Aaron Pham
2024-03-04 cec3662c748ff6abbe8570632e9287085a2a51fc
feat(graph): focusOnHover (#954)

by default, globalGraph will enable focusOnHover, similar to Obsidian.

---------

Signed-off-by: Aaron <29749331+aarnphm@users.noreply.github.com>
2 files modified
30 ■■■■ changed files
quartz/components/Graph.tsx 3 ●●●●● patch | view | raw | blame | history
quartz/components/scripts/graph.inline.ts 27 ●●●● patch | view | raw | blame | history
quartz/components/Graph.tsx
@@ -17,6 +17,7 @@
  opacityScale: number
  removeTags: string[]
  showTags: boolean
  focusOnHover?: boolean
}
interface GraphOptions {
@@ -37,6 +38,7 @@
    opacityScale: 1,
    showTags: true,
    removeTags: [],
    focusOnHover: false,
  },
  globalGraph: {
    drag: true,
@@ -50,6 +52,7 @@
    opacityScale: 1,
    showTags: true,
    removeTags: [],
    focusOnHover: true,
  },
}
quartz/components/scripts/graph.inline.ts
@@ -44,6 +44,7 @@
    opacityScale,
    removeTags,
    showTags,
    focusOnHover,
  } = JSON.parse(graph.dataset["cfg"]!)
  const data: Map<SimpleSlug, ContentDetails> = new Map(
@@ -189,6 +190,8 @@
    return 2 + Math.sqrt(numLinks)
  }
  let connectedNodes: SimpleSlug[] = []
  // draw individual nodes
  const node = graphNode
    .append("circle")
@@ -202,17 +205,25 @@
      window.spaNavigate(new URL(targ, window.location.toString()))
    })
    .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")
        .filter((d: any) => d.source.id === currentId || d.target.id === currentId)
      // highlight neighbour nodes
      neighbourNodes.transition().duration(200).attr("fill", color)
      if (focusOnHover) {
        // fade out non-neighbour nodes
        connectedNodes = linkNodes.data().flatMap((d: any) => [d.source.id, d.target.id])
        d3.selectAll<HTMLElement, NodeData>(".link")
          .transition()
          .duration(200)
          .style("opacity", 0.2)
        d3.selectAll<HTMLElement, NodeData>(".node")
          .filter((d) => !connectedNodes.includes(d.id))
          .transition()
          .duration(200)
          .style("opacity", 0.2)
      }
      // highlight links
      linkNodes.transition().duration(200).attr("stroke", "var(--gray)").attr("stroke-width", 1)
@@ -231,6 +242,10 @@
        .style("font-size", bigFont + "em")
    })
    .on("mouseleave", function (_, d) {
      if (focusOnHover) {
        d3.selectAll<HTMLElement, NodeData>(".link").transition().duration(200).style("opacity", 1)
        d3.selectAll<HTMLElement, NodeData>(".node").transition().duration(200).style("opacity", 1)
      }
      const currentId = d.id
      const linkNodes = d3
        .selectAll(".link")