From d62c4af1007d255402dcccad3759da092beee07d Mon Sep 17 00:00:00 2001 From: yanasang Date: Fri, 24 Jul 2020 15:57:45 -0400 Subject: [PATCH 1/3] Set up package, copy over src for basic voices --- .gitignore | 1 + demo/index.html | 21 + package-lock.json | 3255 +++++++++++++++++++++++++++++++ package.json | 23 + src/events/elementAddedEvent.js | 14 + src/events/staveAddedEvent.js | 14 + src/events/staveReadyEvent.js | 13 + src/events/systemReadyEvent.js | 13 + src/events/voiceReadyEvent.js | 13 + src/index.js | 4 + src/vf-score.js | 249 +++ src/vf-stave.js | 209 ++ src/vf-system.js | 174 ++ src/vf-voice.js | 157 ++ 14 files changed, 4160 insertions(+) create mode 100644 .gitignore create mode 100644 demo/index.html create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/events/elementAddedEvent.js create mode 100644 src/events/staveAddedEvent.js create mode 100644 src/events/staveReadyEvent.js create mode 100644 src/events/systemReadyEvent.js create mode 100644 src/events/voiceReadyEvent.js create mode 100644 src/index.js create mode 100644 src/vf-score.js create mode 100644 src/vf-stave.js create mode 100644 src/vf-system.js create mode 100644 src/vf-voice.js diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3c3629e --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +node_modules diff --git a/demo/index.html b/demo/index.html new file mode 100644 index 0000000..0b9f261 --- /dev/null +++ b/demo/index.html @@ -0,0 +1,21 @@ + + + Vexflow Elements + + + + + + + + C5/q[id='hello'], (C4 Eb4 G4)/q, A4, G4/16, A4, B4, C5 + C#4/h, C#4 + + + C3/q, (C3 Eb3 G3)/q, A2/q, B2 + + + + + + \ No newline at end of file diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..911283d --- /dev/null +++ b/package-lock.json @@ -0,0 +1,3255 @@ +{ + "name": "vexflow-elements", + "version": "1.0.0", + "lockfileVersion": 1, + "requires": true, + "dependencies": { + "@babel/code-frame": { + "version": "7.10.4", 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index 0000000..33a751f --- /dev/null +++ b/src/events/elementAddedEvent.js @@ -0,0 +1,14 @@ +// ## Description +// +// This file implements `ElementAddedEvent`, the event that child elements +// dispatch when they've been added to the DOM in order to get the Factory +// instance used by all elements of the overall components. vf-score listens +// to this event and sets the vf property of the event target. + +export default class ElementAddedEvent extends Event { + static eventName = 'vf-element-added'; + + constructor() { + super(ElementAddedEvent.eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/events/staveAddedEvent.js b/src/events/staveAddedEvent.js new file mode 100644 index 0000000..2f2dd1d --- /dev/null +++ b/src/events/staveAddedEvent.js @@ -0,0 +1,14 @@ +// ## Description +// +// This file implements `StaveAddedEvent`, the event that vf-stave elements +// dispatch in order to get the Registry instance shared by all elements of the +// overall component. vf-score listens to this event and sets the registry +// property of the vf-stave that dispatched the event. + +export default class StaveAddedEvent extends Event { + static eventName = 'vf-stave-added'; + + constructor() { + super(StaveAddedEvent.eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/events/staveReadyEvent.js b/src/events/staveReadyEvent.js new file mode 100644 index 0000000..b8a8ce7 --- /dev/null +++ b/src/events/staveReadyEvent.js @@ -0,0 +1,13 @@ +// ## Description +// +// This file implements `StaveReadyEvent`, the event that vf-stave dispatches +// to its parent (vf-system) when it has finished creating its voices and +// is ready to be added to the system. + +export default class StaveReadyEvent extends Event { + static eventName = 'vf-stave-ready'; + + constructor() { + super(StaveReadyEvent.eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/events/systemReadyEvent.js b/src/events/systemReadyEvent.js new file mode 100644 index 0000000..7198a54 --- /dev/null +++ b/src/events/systemReadyEvent.js @@ -0,0 +1,13 @@ +// ## Description +// +// This file implements `SystemReadyEvent`, the event that vf-system dispatches +// to its parent (vf-score) when it has finished added its staves and +// is ready to be drawn. + +export default class SystemReadyEvent extends Event { + static eventName = 'vf-system-ready'; + + constructor() { + super(SystemReadyEvent.eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/events/voiceReadyEvent.js b/src/events/voiceReadyEvent.js new file mode 100644 index 0000000..991ac46 --- /dev/null +++ b/src/events/voiceReadyEvent.js @@ -0,0 +1,13 @@ +// ## Description +// +// This file implements `VoiceReadyEvent`, the event that vf-voice dispatches +// to its parent (vf-stave) when it has finished creating its notes & beams and +// is ready to be added to the stave. + +export default class VoiceReadyEvent extends Event { + static eventName = 'vf-voice-ready'; + + constructor() { + super(VoiceReadyEvent.eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/index.js b/src/index.js new file mode 100644 index 0000000..6ef6426 --- /dev/null +++ b/src/index.js @@ -0,0 +1,4 @@ +export { VFScore } from './vf-score'; +export { VFSystem } from './vf-system'; +export { VFStave } from './vf-stave'; +export { VFVoice } from './vf-voice'; \ No newline at end of file diff --git a/src/vf-score.js b/src/vf-score.js new file mode 100644 index 0000000..2e4b906 --- /dev/null +++ b/src/vf-score.js @@ -0,0 +1,249 @@ + +// ## Description +// +// This file implements `vf-score`, the web component that acts as the +// container for the entire component. `vf-score`'s shadow root holds +// the HTML element that the renderer renders too. +// +// All actual drawing is called from `vf-score`. + +import Vex from 'vexflow'; + +import ElementAddedEvent from './events/elementAddedEvent'; +import StaveAddedEvent from './events/staveAddedEvent'; +import SystemReadyEvent from './events/systemReadyEvent'; + +export class VFScore extends HTMLElement { + /** + * The Factory instance to be used by the overall component that this vf-score + * wraps. + */ + vf; + + /** + * The Registry instance to be used by the overall component that this + * vf-score wraps. + */ + registry; + + /** + * The Renderer instance, attached to the div or canvas element that this + * vf-score component renders into. + * @private + */ + _renderer; + + /** + * The renderer context. + * @private + */ + _context; + + /** + * The starting x position of a system within the score. + * @private + */ + _x = 10; + + /** + * The