<?php
namespace MailPoet\Newsletter\Renderer\Blocks;
if (!defined('ABSPATH')) exit;
use MailPoet\Newsletter\Editor\PostContentManager;
use MailPoet\Newsletter\Renderer\EscapeHelper as EHelper;
use MailPoet\Newsletter\Renderer\StylesHelper;
use MailPoet\Util\pQuery\pQuery;
class Text {
public function render($element) {
$html = $element['text'];
// replace with spaces
$html = str_replace(' ', ' ', $html);
$html = str_replace('\xc2\xa0', ' ', $html);
$html = $this->convertBlockquotesToTables($html);
$html = $this->convertParagraphsToTables($html);
$html = $this->styleLists($html);
$html = $this->styleHeadings($html);
$html = $this->removeLastLineBreak($html);
$template = '
<tr>
<td class="mailpoet_text mailpoet_padded_vertical mailpoet_padded_side" valign="top" style="word-break:break-word;word-wrap:break-word;">
' . $html . '
</td>
</tr>';
return $template;
}
public function convertBlockquotesToTables($html) {
$dOMParser = new pQuery();
$DOM = $dOMParser->parseStr($html);
$blockquotes = $DOM->query('blockquote');
foreach ($blockquotes as $blockquote) {
$contents = [];
$paragraphs = $blockquote->query('p, h1, h2, h3, h4', 0);
foreach ($paragraphs as $index => $paragraph) {
if (preg_match('/h\d/', $paragraph->getTag())) {
$contents[] = $paragraph->getOuterText();
} else {
$contents[] = str_replace('&', '&', $paragraph->html());
}
if ($index + 1 < $paragraphs->count()) $contents[] = '<br />';
$paragraph->remove();
}
if (empty($contents)) continue;
$blockquote->setTag('table');
$blockquote->addClass('mailpoet_blockquote');
$blockquote->width = '100%';
$blockquote->spacing = 0;
$blockquote->border = 0;
$blockquote->cellpadding = 0;
$blockquote->html('
<tbody>
<tr>
<td width="2" bgcolor="#565656"></td>
<td width="10"></td>
<td valign="top">
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="border-spacing:0;mso-table-lspace:0;mso-table-rspace:0">
<tr>
<td class="mailpoet_blockquote">
' . implode('', $contents) . '
</td>
</tr>
</table>
</td>
</tr>
</tbody>'
);
$blockquote = $this->insertLineBreak($blockquote);
}
return $DOM->__toString();
}
public function convertParagraphsToTables($html) {
$dOMParser = new pQuery();
$DOM = $dOMParser->parseStr($html);
$paragraphs = $DOM->query('p');
if (!$paragraphs->count()) return $html;
foreach ($paragraphs as $paragraph) {
// process empty paragraphs
if (!trim($paragraph->html())) {
$nextElement = ($paragraph->getNextSibling()) ?
trim($paragraph->getNextSibling()->text()) :
false;
$previousElement = ($paragraph->getPreviousSibling()) ?
trim($paragraph->getPreviousSibling()->text()) :
false;
$previousElementTag = ($previousElement) ?
$paragraph->getPreviousSibling()->tag :
false;
// if previous or next paragraphs are empty OR previous paragraph
// is a heading, insert a break line
if (
!$nextElement ||
!$previousElement ||
(preg_match('/h\d+/', $previousElementTag))
) {
$paragraph = $this->insertLineBreak($paragraph);
}
$paragraph->remove();
continue;
}
$style = (string)$paragraph->style;
if (!preg_match('/text-align/i', $style)) {
$style = 'text-align: left;' . $style;
}
$contents = str_replace('&', '&', $paragraph->html());
$paragraph->setTag('table');
$paragraph->style = 'border-spacing:0;mso-table-lspace:0;mso-table-rspace:0;';
$paragraph->width = '100%';
$paragraph->cellpadding = 0;
$nextElement = $paragraph->getNextSibling();
// unless this is the last element in column, add double line breaks
$lineBreaks = ($nextElement && !trim($nextElement->text())) ?
'<br /><br />' :
'';
// if this element is followed by a list, add single line break
$lineBreaks = ($nextElement && preg_match('/<li/i', $nextElement->getOuterText())) ?
'<br />' :
$lineBreaks;
if ($paragraph->hasClass(PostContentManager::WP_POST_CLASS)) {
$paragraph->removeClass(PostContentManager::WP_POST_CLASS);
// if this element is followed by a paragraph or heading, add double line breaks
$lineBreaks = ($nextElement && preg_match('/<(p|h[1-6]{1})/i', $nextElement->getOuterText())) ?
'<br /><br />' :
$lineBreaks;
}
$paragraph->html('
<tr>
<td class="mailpoet_paragraph" style="word-break:break-word;word-wrap:break-word;' . EHelper::escapeHtmlStyleAttr($style) . '">
' . $contents . $lineBreaks . '
</td>
</tr>'
);
}
return $DOM->__toString();
}
public function styleLists($html) {
$dOMParser = new pQuery();
$DOM = $dOMParser->parseStr($html);
$lists = $DOM->query('ol, ul, li');
if (!$lists->count()) return $html;
foreach ($lists as $list) {
if ($list->tag === 'li') {
$list->setInnertext(str_replace('&', '&', $list->html()));
$list->class = 'mailpoet_paragraph';
} else {
$list->class = 'mailpoet_paragraph';
$list->style = StylesHelper::joinStyles($list->style, 'padding-top:0;padding-bottom:0;margin-top:10px;');
}
$list->style = StylesHelper::applyTextAlignment($list->style);
$list->style = StylesHelper::joinStyles($list->style, 'margin-bottom:10px;');
$list->style = EHelper::escapeHtmlStyleAttr($list->style);
}
return $DOM->__toString();
}
public function styleHeadings($html) {
$dOMParser = new pQuery();
$DOM = $dOMParser->parseStr($html);
$headings = $DOM->query('h1, h2, h3, h4');
if (!$headings->count()) return $html;
foreach ($headings as $heading) {
$heading->style = StylesHelper::applyTextAlignment($heading->style);
$heading->style = StylesHelper::joinStyles($heading->style, 'padding:0;font-style:normal;font-weight:normal;');
$heading->style = EHelper::escapeHtmlStyleAttr($heading->style);
}
return $DOM->__toString();
}
public function removeLastLineBreak($html) {
return preg_replace('/(^)?(<br[^>]*?\/?>)+$/i', '', $html);
}
public function insertLineBreak($element) {
$element->parent->insertChild(
[
'tag_name' => 'br',
'self_close' => true,
'attributes' => [],
],
$element->index() + 1
);
return $element;
}
}