| | |
| | | import { ContentDetails } from "../../plugins/emitters/contentIndex" |
| | | import * as d3 from 'd3' |
| | | import { registerEscapeHandler } from "./handler" |
| | | import type { ContentDetails, ContentIndex } from "../../plugins/emitters/contentIndex" |
| | | import * as d3 from "d3" |
| | | import { registerEscapeHandler, removeAllChildren } from "./util" |
| | | import { FullSlug, SimpleSlug, getFullSlug, resolveRelative, simplifySlug } from "../../util/path" |
| | | |
| | | type NodeData = { |
| | | id: string, |
| | | text: string, |
| | | id: SimpleSlug |
| | | text: string |
| | | tags: string[] |
| | | } & d3.SimulationNodeDatum |
| | | |
| | | type LinkData = { |
| | | source: string, |
| | | target: string |
| | | source: SimpleSlug |
| | | target: SimpleSlug |
| | | } |
| | | |
| | | function relative(from: string, to: string) { |
| | | const pieces = [location.protocol, '//', location.host, location.pathname] |
| | | const url = pieces.join('').slice(0, -from.length) + to |
| | | return url |
| | | const localStorageKey = "graph-visited" |
| | | function getVisited(): Set<SimpleSlug> { |
| | | return new Set(JSON.parse(localStorage.getItem(localStorageKey) ?? "[]")) |
| | | } |
| | | |
| | | function removeAllChildren(node: HTMLElement) { |
| | | while (node.firstChild) { |
| | | node.removeChild(node.firstChild) |
| | | } |
| | | function addToVisited(slug: SimpleSlug) { |
| | | const visited = getVisited() |
| | | visited.add(slug) |
| | | localStorage.setItem(localStorageKey, JSON.stringify([...visited])) |
| | | } |
| | | |
| | | async function renderGraph(container: string, slug: string) { |
| | | async function renderGraph(container: string, fullSlug: FullSlug) { |
| | | const slug = simplifySlug(fullSlug) |
| | | const visited = getVisited() |
| | | const graph = document.getElementById(container) |
| | | if (!graph) return |
| | | removeAllChildren(graph) |
| | |
| | | centerForce, |
| | | linkDistance, |
| | | fontSize, |
| | | opacityScale |
| | | opacityScale, |
| | | removeTags, |
| | | showTags, |
| | | } = JSON.parse(graph.dataset["cfg"]!) |
| | | |
| | | const data = await fetchData |
| | | |
| | | const data: Map<SimpleSlug, ContentDetails> = new Map( |
| | | Object.entries<ContentDetails>(await fetchData).map(([k, v]) => [ |
| | | simplifySlug(k as FullSlug), |
| | | v, |
| | | ]), |
| | | ) |
| | | const links: LinkData[] = [] |
| | | for (const [src, details] of Object.entries<ContentDetails>(data)) { |
| | | const tags: SimpleSlug[] = [] |
| | | |
| | | const validLinks = new Set(data.keys()) |
| | | for (const [source, details] of data.entries()) { |
| | | const outgoing = details.links ?? [] |
| | | |
| | | for (const dest of outgoing) { |
| | | if (src in data && dest in data) { |
| | | links.push({ source: src, target: dest }) |
| | | if (validLinks.has(dest)) { |
| | | links.push({ source: source, target: dest }) |
| | | } |
| | | } |
| | | |
| | | if (showTags) { |
| | | const localTags = details.tags |
| | | .filter((tag) => !removeTags.includes(tag)) |
| | | .map((tag) => simplifySlug(("tags/" + tag) as FullSlug)) |
| | | |
| | | tags.push(...localTags.filter((tag) => !tags.includes(tag))) |
| | | |
| | | for (const tag of localTags) { |
| | | links.push({ source: source, target: tag }) |
| | | } |
| | | } |
| | | } |
| | | |
| | | const neighbourhood = new Set() |
| | | |
| | | const wl = [slug, "__SENTINEL"] |
| | | const neighbourhood = new Set<SimpleSlug>() |
| | | const wl: (SimpleSlug | "__SENTINEL")[] = [slug, "__SENTINEL"] |
| | | if (depth >= 0) { |
| | | while (depth >= 0 && wl.length > 0) { |
| | | // compute neighbours |
| | | const cur = wl.shift() |
| | | const cur = wl.shift()! |
| | | if (cur === "__SENTINEL") { |
| | | depth-- |
| | | wl.push("__SENTINEL") |
| | | } else { |
| | | neighbourhood.add(cur) |
| | | const outgoing = links.filter(l => l.source === cur) |
| | | const incoming = links.filter(l => l.target === cur) |
| | | const outgoing = links.filter((l) => l.source === cur) |
