graph-sparrow/index.html at main · alejp1998/graph-sparrow · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Graph Sparrow — Interactive Graph Explorer</title>
    <link rel="icon" type="image/svg+xml" href="favicon.svg" />
    <link rel="alternate icon" href="favicon.png" />
    <script>
      (function () {
        var saved = localStorage.getItem("theme");
        var theme =
          saved ||
          (window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches
            ? "dark"
            : "light");
        document.documentElement.setAttribute("data-theme", theme);
      })();
    </script>
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;600;700&family=JetBrains+Mono:wght@400;600&family=Space+Grotesk:wght@500;700&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <header>
      <div class="brand">
        <div class="brand-logo">
          <svg viewBox="0 0 24 24" width="22" height="22" fill="none">
            <!-- Edges -->
            <line
              x1="6"
              y1="6"
              x2="12"
              y2="12"
              stroke="#0F172A"
              stroke-width="1.8"
              stroke-linecap="round"
            />
            <line
              x1="18"
              y1="6"
              x2="12"
              y2="12"
              stroke="#0F172A"
              stroke-width="1.8"
              stroke-linecap="round"
            />
            <line
              x1="12"
              y1="12"
              x2="7"
              y2="18"
              stroke="#0F172A"
              stroke-width="1.8"
              stroke-linecap="round"
            />
            <line
              x1="12"
              y1="12"
              x2="17"
              y2="18"
              stroke="#0F172A"
              stroke-width="1.8"
              stroke-linecap="round"
            />
            <line
              x1="6"
              y1="6"
              x2="18"
              y2="6"
              stroke="#0F172A"
              stroke-width="1.6"
              stroke-dasharray="2,1.5"
            />
            <line
              x1="7"
              y1="18"
              x2="17"
              y2="18"
              stroke="#0F172A"
              stroke-width="1.8"
              stroke-linecap="round"
            />
            <!-- Nodes -->
            <circle cx="6" cy="6" r="2.2" fill="#0F172A" />
            <circle cx="18" cy="6" r="2.2" fill="#0F172A" />
            <circle cx="12" cy="12" r="3" fill="#0F172A" />
            <circle cx="12" cy="12" r="1.1" fill="#FFFFFF" />
            <circle cx="7" cy="18" r="2.2" fill="#0F172A" />
            <circle cx="17" cy="18" r="2.2" fill="#0F172A" />
          </svg>
        </div>
        <div>
          <div class="brand-title">Graph Sparrow</div>
          <div class="brand-sub">
            Interactive graph explorer · force-directed layout · jQuery Arrows
          </div>
        </div>
      </div>
      <div class="header-actions">
        <button class="btn" id="btn-guide">📖 Guide</button>
        <button class="btn" id="reload-graph-layout">🎯 Re-layout</button>
        <button class="btn" id="export-graph">⬇ Export JSON</button>
        <button class="btn" id="import-graph">⬆ Import JSON</button>
        <button class="btn" id="btn-theme">☀️/🌙 Theme</button>
      </div>
    </header>

    <main>
      <aside class="sidebar">
        <section class="panel">
          <div class="panel-title">➕ Add Node</div>
          <input id="node-id" placeholder="unique id" />
          <input id="node-text" placeholder="label (optional)" />
          <select id="node-class">
            <option value="green-node">green-node</option>
            <option value="blue-node">blue-node</option>
            <option value="red-node">red-node</option>
            <option value="cyan-node">cyan-node</option>
            <option value="amber-node">amber-node</option>
          </select>
          <button class="btn btn-add" id="add-node">Add node</button>
        </section>

        <section class="panel">
          <div class="panel-title">🔗 Add Edge</div>
          <select id="edge-src-node-id"></select>
          <select id="edge-dst-node-id"></select>
          <select id="edge-class">
            <option value="blue-dashed-edge">blue-dashed-edge</option>
            <option value="purple-edge">purple-edge</option>
            <option value="orange-edge">orange-edge</option>
            <option value="green-edge">green-edge</option>
            <option value="rose-edge">rose-edge</option>
          </select>
          <input id="edge-text" placeholder="label (optional)" />
          <button class="btn btn-add" id="add-edge">Add edge</button>
        </section>

