165 lines
4.3 KiB
Ruby
165 lines
4.3 KiB
Ruby
require_dependency 'sass/discourse_stylesheets'
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require_dependency 'distributed_cache'
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class ColorScheme < ActiveRecord::Base
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def self.themes
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base_with_hash = {}
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base_colors.each do |name, color|
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base_with_hash[name] = "##{color}"
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end
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[
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{ id: 'default', colors: base_with_hash },
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{
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id: 'dark',
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colors: {
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"primary" => '#dddddd',
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"secondary" => '#222222',
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"tertiary" => '#0f82af',
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"quaternary" => '#c14924',
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"header_background" => '#111111',
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"header_primary" => '#333333',
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"highlight" => '#a87137',
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"danger" => '#e45735',
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"success" => '#1ca551',
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"love" => '#fa6c8d'
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}
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}
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]
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end
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def self.hex_cache
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@hex_cache ||= DistributedCache.new("scheme_hex_for_name")
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end
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attr_accessor :is_base
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has_many :color_scheme_colors, -> { order('id ASC') }, dependent: :destroy
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alias_method :colors, :color_scheme_colors
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scope :current_version, ->{ where(versioned_id: nil) }
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after_destroy :destroy_versions
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after_save :publish_discourse_stylesheet
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after_save :dump_hex_cache
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after_destroy :dump_hex_cache
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validates_associated :color_scheme_colors
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BASE_COLORS_FILE = "#{Rails.root}/app/assets/stylesheets/common/foundation/colors.scss"
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@mutex = Mutex.new
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def self.base_colors
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@mutex.synchronize do
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return @base_colors if @base_colors
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@base_colors = {}
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File.readlines(BASE_COLORS_FILE).each do |line|
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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
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end
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end
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@base_colors
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end
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def self.enabled
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current_version.find_by(enabled: true)
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end
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def self.base
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return @base_color_scheme if @base_color_scheme
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@base_color_scheme = new(name: I18n.t('color_schemes.base_theme_name'), enabled: false)
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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
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@base_color_scheme
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end
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# create_from_base will create a new ColorScheme that overrides Discourse's base color scheme with the given colors.
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def self.create_from_base(params)
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new_color_scheme = new(name: params[:name])
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colors = base.colors_hashes
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# Override base values
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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
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end
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new_color_scheme.colors = colors
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new_color_scheme.save
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new_color_scheme
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end
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def self.lookup_hex_for_name(name)
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Discourse.plugin_themes.each do |pt|
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if pt.color_scheme
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found = pt.color_scheme[name.to_sym]
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return found if found
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end
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end
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# Can't use `where` here because base doesn't allow it
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(enabled || base).colors.find {|c| c.name == name }.try(:hex) || :nil
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end
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def self.hex_for_name(name)
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hex_cache[name] ||= lookup_hex_for_name(name)
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hex_cache[name] == :nil ? nil : hex_cache[name]
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end
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def colors=(arr)
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@colors_by_name = nil
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arr.each do |c|
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self.color_scheme_colors << ColorSchemeColor.new( name: c[:name], hex: c[:hex] )
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end
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end
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def colors_by_name
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@colors_by_name ||= self.colors.inject({}) { |sum,c| sum[c.name] = c; sum; }
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end
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def clear_colors_cache
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@colors_by_name = nil
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end
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def colors_hashes
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color_scheme_colors.map do |c|
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{name: c.name, hex: c.hex}
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end
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end
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def previous_version
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ColorScheme.where(versioned_id: self.id).where('version < ?', self.version).order('version DESC').first
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end
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def destroy_versions
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ColorScheme.where(versioned_id: self.id).destroy_all
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end
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def publish_discourse_stylesheet
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MessageBus.publish("/discourse_stylesheet", self.name)
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DiscourseStylesheets.cache.clear
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end
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def dump_hex_cache
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self.class.hex_cache.clear
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end
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end
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# == Schema Information
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#
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# Table name: color_schemes
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#
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# id :integer not null, primary key
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# name :string not null
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# enabled :boolean default(FALSE), not null
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# versioned_id :integer
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# version :integer default(1), not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# via_wizard :boolean default(FALSE), not null
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# theme_id :string
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#
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