| | | const incoming = links.filter((l) => l.target === cur) |
| | | wl.push(...outgoing.map((l) => l.target), ...incoming.map((l) => l.source)) |
| | | } |
| | | } |
| | | } else { |
| | | links.flatMap(l => [l.source, l.target]).forEach((id) => neighbourhood.add(id)) |
| | | validLinks.forEach((id) => neighbourhood.add(id)) |
| | | if (showTags) tags.forEach((tag) => neighbourhood.add(tag)) |
| | | } |
| | | |
| | | const graphData: { nodes: NodeData[], links: LinkData[] } = { |
| | | nodes: Object.keys(data).filter(id => neighbourhood.has(id)).map(url => ({ id: url, text: data[url]?.title ?? url, tags: data[url]?.tags ?? [] })), |
| | | links: links.filter((l) => neighbourhood.has(l.source) && neighbourhood.has(l.target)) |
| | | const graphData: { nodes: NodeData[]; links: LinkData[] } = { |
| | | nodes: [...neighbourhood].map((url) => { |
| | | const text = url.startsWith("tags/") ? "#" + url.substring(5) : data.get(url)?.title ?? url |
| | | return { |
| | | id: url, |
| | | text: text, |
| | | tags: data.get(url)?.tags ?? [], |
| | | } |
| | | }), |
| | | links: links.filter((l) => neighbourhood.has(l.source) && neighbourhood.has(l.target)), |
| | | } |
| | | |
| | | const simulation: d3.Simulation<NodeData, LinkData> = d3 |
| | |
| | | const width = graph.offsetWidth |
| | | |
| | | const svg = d3 |
| | | .select<HTMLElement, NodeData>('#' + container) |
| | | .select<HTMLElement, NodeData>("#" + container) |
| | | .append("svg") |
| | | .attr("width", width) |
| | | .attr("height", height) |
| | | .attr('viewBox', [-width / 2 / scale, -height / 2 / scale, width / scale, height / scale]) |
| | | .attr("viewBox", [-width / 2 / scale, -height / 2 / scale, width / scale, height / scale]) |
| | | |
| | | // draw links between nodes |
| | | const link = svg |
| | |
| | | .join("line") |
| | | .attr("class", "link") |
| | | .attr("stroke", "var(--lightgray)") |
| | | .attr("stroke-width", 2) |
| | | .attr("stroke-width", 1) |
| | | |
| | | // svg groups |
| | | const graphNode = svg.append("g").selectAll("g").data(graphData.nodes).enter().append("g") |
| | | |
| | | // calculate radius |
| | | // calculate color |
| | | const color = (d: NodeData) => { |
| | | // TODO: does this handle the index page |
| | | const isCurrent = d.id === slug |
| | | return isCurrent ? "var(--secondary)" : "var(--gray)" |
| | | if (isCurrent) { |
| | | return "var(--secondary)" |
| | | } else if (visited.has(d.id) || d.id.startsWith("tags/")) { |
| | | return "var(--tertiary)" |
| | | } else { |
| | | return "var(--gray)" |
| | | } |
| | | } |
| | | |
| | | const drag = (simulation: d3.Simulation<NodeData, LinkData>) => { |
| | |
| | | d.fy = null |
| | | } |
| | | |
| | | const noop = () => { } |
| | | const noop = () => {} |
| | | return d3 |
| | | .drag<Element, NodeData>() |
| | | .on("start", enableDrag ? dragstarted : noop) |
| | |
| | | .attr("fill", color) |
| | | .style("cursor", "pointer") |
| | | .on("click", (_, d) => { |
| | | const targ = relative(slug, d.id) |
| | | window.spaNavigate(new URL(targ)) |
| | | const targ = resolveRelative(fullSlug, d.id) |
| | | window.spaNavigate(new URL(targ, window.location.toString())) |
| | | }) |
| | | .on("mouseover", function(_, d) { |
| | | const neighbours: string[] = data[slug].links ?? [] |
| | | const neighbourNodes = d3.selectAll<HTMLElement, NodeData>(".node").filter((d) => neighbours.includes(d.id)) |
| | | .on("mouseover", function (_, d) { |
| | | const neighbours: SimpleSlug[] = data.get(slug)?.links ?? [] |
| | | const neighbourNodes = d3 |
| | | .selectAll<HTMLElement, NodeData>(".node") |
| | | .filter((d) => neighbours.includes(d.id)) |
| | | const currentId = d.id |
| | | const linkNodes = d3 |
| | | .selectAll(".link") |
| | |
| | | neighbourNodes.transition().duration(200).attr("fill", color) |
| | | |
| | | // highlight links |
| | | linkNodes.transition().duration(200).attr("stroke", "var(--gray)") |
| | | linkNodes.transition().duration(200).attr("stroke", "var(--gray)").attr("stroke-width", 1) |
| | | |
