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discourse/app/models/color_scheme.rb

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# frozen_string_literal: true
class ColorScheme < ActiveRecord::Base
# rubocop:disable Layout/HashAlignment
CUSTOM_SCHEMES = {
Dark: {
"primary" => "dddddd",
"secondary" => "222222",
"tertiary" => "0f82af",
"quaternary" => "c14924",
"header_background" => "111111",
"header_primary" => "dddddd",
"highlight" => "a87137",
"selected" => "2c2c2c",
"hover" => "313131",
"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",
"selected" => "e6e6e6",
"hover" => "f0f0f0",
"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",
"selected" => "272727",
"hover" => "2F2F30",
"danger" => "e45735",
"success" => "fdd459",
"love" => "fdd459",
},
# By @rafafotes
"Shades of Blue": {
"primary" => "203243",
"secondary" => "eef4f7",
"tertiary" => "416376",
"quaternary" => "5e99b9",
"header_background" => "86bddb",
"header_primary" => "203243",
"highlight" => "86bddb",
"selected" => "bee0f2",
"hover" => "d2efff",
"danger" => "bf3c3c",
"success" => "70db82",
"love" => "fc94cb",
},
# By @mikechristopher
Latte: {
"primary" => "f2e5d7",
"secondary" => "262322",
"tertiary" => "f7f2ed",
"quaternary" => "d7c9aa",
"header_background" => "d7c9aa",
"header_primary" => "262322",
"highlight" => "d7c9aa",
"selected" => "3e2a14",
"hover" => "4c3319",
"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",
"selected" => "f5eaea",
"hover" => "f9f3f3",
"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" => "bd36a3",
"selected" => "2a1620",
"hover" => "331b27",
"danger" => "6c3e63",
"success" => "d9b2bb",
"love" => "d9b2bb",
},
WCAG: {
"primary" => "000000",
"primary-medium" => "696969",
"primary-low-mid" => "909090",
"secondary" => "ffffff",
"tertiary" => "3369FF",
"quaternary" => "3369FF",
"header_background" => "ffffff",
"header_primary" => "000000",
"highlight" => "ffff00",
"highlight-high" => "0036E6",
"highlight-medium" => "e0e9ff",
"highlight-low" => "e0e9ff",
"selected" => "E2E9FE",
"hover" => "F0F4FE",
"danger" => "BB1122",
"success" => "3d854d",
"love" => "9D256B",
},
"WCAG Dark": {
"primary" => "ffffff",
"primary-medium" => "999999",
"primary-low-mid" => "888888",
"secondary" => "0c0c0c",
"tertiary" => "759AFF",
"quaternary" => "759AFF",
"header_background" => "000000",
"header_primary" => "ffffff",
"highlight" => "3369FF",
"selected" => "0d2569",
"hover" => "002382",
"danger" => "BB1122",
"success" => "3d854d",
"love" => "9D256B",
},
# By @zenorocha
Dracula: {
"primary_very_low" => "373A47",
"primary_low" => "414350",
"primary_low_mid" => "8C8D94",
"primary_medium" => "A3A4AA",
"primary_high" => "CCCCCF",
"primary" => "f2f2f2",
"primary-50" => "3F414E",
"primary-100" => "535460",
"primary-200" => "666972",
"primary-300" => "7A7C84",
"primary-400" => "8D8F96",
"primary-500" => "A2A3A9",
"primary-600" => "B6B7BC",
"primary-700" => "C7C7C7",
"primary-800" => "DEDFE0",
"primary-900" => "F5F5F5",
"secondary_low" => "CCCCCF",
"secondary_medium" => "91939A",
"secondary_high" => "6A6C76",
"secondary_very_high" => "3D404C",
"secondary" => "2d303e",
"tertiary_low" => "4A4463",
"tertiary_medium" => "6E5D92",
"tertiary" => "bd93f9",
"tertiary_high" => "9275C1",
"quaternary_low" => "6AA8BA",
"quaternary" => "8be9fd",
"header_background" => "373A47",
"header_primary" => "f2f2f2",
"highlight_low" => "686D55",
"highlight_medium" => "52592B",
"highlight_high" => "C0C879",
"selected" => "4A4463",
"hover" => "61597f",
"danger_low" => "957279",
"danger" => "ff5555",
"success_low" => "386D50",
"success_medium" => "44B366",
"success" => "50fa7b",
"love_low" => "6C4667",
"love" => "ff79c6",
},
# By @altercation
"Solarized Light": {
