<?php
/**
 * Alpha Color Picker Customizer Control
 *
 * This control adds a second slider for opacity to the stock WordPress color picker,
 * and it includes logic to seamlessly convert between RGBa and Hex color values as
 * opacity is added to or removed from a color.
 *
 * This Alpha Color Picker 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 Alpha Color Picker. If not, see <http://www.gnu.org/licenses/>.
 */

if (class_exists('WP_Customize_Control')) {

    class Customize_Alpha_Color_Control extends WP_Customize_Control
    {

        /**
         * Official control name.
         */
        public $type = 'alpha-color';

        /**
         * Add support for palettes to be passed in.
         *
         * Supported palette values are true, false, or an array of RGBa and Hex colors.
         */
        public $palette;

        /**
         * Add support for showing the opacity value on the slider handle.
         */
        public $show_opacity;

        /**
         * Enqueue scripts and styles.
         *
         * Ideally these would get registered and given proper paths before this control object
         * gets initialized, then we could simply enqueue them here, but for completeness as a
         * stand alone class we'll register and enqueue them here.
         */
        public function enqueue()
        {
            wp_enqueue_script(
                'alpha-color-picker',
                ATTIRE_TEMPLATE_URL . '/admin/custom-controls/alpha-color-picker/alpha-color-picker.js',
                array('jquery', 'wp-color-picker'),
                '1.0.0',
                true
            );
            wp_enqueue_style(
                'alpha-color-picker',
                ATTIRE_TEMPLATE_URL . '/admin/custom-controls/alpha-color-picker/alpha-color-picker.min.css',
                array('wp-color-picker'),
                '1.0.0'
            );
        }

        /**
         * Render the control.
         */
        public function render_content()
        {

            // Process the palette
            if (is_array($this->palette)) {
                $palette = implode('|', $this->palette);
            } else {
                // Default to true.
                $palette = (false === $this->palette || 'false' === $this->palette) ? 'false' : 'true';
            }

            // Support passing show_opacity as string or boolean. Default to true.
            $show_opacity = (false === $this->show_opacity || 'false' === $this->show_opacity) ? 'false' : 'true';

            // Begin the output.
            // Output the label and description if they were passed in.

            if (isset($this->label) && '' !== $this->label) {
                echo '<span class="customize-control-title">' . sanitize_text_field($this->label) . '</span>';
            }
            if (isset($this->description) && '' !== $this->description) {
                echo '<span class="description customize-control-description">' . sanitize_text_field($this->description) . '</span>';
            } ?>
            <input class="alpha-color-control" type="text" data-show-opacity="<?php echo $show_opacity; ?>"
                   data-palette="<?php echo esc_attr($palette); ?>"
                   data-default-color="<?php echo esc_attr($this->settings['default']->default); ?>" <?php $this->link(); ?> />
            <?php
        }
    }
}