localize 2.0

custom-elements-manifest.config.js

@@ -1,5 +1,5 @@
 import fs from 'fs';
-import commentParser from 'comment-parser';
+import { parse } from 'comment-parser';
 import pascalCase from 'pascal-case';
 
 const packageData = JSON.parse(fs.readFileSync('./package.json', 'utf8'));
@@ -39,7 +39,7 @@ export default {
               });
             });
 
-            const parsed = commentParser.parse(customComments + '\n */');
+            const parsed = parse(customComments + '\n */');
             parsed[0].tags?.map(t => {
               switch (t.tag) {
                 // Animations

package.json

@@ -42,6 +42,7 @@
     "@lit-labs/react": "^1.0.1",
     "@popperjs/core": "^2.7.0",
     "@shoelace-style/animations": "^1.1.0",
+    "@shoelace-style/localize": "^2.0.0",
     "color": "^4.0.2",
     "lit": "^2.0.2",
     "qr-creator": "^1.0.0"

scripts/build.js

@@ -48,6 +48,8 @@ mkdirp.sync(outdir);
         './src/shoelace.ts',
         // Components
         ...(await glob('./src/components/**/!(*.(style|test)).ts')),
+        // Translations
+        ...(await glob('./src/translations/**/*.ts')),
         // Public utilities
         ...(await glob('./src/utilities/**/!(*.(style|test)).ts')),
         // Theme stylesheets

src/components/color-picker/color-picker.ts

@@ -7,6 +7,7 @@ import { styleMap } from 'lit/directives/style-map.js';
 import { emit } from '../../internal/event';
 import { watch } from '../../internal/watch';
 import { clamp } from '../../internal/math';
+import { LocalizeController } from '../../utilities/localize';
 import type SlDropdown from '../dropdown/dropdown';
 import type SlInput from '../input/input';
 import color from 'color';
@@ -56,6 +57,7 @@ const hasEyeDropper = 'EyeDropper' in window;
 @customElement('sl-color-picker')
 export default class SlColorPicker extends LitElement {
   static styles = styles;
+  private localize = new LocalizeController(this);
 
   @query('[part="input"]') input: SlInput;
   @query('[part="preview"]') previewButton: HTMLButtonElement;
@@ -136,6 +138,9 @@ export default class SlColorPicker extends LitElement {
     '#fff'
   ];
 
+  /** The locale to render the component in. */
+  @property() lang: string;
+
   connectedCallback() {
     super.connectedCallback();
 
@@ -627,7 +632,6 @@ export default class SlColorPicker extends LitElement {
     const x = this.saturation;
     const y = 100 - this.lightness;
 
-    // TODO - i18n for format, copy, and eye dropper buttons
     const colorPicker = html`
       <div
         part="base"
@@ -730,7 +734,7 @@ export default class SlColorPicker extends LitElement {
             type="button"
             part="preview"
             class="color-picker__preview color-picker__transparent-bg"
-            aria-label="Copy"
+            aria-label=${this.localize.term('copy')}
             style=${styleMap({
               '--preview-color': `hsla(${this.hue}deg, ${this.saturation}%, ${this.lightness}%, ${this.alpha / 100})`
             })}
@@ -757,7 +761,7 @@ export default class SlColorPicker extends LitElement {
             ${!this.noFormatToggle
               ? html`
                   <sl-button
-                    aria-label="Change format"
+                    aria-label=${this.localize.term('toggle_color_format')}
                     exportparts="base:format-button"
                     @click=${this.handleFormatToggle}
                   >
@@ -768,7 +772,11 @@ export default class SlColorPicker extends LitElement {
             ${hasEyeDropper
               ? html`
                   <sl-button exportparts="base:eye-dropper-button" @click=${this.handleEyeDropper}>
-                    <sl-icon library="system" name="eyedropper" label="Select a color from the screen"></sl-icon>
+                    <sl-icon
+                      library="system"
+                      name="eyedropper"
+                      label=${this.localize.term('select_a_color_from_the_screen')}
+                    ></sl-icon>
                   </sl-button>
                 `
               : ''}

src/components/progress-bar/progress-bar.ts

@@ -3,6 +3,7 @@ import { customElement, property } from 'lit/decorators.js';
 import { ifDefined } from 'lit/directives/if-defined.js';
 import { classMap } from 'lit/directives/class-map.js';
 import { styleMap } from 'lit/directives/style-map.js';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './progress-bar.styles';
 