"primary_very_low" => "F0ECD7",
"primary_low" => "D6D8C7",
"primary_low_mid" => "A4AFA5",
"primary_medium" => "7E918C",
"primary_high" => "4C6869",
"primary" => "002B36",
"primary-50" => "F0EBDA",
"primary-100" => "DAD8CA",
"primary-200" => "B2B9B3",
"primary-300" => "839496",
"primary-400" => "76898C",
"primary-500" => "697F83",
"primary-600" => "627A7E",
"primary-700" => "556F74",
"primary-800" => "415F66",
"primary-900" => "21454E",
"secondary_low" => "325458",
"secondary_medium" => "6C8280",
"secondary_high" => "97A59D",
"secondary_very_high" => "E8E6D3",
"secondary" => "FCF6E1",
"tertiary_low" => "D6E6DE",
"tertiary_medium" => "7EBFD7",
"tertiary" => "0088cc",
"tertiary_high" => "329ED0",
"quaternary" => "e45735",
"header_background" => "FCF6E1",
"header_primary" => "002B36",
"highlight_low" => "FDF9AD",
"highlight_medium" => "E3D0A3",
"highlight" => "F2F481",
"highlight_high" => "BCAA7F",
"selected" => "E8E6D3",
"hover" => "F0EBDA",
"danger_low" => "F8D9C2",
"danger" => "e45735",
"success_low" => "CFE5B9",
"success_medium" => "4CB544",
"success" => "009900",
"love_low" => "FCDDD2",
"love" => "fa6c8d",
},
# By @altercation
"Solarized Dark": {
"primary_very_low" => "0D353F",
"primary_low" => "193F47",
"primary_low_mid" => "798C88",
"primary_medium" => "97A59D",
"primary_high" => "B5BDB1",
"primary" => "FCF6E1",
"primary-50" => "21454E",
"primary-100" => "415F66",
"primary-200" => "556F74",
"primary-300" => "627A7E",
"primary-400" => "697F83",
"primary-500" => "76898C",
"primary-600" => "839496",
"primary-700" => "B2B9B3",
"primary-800" => "DAD8CA",
"primary-900" => "F0EBDA",
"secondary_low" => "B5BDB1",
"secondary_medium" => "81938D",
"secondary_high" => "4E6A6B",
"secondary_very_high" => "143B44",
"secondary" => "002B36",
"tertiary_low" => "003E54",
"tertiary_medium" => "00557A",
"tertiary" => "0088cc",
"tertiary_high" => "006C9F",
"quaternary_low" => "944835",
"quaternary" => "e45735",
"header_background" => "002B36",
"header_primary" => "FCF6E1",
"highlight_low" => "4D6B3D",
"highlight_medium" => "464C33",
"highlight" => "F2F481",
"highlight_high" => "BFCA47",
"selected" => "143B44",
"hover" => "21454E",
"danger_low" => "443836",
"danger_medium" => "944835",
"danger" => "e45735",
"success_low" => "004C26",
"success_medium" => "007313",
"success" => "009900",
"love_low" => "4B3F50",
"love" => "fa6c8d",
},
}
# rubocop:enable Layout/HashAlignment
LIGHT_THEME_ID = "Light"
def self.base_color_scheme_colors
base_with_hash = []
base_colors.each { |name, color| base_with_hash << { name: name, hex: "#{color}" } }
list = [{ id: LIGHT_THEME_ID, colors: base_with_hash }]
CUSTOM_SCHEMES.each do |k, v|
colors = []
v.each { |name, color| colors << { name: name, hex: "#{color}" } }
list.push(id: k.to_s, colors: colors)
end
list
end
def self.hex_cache
@hex_cache ||= DistributedCache.new("scheme_hex_for_name")
end
attr_accessor :is_base
attr_accessor :skip_publish
has_many :color_scheme_colors, -> { order("id ASC") }, dependent: :destroy
alias_method :colors, :color_scheme_colors
before_save :bump_version
after_save_commit :publish_discourse_stylesheet, unless: :skip_publish
after_save_commit :dump_caches
after_destroy :dump_caches
belongs_to :theme
validates_associated :color_scheme_colors
BASE_COLORS_FILE = "#{Rails.root}/app/assets/stylesheets/common/foundation/colors.scss"
COLOR_TRANSFORMATION_FILE =
"#{Rails.root}/app/assets/stylesheets/common/foundation/color_transformations.scss"
@mutex = Mutex.new
def self.base_colors
return @base_colors if @base_colors
@mutex.synchronize do
return @base_colors if @base_colors
base_colors = {}
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)
base_colors[matches[1]] = matches[2] if matches
end
@base_colors = base_colors
