fixes #784

docs/getting-started/customizing.md

@@ -108,7 +108,7 @@ Not all components expose CSS custom properties. For those that do, they can be
 
 Some components use animation, such as when a dialog is shown or hidden. Animations are performed using the [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API) rather than CSS. However, you can still customize them through Shoelace's animation registry. If a component has customizable animations, they'll be listed in the "Animation" section of its documentation.
 
-To customize a default animation, use the `setDefaultAnimation()` method. The function accepts an animation name (found in the component's docs) and an object with `keyframes` and `options` or `null` to disable the animation.
+To customize a default animation, use the `setDefaultAnimation()` method. The function accepts an animation name (found in the component's docs) and an object with `keyframes`, and `options` or `null` to disable the animation.
 
 This example will make all dialogs use a custom show animation.
 
@@ -127,6 +127,8 @@ setDefaultAnimation('dialog.show', {
 });
 ```
 
+?> To support RTL languages in your animation, you can pass an additional property called `rtlKeyframes`. This property shares the same type as `keyframes` and will be automatically used when the component's directionality is RTL. If `rtlKeyframes` is not provided, `keyframes` will be used as a fallback.
+
 If you only want to target a single component, use the `setAnimation()` method instead. This function accepts an element, an animation name, and an object comprised of animation `keyframes` and `options`.
 
 In this example, only the target dialog will use a custom show animation.

docs/resources/changelog.md

@@ -8,6 +8,8 @@ _During the beta period, these restrictions may be relaxed in the event of a mis
 
 ## Next
 
+- Added support for RTL animations in the Animation Registry
+- Improved RTL animations for `<sl-drawer>` [#784](https://github.com/shoelace-style/shoelace/issues/784)
 - Improved RTL styles for `<sl-button-group>` [#783](https://github.com/shoelace-style/shoelace/issues/783)
 - Improved RTL styles for the toast stack [#785](https://github.com/shoelace-style/shoelace/issues/785)
 

src/components/alert/alert.ts

@@ -7,6 +7,7 @@ import { emit, waitForEvent } from '../../internal/event';
 import { HasSlotController } from '../../internal/slot';
 import { watch } from '../../internal/watch';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './alert.styles';
 
 const toastStack = Object.assign(document.createElement('div'), { className: 'sl-toast-stack' });
@@ -43,6 +44,7 @@ export default class SlAlert extends LitElement {
 
   private autoHideTimeout: number;
   private readonly hasSlotController = new HasSlotController(this, 'icon', 'suffix');
+  private readonly localize = new LocalizeController(this);
 
   @query('[part="base"]') base: HTMLElement;
 
@@ -148,7 +150,7 @@ export default class SlAlert extends LitElement {
 
       await stopAnimations(this.base);
       this.base.hidden = false;
-      const { keyframes, options } = getAnimation(this, 'alert.show');
+      const { keyframes, options } = getAnimation(this, 'alert.show', { dir: this.localize.dir() });
       await animateTo(this.base, keyframes, options);
 
       emit(this, 'sl-after-show');
@@ -159,7 +161,7 @@ export default class SlAlert extends LitElement {
       clearTimeout(this.autoHideTimeout);
 
       await stopAnimations(this.base);
-      const { keyframes, options } = getAnimation(this, 'alert.hide');
+      const { keyframes, options } = getAnimation(this, 'alert.hide', { dir: this.localize.dir() });
       await animateTo(this.base, keyframes, options);
       this.base.hidden = true;
 

src/components/details/details.ts

@@ -6,6 +6,7 @@ import { animateTo, shimKeyframesHeightAuto, stopAnimations } from '../../intern
 import { emit, waitForEvent } from '../../internal/event';
 import { watch } from '../../internal/watch';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './details.styles';
 
 /**
@@ -39,6 +40,8 @@ export default class SlDetails extends LitElement {
   @query('.details__header') header: HTMLElement;
   @query('.details__body') body: HTMLElement;
 
+  private readonly localize = new LocalizeController(this);
+
   /** Indicates whether or not the details is open. You can use this in lieu of the show/hide methods. */
   @property({ type: Boolean, reflect: true }) open = false;
 
