538 lines
11 KiB
Plaintext
538 lines
11 KiB
Plaintext
<template>
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<div class="label">
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<slot class="prepend" name="prepend"></slot>
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${input}
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<wc-icon class="icon"></wc-icon>
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<slot class="append" name="append"></slot>
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<div class="suggestion">
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<wc-scroll>
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<ul class="list"></ul>
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</wc-scroll>
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</div>
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</div>
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</template>
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<style lang="scss">
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ul,
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li {
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list-style: none;
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}
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:host {
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overflow: hidden;
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display: inline-block;
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user-select: none;
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-moz-user-select: none;
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color: nth($cd, 2);
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border-radius: 4px;
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}
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.label {
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display: flex;
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justify-content: center;
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align-items: center;
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min-width: 64px;
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height: 32px;
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font-size: 14px;
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border: 1px solid nth($cp, 3);
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border-radius: inherit;
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background: #fff;
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color: inherit;
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cursor: text;
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input,
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textarea {
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flex: 1;
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min-width: 0;
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height: 100%;
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padding: 0 5px;
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border: 0;
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border-radius: inherit;
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color: inherit;
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font-size: inherit;
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background: none;
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outline: none;
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box-shadow: none;
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cursor: inherit;
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&::placeholder {
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color: nth($cgr, 1);
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}
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}
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textarea {
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width: 100%;
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padding: 5px;
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resize: none;
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}
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.prepend,
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.append {
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display: none;
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justify-content: center;
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align-items: center;
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width: auto;
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height: 30px;
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padding: 0 10px;
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background: nth($cp, 1);
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}
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.prepend {
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border-right: 1px solid nth($cp, 3);
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border-radius: 4px 0 0 4px;
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}
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.append {
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border-left: 1px solid nth($cp, 3);
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border-radius: 0 4px 4px 0;
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}
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&[prepend] .prepend,
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&[append] .append {
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display: flex;
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}
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/* ----- */
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.icon {
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padding: 0 5px;
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--size: 20px;
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}
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}
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.suggestion {
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display: none;
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position: fixed;
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z-index: 10240;
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left: 0;
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top: 0;
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width: 200px;
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height: auto;
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max-height: 200px;
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min-height: 46px;
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padding: 8px 0;
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border-radius: 4px;
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background: #fff;
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box-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
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.list {
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width: 100%;
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}
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&::after {
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position: absolute;
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left: 30px;
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top: -4px;
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width: 8px;
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height: 8px;
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background: #fff;
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box-shadow: -1px -1px 2px rgba(0, 0, 0, 0.1);
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transform: rotate(45deg);
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content: '';
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}
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&.show {
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display: flex;
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}
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li {
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overflow: hidden;
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width: 100%;
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height: 30px;
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line-height: 30px;
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padding: 0 8px;
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text-overflow: ellipsis;
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white-space: nowrap;
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cursor: pointer;
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&:hover,
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&[focus] {
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background: nth($cp, 1);
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}
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}
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}
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/* --- */
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:host([disabled]) .label {
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background: nth($cp, 1);
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cursor: not-allowed;
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opacity: 0.6;
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}
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:host(:focus-within) {
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box-shadow: 0 0 3px nth($ct, 1);
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}
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:host(:focus-within[readonly]) {
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box-shadow: 0 0 3px nth($co, 1);
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}
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:host([type='textarea']) {
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display: flex;
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height: 80px;
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.label {
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width: 100%;
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height: 100%;
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}
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.icon,
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.suggestion {
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display: none;
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}
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}
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/* 额外样式 */
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:host([round]) {
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border-radius: 21px;
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.prepend {
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border-radius: 21px 0 0 21px;
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}
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.append {
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border-radius: 0 21px 21px 0;
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}
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}
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:host([size='large']) {
