moved asset_container into asset.php
This commit is contained in:
Taylor Otwell
parent
83ace2de68
commit
d8eba6389c
262
system/asset.php
262
system/asset.php
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@ -1,5 +1,7 @@
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<?php namespace System;
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use System\HTML;
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class Asset {
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/**
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@ -33,4 +35,264 @@ public static function __callStatic($method, $parameters)
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return call_user_func_array(array(static::container(), $method), $parameters);
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}
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}
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class Asset_Container {
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/**
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* The asset container name.
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*
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* @var string
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*/
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public $name;
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/**
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* All of the registered assets.
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*
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* @var array
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*/
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public $assets = array();
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/**
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* Create a new asset container instance.
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*
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* @param string $name
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* @return void
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*/
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public function __construct($name)
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{
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$this->name = $name;
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}
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/**
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* Add an asset to the container.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function add($name, $source, $dependencies = array(), $attributes = array())
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{
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return call_user_func(array($this, (\System\File::extension($source) == 'css') ? 'style' : 'script'), $name, $source, $dependencies, $attributes);
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}
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/**
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* Add CSS to the registered assets.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function style($name, $source, $dependencies = array(), $attributes = array())
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{
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if ( ! array_key_exists('media', $attributes))
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{
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$attributes['media'] = 'all';
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}
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$this->register('style', $name, $source, $dependencies, $attributes);
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}
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/**
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* Add JavaScript to the registered assets.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function script($name, $source, $dependencies = array(), $attributes = array())
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{
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$this->register('script', $name, $source, $dependencies, $attributes);
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}
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/**
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* Add an asset to the registered assets.
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*
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* @param string $type
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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private function register($type, $name, $source, $dependencies, $attributes)
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{
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$dependencies = (array) $dependencies;
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$this->assets[$type][$name] = compact('source', 'dependencies', 'attributes');
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}
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/**
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* Get all of the registered CSS assets.
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*
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* @return string
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*/
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public function styles()
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{
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return $this->get_group('style');
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}
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/**
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* Get all of the registered JavaScript assets.
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*
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* @return string
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*/
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public function scripts()
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{
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return $this->get_group('script');
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}
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/**
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* Get all of the registered assets for a given group.
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*
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* @param string $group
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* @return string
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*/
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private function get_group($group)
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{
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if ( ! isset($this->assets[$group]) or count($this->assets[$group]) == 0) return '';
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$assets = '';
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foreach ($this->arrange($this->assets[$group]) as $name => $data)
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{
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$assets .= $this->get_asset($group, $name);
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}
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return $assets;
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}
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/**
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* Get a registered CSS asset.
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*
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* @param string $name
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* @return string
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*/
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public function get_style($name)
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{
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return $this->get_asset('style', $name);
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}
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/**
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* Get a registered JavaScript asset.
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*
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* @param string $name
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* @return string
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*/
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public function get_script($name)
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{
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return $this->get_asset('script', $name);
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}
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/**
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* Get a registered asset.
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*
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* @param string $group
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* @param string $name
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* @return string
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*/
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private function get_asset($group, $name)
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{
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if ( ! isset($this->assets[$group][$name]))
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{
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return '';
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}
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$asset = $this->assets[$group][$name];
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return HTML::$group($asset['source'], $asset['attributes']);
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}
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/**
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* Sort and retrieve assets based on their dependencies
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*
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* @param array $assets
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* @return array
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*/
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private function arrange($assets)
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{
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list($original, $sorted) = array($assets, array());
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while (count($assets) > 0)
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{
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foreach ($assets as $asset => $value)
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{
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$this->evaluate_asset($asset, $value, $original, $sorted, $assets);
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}
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}
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return $sorted;
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}
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/**
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* Evaluate an asset and its dependencies.
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*
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* @param string $asset
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* @param string $value
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* @param array $original
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* @param array $sorted
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* @param array $assets
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* @return void
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*/
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private function evaluate_asset($asset, $value, $original, &$sorted, &$assets)
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{
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// If the asset has no more dependencies, we can add it to the sorted list
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// and remove it from the array of assets. Otherwise, we will not verify
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// the asset's dependencies and determine if they have already been sorted.
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if (count($assets[$asset]['dependencies']) == 0)
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{
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$sorted[$asset] = $value;
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unset($assets[$asset]);
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}
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else
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{
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foreach ($assets[$asset]['dependencies'] as $key => $dependency)
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{
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if ( ! $this->dependency_is_valid($asset, $dependency, $original, $assets))
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{
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unset($assets[$asset]['dependencies'][$key]);
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continue;
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}
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// If the dependency has not yet been added to the sorted list, we can not
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// remove it from this asset's array of dependencies. We'll try again on
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// the next trip through the loop.
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if ( ! isset($sorted[$dependency])) continue;
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unset($assets[$asset]['dependencies'][$key]);
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}
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}
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}
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/**
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* Check that a dependency is valid.
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*
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* @param string $asset
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* @param string $dependency
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* @param array $original
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* @param array $assets
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* @return bool
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*/
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private function dependency_is_valid($asset, $dependency, $original, $assets)
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{
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if ( ! isset($original[$dependency]))
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{
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return false;
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}
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elseif ($dependency === $asset)
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{
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throw new \Exception("Asset [$asset] is dependent on itself.");
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}
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elseif (isset($assets[$dependency]) and in_array($asset, $assets[$dependency]['dependencies']))
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{
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throw new \Exception("Assets [$asset] and [$dependency] have a circular dependency.");
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}
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}
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}
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@ -1,263 +0,0 @@
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<?php namespace System;
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use System\HTML;
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class Asset_Container {
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/**
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* The asset container name.
