81 lines
2.7 KiB
JavaScript
81 lines
2.7 KiB
JavaScript
"use strict";
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import mutate from './mutate.mjs';
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let display_options = 3;
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window.addEventListener("load", (_event) => {
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const el_starting_word = document.querySelector("#starting-word");
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const el_starting_regen = document.querySelector("#starting-regen");
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if(el_starting_word.value.length > 0)
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handle_starting_keyup();
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el_starting_word.addEventListener("keyup", handle_starting_keyup);
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el_starting_regen.addEventListener("click", handle_starting_keyup);
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el_starting_regen.addEventListener("mouseup", handle_starting_keyup);
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el_starting_regen.addEventListener("touchend", handle_starting_keyup);
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});
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function handle_starting_keyup(_event) {
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const el_starting_word = document.querySelector("#starting-word");
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const el_mutations = document.querySelector("#mutations");
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el_mutations.replaceChildren(); // Empty node of all children
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mutation_step(el_starting_word.value);
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}
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function handle_mutation_word_keyup(event) {
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// 1: Find DOM elements
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const el_mutations = document.querySelector("#mutations");
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const el_step = event.target.closest(".mutation-step");
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const el_word = event.target.closest(".mutation-option");
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const els_word = el_step.querySelectorAll(".mutation-option");
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// 2: Update UI - Change classes, Remove all subsequent mutation steps
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for(let i = 0; i < els_word.length; i++)
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els_word[i].classList.remove("selected");
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el_word.classList.add("selected");
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while(el_step.nextElementSibling !== null)
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el_step.parentNode.removeChild(el_step.nextElementSibling);
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// 3: Do a new mutation step
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el_mutations.appendChild(document.createElement("hr"))
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mutation_step(el_word.dataset.word);
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}
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function mutation_step(word) {
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// 0: Validate input
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if(typeof word !== "string")
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throw new Error(`Error: Expected argument 1 (word) to be of type string, but got value of type ${typeof word}.`);
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// 1: Find DOM elements
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const el_mutations = document.querySelector("#mutations");
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// 2: Generate mutations
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// TODO: Eliminate duplicates
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const words_new = Array(display_options).fill(null)
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.map(() => mutate(word));
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// 3: Update DOM
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let el_step = document.createElement("div");
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el_step.classList.add("mutation-step");
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for(let word_item of words_new) {
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let el_word = document.createElement("span");
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el_word.classList.add("mutation-option");
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el_word.appendChild(document.createTextNode(word_item));
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el_word.dataset.word = word_item;
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el_step.appendChild(el_word);
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el_word.addEventListener("click", handle_mutation_word_keyup);
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el_word.addEventListener("touchend", handle_mutation_word_keyup);
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el_word.addEventListener("mouseup", handle_mutation_word_keyup);
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}
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el_mutations.appendChild(el_step);
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window.scrollTo(0,document.body.scrollHeight);
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}
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