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carbon/components/Carbon.js

258 lines
7.7 KiB
JavaScript

import React from 'react'
import dynamic from 'next/dynamic'
import * as hljs from 'highlight.js'
import debounce from 'lodash.debounce'
import ms from 'ms'
import { Controlled as CodeMirror } from 'react-codemirror2'
import SpinnerWrapper from './SpinnerWrapper'
import WindowControls from './WindowControls'
import {
COLORS,
LANGUAGE_MODE_HASH,
LANGUAGE_NAME_HASH,
LANGUAGE_MIME_HASH,
DEFAULT_SETTINGS
} from '../lib/constants'
const Watermark = dynamic(() => import('./svg/Watermark'), {
loading: () => null
})
function searchLanguage(l) {
const config = LANGUAGE_NAME_HASH[l] || LANGUAGE_MODE_HASH[l] || LANGUAGE_MIME_HASH[l]
if (config) {
return config.mime || config.mode
}
}
class Carbon extends React.PureComponent {
static defaultProps = {
onChange: () => {}
}
handleLanguageChange = debounce(
(newCode, language) => {
if (language === 'auto') {
// try to set the language
const detectedLanguage = hljs.highlightAuto(newCode).language
const languageMode = searchLanguage(detectedLanguage)
if (languageMode) {
return languageMode
}
}
const languageMode = searchLanguage(language)
if (languageMode) {
return languageMode
}
return language
},
ms('300ms'),
{
leading: true,
trailing: true
}
)
onBeforeChange = (editor, meta, code) => {
if (!this.props.readOnly) {
this.props.onChange(code)
}
}
render() {
const config = { ...DEFAULT_SETTINGS, ...this.props.config }
const languageMode = this.handleLanguageChange(
this.props.children,
config.language && config.language.toLowerCase()
)
const options = {
lineNumbers: config.lineNumbers,
mode: languageMode || 'plaintext',
theme: config.theme,
scrollBarStyle: null,
viewportMargin: Infinity,
lineWrapping: true,
extraKeys: {
'Shift-Tab': 'indentLess'
},
// negative values removes the cursor, undefined means default (530)
cursorBlinkRate: this.props.readOnly ? -1 : undefined,
// needs to be able to refresh every 16ms to hit 60 frames / second
pollInterval: 16
}
const backgroundImage =
(this.props.config.backgroundImage && this.props.config.backgroundImageSelection) ||
this.props.config.backgroundImage
const content = (
<div className="container">
{config.windowControls ? (
<WindowControls
theme={config.windowTheme}
code={this.props.children}
copyable={this.props.copyable}
light={this.props.theme.light}
/>
) : null}
<CodeMirror
className={`CodeMirror__container window-theme__${config.windowTheme}`}
onBeforeChange={this.onBeforeChange}
value={this.props.children}
options={options}
/>
{config.watermark && <Watermark light={this.props.theme.light} />}
<div className="container-bg">
<div className="white eliminateOnRender" />
<div className="alpha eliminateOnRender" />
<div className="bg" />
</div>
<style jsx>
{`
.container {
position: relative;
min-width: ${config.widthAdjustment ? '90px' : '680px'};
max-width: 1024px;
padding: ${config.paddingVertical} ${config.paddingHorizontal};
}
.container :global(.watermark) {
fill-opacity: 0.3;
position: absolute;
z-index: 2;
bottom: calc(${config.paddingVertical} + 16px);
right: calc(${config.paddingHorizontal} + 16px);
}
.container .container-bg {
position: absolute;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
}
.container .white {
background: #fff;
position: absolute;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
}
.container .bg {
${this.props.config.backgroundMode === 'image'
? `background: url(${backgroundImage});
background-size: cover;
background-repeat: no-repeat;`
: `background: ${this.props.config.backgroundColor || config.backgroundColor};
background-size: auto;
background-repeat: repeat;`} position: absolute;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
}
.container .alpha {
position: absolute;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAMUlEQVQ4T2NkYGAQYcAP3uCTZhw1gGGYhAGBZIA/nYDCgBDAm9BGDWAAJyRCgLaBCAAgXwixzAS0pgAAAABJRU5ErkJggg==);
}
.container :global(.CodeMirror-gutters) {
background-color: unset;
border-right: none;
}
.container :global(.CodeMirror__container) {
min-width: inherit;
position: relative;
z-index: 1;
border-radius: 5px;
${config.dropShadow
? `box-shadow: 0 ${config.dropShadowOffsetY} ${
config.dropShadowBlurRadius
} rgba(0, 0, 0, 0.55)`
: ''};
}
.container :global(.CodeMirror__container .CodeMirror) {
height: auto;
min-width: inherit;
padding: 18px 18px;
padding-left: 12px;
${config.lineNumbers ? 'padding-left: 12px;' : ''} border-radius: 5px;
font-family: ${config.fontFamily}, monospace !important;
font-size: ${config.fontSize};
line-height: ${config.lineHeight};
font-variant-ligatures: contextual;
font-feature-settings: 'calt' 1;
user-select: none;
}
.container :global(.CodeMirror-scroll),
.container :global(.CodeMirror-hscrollbar) {
overflow: hidden !important;
}
.container :global(.window-theme__sharp > .CodeMirror) {
border-radius: 0px;
}
.container :global(.window-theme__bw > .CodeMirror) {
border: 2px solid ${COLORS.SECONDARY};
}
.container :global(.window-controls + .CodeMirror__container > .CodeMirror) {
padding-top: 48px;
}
`}
</style>
</div>
)
return (
<div className="section">
<div className="export-container" ref={this.props.innerRef} id="export-container">
<SpinnerWrapper loading={this.props.loading}>{content}</SpinnerWrapper>
<div className="twitter-png-fix" />
</div>
<style jsx>
{`
.section,
.export-container {
height: 100%;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
overflow: hidden;
}
/* forces twitter to save images as png — https://github.com/dawnlabs/carbon/issues/86 */
.twitter-png-fix {
height: 1px;
width: 100%;
background: rgba(0, 0, 0, 0.01);
}
`}
</style>
</div>
)
}
}
export default React.forwardRef((props, ref) => <Carbon {...props} innerRef={ref} />)