79 lines
2.6 KiB
JavaScript
79 lines
2.6 KiB
JavaScript
/**
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* Home page ts/js
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*
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* @module
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*/
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import * as libfewd from './libfewd.js';
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//------------------------------------------------------------------
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// page element stuff
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//------------------------------------------------------------------
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main();
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function main() {
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let ielt = document.getElementById('wfc-input');
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let oelt = document.getElementById('wfc-output');
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let cb_resize = document.getElementById('auto-resize-output');
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let cb_scroll = document.getElementById('auto-scroll');
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let MAX_OELT_HEIGHT = 300;
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ielt.addEventListener('keydown', function (e) {
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on_input_key(e, ielt, oelt, cb_resize, cb_scroll, MAX_OELT_HEIGHT);
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});
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}
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// when user hits any key
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async function on_input_key(evt, ielt, oelt, cb_resize, cb_scroll, max_height) {
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if (evt.key === 'Enter') {
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// don't do default thing
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evt.preventDefault();
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// grab contents
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let contents = ielt.value;
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let trimmed = contents.trim();
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let nonempty = trimmed.length > 0;
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// if contents are nonempty
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if (nonempty) {
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// clear input
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ielt.value = '';
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// put in output
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oelt.value += '> ' + trimmed + '\n';
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oelt.hidden = false;
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// query backend for result
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let result = await fetch_wfcin(trimmed);
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if (result.ok)
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oelt.value += result.result;
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else
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oelt.value += result.error;
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oelt.value += '\n';
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// auto-resize
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libfewd.auto_resize(cb_resize, oelt, max_height);
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libfewd.auto_scroll_to_bottom(cb_scroll, oelt);
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}
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}
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}
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function assert(condition, fail_msg) {
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if (!condition)
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throw new Error(fail_msg);
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}
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async function fetch_wfcin(user_line) {
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let req_body_obj = { wfcin: user_line };
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let req_body_str = JSON.stringify(req_body_obj);
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let req_options = { method: 'POST',
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headers: { 'content-type': 'application/json' },
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body: req_body_str };
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// default result = somehow neither branch of code below was run(?)
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// putting this here so ts doesn't chimp out
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let result = { ok: false,
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error: 'IT DO BE LIKE THAT MISTA STANCIL' };
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try {
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let response = await fetch('/wfcin', req_options);
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if (response.ok)
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result = await response.json();
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else {
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console.log('bad http response:', response);
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result = { ok: false, error: 'BAD HTTP RESPONSE' };
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}
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}
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catch (x) {
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console.log('network error:', x);
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result = { ok: false, error: 'NETWORK ERROR' };
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}
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return result;
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}
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//# sourceMappingURL=wfc.js.map
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