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fix: use our own custom element implementation (#170)
Fixes #176
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| import sass from 'sass' | ||
| import csso from 'csso' | ||
|
|
||
| export function buildStyles () { | ||
| const file = './src/picker/styles/picker.scss' | ||
| const css = sass.renderSync({ file, outputStyle: 'compressed' }).css.toString('utf8') | ||
| return csso.minify(css).css | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,51 +1,120 @@ | ||
| import SveltePicker from './components/Picker/Picker.svelte' | ||
| import { DEFAULT_DATA_SOURCE, DEFAULT_LOCALE } from '../database/constants' | ||
| import { runAll } from './utils/runAll' | ||
| import { DEFAULT_CATEGORY_SORTING, DEFAULT_SKIN_TONE_EMOJI } from './constants' | ||
| import enI18n from '../picker/i18n/en.js' | ||
| import styles from 'emoji-picker-element-styles' | ||
| import Database from './ImportedDatabase' | ||
|
|
||
| export default class PickerElement extends SveltePicker { | ||
| export default class PickerElement extends HTMLElement { | ||
| constructor (props) { | ||
| performance.mark('initialLoad') | ||
| // Make the API simpler, directly pass in the props | ||
| super({ | ||
| props: { | ||
| // Set defaults | ||
| locale: DEFAULT_LOCALE, | ||
| dataSource: DEFAULT_DATA_SOURCE, | ||
| ...props | ||
| } | ||
| super() | ||
| this.attachShadow({ mode: 'open' }) | ||
| const style = document.createElement('style') | ||
| style.textContent = styles | ||
| this.shadowRoot.appendChild(style) | ||
| this._ctx = { | ||
| // Set defaults | ||
| locale: DEFAULT_LOCALE, | ||
| dataSource: DEFAULT_DATA_SOURCE, | ||
| skinToneEmoji: DEFAULT_SKIN_TONE_EMOJI, | ||
| customCategorySorting: DEFAULT_CATEGORY_SORTING, | ||
| customEmoji: null, | ||
| i18n: enI18n, | ||
| ...props | ||
| } | ||
| this._dbFlush() // wait for a flush before creating the db, in case the user calls e.g. a setter or setAttribute | ||
| } | ||
|
|
||
| connectedCallback () { | ||
| this._cmp = new SveltePicker({ | ||
| target: this.shadowRoot, | ||
| props: this._ctx | ||
| }) | ||
| } | ||
|
|
||
| disconnectedCallback () { | ||
| // For Svelte v <3.33.0, we have to run the destroy logic ourselves because it doesn't have this fix: | ||
| // https://github.com/sveltejs/svelte/commit/d4f98f | ||
| // We can safely just run on_disconnect and on_destroy to cover all versions of Svelte. In older versions | ||
| // the on_destroy array will have length 1, whereas in more recent versions it'll be on_disconnect instead. | ||
| // TODO: remove this when we drop support for Svelte < 3.33.0 | ||
| runAll(this.$$.on_destroy) | ||
| runAll(this.$$.on_disconnect) | ||
| this._cmp.$destroy() | ||
| this._cmp = undefined | ||
|
|
||
| const { database } = this._ctx | ||
| if (database) { | ||
| database.close() | ||
| // only happens if the database failed to load in the first place, so we don't care) | ||
| .catch(err => console.error(err)) | ||
| } | ||
| } | ||
|
|
||
| static get observedAttributes () { | ||
| return ['locale', 'data-source', 'skin-tone-emoji'] // complex objects aren't supported, also use kebab-case | ||
| } | ||
|
|
||
| // via https://github.com/sveltejs/svelte/issues/3852#issuecomment-665037015 | ||
| attributeChangedCallback (attrName, oldValue, newValue) { | ||
| super.attributeChangedCallback( | ||
| // convert from kebab-case to camelcase | ||
| // see https://github.com/sveltejs/svelte/issues/3852#issuecomment-665037015 | ||
| this._set( | ||
| attrName.replace(/-([a-z])/g, (_, up) => up.toUpperCase()), | ||
| oldValue, | ||
| newValue | ||
| ) | ||
| } | ||
|
|
||
| get database () { | ||
| return super.database | ||
| _set (prop, newValue) { | ||
| this._ctx[prop] = newValue | ||
| if (this._cmp) { | ||
| this._cmp.$set({ [prop]: newValue }) | ||
| } | ||
| if (['locale', 'dataSource'].includes(prop)) { | ||
| this._dbFlush() | ||
| } | ||
| } | ||
|
|
||
| set database (val) { | ||
| throw new Error('database is read-only') | ||
| _dbCreate () { | ||
| const { locale, dataSource, database } = this._ctx | ||
| // only create a new database if we really need to | ||
| if (!database || database.locale !== locale || database.dataSource !== dataSource) { | ||
| this._set('database', new Database({ locale, dataSource })) | ||
| } | ||
| } | ||
|
|
||
| // Update the Database in one microtask if the locale/dataSource change. We do one microtask | ||
| // so we don't create two Databases if e.g. both the locale and the dataSource change | ||
| _dbFlush () { | ||
| Promise.resolve().then(() => ( | ||
| this._dbCreate() | ||
| )) | ||
| } | ||
| } | ||
|
|
||
| const props = [ | ||
| 'customEmoji', | ||
| 'customCategorySorting', | ||
| 'database', | ||
| 'dataSource', | ||
| 'i18n', | ||
| 'locale', | ||
| 'skinToneEmoji' | ||
| ] | ||
| const definitions = {} | ||
|
|
||
| for (const prop of props) { | ||
| definitions[prop] = { | ||
| get () { | ||
| if (prop === 'database') { | ||
| // in rare cases, the microtask may not be flushed yet, so we need to instantiate the DB | ||
| // now if the user is asking for it | ||
| this._dbCreate() | ||
| } | ||
| return this._ctx[prop] | ||
| }, | ||
| set (val) { | ||
| if (prop === 'database') { | ||
| throw new Error('database is read-only') | ||
| } | ||
| this._set(prop, val) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| Object.defineProperties(PickerElement.prototype, definitions) | ||
|
|
||
| customElements.define('emoji-picker', PickerElement) |
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