244 lines
8.4 KiB
JavaScript
244 lines
8.4 KiB
JavaScript
import { __decorate } from "tslib";
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import { html } from 'lit';
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import { customElement, property } from 'lit/decorators.js';
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import { createRef, ref } from 'lit/directives/ref.js';
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import cc from 'classcat';
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import { HasSlotController } from '@mdui/shared/controllers/has-slot.js';
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import { watch } from '@mdui/shared/decorators/watch.js';
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import { booleanConverter } from '@mdui/shared/helpers/decorator.js';
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import { nothingTemplate } from '@mdui/shared/helpers/template.js';
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import '@mdui/shared/icons/check.js';
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import '@mdui/shared/icons/clear.js';
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import { ButtonBase } from '../button/button-base.js';
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import '../icon.js';
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import { style } from './style.js';
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/**
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* @summary 纸片组件
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*
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* ```html
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* <mdui-chip>Chip</mdui-chip>
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* ```
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*
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* @event focus - 获得焦点时触发
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* @event blur - 失去焦点时触发
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* @event invalid - 表单字段验证未通过时触发
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* @event change - 选中状态变更时触发
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* @event delete - 点击删除图标时触发
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*
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* @slot - 纸片文本
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* @slot icon - 左侧元素
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* @slot end-icon - 右侧元素
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* @slot selected-icon - 选中状态下的左侧元素
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* @slot delete-icon - 可删除时的右侧删除元素
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*
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* @csspart button - 内部的 `<button>` 或 `<a>` 元素
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* @csspart label - 纸片文本
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* @csspart icon - 左侧图标
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* @csspart end-icon - 右侧图标
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* @csspart selected-icon - 选中状态下的左侧图标
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* @csspart delete-icon - 可删除时的右侧删除图标
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* @csspart loading - 加载中状态的 `<mdui-circular-progress>` 元素
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*
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* @cssprop --shape-corner - 组件的圆角大小。可以指定一个具体的像素值；但更推荐引用[设计令牌](/docs/2/styles/design-tokens#shape-corner)
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*/
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let Chip = class Chip extends ButtonBase {
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constructor() {
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super();
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/**
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* 纸片的形状。可选值包括：
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*
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* * `assist`：用于显示与当前上下文相关的辅助操作，如在点餐页面提供分享、收藏等功能
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* * `filter`：用于对内容进行筛选，如在搜索结果页过滤搜索结果
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* * `input`：用于表示用户输入的信息片段，如在 Gmail 的“收件人”字段中的联系人
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* * `suggestion`：用于提供动态生成的推荐信息，以简化用户操作，如在聊天应用中预测用户可能想发送的信息
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*/
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this.variant = 'assist';
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/**
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* 是否显示阴影
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*/
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this.elevated = false;
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/**
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* 是否可选中
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*/
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this.selectable = false;
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/**
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* 是否已选中
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*/
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this.selected = false;
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/**
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* 是否可删除。为 `true` 时，纸片右侧会显示删除图标
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*/
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this.deletable = false;
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this.rippleRef = createRef();
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this.hasSlotController = new HasSlotController(this, 'icon', 'selected-icon', 'end-icon');
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this.onClick = this.onClick.bind(this);
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this.onKeyDown = this.onKeyDown.bind(this);
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}
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get rippleElement() {
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return this.rippleRef.value;
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}
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onSelectedChange() {
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this.emit('change');
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}
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firstUpdated(changedProperties) {
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super.firstUpdated(changedProperties);
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this.addEventListener('click', this.onClick);
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this.addEventListener('keydown', this.onKeyDown);
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}
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render() {
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const hasIcon = this.icon || this.hasSlotController.test('icon');
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const hasEndIcon = this.endIcon || this.hasSlotController.test('end-icon');
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const hasSelectedIcon = this.selectedIcon ||
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['assist', 'filter'].includes(this.variant) ||
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hasIcon ||
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this.hasSlotController.test('selected-icon');
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const className = cc({
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button: true,
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'has-icon': this.loading ||
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(!this.selected && hasIcon) ||
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(this.selected && hasSelectedIcon),
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'has-end-icon': hasEndIcon,
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});
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return html `<mdui-ripple ${ref(this.rippleRef)} .noRipple="${this.noRipple}"></mdui-ripple>${this.isButton()
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? this.renderButton({
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className,
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part: 'button',
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content: this.renderInner(),
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})
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: this.disabled || this.loading
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? html `<span part="button" class="${className} _a">${this.renderInner()}</span>`
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: this.renderAnchor({
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className,
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part: 'button',
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content: this.renderInner(),
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})}`;
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}
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onClick() {
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if (this.disabled || this.loading) {
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return;
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}
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// 点击时，切换选中状态
