304 lines
8.3 KiB
HTML
304 lines
8.3 KiB
HTML
<div>
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<h1>dropdown</h1>
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<hr />
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<p>
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创建一个统一样式的下拉输入、选择框元素,或者解析转换页面上的 select 标签为该元素。
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</p>
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<h2>constructor</h2>
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<code>new(options?: DropdownOptions): Dropdown</code>
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<h3>options?: DropdownOptions</h3>
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<p>
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下拉输入、选择框的初始参数,结构为
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<pre>interface DropdownOptions {
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textkey?: string;
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valuekey?: string;
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htmlkey?: string;
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maxlength?: Number;
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multiselect?: boolean;
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selected?: string;
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selectedlist?: Array<DropdownItem | any>;
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disabled?: boolean;
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input?: boolean;
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search?: boolean;
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searchkeys?: Array<string>;
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searchplaceholder?: string;
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tabindex?: Number;
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placeholder?: string;
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slidefixed?: boolean;
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parent?: HTMLElement;
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}</pre>
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</p>
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<h4>textkey?: string</h4>
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<p>
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数据源中用以显示的属性,默认为 <code>text</code>
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</p>
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<h4>valuekey?: string</h4>
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<p>
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数据源中作为值的属性,默认为 <code>value</code>
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</p>
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<h4>htmlkey?: string</h4>
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<p>
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数据源中用来以 html 方式呈现的属性,默认为 <code>html</code>
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</p>
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<h4>maxlength?: Number</h4>
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<p>
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作为输入类型时的最大允许字符数,默认为 500
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</p>
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<h4>multiselect?: boolean</h4>
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<p>
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是否允许多选,仅在选择类型下有效
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</p>
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<h4>selected?: string</h4>
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<p>
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默认选中的项目的值
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</p>
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<h4>selectedlist?: Array<DropdownItem | any></h4>
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<p>
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多选时默认选中的项目的值的列表
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</p>
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<h4>disabled?: boolean</h4>
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<p>
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初始化时下拉框是否禁用
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</p>
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<h4>input?: boolean</h4>
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<p>
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是否为输入类型
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</p>
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<h4>search?: boolean</h4>
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<p>
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是否允许搜索
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</p>
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<h4>searchkeys?: Array<string></h4>
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<p>
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搜索时搜索的数据源属性的列表,默认为 <code>[valuekey]</code>
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</p>
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<h4>searchplaceholder?: string</h4>
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<p>
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搜索输入框的占位字符串
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</p>
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<h4>tabindex?: Number</h4>
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<p>
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下拉框的焦点顺序
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</p>
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<h4>placeholder?: string</h4>
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<p>
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作为输入类型时,输入框的占位字符串
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</p>
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<h4>slidefixed?: boolean</h4>
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<p>
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下拉方向是否固定为下
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</p>
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<h4>parent?: HTMLElement</h4>
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<p>
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下拉列表呈现的父容器,默认为 <code>document.body</code>
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</p>
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<h2>Dropdown.resolve</h2>
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<code>static resolve(dom?: HTMLElement): HTMLElement</code>
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<h3>dom?: HTMLElement</h3>
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<p>
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将把此 HTML 元素,为 null 则把 document.body 下的所有 <code>select</code> 元素解析为统一样式的下拉框
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</p>
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<hr />
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<h2>sourceFilter</h2>
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<code>sourceFilter: () => Array<DropdownItem | any></code>
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<p>
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数据源代理,返回用以呈现在下拉列表中的数据源
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</p>
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<h2>onselected</h2>
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<code>onselected: (item: DropdownItem | any) => void</code>
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<h3>item: DropdownItem | any</h3>
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<p>
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选中项发生改变时触发该事件,参数为选中的项
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</p>
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<h2>onselectedlist</h2>
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<code>onselectedlist: (list: Array<DropdownItem | any>) => void</code>
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<h3>list: Array<DropdownItem | any></h3>
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<p>
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多选时选中列表发生改变时触发该事件,参数为选中的列表
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</p>
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<h2>onexpanded</h2>
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<code>onexpanded: () => void</code>
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<p>
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下拉列表展开时触发该事件,一般用来异步获取服务器数据,填充至数据源
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</p>
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<hr />
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<h2>disabled</h2>
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<code>property disabled(): boolean</code>
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<p>
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获取或设置下拉框是否禁用
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</p>
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<h2>source</h2>
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<code>property source(): Array<DropdownItem | any></code>
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<p>
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获取或设置下拉框数据源
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</p>
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<h2>multiselect</h2>
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<code>readonly multiselect: boolean</code>
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<p>
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获取下拉框是否支持多选
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</p>
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<h2>selected</h2>
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<code>readonly selected: DropdownItem | any</code>
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<p>
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获取下拉框当前选中项
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</p>
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<h2>selectedlist</h2>
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<code>readonly selectedlist: Array<DropdownItem | any></code>
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<p>
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获取下拉框当前选中的列表
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</p>
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<hr />
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<h2>create</h2>
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<code>create(): HTMLElement</code>
