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-rw-r--r--actiontext/lib/action_text.rb37
-rw-r--r--actiontext/lib/action_text/attachable.rb82
-rw-r--r--actiontext/lib/action_text/attachables/content_attachment.rb38
-rw-r--r--actiontext/lib/action_text/attachables/missing_attachable.rb13
-rw-r--r--actiontext/lib/action_text/attachables/remote_image.rb46
-rw-r--r--actiontext/lib/action_text/attachment.rb103
-rw-r--r--actiontext/lib/action_text/attachment_gallery.rb65
-rw-r--r--actiontext/lib/action_text/attachments/caching.rb16
-rw-r--r--actiontext/lib/action_text/attachments/minification.rb17
-rw-r--r--actiontext/lib/action_text/attachments/trix_conversion.rb34
-rw-r--r--actiontext/lib/action_text/attribute.rb48
-rw-r--r--actiontext/lib/action_text/content.rb132
-rw-r--r--actiontext/lib/action_text/engine.rb50
-rw-r--r--actiontext/lib/action_text/fragment.rb57
-rw-r--r--actiontext/lib/action_text/gem_version.rb17
-rw-r--r--actiontext/lib/action_text/html_conversion.rb24
-rw-r--r--actiontext/lib/action_text/plain_text_conversion.rb81
-rw-r--r--actiontext/lib/action_text/serialization.rb34
-rw-r--r--actiontext/lib/action_text/trix_attachment.rb92
-rw-r--r--actiontext/lib/action_text/version.rb10
-rw-r--r--actiontext/lib/tasks/actiontext.rake20
-rw-r--r--actiontext/lib/templates/actiontext.scss36
-rw-r--r--actiontext/lib/templates/fixtures.yml4
-rw-r--r--actiontext/lib/templates/installer.rb22
24 files changed, 1078 insertions, 0 deletions
diff --git a/actiontext/lib/action_text.rb b/actiontext/lib/action_text.rb
new file mode 100644
index 0000000000..0dd6318f89
--- /dev/null
+++ b/actiontext/lib/action_text.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require "active_support"
+require "active_support/rails"
+
+require "nokogiri"
+
+module ActionText
+ extend ActiveSupport::Autoload
+
+ autoload :Attachable
+ autoload :AttachmentGallery
+ autoload :Attachment
+ autoload :Attribute
+ autoload :Content
+ autoload :Fragment
+ autoload :HtmlConversion
+ autoload :PlainTextConversion
+ autoload :Serialization
+ autoload :TrixAttachment
+
+ module Attachables
+ extend ActiveSupport::Autoload
+
+ autoload :ContentAttachment
+ autoload :MissingAttachable
+ autoload :RemoteImage
+ end
+
+ module Attachments
+ extend ActiveSupport::Autoload
+
+ autoload :Caching
+ autoload :Minification
+ autoload :TrixConversion
+ end
+end
diff --git a/actiontext/lib/action_text/attachable.rb b/actiontext/lib/action_text/attachable.rb
new file mode 100644
index 0000000000..38cd24aa8d
--- /dev/null
+++ b/actiontext/lib/action_text/attachable.rb
@@ -0,0 +1,82 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachable
+ extend ActiveSupport::Concern
+
+ LOCATOR_NAME = "attachable"
+
+ class << self
+ def from_node(node)
+ if attachable = attachable_from_sgid(node["sgid"])
+ attachable
+ elsif attachable = ActionText::Attachables::ContentAttachment.from_node(node)
+ attachable
+ elsif attachable = ActionText::Attachables::RemoteImage.from_node(node)
+ attachable
+ else
+ ActionText::Attachables::MissingAttachable
+ end
+ end
+
+ def from_attachable_sgid(sgid, options = {})
+ method = sgid.is_a?(Array) ? :locate_many_signed : :locate_signed
+ record = GlobalID::Locator.public_send(method, sgid, options.merge(for: LOCATOR_NAME))
+ record || raise(ActiveRecord::RecordNotFound)
+ end
+
+ private
+ def attachable_from_sgid(sgid)
+ from_attachable_sgid(sgid)
+ rescue ActiveRecord::RecordNotFound
+ nil
+ end
+ end
+
+ class_methods do
+ def from_attachable_sgid(sgid)
+ ActionText::Attachable.from_attachable_sgid(sgid, only: self)
+ end
+ end
+
+ def attachable_sgid
+ to_sgid(expires_in: nil, for: LOCATOR_NAME).to_s
+ end
+
+ def attachable_content_type
+ try(:content_type) || "application/octet-stream"
+ end
+
+ def attachable_filename
+ filename.to_s if respond_to?(:filename)
+ end
+
+ def attachable_filesize
+ try(:byte_size) || try(:filesize)
+ end
+
+ def attachable_metadata
+ try(:metadata) || {}
+ end
+
+ def previewable_attachable?
