Text scanner refactor (#771)

* Create searchAt wrappers

* Add optional support for searching on the click event

* Update QueryParser to use TextScanner's searchOnClick functionality

* Move/rename searchAt

* Move pendingLookup checks

* Add 'searched' event to TextScanner

* Use common searched event for Frontend and QueryParser

* Move functions, make private

1 files changed, 12 insertions, 17 deletions

diff --git a/ext/bg/js/query-parser.js b/ext/bg/js/query-parser.js
index b0ef2d78..a2a04606 100644
--- a/ext/bg/js/query-parser.js
+++ b/ext/bg/js/query-parser.js
@@ -36,15 +36,18 @@ class QueryParser extends EventDispatcher {
             node: this._queryParser,
             ignoreElements: () => [],
             ignorePoint: null,
-            search: this._search.bind(this),
-            documentUtil
+            getOptionsContext,
+            documentUtil,
+            searchTerms: true,
+            searchKanji: false,
+            searchOnClick: true
         });
     }
 
     async prepare() {
         await this._queryParserGenerator.prepare();
         this._textScanner.prepare();
-        this._queryParser.addEventListener('click', this._onClick.bind(this));
+        this._textScanner.on('searched', this._onSearched.bind(this));
     }
 
     setOptions({selectedParser, termSpacing, scanning}) {
@@ -76,18 +79,12 @@ class QueryParser extends EventDispatcher {
 
     // Private
 
-    _onClick(e) {
-        this._textScanner.searchAt(e.clientX, e.clientY, 'click');
-    }
-
-    async _search(textSource, cause) {
-        if (textSource === null) { return null; }
-
-        const optionsContext = this._getOptionsContext();
-        const results = await this._textScanner.findTerms(textSource, optionsContext);
-        if (results === null) { return null; }
-
-        const {definitions, sentence, type} = results;
+    _onSearched({type, definitions, sentence, cause, textSource, optionsContext, error}) {
+        if (error !== null) {
+            yomichan.logError(error);
+            return;
+        }
+        if (type === null) { return; }
 
         this.trigger('searched', {
             type,
@@ -97,8 +94,6 @@ class QueryParser extends EventDispatcher {
             textSource,
             optionsContext
         });
-
-        return {definitions, type};
     }
 
     _onParserChange(e) {