@@ -116,7 +119,7 @@ export default class SlDetails extends LitElement {
       await stopAnimations(this.body);
       this.body.hidden = false;
 
-      const { keyframes, options } = getAnimation(this, 'details.show');
+      const { keyframes, options } = getAnimation(this, 'details.show', { dir: this.localize.dir() });
       await animateTo(this.body, shimKeyframesHeightAuto(keyframes, this.body.scrollHeight), options);
       this.body.style.height = 'auto';
 
@@ -127,7 +130,7 @@ export default class SlDetails extends LitElement {
 
       await stopAnimations(this.body);
 
-      const { keyframes, options } = getAnimation(this, 'details.hide');
+      const { keyframes, options } = getAnimation(this, 'details.hide', { dir: this.localize.dir() });
       await animateTo(this.body, shimKeyframesHeightAuto(keyframes, this.body.scrollHeight), options);
       this.body.hidden = true;
       this.body.style.height = 'auto';

src/components/dialog/dialog.ts

@@ -129,7 +129,7 @@ export default class SlDialog extends LitElement {
     });
 
     if (slRequestClose.defaultPrevented) {
-      const animation = getAnimation(this, 'dialog.denyClose');
+      const animation = getAnimation(this, 'dialog.denyClose', { dir: this.localize.dir() });
       animateTo(this.panel, animation.keyframes, animation.options);
       return;
     }
@@ -187,8 +187,8 @@ export default class SlDialog extends LitElement {
         }
       });
 
-      const panelAnimation = getAnimation(this, 'dialog.show');
-      const overlayAnimation = getAnimation(this, 'dialog.overlay.show');
+      const panelAnimation = getAnimation(this, 'dialog.show', { dir: this.localize.dir() });
+      const overlayAnimation = getAnimation(this, 'dialog.overlay.show', { dir: this.localize.dir() });
       await Promise.all([
         animateTo(this.panel, panelAnimation.keyframes, panelAnimation.options),
         animateTo(this.overlay, overlayAnimation.keyframes, overlayAnimation.options)
@@ -201,8 +201,8 @@ export default class SlDialog extends LitElement {
       this.modal.deactivate();
 
       await Promise.all([stopAnimations(this.dialog), stopAnimations(this.overlay)]);
-      const panelAnimation = getAnimation(this, 'dialog.hide');
-      const overlayAnimation = getAnimation(this, 'dialog.overlay.hide');
+      const panelAnimation = getAnimation(this, 'dialog.hide', { dir: this.localize.dir() });
+      const overlayAnimation = getAnimation(this, 'dialog.overlay.hide', { dir: this.localize.dir() });
       await Promise.all([
         animateTo(this.panel, panelAnimation.keyframes, panelAnimation.options),
         animateTo(this.overlay, overlayAnimation.keyframes, overlayAnimation.options)

src/components/drawer/drawer.styles.ts

@@ -15,7 +15,7 @@ export default css`
 
   .drawer {
     top: 0;
-    left: 0;
+    inset-inline-start: 0;
     width: 100%;
     height: 100%;
     pointer-events: none;
@@ -52,36 +52,36 @@ export default css`
 
   .drawer--top .drawer__panel {
     top: 0;
-    right: auto;
+    inset-inline-end: auto;
     bottom: auto;
-    left: 0;
+    inset-inline-start: 0;
     width: 100%;
     height: var(--size);
   }
 
   .drawer--end .drawer__panel {
     top: 0;
-    right: 0;
+    inset-inline-end: 0;
     bottom: auto;
-    left: auto;
+    inset-inline-start: auto;
     width: var(--size);
     height: 100%;
   }
 
   .drawer--bottom .drawer__panel {
     top: auto;
-    right: auto;
+    inset-inline-end: auto;
     bottom: 0;
-    left: 0;
+    inset-inline-start: 0;
     width: 100%;
     height: var(--size);
   }
 
   .drawer--start .drawer__panel {
     top: 0;
-    right: auto;
+    inset-inline-end: auto;
     bottom: auto;
-    left: 0;
+    inset-inline-start: 0;
     width: var(--size);
     height: 100%;
   }

src/components/drawer/drawer.ts

@@ -146,7 +146,7 @@ export default class SlDrawer extends LitElement {
     });
 
     if (slRequestClose.defaultPrevented) {
-      const animation = getAnimation(this, 'drawer.denyClose');
+      const animation = getAnimation(this, 'drawer.denyClose', { dir: this.localize.dir() });
       animateTo(this.panel, animation.keyframes, animation.options);
       return;
     }
@@ -207,8 +207,10 @@ export default class SlDrawer extends LitElement {
         }
       });
 
-      const panelAnimation = getAnimation(this, `drawer.show${uppercaseFirstLetter(this.placement)}`);
-      const overlayAnimation = getAnimation(this, 'drawer.overlay.show');
