793 lines
33 KiB
JavaScript
793 lines
33 KiB
JavaScript
import { power_user } from '../power-user.js';
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import { debounce, escapeRegex } from '../utils.js';
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import { AutoCompleteOption } from './AutoCompleteOption.js';
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import { AutoCompleteFuzzyScore } from './AutoCompleteFuzzyScore.js';
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import { BlankAutoCompleteOption } from './BlankAutoCompleteOption.js';
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// eslint-disable-next-line no-unused-vars
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import { AutoCompleteNameResult } from './AutoCompleteNameResult.js';
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import { AutoCompleteSecondaryNameResult } from './AutoCompleteSecondaryNameResult.js';
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/**@readonly*/
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/**@enum {Number}*/
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export const AUTOCOMPLETE_WIDTH = {
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'INPUT': 0,
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'CHAT': 1,
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'FULL': 2,
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};
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export class AutoComplete {
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/**@type {HTMLTextAreaElement}*/ textarea;
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/**@type {boolean}*/ isFloating = false;
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/**@type {()=>boolean}*/ checkIfActivate;
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/**@type {(text:string, index:number) => Promise<AutoCompleteNameResult>}*/ getNameAt;
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/**@type {boolean}*/ isActive = false;
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/**@type {boolean}*/ isReplaceable = false;
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/**@type {boolean}*/ isShowingDetails = false;
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/**@type {boolean}*/ wasForced = false;
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/**@type {boolean}*/ isForceHidden = false;
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/**@type {boolean}*/ canBeAutoHidden = false;
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/**@type {string}*/ text;
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/**@type {AutoCompleteNameResult}*/ parserResult;
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/**@type {AutoCompleteSecondaryNameResult}*/ secondaryParserResult;
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get effectiveParserResult() { return this.secondaryParserResult ?? this.parserResult; }
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/**@type {string}*/ name;
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/**@type {boolean}*/ startQuote;
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/**@type {boolean}*/ endQuote;
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/**@type {number}*/ selectionStart;
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/**@type {RegExp}*/ fuzzyRegex;
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/**@type {AutoCompleteOption[]}*/ result = [];
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/**@type {AutoCompleteOption}*/ selectedItem = null;
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/**@type {HTMLElement}*/ clone;
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/**@type {HTMLElement}*/ domWrap;
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/**@type {HTMLElement}*/ dom;
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/**@type {HTMLElement}*/ detailsWrap;
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/**@type {HTMLElement}*/ detailsDom;
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/**@type {function}*/ renderDebounced;
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/**@type {function}*/ renderDetailsDebounced;
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/**@type {function}*/ updatePositionDebounced;
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/**@type {function}*/ updateDetailsPositionDebounced;
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/**@type {function}*/ updateFloatingPositionDebounced;
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get matchType() {
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return power_user.stscript.matching ?? 'fuzzy';
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}
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get autoHide() {
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return power_user.stscript.autocomplete.autoHide ?? false;
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}
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/**
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* @param {HTMLTextAreaElement} textarea The textarea to receive autocomplete.
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* @param {() => boolean} checkIfActivate Function should return true only if under the current conditions, autocomplete should display (e.g., for slash commands: autoComplete.text[0] == '/')
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* @param {(text: string, index: number) => Promise<AutoCompleteNameResult>} getNameAt Function should return (unfiltered, matching against input is done in AutoComplete) information about name options at index in text.
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* @param {boolean} isFloating Whether autocomplete should float at the keyboard cursor.