+ false
+ end
+
+ def as_json(*)
+ super.merge(attachable_sgid: attachable_sgid)
+ end
+
+ def to_rich_text_attributes(attributes = {})
+ attributes.dup.tap do |attrs|
+ attrs[:sgid] = attachable_sgid
+ attrs[:content_type] = attachable_content_type
+ attrs[:previewable] = true if previewable_attachable?
+ attrs[:filename] = attachable_filename
+ attrs[:filesize] = attachable_filesize
+ attrs[:width] = attachable_metadata[:width]
+ attrs[:height] = attachable_metadata[:height]
+ end.compact
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachables/content_attachment.rb b/actiontext/lib/action_text/attachables/content_attachment.rb
new file mode 100644
index 0000000000..804f74713f
--- /dev/null
+++ b/actiontext/lib/action_text/attachables/content_attachment.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachables
+ class ContentAttachment
+ include ActiveModel::Model
+
+ def self.from_node(node)
+ if node["content-type"]
+ if matches = node["content-type"].match(/vnd\.rubyonrails\.(.+)\.html/)
+ attachment = new(name: matches[1])
+ attachment if attachment.valid?
+ end
+ end
+ end
+
+ attr_accessor :name
+ validates_inclusion_of :name, in: %w( horizontal-rule )
+
+ def attachable_plain_text_representation(caption)
+ case name
+ when "horizontal-rule"
+ " ┄ "
+ else
+ " "
+ end
+ end
+
+ def to_partial_path
+ "action_text/attachables/content_attachment"
+ end
+
+ def to_trix_content_attachment_partial_path
+ "action_text/attachables/content_attachments/#{name.underscore}"
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachables/missing_attachable.rb b/actiontext/lib/action_text/attachables/missing_attachable.rb
new file mode 100644
index 0000000000..2f3bd40563
--- /dev/null
+++ b/actiontext/lib/action_text/attachables/missing_attachable.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachables
+ module MissingAttachable
+ extend ActiveModel::Naming
+
+ def self.to_partial_path
+ "action_text/attachables/missing_attachable"
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachables/remote_image.rb b/actiontext/lib/action_text/attachables/remote_image.rb
new file mode 100644
index 0000000000..650b11862b
--- /dev/null
+++ b/actiontext/lib/action_text/attachables/remote_image.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachables
+ class RemoteImage
+ extend ActiveModel::Naming
+
+ class << self
+ def from_node(node)
+ if node["url"] && content_type_is_image?(node["content-type"])
+ new(attributes_from_node(node))
+ end
+ end
+
+ private
+ def content_type_is_image?(content_type)
+ content_type.to_s =~ /^image(\/.+|$)/
+ end
+
+ def attributes_from_node(node)
+ { url: node["url"],
+ content_type: node["content-type"],
+ width: node["width"],
+ height: node["height"] }
+ end
+ end
+
+ attr_reader :url, :content_type, :width, :height
+
+ def initialize(attributes = {})
+ @url = attributes[:url]
+ @content_type = attributes[:content_type]
+ @width = attributes[:width]
+ @height = attributes[:height]
+ end
+
+ def attachable_plain_text_representation(caption)
+ "[#{caption || "Image"}]"
+ end
+
+ def to_partial_path
+ "action_text/attachables/remote_image"
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachment.rb b/actiontext/lib/action_text/attachment.rb
new file mode 100644
index 0000000000..e90a3e7d48
--- /dev/null
+++ b/actiontext/lib/action_text/attachment.rb
@@ -0,0 +1,103 @@
+# frozen_string_literal: true
+
+module ActionText
