ||
| } | ||
| let watchdog; | ||
| if ( this._watchdogs.has( item.id ) ) { | ||
| throw new Error( `Item with the given id is already added: '${ item.id }'.` ); | ||
| } | ||
| if ( item.type === 'editor' ) { | ||
| watchdog = new EditorWatchdog( this._watchdogConfig ); | ||
| watchdog.setCreator( item.creator ); | ||
| watchdog._setExcludedProperties( this._contextProps ); | ||
| if ( item.destructor ) { | ||
| watchdog.setDestructor( item.destructor ); | ||
| } | ||
| this._watchdogs.set( item.id, watchdog ); | ||
| // Enqueue the internal watchdog errors within the main queue. | ||
| // And propagate the internal `error` events as `itemError` event. | ||
| watchdog.on( 'error', ( evt, { error, causesRestart } ) => { | ||
| this._fire( 'itemError', { itemId: item.id, error } ); | ||
| // Do not enqueue the item restart action if the item will not restart. | ||
| if ( !causesRestart ) { | ||
| return; | ||
| } | ||
| this._actionQueues.enqueue( item.id, () => new Promise( res => { | ||
| watchdog.on( 'restart', rethrowRestartEventOnce.bind( this ) ); | ||
| function rethrowRestartEventOnce() { | ||
| watchdog.off( 'restart', rethrowRestartEventOnce ); | ||
| this._fire( 'itemRestart', { itemId: item.id } ); | ||
| res(); | ||
| } | ||
| } ) ); | ||
| } ); | ||
| return watchdog.create( item.sourceElementOrData, item.config, this._context ); | ||
| } else { | ||
| throw new Error( `Not supported item type: '${ item.type }'.` ); | ||
| } | ||
| } ); | ||
| } ) ); | ||
| } | ||
| /** | ||
| * Removes and destroys item(s) with given ID(s). | ||
| * | ||
| * await watchdog.remove( 'editor1' ); | ||
| * | ||
| * Or | ||
| * | ||
| * await watchdog.remove( [ 'editor1', 'editor2' ] ); | ||
| * | ||
| * @param {Array.<String>|String} itemIdOrItemIds Item ID or an array of item IDs. | ||
| * @returns {Promise} | ||
| */ | ||
| remove( itemIdOrItemIds ) { | ||
| const itemIds = toArray( itemIdOrItemIds ); | ||
| return Promise.all( itemIds.map( itemId => { | ||
| return this._actionQueues.enqueue( itemId, () => { | ||
| const watchdog = this._getWatchdog( itemId ); | ||
| this._watchdogs.delete( itemId ); | ||
| return watchdog.destroy(); | ||
| } ); | ||
| } ) ); | ||
| } | ||
| /** | ||
| * Destroys the context watchdog and all added items. | ||
| * Once the context watchdog is destroyed, new items cannot be added. | ||
| * | ||
| * await watchdog.destroy(); | ||
| * | ||
| * @returns {Promise} | ||
| */ | ||
| destroy() { | ||
| return this._actionQueues.enqueue( mainQueueId, () => { | ||
| this.state = 'destroyed'; | ||
| this._fire( 'stateChange' ); | ||
| super.destroy(); | ||
| return this._destroy(); | ||
| } ); | ||
| } | ||
| /** | ||
| * Restarts the context watchdog. | ||
| * | ||
| * @protected | ||
| * @returns {Promise} | ||
| */ | ||
| _restart() { | ||
| return this._actionQueues.enqueue( mainQueueId, () => { | ||
| this.state = 'initializing'; | ||
| this._fire( 'stateChange' ); | ||
| return this._destroy() | ||
| .catch( err => { | ||
| console.error( 'An error happened during destroying the context or items.', err ); | ||
| } ) | ||
| .then( () => this._create() ) | ||
| .then( () => this._fire( 'restart' ) ); | ||
| } ); | ||
| } | ||
| /** | ||
| * @private | ||
| * @returns {Promise} | ||
| */ | ||
| _create() { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| this._startErrorHandling(); | ||
| return this._creator( this._contextConfig ); | ||
| } ) | ||
| .then( context => { | ||
| this._context = context; | ||
| this._contextProps = getSubNodes( this._context ); | ||
| return Promise.all( | ||
| Array.from( this._watchdogs.values() ) | ||
| .map( watchdog => { | ||
| watchdog._setExcludedProperties( this._contextProps ); | ||
| return watchdog.create( undefined, undefined, this._context ); | ||
| } ) | ||
| ); | ||
| } ); | ||
| } | ||
| /** | ||
| * Destroys the context instance and all added items. | ||
| * | ||
| * @private | ||
| * @returns {Promise} | ||
| */ | ||
| _destroy() { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| this._stopErrorHandling(); | ||
| const context = this._context; | ||
| this._context = null; | ||
| this._contextProps = new Set(); | ||
| return Promise.all( | ||
| Array.from( this._watchdogs.values() ) | ||
| .map( watchdog => watchdog.destroy() ) | ||
| ) | ||
| // Context destructor destroys each editor. | ||
| .then( () => this._destructor( context ) ); | ||
| } ); | ||
| } | ||
| /** | ||
| * Returns the watchdog for a given item ID. | ||
| * | ||
| * @protected | ||
| * @param {String} itemId Item ID. | ||
| * @returns {module:watchdog/watchdog~Watchdog} Watchdog | ||
| */ | ||
| _getWatchdog( itemId ) { | ||
| const watchdog = this._watchdogs.get( itemId ); | ||
| if ( !watchdog ) { | ||
| throw new Error( `Item with the given id was not registered: ${ itemId }.` ); | ||
| } | ||
| return watchdog; | ||
| } | ||
| /** | ||
| * Checks whether an error comes from the context instance and not from the item instances. | ||
| * | ||
| * @protected | ||
| * @param {Error} error | ||
| * @returns {Boolean} | ||
| */ | ||
| _isErrorComingFromThisItem( error ) { | ||
| for ( const watchdog of this._watchdogs.values() ) { | ||
| if ( watchdog._isErrorComingFromThisItem( error ) ) { | ||
| return false; | ||
| } | ||
| } | ||
| return areConnectedThroughProperties( this._context, error.context ); | ||
| } | ||
| /** | ||
| * Fired after the watchdog restarts the context and the added items because of a crash. | ||
| * | ||
| * watchdog.on( 'restart', () => { | ||
| * console.log( 'The context has been restarted.' ); | ||
| * } ); | ||
| * | ||
| * @event restart | ||
| */ | ||
| /** | ||
| * Fired when a new error occurred in one of the added items. | ||
| * | ||
| * watchdog.on( 'itemError', ( evt, { error, itemId, causesRestart } ) => { | ||
| * console.log( `An error occurred in an item with the '${ itemId }' ID.` ); | ||
| * } ); | ||
| * | ||
| * @event itemError | ||
| */ | ||
| /** | ||
| * Fired after an item has been restarted. | ||
| * | ||
| * watchdog.on( 'itemRestart', ( evt, { itemId } ) => { | ||
| * console.log( 'An item with with the '${ itemId }' ID has been restarted.' ); | ||
| * } ); | ||
| * | ||
| * @event itemRestart | ||
| */ | ||
| /** | ||
| * The context watchdog class constructor. | ||
| * | ||
| * ```ts | ||
| * const watchdog = new ContextWatchdog( Context ); | ||
| * | ||
| * await watchdog.create( contextConfiguration ); | ||
| * | ||
| * await watchdog.add( item ); | ||
| * ``` | ||
| * | ||
| * See the {@glink features/watchdog Watchdog feature guide} to learn more how to use this feature. | ||
| * | ||
| * @param Context The {@link module:core/context~Context} class. | ||
| * @param watchdogConfig The watchdog configuration. | ||
| */ | ||
| constructor(Context, watchdogConfig = {}) { | ||
| super(watchdogConfig); | ||
| /** | ||
| * A map of internal watchdogs for added items. | ||
| */ | ||
| this._watchdogs = new Map(); | ||
| /** | ||
| * The current context instance. | ||
| */ | ||
| this._context = null; | ||
| /** | ||
| * Context properties (nodes/references) that are gathered during the initial context creation | ||
| * and are used to distinguish the origin of an error. | ||
| */ | ||
| this._contextProps = new Set(); | ||
| /** | ||
| * An action queue, which is used to handle async functions queuing. | ||
| */ | ||
| this._actionQueues = new ActionQueues(); | ||
| this._watchdogConfig = watchdogConfig; | ||
| // Default creator and destructor. | ||
| this._creator = contextConfig => Context.create(contextConfig); | ||
| this._destructor = context => context.destroy(); | ||
| this._actionQueues.onEmpty(() => { | ||
| if (this.state === 'initializing') { | ||
| this.state = 'ready'; | ||
| this._fire('stateChange'); | ||
| } | ||
| }); | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for the context creation. | ||
| * It expects a function that should return a promise (or `undefined`). | ||
| * | ||
| * ```ts | ||
| * watchdog.setCreator( config => Context.create( config ) ); | ||
| * ``` | ||
| */ | ||
| setCreator(creator) { | ||
| this._creator = creator; | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for the context destruction. | ||
| * Overrides the default destruction function, which destroys only the context instance. | ||
| * It expects a function that should return a promise (or `undefined`). | ||
| * | ||
| * ```ts | ||
| * watchdog.setDestructor( context => { | ||
| * // Do something before the context is destroyed. | ||
| * | ||
| * return context | ||
| * .destroy() | ||
| * .then( () => { | ||
| * // Do something after the context is destroyed. | ||
| * } ); | ||
| * } ); | ||
| * ``` | ||
