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<?php |
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namespace DavideCasiraghi\ResponsiveGallery; |
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class ResponsiveGalleryFactory |
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{ |
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/************************************************************************/ |
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/** |
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* Returns the plugin parameters. |
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* @param array $matches result from the regular expression on the string from the article |
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* @return array $ret the array containing the parameters |
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**/ |
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public static function getGalleryParameters($matches, $publicPath) |
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{ |
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$ret = []; |
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// Get Paths |
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$sitePath = '/'; |
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$siteUrl = $publicPath; |
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// Get activation string parameters (from article) |
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$ret['token'] = $matches[0]; |
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$subDir = $matches[2]; |
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$ret['column_width'] = $matches[4]; |
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$ret['gutter'] = $matches[6]; |
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// Directories |
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$ret['images_dir'] = $publicPath.'/'.$subDir.'/'; |
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$ret['thumbs_dir'] = $publicPath.'/'.$subDir.'/thumb/'; |
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// Thumbnails size |
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$ret['thumbs_size']['width'] = 300; |
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$ret['thumbs_size']['height'] = 300; |
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// URL variables |
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$ret['gallery_url'] = $subDir.'/'; |
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$ret['thumb_url'] = $subDir.'/thumbs/'; |
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return $ret; |
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} |
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/************************************************************************/ |
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/** |
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* Generate a single thumbnail file from an image. |
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* @param array $src path of the original image |
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* @param array $dest path of the generated thumbnail |
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* @param array $desired_width width of the thumbnail |
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* @return create a file |
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**/ |
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public function generate_single_thumb_file($src, $dest, $desired_width, $desired_height) |
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{ |
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// Read the source image |
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$source_image = imagecreatefromjpeg($src); |
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// Get width and height of the original image |
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$width = imagesx($source_image); |
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$height = imagesy($source_image); |
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// Horizontal image |
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if ($width > $height) { |
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$desired_width = 400; |
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$desired_height = floor($height * ($desired_width / $width)); |
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} |
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// Vertical image |
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else { |
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$desired_height = 500; |
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$desired_width = floor($width * ($desired_height / $height)); |
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} |
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// Create a new, "virtual" image |
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$virtual_image = imagecreatetruecolor($desired_width, $desired_height); |
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// Copy source image at a resized size |
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imagecopyresampled($virtual_image, $source_image, 0, 0, 0, 0, $desired_width, $desired_height, $width, $height); |
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//Create the physical thumbnail image to its destination |
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imagejpeg($virtual_image, $dest); |
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} |
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/************************************************************************/ |
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/** |
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* Generate all the thumbnails of the gallery. |
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* @param string $images_dir images dir on the server |
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* @param string $thumbs_dir thumb dir on the server |
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* @param string $$thumbs_size |
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* @param array $image_files |
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* @return generate thumbnail files |
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**/ |
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public function generateThumbs($images_dir, $thumbs_dir, $thumbs_size, $image_files) |
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{ |
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// Thumbnails size |
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$thumbs_width = $thumbs_size['width']; |
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$thumbs_height = $thumbs_size['height']; |
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// Create thumbs dir |
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if (! is_dir($thumbs_dir)) { |
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mkdir($thumbs_dir); |
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} |
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// Generate missing thumbs |
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if (count($image_files)) { |
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$index = 0; |
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foreach ($image_files as $index=>$file) { |
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$index++; |
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$thumbnail_image = $thumbs_dir.$file; |
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if (! file_exists($thumbnail_image)) { |
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$extension = self::get_file_extension($thumbnail_image); |
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if ($extension) { |
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//echo $images_dir." ".$file." ".$thumbnail_image." ".$thumbs_width; |
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$this->generate_single_thumb_file($images_dir.$file, $thumbnail_image, $thumbs_width, $thumbs_height); |
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} |
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} |
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} |
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} |
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} |
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/************************************************************************/ |
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/** |
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* Create images array. |
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* @param array $image_files array with all the image names |
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* @param $gallery_url |
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* @return $ret array with the images datas |
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**/ |
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public function createImagesArray($image_file_names, $gallery_url, $dbImageDatas) |
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{ |
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sort($image_file_names); // Order by image name |
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$ret = []; |
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foreach ($image_file_names as $k => $image_file_name) { |
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$ret[$k]['file_name'] = $image_file_name; |
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$ret[$k]['file_path'] = $gallery_url.$image_file_name; |
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$ret[$k]['thumb_path'] = $gallery_url.'thumb/'.$image_file_name; |
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$ret[$k]['description'] = ''; |
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$ret[$k]['alt'] = ''; |
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$ret[$k]['video_link'] = null; |
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if (! empty($dbImageDatas[$image_file_name])) { |
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$ret[$k]['description'] = $dbImageDatas[$image_file_name]->description; |
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$ret[$k]['alt'] = $dbImageDatas[$image_file_name]->alt; |
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$ret[$k]['video_link'] = $dbImageDatas[$image_file_name]->video_link; |
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} |
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} |
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return $ret; |
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} |
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/************************************************************************/ |
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/** |
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* Get images file names array. |
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* @param $images_dir the images dir on the server |
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* @return array $ret array containing all the images file names |
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**/ |
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public function getImageFiles($images_dir) |
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{ |
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$ret = $this->get_files($images_dir); |
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return $ret; |