 /**
@@ -23,6 +24,7 @@ import styles from './progress-bar.styles';
 @customElement('sl-progress-bar')
 export default class SlProgressBar extends LitElement {
   static styles = styles;
+  private localize = new LocalizeController(this);
 
   /** The current progress, 0 to 100. */
   @property({ type: Number, reflect: true }) value = 0;
@@ -30,8 +32,11 @@ export default class SlProgressBar extends LitElement {
   /** When true, percentage is ignored, the label is hidden, and the progress bar is drawn in an indeterminate state. */
   @property({ type: Boolean, reflect: true }) indeterminate = false;
 
-  /** The progress bar's aria label. */
+  /** A custom label for the progress bar's aria label. */
-  @property() label = 'Progress'; // TODO - i18n
+  @property() label: string;
+
+  /** The locale to render the component in. */
+  @property() lang: string;
 
   render() {
     return html`
@@ -43,7 +48,7 @@ export default class SlProgressBar extends LitElement {
         })}
         role="progressbar"
         title=${ifDefined(this.title)}
-        aria-label=${ifDefined(this.label)}
+        aria-label=${this.label || this.localize.term('progress')}
         aria-valuemin="0"
         aria-valuemax="100"
         aria-valuenow=${this.indeterminate ? 0 : this.value}

src/components/progress-ring/progress-ring.ts

@@ -1,6 +1,6 @@
 import { LitElement, html } from 'lit';
 import { customElement, property, query, state } from 'lit/decorators.js';
-import { ifDefined } from 'lit/directives/if-defined.js';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './progress-ring.styles';
 
 /**
@@ -20,6 +20,7 @@ import styles from './progress-ring.styles';
 @customElement('sl-progress-ring')
 export default class SlProgressRing extends LitElement {
   static styles = styles;
+  private localize = new LocalizeController(this);
 
   @query('.progress-ring__indicator') indicator: SVGCircleElement;
 
@@ -28,8 +29,11 @@ export default class SlProgressRing extends LitElement {
   /** The current progress, 0 to 100. */
   @property({ type: Number, reflect: true }) value = 0;
 
-  /** The progress ring's aria label. */
+  /** A custom label for the progress ring's aria label. */
-  @property() label = 'Progress'; // TODO - i18n
+  @property() label: string;
+
+  /** The locale to render the component in. */
+  @property() lang: string;
 
   updated(changedProps: Map<string, any>) {
     super.updated(changedProps);
@@ -54,7 +58,7 @@ export default class SlProgressRing extends LitElement {
         part="base"
         class="progress-ring"
         role="progressbar"
-        aria-label=${ifDefined(this.label)}
+        aria-label=${this.label || this.localize.term('progress')}
         aria-valuemin="0"
         aria-valuemax="100"
         aria-valuenow="${this.value}"

src/components/tab-group/tab-group.ts

@@ -5,6 +5,7 @@ import { emit } from '../../internal/event';
 import { watch } from '../../internal/watch';
 import { getOffset } from '../../internal/offset';
 import { scrollIntoView } from '../../internal/scroll';
+import { LocalizeController } from '../../utilities/localize';
 import type SlTab from '../tab/tab';
 import type SlTabPanel from '../tab-panel/tab-panel';
 import styles from './tab-group.styles';
@@ -36,6 +37,7 @@ import '../icon-button/icon-button';
 @customElement('sl-tab-group')
 export default class SlTabGroup extends LitElement {
   static styles = styles;
+  private localize = new LocalizeController(this);
 
   @query('.tab-group') tabGroup: HTMLElement;
   @query('.tab-group__body') body: HTMLElement;
@@ -62,6 +64,9 @@ export default class SlTabGroup extends LitElement {
   /** Disables the scroll arrows that appear when tabs overflow. */
   @property({ attribute: 'no-scroll-controls', type: Boolean }) noScrollControls = false;
 