+ class Attachment
+ include Attachments::TrixConversion, Attachments::Minification, Attachments::Caching
+
+ TAG_NAME = "action-text-attachment"
+ SELECTOR = TAG_NAME
+ ATTRIBUTES = %w( sgid content-type url href filename filesize width height previewable presentation caption )
+
+ class << self
+ def fragment_by_canonicalizing_attachments(content)
+ fragment_by_minifying_attachments(fragment_by_converting_trix_attachments(content))
+ end
+
+ def from_node(node, attachable = nil)
+ new(node, attachable || ActionText::Attachable.from_node(node))
+ end
+
+ def from_attachables(attachables)
+ Array(attachables).map { |attachable| from_attachable(attachable) }.compact
+ end
+
+ def from_attachable(attachable, attributes = {})
+ if node = node_from_attributes(attachable.to_rich_text_attributes(attributes))
+ new(node, attachable)
+ end
+ end
+
+ def from_attributes(attributes, attachable = nil)
+ if node = node_from_attributes(attributes)
+ from_node(node, attachable)
+ end
+ end
+
+ private
+ def node_from_attributes(attributes)
+ if attributes = process_attributes(attributes).presence
+ ActionText::HtmlConversion.create_element(TAG_NAME, attributes)
+ end
+ end
+
+ def process_attributes(attributes)
+ attributes.transform_keys { |key| key.to_s.underscore.dasherize }.slice(*ATTRIBUTES)
+ end
+ end
+
+ attr_reader :node, :attachable
+
+ delegate :to_param, to: :attachable
+ delegate_missing_to :attachable
+
+ def initialize(node, attachable)
+ @node = node
+ @attachable = attachable
+ end
+
+ def caption
+ node_attributes["caption"].presence
+ end
+
+ def full_attributes
+ node_attributes.merge(attachable_attributes).merge(sgid_attributes)
+ end
+
+ def with_full_attributes
+ self.class.from_attributes(full_attributes, attachable)
+ end
+
+ def to_plain_text
+ if respond_to?(:attachable_plain_text_representation)
+ attachable_plain_text_representation(caption)
+ else
+ caption.to_s
+ end
+ end
+
+ def to_html
+ HtmlConversion.node_to_html(node)
+ end
+
+ def to_s
+ to_html
+ end
+
+ def inspect
+ "#<#{self.class.name} attachable=#{attachable.inspect}>"
+ end
+
+ private
+ def node_attributes
+ @node_attributes ||= ATTRIBUTES.map { |name| [ name.underscore, node[name] ] }.to_h.compact
+ end
+
+ def attachable_attributes
+ @attachable_attributes ||= (attachable.try(:to_rich_text_attributes) || {}).stringify_keys
+ end
+
+ def sgid_attributes
+ @sgid_attributes ||= node_attributes.slice("sgid").presence || attachable_attributes.slice("sgid")
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachment_gallery.rb b/actiontext/lib/action_text/attachment_gallery.rb
new file mode 100644
index 0000000000..45afbff058
--- /dev/null
+++ b/actiontext/lib/action_text/attachment_gallery.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+module ActionText
+ class AttachmentGallery
+ include ActiveModel::Model
+
+ class << self
+ def fragment_by_canonicalizing_attachment_galleries(content)
+ fragment_by_replacing_attachment_gallery_nodes(content) do |node|
+ "<#{TAG_NAME}>#{node.inner_html}</#{TAG_NAME}>"
+ end
+ end
+
+ def fragment_by_replacing_attachment_gallery_nodes(content)
+ Fragment.wrap(content).update do |source|
+ find_attachment_gallery_nodes(source).each do |node|
+ node.replace(yield(node).to_s)
+ end
+ end
+ end
+
+ def find_attachment_gallery_nodes(content)
+ Fragment.wrap(content).find_all(SELECTOR).select do |node|
+ node.children.all? do |child|
+ if child.text?