end
@base_colors
end
def self.color_transformation_variables
return @transformation_variables if @transformation_variables
@mutex.synchronize do
return @transformation_variables if @transformation_variables
transformation_variables = []
File
.readlines(COLOR_TRANSFORMATION_FILE)
.each do |line|
matches = /\$([\w\-_]+):.*/.match(line.strip)
transformation_variables.append(matches[1]) if matches
end
@transformation_variables = transformation_variables
end
@transformation_variables
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],
)
scheme.colors = hash[:colors].map { |k| { name: k[:name], hex: k[:hex] } }
scheme.is_base = true
scheme
end
end
def self.base
return @base_color_scheme if @base_color_scheme
@base_color_scheme = new(name: I18n.t("color_schemes.base_theme_name"))
@base_color_scheme.colors = base_colors.map { |name, hex| { name: name, hex: hex } }
@base_color_scheme.is_base = true
@base_color_scheme
end
def self.is_base?(scheme_name)
base_color_scheme_colors.map { |c| c[:id] }.include?(scheme_name)
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]
new_color_scheme.user_selectable = true
colors =
CUSTOM_SCHEMES[params[:base_scheme_id].to_sym]&.map do |name, hex|
{ name: name, hex: hex }
end if params[:base_scheme_id]
colors ||= base.colors_hashes
# Override base values
params[:colors].each do |name, hex|
c = colors.find { |x| x[:name].to_s == name.to_s }
c[:hex] = hex
end if params[:colors]
new_color_scheme.colors = colors
new_color_scheme.skip_publish if params[:skip_publish]
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 { |c| self.color_scheme_colors << ColorSchemeColor.new(name: c[:name], hex: c[:hex]) }
end
def colors_by_name
@colors_by_name ||=
self
.colors
.inject({}) do |sum, c|
sum[c.name] = c
sum
end
end
def clear_colors_cache
@colors_by_name = nil
end
def colors_hashes
color_scheme_colors.map { |c| { name: c.name, hex: c.hex } }
end
def base_colors
colors = nil
colors = CUSTOM_SCHEMES[base_scheme_id.to_sym] if base_scheme_id && base_scheme_id != "Light"
colors || ColorScheme.base_colors
end
def resolved_colors
from_base = ColorScheme.base_colors
from_custom_scheme = base_colors
from_db = colors.map { |c| [c.name, c.hex] }.to_h
resolved = from_base.merge(from_custom_scheme).except("hover", "selected").merge(from_db)
# Equivalent to primary-100 in light mode, or primary-low in dark mode
resolved["hover"] ||= ColorMath.dark_light_diff(
resolved["primary"],
resolved["secondary"],
0.94,
-0.78,
)
# Equivalent to primary-low in light mode, or primary-100 in dark mode
resolved["selected"] ||= ColorMath.dark_light_diff(
resolved["primary"],
resolved["secondary"],
0.9,
-0.8,
)
resolved
end
def publish_discourse_stylesheet
self.class.publish_discourse_stylesheets!(self.id) if self.id
end
def self.publish_discourse_stylesheets!(id = nil)
Stylesheet::Manager.clear_color_scheme_cache!
theme_ids = []
if id
theme_ids = Theme.where(color_scheme_id: id).pluck(:id)
else
theme_ids = Theme.all.pluck(:id)
end
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
def dump_caches
self.class.hex_cache.clear
ApplicationSerializer.expire_cache_fragment!("user_color_schemes")
end
def bump_version
self.version += 1 if self.id
end
def is_dark?
return if colors.to_a.empty?
primary_b = ColorMath.brightness(resolved_colors["primary"])
secondary_b = ColorMath.brightness(resolved_colors["secondary"])
primary_b > secondary_b
end
def is_wcag?
base_scheme_id&.start_with?("WCAG")
end
end
# == Schema Information
#
# Table name: color_schemes
#
# id :integer not null, primary key
# 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
# user_selectable :boolean default(FALSE), not null
#
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