68ca1f28 - figspec

Merge pull request #16 from pocka/feature/figma-file Figma file support

Changes

28 changed files (+3660/-778)

packages/components/.storybook/preview.js
- @@ -2,11 +2,12 @@ import { setCustomElements } from "@storybook/web-components";
  import "../src"; - import FigspecViewer from "../src/FigspecViewer?spec"; + import FigspecFileViewer from "../src/FigspecViewer/FigspecFileViewer?spec"; + import FigspecFrameViewer from "../src/FigspecViewer/FigspecFrameViewer?spec"; // A list of components to parse using web-component-analyzer. // Only components here appear at Docs table. - const components = [FigspecViewer]; + const components = [FigspecFileViewer, FigspecFrameViewer]; const spec = components.reduce( (a, b) => ({ ...a, ...b, tags: [...a.tags, ...b.tags] }),
packages/components/README.md
- @@ -26,7 +26,18 @@ ```
```html <body> - <figspec-viewer nodes="..." rendered-image="..." /> + <figspec-frame-viewer nodes="..." rendered-image="..."></figspec-frame-viewer> + </body> + ``` + + To display an entire Figma File, use `<figspec-file-viewer>` instead. + + ```html + <body> + <figspec-file-viewer + document-node="..." + rendered-images="..." + ></figspec-file-viewer> </body> ```
packages/components/src/FigspecViewer/ErrorMessage.ts (new)
- @@ -0,0 +1,43 @@
  + import { css, html, TemplateResult } from "lit-element"; + + export interface ErrorMessageProps { + title: string; + + children?: string | TemplateResult; + } + + export const ErrorMessage = ({ title, children }: ErrorMessageProps) => html` + <p class="error"> + <span class="error-title">${title}</span> + <span class="error-description">${children}</span> + </p> + `; + + export const styles = css` + .error { + position: absolute; + top: 50%; + left: 50%; + max-width: 80%; + padding: 0.75em 1em; + + background-color: var(--error-bg); + border-radius: 4px; + color: var(--error-fg); + + transform: translate(-50%, -50%); + } + + .error-title { + display: block; + font-size: 0.8em; + + font-weight: bold; + text-transform: capitalize; + } + + .error-description { + display: block; + margin-block-start: 0.5em; + } + `;
packages/components/src/FigspecViewer/FigspecFileViewer.stories.js (new)
- @@ -0,0 +1,51 @@
  + import { action } from "@storybook/addon-actions"; + + import { html } from "lit-html"; + + import demoJson from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/file.json"; + import image2_5 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/2:5.svg"; + import image2_9 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/2:9.svg"; + import image2_13 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/2:13.svg"; + import image64_1 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/64:1.svg"; + import image93_14 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/93:14.svg"; + import image93_32 from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/93:32.svg"; + + export default { + title: "Components/figspec-file-viewer", + component: "figspec-file-viewer", + parameters: { + layout: "fullscreen", + docs: { + inlineStories: false, + iframeHeight: 600, + }, + }, + }; + + const Template = (args) => html` + <figspec-file-viewer + style=" + min-width: 100%; + min-height: 100vh; + font-family: sans-serif; + " + .documentNode=${args.documentNode} + .renderedImages=${args.renderedImages || {}} + .panSpeed=${args.panSpeed || 500} + .zoomSpeed=${args.zoomSpeed || 500} + zoom-margin=${args.zoomMargin || 50} + ></figspec-file-viewer> + `; + + export const Defaults = Template.bind({}); + Defaults.args = { + documentNode: demoJson, + renderedImages: { + "2:5": image2_5, + "2:9": image2_9, + "2:13": image2_13, + "64:1": image64_1, + "93:14": image93_14, + "93:32": image93_32, + }, + };
packages/components/src/FigspecViewer/FigspecFileViewer.ts (new)
- @@ -0,0 +1,226 @@
  + import type * as Figma from "figma-js"; + + import { LitElement, css, html, property } from "lit-element"; + + import * as ErrorMessage from "./ErrorMessage"; + + import { ViewerMixin } from "./ViewerMixin"; + + import { extendStyles } from "./utils"; + + // TODO: Move docs for props in mixins (waiting for support at web-component-analyzer) + /** + * A Figma spec viewer. Displays a rendered image alongside sizing guides. + * @element figspec-file-viewer + * + * @property {number} [panX=0] + * Current pan offset in px for X axis. + * This is a "before the scale" value. + * + * @property {number} [panY=0] + * Current pan offset in px for Y axis. + * This is a "before the scale" value. + * + * @property {number} [scale=1] + * Current zoom level, where 1.0 = 100%. + * + * @property {number} [zoomSpeed=500] + * How fast zooming when do ctrl+scroll / pinch gestures. + * Available values: 1 ~ 1000 + * @attr [zoom-speed=500] See docs for `zoomSpeed` property. + * + * @property {number} [panSpeed=500] + * How fast panning when scroll vertically or horizontally. + * This does not affect to dragging with middle button pressed. + * Available values: 1 ~ 1000. + * @attr [pan-speed=500] See docs for `panSpeed` property. + * + * @property {Figma.Node | null} [selectedNode=null] + * Current selected node. + * + * @property {number} [zoomMargin=50] + * The minimum margin for the preview canvas in px. Will be used when the preview + * setting a default zooming scale for the canvas. + * @attr [zoom-margin=50] See docs for `zoomMargin` property. + * + * @fires scalechange When a user zoom-in or zoom-out the preview. + * @fires positionchange When a user panned the preview. + * @fires nodeselect When a user selected / unselected a node. + */ + export class FigspecFileViewer extends ViewerMixin(LitElement) { + /** + * A response of "GET file nodes" API. + * https://www.figma.com/developers/api#get-file-nodes-endpoint + */ + @property({ + type: Object, + attribute: "document-node", + }) + documentNode: Figma.FileResponse | null = null; + + /** + * A record of rendered images, where key is an ID of the node, + * value is an URI of the image. + * https://www.figma.com/developers/api#get-images-endpoint + */ + @property({ + type: Object, + attribute: "rendered-images", + }) + renderedImages: Record<string, string> | null = null; + + /** + * Current selected page (node whose type is "CANVAS"). + */ + selectedPage: Figma.Canvas | null = null; + + /** @private */ + get isMovable(): boolean { + return !!(this.renderedImages && this.documentNode); + } + + /** @private */ + get __images() { + return this.renderedImages || {}; + } + + /** @private */ + get error() { + if (!this.documentNode || !this.renderedImages) { + return ErrorMessage.ErrorMessage({ + title: "Parameter error", + children: html`<span> + Both <code>document-node</code> and <code>rendered-images</code> are + required. + </span>`, + }); + } + + if (super.error) { + return super.error; + } + } + + static get styles() { + return extendStyles(super.styles, [ + css` + :host { + --figspec-control-bg-default: #fcfcfc; + --figspec-control-fg-default: #333; + + --control-bg: var( + --figspec-control-bg, + var(--figspec-control-bg-default) + ); + --control-fg: var( + --figspec-control-bg, + var(--figspec-control-fg-default) + ); + --control-shadow: var( + --figspec-control-shadow, + 0 2px 4px rgba(0, 0, 0, 0.3) + ); + --padding: var(--figspec-control-padding, 8px 16px); + + display: flex; + flex-direction: column; + } + + @media (prefers-color-scheme: dark) { + :host { + --figspec-control-bg-default: #222; + --figspec-control-fg-default: #fff; + } + } + + .controls { + flex-shrink: 0; + padding: var(--padding); + + background-color: var(--control-bg); + box-shadow: var(--control-shadow); + color: var(--control-fg); + } + + .view { + position: relative; + flex-grow: 1; + flex-shrink: 1; + } + `, + ]); + } + + render() { + return html` + <div class="controls"> + <select @change=${this.#handlePageChange}> + ${this.documentNode?.document.children.map( + (c) => html`<option value=${c.id}>${c.name}</option>` + )} + </select> + </div> + + <div class="view">${super.render()}</div> + `; + } + + connectedCallback() { + super.connectedCallback(); + + if (this.documentNode) { + this.#selectFirstPage(); + + if (this.selectedPage) { + this.__updateTree(this.selectedPage); + this.resetZoom(); + } + } + } + + updated(changedProperties: Parameters<LitElement["updated"]>[0]) { + super.updated(changedProperties); + + if (changedProperties.has("documentNode")) { + this.#selectFirstPage(); + + if (this.selectedPage) { + this.__updateTree(this.selectedPage); + this.resetZoom(); + } + } + + if (changedProperties.has("renderedImages")) { + this.__updateEffectMargins(); + } + } + + #selectFirstPage = () => { + if (!this.documentNode) { + this.selectedPage = null; + return; + } + + this.selectedPage = + this.documentNode.document.children.filter( + (c): c is Figma.Canvas => c.type === "CANVAS" + )[0] ?? null; + }; + + #handlePageChange = (ev: Event) => { + const target = ev.currentTarget as HTMLSelectElement; + + this.selectedPage = + (this.documentNode?.document.children.find( + (c) => c.id === target.value + ) as Figma.Canvas) ?? null; + + if (this.selectedPage) { + this.__updateTree(this.selectedPage); + this.resetZoom(); + this.__updateEffectMargins(); + this.panX = 0; + this.panY = 0; + } + }; + }
