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Customizer Basics (Add Panel, Section, Setting, Control)

Add a Customizer Panel

<?php
/**
 * Panel: WPCustomize
 *
 * Basic Customizer panel with basic controls.
 *
 * @since    1.0.0
 * @package  WPC
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

// Customize function.
if ( ! function_exists( 'wpc_panel_wpcustomize' ) ) {
    // Customize Register action.
    add_action( 'customize_register', 'wpc_panel_wpcustomize' );
    /**
     * Customize Panel.
     *
     * Adds a Panel, Section with basic controls.
     *
     * @param  object WP_Customize $wp_customize Instance of the WP_Customize_Manager class.
     * @since  1.0.0
     */
    function wpc_panel_wpcustomize( $wp_customize ) {
        // Panel: Basic.
        $wp_customize->add_panel( 'wpc_panel_wpcustomize', array(
            'priority'       => 10,
            'title'          => __( 'WPCustomize Panel Title', 'WPC' ),
            'description'    => __( 'Panel Description', 'WPC' ),
            'capability'     => 'edit_theme_options'
        ) );
    }
}

Add a Customizer Section With Basic Settings and their Controls

Panels can have sections, sections can have settings, and settings can have controls. Settings are saved in the database, while the controls for particular settings are only used to display their corresponding setting to the user.

This code creates a basic section in the panel from above. Inside are a few basic settings with controls attached.

<?php
/**
 * Section: Basic
 *
 * Basic Customizer section with basic controls.
 *
 * @since     1.0.0
 * @package   WPC
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

// Customize function.
if ( ! function_exists( 'wpc_customize_panel_basic' ) ) {
    // Customize Register action.
    add_action( 'customize_register', 'wpc_customize_panel_basic' );

    /**
     * Customize Panel.
     *
     * Adds a Panel, Section with basic controls.
     *
     * @param  object WP_Customize $wp_customize Instance of the WP_Customize_Manager class.
     * @since  1.0.0
     */
    function wpc_customize_panel_basic( $wp_customize ) {
        // Section: Basic.
        $wp_customize->add_section( 'wpc_section_basic', array(
            'priority'       => 10,
            'panel'          => 'wpc_panel_wpcustomize',
            'title'          => __( 'Basic Section Title', 'WPC' ),
            'description'    => __( 'Section Description.', 'WPC' ),
            'capability'     => 'edit_theme_options'
        ) );

        // Setting: Text.
        $wp_customize->add_setting( 'wpc_text', array(
            'type'                 => 'theme_mod',
            'default'              => 'Placeholder.',
            'transport'            => 'refresh', // Options: refresh or postMessage.
            'capability'           => 'edit_theme_options',
            'sanitize_callback'    => 'esc_attr'
        ) );

        // Control: Text.
        $wp_customize->add_control( 'wpc_text', array(
            'label'       => __( 'Text', 'WPC' ),
            'description' => __( 'Description', 'WPC' ),
            'section'     => 'wpc_section_basic',
            'type'        => 'text'
        ) );

        // Setting: Textarea.
        $wp_customize->add_setting( 'wpc_textarea', array(
            'type'                 => 'theme_mod',
            'default'              => 'Placeholder textarea.',
            'transport'            => 'refresh', // Options: refresh or postMessage.
            'capability'           => 'edit_theme_options',
            'sanitize_callback'    => 'exc_textarea'
        ) );

        // Control: Textarea.
        $wp_customize->add_control( 'wpc_textarea', array(
            'label'       => __( 'Textarea', 'WPC' ),
            'description' => __( 'Description', 'WPC' ),
            'section'     => 'wpc_section_basic',
            'type'        => 'textarea'
        ) );

        // Setting: Checkbox.
        $wp_customize->add_setting( 'wpc_checkbox', array(
            'type'                 => 'theme_mod',
            'default'              => 'enable',
            'transport'            => 'refresh', // Options: refresh or postMessage.
            'capability'           => 'edit_theme_options',
            'sanitize_callback'    => 'wpc_sanitize_checkbox' // Custom function in customizer-sanitization.php file.
        ) );

        // Control: Checkbox.
        $wp_customize->add_control( 'wpc_checkbox', array(
            'label'       => __( 'Checkbox', 'WPC' ),
            'description' => __( 'Description', 'WPC' ),
            'section'     => 'wpc_section_basic',
            'type'        => 'checkbox'
        ) );

        // Setting: Radio.
        $wp_customize->add_setting( 'wpc_radio', array(
            'type'                 => 'theme_mod',
            'default'              => 'on',
            'transport'            => 'refresh', // Options: refresh or postMessage.
            'capability'           => 'edit_theme_options',
            'sanitize_callback'    => 'wpc_sanitize_select', // Custom function in customizer-sanitization.php file.
        ) );

        // Control: Radio.
        $wp_customize->add_control( 'wpc_radio', array(
            'label'       => __( 'Radio', 'WPC' ),
            'description' => __( 'Description', 'WPC' ),
            'section'     => 'wpc_section_basic',
            'type'        => 'radio',
            'choices'  => array(
                'enable'  => 'Enable',
                'disable' => 'Disable'
            )
        ) );

        // Setting: Select.
        $wp_customize->add_setting( 'wpc_select', array(
            'type'                 => 'theme_mod',
            'default'              => 'enable',
            'transport'            => 'refresh', // Options: refresh or postMessage.
            'capability'           => 'edit_theme_options',
            'sanitize_callback'    => 'wpc_sanitize_select' // Custom function in customizer-sanitization.php file.
        ) );

        // Control: Select.
        $wp_customize->add_control( 'wpc_select', array(
            'label'       => __( 'Select', 'WPC' ),
            'description' => __( 'Description', 'WPC' ),
            'section'     => 'wpc_section_basic',
            'type'        => 'select',
            'choices'  => array(
                'enable'  => 'Enable',
                'disable' => 'Disable'
            )
        ) );
    }
}

Contributors

Topic Id: 2930

Example Ids: 9937,9938

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