ДЗ 24 декабря Gallery

React/HW_React_4/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

React/HW_React_4/README.md

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+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

React/HW_React_4/package.json

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+{
+  "name": "secondproj",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.1",
+    "@testing-library/react": "^12.1.2",
+    "@testing-library/user-event": "^13.5.0",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "react-scripts": "5.0.0",
+    "web-vitals": "^2.1.3"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

React/HW_React_4/public/index.html

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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

React/HW_React_4/public/manifest.json

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+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

React/HW_React_4/public/robots.txt

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+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

React/HW_React_4/src/App.js

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+import logoDefault from './logo.svg';
+import {useEffect, useState, useRef} from "react";
+import React from 'react';
+import './App.scss';
+import pic1 from './pics/h1.jpg';
+import pic2 from './pics/h2.jpg';
+import pic3 from './pics/h3.jpg';
+import pic4 from './pics/h4.jpg';
+
+
+const countries = {
+    "AF": "Afghanistan",
+    "AX": "Aland Islands",
+    "AL": "Albania",
+    "DZ": "Algeria",
+    "AS": "American Samoa",
+    "AD": "Andorra",
+    "AO": "Angola",
+    "AI": "Anguilla",
+    "AQ": "Antarctica",
+    "AG": "Antigua And Barbuda",
+    "AR": "Argentina",
+    "AM": "Armenia",
+    "AW": "Aruba",
+    "AU": "Australia",
+    "AT": "Austria",
+    "AZ": "Azerbaijan",
+    "BS": "Bahamas",
+    "BH": "Bahrain",
+    "BD": "Bangladesh",
+    "BB": "Barbados",
+    "BY": "Belarus",
+    "BE": "Belgium",
+    "BZ": "Belize",
+    "BJ": "Benin",
+    "BM": "Bermuda",
+    "BT": "Bhutan",
+    "BO": "Bolivia",
+    "BA": "Bosnia And Herzegovina",
+    "BW": "Botswana",
+    "BV": "Bouvet Island",
+    "BR": "Brazil",
+    "IO": "British Indian Ocean Territory",
+    "BN": "Brunei Darussalam",
+    "BG": "Bulgaria",
+    "BF": "Burkina Faso",
+    "BI": "Burundi",
+    "KH": "Cambodia",
+    "CM": "Cameroon",
+    "CA": "Canada",
+    "CV": "Cape Verde",
+    "KY": "Cayman Islands",
+    "CF": "Central African Republic",
+    "TD": "Chad",
+    "CL": "Chile",
+    "CN": "China",
+    "CX": "Christmas Island",
+    "CC": "Cocos (Keeling) Islands",
+    "CO": "Colombia",
+    "KM": "Comoros",
+    "CG": "Congo",
+    "CD": "Congo, Democratic Republic",
+    "CK": "Cook Islands",
+    "CR": "Costa Rica",
+    "CI": "Cote D\"Ivoire",
+    "HR": "Croatia",
+    "CU": "Cuba",
+    "CY": "Cyprus",
+    "CZ": "Czech Republic",
+    "DK": "Denmark",
+    "DJ": "Djibouti",
+    "DM": "Dominica",
+    "DO": "Dominican Republic",
+    "EC": "Ecuador",
+    "EG": "Egypt",
+    "SV": "El Salvador",
+    "GQ": "Equatorial Guinea",
+    "ER": "Eritrea",
+    "EE": "Estonia",
+    "ET": "Ethiopia",
+    "FK": "Falkland Islands (Malvinas)",
+    "FO": "Faroe Islands",
+    "FJ": "Fiji",
+    "FI": "Finland",
+    "FR": "France",
+    "GF": "French Guiana",
+    "PF": "French Polynesia",
+    "TF": "French Southern Territories",
+    "GA": "Gabon",
+    "GM": "Gambia",
+    "GE": "Georgia",
+    "DE": "Germany",
+    "GH": "Ghana",
+    "GI": "Gibraltar",
+    "GR": "Greece",
+    "GL": "Greenland",
+    "GD": "Grenada",
+    "GP": "Guadeloupe",
+    "GU": "Guam",
+    "GT": "Guatemala",
+    "GG": "Guernsey",
+    "GN": "Guinea",
+    "GW": "Guinea-Bissau",
+    "GY": "Guyana",
+    "HT": "Haiti",
+    "HM": "Heard Island & Mcdonald Islands",