packages/components/src/FigspecViewer/FigspecFrameViewer.ts (new)
- @@ -0,0 +1,153 @@
  + import type * as Figma from "figma-js"; + + import { LitElement, html, property } from "lit-element"; + + import * as ErrorMessage from "./ErrorMessage"; + + import { ViewerMixin } from "./ViewerMixin"; + + import { SizedNode } from "./utils"; + + // TODO: Move docs for props in mixins (waiting for support at web-component-analyzer) + /** + * A Figma spec viewer. Displays a rendered image alongside sizing guides. + * @element figspec-frame-viewer + * + * @property {number} [panX=0] + * Current pan offset in px for X axis. + * This is a "before the scale" value. + * + * @property {number} [panY=0] + * Current pan offset in px for Y axis. + * This is a "before the scale" value. + * + * @property {number} [scale=1] + * Current zoom level, where 1.0 = 100%. + * + * @property {number} [zoomSpeed=500] + * How fast zooming when do ctrl+scroll / pinch gestures. + * Available values: 1 ~ 1000 + * @attr [zoom-speed=500] See docs for `zoomSpeed` property. + * + * @property {number} [panSpeed=500] + * How fast panning when scroll vertically or horizontally. + * This does not affect to dragging with middle button pressed. + * Available values: 1 ~ 1000. + * @attr [pan-speed=500] See docs for `panSpeed` property. + * + * @property {Figma.Node | null} [selectedNode=null] + * Current selected node. + * + * @property {number} [zoomMargin=50] + * The minimum margin for the preview canvas in px. Will be used when the preview + * setting a default zooming scale for the canvas. + * @attr [zoom-margin=50] See docs for `zoomMargin` property. + * + * @fires scalechange When a user zoom-in or zoom-out the preview. + * @fires positionchange When a user panned the preview. + * @fires nodeselect When a user selected / unselected a node. + */ + export class FigspecFrameViewer extends ViewerMixin(LitElement) { + /** + * A response of "GET file nodes" API. + * https://www.figma.com/developers/api#get-file-nodes-endpoint + */ + @property({ + type: Object, + }) + nodes: Figma.FileNodesResponse | null = null; + + /** + * An image rendered by "GET image" API. + * https://www.figma.com/developers/api#get-images-endpoint + */ + @property({ + type: String, + attribute: "rendered-image", + }) + renderedImage: string | null = null; + + /** @private */ + get isMovable(): boolean { + return !!(this.nodes && this.renderedImage && this.documentNode); + } + + /** + * Readonly. Document node (= root drawable node). + * @readonly + */ + get documentNode(): SizedNode | null { + if (!this.nodes) { + return null; + } + + const documentNode = Object.values(this.nodes.nodes)[0]; + + if (!documentNode || !("absoluteBoundingBox" in documentNode.document)) { + return null; + } + + return documentNode.document; + } + + /** @private */ + get __images() { + if (!this.documentNode || !this.renderedImage) { + return {}; + } + + return { + [this.documentNode.id]: this.renderedImage, + }; + } + + /** @private */ + get error() { + if (!this.nodes || !this.renderedImage) { + return ErrorMessage.ErrorMessage({ + title: "Parameter error", + children: html`<span> + Both <code>nodes</code> and <code>rendered-image</code> are required. + </span>`, + }); + } + + if (!this.documentNode) { + return ErrorMessage.ErrorMessage({ + title: "Parameter Error", + children: html` + <span> Document node is empty or does not have size. </span> + `, + }); + } + + if (super.error) { + return super.error; + } + } + + connectedCallback() { + super.connectedCallback(); + + if (this.documentNode) { + this.__updateTree(this.documentNode); + this.__updateEffectMargins(); + this.resetZoom(); + } + } + + updated(changedProperties: Parameters<LitElement["updated"]>[0]) { + super.updated(changedProperties); + + if (changedProperties.has("nodes")) { + if (!this.documentNode) return; + + this.__updateTree(this.documentNode); + this.resetZoom(); + } + + if (changedProperties.has("renderedImage")) { + this.__updateEffectMargins(); + } + } + }
packages/components/src/FigspecViewer/Node.ts
- @@ -8,11 +8,17 @@ export interface OutlineProps {
  node: Extract<Figma.Node, { absoluteBoundingBox: any }>; computedThickness: number; + selected?: boolean; onClick?(ev: MouseEvent): void; } - export const Outline = ({ node, computedThickness, onClick }: OutlineProps) => { + export const Outline = ({ + node, + selected = false, + computedThickness, + onClick, + }: OutlineProps) => { const { x, y, width, height } = node.absoluteBoundingBox; const radius: {
- @@ -80,6 +86,7 @@ d=${boxPath}
  shape-rendering="geometricPrecision" fill="none" transform="translate(${x}, ${y})" + ?data-selected=${selected} @click=${onClick} /> `;
- @@ -130,7 +137,7 @@ }
  .guide:hover { opacity: 1; } - [data-selected] > .guide { + .guide[data-selected] { opacity: 1; stroke: var(--guide-selected-color); }
packages/components/src/FigspecViewer/NodeSelectableMixin.ts (new)
- @@ -0,0 +1,39 @@
  + import type * as Figma from "figma-js"; + import { LitElement, property } from "lit-element"; + + import type { Constructor, SizedNode } from "./utils"; + + export interface INodeSelectable { + selectedNode: SizedNode | null; + } + + export const NodeSelectableMixin = <T extends Constructor<LitElement>>( + superClass: T + ): T & Constructor<INodeSelectable> => { + class NodeSelectable extends superClass { + @property({ + attribute: false, + }) + selectedNode: SizedNode | null = null; + + constructor(...args: any[]) { + super(...args); + } + + updated(changedProperties: Parameters<LitElement["updated"]>[0]) { + super.updated(changedProperties); + + if (changedProperties.has("selectedNode")) { + this.dispatchEvent( + new CustomEvent<{ selectedNode: Figma.Node | null }>("nodeselect", { + detail: { + selectedNode: this.selectedNode, + }, + }) + ); + } + } + } + + return NodeSelectable; + };
packages/components/src/FigspecViewer/PositionedMixin.ts (new)
- @@ -0,0 +1,199 @@
  + import { LitElement, property } from "lit-element"; + + import type { Constructor } from "./utils"; + + export interface Positioned { + panX: number; + panY: number; + scale: number; + zoomSpeed: number; + panSpeed: number; + + readonly isMovable: boolean; + readonly canvasTransform: readonly string[]; + } + + export const PositionedMixin = <T extends Constructor<LitElement>>( + superClass: T + ): T & Constructor<Positioned> => { + class Positioned extends superClass { + @property({ + attribute: false, + }) + panX: number = 0; + + @property({ + attribute: false, + }) + panY: number = 0; + + @property({ + attribute: false, + }) + scale: number = 1; + + @property({ + type: Number, + attribute: "zoom-speed", + }) + zoomSpeed: number = 500; + + @property({ + type: Number, + attribute: "pan-speed", + }) + panSpeed: number = 500; + + get isMovable() { + return true; + } + + get canvasTransform() { + return [ + `scale(${this.scale})`, + `translate(${this.panX}px, ${this.panY}px)`, + ]; + } + + #isDragModeOn: boolean = false; + + constructor(...args: any[]) { + super(...args); + + this.addEventListener( + "wheel", + (ev) => { + if (!this.isMovable) return; + + ev.preventDefault(); + + if (ev.ctrlKey) { + // Performs zoom when ctrl key is pressed. + let { deltaY } = ev; + + if (ev.deltaMode === 1) { + // Firefox quirk + deltaY *= 15; + } + + const prevScale = this.scale; + + this.scale *= 1 - deltaY / ((1000 - this.zoomSpeed) * 0.5); + + // Performs pan to archive "zoom at the point" behavior (I don't know how to call it). + const offsetX = ev.offsetX - this.offsetWidth / 2; + const offsetY = ev.offsetY - this.offsetHeight / 2; + + this.panX += offsetX / this.scale - offsetX / prevScale; + this.panY += offsetY / this.scale - offsetY / prevScale; + } else { + // Performs pan otherwise (to be close to native behavior) + // Adjusting panSpeed in order to make panSpeed=500 to match to the Figma's one. + const speed = this.panSpeed * 0.002; + + this.panX -= (ev.deltaX * speed) / this.scale; + this.panY -= (ev.deltaY * speed) / this.scale; + } + }, + // This component prevents every native wheel behavior on it. + { passive: false } + ); + + this.addEventListener("pointermove", (ev) => { + // Performs pan only when middle buttons is pressed. + // + // 4 ... Auxiliary button (usually the mouse wheel button or middle button) + // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons + if (!