podlove / podlove-subscribe-button-wp-plugin

podlove.php

<?php
/**
 * Plugin Name: Podlove Subscribe Button
 * Plugin URI:  http://wordpress.org/extend/plugins/podlove-subscribe-button/
 * Description: Brings the Podlove Subscribe Button to your WordPress installation.
 * Version:     1.3.4
 * Author:      Podlove
 * Author URI:  http://podlove.org
 * License:     MIT
 * License URI: license.txt
 * Text Domain: podlove-subscribe-button
 * Domain Path: /languages
 */

$correct_php_version = version_compare( phpversion(), "15.3", ">=" );

if ( ! $correct_php_version ) {
	printf( __( 'Podlove Subscribe Button Plugin requires %s or higher.<br>', 'podlove-subscribe-button' ), '<code>PHP 5.3</code>' );

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.

A gettext call containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

	echo '<br />';
	printf( __( 'You are running %s', 'podlove-subscribe-button' ), '<code>PHP ' . phpversion() . '</code>' );

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.

A gettext call containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'phpversion'.

	exit;
}

// Constants
require('constants.php');
require('settings/buttons.php');
// Models
require('model/base.php');
require('model/button.php');
require('model/network_button.php');
// Table
require('settings/buttons_list_table.php');
// Media Types
require('media_types.php');
// Widget
require('widget.php');
// Version control
require('version.php');
// Helper functions
require('helper.php');

add_action( 'admin_menu', array( 'PodloveSubscribeButton', 'admin_menu') );
if ( is_multisite() )
	add_action( 'network_admin_menu', array( 'PodloveSubscribeButton', 'admin_network_menu') );

add_action( 'admin_init', array( 'PodloveSubscribeButton\Settings\Buttons', 'process_form' ) );
register_activation_hook( __FILE__, array( 'PodloveSubscribeButton', 'build_models' ) );

// Register Settings
add_action( 'admin_init', function () {
	$settings = array('size', 'autowidth', 'style', 'format', 'color');

	foreach ($settings as $setting) {
		register_setting( 'podlove-subscribe-button', 'podlove_subscribe_button_default_' . $setting );
	}
} );

add_shortcode( 'podlove-subscribe-button', array( 'PodloveSubscribeButton', 'shortcode' ) );

add_action( 'plugins_loaded', function () {
	load_plugin_textdomain( 'podlove-subscribe-button', false, dirname(plugin_basename( __FILE__)) . '/languages/');
} );

PodloveSubscribeButton::run();


class PodloveSubscribeButton {

	public static function run() {
		add_action( 'admin_enqueue_scripts', array( __CLASS__, 'enqueue_assets' ) );
	}

	public static function enqueue_assets( $hook ) {

		$pages = array( 'settings_page_podlove-subscribe-button', 'widgets.php' );

		if ( ! in_array( $hook, $pages )  ) {
			return;
		}

		// CSS Stylesheet
		wp_register_style( 'podlove-subscribe-button', plugin_dir_url( __FILE__ ) . 'style.css', false, '1.3.3' );
		wp_enqueue_style( 'podlove-subscribe-button' );

		// Spectrum JS
		wp_enqueue_style( 'podlove-subscribe-button-spectrum', plugin_dir_url( __FILE__ ) . 'js/spectrum/spectrum.css', array(), '1.8.0' );
		wp_enqueue_script( 'podlove-subscribe-button-spectrum', plugin_dir_url( __FILE__ ) . 'js/spectrum/spectrum.js', array( 'jquery' ), '1.8.0' );

