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/*
* Copyright (C) 2020 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 TemplateHandler {
constructor(html) {
this._templates = new Map();
const doc = new DOMParser().parseFromString(html, 'text/html');
for (const template of doc.querySelectorAll('template')) {
this._setTemplate(template);
}
}
_setTemplate(template) {
const idMatch = template.id.match(/^([a-z-]+)-template$/);
if (!idMatch) {
throw new Error(`Invalid template ID: ${template.id}`);
}
this._templates.set(idMatch[1], template);
}
instantiate(name) {
const template = this._templates.get(name);
return document.importNode(template.content.firstChild, true);
}
instantiateFragment(name) {
const template = this._templates.get(name);
return document.importNode(template.content, true);
}
}
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