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*/
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constructor(textarea, checkIfActivate, getNameAt, isFloating = false) {
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this.textarea = textarea;
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this.checkIfActivate = checkIfActivate;
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this.getNameAt = getNameAt;
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this.isFloating = isFloating;
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this.domWrap = document.createElement('div'); {
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this.domWrap.classList.add('autoComplete-wrap');
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if (isFloating) this.domWrap.classList.add('isFloating');
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}
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this.dom = document.createElement('ul'); {
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this.dom.classList.add('autoComplete');
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this.domWrap.append(this.dom);
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}
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this.detailsWrap = document.createElement('div'); {
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this.detailsWrap.classList.add('autoComplete-detailsWrap');
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if (isFloating) this.detailsWrap.classList.add('isFloating');
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}
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this.detailsDom = document.createElement('div'); {
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this.detailsDom.classList.add('autoComplete-details');
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this.detailsWrap.append(this.detailsDom);
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}
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this.renderDebounced = debounce(this.render.bind(this), 10);
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this.renderDetailsDebounced = debounce(this.renderDetails.bind(this), 10);
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this.updatePositionDebounced = debounce(this.updatePosition.bind(this), 10);
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this.updateDetailsPositionDebounced = debounce(this.updateDetailsPosition.bind(this), 10);
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this.updateFloatingPositionDebounced = debounce(this.updateFloatingPosition.bind(this), 10);
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textarea.addEventListener('input', ()=>this.text != this.textarea.value && this.show(true, this.wasForced));
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textarea.addEventListener('keydown', (evt)=>this.handleKeyDown(evt));
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textarea.addEventListener('click', ()=>this.isActive ? this.show() : null);
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textarea.addEventListener('selectionchange', ()=>this.show());
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textarea.addEventListener('blur', ()=>this.hide());
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if (isFloating) {
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textarea.addEventListener('scroll', ()=>this.updateFloatingPositionDebounced());
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}
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window.addEventListener('resize', ()=>this.updatePositionDebounced());
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}
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/**
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*
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* @param {AutoCompleteOption} option
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*/
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makeItem(option) {
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const li = option.renderItem();
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// gotta listen to pointerdown (happens before textarea-blur)
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li.addEventListener('pointerdown', (evt)=>{
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evt.preventDefault();
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this.selectedItem = this.result.find(it=>it.name == li.getAttribute('data-name'));
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this.select();
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});
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return li;
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}
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/**
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*
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* @param {AutoCompleteOption} item
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*/
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updateName(item) {
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const chars = Array.from(item.dom.querySelector('.name').children);
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switch (this.matchType) {
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case 'strict': {
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chars.forEach((it, idx)=>{
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if (idx + item.nameOffset < item.name.length) {
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it.classList.add('matched');
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} else {
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it.classList.remove('matched');
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}
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});
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break;
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}
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case 'includes': {
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const start = item.name.toLowerCase().search(this.name);
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chars.forEach((it, idx)=>{
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if (idx + item.nameOffset < start) {
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it.classList.remove('matched');
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} else if (idx + item.nameOffset < start + item.name.length) {
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it.classList.add('matched');
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} else {
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it.classList.remove('matched');
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}
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});
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break;
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}
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case 'fuzzy': {
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item.name.replace(this.fuzzyRegex, (_, ...parts)=>{
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parts.splice(-2, 2);
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if (parts.length == 2) {
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chars.forEach(c=>c.classList.remove('matched'));
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} else {
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let cIdx = item.nameOffset;
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parts.forEach((it, idx)=>{
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if (it === null || it.length == 0) return '';
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if (idx % 2 == 1) {
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chars.slice(cIdx, cIdx + it.length).forEach(c=>c.classList.add('matched'));
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} else {
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chars.slice(cIdx, cIdx + it.length).forEach(c=>c.classList.remove('matched'));
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}
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cIdx += it.length;
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});
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}
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return '';
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});
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}
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}
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return item;
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}
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/**
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* Calculate score for the fuzzy match.
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* @param {AutoCompleteOption} option
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* @returns The option.
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*/
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fuzzyScore(option) {
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const parts = this.fuzzyRegex.exec(option.name).slice(1, -1);
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let start = null;
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let consecutive = [];
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let current = '';
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let offset = 0;
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parts.forEach((part, idx) => {
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if (idx % 2 == 0) {
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if (part.length > 0) {
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if (current.length > 0) {
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consecutive.push(current);
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}
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current = '';
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}
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} else {
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if (start === null) {
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start = offset;
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}
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current += part;
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}
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offset += part.length;
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});
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if (current.length > 0) {
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consecutive.push(current);
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}
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consecutive.sort((a,b)=>b.length - a.length);
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option.score = new AutoCompleteFuzzyScore(start, consecutive[0]?.length ?? 0);
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return option;
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}
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/**
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* Compare two auto complete options by their fuzzy score.
