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feat(esl-media):
esl-media-control mixin created to control and obs…
…erve `esl-media` state Closes: #2876
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| import {ESLMixinElement} from '../../esl-mixin-element/core'; | ||
| import {ESLTraversingQuery} from '../../esl-traversing-query/core/esl-traversing-query'; | ||
| import {listen, memoize} from '../../esl-utils/decorators'; | ||
| import {ExportNs} from '../../esl-utils/environment/export-ns'; | ||
| import {evaluate} from '../../esl-utils/misc/format'; | ||
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| import type {ESLMedia} from '../core/esl-media'; | ||
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| export interface ESLMediaControlConfig { | ||
| target?: string; | ||
| action?: 'play' | 'pause' | 'stop' | 'toggle'; | ||
| activeCls?: string; | ||
| } | ||
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| @ExportNs('MediaControlMixin') | ||
| export class ESLMediaControlMixin extends ESLMixinElement { | ||
| public static override is = 'esl-media-contol'; | ||
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| public static readonly DEFAULT_CONFIG: ESLMediaControlConfig = { | ||
| action: 'toggle' | ||
| }; | ||
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| @memoize() | ||
| public get config(): ESLMediaControlConfig { | ||
| const attrVal = this.$$attr(ESLMediaControlMixin.is) || '{}'; | ||
| const userConfig = attrVal.trim().startsWith('{') ? evaluate(attrVal, {}) : {target: attrVal}; | ||
| return {...ESLMediaControlMixin.DEFAULT_CONFIG, ...userConfig}; | ||
| } | ||
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| public set config(value: string | ESLMediaControlConfig) { | ||
| const serialized = typeof value === 'string' ? value : JSON.stringify(value); | ||
| this.$$attr(ESLMediaControlMixin.is, serialized); | ||
| } | ||
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| public get $target(): ESLMedia | null { | ||
| if (!this.config.target) return null; | ||
| return ESLTraversingQuery.first(this.config.target, this.$host) as ESLMedia | null; | ||
| } | ||
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| protected override attributeChangedCallback(): void { | ||
| memoize.clear(this, 'config'); | ||
| this.$$on(this.onStateChange); | ||
| } | ||
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| @listen('click') | ||
| protected onClick(): void { | ||
| const {$target, config} = this; | ||
| if (!$target || !config.action) return; | ||
| if (config.action in $target && typeof $target[config.action] === 'function') $target[config.action](); | ||
| } | ||
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| @listen({ | ||
| event: 'esl:media:play esl:media:paused esl:media:ended', | ||
| target: (control: ESLMediaControlMixin) => control.$target, | ||
| condition: (control: ESLMediaControlMixin) => !!control.config.activeCls | ||
| }) | ||
| protected onStateChange(e: CustomEvent): void { | ||
| this.$$cls(this.config.activeCls!, e.type === 'esl:media:play'); | ||
| } | ||
| } | ||
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| declare global { | ||
| export interface ESLLibrary { | ||
| MediaControlMixin: typeof ESLMediaControlMixin; | ||
| } | ||
| } |
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