yomichan/ext/bg/js/search-query-parser.js

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/*
* Copyright (C) 2019-2020 Yomichan Authors
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*
* 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
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* global
* QueryParserGenerator
* TextScanner
* apiModifySettings
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* apiTermsFind
* apiTextParse
* docSentenceExtract
*/
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class QueryParser {
constructor({getOptionsContext, setContent, setSpinnerVisible}) {
this._options = null;
this._getOptionsContext = getOptionsContext;
this._setContent = setContent;
this._setSpinnerVisible = setSpinnerVisible;
this._parseResults = [];
this._queryParser = document.querySelector('#query-parser-content');
this._queryParserSelect = document.querySelector('#query-parser-select-container');
this._queryParserGenerator = new QueryParserGenerator();
this._textScanner = new TextScanner({
node: this._queryParser,
ignoreElements: () => [],
ignorePoint: null,
search: this._search.bind(this)
});
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}
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async prepare() {
await this._queryParserGenerator.prepare();
this._queryParser.addEventListener('click', this._onClick.bind(this));
}
setOptions(options) {
this._options = options;
this._textScanner.setOptions(options);
this._textScanner.setEnabled(true);
this._queryParser.dataset.termSpacing = `${options.parsing.termSpacing}`;
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}
async setText(text) {
this._setSpinnerVisible(true);
this._setPreview(text);
this._parseResults = await apiTextParse(text, this._getOptionsContext());
this._refreshSelectedParser();
this._renderParserSelect();
this._renderParseResult();
this._setSpinnerVisible(false);
}
// Private
_onClick(e) {
this._textScanner.searchAt(e.clientX, e.clientY, 'click');
}
async _search(textSource, cause) {
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if (textSource === null) { return null; }
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const searchText = this._textScanner.getTextSourceContent(textSource, this._options.scanning.length);
if (searchText.length === 0) { return null; }
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const {definitions, length} = await apiTermsFind(searchText, {}, this._getOptionsContext());
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if (definitions.length === 0) { return null; }
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const sentence = docSentenceExtract(textSource, this._options.anki.sentenceExt);
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textSource.setEndOffset(length);
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this._setContent('terms', {definitions, context: {
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focus: false,
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disableHistory: cause === 'mouse',
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sentence,
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url: window.location.href
}});
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return {definitions, type: 'terms'};
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}
_onParserChange(e) {
const value = e.target.value;
apiModifySettings([{
action: 'set',
path: 'parsing.selectedParser',
value,
scope: 'profile',
optionsContext: this._getOptionsContext()
}], 'search');
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}
_refreshSelectedParser() {
if (this._parseResults.length > 0) {
if (!this._getParseResult()) {
const value = this._parseResults[0].id;
apiModifySettings([{
action: 'set',
path: 'parsing.selectedParser',
value,
scope: 'profile',
optionsContext: this._getOptionsContext()
}], 'search');
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}
}
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}
_getParseResult() {
const {selectedParser} = this._options.parsing;
return this._parseResults.find((r) => r.id === selectedParser);
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}
_setPreview(text) {
const previewTerms = [];
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for (let i = 0, ii = text.length; i < ii; i += 2) {
const tempText = text.substring(i, i + 2);
previewTerms.push([{text: tempText, reading: ''}]);
}
this._queryParser.textContent = '';
this._queryParser.appendChild(this._queryParserGenerator.createParseResult(previewTerms, true));
}
_renderParserSelect() {
this._queryParserSelect.textContent = '';
if (this._parseResults.length > 1) {
const {selectedParser} = this._options.parsing;
const select = this._queryParserGenerator.createParserSelect(this._parseResults, selectedParser);
select.addEventListener('change', this._onParserChange.bind(this));
this._queryParserSelect.appendChild(select);
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}
}
_renderParseResult() {
const parseResult = this._getParseResult();
this._queryParser.textContent = '';
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if (!parseResult) { return; }
this._queryParser.appendChild(this._queryParserGenerator.createParseResult(parseResult.content));
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}
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}