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* @param {AutoCompleteOption} a
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* @param {AutoCompleteOption} b
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*/
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fuzzyScoreCompare(a, b) {
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if (a.score.start < b.score.start) return -1;
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if (a.score.start > b.score.start) return 1;
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if (a.score.longestConsecutive > b.score.longestConsecutive) return -1;
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if (a.score.longestConsecutive < b.score.longestConsecutive) return 1;
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return a.name.localeCompare(b.name);
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}
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basicAutoHideCheck() {
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// auto hide only if at least one char has been typed after the name + space
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return this.textarea.selectionStart > this.parserResult.start
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+ this.parserResult.name.length
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+ (this.startQuote ? 1 : 0)
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+ (this.endQuote ? 1 : 0)
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+ 1
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;
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}
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/**
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* Show the autocomplete.
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* @param {boolean} isInput Whether triggered by input.
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* @param {boolean} isForced Whether force-showing (ctrl+space).
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* @param {boolean} isSelect Whether an autocomplete option was just selected.
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*/
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async show(isInput = false, isForced = false, isSelect = false) {
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//TODO check if isInput and isForced are both required
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this.text = this.textarea.value;
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this.isReplaceable = false;
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if (document.activeElement != this.textarea) {
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// only show with textarea in focus
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return this.hide();
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}
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if (!this.checkIfActivate()) {
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// only show if provider wants to
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return this.hide();
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}
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// disable force-hide if trigger was forced
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if (isForced) this.isForceHidden = false;
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// request provider to get name result (potentially "incomplete", i.e. not an actual existing name) for
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// cursor position
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this.parserResult = await this.getNameAt(this.text, this.textarea.selectionStart);
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this.secondaryParserResult = null;
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if (!this.parserResult) {
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// don't show if no name result found, e.g., cursor's area is not a command
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return this.hide();
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}
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// need to know if name can be inside quotes, and then check if quotes are already there
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if (this.parserResult.canBeQuoted) {
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this.startQuote = this.text[this.parserResult.start] == '"';
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this.endQuote = this.startQuote && this.text[this.parserResult.start + this.parserResult.name.length + 1] == '"';
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} else {
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this.startQuote = false;
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this.endQuote = false;
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}
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// use lowercase name for matching
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this.name = this.parserResult.name.toLowerCase() ?? '';
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const isCursorInNamePart = this.textarea.selectionStart >= this.parserResult.start && this.textarea.selectionStart <= this.parserResult.start + this.parserResult.name.length + (this.startQuote ? 1 : 0);
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if (isForced || isInput) {
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// if forced (ctrl+space) or user input...
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if (isCursorInNamePart) {
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// ...and cursor is somewhere in the name part (including right behind the final char)
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// -> show autocomplete for the (partial if cursor in the middle) name
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this.name = this.name.slice(0, this.textarea.selectionStart - (this.parserResult.start) - (this.startQuote ? 1 : 0));
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this.parserResult.name = this.name;
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this.isReplaceable = true;
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this.isForceHidden = false;
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this.canBeAutoHidden = false;
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} else {
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this.isReplaceable = false;
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this.canBeAutoHidden = this.basicAutoHideCheck();
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}
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} else {
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// if not forced and no user input -> just show details
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this.isReplaceable = false;
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this.canBeAutoHidden = this.basicAutoHideCheck();
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}
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if (isForced || isInput || isSelect) {
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// is forced or user input or just selected autocomplete option...