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<p>
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创建下拉列表,返回一个 HTML 元素
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</p>
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<h2>select</h2>
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<code>select(selected: string, silence?: boolean): void</code>
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<h3>selected: string</h3>
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<p>
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修改下拉框的选中项为参数值对应的项
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</p>
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<h3>silence?: boolean</h3>
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<p>
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是否静默修改,为 true 时不触发 <code>onselected</code> 事件
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</p>
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<h2>selectlist</h2>
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<code>selectlist(selectedlist: Array<string>, silence?: boolean): void</code>
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<h3>selectedlist: Array<string></h3>
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<p>
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修改下拉框的选中列表为参数值列表对应的项的列表
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</p>
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<h3>silence?: boolean</h3>
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<p>
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是否静默修改,为 true 时不触发 <code>onselectedlist</code> 事件
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</p>
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<hr />
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<h2>示例</h2>
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<pre><div id="dropdown-sample">
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<select>
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<option value="cs1">Case 1</option>
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<option value="cs2" selected>Case 2</option>
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<option value="cs3">Case 3</option>
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</select>
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</div>
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<script type="text/javascript">
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const Dropdown = window["lib-ui"].Dropdown;
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const sample = document.querySelector('#dropdown-sample');
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// 解析 select 元素
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Dropdown.resolve(sample);
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// 创建简易输入类型下拉框
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let drop = new Dropdown({
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input: true,
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// selected: 'standby',
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placeholder: 'asset status',
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slidefixed: true
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});
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drop.source = ['off', 'running', 'standby', 'broken']
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.map(it => { return { value: it, text: it } });
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sample.appendChild(drop.create());
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// 创建自定义显示元素的下拉框
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drop = new Dropdown({
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selected: '#ff0',
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search: true,
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// multiselect: true
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});
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drop.source = [
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{ value: '#fff', text: 'White' },
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{ value: '#f00', text: 'Red' },
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{ value: '#0f0', text: 'Green' },
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{ value: '#00f', text: 'Blue' },
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{ value: '#ff0', text: 'Yellow' },
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{ value: '#0ff', text: 'Cyan' },
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{ value: '#f0f', text: 'Magenta' },
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];
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drop.source.forEach(it => {
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const span = document.createElement('span');
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span.className = 'ui-drop-item';
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span.style.setProperty('--color', it.value);
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span.innerText = it.text;
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it.html = span;
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});
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sample.appendChild(drop.create());
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</script></pre>
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<div id="dropdown-sample">
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<select>
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<option value="cs1">Case 1</option>
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<option value="cs2" selected>Case 2</option>
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<option value="cs3">Case 3</option>
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</select>
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</div>
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<div style="height: 80px"></div>
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<script type="text/javascript">
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!function () {
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const Dropdown = window["lib-ui"].Dropdown;
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const sample = document.querySelector('#dropdown-sample');
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Dropdown.resolve(sample);
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let drop = new Dropdown({
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input: true,
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// selected: 'standby',
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placeholder: 'asset status',
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slidefixed: true
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});
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drop.source = ['off', 'running', 'standby', 'broken']
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.map(it => { return { value: it, text: it } });
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sample.appendChild(drop.create());
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drop = new Dropdown({
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selected: '#ff0',
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search: true,
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// multiselect: true
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});
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drop.source = [
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{ value: '#fff', text: 'White' },
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{ value: '#f00', text: 'Red' },
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{ value: '#0f0', text: 'Green' },
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{ value: '#00f', text: 'Blue' },
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{ value: '#ff0', text: 'Yellow' },
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{ value: '#0ff', text: 'Cyan' },
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{ value: '#f0f', text: 'Magenta' },
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];
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drop.source.forEach(it => {
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const span = document.createElement('span');
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span.className = 'ui-drop-item';
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span.style.setProperty('--color', it.value);
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span.innerText = it.text;
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it.html = span;
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});
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sample.appendChild(drop.create());
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}();
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</script>
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<style type="text/css">
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#dropdown-sample {
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display: flex;
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}
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#dropdown-sample>.ui-drop-wrapper {
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width: 200px;
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margin-right: 10px;
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}
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.ui-drop-item {
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font-size: .75rem !important;
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padding: 0 0 0 22px !important;
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position: relative;
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}
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.ui-drop-item::before {
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content: '';
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position: absolute;
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width: 12px;
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height: 12px;
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border-radius: 6px;
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top: calc(50% - 6px);
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left: 6px;
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background-color: var(--color);
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}
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</style>
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</div> |