| */ | ||
| setDestructor(destructor) { | ||
| this._destructor = destructor; | ||
| } | ||
| /** | ||
| * The context instance. Keep in mind that this property might be changed when the context watchdog restarts, | ||
| * so do not keep this instance internally. Always operate on the `ContextWatchdog#context` property. | ||
| */ | ||
| get context() { | ||
| return this._context; | ||
| } | ||
| /** | ||
| * Initializes the context watchdog. Once it is created, the watchdog takes care about | ||
| * recreating the context and the provided items, and starts the error handling mechanism. | ||
| * | ||
| * ```ts | ||
| * await watchdog.create( { | ||
| * plugins: [] | ||
| * } ); | ||
| * ``` | ||
| * | ||
| * @param contextConfig The context configuration. See {@link module:core/context~Context}. | ||
| */ | ||
| create(contextConfig = {}) { | ||
| return this._actionQueues.enqueue(mainQueueId, () => { | ||
| this._contextConfig = contextConfig; | ||
| return this._create(); | ||
| }); | ||
| } | ||
| /** | ||
| * Returns an item instance with the given `itemId`. | ||
| * | ||
| * ```ts | ||
| * const editor1 = watchdog.getItem( 'editor1' ); | ||
| * ``` | ||
| * | ||
| * @param itemId The item ID. | ||
| * @returns The item instance or `undefined` if an item with a given ID has not been found. | ||
| */ | ||
| getItem(itemId) { | ||
| const watchdog = this._getWatchdog(itemId); | ||
| return watchdog._item; | ||
| } | ||
| /** | ||
| * Gets the state of the given item. See {@link #state} for a list of available states. | ||
| * | ||
| * ```ts | ||
| * const editor1State = watchdog.getItemState( 'editor1' ); | ||
| * ``` | ||
| * | ||
| * @param itemId Item ID. | ||
| * @returns The state of the item. | ||
| */ | ||
| getItemState(itemId) { | ||
| const watchdog = this._getWatchdog(itemId); | ||
| return watchdog.state; | ||
| } | ||
| /** | ||
| * Adds items to the watchdog. Once created, instances of these items will be available using the {@link #getItem} method. | ||
| * | ||
| * Items can be passed together as an array of objects: | ||
| * | ||
| * ```ts | ||
| * await watchdog.add( [ { | ||
| * id: 'editor1', | ||
| * type: 'editor', | ||
| * sourceElementOrData: document.querySelector( '#editor' ), | ||
| * config: { | ||
| * plugins: [ Essentials, Paragraph, Bold, Italic ], | ||
| * toolbar: [ 'bold', 'italic', 'alignment' ] | ||
| * }, | ||
| * creator: ( element, config ) => ClassicEditor.create( element, config ) | ||
| * } ] ); | ||
| * ``` | ||
| * | ||
| * Or one by one as objects: | ||
| * | ||
| * ```ts | ||
| * await watchdog.add( { | ||
| * id: 'editor1', | ||
| * type: 'editor', | ||
| * sourceElementOrData: document.querySelector( '#editor' ), | ||
| * config: { | ||
| * plugins: [ Essentials, Paragraph, Bold, Italic ], | ||
| * toolbar: [ 'bold', 'italic', 'alignment' ] | ||
| * }, | ||
| * creator: ( element, config ) => ClassicEditor.create( element, config ) | ||
| * ] ); | ||
| * ``` | ||
| * | ||
| * Then an instance can be retrieved using the {@link #getItem} method: | ||
| * | ||
| * ```ts | ||
| * const editor1 = watchdog.getItem( 'editor1' ); | ||
| * ``` | ||
| * | ||
| * Note that this method can be called multiple times, but for performance reasons it is better | ||
| * to pass all items together. | ||
| * | ||
| * @param itemConfigurationOrItemConfigurations An item configuration object or an array of item configurations. | ||
| */ | ||
| add(itemConfigurationOrItemConfigurations) { | ||
| const itemConfigurations = toArray(itemConfigurationOrItemConfigurations); | ||
| return Promise.all(itemConfigurations.map(item => { | ||
| return this._actionQueues.enqueue(item.id, () => { | ||
| if (this.state === 'destroyed') { | ||
| throw new Error('Cannot add items to destroyed watchdog.'); | ||
| } | ||
| if (!this._context) { | ||
| throw new Error('Context was not created yet. You should call the `ContextWatchdog#create()` method first.'); | ||
| } | ||
| let watchdog; | ||
| if (this._watchdogs.has(item.id)) { | ||
| throw new Error(`Item with the given id is already added: '${item.id}'.`); | ||
| } | ||
| if (item.type === 'editor') { | ||
| watchdog = new EditorWatchdog(null, this._watchdogConfig); | ||
| watchdog.setCreator(item.creator); | ||
| watchdog._setExcludedProperties(this._contextProps); | ||
| if (item.destructor) { | ||
| watchdog.setDestructor(item.destructor); | ||
| } | ||
| this._watchdogs.set(item.id, watchdog); | ||
| // Enqueue the internal watchdog errors within the main queue. | ||
| // And propagate the internal `error` events as `itemError` event. | ||
| watchdog.on('error', (evt, { error, causesRestart }) => { | ||
| this._fire('itemError', { itemId: item.id, error }); | ||
| // Do not enqueue the item restart action if the item will not restart. | ||
| if (!causesRestart) { | ||
| return; | ||
| } | ||
| this._actionQueues.enqueue(item.id, () => new Promise(res => { | ||
| const rethrowRestartEventOnce = () => { | ||
| watchdog.off('restart', rethrowRestartEventOnce); | ||
| this._fire('itemRestart', { itemId: item.id }); | ||
| res(); | ||
| }; | ||
| watchdog.on('restart', rethrowRestartEventOnce); | ||
| })); | ||
| }); | ||
| return watchdog.create(item.sourceElementOrData, item.config, this._context); | ||
| } | ||
| else { | ||
| throw new Error(`Not supported item type: '${item.type}'.`); | ||
| } | ||
| }); | ||
| })); | ||
| } | ||
| /** | ||
| * Removes and destroys item(s) with given ID(s). | ||
| * | ||
| * ```ts | ||
| * await watchdog.remove( 'editor1' ); | ||
| * ``` | ||
| * | ||
| * Or | ||
| * | ||
| * ```ts | ||
| * await watchdog.remove( [ 'editor1', 'editor2' ] ); | ||
| * ``` | ||
| * | ||
| * @param itemIdOrItemIds Item ID or an array of item IDs. | ||
| */ | ||
| remove(itemIdOrItemIds) { | ||
| const itemIds = toArray(itemIdOrItemIds); | ||
| return Promise.all(itemIds.map(itemId => { | ||
| return this._actionQueues.enqueue(itemId, () => { | ||
| const watchdog = this._getWatchdog(itemId); | ||
| this._watchdogs.delete(itemId); | ||
| return watchdog.destroy(); | ||
| }); | ||
| })); | ||
| } | ||
| /** | ||
| * Destroys the context watchdog and all added items. | ||
| * Once the context watchdog is destroyed, new items cannot be added. | ||
| * | ||
| * ```ts | ||
| * await watchdog.destroy(); | ||
| * ``` | ||
| */ | ||
| destroy() { | ||
| return this._actionQueues.enqueue(mainQueueId, () => { | ||
| this.state = 'destroyed'; | ||
| this._fire('stateChange'); | ||
| super.destroy(); | ||
| return this._destroy(); | ||
| }); | ||
| } | ||
| /** | ||
| * Restarts the context watchdog. | ||
| */ | ||
| _restart() { | ||
| return this._actionQueues.enqueue(mainQueueId, () => { | ||
| this.state = 'initializing'; | ||
| this._fire('stateChange'); | ||
| return this._destroy() | ||
| .catch(err => { | ||
| console.error('An error happened during destroying the context or items.', err); | ||
| }) | ||
| .then(() => this._create()) | ||
| .then(() => this._fire('restart')); | ||
| }); | ||
| } | ||
| /** | ||
| * Initializes the context watchdog. | ||
| */ | ||
| _create() { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| this._startErrorHandling(); | ||
| return this._creator(this._contextConfig); | ||
| }) | ||
| .then(context => { | ||
| this._context = context; | ||
| this._contextProps = getSubNodes(this._context); | ||
| return Promise.all(Array.from(this._watchdogs.values()) | ||
| .map(watchdog => { | ||
| watchdog._setExcludedProperties(this._contextProps); | ||
| return watchdog.create(undefined, undefined, this._context); | ||
| })); | ||
| }); | ||
| } | ||
| /** | ||
| * Destroys the context instance and all added items. | ||
| */ | ||
| _destroy() { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| this._stopErrorHandling(); | ||
| const context = this._context; | ||
| this._context = null; | ||
| this._contextProps = new Set(); | ||
| return Promise.all(Array.from(this._watchdogs.values()) | ||
| .map(watchdog => watchdog.destroy())) | ||
| // Context destructor destroys each editor. | ||
| .then(() => this._destructor(context)); | ||
| }); | ||
| } | ||
| /** | ||
| * Returns the watchdog for a given item ID. | ||
| * | ||
| * @param itemId Item ID. | ||
| */ | ||
| _getWatchdog(itemId) { | ||
| const watchdog = this._watchdogs.get(itemId); | ||
| if (!watchdog) { | ||
| throw new Error(`Item with the given id was not registered: ${itemId}.`); | ||
| } | ||
| return watchdog; | ||
| } | ||
| /** | ||
| * Checks whether an error comes from the context instance and not from the item instances. | ||
| * | ||
| * @internal | ||
| */ | ||
| _isErrorComingFromThisItem(error) { | ||
| for (const watchdog of this._watchdogs.values()) { | ||
