Clipboard!

codetab.ts

@@ -3,8 +3,8 @@ import { fontWidth, fontHeight } from "./font.ts";
 import { drawText } from "./builtins.ts";
 import { COLOR } from "./colors.ts";
 import {getSheet, setSheet} from "./sheet.ts";
-import { K, getKeyboardString, keyPressed, shiftKeyDown } from "./keyboard.ts";
-import { tokenize } from "./deps.ts";
+import { K, ctrlKeyDown, getKeyboardString, keyPressed, shiftKeyDown } from "./keyboard.ts";
+import { clipboard, tokenize } from "./deps.ts";
 
 const state = {
 	scrollX: 0,
@@ -91,6 +91,19 @@ const state = {
 			this.insertText("");
 		}
 	},
+	async copy() {
+		const {code, anchor, focus} = this;
+		const selected = code.slice(Math.min(anchor,focus), Math.max(anchor,focus));
+		await clipboard.writeText(selected);
+	},
+	async cut() {
+		await this.copy();
+		this.insertText("");
+	},
+	async paste() {
+
+		this.insertText(await clipboard.readText());
+	},
 	scrollToCursor() {
 		const {focusY, focusX, scrollY, scrollX} = this;
 		const fh = fontHeight + 1;
@@ -332,14 +345,14 @@ const drawCodeField = (code: string, x: number, y: number, w: number, h: number)
 	})
 }
 
-const update = () => {
+const update = async () => {
 	const { focus, focusX, focusY} = state;
 	const keyboardString = getKeyboardString();
 	if (keyboardString) {
 		state.insertText(keyboardString);
 		state.scrollToCursor();
 	}
-	// TODO: Handle ctrl-C, ctrl-V, ctrl-X, ctrl-Z
+	// TODO: Handle ctrl-Z
 	// TODO: Make ctrl-/ do commenting out (take inspiration from tab)
 
 	if (keyPressed(K.ENTER)) {
@@ -399,6 +412,15 @@ const update = () => {
 		}
 		state.scrollToCursor();
 	}
+	if (keyPressed("C") && ctrlKeyDown()) {
+		await state.copy();
+	}
+	if (keyPressed("X") && ctrlKeyDown()) {
+		await state.cut();
+	}
+	if (keyPressed("V") && ctrlKeyDown()) {
+		await state.paste();
+	}
 }
 
 const draw = () => {

colors.ts

@@ -14,6 +14,7 @@ const colors = {
 	CYAN: [0, 0.9, 0.9],
 	LIGHTGRAY: [0.75, 0.75, 0.75],
 	REDDISH: [0.7, 1, 0.5],
+	DARKGREEN: [0, 0.6, 0.2],
 } as const;
 
 export const palette: Array<[number, number, number, number]> = Object.values(colors).map(val => [...val, 1]);

deno.lock

@@ -41,7 +41,8 @@
     "https://glfw-binaries.deno.dev/3.4.0-patch2/glfw3_darwin.js": "48911f26fff723a9c5f2f38e39be42fc65ed8dea6f2ba1f1acb464d3f0aa435b",
     "https://glfw-binaries.deno.dev/3.4.0-patch2/glfw3_darwin_aarch64.js": "ae4d795d93830b8a27714ab6c20b69b67f3d4ad3544c50e344558756cf2e92f3",
     "https://glfw-binaries.deno.dev/3.4.0-patch2/glfw3_linux.js": "b064aedb175fee1a977937f07584238f313a1958f9869273e7e672c42f09932d",
-    "https://glfw-binaries.deno.dev/3.4.0-patch2/glfw3_windows.js": "6ac603e03520c8c333e1475cb00f982adb1f8a99de7f4bb0b8953da66f210159"
+    "https://glfw-binaries.deno.dev/3.4.0-patch2/glfw3_windows.js": "6ac603e03520c8c333e1475cb00f982adb1f8a99de7f4bb0b8953da66f210159",
+    "https://raw.githubusercontent.com/Nisgrak/deno-clipboard/fix-deno-1.0.0/mod.ts": "85282325a499c75c6f9ed3603fc5f8baf4bf661a616add43b4e6f033def52680"
   },
   "npm": {
     "specifiers": {

deps.ts

@@ -1,17 +1,18 @@
 // dwm
 export {
-	createWindow,
-	getProcAddress,
-	mainloop,
+  createWindow,
+  getProcAddress,
+  mainloop,
 } from "https://deno.land/x/dwm@0.3.3/mod.ts";
 export * as gl from "https://deno.land/x/gluten@0.1.6/api/gles23.2.ts";
 
+import { clipboard } from "https://raw.githubusercontent.com/Nisgrak/deno-clipboard/fix-deno-1.0.0/mod.ts";
 // jsTokens
 import jsTokens from "npm:js-tokens";
 export function tokenize(input: string): Iterable<Token> {
-	// deno-lint-ignore no-explicit-any
-	return (jsTokens as any)(input);
-};
+  // deno-lint-ignore no-explicit-any
+  return (jsTokens as any)(input);
+}
 type Token =
   | { type: "StringLiteral"; value: string; closed: boolean }
   | { type: "NoSubstitutionTemplate"; value: string; closed: boolean }
@@ -27,4 +28,13 @@ type Token =
   | { type: "Punctuator"; value: string }
   | { type: "WhiteSpace"; value: string }
   | { type: "LineTerminatorSequence"; value: string }
-  | { type: "Invalid"; value: string };
+  | { type: "Invalid"; value: string };
+
+// clipboard
+export { clipboard } from "https://raw.githubusercontent.com/Nisgrak/deno-clipboard/fix-deno-1.0.0/mod.ts";
+try {
+  await clipboard.readText();
+} catch (err) {
+  console.log("If you are running this on linux, please make sure you have 'xsel' installed.");
+  throw err;
+}

index.ts

@@ -23,7 +23,7 @@ addToContext("play", () => {
 
 clearScreen();
   
-await mainloop((_t) => {
+await mainloop(async (_t) => {
 	// TODO: use t
 	if (keyPressed(K.ESCAPE)) {
 		const modeTo = ({
@@ -51,11 +51,11 @@ await mainloop((_t) => {
 			repl.draw();
 			frame();
 		} else if (mode === "edit") {
-			editmode.update();
+			await editmode.update();
 			editmode.draw();
 			frame();
 		}
 	}
 	refreshKeyboard();
 	refreshMouse();
-});
+}, false);