Extension unload detection (#647)

* Update how extension unload is detected

* Remove event handlers and use yomichan.isExtensionUnloaded instead

* Update terminology

2 files changed, 3 insertions, 9 deletions

diff --git a/ext/fg/float.html b/ext/fg/float.html
index 735a880a..a13244ee 100644
--- a/ext/fg/float.html
+++ b/ext/fg/float.html
@@ -29,7 +29,7 @@
             </div>
         </div>
 
-        <div id="error-orphaned" hidden>
+        <div id="error-extension-unloaded" hidden>
             <div class="entry">
                 <h1>Yomichan Updated!</h1>
                 <p>
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index f6b0d236..33cb0b90 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -32,7 +32,6 @@ class Frontend {
         this._options = null;
         this._pageZoomFactor = 1.0;
         this._contentScale = 1.0;
-        this._orphaned = false;
         this._lastShowPromise = Promise.resolve();
         this._enabledEventListeners = new EventListenerCollection();
         this._activeModifiers = new Set();
@@ -110,7 +109,6 @@ class Frontend {
             visualViewport.addEventListener('resize', this._onVisualViewportResize.bind(this));
         }
 
-        yomichan.on('orphaned', this._onOrphaned.bind(this));
         yomichan.on('optionsUpdated', this.updateOptions.bind(this));
         yomichan.on('zoomChanged', this._onZoomChanged.bind(this));
         chrome.runtime.onMessage.addListener(this._onRuntimeMessage.bind(this));
@@ -230,10 +228,6 @@ class Frontend {
         return false;
     }
 
-    _onOrphaned() {
-        this._orphaned = true;
-    }
-
     _onZoomChanged({newZoomFactor}) {
         this._pageZoomFactor = newZoomFactor;
         this._updateContentScale();
@@ -370,9 +364,9 @@ class Frontend {
                 }
             }
         } catch (e) {
-            if (this._orphaned) {
+            if (yomichan.isExtensionUnloaded) {
                 if (textSource !== null && this._options.scanning.modifier !== 'none') {
-                    this._showPopupContent(textSource, await this.getOptionsContext(), 'orphaned');
+                    this._showPopupContent(textSource, await this.getOptionsContext(), 'extensionUnloaded');
                 }
             } else {
                 yomichan.logError(e);