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<?php
/** For old style coders */
function tnp_register_block($dir) {
return TNP_Composer::register_block($dir);
}
/**
* Generates and HTML button for email using the values found on $options and
* prefixed by $prefix, with the standard syntax of NewsletterFields::button().
*
* @param array $options
* @param string $prefix
* @return string
*/
function tnpc_button($options, $prefix = 'button') {
return TNP_Composer::button($options, $prefix);
}
class TNP_Composer {
static $block_dirs = array();
static function register_block($dir) {
// Checks
if (!file_exists($dir . '/block.php')) {
$error = new WP_Error('1', 'block.php missing on folder ' . $dir);
NewsletterEmails::instance()->logger->error($error);
return $error;
}
self::$block_dirs[] = $dir;
return true;
}
/**
* @param string $open
* @param string $inner
* @param string $close
* @param string[] $markers
*
* @return string
*/
static function wrap_html_element($open, $inner, $close, $markers = array('<!-- tnp -->', '<!-- /tnp -->')) {
return $open . $markers[0] . $inner . $markers[1] . $close;
}
/**
* @param string $block
* @param string[] $markers
*
* @return string
*/
static function unwrap_html_element($block, $markers = array('<!-- tnp -->', '<!-- /tnp -->')) {
if (self::_has_markers($block, $markers)) {
self::_escape_markers($markers);
$pattern = sprintf('/%s(.*?)%s/s', $markers[0], $markers[1]);
$matches = array();
preg_match($pattern, $block, $matches);
return $matches[1];
}
return $block;
}
/**
* @param string $block
* @param string[] $markers
*
* @return bool
*/
private static function _has_markers($block, $markers = array('<!-- tnp -->', '<!-- /tnp -->')) {
self::_escape_markers($markers);
$pattern = sprintf('/%s(.*?)%s/s', $markers[0], $markers[1]);
return preg_match($pattern, $block);
}
static function get_html_open($email) {
$open = "<!DOCTYPE html>\n";
$open .= "<html>\n<head>\n<title>{email_subject}</title>\n";
$open .= "<meta charset=\"utf-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n";
$open .= "<meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n";
$open .= "<style type=\"text/css\">\n";
$open .= NewsletterEmails::instance()->get_composer_css();
$open .= "\n</style>\n";
$open .= "</head>\n";
$open .= '<body style="margin: 0; padding: 0;" dir="' . (is_rtl() ? 'rtl' : 'ltr') . '">';
$open .= "\n";
$open .= self::get_html_preheader( $email );
return $open;
}
static private function get_html_preheader( $email ) {
if ( empty ( $email->options['preheader'] ) ) {
return "";
}
$preheader_text = $email->options['preheader'];
$html = "<div style=\"display:none;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;max-width:0px;opacity:0;overflow:hidden;\">$preheader_text</div>";
$html .= "\n";
return $html;
}
static function get_html_close($email) {
return "</body>\n</html>";
}
/**
*
* @param TNP_Email $email
* @return string
*/
static function get_main_wrapper_open($email) {
if (!isset($email->options['composer_background']) || $email->options['composer_background'] == 'inherit') {
$bgcolor = '';
} else {
$bgcolor = $email->options['composer_background'];
}
return "\n<table cellpadding='0' cellspacing='0' border='0' width='100%'>\n" .
"<tr>\n" .
"<td bgcolor='$bgcolor' valign='top'><!-- tnp -->";
}
/**
*
* @param TNP_Email $email
* @return string
*/
static function get_main_wrapper_close($email) {
return "\n<!-- /tnp -->\n" .
"</td>\n" .
"</tr>\n" .
