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/*
* Copyright (C) 2019 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
class QueryParser {
constructor(search) {
this.search = search;
this.pendingLookup = false;
this.clickScanPrevent = false;
this.queryParser = document.querySelector('#query-parser');
this.queryParser.addEventListener('mousedown', (e) => this.onMouseDown(e));
this.queryParser.addEventListener('mouseup', (e) => this.onMouseUp(e));
}
onError(error) {
logError(error, false);
}
onMouseDown(e) {
if (QueryParser.isMouseButton('primary', e)) {
this.clickScanPrevent = false;
}
}
onMouseUp(e) {
if (
this.search.options.scanning.clickGlossary &&
!this.clickScanPrevent &&
QueryParser.isMouseButton('primary', e)
) {
const selectText = this.search.options.scanning.selectText;
this.onTermLookup(e, {disableScroll: true, selectText});
}
}
onMouseMove(e) {
if (
this.pendingLookup ||
QueryParser.isMouseButton('primary', e)
) {
return;
}
const scanningOptions = this.search.options.scanning;
const scanningModifier = scanningOptions.modifier;
if (!(
QueryParser.isScanningModifierPressed(scanningModifier, e) ||
(scanningOptions.middleMouse && QueryParser.isMouseButton('auxiliary', e))
)) {
return;
}
const selectText = this.search.options.scanning.selectText;
this.onTermLookup(e, {disableScroll: true, disableHistory: true, selectText});
}
onMouseLeave(e) {
this.clickScanPrevent = true;
clearTimeout(e.target.dataset.timer);
delete e.target.dataset.timer;
}
onTermLookup(e, params) {
this.pendingLookup = true;
(async () => {
await this.search.onTermLookup(e, params);
this.pendingLookup = false;
})();
}
async setText(text) {
this.search.setSpinnerVisible(true);
await this.setPreview(text);
// const results = await apiTextParse(text, this.search.getOptionsContext());
const results = await apiTextParseMecab(text, this.search.getOptionsContext());
const content = await apiTemplateRender('query-parser.html', {
terms: results.map((term) => {
return term.filter(part => part.text.trim()).map((part) => {
return {
text: Array.from(part.text),
reading: part.reading,
raw: !part.reading || !part.reading.trim(),
};
});
})
});
this.queryParser.innerHTML = content;
this.queryParser.querySelectorAll('.query-parser-char').forEach((charElement) => {
this.activateScanning(charElement);
});
this.search.setSpinnerVisible(false);
}
async setPreview(text) {
const previewTerms = [];
while (text) {
const tempText = text.slice(0, 2);
previewTerms.push([{text: Array.from(tempText)}]);
text = text.slice(2);
}
this.queryParser.innerHTML = await apiTemplateRender('query-parser.html', {
terms: previewTerms,
preview: true
});
this.queryParser.querySelectorAll('.query-parser-char').forEach((charElement) => {
this.activateScanning(charElement);
});
}
activateScanning(element) {
element.addEventListener('mousemove', (e) => {
clearTimeout(e.target.dataset.timer);
if (this.search.options.scanning.modifier === 'none') {
e.target.dataset.timer = setTimeout(() => {
this.onMouseMove(e);
delete e.target.dataset.timer;
}, this.search.options.scanning.delay);
} else {
this.onMouseMove(e);
}
});
element.addEventListener('mouseleave', (e) => {
this.onMouseLeave(e);
});
}
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;
}
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;
}
}
static isMouseButton(button, mouseEvent) {
if (['mouseup', 'mousedown'].includes(mouseEvent.type)) {
switch (button) {
case 'primary': return mouseEvent.button === 0;
case 'secondary': return mouseEvent.button === 2;
case 'auxiliary': return mouseEvent.button === 1;
default: return false;
}
}
switch (button) {
case 'primary': return (mouseEvent.buttons & 0x1) !== 0x0;
case 'secondary': return (mouseEvent.buttons & 0x2) !== 0x0;
case 'auxiliary': return (mouseEvent.buttons & 0x4) !== 0x0;
default: return false;
}
}
}
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