fix: 本地 patch MDUI 以解决 tabindex = 0 导致的一系列玄学问题
This commit is contained in:
CrescentLeaf
@@ -0,0 +1,395 @@
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import { __decorate } from "tslib";
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import { html } from 'lit';
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import { customElement, property, state } from 'lit/decorators.js';
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import { ifDefined } from 'lit/directives/if-defined.js';
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import { map } from 'lit/directives/map.js';
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import { createRef, ref } from 'lit/directives/ref.js';
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import { when } from 'lit/directives/when.js';
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import { $ } from '@mdui/jq/$.js';
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import '@mdui/jq/methods/find.js';
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import '@mdui/jq/methods/get.js';
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import { isString } from '@mdui/jq/shared/helper.js';
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import { MduiElement } from '@mdui/shared/base/mdui-element.js';
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import { DefinedController } from '@mdui/shared/controllers/defined.js';
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import { FormController, formResets } from '@mdui/shared/controllers/form.js';
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import { defaultValue } from '@mdui/shared/decorators/default-value.js';
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import { watch } from '@mdui/shared/decorators/watch.js';
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import { arraysEqualIgnoreOrder } from '@mdui/shared/helpers/array.js';
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import { booleanConverter } from '@mdui/shared/helpers/decorator.js';
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import { componentStyle } from '@mdui/shared/lit-styles/component-style.js';
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import { segmentedButtonGroupStyle } from './segmented-button-group-style.js';
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/**
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* @summary 分段按钮组件。需配合 `<mdui-segmented-button>` 组件使用
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*
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* ```html
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* <mdui-segmented-button-group>
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* ..<mdui-segmented-button>Day</mdui-segmented-button>
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* ..<mdui-segmented-button>Week</mdui-segmented-button>
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* ..<mdui-segmented-button>Month</mdui-segmented-button>
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* </mdui-segmented-button-group>
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* ```
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*
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* @event change - 选中的值变更时触发
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* @event invalid - 表单字段验证未通过时触发
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*
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* @slot - `<mdui-segmented-button>` 组件
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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 SegmentedButtonGroup = class SegmentedButtonGroup extends MduiElement {
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constructor() {
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super(...arguments);
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/**
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* 是否填满父元素宽度
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*/
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this.fullWidth = false;
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/**
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* 是否为禁用状态
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*/
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this.disabled = false;
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/**
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* 提交表单时，是否必须选中
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*/
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this.required = false;
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/**
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* 提交表单时的名称，将与表单数据一起提交
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*/
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this.name = '';
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/**
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* 当前选中的 `<mdui-segmented-button>` 的值。
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*
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* **Note**：该属性的 HTML 属性始终为字符串，且仅在 `selects="single"` 时可以通过 HTML 属性设置初始值。该属性的 JavaScript 属性值在 `selects="single"` 时为字符串，在 `selects="multiple"` 时为字符串数组。所以，在 `selects="multiple"` 时，如果要修改该值，只能通过修改 JavaScript 属性值实现。
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*/
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this.value = '';
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/**
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* 默认选中的值。在重置表单时，将重置为该默认值。该属性只能通过 JavaScript 属性设置
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*/
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this.defaultValue = '';
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// 因为 segmented-button 的 value 可能会重复，所以在每个 segmented-button 元素上都加了一个唯一的 key 属性，通过 selectedKeys 来记录选中状态的 key
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this.selectedKeys = [];
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/**
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* 是否验证未通过
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*/
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this.invalid = false;
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// 是否为初始状态，初始状态不触发 change 事件
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this.isInitial = true;
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this.inputRef = createRef();
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this.formController = new FormController(this);
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this.definedController = new DefinedController(this, {
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relatedElements: ['mdui-segmented-button'],
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});
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}
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/**
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* 表单验证状态对象，具体参见 [`ValidityState`](https://developer.mozilla.org/zh-CN/docs/Web/API/ValidityState)
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*/
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get validity() {
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return this.inputRef.value.validity;
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}
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/**
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* 如果表单验证未通过，此属性将包含提示信息。如果验证通过，此属性将为空字符串
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*/
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get validationMessage() {
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return this.inputRef.value.validationMessage;
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}
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// 为了使 <mdui-segmented-button> 可以不是该组件的直接子元素，这里不用 @queryAssignedElements()
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get items() {
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return $(this)
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.find('mdui-segmented-button')
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.get();
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}
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// 所有的子项元素（不包含已禁用的）
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get itemsEnabled() {
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return $(this)
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.find('mdui-segmented-button:not([disabled])')
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.get();
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}
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// 是否为单选
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get isSingle() {
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return this.selects === 'single';
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}
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// 是否为多选
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get isMultiple() {
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return this.selects === 'multiple';
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}
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// 是否可选择
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get isSelectable() {
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return this.isSingle || this.isMultiple;
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}
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async onSelectsChange() {
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if (!this.isSelectable) {
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// 不可选中，清空选中值
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this.setSelectedKeys([]);
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}
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else if (this.isSingle) {
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// 单选，只保留第一个选中的值
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this.setSelectedKeys(this.selectedKeys.slice(0, 1));
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}
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await this.onSelectedKeysChange();