| if (watchdog._isErrorComingFromThisItem(error)) { | ||
| return false; | ||
| } | ||
| } | ||
| return areConnectedThroughProperties(this._context, error.context); | ||
| } | ||
| } | ||
| // Manager of action queues that allows queuing async functions. | ||
| /** | ||
| * Manager of action queues that allows queuing async functions. | ||
| */ | ||
| class ActionQueues { | ||
| constructor() { | ||
| // @type {Array.<Function>} | ||
| this._onEmptyCallbacks = []; | ||
| // @type {Map.<Promise>} | ||
| this._queues = new Map(); | ||
| this._actions = new WeakMap(); | ||
| this._lastActionId = 0; | ||
| this._activeActions = 0; | ||
| } | ||
| // Used to register callbacks that will be run when the queue becomes empty. | ||
| // | ||
| // @param {Function} onEmptyCallback A callback that will be run whenever the queue becomes empty. | ||
| onEmpty( onEmptyCallback ) { | ||
| this._onEmptyCallbacks.push( onEmptyCallback ); | ||
| } | ||
| // It adds asynchronous actions (functions) to the proper queue and runs them one by one. | ||
| // | ||
| // @param {Symbol|String|Number} queueId The action queue ID. | ||
| // @param {Function} action A function that should be enqueued. | ||
| // @returns {Promise} | ||
| enqueue( queueId, action ) { | ||
| const isMainAction = queueId === mainQueueId; | ||
| this._activeActions++; | ||
| if ( !this._queues.get( queueId ) ) { | ||
| this._queues.set( queueId, Promise.resolve() ); | ||
| } | ||
| // List all sources of actions that the current action needs to await for. | ||
| // For the main action wait for all other actions. | ||
| // For the item action wait only for the item queue and the main queue. | ||
| const awaitedActions = isMainAction ? | ||
| Promise.all( this._queues.values() ) : | ||
| Promise.all( [ this._queues.get( mainQueueId ), this._queues.get( queueId ) ] ); | ||
| const queueWithAction = awaitedActions.then( action ); | ||
| // Catch all errors in the main queue to stack promises even if an error occurred in the past. | ||
| const nonErrorQueue = queueWithAction.catch( () => {} ); | ||
| this._queues.set( queueId, nonErrorQueue ); | ||
| return queueWithAction.finally( () => { | ||
| this._activeActions--; | ||
| if ( this._queues.get( queueId ) === nonErrorQueue && this._activeActions === 0 ) { | ||
| this._onEmptyCallbacks.forEach( cb => cb() ); | ||
| } | ||
| } ); | ||
| } | ||
| constructor() { | ||
| this._onEmptyCallbacks = []; | ||
| this._queues = new Map(); | ||
| this._activeActions = 0; | ||
| } | ||
| /** | ||
| * Used to register callbacks that will be run when the queue becomes empty. | ||
| * | ||
| * @param onEmptyCallback A callback that will be run whenever the queue becomes empty. | ||
| */ | ||
| onEmpty(onEmptyCallback) { | ||
| this._onEmptyCallbacks.push(onEmptyCallback); | ||
| } | ||
| /** | ||
| * It adds asynchronous actions (functions) to the proper queue and runs them one by one. | ||
| * | ||
| * @param queueId The action queue ID. | ||
| * @param action A function that should be enqueued. | ||
| */ | ||
| enqueue(queueId, action) { | ||
| const isMainAction = queueId === mainQueueId; | ||
| this._activeActions++; | ||
| if (!this._queues.get(queueId)) { | ||
| this._queues.set(queueId, Promise.resolve()); | ||
| } | ||
| // List all sources of actions that the current action needs to await for. | ||
| // For the main action wait for all other actions. | ||
| // For the item action wait only for the item queue and the main queue. | ||
| const awaitedActions = isMainAction ? | ||
| Promise.all(this._queues.values()) : | ||
| Promise.all([this._queues.get(mainQueueId), this._queues.get(queueId)]); | ||
| const queueWithAction = awaitedActions.then(action); | ||
| // Catch all errors in the main queue to stack promises even if an error occurred in the past. | ||
| const nonErrorQueue = queueWithAction.catch(() => { }); | ||
| this._queues.set(queueId, nonErrorQueue); | ||
| return queueWithAction.finally(() => { | ||
| this._activeActions--; | ||
| if (this._queues.get(queueId) === nonErrorQueue && this._activeActions === 0) { | ||
| this._onEmptyCallbacks.forEach(cb => cb()); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
| // Transforms any value to an array. If the provided value is already an array, it is returned unchanged. | ||
| // | ||
| // @param {*} elementOrArray The value to transform to an array. | ||
| // @returns {Array} An array created from data. | ||
| function toArray( elementOrArray ) { | ||
| return Array.isArray( elementOrArray ) ? elementOrArray : [ elementOrArray ]; | ||
| } | ||
| /** | ||
| * The watchdog item configuration interface. | ||
| * Transforms any value to an array. If the provided value is already an array, it is returned unchanged. | ||
| * | ||
| * @typedef {Object} module:watchdog/contextwatchdog~WatchdogItemConfiguration | ||
| * | ||
| * @property {String} id A unique item identificator. | ||
| * | ||
| * @property {'editor'} type The type of the item to create. At the moment, only `'editor'` is supported. | ||
| * | ||
| * @property {Function} creator A function that initializes the item (the editor). The function takes editor initialization arguments | ||
| * and should return a promise. For example: `( el, config ) => ClassicEditor.create( el, config )`. | ||
| * | ||
| * @property {Function} [destructor] A function that destroys the item instance (the editor). The function | ||
| * takes an item and should return a promise. For example: `editor => editor.destroy()` | ||
| * | ||
| * @property {String|HTMLElement} sourceElementOrData The source element or data that will be passed | ||
| * as the first argument to the `Editor.create()` method. | ||
| * | ||
| * @property {Object} config An editor configuration. | ||
| * @param elementOrArray The value to transform to an array. | ||
| * @returns An array created from data. | ||
| */ | ||
| function toArray(elementOrArray) { | ||
| return Array.isArray(elementOrArray) ? elementOrArray : [elementOrArray]; | ||
| } |
@@ -5,13 +5,5 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog/editorwatchdog | ||
| */ | ||
| /* globals console */ | ||
| import { throttle, cloneDeepWith, isElement } from 'lodash-es'; | ||
| import areConnectedThroughProperties from './utils/areconnectedthroughproperties'; | ||
| import Watchdog from './watchdog'; | ||
| import { throttle, cloneDeepWith, isElement } from 'lodash-es'; | ||
| /** | ||
@@ -22,308 +14,206 @@ * A watchdog for CKEditor 5 editors. | ||
| * how to use it. | ||
| * | ||
| * @extends {module:watchdog/watchdog~Watchdog} | ||
| */ | ||
| export default class EditorWatchdog extends Watchdog { | ||
| /** | ||
| * @param {*} Editor The editor class. | ||
| * @param {module:watchdog/watchdog~WatchdogConfig} [watchdogConfig] The watchdog plugin configuration. | ||
| */ | ||
| constructor( Editor, watchdogConfig = {} ) { | ||
| super( watchdogConfig ); | ||
| /** | ||
| * The current editor instance. | ||
| * | ||
| * @private | ||
| * @type {module:core/editor/editor~Editor} | ||
| */ | ||
| this._editor = null; | ||
| /** | ||
| * Throttled save method. The `save()` method is called the specified `saveInterval` after `throttledSave()` is called, | ||
| * unless a new action happens in the meantime. | ||
| * | ||
| * @private | ||
| * @type {Function} | ||
| */ | ||
| this._throttledSave = throttle( | ||
| this._save.bind( this ), | ||
| typeof watchdogConfig.saveInterval === 'number' ? watchdogConfig.saveInterval : 5000 | ||
| ); | ||
| /** | ||
| * The latest saved editor data represented as a root name -> root data object. | ||
| * | ||
| * @private | ||
| * @member {Object.<String,String>} #_data | ||
| */ | ||
| /** | ||
| * The last document version. | ||
| * | ||
| * @private | ||
| * @member {Number} #_lastDocumentVersion | ||
| */ | ||
| /** | ||
| * The editor source element or data. | ||
| * | ||
| * @private | ||
| * @member {HTMLElement|String|Object.<String|String>} #_elementOrData | ||
| */ | ||
| /** | ||
| * The editor configuration. | ||
| * | ||
| * @private | ||
| * @member {Object|undefined} #_config | ||
| */ | ||
| // Set default creator and destructor functions: | ||
| this._creator = ( ( elementOrData, config ) => Editor.create( elementOrData, config ) ); | ||
| this._destructor = editor => editor.destroy(); | ||
| } | ||
| /** | ||
| * The current editor instance. | ||
| * | ||
| * @readonly | ||
| * @type {module:core/editor/editor~Editor} | ||
| */ | ||
| get editor() { | ||
| return this._editor; | ||
| } | ||
| /** | ||
| * @inheritDoc | ||
| */ | ||
| get _item() { | ||
| return this._editor; | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for the editor creation. | ||
