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/*
* Copyright (C) 2019-2020 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
* QueryParserGenerator
* TextScanner
* api
*/
class QueryParser extends EventDispatcher {
constructor({getOptionsContext, setSpinnerVisible, documentUtil}) {
super();
this._getOptionsContext = getOptionsContext;
this._setSpinnerVisible = setSpinnerVisible;
this._selectedParser = null;
this._documentUtil = documentUtil;
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),
documentUtil
});
}
async prepare() {
await this._queryParserGenerator.prepare();
this._textScanner.prepare();
this._queryParser.addEventListener('click', this._onClick.bind(this));
}
setOptions({selectedParser, termSpacing, scanning}) {
if (selectedParser === null || typeof selectedParser === 'string') {
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);
}
async setText(text) {
this._setSpinnerVisible(true);
this._setPreview(text);
this._parseResults = await api.textParse(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) {
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;
this.trigger('searched', {
type,
definitions,
sentence,
cause,
textSource,
optionsContext
});
return {definitions, type};
}
_onParserChange(e) {
const value = e.target.value;
this._setSelectedParser(value);
}
_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 previewTerms = [];
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._selectedParser;
const select = this._queryParserGenerator.createParserSelect(this._parseResults, selectedParser);
select.addEventListener('change', this._onParserChange.bind(this));
this._queryParserSelect.appendChild(select);
}
}
_renderParseResult() {
const parseResult = this._getParseResult();
this._queryParser.textContent = '';
if (!parseResult) { return; }
this._queryParser.appendChild(this._queryParserGenerator.createParseResult(parseResult.content));
}
}
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