catstodon/app/controllers/concerns/theming_concern.rb
Claire 9a8be8cf49 Remove theme fallback mechanism
Remove the `fallback` property and do not fallback to using another flavour
when a pack is not available in the selected flavour.

Flavours should define all packs, and should they wish to piggy-back on
another one, they can import that other one's pack explicitly instead.
2024-04-28 15:05:16 +02:00

76 lines
2.1 KiB
Ruby

# frozen_string_literal: true
module ThemingConcern
extend ActiveSupport::Concern
def use_pack(pack_name)
@theme = resolve_pack_with_common(Themes.instance.flavour(current_flavour), pack_name, current_skin)
end
private
def current_flavour
[current_user&.setting_flavour, Setting.flavour, 'glitch', 'vanilla'].find { |flavour| Themes.instance.flavours.include?(flavour) }
end
def current_skin
skins = Themes.instance.skins_for(current_flavour)
[current_user&.setting_skin, Setting.skin, 'default'].find { |skin| skins.include?(skin) }
end
def valid_pack_data?(data, pack_name)
data['pack'].is_a?(Hash) && data['pack'][pack_name].present?
end
def nil_pack(data)
{
use_common: true,
flavour: data['name'],
pack: nil,
preload: nil,
skin: nil,
supported_locales: data['locales'],
}
end
def pack(data, pack_name, skin)
pack_data = {
use_common: true,
flavour: data['name'],
pack: pack_name,
preload: nil,
skin: nil,
supported_locales: data['locales'],
}
return pack_data unless data['pack'][pack_name].is_a?(Hash)
pack_data[:use_common] = false if data['pack'][pack_name]['use_common'] == false
pack_data[:pack] = nil unless data['pack'][pack_name]['filename']
preloads = data['pack'][pack_name]['preload']
pack_data[:preload] = [preloads] if preloads.is_a?(String)
pack_data[:preload] = preloads if preloads.is_a?(Array)
if skin != 'default' && data['skin'][skin]
pack_data[:skin] = skin if data['skin'][skin].include?(pack_name)
elsif data['pack'][pack_name]['stylesheet']
pack_data[:skin] = 'default'
end
pack_data
end
def resolve_pack(data, pack_name, skin)
return pack(data, pack_name, skin) if valid_pack_data?(data, pack_name)
return if data['name'].blank?
nil
end
def resolve_pack_with_common(data, pack_name, skin = 'default')
result = resolve_pack(data, pack_name, skin) || nil_pack(data)
result[:common] = resolve_pack(data, 'common', skin) if result.delete(:use_common)
result
end
end