fix: apply focus event listener only once

keithamus · muan · web-flow · commit d91d2f0151fb · 2020-04-01T12:17:50.000+01:00
Co-Authored-By: Mu-An 慕安 &lt;me@muanchiou.com&gt;
diff --git a/index.js b/index.js
@@ -252,7 +252,7 @@ class MarkdownToolbarElement extends HTMLElement {
       shortcutListeners.set(this, fn)
     }
     this.setAttribute('tabindex', '0')
-    this.addEventListener('focus', onToolbarFocus)
+    this.addEventListener('focus', onToolbarFocus, {once: true})
   }
 
   disconnectedCallback() {

Original file line number	Diff line number	Diff line change
`@@ -252,7 +252,7 @@ class MarkdownToolbarElement extends HTMLElement {`
`252`	`252`	`shortcutListeners.set(this, fn)`
`253`	`253`	`}`
`254`	`254`	`this.setAttribute('tabindex', '0')`
`255`		`- this.addEventListener('focus', onToolbarFocus)`
	`255`	`+ this.addEventListener('focus', onToolbarFocus, {once: true})`
`256`	`256`	`}`
`257`	`257`
`258`	`258`	`disconnectedCallback() {`