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*
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* @var string
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*/
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public $name;
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/**
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* All of the registered assets.
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*
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* @var array
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*/
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public $assets = array();
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/**
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* Create a new asset container instance.
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*
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* @param string $name
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* @return void
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*/
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public function __construct($name)
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{
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$this->name = $name;
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}
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/**
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* Add an asset to the container.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function add($name, $source, $dependencies = array(), $attributes = array())
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{
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return call_user_func(array($this, (\System\File::extension($source) == 'css') ? 'style' : 'script'), $name, $source, $dependencies, $attributes);
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}
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/**
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* Add CSS to the registered assets.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function style($name, $source, $dependencies = array(), $attributes = array())
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{
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if ( ! array_key_exists('media', $attributes))
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{
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$attributes['media'] = 'all';
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}
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$this->register('style', $name, $source, $dependencies, $attributes);
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}
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/**
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* Add JavaScript to the registered assets.
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*
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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public function script($name, $source, $dependencies = array(), $attributes = array())
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{
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$this->register('script', $name, $source, $dependencies, $attributes);
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}
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/**
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* Add an asset to the registered assets.
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*
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* @param string $type
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* @param string $name
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* @param string $source
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* @param array $dependencies
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* @param array $attributes
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* @return void
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*/
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private function register($type, $name, $source, $dependencies, $attributes)
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{
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$dependencies = (array) $dependencies;
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$this->assets[$type][$name] = compact('source', 'dependencies', 'attributes');
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}
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/**
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* Get all of the registered CSS assets.
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*
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* @return string
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*/
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public function styles()
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{
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return $this->get_group('style');
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}
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/**
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* Get all of the registered JavaScript assets.
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*
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* @return string
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*/
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public function scripts()
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{
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return $this->get_group('script');
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}
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/**
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* Get all of the registered assets for a given group.
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*
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* @param string $group
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* @return string
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*/
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private function get_group($group)
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{
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if ( ! isset($this->assets[$group]) or count($this->assets[$group]) == 0) return '';
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$assets = '';
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foreach ($this->arrange($this->assets[$group]) as $name => $data)
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{
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$assets .= $this->get_asset($group, $name);
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}
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return $assets;
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}
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/**
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* Get a registered CSS asset.
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*
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* @param string $name
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* @return string
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*/
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public function get_style($name)
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{
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return $this->get_asset('style', $name);
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}
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/**
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* Get a registered JavaScript asset.
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*
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* @param string $name
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* @return string
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*/
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public function get_script($name)
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{
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return $this->get_asset('script', $name);
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}
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/**
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* Get a registered asset.
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*
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* @param string $group
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* @param string $name
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* @return string
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*/
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private function get_asset($group, $name)
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{
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if ( ! isset($this->assets[$group][$name]))
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{
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return '';
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}
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$asset = $this->assets[$group][$name];
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return HTML::$group($asset['source'], $asset['attributes']);
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}
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/**
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* Sort and retrieve assets based on their dependencies
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*
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* @param array $assets
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* @return array
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*/
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private function arrange($assets)
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{
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list($original, $sorted) = array($assets, array());
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while (count($assets) > 0)
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{
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foreach ($assets as $asset => $value)
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{
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$this->evaluate_asset($asset, $value, $original, $sorted, $assets);
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}
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}
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return $sorted;
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}
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/**
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* Evaluate an asset and its dependencies.
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*
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* @param string $asset
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* @param string $value
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* @param array $original
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* @param array $sorted
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* @param array $assets
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* @return void
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*/
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private function evaluate_asset($asset, $value, $original, &$sorted, &$assets)
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{
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// If the asset has no more dependencies, we can add it to the sorted list
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// and remove it from the array of assets. Otherwise, we will not verify
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// the asset's dependencies and determine if they have already been sorted.
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if (count($assets[$asset]['dependencies']) == 0)
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{
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$sorted[$asset] = $value;
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unset($assets[$asset]);
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}
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else
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{
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foreach ($assets[$asset]['dependencies'] as $key => $dependency)
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{
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if ( ! $this->dependency_is_valid($asset, $dependency, $original, $assets))
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{
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unset($assets[$asset]['dependencies'][$key]);
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continue;
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}
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// If the dependency has not yet been added to the sorted list, we can not
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// remove it from this asset's array of dependencies. We'll try again on
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// the next trip through the loop.
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if ( ! isset($sorted[$dependency])) continue;
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unset($assets[$asset]['dependencies'][$key]);
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}
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}
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}
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/**
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* Check that a dependency is valid.
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*
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* @param string $asset
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* @param string $dependency
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* @param array $original
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* @param array $assets
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* @return bool
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*/
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private function dependency_is_valid($asset, $dependency, $original, $assets)
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{
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if ( ! isset($original[$dependency]))
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{
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return false;
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}
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elseif ($dependency === $asset)
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{
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throw new \Exception("Asset [$asset] is dependent on itself.");
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}
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elseif (isset($assets[$dependency]) and in_array($asset, $assets[$dependency]['dependencies']))
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{
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throw new \Exception("Assets [$asset] and [$dependency] have a circular dependency.");
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}
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}
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}
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