| | | const bigFont = fontSize * 1.5 |
| | | |
| | |
| | | .select("text") |
| | | .transition() |
| | | .duration(200) |
| | | .attr('opacityOld', d3.select(parent).select('text').style("opacity")) |
| | | .style('opacity', 1) |
| | | .style('font-size', bigFont + 'em') |
| | | .attr("opacityOld", d3.select(parent).select("text").style("opacity")) |
| | | .style("opacity", 1) |
| | | .style("font-size", bigFont + "em") |
| | | }) |
| | | .on("mouseleave", function(_, d) { |
| | | .on("mouseleave", function (_, d) { |
| | | const currentId = d.id |
| | | const linkNodes = d3 |
| | | .selectAll(".link") |
| | |
| | | .select("text") |
| | | .transition() |
| | | .duration(200) |
| | | .style('opacity', d3.select(parent).select('text').attr("opacityOld")) |
| | | .style('font-size', fontSize + 'em') |
| | | .style("opacity", d3.select(parent).select("text").attr("opacityOld")) |
| | | .style("font-size", fontSize + "em") |
| | | }) |
| | | // @ts-ignore |
| | | .call(drag(simulation)) |
| | |
| | | const labels = graphNode |
| | | .append("text") |
| | | .attr("dx", 0) |
| | | .attr("dy", (d) => nodeRadius(d) + 8 + "px") |
| | | .attr("dy", (d) => -nodeRadius(d) + "px") |
| | | .attr("text-anchor", "middle") |
| | | .text((d) => data[d.id]?.title || (d.id.charAt(1).toUpperCase() + d.id.slice(2)).replace("-", " ")) |
| | | .style('opacity', (opacityScale - 1) / 3.75) |
| | | .text((d) => d.text) |
| | | .style("opacity", (opacityScale - 1) / 3.75) |
| | | .style("pointer-events", "none") |
| | | .style('font-size', fontSize + 'em') |
| | | .style("font-size", fontSize + "em") |
| | | .raise() |
| | | // @ts-ignore |
| | | .call(drag(simulation)) |
| | |
| | | .on("zoom", ({ transform }) => { |
| | | link.attr("transform", transform) |
| | | node.attr("transform", transform) |
| | | const scale = transform.k * opacityScale; |
| | | const scale = transform.k * opacityScale |
| | | const scaledOpacity = Math.max((scale - 1) / 3.75, 0) |
| | | labels.attr("transform", transform).style("opacity", scaledOpacity) |
| | | }), |
| | |
| | | .attr("y1", (d: any) => d.source.y) |
| | | .attr("x2", (d: any) => d.target.x) |
| | | .attr("y2", (d: any) => d.target.y) |
| | | node |
| | | .attr("cx", (d: any) => d.x) |
| | | .attr("cy", (d: any) => d.y) |
| | | labels |
| | | .attr("x", (d: any) => d.x) |
| | | .attr("y", (d: any) => d.y) |
| | | node.attr("cx", (d: any) => d.x).attr("cy", (d: any) => d.y) |
| | | labels.attr("x", (d: any) => d.x).attr("y", (d: any) => d.y) |
| | | }) |
| | | } |
| | | |
| | | function renderGlobalGraph() { |
| | | const slug = document.body.dataset["slug"]! |
| | | renderGraph("global-graph-container", slug) |
| | | const slug = getFullSlug(window) |
| | | const container = document.getElementById("global-graph-outer") |
| | | const sidebar = container?.closest(".sidebar") as HTMLElement |
| | | container?.classList.add("active") |
| | | if (sidebar) { |
| | | sidebar.style.zIndex = "1" |
| | | } |
| | | |
| | | renderGraph("global-graph-container", slug) |
| | | |
| | | function hideGlobalGraph() { |
| | | container?.classList.remove("active") |
| | | const graph = document.getElementById("global-graph-container") |
| | | if (sidebar) { |
| | | sidebar.style.zIndex = "unset" |
| | | } |
| | | if (!graph) return |
| | | removeAllChildren(graph) |
| | | } |
| | |
| | | registerEscapeHandler(container, hideGlobalGraph) |
| | | } |
| | | |
| | | document.addEventListener("nav", async (e: unknown) => { |
| | | const slug = (e as CustomEventMap["nav"]).detail.url |
| | | document.addEventListener("nav", async (e: CustomEventMap["nav"]) => { |
| | | const slug = e.detail.url |
| | | addToVisited(slug) |
| | | await renderGraph("graph-container", slug) |
| | | |
| | | const containerIcon = document.getElementById("global-graph-icon") |
| | | containerIcon?.removeEventListener("click", renderGlobalGraph) |
| | | containerIcon?.addEventListener("click", renderGlobalGraph) |
| | | window.addCleanup(() => containerIcon?.removeEventListener("click", renderGlobalGraph)) |
| | | }) |