From 626a86682d65a68f1049af0482717bde27b58834 Mon Sep 17 00:00:00 2001
From: Alex Yatskov <alex@foosoft.net>
Date: Thu, 21 Apr 2016 20:11:17 -0700
Subject: Work on popup script

---
 ext/fg/js/popup.js | 39 ++++++++++++++++++++++++++++-----------
 1 file changed, 28 insertions(+), 11 deletions(-)

(limited to 'ext')

diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index e48703bf..3c3d0510 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -20,26 +20,43 @@
 class Popup {
     constructor() {
         this.offset = 10;
-
-        this.popup = document.createElement('iframe');
-        this.popup.id = 'yomichan-popup';
-        this.popup.addEventListener('mousedown', (e) => e.stopPropagation());
-        this.popup.addEventListener('scroll', (e) => e.stopPropagation());
-
-        document.body.appendChild(this.popup);
     }
 
-    show(cont, pos) {
+    show(content, pos) {
+        inject();
+
         this.popup.style.left = pos.x + 'px';
         this.popup.style.top  = pos.y + 'px';
         this.popup.style.visibility = 'visible';
     }
 
     hide() {
-        this.popup.style.visibility = 'hidden';
+        remove();
+    }
+
+    update(content) {
+        if (this.popup !== null) {
+            this.popup.setAttribute('srcdoc', content);
+        }
+    }
+
+    inject() {
+        if (this.popup !== null) {
+            return;
+        }
+
+        this.popup = document.createElement('iframe');
+        this.popup.id = 'yomichan-popup';
+        this.popup.addEventListener('mousedown', (e) => e.stopPropagation());
+        this.popup.addEventListener('scroll', (e) => e.stopPropagation());
+
+        document.body.appendChild(this.popup);
     }
 
-    update(cont) {
-        this.popup.setAttribute('srcdoc', cont);
+    remove() {
+        if (this.popup !== null) {
+            this.popup.parentNode.removeChild(this.popup);
+            this.popup = null;
+        }
     }
 }
-- 
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