discourse/app/models/color_scheme.rb

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# frozen_string_literal: true
require_dependency 'distributed_cache'
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class ColorScheme < ActiveRecord::Base
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# rubocop:disable Layout/AlignHash
CUSTOM_SCHEMES = {
'Dark': {
"primary" => 'dddddd',
"secondary" => '222222',
"tertiary" => '0f82af',
"quaternary" => 'c14924',
"header_background" => '111111',
"header_primary" => 'dddddd',
"highlight" => 'a87137',
"danger" => 'e45735',
"success" => '1ca551',
"love" => 'fa6c8d'
},
# By @itsbhanusharma
'Neutral': {
"primary" => '000000',
"secondary" => 'ffffff',
"tertiary" => '51839b',
"quaternary" => 'b85e48',
"header_background" => '333333',
"header_primary" => 'f3f3f3',
"highlight" => 'ecec70',
"danger" => 'b85e48',
"success" => '518751',
"love" => 'fa6c8d'
},
# By @Flower_Child
'Grey Amber': {
"primary" => 'd9d9d9',
"secondary" => '3d4147',
"tertiary" => 'fdd459',
"quaternary" => 'fdd459',
"header_background" => '36393e',
"header_primary" => 'd9d9d9',
"highlight" => 'fdd459',
"danger" => 'e45735',
"success" => 'fdd459',
"love" => 'fdd459'
},
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# By @rafafotes
'Shades of Blue': {
"primary" => '203243',
"secondary" => 'eef4f7',
"tertiary" => '416376',
"quaternary" => '5e99b9',
"header_background" => '86bddb',
"header_primary" => 'ffffff',
"highlight" => '86bddb',
"danger" => 'bf3c3c',
"success" => '70db82',
"love" => 'fc94cb'
},
# By @mikechristopher
'Latte': {
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"primary" => 'f2e5d7',
"secondary" => '262322',
"tertiary" => 'f7f2ed',
"quaternary" => 'd7c9aa',
"header_background" => 'd7c9aa',
"header_primary" => '262322',
"highlight" => 'd7c9aa',
"danger" => 'db9584',
"success" => '78be78',
"love" => '8f6201'
},
# By @Flower_Child
'Summer': {
"primary" => '874342',
"secondary" => 'fffff4',
"tertiary" => 'fe9896',
"quaternary" => 'fcc9d0',
"header_background" => '96ccbf',
"header_primary" => 'fff1e7',
"highlight" => 'f3c07f',
"danger" => 'cfebdc',
"success" => 'fcb4b5',
"love" => 'f3c07f'
},
# By @Flower_Child
'Dark Rose': {
"primary" => 'ca9cb2',
"secondary" => '3a2a37',
"tertiary" => 'fdd459',
"quaternary" => '7e566a',
"header_background" => 'a97189',
"header_primary" => 'd9b2bb',
"highlight" => '6c3e63',
"danger" => '6c3e63',
"success" => 'd9b2bb',
"love" => 'd9b2bb'
}
}
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# rubocop:enable Layout/AlignHash
def self.base_color_scheme_colors
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base_with_hash = {}
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base_colors.each do |name, color|
base_with_hash[name] = "#{color}"
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end
list = [
{ id: 'Light', colors: base_with_hash }
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]
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CUSTOM_SCHEMES.each do |k, v|
list.push(id: k.to_s, colors: v)
end
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list
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end
def self.hex_cache
@hex_cache ||= DistributedCache.new("scheme_hex_for_name")
end
attr_accessor :is_base
has_many :color_scheme_colors, -> { order('id ASC') }, dependent: :destroy
alias_method :colors, :color_scheme_colors
before_save :bump_version
after_save :publish_discourse_stylesheet
after_save :dump_hex_cache
after_destroy :dump_hex_cache
belongs_to :theme
validates_associated :color_scheme_colors
BASE_COLORS_FILE = "#{Rails.root}/app/assets/stylesheets/common/foundation/colors.scss"
@mutex = Mutex.new
def self.base_colors
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return @base_colors if @base_colors
@mutex.synchronize do
return @base_colors if @base_colors
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base_colors = {}
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File.readlines(BASE_COLORS_FILE).each do |line|
matches = /\$([\w]+):\s*#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})(?:[;]|\s)/.match(line.strip)
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base_colors[matches[1]] = matches[2] if matches
end
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@base_colors = base_colors
end
@base_colors
end
def self.base_color_schemes
base_color_scheme_colors.map do |hash|
scheme = new(name: I18n.t("color_schemes.#{hash[:id].downcase.gsub(' ', '_')}"), base_scheme_id: hash[:id])
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scheme.colors = hash[:colors].map { |k, v| { name: k.to_s, hex: v.sub("#", "") } }
scheme.is_base = true
scheme
end
end
def self.base
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return @base_color_scheme if @base_color_scheme
@base_color_scheme = new(name: I18n.t('color_schemes.base_theme_name'))
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@base_color_scheme.colors = base_colors.map { |name, hex| { name: name, hex: hex } }
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@base_color_scheme.is_base = true