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if (this.selectable) {
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this.selected = !this.selected;
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}
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}
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onKeyDown(event) {
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if (this.disabled || this.loading) {
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return;
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}
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// 按下空格键时，切换选中状态
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if (this.selectable && event.key === ' ') {
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event.preventDefault();
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this.selected = !this.selected;
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}
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// 按下 Delete 或 BackSpace 键时，触发 delete 事件
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if (this.deletable && ['Delete', 'Backspace'].includes(event.key)) {
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this.emit('delete');
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}
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}
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/**
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* 点击删除按钮
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*/
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onDelete(event) {
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event.stopPropagation();
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this.emit('delete');
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}
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renderIcon() {
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if (this.loading) {
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return this.renderLoading();
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}
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const icon = () => {
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return this.icon
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? html `<mdui-icon name="${this.icon}" class="i"></mdui-icon>`
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: nothingTemplate;
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};
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const selectedIcon = () => {
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if (this.selectedIcon) {
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return html `<mdui-icon name="${this.selectedIcon}" class="i"></mdui-icon>`;
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}
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if (this.variant === 'assist' || this.variant === 'filter') {
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return html `<mdui-icon-check class="i"></mdui-icon-check>`;
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}
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return icon();
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};
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return !this.selected
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? html `<slot name="icon" part="icon" class="icon">${icon()}</slot>`
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: html `<slot name="selected-icon" part="selected-icon" class="selected-icon">${selectedIcon()}</slot>`;
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}
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renderLabel() {
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return html `<slot part="label" class="label"></slot>`;
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}
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renderEndIcon() {
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return html `<slot name="end-icon" part="end-icon" class="end-icon">${this.endIcon
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? html `<mdui-icon name="${this.endIcon}" class="i"></mdui-icon>`
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: nothingTemplate}</slot>`;
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}
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renderDeleteIcon() {
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if (!this.deletable) {
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return nothingTemplate;
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}
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return html `<slot name="delete-icon" part="delete-icon" class="delete-icon" @click="${this.onDelete}">${this.deleteIcon
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? html `<mdui-icon name="${this.deleteIcon}" class="i"></mdui-icon>`
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: html `<mdui-icon-clear class="i"></mdui-icon-clear>`}</slot>`;
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}
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renderInner() {
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return [
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this.renderIcon(),
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this.renderLabel(),
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this.renderEndIcon(),
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this.renderDeleteIcon(),
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];
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}
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};
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Chip.styles = [ButtonBase.styles, style];
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__decorate([
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property({ reflect: true })
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], Chip.prototype, "variant", void 0);
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__decorate([
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property({
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type: Boolean,
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reflect: true,
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converter: booleanConverter,
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})
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], Chip.prototype, "elevated", void 0);
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__decorate([
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property({
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type: Boolean,
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reflect: true,
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converter: booleanConverter,
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})
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], Chip.prototype, "selectable", void 0);
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__decorate([
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property({
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type: Boolean,
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reflect: true,
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converter: booleanConverter,
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})
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], Chip.prototype, "selected", void 0);
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__decorate([
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property({
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type: Boolean,
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reflect: true,
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converter: booleanConverter,
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})
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], Chip.prototype, "deletable", void 0);
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__decorate([
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property({ reflect: true })
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], Chip.prototype, "icon", void 0);
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__decorate([
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property({ reflect: true, attribute: 'selected-icon' })
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], Chip.prototype, "selectedIcon", void 0);
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__decorate([
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property({ reflect: true, attribute: 'end-icon' })
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], Chip.prototype, "endIcon", void 0);
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__decorate([
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property({ reflect: true, attribute: 'delete-icon' })
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], Chip.prototype, "deleteIcon", void 0);
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__decorate([
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watch('selected', true)
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], Chip.prototype, "onSelectedChange", null);
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Chip = __decorate([
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customElement('mdui-chip')
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], Chip);
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export { Chip };
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