BP_Attachment_Avatar::shrink( string $file = '', int $ui_available_width )

	public static function shrink( $file = '', $ui_available_width = 0 ) {
		// Get image size.
		$avatar_data = parent::get_image_data( $file );

		// Init the edit args.
		$edit_args = array();

		// Defaults to the Avatar original max width constant.
		$original_max_width = bp_core_avatar_original_max_width();

		// The ui_available_width is defined and it's smaller than the Avatar original max width.
		if ( ! empty( $ui_available_width ) && $ui_available_width < $original_max_width ) {
			/**
			 * In this case, to make sure the content of the image will be fully displayed
			 * during the cropping step, let's use the Avatar UI Available width.
			 */
			$original_max_width = $ui_available_width;

			// $original_max_width has to be larger than the avatar's full width
			if ( $original_max_width < bp_core_avatar_full_width() ) {
				$original_max_width = bp_core_avatar_full_width();
			}
		}

		// Do we need to resize the image?
		if ( isset( $avatar_data['width'] ) && $avatar_data['width'] > $original_max_width ) {
			$edit_args = array(
				'max_w' => $original_max_width,
				'max_h' => $original_max_width,
			);
		}

		// Do we need to rotate the image?
		$angles = array(
			3 => 180,
			6 => -90,
			8 =>  90,
		);

		if ( isset( $avatar_data['meta']['orientation'] ) && isset( $angles[ $avatar_data['meta']['orientation'] ] ) ) {
			$edit_args['rotate'] = $angles[ $avatar_data['meta']['orientation'] ];
		}

		// No need to edit the avatar, original file will be used.
		if ( empty( $edit_args ) ) {
			return false;

		// Add the file to the edit arguments.
		} else {
			$edit_args['file'] = $file;
		}

		return parent::edit_image( 'avatar', $edit_args );
	}