Configured to prefer running on local client when using remote ssh connection, fixing the random loss of mark selection.

Author: naturalethic

.eslintrc.json

@@ -1,3 +1,2 @@
 /out
 /node_modules
-/notes

.gitignore

@@ -0,0 +1 @@
+save = true

.npmrc

@@ -1,14 +1,11 @@
 # Change Log
 
-All notable changes to the "foobar" extension will be documented in this file.
-
-Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
-
-## [Unreleased]
-
 ## [1.0.0 - 1.0.7] - 2016-06-29 - 2016-07-14
 - Initial releases
 
 ## [1.1.0] - 2021-10-19
 - Updated extension to latest standards
 - Fix bug where extension failed on attempted os-level copy on non-darwin systems, breaking ssh-remoting to linux systems.
+
+## [1.1.1] - 2023-02-25
+- Configured to prefer running on local client when using remote ssh connection, fixing the random loss of mark selection.

.vscodeignore

@@ -0,0 +1,153 @@
+import { execSync } from 'child_process';
+import * as os from 'os';
+import {
+  commands,
+  Disposable,
+  ExtensionContext,
+  TextEditorRevealType,
+  window,
+  workspace,
+} from 'vscode';
+
+export function deactivate() {}
+
+export function activate(context: ExtensionContext) {
+	let nemacs = new Nemacs();
+	context.subscriptions.push(
+		commands.registerCommand("nemacs.mark", () => {
+			nemacs.mark();
+		}),
+	);
+	for (let cmd of [
+		"cursorUp",
+		"cursorDown",
+		"cursorLeft",
+		"cursorRight",
+		"cursorHome",
+		"cursorEnd",
+		"cursorPageUp",
+		"cursorPageDown",
+	]) {
+		context.subscriptions.push(
+			commands.registerCommand(`nemacs.${cmd}`, () => {
+				nemacs.cursorMove(cmd);
+			}),
+		);
+	}
+	context.subscriptions.push(
+		commands.registerCommand("nemacs.killLine", () => {
+			nemacs.killLine();
+		}),
+	);
+	context.subscriptions.push(
+		commands.registerCommand("nemacs.yank", () => {
+			nemacs.yank();
+		}),
+	);
+	context.subscriptions.push(
+		commands.registerCommand("nemacs.copy", () => {
+			nemacs.copy();
+		}),
+	);
+	context.subscriptions.push(
+		commands.registerCommand("nemacs.centerVertically", () => {
+			nemacs.centerVertically();
+		}),
+	);
+	context.subscriptions.push(nemacs);
+}
+
+class Nemacs {
+	private disposable: Disposable;
+	private marked: boolean = false;
+	private moving: boolean = false;
+	private ringBuffer: string = "";
+
+	constructor() {
+		let subscriptions: Disposable[] = [];
+		window.onDidChangeTextEditorSelection(
+			this.onDidChangeTextEditorSelection,
+			this,
+			subscriptions,
+		);
+		this.disposable = Disposable.from(...subscriptions);
+	}
+
+	public mark() {
+		this.marked = true;
+	}
+
+	public cursorMove(command: string) {
+		if (this.marked) {
+			this.moving = true;
+			commands.executeCommand(`${command}Select`).then(() => {
+				this.moving = false;
+			});
+		} else {
+			commands.executeCommand(command);
+		}
+	}
+
+	private copyRingBuffer() {
+		if (this.ringBuffer) {
+			if (os.platform() === "darwin") {
+				execSync("pbcopy", { input: this.ringBuffer });
+			}
+			this.ringBuffer = "";
+		}
+	}
+
+	private onDidChangeTextEditorSelection() {
+		if (this.marked && !this.moving) {
+			this.cancelSelection();
+		}
+		this.copyRingBuffer();
+	}
+
+	public cancelSelection() {
+		this.marked = false;
+		this.moving = false;
+		commands.executeCommand("cancelSelection");
+	}
+
+	public killLine() {
+		if (!window.activeTextEditor) return;
+		let sel = window.activeTextEditor.selection;
+		let line = window.activeTextEditor.document.lineAt(sel.active.line);
+		if (this.marked) {
+			commands.executeCommand("editor.action.clipboardCutAction");
+		} else if (line.range.end.character === sel.active.character) {
+			if (line.lineNumber < window.activeTextEditor.document.lineCount - 1) {
+				this.ringBuffer =
+					this.ringBuffer + workspace.getConfiguration("files").get("eol");
+				commands.executeCommand("deleteRight");
+			}
+		} else {
+			this.ringBuffer =
+				this.ringBuffer +
+				line.text.substring(sel.active.character, line.range.end.character);
+			commands.executeCommand("deleteAllRight");
+		}
+	}
+
+	public yank() {
+		this.copyRingBuffer();
+		commands.executeCommand("editor.action.clipboardPasteAction");
+	}
+
+	public copy() {
+		commands.executeCommand("editor.action.clipboardCopyAction");
+		this.cancelSelection();
+	}
+
+	public centerVertically() {
+		window.activeTextEditor?.revealRange(
+			window.activeTextEditor.selection.with(),
+			TextEditorRevealType.InCenter,
+		);
+	}
+
+	dispose() {
+		this.disposable.dispose();
+	}
+}

CHANGELOG.md

@@ -8,14 +8,9 @@
 		],
 		"sourceMap": true,
 		"rootDir": "src",
-		"strict": true   /* enable all strict type-checking options */
-		/* Additional Checks */
-		// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
-		// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
-		// "noUnusedParameters": true,  /* Report errors on unused parameters. */
+		"strict": true
 	},
 	"exclude": [
 		"node_modules",
-		".vscode-test"
 	]
 }