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<?php |
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/* |
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* This file is part of the ICanBoogie package. |
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* |
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* (c) Olivier Laviale <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ICanBoogie\Render; |
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/** |
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* Renders a target or an array of options. |
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*/ |
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class Renderer |
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{ |
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const OPTION_LAYOUT = 'layout'; |
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const OPTION_PARTIAL = 'partial'; |
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const OPTION_TEMPLATE = 'template'; |
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const OPTION_CONTENT = 'content'; |
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const OPTION_LOCALS = 'locals'; |
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/** |
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* @var EngineCollection |
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*/ |
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private $engines; |
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/** |
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* @var TemplateResolver |
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*/ |
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protected $template_resolver; |
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/** |
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* @param TemplateResolver $template_resolver |
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* @param EngineCollection $engines |
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*/ |
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public function __construct(TemplateResolver $template_resolver, EngineCollection $engines) |
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{ |
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$this->template_resolver = $template_resolver; |
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$this->engines = $engines; |
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} |
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/** |
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* Resolve a template pathname from its name and type. |
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* |
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* @param string $name |
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* |
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* @return string Template pathname. |
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* |
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* @throws TemplateNotFound if the template pathname cannot be resolved. |
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*/ |
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public function resolve_template($name) |
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{ |
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$template_pathname = $this->template_resolver->resolve($name, $this->engines->extensions, $tried); |
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if (!$template_pathname) |
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{ |
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throw new TemplateNotFound("There is no template matching `$name`.", $tried ?: []); |
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} |
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return $template_pathname; |
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} |
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/** |
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* Renders a target or options. |
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* |
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* @param mixed $target_or_options The target or options to render. |
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* @param array $additional_options Additional render options. |
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* |
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* @return string |
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*/ |
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public function render($target_or_options, array $additional_options = []) |
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{ |
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if (!$target_or_options && !$additional_options) |
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{ |
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return null; |
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} |
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$options = $this->resolve_options($target_or_options, $additional_options); |
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$content = $options[self::OPTION_CONTENT]; |
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$variables = $options[self::OPTION_LOCALS]; |
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# |
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$template = $options[self::OPTION_PARTIAL]; |
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if ($template) |
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{ |
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$content = $this->render_partial($template, $content, $variables); |
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} |
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$template = $options[self::OPTION_TEMPLATE]; |
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if ($template) |
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{ |
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$content = $this->render_template($template, $content, $variables); |
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} |
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$template = $options[self::OPTION_LAYOUT]; |
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if ($template) |
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{ |
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$content = $this->render_layout($template, [ self::OPTION_CONTENT => $content ] + $variables); |
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} |
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return $content; |
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} |
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/** |
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* Renders partial. |
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* |
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* @param string $template |
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* @param mixed $content |
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* @param array $variables |
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* |
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* @return string |
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*/ |
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protected function render_partial($template, $content, $variables) |
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{ |
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return $this->render_template( |
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$this->resolve_template_name($template)->as_partial, |
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$content, |
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$variables |
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); |
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} |
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/** |
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* Renders layout. |
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* |
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* @param string $template |
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* @param array $variables |
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* |
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* @return string |
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*/ |
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protected function render_layout($template, array $variables) |
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{ |
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return $this->render_template( |
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$this->resolve_template_name($template)->as_layout, |
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null, |
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$variables |
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); |
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} |
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/** |
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* Renders template. |
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* |
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* @param string $name |
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* @param string $content |
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* @param array $variables |
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* |
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* @return string |
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*/ |
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protected function render_template($name, $content, $variables) |
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{ |
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return $this->engines->render( |
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$this->resolve_template($name), |
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$content, |
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$variables |
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); |
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} |
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/** |
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* Resolves template name. |
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* |
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* @param mixed $content |
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* |
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* @return TemplateName |
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*/ |
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protected function resolve_template_name($content) |
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{ |
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return TemplateName::from($content); |
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} |
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/** |
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* Resolves rendering options. |
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* |
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* @param mixed $target_or_options |
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* @param array $additional_options |
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* |
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* @return array |
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* |
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* @throws InvalidRenderTarget if rendering target is invalid. |
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*/ |
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protected function resolve_options($target_or_options, array $additional_options = []) |
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{ |
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$options = []; |
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if (is_object($target_or_options)) |
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{ |
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$additional_options[self::OPTION_CONTENT] = $target_or_options; |
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$additional_options[self::OPTION_LOCALS]['this'] = $target_or_options; |
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if (empty($additional_options[self::OPTION_PARTIAL]) && empty($additional_options[self::OPTION_TEMPLATE])) |
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{ |
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$additional_options[self::OPTION_PARTIAL] = $this->resolve_template_name($target_or_options); |
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} |
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} |
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else if (is_array($target_or_options)) |
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{ |
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$options = $target_or_options; |
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} |
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else |
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{ |
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throw new InvalidRenderTarget($target_or_options); |
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} |
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return $additional_options + $options + [ |
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self::OPTION_CONTENT => null, |
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self::OPTION_PARTIAL => null, |
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self::OPTION_TEMPLATE => null, |
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self::OPTION_LAYOUT => null, |
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self::OPTION_LOCALS => [] |
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]; |
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} |
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} |
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