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Add example-{react, vue} (#209)

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* Add example-{react, vue}

* Update CHANGELOG.md

* Update README.md
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Jaco Greeff
2019-09-16 20:46:47 +02:00
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commit e87647e3d9
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packages/example-react/.nodoc
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packages/example-react/LICENSE
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Apache License
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packages/example-react/README.md
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# @polkadot/example-react
A versy basic React example with `@polkadot/ui-keyring`, `@polkadot/ui-settings` & `@polkadot/react-identicon`
packages/example-react/index.html
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<html>
<head>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css" />
<style>
#example {
padding: 0.5em;
}
button {
cursor: pointer;
padding: 0.5rem 0.75rem;
}
label {
display: block;
margin: 0.25rem 0;
opacity: 0.5;
}
section {
padding: 0.5rem 1rem;
}
textarea {
resize: none;
}
.icon {
margin-right: 0.75rem;
}
</style>
</head>
<body>
<div id="example"></div>
<script src="./build/main.js"></script>
</body>
</html>
packages/example-react/package.json
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{
"name": "@polkadot/example-react",
"version": "0.45.0-beta.6",
"description": "A very basic example with ui-* & react-* packages",
"main": "index.js",
"author": "Jaco Greeff <jacogr@gmail.com>",
"maintainers": [
"Jaco Greeff <jacogr@gmail.com>"
],
"license": "Apache-2.0",
"dependencies": {
"@babel/runtime": "^7.6.0"
}
}
packages/example-react/src/index.tsx
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// Copyright 2017-2019 @polkadot/example-react authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
import { Prefix } from '@polkadot/util-crypto/address/types';
import React, { useEffect, useState } from 'react';
import ReactDOM from 'react-dom';
import Identicon from '@polkadot/react-identicon';
import keyring from '@polkadot/ui-keyring';
import settings from '@polkadot/ui-settings';
import { mnemonicGenerate, cryptoWaitReady } from '@polkadot/util-crypto';
interface Props {
className?: string;
}
const rootElement = document.getElementById('example');
if (!rootElement) {
throw new Error('Unable to find element with id \'example\'');
}
function App ({ className }: Props): React.ReactElement<Props> | null {
const [address, setAddress] = useState<string | null>(null);
const [phrase, setPhrase] = useState<string | null>(null);
const [ss58Format, setSS58Format] = useState<Prefix>(42);
const _onClickNew = (): void => {
const phrase = mnemonicGenerate(12);
const { address } = keyring.createFromUri(phrase);
setAddress(keyring.encodeAddress(address, ss58Format));
setPhrase(phrase);
};
const _onChangeSS58Format = ({ currentTarget: { value } }: React.SyntheticEvent<HTMLSelectElement>): void => {
setSS58Format(parseInt(value, 10) as Prefix);
};
useEffect((): void => {
_onClickNew();
}, []);
useEffect((): void => {
address && setAddress(keyring.encodeAddress(address, ss58Format));
}, [address, ss58Format]);
if (!address || !phrase) {
return null;
}
return (
<div className={className}>
<section>
<button onClick={_onClickNew}>another random address</button>
</section>
<section>
<label>phrase</label>
<textarea cols={40} rows={4} readOnly value={phrase} />
</section>
<section>
<label>icons</label>
<Identicon className='icon' value={address} />
<Identicon className='icon' value={address} theme='polkadot' />
<Identicon className='icon' value={address} theme='beachball' />
</section>
<section>
<label>address</label>
{address}
</section>
<section>
<label>ss58 format</label>
<select onChange={_onChangeSS58Format} value={ss58Format}>
{settings.availablePrefixes
.filter((_, index): boolean => index !== 0)
.map(({ text, value }): React.ReactNode => (
<option key={value} value={value}>{text}</option>
))
}
</select>
</section>
</div>
);
}
cryptoWaitReady().then((): void => {
keyring.loadAll({ ss58Format: 42, type: 'sr25519' });
ReactDOM.render(<App />, rootElement);
});
packages/example-react/webpack.config.js
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/* eslint-disable @typescript-eslint/no-var-requires */
// Copyright 2017-2019 @polkadot/example-react authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
const path = require('path');
const { WebpackPluginServe } = require('webpack-plugin-serve');
module.exports = {
context: __dirname,
devtool: 'cheap-eval-source-map',
entry: './src/index.tsx',
mode: 'development',
output: {
chunkFilename: '[name].[chunkhash:8].js',
globalObject: '(typeof self !== \'undefined\' ? self : this)',
filename: '[name].js',
path: path.join(__dirname, 'build')
},
resolve: {
alias: {
'@polkadot/react-identicon': path.resolve(__dirname, '../react-identicon/src'),
'@polkadot/ui-keyring': path.resolve(__dirname, '../ui-keyring/src'),
'@polkadot/ui-settings': path.resolve(__dirname, '../ui-settings/src'),
'@polkadot/ui-shared': path.resolve(__dirname, '../ui-shared/src')
},
extensions: ['.js', '.ts', '.tsx']
},
module: {
rules: [
{
test: /\.(ts|tsx)$/,
exclude: /(node_modules)/,
use: [
{
loader: 'babel-loader',
options: require('../../babel.config.js')
}
]
}
]
},
plugins: [
new WebpackPluginServe({
hmr: false, // switch off, Chrome WASM memory leak
liveReload: false, // explict off, overrides hmr
progress: false, // since we have hmr off, disable
port: 8080,
static: __dirname
})
],
watch: true
};