Move bg/js (#1387)

* Move bg/js/anki.js to js/comm/anki.js

* Move bg/js/mecab.js to js/comm/mecab.js

* Move bg/js/search-main.js to js/display/search-main.js

* Move bg/js/template-patcher.js to js/templates/template-patcher.js

* Move bg/js/template-renderer-frame-api.js to js/templates/template-renderer-frame-api.js

* Move bg/js/template-renderer-frame-main.js to js/templates/template-renderer-frame-main.js

* Move bg/js/template-renderer-proxy.js to js/templates/template-renderer-proxy.js

* Move bg/js/template-renderer.js to js/templates/template-renderer.js

* Move bg/js/media-utility.js to js/media/media-utility.js

* Move bg/js/native-simple-dom-parser.js to js/dom/native-simple-dom-parser.js

* Move bg/js/simple-dom-parser.js to js/dom/simple-dom-parser.js

* Move bg/js/audio-downloader.js to js/media/audio-downloader.js

* Move bg/js/deinflector.js to js/language/deinflector.js

* Move bg/js/backend.js to js/background/backend.js

* Move bg/js/translator.js to js/language/translator.js

* Move bg/js/search-display-controller.js to js/display/search-display-controller.js

* Move bg/js/request-builder.js to js/background/request-builder.js

* Move bg/js/text-source-map.js to js/general/text-source-map.js

* Move bg/js/clipboard-reader.js to js/comm/clipboard-reader.js

* Move bg/js/clipboard-monitor.js to js/comm/clipboard-monitor.js

* Move bg/js/query-parser.js to js/display/query-parser.js

* Move bg/js/profile-conditions.js to js/background/profile-conditions.js

* Move bg/js/dictionary-database.js to js/language/dictionary-database.js

* Move bg/js/dictionary-importer.js to js/language/dictionary-importer.js

* Move bg/js/anki-note-builder.js to js/data/anki-note-builder.js

* Move bg/js/anki-note-data.js to js/data/anki-note-data.js

* Move bg/js/database.js to js/data/database.js

* Move bg/js/json-schema.js to js/data/json-schema.js

* Move bg/js/options.js to js/data/options-util.js

* Move bg/js/background-main.js to js/background/background-main.js

* Move bg/js/permissions-util.js to js/data/permissions-util.js

* Move bg/js/context-main.js to js/pages/action-popup-main.js

* Move bg/js/generic-page-main.js to js/pages/generic-page-main.js

* Move bg/js/info-main.js to js/pages/info-main.js

* Move bg/js/permissions-main.js to js/pages/permissions-main.js

* Move bg/js/welcome-main.js to js/pages/welcome-main.js

1 files changed, 232 insertions, 0 deletions

diff --git a/ext/js/display/query-parser.js b/ext/js/display/query-parser.js
new file mode 100644
index 00000000..05ebfa27
--- /dev/null
+++ b/ext/js/display/query-parser.js
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2019-2021  Yomichan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* global
+ * TextScanner
+ * api
+ */
+
+class QueryParser extends EventDispatcher {
+    constructor({getSearchContext, documentUtil}) {
+        super();
+        this._getSearchContext = getSearchContext;
+        this._documentUtil = documentUtil;
+        this._text = '';
+        this._setTextToken = null;
+        this._selectedParser = null;
+        this._parseResults = [];
+        this._queryParser = document.querySelector('#query-parser-content');
+        this._queryParserModeContainer = document.querySelector('#query-parser-mode-container');
+        this._queryParserModeSelect = document.querySelector('#query-parser-mode-select');
+        this._textScanner = new TextScanner({
+            node: this._queryParser,
+            getSearchContext,
+            documentUtil,
+            searchTerms: true,
+            searchKanji: false,
+            searchOnClick: true
+        });
+    }
+
+    get text() {
+        return this._text;
+    }
+
+    prepare() {
+        this._textScanner.prepare();
+        this._textScanner.on('searched', this._onSearched.bind(this));
+        this._queryParserModeSelect.addEventListener('change', this._onParserChange.bind(this), false);
+    }
+
+    setOptions({selectedParser, termSpacing, scanning}) {
+        let selectedParserChanged = false;
+        if (selectedParser === null || typeof selectedParser === 'string') {
+            selectedParserChanged = (this._selectedParser !== selectedParser);
+            this._selectedParser = selectedParser;
+        }
+        if (typeof termSpacing === 'boolean') {
+            this._queryParser.dataset.termSpacing = `${termSpacing}`;
+        }
+        if (scanning !== null && typeof scanning === 'object') {
+            this._textScanner.setOptions(scanning);
+        }
+        this._textScanner.setEnabled(true);
+        if (selectedParserChanged && this._parseResults.length > 0) {
+            this._renderParseResult();
+        }
+    }
+
+    async setText(text) {
+        this._text = text;
+        this._setPreview(text);
+
+        const token = {};
+        this._setTextToken = token;
+        this._parseResults = await api.textParse(text, this._getOptionsContext());
