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66 lines
2.1 KiB
66 lines
2.1 KiB
/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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class CFormFieldsetCollapsible {
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static ZBX_STYLE_COLLAPSIBLE = 'collapsible';
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static ZBX_STYLE_COLLAPSED = 'collapsed';
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static ZBX_STYLE_TOGGLE = 'toggle';
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constructor(target) {
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this._target = target;
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this._toggle = this._target.querySelector(`.${CFormFieldsetCollapsible.ZBX_STYLE_TOGGLE}`);
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this._observed_fields = this._target.querySelectorAll(':scope > .form-field, :scope > .fields-group');
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this._init();
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}
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_init() {
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this._toggle.addEventListener('click', () => {
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const is_collapsed = this._target.classList.contains(CFormFieldsetCollapsible.ZBX_STYLE_COLLAPSED);
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this._target.classList.toggle(CFormFieldsetCollapsible.ZBX_STYLE_COLLAPSED, !is_collapsed);
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this._toggle.classList.toggle(ZBX_ICON_CHEVRON_DOWN, !is_collapsed);
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this._toggle.classList.toggle(ZBX_ICON_CHEVRON_UP, is_collapsed);
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this._toggle.setAttribute('title', is_collapsed ? t('S_COLLAPSE') : t('S_EXPAND'));
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});
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for (const element of this._observed_fields) {
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new ResizeObserver(() => this._update()).observe(element);
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}
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}
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_update() {
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let height = 0;
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for (const element of [...this._observed_fields].reverse()) {
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const rect = element.getBoundingClientRect();
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if (rect.height > 0) {
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height = rect.bottom - this._toggle.getBoundingClientRect().bottom + 4;
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break;
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}
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}
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this._target.style.setProperty('--fieldset-height', height + 'px');
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}
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}
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