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if (!isCursorInNamePart) {
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// ...and cursor is not somwehere in the main name part -> check for secondary options (e.g., named arguments)
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const result = this.parserResult.getSecondaryNameAt(this.text, this.textarea.selectionStart, isSelect);
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if (result && (isForced || result.isRequired)) {
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this.secondaryParserResult = result;
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this.name = this.secondaryParserResult.name;
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this.isReplaceable = isForced || this.secondaryParserResult.isRequired;
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this.isForceHidden = false;
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this.canBeAutoHidden = false;
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} else {
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this.isReplaceable = false;
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this.canBeAutoHidden = this.basicAutoHideCheck();
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}
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}
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}
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if (this.matchType == 'fuzzy') {
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// only build the fuzzy regex if match type is set to fuzzy
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this.fuzzyRegex = new RegExp(`^(.*?)${this.name.split('').map(char=>`(${escapeRegex(char)})`).join('(.*?)')}(.*?)$`, 'i');
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}
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//TODO maybe move the matchers somewhere else; a single match function? matchType is available as property
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const matchers = {
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'strict': (name) => name.toLowerCase().startsWith(this.name),
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'includes': (name) => name.toLowerCase().includes(this.name),
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'fuzzy': (name) => this.fuzzyRegex.test(name),
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};
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this.result = this.effectiveParserResult.optionList
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// filter the list of options by the partial name according to the matching type
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.filter(it => this.isReplaceable || it.name == '' ? matchers[this.matchType](it.name) : it.name.toLowerCase() == this.name)
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// remove aliases
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.filter((it,idx,list) => list.findIndex(opt=>opt.value == it.value) == idx);
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if (this.result.length == 0 && this.effectiveParserResult != this.parserResult && isForced) {
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// no matching secondary results and forced trigger -> show current command details
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this.secondaryParserResult = null;
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this.result = [this.effectiveParserResult.optionList.find(it=>it.name == this.effectiveParserResult.name)];
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this.name = this.effectiveParserResult.name;
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this.fuzzyRegex = /(.*)(.*)(.*)/;
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}
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this.result = this.result
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// update remaining options
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.map(option => {
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// build element
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option.dom = this.makeItem(option);
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// update replacer and add quotes if necessary
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if (this.effectiveParserResult.canBeQuoted) {
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option.replacer = option.name.includes(' ') || this.startQuote || this.endQuote ? `"${option.name}"` : `${option.name}`;
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} else {
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option.replacer = option.name;
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}
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// calculate fuzzy score if matching is fuzzy
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if (this.matchType == 'fuzzy') this.fuzzyScore(option);
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// update the name to highlight the matched chars
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this.updateName(option);
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return option;
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})
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// sort by fuzzy score or alphabetical
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.toSorted(this.matchType == 'fuzzy' ? this.fuzzyScoreCompare : (a, b) => a.name.localeCompare(b.name))
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;
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if (this.isForceHidden) {
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// hidden with escape
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return this.hide();
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}
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if (this.autoHide && this.canBeAutoHidden && !isForced && this.effectiveParserResult == this.parserResult && this.result.length == 1) {
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// auto hide user setting enabled and somewhere after name part and would usually show command details
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return this.hide();
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}
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if (this.result.length == 0) {
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if (!isInput) {
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// no result and no input? hide autocomplete
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return this.hide();
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}
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// otherwise add "no match" notice
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const option = new BlankAutoCompleteOption(
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this.name.length ?
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this.effectiveParserResult.makeNoMatchText()
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: this.effectiveParserResult.makeNoOptionstext()
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,
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);
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this.result.push(option);
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} else if (this.result.length == 1 && this.effectiveParserResult && this.result[0].name == this.effectiveParserResult.name) {
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// only one result that is exactly the current value? just show hint, no autocomplete
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this.isReplaceable = false;
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this.isShowingDetails = false;
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} else if (!this.isReplaceable && this.result.length > 1) {
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return this.hide();
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}
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this.selectedItem = this.result[0];
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this.isActive = true;
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this.wasForced = isForced;
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this.renderDebounced();
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}
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/**
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* Hide autocomplete.
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*/
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hide() {
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this.domWrap?.remove();
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this.detailsWrap?.remove();
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this.isActive = false;
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this.isShowingDetails = false;
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this.wasForced = false;
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}
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/**
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* Create updated DOM.
