daux.io/libs/Tree/Content.php

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<?php namespace Todaymade\Daux\Tree;
use Webuni\FrontMatter\FrontMatter;
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class Content extends ContentAbstract
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{
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/** @var string */
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protected $content;
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/** @var Content */
protected $previous;
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/** @var Content */
protected $next;
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/** @var array */
protected $attributes;
/** @var bool */
protected $manuallySetContent = false;
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/**
* @return string
*/
public function getContent()
{
if (!$this->content && !$this->manuallySetContent) {
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$this->content = file_get_contents($this->getPath());
}
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if ($this->attributes === null) {
$this->parseAttributes();
}
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return $this->content;
}
/**
* @param string $content
*/
public function setContent($content)
{
$this->manuallySetContent = true;
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$this->content = $content;
}
/**
* @return Content
*/
public function getPrevious()
{
return $this->previous;
}
/**
* @param Content $previous
*/
public function setPrevious($previous)
{
$this->previous = $previous;
}
/**
* @return Content
*/
public function getNext()
{
return $this->next;
}
/**
* @param Content $next
*/
public function setNext($next)
{
$this->next = $next;
}
public function isIndex()
{
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// At some point, it was recommended that
// an index page starts with an underscore.
// This is not mandatory anymore, both with
// and without underscore are supported.
return $this->name == 'index' || $this->name == '_index';
}
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public function getTitle()
{
if ($title = $this->getAttribute('title')) {
return $title;
}
return parent::getTitle();
}
protected function parseAttributes()
{
// We set an empty array first to
// avoid a loop when "parseAttributes"
// is called in "getContent"
$this->attributes = [];
$frontMatter = new FrontMatter();
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$content = $this->getContent();
if (substr($content, 0, 3) == "\xef\xbb\xbf") {
$content = substr($content, 3);
}
$document = $frontMatter->parse($content);
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$this->attributes = array_replace_recursive($this->attributes, $document->getData());
$this->setContent($document->getContent());
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}
public function setAttributes(array $attributes)
{
$this->attributes = $attributes;
}
public function getAttribute($key = null)
{
if ($this->attributes === null) {
$this->parseAttributes();
}
if (is_null($key)) {
return $this->attributes;
}
if (!array_key_exists($key, $this->attributes)) {
return null;
}
return $this->attributes[$key];
}
public function dump()
{
$dump = parent::dump();
$dump['prev'] = $this->getPrevious() ? $this->getPrevious()->getUrl() : '';
$dump['next'] = $this->getNext() ? $this->getNext()->getUrl() : '';
return $dump;
}
}