(ev.buttons & 4)) return; + + ev.preventDefault(); + + // Moving amount of middle button+pointer move panning should matches to the actual + // pointer travel distance. Since translate goes after scaling, we need to scale + // delta too. + this.#movePanel(ev.movementX, ev.movementY); + }); + + // Listen to keyboard events to enable dragging when Space is pressed, just like in Figma + this.#listenToKeyboardEvents(); + + /** @private */ + this.onmousedown = () => { + if (this.#isDragModeOn) { + document.body.style.cursor = "grabbing"; + + this.onmousemove = ({ movementX, movementY }: MouseEvent) => { + this.#movePanel(movementX, movementY); + }; + + // cleanup unnecessary listeners when user stops dragging + this.onmouseup = () => { + document.body.style.cursor = "grab"; + this.onmousemove = null; + this.onmouseup = null; + }; + } + }; + } + + disconnectedCallback() { + document.removeEventListener("keyup", this.#keyUp); + document.removeEventListener("keydown", this.#keyDown); + super.disconnectedCallback(); + } + + // Dispatch events when the position-related value changes. + updated(changedProperties: Parameters<LitElement["updated"]>[0]) { + super.updated(changedProperties); + + if (changedProperties.has("scale")) { + this.dispatchEvent( + new CustomEvent<{ scale: number }>("scalechange", { + detail: { + scale: this.scale, + }, + }) + ); + } + + if (changedProperties.has("panX") || changedProperties.has("panY")) { + this.dispatchEvent( + new CustomEvent<{ x: number; y: number }>("positionchange", { + detail: { + x: this.panX, + y: this.panY, + }, + }) + ); + } + } + + #movePanel = (shiftX: number, shiftY: number) => { + this.panX += shiftX / this.scale / window.devicePixelRatio; + this.panY += shiftY / this.scale / window.devicePixelRatio; + }; + + // Enable drag mode when holding the spacebar + #keyDown = (event: KeyboardEvent) => { + if (event.code === "Space" && !this.#isDragModeOn) { + this.#isDragModeOn = true; + document.body.style.cursor = "grab"; + } + }; + + // Disable drag mode when space lets the spacebar go + #keyUp = (event: KeyboardEvent) => { + if (event.code === "Space" && this.#isDragModeOn) { + this.#isDragModeOn = false; + document.body.style.cursor = "auto"; + } + }; + + #listenToKeyboardEvents = () => { + document.addEventListener("keyup", this.#keyUp); + document.addEventListener("keydown", this.#keyDown); + }; + } + + return Positioned; + };
packages/components/src/FigspecViewer/ViewerMixin.ts (new)
- @@ -0,0 +1,523 @@
  + import type * as Figma from "figma-js"; + import { + LitElement, + css, + html, + svg, + property, + TemplateResult, + } from "lit-element"; + import { styleMap } from "lit-html/directives/style-map"; + + import { Constructor, extendStyles, SizedNode } from "./utils"; + + import { INodeSelectable, NodeSelectableMixin } from "./NodeSelectableMixin"; + import { Positioned, PositionedMixin } from "./PositionedMixin"; + + import * as DistanceGuide from "./DistanceGuide"; + import * as ErrorMessage from "./ErrorMessage"; + import * as Node from "./Node"; + + interface Margin { + top: number; + right: number; + bottom: number; + left: number; + } + + export interface IViewer { + zoomMargin: number; + + /** + * A record of rendered images. + * Key is an id of the node. + * Value is an URL of the rendered image. + */ + __images: Record<string, string>; + + readonly error?: string | TemplateResult | Error | null; + + __updateTree(node: Figma.Node): void; + __updateEffectMargins(): void; + resetZoom(): void; + } + + export const ViewerMixin = <T extends Constructor<LitElement>>( + superClass: T + ): T & Constructor<IViewer & INodeSelectable & Positioned> => { + class Viewer extends NodeSelectableMixin(PositionedMixin(superClass)) { + @property({ + type: Number, + attribute: "zoom-margin", + }) + zoomMargin: number = 50; + + static get styles() { + // @ts-ignore + const styles = super.styles; + + return extendStyles(styles, [ + css` + :host { + --bg: var(--figspec-viewer-bg, #666); + --z-index: var(--figspec-viewer-z-index, 0); + --error-bg: var(--figspec-viewer-error-bg, #870909); + --error-fg: var(--figspec-viewer-error-fg, white); + + --guide-thickness: var(--figspec-viewer-guide-thickness, 1.5px); + --guide-color: var(--figspec-viewer-guide-color, tomato); + --guide-selected-color: var( + --figspec-viewer-guide-selected-color, + dodgerblue + ); + --guide-tooltip-fg: var(--figspec-viewer-guide-tooltip-fg, white); + --guide-selected-tooltip-fg: var( + --figspec-viewer-guide-selected-tooltip-fg, + white + ); + --guide-tooltip-bg: var( + --figspec-viewer-guide-tooltip-bg, + var(--guide-color) + ); + --guide-selected-tooltip-bg: var( + --figspec-viewer-guide-selected-tooltip-bg, + var(--guide-selected-color) + ); + --guide-tooltip-font-size: var( + --figspec-viewer-guide-tooltip-font-size, + 12px + ); + + position: relative; + display: block; + + background-color: var(--bg); + user-select: none; + overflow: hidden; + z-index: var(--z-index); + } + + .canvas { + position: absolute; + top: 50%; + left: 50%; + } + + .rendered-image { + position: absolute; + top: 0; + left: 0; + } + + .guides { + position: absolute; + + overflow: visible; + stroke: var(--guide-color); + fill: var(--guide-color); + pointer-events: none; + z-index: calc(var(--z-index) + 2); + } + `, + Node.styles, + ErrorMessage.styles, + DistanceGuide.styles, + ]); + } + + get __images(): Record<string, string> { + return {}; + } + + // Cached values + #canvasSize?: Figma.Rect; + #effectMargins?: Record<string, Margin>; + #flattenedNodes?: readonly SizedNode[]; + + constructor(...args: any[]) { + super(...args); + + this.addEventListener("click", () => { + this.selectedNode = null; + }); + } + + get error(): string | Error | null | TemplateResult | undefined { + if (!this.#canvasSize || !this.#flattenedNodes) { + return ErrorMessage.ErrorMessage({ + title: "Error", + children: + "Please call `__updateTree/1` method with a valid parameter.", + }); + } + + return null; + } + + render() { + if (this.error) { + if (this.error instanceof Error) { + return ErrorMessage.ErrorMessage({ + title: this.error.name || "Error", + children: this.error.message, + }); + } + + if (typeof this.error === "string") { + return ErrorMessage.ErrorMessage({ + title: "Error", + children: this.error, + }); + } + + return this.error; + } + + const canvasSize = this.#canvasSize!; + + const reverseScale = 1 / this.scale; + + const guideThickness = `calc(var(--guide-thickness) * ${reverseScale})`; + + const computedGuideThickness = parseFloat( + getComputedStyle(this).getPropertyValue("--guide-thickness") + ); + + const computedGuideTooltipFontSize = parseFloat( + getComputedStyle(this).getPropertyValue("--guide-tooltip-font-size") + ); + + return html` + <div + class="canvas" + style=" + width: ${canvasSize.width}px; + height: ${canvasSize.height}px; + + transform: translate(-50%, -50%) ${this.canvasTransform.join(" ")} + " + > + ${Object.entries(this.__images).map(([nodeId, uri]) => { + const node = this.#getNodeById(nodeId); + + if ( + !node || + !("absoluteBoundingBox" in node) || + !this.#effectMargins?.[node.id] + ) { + return null; + } + + const margin = this.#effectMargins[node.id]; + + return html` + <img class="rendered-image" src="${uri}" + style=${styleMap({ + top: `${node.absoluteBoundingBox.y - canvasSize.y}px`, + left: `${node.absoluteBoundingBox.x - canvasSize.x}px`, + marginTop: `${-margin.top}px`, + marginLeft: `${-margin.left}px`, + width: + node.absoluteBoundingBox.width + + margin.left + + margin.right + + "px", + height: + node.absoluteBoundingBox.height + + margin.top + + margin.bottom + + "px", + })}" + " /> + `; + })} + ${this.selectedNode && + Node.Tooltip({ + nodeSize: this.selectedNode.absoluteBoundingBox, + offsetX: -canvasSize.x, + offsetY: -canvasSize.y, + reverseScale, + })} + ${svg` + <svg + class="guides" + viewBox="0 0 5 5" + width="5" + height="5" + style=${styleMap({ + left: `${-canvasSize.x}px`, + top: `${-canvasSize.y}px`, + strokeWidth: guideThickness, + })} + > + ${ + this.selectedNode && + Node.Outline({ + node: this.selectedNode, + selected: true, + computedThickness: computedGuideThickness * reverseScale, + }) + } + + ${this.#flattenedNodes!.map((node) => { + if (node.id === this.selectedNode?.id) { + return null; + } + + return svg` + <g> + ${Node.Outline({ + node, + computedThickness: computedGuideThickness * reverseScale, + onClick: this.#handleNodeClick(node), + })} + ${ + this.selectedNode && + DistanceGuide.Guides({ + node, + distanceTo: this.selectedNode, + reverseScale, + fontSize: computedGuideTooltipFontSize, + }) + } + </g> + `; + })} + </svg> + `} + </div> + `; + } + + connectedCallback() { + super.connectedCallback(); + + this.resetZoom(); + } + + updated(changedProperties: Parameters<LitElement["updated"]>[0]) { + super.updated(changedProperties); + } + + __updateTree(node: Figma.Node) { + if ( + !