| * It expects a function that should return a promise. | ||
| * | ||
| * watchdog.setCreator( ( element, config ) => ClassicEditor.create( element, config ) ); | ||
| * | ||
| * @method #setCreator | ||
| * @param {Function} creator | ||
| */ | ||
| /** | ||
| * Sets the function that is responsible for the editor destruction. | ||
| * Overrides the default destruction function, which destroys only the editor instance. | ||
| * It expects a function that should return a promise or `undefined`. | ||
| * | ||
| * watchdog.setDestructor( editor => { | ||
| * // Do something before the editor is destroyed. | ||
| * | ||
| * return editor | ||
| * .destroy() | ||
| * .then( () => { | ||
| * // Do something after the editor is destroyed. | ||
| * } ); | ||
| * } ); | ||
| * | ||
| * @method #setDestructor | ||
| * @param {Function} destructor | ||
| */ | ||
| /** | ||
| * Restarts the editor instance. This method is called whenever an editor error occurs. It fires the `restart` event and changes | ||
| * the state to `initializing`. | ||
| * | ||
| * @protected | ||
| * @fires restart | ||
| * @returns {Promise} | ||
| */ | ||
| _restart() { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| this.state = 'initializing'; | ||
| this._fire( 'stateChange' ); | ||
| return this._destroy(); | ||
| } ) | ||
| .catch( err => { | ||
| console.error( 'An error happened during the editor destroying.', err ); | ||
| } ) | ||
| .then( () => { | ||
| if ( typeof this._elementOrData === 'string' ) { | ||
| return this.create( this._data, this._config, this._config.context ); | ||
| } else { | ||
| const updatedConfig = Object.assign( {}, this._config, { | ||
| initialData: this._data | ||
| } ); | ||
| return this.create( this._elementOrData, updatedConfig, updatedConfig.context ); | ||
| } | ||
| } ) | ||
| .then( () => { | ||
| this._fire( 'restart' ); | ||
| } ); | ||
| } | ||
| /** | ||
| * Creates the editor instance and keeps it running, using the defined creator and destructor. | ||
| * | ||
| * @param {HTMLElement|String|Object.<String|String>} [elementOrData] The editor source element or the editor data. | ||
| * @param {module:core/editor/editorconfig~EditorConfig} [config] The editor configuration. | ||
| * @param {Object} [context] A context for the editor. | ||
| * | ||
| * @returns {Promise} | ||
| */ | ||
| create( elementOrData = this._elementOrData, config = this._config, context ) { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| super._startErrorHandling(); | ||
| this._elementOrData = elementOrData; | ||
| // Clone configuration because it might be shared within multiple watchdog instances. Otherwise, | ||
| // when an error occurs in one of these editors, the watchdog will restart all of them. | ||
| this._config = this._cloneEditorConfiguration( config ) || {}; | ||
| this._config.context = context; | ||
| return this._creator( elementOrData, this._config ); | ||
| } ) | ||
| .then( editor => { | ||
| this._editor = editor; | ||
| editor.model.document.on( 'change:data', this._throttledSave ); | ||
| this._lastDocumentVersion = editor.model.document.version; | ||
| this._data = this._getData(); | ||
| this.state = 'ready'; | ||
| this._fire( 'stateChange' ); | ||
| } ); | ||
| } | ||
| /** | ||
| * Destroys the watchdog and the current editor instance. It fires the callback | ||
| * registered in {@link #setDestructor `setDestructor()`} and uses it to destroy the editor instance. | ||
| * It also sets the state to `destroyed`. | ||
| * | ||
| * @returns {Promise} | ||
| */ | ||
| destroy() { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| this.state = 'destroyed'; | ||
| this._fire( 'stateChange' ); | ||
| super.destroy(); | ||
| return this._destroy(); | ||
| } ); | ||
| } | ||
| /** | ||
| * @private | ||
| * @returns {Promise} | ||
| */ | ||
| _destroy() { | ||
| return Promise.resolve() | ||
| .then( () => { | ||
| this._stopErrorHandling(); | ||
| // Save data if there is a remaining editor data change. | ||
| this._throttledSave.flush(); | ||
| const editor = this._editor; | ||
| this._editor = null; | ||
| // Remove the `change:data` listener before destroying the editor. | ||
| // Incorrectly written plugins may trigger firing `change:data` events during the editor destruction phase | ||
| // causing the watchdog to call `editor.getData()` when some parts of editor are already destroyed. | ||
| editor.model.document.off( 'change:data', this._throttledSave ); | ||
| return this._destructor( editor ); | ||
| } ); | ||
| } | ||
| /** | ||
| * Saves the editor data, so it can be restored after the crash even if the data cannot be fetched at | ||
| * the moment of the crash. | ||
| * | ||
| * @private | ||
| */ | ||
| _save() { | ||
| const version = this._editor.model.document.version; | ||
| try { | ||
| this._data = this._getData(); | ||
| this._lastDocumentVersion = version; | ||
| } catch ( err ) { | ||
| console.error( | ||
| err, | ||
| 'An error happened during restoring editor data. ' + | ||
| 'Editor will be restored from the previously saved data.' | ||
| ); | ||
| } | ||
| } | ||
| /** | ||
| * @protected | ||
| * @param {Set} props | ||
| */ | ||
| _setExcludedProperties( props ) { | ||
| this._excludedProps = props; | ||
| } | ||
| /** | ||
| * Returns the editor data. | ||
| * | ||
| * @private | ||
| * @returns {Object<String,String>} | ||
| */ | ||
| _getData() { | ||
| const data = {}; | ||
| for ( const rootName of this._editor.model.document.getRootNames() ) { | ||
| data[ rootName ] = this._editor.data.get( { rootName } ); | ||
| } | ||
| return data; | ||
| } | ||
| /** | ||
| * Traverses the error context and the current editor to find out whether these structures are connected | ||
| * to each other via properties. | ||
| * | ||
| * @protected | ||
| * @param {module:utils/ckeditorerror~CKEditorError} error | ||
| */ | ||
| _isErrorComingFromThisItem( error ) { | ||
| return areConnectedThroughProperties( this._editor, error.context, this._excludedProps ); | ||
| } | ||
| /** | ||
| * Clones the editor configuration. | ||
| * | ||
| * @private | ||
| * @param {Object} config | ||
| */ | ||
| _cloneEditorConfiguration( config ) { | ||
| return cloneDeepWith( config, ( value, key ) => { | ||
| // Leave DOM references. | ||
| if ( isElement( value ) ) { | ||
| return value; | ||
| } | ||
| if ( key === 'context' ) { | ||
| return value; | ||
| } | ||
| } ); | ||
| } | ||
| /** | ||
| * Fired after the watchdog restarts the error in case of a crash. | ||
| * | ||
| * @event restart | ||
| */ | ||
| /** | ||
| * @param Editor The editor class. | ||
| * @param watchdogConfig The watchdog plugin configuration. | ||
| */ | ||
| constructor(Editor, watchdogConfig = {}) { | ||
| super(watchdogConfig); | ||
| /** | ||
| * The current editor instance. | ||
| */ | ||
| this._editor = null; | ||
| // this._editorClass = Editor; | ||
| this._throttledSave = throttle(this._save.bind(this), typeof watchdogConfig.saveInterval === 'number' ? watchdogConfig.saveInterval : 5000); | ||
| // Set default creator and destructor functions: | ||
| if (Editor) { | ||
| this._creator = ((elementOrData, config) => Editor.create(elementOrData, config)); | ||
| } | ||
| this._destructor = editor => editor.destroy(); | ||
| } | ||
| /** | ||
| * The current editor instance. | ||
| */ | ||
| get editor() { | ||
| return this._editor; | ||
| } | ||
| /** | ||
| * @internal | ||
| */ | ||
| get _item() { | ||
| return this._editor; | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for the editor creation. | ||
| * It expects a function that should return a promise. | ||
| * | ||
| * ```ts | ||
| * watchdog.setCreator( ( element, config ) => ClassicEditor.create( element, config ) ); | ||
| * ``` | ||
| */ | ||
| setCreator(creator) { | ||
| this._creator = creator; | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for the editor destruction. | ||
| * Overrides the default destruction function, which destroys only the editor instance. | ||
| * It expects a function that should return a promise or `undefined`. | ||
| * | ||
| * ```ts | ||
| * watchdog.setDestructor( editor => { | ||
| * // Do something before the editor is destroyed. | ||
| * | ||
| * return editor | ||
| * .destroy() | ||
| * .then( () => { | ||
| * // Do something after the editor is destroyed. | ||
| * } ); | ||
| * } ); | ||
| * ``` | ||
| */ | ||
| setDestructor(destructor) { | ||
| this._destructor = destructor; | ||
| } | ||
| /** | ||
| * Restarts the editor instance. This method is called whenever an editor error occurs. It fires the `restart` event and changes | ||
| * the state to `initializing`. | ||
