3 files changed, 127 insertions, 8 deletions

diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index df73aa2a..064903ca 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -79,6 +79,43 @@ async function apiTermsFind(text, details, optionsContext) {
     return {length, definitions};
 }
 
+async function apiTextParse(text, optionsContext) {
+    const options = await apiOptionsGet(optionsContext);
+    const translator = utilBackend().translator;
+
+    const results = [];
+    while (text) {
+        let [definitions, length] = await translator.findTerms(text, {}, options);
+        if (definitions.length > 0) {
+            definitions = dictTermsSort(definitions);
+            const {expression, source, reading} = definitions[0];
+
+            let stemLength = source.length;
+            while (source[stemLength - 1] !== expression[stemLength - 1]) {
+                --stemLength;
+            }
+            const offset = source.length - stemLength;
+
+            for (const result of jpDistributeFurigana(
+                source.slice(0, offset === 0 ? source.length : source.length - offset),
+                reading.slice(0, offset === 0 ? reading.length : source.length + (reading.length - expression.length) - offset)
+            )) {
+                results.push(result);
+            }
+
+            if (stemLength !== source.length) {
+                results.push({text: source.slice(stemLength)});
+            }
+
+            text = text.slice(source.length);
+        } else {
+            results.push({text: text[0]});
+            text = text.slice(1);
+        }
+    }
+    return results;
+}
+
 async function apiKanjiFind(text, optionsContext) {
     const options = await apiOptionsGet(optionsContext);
     const definitions = await utilBackend().translator.findKanji(text, options);
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index efad153a..d0e404f2 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -180,6 +180,7 @@ Backend.messageHandlers = {
     optionsSet: ({changedOptions, optionsContext, source}) => apiOptionsSet(changedOptions, optionsContext, source),
     kanjiFind: ({text, optionsContext}) => apiKanjiFind(text, optionsContext),
     termsFind: ({text, details, optionsContext}) => apiTermsFind(text, details, optionsContext),
+    textParse: ({text, optionsContext}) => apiTextParse(text, optionsContext),
     definitionAdd: ({definition, mode, context, optionsContext}) => apiDefinitionAdd(definition, mode, context, optionsContext),
     definitionsAddable: ({definitions, modes, optionsContext}) => apiDefinitionsAddable(definitions, modes, optionsContext),
     noteView: ({noteId}) => apiNoteView(noteId),
diff --git a/ext/bg/js/search-query-parser.js b/ext/bg/js/search-query-parser.js
index debe53b4..c3a3900b 100644
--- a/ext/bg/js/search-query-parser.js
+++ b/ext/bg/js/search-query-parser.js
@@ -23,22 +23,103 @@ class QueryParser {
 
         this.queryParser = document.querySelector('#query-parser');
 
-        // TODO also enable for mouseover scanning
-        this.queryParser.addEventListener('click', (e) => this.onTermLookup(e));
+        this.queryParser.addEventListener('click', (e) => this.onClick(e));
+        this.queryParser.addEventListener('mousemove', (e) => this.onMouseMove(e));
     }
 
     onError(error) {
         logError(error, false);
     }
 
-    async onTermLookup(e) {
-        const {textSource} = await this.search.onTermLookup(e, {isQueryParser: true});
-        if (textSource) {
-            textSource.select();
+    onClick(e) {
+        this.onTermLookup(e, {disableScroll: true, selectText: true});
+    }
+
+    async onMouseMove(e) {
+        if (
+            (e.buttons & 0x1) !== 0x0 // Left mouse button
+        ) {
+            return;
+        }
+
+        const scanningOptions = this.search.options.scanning;
+        const scanningModifier = scanningOptions.modifier;
+        if (!(
+            QueryParser.isScanningModifierPressed(scanningModifier, e) ||
+            (scanningOptions.middleMouse && (e.buttons & 0x4) !== 0x0) // Middle mouse button
+        )) {
+            return;
         }
+
+        await this.onTermLookup(e, {disableScroll: true, selectText: true, disableHistory: true})
+    }
+
+    onTermLookup(e, params) {
+        this.search.onTermLookup(e, params);
     }
 
-    setText(text) {
-        this.queryParser.innerText = text;
+    async setText(text) {
+        this.search.setSpinnerVisible(true);
+
+        const results = await apiTextParse(text, this.search.getOptionsContext());
+
+        const tempContainer = document.createElement('div');
+        for (const {text, furigana} of results) {
+            if (furigana) {
+                const rubyElement = document.createElement('ruby');
+                const furiganaElement = document.createElement('rt');
+                furiganaElement.innerText = furigana;
+                rubyElement.appendChild(document.createTextNode(text));
+                rubyElement.appendChild(furiganaElement);
+                tempContainer.appendChild(rubyElement);
+            } else {
+                tempContainer.appendChild(document.createTextNode(text));
+            }
+        }
+        this.queryParser.innerHTML = '';
+        this.queryParser.appendChild(tempContainer);
+
+        this.search.setSpinnerVisible(false);
+    }
+
+    async parseText(text) {
+        const results = [];
+        while (text) {
+            const {definitions, length} =  await apiTermsFind(text, {}, this.search.getOptionsContext());
+            if (length) {
+                results.push(definitions);
+                text = text.slice(length);
+            } else {
+                results.push(text[0]);
+                text = text.slice(1);
+            }
+        }
+        return results;
+    }
+
+    popupTimerSet(callback) {
+        const delay = this.options.scanning.delay;
+        if (delay > 0) {
+            this.popupTimer = window.setTimeout(callback, delay);
+        } else {
+            Promise.resolve().then(callback);
+        }
+    }
+
+    popupTimerClear() {
+        if (this.popupTimer !== null) {
+            window.clearTimeout(this.popupTimer);
+            this.popupTimer = null;
+        }
+    }
+
+    static isScanningModifierPressed(scanningModifier, mouseEvent) {
+        switch (scanningModifier) {
+            case 'alt': return mouseEvent.altKey;
+            case 'ctrl': return mouseEvent.ctrlKey;
+            case 'shift': return mouseEvent.shiftKey;
+            case 'none': return true;
+            default: return false;
+        }
     }
 }