( + node.type === "CANVAS" || + node.type === "FRAME" || + node.type === "COMPONENT" + ) + ) { + throw new Error( + "Cannot update node tree: Top level node MUST be one of CANVAS, FRAME, or COMPONENT" + ); + } + + this.#canvasSize = + node.type === "CANVAS" ? getCanvasSize(node) : node.absoluteBoundingBox; + + this.#flattenedNodes = flattenNode(node); + + // Since above properties aren't "attribute", their changes does not + // trigger an update. We need to manually request an update. + this.requestUpdate(); + } + + __updateEffectMargins() { + if (!this.__images) { + return; + } + + const containers = Object.keys(this.__images) + .map(this.#getNodeById) + .filter((n): n is NonNullable<typeof n> => !!n); + + this.#effectMargins = containers.reduce<Record<string, Margin>>( + (margin, node) => { + if (!("absoluteBoundingBox" in node)) { + return margin; + } + + return { + ...margin, + [node.id]: getEffectMargin(node, flattenNode(node)), + }; + }, + {} + ); + + this.requestUpdate(); + } + + resetZoom() { + if (this.#canvasSize) { + // Set initial zoom level based on element size + const { width, height } = this.#canvasSize; + const { + width: elementWidth, + height: elementHeight, + } = this.getBoundingClientRect(); + + const wDiff = elementWidth / (width + this.zoomMargin * 2); + const hDiff = elementHeight / (height + this.zoomMargin * 2); + + this.scale = Math.min(wDiff, hDiff, 1); + } + } + + #handleNodeClick = (node: SizedNode) => (ev: MouseEvent) => { + ev.preventDefault(); + ev.stopPropagation(); + + this.selectedNode = node; + }; + + #getNodeById = (id: string): Figma.Node | null => { + return this.#flattenedNodes?.find((n) => n.id === id) ?? null; + }; + } + + return Viewer; + }; + + function getCanvasSize(node: Figma.Canvas): Figma.Rect { + const left: number[] = []; + const right: number[] = []; + const top: number[] = []; + const bottom: number[] = []; + + for (const child of node.children) { + if (child.type !== "FRAME" && child.type !== "COMPONENT") { + continue; + } + + const { x, y, width, height } = child.absoluteBoundingBox; + + left.push(x); + right.push(x + width); + top.push(y); + bottom.push(y + height); + } + + const minX = Math.min(...left); + const minY = Math.min(...top); + + return { + x: minX, + y: minY, + width: Math.abs(Math.max(...right) - minX), + height: Math.abs(Math.min(...bottom) - minY), + }; + } + + function getEffectMargin( + container: SizedNode, + nodes: readonly SizedNode[] + ): Margin { + const points = nodes.map((node) => { + if (!("effects" in node)) { + return { + top: node.absoluteBoundingBox.y, + right: node.absoluteBoundingBox.x + node.absoluteBoundingBox.width, + bottom: node.absoluteBoundingBox.y + node.absoluteBoundingBox.height, + left: node.absoluteBoundingBox.x, + }; + } + + const blurRadiuses = node.effects + .filter((effect) => effect.visible && effect.type === "LAYER_BLUR") + .map((effect) => effect.radius); + + const shadowMargins = node.effects + .filter( + ( + effect + ): effect is Figma.Effect & { + offset: NonNullable<Figma.Effect["offset"]>; + } => effect.visible && effect.type === "DROP_SHADOW" && !!effect.offset + ) + .map<Margin>((effect) => { + return { + left: effect.radius - effect.offset.x, + top: effect.radius - effect.offset.y, + right: effect.radius + effect.offset.x, + bottom: effect.radius + effect.offset.y, + }; + }); + + const margin: Margin = { + top: Math.max( + 0, + ...blurRadiuses, + ...shadowMargins.map((margin) => margin.top) + ), + right: Math.max( + 0, + ...blurRadiuses, + ...shadowMargins.map((margin) => margin.right) + ), + bottom: Math.max( + 0, + ...blurRadiuses, + ...shadowMargins.map((margin) => margin.bottom) + ), + left: Math.max( + 0, + ...blurRadiuses, + ...shadowMargins.map((margin) => margin.left) + ), + }; + + return { + top: node.absoluteBoundingBox.y - margin.top, + right: + node.absoluteBoundingBox.x + + node.absoluteBoundingBox.width + + margin.right, + bottom: + node.absoluteBoundingBox.y + + node.absoluteBoundingBox.height + + margin.bottom, + left: node.absoluteBoundingBox.x - margin.left, + }; + }); + + const bounds = { + top: Math.min(...points.map((p) => p.top)), + right: Math.max(...points.map((p) => p.right)), + bottom: Math.max(...points.map((p) => p.bottom)), + left: Math.min(...points.map((p) => p.left)), + }; + + return { + top: container.absoluteBoundingBox.y - bounds.top, + right: + bounds.right - + container.absoluteBoundingBox.x - + container.absoluteBoundingBox.width, + bottom: + bounds.bottom - + container.absoluteBoundingBox.y - + container.absoluteBoundingBox.height, + left: container.absoluteBoundingBox.x - bounds.left, + }; + } + + function flattenNode( + node: Figma.Node, + depth: number = 0 + ): readonly (SizedNode & { + depth: number; + })[] { + if (!("absoluteBoundingBox" in node)) { + return node.children.map((child) => flattenNode(child, depth + 1)).flat(); + } + + if (!("children" in node) || node.children.length === 0) { + return [{ ...node, depth }]; + } + + return [ + { ...node, depth }, + ...node.children.map((child) => flattenNode(child, depth + 1)).flat(), + ]; + }
packages/components/src/FigspecViewer/index.stories.js > packages/components/src/FigspecViewer/FigspecFrameViewer.stories.js
- @@ -6,8 +6,8 @@ import demoJson from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/64:1.json";
  import demoImage from "../__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/64:1.svg"; export default { - title: "Components/figspec-viewer", - component: "figspec-viewer", + title: "Components/figspec-frame-viewer", + component: "figspec-frame-viewer", parameters: { layout: "fullscreen", docs: {
- @@ -18,7 +18,7 @@ },
  }; const Template = (args) => html` - <figspec-viewer + <figspec-frame-viewer style=" min-width: 100%; min-height: 100vh;
- @@ -29,7 +29,7 @@ rendered-image=${args.renderedImage || ""}
  .panSpeed=${args.panSpeed || 500} .zoomSpeed=${args.zoomSpeed || 500} zoom-margin=${args.zoomMargin || 50} - ></figspec-viewer> + ></figspec-frame-viewer> `; export const Defaults = Template.bind({});
- @@ -55,7 +55,7 @@
  WithoutRequiredValues.args = {}; export const Events = (args) => html` - <figspec-viewer + <figspec-frame-viewer style=" min-width: 100%; min-height: 100vh;
- @@ -69,7 +69,7 @@ zoom-margin=${args.zoomMargin || 50}
  @scalechange=${action("scalechange")} @positionchange=${action("positionchange")} @nodeselect=${action("nodeselect")} - ></figspec-viewer> + ></figspec-frame-viewer> `; Events.args = { nodes: demoJson,
packages/components/src/FigspecViewer/index.ts (deleted)
- @@ -1,689 +0,0 @@
  - import type * as Figma from "figma-js"; - - import { - LitElement, - TemplateResult, - css, - html, - property, - svg, - } from "lit-element"; - import { styleMap, StyleInfo } from "lit-html/directives/style-map"; - - import * as DistanceGuide from "./DistanceGuide"; - import * as Node from "./Node"; - - type SizedNode = Extract<Figma.Node, { absoluteBoundingBox: any }>; - - /** - * A Figma spec viewer. Displays a rendered image alongside sizing guides. - * @element figspec-viewer - */ - export class FigspecViewer extends LitElement { - /** - * A response of "GET file nodes" API. - * https://www.figma.com/developers/api#get-file-nodes-endpoint - */ - @property({ - type: Object, - }) - nodes: Figma.FileNodesResponse | null = null; - - /** - * An image rendered by "GET image" API. - * https://www.figma.com/developers/api#get-images-endpoint - */ - @property({ - type: String, - attribute: "rendered-image", - }) - renderedImage: string | null = null; - - /** - * Current selected node. - */ - @property({ - attribute: false, - }) - selectedNode: SizedNode | null = null; - - /** - * Current zoom level, where 1.0 = 100%. - */ - @property({ - attribute: false, - }) - scale: number = 1; - - /** - * Current pan offset in px for X axis. - * This is a "before the scale" value. - */ - @property({ - attribute: false, - }) - panX: number = 0; - - /** - * Current pan offset in px for Y axis. - * This is a "before the scale" value. - */ - @property({ - attribute: false, - }) - panY: number = 0; - - /** - * How fast zooming when do ctrl+scroll / pinch gestures. - * Available values: 1 ~ 1000 - */ - @property({ - type: Number, - attribute: "zoom-speed", - }) - zoomSpeed: number = 500; - - /** - * How fast panning when scroll vertically or horizontally. - * This does not affect to dragging with middle button pressed. - * Available values: 1 ~ 1000. - */ - @property({ - type: Number, - attribute: "pan-speed", - }) - panSpeed: number = 500; - - /** - * The minimum margin for the preview canvas. Will be used when the preview - * setting a default zooming scale for the canvas. - */ - @property({ - type: Number, - attribute: "zoom-margin", - }) - zoomMargin: number = 50; - - #isDragModeOn: boolean = false; - - // Computed values. In order