| * | ||
| * @fires restart | ||
| */ | ||
| _restart() { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| this.state = 'initializing'; | ||
| this._fire('stateChange'); | ||
| return this._destroy(); | ||
| }) | ||
| .catch(err => { | ||
| console.error('An error happened during the editor destroying.', err); | ||
| }) | ||
| .then(() => { | ||
| if (typeof this._elementOrData === 'string') { | ||
| return this.create(this._data, this._config, this._config.context); | ||
| } | ||
| else { | ||
| const updatedConfig = Object.assign({}, this._config, { | ||
| initialData: this._data | ||
| }); | ||
| return this.create(this._elementOrData, updatedConfig, updatedConfig.context); | ||
| } | ||
| }) | ||
| .then(() => { | ||
| this._fire('restart'); | ||
| }); | ||
| } | ||
| /** | ||
| * Creates the editor instance and keeps it running, using the defined creator and destructor. | ||
| * | ||
| * @param elementOrData The editor source element or the editor data. | ||
| * @param config The editor configuration. | ||
| * @param context A context for the editor. | ||
| */ | ||
| create(elementOrData = this._elementOrData, config = this._config, context) { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| super._startErrorHandling(); | ||
| this._elementOrData = elementOrData; | ||
| // Clone configuration because it might be shared within multiple watchdog instances. Otherwise, | ||
| // when an error occurs in one of these editors, the watchdog will restart all of them. | ||
| this._config = this._cloneEditorConfiguration(config) || {}; | ||
| this._config.context = context; | ||
| return this._creator(elementOrData, this._config); | ||
| }) | ||
| .then(editor => { | ||
| this._editor = editor; | ||
| editor.model.document.on('change:data', this._throttledSave); | ||
| this._lastDocumentVersion = editor.model.document.version; | ||
| this._data = this._getData(); | ||
| this.state = 'ready'; | ||
| this._fire('stateChange'); | ||
| }); | ||
| } | ||
| /** | ||
| * Destroys the watchdog and the current editor instance. It fires the callback | ||
| * registered in {@link #setDestructor `setDestructor()`} and uses it to destroy the editor instance. | ||
| * It also sets the state to `destroyed`. | ||
| */ | ||
| destroy() { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| this.state = 'destroyed'; | ||
| this._fire('stateChange'); | ||
| super.destroy(); | ||
| return this._destroy(); | ||
| }); | ||
| } | ||
| _destroy() { | ||
| return Promise.resolve() | ||
| .then(() => { | ||
| this._stopErrorHandling(); | ||
| // Save data if there is a remaining editor data change. | ||
| this._throttledSave.flush(); | ||
| const editor = this._editor; | ||
| this._editor = null; | ||
| // Remove the `change:data` listener before destroying the editor. | ||
| // Incorrectly written plugins may trigger firing `change:data` events during the editor destruction phase | ||
| // causing the watchdog to call `editor.getData()` when some parts of editor are already destroyed. | ||
| editor.model.document.off('change:data', this._throttledSave); | ||
| return this._destructor(editor); | ||
| }); | ||
| } | ||
| /** | ||
| * Saves the editor data, so it can be restored after the crash even if the data cannot be fetched at | ||
| * the moment of the crash. | ||
| */ | ||
| _save() { | ||
| const version = this._editor.model.document.version; | ||
| try { | ||
| this._data = this._getData(); | ||
| this._lastDocumentVersion = version; | ||
| } | ||
| catch (err) { | ||
| console.error(err, 'An error happened during restoring editor data. ' + | ||
| 'Editor will be restored from the previously saved data.'); | ||
| } | ||
| } | ||
| /** | ||
| * @internal | ||
| */ | ||
| _setExcludedProperties(props) { | ||
| this._excludedProps = props; | ||
| } | ||
| /** | ||
| * Returns the editor data. | ||
| */ | ||
| _getData() { | ||
| const data = {}; | ||
| for (const rootName of this._editor.model.document.getRootNames()) { | ||
| data[rootName] = this._editor.data.get({ rootName }); | ||
| } | ||
| return data; | ||
| } | ||
| /** | ||
| * Traverses the error context and the current editor to find out whether these structures are connected | ||
| * to each other via properties. | ||
| * | ||
| * @internal | ||
| */ | ||
| _isErrorComingFromThisItem(error) { | ||
| return areConnectedThroughProperties(this._editor, error.context, this._excludedProps); | ||
| } | ||
| /** | ||
| * Clones the editor configuration. | ||
| */ | ||
| _cloneEditorConfiguration(config) { | ||
| return cloneDeepWith(config, (value, key) => { | ||
| // Leave DOM references. | ||
| if (isElement(value)) { | ||
| return value; | ||
| } | ||
| if (key === 'context') { | ||
| return value; | ||
| } | ||
| }); | ||
| } | ||
| } |
@@ -5,9 +5,7 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog | ||
| */ | ||
| export { default as ContextWatchdog } from './contextwatchdog'; | ||
| export { default as EditorWatchdog } from './editorwatchdog'; | ||
| export { default as Watchdog } from './watchdog'; |
@@ -5,78 +5,55 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog/utils/areconnectedthroughproperties | ||
| */ | ||
| /* globals console */ | ||
| import getSubNodes from './getsubnodes'; | ||
| /** | ||
| * Traverses both structures to find out whether there is a reference that is shared between both structures. | ||
| * | ||
| * @param {Object|Array} target1 | ||
| * @param {Object|Array} target2 | ||
| * @returns {Boolean} | ||
| */ | ||
| export default function areConnectedThroughProperties( target1, target2, excludedNodes = new Set() ) { | ||
| if ( target1 === target2 && isObject( target1 ) ) { | ||
| return true; | ||
| } | ||
| // @if CK_DEBUG_WATCHDOG // return checkConnectionBetweenProps( target1, target2, excludedNodes ); | ||
| const subNodes1 = getSubNodes( target1, excludedNodes ); | ||
| const subNodes2 = getSubNodes( target2, excludedNodes ); | ||
| for ( const node of subNodes1 ) { | ||
| if ( subNodes2.has( node ) ) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| export default function areConnectedThroughProperties(target1, target2, excludedNodes = new Set()) { | ||
| if (target1 === target2 && isObject(target1)) { | ||
| return true; | ||
| } | ||
| // @if CK_DEBUG_WATCHDOG // return checkConnectionBetweenProps( target1, target2, excludedNodes ); | ||
| const subNodes1 = getSubNodes(target1, excludedNodes); | ||
| const subNodes2 = getSubNodes(target2, excludedNodes); | ||
| for (const node of subNodes1) { | ||
| if (subNodes2.has(node)) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| /* istanbul ignore next */ | ||
| // eslint-disable-next-line | ||
| function checkConnectionBetweenProps( target1, target2, excludedNodes ) { | ||
| const { subNodes: subNodes1, prevNodeMap: prevNodeMap1 } = getSubNodes( target1, excludedNodes.subNodes ); | ||
| const { subNodes: subNodes2, prevNodeMap: prevNodeMap2 } = getSubNodes( target2, excludedNodes.subNodes ); | ||
| for ( const sharedNode of subNodes1 ) { | ||
| if ( subNodes2.has( sharedNode ) ) { | ||
| const connection = []; | ||
| connection.push( sharedNode ); | ||
| let node = prevNodeMap1.get( sharedNode ); | ||
| while ( node && node !== target1 ) { | ||
| connection.push( node ); | ||
| node = prevNodeMap1.get( node ); | ||
| } | ||
| node = prevNodeMap2.get( sharedNode ); | ||
| while ( node && node !== target2 ) { | ||
| connection.unshift( node ); | ||
| node = prevNodeMap2.get( node ); | ||
| } | ||
| console.log( '--------' ); | ||
| console.log( { target1 } ); | ||
| console.log( { sharedNode } ); | ||
| console.log( { target2 } ); | ||
| console.log( { connection } ); | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| function checkConnectionBetweenProps(target1, target2, excludedNodes) { | ||
| const { subNodes: subNodes1, prevNodeMap: prevNodeMap1 } = getSubNodes(target1, excludedNodes.subNodes); | ||
| const { subNodes: subNodes2, prevNodeMap: prevNodeMap2 } = getSubNodes(target2, excludedNodes.subNodes); | ||
| for (const sharedNode of subNodes1) { | ||
| if (subNodes2.has(sharedNode)) { | ||
| const connection = []; | ||
| connection.push(sharedNode); | ||
| let node = prevNodeMap1.get(sharedNode); | ||
| while (node && node !== target1) { | ||
| connection.push(node); | ||
| node = prevNodeMap1.get(node); | ||
| } | ||
| node = prevNodeMap2.get(sharedNode); | ||
| while (node && node !== target2) { | ||
| connection.unshift(node); | ||
| node = prevNodeMap2.get(node); | ||
| } | ||
| console.log('--------'); | ||
| console.log({ target1 }); | ||
| console.log({ sharedNode }); | ||
| console.log({ target2 }); | ||
