Pass kanbn to react via webview message

ext-src/KanbnBoardPanel.ts

@@ -8,10 +8,9 @@ export default class KanbnBoardPanel {
 
   private readonly _panel: vscode.WebviewPanel;
   private readonly _extensionPath: string;
-  private readonly _workspacePath: string;
   private _disposables: vscode.Disposable[] = [];
 
-  public static createOrShow(extensionPath: string, workspacePath: string) {
+  public static createOrShow(extensionPath: string) {
     const column = vscode.window.activeTextEditor ? vscode.window.activeTextEditor.viewColumn : undefined;
 
     // If we already have a panel, show it.
@@ -21,21 +20,40 @@ export default class KanbnBoardPanel {
     } else {
       KanbnBoardPanel.currentPanel = new KanbnBoardPanel(
         extensionPath,
-        workspacePath,
         column || vscode.ViewColumn.One
       );
     }
   }
 
-  private constructor(extensionPath: string, workspacePath: string, column: vscode.ViewColumn) {
+  public static async updateBoard(kanbn: typeof import('@basementuniverse/kanbn/src/main')) {
+    if (KanbnBoardPanel.currentPanel) {
+      let index: any;
+      try {
+        index = await kanbn.getIndex();
+      } catch (error) {
+        vscode.window.showErrorMessage(error instanceof Error ? error.message : error);
+        return;
+      }
+      KanbnBoardPanel.currentPanel._panel.webview.postMessage({
+        index,
+        tasks: (await kanbn.loadAllTrackedTasks(index)).map(
+          task => kanbn.hydrateTask(index, task)
+        )
+      });
+    }
+  }
+
+  private constructor(extensionPath: string, column: vscode.ViewColumn) {
     this._extensionPath = extensionPath;
-    this._workspacePath = workspacePath;
 
     // Create and show a new webview panel
     this._panel = vscode.window.createWebviewPanel(KanbnBoardPanel.viewType, "Kanbn Board", column, {
       // Enable javascript in the webview
       enableScripts: true,
 
+      // Retain state even when hidden
+      retainContextWhenHidden: true,
+
       // Restrict the webview to only loading content from our extension's `media` directory.
       localResourceRoots: [
         vscode.Uri.file(path.join(this._extensionPath, 'build'))

ext-src/extension.ts

@@ -42,6 +42,7 @@ export async function activate(context: vscode.ExtensionContext) {
       });
       vscode.window.showInformationMessage(`Initialised kanbn project '${newProjectName}'.`);
       kanbnStatusBarItem.update(kanbn);
+      KanbnBoardPanel.updateBoard(kanbn);
     }
   }));
 
@@ -61,7 +62,8 @@ export async function activate(context: vscode.ExtensionContext) {
 
     // If kanbn is initialised, view the kanbn board
     if (await kanbn.initialised()) {
-      KanbnBoardPanel.createOrShow(context.extensionPath, kanbn.getMainFolder());
+      KanbnBoardPanel.createOrShow(context.extensionPath);
+      KanbnBoardPanel.updateBoard(kanbn);
     } else {
       vscode.window.showErrorMessage('You need to initialise kanbn before viewing the kanbn board.');
     }
@@ -77,13 +79,14 @@ export async function activate(context: vscode.ExtensionContext) {
     // Create status bar item
     kanbnStatusBarItem = new KanbnStatusBarItem(context);
     kanbnStatusBarItem.update(kanbn);
+    KanbnBoardPanel.updateBoard(kanbn);
 
     // Initialise file watcher
     const uri = vscode.workspace.workspaceFolders[0].uri.fsPath;
     const fileWatcher = vscode.workspace.createFileSystemWatcher(new vscode.RelativePattern(uri, '.kanbn/*'));
     fileWatcher.onDidChange(() => {
       kanbnStatusBarItem.update(kanbn);
-      // TODO refresh kanbn board
+      KanbnBoardPanel.updateBoard(kanbn);
     });
   }
 }

package.json

@@ -29,8 +29,7 @@
     "react-beautiful-dnd": "12.2.0",
     "react-dom": "^16.3.2",
     "terser": "3.14.1",
-    "uuid": "3.3.3",
-    "vscode": "^1.1.17"
+    "vscode": "^1.1.37"
   },
   "scripts": {
     "vscode:prepublish": "./scripts/build-non-split.js && tsc -p tsconfig.extension.json",
@@ -41,11 +40,11 @@
     "eject": "react-scripts eject"
   },
   "devDependencies": {
-    "@types/jest": "^23.3.13",
-    "@types/node": "^10.1.2",
-    "@types/react": "^16.3.14",
-    "@types/react-dom": "^16.0.5",
-    "react-scripts": "^2.1.3",
+    "@types/jest": "^23.3.14",
+    "@types/node": "^10.17.56",
+    "@types/react": "^16.14.5",
+    "@types/react-dom": "^16.9.12",
+    "react-scripts": "^2.1.8",
     "rewire": "^4.0.1",
     "typescript": "^4.0.2"
   },

src/App.tsx

@@ -1,37 +1,30 @@
-// import * as vscode from 'vscode';
 import Board from './Board';
 import Header from './Header';
-import React, { useEffect, useState } from "react";
+import React, { useState } from "react";
 
