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The Popover is a UI component that shows notifications within a box with an arrow pointing to a specified UI element. In this demo, the Popover appears when you pause on the «details» label or click the «more» link.

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import React from 'react'; import { Popover } from 'devextreme-react/popover'; const animationConfig = { show: { type: 'pop', from: { scale: 0 }, to: { scale: 1 } }, hide: { type: 'fade', from: 1, to: 0 } }; class App extends React.Component { constructor(props) { super(props); this.state = { defaultVisible: false, withTitleVisible: false, withAnimationOptionsVisible: false, withShadingOptionsVisible: false }; this.toggleDefault = this.toggleDefault.bind(this); this.toggleWithTitle = this.toggleWithTitle.bind(this); this.toggleWithAnimationOptions = this.toggleWithAnimationOptions.bind(this); this.showWithShadingOptions = this.showWithShadingOptions.bind(this); this.hideWithShadingOptions = this.hideWithShadingOptions.bind(this); } render() { return ( <div className="dx-fieldset form"> <div className="dx-field"> <div className="dx-field-label">Default mode</div> <div className="dx-field-value-static"> <p> <span id="subject1">Google AdWords Strategy </span> (<a id="link1" onMouseEnter={this.toggleDefault} onMouseLeave={this.toggleDefault} >details</a>) </p> <Popover target="#link1" position="top" width={300} visible={this.state.defaultVisible} > Make final decision on whether we are going to increase our Google AdWord spend based on our 2013 marketing plan. </Popover> </div> </div> <div className="dx-field"> <div className="dx-field-label">With title</div> <div className="dx-field-value-static"> <p> <span id="subject2">Rollout of New Website and Marketing Brochures </span> (<a id="link2" onMouseEnter={this.toggleWithTitle} onMouseLeave={this.toggleWithTitle} >details</a>) </p> <Popover target="#link2" position="top" width={300} showTitle={true} title="Details:" visible={this.state.withTitleVisible} > The designs for new brochures and website have been approved. Launch date is set for Feb 28. </Popover> </div> </div> <div className="dx-field"> <div className="dx-field-label">With animation</div> <div className="dx-field-value-static"> <p> <span id="subject3">Create 2012 Sales Report </span> (<a id="link3" onMouseEnter={this.toggleWithAnimationOptions} onMouseLeave={this.toggleWithAnimationOptions} >details</a>) </p> <Popover target="#link3" position="top" width={300} visible={this.state.withAnimationOptionsVisible} animation={animationConfig} > 2012 Sales Report has to be completed so we can determine if major changes are required to sales strategy. </Popover> </div> </div> <div className="dx-field"> <div className="dx-field-label">With overlay</div> <div className="dx-field-value-static"> <p> <span id="subject4">Website Re-Design Plan </span> (<a id="link4" onClick={this.showWithShadingOptions} >more</a>) </p> <Popover target="#link4" position="top" width={300} visible={this.state.withShadingOptionsVisible} onHiding={this.hideWithShadingOptions} shading={true} shadingColor="rgba(0, 0, 0, 0.5)" > The changes in our brochure designs for 2013 require us to update key areas of our website. </Popover> </div> </div> </div> ); } toggleDefault() { this.setState({ defaultVisible: !this.state.defaultVisible }); } toggleWithTitle() { this.setState({ withTitleVisible: !this.state.withTitleVisible }); } toggleWithAnimationOptions() { this.setState({ withAnimationOptionsVisible: !this.state.withAnimationOptionsVisible }); } showWithShadingOptions() { this.setState({ withShadingOptionsVisible: true }); } hideWithShadingOptions() { this.setState({ withShadingOptionsVisible: false }); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="" /> <link rel="stylesheet" type="text/css" href="" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src=""></script> <script src=""></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
.form a { cursor: pointer; white-space: nowrap; border-bottom: 1px dashed; text-decoration: none; } .form p { margin: 0; } #link4 { border-bottom-style: solid; }
System.config({ transpiler: 'plugin-babel', meta: { 'devextreme/localization.js': { "esModule": true }, }, paths: { 'npm:': '' }, defaultExtension: 'js', map: { 'react': 'npm:react@16.14.0/umd/react.development.js', 'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js', 'prop-types': 'npm:prop-types@15.7.2/prop-types.js', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.26.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@20.2.7', 'devextreme-react': 'npm:devextreme-react@20.2.7', 'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.0.23/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@2.0.29/dist/dx-gantt.js', 'preact': 'npm:preact@10.5.13/dist/preact.js', 'preact/hooks': 'npm:preact@10.5.13/hooks/dist/hooks.js', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });