{tocify} $title={Table of Content}
Code snippet
clipboard.directive.tsimport { Directive, ElementRef, HostListener, Input, OnInit, Renderer2 } from '@angular/core';
const clipboardIcon = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-clipboard" viewBox="0 0 16 16">
<path d="M4 1.5H3a2 2 0 0 0-2 2V14a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V3.5a2 2 0 0 0-2-2h-1v1h1a1 1 0 0 1 1 1V14a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V3.5a1 1 0 0 1 1-1h1v-1z"/>
<path d="M9.5 1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-3a.5.5 0 0 1-.5-.5v-1a.5.5 0 0 1 .5-.5h3zm-3-1A1.5 1.5 0 0 0 5 1.5v1A1.5 1.5 0 0 0 6.5 4h3A1.5 1.5 0 0 0 11 2.5v-1A1.5 1.5 0 0 0 9.5 0h-3z"/>
</svg>`;
@Directive({
selector: '[clipboard]'
})
export class ClipboardDirective implements OnInit {
@Input() clipboard: boolean = false;
private clipboardEl!: HTMLElement;
removed: boolean = true;
constructor(
private elRef: ElementRef,
private renderer: Renderer2,
) { }
ngOnInit() {
if (this.clipboard) {
// Create clipboard element
/* <div class="wrapper-clipboard">
<button type="button" class="btn-clipboard">Copy</button>
</div>
*/
this.clipboardEl = this.renderer.createElement('div');
const btnClipboard = `<span type="button" class="btn-clipboard">${clipboardIcon}</span>`;
this.renderer.setProperty(this.clipboardEl, 'innerHTML', btnClipboard);
// Insert the clipboard element before the first element of the parent element
this.renderer.insertBefore(this.elRef.nativeElement, this.clipboardEl, this.elRef.nativeElement.children[0]);
// Add clipboard class to clipboard element to show clipboard icon
this.renderer.addClass(this.clipboardEl, 'wrapper-clipboard');
}
}
// Copy text to clipboard
@HostListener('click')
onClick() {
const el = document.createElement('textarea');
el.value = this.elRef.nativeElement.innerText;
el.setAttribute('readonly', '');
el.style.position = 'absolute';
el.style.left = '-9999px';
document.body.appendChild(el);
el.select();
document.execCommand('copy');
document.body.removeChild(el);
this.renderer.addClass(this.clipboardEl, 'copied');
this.removed = false;
}
// Set initial tooltip content when mouseleave clipboard area
@HostListener('mouseleave') onMouseLeave() {
if (!this.removed) {
this.renderer.removeClass(this.clipboardEl, 'copied');
this.removed = true;
}
}
}styles.scss/***********************************************
*** Copy to clipboard
************************************************/
.wrapper-clipboard {
position: relative;
float: right;
}
.btn-clipboard {
position: absolute;
top: 0.65rem;
right: 0.65rem;
z-index: 10;
display: block;
padding: 0.25rem 0.5rem;
font-size: 0.65em;
color: rgb(155, 154, 154);
background-color: #fff;
border: 1px solid;
border-radius: 0.25rem;
}
.btn-clipboard:hover,
.btn-clipboard:focus {
color: #0d6efd;
background-color: #fff;
}
// Show tooltip when hovering clipboard button
.btn-clipboard:hover:before,
.btn-clipboard:hover:after {
position: absolute;
/**** Top *****
right: 100%;
transform: translateX(-50%);
**************/
}
.btn-clipboard:hover:before {
content: "Copy to Clipboard";
/**** Left *****/
right: 100%;
left: auto;
bottom: 0;
margin-bottom: 0.1rem;
margin-right: 8px;
/**** Top *****
bottom: 100%;
margin-bottom: 8px;
**************/
background-color: rgb(0, 0, 0, 0.9);
color: white;
font-size: 1.25em;
text-align: center;
width: 120px;
padding: 3px 4px;
border-radius: 5px;
}
.btn-clipboard:hover:after {
content: "";
/**** Top *****
// top: 0;
// margin-top: -8px;
**************/
/**** Left *****/
left: 0;
margin-left: -8px;
bottom: 0;
transform: translateY(-50%);
margin-bottom: 0.25rem;
/**************/
border: 5px solid transparent;
border-left-color: rgb(0, 0, 0, 0.9);
}
.copied .btn-clipboard:hover:before {
content: "Copied!";
width: 60px;
}Usage
HTML<div [clipboard]="true"></div>