molstar
Version:
A comprehensive macromolecular library.
39 lines (38 loc) • 1.72 kB
JavaScript
;
/**
* Copyright (c) 2023 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Adam Midlik <midlik@gmail.com>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.MaybeIntegerParamDefinition = MaybeIntegerParamDefinition;
exports.MaybeStringParamDefinition = MaybeStringParamDefinition;
const param_definition_1 = require("../../../mol-util/param-definition");
/** Similar to `PD.Numeric` but allows leaving empty field in UI (treated as `undefined`) */
function MaybeIntegerParamDefinition(defaultValue, info) {
return param_definition_1.ParamDefinition.Converted(stringifyMaybeInt, parseMaybeInt, param_definition_1.ParamDefinition.Text(stringifyMaybeInt(defaultValue), info));
}
/** The magic with negative zero looks crazy, but it's needed if we want to be able to write negative numbers, LOL. Please help if you know a better solution. */
function parseMaybeInt(input) {
if (input.trim() === '-')
return -0;
const num = parseInt(input);
return isNaN(num) ? undefined : num;
}
function stringifyMaybeInt(num) {
if (num === undefined)
return '';
if (Object.is(num, -0))
return '-';
return num.toString();
}
/** Similar to `PD.Text` but leaving empty field in UI is treated as `undefined` */
function MaybeStringParamDefinition(defaultValue, info) {
return param_definition_1.ParamDefinition.Converted(stringifyMaybeString, parseMaybeString, param_definition_1.ParamDefinition.Text(stringifyMaybeString(defaultValue), info));
}
function parseMaybeString(input) {
return input === '' ? undefined : input;
}
function stringifyMaybeString(str) {
return str === undefined ? '' : str;
}