Telegram Web K with changes to work inside I2P
https://web.telegram.i2p/
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76 lines
2.6 KiB
76 lines
2.6 KiB
/* |
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* https://github.com/morethanwords/tweb |
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* Copyright (C) 2019-2021 Eduard Kuzmenko |
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* https://github.com/morethanwords/tweb/blob/master/LICENSE |
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*/ |
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import {_i18n} from '../lib/langPack'; |
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import InputField, {InputFieldOptions} from './inputField'; |
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import SetTransition from './singleTransition'; |
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export default class InputFieldAnimated extends InputField { |
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public inputFake: HTMLElement; |
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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(options?: InputFieldOptions) { |
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super(options); |
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this.input.addEventListener('input', () => { |
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this.inputFake.innerHTML = this.input.innerHTML; |
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this.onFakeInput(); |
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}); |
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if(options.placeholder) { |
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_i18n(this.inputFake, options.placeholder, undefined, 'placeholder'); |
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} |
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this.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 = this.input.className + ' input-field-input-fake'; |
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} |
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public onFakeInput(setHeight = true) { |
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const {scrollHeight: newHeight/* , 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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const currentHeight = +this.input.style.height.replace('px', ''); |
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if(currentHeight === newHeight) { |
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return; |
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} |
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const TRANSITION_DURATION_FACTOR = 50; |
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const transitionDuration = Math.round( |
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TRANSITION_DURATION_FACTOR * Math.log(Math.abs(newHeight - currentHeight)) |
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); |
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// this.wasInputFakeClientHeight = clientHeight; |
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this.input.style.transitionDuration = `${transitionDuration}ms`; |
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if(setHeight) { |
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this.input.style.height = newHeight ? newHeight + 'px' : ''; |
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} |
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const className = 'is-changing-height'; |
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SetTransition(this.input, className, true, transitionDuration, () => { |
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this.input.classList.remove(className); |
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}); |
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} |
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public setValueSilently(value: string, fromSet?: boolean) { |
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super.setValueSilently(value, fromSet); |
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this.inputFake.innerHTML = value; |
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if(!fromSet) { |
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this.onFakeInput(); |
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} |
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} |
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}
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