+ child.text =~ /\A(\n|\ )*\z/
+ else
+ child.matches? ATTACHMENT_SELECTOR
+ end
+ end
+ end
+ end
+
+ def from_node(node)
+ new(node)
+ end
+ end
+
+ attr_reader :node
+
+ def initialize(node)
+ @node = node
+ end
+
+ def attachments
+ @attachments ||= node.css(ATTACHMENT_SELECTOR).map do |node|
+ ActionText::Attachment.from_node(node).with_full_attributes
+ end
+ end
+
+ def size
+ attachments.size
+ end
+
+ def inspect
+ "#<#{self.class.name} size=#{size.inspect}>"
+ end
+
+ TAG_NAME = "div"
+ ATTACHMENT_SELECTOR = "#{ActionText::Attachment::SELECTOR}[presentation=gallery]"
+ SELECTOR = "#{TAG_NAME}:has(#{ATTACHMENT_SELECTOR} + #{ATTACHMENT_SELECTOR})"
+
+ private_constant :TAG_NAME, :ATTACHMENT_SELECTOR, :SELECTOR
+ end
+end
diff --git a/actiontext/lib/action_text/attachments/caching.rb b/actiontext/lib/action_text/attachments/caching.rb
new file mode 100644
index 0000000000..7c727bfc26
--- /dev/null
+++ b/actiontext/lib/action_text/attachments/caching.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachments
+ module Caching
+ def cache_key(*args)
+ [self.class.name, cache_digest, *attachable.cache_key(*args)].join("/")
+ end
+
+ private
+ def cache_digest
+ Digest::SHA256.hexdigest(node.to_s)
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachments/minification.rb b/actiontext/lib/action_text/attachments/minification.rb
new file mode 100644
index 0000000000..edc8f876d6
--- /dev/null
+++ b/actiontext/lib/action_text/attachments/minification.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachments
+ module Minification
+ extend ActiveSupport::Concern
+
+ class_methods do
+ def fragment_by_minifying_attachments(content)
+ Fragment.wrap(content).replace(ActionText::Attachment::SELECTOR) do |node|
+ node.tap { |n| n.inner_html = "" }
+ end
+ end
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attachments/trix_conversion.rb b/actiontext/lib/action_text/attachments/trix_conversion.rb
new file mode 100644
index 0000000000..24937d6c22
--- /dev/null
+++ b/actiontext/lib/action_text/attachments/trix_conversion.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attachments
+ module TrixConversion
+ extend ActiveSupport::Concern
+
+ class_methods do
+ def fragment_by_converting_trix_attachments(content)
+ Fragment.wrap(content).replace(TrixAttachment::SELECTOR) do |node|
+ from_trix_attachment(TrixAttachment.new(node))
+ end
+ end
+
+ def from_trix_attachment(trix_attachment)
+ from_attributes(trix_attachment.attributes)
+ end
+ end
+
+ def to_trix_attachment(content = trix_attachment_content)
+ attributes = full_attributes.dup
+ attributes["content"] = content if content
+ TrixAttachment.from_attributes(attributes)
+ end
+
+ private
+ def trix_attachment_content
+ if partial_path = attachable.try(:to_trix_content_attachment_partial_path)
+ ActionText::Content.renderer.render(partial: partial_path, object: self, as: model_name.element)
+ end
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/attribute.rb b/actiontext/lib/action_text/attribute.rb
new file mode 100644
index 0000000000..f226dd21bd
--- /dev/null
+++ b/actiontext/lib/action_text/attribute.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Attribute
+ extend ActiveSupport::Concern
+
+ class_methods do
+ # Provides access to a dependent RichText model that holds the body and attachments for a single named rich text attribute.
+ # This dependent attribute is lazily instantiated and will be auto-saved when it's been changed. Example:
+ #
+ # class Message < ActiveRecord::Base
+ # has_rich_text :content
+ # end
+ #
+ # message = Message.create!(content: "<h1>Funny times!</h1>")
+ # message.content.to_s # => "<h1>Funny times!</h1>"
+ # message.content.to_plain_text # => "Funny times!"
+ #
+ # The dependent RichText model will also automatically process attachments links as sent via the Trix-powered editor.
+ # These attachments are associated with the RichText model using Active Storage.
+ #
+ # If you wish to preload the dependent RichText model, you can use the named scope:
+ #
+ # Message.all.with_rich_text_content # Avoids N+1 queries when you just want the body, not the attachments.
+ # Message.all.with_rich_text_content_and_embeds # Avoids N+1 queries when you just want the body and attachments.