+      const panelAnimation = getAnimation(this, `drawer.show${uppercaseFirstLetter(this.placement)}`, {
+        dir: this.localize.dir()
+      });
+      const overlayAnimation = getAnimation(this, 'drawer.overlay.show', { dir: this.localize.dir() });
       await Promise.all([
         animateTo(this.panel, panelAnimation.keyframes, panelAnimation.options),
         animateTo(this.overlay, overlayAnimation.keyframes, overlayAnimation.options)
@@ -222,8 +224,10 @@ export default class SlDrawer extends LitElement {
       unlockBodyScrolling(this);
 
       await Promise.all([stopAnimations(this.drawer), stopAnimations(this.overlay)]);
-      const panelAnimation = getAnimation(this, `drawer.hide${uppercaseFirstLetter(this.placement)}`);
-      const overlayAnimation = getAnimation(this, 'drawer.overlay.hide');
+      const panelAnimation = getAnimation(this, `drawer.hide${uppercaseFirstLetter(this.placement)}`, {
+        dir: this.localize.dir()
+      });
+      const overlayAnimation = getAnimation(this, 'drawer.overlay.hide', { dir: this.localize.dir() });
       await Promise.all([
         animateTo(this.panel, panelAnimation.keyframes, panelAnimation.options),
         animateTo(this.overlay, overlayAnimation.keyframes, overlayAnimation.options)
@@ -255,6 +259,7 @@ export default class SlDrawer extends LitElement {
           'drawer--start': this.placement === 'start',
           'drawer--contained': this.contained,
           'drawer--fixed': !this.contained,
+          'drawer--rtl': this.localize.dir() === 'rtl',
           'drawer--has-footer': this.hasSlotController.test('footer')
         })}
         @keydown=${this.handleKeyDown}
@@ -328,6 +333,10 @@ setDefaultAnimation('drawer.showEnd', {
     { opacity: 0, transform: 'translateX(100%)' },
     { opacity: 1, transform: 'translateX(0)' }
   ],
+  rtlKeyframes: [
+    { opacity: 0, transform: 'translateX(-100%)' },
+    { opacity: 1, transform: 'translateX(0)' }
+  ],
   options: { duration: 250, easing: 'ease' }
 });
 
@@ -336,6 +345,10 @@ setDefaultAnimation('drawer.hideEnd', {
     { opacity: 1, transform: 'translateX(0)' },
     { opacity: 0, transform: 'translateX(100%)' }
   ],
+  rtlKeyframes: [
+    { opacity: 1, transform: 'translateX(0)' },
+    { opacity: 0, transform: 'translateX(-100%)' }
+  ],
   options: { duration: 250, easing: 'ease' }
 });
 
@@ -362,6 +375,10 @@ setDefaultAnimation('drawer.showStart', {
     { opacity: 0, transform: 'translateX(-100%)' },
     { opacity: 1, transform: 'translateX(0)' }
   ],
+  rtlKeyframes: [
+    { opacity: 0, transform: 'translateX(100%)' },
+    { opacity: 1, transform: 'translateX(0)' }
+  ],
   options: { duration: 250, easing: 'ease' }
 });
 
@@ -370,6 +387,10 @@ setDefaultAnimation('drawer.hideStart', {
     { opacity: 1, transform: 'translateX(0)' },
     { opacity: 0, transform: 'translateX(-100%)' }
   ],
+  rtlKeyframes: [
+    { opacity: 1, transform: 'translateX(0)' },
+    { opacity: 0, transform: 'translateX(100%)' }
+  ],
   options: { duration: 250, easing: 'ease' }
 });
 

src/components/dropdown/dropdown.ts

@@ -8,6 +8,7 @@ import { scrollIntoView } from '../../internal/scroll';
 import { getTabbableBoundary } from '../../internal/tabbable';
 import { watch } from '../../internal/watch';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './dropdown.styles';
 import type SlButton from '../../components/button/button';
 import type SlIconButton from '../../components/icon-button/icon-button';
@@ -41,6 +42,7 @@ export default class SlDropdown extends LitElement {
   @query('.dropdown__panel') panel: HTMLElement;
   @query('.dropdown__positioner') positioner: HTMLElement;
 
+  private readonly localize = new LocalizeController(this);
   private positionerCleanup: ReturnType<typeof autoUpdate> | undefined;
 
   /** Indicates whether or not the dropdown is open. You can use this in lieu of the show/hide methods. */
@@ -371,7 +373,7 @@ export default class SlDropdown extends LitElement {
       await stopAnimations(this);
       this.startPositioner();
       this.panel.hidden = false;
-      const { keyframes, options } = getAnimation(this, 'dropdown.show');
+      const { keyframes, options } = getAnimation(this, 'dropdown.show', { dir: this.localize.dir() });
       await animateTo(this.panel, keyframes, options);
 
       emit(this, 'sl-after-show');
@@ -381,7 +383,7 @@ export default class SlDropdown extends LitElement {
       this.removeOpenListeners();
 
