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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2018 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace Fisharebest\Webtrees;
/**
* Simple view/template class.
*/
class View
{
/**
* @var string The (file) name of the view.
*/
private $name;
/**
* @var mixed[] Data to be inserted into the view.
*/
private $data;
/**
* @var mixed[] Data to be inserted into all views.
*/
private static $shared_data = [];
/**
* @var string Implementation of Blade "stacks".
*/
private static $stack;
/**
* @var array[] Implementation of Blade "stacks".
*/
private static $stacks = [];
/**
* Createa view from a template name and optional data.
*
* @param $name
* @param array $data
*/
public function __construct($name, $data = [])
{
$this->name = $name;
$this->data = $data;
}
/**
* Shared data that is available to all views.
*
* @param string $key
* @param mixed $value
*/
public static function share(string $key, $value)
{
self::$shared_data[$key] = $value;
}
/**
* Implementation of Blade "stacks".
*
* @see https://laravel.com/docs/5.5/blade#stacks
*
* @param string $stack
*/
public static function push(string $stack)
{
self::$stack = $stack;
ob_start();
}
/**
* Implementation of Blade "stacks".
*/
public static function endpush()
{
self::$stacks[self::$stack][] = ob_get_clean();
}
/**
* Implementation of Blade "stacks".
*
* @param string $stack
*
* @return string
*/
public static function stack(string $stack): string
{
$content = implode('', self::$stacks[$stack] ?? []);
self::$stacks[$stack] = [];
return $content;
}
/**
* Render a view.
*
* @return string
*/
public function render()
{
extract($this->data + self::$shared_data);
ob_start();
// Do not use require, so we can catch errors for missing files
include $this->getFilenameForView($this->name);
return ob_get_clean();
}
/**
* Allow a theme to override the default views.
*
* @param string $view_name
*
* @return string
*/
public static function getFilenameForView($view_name)
{
$view_file = '/resources/views/' . $view_name . '.php';
$theme_view = WT_ROOT . WT_THEMES_DIR . Theme::theme()->themeId() . $view_file;
if (is_file($theme_view)) {
return $theme_view;
} else {
return WT_ROOT . $view_file;
}
}
/**
* Cerate and render a view in a single operation.
*
* @param string $name
* @param mixed[] $data
*
* @return string
*/
public static function make($name, $data = [])
{
$view = new static($name, $data);
DebugBar::addView($name, $data);
return $view->render();
}
}
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