# frozen_string_literal: true
module SvgSprite
SVG_ICONS ||=
Set.new(
%w[
adjust
address-book
align-left
ambulance
anchor
angle-double-down
angle-double-up
angle-double-right
angle-double-left
angle-down
angle-right
angle-up
archive
arrow-down
arrow-left
arrow-up
arrows-alt-h
arrows-alt-v
at
asterisk
backward
ban
bars
bed
bell
bell-slash
bold
book
book-reader
bookmark
briefcase
bullseye
calendar-alt
caret-down
caret-left
caret-right
caret-up
certificate
chart-bar
chart-pie
check
check-circle
check-square
chevron-circle-down
chevron-down
chevron-left
chevron-right
chevron-up
circle
cloud-upload-alt
code
cog
columns
comment
compress
copy
crosshairs
cube
desktop
discourse-amazon
discourse-bell-exclamation
discourse-bell-one
discourse-bell-slash
discourse-bookmark-clock
discourse-compress
discourse-emojis
discourse-expand
discourse-other-tab
discourse-threads
download
ellipsis-h
ellipsis-v
envelope
envelope-square
exchange-alt
exclamation-circle
exclamation-triangle
external-link-alt
eye
fab-android
fab-apple
fab-chrome
fab-discord
fab-discourse
fab-facebook-square
fab-facebook
fab-github
fab-instagram
fab-linux
fab-twitter
fab-twitter-square
fab-wikipedia-w
fab-windows
far-bell
far-bell-slash
far-calendar-plus
far-chart-bar
far-check-square
far-circle
far-clipboard
far-clock
far-comment
far-comments
far-copyright
far-dot-circle
far-edit
far-envelope
far-eye
far-eye-slash
far-file-alt
far-frown
far-heart
far-image
far-list-alt
far-meh
far-moon
far-smile
far-square
far-star
far-sun
far-thumbs-down
far-thumbs-up
far-trash-alt
fast-backward
fast-forward
file
file-alt
filter
flag
folder
folder-open
forward
gavel
gift
globe
globe-americas
grip-lines
hand-point-right
hands-helping
heart
history
home
hourglass-start
id-card
image
images
inbox
info-circle
italic
key
keyboard
layer-group
link
list
list-ol
list-ul
lock
magic
map-marker-alt
microphone-slash
minus
minus-circle
mobile-alt
moon
paint-brush
paper-plane
pause
pencil-alt
play
plug
plus
plus-circle
plus-square
power-off
puzzle-piece
question
question-circle
quote-left
quote-right
random
redo
reply
rocket
search
search-plus
search-minus
share
shield-alt
sign-in-alt
sign-out-alt
signal
sliders-h
square-full
star
step-backward
step-forward
stream
sync-alt
sync
table
tag
tags
tasks
th
thermometer-three-quarters
thumbs-down
thumbs-up
thumbtack
times
times-circle
toggle-off
toggle-on
trash-alt
undo
unlink
unlock
unlock-alt
upload
user
user-cog
user-edit
user-friends
user-plus
user-secret
user-shield
user-times
users
wrench
spinner
tippy-rounded-arrow
],
)
FA_ICON_MAP = { "far fa-" => "far-", "fab fa-" => "fab-", "fas fa-" => "", "fa-" => "" }
CORE_SVG_SPRITES = Dir.glob("#{Rails.root}/vendor/assets/svg-icons/**/*.svg")
THEME_SPRITE_VAR_NAME = "icons-sprite"
def self.preload
settings_icons
group_icons
badge_icons
end
def self.symbols_for(svg_filename, sprite, strict:)
if strict
Nokogiri.XML(sprite) { |config| config.options = Nokogiri::XML::ParseOptions::NOBLANKS }
else
Nokogiri.XML(sprite)
end.css("symbol")
.filter_map do |sym|
icon_id = prepare_symbol(sym, svg_filename)
if icon_id.present?
sym.attributes["id"].value = icon_id
sym.css("title").each(&:remove)
[icon_id, sym.to_xml]
end
end
.to_h
end
def self.core_svgs
@core_svgs ||=
CORE_SVG_SPRITES.reduce({}) do |symbols, path|
symbols.merge!(symbols_for(File.basename(path, ".svg"), File.read(path), strict: true))
end
end
# Just used in tests
def self.clear_plugin_svg_sprite_cache!
@plugin_svgs = nil
end
def self.plugin_svgs
@plugin_svgs ||=
begin
plugin_paths = []
Discourse
.plugins
.map { |plugin| File.dirname(plugin.path) }
.each { |path| plugin_paths << "#{path}/svg-icons/*.svg" }
custom_sprite_paths = Dir.glob(plugin_paths)
custom_sprite_paths.reduce({}) do |symbols, path|
symbols.merge!(symbols_for(File.basename(path, ".svg"), File.read(path), strict: true))
end
end
end
def self.theme_svgs(theme_id)
if theme_id.present?
theme_ids = Theme.transform_ids(theme_id)
get_set_cache("theme_svg_sprites_#{theme_ids.join(",")}") do
theme_field_uploads =
ThemeField.where(
type_id: ThemeField.types[:theme_upload_var],
name: THEME_SPRITE_VAR_NAME,
theme_id: theme_ids,
).pluck(:upload_id)
theme_sprites = ThemeSvgSprite.where(theme_id: theme_ids).pluck(:upload_id, :sprite)
missing_sprites = (theme_field_uploads - theme_sprites.map(&:first))
if missing_sprites.present?