+ def has_rich_text(name)
+ class_eval <<-CODE, __FILE__, __LINE__ + 1
+ def #{name}
+ self.rich_text_#{name} ||= ActionText::RichText.new(name: "#{name}", record: self)
+ end
+
+ def #{name}=(body)
+ self.#{name}.body = body
+ end
+ CODE
+
+ has_one :"rich_text_#{name}", -> { where(name: name) }, class_name: "ActionText::RichText", as: :record, inverse_of: :record, dependent: :destroy
+
+ scope :"with_rich_text_#{name}", -> { includes("rich_text_#{name}") }
+ scope :"with_rich_text_#{name}_and_embeds", -> { includes("rich_text_#{name}": { embeds_attachments: :blob }) }
+
+ after_save do
+ public_send(name).save if public_send(name).changed?
+ end
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/content.rb b/actiontext/lib/action_text/content.rb
new file mode 100644
index 0000000000..16bc6fe031
--- /dev/null
+++ b/actiontext/lib/action_text/content.rb
@@ -0,0 +1,132 @@
+# frozen_string_literal: true
+
+require "active_support/core_ext/module/attribute_accessors_per_thread"
+
+module ActionText
+ class Content
+ include Serialization
+
+ thread_cattr_accessor :renderer
+
+ attr_reader :fragment
+
+ delegate :blank?, :empty?, :html_safe, :present?, to: :to_html # Delegating to to_html to avoid including the layout
+
+ class << self
+ def fragment_by_canonicalizing_content(content)
+ fragment = ActionText::Attachment.fragment_by_canonicalizing_attachments(content)
+ fragment = ActionText::AttachmentGallery.fragment_by_canonicalizing_attachment_galleries(fragment)
+ fragment
+ end
+ end
+
+ def initialize(content = nil, options = {})
+ options.with_defaults! canonicalize: true
+
+ if options[:canonicalize]
+ @fragment = self.class.fragment_by_canonicalizing_content(content)
+ else
+ @fragment = ActionText::Fragment.wrap(content)
+ end
+ end
+
+ def links
+ @links ||= fragment.find_all("a[href]").map { |a| a["href"] }.uniq
+ end
+
+ def attachments
+ @attachments ||= attachment_nodes.map do |node|
+ attachment_for_node(node)
+ end
+ end
+
+ def attachment_galleries
+ @attachment_galleries ||= attachment_gallery_nodes.map do |node|
+ attachment_gallery_for_node(node)
+ end
+ end
+
+ def gallery_attachments
+ @gallery_attachments ||= attachment_galleries.flat_map(&:attachments)
+ end
+
+ def attachables
+ @attachables ||= attachment_nodes.map do |node|
+ ActionText::Attachable.from_node(node)
+ end
+ end
+
+ def append_attachables(attachables)
+ attachments = ActionText::Attachment.from_attachables(attachables)
+ self.class.new([self.to_s.presence, *attachments].compact.join("\n"))
+ end
+
+ def render_attachments(**options, &block)
+ content = fragment.replace(ActionText::Attachment::SELECTOR) do |node|
+ block.call(attachment_for_node(node, **options))
+ end
+ self.class.new(content, canonicalize: false)
+ end
+
+ def render_attachment_galleries(&block)
+ content = ActionText::AttachmentGallery.fragment_by_replacing_attachment_gallery_nodes(fragment) do |node|
+ block.call(attachment_gallery_for_node(node))
+ end
+ self.class.new(content, canonicalize: false)
+ end
+
+ def to_plain_text
+ render_attachments(with_full_attributes: false, &:to_plain_text).fragment.to_plain_text
+ end
+
+ def to_trix_html
+ render_attachments(&:to_trix_attachment).to_html
+ end
+
+ def to_html
+ fragment.to_html
+ end
+
+ def to_rendered_html_with_layout
+ renderer.render(partial: "action_text/content/layout", locals: { content: self })
+ end
+
+ def to_s
+ to_rendered_html_with_layout
+ end
+
+ def as_json(*)
+ to_html
+ end
+
+ def inspect
+ "#<#{self.class.name} #{to_s.truncate(25).inspect}>"
+ end
+
+ def ==(other)
+ if other.is_a?(self.class)
+ to_s == other.to_s
+ end
+ end
+
