Add sheet viewer page

codetab.ts

@@ -2,15 +2,16 @@ import { clearScreen, fillRect } from "./window.ts";
 import { fontWidth, fontHeight } from "./font.ts";
 import { drawText } from "./builtins.ts";
 import { COLOR } from "./colors.ts";
-import {getCodeSheet, setSheet} from "./sheet.ts";
+import { getCodeSheet, setSheet } from "./sheet.ts";
 import { K, ctrlKeyDown, getKeyboardString, keyPressed, shiftKeyDown } from "./keyboard.ts";
 import { clipboard, tokenize } from "./deps.ts";
 import { getContext } from "./runcode.ts";
+import { page } from "./viewsheets.ts";
 
 const historyDebounceFrames = 20;
 
 const state = {
-	history: [{code: getCodeSheet(0), anchor: 0, focus: 0}],
+	history: [{code: getCodeSheet(page.activeSheet), anchor: 0, focus: 0}],
 	historyDebounce: 0,
 	historyIndex: 0,
 	undo() {
@@ -201,10 +202,10 @@ const state = {
 		return match[0];
 	},
 	get code() {
-		return getCodeSheet(0);
+		return getCodeSheet(page.activeSheet);
 	},
 	set code(val) {
-		setSheet(0, "code", val);
+		setSheet(page.activeSheet, "code", val);
 	}
 }