Volume done

React App ()/some-project/.gitignore

@@ -0,0 +1,23 @@
+# 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 App ()/some-project/README.md

@@ -0,0 +1,70 @@
+# 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 the browser.
+
+The page will reload if you make edits.\
+You will 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 App ()/some-project/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "some-project",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.11.9",
+    "@testing-library/react": "^11.2.3",
+    "@testing-library/user-event": "^12.6.2",
+    "react": "^17.0.1",
+    "react-dom": "^17.0.1",
+    "react-scripts": "4.0.1",
+    "web-vitals": "^0.2.4"
+  },
+  "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 App ()/some-project/public/index.html

@@ -0,0 +1,43 @@
+<!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 App ()/some-project/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "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 App ()/some-project/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

React App ()/some-project/src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

React App ()/some-project/src/App.js

@@ -0,0 +1,23 @@
+import React, {useState} from 'react'
+
+const LoginFrom = () => {
+   const [login, setLogin] = useState('')
+   const [password, setPassword] = useState('Lagin')
+
+   console.log(password)
+    return (
+        <div className="LoginFrom">
+            <input value={login} onChange={e => setLogin(e.target.value)} placeholder="Login"/>
+            <input value={password} onChange={e => setPassword(e.target.value)} placeholder="Password" type="password"/>
+            <button disabled={!login || !password} >Login {login && `as ${login}`}</button>
+        </div>
+    )
+}
+
+function App() {
+    return (
+        <LoginFrom />
+    );
+}
+
+export default App;

React App ()/some-project/src/App.test.js

@@ -0,0 +1,8 @@
+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 App ()/some-project/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 App ()/some-project/src/index.js

@@ -0,0 +1,17 @@
+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 App ()/some-project/src/reportWebVitals.js

@@ -0,0 +1,13 @@
+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 App ()/some-project/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';

Volume/Task text.txt

@@ -0,0 +1,8 @@
++сделайте на крутилках RGB:
+3 крутилки, цвет фона каждой соответствует интенсивности (0 - черный, 128 - половина, 255 - максимум).
+еще один див с общим цветом.
+
+код конструктора Control менять не надо,надо, наоборот, научится пользоваться объектами снаружи.
+
+прикрутите крутилку к громкости тэга audio
+https://stackoverflow.com/questions/33747398/html-audio-tag-volume

Volume/index.html

@@ -5,38 +5,25 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width" />
     <title>Другой тайтл ПРИВЕТ 17й</title>
-    <style>
-    </style>
+    <style></style>
 </head>
 
 <body>
-    <h1 id='title'></h1>
-    <div id='container1'></div>
-    <div id='container2'></div>
-    <script>
-        function Control(el, (value=0, max=100, step=1, minAngle=0, maxAngle=0)={}) {
-            const img = document.createElement('img')
-            img.src = '1@3x.png'
-            el.append(img)
+    <h1 id="title"></h1>
+    <audio autoplay id='audio' controls=''>
+        <source src="./RollItUp.mp3" type="audio/mp3">
+    </audio>
 
-            const ratio = (maxAngle - minAngle) / (max - min)
+    <span id="container1"></span>
+    <div id="container2"></div>
 
-            const value2Deg = v => ratio * (value - min) + minAngle
+    <div id='RGB' style='width: 200px; height: 200px; border: 2px solid #000'></div>
 
-            const setValue = newValue => {
-                value = newValue;
-                if(newValue >= max || newValue <= min) {
-                    return
-                }
-                img.style.transform = 'rotate(deg)';
-            }
-            setValue(value);
-            img.onclick = () => {
-                setValue(value + step)
-            }
-        }
+    <span id='color1' style="background: red"></span>
+    <span id='color2' style="background: green"></span>
+    <span id='color3' style="background: blue"></span>
 
-        const volumeControl = new Control(container1) {value: 50}
-        const balanceControl = new Control(container2) {maxAngle: 180, minAngle: 0, min: -50, max: 50}
-    </script>
-</body>
+    <script src="./script.js"></script>
+</body>
+
+</html>

