56 lines
1.2 KiB
JavaScript
56 lines
1.2 KiB
JavaScript
import { readKey } from './ansi.ts';
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import { getRuntime } from './runtime.ts';
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import { getTermios } from './termios.ts';
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import { Editor } from './editor.ts';
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export async function main() {
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const runTime = await getRuntime();
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const { term, file, onExit, onEvent } = runTime;
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// Setup raw mode, and tear down on error or normal exit
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const t = await getTermios();
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t.enableRawMode();
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onExit(() => {
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t.disableRawMode();
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});
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// Setup error handler to log to file
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onEvent('error', (error: Event) => {
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t.disableRawMode();
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error.preventDefault();
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error.stopPropagation();
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file.appendFile('scroll.err', JSON.stringify(error, null, 2)).then(
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() => {},
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);
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});
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const terminalSize = await term.getTerminalSize();
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// Create the editor itself
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const editor = new Editor(terminalSize);
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if (term.argv.length > 0) {
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const filename = term.argv[0];
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if (filename.trim() !== '') {
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await editor.open(filename);
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}
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}
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// Clear the screen
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await editor.refreshScreen();
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// The main event loop
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for await (const chunk of term.inputLoop()) {
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// Process input
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const char = readKey(chunk);
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const shouldLoop = editor.processKeyPress(char);
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if (!shouldLoop) {
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return 0;
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}
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// Render output
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await editor.refreshScreen();
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}
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return -1;
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}
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