fix setup of new document, closes #966

src/public/app/services/bundle.js

@@ -0,0 +1,80 @@
+import ScriptContext from "./script_context.js";
+import server from "./server.js";
+import toastService from "./toast.js";
+import treeCache from "./tree_cache.js";
+
+async function getAndExecuteBundle(noteId, originEntity = null) {
+    const bundle = await server.get('script/bundle/' + noteId);
+
+    return await executeBundle(bundle, originEntity);
+}
+
+async function executeBundle(bundle, originEntity, $container) {
+    const apiContext = await ScriptContext(bundle.noteId, bundle.allNoteIds, originEntity, $container);
+
+    try {
+        return await (function () {
+            return eval(`const apiContext = this; (async function() { ${bundle.script}\r\n})()`);
+        }.call(apiContext));
+    }
+    catch (e) {
+        toastService.showAndLogError(`Execution of ${bundle.noteId} failed with error: ${e.message}`);
+    }
+}
+
+async function executeStartupBundles() {
+    const scriptBundles = await server.get("script/startup");
+
+    for (const bundle of scriptBundles) {
+        await executeBundle(bundle);
+    }
+}
+
+class WidgetsByParent {
+    constructor() {
+        this.byParent = {};
+    }
+
+    add(widget) {
+        if (!widget.parentWidget) {
+            console.log(`Custom widget does not have mandatory 'getParent()' method defined`);
+            return;
+        }
+
+        this.byParent[widget.parentWidget] = this.byParent[widget.parentWidget] || [];
+        this.byParent[widget.parentWidget].push(widget);
+    }
+
+    get(parentName) {
+        return this.byParent[parentName] || [];
+    }
+}
+
+async function getWidgetBundlesByParent() {
+    const scriptBundles = await server.get("script/widgets");
+
+    const widgetsByParent = new WidgetsByParent();
+
+    for (const bundle of scriptBundles) {
+        let widget;
+
+        try {
+            widget = await executeBundle(bundle);
+        }
+        catch (e) {
+            console.error("Widget initialization failed: ", e);
+            continue;
+        }
+
+        widgetsByParent.add(widget);
+    }
+
+    return widgetsByParent;
+}
+
+export default {
+    executeBundle,
+    getAndExecuteBundle,
+    executeStartupBundles,
+    getWidgetBundlesByParent
+}