+ private
+ def attachment_nodes
+ @attachment_nodes ||= fragment.find_all(ActionText::Attachment::SELECTOR)
+ end
+
+ def attachment_gallery_nodes
+ @attachment_gallery_nodes ||= ActionText::AttachmentGallery.find_attachment_gallery_nodes(fragment)
+ end
+
+ def attachment_for_node(node, with_full_attributes: true)
+ attachment = ActionText::Attachment.from_node(node)
+ with_full_attributes ? attachment.with_full_attributes : attachment
+ end
+
+ def attachment_gallery_for_node(node)
+ ActionText::AttachmentGallery.from_node(node)
+ end
+ end
+end
+
+ActiveSupport.run_load_hooks :action_text_content, ActionText::Content
diff --git a/actiontext/lib/action_text/engine.rb b/actiontext/lib/action_text/engine.rb
new file mode 100644
index 0000000000..51ff5b575b
--- /dev/null
+++ b/actiontext/lib/action_text/engine.rb
@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+require "rails"
+require "action_controller/railtie"
+require "active_record/railtie"
+require "active_storage/engine"
+
+require "action_text"
+
+module ActionText
+ class Engine < Rails::Engine
+ isolate_namespace ActionText
+ config.eager_load_namespaces << ActionText
+
+ initializer "action_text.attribute" do
+ ActiveSupport.on_load(:active_record) do
+ include ActionText::Attribute
+ end
+ end
+
+ initializer "action_text.attachable" do
+ ActiveSupport.on_load(:active_storage_blob) do
+ include ActionText::Attachable
+
+ def previewable_attachable?
+ representable?
+ end
+ end
+ end
+
+ initializer "action_text.helper" do
+ ActiveSupport.on_load(:action_controller_base) do
+ helper ActionText::Engine.helpers
+ end
+ end
+
+ initializer "action_text.renderer" do |app|
+ app.executor.to_run { ActionText::Content.renderer = ApplicationController.renderer }
+ app.executor.to_complete { ActionText::Content.renderer = ApplicationController.renderer }
+
+ ActiveSupport.on_load(:action_text_content) do
+ self.renderer = ApplicationController.renderer
+ end
+
+ ActiveSupport.on_load(:action_controller_base) do
+ before_action { ActionText::Content.renderer = ApplicationController.renderer.new(request.env) }
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/fragment.rb b/actiontext/lib/action_text/fragment.rb
new file mode 100644
index 0000000000..af276b2b26
--- /dev/null
+++ b/actiontext/lib/action_text/fragment.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+module ActionText
+ class Fragment
+ class << self
+ def wrap(fragment_or_html)
+ case fragment_or_html
+ when self
+ fragment_or_html
+ when Nokogiri::HTML::DocumentFragment
+ new(fragment_or_html)
+ else
+ from_html(fragment_or_html)
+ end
+ end
+
+ def from_html(html)
+ new(ActionText::HtmlConversion.fragment_for_html(html.to_s.strip))
+ end
+ end
+
+ attr_reader :source
+
+ def initialize(source)
+ @source = source
+ end
+
+ def find_all(selector)
+ source.css(selector)
+ end
+
+ def update
+ yield source = self.source.clone
+ self.class.new(source)
+ end
+
+ def replace(selector)
+ update do |source|
+ source.css(selector).each do |node|
+ node.replace(yield(node).to_s)
+ end
+ end
+ end
+
+ def to_plain_text
+ @plain_text ||= PlainTextConversion.node_to_plain_text(source)
+ end
+
+ def to_html
+ @html ||= HtmlConversion.node_to_html(source)
+ end
+
+ def to_s
+ to_html
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/gem_version.rb b/actiontext/lib/action_text/gem_version.rb
new file mode 100644
index 0000000000..5a640de5c8
--- /dev/null
+++ b/actiontext/lib/action_text/gem_version.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module ActionText
+ # Returns the currently-loaded version of Action Text as a <tt>Gem::Version</tt>.