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*/
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render() {
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if (!this.isActive) return this.domWrap.remove();
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if (this.isReplaceable) {
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this.dom.innerHTML = '';
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const frag = document.createDocumentFragment();
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for (const item of this.result) {
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if (item == this.selectedItem) {
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item.dom.classList.add('selected');
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} else {
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item.dom.classList.remove('selected');
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}
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frag.append(item.dom);
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}
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this.dom.append(frag);
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this.updatePosition();
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document.body.append(this.domWrap);
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} else {
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this.domWrap.remove();
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}
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this.renderDetailsDebounced();
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}
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/**
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* Create updated DOM for details.
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*/
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renderDetails() {
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if (!this.isActive) return this.detailsWrap.remove();
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if (!this.isShowingDetails && this.isReplaceable) return this.detailsWrap.remove();
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this.detailsDom.innerHTML = '';
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this.detailsDom.append(this.selectedItem?.renderDetails() ?? 'NO ITEM');
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document.body.append(this.detailsWrap);
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this.updateDetailsPositionDebounced();
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}
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/**
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* Update position of DOM.
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*/
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updatePosition() {
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if (this.isFloating) {
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this.updateFloatingPosition();
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} else {
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const rect = {};
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rect[AUTOCOMPLETE_WIDTH.INPUT] = this.textarea.getBoundingClientRect();
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rect[AUTOCOMPLETE_WIDTH.CHAT] = document.querySelector('#sheld').getBoundingClientRect();
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rect[AUTOCOMPLETE_WIDTH.FULL] = document.body.getBoundingClientRect();
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this.domWrap.style.setProperty('--bottom', `${window.innerHeight - rect[AUTOCOMPLETE_WIDTH.INPUT].top}px`);
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this.dom.style.setProperty('--bottom', `${window.innerHeight - rect[AUTOCOMPLETE_WIDTH.INPUT].top}px`);
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this.domWrap.style.bottom = `${window.innerHeight - rect[AUTOCOMPLETE_WIDTH.INPUT].top}px`;
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if (this.isShowingDetails) {
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this.domWrap.style.setProperty('--leftOffset', '1vw');
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this.domWrap.style.setProperty('--leftOffset', `max(1vw, ${rect[power_user.stscript.autocomplete.width.left].left}px)`);
|
|
this.domWrap.style.setProperty('--rightOffset', `calc(100vw - min(${rect[power_user.stscript.autocomplete.width.right].right}px, ${this.isShowingDetails ? 74 : 0}vw)`);
|
|
} else {
|
|
this.domWrap.style.setProperty('--leftOffset', `max(1vw, ${rect[power_user.stscript.autocomplete.width.left].left}px)`);
|
|
this.domWrap.style.setProperty('--rightOffset', `calc(100vw - min(99vw, ${rect[power_user.stscript.autocomplete.width.right].right}px)`);
|
|
}
|
|
this.updateDetailsPosition();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update position of details DOM.
|
|
*/
|
|
updateDetailsPosition() {
|
|
if (this.isShowingDetails || !this.isReplaceable) {
|
|
if (this.isFloating) {
|
|
this.updateFloatingDetailsPosition();
|
|
} else {
|
|
const rect = {};
|
|
rect[AUTOCOMPLETE_WIDTH.INPUT] = this.textarea.getBoundingClientRect();
|
|
rect[AUTOCOMPLETE_WIDTH.CHAT] = document.querySelector('#sheld').getBoundingClientRect();
|
|
rect[AUTOCOMPLETE_WIDTH.FULL] = document.body.getBoundingClientRect();
|
|
if (this.isReplaceable) {
|
|
this.detailsWrap.classList.remove('full');
|
|
const selRect = this.selectedItem.dom.children[0].getBoundingClientRect();
|
|
this.detailsWrap.style.setProperty('--targetOffset', `${selRect.top}`);
|
|
this.detailsWrap.style.setProperty('--rightOffset', '1vw');
|
|
this.detailsWrap.style.setProperty('--bottomOffset', `calc(100vh - ${rect[AUTOCOMPLETE_WIDTH.INPUT].top}px)`);
|
|
this.detailsWrap.style.setProperty('--leftOffset', `calc(100vw - ${this.domWrap.style.getPropertyValue('--rightOffset')}`);
|
|
} else {
|
|
this.detailsWrap.classList.add('full');
|
|
this.detailsWrap.style.setProperty('--targetOffset', `${rect[AUTOCOMPLETE_WIDTH.INPUT].top}`);
|
|
this.detailsWrap.style.setProperty('--bottomOffset', `calc(100vh - ${rect[AUTOCOMPLETE_WIDTH.INPUT].top}px)`);
|
|
this.detailsWrap.style.setProperty('--leftOffset', `${rect[power_user.stscript.autocomplete.width.left].left}px`);
|
|
this.detailsWrap.style.setProperty('--rightOffset', `calc(100vw - ${rect[power_user.stscript.autocomplete.width.right].right}px)`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Update position of floating autocomplete.