+    "VA": "Holy See (Vatican City State)",
+    "HN": "Honduras",
+    "HK": "Hong Kong",
+    "HU": "Hungary",
+    "IS": "Iceland",
+    "IN": "India",
+    "ID": "Indonesia",
+    "IR": "Iran, Islamic Republic Of",
+    "IQ": "Iraq",
+    "IE": "Ireland",
+    "IM": "Isle Of Man",
+    "IL": "Israel",
+    "IT": "Italy",
+    "JM": "Jamaica",
+    "JP": "Japan",
+    "JE": "Jersey",
+    "JO": "Jordan",
+    "KZ": "Kazakhstan",
+    "KE": "Kenya",
+    "KI": "Kiribati",
+    "KR": "Korea",
+    "KP": "North Korea",
+    "KW": "Kuwait",
+    "KG": "Kyrgyzstan",
+    "LA": "Lao People\"s Democratic Republic",
+    "LV": "Latvia",
+    "LB": "Lebanon",
+    "LS": "Lesotho",
+    "LR": "Liberia",
+    "LY": "Libyan Arab Jamahiriya",
+    "LI": "Liechtenstein",
+    "LT": "Lithuania",
+    "LU": "Luxembourg",
+    "MO": "Macao",
+    "MK": "Macedonia",
+    "MG": "Madagascar",
+    "MW": "Malawi",
+    "MY": "Malaysia",
+    "MV": "Maldives",
+    "ML": "Mali",
+    "MT": "Malta",
+    "MH": "Marshall Islands",
+    "MQ": "Martinique",
+    "MR": "Mauritania",
+    "MU": "Mauritius",
+    "YT": "Mayotte",
+    "MX": "Mexico",
+    "FM": "Micronesia, Federated States Of",
+    "MD": "Moldova",
+    "MC": "Monaco",
+    "MN": "Mongolia",
+    "ME": "Montenegro",
+    "MS": "Montserrat",
+    "MA": "Morocco",
+    "MZ": "Mozambique",
+    "MM": "Myanmar",
+    "NA": "Namibia",
+    "NR": "Nauru",
+    "NP": "Nepal",
+    "NL": "Netherlands",
+    "AN": "Netherlands Antilles",
+    "NC": "New Caledonia",
+    "NZ": "New Zealand",
+    "NI": "Nicaragua",
+    "NE": "Niger",
+    "NG": "Nigeria",
+    "NU": "Niue",
+    "NF": "Norfolk Island",
+    "MP": "Northern Mariana Islands",
+    "NO": "Norway",
+    "OM": "Oman",
+    "PK": "Pakistan",
+    "PW": "Palau",
+    "PS": "Palestinian Territory, Occupied",
+    "PA": "Panama",
+    "PG": "Papua New Guinea",
+    "PY": "Paraguay",
+    "PE": "Peru",
+    "PH": "Philippines",
+    "PN": "Pitcairn",
+    "PL": "Poland",
+    "PT": "Portugal",
+    "PR": "Puerto Rico",
+    "QA": "Qatar",
+    "RE": "Reunion",
+    "RO": "Romania",
+    "RU": "Russian Federation",
+    "RW": "Rwanda",
+    "BL": "Saint Barthelemy",
+    "SH": "Saint Helena",
+    "KN": "Saint Kitts And Nevis",
+    "LC": "Saint Lucia",
+    "MF": "Saint Martin",
+    "PM": "Saint Pierre And Miquelon",
+    "VC": "Saint Vincent And Grenadines",
+    "WS": "Samoa",
+    "SM": "San Marino",
+    "ST": "Sao Tome And Principe",
+    "SA": "Saudi Arabia",
+    "SN": "Senegal",
+    "RS": "Serbia",
+    "SC": "Seychelles",
+    "SL": "Sierra Leone",
+    "SG": "Singapore",
+    "SK": "Slovakia",
+    "SI": "Slovenia",
+    "SB": "Solomon Islands",
+    "SO": "Somalia",
+    "ZA": "South Africa",
+    "GS": "South Georgia And Sandwich Isl.",
+    "ES": "Spain",
+    "LK": "Sri Lanka",
+    "SD": "Sudan",
+    "SR": "Suriname",
+    "SJ": "Svalbard And Jan Mayen",
+    "SZ": "Swaziland",
+    "SE": "Sweden",
+    "CH": "Switzerland",
+    "SY": "Syrian Arab Republic",
+    "TW": "Taiwan",
+    "TJ": "Tajikistan",
+    "TZ": "Tanzania",
+    "TH": "Thailand",
+    "TL": "Timor-Leste",
+    "TG": "Togo",
+    "TK": "Tokelau",
+    "TO": "Tonga",
+    "TT": "Trinidad And Tobago",
+    "TN": "Tunisia",
+    "TR": "Turkey",
+    "TM": "Turkmenistan",
+    "TC": "Turks And Caicos Islands",
+    "TV": "Tuvalu",
+    "UG": "Uganda",
+    "UA": "Ukraine",
+    "AE": "United Arab Emirates",
+    "GB": "United Kingdom",
+    "US": "United States",
+    "UM": "United States Outlying Islands",
+    "UY": "Uruguay",
+    "UZ": "Uzbekistan",
+    "VU": "Vanuatu",
+    "VE": "Venezuela",
+    "VN": "Vietnam",
+    "VG": "Virgin Islands, British",
+    "VI": "Virgin Islands, U.S.",
+    "WF": "Wallis And Futuna",
+    "EH": "Western Sahara",
+    "YE": "Yemen",
+    "ZM": "Zambia",
+    "ZW": "Zimbabwe"
+}
