gitea/templates/repo/watch_unwatch.tmpl

<form hx-boost="true" hx-target="this" method="post" action="{{$.RepoLink}}/action/{{if $.IsWatchingRepo}}unwatch{{else}}watch{{end}}">
	<div class="ui labeled button" {{if not $.IsSigned}}data-tooltip-content="{{ctx.Locale.Tr "repo.watch_guest_user"}}"{{end}}>
		{{$buttonText := ctx.Locale.Tr "repo.watch"}}
		{{if $.IsWatchingRepo}}{{$buttonText = ctx.Locale.Tr "repo.unwatch"}}{{end}}
		<button type="submit" class="ui compact small basic button"{{if not $.IsSigned}} disabled{{end}} aria-label="{{$buttonText}}">
			{{if $.IsWatchingRepo}}{{svg "octicon-eye-closed"}}{{else}}{{svg "octicon-eye"}}{{end}}
			<span class="not-mobile" aria-hidden="true">{{$buttonText}}</span>
		</button>
		<a hx-boost="false" class="ui basic label" href="{{.RepoLink}}/watchers">
			{{CountFmt .Repository.NumWatches}}
		</a>
	</div>
</form>