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Add link() and setCanonicalUrl() methods to the WebAppView

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These make it easier for controllers to define relationships from
the current to other pages, which is important for SEO mostly.
This commit is contained in:
Franz Liedke 2017-03-13 18:08:32 +01:00
parent 5d62231004
commit 231d018de5
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GPG Key ID: 9A0231A879B055F4
1 changed files with 44 additions and 1 deletions
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45
src/Http/WebApp/WebAppView.php
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@ -107,6 +107,13 @@ class WebAppView
*/
protected $foot = [];
/**
* A map of <link> tags to be generated.
*
* @var array
*/
protected $links = [];
/**
* @var CompilerInterface
*/
@ -219,6 +226,31 @@ class WebAppView
$this->foot[] = $string;
}
/**
* Configure a <link> tag.
*
* @param string $relation
* @param string $target
*/
public function link($relation, $target)
{
$this->links[$relation] = $target;
}
/**
* Configure the canonical URL for this page.
*
* This will signal to search engines what URL should be used for this
* content, if it can be found under multiple addresses. This is an
* important tool to tackle duplicate content.
*
* @param string $url
*/
public function setCanonicalUrl($url)
{
$this->link('canonical', $url);
}
/**
* Set a variable to be preloaded into the app.
*
@ -271,7 +303,7 @@ class WebAppView
$view->cssUrls = $this->buildCssUrls($baseUrl);
$view->jsUrls = $this->buildJsUrls($baseUrl);
$view->head = implode("\n", $this->head);
$view->head = $this->buildHeadContent();
$view->foot = implode("\n", $this->foot);
return $view->render();
@ -337,6 +369,17 @@ class WebAppView
}, array_filter($files));
}
protected function buildHeadContent()
{
$html = implode("\n", $this->head);
foreach ($this->links as $rel => $href) {
$html .= "\n<link rel=\"$rel\" href=\"$href\" />";
}
return $html;
}
/**
* @return CompilerInterface
*/