+  /** The locale to render the component in. */
+  @property() lang: string;
+
   connectedCallback() {
     super.connectedCallback();
 
@@ -339,7 +344,6 @@ export default class SlTabGroup extends LitElement {
     this.syncIndicator();
   }
 
-  // TODO - i18n scroll to start/end labels
   render() {
     return html`
       <div
@@ -363,7 +367,7 @@ export default class SlTabGroup extends LitElement {
                   exportparts="base:scroll-button"
                   name="chevron-left"
                   library="system"
-                  label="Scroll to start"
+                  label=${this.localize.term('scroll_to_start')}
                   @click=${this.handleScrollToStart}
                 ></sl-icon-button>
               `
@@ -383,7 +387,7 @@ export default class SlTabGroup extends LitElement {
                   exportparts="base:scroll-button"
                   name="chevron-right"
                   library="system"
-                  label="Scroll to end"
+                  label=${this.localize.term('scroll_to_end')}
                   @click=${this.handleScrollToEnd}
                 ></sl-icon-button>
               `

src/components/tab/tab.ts

@@ -2,6 +2,7 @@ import { LitElement, html } from 'lit';
 import { customElement, property, query } from 'lit/decorators.js';
 import { classMap } from 'lit/directives/class-map.js';
 import { emit } from '../../internal/event';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './tab.styles';
 
 import '../icon-button/icon-button';
@@ -24,6 +25,7 @@ let id = 0;
 @customElement('sl-tab')
 export default class SlTab extends LitElement {
   static styles = styles;
+  private localize = new LocalizeController(this);
 
   @query('.tab') tab: HTMLElement;
 
@@ -41,6 +43,9 @@ export default class SlTab extends LitElement {
   /** Draws the tab in a disabled state. */
   @property({ type: Boolean, reflect: true }) disabled = false;
 
+  /** The locale to render the component in. */
+  @property() lang: string;
+
   /** Sets focus to the tab. */
   focus(options?: FocusOptions) {
     this.tab.focus(options);
@@ -59,7 +64,6 @@ export default class SlTab extends LitElement {
     // If the user didn't provide an ID, we'll set one so we can link tabs and tab panels with aria labels
     this.id = this.id || this.componentId;
 
-    // TODO - i18n close label
     return html`
       <div
         part="base"
@@ -80,7 +84,7 @@ export default class SlTab extends LitElement {
               <sl-icon-button
                 name="x"
                 library="system"
-                label="Close"
+                label=${this.localize.term('close')}
                 exportparts="base:close-button"
                 class="tab__close-button"
                 @click=${this.handleCloseClick}

src/translations/en.ts

@@ -0,0 +1,20 @@
+import { registerTranslation } from '../utilities/localize';
+import type { Translation } from '../utilities/localize';
+
+const translation: Translation = {
+  $code: 'en',
+  $name: 'English',
+  $dir: 'ltr',
+
+  close: 'Close',
+  copy: 'Copy',
+  progress: 'Progress',
+  scroll_to_end: 'Scroll to end',
+  scroll_to_start: 'Scroll to start',
+  select_a_color_from_the_screen: 'Select a color from the screen',
+  toggle_color_format: 'Toggle color format'
+};
+
+registerTranslation(translation);
+
+export default translation;

src/translations/es.ts

@@ -0,0 +1,20 @@
+import { registerTranslation } from '../utilities/localize';
+import type { Translation } from '../utilities/localize';
+
+const translation: Translation = {
+  $code: 'es',
+  $name: 'Español',
+  $dir: 'ltr',
+
+  close: 'Cerrar',
+  copy: 'Copiar',
+  progress: 'Progreso',
+  scroll_to_end: 'Desplazarse hasta el final',
+  scroll_to_start: 'Desplácese para comenzar',
+  select_a_color_from_the_screen: 'Seleccione un color de la pantalla',
+  toggle_color_format: 'Alternar formato de color'
+};
+
+registerTranslation(translation);
+
+export default translation;

src/utilities/localize.ts

@@ -0,0 +1,5 @@
+// Register English as the default/fallback language
+import '../translations/en';
+
+// Export functions from the localize lib so we have one central place to import them from
+export * from '@shoelace-style/localize';