dees-catalog/ts_web/elements/dees-dataview-codebox.ts

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import {
DeesElement,
html,
customElement,
TemplateResult,
property,
state,
} from '@designestate/dees-element';
import hlight from 'highlight.js';
import * as smartstring from '@pushrocks/smartstring';
import * as domtools from '@designestate/dees-domtools';
declare global {
interface HTMLElementTagNameMap {
'dees-dataview-codebox': DeesDataviewCodebox;
}
}
@customElement('dees-dataview-codebox')
export class DeesDataviewCodebox extends DeesElement {
public static demo = () => html`<dees-dataview-codebox proglang="typescript">
import * as text from './hello'; const hiThere = 'nice'; const myFunction = async () => {
console.log('nice one'); }
</dees-dataview-codebox>`;
@property()
public progLang: string = 'typescript';
@property({
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type: String,
reflect: true,
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})
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public codeToDisplay: string = '';
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constructor() {
super();
}
render(): TemplateResult {
return html`
${domtools.elementBasic.styles}
<style>
:host {
position: relative;
display: block;
text-align: left;
font-size: 16px;
}
.mainbox {
position: relative;
color: ${this.goBright ? '#333333' : '#ffffff'};
}
.languageLabel {
color: #fff;
font-size: 12px;
z-index: 10;
background: #6596ff;
display: inline-block;
position: absolute;
right: 32px;
padding: 4px;
border-bottom-left-radius: 3px;
border-bottom-right-radius: 3px;
}
.hljs-keyword {
color: #ff65ec;
}
.codegrid {
display: grid;
grid-template-columns: 50px auto;
background: ${this.goBright ? '#ffffff' : '#191919'};
border-top: 1px solid ${this.goBright ? '#ffffff' : '#333333'};
box-shadow: 0px 0px 5px ${this.goBright ? 'rgba(0,0,0,0.1)' : 'rgba(0,0,0,0.5)'};
border-radius: 3px;
overflow: hidden;
}
.lineNumbers {
background: ${this.goBright ? '#fafafa' : '#151515'};
color: ${this.goBright ? '#acacac' : '#666666'};
padding: 30px 16px 0px 0px;
text-align: right;
}
.lineCounter:last-child {
opacity: 50%;
}
pre {
overflow-x: auto;
margin: 0px;
padding: 30px 40px;
}
code {
font-weight: ${this.goBright ? '400' : '300'};
padding: 0px;
margin: 0px;
}
code,
code *,
.lineNumbers {
line-height: 1.4em;
font-weight: 200;
font-family: monospace;
}
.hljs-string {
color: #ffa465;
}
.hljs-built_in {
color: #65ff6a;
}
.hljs-function {
color: ${this.goBright ? '#2765DF': '#6596ff' };
}
.hljs-params {
color: ${this.goBright ? '#3DB420' : '#65d5ff' };
}
.hljs-comment {
color: ${this.goBright ? '#EF9300' : '#ffd765' };
}
</style>
<div class="mainbox">
<div class="languageLabel">${this.progLang}</div>
<div class="codegrid">
<div class="lineNumbers">
${(() => {
let lineCounter = 0;
return this.codeToDisplay.split('\n').map(lineArg => {
lineCounter++;
return html`<div class="lineCounter">${lineCounter}</div>`;
})
})()}
</div>
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<pre><code></code></pre>
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</div>
</div>
`;
}
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@state()
private codeToDisplayStore = '';
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public async updated(_changedProperties) {
super.updated(_changedProperties);
console.log('highlighting now');
console.log(this.childNodes);
const slottedCodeNodes: Text[] = [];
this.childNodes.forEach((childNode) => {
if (childNode.nodeName === '#text') {
slottedCodeNodes.push(childNode as Text);
}
});
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if (this.codeToDisplay && this.codeToDisplay !== this.codeToDisplayStore) {
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this.codeToDisplayStore = smartstring.indent.normalize(this.codeToDisplay).trimStart();
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}
if (slottedCodeNodes[0] && slottedCodeNodes[0].wholeText && !this.codeToDisplay) {
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this.codeToDisplayStore = smartstring.indent.normalize(slottedCodeNodes[0].wholeText).trimStart();
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this.codeToDisplay = this.codeToDisplayStore;
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}
await domtools.plugins.smartdelay.delayFor(0);
const localCodeNode = this.shadowRoot.querySelector('code');
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const html = hlight.highlight(this.codeToDisplayStore, {language: this.progLang, ignoreIllegals: true});
localCodeNode.innerHTML = html.value;
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}
}