Volume/script.js

@@ -0,0 +1,145 @@
+function Control(
+    el, {
+        value = 0,
+        step = 1,
+        max = 100,
+        min = 0,
+        maxAngle = 360,
+        minAngle = 0
+    } = {}
+) {
+    const img = document.createElement("img");
+    img.src = "1@3x.png";
+    img.width = "250";
+    el.append(img);
+
+    const ratio = (maxAngle - minAngle) / (max - min);
+
+    const value2Deg = () => ratio * (value - min) + minAngle;
+
+    const changeValue = (delta, fireEvent = false) => {
+        let newValue = value + delta;
+        if (newValue >= max) newValue = max;
+        if (newValue <= min) newValue = min;
+
+        value = newValue;
+
+        if (fireEvent && this.onChange && typeof this.onChange === "function") {
+            this.onChange(value);
+        }
+
+        img.style.transform = `rotate(${value2Deg()}deg)`;
+    };
+
+    const {
+        top,
+        left
+    } = img.getBoundingClientRect();
+
+    changeValue(0);
+
+    console.log(img.width, top, left);
+
+    img.onclick = (e) => {
+        changeValue(e.clientX - left > img.width / 2 ? step : -step, true);
+    };
+
+    img.onmousewheel = (e) => {
+        changeValue((e.deltaY * step) / 25, true);
+        e.preventDefault();
+    };
+
+    let startDragAngle;
+
+    const calcAngle = ({
+        layerX,
+        layerY
+    }) => {
+        const deltaX = layerX - img.width / 2;
+        const deltaY = layerY - img.height / 2;
+        return (Math.atan2(deltaY, deltaX) / Math.PI) * 180;
+    };
+
+    img.onmousedown = (e) => {
+        startDragAngle = calcAngle(e);
+        e.preventDefault();
+    };
+
+    img.onmousemove = (e) => {
+        if (startDragAngle !== undefined) {
+            const currentAngle = calcAngle(e);
+            let deltaAngle = currentAngle - startDragAngle;
+
+            // дальше идет коррекция перехода через +-180 градусов
+            // но из-за функции onclick осталось иногда подергивание
+            // при выкручивании в крайние положения
+            // onclick пришлось отключить
+            if (Math.abs(deltaAngle) >= 180) {
+                deltaAngle += deltaAngle < 0 ? 360 : -360;
+            } else {
+                deltaAngle += deltaAngle < 0 ? -360 : 360;
+            }
+            deltaAngle = deltaAngle % 360;
+
+            changeValue(deltaAngle / ratio, true);
+            startDragAngle = currentAngle;
+            e.preventDefault();
+        }
+    };
+
+    img.onmouseup = img.onmouseout = (e) => {
+        if (startDragAngle) {
+            startDragAngle = undefined;
+            e.preventDefault();
+        }
+    };
+
+    this.setValue = (v) => changeValue(v - value);
+    this.changeValue = changeValue;
+
+    this.getValue = () => value;
+}
+
+const volumeControl = new Control(container1, {
+    value: 50, max: 1, step: 0.01
+});
+
+let volumeMp3 = document.getElementById("audio");
+
+// volumeControl.onChange = (value) => console.log("VOLUME", value);
+volumeControl.onChange = (value) => volumeMp3.volume = value;
+
+const redControl = new Control(color1, {
+    maxAngle: 90,
+    minAngle: -90,
+    min: 0,
+    max: 255,
+    value: 0,
+});
+
+const greenControl = new Control(color2, {
+    maxAngle: 90,
+    minAngle: -90,
+    min: 0,
+    max: 255,
+    value: 0,
+});
+
+const blueControl = new Control(color3, {
+    maxAngle: 90,
+    minAngle: -90,
+    min: 0,
+    max: 255,
+    value: 0,
+});
+
+redControl.onChange = (x) => RGB.style.background = `rgb(${x}, ${greenControl.getValue()}, ${blueControl.getValue()})`;
+greenControl.onChange = (x) => RGB.style.background = `rgb(${redControl.getValue()}, ${x}, ${blueControl.getValue()})`;
+blueControl.onChange = (x) => RGB.style.background = `rgb(${redControl.getValue()}, ${greenControl.getValue()}, ${x})`;
+
+// value = 0,
+// step = 1,
+// max = 100,
+// min = 0,
+// maxAngle = 360,
+// minAngle = 0