mastodon/app/models/concerns/account_header.rb
Eugen Rochko 66105929e0
Don't resize avatars/headers if their dimensions are already right (#6508)
Also don't apply "-quality 80" option which is probably the reason
for slight color differences between original and remote image
(because it would apply it twice, once on original instance, and
again on the receiving instance)
2018-02-19 16:06:12 +01:00

38 lines
1 KiB
Ruby

# frozen_string_literal: true
module AccountHeader
extend ActiveSupport::Concern
IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
class_methods do
def header_styles(file)
styles = {}
geometry = Paperclip::Geometry.from_file(file)
styles[:original] = '700x335#' unless geometry.width == 700 && geometry.height == 335
styles[:static] = { format: 'png', convert_options: '-coalesce' } if file.content_type == 'image/gif'
styles
rescue Paperclip::Errors::NotIdentifiedByImageMagickError
{}
end
private :header_styles
end
included do
# Header upload
has_attached_file :header, styles: ->(f) { header_styles(f) }, convert_options: { all: '-strip' }
validates_attachment_content_type :header, content_type: IMAGE_MIME_TYPES
validates_attachment_size :header, less_than: 2.megabytes
end
def header_original_url
header.url(:original)
end
def header_static_url
header_content_type == 'image/gif' ? header.url(:static) : header_original_url
end
end