        <section class="panel">
          <div class="panel-title">🧲 Physics</div>
          <label class="slider-label">Stiffness <span id="stiffness-val">500</span></label>
          <input type="range" id="stiffness" min="100" max="1200" step="50" value="500" />
          <label class="slider-label">Repulsion <span id="repulsion-val">2000</span></label>
          <input type="range" id="repulsion" min="500" max="5000" step="100" value="2000" />
          <label class="slider-label">Damping <span id="damping-val">0.5</span></label>
          <input type="range" id="damping" min="0.1" max="0.9" step="0.05" value="0.5" />
        </section>
      </aside>

      <section class="graph-stage">
        <div id="svg-arrows"></div>
        <div id="graph-viewer"></div>
        <div id="hidden-nodes" class="hidden-pool"></div>
        <div class="hint">drag nodes · toggle categories · re-layout with spring physics</div>
      </section>

      <aside class="sidebar sidebar-right">
        <section class="panel" id="node-toggles-panel">
          <div class="panel-title">
            <span>👁️ Node Categories</span>
            <span class="panel-subtitle">click to hide/show</span>
          </div>
          <div id="node-toggles"></div>
        </section>

        <section class="panel" id="edge-toggles-panel">
          <div class="panel-title">
            <span>👁️ Edge Categories</span>
            <span class="panel-subtitle">click to hide/show</span>
          </div>
          <div id="edge-toggles"></div>
        </section>
      </aside>
    </main>

    <div id="guide" class="modal hidden">
      <div class="modal-backdrop" data-close-guide></div>
      <div class="modal-card">
        <button class="modal-close" data-close-guide title="Close">✕</button>
        <div class="modal-title">📖 Graph Sparrow — Guide</div>

        <section class="guide-section">
          <h3>What it is</h3>
          <p>
            <b>Graph Sparrow</b> is an interactive <b>graph editor and visualizer</b>: build
            networks of nodes and edges, let a <b>force-directed physics simulation</b> lay them
            out, group them by category, and share them as JSON. Connectors are drawn by the
            <a href="https://github.com/alejp1998/jquery-arrows" target="_blank" rel="noopener"
              >jQuery Arrows</a
            >
            plugin and follow the nodes as you drag them.
          </p>
        </section>

        <section class="guide-section">
          <h3>How it works</h3>
          <ul>
            <li>
              <b>Force-directed layout</b> — the Springy physics engine simulates springs (edges)
              and repulsion (nodes); <b>Stiffness</b>, <b>Repulsion</b>, and <b>Damping</b> sliders
              tune the feel, and 🎯 Re-layout runs 400 deterministic ticks.
            </li>
            <li>
              <b>Live SVG arrows</b> — colored, labeled connectors updated at 60 FPS and instantly
              during drags.
            </li>
            <li>
              <b>Category system</b> — nodes and edges carry color classes; the right panel toggles
              entire categories with one click (live count badges).
            </li>
            <li>
              <b>JSON serialization</b> — export/import the whole graph for sharing or backup.
            </li>
            <li>
              <b>Node lifecycle</b> — hide/show moves nodes to a hidden pool; removing a node
              cascades to its incident edges.
            </li>
            <li>
              <b>Cockpit UI</b> — 100vh locked layout with system-aware theme, no page scrollbars.
            </li>
          </ul>
        </section>

        <section class="guide-section">
          <h3>How to use this demo</h3>
          <ul>
            <li><b>Drag nodes</b> — arrows follow in real time.</li>
            <li>
              <b>🎯 Re-layout</b> — re-run the physics simulation; tune the sliders first for
              different spreads.
            </li>
            <li>
              <b>➕ Add Node / 🔗 Add Edge</b> — extend the graph through the left sidebar forms.
            </li>
            <li>
              <b>👁️ Node / Edge Categories</b> — the right panel hides or shows whole categories.
            </li>
            <li><b>⬇ Export / ⬆ Import</b> — save the graph as JSON and reload it later.</li>
            <li><b>🌙/☀️ Theme</b> — follows your system preference by default.</li>
          </ul>
        </section>
      </div>
    </div>

    <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
    <script src="https://code.jquery.com/ui/1.13.3/jquery-ui.min.js"></script>
    <script src="jquery.arrows.js"></script>
    <script src="springy.js"></script>
    <script src="addnodesedges.js"></script>
    <script src="hideshownodes.js"></script>
    <script src="edgenodetoggles.js"></script>
    <script src="reloadgraphlayout.js"></script>

    <script>
      $(document).ready(function () {
        // Seed an example graph
        [
          { id: "sensor-1", category: "cyan-node", text: "Temp sensor" },
          { id: "sensor-2", category: "cyan-node", text: "Humidity sensor" },
          { id: "edge-gw", category: "blue-node", text: "Edge gateway" },
          { id: "cloud", category: "purple-node", text: "Cloud broker" },
          { id: "dt", category: "green-node", text: "Digital Twin" },
        ].forEach(addNode);

