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-rw-r--r--client/src/app/shared/angular/timestamp-route-transformer.directive.ts45
1 files changed, 45 insertions, 0 deletions
diff --git a/client/src/app/shared/angular/timestamp-route-transformer.directive.ts b/client/src/app/shared/angular/timestamp-route-transformer.directive.ts
new file mode 100644
index 000000000..d71077d10
--- /dev/null
+++ b/client/src/app/shared/angular/timestamp-route-transformer.directive.ts
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1import { Directive, ElementRef, HostListener, Output, EventEmitter } from '@angular/core'
2import { Router } from '@angular/router'
3
4type ElementEvent = Omit<Event, 'target'> & {
5 target: HTMLInputElement
6}
7
8@Directive({
9 selector: '[timestampRouteTransformer]'
10})
11export class TimestampRouteTransformerDirective {
12 @Output() timestampClicked = new EventEmitter<number>()
13
14 constructor (private el: ElementRef, private router: Router) { }
15
16 @HostListener('click', ['$event'])
17 public onClick ($event: ElementEvent) {
18 if ($event.target.hasAttribute('href')) {
19 const ngxLink = document.createElement('a')
20 ngxLink.href = $event.target.getAttribute('href')
21
22 // we only care about reflective links
23 if (ngxLink.host !== window.location.host) return
24
25 const ngxLinkParams = new URLSearchParams(ngxLink.search)
26 if (ngxLinkParams.has('start')) {
27 const separators = ['h', 'm', 's']
28 const start = ngxLinkParams
29 .get('start')
30 .match(new RegExp('(\\d{1,9}[' + separators.join('') + '])','g')) // match digits before any given separator
31 .map(t => {
32 if (t.includes('h')) return parseInt(t, 10) * 3600
33 if (t.includes('m')) return parseInt(t, 10) * 60
34 return parseInt(t, 10)
35 })
36 .reduce((acc, t) => acc + t)
37 this.timestampClicked.emit(start)
38 }
39
40 $event.preventDefault()
41 }
42
43 return
44 }
45}