docs: interactive mermaid diagrams (render by default + source toggle + copy) #49
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| /* Eureka deployment docs — diagram enhancer. | ||
| * | ||
| * Loaded as a CLASSIC script (not an ES module) on purpose: Chrome blocks | ||
| * `<script type="module">` from file:// origins (CORS, origin "null"), which | ||
| * made the mermaid diagrams show up as raw text when the docs are opened as | ||
| * local files. A classic script + the UMD mermaid build renders reliably from | ||
| * file:// and over http. | ||
| * | ||
| * For each `.diagram` panel it: | ||
| * 1. captures the raw mermaid source (before mermaid replaces it with SVG), | ||
| * 2. renders the diagram (default view), | ||
| * 3. adds a Diagram/Source toggle and a Copy-source button. | ||
| */ | ||
| (function () { | ||
| if (typeof mermaid === "undefined") { | ||
| console.error("mermaid failed to load"); | ||
| return; | ||
| } | ||
|
|
||
| mermaid.initialize({ | ||
| startOnLoad: false, | ||
| securityLevel: "loose", | ||
| theme: "base", | ||
| fontFamily: "'IBM Plex Mono', monospace", | ||
| themeVariables: { | ||
| darkMode: true, | ||
| background: "#0e131c", | ||
| fontFamily: "'IBM Plex Mono', monospace", | ||
| fontSize: "14px", | ||
| primaryColor: "#18212f", | ||
| primaryBorderColor: "#c9f24e", | ||
| primaryTextColor: "#e9eef5", | ||
| secondaryColor: "#121927", | ||
| secondaryBorderColor: "#5fd5ee", | ||
| secondaryTextColor: "#e9eef5", | ||
| tertiaryColor: "#0e131c", | ||
| tertiaryBorderColor: "#7e8da0", | ||
| tertiaryTextColor: "#b9c4d2", | ||
| lineColor: "#5fd5ee", | ||
| textColor: "#b9c4d2", | ||
| mainBkg: "#18212f", | ||
| nodeBorder: "#c9f24e", | ||
| clusterBkg: "rgba(95,213,238,0.05)", | ||
| clusterBorder: "rgba(150,180,220,0.25)", | ||
| titleColor: "#e9eef5", | ||
| edgeLabelBackground: "#0a0e14", | ||
| actorBkg: "#18212f", | ||
| actorBorder: "#b69cff", | ||
| actorTextColor: "#e9eef5", | ||
| actorLineColor: "#7e8da0", | ||
| signalColor: "#5fd5ee", | ||
| signalTextColor: "#b9c4d2", | ||
| labelBoxBkgColor: "#121927", | ||
| labelBoxBorderColor: "#5fd5ee", | ||
| labelTextColor: "#e9eef5", | ||
| loopTextColor: "#b9c4d2", | ||
| noteBkgColor: "rgba(255,180,84,0.12)", | ||
| noteBorderColor: "#ffb454", | ||
| noteTextColor: "#e9eef5", | ||
| activationBkgColor: "#18212f", | ||
| activationBorderColor: "#c9f24e", | ||
| nodeTextColor: "#e9eef5", | ||
| }, | ||
| flowchart: { curve: "basis", htmlLabels: true, padding: 14 }, | ||
| sequence: { actorMargin: 46, messageAlign: "center", mirrorActors: false, useMaxWidth: true }, | ||
| }); | ||
|
|
||
| function enhance(panel) { | ||
| var pre = panel.querySelector("pre.mermaid"); | ||
| if (!pre) return; | ||
|
|
||
| var source = pre.textContent.replace(/^\s*\n/, "").replace(/\s+$/, ""); | ||
|
|
||
| // Views: rendered graph (holds the mermaid <pre>) and a raw-source view. | ||
| var graph = document.createElement("div"); | ||
| graph.className = "dgm-graph"; | ||
| graph.appendChild(pre); | ||
|
|
||
| var srcView = document.createElement("pre"); | ||
| srcView.className = "dgm-source"; | ||
| srcView.hidden = true; | ||
| var code = document.createElement("code"); | ||
| code.textContent = source; | ||
| srcView.appendChild(code); | ||
|
|
||
| var body = document.createElement("div"); | ||
| body.className = "dgm-body"; | ||
| body.appendChild(graph); | ||
