allow disabling scan on search page live

ext/bg/js/search-frontend.js

@@ -65,7 +65,7 @@ async function main() {
         if (!options.scanning.enableOnSearchPage || optionsApplied) { return; }
         optionsApplied = true;
 
-        window.frontendInitializationData = {depth: 1, proxy: false};
+        window.frontendInitializationData = {depth: 1, proxy: false, isSearchPage: true};
         injectSearchFrontend();
 
         yomichan.off('optionsUpdated', applyOptions);

ext/fg/js/frontend-initialize.js

@@ -28,7 +28,18 @@ async function main() {
     await yomichan.prepare();
 
     const data = window.frontendInitializationData || {};
-    const {id, depth=0, parentFrameId, url, proxy=false} = data;
+    const {id, depth=0, parentFrameId, url, proxy=false, isSearchPage=false} = data;
+
+    const initEventDispatcher = new EventDispatcher();
+
+    yomichan.on('optionsUpdated', async () => {
+        const optionsContext = {depth: isSearchPage ? 0 : depth, url};
+        const options = await apiOptionsGet(optionsContext);
+        if (isSearchPage) {
+            const disabled = !options.scanning.enableOnSearchPage;
+            initEventDispatcher.trigger('setDisabledOverride', {disabled});
+        }
+    });
 
     const optionsContext = {depth, url};
     const options = await apiOptionsGet(optionsContext);
@@ -65,7 +76,7 @@ async function main() {
         popup = popupHost.getOrCreatePopup(null, null, depth);
     }
 
-    const frontend = new Frontend(popup);
+    const frontend = new Frontend(popup, initEventDispatcher);
     await frontend.prepare();
 }
 

ext/fg/js/frontend.js

@@ -26,15 +26,19 @@
  */
 
 class Frontend extends TextScanner {
-    constructor(popup) {
+    constructor(popup, initEventDispatcher) {
         super(
             window,
             popup.isProxy() ? [] : [popup.getContainer()],
             [(x, y) => this.popup.containsPoint(x, y)],
-            () => this.popup.depth <= this.options.scanning.popupNestingMaxDepth
+            () => this.popup.depth <= this.options.scanning.popupNestingMaxDepth && !this._disabledOverride
         );
 
         this.popup = popup;
+        this.initEventDispatcher = initEventDispatcher;
+
+        this._disabledOverride = false;
+
         this.options = null;
 
         this.optionsContext = {
@@ -73,6 +77,8 @@ class Frontend extends TextScanner {
                 window.visualViewport.addEventListener('resize', this.onVisualViewportResize.bind(this));
             }
 
+            this.initEventDispatcher.on('setDisabledOverride', this.onSetDisabledOverride.bind(this));
+
             yomichan.on('orphaned', this.onOrphaned.bind(this));
             yomichan.on('optionsUpdated', this.updateOptions.bind(this));
             yomichan.on('zoomChanged', this.onZoomChanged.bind(this));
@@ -228,6 +234,14 @@ class Frontend extends TextScanner {
         super.onSearchClear(changeFocus);
     }
 
+    onSetDisabledOverride({disabled}) {
+        this._disabledOverride = disabled;
+        // other cases handed by regular options update
+        if (disabled && this.enabled) {
+            this.setEnabled(false);
+        }
+    }
+
     getOptionsContext() {
         this.optionsContext.url = this.popup.url;
         return this.optionsContext;