-function App(props) {
-  // const [cwd, setCwd] = useState('initialcwd');
-  // const [index, setIndex] = useState({});
-  // const [tasks, setTasks] = useState([]);
+const zip = (a: Array<any>, b: Array<any>): Array<[any, any]> => a.map((v: any, i: number): [any, any] => [v, b[i]]);
 
-  // useEffect(() => {
-  //   // process.chdir(vscode!.workspace.workspaceFolders[0].uri.fsPath);
-  //   import('@basementuniverse/kanbn/src/main').then(kanbn => {
-  //     vscode.postMessage({
-  //       command: 'error',
-  //       text: 'hello!'
-  //     });
-  //   });
-  // });
-  // console.log(vscode!.workspace.workspaceFolders[0].uri.fsPath);
+function App() {
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+  const [columns, setColumns] = useState({});
 
-  // window.addEventListener('message', event => {
-  //   const message = event.data; // The JSON data our extension sent
-  //   switch (message.command) {
-  //     case 'test':
-  //       setCwd(message.cwd);
-  //       break;
-  //   }
-  // });
+  window.addEventListener('message', event => {
+    const tasks = Object.fromEntries(event.data.tasks.map(task => [task.id, task]));
+    setName(event.data.index.name);
+    setDescription(event.data.index.description);
+    setColumns(Object.fromEntries(
+      zip(
+        Object.keys(event.data.index.columns),
+        Object.values(event.data.index.columns).map(column => (column as string[]).map(taskId => tasks[taskId]))
+      )
+    ));
+  });
 
   return (
     <div>
-      <Header />
-      <Board />
+      <Header name={name} description={description} />
+      <Board columns={columns} />
     </div>
   );
 }

src/Board.tsx

@@ -1,33 +1,10 @@
 import React, { useState } from "react";
 import { DragDropContext, Draggable, Droppable } from "react-beautiful-dnd";
-import uuid from "uuid/v4";
 
-const itemsFromBackend = [
-  { id: uuid(), content: "First task" },
-  { id: uuid(), content: "Second task" },
-  { id: uuid(), content: "Third task" },
-  { id: uuid(), content: "Fourth task" },
-  { id: uuid(), content: "Fifth task" }
-];
-
-const columnsFromBackend = {
-  [uuid()]: {
-    name: "Requested",
-    items: itemsFromBackend
-  },
-  [uuid()]: {
-    name: "To do",
-    items: []
-  },
-  [uuid()]: {
-    name: "In Progress",
-    items: []
-  },
-  [uuid()]: {
-    name: "Done",
-    items: []
-  }
-};
+export type task = {
+  id: string,
+  name: string
+}
 
 const onDragEnd = (result, columns, setColumns) => {
   if (!result.destination) return;
@@ -66,14 +43,15 @@ const onDragEnd = (result, columns, setColumns) => {
   }
 };
 
-function Board() {
-  const [columns, setColumns] = useState(columnsFromBackend);
+const Board = ({ columns }) => {
+  // const [columns, setColumns] = useState(props.columns);
   return (
     <div style={{ display: "flex", justifyContent: "center", height: "100%" }}>
-      <DragDropContext
+      {/* <DragDropContext
         onDragEnd={result => onDragEnd(result, columns, setColumns)}
-      >
-        {Object.entries(columns).map(([columnId, column], index) => {
+      > */}
+      <DragDropContext>
+        {Object.entries(columns).map(([columnId, column]) => {
           return (
             <div
               style={{
@@ -83,7 +61,7 @@ function Board() {
               }}
               key={columnId}
             >
-              <h2>{column.name}</h2>
+              <h2>{columnId}</h2>
               <div style={{ margin: 8 }}>
                 <Droppable droppableId={columnId} key={columnId}>
                   {(provided, snapshot) => {
@@ -100,7 +78,7 @@ function Board() {
                           minHeight: 500
                         }}
                       >
-                        {column.items.map((item, index) => {
+                        {(column as task[]).map((item, index) => {
                           return (
                             <Draggable
                               key={item.id}
@@ -125,7 +103,7 @@ function Board() {
                                       ...provided.draggableProps.style
                                     }}
                                   >
-                                    {item.content}
+                                    {item.name}
                                   </div>
                                 );
                               }}

src/Header.tsx

@@ -1,9 +1,13 @@
-import React, { useState } from "react";
+import React from "react";
 
-function Header() {
+const Header = ({ name, description }) => {
   return (
     <div>
-      Header
+      <h1>{name}</h1>
+      <p>
+        {description}
+      </p>
+      <hr />
     </div>
   );
 }

src/index.css

@@ -1,5 +1,5 @@
 body {
   margin: 0;
-  padding: 0;
+  padding: 1em;
   font-family: sans-serif;
 }

src/uuid.v4.d.ts

@@ -1 +0,0 @@
-declare module 'uuid/v4';