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Fixed drawing handling on HTML to Markdown conversion

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This commit is contained in:
Dan Brown
2022-04-29 12:17:14 +01:00
parent d3b39fbe50
commit c8a7acb6c7
5 changed files with 55 additions and 3 deletions
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20
app/Entities/Tools/Markdown/CustomDivConverter.php Normal file
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@ -0,0 +1,20 @@
<?php
namespace BookStack\Entities\Tools\Markdown;
use League\HTMLToMarkdown\Converter\DivConverter;
use League\HTMLToMarkdown\ElementInterface;
class CustomDivConverter extends DivConverter
{
public function convert(ElementInterface $element): string
{
// Clean up draw.io diagrams
$drawIoDiagram = $element->getAttribute('drawio-diagram');
if ($drawIoDiagram) {
return "<div drawio-diagram=\"{$drawIoDiagram}\">{$element->getValue()}</div>\n\n";
}
return parent::convert($element);
}
}

24
app/Entities/Tools/Markdown/CustomImageConverter.php Normal file
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@ -0,0 +1,24 @@
<?php
namespace BookStack\Entities\Tools\Markdown;
use League\HTMLToMarkdown\Converter\ImageConverter;
use League\HTMLToMarkdown\ElementInterface;
class CustomImageConverter extends ImageConverter
{
public function convert(ElementInterface $element): string
{
$parent = $element->getParent();
// Remain as HTML if within diagram block.
$withinDrawing = $parent && !empty($parent->getAttribute('drawio-diagram'));
if ($withinDrawing) {
$src = e($element->getAttribute('src'));
$alt = e($element->getAttribute('alt'));
return "<img src=\"{$src}\" alt=\"{$alt}\"/>";
}
return parent::convert($element);
}
}

2
app/Entities/Tools/Markdown/CustomParagraphConverter.php
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@ -9,7 +9,7 @@ class CustomParagraphConverter extends ParagraphConverter
{
public function convert(ElementInterface $element): string
{
$class = $element->getAttribute('class');
$class = e($element->getAttribute('class'));
if (strpos($class, 'callout') !== false) {
return "<{$element->getTagName()} class=\"{$class}\">{$element->getValue()}</{$element->getTagName()}>\n\n";
}

4
app/Entities/Tools/Markdown/HtmlToMarkdown.php
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@ -75,12 +75,12 @@ class HtmlToMarkdown
$environment->addConverter(new BlockquoteConverter());
$environment->addConverter(new CodeConverter());
$environment->addConverter(new CommentConverter());
$environment->addConverter(new DivConverter());
$environment->addConverter(new CustomDivConverter());
$environment->addConverter(new EmphasisConverter());
$environment->addConverter(new HardBreakConverter());
$environment->addConverter(new HeaderConverter());
$environment->addConverter(new HorizontalRuleConverter());
$environment->addConverter(new ImageConverter());
$environment->addConverter(new CustomImageConverter());
$environment->addConverter(new LinkConverter());
$environment->addConverter(new ListBlockConverter());
$environment->addConverter(new ListItemConverter());