Initial Upload

public/webapp/draw.js

@@ -0,0 +1,47 @@
+const FALLBACK = "<p>Nothing here yet! Click me to open the editor.</p>"
+async function getFile(path) {
+
+    const response = await fetch('/api/file/getFile', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({path: path})
+    });
+
+    if (!response.ok) {
+        console.log('Failed to fetch HTML content');
+        return null;
+    }
+
+    const blob = await response.blob();
+    const resTxt =  await blob.text();
+
+    // if we got a 404 api response, we will return null
+    try {
+        const res = JSON.parse(resTxt);
+        if(res.code === 404) {
+            return null;
+        }
+    }catch {}
+
+    return resTxt;
+
+}
+
+async function getSVG(fileID) {
+
+    const resp = await getFile("/data/assets/" + fileID + '.svg');
+    if(resp == null) {
+        return FALLBACK;
+    }
+    return resp;
+
+}
+
+function getEditLink(fileID) {
+    const data = encodeURIComponent(
+        JSON.stringify({
+            id: fileID
+        })
+    )
+    return `siyuan://plugins/siyuan-jsdraw-pluginwhiteboard/?icon=iconDraw&title=Drawing&data=${data}`;
+}