+const MySelect = ({option=countries, value='ZW', onChange}) => {
+	//тут отдать value и onChange. 
+        //При изменении во внешний onChange надо передавать 
+          	//выбранный ключ из обьекта options 
+        //смочь нарисовать все option c value и текстом 
+    return (
+    	
+        <select value={value} onChange={value => onChange(value.target.value)}>
+            {Object.entries(option).map(item => <option value={item[0]}>{item[1]}</option>)}
+        </select>
+    )
+}
+
+
+	const Dots = ({active, count, onClick}) => {
+	  	//рисует count точечек
+	     	//другим стилем визуально выделяет точечку с номером active
+	      	//по клику на точечку запускает onClick и отдает в него номер текущей выбранной 
+	      	//у компонента State нет (компонент управляемый, рулится из Gallery)
+	    let arr = Array(count).fill(0)
+	    return (
+	        <div className='Dots'>
+	            {arr.map((value, index) =>
+	                <div className={`DotsFon ${index === active && 'DotsFon--active'}`} 
+	                				onClick={() => onClick(index)}/>
+	            )}
+	        </div>
+	    )
+	}
+
+    const Gallery = ({images=[pic1, pic2, pic3, pic4]})=>{
+	    //придумать состояние и причины для его изменения
+	    //в зависимости от состояния картинка в img должна меняться
+	    //прикрутить точечки для иллюстрации какая картинка сейчас выбрана
+	    //им так же сделать onclick для мгновенного перехода на любую картинку
+	  		//тОчечки:
+	        //отдать нужные настройки: count, active, onClick
+	    let [num, setNum] = useState(0);
+	    return(
+		    <div className='Gallery'>
+	          	<img src={images[num]}/>
+	          	<Dots active={num} count={images.length} onClick={e => setNum(e)}/>
+	          	<button onClick={()=>setNum(num <= 0 ? images.length-1 : num - 1)}>предыдущая</button>
+	          	<button onClick={()=>setNum(num < images.length-1 ? num + 1 : 0)}>следующая</button>
+	        </div>
+	      )
+    }
+
+
+function App() {
+    const [country, setCountry] = useState('UA');
+    console.log(country)
+  return (
+    <div className="App">
+    	<MySelect value={country} onChange={newCountry => setCountry(newCountry)}/>
+      	<Gallery /> 
+    </div>
+  );
+}
+
+export default App;

React/HW_React_4/src/App.scss

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+.App {
+  text-align: center;
+
+  .Gallery{
+    max-width: 80%;
+    margin-top:40px;
+
+    img{
+      width: 400px;
+      height:200px;
+      border:3px solid blue;
+    }
+
+    button{
+      width: 100px;
+      height: 25px;
+      margin: 20px;
+      border:1px solid yellow;
+      border-radius: 10px;
+      bacKground-color:pink;
+    }
+
+    .Dots{
+      display: flex;
+      flex-direction: row;
+      justify-content: center;
+      margin-top:10px;
+
+      .DotsFon {
+        margin: 10px;
+        width: 17px;
+        height: 17px;
+        background-color: black;
+        border-radius: 50%;
+      }
+      .DotsFon--active {
+        background-color: red;
+      }
+    }
+  }
+}
+

React/HW_React_4/src/App.test.js

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+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

React/HW_React_4/src/index.css

@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

React/HW_React_4/src/index.js

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+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+
+ReactDOM.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+  document.getElementById('root')
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

React/HW_React_4/src/reportWebVitals.js

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+const reportWebVitals = onPerfEntry => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;

React/HW_React_4/src/setupTests.js

@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';