starting y position of system within the score. + * @private + */ + _y = 0; + + /** + * The entire width of the element holding the music notation. + * @private + */ + _width = 500; + + /** + * The entire height of the element holding the music notation. + * @private + */ + _height = 150; + + /** + * The number of systems per line. + * @private + */ + _systemsPerLine = 1; + + /** + * Counter that keeps track of how many systems have dispatched events + * signalling that they are ready to be drawn. When the number of children + * matches this counter, the entire score is ready to be drawn. + * FOR THIS PR: a vf-score can only have one vf-system. + * @private + */ + _systemsAdded = 0; + + /** + * The type of renderer to use for this vf-score component. + * @private + */ + _rendererType = 'svg'; + + /** + * Boolean describing whether the VexFlow renderer, context, registry, and + * factory instances have been created already. + * @private + */ + _isSetup = false; + + constructor() { + super(); + + this.attachShadow({ mode:'open' }); + + // The 'vf-system-ready' event is dispatched by a vf-systen when it has + // finished creating and adding its staves. vf-score listens to this event + // so that it can add that it can detect when the vf-system is ready to + // be drawn. + this.addEventListener(SystemReadyEvent.eventName, this.systemCreated); + + // The 'vf-element-added' event is dispatched by all the child elements + // when they are added to the DOM. vf-score listens to these events so that + // it can set the child elements' Factory instances, since these are shared + // by a vf-score and all its children to maintain the same render queue. + this.addEventListener(ElementAddedEvent.eventName, this.setFactory); + + // The 'vf-stave-added' event is dispatched only by the vf-stave child. + this.addEventListener(StaveAddedEvent.eventName, this.setRegistry); + } + + connectedCallback() { + this._x = parseInt(this.getAttribute('x')) || this._x; + this._y = parseInt(this.getAttribute('y')) || this._y; + this._rendererType = this.getAttribute('renderer') || this._rendererType; + + + // Because connectedCallback could be called multiple times, safeguard + // against setting up the renderer, factory, etc. more than once. + if (!this._isSetup) { + this._setupVexflow(); + this._setupFactory(); + } + + // vf-score listens to the slotchange event so that it can detect its system + // and set it up accordingly + this.shadowRoot.querySelector('slot').addEventListener('slotchange', this.registerSystem); + } + + disconnectedCallback() { + // TODO (ywsang): Clean up any resources that may need to be cleaned up. + this.shadowRoot.querySelector('slot').removeEventListener('slotchange', this.registerSystem); + } + + static get observedAttributes() { return ['x', 'y', 'width', 'height', 'renderer'] } + + attributeChangedCallback(name, oldValue, newValue) { + switch(name) { + case 'x': + case 'y': + // TODO (ywsang): Implement code to update the position of the vf-system + // children. + break; + case 'width': + this._width = newValue; + // TODO (ywsang): Implement code to resize the renderer. Need to make + // sure the renderer is already created! + break; + case 'height': + this._height = newValue; + // TODO (ywsang): Implement code to resize the renderer. Need to make + // sure the renderer is already created! + break; + case 'renderer': + this._rendererType = newValue; + break; + } + } + + /** + * Sets up the renderer, context, and registry for this component. + * @private + */ + _setupVexflow() { + // Default to the SVG renderer if not specified. + this.shadowRoot.innerHTML = this._rendererType === 'canvas' + ? `` + : `
` + const element = this.shadowRoot.querySelector('#vf-score') + + if (this._rendererType === 'canvas') { + this._renderer = new Vex.Flow.Renderer(element, Vex.Flow.Renderer.Backends.CANVAS); + } else { + this._renderer = new Vex.Flow.Renderer(element, Vex.Flow.Renderer.Backends.SVG); + } + + this._renderer.resize(this._width, this._height); + this._context = this._renderer.getContext(); + this.registry = new Vex.Flow.Registry(); + } + + /** + * @private + */ + _setupFactory() { + // Factory is constructed with a null elementId because the underlying code + // uses document.querySelector(elementId) to find the element to attach the + // renderer to, but the web component puts the element in the shadow DOM. As + // such, the element would not be found due to DOM encapsulation. However, + // in order to use the simplified EasyScore API constructors, a Factory + // instance is still needed. + // TODO (ywsang): Allow Factory to take in an element reference? + this.vf = new Vex.Flow.Factory({ renderer: { elementId: null } }); + this.vf.setContext(this._context); + + this._isSetup = true; + } + + getNoteFromId(id) { + return this.registry.getElementById(id); + } + + /** + * "Registers" the vf-system child. + * This PR only supports/assumes one vf-system per vf-score. + */ + registerSystem = () => { + const system = this.shadowRoot.querySelector('slot').assignedElements()[0]; + // TODO (ywsang): Figure out how to account for any added connectors that + // get drawn in front of the x position (e.g. brace, bracket) + system.setupSystem(this._x, this._y, this._width - this._x - 1); // Minus 1 to account for the overflow of the right bar line + } + + /** + * Once all systems have dispatched events signalling that they've added their + * staves, the entire score is drawn. + */ + systemCreated = () => { + this.addSystemConnectors(); + this.vf.draw(); + } + + addSystemConnectors() { + const system = this.vf.systems[0]; // TODO (ywsang): Replace with better + // logic once more than one system per + // score is allowed. + system.addConnector('singleRight'); + system.addConnector('singleLeft'); + } + + /** + * Sets the factory instance of the component that dispatched the event. + */ + setFactory = (event) => { + event.target.vf = this.vf; + } + + /** + * Sets the registry instance of the component that dispatched the event. + */ + setRegistry = (event) => { + event.target.registry = this.registry; + } +} + +window.customElements.define('vf-score', VFScore); diff --git a/src/vf-stave.js b/src/vf-stave.js new file mode 100644 index 0000000..795afe1 --- /dev/null +++ b/src/vf-stave.js @@ -0,0 +1,209 @@ + +// ## Description +// +// This file implements `vf-stave`, the web component that resembles +// the `Stave` element. One `vf-stave` can have multiple `vf-voice` children. +// `vf-stave` is responsible for keeping track of its children