+ def self.gem_version
+ Gem::Version.new VERSION::STRING
+ end
+
+ module VERSION
+ MAJOR = 6
+ MINOR = 0
+ TINY = 0
+ PRE = "alpha"
+
+ STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
+ end
+end
diff --git a/actiontext/lib/action_text/html_conversion.rb b/actiontext/lib/action_text/html_conversion.rb
new file mode 100644
index 0000000000..1e1062ea3f
--- /dev/null
+++ b/actiontext/lib/action_text/html_conversion.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module ActionText
+ module HtmlConversion
+ extend self
+
+ def node_to_html(node)
+ node.to_html(save_with: Nokogiri::XML::Node::SaveOptions::AS_HTML)
+ end
+
+ def fragment_for_html(html)
+ document.fragment(html)
+ end
+
+ def create_element(tag_name, attributes = {})
+ document.create_element(tag_name, attributes)
+ end
+
+ private
+ def document
+ Nokogiri::HTML::Document.new.tap { |doc| doc.encoding = "UTF-8" }
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/plain_text_conversion.rb b/actiontext/lib/action_text/plain_text_conversion.rb
new file mode 100644
index 0000000000..0eb4e2e7da
--- /dev/null
+++ b/actiontext/lib/action_text/plain_text_conversion.rb
@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+module ActionText
+ module PlainTextConversion
+ extend self
+
+ def node_to_plain_text(node)
+ remove_trailing_newlines(plain_text_for_node(node))
+ end
+
+ private
+ def plain_text_for_node(node, index = 0)
+ if respond_to?(plain_text_method_for_node(node), true)
+ send(plain_text_method_for_node(node), node, index)
+ else
+ plain_text_for_node_children(node)
+ end
+ end
+
+ def plain_text_for_node_children(node)
+ node.children.each_with_index.map do |child, index|
+ plain_text_for_node(child, index)
+ end.compact.join("")
+ end
+
+ def plain_text_method_for_node(node)
+ :"plain_text_for_#{node.name}_node"
+ end
+
+ def plain_text_for_block(node, index = 0)
+ "#{remove_trailing_newlines(plain_text_for_node_children(node))}\n\n"
+ end
+
+ %i[ h1 p ul ol ].each do |element|
+ alias_method :"plain_text_for_#{element}_node", :plain_text_for_block
+ end
+
+ def plain_text_for_br_node(node, index)
+ "\n"
+ end
+
+ def plain_text_for_text_node(node, index)
+ remove_trailing_newlines(node.text)
+ end
+
+ def plain_text_for_div_node(node, index)
+ "#{remove_trailing_newlines(plain_text_for_node_children(node))}\n"
+ end
+
+ def plain_text_for_figcaption_node(node, index)
+ "[#{remove_trailing_newlines(plain_text_for_node_children(node))}]"
+ end
+
+ def plain_text_for_blockquote_node(node, index)
+ text = plain_text_for_block(node)
+ text.sub(/\A(\s*)(.+?)(\s*)\Z/m, '\1“\2”\3')
+ end
+
+ def plain_text_for_li_node(node, index)
+ bullet = bullet_for_li_node(node, index)
+ text = remove_trailing_newlines(plain_text_for_node_children(node))
+ "#{bullet} #{text}\n"
+ end
+
+ def remove_trailing_newlines(text)
+ text.chomp("")
+ end
+
+ def bullet_for_li_node(node, index)
+ if list_node_name_for_li_node(node) == "ol"
+ "#{index + 1}."