Rails.logger.warn(
"Missing ThemeSvgSprites for theme #{theme_id}, uploads #{missing_sprites.join(", ")}",
)
end
theme_sprites.reduce({}) do |symbols, (upload_id, sprite)|
begin
symbols.merge!(symbols_for("theme_#{theme_id}_#{upload_id}.svg", sprite, strict: false))
rescue => e
Rails.logger.warn(
"Bad XML in custom sprite in theme with ID=#{theme_id}. Error info: #{e.inspect}",
)
end
symbols
end
end
else
{}
end
end
def self.custom_svgs(theme_id)
plugin_svgs.merge(theme_svgs(theme_id))
end
def self.all_icons(theme_id = nil)
get_set_cache("icons_#{Theme.transform_ids(theme_id).join(",")}") do
Set
.new()
.merge(settings_icons)
.merge(plugin_icons)
.merge(badge_icons)
.merge(group_icons)
.merge(theme_icons(theme_id))
.merge(custom_icons(theme_id))
.delete_if { |i| i.blank? || i.include?("/") }
.map! { |i| process(i.dup) }
.merge(SVG_ICONS)
.sort
end
end
def self.version(theme_id = nil)
get_set_cache("version_#{Theme.transform_ids(theme_id).join(",")}") do
Digest::SHA1.hexdigest(bundle(theme_id))
end
end
def self.path(theme_id = nil)
"/svg-sprite/#{Discourse.current_hostname}/svg-#{theme_id}-#{version(theme_id)}.js"
end
def self.expire_cache
cache&.clear
end
def self.svgs_for(theme_id)
svgs = core_svgs
svgs = svgs.merge(custom_svgs(theme_id)) if theme_id.present?
svgs
end
def self.bundle(theme_id = nil)
icons = all_icons(theme_id)
svg_subset =
"" \
"
"
end
def self.search(searched_icon)
searched_icon = process(searched_icon.dup)
svgs_for(SiteSetting.default_theme_id)[searched_icon] || false
end
def self.icon_picker_search(keyword, only_available = false)
icons = all_icons(SiteSetting.default_theme_id) if only_available
symbols = svgs_for(SiteSetting.default_theme_id)
symbols.slice!(*icons) if only_available
symbols.reject! { |icon_id, sym| !icon_id.include?(keyword) } unless keyword.empty?
symbols.sort_by(&:first).map { |icon_id, symbol| { id: icon_id, symbol: symbol } }
end
# For use in no_ember .html.erb layouts
def self.raw_svg(name)
get_set_cache("raw_svg_#{name}") do
symbol = search(name)
break "" unless symbol
symbol = Nokogiri.XML(symbol).children.first
symbol.name = "svg"
<<~HTML
HTML
end.html_safe
end
def self.theme_sprite_variable_name
THEME_SPRITE_VAR_NAME
end
def self.prepare_symbol(symbol, svg_filename = nil)
icon_id = symbol.attr("id")
case svg_filename
when "regular"
icon_id = icon_id.prepend("far-")
when "brands"
icon_id = icon_id.prepend("fab-")
end
icon_id
end
def self.settings_icons
get_set_cache("settings_icons") do
# includes svg_icon_subset and any settings containing _icon (incl. plugin settings)
site_setting_icons = []
SiteSetting.settings_hash.select do |key, value|
site_setting_icons |= value.split("|") if key.to_s.include?("_icon") && String === value
end
site_setting_icons
end
end
def self.plugin_icons
DiscoursePluginRegistry.svg_icons
end
def self.badge_icons
get_set_cache("badge_icons") { Badge.pluck(:icon).uniq }
end
def self.group_icons
get_set_cache("group_icons") { Group.pluck(:flair_icon).uniq }
end
def self.theme_icons(theme_id)
return [] if theme_id.blank?
theme_icon_settings = []
theme_ids = Theme.transform_ids(theme_id)
# Need to load full records for default values
Theme
.where(id: theme_ids)
.each do |theme|
_settings =
theme.cached_settings.each do |key, value|
if key.to_s.include?("_icon") && String === value
theme_icon_settings |= value.split("|")
end
end
end
theme_icon_settings |= ThemeModifierHelper.new(theme_ids: theme_ids).svg_icons
theme_icon_settings
end
def self.custom_icons(theme_id)
# Automatically register icons in sprites added via themes or plugins
custom_svgs(theme_id).keys
end
def self.process(icon_name)
icon_name = icon_name.strip
FA_ICON_MAP.each { |k, v| icon_name = icon_name.sub(k, v) }
icon_name
end
def self.get_set_cache(key, &block)
cache.defer_get_set(key, &block)
end
def self.cache
@cache ||= DistributedCache.new("svg_sprite")
end
end