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60 lines
1.8 KiB
60 lines
1.8 KiB
<?php
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/*
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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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/**
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* Class containing methods for operations with widget iterators.
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*/
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abstract class CControllerWidgetIterator extends CControllerDashboardWidgetView {
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protected function init(): void {
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parent::init();
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$this->addValidationRules([
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'page' => 'required|ge 1'
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]);
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}
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/**
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* Get realistic page number for given number of child widgets.
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*/
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protected function getIteratorPage(int $num_widgets): int {
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return max(1, min((int) $this->getInput('page'), $this->getIteratorPageCount($num_widgets)));
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}
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/**
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* Get number of child widgets to show on a single page.
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*/
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protected function getIteratorPageSize(): int {
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$fields_data = $this->getForm()->getFieldsValues();
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return min($fields_data['rows'] * $fields_data['columns'],
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floor(DASHBOARD_MAX_COLUMNS * DASHBOARD_WIDGET_MAX_ROWS / DASHBOARD_WIDGET_MIN_ROWS)
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);
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}
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/**
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* Get number of pages for given number of child widgets.
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*/
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protected function getIteratorPageCount(int $num_widgets): int {
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return (floor(max(0, $num_widgets - 1) / $this->getIteratorPageSize()) + 1);
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}
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}
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