Add shared graph viewer to all chapters

1 files changed, 0 insertions, 25 deletions

diff --git a/graph/web/legacy.js b/graph/web/legacy.js
deleted file mode 100644
index 4c1b7ef8..00000000
--- a/graph/web/legacy.js
+++ /dev/null
@@ -1,25 +0,0 @@
-// Only earlier chapters need Graphviz. Load it on the first bare-DOT frame.
-let dotView;
-async function drawDot(dot) {
-  if (!dotView) {
-    dotView = (async () => {
-      for (const src of ["vendor/graphviz.umd.js", "vendor/d3-graphviz.js"]) {
-        await new Promise((resolve, reject) => {
-          const script = document.createElement("script");
-          script.src = src; script.onload = resolve;
-          script.onerror = () => reject(new Error("Cannot load " + src));
-          document.head.append(script);
-        });
-      }
-      return new Promise((resolve, reject) => {
-        const view = d3.select("#dot").graphviz({useWorker: false, fit: true})
-          .onerror(reject).on("initEnd", () => resolve(view))
-          .transition(() => d3.transition("main").ease(d3.easeLinear).duration(500));
-      });
-    })();
-  }
-  const view = await dotView;
-  const host = document.getElementById("dot");
-  view.width(host.clientWidth).height(host.clientHeight);
-  await new Promise((resolve, reject) => view.onerror(reject).renderDot(dot, resolve));
-}