"</table>\n\n";
}
/**
* Remove <doctype>, <body> and unnecessary envelopes for editing with composer
*
* @param string $html_email
*
* @return string
*/
static function unwrap_email($html_email) {
if (self::_has_markers($html_email)) {
$html_email = self::unwrap_html_element($html_email);
} else {
//KEEP FOR OLD EMAIL COMPATIBILITY
// Extracts only the body part
$x = strpos($html_email, '<body');
if ($x) {
$x = strpos($html_email, '>', $x);
$y = strpos($html_email, '</body>');
$html_email = substr($html_email, $x + 1, $y - $x - 1);
}
/* Cleans up uncorrectly stored newsletter bodies */
$html_email = preg_replace('/<style\s+.*?>.*?<\\/style>/is', '', $html_email);
$html_email = preg_replace('/<meta.*?>/', '', $html_email);
$html_email = preg_replace('/<title\s+.*?>.*?<\\/title>/i', '', $html_email);
$html_email = trim($html_email);
}
// Required since esc_html DOES NOT escape the HTML entities (apparently)
$html_email = str_replace('&', '&', $html_email);
$html_email = str_replace('"', '"', $html_email);
$html_email = str_replace('<', '<', $html_email);
$html_email = str_replace('>', '>', $html_email);
return $html_email;
}
private static function _escape_markers(&$markers) {
$markers[0] = str_replace('/', '\/', $markers[0]);
$markers[1] = str_replace('/', '\/', $markers[1]);
}
/**
* Using the data collected inside $controls (and submitted by a form containing the
* composer fields), updates the email. The message body is completed with doctype,
* head, style and the main wrapper.
*
* @param TNP_Email $email
* @param NewsletterControls $controls
*/
static function update_email($email, $controls) {
if (isset($controls->data['subject'])) {
$email->subject = $controls->data['subject'];
}
// They should be only composer options
foreach ($controls->data as $name => $value) {
if (strpos($name, 'options_') === 0) {
$email->options[substr($name, 8)] = $value;
}
}
$email->editor = NewsletterEmails::EDITOR_COMPOSER;
$email->message = self::get_html_open($email) . self::get_main_wrapper_open($email) .
$controls->data['message'] . self::get_main_wrapper_close($email) . self::get_html_close($email);
}
/**
* Prepares a controls object injecting the relevant fields from an email
* which cannot be directly used by controls.
*
* @param Newsletter $controls
* @param TNP_Email $email
*/
static function prepare_controls($controls, $email) {
foreach ($email->options as $name => $value) {
//if (strpos($name, 'composer_') === 0) {
$controls->data['options_' . $name] = $value;
//}
}
$controls->data['message'] = TNP_Composer::unwrap_email($email->message);
$controls->data['subject'] = $email->subject;
}
/**
* Extract inline edited post field from inline_edit_list[]
*
* @param array $inline_edit_list
* @param string $field_type
* @param int $post_id
*
* @return string
*/
static function get_edited_inline_post_field($inline_edit_list, $field_type, $post_id) {
foreach ($inline_edit_list as $edit) {
if ($edit['type'] == $field_type && $edit['post_id'] == $post_id) {
return $edit['content'];
}
}
return '';
}
/**
* Check if inline_edit_list[] have inline edit field for specific post
*
* @param array $inline_edit_list
* @param string $field_type
* @param int $post_id
*
* @return bool
*/
static function is_post_field_edited_inline($inline_edit_list, $field_type, $post_id) {
if (empty($inline_edit_list))
return false;
foreach ($inline_edit_list as $edit) {
if ($edit['type'] == $field_type && $edit['post_id'] == $post_id) {
return true;
}
}
return false;
}
/**
* Creates the HTML for a button extrating from the options, with the provided prefix, the button attributes:
*
* - [prefix]_url The button URL
* - [prefix]_font_family
* - [prefix]_font_size
* - [prefix]_font_weight
* - [prefix]_label
* - [prefix]_font_color The label color
* - [prefix]_background The button color
*
