HIsheR
46 lines
2.6 KiB
TypeScript
46 lines
2.6 KiB
TypeScript
import { effect, h } from '@ui-arch/frame';
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import { addonWrap } from './addons.js';
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import type { TextFieldProps } from './types.js';
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/*** 文本输入：value 信号双向绑定，disabled 支持布尔或信号禁用，onInput 为输入回调；prefix/suffix 包附加组，clearable 一键清空，maxCount 显示字数统计 ***/
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export function textField(props: TextFieldProps): HTMLElement {
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const el = h('input', { class: 'ua-input', placeholder: props.placeholder ?? '', disabled: props.disabled }) as HTMLInputElement; // false/undefined 移除属性，Signal 走响应式
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if (props.value) {
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const signal = props.value;
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el.addEventListener('input', () => signal(el.value)); // 用户输入写回信号
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effect(() => {
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if (el.value !== signal()) el.value = signal(); // 外部变化写回输入框
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});
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}
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if (props.onInput) el.addEventListener('input', () => props.onInput!(el.value));
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let clearBtn: HTMLElement | null = null; // 一键清空按钮；clearable 关闭时不创建
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if (props.clearable) {
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clearBtn = h(
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'button',
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{
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type: 'button',
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class: 'ua-input-clear is-hidden', // 初始无值隐藏
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'aria-label': '清空输入',
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tabIndex: -1, // 不进 Tab 序，清空走鼠标/触屏
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onClick: () => { el.value = ''; props.value?.(''); props.onInput?.(''); el.focus(); }, // 清空并同步信号与回调
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},
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'×',
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);
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const syncClear = (): void => { clearBtn!.classList.toggle('is-hidden', el.value === ''); }; // 有值才显示
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el.addEventListener('input', syncClear); // 用户输入时同步
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effect(() => { if (props.value) props.value(); syncClear(); }); // 外部写回时同步（读信号建依赖）
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}
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let counter: HTMLElement | null = null; // 字数统计块；maxCount 未传不创建
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if (props.maxCount) {
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el.setAttribute('maxlength', String(props.maxCount)); // 原生拦截超限输入
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counter = h('span', { class: 'ua-input-count' });
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const syncCount = (): void => { counter!.textContent = `${el.value.length}/${props.maxCount}`; }; // 实时 n/limit
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el.addEventListener('input', syncCount); // 用户输入时同步
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effect(() => { if (props.value) props.value(); syncCount(); }); // 初始与外部写回时同步（读信号建依赖）
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}
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const suffix = clearBtn || counter
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? h('span', { class: 'ua-input-clear-group' }, clearBtn, counter, props.suffix ?? null) // 清空按钮 / 计数并入后置附加组
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: props.suffix;
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return addonWrap(el, props.prefix, suffix);
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}
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