Telegram Web K with changes to work inside I2P
https://web.telegram.i2p/
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258 lines
7.8 KiB
258 lines
7.8 KiB
import { getRichValue, isInputEmpty } from "../helpers/dom"; |
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import { debounce } from "../helpers/schedulers"; |
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import { checkRTL } from "../helpers/string"; |
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import { i18n, LangPackKey, _i18n } from "../lib/langPack"; |
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import RichTextProcessor from "../lib/richtextprocessor"; |
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let init = () => { |
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document.addEventListener('paste', (e) => { |
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if(!(e.target as HTMLElement).hasAttribute('contenteditable') && !(e.target as HTMLElement).parentElement.hasAttribute('contenteditable')) { |
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return; |
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} |
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//console.log('document paste'); |
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//console.log('messageInput paste'); |
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e.preventDefault(); |
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// @ts-ignore |
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let text = (e.originalEvent || e).clipboardData.getData('text/plain'); |
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let entities = RichTextProcessor.parseEntities(text); |
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//console.log('messageInput paste', text, entities); |
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entities = entities.filter(e => e._ === 'messageEntityEmoji' || e._ === 'messageEntityLinebreak'); |
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//text = RichTextProcessor.wrapEmojiText(text); |
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text = RichTextProcessor.wrapRichText(text, {entities, noLinks: true, wrappingDraft: true}); |
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// console.log('messageInput paste after', text); |
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// @ts-ignore |
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//let html = (e.originalEvent || e).clipboardData.getData('text/html'); |
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// @ts-ignore |
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//console.log('paste text', text, ); |
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window.document.execCommand('insertHTML', false, text); |
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}); |
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init = null; |
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}; |
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const checkAndSetRTL = (input: HTMLElement) => { |
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//const isEmpty = isInputEmpty(input); |
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//console.log('input', isEmpty); |
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//const char = [...getRichValue(input)][0]; |
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const char = (input instanceof HTMLInputElement ? input.value : input.innerText)[0]; |
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let direction = 'ltr'; |
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if(char && checkRTL(char)) { |
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direction = 'rtl'; |
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} |
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//console.log('RTL', direction, char); |
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input.style.direction = direction; |
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}; |
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export enum InputState { |
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Neutral = 0, |
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Valid = 1, |
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Error = 2 |
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}; |
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export type InputFieldOptions = { |
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placeholder?: LangPackKey, |
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label?: LangPackKey, |
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name?: string, |
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maxLength?: number, |
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showLengthOn?: number, |
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plainText?: true, |
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animate?: true |
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}; |
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class InputField { |
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public container: HTMLElement; |
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public input: HTMLElement; |
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public inputFake: HTMLElement; |
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public label: HTMLLabelElement; |
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public originalValue: string; |
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//public onLengthChange: (length: number, isOverflow: boolean) => void; |
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protected wasInputFakeClientHeight: number; |
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protected showScrollDebounced: () => void; |
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constructor(public options: InputFieldOptions = {}) { |
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this.container = document.createElement('div'); |
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this.container.classList.add('input-field'); |
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if(options.maxLength) { |
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options.showLengthOn = Math.round(options.maxLength / 3); |
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} |
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const {placeholder, label, maxLength, showLengthOn, name, plainText} = options; |
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let input: HTMLElement; |
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if(!plainText) { |
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if(init) { |
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init(); |
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} |
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this.container.innerHTML = ` |
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<div ${placeholder ? `data-placeholder="${placeholder}"` : ''} contenteditable="true" class="input-field-input"></div> |
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`; |
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input = this.container.firstElementChild as HTMLElement; |
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const observer = new MutationObserver(() => { |
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checkAndSetRTL(input); |
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if(processInput) { |
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processInput(); |
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} |
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}); |
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// * because if delete all characters there will br left |
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input.addEventListener('input', () => { |
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if(isInputEmpty(input)) { |
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input.innerHTML = ''; |
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} |
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if(this.inputFake) { |
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this.inputFake.innerHTML = input.innerHTML; |
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this.onFakeInput(); |
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} |
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}); |
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// ! childList for paste first symbol |
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observer.observe(input, {characterData: true, childList: true, subtree: true}); |
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if(options.animate) { |
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input.classList.add('scrollable', 'scrollable-y'); |
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this.wasInputFakeClientHeight = 0; |
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this.showScrollDebounced = debounce(() => this.input.classList.remove('no-scrollbar'), 150, false, true); |