* TODO: Add radius and possiblt the alignment
*
* @param array $options
* @param string $prefix
* @return string
*/
static function button($options, $prefix = 'button') {
$defaults = [
$prefix . '_url' => '#',
$prefix . '_font_family' => 'Helvetica, Arial, sans-serif',
$prefix . '_label' => 'Click Here',
$prefix . '_font_color' => '#ffffff',
$prefix . '_font_weight' => 'bold',
$prefix . '_font_size' => 20,
$prefix . '_background' => '#256F9C',
];
$options = array_merge($defaults, $options);
$b = '<table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:separate;line-height:100%;">';
$b .= '<tr>';
$b .= '<td align="center" bgcolor="' . $options[$prefix . '_background'] . '" role="presentation" style="border:none;border-radius:3px;cursor:auto;mso-padding-alt:10px 25px;background:' . $options[$prefix . '_background'] . '" valign="middle">';
$b .= '<a href="' . $options[$prefix . '_url'] . '"';
$b .= ' style="display:inline-block;background:' . $options[$prefix . '_background'] . ';color:' . $options[$prefix . '_font_color'] . ';font-family:' . $options[$prefix . '_font_family'] . ';font-size:' . $options[$prefix . '_font_size'] . 'px;font-weight:' . $options[$prefix . '_font_weight'] . ';line-height:120%;margin:0;text-decoration:none;text-transform:none;padding:10px 25px;mso-padding-alt:0px;border-radius:3px;"';
$b .= ' target="_blank">';
$b .= $options[$prefix . '_label'];
$b .= '</a>';
$b .= '</td></tr></table>';
return $b;
}
/**
* Generates an IMG tag, linked if the media has an URL.
*
* @param TNP_Media $media
* @param string $style
* @return string
*/
static function image($media, $attr = []) {
$default_attrs = [
'style' => 'max-width: 100%; height: auto;',
'class' => null,
'link-style' => 'text-decoration: none;',
'link-class' => null,
];
$attr = array_merge($default_attrs, $attr);
//Class and style attribute are mutually exclusive.
//Class take priority to style because classes will transform to inline style inside block rendering operation
if ( ! empty( $attr['class'] ) ) {
$styling = ' inline-class="' . $attr['class'] . '" ';
} else {
$styling = ' style="' . $attr['style'] . '" ';
}
//Class and style attribute are mutually exclusive.
//Class take priority to style because classes will transform to inline style inside block rendering operation
if ( ! empty( $attr['link-class'] ) ) {
$link_styling = ' inline-class="' . $attr['link-class'] . '" ';
} else {
$link_styling = ' style="' . $attr['link-style'] . '" ';
}
$b = '';
if ( $media->link ) {
$b .= '<a href="' . $media->link . '" target="_blank" rel="noopener nofollow" ' . $link_styling . '>';
}
if ( $media ) {
$b .= '<img src="' . $media->url . '" width="' . $media->width . '"'
. ' height="' . $media->height . '"'
. ' alt="' . esc_attr( $media->alt ) . '"'
. ' border="0" ' . $styling . '>';
}
if ($media->link) {
$b .= '</a>';
}
return $b;
}
/**
* Returns a WP media ID for the specified post (or false if nothing can be found)
* looking for the featured image or, if missing, taking the first media in the gallery and
* if again missing, searching the first reference to a media in the post content.
*
* @param int $post_id
* @return int
*/
static function get_post_thumbnail_id($post_id) {
if (is_object($post_id)) {
$post_id = $post_id->ID;
}
// Find a media id to be used as featured image
$media_id = get_post_thumbnail_id($post_id);
if (!empty($media_id)) {
return $media_id;
}
$attachments = get_children(array('numberpost' => 1, 'post_parent' => $post_id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order'));
if (!empty($attachments)) {
foreach ($attachments as $id => &$attachment) {
return $id;
}
}
$post = get_post($post_id);
$r = preg_match('/wp-image-(\d+)/', $post->post_content, $matches);
if ($matches) {
return (int) $matches[1];
}
return false;
}
}
/**
* Generate multicolumn and responsive html template for email.
