polycule-visualiser/index.html at main · alifeee/polycule-visualiser · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Polycule Visualiser</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link
      rel="alternate"
      type="application/rss+xml"
      title="polycule visualiser feed"
      href="https://server.alifeee.co.uk/polycule/rss"
    />

    <script>
      // use the file polycule.yaml instead if this website is on a server
      // if you open index.html locally as a file you can change the below
      const polycule_yaml = `
nodes:
- name: This
- name: is
- name: sourcecode
- name: website
- name: available
- name: an example
edges:
- from: This
  to: website
- from: website
  to: is
- from: an example
  to: is
- from: website
  to: sourcecode
  type: dashed
- from: sourcecode
  to: is
  type: dashed
- from: is
  to: available
  type: dashed
      `;
    </script>

    <script src="./public/jquery.min.js"></script>
    <script src="./public/js-yaml.min.js"></script>
    <script src="./springy/springy.js"></script>
    <script src="./springy/springyui.js"></script>
    <script>
      let lastClicked = null;
      function clearForm(form) {
        let inputs = document.querySelectorAll("input");
        for (input of inputs) {
          input.value = "";
        }
      }

      function pathCallBack(node1, node2) {
        return function (ev) {
          let form = document.getElementById("form");
          clearForm(form);
          let dc1 = document.getElementById("dcedge1");
          let dc2 = document.getElementById("dcedge2");
          dc1.value = node1;
          dc2.value = node2;
          lastClicked = null;
        };
      }
      function nodeCallBack(node) {
        return function (ev) {
          let form = document.getElementById("form");
          clearForm(form);
          if (!lastClicked || lastClicked == node) {
            let removenode = document.getElementById("removenode");
            removenode.value = node;
          } else {
            let addedge1 = document.getElementById("addedge1");
            let addedge2 = document.getElementById("addedge2");
            addedge1.value = lastClicked;
            addedge2.value = node;
          }
          lastClicked = node;
        };
      }

      function make_graph(json) {
        let graph = new Springy.Graph();

        const num_nodes = json["nodes"].length;
        const stroke_width = num_nodes > 5 ? 10 / num_nodes : 2;
        const text_size = num_nodes > 5 ? 40 / num_nodes : 8;

        json["nodes"].forEach((n) => {
          graph.addNodes(n.name);
        });
        json["edges"].forEach((e) => {
          graph.addEdges([e.from, e.to, { type: e.type }]);
        });

        // graph.loadJSON(json);
        //   var springy = jQuery("#springydemo").springy({
        //     graph: graph,
        //   });
        let layout = new Springy.Layout.ForceDirected(graph, 400.0, 400.0, 0.5);

        let svg = document.getElementById("svg");
        let rects = svg.getElementById("rects");
        let clickrects = svg.getElementById("clickrects");
        let edges = svg.getElementById("edges");
        let nodes = svg.getElementById("nodes");
        let svg_bbox = {
          bottomleft: { x: 10, y: 90 },
          topright: { x: 90, y: 10 },
        };

        function transform_coordinates(fromcorners, tocorners, point) {
          b1x = fromcorners.bottomleft.x;
          b1y = fromcorners.bottomleft.y;
          b2x = fromcorners.topright.x;
          b2y = fromcorners.topright.y;

          s1x = tocorners.bottomleft.x;
          s1y = tocorners.bottomleft.y;
          s2x = tocorners.topright.x;
          s2y = tocorners.topright.y;

          let transfomed = {
            x: s1x + ((s2x - s1x) / (b2x - b1x)) * (point.x - b1x),
            y: s1y + ((s2y - s1y) / (b2y - b1y)) * (point.y - b1y),
          };
          return transfomed;
        }

        function makePathBig(ev) {
          ev.target.setAttributeNS(null, "stroke-width", stroke_width * 2);
        }
        function makePathSmall(ev) {
          ev.target.setAttributeNS(null, "stroke-width", stroke_width);
        }

        let renderer = new Springy.Renderer(
          layout,
          function clear() {
            for (group of [nodes, edges, rects, clickrects]) {
              while (group.lastChild) {
                group.removeChild(group.lastChild);
              }
            }
          },
          function drawEdge(edge, p1, p2) {
            //   draw edge
            let boundingbox = layout.getBoundingBox();
            a1 = transform_coordinates(boundingbox, svg_bbox, p1);
            a2 = transform_coordinates(boundingbox, svg_bbox, p2);
            let NS = "http://www.w3.org/2000/svg";
            let path = document.createElementNS(NS, "path");
            path.setAttributeNS(
              null,
              "d",
              `M ${a1.x} ${a1.y} L ${a2.x} ${a2.y}`
            );
            path.setAttributeNS(null, "stroke", "#8878BC");
            if (edge.data?.type == "dashed") {
              path.setAttributeNS(null, "stroke-dasharray", stroke_width / 2);
            }
            path.setAttributeNS(null, "stroke-width", stroke_width);
            edges.appendChild(path);
            path.addEventListener("mouseenter", makePathBig);
            path.addEventListener("mouseleave", makePathSmall);
            path.addEventListener(
              "click",
              pathCallBack(edge.source.id, edge.target.id)
            );
          },
          function drawNode(node, p) {
            let boundingbox = layout.getBoundingBox();
            a = transform_coordinates(boundingbox, svg_bbox, p);
            let NS = "http://www.w3.org/2000/svg";

            let text = document.createElementNS(NS, "text");
            text.setAttributeNS(null, "x", a.x);
            text.setAttributeNS(null, "y", a.y);
            text.setAttributeNS(null, "font-size", text_size);
            text.setAttributeNS(null, "text-anchor", "middle");
            text.setAttributeNS(null, "alignment-baseline", "central");
            text.setAttributeNS(null, "dominant-baseline", "central");
            text.setAttributeNS(null, "fill", "#FFFFFF");
            let textNode = document.createTextNode(node.id);
            text.appendChild(textNode);
            nodes.appendChild(text);