and creating +// the voices once they finish generating their notes. +// Once the voices are created, `vf-stave` dispatches an event to its parent +// `vf-system` to signal that it's ready to be created and added to the system. + +import './vf-score'; +import ElementAddedEvent from './events/elementAddedEvent'; +import StaveAddedEvent from './events/staveAddedEvent'; +import VoiceReadyEvent from './events/voiceReadyEvent'; +import StaveReadyEvent from './events/staveReadyEvent'; + +export class VFStave extends HTMLElement { + + /** + * The Vex.Flow.Factory instance to use. + * @type {Vex.Flow.Factory} + * @private + */ + _vf; + + /** + * The Vex.Flow.Registry instance to use when registering elements. + * @type {Vex.Flow.Registry} + * @private + */ + _registry; + + /** + * The voices that this vf-stave has. + * @type {[Vex.Flow.Voice]} + */ + voices = []; + + /** + * The beams for the voices that this vf-stave has. + * @type {[Vex.Flow.Beam]} + */ + beams = []; + + constructor() { + super(); + + this.attachShadow({ mode:'open' }); + this.shadowRoot.innerHTML = ``; + + // The 'vf-voice-ready' event is dispatched by a vf-voice when it has + // finished generating its notes. vf-stave listens to this event so that it + // can get that vf-voice's notes and generate a Voice from it. + this.addEventListener(VoiceReadyEvent.eventName, this.addVoice); + + // The 'vf-element-ready' event is dispatched by a vf-voice when it's added + // to the DOM. vf-stave listens to this event so that it can set the vf-voice's + // EasyScore instance, since a single EasyScore instance is shared by a + // vf-stave and all its children. + this.addEventListener(ElementAddedEvent.eventName, this.setScore); + } + + connectedCallback() { + this.clef = this.getAttribute('clef'); + this.timeSig = this.getAttribute('timeSig'); + this.keySig = this.getAttribute('keySig'); + + this.dispatchEvent(new StaveAddedEvent()); + this.dispatchEvent(new ElementAddedEvent()); + + // vf-stave listens to the slotchange event so that it can detect its voices + // and establish how many voices it expects to receive events from. + this.shadowRoot.querySelector('slot').addEventListener('slotchange', this.registerVoices); + } + + disconnectedCallback() { + this.shadowRoot.querySelector('slot').removeEventListener('slotchange', this.registerVoices); + } + + static get observedAttributes() { return ['clef', 'timeSig', 'keySig'] } + + attributeChangedCallback(name, oldValue, newValue) { + // TODO (ywsang): Implement code to update based on changes to attributes + } + + /** + * Setter to detect when the Factory instance is set. Once the Factory is set, + * vf-stave can start creating components. + * + * @param {Vex.Flow.Factory} value - The Factory instance that the overall + * component is using, set by the parent + * vf-score. + */ + set vf(value) { + this._vf = value; + this._setupScore(); + } + + /** + * Setter to detect when the Registry instance is set. + * + * @param {Vex.Flow.Factory} value - The Registry instance that the overall + * component is using, set by the parent + * vf-score. + */ + set registry(value) { + this._registry = value; + } + + /** + * Sets up the EasyScore instance to be used by the overall component. One + * EasyScore instance is used for vf-stave and its children so that the clef + * and time can be set by the stave and don't have to be provided as + * attributes on the children or set on the children. + * @private + */ + _setupScore() { + this.score = this._vf.EasyScore(); + // Defaults to treble clef, 4/4 time if not specified + this.score.set({ + clef: this.clef || 'treble', + time: this.timeSig || '4/4' + }); + } + + /** + * The slotchange event listener. This event listener sets the number of + * vf-voices that this vf-stave expects to receive dispatched event from. + */ + registerVoices = () => { + const voiceSlots = this.shadowRoot.querySelector('slot').assignedElements().filter(e => e.nodeName === 'VF-VOICE'); + this.numVoices = voiceSlots.length; + + // Perform this check at the end of slotchange listener to catch the case in + // which all of the vf-voice children dispatch events before the slot change + // completes. + if (this.voices.length === this.numVoices) { + this.staveCreated(); + } + } + + /** + * This is the event listener for when a vf-voice has finished creating its + * notes. Creates a Vex.Flow.Voice from the vf-voice's notes and adds the + * resulting voice and the vf-voice's beams to the corresponding arrays + * maintained by the vf-stave. + * + * @param {VoiceReadyEvent} event - The event, where event.target is a vf-voice. + */ + addVoice = (event) => { + const notes = event.target.notes; + const beams = event.target.beams; + + this.registerNotes(notes); + const voice = this.createVoiceFromNotes(notes); + + this.voices.push(voice); + this.beams = this.beams.concat(beams); + + // Check to ensure that all voices have been created before telling the + // parent vf-system that it's ready to be created and added to the system. + if (this.voices.length === this.numVoices) { + this.staveCreated(); + } + } + + /** + * Register notes that have non-auto-generated IDs to the score's registry + * + * @param {[Vex.Flow.StaveNote]} staveNotes - The notes to register. + */ + registerNotes(staveNotes) { + staveNotes.forEach( note => { + const id = note.attrs.id; + // Only register the notes that have a non-auto-generated ID. + if (!id.includes('auto')) { + this._registry.register(note, id); + } + }) + } + + /** + * Creates a Voice from the provided notes. + * + * @param {[Vex.Flow.StaveNote]} staveNotes - The notes to create the voice from. + * @return {Vex.Flow.Voice} The Voice generated from the provided notes. + */ + createVoiceFromNotes(staveNotes) { + return this.score.voice(staveNotes); + } + + /** + * Tells the parent vf-system that this vf-stave has finished creating its + * voices and is ready to be added to the system. + */ + staveCreated() { + this.dispatchEvent(new StaveReadyEvent()); + } + + /** + * Sets the score instance of the component that dispatched the event. + */ + setScore = (event) => { + event.target.score = this.score; + } + +} + +window.customElements.define('vf-stave', VFStave); diff --git a/src/vf-system.js b/src/vf-system.js new file mode 100644 index 0000000..70da958 --- /dev/null +++ b/src/vf-system.js @@ -0,0 +1,174 @@ +// ## Description +// +// This file implements `vf-system`, the web component that resembles +// the `System` element. One `vf-system` can have multiple `vf-stave` children. +// `vf-system` is