103 lines
2.8 KiB
PHP
103 lines
2.8 KiB
PHP
<?php
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namespace SilverStripe\Core\Manifest;
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use InvalidArgumentException;
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use SilverStripe\Core\Injector\Injectable;
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use SilverStripe\View\TemplateGlobalProvider;
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/**
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* Helper for mapping module resources to paths / urls
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*/
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class ModuleResourceLoader implements TemplateGlobalProvider
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{
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use Injectable;
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/**
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* Convert a file of the form "vendor/package:resource" into a BASE_PATH-relative file
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* For other files, return original value
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*
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* @param string $resource
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* @return string
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*/
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public function resolvePath($resource)
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{
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$resourceObj = $this->resolveResource($resource);
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if ($resourceObj instanceof ModuleResource) {
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return $resourceObj->getRelativePath();
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}
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return $resource;
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}
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/**
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* Resolves resource specifier to the given url.
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*
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* @param string $resource
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* @return string
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*/
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public function resolveURL($resource)
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{
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$resourceObj = $this->resolveResource($resource);
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if ($resourceObj instanceof ModuleResource) {
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return $resourceObj->getURL();
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}
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return $resource;
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}
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/**
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* Template wrapper for resolvePath
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*
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* @param string $resource
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* @return string
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*/
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public static function resourcePath($resource)
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{
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return static::singleton()->resolvePath($resource);
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}
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/**
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* Template wrapper for resolveURL
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*
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* @param string $resource
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* @return string
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*/
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public static function resourceURL($resource)
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{
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return static::singleton()->resolveURL($resource);
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}
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public static function get_template_global_variables()
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{
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return [
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'resourcePath',
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'resourceURL'
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];
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}
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/**
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* Return module resource for the given path, if specified as one.
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* Returns the original resource otherwise.
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*
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* @param string $resource
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* @return ModuleResource|string The resource, or input string if not a module resource
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*/
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public function resolveResource($resource)
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{
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// String of the form vendor/package:resource. Excludes "http://bla" as that's an absolute URL
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if (!preg_match('#^ *(?<module>[^/: ]+/[^/: ]+) *: *(?<resource>[^ ]*)$#', $resource, $matches)) {
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return $resource;
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}
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$module = $matches['module'];
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$resource = $matches['resource'];
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$moduleObj = ModuleLoader::getModule($module);
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if (!$moduleObj) {
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throw new InvalidArgumentException("Can't find module '$module'");
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}
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$resourceObj = $moduleObj->getResource($resource);
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if (!$resourceObj->exists()) {
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throw new InvalidArgumentException("Module '$module' does not have specified resource '$resource'");
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}
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return $resourceObj;
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}
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}
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