Query parser refactor (#683)

* Rename files to better match class name

* Don't pass setContent to QueryParser; use a generic event instead

ext/bg/js/query-parser.js

@@ -22,11 +22,11 @@
  * docSentenceExtract
  */
 
-class QueryParser {
-    constructor({getOptionsContext, setContent, setSpinnerVisible}) {
+class QueryParser extends EventDispatcher {
+    constructor({getOptionsContext, setSpinnerVisible}) {
+        super();
         this._options = null;
         this._getOptionsContext = getOptionsContext;
-        this._setContent = setContent;
         this._setSpinnerVisible = setSpinnerVisible;
         this._parseResults = [];
         this._queryParser = document.querySelector('#query-parser-content');
@@ -80,7 +80,8 @@ class QueryParser {
         const searchText = this._textScanner.getTextSourceContent(textSource, scanLength, layoutAwareScan);
         if (searchText.length === 0) { return null; }
 
-        const {definitions, length} = await api.termsFind(searchText, {}, this._getOptionsContext());
+        const optionsContext = this._getOptionsContext();
+        const {definitions, length} = await api.termsFind(searchText, {}, optionsContext);
         if (definitions.length === 0) { return null; }
 
         const sentenceExtent = this._options.anki.sentenceExt;
@@ -88,12 +89,14 @@ class QueryParser {
 
         textSource.setEndOffset(length, layoutAwareScan);
 
-        this._setContent('terms', {definitions, context: {
-            focus: false,
-            disableHistory: cause === 'mouse',
+        this.trigger('searched', {
+            type: 'terms',
+            definitions,
             sentence,
-            url: window.location.href
-        }});
+            cause,
+            textSource,
+            optionsContext
+        });
 
         return {definitions, type: 'terms'};
     }

ext/bg/js/search.js

@@ -40,7 +40,6 @@ class DisplaySearch extends Display {
         });
         this._queryParser = new QueryParser({
             getOptionsContext: this.getOptionsContext.bind(this),
-            setContent: this.setContent.bind(this),
             setSpinnerVisible: this.setSpinnerVisible.bind(this)
         });
         this._onKeyDownIgnoreKeys = new Map([
@@ -67,6 +66,9 @@ class DisplaySearch extends Display {
         await this.updateOptions();
         yomichan.on('optionsUpdated', () => this.updateOptions());
         await this._queryParser.prepare();
+
+        this._queryParser.on('searched', this._onQueryParserSearch.bind(this));
+
         const options = this.getOptions();
 
         const {queryParams: {query='', mode=''}} = parseUrl(window.location.href);
@@ -169,6 +171,18 @@ class DisplaySearch extends Display {
 
     // Private
 
+    _onQueryParserSearch({type, definitions, sentence, cause}) {
+        this.setContent(type, {
+            definitions,
+            context: {
+                focus: false,
+                disableHistory: cause === 'mouse',
+                sentence,
+                url: window.location.href
+            }
+        });
+    }
+
     _onSearchInput() {
         this._updateSearchButton();
 

ext/bg/search.html

@@ -92,8 +92,8 @@
         <script src="/mixed/js/text-scanner.js"></script>
         <script src="/mixed/js/template-handler.js"></script>
 
-        <script src="/bg/js/search-query-parser-generator.js"></script>
-        <script src="/bg/js/search-query-parser.js"></script>
+        <script src="/bg/js/query-parser-generator.js"></script>
+        <script src="/bg/js/query-parser.js"></script>
         <script src="/bg/js/clipboard-monitor.js"></script>
         <script src="/bg/js/search.js"></script>