| console.log({ connection }); | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| function isObject( structure ) { | ||
| return typeof structure === 'object' && structure !== null; | ||
| function isObject(structure) { | ||
| return typeof structure === 'object' && structure !== null; | ||
| } |
@@ -5,94 +5,75 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog/utils/getsubnodes | ||
| */ | ||
| /* globals EventTarget, Event */ | ||
| export default function getSubNodes( head, excludedProperties = new Set() ) { | ||
| const nodes = [ head ]; | ||
| // @if CK_DEBUG_WATCHDOG // const prevNodeMap = new Map(); | ||
| // Nodes are stored to prevent infinite looping. | ||
| const subNodes = new Set(); | ||
| let nodeIndex = 0; | ||
| while ( nodes.length > nodeIndex ) { | ||
| // Incrementing the iterator is much faster than changing size of the array with Array.prototype.shift(). | ||
| const node = nodes[ nodeIndex++ ]; | ||
| if ( subNodes.has( node ) || shouldNodeBeSkipped( node ) || excludedProperties.has( node ) ) { | ||
| continue; | ||
| } | ||
| subNodes.add( node ); | ||
| // Handle arrays, maps, sets, custom collections that implements `[ Symbol.iterator ]()`, etc. | ||
| if ( node[ Symbol.iterator ] ) { | ||
| // The custom editor iterators might cause some problems if the editor is crashed. | ||
| try { | ||
| for ( const n of node ) { | ||
| nodes.push( n ); | ||
| // @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( n ) ) { | ||
| // @if CK_DEBUG_WATCHDOG // prevNodeMap.set( n, node ); | ||
| // @if CK_DEBUG_WATCHDOG // } | ||
| } | ||
| } catch ( err ) { | ||
| // Do not log errors for broken structures | ||
| // since we are in the error handling process already. | ||
| // eslint-disable-line no-empty | ||
| } | ||
| } else { | ||
| for ( const key in node ) { | ||
| // We share a reference via the protobuf library within the editors, | ||
| // hence the shared value should be skipped. Although, it's not a perfect | ||
| // solution since new places like that might occur in the future. | ||
| if ( key === 'defaultValue' ) { | ||
| continue; | ||
| } | ||
| nodes.push( node[ key ] ); | ||
| // @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( node[ key ] ) ) { | ||
| // @if CK_DEBUG_WATCHDOG // prevNodeMap.set( node[ key ], node ); | ||
| // @if CK_DEBUG_WATCHDOG // } | ||
| } | ||
| } | ||
| } | ||
| // @if CK_DEBUG_WATCHDOG // return { subNodes, prevNodeMap }; | ||
| return subNodes; | ||
| export default function getSubNodes(head, excludedProperties = new Set()) { | ||
| const nodes = [head]; | ||
| // @if CK_DEBUG_WATCHDOG // const prevNodeMap = new Map(); | ||
| // Nodes are stored to prevent infinite looping. | ||
| const subNodes = new Set(); | ||
| let nodeIndex = 0; | ||
| while (nodes.length > nodeIndex) { | ||
| // Incrementing the iterator is much faster than changing size of the array with Array.prototype.shift(). | ||
| const node = nodes[nodeIndex++]; | ||
| if (subNodes.has(node) || !shouldNodeBeIncluded(node) || excludedProperties.has(node)) { | ||
| continue; | ||
| } | ||
| subNodes.add(node); | ||
| // Handle arrays, maps, sets, custom collections that implements `[ Symbol.iterator ]()`, etc. | ||
| if (Symbol.iterator in node) { | ||
| // The custom editor iterators might cause some problems if the editor is crashed. | ||
| try { | ||
| for (const n of node) { | ||
| nodes.push(n); | ||
| // @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( n ) ) { | ||
| // @if CK_DEBUG_WATCHDOG // prevNodeMap.set( n, node ); | ||
| // @if CK_DEBUG_WATCHDOG // } | ||
| } | ||
| } | ||
| catch (err) { | ||
| // Do not log errors for broken structures | ||
| // since we are in the error handling process already. | ||
| // eslint-disable-line no-empty | ||
| } | ||
| } | ||
| else { | ||
| for (const key in node) { | ||
| // We share a reference via the protobuf library within the editors, | ||
| // hence the shared value should be skipped. Although, it's not a perfect | ||
| // solution since new places like that might occur in the future. | ||
| if (key === 'defaultValue') { | ||
| continue; | ||
| } | ||
| nodes.push(node[key]); | ||
| // @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( node[ key ] ) ) { | ||
| // @if CK_DEBUG_WATCHDOG // prevNodeMap.set( node[ key ], node ); | ||
| // @if CK_DEBUG_WATCHDOG // } | ||
| } | ||
| } | ||
| } | ||
| // @if CK_DEBUG_WATCHDOG // return { subNodes, prevNodeMap } as any; | ||
| return subNodes; | ||
| } | ||
| function shouldNodeBeSkipped( node ) { | ||
| const type = Object.prototype.toString.call( node ); | ||
| const typeOfNode = typeof node; | ||
| return ( | ||
| typeOfNode === 'number' || | ||
| typeOfNode === 'boolean' || | ||
| typeOfNode === 'string' || | ||
| typeOfNode === 'symbol' || | ||
| typeOfNode === 'function' || | ||
| type === '[object Date]' || | ||
| type === '[object RegExp]' || | ||
| type === '[object Module]' || | ||
| node === undefined || | ||
| node === null || | ||
| // This flag is meant to exclude singletons shared across editor instances. So when an error is thrown in one editor, | ||
| // the other editors connected through the reference to the same singleton are not restarted. This is a temporary workaround | ||
| // until a better solution is found. | ||
| // More in https://github.com/ckeditor/ckeditor5/issues/12292. | ||
| node._watchdogExcluded === true || | ||
| // Skip native DOM objects, e.g. Window, nodes, events, etc. | ||
| node instanceof EventTarget || | ||
| node instanceof Event | ||
| ); | ||
| function shouldNodeBeIncluded(node) { | ||
| const type = Object.prototype.toString.call(node); | ||
| const typeOfNode = typeof node; | ||
| return !(typeOfNode === 'number' || | ||
| typeOfNode === 'boolean' || | ||
| typeOfNode === 'string' || | ||
| typeOfNode === 'symbol' || | ||
| typeOfNode === 'function' || | ||
| type === '[object Date]' || | ||
| type === '[object RegExp]' || | ||
| type === '[object Module]' || | ||
| node === undefined || | ||
| node === null || | ||
| // This flag is meant to exclude singletons shared across editor instances. So when an error is thrown in one editor, | ||
| // the other editors connected through the reference to the same singleton are not restarted. This is a temporary workaround | ||
| // until a better solution is found. | ||
| // More in https://github.com/ckeditor/ckeditor5/issues/12292. | ||
| node._watchdogExcluded || | ||
| // Skip native DOM objects, e.g. Window, nodes, events, etc. | ||
| node instanceof EventTarget || | ||
| node instanceof Event); | ||
| } |
@@ -5,10 +5,3 @@ /** | ||
| */ | ||
| /** | ||
| * @module watchdog/watchdog | ||
| */ | ||
| /* globals window */ | ||
| /** | ||
| * An abstract watchdog class that handles most of the error handling process and the state of the underlying component. | ||
@@ -18,344 +11,177 @@ * | ||
| * | ||
| * @private | ||
| * @abstract | ||
| * @internal | ||
| */ | ||
| export default class Watchdog { | ||
| /** | ||
| * @param {module:watchdog/watchdog~WatchdogConfig} config The watchdog plugin configuration. | ||
| */ | ||
| constructor( config ) { | ||
| /** | ||
| * An array of crashes saved as an object with the following properties: | ||
| * | ||
| * * `message`: `String`, | ||
| * * `stack`: `String`, | ||
| * * `date`: `Number`, | ||
| * * `filename`: `String | undefined`, | ||
| * * `lineno`: `Number | undefined`, | ||
| * * `colno`: `Number | undefined`, | ||
| * | ||
| * @public | ||
| * @readonly | ||
| * @type {Array.<Object>} | ||
| */ | ||
| this.crashes = []; | ||
| /** | ||
| * Specifies the state of the item watched by the watchdog. The state can be one of the following values: | ||
| * | ||
| * * `initializing` – Before the first initialization, and after crashes, before the item is ready. | ||
| * * `ready` – A state when the user can interact with the item. | ||
| * * `crashed` – A state when an error occurs. It quickly changes to `initializing` or `crashedPermanently` | ||
| * depending on how many and how frequent errors have been caught recently. | ||
| * * `crashedPermanently` – A state when the watchdog stops reacting to errors and keeps the item it is watching crashed, | ||
| * * `destroyed` – A state when the item is manually destroyed by the user after calling `watchdog.destroy()`. | ||
| * | ||
| * @public | ||
| * @type {'initializing'|'ready'|'crashed'|'crashedPermanently'|'destroyed'} | ||
| */ | ||
| this.state = 'initializing'; | ||
| /** | ||
| * @protected | ||
| * @type {Number} | ||
| * @see module:watchdog/watchdog~WatchdogConfig | ||
| */ | ||
| this._crashNumberLimit = typeof config.crashNumberLimit === 'number' ? config.crashNumberLimit : 3; | ||
| /** | ||