|
|
*/
|
|
updateFloatingPosition() {
|
|
const location = this.getCursorPosition();
|
|
const rect = this.textarea.getBoundingClientRect();
|
|
// cursor is out of view -> hide
|
|
if (location.bottom < rect.top || location.top > rect.bottom || location.left < rect.left || location.left > rect.right) {
|
|
return this.hide();
|
|
}
|
|
const left = Math.max(rect.left, location.left);
|
|
this.domWrap.style.setProperty('--targetOffset', `${left}`);
|
|
if (location.top <= window.innerHeight / 2) {
|
|
// if cursor is in lower half of window, show list above line
|
|
this.domWrap.style.top = `${location.bottom}px`;
|
|
this.domWrap.style.bottom = 'auto';
|
|
this.domWrap.style.maxHeight = `calc(${location.bottom}px - 1vh)`;
|
|
} else {
|
|
// if cursor is in upper half of window, show list below line
|
|
this.domWrap.style.top = 'auto';
|
|
this.domWrap.style.bottom = `calc(100vh - ${location.top}px)`;
|
|
this.domWrap.style.maxHeight = `calc(${location.top}px - 1vh)`;
|
|
}
|
|
}
|
|
|
|
updateFloatingDetailsPosition(location = null) {
|
|
if (!location) location = this.getCursorPosition();
|
|
const rect = this.textarea.getBoundingClientRect();
|
|
if (location.bottom < rect.top || location.top > rect.bottom || location.left < rect.left || location.left > rect.right) {
|
|
return this.hide();
|
|
}
|
|
const left = Math.max(rect.left, location.left);
|
|
this.detailsWrap.style.setProperty('--targetOffset', `${left}`);
|
|
if (this.isReplaceable) {
|
|
this.detailsWrap.classList.remove('full');
|
|
if (left < window.innerWidth / 4) {
|
|
// if cursor is in left part of screen, show details on right of list
|
|
this.detailsWrap.classList.add('right');
|
|
this.detailsWrap.classList.remove('left');
|
|
} else {
|
|
// if cursor is in right part of screen, show details on left of list
|
|
this.detailsWrap.classList.remove('right');
|
|
this.detailsWrap.classList.add('left');
|
|
}
|
|
} else {
|
|
this.detailsWrap.classList.remove('left');
|
|
this.detailsWrap.classList.remove('right');
|
|
this.detailsWrap.classList.add('full');
|
|
}
|
|
if (location.top <= window.innerHeight / 2) {
|
|
// if cursor is in lower half of window, show list above line
|
|
this.detailsWrap.style.top = `${location.bottom}px`;
|
|
this.detailsWrap.style.bottom = 'auto';
|
|
this.detailsWrap.style.maxHeight = `calc(${location.bottom}px - 1vh)`;
|
|
} else {
|
|
// if cursor is in upper half of window, show list below line
|
|
this.detailsWrap.style.top = 'auto';
|
|
this.detailsWrap.style.bottom = `calc(100vh - ${location.top}px)`;
|
|
this.detailsWrap.style.maxHeight = `calc(${location.top}px - 1vh)`;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Calculate (keyboard) cursor coordinates within textarea.