responsible for keeping track of its children and creating +// the child staves once they finish generating their components. +// Once the child staves are added, `vf-system` dispatches an event to its +// parent `vf-score` to signal that it's ready to be drawn. + +import './vf-score'; +import ElementAddedEvent from './events/elementAddedEvent'; +import StaveReadyEvent from './events/staveReadyEvent'; +import SystemReadyEvent from './events/systemReadyEvent'; + +export class VFSystem extends HTMLElement { + + /** + * Counter that keeps track of how many staves are expected versus how many + * have dispatched events. Aside from its initial value of 0, when + * `this.numStaves` = 0, the number of staves expected matches the number of + * staves that have dispatched events, which indicates that this vf-system can + * begin creating and adding the staves to its System. + * @private + */ + _numStaves = 0; + + /** + * Map of the child vf-stave elements to their voices. + * @private + */ + _staveToVoicesMap = new Map(); + + constructor() { + super(); + + this.attachShadow({ mode:'open' }); + this.shadowRoot.innerHTML = ``; + + // The 'staveCreated' event is dispatched by a vf-stave when it has finished + // generating its voices. vf-system listens to this event so that it can add + // that vf-staves information to the staveToVoiceMap and update the + // numStaves counter. + this.addEventListener(StaveReadyEvent.eventName, this._staveCreated); + } + + connectedCallback() { + this.dispatchEvent(new ElementAddedEvent()); + } + + /** + * Setter to detect when the Factory instance is set. Once the Factory is set, + * vf-system can start creating components. + * + * @param {Vex.Flow.Factory} value - The Factory instance that the overall + * component is using, set by the parent + * vf-score. + */ + set vf(value) { + this._vf = value; + this._registerStaves(); + } + + /** + * Sets up the Vex.Flow.System instance that this vf-system represents. + * + * @param {int} x - The x position for the system. + * @param {int} y - The y position for the system. + * @param {int} width - The width for the system. + */ + setupSystem(x, y, width) { + this.x = x; + this.y = y; + this.width = width; + this.system = this._vf.System({ + x: x, + y: y, + width: width, + factory: this._vf + }); + + // Call createSystem at the end of the system setup to catch the case in + // which all of the vf-stave children dispatch events before setUpSystem + // completes. + this._createSystem(); + } + + /** + * This function looks at the number of vf-staves that this vf-system has as + * children. We "register" them by incrementing the counter to signal how many + * vf-staves we expect to get events from, as well as get their order + * according to the HTML markup. Because the vf-stave components are not + * guaranteed to dispatch their events in the order that they appear in the + * markup, we need this order so that they can be added to the system in the + * correct order. + * + * @private + */ + _registerStaves = () => { + const staves = this.shadowRoot.querySelector('slot').assignedElements().filter(e => e.nodeName === 'VF-STAVE'); + this._numStaves += staves.length; + this.staveOrder = staves; + this._createSystem(); + } + + /** + * Event listener for a vf-stave finished creating voices event. + * + * @private + */ + _staveCreated = (event) => { + this._staveToVoicesMap.set(event.target, event.target.voices); + // Decrement numStaves to signal that a stave has finished creating its components + this._numStaves--; + + // Call createSystem to check whether this vf-system is ready to add its staves. + this._createSystem(); + } + + /** + * Checks whether the vf-system has set up its System instance and all the + * vf-stave children have dispatched events. If both of these conditions are + * true, the staves are created and added to the system. + * + * @private + */ + _createSystem() { + // Only add the staves once they've all finished creating their components + if (this.system && this._numStaves === 0) { + // Add staves to system according to their slot order + this.staveOrder.forEach(element => { + const stave = this._vf.Stave({ + x: this.x, + y: this.y, + width: this.width, + options: { + // Don't draw left and right bar lines because vf-system will add connectors + left_bar: false, + right_bar: false + }, + }); + + if (element.hasAttribute('clef')) { + stave.addClef(element.clef); + } + + if (element.hasAttribute('timeSig')) { + stave.addTimeSignature(element.timeSig); + } + + if (element.hasAttribute('keySig')) { + stave.addKeySignature(element.keySig); + } + + stave.clef = element.clef; + + const voices = this._staveToVoicesMap.get(element); + this.system.addStave({ stave: stave, voices: voices }); + }) + + // Add connectors (if specified) once all staves are added + if (this.hasAttribute('connected')) { + this.system.addConnector('brace'); + } + + // Tells parent (vf-score) that this system has finished adding its staves + // const systemCreatedEvent = new CustomEvent('systemCreated', { bubbles: true }); + // this.dispatchEvent(systemCreatedEvent); + + this.dispatchEvent(new SystemReadyEvent()); + } + } +} + +window.customElements.define('vf-system', VFSystem); diff --git a/src/vf-voice.js b/src/vf-voice.js new file mode 100644 index 0000000..3899f4d --- /dev/null +++ b/src/vf-voice.js @@ -0,0 +1,157 @@ + +// ## Description +// +// This file implements `vf-voice`, the web component that resembles +// the `Voice` element. +// `vf-voice` is responsible for generating and/or gathering +// all of the notes and beams that make up the voice, including those from its +// child components, which may be `vf-tuplet`s and `vf-beam`s. +// Once all the notes and beams are created, `vf-voice` dispatches an event to +// its parent `vf-stave` to signal that it's ready for the voice to be created +// the voice. + +import Vex from 'vexflow'; + +import './vf-stave'; +import ElementAddedEvent from './events/elementAddedEvent'; +import VoiceReadyEvent from './events/voiceReadyEvent'; + +export class VFVoice extends HTMLElement { + + /** + * The Vex.Flow.Factory instance to use. + * @type {Vex.Flow.Factory} + * @private + */ + _vf; + + /** + * The Vex.Flow.EasyScore instance to use. + * @type {Vex.Flow.Registry} + * @private + */ + _score; + + /** + * The stem direction for this voice. Can be 'up' or 'down'. + * @type {string} + */ + stem = 'up'; + + /** + * Boolean indicating whether to autogenerate beams for this voice. + * @type {boolean} + */ + autoBeam = false; + + /** + * The notes that make up this voice. + * @type {[Vex.Flow.StaveNote]} + */ + notes = []; + + /** + * The beams that make up this voice. + * @type {[Vex.Flow.Beam]} + */ + beams = []; + + constructor() { + super(); + + this.attachShadow({ mode: 'open' }); + } + + connectedCallback() { + this.stem = this.getAttribute('stem') || this.stem; + this.autoBeam = this.hasAttribute('autoBeam'); + + this.dispatchEvent(new ElementAddedEvent()); + } + + static get observedAttributes() { return ['stem', 'autoBeam'] } + + attributeChangedCallback(name, oldValue, newValue) { + // TODO (ywsang): Implement code to update based on changes to attributes + } + + /** + * Setter to detect when the Factory instance is set. Once the Factory and + * EasyScore instances are set, vf-voice can start creating components. + * + * @param {Vex.Flow.Factory} value - The Factory instance that the overall + * component is using, set by the parent + * vf-score. + */ + set vf(value) { + this._vf = value; + this.createNotes(); + } + + /** + * Setter to detect when the EasyScore instance is set. Once the Factory and + * EasyScore instances are set, vf-voice can start creating components. + * + * @param {Vex.Flow.EasyScore} value - The EasyScore instance that the parent + * stave and its children are using, set + * by the parent vf-stave. + */ + set score(value) { + this._score = value; + this.createNotes(); + } + + /** + * Creates notes (and optionally, beams) from the text content of this + * vf-voice element. + */ + createNotes = () => { + if (this._vf && this._score) { + const notes = this._createNotesFromText(this.textContent.trim()); + // Maintaining notes in an array to set-up for future child components + // that will provide their own notes + this.notes.push(...notes); + if (this.autoBeam) { + this.beams.push(...this._autoGenerateBeams(notes)); + } + + this.dispatchEvent(new VoiceReadyEvent(this.notes, this.beams)); + } + } + + /** + * Generates notes based on the text content of this vf-voice element. + * Utlizes the EasyScore API Grammar & Parser. + * + * @param {String} text - The string to parse and create notes from. + * @return {[Vex.Flow.StaveNote]} - The notes that were generated from the text. + * @private + */ + _createNotesFromText(text) { + this._score.set({ stem: this.stem }); + const staveNotes = this._score.notes(text); + return staveNotes; + } + + /** + * Automatically generates beams for the provided notes. + * + * @param {[Vex.Flow.StaveNote]} notes - The notes to autogenerate beams for. + * @return {[Vex.Flow.Beam]} - The autogenerated beams. + * @private + */ + _autoGenerateBeams(notes) { + // TODO (ywsang): Use default beam groups? + // const groups = Vex.Flow.Beam.getDefaultBeamGroups(this._score.defaults.time); + // const beams = Vex.Flow.Beam.generateBeams(notes, { + // groups: groups + // }); + const beams = Vex.Flow.Beam.generateBeams(notes); + beams.forEach( beam => { + this._vf.renderQ.push(beam); + }) + return beams; + } +} + +window.customElements.define('vf-voice', VFVoice); From 602fbd20b17483afad4beacd49bb94ecdaf3062d Mon Sep 17 00:00:00 2001 From: yanasang Date: Wed, 29 Jul 2020 11:25:31 -0400 Subject: [PATCH 2/3] Style fixes, add liscense --- LISCENSE | 28 +++++++++++++ package.json | 3 +- src/events/elementAddedEvent.js | 13 +++--- src/vf-score.js | 73 ++++++++++++++++++--------------- src/vf-stave.js | 41 +++++++++--------- src/vf-system.js | 25 +++++------ src/vf-voice.js | 27 ++++++------ 7 files changed, 122 insertions(+), 88 deletions(-) create mode 100644 LISCENSE diff --git a/LISCENSE b/LISCENSE new file mode 100644 index 0000000..d5a1b4b --- /dev/null +++ b/LISCENSE @@ -0,0 +1,28 @@ +BSD 3-Clause License + +Copyright (c) 2020, The Polymer Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +* Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/package.json b/package.json index f90ca75..49b6145 100644 --- a/package.json +++ b/package.json @@ -11,7 +11,8 @@ "type": "git", "url": "git+https://github.com/PolymerLabs/vexflow-elements.git" }, - "author": "", + "author": "The Polymer Authors", + "license": "BSD-3-Clause", "bugs": { "url": "https://github.com/PolymerLabs/vexflow-elements/issues" }, diff --git a/src/events/elementAddedEvent.js b/src/events/elementAddedEvent.js index 33a751f..6d491e9 100644 --- a/src/events/elementAddedEvent.js +++ b/src/events/elementAddedEvent.js @@ -1,10 +1,9 @@ -// ## Description -// -// This file implements `ElementAddedEvent`, the event that child elements -// dispatch when they've been added to the DOM in order to get the Factory -// instance used by all elements of the overall components. vf-score listens -// to this event and sets the vf property of the event target. - +/** + * Event that child elements dispatch when they have been added to the DOM so + * that they can get the Factory instance to be used by all elements of the + * overall component. + * `vf-score` listens to this event and sets the vf property of the event target. + */ export default class ElementAddedEvent extends Event { static eventName = 'vf-element-added'; diff --git a/src/vf-score.js b/src/vf-score.js index 2e4b906..1ceb1e9 100644 --- a/src/vf-score.js +++ b/src/vf-score.js @@ -1,18 +1,16 @@ - -// ## Description -// -// This file implements `vf-score`, the web component that acts as the -// container for the entire component. `vf-score`'s shadow root holds -// the HTML element that the renderer renders too. -// -// All actual drawing is called from `vf-score`. - import Vex from 'vexflow'; import ElementAddedEvent from './events/elementAddedEvent'; import StaveAddedEvent from './events/staveAddedEvent'; import SystemReadyEvent from './events/systemReadyEvent'; +/** + * Implements the `vf-score` web component, which acts as the container for + * the entire component. `vf-score`'s shadow root holds the HTML element that + * the renderer renders too. + * + * All actual drawing is called from `vf-score`. + */ export class VFScore extends HTMLElement { /** * The Factory instance to be used by the overall component that this vf-score @@ -100,16 +98,16 @@ export class VFScore extends HTMLElement { // finished creating and adding its staves. vf-score listens to this event // so that it can add that it can detect when the vf-system is ready to // be drawn. - this.addEventListener(SystemReadyEvent.eventName, this.systemCreated); + this.addEventListener(SystemReadyEvent.eventName, this._systemCreated); // The 'vf-element-added' event is dispatched by all the child elements // when they are added