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.label {
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height: 42px;
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font-size: 16px;
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}
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.prepend,
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.append {
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height: 40px;
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}
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}
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:host([size='medium']) {
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.label {
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height: 36px;
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}
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.prepend,
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.append {
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height: 34px;
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}
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}
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:host([size='mini']) {
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.label {
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height: 24px;
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font-size: 12px;
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}
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.icon {
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--size: 16px;
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}
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.prepend,
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.append {
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height: 18px;
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}
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}
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</style>
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<script>
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import '../scroll/index'
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import '../icon/index'
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import { nextTick, ebind, bind, unbind } from '../utils'
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const IS_FIREFOX = !!window.sidebar
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const TYPES = ['text', 'textarea', 'password']
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const INPUTS = {
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text: '<input spellcheck="false">',
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textarea: '<textarea spellcheck="false"></textarea>'
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}
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export default class Input {
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props = {
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value: '',
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icon: '',
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type: 'text',
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label: '',
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placeholder: '',
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mvidx: null, //下拉列表光标的索引ID
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autofocus: false,
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readonly: false,
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disabled: false
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}
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constructor() {
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var type = this.getAttribute('type')
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var input = ''
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if (type !== 'textarea') {
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type = 'text'
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}
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input = INPUTS[type]
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/* render */
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this.props.type = type
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this.__OUTER__ = this.root.children[1]
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this.__PREPEND__ = this.__OUTER__.children[0]
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this.__INPUT__ = this.__OUTER__.children[1]
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this.__ICO__ = this.__OUTER__.children[2]
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this.__APPEND__ = this.__OUTER__.children[3]
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this.__LIST__ = this.__OUTER__.children[4]
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}
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get readonly() {
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return this.props.readonly
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}
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set readonly(val) {
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var type = typeof val
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if (val === this.props.readonly) {
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return
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}
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if ((type === 'boolean' && val) || type !== 'boolean') {
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this.props.readonly = true
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this.setAttribute('readonly', '')
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this.__INPUT__.setAttribute('readonly', '')
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} else {
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this.props.readonly = false
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this.removeAttribute('readonly')
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this.__INPUT__.removeAttribute('readonly')
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}
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}
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get disabled() {
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return this.props.disabled
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}
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set disabled(val) {
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var type = typeof val
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if (val === this.props.disabled) {
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return
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}
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if ((type === 'boolean' && val) || type !== 'boolean') {
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this.props.disabled = true
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this.setAttribute('disabled', '')
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this.__INPUT__.setAttribute('disabled', '')
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} else {
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this.props.disabled = false
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this.removeAttribute('disabled')
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this.__INPUT__.removeAttribute('disabled')
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}
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}
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get value() {
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return this.__INPUT__.value
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}
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set value(val) {
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this.__INPUT__.value = val
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}
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get type() {
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return this.__INPUT__.type
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}
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set type(val) {
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if (val !== 'textarea') {
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this.__INPUT__.type = val
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}
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}
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// 移动光标选择下拉选项
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_moveSelect(ev) {
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var { list } = this.props
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if (list && list.length) {
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ev.preventDefault()
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var step = ev.keyCode === 38 ? -1 : 1
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var items = Array.from(
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this.__LIST__.firstElementChild.firstElementChild.children
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)
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if (this.props.mvidx === null) {
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this.props.mvidx = 0
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} else {
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this.props.mvidx += step
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}
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if (this.props.mvidx < 0) {
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this.props.mvidx = 0
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} else if (this.props.mvidx > items.length - 1) {
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this.props.mvidx = items.length - 1
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}
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items.forEach((it, i) => {
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if (i === this.props.mvidx) {
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this.__LIST__.firstElementChild.scrollTop = it.offsetTop - 150
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it.setAttribute('focus', '')
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} else {
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it.removeAttribute('focus')
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}
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})
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}
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}
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// 触发列表选择
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_fetchSelect(idx, ev) {
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var item = this.props.list[idx]
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this.value = item.value
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this.dispatchEvent(
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new CustomEvent('select', {
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detail: item
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})
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)
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this._handleChange(ev)
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this.__LIST__.classList.remove('show')
