2014-12-22 19:12:26 -05:00
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class Emoji
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2016-03-07 13:47:40 -05:00
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# update this to clear the cache
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2017-03-14 03:31:01 -04:00
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EMOJI_VERSION = "v3"
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2016-03-07 13:47:40 -05:00
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2014-12-22 19:12:26 -05:00
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include ActiveModel::SerializerSupport
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attr_reader :path
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attr_accessor :name, :url
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# whitelist emojis so that new user can post emojis
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Post::white_listed_image_classes << "emoji"
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def initialize(path = nil)
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@path = path
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end
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def self.all
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2016-07-22 12:59:43 -04:00
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Discourse.cache.fetch(cache_key("all_emojis")) { standard | custom }
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2014-12-22 19:12:26 -05:00
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end
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def self.standard
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2016-07-22 12:59:43 -04:00
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Discourse.cache.fetch(cache_key("standard_emojis")) { load_standard }
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2014-12-22 19:12:26 -05:00
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end
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2015-03-16 13:28:11 -04:00
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def self.aliases
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2016-07-22 12:59:43 -04:00
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Discourse.cache.fetch(cache_key("aliases_emojis")) { load_aliases }
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2015-03-16 13:28:11 -04:00
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end
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2014-12-22 19:12:26 -05:00
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def self.custom
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2016-07-22 12:59:43 -04:00
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Discourse.cache.fetch(cache_key("custom_emojis")) { load_custom }
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2014-12-22 19:12:26 -05:00
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end
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2015-02-09 12:54:57 -05:00
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def self.exists?(name)
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Emoji[name].present?
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end
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def self.[](name)
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Emoji.custom.detect { |e| e.name == name }
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end
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2014-12-22 19:12:26 -05:00
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def self.create_from_db_item(emoji)
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2016-03-04 14:20:44 -05:00
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name = emoji["name"]
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filename = "#{emoji['filename'] || name}.png"
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2014-12-22 19:12:26 -05:00
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Emoji.new.tap do |e|
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e.name = name
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e.url = "/images/emoji/#{SiteSetting.emoji_set}/#{filename}"
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end
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end
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2016-07-22 12:59:43 -04:00
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def self.cache_key(name)
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"#{name}:#{EMOJI_VERSION}:#{Plugin::CustomEmoji.cache_key}"
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end
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2014-12-22 19:12:26 -05:00
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def self.clear_cache
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2016-07-22 12:59:43 -04:00
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Discourse.cache.delete(cache_key("custom_emojis"))
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Discourse.cache.delete(cache_key("standard_emojis"))
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Discourse.cache.delete(cache_key("aliases_emojis"))
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Discourse.cache.delete(cache_key("all_emojis"))
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2014-12-22 19:12:26 -05:00
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end
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def self.db_file
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2015-01-23 18:07:39 -05:00
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"#{Rails.root}/lib/emoji/db.json"
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2014-12-22 19:12:26 -05:00
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end
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2015-03-16 13:28:11 -04:00
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def self.db
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return @db if @db
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@db = File.open(db_file, "r:UTF-8") { |f| JSON.parse(f.read) }
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# Small tweak to `emoji.json` from Emoji one
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@db['emojis'] << {"code" => "1f44d", "name" => "+1", "filename" => "thumbsup"}
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@db['emojis'] << {"code" => "1f44e", "name" => "-1", "filename" => "thumbsdown"}
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@db
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end
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2014-12-22 19:12:26 -05:00
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def self.load_standard
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db['emojis'].map {|e| Emoji.create_from_db_item(e) }
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end
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def self.load_aliases
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return @aliases if @aliases
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2016-03-04 14:20:44 -05:00
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@aliases ||= db['aliases']
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2016-03-04 14:20:44 -05:00
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# Fix how `slightly_smiling` was mislabeled
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@aliases['slight_smile'] ||= []
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@aliases['slight_smile'] << 'slightly_smiling'
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@aliases
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2014-12-22 19:12:26 -05:00
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end
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def self.load_custom
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2016-07-22 12:59:43 -04:00
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result = []
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2017-02-02 04:41:57 -05:00
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CustomEmoji.all.each do |emoji|
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result << Emoji.new.tap do |e|
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e.name = emoji.name
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e.url = emoji.upload.url
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end
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end
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2016-07-22 12:59:43 -04:00
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Plugin::CustomEmoji.emojis.each do |name, url|
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result << Emoji.new.tap do |e|
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e.name = name
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e.url = url
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end
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end
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result
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2014-12-22 19:12:26 -05:00
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end
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def self.base_directory
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"public#{base_url}"
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2014-12-22 19:12:26 -05:00
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end
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def self.base_url
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db = RailsMultisite::ConnectionManagement.current_db
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"#{Discourse.base_uri}/uploads/#{db}/_emoji"
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2014-12-22 19:12:26 -05:00
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end
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2016-07-05 13:55:21 -04:00
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def self.replacement_code(code)
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hexes = code.split('-').map(&:hex)
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# Don't replace digits, letters and some symbols
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return hexes.pack("U" * hexes.size) if hexes[0] > 255
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end
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2015-12-30 14:35:25 -05:00
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def self.unicode_replacements
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return @unicode_replacements if @unicode_replacements
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2016-03-04 14:20:44 -05:00
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@unicode_replacements = {}
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db['emojis'].each do |e|
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2016-07-05 13:55:21 -04:00
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next if e['name'] == 'tm'
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code = replacement_code(e['code'])
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@unicode_replacements[code] = e['name'] if code
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2016-03-04 14:20:44 -05:00
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end
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2015-12-30 14:46:52 -05:00
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@unicode_replacements["\u{2639}"] = 'frowning'
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2016-03-04 14:20:44 -05:00
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@unicode_replacements["\u{263A}"] = 'slight_smile'
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@unicode_replacements["\u{263B}"] = 'slight_smile'
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@unicode_replacements["\u{2661}"] = 'heart'
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@unicode_replacements["\u{2665}"] = 'heart'
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@unicode_replacements
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end
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2016-10-10 22:03:21 -04:00
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def self.lookup_unicode(name)
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@reverse_map ||= begin
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map = {}
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db['emojis'].each do |e|
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next if e['name'] == 'tm'
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code = replacement_code(e['code'])
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map[e['name']] = code if code
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end
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map
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end
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@reverse_map[name]
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end
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2016-03-02 14:31:32 -05:00
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def self.unicode_replacements_json
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@unicode_replacements_json ||= unicode_replacements.to_json
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end
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2014-12-22 19:12:26 -05:00
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end
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