to avoid computing each time scale/pan, we - // compute these values only when the source attributes has changed. - #flattenedNodes?: ReturnType<typeof flattenNode>; - #canvasMargin?: ReturnType<typeof getCanvasMargin>; - - constructor() { - super(); - - this.addEventListener("click", () => { - this.selectedNode = null; - }); - - this.addEventListener( - "wheel", - (ev) => { - if (this.parameterError) return; - - ev.preventDefault(); - - if (ev.ctrlKey) { - // Performs zoom when ctrl key is pressed. - let { deltaY } = ev; - - if (ev.deltaMode === 1) { - // Firefox quirk - deltaY *= 15; - } - - const prevScale = this.scale; - - this.scale *= 1 - deltaY / ((1000 - this.zoomSpeed) * 0.5); - - // Performs pan to archive "zoom at the point" behavior (I don't know how to call it). - const offsetX = ev.offsetX - this.offsetWidth / 2; - const offsetY = ev.offsetY - this.offsetHeight / 2; - - this.panX += offsetX / this.scale - offsetX / prevScale; - this.panY += offsetY / this.scale - offsetY / prevScale; - } else { - // Performs pan otherwise (to be close to native behavior) - // Adjusting panSpeed in order to make panSpeed=500 to match to the Figma's one. - const speed = this.panSpeed * 0.002; - - this.panX -= (ev.deltaX * speed) / this.scale; - this.panY -= (ev.deltaY * speed) / this.scale; - } - }, - // This component prevents every native wheel behavior on it. - { passive: false } - ); - - this.addEventListener("pointermove", (ev) => { - // Performs pan only when middle buttons is pressed. - // - // 4 ... Auxiliary button (usually the mouse wheel button or middle button) - // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons - if (!(ev.buttons & 4)) return; - - ev.preventDefault(); - - // Moving amount of middle button+pointer move panning should matches to the actual - // pointer travel distance. Since translate goes after scaling, we need to scale - // delta too. - this.movePanel(ev.movementX, ev.movementY); - }); - - // Listen to keyboard events to enable dragging when Space is pressed, just like in Figma - this.#listenToKeyboardEvents(); - - /** @private */ - this.onmousedown = () => { - if (this.#isDragModeOn) { - document.body.style.cursor = "grabbing"; - - this.onmousemove = ({ movementX, movementY }: MouseEvent) => { - this.movePanel(movementX, movementY); - }; - - // cleanup unnecessary listeners when user stops dragging - this.onmouseup = () => { - document.body.style.cursor = "grab"; - this.onmousemove = null; - this.onmouseup = null; - }; - } - }; - } - - movePanel(shiftX: number, shiftY: number) { - this.panX += shiftX / this.scale / window.devicePixelRatio; - this.panY += shiftY / this.scale / window.devicePixelRatio; - } - - static get styles() { - return [ - css` - :host { - --bg: var(--figspec-viewer-bg, #666); - --z-index: var(--figspec-viewer-z-index, 0); - --error-bg: var(--figspec-viewer-error-bg, #870909); - --error-fg: var(--figspec-viewer-error-fg, white); - - --guide-thickness: var(--figspec-viewer-guide-thickness, 1.5px); - --guide-color: var(--figspec-viewer-guide-color, tomato); - --guide-selected-color: var( - --figspec-viewer-guide-selected-color, - dodgerblue - ); - --guide-tooltip-fg: var(--figspec-viewer-guide-tooltip-fg, white); - --guide-selected-tooltip-fg: var( - --figspec-viewer-guide-selected-tooltip-fg, - white - ); - --guide-tooltip-bg: var( - --figspec-viewer-guide-tooltip-bg, - var(--guide-color) - ); - --guide-selected-tooltip-bg: var( - --figspec-viewer-guide-selected-tooltip-bg, - var(--guide-selected-color) - ); - --guide-tooltip-font-size: var( - --figspec-viewer-guide-tooltip-font-size, - 12px - ); - - position: relative; - display: block; - - background-color: var(--bg); - user-select: none; - overflow: hidden; - z-index: var(--z-index); - } - - .canvas { - position: absolute; - top: 50%; - left: 50%; - } - - .rendered-image { - position: absolute; - top: 0; - left: 0; - } - - .error { - position: absolute; - top: 50%; - left: 50%; - max-width: 80%; - padding: 0.75em 1em; - - background-color: var(--error-bg); - border-radius: 4px; - color: var(--error-fg); - - transform: translate(-50%, -50%); - } - - .error-title { - display: block; - font-size: 0.8em; - - font-weight: bold; - text-transform: capitalize; - } - - .error-description { - display: block; - margin-block-start: 0.5em; - } - - .guides { - position: absolute; - - overflow: visible; - stroke: var(--guide-color); - fill: var(--guide-color); - pointer-events: none; - z-index: calc(var(--z-index) + 2); - } - `, - Node.styles, - DistanceGuide.styles, - ]; - } - - /** - * Readonly. Document node (= root drawable node). - * @readonly - */ - get documentNode(): SizedNode | null { - if (!this.nodes) { - return null; - } - - const documentNode = Object.values(this.nodes.nodes)[0]; - - if (!documentNode || !("absoluteBoundingBox" in documentNode.document)) { - return null; - } - - return documentNode.document; - } - - /** - * @private - */ - get parameterError(): TemplateResult | null { - if (!this.nodes || !this.renderedImage) { - return html`Both <code>nodes</code> and <code>rendered-image</code> are - required.`; - } - - if (!this.documentNode) { - return html`Document node is empty or does not have size.`; - } - - return null; - } - - render() { - if (this.parameterError) { - return html` - <p class="error"> - <span class="error-title">Parameter error</span> - <span class="error-description">${this.parameterError}</span> - </p> - `; - } - - if (!this.#flattenedNodes || !this.#canvasMargin) { - return html` - <p class="error"> - <span class="error-title">Computation Error</span> - <span class="error-description"> - Failed to calculate based on given inputs. - </span> - </p> - `; - } - - const documentNode = this.documentNode as SizedNode; - const margin = this.#canvasMargin; - - const canvasSize = documentNode.absoluteBoundingBox; - - const { scale, panX, panY } = this; - - const reverseScale = 1 / scale; - - const guideThickness = `calc(var(--guide-thickness) * ${reverseScale})`; - - const computedGuideThickness = parseFloat( - getComputedStyle(this).getPropertyValue("--guide-thickness") - ); - - const computedGuideTooltipFontSize = parseFloat( - getComputedStyle(this).getPropertyValue("--guide-tooltip-font-size") - ); - - return html` - <div - class="canvas" - style=" - width: ${canvasSize.width}px; - height: ${canvasSize.height}px; - - transform: translate(-50%, -50%) scale(${scale}) translate(${panX}px, ${panY}px); - " - > - <img - class="rendered-image" - src="${this.renderedImage}" - style=" - margin-top: ${-margin.top}px; - margin-left: ${-margin.left}px; - width: ${canvasSize.width + margin.left + margin.right}px; - height: ${canvasSize.height + margin.top + margin.bottom}px; - " - /> - - ${this.selectedNode && - Node.Tooltip({ - nodeSize: this.selectedNode.absoluteBoundingBox, - offsetX: -canvasSize.x, - offsetY: -canvasSize.y, - reverseScale, - })} - ${svg` - <svg class="guides" - viewBox="0 0 5 5" - width="5" - height="5" - style=${styleMap({ - left: `${-canvasSize.x}px`, - top: `${-canvasSize.y}px`, - strokeWidth: guideThickness, - })} - > - ${ - this.selectedNode && - svg` - <g data-selected> - ${Node.Outline({ - node: this.selectedNode, - computedThickness: computedGuideThickness * reverseScale, - })} - </g> - ` - } - - ${this.#flattenedNodes.map((node) => { - if (node.id === this.selectedNode?.id) { - return null; - } - - return svg` - <g> - ${Node.Outline({ - node, - computedThickness: computedGuideThickness * reverseScale, - onClick: this.#handleNodeClick(node), - })} - ${ - this.selectedNode && - DistanceGuide.Guides({ - node, - distanceTo: this.selectedNode, - reverseScale, - fontSize: computedGuideTooltipFontSize, - }) - } - </g> - `; - })} - </svg> - `} - </div> - `; - } - - connectedCallback() { - super.connectedCallback(); - - this.#resetZoom(); - } - - disconnectedCallback() { - document.removeEventListener("keyup", this.#keyUp); - document.removeEventListener("keydown", this.#keyDown); - super.disconnectedCallback(); - } - - updated(changedProperties: Parameters<LitElement["updated"]>[0]) { - // Flatten a node tree and calculate outermost boundary rect, - // then save these result. - if (changedProperties.has("nodes")) { - if (!this.documentNode) return; - - this.#flattenedNodes = flattenNode(this.documentNode); - this.#canvasMargin = getCanvasMargin( - this.documentNode, - this.