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this.props.mvidx = null
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}
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mounted() {
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var prepend = this.__PREPEND__.assignedNodes()
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var append = this.__APPEND__.assignedNodes()
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// 相同插槽, 只允许1个
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while (prepend.length > 1) {
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this.removeChild(prepend.pop())
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}
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while (append.length > 1) {
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this.removeChild(append.pop())
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}
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if (prepend.length && this.props.type !== 'textarea') {
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this.__OUTER__.setAttribute('prepend', '')
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}
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if (append.length && this.props.type !== 'textarea') {
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this.__OUTER__.setAttribute('append', '')
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}
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var { type } = this.props
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// 键盘事件
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this._handleSubmit = ebind(this.__INPUT__, 'keydown', ev => {
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if (this.disabled || this.readonly) {
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return
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}
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// up: 38, down: 40
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if (ev.keyCode === 38 || ev.keyCode === 40) {
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// 仅普通文本表单, 密码和多行文本框不做响应
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if (this.type === 'text') {
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return this._moveSelect(ev)
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}
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}
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// 回车触发submit事件
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// textarea 要按Ctrl Or Cmd键, 才会触发
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if (ev.keyCode === 13) {
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// 如果是输入建议存在,则第1次回车的时候, 不触发提交
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if (this.type === 'text' && this.props.mvidx !== null) {
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return this._fetchSelect(this.props.mvidx, ev)
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}
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if (
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type === 'text' ||
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(type === 'textarea' && (ev.ctrlKey || ev.metaKey))
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) {
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this.dispatchEvent(
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new CustomEvent('submit', {
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detail: this.value
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})
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)
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}
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}
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})
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this._handleWheel = ebind(this.__INPUT__, 'wheel')
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// 非textarea, 可做输入建议功能
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if (type === 'text') {
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// 输入状态事件
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this._handleChange = bind(this.__INPUT__, 'input', ev => {
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ev.preventDefault()
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this.dispatchEvent(
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new CustomEvent('fetch-suggest', {
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detail: {
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value: this.value,
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send: list => {
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this.props.list = list
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this._parseSuggestion()
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}
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}
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})
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)
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})
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// 渲染建议列表
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this._parseSuggestion = bind(this.__INPUT__, 'click', ev => {
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var { list } = this.props
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let { x, y, width } = this.getBoundingClientRect()
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if (list && list.length) {
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var html = list
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.map((it, i) => `<li data-idx="${i}">${it.value}</li>`)
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.join('')
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this.__LIST__.firstElementChild.firstElementChild.innerHTML = html
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this.__LIST__.classList.toggle('show', true)
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this.__LIST__.style.cssText = `left:${x}px;top:${y +
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50}px;width:${width}px;`
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} else {
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this.__LIST__.classList.toggle('show', false)
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}
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})
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this._bubbleFn = ebind(this, 'click')
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this._inactiveFn = bind(document, 'click', ev => {
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this.__LIST__.classList.remove('show')
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})
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// 选择建议
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this._handleSelect = bind(this.__LIST__, 'click', ev => {
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if (ev.target.tagName === 'LI') {
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this._fetchSelect(ev.target.dataset.idx, ev)
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this.dispatchEvent(new CustomEvent('input'))
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}
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})
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}
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}
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unmount() {
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unbind(this.__INPUT__, 'wheel', this._handleWheel)
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unbind(this.__INPUT__, 'keydown', this._handleSubmit)
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unbind(this.__INPUT__, 'input', this._handleChange)
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unbind(this, 'click', this._bubbleFn)
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unbind(document, 'click', this._inactiveFn)
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unbind(this.__LIST__, 'click', this._handleSelect)
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}
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watch(name, old, val) {
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if (old === val) {
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return
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}
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switch (name) {
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case 'icon':
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this.props.icon = val
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if (val) {
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this.__ICO__.setAttribute('is', val)
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} else {
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this.removeAttribute('icon')
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this.__ICO__.removeAttribute('is')
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}
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break
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case 'autofocus':
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this.__INPUT__.setAttribute('autofocus', '')
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// 辣鸡火狐, 要触发一下focus, 才能聚焦
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if (IS_FIREFOX) {
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setTimeout(_ => {
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this.__INPUT__.focus()
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}, 10)
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}
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break
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// label和placeholder 功能相同
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case 'label':
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case 'placeholder':
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this.__INPUT__.setAttribute('placeholder', val)
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break
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case 'type':
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if (~TYPES.indexOf(val)) {
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this.type = val
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} else {
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this.type = 'text'
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}
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break
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case 'value':
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this.value = val
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break
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case 'readonly':
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case 'disabled':
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if (val === '') {
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this[name] = true
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}
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break
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}
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}
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}
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</script>
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JavaScript
95.2%
CSS
4.8%