        [
          {
            srcNodeId: "sensor-1",
            dstNodeId: "edge-gw",
            category: "blue-dashed-edge",
            text: "MQTT pub",
          },
          {
            srcNodeId: "sensor-2",
            dstNodeId: "edge-gw",
            category: "blue-dashed-edge",
            text: "MQTT pub",
          },
          {
            srcNodeId: "edge-gw",
            dstNodeId: "cloud",
            category: "purple-edge",
            text: "MQTT bridge",
          },
          { srcNodeId: "cloud", dstNodeId: "dt", category: "green-edge", text: "state sync" },
          { srcNodeId: "dt", dstNodeId: "sensor-1", category: "orange-edge", text: "control" },
        ].forEach(addEdge);

        // Auto-run the force-directed layout so nodes distribute immediately
        // (must run AFTER edges exist — reloadGraphLayout hides unconnected nodes)
        reloadGraphLayout();

        // Node / edge add buttons
        $("#add-node").on("click", function () {
          var id = $("#node-id").val().trim();
          if (!id) return alert("Node id is empty! Write a unique node id.");
          if (window.nodes[id]) return alert("Node id already exists!");
          addNode({
            id: id,
            category: $("#node-class").val(),
            text: $("#node-text").val(),
          });
          $("#node-id").val("");
          $("#node-text").val("");
        });

        $("#add-edge").on("click", function () {
          var src = $("#edge-src-node-id").val();
          var dst = $("#edge-dst-node-id").val();
          if (!src || !dst) return alert("Both endpoints are required.");
          if (src === dst) return alert("Source and destination must differ.");
          if (
            window.edges.some(function (e) {
              return e.id === src + "-" + dst || e.id === dst + "-" + src;
            })
          ) {
            return alert("Edge already exists!");
          }
          addEdge({
            srcNodeId: src,
            dstNodeId: dst,
            category: $("#edge-class").val(),
            text: $("#edge-text").val(),
          });
          $("#edge-text").val("");
        });

        // Export / import
        $("#export-graph").on("click", function () {
          var blob = new Blob([exportGraph()], { type: "application/json" });
          var a = document.createElement("a");
          a.href = URL.createObjectURL(blob);
          a.download = "graph-sparrow-export.json";
          a.click();
          URL.revokeObjectURL(a.href);
        });

        $("#import-graph").on("click", function () {
          var input = document.createElement("input");
          input.type = "file";
          input.accept = "application/json";
          input.onchange = function (e) {
            var file = e.target.files[0];
            if (!file) return;
            var reader = new FileReader();
            reader.onload = function () {
              try {
                importGraph(reader.result);
                alert("Graph imported successfully!");
              } catch (err) {
                alert("Invalid graph JSON: " + err.message);
              }
            };
            reader.readAsText(file);
          };
          input.click();
        });

        // Physics sliders
        ["stiffness", "repulsion", "damping"].forEach(function (key) {
          $("#" + key).on("input", function () {
            $("#" + key + "-val").text($(this).val());
          });
        });
        window.springParams = { stiffness: 500, repulsion: 2000, damping: 0.5 };

        // System theme change listener (follows OS if user hasn't manually locked a theme)
        if (window.matchMedia) {
          window
            .matchMedia("(prefers-color-scheme: dark)")
            .addEventListener("change", function (e) {
              if (!localStorage.getItem("theme")) {
                document.documentElement.setAttribute("data-theme", e.matches ? "dark" : "light");
              }
            });
        }

        // Guide modal
        var guideOpen = false;
        $("#btn-guide").on("click", function () {
          guideOpen = true;
          $("#guide").removeClass("hidden");
        });
        $("[data-close-guide]").on("click", function () {
          guideOpen = false;
          $("#guide").addClass("hidden");
        });
        $(document).on("keydown", function (e) {
          if (e.key === "Escape" && guideOpen) {
            guideOpen = false;
            $("#guide").addClass("hidden");
          }
        });

        // Theme toggle
        $("#btn-theme").on("click", function () {
          var current = document.documentElement.getAttribute("data-theme") || "dark";
          var next = current === "dark" ? "light" : "dark";
          document.documentElement.setAttribute("data-theme", next);
          localStorage.setItem("theme", next);
        });
      });
    </script>
  </body>
</html>