to the DOM. vf-score listens to these events so that // it can set the child elements' Factory instances, since these are shared // by a vf-score and all its children to maintain the same render queue. - this.addEventListener(ElementAddedEvent.eventName, this.setFactory); + this.addEventListener(ElementAddedEvent.eventName, this._setFactory); // The 'vf-stave-added' event is dispatched only by the vf-stave child. - this.addEventListener(StaveAddedEvent.eventName, this.setRegistry); + this.addEventListener(StaveAddedEvent.eventName, this._setRegistry); } connectedCallback() { @@ -127,12 +125,12 @@ export class VFScore extends HTMLElement { // vf-score listens to the slotchange event so that it can detect its system // and set it up accordingly - this.shadowRoot.querySelector('slot').addEventListener('slotchange', this.registerSystem); + this.shadowRoot.querySelector('slot').addEventListener('slotchange', this._registerSystem); } disconnectedCallback() { // TODO (ywsang): Clean up any resources that may need to be cleaned up. - this.shadowRoot.querySelector('slot').removeEventListener('slotchange', this.registerSystem); + this.shadowRoot.querySelector('slot').removeEventListener('slotchange', this._registerSystem); } static get observedAttributes() { return ['x', 'y', 'width', 'height', 'renderer'] } @@ -154,9 +152,6 @@ export class VFScore extends HTMLElement { // TODO (ywsang): Implement code to resize the renderer. Need to make // sure the renderer is already created! break; - case 'renderer': - this._rendererType = newValue; - break; } } @@ -177,12 +172,13 @@ export class VFScore extends HTMLElement { this._renderer = new Vex.Flow.Renderer(element, Vex.Flow.Renderer.Backends.SVG); } - this._renderer.resize(this._width, this._height); + this._resize(); this._context = this._renderer.getContext(); this.registry = new Vex.Flow.Registry(); } /** + * Sets up the factory for this component. * @private */ _setupFactory() { @@ -192,38 +188,49 @@ export class VFScore extends HTMLElement { // such, the element would not be found due to DOM encapsulation. However, // in order to use the simplified EasyScore API constructors, a Factory // instance is still needed. - // TODO (ywsang): Allow Factory to take in an element reference? this.vf = new Vex.Flow.Factory({ renderer: { elementId: null } }); this.vf.setContext(this._context); this._isSetup = true; } - getNoteFromId(id) { - return this.registry.getElementById(id); + /** + * Resizes the renderer to the score's width and height properties. + * @private + */ + _resize() { + this._renderer.resize(this._width, this._height); } /** * "Registers" the vf-system child. * This PR only supports/assumes one vf-system per vf-score. + * @private */ - registerSystem = () => { + _registerSystem = () => { const system = this.shadowRoot.querySelector('slot').assignedElements()[0]; // TODO (ywsang): Figure out how to account for any added connectors that // get drawn in front of the x position (e.g. brace, bracket) - system.setupSystem(this._x, this._y, this._width - this._x - 1); // Minus 1 to account for the overflow of the right bar line - } + // Minus 1 on width to account for the overflow of the right bar line + system.setupSystem(this._x, this._y, this._width - this._x - 1); + }; /** * Once all systems have dispatched events signalling that they've added their * staves, the entire score is drawn. + * @private */ - systemCreated = () => { - this.addSystemConnectors(); + _systemCreated = () => { + this._addSystemConnectors(); this.vf.draw(); - } + }; - addSystemConnectors() { + /** + * Adds connectors (barlines) to the right and left side of the systems in + * this score. + * @private + */ + _addSystemConnectors() { const system = this.vf.systems[0]; // TODO (ywsang): Replace with better // logic once more than one system per // score is allowed. @@ -233,17 +240,19 @@ export class VFScore extends HTMLElement { /** * Sets the factory instance of the component that dispatched the event. + * @private */ - setFactory = (event) => { + _setFactory = (event) => { event.target.vf = this.vf; - } + }; /** * Sets the registry instance of the component that dispatched the event. + * @private */ - setRegistry = (event) => { + _setRegistry = (event) => { event.target.registry = this.registry; - } + }; } window.customElements.define('vf-score', VFScore); diff --git a/src/vf-stave.js b/src/vf-stave.js index 795afe1..d99360a 100644 --- a/src/vf-stave.js +++ b/src/vf-stave.js @@ -1,19 +1,17 @@ - -// ## Description -// -// This file implements `vf-stave`, the web component that resembles -// the `Stave` element. One `vf-stave` can have multiple `vf-voice` children. -// `vf-stave` is responsible for keeping track of its children and creating -// the voices once they finish generating their notes. -// Once the voices are created, `vf-stave` dispatches an event to its parent -// `vf-system` to signal that it's ready to be created and added to the system. - import './vf-score'; import ElementAddedEvent from './events/elementAddedEvent'; import StaveAddedEvent from './events/staveAddedEvent'; import VoiceReadyEvent from './events/voiceReadyEvent'; import StaveReadyEvent from './events/staveReadyEvent'; +/** + * Implements `vf-stave`, the web component that resembles VexFlow's `Stave` + * element. One `vf-stave` can have multiple `vf-voice` children. + * `vf-stave` is responsible for keeping track of its children and creating + * voices once the children finish generating their notes and beams. + * Once the voices are created, `vf-stave` dispatches an event to its parent + * `vf-system` to signal that it's ready to be created and added to the system. + */ export class VFStave extends HTMLElement { /** @@ -135,9 +133,9 @@ export class VFStave extends HTMLElement { // which all of the vf-voice children dispatch events before the slot change // completes. if (this.voices.length === this.numVoices) { - this.staveCreated(); + this._staveCreated(); } - } + }; /** * This is the event listener for when a vf-voice has finished creating its @@ -151,8 +149,8 @@ export class VFStave extends HTMLElement { const notes = event.target.notes; const beams = event.target.beams; - this.registerNotes(notes); - const voice = this.createVoiceFromNotes(notes); + this._registerNotes(notes); + const voice = this._createVoiceFromNotes(notes); this.voices.push(voice); this.beams = this.beams.concat(beams); @@ -160,16 +158,17 @@ export class VFStave extends HTMLElement { // Check to ensure that all voices have been created before telling