@omnedia/rxjs-typewriter/dist/index.js

A simple typewriter effect to animate text.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from2, except, desc) => {
  if (from2 && typeof from2 === "object" || typeof from2 === "function") {
    for (let key of __getOwnPropNames(from2))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from2[key], enumerable: !(desc = __getOwnPropDesc(from2, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  TypeWriter: () => TypeWriter
});
module.exports = __toCommonJS(src_exports);
var import_rxjs = require("rxjs");
var TypeWriter = class {
  constructor() {
    this.writeSpeed = 40;
    this.waitAfterTyped = 3500;
    this.waitAfterDeleted = 50;
    this.loop = true;
    this.wordsCount = 0;
  }
  typeWriteEffect(words, loop, writeSpeed, deleteDelay, writeDelay) {
    this.writeSpeed = writeSpeed != null ? writeSpeed : this.writeSpeed;
    this.waitAfterTyped = deleteDelay != null ? deleteDelay : this.waitAfterTyped;
    this.waitAfterDeleted = writeDelay != null ? writeDelay : this.waitAfterDeleted;
    this.loop = loop != null ? loop : this.loop;
    this.wordsCount = words.length;
    return this.startTypewriter(words);
  }
  startTypewriter(words) {
    if (this.loop === false) {
      return (0, import_rxjs.from)(words).pipe((0, import_rxjs.concatMap)((word) => this.typeEffect(word)));
    }
    return (0, import_rxjs.from)(words).pipe(
      (0, import_rxjs.concatMap)((word) => this.typeEffect(word)),
      (0, import_rxjs.repeat)()
    );
  }
  typeEffect(word) {
    if (this.loop === false) {
      this.wordsCount -= 1;
    }
    return (0, import_rxjs.concat)(
      this.typeWord(word),
      (0, import_rxjs.of)("").pipe((0, import_rxjs.delay)(this.waitAfterTyped), (0, import_rxjs.ignoreElements)()),
      this.typeWord(word, true),
      (0, import_rxjs.of)("").pipe((0, import_rxjs.delay)(this.waitAfterDeleted), (0, import_rxjs.ignoreElements)())
    );
  }
  typeWord(word, backwards) {
    if (this.loop === false && this.wordsCount <= 0 && backwards) {
      return (0, import_rxjs.of)(word);
    }
    return (0, import_rxjs.interval)(this.writeSpeed).pipe(
      (0, import_rxjs.map)((x) => {
        return backwards ? word.substring(0, word.length - x) : word.substring(0, x + 1);
      }),
      (0, import_rxjs.take)(word.length + 1)
    );
  }
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  TypeWriter
});
//# sourceMappingURL=index.js.map