#flattenedNodes - ); - - // Since above properties aren't "attribute", their changes does not - // trigger an update. We need to manually request an update. - this.requestUpdate(); - } - - // Dispatch "scalechange" event. - if (changedProperties.has("scale")) { - /** - * When a user zoom-in or zoom-out the preview. - */ - this.dispatchEvent( - new CustomEvent<{ scale: number }>("scalechange", { - detail: { - scale: this.scale, - }, - }) - ); - } - - // Dispatch "positionchange" event. - if (changedProperties.has("panX") || changedProperties.has("panY")) { - /** - * When a user panned the preview. - */ - this.dispatchEvent( - new CustomEvent<{ x: number; y: number }>("positionchange", { - detail: { - x: this.panX, - y: this.panY, - }, - }) - ); - } - - // Dispatch "nodeselect" event. - if (changedProperties.has("selectedNode")) { - /** - * When a user selected / unselected a node. - */ - this.dispatchEvent( - new CustomEvent<{ selectedNode: Figma.Node | null }>("nodeselect", { - detail: { - selectedNode: this.selectedNode, - }, - }) - ); - } - } - - #handleNodeClick = (node: SizedNode) => (ev: MouseEvent) => { - ev.preventDefault(); - ev.stopPropagation(); - - this.selectedNode = node; - }; - - // enable drag mode when holding the spacebar - #keyDown = (event: KeyboardEvent) => { - if (event.code === "Space" && !this.#isDragModeOn) { - this.#isDragModeOn = true; - document.body.style.cursor = "grab"; - } - }; - - // disable drag mode when space lets the spacebar go - #keyUp = (event: KeyboardEvent) => { - if (event.code === "Space" && this.#isDragModeOn) { - this.#isDragModeOn = false; - document.body.style.cursor = "auto"; - } - }; - - #listenToKeyboardEvents = () => { - document.addEventListener("keyup", this.#keyUp); - document.addEventListener("keydown", this.#keyDown); - }; - - #resetZoom = () => { - if (this.documentNode) { - // Set initial zoom level based on element size - const { width, height } = this.documentNode.absoluteBoundingBox; - const { - width: elementWidth, - height: elementHeight, - } = this.getBoundingClientRect(); - - const wDiff = elementWidth / (width + this.zoomMargin * 2); - const hDiff = elementHeight / (height + this.zoomMargin * 2); - - this.scale = Math.min(wDiff, hDiff, 1); - } - }; - } - - interface Margin { - top: number; - right: number; - bottom: number; - left: number; - } - - function getCanvasMargin( - documentNode: SizedNode, - nodes: readonly SizedNode[] - ): Margin { - const points = nodes.map((node) => { - if (!("effects" in node)) { - return { - top: node.absoluteBoundingBox.y, - right: node.absoluteBoundingBox.x + node.absoluteBoundingBox.width, - bottom: node.absoluteBoundingBox.y + node.absoluteBoundingBox.height, - left: node.absoluteBoundingBox.x, - }; - } - - const blurRadiuses = node.effects - .filter((effect) => effect.visible && effect.type === "LAYER_BLUR") - .map((effect) => effect.radius); - - const shadowMargins = node.effects - .filter( - ( - effect - ): effect is Figma.Effect & { - offset: NonNullable<Figma.Effect["offset"]>; - } => effect.visible && effect.type === "DROP_SHADOW" && !!effect.offset - ) - .map<Margin>((effect) => { - return { - left: effect.radius - effect.offset.x, - top: effect.radius - effect.offset.y, - right: effect.radius + effect.offset.x, - bottom: effect.radius + effect.offset.y, - }; - }); - - const margin: Margin = { - top: Math.max( - 0, - ...blurRadiuses, - ...shadowMargins.map((margin) => margin.top) - ), - right: Math.max( - 0, - ...blurRadiuses, - ...shadowMargins.map((margin) => margin.right) - ), - bottom: Math.max( - 0, - ...blurRadiuses, - ...shadowMargins.map((margin) => margin.bottom) - ), - left: Math.max( - 0, - ...blurRadiuses, - ...shadowMargins.map((margin) => margin.left) - ), - }; - - return { - top: node.absoluteBoundingBox.y - margin.top, - right: - node.absoluteBoundingBox.x + - node.absoluteBoundingBox.width + - margin.right, - bottom: - node.absoluteBoundingBox.y + - node.absoluteBoundingBox.height + - margin.bottom, - left: node.absoluteBoundingBox.x - margin.left, - }; - }); - - const bounds = { - top: Math.min(...points.map((p) => p.top)), - right: Math.max(...points.map((p) => p.right)), - bottom: Math.max(...points.map((p) => p.bottom)), - left: Math.min(...points.map((p) => p.left)), - }; - - return { - top: documentNode.absoluteBoundingBox.y - bounds.top, - right: - bounds.right - - documentNode.absoluteBoundingBox.x - - documentNode.absoluteBoundingBox.width, - bottom: - bounds.bottom - - documentNode.absoluteBoundingBox.y - - documentNode.absoluteBoundingBox.height, - left: documentNode.absoluteBoundingBox.x - bounds.left, - }; - } - - function flattenNode( - node: Figma.Node, - depth: number = 0 - ): readonly (SizedNode & { - depth: number; - })[] { - if (!("absoluteBoundingBox" in node)) { - return node.children.map((child) => flattenNode(child, depth + 1)).flat(); - } - - if (!("children" in node) || node.children.length === 0) { - return [{ ...node, depth }]; - } - - return [ - { ...node, depth }, - ...node.children.map((child) => flattenNode(child, depth + 1)).flat(), - ]; - }
packages/components/src/FigspecViewer/utils.ts
- @@ -1,4 +1,7 @@
  import * as Figma from "figma-js"; + import { CSSResultArray, LitElement } from "lit-element"; + + export type SizedNode = Extract<Figma.Node, { absoluteBoundingBox: any }>; export interface Point2D { x: number;
- @@ -158,3 +161,31 @@ */
  export function round(n: number) { return Math.round(n * 100) / 100; } + + /** + * Utility type for creating constructor type from an interface. + * @example + * function FooMixin<T extends Constructor<LitElement>>(Base: T): T & Constructor<MixinInterface> { + * // ... + * } + */ + export type Constructor<T> = new (...args: any[]) => T; + + export function extendStyles( + left: typeof LitElement.styles, + right: typeof LitElement.styles + ): CSSResultArray { + return [...stylesToArray(left), ...stylesToArray(right)]; + } + + function stylesToArray(styles: typeof LitElement.styles): CSSResultArray { + if (!styles) { + return []; + } + + if (styles instanceof Array) { + return styles; + } + + return [styles]; + }
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1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "BUTTON", + "style": { + "fontFamily": "Roboto", + "fontPostScriptName": null, + "fontWeight": 400, + "textAutoResize": "WIDTH_AND_HEIGHT", + "fontSize": 16, + "textAlignHorizontal": "CENTER", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 18.75, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + } + ], + "absoluteBoundingBox": { + "x": -91, + "y": -273, + "width": 126, + "height": 40 + }, + "constraints": { + "vertical": "SCALE", + "horizontal": "SCALE" + }, + "clipsContent": false, + "background": [ + { + "blendMode": "NORMAL", + "visible": false, + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "fills": [ + { + "blendMode": "NORMAL", + "visible": false, + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "INSIDE", + "backgroundColor": { + "r": 0, + "g": 0, + "b": 0, + "a": 0 + }, + "effects": [ + { + "type": "DROP_SHADOW", + "visible": true, + "color": { + "r": 0, + "g": 0, + "b": 0, + "a": 0.15000000596046448 + }, + "blendMode": "NORMAL", + "offset": { + "x": 0, + "y": 1 + }, + "radius": 2 + } + ], + "componentId": "2:5" + } + ], + "absoluteBoundingBox": { + "x": -91, + "y": -273, + "width": 126, + "height": 40 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "clipsContent": false, + "background": [ + { + "blendMode": "NORMAL", + "visible": false, + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "fills": [ + { + "blendMode": "NORMAL", + "visible": false, + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "INSIDE", + "backgroundColor": { + "r": 0, + "g": 0, + "b": 0, + "a": 0 + }, + "effects": [], + "componentId": "2:9" + }, + { + "id": "64:13", + "name": "Normal button", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -295, + "y": -329, + "width": 125, + "height": 15 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Normal button", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-ExtraBold", + "fontWeight": 800, + "textCase": "UPPER", + "fontSize": 12, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 14.0625, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + }, + { + "id": "64:14", + "name": "A button. Nothing special.", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -295, + "y": -308, + "width": 125, + "height": 30 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "A button. Nothing special.", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-Regular", + "fontWeight": 400, + "fontSize": 10, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "TOP", + "letterSpacing": 0, + "lineHeightPx": 11.71875, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + }, + { + "id": "64:17", + "name": "Active button", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -295, + "y": -193, + "width": 125, + "height": 15 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Active button", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-ExtraBold", + "fontWeight": 800, + "textCase": "UPPER", + "fontSize": 12, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 14.0625, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + }, + { + "id": "64:18", + "name": "Pressed button.", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -295, + "y": -172, + "width": 125, + "height": 30 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Pressed button.", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-Regular", + "fontWeight": 400, + "fontSize": 10, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "TOP", + "letterSpacing": 0, + "lineHeightPx": 11.71875, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + }, + { + "id": "64:15", + "name": "Disabled button", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -91, + "y": -329, + "width": 125, + "height": 15 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Disabled button", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-ExtraBold", + "fontWeight": 800, + "textCase": "UPPER", + "fontSize": 12, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 14.0625, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + }, + { + "id": "64:16", + "name": "Inactive button. No hover effects. Not clickable.", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": -91, + "y": -308, + "width": 125, + "height": 30 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.20000000298023224, + "g": 0.20000000298023224, + "b": 0.20000000298023224, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Inactive button. No hover effects. Not clickable.", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-Regular", + "fontWeight": 400, + "fontSize": 10, + "textAlignHorizontal": "LEFT", + "textAlignVertical": "TOP", + "letterSpacing": 0, + "lineHeightPx": 11.71875, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + } + ], + "absoluteBoundingBox": { + "x": -358, + "y": -348, + "width": 456, + "height": 270 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "clipsContent": true, + "background": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "INSIDE", + "backgroundColor": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + }, + "exportSettings": [ + { + "suffix": "", + "format": "PNG", + "constraint": { + "type": "SCALE", + "value": 1 + } + } + ], + "effects": [] + }, + { + "id": "93:14", + "name": "Page2", + "type": "FRAME", + "blendMode": "PASS_THROUGH", + "children": [ + { + "id": "93:18", + "name": "Page 2", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": 431, + "y": -224, + "width": 125, + "height": 15 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.4000000059604645, + "g": 0.4000000059604645, + "b": 0.4000000059604645, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Page 2", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-ExtraBold", + "fontWeight": 800, + "textCase": "UPPER", + "fontSize": 12, + "textAlignHorizontal": "RIGHT", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 14.0625, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + } + ], + "absoluteBoundingBox": { + "x": 138, + "y": -348, + "width": 456, + "height": 270 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "clipsContent": true, + "background": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "INSIDE", + "backgroundColor": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + }, + "effects": [] + }, + { + "id": "93:32", + "name": "Page3", + "type": "FRAME", + "blendMode": "PASS_THROUGH", + "children": [ + { + "id": "93:33", + "name": "Page 3", + "type": "TEXT", + "blendMode": "PASS_THROUGH", + "absoluteBoundingBox": { + "x": 927, + "y": -224, + "width": 125, + "height": 15 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 0.4000000059604645, + "g": 0.4000000059604645, + "b": 0.4000000059604645, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "OUTSIDE", + "effects": [], + "characters": "Page 3", + "style": { + "fontFamily": "Nunito Sans", + "fontPostScriptName": "NunitoSans-ExtraBold", + "fontWeight": 800, + "textCase": "UPPER", + "fontSize": 12, + "textAlignHorizontal": "RIGHT", + "textAlignVertical": "CENTER", + "letterSpacing": 0, + "lineHeightPx": 14.0625, + "lineHeightPercent": 100, + "lineHeightUnit": "INTRINSIC_%" + }, + "layoutVersion": 0, + "characterStyleOverrides": [], + "styleOverrideTable": {} + } + ], + "absoluteBoundingBox": { + "x": 634, + "y": -348, + "width": 456, + "height": 270 + }, + "constraints": { + "vertical": "TOP", + "horizontal": "LEFT" + }, + "clipsContent": true, + "background": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "fills": [ + { + "blendMode": "NORMAL", + "type": "SOLID", + "color": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + } + } + ], + "strokes": [], + "strokeWeight": 1, + "strokeAlign": "INSIDE", + "backgroundColor": { + "r": 1, + "g": 1, + "b": 1, + "a": 1 + }, + "effects": [] + } + ], + "backgroundColor": { + "r": 0.8980392217636108, + "g": 0.8980392217636108, + "b": 0.8980392217636108, + "a": 1 + }, + "prototypeStartNodeID": "64:1", + "prototypeDevice": { + "type": "NONE", + "rotation": "NONE" + } + } + ] + }, + "components": { + "2:5": { + "key": "cb3025cfa73c3757bc3e1bab6e34f9cbf49eb14a", + "name": "Button", + "description": "" + }, + "2:13": { + "key": "1526a8ddee35680a3ca5002e0c00605c0e7095cd", + "name": "Button__Active", + "description": "" + }, + "2:9": { + "key": "01a68bd6ca97410342a7b361aaed70e3f7784655", + "name": "Button__Disabled", + "description": "" + } + }, + "schemaVersion": 0, + "styles": {}, + "name": "storybook-addon-designs-sample", + "lastModified": "2020-10-08T07:37:10.103851Z", + "thumbnailUrl": "https://s3-alpha-sig.figma.com/thumbnails/40585359-6295-4d7d-93d1-9536b4890845?Expires=1604880000&Signature=e90P3U~o-qwGxqB~UQh1mbYpWu9i-K8kai~1rQLPquqDRVWLgkpYvv1iehcAuPothV5UfU5xWJUcvWsmM6kcp6zFPmhddSNBohrtoJcAC-nhJlaF7hIWCjvwCN4Pch7Ft2RB2rSIHCu0zwRcCF45Rfwz54D75ENP-Z~hIMpVgXKVljzetVK7QSP7e8hAr2rLvcgBEb~gewBeOlcypkVlWnbvq~UM6I0tSAbUcownYOO46WZRfWjuIoQ~m1TNSp5Xf~tO7Uwu7b8vNRzWpoCaMtIxQWbn0c0Pr8o4BBRX1glqHggEhdl8OEe8LVIpZ6BRx69zDVWilmHzsICbrgQboQ__&Key-Pair-Id=APKAINTVSUGEWH5XD5UA", + "version": "504642761", + "role": "owner" + }
packages/components/src/index.ts
- @@ -1,7 +1,13 @@
  - import { FigspecViewer } from "./FigspecViewer"; + import { FigspecFrameViewer } from "./FigspecViewer/FigspecFrameViewer"; + import { FigspecFileViewer } from "./FigspecViewer/FigspecFileViewer"; - if (!customElements.get("figspec-viewer")) { - customElements.define("figspec-viewer", FigspecViewer); + if (!customElements.get("figspec-file-viewer")) { + customElements.define("figspec-file-viewer", FigspecFileViewer); } - export { FigspecViewer } from "./FigspecViewer"; + if (!customElements.get("figspec-frame-viewer")) { + customElements.define("figspec-frame-viewer", FigspecFrameViewer); + } + + export { FigspecFrameViewer }; + export { FigspecFileViewer };
packages/react/README.md
- @@ -28,7 +28,7 @@ const logSelectedNode = (ev) => {
  console.log(ev.detail.selectedNode); }; - <FigspecViewer + <FigspecFrameViewer nodes={nodes} renderedImage={renderedImage} zoomMargin={200}
packages/react/src/index.stories.jsx
- @@ -1,17 +1,17 @@
  import { action } from "@storybook/addon-actions"; - import { FigspecViewer } from "."; + import { FigspecFrameViewer } from "."; import demoJson from "./__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/64:1.json"; import demoImage from "./__storybook__/demo-data/Klm6pxIZSaJFiOMX5FpTul9F/64:1.svg"; export default { - title: "FigspecViewer", - component: FigspecViewer, + title: "FigspecFrameViewer", + component: FigspecFrameViewer, }; const Template = (args) => ( - <FigspecViewer + <FigspecFrameViewer {...args} style={{ width: 500,
packages/react/src/index.tsx
- @@ -1,7 +1,10 @@
  import "@figspec/components"; // This line is treated as type-only import even without the `type` keyword. // The keyword is here to indicate the line does not triggers any side-effects. - import type { FigspecViewer as FigspecViewerElement } from "@figspec/components"; + import type { + FigspecFrameViewer as FigspecFrameViewerElement, + FigspecFileViewer as FigspecFileViewerElement, + } from "@figspec/components"; import { forwardRef, useCallback,
- @@ -10,8 +13,24 @@ useImperativeHandle,
  useState, } from "react"; - type ElementProps = Pick< - FigspecViewerElement, + const bindEvent = ( + element: HTMLElement, + event: string, + cb: (ev: CustomEvent) => void + ) => { + const listener = ((ev: CustomEvent) => { + cb(ev); + }) as EventListener; + + element.addEventListener(event, listener); + + return () => element.removeEventListener(event, listener); + }; + + // Frame viewer + + type FigspecFrameViewerElementProps = Pick< + FigspecFrameViewerElement, // HTML attributes | "id" | "className"
- @@ -25,31 +44,18 @@ | "panSpeed"