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}
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async onSelectedKeysChange() {
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await this.definedController.whenDefined();
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// 根据 selectedKeys 读取出对应 segmented-button 的 value
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const values = this.itemsEnabled
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.filter((item) => this.selectedKeys.includes(item.key))
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.map((item) => item.value);
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const value = this.isMultiple ? values : values[0] || '';
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this.setValue(value);
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if (!this.isInitial) {
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this.emit('change');
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}
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}
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async onValueChange() {
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this.isInitial = !this.hasUpdated;
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await this.definedController.whenDefined();
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// 根据 value 找出对应的 segmented-button，并把这些元素的 key 赋值给 selectedKeys
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if (!this.isSelectable) {
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this.updateItems();
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return;
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}
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const values = (this.isSingle
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? [this.value]
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: // 多选时，传入的值可能是字符串（通过 attribute 属性设置）；或字符串数组（通过 property 属性设置）
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isString(this.value)
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? [this.value]
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: this.value).filter((i) => i);
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if (!values.length) {
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this.setSelectedKeys([]);
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}
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else if (this.isSingle) {
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const firstItem = this.itemsEnabled.find((item) => item.value === values[0]);
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this.setSelectedKeys(firstItem ? [firstItem.key] : []);
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}
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else if (this.isMultiple) {
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this.setSelectedKeys(this.itemsEnabled
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.filter((item) => values.includes(item.value))
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.map((item) => item.key));
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}
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this.updateItems();
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// reset 引起的值变更，不执行验证；直接修改值引起的变更，需要进行验证
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if (!this.isInitial) {
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const form = this.formController.getForm();
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if (form && formResets.get(form)?.has(this)) {
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this.invalid = false;
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formResets.get(form).delete(this);
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}
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else {
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this.invalid = !this.inputRef.value.checkValidity();
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}
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}
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}
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async onInvalidChange() {
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await this.definedController.whenDefined();
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this.updateItems();
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}
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connectedCallback() {
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super.connectedCallback();
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this.value =
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this.isMultiple && isString(this.value)
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? this.value
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? [this.value]
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: []
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: this.value;
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this.defaultValue = this.selects === 'multiple' ? [] : '';
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}
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/**
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* 检查表单字段是否通过验证。如果未通过，返回 `false` 并触发 `invalid` 事件；如果通过，返回 `true`
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*/
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checkValidity() {
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const valid = this.inputRef.value.checkValidity();
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if (!valid) {
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this.emit('invalid', {
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bubbles: false,
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cancelable: true,
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composed: false,
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});
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}
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return valid;
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}
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/**
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* 检查表单字段是否通过验证。如果未通过，返回 `false` 并触发 `invalid` 事件；如果通过，返回 `true`。
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*
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* 如果验证未通过，还会在组件上显示验证失败的提示。
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*/
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reportValidity() {
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this.invalid = !this.inputRef.value.reportValidity();
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if (this.invalid) {
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const eventProceeded = this.emit('invalid', {
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bubbles: false,
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cancelable: true,
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composed: false,
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});
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if (!eventProceeded) {
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// 调用了 preventDefault() 时，隐藏默认的表单错误提示
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this.inputRef.value.blur();
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this.inputRef.value.focus();
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}
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}
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return !this.invalid;
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}
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/**
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* 设置自定义的错误提示文本。只要这个文本不为空，就表示字段未通过验证
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*
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* @param message 自定义的错误提示文本
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*/
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setCustomValidity(message) {
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this.inputRef.value.setCustomValidity(message);
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this.invalid = !this.inputRef.value.checkValidity();
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}
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render() {
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return html `${when(this.isSelectable && this.isSingle, () => html `<input ${ref(this.inputRef)} type="radio" name="${ifDefined(this.name)}" value="1" .disabled="${this.disabled}" .required="${this.required}" .checked="${!!this.value}" tabindex="-1" @keydown="${this.onInputKeyDown}">`)}${when(this.isSelectable && this.isMultiple, () => html `<select ${ref(this.inputRef)} name="${ifDefined(this.name)}" .disabled="${this.disabled}" .required="${this.required}" multiple="multiple" tabindex="-1" @keydown="${this.onInputKeyDown}">${map(this.value, (value) => html `<option selected="selected" value="${value}"></option>`)}</select>`)}<slot @slotchange="${this.onSlotChange}" @click="${this.onClick}"></slot>`;
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}
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// 切换一个元素的选中状态
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selectOne(item) {
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if (this.isMultiple) {
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// 直接修改 this.selectedKeys 无法被 watch 监听到，需要先克隆一份 this.selectedKeys
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const selectedKeys = [...this.selectedKeys];
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if (selectedKeys.includes(item.key)) {
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selectedKeys.splice(selectedKeys.indexOf(item.key), 1);
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}
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else {
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selectedKeys.push(item.key);
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}