+        if (this._setTextToken !== token) { return; }
+
+        this._refreshSelectedParser();
+
+        this._renderParserSelect();
+        this._renderParseResult();
+    }
+
+    // Private
+
+    _onSearched(e) {
+        const {error} = e;
+        if (error !== null) {
+            yomichan.logError(error);
+            return;
+        }
+        if (e.type === null) { return; }
+
+        this.trigger('searched', e);
+    }
+
+    _onParserChange(e) {
+        const value = e.currentTarget.value;
+        this._setSelectedParser(value);
+    }
+
+    _getOptionsContext() {
+        return this._getSearchContext().optionsContext;
+    }
+
+    _refreshSelectedParser() {
+        if (this._parseResults.length > 0 && !this._getParseResult()) {
+            const value = this._parseResults[0].id;
+            this._setSelectedParser(value);
+        }
+    }
+
+    _setSelectedParser(value) {
+        const optionsContext = this._getOptionsContext();
+        api.modifySettings([{
+            action: 'set',
+            path: 'parsing.selectedParser',
+            value,
+            scope: 'profile',
+            optionsContext
+        }], 'search');
+    }
+
+    _getParseResult() {
+        const selectedParser = this._selectedParser;
+        return this._parseResults.find((r) => r.id === selectedParser);
+    }
+
+    _setPreview(text) {
+        const terms = [[{text, reading: ''}]];
+        this._queryParser.textContent = '';
+        this._queryParser.appendChild(this._createParseResult(terms, true));
+    }
+
+    _renderParserSelect() {
+        const visible = (this._parseResults.length > 1);
+        if (visible) {
+            this._updateParserModeSelect(this._queryParserModeSelect, this._parseResults, this._selectedParser);
+        }
+        this._queryParserModeContainer.hidden = !visible;
+    }
+
+    _renderParseResult() {
+        const parseResult = this._getParseResult();
+        this._queryParser.textContent = '';
+        if (!parseResult) { return; }
+        this._queryParser.appendChild(this._createParseResult(parseResult.content, false));
+    }
+
+    _updateParserModeSelect(select, parseResults, selectedParser) {
+        const fragment = document.createDocumentFragment();
+
+        let index = 0;
+        let selectedIndex = -1;
+        for (const parseResult of parseResults) {
+            const option = document.createElement('option');
+            option.value = parseResult.id;
+            switch (parseResult.source) {
+                case 'scanning-parser':
+                    option.textContent = 'Scanning parser';
+                    break;
+                case 'mecab':
+                    option.textContent = `MeCab: ${parseResult.dictionary}`;
+                    break;
+                default:
+                    option.textContent = `Unknown source: ${parseResult.source}`;
+                    break;
+            }
+            fragment.appendChild(option);
+
+            if (selectedParser === parseResult.id) {
+                selectedIndex = index;
+            }
+            ++index;
+        }
+
+        select.textContent = '';
+        select.appendChild(fragment);
+        select.selectedIndex = selectedIndex;
+    }
+
+    _createParseResult(terms, preview) {
+        const type = preview ? 'preview' : 'normal';
+        const fragment = document.createDocumentFragment();
+        for (const term of terms) {
+            const termNode = document.createElement('span');
+            termNode.className = 'query-parser-term';
+            termNode.dataset.type = type;
+            for (const segment of term) {
+                if (segment.reading.trim().length === 0) {
+                    this._addSegmentText(segment.text, termNode);
+                } else {
+                    termNode.appendChild(this._createSegment(segment));
+                }
+            }
+            fragment.appendChild(termNode);
+        }
+        return fragment;
+    }
+
+    _createSegment(segment) {
+        const segmentNode = document.createElement('ruby');
+        segmentNode.className = 'query-parser-segment';
+
+        const textNode = document.createElement('span');
+        textNode.className = 'query-parser-segment-text';
+
+        const readingNode = document.createElement('rt');
+        readingNode.className = 'query-parser-segment-reading';
+
+        segmentNode.appendChild(textNode);
+        segmentNode.appendChild(readingNode);
+
+        this._addSegmentText(segment.text, textNode);
+        readingNode.textContent = segment.reading;
+
+        return segmentNode;
+    }
+
+    _addSegmentText(text, container) {
+        for (const character of text) {
+            const node = document.createElement('span');
+            node.className = 'query-parser-char';
+            node.textContent = character;
+            container.appendChild(node);
+        }
+    }
+}