* Initialize class with max columns per row and start to add cells.
*/
class TNP_Composer_Grid_System {
/**
* @var TNP_Composer_Grid_Row[]
*/
private $rows;
/**
* @var int
*/
private $cells_per_row;
/**
* @var int
*/
private $cells_counter;
/**
* TNP_Composer_Grid_System constructor.
*
* @param int $columns_per_row Max columns per row
*/
public function __construct($columns_per_row) {
$this->cells_per_row = $columns_per_row;
$this->cells_counter = 0;
$this->rows = [];
}
public function __toString() {
return $this->render();
}
/**
* Add cell to grid
*
* @param TNP_Composer_Grid_Cell $cell
*/
public function add_cell($cell) {
if ($this->cells_counter % $this->cells_per_row === 0) {
$this->add_row(new TNP_Composer_Grid_Row());
}
$row_idx = (int) floor($this->cells_counter / $this->cells_per_row);
$this->rows[$row_idx]->add_cell($cell);
$this->cells_counter++;
}
private function add_row($row) {
$this->rows[] = $row;
}
public function render() {
$str = '';
foreach ($this->rows as $row) {
$str .= $row->render();
}
return $str;
}
}
/**
* Class TNP_Composer_Grid_Row
*/
class TNP_Composer_Grid_Row {
/**
* @var TNP_Composer_Grid_Cell[]
*/
private $cells;
public function __construct(...$cells) {
if (!empty($cells)) {
foreach ($cells as $cell) {
$this->add_cell($cell);
}
}
}
/**
* @param TNP_Composer_Grid_Cell $cell
*/
public function add_cell($cell) {
$this->cells[] = $cell;
}
public function render() {
$rendered_cells = '';
$column_percentage_width = round(100 / $this->cells_count(), 0, PHP_ROUND_HALF_DOWN) . '%';
foreach ($this->cells as $cell) {
$rendered_cells .= $cell->render(['width' => $column_percentage_width]);
}
$row_template = $this->get_template();
return str_replace('TNP_ROW_CONTENT_PH', $rendered_cells, $row_template);
}
private function cells_count() {
return count($this->cells);
}
private function get_template() {
return "<table border='0'
cellpadding='0'
cellspacing='0'
width='100%'>
<tbody>
<tr>
<td>
TNP_ROW_CONTENT_PH
</td>
</tr>
</tbody>
</table>";
}
}
/**
* Class TNP_Composer_Grid_Cell
*/
class TNP_Composer_Grid_Cell {
/**
* @var string
*/
private $content;
/**
* @var array
*/
public $args;
public function __construct($content = null, $args = []) {
$default_args = [
'width' => '100%',
'class' => '',
'align' => 'left',
'valign' => 'top'
];
$this->args = array_merge($default_args, $args);
$this->content = $content ? $content : '';
}
public function add_content($content) {
$this->content .= $content;
}
public function render($args) {
$this->args = array_merge($this->args, $args);
$column_template = $this->get_template();
$column = str_replace(
[
'TNP_ALIGN_PH',
'TNP_VALIGN_PH',
'TNP_WIDTH_PH',
'TNP_CLASS_PH',
'TNP_COLUMN_CONTENT_PH'
], [
$this->args['align'],
$this->args['valign'],
$this->args['width'],
$this->args['class'],
$this->content
], $column_template);
return $column;
}
private function get_template() {
return "<table border='0'
cellpadding='0'
cellspacing='0'
width='TNP_WIDTH_PH'
align='left'
class='responsive-table'>
<tbody>
<tr>
<td border='0'
style='padding: 20px 10px 40px;'
align='TNP_ALIGN_PH'
valign='TNP_VALIGN_PH'
class='TNP_CLASS_PH'>
TNP_COLUMN_CONTENT_PH
</td>
</tr>
</tbody>
</table>";
}
}