the // parent vf-system that it's ready to be created and added to the system. if (this.voices.length === this.numVoices) { - this.staveCreated(); + this._staveCreated(); } - } + }; /** * Register notes that have non-auto-generated IDs to the score's registry * * @param {[Vex.Flow.StaveNote]} staveNotes - The notes to register. + * @private */ - registerNotes(staveNotes) { + _registerNotes(staveNotes) { staveNotes.forEach( note => { const id = note.attrs.id; // Only register the notes that have a non-auto-generated ID. @@ -184,16 +183,18 @@ export class VFStave extends HTMLElement { * * @param {[Vex.Flow.StaveNote]} staveNotes - The notes to create the voice from. * @return {Vex.Flow.Voice} The Voice generated from the provided notes. + * @private */ - createVoiceFromNotes(staveNotes) { + _createVoiceFromNotes(staveNotes) { return this.score.voice(staveNotes); } /** * Tells the parent vf-system that this vf-stave has finished creating its * voices and is ready to be added to the system. + * @private */ - staveCreated() { + _staveCreated() { this.dispatchEvent(new StaveReadyEvent()); } @@ -202,7 +203,7 @@ export class VFStave extends HTMLElement { */ setScore = (event) => { event.target.score = this.score; - } + }; } diff --git a/src/vf-system.js b/src/vf-system.js index 70da958..d043af5 100644 --- a/src/vf-system.js +++ b/src/vf-system.js @@ -1,17 +1,17 @@ -// ## Description -// -// This file implements `vf-system`, the web component that resembles -// the `System` element. One `vf-system` can have multiple `vf-stave` children. -// `vf-system` is responsible for keeping track of its children and creating -// the child staves once they finish generating their components. -// Once the child staves are added, `vf-system` dispatches an event to its -// parent `vf-score` to signal that it's ready to be drawn. - import './vf-score'; import ElementAddedEvent from './events/elementAddedEvent'; import StaveReadyEvent from './events/staveReadyEvent'; import SystemReadyEvent from './events/systemReadyEvent'; +/** + * Implements the`vf-system` web component, the web component that resembles + * VexFlow's `System` element. + * One `vf-system` can have multiple `vf-stave` children. `vf-system` is + * responsible for keeping track of its children and creating the child staves + * once they finish generating their components. + * Once the child staves are added, `vf-system` dispatches an event to its + * parent `vf-score` to signal that it's ready to be drawn. + */ export class VFSystem extends HTMLElement { /** @@ -92,7 +92,6 @@ export class VFSystem extends HTMLElement { * guaranteed to dispatch their events in the order that they appear in the * markup, we need this order so that they can be added to the system in the * correct order. - * * @private */ _registerStaves = () => { @@ -100,11 +99,10 @@ export class VFSystem extends HTMLElement { this._numStaves += staves.length; this.staveOrder = staves; this._createSystem(); - } + }; /** * Event listener for a vf-stave finished creating voices event. - * * @private */ _staveCreated = (event) => { @@ -114,13 +112,12 @@ export class VFSystem extends HTMLElement { // Call createSystem to check whether this vf-system is ready to add its staves. this._createSystem(); - } + }; /** * Checks whether the vf-system has set up its System instance and all the * vf-stave children have dispatched events. If both of these conditions are * true, the staves are created and added to the system. - * * @private */ _createSystem() { diff --git a/src/vf-voice.js b/src/vf-voice.js index 3899f4d..186ac66 100644 --- a/src/vf-voice.js +++ b/src/vf-voice.js @@ -1,21 +1,19 @@ -// ## Description -// -// This file implements `vf-voice`, the web component that resembles -// the `Voice` element. -// `vf-voice` is responsible for generating and/or gathering -// all of the notes and beams that make up the voice, including those from its -// child components, which may be `vf-tuplet`s and `vf-beam`s. -// Once all the notes and beams are created, `vf-voice` dispatches an event to -// its parent `vf-stave` to signal that it's ready for the voice to be created -// the voice. - import Vex from 'vexflow'; import './vf-stave'; import ElementAddedEvent from './events/elementAddedEvent'; import VoiceReadyEvent from './events/voiceReadyEvent'; +/** + * Implements `vf-voice`, the web component that resembles VexFlow's `Voice` + * element. + * `vf-voice` is responsible for generating and/or gathering all of the notes + * and beams that make up the voice, including those from its child components, + * which may be `vf-tuplet`s and/or `vf-beam`s. + * Once all the notes and beams are created, `vf-voice` dispatches an event to + * its parent `vf-stave` to signal that it's ready for the voice to be created. + */ export class VFVoice extends HTMLElement { /** @@ -85,7 +83,7 @@ export class VFVoice extends HTMLElement { */ set vf(value) { this._vf = value; - this.createNotes(); + this._createNotes(); } /** @@ -98,14 +96,15 @@ export class VFVoice extends HTMLElement { */ set score(value) { this._score = value; - this.createNotes(); + this._createNotes(); } /** * Creates notes (and optionally, beams) from the text content of this * vf-voice element. + * @private */ - createNotes = () => { + _createNotes() { if (this._vf && this._score) { const notes = this._createNotesFromText(this.textContent.trim()); // Maintaining notes in an array to set-up for future child components From c21efd10de8c276315e4225e489cf688a72842e7 Mon Sep 17 00:00:00 2001 From: yanasang Date: Mon, 10 Aug 2020 10:15:11 -0400 Subject: [PATCH 3/3] Use a generic element ready event --- src/events/elementReadyEvent.js | 14 ++++++++++++++ src/events/staveReadyEvent.js | 13 ------------- src/events/systemReadyEvent.js | 13 ------------- src/events/voiceReadyEvent.js | 13 ------------- src/vf-score.js | 4 ++-- src/vf-stave.js | 7 +++---- src/vf-system.js | 10 +++------- src/vf-voice.js | 4 ++-- 8 files changed, 24 insertions(+), 54 deletions(-) create mode 100644 src/events/elementReadyEvent.js delete mode 100644 src/events/staveReadyEvent.js delete mode 100644 src/events/systemReadyEvent.js delete mode 100644 src/events/voiceReadyEvent.js diff --git a/src/events/elementReadyEvent.js b/src/events/elementReadyEvent.js new file mode 100644 index 0000000..db5a198 --- /dev/null +++ b/src/events/elementReadyEvent.js @@ -0,0 +1,14 @@ +// ## Description +// +// This file implements `ElementReadyEvent`, the event that child elements +// dispatch to their parent element when