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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| ---js | ||
| { | ||
| pagination: { | ||
| data: "collections.component", | ||
| size: 1, | ||
| alias: "component", | ||
| before: components => { | ||
| // remove any components that don't have a dirname | ||
| return components.filter(component => component.data.dirname) | ||
| } | ||
| }, | ||
| permalink: "components/{{component.data.page.fileSlug}}/stories/index.html", | ||
| fullHeightContent: "true", | ||
| collections: ["stories"], | ||
| eleventyComputed: { | ||
| dirname: ({component}) => component.data.dirname, | ||
| name: ({component}) => component.data.name, | ||
| tabUrl: ({component}) => component.data.page.url, | ||
| } | ||
| } | ||
| --- | ||
|
|
||
| {% extends 'default.html' %} {% block head %} | ||
| <script type="module" src="/js/pages/components.js"></script> | ||
| <script type="module" src="/js/pages/stories.js"></script> | ||
| <script | ||
| type="module" | ||
| src="/js/hydration-entrypoints/playground-elements.js" | ||
| ></script> | ||
| <link rel="stylesheet" href="/css/md-layout.css" /> | ||
| <link rel="stylesheet" href="/css/syntax-highlight.css" /> | ||
| <style> | ||
| #dragbar { | ||
| max-width: 100%; | ||
| } | ||
| #editor { | ||
| margin-block: 0; | ||
| height: 100%; | ||
| box-sizing: border-box; | ||
| } | ||
| #editor-wrapper { | ||
| height: 100%; | ||
| overflow: hidden; | ||
| } | ||
| </style> | ||
| {% endblock %} {% block content %} | ||
| <playground-project | ||
| id="project" | ||
| project-src="/assets/stories/{{dirname}}/project.json" | ||
| > | ||
| </playground-project> | ||
| <drag-playground id="dragbar"> | ||
| <playground-preview id="preview" project="project" slot="preview"> | ||
| <md-circular-progress indeterminate></md-circular-progress> | ||
| </playground-preview> | ||
| <div slot="editor" id="editor-wrapper"> | ||
| <playground-file-editor | ||
| id="editor" | ||
| project="project" | ||
| filename="stories.ts" | ||
| line-numbers | ||
| aria-hidden="true" | ||
| > | ||
| <md-circular-progress indeterminate></md-circular-progress> | ||
| </playground-file-editor> | ||
| </div> | ||
| </drag-playground> | ||
| {% endblock %} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,201 @@ | ||
| import { LitElement, css, html } from 'lit'; | ||
| import { customElement, state, query } from 'lit/decorators.js'; | ||
| import { classMap } from 'lit/directives/class-map.js'; | ||
| import { styleMap } from 'lit/directives/style-map.js'; | ||
| import '@material/web/icon/icon.js'; | ||
|
|
||
| /** | ||
| * A playground preview + editor with a draggable handle. | ||
| */ | ||
| @customElement('drag-playground') | ||
| export class DragPlayground extends LitElement { | ||
| static styles = css` | ||
| :host { | ||
| display: block; | ||
| --_drag-bar-height: 24px; | ||
| --_drag-bar-border-width: 1px; | ||
| --_half-drag-bar-height: calc( | ||
| (var(--_drag-bar-height) / 2) + var(--_drag-bar-border-width) | ||
| ); | ||
| } | ||
| #wrapper { | ||
| display: flex; | ||
| flex-direction: column; | ||
| } | ||
| :host, | ||
| #wrapper, | ||
| ::slotted(*) { | ||
| height: 100%; | ||
| } | ||
| slot { | ||
| display: block; | ||
| overflow: hidden; | ||
| } | ||
| [name='preview'] { | ||
| height: max( | ||
| calc( | ||
| 100% - var(--editor-percentage, 0%) - var(--_half-drag-bar-height) | ||
| ), | ||
| 0px | ||
| ); | ||
| } | ||
| [name='editor'] { | ||
| height: max( | ||
| calc(var(--editor-percentage, 0px) - var(--_half-drag-bar-height)), | ||
| 0px | ||
| ); | ||
| } | ||
| #drag-bar { | ||
| touch-action: none; | ||
| background-color: var(--md-sys-color-surface-container); | ||
| color: var(--md-sys-color-on-surface); | ||
| border: var(--_drag-bar-border-width) solid var(--md-sys-color-outline); | ||
| border-radius: 12px; | ||
| height: var(--_drag-bar-height); | ||
| display: flex; | ||
| justify-content: center; | ||
| align-items: center; | ||
| -webkit-user-select: none; | ||
