update status bar sample, #110

statusbar-sample/.vscode/launch.json

@@ -7,22 +7,15 @@
 			"type": "extensionHost",
 			"request": "launch",
 			"runtimeExecutable": "${execPath}",
-			"args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
+			"args": [
+				"--extensionDevelopmentPath=${workspaceRoot}"
+			],
 			"stopOnEntry": false,
 			"sourceMaps": true,
-			"outFiles": ["${workspaceRoot}/out/src/**/*.js"],
-			"preLaunchTask": "tsc: watch - tsconfig.json"
-		},
-		{
-			"name": "Launch Tests",
-			"type": "extensionHost",
-			"request": "launch",
-			"runtimeExecutable": "${execPath}",
-			"args": ["--extensionDevelopmentPath=${workspaceRoot}", "--extensionTestsPath=${workspaceRoot}/out/test" ],
-			"stopOnEntry": false,
-			"sourceMaps": true,
-			"outFiles": ["${workspaceRoot}/out/test/**/*.js"],
-			"preLaunchTask": "tsc: watch - tsconfig.json"
+			"outFiles": [
+				"${workspaceRoot}/out/src/**/*.js"
+			],
+			"preLaunchTask": "npm: watch"
 		}
 	]
 }

statusbar-sample/package.json

@@ -20,26 +20,14 @@
 	"activationEvents": [
 		"*"
 	],
-	"contributes": {
-		"commands": [
-			{
-				"command": "extension.selectedLines",
-				"title": "Show Selected Lines"
-			}
-		]
-	},
 	"main": "./out/extension",
 	"scripts": {
 		"vscode:prepublish": "tsc -p ./",
-		"compile": "tsc -watch -p ./",
-		"postinstall": "node ./node_modules/vscode/bin/install",
-		"test": "node ./node_modules/vscode/bin/test"
+		"watch": "tsc -watch -p ./",
+		"postinstall": "node ./node_modules/vscode/bin/install"
 	},
 	"devDependencies": {
-		"@types/node": "^6.0.40",
-		"mocha": "^2.3.3",
-		"tslint": "^5.11.0",
-		"typescript": "^2.1.4",
-		"vscode": "^1.1.17"
+		"typescript": "^3.1.6",
+		"vscode": "^1.1.21"
 	}
 }

statusbar-sample/src/extension.ts

@@ -4,53 +4,37 @@
 
 'use strict';
 
-import { ExtensionContext, StatusBarAlignment, window, StatusBarItem, Selection, workspace, TextEditor, commands } from 'vscode';
+import * as vscode from 'vscode';
 
-export function activate(context: ExtensionContext) {
-	const status = window.createStatusBarItem(StatusBarAlignment.Right, 100);
-	status.command = 'extension.selectedLines';
-	context.subscriptions.push(status);
+let myStatusBarItem: vscode.StatusBarItem;
 
-	context.subscriptions.push(window.onDidChangeActiveTextEditor(e => updateStatus(status)));
-	context.subscriptions.push(window.onDidChangeTextEditorSelection(e => updateStatus(status)));
-	context.subscriptions.push(window.onDidChangeTextEditorViewColumn(e => updateStatus(status)));
-	context.subscriptions.push(workspace.onDidOpenTextDocument(e => updateStatus(status)));
-	context.subscriptions.push(workspace.onDidCloseTextDocument(e => updateStatus(status)));
+export function activate(context: vscode.ExtensionContext) {
 
-	context.subscriptions.push(commands.registerCommand('extension.selectedLines', () => {
-		window.showInformationMessage(getSelectedLines());
-	}));
+	myStatusBarItem = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right, 100);
 
-	updateStatus(status);
+	context.subscriptions.push(myStatusBarItem);
+
+	context.subscriptions.push(vscode.window.onDidChangeActiveTextEditor(updateStatusBarItem));
+	context.subscriptions.push(vscode.window.onDidChangeTextEditorSelection(updateStatusBarItem));
+	context.subscriptions.push(vscode.window.onDidChangeTextEditorViewColumn(updateStatusBarItem));
+
+	updateStatusBarItem();
 }
 
-function updateStatus(status: StatusBarItem): void {
-	let text = getSelectedLines();
-	if (text) {
-		status.text = '$(megaphone) ' + text;
-	}
-
-	if (text) {
-		status.show();
+function updateStatusBarItem(): void {
+	let n = getNumberOfSelectedLines(vscode.window.activeTextEditor);
+	if (n > 0) {
+		myStatusBarItem.text = `$(megaphone) ${n} line(s) selected`;;
+		myStatusBarItem.show();
 	} else {
-		status.hide();
+		myStatusBarItem.hide();
 	}
 }
 
-function getSelectedLines(): string {
-	const editor = window.activeTextEditor;
-	let text: string;
-
+function getNumberOfSelectedLines(editor: vscode.TextEditor | undefined): number {
+	let lines = 0;
 	if (editor) {
-		let lines = 0;
-		editor.selections.forEach(selection => {
-			lines += (selection.end.line - selection.start.line + 1);
-		});
-
-		if (lines > 0) {
-			text = `${lines} line(s) selected`;
-		}
+		lines = editor.selections.reduce((prev, curr) => prev + (curr.end.line - curr.start.line), 0);
 	}
-
-	return text;
+	return lines;
 }

statusbar-sample/tsconfig.json

@@ -1,11 +1,17 @@
 {
 	"compilerOptions": {
 		"module": "commonjs",
-		"target": "es5",
+		"target": "es6",
 		"outDir": "out",
-		"lib": ["es6"],
+		"lib": [
+			"es6"
+		],
+		"strict": true,
 		"sourceMap": true,
 		"rootDir": "src"
 	},
-	"exclude": ["node_modules"]
+	"exclude": [
+		"node_modules",
+		".vscode-test"
+	]
 }