mastodon-glitch/app/controllers/concerns/theming_concern.rb

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# frozen_string_literal: true
module ThemingConcern
extend ActiveSupport::Concern
def use_pack(pack_name)
@core = resolve_pack_with_common(Themes.instance.core, 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)
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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?
fallbacks = []
if data.key?('fallback')
fallbacks = data['fallback'] if data['fallback'].is_a?(Array)
fallbacks = [data['fallback']] if data['fallback'].is_a?(String)
elsif data['name'] != Setting.default_settings['flavour']
fallbacks = [Setting.default_settings['flavour']]
end
fallbacks.each do |fallback|
return resolve_pack(Themes.instance.flavour(fallback), pack_name) if Themes.instance.flavour(fallback)
end
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