wip: bib manager

package.json

@@ -67,6 +67,7 @@
     "@myst-theme/diagrams": "^0.3.2",
     "@myst-theme/frontmatter": "^0.3.2",
     "@myst-theme/providers": "^0.3.2",
+    "citation-js-utils": "^1.0.0",
     "katex": "^0.15.2",
     "myst-ext-card": "^1.0.0",
     "myst-ext-exercise": "^1.0.0",

src/bibliography.ts

@@ -0,0 +1,89 @@
+import { Token } from '@lumino/coreutils';
+import { getCitations, CitationRenderer } from 'citation-js-utils';
+import { Contents, ContentsManager } from '@jupyterlab/services';
+import { ISignal, Signal } from '@lumino/signaling';
+
+export interface IBibliographyManager {
+  getBibliography(): CitationRenderer | null;
+
+  changed: ISignal<this, CitationRenderer | null>;
+}
+
+export const IBibliographyManager = new Token<IBibliographyManager>(
+  'jupyterlab-myst:IBibliographyManager'
+);
+
+export class BibliographyManager implements IBibliographyManager {
+  private _renderer: CitationRenderer | null;
+  private _changed = new Signal<this, CitationRenderer | null>(this);
+
+  get changed(): ISignal<this, CitationRenderer | null> {
+    return this._changed;
+  }
+
+  getBibliography(): CitationRenderer | null {
+    return this._renderer;
+  }
+
+  constructor(contents: Contents.IManager, bibFile: string) {
+    this._renderer = null;
+
+    contents
+      .get(bibFile)
+      .then(async model => {
+        this._renderer = await getCitations(model.content);
+        this._changed.emit(this._renderer);
+      })
+      .catch();
+
+    // Handle changes
+    contents.fileChanged.connect(async (_, change) => {
+      // On create
+      if (change.type === 'new') {
+        const path = (change.newValue as Contents.IModel).path;
+        // Add model to record registry
+        if (path === bibFile) {
+          const model = await contents.get(path);
+          this._renderer = await getCitations(model.content);
+          this._changed.emit(this._renderer);
+        }
+      }
+      // On rename
+      else if (change.type === 'rename') {
+        // Remove by path
+        const oldPath = (change.oldValue as Contents.IModel).path;
+        // Add under new path!
+        const newPath = (change.newValue as Contents.IModel).path;
+        // Add model to record registry
+        if (newPath === bibFile) {
+          const model = await contents.get(newPath);
+          this._renderer = await getCitations(model.content);
+          this._changed.emit(this._renderer);
+        } else if (oldPath === bibFile) {
+          this._renderer = null;
+          this._changed.emit(this._renderer);
+        }
+      }
+      // On delete
+      else if (change.type === 'delete') {
+        const path = (change.oldValue as Contents.IModel).path;
+        // Add model to record registry
+        if (path === bibFile) {
+          this._renderer = null;
+          this._changed.emit(this._renderer);
+        }
+      }
+      // On save
+      else {
+        const path = (change.newValue as Contents.IModel).path;
+        // Add model to record registry
+        // Add model to record registry
+        if (path === bibFile) {
+          const model = await contents.get(path);
+          this._renderer = await getCitations(model.content);
+          this._changed.emit(this._renderer);
+        }
+      }
+    });
+  }
+}

src/index.ts

@@ -14,6 +14,8 @@ import {
 } from '@jupyterlab/notebook';
 import { Cell } from '@jupyterlab/cells';
 import { MySTContentFactory } from './MySTContentFactory';
+import { IBibliographyManager, BibliographyManager } from './bibliography';
+
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 
 import { notebookCellExecuted } from './actions';
@@ -73,4 +75,23 @@ const mimeRendererPlugin: JupyterFrontEndPlugin<void> = {
   }
 };
 
-export default [plugin, executorPlugin, mimeRendererPlugin];
+const bibPlugin: JupyterFrontEndPlugin<IBibliographyManager> = {
+  id: 'jupyterlab-myst:bibliography',
+  requires: [],
+  provides: IBibliographyManager,
+  autoStart: true,
+  activate: (app: JupyterFrontEnd) => {
+    console.log('Using jupyterlab-myst:bibliography');
+
+    const manager = new BibliographyManager(
+      app.serviceManager.contents,
+      'bibliography.bib'
+    );
+    manager.changed.connect((manager, renderer) => {
+      console.log(renderer, 'CHANGE');
+    });
+    return manager;
+  }
+};
+
+export default [plugin, executorPlugin, mimeRendererPlugin, bibPlugin];