            let bbox = text.getBBox();
            let width = bbox.width * 1.1;
            let height = bbox.height * 1.2;
            let rect = document.createElementNS(NS, "rect");
            rect.setAttributeNS(null, "x", a.x - width / 2);
            rect.setAttributeNS(null, "y", a.y - height / 2);
            rect.setAttributeNS(null, "width", width);
            rect.setAttributeNS(null, "height", height);
            rect.setAttributeNS(null, "fill", "#962727");
            rect.setAttributeNS(null, "rx", 1);

            rects.appendChild(rect);

            let clickrect = document.createElementNS(NS, "rect");
            clickrect.setAttributeNS(null, "x", a.x - width / 2);
            clickrect.setAttributeNS(null, "y", a.y - height / 2);
            clickrect.setAttributeNS(null, "width", width);
            clickrect.setAttributeNS(null, "height", height);
            clickrect.setAttributeNS(null, "fill", "#0000");
            clickrect.setAttributeNS(null, "rx", 1);
            clickrects.appendChild(clickrect);
            clickrect.addEventListener("click", nodeCallBack(node.id));
          }
        );
        renderer.start();
      }

      function show_error(error) {
        console.log("error !");
        console.log(error);
        const errorsec = document.querySelector(".errors");
        const pre = document.createElement("pre");
        pre.innerText =
          "something went wrong with loading yaml\n" + error.message;
        errorsec.appendChild(pre);
        errorsec.classList.remove("invisible");
      }

      document.addEventListener("DOMContentLoaded", (e) => {
        switch (window.location.protocol) {
          case "http:":
          case "https:":
            fetch("polycule.yaml", { cache: "no-store" })
              .then((data) => data.text())
              .then((text) => {
                const obj = jsyaml.load(text);
                return obj;
              })
              .catch(show_error)
              .then(make_graph);
            break;
          case "file:":
            let json;
            try {
              json = jsyaml.load(polycule_yaml);
            } catch (error) {
              show_error(error);
            }
            make_graph(json);
            break;
          default:
            console.log(
              "what kind of weird way did you find to open this file"
            );
        }
      });
    </script>
    <style>
      * {
        box-sizing: border-box;
      }
      html,
      body {
        margin: 0;
        padding: 0;
        max-height: 100vh;
      }

      @font-face {
        font-family: "Hockey is Life";
        src: url("./public/hockey.ttf");
      }

      body {
        font-family: "Hockey is Life", "BogFace", sans-serif;
        background: conic-gradient(
            from 45deg,
            #c44b4477 25%,
            #bc524d77 0% 50%,
            #af4d4877 0% 75%,
            #db797477 0%
          )
          50%/ 40px 60px;
        background-position: top;
      }
      button {
        font-family: "Hockey is Life", "BogFace", sans-serif;
      }
      #svg {
        width: 100%;
        max-width: 100%;
        max-height: 100%;
      }
      #svg > #edges > path {
        cursor: pointer;
      }
      #svg > #clickrects > rect {
        cursor: pointer;
      }

      .errors {
        position: absolute;
        top: 0;
        color: darkred;
        background: lightgray;
        border: 3px dashed red;
        margin: 1rem;
        padding: 1rem;
      }
      .errors.invisible {
        display: none;
      }

      section.edit {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      section.edit > button {
        width: max-content;
        margin: auto;
      }
      #form {
        display: none;
        margin: auto;
      }
      #form input {
        max-width: 6rem;
      }
      footer {
        margin-top: 1rem;
        text-align: center;
      }
    </style>
  </head>
  <body>
    <svg
      id="svg"
      width="500"
      height="500"
      viewBox="0 0 100 100"
      xmlns="http://www.w3.org/2000/svg"
    >
      <g id="edges"></g>
      <g id="rects"></g>
      <g id="nodes"></g>
      <g id="clickrects"></g>
    </svg>
    <section class="errors invisible"></section>
    <section class="edit">
      <button onclick='$("#form").toggle()'>edit...</button>
      <form action="./edit" method="post" id="form" autocomplete="off">
        <label for="addnode">Add new node</label>
        <input type="text" id="addnode" name="addnode" />

        <br />

        <label for="removenode">Remove node</label>
        <input type="text" id="removenode" name="removenode" />

        <br />

        <label for="addedge1">Connect</label>
        <input type="text" id="addedge1" name="addedge1" />
        <label for="addedge2">to</label>
        <input type="text" id="addedge2" name="addedge2" />

        <br />

        <label for="dashed">Dashed?</label>
        <input type="checkbox" id="dashed" name="dashed" />

        <br />

        <label for="dcedge1">Disconnect</label>
        <input type="text" id="dcedge1" name="dcedge1" />
        <label for="dcedge2">from</label>
        <input type="text" id="dcedge2" name="dcedge2" />

        <br />

        <label for="renamenode1">Rename node</label>
        <input type="text" id="renamenode1" name="renamenode1" />
        <label for="renamenode2">to</label>
        <input type="text" id="renamenode2" name="renamenode2" />

        <br />

        <button role="form">Change!</button>
      </form>
    </section>
  </body>
  <footer>
    by <a href="https://alifeee.co.uk">alifeee</a> · using
    <a href="http://getspringy.com/">Springy</a> ·
    <a href="https://github.com/alifeee/polycule-visualiser/">source code</a> ·
    <a href="./rss">RSS feed</a>
  </footer>
</html>