|
|
* @returns {{left:number, top:number, bottom:number}}
|
|
*/
|
|
getCursorPosition() {
|
|
const inputRect = this.textarea.getBoundingClientRect();
|
|
const style = window.getComputedStyle(this.textarea);
|
|
if (!this.clone) {
|
|
this.clone = document.createElement('div');
|
|
for (const key of style) {
|
|
this.clone.style[key] = style[key];
|
|
}
|
|
this.clone.style.position = 'fixed';
|
|
this.clone.style.visibility = 'hidden';
|
|
document.body.append(this.clone);
|
|
const mo = new MutationObserver(muts=>{
|
|
if (muts.find(it=>Array.from(it.removedNodes).includes(this.textarea))) {
|
|
this.clone.remove();
|
|
}
|
|
});
|
|
mo.observe(this.textarea.parentElement, { childList:true });
|
|
}
|
|
this.clone.style.height = `${inputRect.height}px`;
|
|
this.clone.style.left = `${inputRect.left}px`;
|
|
this.clone.style.top = `${inputRect.top}px`;
|
|
this.clone.style.whiteSpace = style.whiteSpace;
|
|
this.clone.style.tabSize = style.tabSize;
|
|
const text = this.textarea.value;
|
|
const before = text.slice(0, this.textarea.selectionStart);
|
|
this.clone.textContent = before;
|
|
const locator = document.createElement('span');
|
|
locator.textContent = text[this.textarea.selectionStart];
|
|
this.clone.append(locator);
|
|
this.clone.append(text.slice(this.textarea.selectionStart + 1));
|
|
this.clone.scrollTop = this.textarea.scrollTop;
|
|
this.clone.scrollLeft = this.textarea.scrollLeft;
|
|
const locatorRect = locator.getBoundingClientRect();
|
|
const location = {
|
|
left: locatorRect.left,
|
|
top: locatorRect.top,
|
|
bottom: locatorRect.bottom,
|
|
};
|
|
return location;
|
|
}
|
|
|
|
|
|
/**
|
|
* Toggle details view alongside autocomplete list.
|
|
*/
|
|
toggleDetails() {
|
|
this.isShowingDetails = !this.isShowingDetails;
|
|
this.renderDetailsDebounced();
|
|
this.updatePosition();
|
|
}
|
|
|
|
|
|
/**
|
|
* Select an item for autocomplete and put text into textarea.
|
|
*/
|
|
async select() {
|
|
if (this.isReplaceable && this.selectedItem.value !== null) {
|
|
this.textarea.value = `${this.text.slice(0, this.effectiveParserResult.start)}${this.selectedItem.replacer}${this.text.slice(this.effectiveParserResult.start + this.effectiveParserResult.name.length + (this.startQuote ? 1 : 0) + (this.endQuote ? 1 : 0))}`;
|
|
this.textarea.selectionStart = this.effectiveParserResult.start + this.selectedItem.replacer.length;
|
|
this.textarea.selectionEnd = this.textarea.selectionStart;
|
|
this.show(false, false, true);
|
|
} else {
|
|
const selectionStart = this.textarea.selectionStart;
|
|
const selectionEnd = this.textarea.selectionDirection;
|
|
this.textarea.selectionStart = selectionStart;
|
|
this.textarea.selectionDirection = selectionEnd;
|
|
}
|
|
this.wasForced = false;
|
|
this.textarea.dispatchEvent(new Event('input', { bubbles:true }));
|
|
}
|
|
|
|
|
|
/**
|
|
* Mark the item at newIdx in the autocomplete list as selected.
|
|
* @param {number} newIdx
|
|
*/
|
|
selectItemAtIndex(newIdx) {
|
|
this.selectedItem.dom.classList.remove('selected');
|
|
this.selectedItem = this.result[newIdx];
|
|
this.selectedItem.dom.classList.add('selected');
|
|
const rect = this.selectedItem.dom.children[0].getBoundingClientRect();
|
|
const rectParent = this.dom.getBoundingClientRect();
|
|
if (rect.top < rectParent.top || rect.bottom > rectParent.bottom ) {
|
|
this.dom.scrollTop += rect.top < rectParent.top ? rect.top - rectParent.top : rect.bottom - rectParent.bottom;
|
|
}
|
|
this.renderDetailsDebounced();
|
|
}
|
|
|
|
/**
|
|
* Handle keyboard events.