| * Returns the result of the `Date.now()` call. It can be overridden in tests to mock time as some popular | ||
| * approaches like `sinon.useFakeTimers()` do not work well with error handling. | ||
| * | ||
| * @protected | ||
| */ | ||
| this._now = Date.now; | ||
| /** | ||
| * @protected | ||
| * @type {Number} | ||
| * @see module:watchdog/watchdog~WatchdogConfig | ||
| */ | ||
| this._minimumNonErrorTimePeriod = typeof config.minimumNonErrorTimePeriod === 'number' ? config.minimumNonErrorTimePeriod : 5000; | ||
| /** | ||
| * Checks if the event error comes from the underlying item and restarts the item. | ||
| * | ||
| * @private | ||
| * @type {Function} | ||
| */ | ||
| this._boundErrorHandler = evt => { | ||
| // `evt.error` is exposed by EventError while `evt.reason` is available in PromiseRejectionEvent. | ||
| const error = evt.error || evt.reason; | ||
| // Note that `evt.reason` might be everything that is in the promise rejection. | ||
| // Similarly everything that is thrown lands in `evt.error`. | ||
| if ( error instanceof Error ) { | ||
| this._handleError( error, evt ); | ||
| } | ||
| }; | ||
| /** | ||
| * The creation method. | ||
| * | ||
| * @protected | ||
| * @member {Function} #_creator | ||
| * @see #setCreator | ||
| */ | ||
| /** | ||
| * The destruction method. | ||
| * | ||
| * @protected | ||
| * @member {Function} #_destructor | ||
| * @see #setDestructor | ||
| */ | ||
| /** | ||
| * The watched item. | ||
| * | ||
| * @abstract | ||
| * @protected | ||
| * @member {Object|undefined} #_item | ||
| */ | ||
| /** | ||
| * The method responsible for restarting the watched item. | ||
| * | ||
| * @abstract | ||
| * @protected | ||
| * @method #_restart | ||
| */ | ||
| /** | ||
| * Traverses the error context and the watched item to find out whether the error should | ||
| * be handled by the given item. | ||
| * | ||
| * @abstract | ||
| * @protected | ||
| * @method #_isErrorComingFromThisItem | ||
| * @param {module:utils/ckeditorerror~CKEditorError} error | ||
| */ | ||
| /** | ||
| * A dictionary of event emitter listeners. | ||
| * | ||
| * @private | ||
| * @type {Object.<String,Array.<Function>>} | ||
| */ | ||
| this._listeners = {}; | ||
| if ( !this._restart ) { | ||
| throw new Error( | ||
| 'The Watchdog class was split into the abstract `Watchdog` class and the `EditorWatchdog` class. ' + | ||
| 'Please, use `EditorWatchdog` if you have used the `Watchdog` class previously.' | ||
| ); | ||
| } | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for creating watched items. | ||
| * | ||
| * @param {Function} creator A callback responsible for creating an item. Returns a promise | ||
| * that is resolved when the item is created. | ||
| */ | ||
| setCreator( creator ) { | ||
| this._creator = creator; | ||
| } | ||
| /** | ||
| * Sets the function that is responsible for destroying watched items. | ||
| * | ||
| * @param {Function} destructor A callback that takes the item and returns the promise | ||
| * to the destroying process. | ||
| */ | ||
| setDestructor( destructor ) { | ||
| this._destructor = destructor; | ||
| } | ||
| /** | ||
| * Destroys the watchdog and releases the resources. | ||
| */ | ||
| destroy() { | ||
| this._stopErrorHandling(); | ||
| this._listeners = {}; | ||
| } | ||
| /** | ||
| * Starts listening to a specific event name by registering a callback that will be executed | ||
| * whenever an event with a given name fires. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| * | ||
| * @param {String} eventName The event name. | ||
| * @param {Function} callback A callback which will be added to event listeners. | ||
| */ | ||
| on( eventName, callback ) { | ||
| if ( !this._listeners[ eventName ] ) { | ||
| this._listeners[ eventName ] = []; | ||
| } | ||
| this._listeners[ eventName ].push( callback ); | ||
| } | ||
| /** | ||
| * Stops listening to the specified event name by removing the callback from event listeners. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| * | ||
| * @param {String} eventName The event name. | ||
| * @param {Function} callback A callback which will be removed from event listeners. | ||
| */ | ||
| off( eventName, callback ) { | ||
| this._listeners[ eventName ] = this._listeners[ eventName ] | ||
| .filter( cb => cb !== callback ); | ||
| } | ||
| /** | ||
| * Fires an event with a given event name and arguments. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| * | ||
| * @protected | ||
| * @param {String} eventName The event name. | ||
| * @param {...*} args Event arguments. | ||
| */ | ||
| _fire( eventName, ...args ) { | ||
| const callbacks = this._listeners[ eventName ] || []; | ||
| for ( const callback of callbacks ) { | ||
| callback.apply( this, [ null, ...args ] ); | ||
| } | ||
| } | ||
| /** | ||
| * Starts error handling by attaching global error handlers. | ||
| * | ||
| * @protected | ||
| */ | ||
| _startErrorHandling() { | ||
| window.addEventListener( 'error', this._boundErrorHandler ); | ||
| window.addEventListener( 'unhandledrejection', this._boundErrorHandler ); | ||
| } | ||
| /** | ||
| * Stops error handling by detaching global error handlers. | ||
| * | ||
| * @protected | ||
| */ | ||
| _stopErrorHandling() { | ||
| window.removeEventListener( 'error', this._boundErrorHandler ); | ||
| window.removeEventListener( 'unhandledrejection', this._boundErrorHandler ); | ||
| } | ||
| /** | ||
| * Checks if an error comes from the watched item and restarts it. | ||
| * It reacts to {@link module:utils/ckeditorerror~CKEditorError `CKEditorError` errors} only. | ||
| * | ||
| * @private | ||
| * @fires error | ||
| * @param {Error} error Error. | ||
| * @param {ErrorEvent|PromiseRejectionEvent} evt An error event. | ||
| */ | ||
| _handleError( error, evt ) { | ||
| // @if CK_DEBUG // if ( error.is && error.is( 'CKEditorError' ) && error.context === undefined ) { | ||
| // @if CK_DEBUG // console.warn( 'The error is missing its context and Watchdog cannot restart the proper item.' ); | ||
| // @if CK_DEBUG // } | ||
| if ( this._shouldReactToError( error ) ) { | ||
| this.crashes.push( { | ||
| message: error.message, | ||
| stack: error.stack, | ||
| // `evt.filename`, `evt.lineno` and `evt.colno` are available only in ErrorEvent events | ||
| filename: evt.filename, | ||
| lineno: evt.lineno, | ||
| colno: evt.colno, | ||
| date: this._now() | ||
| } ); | ||
| const causesRestart = this._shouldRestart(); | ||
| this.state = 'crashed'; | ||
| this._fire( 'stateChange' ); | ||
| this._fire( 'error', { error, causesRestart } ); | ||
| if ( causesRestart ) { | ||
| this._restart(); | ||
| } else { | ||
| this.state = 'crashedPermanently'; | ||
| this._fire( 'stateChange' ); | ||
| } | ||
| } | ||
| } | ||
| /** | ||
| * Checks whether an error should be handled by the watchdog. | ||
| * | ||
| * @private | ||
| * @param {Error} error An error that was caught by the error handling process. | ||
| */ | ||
| _shouldReactToError( error ) { | ||
| return ( | ||
| error.is && | ||
| error.is( 'CKEditorError' ) && | ||
| error.context !== undefined && | ||
| // In some cases the watched item should not be restarted - e.g. during the item initialization. | ||
| // That's why the `null` was introduced as a correct error context which does cause restarting. | ||
| error.context !== null && | ||
| // Do not react to errors if the watchdog is in states other than `ready`. | ||
| this.state === 'ready' && | ||
| this._isErrorComingFromThisItem( error ) | ||
| ); | ||
| } | ||
| /** | ||
| * Checks if the watchdog should restart the underlying item. | ||
| * | ||
| * @private | ||
| */ | ||
| _shouldRestart() { | ||
| if ( this.crashes.length <= this._crashNumberLimit ) { | ||
| return true; | ||
| } | ||
| const lastErrorTime = this.crashes[ this.crashes.length - 1 ].date; | ||
| const firstMeaningfulErrorTime = this.crashes[ this.crashes.length - 1 - this._crashNumberLimit ].date; | ||
| const averageNonErrorTimePeriod = ( lastErrorTime - firstMeaningfulErrorTime ) / this._crashNumberLimit; | ||
| return averageNonErrorTimePeriod > this._minimumNonErrorTimePeriod; | ||
| } | ||
| /** | ||
| * Fired when a new {@link module:utils/ckeditorerror~CKEditorError `CKEditorError`} error connected to the watchdog instance occurs | ||
| * and the watchdog will react to it. | ||
| * | ||
| * watchdog.on( 'error', ( evt, { error, causesRestart } ) => { | ||
| * console.log( 'An error occurred.' ); | ||
| * } ); | ||
| * | ||
| * @event error | ||
| */ | ||
| /** | ||
| * @param {module:watchdog/watchdog~WatchdogConfig} config The watchdog plugin configuration. | ||
| */ | ||
| constructor(config) { | ||
| /** | ||