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this.setSelectedKeys(selectedKeys);
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}
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if (this.isSingle) {
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if (this.selectedKeys.includes(item.key)) {
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this.setSelectedKeys([]);
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}
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else {
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this.setSelectedKeys([item.key]);
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}
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}
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this.isInitial = false;
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this.updateItems();
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}
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async onClick(event) {
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// event.button 为 0 时，为鼠标左键点击。忽略鼠标中间和右键
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if (event.button) {
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return;
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}
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await this.definedController.whenDefined();
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const target = event.target;
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const item = target.closest('mdui-segmented-button');
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if (!item || item.disabled) {
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return;
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}
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if (this.isSelectable && item.value) {
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this.selectOne(item);
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}
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}
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/**
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* 在隐藏的 `<input>` 或 `<select>` 上按下按键时，切换选中状态
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* 通常为验证不通过时，默认聚焦到 `<input>` 或 `<select>` 上，此时按下按键，切换第一个元素的选中状态
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*/
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async onInputKeyDown(event) {
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if (!['Enter', ' '].includes(event.key)) {
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return;
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}
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event.preventDefault();
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await this.definedController.whenDefined();
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if (this.isSingle) {
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const input = event.target;
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input.checked = !input.checked;
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this.selectOne(this.itemsEnabled[0]);
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this.itemsEnabled[0].focus();
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}
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if (this.isMultiple) {
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this.selectOne(this.itemsEnabled[0]);
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this.itemsEnabled[0].focus();
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}
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}
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async onSlotChange() {
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await this.definedController.whenDefined();
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this.updateItems(true);
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}
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setSelectedKeys(selectedKeys) {
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if (!arraysEqualIgnoreOrder(this.selectedKeys, selectedKeys)) {
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this.selectedKeys = selectedKeys;
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}
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}
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setValue(value) {
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if (this.isSingle) {
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this.value = value;
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}
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else if (!arraysEqualIgnoreOrder(this.value, value)) {
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this.value = value;
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}
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}
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updateItems(slotChange = false) {
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const items = this.items;
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items.forEach((item, index) => {
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item.invalid = this.invalid;
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item.groupDisabled = this.disabled;
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item.selected = this.selectedKeys.includes(item.key);
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if (slotChange) {
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item.classList.toggle('mdui-segmented-button-first', index === 0);
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item.classList.toggle('mdui-segmented-button-last', index === items.length - 1);
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}
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});
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}
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};
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SegmentedButtonGroup.styles = [
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componentStyle,
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segmentedButtonGroupStyle,
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];
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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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attribute: 'full-width',
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})
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], SegmentedButtonGroup.prototype, "fullWidth", void 0);
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__decorate([
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property({ reflect: true })
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// eslint-disable-next-line prettier/prettier
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], SegmentedButtonGroup.prototype, "selects", 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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], SegmentedButtonGroup.prototype, "disabled", 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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], SegmentedButtonGroup.prototype, "required", void 0);
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__decorate([
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property({ reflect: true })
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], SegmentedButtonGroup.prototype, "form", void 0);
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__decorate([
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property({ reflect: true })
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], SegmentedButtonGroup.prototype, "name", void 0);
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__decorate([
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property()
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], SegmentedButtonGroup.prototype, "value", void 0);
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__decorate([
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defaultValue()
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], SegmentedButtonGroup.prototype, "defaultValue", void 0);
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__decorate([
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state()
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], SegmentedButtonGroup.prototype, "selectedKeys", void 0);
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__decorate([
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state()
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], SegmentedButtonGroup.prototype, "invalid", void 0);
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__decorate([
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watch('selects', true)
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], SegmentedButtonGroup.prototype, "onSelectsChange", null);
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__decorate([
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watch('selectedKeys', true)
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], SegmentedButtonGroup.prototype, "onSelectedKeysChange", null);
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__decorate([
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watch('value')
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], SegmentedButtonGroup.prototype, "onValueChange", null);
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__decorate([
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watch('invalid', true),
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watch('disabled')
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], SegmentedButtonGroup.prototype, "onInvalidChange", null);
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SegmentedButtonGroup = __decorate([
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customElement('mdui-segmented-button-group')
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], SegmentedButtonGroup);
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export { SegmentedButtonGroup };
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