editor-ui/web-component.html at main · RaspberryPiFoundation/editor-ui · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width" />
    <link rel="icon" href="data:," />
    <title>Editor Web component</title>
    <script type="module" src="/src/web-component.jsx"></script>
    <style>
      /* Lexend is used by the projects-ui sample theme */
      @import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&family=Lexend:wght@100..900&display=swap");

      * {
        box-sizing: border-box;
      }

      body {
        margin: 0;
        block-size: 100dvh;
        font-family: "Roboto", sans-serif;
      }

      main {
        block-size: 100%;
        display: grid;
        grid-template-rows: auto 1fr auto;
      }

      #editor-component {
        display: flex;
        min-block-size: 0;
      }

      .editor-wc {
        flex: 1;
        display: flex;
      }

      ::part(editor-root) {
        flex: 1;
        block-size: 100%;
      }

      .sample-projects-bar {
        flex: 0 0 auto;
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem 1rem;
        padding: 1rem;
        border-block-end: 1px solid gainsboro;
      }

      .sample-projects-bar a {
        color: #005fb8;
        text-decoration: underline;
      }

      .debug {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 1rem;
        border-block-start: 1px solid gainsboro;
        overflow-x: auto;

        > * {
          margin: 0;
        }

        p:empty {
          display: none;
        }
      }
    </style>
  </head>
  <body>
    <main>
      <div class="sample-projects-bar" id="sample-projects-bar">
        <span>Load Sample Projects:</span>
        <a href="?project=blank-html-starter">blank-html-starter</a>
        <a href="?project=cool-html">cool-html</a>
        <a href="?project=draw-a-cat">draw-a-cat</a>
        <a href="?project=blank-python-starter">blank-python-starter</a>
        <a href="?project=cool-python">cool-python</a>
        <a href="?project=python-plotly">python-plotly</a>
        <a href="?project=cool-scratch">cool-scratch</a>
        <a href="?project=astro-pi">astro-pi</a>
        <a href="?project=projects-ui">projects-ui</a>
      </div>
      <div id="editor-component"></div>
      <div class="debug">
        <button id="run-button">Run code</button>
        <p id="results"></p>
        <p id="project-identifier"></p>
      </div>
    </main>

    <script>
      const loadSampleProjectByName = async (projectName) => {
        const url = new URL(
          `projects/${projectName}.json`,
          window.location.href,
        );
        const res = await fetch(url, { cache: "no-store" });
        return await res.text();
      };

      const loadThemeByName = async (projectName) => {
        const url = new URL(
          `projects/themes/${projectName}.css`,
          window.location.href,
        );
        const res = await fetch(url, { cache: "no-store" });
        if (res.status === 404) {
          return null;
        }
        if (!res.ok) {
          throw new Error(
            `Failed to load theme "${projectName}": ${res.status} ${res.statusText}`,
          );
        }
        // Guard against hosts that answer a missing file with a 200 HTML page —
        // that markup would otherwise be injected into the shadow DOM verbatim.
        const contentType = res.headers.get("content-type") || "";
        if (!contentType.includes("text/css")) {
          throw new Error(
            `Theme "${projectName}" was served as "${contentType}", expected text/css`,
          );
        }
        return await res.text();
      };

      document.addEventListener("DOMContentLoaded", async (e) => {
        const queryParams = new URLSearchParams(window.location.search);
        const projectName = queryParams.get("project");
        const [initialProject, themeText] = await Promise.all([
          projectName ? loadSampleProjectByName(projectName) : null,
          projectName ? loadThemeByName(projectName) : null,
        ]);

        let webComp;

        // subscribe to the 'codeChanged' custom event which is pushed by the project react component
        document.addEventListener("editor-codeChanged", function (e) {
          const code = webComp.editorCode;
        });

        document.addEventListener("editor-runCompleted", (e) => {
          document.getElementById("results").innerText = JSON.stringify(
            e.detail,
          );
        });

        document.addEventListener("editor-projectIdentifierChanged", (e) => {
          document.getElementById("project-identifier").innerText = e.detail;
        });

        const editorContainer = document.getElementById("editor-component");

        const createWebComponent = (initialProject = null) => {
          const initialProjectObject = initialProject
            ? JSON.parse(initialProject)
            : null;
          const newWebComp = document.createElement("editor-wc");

          newWebComp.setAttribute("with_projectbar", "true");
          newWebComp.setAttribute("with_sidebar", "true");
          newWebComp.setAttribute("friendly_errors_enabled", "true");
          newWebComp.setAttribute("editable_instructions", "true");
          // see "Offline support" section in README for more details
          newWebComp.setAttribute("offline_enabled", "true");
          newWebComp.setAttribute(
            "sidebar_options",
            JSON.stringify([
              "projects",
              "instructions",
              "file",
              "images",
              "download",
              "settings",
              "info",
            ]),
          );

          newWebComp.setAttribute("code", "");
          newWebComp.setAttribute("class", "editor-wc");
          newWebComp.setAttribute("host_styles", JSON.stringify([]));
          const scratchApiEndpoint = new URL(
            ".",
            window.location.href,
          ).href.replace(/\/$/, "");
          newWebComp.setAttribute("scratch_api_endpoint", scratchApiEndpoint);

          if (themeText) {
            newWebComp.setAttribute("host_styles", JSON.stringify([themeText]));
          }

          if (projectName === "projects-ui") {
            newWebComp.setAttribute("editable_instructions", "false");
            newWebComp.setAttribute(
              "sidebar_options",
              JSON.stringify([
                "instructions",
                "file",
                "images",
                "download",
                "settings",
                "info",
              ]),
            );
          }

          // Applied last so an explicit query param always wins over the
          // defaults above.
          queryParams.forEach((value, key) => {
            newWebComp.setAttribute(key, value);
          });

          if (initialProject) {
            newWebComp.setAttribute(
              "sense_hat_always_enabled",
              initialProjectObject.sense_hat_always_enabled || false,
            );
            newWebComp.setAttribute("initial_project", initialProject);
          }

          return newWebComp;
        };

        webComp = createWebComponent(initialProject);
        editorContainer.prepend(webComp);

        document.getElementById("run-button").onclick = (event) => {
          webComp.rerunCode();
        };
      });
    </script>
  </body>
</html>