dees-appui-catalog/ts_web/elements/deap-maincontent.ts

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import * as interfaces from './interfaces/index.js';
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import {
DeesElement,
TemplateResult,
property,
customElement,
html,
css,
cssManager,
} from '@designestate/dees-element';
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import * as domtools from '@designestate/dees-domtools';
@customElement('deap-maincontent')
export class DeapMaincontent extends DeesElement {
public static demo = () => html`<deap-maincontent></deap-maincontent>`;
// INSTANCE
@property()
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public tabs: interfaces.ITab[] = [
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{ key: 'option 1', action: () => {} },
{ key: 'a very long option', action: () => {} },
{ key: 'reminder: set your tabs', action: () => {} },
{ key: 'option 4', action: () => {} },
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];
@property()
public selectedTab = null;
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public static styles = [
cssManager.defaultStyles,
css`
:host {
color: #fff;
display: block;
width: 100%;
height: 100%;
position: relative;
background: #222222;
}
.maincontainer {
position: absolute;
height: 100%;
right: 0px;
top: 0px;
width: 100%;
}
.topbar {
position: absolute;
width: 100%;
height: 120px;
background: #101010;
user-select: none;
}
.topbar .heading {
padding: 30px 50px 25px 50px;
font-family: Roboto Mono;
font-size: 25px;
}
.topbar .tabsContainer {
display: grid;
margin-left: 50px;
}
.topbar .tabsContainer .tab {
color: #a0a0a0;
white-space: nowrap;
margin-right: 20px;
cursor: pointer;
transition: color 0.1s;
}
.topbar .tabsContainer .tab:hover {
color: #ffffff;
}
.topbar .tabsContainer .tab.selectedTab {
color: #e0e0e0;
}
.topbar .tabIndicator {
position: absolute;
left: 50px;
bottom: 0px;
height: 4px;
width: 50px;
background: #484848;
transition: all 0.1s;
}
.mainicon {
}
`,
];
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public render(): TemplateResult {
return html`
<style>
.topbar .tabsContainer {
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grid-template-columns: repeat(${this.tabs.length}, min-content);
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}
</style>
<div class="maincontainer">
<div class="topbar">
<div class="heading">lossless.com</div>
<div class="tabsContainer">
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${this.tabs.map((tabArg) => {
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return html`
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<div
class="tab ${tabArg === this.selectedTab ? 'selectedTab' : null}"
@click="${() => {
this.selectedTab = tabArg;
this.updateTabIndicator();
tabArg.action();
}}"
>
${tabArg.key}
</div>
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`;
})}
</div>
<div class="tabIndicator"></div>
</div>
</div>
`;
}
/**
* updates the indicator
*/
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private updateTabIndicator() {
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let selectedTab = this.selectedTab;
const tabIndex = this.tabs.indexOf(selectedTab);
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const selectedTabElement: HTMLElement = this.shadowRoot.querySelector(
`.tabsContainer .tab:nth-child(${tabIndex + 1})`
);
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const tabIndicator: HTMLElement = this.shadowRoot.querySelector('.tabIndicator');
tabIndicator.style.width = selectedTabElement.clientWidth + 'px';
tabIndicator.style.left = selectedTabElement.offsetLeft + 'px';
}
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private updateTab(tabArg: interfaces.ITab) {
this.selectedTab = tabArg;
this.updateTabIndicator();
this.selectedTab.action();
}
firstUpdated() {
this.updateTab(this.tabs[0]);
}
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}