		// Admin JS
		wp_register_script( 'podlove-subscribe-button-admin-tools', plugin_dir_url( __FILE__ ) . 'js/admin.js', array( 'jquery' ), '1.3.3' );
		$js_translations = array(
			'select_color'  => __( 'Select Color', 'podlove-subscribe-button' ),
			'cancel'        => __( 'Cancel', 'podlove-subscribe-button' ),
			'media_library' => __( 'Media Library', 'podlove-subscribe-button' ),
			'use_for'       => __( 'Use for Podcast Cover Art', 'podlove-subscribe-button' ),
		);
		wp_localize_script( 'podlove-subscribe-button-admin-tools', 'i18n', $js_translations );
		wp_enqueue_script( 'podlove-subscribe-button-admin-tools' );
	}

	public static function admin_menu() {
		add_options_page(
				'Podlove Subscribe Button Options',
				'Podlove Subscribe Button',
				'manage_options',
				'podlove-subscribe-button',
				array( 'PodloveSubscribeButton\Settings\Buttons', 'page')
			);
	}

	public static function admin_network_menu() {
		add_submenu_page(
				'settings.php',
				'Podlove Subscribe Button Options',
				'Podlove Subscribe Button',
				'manage_options',
				'podlove-subscribe-button',
				array( 'PodloveSubscribeButton\Settings\Buttons', 'page')
			);
	}

	public static function build_models() {
		// Build Databases
		\PodloveSubscribeButton\Model\Button::build();
		if ( is_multisite() )
			\PodloveSubscribeButton\Model\NetworkButton::build();

		// Set Button "default" values
		$default_values = array(
				'size' => 'big',
				'autowidth' => 'on',
				'color' => '#599677',
				'style' => 'filled',
				'format' => 'rectangle'
			);

		foreach ($default_values as $option => $default_value) {
			if ( ! get_option('podlove_subscribe_button_default_' . $option ) ) {
				update_option('podlove_subscribe_button_default_' . $option, $default_value);
			}
		}
	}

	public static function shortcode( $args ) {
		if ( ! $args || ! isset($args['button']) ) {
			return __('You need to create a Button first and provide its ID.', 'podlove-subscribe-button');
		} else {
			$buttonid = $args['button'];
		}

		// Fetch the (network)button by it's name
		if ( ! $button = \PodloveSubscribeButton\Model\Button::get_button_by_name($args['button']) )
			return sprintf( __('Oops. There is no button with the ID "%s".', 'podlove-subscribe-button'), $args['button'] );

		// Get button styling and options
		$autowidth = self::interpret_width_attribute( self::get_array_value_with_fallback($args, 'width') );
		$size = self::get_attribute( 'size', self::get_array_value_with_fallback($args, 'size') );
		$style = self::get_attribute( 'style', self::get_array_value_with_fallback($args, 'style') );
		$format = self::get_attribute( 'format', self::get_array_value_with_fallback($args, 'format') );
		$color = self::get_attribute( 'color', self::get_array_value_with_fallback($args, 'color') );

		if ( isset($args['language']) ) {
			$language = $args['language'];
		} else {
			$language = 'en';
		}

		if ( isset($args['color']) ) {
			$color = $args['color'];
		} else {
			$color = get_option('podlove_subscribe_button_default_color', '#599677');
		}

		if ( isset($args['hide']) && $args['hide'] == 'true' ) {
			$hide = true;
		} else {
			$hide = false;
		}

		// Render button
		return $button->render($size, $autowidth, $style, $format, $color, $hide, $buttonid, $language);
	}

	public static function get_array_value_with_fallback($args, $key) {
		if ( isset($args[$key]) )
			return $args[$key];

		return false;
	}

	/**
	 * @param  string $attribute
	 * @param  string $attribute_value
	 * @return string
	 */
	private static function get_attribute($attribute=null, $attribute_value=null) {
		if ( isset($attribute_value) && ctype_alnum($attribute_value) && key_exists( $attribute_value, \PodloveSubscribeButton\Model\Button::$$attribute ) ) {
			return $attribute_value;
		} else {
			return get_option('podlove_subscribe_button_default_' . $attribute, \PodloveSubscribeButton\Model\Button::$properties[$attribute]);
		}
	}

	/**
	 * Interprets the provided width attribute and return either auto- or a specific width
	 * @param  string $width_attribute
	 * @return string
	 */
	private static function interpret_width_attribute( $width_attribute = null ) {
		if ( $width_attribute == 'auto' )
			return 'on';
		if ( $width_attribute && $width_attribute !== 'auto' )
			return 'off';

		return get_option('podlove_subscribe_button_default_autowidth', 'on');
	}
}