| user-select: none; | ||
| } | ||
| #drag-bar.isDragging { | ||
| background-color: var(--md-sys-color-inverse-surface); | ||
| color: var(--md-sys-color-inverse-on-surface); | ||
| } | ||
| `; | ||
|
|
||
| /** | ||
| * Whether or not we are in the "dragging" state. | ||
| */ | ||
| @state() private isDragging = false; | ||
|
|
||
| /** | ||
| * The percentage of the editor height. | ||
| */ | ||
| @state() private editorHeightPercent = 0; | ||
|
|
||
| @query('#wrapper') private wrapperEl!: HTMLElement; | ||
|
|
||
| /** | ||
| * A set of pointer IDs in the case that the user is dragging with multiple | ||
| * pointers. | ||
| */ | ||
| private pointerIds: Set<number> = new Set(); | ||
|
|
||
| render() { | ||
| return html`<div | ||
| id="wrapper" | ||
| style=${styleMap({ | ||
| '--editor-percentage': `${this.editorHeightPercent}%`, | ||
| })} | ||
| > | ||
| <slot name="preview"></slot> | ||
| <div | ||
| id="drag-bar" | ||
| tabindex="0" | ||
| role="slider" | ||
| aria-orientation="vertical" | ||
| aria-valuemax="100" | ||
| aria-valuemin="0" | ||
| aria-valuenow="${this.editorHeightPercent}" | ||
| aria-valuetext="${this.editorHeightPercent} percent" | ||
| aria-label="Editor height" | ||
| @focus=${this.onFocus} | ||
| @blur=${this.onBlur} | ||
| @keydown=${this.onKeydown} | ||
| @pointerdown=${this.onPointerdown} | ||
| @pointerup=${this.onPointerup} | ||
| @pointermove=${this.onPointermove} | ||
| class=${classMap({ | ||
| isDragging: this.isDragging, | ||
| })} | ||
| > | ||
| <md-icon aria-hidden="true">drag_handle</md-icon> | ||
| </div> | ||
| <slot name="editor"></slot> | ||
| </div>`; | ||
| } | ||
|
|
||
| private onFocus() { | ||
| this.isDragging = true; | ||
| } | ||
|
|
||
| private onBlur() { | ||
| this.isDragging = false; | ||
| } | ||
|
|
||
| private onKeydown(event: KeyboardEvent) { | ||
| const { key } = event; | ||
| switch (key) { | ||
| case 'ArrowRight': | ||
| case 'ArrowUp': | ||
| this.editorHeightPercent = Math.min(this.editorHeightPercent + 1, 100); | ||
| break; | ||
| case 'ArrowLeft': | ||
| case 'ArrowDown': | ||
| this.editorHeightPercent = Math.max(this.editorHeightPercent - 1, 0); | ||
| break; | ||
| case 'PageUp': | ||
| this.editorHeightPercent = Math.min(this.editorHeightPercent + 10, 100); | ||
| break; | ||
| case 'PageDown': | ||
| this.editorHeightPercent = Math.max(this.editorHeightPercent - 10, 0); | ||
| break; | ||
| case 'Home': | ||
| this.editorHeightPercent = 0; | ||
| break; | ||
| case 'End': | ||
| this.editorHeightPercent = 100; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| private onPointerdown(event: PointerEvent) { | ||
| this.isDragging = true; | ||
|
|
||
| if (this.pointerIds.has(event.pointerId)) return; | ||
|
|
||
| this.pointerIds.add(event.pointerId); | ||
| (event.target as HTMLElement).setPointerCapture(event.pointerId); | ||
| } | ||
|
|
||
| private onPointerup(event: PointerEvent) { | ||
| this.pointerIds.delete(event.pointerId); | ||
| (event.target as HTMLElement).releasePointerCapture(event.pointerId); | ||
|
|
||
| if (this.pointerIds.size === 0) { | ||
| this.isDragging = false; | ||
| } | ||
| } | ||
|
|
||
| private onPointermove(event: PointerEvent) { | ||
| if (!this.isDragging) return; | ||
|
|
||
| const { clientY: mouseY } = event; | ||
| const { top: wrapperTop, bottom: wrapperBottom } = | ||
| this.wrapperEl.getBoundingClientRect(); | ||
|
|
||
| // The height of the wrapper | ||
| const height = wrapperBottom - wrapperTop; | ||
|
|
||
| // Calculate the percentage of the editor height in which the pointer is | ||
| // located | ||
| const editorHeightPercent = 100 - ((mouseY - wrapperTop) / height) * 100; | ||
|
|
||
| // Clamp the percentage between 0 and 100 | ||
| this.editorHeightPercent = Math.min(Math.max(editorHeightPercent, 0), 100); | ||
| } | ||
| } | ||
|
|
||
| declare global { | ||
| interface HTMLElementTagNameMap { | ||
| 'drag-playground': DragPlayground; | ||
| } | ||
| } |
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