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Add Conductors for managing multiple elements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| import BoosterFactory from './boosterFactory.js'; | ||
| import {loadStrategies} from './loadStrategies.js'; | ||
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| export default class BoosterConductor extends BoosterFactory { | ||
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| registered = []; // ALL registered conductors | ||
| loaded = []; // Only loaded conductor instances | ||
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| constructor(extension='booster', conductors = []) { | ||
| super(extension); | ||
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| // register any conductors defined in the config | ||
| this.defaults = { | ||
| conductors: conductors, | ||
| } | ||
| this.config = { | ||
| ...this.defaults, | ||
| ...this.config | ||
| }; | ||
| this.config.conductors.forEach(conductor => { | ||
| this.register(conductor); | ||
| }); | ||
| } | ||
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| mount() { | ||
| htmx.on('htmx:afterSettle', (htmxEvent) => { | ||
| htmx.config.currentTargetId = htmxEvent.target.id; | ||
| for (const [key, entry] of Object.entries(this.registered)) { | ||
| this.lifeCycle(entry); | ||
| } | ||
| }); | ||
| htmx.on('htmx:historyRestore', (htmxEvent) => { | ||
| htmx.config.currentTargetId = null; | ||
| for (const [key, entry] of Object.entries(this.registered)) { | ||
| this.lifeCycle(entry); | ||
| } | ||
| }); | ||
| } | ||
|
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| unmount(/* @vite-ignore */) {} | ||
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| /** | ||
| * Manage the conductor lifecycle | ||
| * | ||
| * @param {object} entry | ||
| */ | ||
| lifeCycle(entry) { | ||
| if (entry.conductor in this.loaded) { | ||
| // Conductor has already been loaded | ||
| if (entry.selector) { | ||
| // If the conductor must match a selector, | ||
| // mount/unmount as necessary if found in DOM | ||
| if (document.querySelector(entry.selector)) { | ||
| if (this.loaded[entry.conductor].mounted) { | ||
| this.loaded[entry.conductor].refresh(); | ||
| } else { | ||
| this.loaded[entry.conductor].mount(); | ||
| this.loaded[entry.conductor].mounted = true; | ||
| } | ||
| } else if (this.loaded[entry.conductor].mounted) { | ||
| this.loaded[entry.conductor].unmount(); | ||
| this.loaded[entry.conductor].mounted = false; | ||
| } | ||
| } | ||
| } else { | ||
| // Not loaded yet | ||
| if (entry.selector) { | ||
| if (document.querySelector(entry.selector)) { | ||
| // we matched selector in the DOM, so load the entry | ||
| this.lazyload(entry); | ||
| } | ||
| } else { | ||
| // load immediately (only once) | ||
| this.lazyload(entry); | ||
| } | ||
| } | ||
| } | ||
|
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| /** | ||
| * Register a conductor | ||
| * | ||
| * @param entry | ||
| * @param {string} conductor | ||
| * @param {string | null} selector | ||
| * @param {string | null} strategy | ||
| * @param {number} version | ||
| */ | ||
| register(entry, {conductor, selector=null, strategy='eager', version=1}=entry) { | ||
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| // register conductor | ||
| this.registered.push(entry); | ||
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| // lazyload | ||
| this.lifeCycle(entry); | ||
| } | ||
|
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| /** | ||
| * Import a conductor and run its constructor | ||
| * We'll use lazy loading for the chunk file | ||
| * | ||
| * @param {object} entry | ||
| */ | ||
| lazyload(entry) { | ||
| let promises = loadStrategies(entry.strategy, entry.selector); | ||
| Promise.all(promises).then(() => { | ||
| import(/* @vite-ignore */ `${this.config.origin}/${this.config.basePath}/${entry.conductor}.js?v=${entry.version}`).then((lazyConductor) => { | ||
| this.loaded[entry.conductor] = new lazyConductor.default(entry.selector); | ||
| this.loaded[entry.conductor].mounted = true; | ||
| }); | ||
| }); | ||
| } | ||
| } |
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