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} |
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/************************************************************************/ |
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/** |
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* Prepare the gallery HTML. |
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* @param array $images Images array [file_path, short_desc, long_desc] |
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* @param array $bootstrapDeviceImageWidth array that contain the sizes of the images |
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* for the four kind of bootrap devices classes () |
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* xs (phones), sm (tablets), md (desktops), and lg (larger desktops) |
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* @param ****array $desired_width width of the thumbnail |
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* @return string $ret the HTML to print on screen |
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**/ |
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public function prepareGallery($images, $parameters) |
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{ |
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// Animate box on hover |
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$itemClass = 'animated'; |
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// The gallery HTML |
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$ret = "<div class='responsiveGallery bricklayer' id='my-bricklayer' data-column-width='".$parameters['column_width']."' data-gutter='".$parameters['gutter']."'>"; |
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foreach ($images as $k => $image) { |
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// Get item link |
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$imageLink = ($image['video_link'] == null) ? $image['file_path'] : $image['video_link']; |
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$videoPlayIcon = ($image['video_link'] == null) ? '' : "<i class='far fa-play-circle'></i>"; |
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$ret .= "<div class='box ".$itemClass."'>"; |
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$ret .= "<a href='".$imageLink."' data-fancybox='images' data-caption='".$image['description']."'>"; |
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$ret .= "<img src='".$image['thumb_path']."' alt='".$image['alt']."'/>"; |
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$ret .= $videoPlayIcon; |
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$ret .= '</a>'; |
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$ret .= '</div>'; |
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} |
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$ret .= '</div>'; |
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return $ret; |
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} |
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/************************************************************************/ |
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/** |
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* Returns files from dir. |
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* @param string $images_dir The images directory |
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* @param array $exts the file types (actually doesn't work the thumb with png, it's to study why) |
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* @return array $files the files array |
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**/ |
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public function get_files($images_dir, $exts = ['jpg']) |
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{ |
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$files = []; |
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if ($handle = opendir($images_dir)) { |
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while (false !== ($file = readdir($handle))) { |
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$extension = strtolower($this->get_file_extension($file)); |
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if ($extension && in_array($extension, $exts)) { |
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$files[] = $file; |
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} |
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} |
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closedir($handle); |
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} |
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return $files; |
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} |
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/************************************************************************/ |
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/** |
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* Returns a file's extension. |
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* @param string $file_name the file name |
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* @return string the extension |
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**/ |
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public static function get_file_extension($file_name) |
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{ |
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return substr(strrchr($file_name, '.'), 1); |
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} |
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/************************************************************************/ |
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/** |
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* Find the gallery snippet occurances in the text. |
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* @param array $text the text where to find the gallery snippets |
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* @return array $ret the matches |
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**/ |
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public function getGallerySnippetOccurrences($text) |
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{ |
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$re = '/{\# |
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\h+gallery |
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\h+(src|column_width|gutter)=\[([^]]*)] |
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\h+((?1))=\[([^]]*)] |
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\h+((?1))=\[([^]]*)] |
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\h*\#}/x'; |
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if (preg_match_all($re, $text, $matches, PREG_SET_ORDER, 0)) { |
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return $matches; |
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} else { |
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return; |
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} |
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} |
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/************************************************************************/ |
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/** |
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* Retrieve the datas from the package config file (published and edited by the user). |
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* @param none |
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* @return array $ret - the config parapeters |
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**/ |
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public function getPhotoDatasFromDb() |
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{ |
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$ret = GalleryImage::get()->keyBy('file_name'); |
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//dd($ret); |
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return $ret; |
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} |
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/************************************************************************/ |
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/** |
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* Return the post body with the gallery HTML instead of the found snippet. |
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* @param array $file_name the file name |
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* @return array $ret the extension |
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**/ |
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public function getGallery($postBody, $publicPath) |
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{ |
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$matches = $this->getGallerySnippetOccurrences($postBody); |
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foreach ($matches as $key => $single_gallery_matches) { |
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$parameters = self::getGalleryParameters($single_gallery_matches, $publicPath); |
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if (is_dir($parameters['images_dir'])) { |
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// Get images file name array |
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$image_files = $this->getImageFiles($parameters['images_dir']); |
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if (! empty($image_files)) { |
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$this->generateThumbs($parameters['images_dir'], $parameters['thumbs_dir'], $parameters['thumbs_size'], $image_files); |
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$dbImageDatas = $this->getPhotoDatasFromDb(); |
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// Create Images array [file_path, short_desc, long_desc] |
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$images = $this->createImagesArray($image_files, $parameters['gallery_url'], $dbImageDatas); |
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// Prepare Gallery HTML |
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$galleryHtml = $this->prepareGallery($images, $parameters); |
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} else { |
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$galleryHtml = "<div class='alert alert-warning' role='alert'>The directory specified exist but it doesn't contain images</div>"; |
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} |
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} else { |
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$galleryHtml = "<div class='alert alert-warning' role='alert'>Image directory not found<br />".$parameters['images_dir'].'</div>'; |
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} |
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// Replace the TOKEN found in the article with the generatd gallery HTML |
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$postBody = str_replace($parameters['token'], $galleryHtml, $postBody); |
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} |
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return $postBody; |
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} |
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316
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} |
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davide-casiraghi /
laravel-responsive-gallery
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