@base_color_scheme
end
# create_from_base will create a new ColorScheme that overrides Discourse's base color scheme with the given colors.
def self.create_from_base(params)
new_color_scheme = new(name: params[:name])
new_color_scheme.via_wizard = true if params[:via_wizard]
new_color_scheme.base_scheme_id = params[:base_scheme_id]
colors = CUSTOM_SCHEMES[params[:base_scheme_id].to_sym]&.map do |name, hex|
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{ name: name, hex: hex }
end if params[:base_scheme_id]
colors ||= base.colors_hashes
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# Override base values
params[:colors].each do |name, hex|
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c = colors.find { |x| x[:name].to_s == name.to_s }
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c[:hex] = hex
end if params[:colors]
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new_color_scheme.colors = colors
new_color_scheme.save
new_color_scheme
end
def self.lookup_hex_for_name(name, scheme_id = nil)
enabled_color_scheme = find_by(id: scheme_id) if scheme_id
enabled_color_scheme ||= Theme.where(id: SiteSetting.default_theme_id).first&.color_scheme
(enabled_color_scheme || base).colors.find { |c| c.name == name }.try(:hex) || "nil"
end
def self.hex_for_name(name, scheme_id = nil)
cache_key = scheme_id ? name + "_#{scheme_id}" : name
hex_cache[cache_key] ||= lookup_hex_for_name(name, scheme_id)
hex_cache[cache_key] == "nil" ? nil : hex_cache[cache_key]
end
def colors=(arr)
@colors_by_name = nil
arr.each do |c|
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self.color_scheme_colors << ColorSchemeColor.new(name: c[:name], hex: c[:hex])
end
end
def colors_by_name
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@colors_by_name ||= self.colors.inject({}) { |sum, c| sum[c.name] = c; sum; }
end
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def clear_colors_cache
@colors_by_name = nil
end
def colors_hashes
color_scheme_colors.map do |c|
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{ name: c.name, hex: c.hex }
end
end
def base_colors
colors = nil
if base_scheme_id && base_scheme_id != "Light"
colors = CUSTOM_SCHEMES[base_scheme_id.to_sym]
end
colors || ColorScheme.base_colors
end
def resolved_colors
resolved = ColorScheme.base_colors.dup
if base_scheme_id && base_scheme_id != "Light"
if scheme = CUSTOM_SCHEMES[base_scheme_id.to_sym]
scheme.each do |name, value|
resolved[name] = value
end
end
end
colors.each do |c|
resolved[c.name] = c.hex
end
resolved
end
def publish_discourse_stylesheet
if self.id
theme_ids = Theme.where(color_scheme_id: self.id).pluck(:id)
if theme_ids.present?
Stylesheet::Manager.cache.clear
Theme.notify_theme_change(
theme_ids,
with_scheme: true,
clear_manager_cache: false,
all_themes: true
)
end
end
end
def dump_hex_cache
self.class.hex_cache.clear
end
def bump_version
if self.id
self.version += 1
end
end
end
# == Schema Information
#
# Table name: color_schemes
#
# id :integer not null, primary key
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# name :string not null
# version :integer default(1), not null
# created_at :datetime not null
# updated_at :datetime not null
# via_wizard :boolean default(FALSE), not null
# base_scheme_id :string
# theme_id :integer
#