function FMDiskFileSystem::resizeFile in N1ED - Visual editor as CKEditor plugin with Bootstrap support 8.2

Creates a resized image.

Overrides FMDiskFileSystemInterface::resizeFile

File

src/Flmngr/FlmngrServer/fs/FMDiskFileSystem.php, line 294

Class

FMDiskFileSystem

Implements file system interface. Provides an interface to access file system (local disc FS). This is the correct module to replace if you want to implement some custom file system support (i. e. network file system like Amazon S3).

Namespace

Drupal\n1ed\Flmngr\FlmngrServer\fs

Code

function resizeFile($filePath, $newFileNameWithoutExt, $width, $height, $mode) {

  // $filePath here starts with "/", not with "/root_dir"
  $rootDir = $this
    ->getRootDirName();
  $filePath = '/' . $rootDir . $filePath;
  $srcPath = $this
    ->getAbsolutePath($filePath);
  $index = strrpos($srcPath, "/");
  $oldFileNameWithExt = substr($srcPath, $index + 1);
  $newExt = "png";
  $oldExt = strtolower(Utils::getExt($srcPath));
  if ($oldExt === "jpg" || $oldExt === "jpeg") {
    $newExt = "jpg";
  }
  if ($oldExt === "webp") {
    $newExt = "webp";
  }
  $dstPath = substr($srcPath, 0, $index) . "/" . $newFileNameWithoutExt . "." . $newExt;
  if (Utils::getNameWithoutExt($dstPath) === Utils::getNameWithoutExt($srcPath)) {

    // This is `default` format request - we need to process the image itself without changing its extension
    $dstPath = $srcPath;
  }
  if ($mode === "IF_EXISTS" && !file_exists($dstPath)) {
    throw new MessageException(Message::createMessage(FMMessage::FM_NOT_ERROR_NOT_NEEDED_TO_UPDATE));
  }
  if ($mode === "DO_NOT_UPDATE" && file_exists($dstPath)) {
    $url = substr($dstPath, strlen($this->dirFiles) + 1);
    if (strpos($url, '/') !== 0) {
      $url = '/' . $url;
    }
    return $url;
  }
  $image = NULL;
  switch (FMDiskFileSystem::getMimeType($srcPath)) {
    case 'image/gif':
      $image = @imagecreatefromgif($srcPath);
      break;
    case 'image/jpeg':
      $image = @imagecreatefromjpeg($srcPath);
      break;
    case 'image/png':
      $image = @imagecreatefrompng($srcPath);
      break;
    case 'image/bmp':
      $image = @imagecreatefromwbmp($srcPath);
      break;
    case 'image/webp':

      // If you get problems with WEBP preview creation, please consider updating GD > 2.2.4
      // https://stackoverflow.com/questions/59621626/converting-webp-to-jpeg-in-with-php-gd-library
      $image = @imagecreatefromwebp($srcPath);
      break;
    case 'image/svg+xml':

      // Return SVG as is
      $url = substr($srcPath, strlen($this->dirFiles) + 1);
      if (strpos($url, '/') !== 0) {
        $url = '/' . $url;
      }
      return $url;
  }

  // Somewhy it can not read ONLY SOME JPEG files, we've caught it on Windows + IIS + PHP
  // Solution from here: https://github.com/libgd/libgd/issues/206
  if (!$image) {
    $image = imagecreatefromstring(file_get_contents($srcPath));
  }

  // end of fix
  if (!$image) {
    throw new MessageException(Message::createMessage(Message::IMAGE_PROCESS_ERROR));
  }
  imagesavealpha($image, TRUE);
  $imageInfo = FMDiskFileSystem::getImageInfo($srcPath);
  $originalWidth = $imageInfo->width;
  $originalHeight = $imageInfo->height;
  $needToFitWidth = $originalWidth > $width && $width > 0;
  $needToFitHeight = $originalHeight > $height && $height > 0;
  if ($needToFitWidth && $needToFitHeight) {
    if ($width / $originalWidth < $height / $originalHeight) {
      $needToFitHeight = false;
    }
    else {
      $needToFitWidth = false;
    }
  }
  if (!$needToFitWidth && !$needToFitHeight) {

    // if we generated the preview in past, we need to update it in any case
    if (!file_exists($dstPath) || $newFileNameWithoutExt . "." . $oldExt === $oldFileNameWithExt) {

      // return old file due to it has correct width/height to be used as a preview
      $url = substr($srcPath, strlen($this->dirFiles) + 1);
      if (strpos($url, '/') !== 0) {
        $url = '/' . $url;
      }
      return $url;
    }
    else {
      $width = $originalWidth;
      $height = $originalHeight;
    }
  }
  if ($needToFitWidth) {
    $ratio = $width / $originalWidth;
    $height = $originalHeight * $ratio;
  }
  else {
    if ($needToFitHeight) {
      $ratio = $height / $originalHeight;
      $width = $originalWidth * $ratio;
    }
  }
  $resizedImage = imagecreatetruecolor($width, $height);
  imagealphablending($resizedImage, false);
  imagesavealpha($resizedImage, true);
  imagecopyresampled($resizedImage, $image, 0, 0, 0, 0, $width, $height, $originalWidth, $originalHeight);
  $result = FALSE;
  $ext = strtolower(Utils::getExt($dstPath));
  if ($ext === "png") {
    $result = imagepng($resizedImage, $dstPath);
  }
  else {
    if ($ext === "jpg" || $ext === "jpeg") {
      $result = imagejpeg($resizedImage, $dstPath);
    }
    else {
      if ($ext === "bmp") {
        $result = imagebmp($resizedImage, $dstPath);
      }
      else {
        if ($ext === "webp") {
          $result = imagewebp($resizedImage, $dstPath);
        }
        else {
          $result = TRUE;
        }
      }
    }
  }

  // do not resize other formats (i. e. GIF)
  if ($result === FALSE) {
    throw new MessageException(FMMessage::createMessage(FMMessage::FM_UNABLE_TO_WRITE_PREVIEW_IN_CACHE_DIR, $dstPath));
  }
  $url = substr($dstPath, strlen($this->dirFiles) + 1);
  if (strpos($url, '/') !== 0) {
    $url = '/' . $url;
  }
  return $url;
}