       await stopAnimations(this);
-      const { keyframes, options } = getAnimation(this, 'dropdown.hide');
+      const { keyframes, options } = getAnimation(this, 'dropdown.hide', { dir: this.localize.dir() });
       await animateTo(this.panel, keyframes, options);
       this.panel.hidden = true;
       this.stopPositioner();

src/components/tooltip/tooltip.ts

@@ -6,6 +6,7 @@ import { animateTo, parseDuration, stopAnimations } from '../../internal/animate
 import { emit, waitForEvent } from '../../internal/event';
 import { watch } from '../../internal/watch';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry';
+import { LocalizeController } from '../../utilities/localize';
 import styles from './tooltip.styles';
 
 /**
@@ -39,6 +40,7 @@ export default class SlTooltip extends LitElement {
 
   private target: HTMLElement;
   private hoverTimeout: number;
+  private readonly localize = new LocalizeController(this);
   private positionerCleanup: ReturnType<typeof autoUpdate> | undefined;
 
   /** The tooltip's content. Alternatively, you can use the content slot. */
@@ -220,7 +222,7 @@ export default class SlTooltip extends LitElement {
       await stopAnimations(this.tooltip);
       this.startPositioner();
       this.tooltip.hidden = false;
-      const { keyframes, options } = getAnimation(this, 'tooltip.show');
+      const { keyframes, options } = getAnimation(this, 'tooltip.show', { dir: this.localize.dir() });
       await animateTo(this.tooltip, keyframes, options);
 
       emit(this, 'sl-after-show');
@@ -229,7 +231,7 @@ export default class SlTooltip extends LitElement {
       emit(this, 'sl-hide');
 
       await stopAnimations(this.tooltip);
-      const { keyframes, options } = getAnimation(this, 'tooltip.hide');
+      const { keyframes, options } = getAnimation(this, 'tooltip.hide', { dir: this.localize.dir() });
       await animateTo(this.tooltip, keyframes, options);
       this.tooltip.hidden = true;
       this.stopPositioner();

src/utilities/animation-registry.ts

@@ -1,12 +1,21 @@
-interface ElementAnimation {
+export interface ElementAnimation {
   keyframes: Keyframe[];
+  rtlKeyframes?: Keyframe[];
   options?: KeyframeAnimationOptions;
 }
 
-interface ElementAnimationMap {
+export interface ElementAnimationMap {
   [animationName: string]: ElementAnimation;
 }
 
+export interface GetAnimationOptions {
+  /**
+   * The component's directionality. When set to "rtl", `rtlKeyframes` will be preferred over `keyframes` where
+   * available using getAnimation().
+   */
+  dir: string;
+}
+
 const defaultAnimationRegistry = new Map<string, ElementAnimation>();
 const customAnimationRegistry = new WeakMap<Element, ElementAnimationMap>();
 
@@ -14,6 +23,21 @@ function ensureAnimation(animation: ElementAnimation | null) {
   return animation ?? { keyframes: [], options: { duration: 0 } };
 }
 
+//
+// Given an ElementAnimation, this function returns a new ElementAnimation where the keyframes property reflects either
+// keyframes or rtlKeyframes depending on the specified directionality.
+//
+function getLogicalAnimation(animation: ElementAnimation, dir: string) {
+  if (dir.toLowerCase() === 'rtl') {
+    return {
+      keyframes: animation.rtlKeyframes || animation.keyframes,
+      options: animation.options
+    };
+  }
+
+  return animation;
+}
+
 //
 // Sets a default animation. Components should use the `name.animation` for primary animations and `name.part.animation`
 // for secondary animations, e.g. `dialog.show` and `dialog.overlay.show`. For modifiers, use `drawer.showTop`.
@@ -32,18 +56,18 @@ export function setAnimation(el: Element, animationName: string, animation: Elem
 //
 // Gets an element's animation. Falls back to the default if no animation is found.
 //
-export function getAnimation(el: Element, animationName: string) {
+export function getAnimation(el: Element, animationName: string, options: GetAnimationOptions) {
   const customAnimation = customAnimationRegistry.get(el);
 
   // Check for a custom animation
   if (customAnimation?.[animationName]) {
-    return customAnimation[animationName];
+    return getLogicalAnimation(customAnimation[animationName], options.dir);
   }
 
   // Check for a default animation
   const defaultAnimation = defaultAnimationRegistry.get(animationName);
   if (defaultAnimation) {
-    return defaultAnimation;
+    return getLogicalAnimation(defaultAnimation, options.dir);
   }
 
   // Fall back to an empty animation