| body.appendChild(srcView); | ||
|
|
||
| // Toolbar: segmented toggle + copy. | ||
| var bar = document.createElement("div"); | ||
| bar.className = "dgm-bar"; | ||
| bar.innerHTML = | ||
| '<div class="dgm-seg" role="tablist">' + | ||
| '<button class="dgm-tab is-active" data-view="graph" aria-selected="true">Diagram</button>' + | ||
| '<button class="dgm-tab" data-view="source" aria-selected="false">Source</button>' + | ||
| "</div>" + | ||
| '<button class="dgm-copy" type="button" aria-label="Copy Mermaid source">Copy</button>'; | ||
|
|
||
| var cap = panel.querySelector(".cap"); | ||
| if (cap) cap.appendChild(bar); | ||
| else panel.insertBefore(bar, panel.firstChild); | ||
| panel.appendChild(body); | ||
|
|
||
| var tabs = bar.querySelectorAll(".dgm-tab"); | ||
| tabs.forEach(function (tab) { | ||
| tab.addEventListener("click", function () { | ||
| var view = tab.getAttribute("data-view"); | ||
| tabs.forEach(function (t) { | ||
| var active = t === tab; | ||
| t.classList.toggle("is-active", active); | ||
| t.setAttribute("aria-selected", active ? "true" : "false"); | ||
| }); | ||
| graph.hidden = view !== "graph"; | ||
| srcView.hidden = view !== "source"; | ||
| }); | ||
| }); | ||
|
|
||
| var copy = bar.querySelector(".dgm-copy"); | ||
| copy.addEventListener("click", function () { | ||
| var done = function () { | ||
| copy.textContent = "Copied"; | ||
| copy.classList.add("ok"); | ||
| setTimeout(function () { | ||
| copy.textContent = "Copy"; | ||
| copy.classList.remove("ok"); | ||
| }, 1400); | ||
| }; | ||
| if (navigator.clipboard && navigator.clipboard.writeText) { | ||
| navigator.clipboard.writeText(source).then(done, fallback); | ||
| } else { | ||
| fallback(); | ||
| } | ||
| function fallback() { | ||
| var range = document.createRange(); | ||
| range.selectNodeContents(code); | ||
| var sel = window.getSelection(); | ||
| sel.removeAllRanges(); | ||
| sel.addRange(range); | ||
| try { document.execCommand("copy"); } catch (e) { /* ignore */ } | ||
| sel.removeAllRanges(); | ||
| done(); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| document.addEventListener("DOMContentLoaded", function () { | ||
| document.querySelectorAll(".diagram").forEach(enhance); | ||
| // Render every mermaid block (now nested inside .dgm-graph). Pass an | ||
| // explicit querySelector — some mermaid builds throw if run() is given an | ||
| // options object without `nodes`/`querySelector` instead of defaulting. | ||
| mermaid.run({ querySelector: ".dgm-graph pre.mermaid" }).catch(function (err) { | ||
| console.error("mermaid render error:", err); | ||
| }); | ||
| }); | ||
| })(); | ||
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Avoid showing “Copied” when fallback copy fails.
done()is called unconditionally in the fallback path, so users can see success even if copy did not happen (Line 141). Gate success on actual copy result.Proposed fix
function fallback() { var range = document.createRange(); range.selectNodeContents(code); var sel = window.getSelection(); - sel.removeAllRanges(); - sel.addRange(range); - try { document.execCommand("copy"); } catch (e) { /* ignore */ } - sel.removeAllRanges(); - done(); + if (!sel) return; + sel.removeAllRanges(); + sel.addRange(range); + var copied = false; + try { copied = document.execCommand("copy"); } catch (e) { copied = false; } + sel.removeAllRanges(); + if (copied) done(); }🤖 Prompt for AI Agents