Merge pull request #16 from hrevert/feature/simple-image-loader-factory

New way to load images

docs/image-loaders.md

@@ -34,6 +34,27 @@ $imageLoader = new HtImgModule\Imagine\Loader\SimpleFileSystemLoader('data/path/
 $binary = $imageLoader->load('my-image.png');
 ```
 
+This module can be used to load images by configuring like this:
+
+```php
+return [
+    'htimg' => [
+        'filters' => [
+            'my_filter' => [
+                'type' => 'filter_type',
+                'options' => [
+                    // .....
+                    'image_loader' => 'simple',
+                    'loader_options' => [
+                        'root_path' => 'data/images/uploads',
+                    ]
+                ]
+            ]        
+        ]
+    ]
+]
+```
+
 #### HtImgModule\Imagine\Loader\FileSystemLoader
 This image loaders resolves full path of image using image resolver and loads the image.
 ```php

src/Factory/Imagine/Loader/SimpleFileSystemLoaderFactory.php

@@ -0,0 +1,33 @@
+<?php
+namespace HtImgModule\Factory\Imagine\Loader;
+
+use Zend\ServiceManager\FactoryInterface;
+use Zend\ServiceManager\ServiceLocatorInterface;
+use HtImgModule\Imagine\Loader\SimpleFileSystemLoader;
+use Zend\ServiceManager\MutableCreationOptionsInterface;
+use HtImgModule\Exception;
+
+class SimpleFileSystemLoaderFactory implements FactoryInterface, MutableCreationOptionsInterface
+{
+    /**
+     * @var array
+     */
+    protected $options = [];
+
+    /**
+     * {@inheritDoc}
+     */
+    public function setCreationOptions(array $options)
+    {
+        $this->options = $options;
+    }
+
+    public function createService(ServiceLocatorInterface $loaders)
+    {
+        if (!isset($this->options['root_path'])) {
+            throw new Exception\InvalidArgumentException('Missing "root_path" in options array');
+        }
+
+        return new SimpleFileSystemLoader($this->options['root_path']);
+    }    
+}

src/Imagine/Loader/LoaderPluginManager.php

@@ -8,6 +8,11 @@ class LoaderPluginManager extends AbstractPluginManager
 {
     protected $factories = [
         'filesystem' => 'HtImgModule\Factory\Imagine\Loader\FileSystemLoaderFactory',
+        'simple'     => 'HtImgModule\Factory\Imagine\Loader\SimpleFileSystemLoaderFactory',
+    ];
+
+    protected $shared = [
+        'simple' => false
     ];
 
     public function validatePlugin($plugin)

tests/HtImgModuleTest/Factory/Imagine/Loader/SimpleFileSystemLoaderFactoryTest.php

@@ -0,0 +1,24 @@
+<?php
+namespace HtImgModuleTest\Factory\Imagine\Loader;
+
+use Zend\ServiceManager\ServiceManager;
+use HtImgModule\Factory\Imagine\Loader\SimpleFileSystemLoaderFactory;    
+
+class SimpleFileSystemLoaderFactoryTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCreateService()
+    {
+        $serviceManager = new ServiceManager();
+        $factory = new SimpleFileSystemLoaderFactory;
+        $factory->setCreationOptions(['root_path' => 'data/images']);
+        $this->assertInstanceOf('HtImgModule\Imagine\Loader\SimpleFileSystemLoader', $factory->createService($serviceManager));
+    }
+
+    public function testGetExceptionWhenRootPathOptionIsMissing()
+    {
+        $serviceManager = new ServiceManager();
+        $factory = new SimpleFileSystemLoaderFactory;
+        $this->setExpectedException('HtImgModule\Exception\InvalidArgumentException');
+        $factory->createService($serviceManager);
+    }
+}