they have finished creating its elements. + +export default class ElementReadyEvent extends Event { + static staveReadyEventName = 'vf-stave-ready'; + static systemReadyEventName = 'vf-system-ready'; + static voiceReadyEventName = 'vf-voice-ready'; + + constructor(eventName) { + super(eventName, { bubbles: true }); + } +} \ No newline at end of file diff --git a/src/events/staveReadyEvent.js b/src/events/staveReadyEvent.js deleted file mode 100644 index b8a8ce7..0000000 --- a/src/events/staveReadyEvent.js +++ /dev/null @@ -1,13 +0,0 @@ -// ## Description -// -// This file implements `StaveReadyEvent`, the event that vf-stave dispatches -// to its parent (vf-system) when it has finished creating its voices and -// is ready to be added to the system. - -export default class StaveReadyEvent extends Event { - static eventName = 'vf-stave-ready'; - - constructor() { - super(StaveReadyEvent.eventName, { bubbles: true }); - } -} \ No newline at end of file diff --git a/src/events/systemReadyEvent.js b/src/events/systemReadyEvent.js deleted file mode 100644 index 7198a54..0000000 --- a/src/events/systemReadyEvent.js +++ /dev/null @@ -1,13 +0,0 @@ -// ## Description -// -// This file implements `SystemReadyEvent`, the event that vf-system dispatches -// to its parent (vf-score) when it has finished added its staves and -// is ready to be drawn. - -export default class SystemReadyEvent extends Event { - static eventName = 'vf-system-ready'; - - constructor() { - super(SystemReadyEvent.eventName, { bubbles: true }); - } -} \ No newline at end of file diff --git a/src/events/voiceReadyEvent.js b/src/events/voiceReadyEvent.js deleted file mode 100644 index 991ac46..0000000 --- a/src/events/voiceReadyEvent.js +++ /dev/null @@ -1,13 +0,0 @@ -// ## Description -// -// This file implements `VoiceReadyEvent`, the event that vf-voice dispatches -// to its parent (vf-stave) when it has finished creating its notes & beams and -// is ready to be added to the stave. - -export default class VoiceReadyEvent extends Event { - static eventName = 'vf-voice-ready'; - - constructor() { - super(VoiceReadyEvent.eventName, { bubbles: true }); - } -} \ No newline at end of file diff --git a/src/vf-score.js b/src/vf-score.js index 1ceb1e9..d97151b 100644 --- a/src/vf-score.js +++ b/src/vf-score.js @@ -1,8 +1,8 @@ import Vex from 'vexflow'; import ElementAddedEvent from './events/elementAddedEvent'; +import ElementReadyEvent from './events/elementReadyEvent'; import StaveAddedEvent from './events/staveAddedEvent'; -import SystemReadyEvent from './events/systemReadyEvent'; /** * Implements the `vf-score` web component, which acts as the container for @@ -98,7 +98,7 @@ export class VFScore extends HTMLElement { // finished creating and adding its staves. vf-score listens to this event // so that it can add that it can detect when the vf-system is ready to // be drawn. - this.addEventListener(SystemReadyEvent.eventName, this._systemCreated); + this.addEventListener(ElementReadyEvent.systemReadyEventName, this._systemCreated); // The 'vf-element-added' event is dispatched by all the child elements // when they are added to the DOM. vf-score listens to these events so that diff --git a/src/vf-stave.js b/src/vf-stave.js index d99360a..511c89b 100644 --- a/src/vf-stave.js +++ b/src/vf-stave.js @@ -1,8 +1,7 @@ import './vf-score'; import ElementAddedEvent from './events/elementAddedEvent'; +import ElementReadyEvent from './events/elementReadyEvent'; import StaveAddedEvent from './events/staveAddedEvent'; -import VoiceReadyEvent from './events/voiceReadyEvent'; -import StaveReadyEvent from './events/staveReadyEvent'; /** * Implements `vf-stave`, the web component that resembles VexFlow's `Stave` @@ -49,7 +48,7 @@ export class VFStave extends HTMLElement { // The 'vf-voice-ready' event is dispatched by a vf-voice when it has // finished generating its notes. vf-stave listens to this event so that it // can get that vf-voice's notes and generate a Voice from it. - this.addEventListener(VoiceReadyEvent.eventName, this.addVoice); + this.addEventListener(ElementReadyEvent.voiceReadyEventName, this.addVoice); // The 'vf-element-ready' event is dispatched by a vf-voice when it's added // to the DOM. vf-stave listens to this event so that it can set the vf-voice's @@ -195,7 +194,7 @@ export class VFStave extends HTMLElement { * @private */ _staveCreated() { - this.dispatchEvent(new StaveReadyEvent()); + this.dispatchEvent(new ElementReadyEvent(ElementReadyEvent.staveReadyEventName)); } /** diff --git a/src/vf-system.js b/src/vf-system.js index d043af5..7376b8a 100644 --- a/src/vf-system.js +++ b/src/vf-system.js @@ -1,7 +1,6 @@ import './vf-score'; import ElementAddedEvent from './events/elementAddedEvent'; -import StaveReadyEvent from './events/staveReadyEvent'; -import SystemReadyEvent from './events/systemReadyEvent'; +import ElementReadyEvent from './events/elementReadyEvent'; /** * Implements the`vf-system` web component, the web component that resembles @@ -40,7 +39,7 @@ export class VFSystem extends HTMLElement { // generating its voices. vf-system listens to this event so that it can add // that vf-staves information to the staveToVoiceMap and update the // numStaves counter. - this.addEventListener(StaveReadyEvent.eventName, this._staveCreated); + this.addEventListener(ElementReadyEvent.staveReadyEventName, this._staveCreated); } connectedCallback() { @@ -160,10 +159,7 @@ export class VFSystem extends HTMLElement { } // Tells parent (vf-score) that this system has finished adding its staves - // const systemCreatedEvent = new CustomEvent('systemCreated', { bubbles: true }); - // this.dispatchEvent(systemCreatedEvent); - - this.dispatchEvent(new SystemReadyEvent()); + this.dispatchEvent(new ElementReadyEvent(ElementReadyEvent.systemReadyEventName)); } } } diff --git a/src/vf-voice.js b/src/vf-voice.js index 186ac66..65729a7 100644 --- a/src/vf-voice.js +++ b/src/vf-voice.js @@ -3,7 +3,7 @@ import Vex from 'vexflow'; import './vf-stave'; import ElementAddedEvent from './events/elementAddedEvent'; -import VoiceReadyEvent from './events/voiceReadyEvent'; +import ElementReadyEvent from './events/elementReadyEvent'; /** * Implements `vf-voice`, the web component that resembles VexFlow's `Voice` @@ -114,7 +114,7 @@ export class VFVoice extends HTMLElement { this.beams.push(...this._autoGenerateBeams(notes)); } - this.dispatchEvent(new VoiceReadyEvent(this.notes, this.beams)); + this.dispatchEvent(new ElementReadyEvent(ElementReadyEvent.voiceReadyEventName)); } }