118 lines
3.2 KiB
Ruby
118 lines
3.2 KiB
Ruby
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class ThemeField < ActiveRecord::Base
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COMPILER_VERSION = 5
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belongs_to :theme
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def transpile(es6_source, version)
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template = Tilt::ES6ModuleTranspilerTemplate.new {}
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wrapped = <<PLUGIN_API_JS
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Discourse._registerPluginCode('#{version}', api => {
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#{es6_source}
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});
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PLUGIN_API_JS
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template.babel_transpile(wrapped)
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end
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def process_html(html)
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doc = Nokogiri::HTML.fragment(html)
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doc.css('script[type="text/x-handlebars"]').each do |node|
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name = node["name"] || node["data-template-name"] || "broken"
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is_raw = name =~ /\.raw$/
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if is_raw
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template = "require('discourse-common/lib/raw-handlebars').template(#{Barber::Precompiler.compile(node.inner_html)})"
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node.replace <<COMPILED
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<script>
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(function() {
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Discourse.RAW_TEMPLATES[#{name.sub(/\.raw$/, '').inspect}] = #{template};
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})();
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</script>
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COMPILED
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else
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template = "Ember.HTMLBars.template(#{Barber::Ember::Precompiler.compile(node.inner_html)})"
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node.replace <<COMPILED
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<script>
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(function() {
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Ember.TEMPLATES[#{name.inspect}] = #{template};
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})();
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</script>
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COMPILED
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end
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end
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doc.css('script[type="text/discourse-plugin"]').each do |node|
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if node['version'].present?
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begin
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code = transpile(node.inner_html, node['version'])
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node.replace("<script>#{code}</script>")
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rescue MiniRacer::RuntimeError => ex
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node.replace("<script type='text/discourse-js-error'>#{ex.message}</script>")
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end
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end
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end
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doc.to_s
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end
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def self.html_fields
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%w(body_tag head_tag header footer after_header)
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end
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def ensure_baked!
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if ThemeField.html_fields.include?(self.name)
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if !self.value_baked || compiler_version != COMPILER_VERSION
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self.value_baked = process_html(self.value)
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self.compiler_version = COMPILER_VERSION
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if self.value_baked_changed? || compiler_version.changed?
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self.update_columns(value_baked: value_baked, compiler_version: compiler_version)
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end
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end
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end
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end
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def target_name
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Theme.targets.invert[target].to_s
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end
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before_save do
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if value_changed? && !value_baked_changed?
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self.value_baked = nil
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end
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end
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after_commit do
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ensure_baked!
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Stylesheet::Manager.clear_theme_cache! if self.name.include?("scss")
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# TODO message for mobile vs desktop
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MessageBus.publish "/header-change/#{theme.key}", self.value if self.name == "header"
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MessageBus.publish "/footer-change/#{theme.key}", self.value if self.name == "footer"
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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: theme_fields
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#
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# id :integer not null, primary key
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# theme_id :integer not null
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# target :integer not null
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# name :string not null
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# value :text not null
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# value_baked :text
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# created_at :datetime
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# updated_at :datetime
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# compiler_version :integer default(0), not null
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#
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# Indexes
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#
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# index_theme_fields_on_theme_id_and_target_and_name (theme_id,target,name) UNIQUE
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#
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