| * An array of crashes saved as an object with the following properties: | ||
| * | ||
| * * `message`: `String`, | ||
| * * `stack`: `String`, | ||
| * * `date`: `Number`, | ||
| * * `filename`: `String | undefined`, | ||
| * * `lineno`: `Number | undefined`, | ||
| * * `colno`: `Number | undefined`, | ||
| */ | ||
| this.crashes = []; | ||
| /** | ||
| * Specifies the state of the item watched by the watchdog. The state can be one of the following values: | ||
| * | ||
| * * `initializing` – Before the first initialization, and after crashes, before the item is ready. | ||
| * * `ready` – A state when the user can interact with the item. | ||
| * * `crashed` – A state when an error occurs. It quickly changes to `initializing` or `crashedPermanently` | ||
| * depending on how many and how frequent errors have been caught recently. | ||
| * * `crashedPermanently` – A state when the watchdog stops reacting to errors and keeps the item it is watching crashed, | ||
| * * `destroyed` – A state when the item is manually destroyed by the user after calling `watchdog.destroy()`. | ||
| */ | ||
| this.state = 'initializing'; | ||
| /** | ||
| * Returns the result of the `Date.now()` call. It can be overridden in tests to mock time as some popular | ||
| * approaches like `sinon.useFakeTimers()` do not work well with error handling. | ||
| */ | ||
| this._now = Date.now; | ||
| this.crashes = []; | ||
| this._crashNumberLimit = typeof config.crashNumberLimit === 'number' ? config.crashNumberLimit : 3; | ||
| this._minimumNonErrorTimePeriod = typeof config.minimumNonErrorTimePeriod === 'number' ? config.minimumNonErrorTimePeriod : 5000; | ||
| this._boundErrorHandler = evt => { | ||
| // `evt.error` is exposed by EventError while `evt.reason` is available in PromiseRejectionEvent. | ||
| const error = 'error' in evt ? evt.error : evt.reason; | ||
| // Note that `evt.reason` might be everything that is in the promise rejection. | ||
| // Similarly everything that is thrown lands in `evt.error`. | ||
| if (error instanceof Error) { | ||
| this._handleError(error, evt); | ||
| } | ||
| }; | ||
| this._listeners = {}; | ||
| if (!this._restart) { | ||
| throw new Error('The Watchdog class was split into the abstract `Watchdog` class and the `EditorWatchdog` class. ' + | ||
| 'Please, use `EditorWatchdog` if you have used the `Watchdog` class previously.'); | ||
| } | ||
| } | ||
| /** | ||
| * Destroys the watchdog and releases the resources. | ||
| */ | ||
| destroy() { | ||
| this._stopErrorHandling(); | ||
| this._listeners = {}; | ||
| } | ||
| /** | ||
| * Starts listening to a specific event name by registering a callback that will be executed | ||
| * whenever an event with a given name fires. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| * | ||
| * @param eventName The event name. | ||
| * @param callback A callback which will be added to event listeners. | ||
| */ | ||
| on(eventName, callback) { | ||
| if (!this._listeners[eventName]) { | ||
| this._listeners[eventName] = []; | ||
| } | ||
| this._listeners[eventName].push(callback); | ||
| } | ||
| /** | ||
| * Stops listening to the specified event name by removing the callback from event listeners. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| * | ||
| * @param eventName The event name. | ||
| * @param callback A callback which will be removed from event listeners. | ||
| */ | ||
| off(eventName, callback) { | ||
| this._listeners[eventName] = this._listeners[eventName] | ||
| .filter(cb => cb !== callback); | ||
| } | ||
| /** | ||
| * Fires an event with a given event name and arguments. | ||
| * | ||
| * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation. | ||
| */ | ||
| _fire(eventName, ...args) { | ||
| const callbacks = this._listeners[eventName] || []; | ||
| for (const callback of callbacks) { | ||
| callback.apply(this, [null, ...args]); | ||
| } | ||
| } | ||
| /** | ||
| * Starts error handling by attaching global error handlers. | ||
| */ | ||
| _startErrorHandling() { | ||
| window.addEventListener('error', this._boundErrorHandler); | ||
| window.addEventListener('unhandledrejection', this._boundErrorHandler); | ||
| } | ||
| /** | ||
| * Stops error handling by detaching global error handlers. | ||
| */ | ||
| _stopErrorHandling() { | ||
| window.removeEventListener('error', this._boundErrorHandler); | ||
| window.removeEventListener('unhandledrejection', this._boundErrorHandler); | ||
| } | ||
| /** | ||
| * Checks if an error comes from the watched item and restarts it. | ||
| * It reacts to {@link module:utils/ckeditorerror~CKEditorError `CKEditorError` errors} only. | ||
| * | ||
| * @fires error | ||
| * @param error Error. | ||
| * @param evt An error event. | ||
| */ | ||
| _handleError(error, evt) { | ||
| // @if CK_DEBUG // const err = error as CKEditorError; | ||
| // @if CK_DEBUG // if ( err.is && err.is( 'CKEditorError' ) && err.context === undefined ) { | ||
| // @if CK_DEBUG // console.warn( 'The error is missing its context and Watchdog cannot restart the proper item.' ); | ||
| // @if CK_DEBUG // } | ||
| if (this._shouldReactToError(error)) { | ||
| this.crashes.push({ | ||
| message: error.message, | ||
| stack: error.stack, | ||
| // `evt.filename`, `evt.lineno` and `evt.colno` are available only in ErrorEvent events | ||
| filename: evt instanceof ErrorEvent ? evt.filename : undefined, | ||
| lineno: evt instanceof ErrorEvent ? evt.lineno : undefined, | ||
| colno: evt instanceof ErrorEvent ? evt.colno : undefined, | ||
| date: this._now() | ||
| }); | ||
| const causesRestart = this._shouldRestart(); | ||
| this.state = 'crashed'; | ||
| this._fire('stateChange'); | ||
| this._fire('error', { error, causesRestart }); | ||
| if (causesRestart) { | ||
| this._restart(); | ||
| } | ||
| else { | ||
| this.state = 'crashedPermanently'; | ||
| this._fire('stateChange'); | ||
| } | ||
| } | ||
| } | ||
| /** | ||
| * Checks whether an error should be handled by the watchdog. | ||
| * | ||
| * @param error An error that was caught by the error handling process. | ||
| */ | ||
| _shouldReactToError(error) { | ||
| return (error.is && | ||
| error.is('CKEditorError') && | ||
| error.context !== undefined && | ||
| // In some cases the watched item should not be restarted - e.g. during the item initialization. | ||
| // That's why the `null` was introduced as a correct error context which does cause restarting. | ||
| error.context !== null && | ||
| // Do not react to errors if the watchdog is in states other than `ready`. | ||
| this.state === 'ready' && | ||
| this._isErrorComingFromThisItem(error)); | ||
| } | ||
| /** | ||
| * Checks if the watchdog should restart the underlying item. | ||
| */ | ||
| _shouldRestart() { | ||
| if (this.crashes.length <= this._crashNumberLimit) { | ||
| return true; | ||
| } | ||
| const lastErrorTime = this.crashes[this.crashes.length - 1].date; | ||
| const firstMeaningfulErrorTime = this.crashes[this.crashes.length - 1 - this._crashNumberLimit].date; | ||
| const averageNonErrorTimePeriod = (lastErrorTime - firstMeaningfulErrorTime) / this._crashNumberLimit; | ||
| return averageNonErrorTimePeriod > this._minimumNonErrorTimePeriod; | ||
| } | ||
| } | ||
| /** | ||
| * The watchdog plugin configuration. | ||
| * | ||
| * @typedef {Object} WatchdogConfig | ||
| * | ||
| * @property {Number} [crashNumberLimit=3] A threshold specifying the number of watched item crashes | ||
| * when the watchdog stops restarting the item in case of errors. | ||
| * After this limit is reached and the time between the last errors is shorter than `minimumNonErrorTimePeriod`, | ||
| * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop. | ||
| * | ||
| * @property {Number} [minimumNonErrorTimePeriod=5000] An average number of milliseconds between the last watched item errors | ||
| * (defaults to 5000). When the period of time between errors is lower than that and the `crashNumberLimit` is also reached, | ||
| * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop. | ||
| * | ||
| * @property {Number} [saveInterval=5000] A minimum number of milliseconds between saving the editor data internally (defaults to 5000). | ||
| * Note that for large documents this might impact the editor performance. | ||
| */ |
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Improved metrics
- Total package byte prevSize
- increased by28.09%
95681
- Number of package files
- increased by50%
18
- Lines of code
- increased by37.2%
1715
Worsened metrics
- Dev dependency count
- increased by11.11%
10
- Number of low quality alerts
- increased byInfinity%
1
- Number of medium supply chain risk alerts
- increased byInfinity%
1
No dependency changes