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this.inputFake = document.createElement('div'); |
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this.inputFake.setAttribute('contenteditable', 'true'); |
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this.inputFake.className = input.className + ' input-field-input-fake'; |
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} |
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} else { |
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this.container.innerHTML = ` |
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<input type="text" ${name ? `name="${name}"` : ''} autocomplete="off" ${label ? 'required=""' : ''} class="input-field-input"> |
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`; |
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input = this.container.firstElementChild as HTMLElement; |
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input.addEventListener('input', () => checkAndSetRTL(input)); |
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if(placeholder) { |
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_i18n(input, placeholder, undefined, 'placeholder'); |
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} |
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} |
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if(label) { |
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this.label = document.createElement('label'); |
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this.label.append(i18n(label)); |
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this.container.append(this.label); |
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} |
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let processInput: () => void; |
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if(maxLength) { |
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const labelEl = this.container.lastElementChild as HTMLLabelElement; |
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let showingLength = false; |
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processInput = () => { |
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const wasError = input.classList.contains('error'); |
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// * https://stackoverflow.com/a/54369605 #2 to count emoji as 1 symbol |
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const inputLength = plainText ? (input as HTMLInputElement).value.length : [...getRichValue(input)].length; |
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const diff = maxLength - inputLength; |
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const isError = diff < 0; |
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input.classList.toggle('error', isError); |
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//this.onLengthChange && this.onLengthChange(inputLength, isError); |
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if(isError || diff <= showLengthOn) { |
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labelEl.innerHTML = ''; |
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labelEl.append(i18n(label), ` (${maxLength - inputLength})`); |
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if(!showingLength) showingLength = true; |
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} else if((wasError && !isError) || showingLength) { |
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labelEl.innerHTML = ''; |
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labelEl.append(i18n(label)); |
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showingLength = false; |
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} |
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}; |
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input.addEventListener('input', processInput); |
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} |
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this.input = input; |
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} |
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public onFakeInput() { |
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const {scrollHeight, clientHeight} = this.inputFake; |
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if(this.wasInputFakeClientHeight && this.wasInputFakeClientHeight !== clientHeight) { |
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this.input.classList.add('no-scrollbar'); // ! в сафари может вообще не появиться скролл после анимации, так как ему нужен полный reflow блока с overflow. |
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this.showScrollDebounced(); |
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} |
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this.wasInputFakeClientHeight = clientHeight; |
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this.input.style.height = scrollHeight ? scrollHeight + 'px' : ''; |
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} |
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get value() { |
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return this.options.plainText ? (this.input as HTMLInputElement).value : getRichValue(this.input); |
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//return getRichValue(this.input); |
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} |
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set value(value: string) { |
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this.setValueSilently(value, false); |
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const event = new Event('input', {bubbles: true, cancelable: true}); |
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this.input.dispatchEvent(event); |
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} |
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public setValueSilently(value: string, fireFakeInput = true) { |
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if(this.options.plainText) { |
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(this.input as HTMLInputElement).value = value; |
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} else { |
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this.input.innerHTML = value; |
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if(this.inputFake) { |
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this.inputFake.innerHTML = value; |
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if(fireFakeInput) { |
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this.onFakeInput(); |
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} |
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} |
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} |
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} |
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public isValid() { |
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return !this.input.classList.contains('error') && this.value !== this.originalValue; |
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} |
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public setOriginalValue(value: InputField['originalValue'] = '', silent = false) { |
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this.originalValue = value; |
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if(!this.options.plainText) { |
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value = RichTextProcessor.wrapDraftText(value); |
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} |
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if(silent) { |
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this.setValueSilently(value, false); |
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} else { |
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this.value = value; |
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} |
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} |
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public setState(state: InputState, label?: LangPackKey) { |
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if(label) { |
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this.label.innerHTML = ''; |
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this.label.append(i18n(label)); |
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} |
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this.input.classList.toggle('error', !!(state & InputState.Error)); |
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this.input.classList.toggle('valid', !!(state & InputState.Valid)); |
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} |
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public setError(label?: LangPackKey) { |
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this.setState(InputState.Error, label); |
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} |
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} |
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export default InputField;
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