modal editor is a bit bad

pi/files/agent/extensions/modal-editor.ts

@@ -1,85 +0,0 @@
-/**
- * Modal Editor - vim-like modal editing example
- *
- * Usage: pi --extension ./examples/extensions/modal-editor.ts
- *
- * - Escape: insert → normal mode (in normal mode, aborts agent)
- * - i: normal → insert mode
- * - hjkl: navigation in normal mode
- * - ctrl+c, ctrl+d, etc. work in both modes
- */
-
-import { CustomEditor, type ExtensionAPI } from "@mariozechner/pi-coding-agent";
-import { matchesKey, truncateToWidth, visibleWidth } from "@mariozechner/pi-tui";
-
-// Normal mode key mappings: key -> escape sequence (or null for mode switch)
-const NORMAL_KEYS: Record<string, string | null> = {
-	h: "\x1b[D", // left
-	j: "\x1b[B", // down
-	k: "\x1b[A", // up
-	l: "\x1b[C", // right
-	"0": "\x01", // line start
-	$: "\x05", // line end
-	x: "\x1b[3~", // delete char
-	i: null, // insert mode
-	a: null, // append (insert + right)
-};
-
-class ModalEditor extends CustomEditor {
-	private mode: "normal" | "insert" = "insert";
-
-	handleInput(data: string): void {
-		// Escape toggles to normal mode, or passes through for app handling
-		if (matchesKey(data, "escape")) {
-			if (this.mode === "insert") {
-				this.mode = "normal";
-			} else {
-				super.handleInput(data); // abort agent, etc.
-			}
-			return;
-		}
-
-		// Insert mode: pass everything through
-		if (this.mode === "insert") {
-			super.handleInput(data);
-			return;
-		}
-
-		// Normal mode: check mapped keys
-		if (data in NORMAL_KEYS) {
-			const seq = NORMAL_KEYS[data];
-			if (data === "i") {
-				this.mode = "insert";
-			} else if (data === "a") {
-				this.mode = "insert";
-				super.handleInput("\x1b[C"); // move right first
-			} else if (seq) {
-				super.handleInput(seq);
-			}
-			return;
-		}
-
-		// Pass control sequences (ctrl+c, etc.) to super, ignore printable chars
-		if (data.length === 1 && data.charCodeAt(0) >= 32) return;
-		super.handleInput(data);
-	}
-
-	render(width: number): string[] {
-		const lines = super.render(width);
-		if (lines.length === 0) return lines;
-
-		// Add mode indicator to bottom border
-		const label = this.mode === "normal" ? " NORMAL " : " INSERT ";
-		const last = lines.length - 1;
-		if (visibleWidth(lines[last]!) >= label.length) {
-			lines[last] = truncateToWidth(lines[last]!, width - label.length, "") + label;
-		}
-		return lines;
-	}
-}
-
-export default function (pi: ExtensionAPI) {
-	pi.on("session_start", (_event, ctx) => {
-		ctx.ui.setEditorComponent((tui, theme, kb) => new ModalEditor(tui, theme, kb));
-	});
-}