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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle 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 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Dash - Form element for color picker.
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*
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* @package block_dash
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* @copyright 2021 bdecent gmbh <https://bdecent.de>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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require_once('HTML/QuickForm/input.php');
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require_once($CFG->dirroot.'/lib/form/templatable_form_element.php');
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require_once($CFG->dirroot.'/lib/form/text.php');
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/**
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* Form element for color picker.
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*
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* @package block_dash
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* @copyright 2021 bdecent gmbh <https://bdecent.de>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class moodlequickform_dashgradientpicker extends MoodleQuickForm_text implements templatable {
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use templatable_form_element {
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export_for_template as export_for_template_base;
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}
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/**
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* Constructor.
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*
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* @param string $elementname (optional) Name of the text field.
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* @param string $elementlabel (optional) Text field label.
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* @param string $attributes (optional) Either a typical HTML attribute string or an associative array.
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*/
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public function __construct($elementname=null, $elementlabel=null, $attributes=null) {
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parent::__construct($elementname, $elementlabel, $attributes);
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$this->setType('text');
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// Add a CSS class for styling the color picker.
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$class = $this->getAttribute('class');
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if (empty($class)) {
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$class = '';
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}
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$this->updateAttributes(['class' => $class.' block_dash-form-gradient-picker']);
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}
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/**
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* Export for template.
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*
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* @param renderer_base $output
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* @return array|stdClass
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*/
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public function export_for_template(renderer_base $output) {
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global $PAGE;
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// Compose template context for the mform element.
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$context = $this->export_for_template_base($output);
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$PAGE->requires->js_amd_inline('require(["jquery", "block_dash/gradient"], function($) {
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var background = document.querySelectorAll("input[name=config_backgroundgradient]")[0];
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if (background) {
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new lc_color_picker(background, {
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modes : ["linear-gradient", "solid"],
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});
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}
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})'
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);
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return $context;
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}
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}
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