@dnb/eufemia/components/input-masked/text-mask/createTextMaskInputElement.js

DNB Eufemia Design System UI Library

import adjustCaretPosition from "./adjustCaretPosition.js";
import conformToMask from "./conformToMask.js";
import { convertMaskToPlaceholder, isString, isNumber, processCaretTraps } from "./utilities.js";
import { placeholderChar as defaultPlaceholderChar, strFunction } from "./constants.js";
const emptyString = '';
const strObject = 'object';
const isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
const defer = typeof requestAnimationFrame !== 'undefined' ? cb => {
  requestAnimationFrame(cb);
} : cb => {
  setTimeout(cb, 0);
};
export default function createTextMaskInputElement(config) {
  const state = {
    previousConformedValue: undefined,
    previousPlaceholder: undefined
  };
  return {
    state,
    update(rawValue, {
      inputElement,
      mask: providedMask,
      guide,
      pipe,
      placeholderChar = defaultPlaceholderChar,
      keepCharPositions = false,
      showMask = false
    } = config) {
      if (typeof rawValue === 'undefined') {
        rawValue = inputElement.value;
      }
      if (rawValue === state.previousConformedValue) {
        return;
      }
      const hasMask = obj => !!obj && typeof obj === 'object' && 'mask' in obj;
      const provided = (() => {
        if (providedMask && typeof providedMask === strObject && hasMask(providedMask)) {
          const obj = providedMask;
          pipe = obj.pipe;
          return obj.mask;
        }
        return providedMask;
      })();
      let placeholder;
      let mask;
      if (provided instanceof Array) {
        placeholder = convertMaskToPlaceholder(provided, placeholderChar);
      }
      if (provided === false) {
        return;
      }
      const safeRawValue = getSafeRawValue(rawValue);
      const currentCaretPosition = inputElement === null || inputElement === void 0 ? void 0 : inputElement.selectionEnd;
      const {
        previousConformedValue,
        previousPlaceholder
      } = state;
      let caretTrapIndexes;
      if (typeof provided === strFunction) {
        mask = provided(safeRawValue, {
          currentCaretPosition,
          previousConformedValue,
          placeholderChar
        });
        if (mask === false) {
          return;
        }
        const {
          maskWithoutCaretTraps,
          indexes
        } = processCaretTraps(mask);
        mask = maskWithoutCaretTraps;
        caretTrapIndexes = indexes;
        placeholder = convertMaskToPlaceholder(mask, placeholderChar);
      } else {
        mask = provided;
      }
      const conformToMaskConfig = {
        previousConformedValue,
        guide,
        placeholderChar,
        placeholder,
        currentCaretPosition,
        keepCharPositions
      };
      const {
        conformedValue
      } = conformToMask(safeRawValue, mask, conformToMaskConfig);
      const piped = typeof pipe === strFunction;
      let pipeResults = {
        value: conformedValue
      };
      if (piped) {
        pipeResults = pipe(conformedValue, {
          rawValue: safeRawValue,
          ...conformToMaskConfig
        });
        if (pipeResults === false) {
          pipeResults = {
            value: previousConformedValue,
            rejected: true
          };
        } else if (isString(pipeResults)) {
          pipeResults = {
            value: pipeResults
          };
        }
      }
      const finalConformedValue = piped ? pipeResults.value : conformedValue;
      const adjustedCaretPosition = adjustCaretPosition({
        previousConformedValue,
        previousPlaceholder,
        conformedValue: finalConformedValue,
        placeholder,
        rawValue: safeRawValue,
        currentCaretPosition,
        placeholderChar,
        indexesOfPipedChars: pipeResults.indexesOfPipedChars,
        caretTrapIndexes,
        keepCharPositions
      });
      const inputValueShouldBeEmpty = finalConformedValue === placeholder && adjustedCaretPosition === 0;
      const emptyValue = showMask ? placeholder : emptyString;
      const inputElementValue = inputValueShouldBeEmpty ? emptyValue : finalConformedValue;
      state.previousConformedValue = inputElementValue;
      state.previousPlaceholder = placeholder;
      if (inputElement.value === inputElementValue) {
        return;
      }
      inputElement.value = inputElementValue;
      safeSetSelection(inputElement, adjustedCaretPosition);
    }
  };
}
export function safeSetSelection(element, selectionPosition) {
  var _element$setSelection;
  if (document.activeElement === element || (element === null || element === void 0 || (_element$setSelection = element.setSelectionRange) === null || _element$setSelection === void 0 ? void 0 : _element$setSelection.name) === 'mockConstructor') {
    const select = () => {
      try {
        element.setSelectionRange(selectionPosition, selectionPosition);
      } catch (error) {}
    };
    if (isAndroid) {
      defer(select);
    } else {
      select();
    }
  }
}
function getSafeRawValue(inputValue) {
  if (isString(inputValue)) {
    return inputValue;
  } else if (isNumber(inputValue)) {
    return String(inputValue);
  } else if (inputValue === undefined || inputValue === null) {
    return emptyString;
  } else {
    throw new Error("The 'value' provided to Text Mask needs to be a string or a number. The value " + `received was:\n\n ${JSON.stringify(inputValue)}`);
  }
}
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