  | "zoomMargin" >; - export interface FigspecViewerProps extends ElementProps { + export interface FigspecFrameViewerProps + extends FigspecFrameViewerElementProps { onScaleChange?(ev: CustomEvent<{ scale: number }>): void; onPositionChange?(ev: CustomEvent<{ x: number; y: number }>): void; onNodeSelect?(ev: CustomEvent<{ selectedNode: unknown | null }>): void; } - type Ref = FigspecViewerElement | null | undefined; + type FigspecFrameViewerRef = FigspecFrameViewerElement | null | undefined; - const bindEvent = ( - element: HTMLElement, - event: string, - cb: (ev: CustomEvent) => void - ) => { - const listener = ((ev: CustomEvent) => { - cb(ev); - }) as EventListener; - - element.addEventListener(event, listener); - - return () => element.removeEventListener(event, listener); - }; - - export const FigspecViewer = forwardRef< - FigspecViewerElement, - FigspecViewerProps + export const FigspecFrameViewer = forwardRef< + FigspecFrameViewerElement, + FigspecFrameViewerProps >( ( {
- @@ -66,11 +72,15 @@ ...rest
  }, ref ) => { - const [refNode, setNode] = useState<FigspecViewerElement | null>(null); + const [refNode, setNode] = useState<FigspecFrameViewerElement | null>(null); - useImperativeHandle<Ref, Ref>(ref, () => refNode, [refNode]); + useImperativeHandle<FigspecFrameViewerRef, FigspecFrameViewerRef>( + ref, + () => refNode, + [refNode] + ); - const refCb = useCallback((node: FigspecViewerElement | null) => { + const refCb = useCallback((node: FigspecFrameViewerElement | null) => { if (node) { setNode(node);
- @@ -105,7 +115,106 @@ return bindEvent(refNode, "scalechange", onScaleChange);
  }, [refNode, onScaleChange]); return ( - <figspec-viewer + <figspec-frame-viewer + ref={refCb} + class={className} + pan-speed={panSpeed} + zoom-margin={zoomMargin} + zoom-speed={zoomSpeed} + {...rest} + /> + ); + } + ); + + // File viewer + + type FigspecFileViewerElementProps = Pick< + FigspecFileViewerElement, + // HTML attributes + | "id" + | "className" + | "style" + // Element props + | "documentNode" + | "renderedImages" + // Element attributes (will be converted to kebab-case) + | "zoomSpeed" + | "panSpeed" + | "zoomMargin" + >; + + export interface FigspecFileViewerProps extends FigspecFileViewerElementProps { + onScaleChange?(ev: CustomEvent<{ scale: number }>): void; + onPositionChange?(ev: CustomEvent<{ x: number; y: number }>): void; + onNodeSelect?(ev: CustomEvent<{ selectedNode: unknown | null }>): void; + } + + type FigspecFileViewerRef = FigspecFileViewerElement | null | undefined; + + export const FigspecFileViewer = forwardRef< + FigspecFileViewerElement, + FigspecFileViewerProps + >( + ( + { + documentNode, + renderedImages, + className, + panSpeed, + zoomMargin, + zoomSpeed, + onNodeSelect, + onPositionChange, + onScaleChange, + ...rest + }, + ref + ) => { + const [refNode, setNode] = useState<FigspecFileViewerElement | null>(null); + + useImperativeHandle<FigspecFileViewerRef, FigspecFileViewerRef>( + ref, + () => refNode, + [refNode] + ); + + const refCb = useCallback((node: FigspecFileViewerElement | null) => { + if (node) { + setNode(node); + + node.documentNode = documentNode; + node.renderedImages = renderedImages; + } + }, []); + + useEffect(() => { + if (!refNode) return; + + refNode.documentNode = documentNode; + refNode.renderedImages = renderedImages; + }, [refNode, documentNode, renderedImages]); + + useEffect(() => { + if (!refNode || !onNodeSelect) return; + + return bindEvent(refNode, "nodeselect", onNodeSelect); + }, [refNode, onNodeSelect]); + + useEffect(() => { + if (!refNode || !onPositionChange) return; + + return bindEvent(refNode, "positionchange", onPositionChange); + }, [refNode, onPositionChange]); + + useEffect(() => { + if (!refNode || !onScaleChange) return; + + return bindEvent(refNode, "scalechange", onScaleChange); + }, [refNode, onScaleChange]); + + return ( + <figspec-file-viewer ref={refCb} class={className} pan-speed={panSpeed}
packages/react/src/types.d.ts
- @@ -1,5 +1,6 @@
  declare namespace JSX { interface IntrinsicElements { - "figspec-viewer": any; + "figspec-frame-viewer": any; + "figspec-file-viewer": any; } }
scripts/generateStaticFigmaFile/fetchFile.mjs (new)
- @@ -0,0 +1,41 @@
  + import fetch from "node-fetch"; + + export async function fetchFile(client, fileKey) { + const fileResponse = await client.file(fileKey); + + const frames = listAllFrames(fileResponse.data.document); + + const imageResponse = await client.fileImages(fileKey, { + ids: frames.map((frame) => frame.id), + scale: 1, + format: "svg", + }); + + const images = []; + + for (const [nodeId, image] of Object.entries(imageResponse.data.images)) { + const res = await fetch(image); + + images.push({ + nodeId, + data: await res.buffer(), + }); + } + + return { + response: fileResponse.data, + images, + }; + } + + function listAllFrames(node) { + if ("absoluteBoundingBox" in node) { + return [node]; + } + + if (!node.children || node.children.length === 0) { + return []; + } + + return node.children.map(listAllFrames).flat(); + }
scripts/generateStaticFigmaFile/fetchNode.mjs (new)
- @@ -0,0 +1,42 @@
  + import fetch from "node-fetch"; + + export async function fetchNode(client, fileKey, nodeId) { + const [nodes, imageResponse] = await Promise.all([ + client.fileNodes(fileKey, { ids: [nodeId] }), + client.fileImages(fileKey, { + ids: [nodeId], + scale: 1, + format: "svg", + }), + ]); + + if (imageResponse.data.err) { + throw new Error(`Failed to render nodes: ${imageResponse.data.err}`); + } + + const [image] = await Promise.all( + Object.entries(imageResponse.data.images) + .filter((image) => image[0] === nodeId) + .map(async ([nodeId, image]) => { + if (!image) { + throw new Error(`Failed to render a node (node-id=${nodeId}`); + } + + const res = await fetch(image); + + if (res.status !== 200) { + throw new Error( + `Failed to fetch a rendered image: node-id=${nodeId}, url=${image}` + ); + } + + return res.buffer(); + }) + ); + + if (!image) { + throw new Error("Image not found."); + } + + return { response: nodes.data, image }; + }
scripts/generateStaticFigmaFile/index.mjs
- @@ -1,12 +1,14 @@
  import { program } from "commander"; import * as dotenv from "dotenv"; import * as Figma from "figma-js"; - import fetch from "node-fetch"; import * as fs from "fs/promises"; import * as path from "path"; import { URL, fileURLToPath } from "url"; import pkg from "./package.json"; + + import { fetchFile } from "./fetchFile.mjs"; + import { fetchNode } from "./fetchNode.mjs"; const isFigmaURL = (url) => /https:\/\/([w.-]+.)?figma.com\/(file|proto)\/([0-9a-zA-Z]{22,128})(?:\/.*)?$/.test(
- @@ -43,28 +45,43 @@
  const fileKey = url.pathname.split("/")[2]; const nodeId = url.searchParams.get("node-id") || null; - if (!nodeId) { - console.error("Fetching an entire file is not implemented yet."); - process.exit(1); - } - const figma = Figma.Client({ personalAccessToken: token, }); - const [nodes, images] = await Promise.all([ - figma.fileNodes(fileKey, { ids: [nodeId] }), - figma.fileImages(fileKey, { - ids: [nodeId], - scale: 1, - format: "svg", - }), - ]); + const files = await (async () => { + if (nodeId) { + const node = await fetchNode(figma, fileKey, nodeId); - if (images.data.err) { - console.error(`Failed to render nodes: ${images.data.err}`); - process.exit(1); - } + return [ + { + filename: `${nodeId}.json`, + data: program.pretty + ? JSON.stringify(node.response, null, 2) + : JSON.stringify(node.response), + }, + { + filename: `${nodeId}.svg`, + data: node.image, + }, + ]; + } + + const file = await fetchFile(figma, fileKey); + + return [ + { + filename: "file.json", + data: program.pretty + ? JSON.stringify(file.response, null, 2) + : JSON.stringify(file.response), + }, + ...file.images.map((image) => ({ + filename: `${image.nodeId}.svg`, + data: image.data, + })), + ]; + })(); const outDir = path.resolve( path.isAbsolute(program.outDir)
- @@ -89,31 +106,9 @@ recursive: true,
  }); await Promise.all( - Object.entries(images.data.images).map(async ([nodeId, image]) => { - if (!image) { - throw new Error(`Failed to render a node (node-id=${nodeId}`); - } - - const res = await fetch(image); - - if (res.status !== 200) { - throw new Error( - `Failed to fetch a rendered image: node-id=${nodeId}, url=${image}` - ); - } - - await fs.writeFile( - path.resolve(outDir, nodeId + ".svg"), - await res.buffer() - ); + files.map(async (file) => { + await fs.writeFile(path.resolve(outDir, file.filename), file.data); }) - ); - - await fs.writeFile( - path.resolve(outDir, `${nodeId}.json`), - program.pretty - ? JSON.stringify(nodes.data, null, 2) - : JSON.stringify(nodes.data) ); }
scripts/generateStaticFigmaFile/package.json
- @@ -2,6 +2,7 @@ {
  "name": "@figspec/generate-static-figma-file", "version": "0.1.0", "private": true, + "type": "module", "dependencies": { "commander": "^6.1.0", "figma-js": "^1.13.0",

Authored by: Shota Fuji
Authored at: 2020-11-18 09:43:46 +0900
Committed by: GitHub
Committed at: 2020-11-18 09:43:46 +0900
Signature: View
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