How to use genHandler method in Playwright Internal

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OsWindowReact.js

Source: OsWindowReact.js Github

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1export default function f(React, PropTypes) {
2  let osWindowInstance = null;
3
4  class OsWindowReact extends React.Component {
5    constructor(props) {
6      super(props);
7      this.supportedProps = [
8        'hover',
9        'interactive',
10        'osTheme',
11        'theme',
12        'windowState',
13        'windowTitle',
14      ];
15
16      const genHandler = function genHandler(eventName) {
17        return function inlineEventHandler(e) {
18          const { [eventName]: handlerFn } = this.props;
19          return handlerFn(e);
20        };
21      };
22      this.eventHandlers = {
23        hoverChange: genHandler('onHoverChange').bind(this),
24        interactiveChange: genHandler('onInteractiveChange').bind(this),
25        osThemeChange: genHandler('onOsThemeChange').bind(this),
26        themeChange: genHandler('onThemeChange').bind(this),
27        windowStateChange: genHandler('onWindowStateChange').bind(this),
28        windowTitleChange: genHandler('onWindowTitleChange').bind(this),
29      };
30    }
31
32    componentDidMount() {
33      this.registerEventListeners();
34    }
35
36    componentDidUpdate(prevProps) {
37      this.supportedProps.forEach((prop) => {
38        const { [prop]: prevProp } = prevProps;
39        const { [prop]: curProp } = this.props;
40        if (prevProp !== curProp) {
41          osWindowInstance[prop] = curProp;
42        }
43      });
44    }
45
46    componentWillUnmount() {
47      this.deregisterEventListeners();
48    }
49
50    registerEventListeners() {
51      Object.entries(this.eventHandlers).forEach(
52        ([e, h]) => osWindowInstance.addEventListener(e, h),
53      );
54    }
55
56    deregisterEventListeners() {
57      Object.entries(this.eventHandlers).forEach(
58        ([e, h]) => osWindowInstance.removeEventListener(e, h),
59      );
60    }
61
62    render() {
63      const toPascalCase = (input) => input.replaceAll(
64        new RegExp('([A-Z])', 'g'),
65        (match, p1) => `-${p1.toLowerCase()}`,
66      );
67      const props = {
68        ...Object.fromEntries(
69          this.supportedProps.map(
70            (prop) => {
71              const { [prop]: propValue = null } = this.props;
72              return [toPascalCase(prop), propValue || null];
73            },
74          ),
75        ),
76        ref: (elem) => { osWindowInstance = elem; },
77      };
78
79      const { children } = this.props;
80      return React.createElement(
81        'os-window',
82        props,
83        children,
84      );
85    }
86  }
87
88  const noop = function noop() {};
89  OsWindowReact.defaultProps = {
90    hover: false,
91    interactive: false,
92    osTheme: 'mac',
93    theme: 'light',
94    windowState: 'maximized',
95    windowTitle: '',
96    onHoverChange: noop,
97    onInteractiveChange: noop,
98    onOsThemeChange: noop,
99    onThemeChange: noop,
100    onWindowStateChange: noop,
101    onWindowTitleChange: noop,
102    children: undefined,
103  };
104
105  OsWindowReact.propTypes = {
106    hover: PropTypes.bool,
107    interactive: PropTypes.bool,
108    osTheme: PropTypes.string,
109    theme: PropTypes.string,
110    windowState: PropTypes.string,
111    windowTitle: PropTypes.string,
112    onHoverChange: PropTypes.func,
113    onInteractiveChange: PropTypes.func,
114    onOsThemeChange: PropTypes.func,
115    onThemeChange: PropTypes.func,
116    onWindowStateChange: PropTypes.func,
117    onWindowTitleChange: PropTypes.func,
118    children: PropTypes.node,
119  };
120  return OsWindowReact;
121}
122
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5.连续运行的Generator.js

Source: 5.连续运行的Generator.js Github

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1
2function *genFunc(initValue) {
3    let first = yield new Promise((resolve,reject) =>{
4        debugger;
5        setTimeout(resolve,1000,'first-'+initValue)
6    })
7    let second = yield new Promise((resolve,reject) =>{
8        debugger;
9        setTimeout(resolve,500,'second-'+initValue)
10    })
11    let third = yield new Promise((resolve,reject) =>{
12        debugger;
13        setTimeout(resolve,700,'third-'+initValue)
14    })
15}
16
17let genHandler = genFunc(1)
18//genHandler.next().value 返回一个promise对象
19genHandler.next().value
20    .then( value =>{
21        console.log(value)
22        genHandler.next().value
23            .then(value =>{
24                console.log(value)
25                genHandler.next().value
26                    .then(value => {
27                        console.log(value)
28                    })
29            })
30    })
31
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co.js

Source: co.js Github

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1
2import co from 'co'
3
4function *genFunc(initValue) {
5    let first = yield new Promise((resolve,reject) =>{
6        setTimeout(resolve,1000,'first-'+initValue)
7    })
8    let second = yield new Promise((resolve,reject) =>{
9        setTimeout(resolve,500,'second-'+initValue)
10    })
11    let third = yield new Promise((resolve,reject) =>{
12        setTimeout(resolve,700,'third-'+initValue)
13    })
14}
15
16
17co(genFunc(1)).then(value => {
18    console.log(value)
19})
20//let genHandler = genFunc(1)
21//genHandler.next().value 返回一个promise对象
22/*genHandler.next().value
23    .then( value =>{
24        console.log(value)
25        genHandler.next().value
26            .then(value =>{
27                console.log(value)
28                genHandler.next().value
29                    .then(value => {
30                        console.log(value)
31                    })
32            })
33    })*/
34
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