|
|
* @param {KeyboardEvent} evt The event.
|
|
*/
|
|
async handleKeyDown(evt) {
|
|
// autocomplete is shown and cursor at end of current command name (or inside name and typed or forced)
|
|
if (this.isActive && this.isReplaceable) {
|
|
// actions in the list
|
|
switch (evt.key) {
|
|
case 'ArrowUp': {
|
|
// select previous item
|
|
if (evt.ctrlKey || evt.altKey || evt.shiftKey) return;
|
|
evt.preventDefault();
|
|
evt.stopPropagation();
|
|
const idx = this.result.indexOf(this.selectedItem);
|
|
let newIdx;
|
|
if (idx == 0) newIdx = this.result.length - 1;
|
|
else newIdx = idx - 1;
|
|
this.selectItemAtIndex(newIdx);
|
|
return;
|
|
}
|
|
case 'ArrowDown': {
|
|
// select next item
|
|
if (evt.ctrlKey || evt.altKey || evt.shiftKey) return;
|
|
evt.preventDefault();
|
|
evt.stopPropagation();
|
|
const idx = this.result.indexOf(this.selectedItem);
|
|
const newIdx = (idx + 1) % this.result.length;
|
|
this.selectItemAtIndex(newIdx);
|
|
return;
|
|
}
|
|
case 'Enter': {
|
|
// pick the selected item to autocomplete
|
|
if (evt.ctrlKey || evt.altKey || evt.shiftKey || this.selectedItem.value == '') break;
|
|
if (this.selectedItem.name == this.name) break;
|
|
evt.preventDefault();
|
|
evt.stopImmediatePropagation();
|
|
this.select();
|
|
return;
|
|
}
|
|
case 'Tab': {
|
|
// pick the selected item to autocomplete
|
|
if (evt.ctrlKey || evt.altKey || evt.shiftKey || this.selectedItem.value == '') break;
|
|
evt.preventDefault();
|
|
evt.stopImmediatePropagation();
|
|
this.select();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
// details are shown, cursor can be anywhere
|
|
if (this.isActive) {
|
|
switch (evt.key) {
|
|
case 'Escape': {
|
|
// close autocomplete
|
|
if (evt.ctrlKey || evt.altKey || evt.shiftKey) return;
|
|
evt.preventDefault();
|
|
evt.stopPropagation();
|
|
this.isForceHidden = true;
|
|
this.wasForced = false;
|
|
this.hide();
|
|
return;
|
|
}
|
|
case 'Enter': {
|
|
// hide autocomplete on enter (send, execute, ...)
|
|
if (!evt.shiftKey) {
|
|
this.hide();
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// autocomplete shown or not, cursor anywhere
|
|
switch (evt.key) {
|
|
case ' ': {
|
|
if (evt.ctrlKey) {
|
|
if (this.isActive && this.isReplaceable) {
|
|
// ctrl-space to toggle details for selected item
|
|
this.toggleDetails();
|
|
} else {
|
|
// ctrl-space to force show autocomplete
|
|
this.show(false, true);
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (['Control', 'Shift', 'Alt'].includes(evt.key)) {
|
|
// ignore keydown on modifier keys
|
|
return;
|
|
}
|
|
switch (evt.key) {
|
|
case 'ArrowUp':
|
|
case 'ArrowDown':
|
|
case 'ArrowRight':
|
|
case 'ArrowLeft': {
|
|
if (this.isActive) {
|
|
// keyboard navigation, wait for keyup to complete cursor move
|
|
const oldText = this.textarea.value;
|
|
await new Promise(resolve=>{
|
|
window.addEventListener('keyup', resolve, { once:true });
|
|
});
|
|
if (this.selectionStart != this.textarea.selectionStart) {
|
|
this.selectionStart = this.textarea.selectionStart;
|
|
this.show(this.isReplaceable || oldText != this.textarea.value);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
if (this.isActive) {
|
|
this.text != this.textarea.value && this.show(this.isReplaceable);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|