+ else
+ "•"
+ end
+ end
+
+ def list_node_name_for_li_node(node)
+ node.ancestors.lazy.map(&:name).grep(/^[uo]l$/).first
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/serialization.rb b/actiontext/lib/action_text/serialization.rb
new file mode 100644
index 0000000000..8ecf8c9157
--- /dev/null
+++ b/actiontext/lib/action_text/serialization.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+module ActionText
+ module Serialization
+ extend ActiveSupport::Concern
+
+ class_methods do
+ def load(content)
+ new(content) if content
+ end
+
+ def dump(content)
+ case content
+ when nil
+ nil
+ when self
+ content.to_html
+ else
+ new(content).to_html
+ end
+ end
+ end
+
+ # Marshal compatibility
+
+ class_methods do
+ alias_method :_load, :load
+ end
+
+ def _dump(*)
+ self.class.dump(self)
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/trix_attachment.rb b/actiontext/lib/action_text/trix_attachment.rb
new file mode 100644
index 0000000000..c16c1c090d
--- /dev/null
+++ b/actiontext/lib/action_text/trix_attachment.rb
@@ -0,0 +1,92 @@
+# frozen_string_literal: true
+
+module ActionText
+ class TrixAttachment
+ TAG_NAME = "figure"
+ SELECTOR = "[data-trix-attachment]"
+
+ COMPOSED_ATTRIBUTES = %w( caption presentation )
+ ATTRIBUTES = %w( sgid contentType url href filename filesize width height previewable content ) + COMPOSED_ATTRIBUTES
+ ATTRIBUTE_TYPES = {
+ "previewable" => ->(value) { value.to_s == "true" },
+ "filesize" => ->(value) { Integer(value.to_s) rescue value },
+ "width" => ->(value) { Integer(value.to_s) rescue nil },
+ "height" => ->(value) { Integer(value.to_s) rescue nil },
+ :default => ->(value) { value.to_s }
+ }
+
+ class << self
+ def from_attributes(attributes)
+ attributes = process_attributes(attributes)
+
+ trix_attachment_attributes = attributes.except(*COMPOSED_ATTRIBUTES)
+ trix_attributes = attributes.slice(*COMPOSED_ATTRIBUTES)
+
+ node = ActionText::HtmlConversion.create_element(TAG_NAME)
+ node["data-trix-attachment"] = JSON.generate(trix_attachment_attributes)
+ node["data-trix-attributes"] = JSON.generate(trix_attributes) if trix_attributes.any?
+
+ new(node)
+ end
+
+ private
+ def process_attributes(attributes)
+ typecast_attribute_values(transform_attribute_keys(attributes))
+ end
+
+ def transform_attribute_keys(attributes)
+ attributes.transform_keys { |key| key.to_s.underscore.camelize(:lower) }
+ end
+
+ def typecast_attribute_values(attributes)
+ attributes.map do |key, value|
+ typecast = ATTRIBUTE_TYPES[key] || ATTRIBUTE_TYPES[:default]
+ [key, typecast.call(value)]
+ end.to_h
+ end
+ end
+
+ attr_reader :node
+
+ def initialize(node)
+ @node = node
+ end
+
+ def attributes
+ @attributes ||= attachment_attributes.merge(composed_attributes).slice(*ATTRIBUTES)
+ end
+
+ def to_html
+ ActionText::HtmlConversion.node_to_html(node)
+ end
+
+ def to_s
+ to_html
+ end
+
+ private
+ def attachment_attributes
+ read_json_object_attribute("data-trix-attachment")
+ end
+
+ def composed_attributes
+ read_json_object_attribute("data-trix-attributes")
+ end
+
+ def read_json_object_attribute(name)
+ read_json_attribute(name) || {}
+ end
+
+ def read_json_attribute(name)
+ if value = node[name]
+ begin
+ JSON.parse(value)
+ rescue => e
+ Rails.logger.error "[#{self.class.name}] Couldn't parse JSON #{value} from NODE #{node.inspect}"
+ Rails.logger.error "[#{self.class.name}] Failed with #{e.class}: #{e.backtrace}"
+ nil
+ end
+ end
+ end
+ end
+end
diff --git a/actiontext/lib/action_text/version.rb b/actiontext/lib/action_text/version.rb
new file mode 100644
index 0000000000..ed72859fa4
--- /dev/null
+++ b/actiontext/lib/action_text/version.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require_relative "gem_version"
+
+module ActionText
+ # Returns the currently-loaded version of Action Text as a <tt>Gem::Version</tt>.
+ def self.version
+ gem_version
+ end
+end
diff --git a/actiontext/lib/tasks/actiontext.rake b/actiontext/lib/tasks/actiontext.rake
new file mode 100644
index 0000000000..4f90e4930c
--- /dev/null
+++ b/actiontext/lib/tasks/actiontext.rake
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+namespace :action_text do
+ # Prevent migration installation task from showing up twice.
+ Rake::Task["install:migrations"].clear_comments
+
+ desc "Copy over the migration, stylesheet, and JavaScript files"
+ task install: %w( environment run_installer copy_migrations )
+
+ task :run_installer do
+ installer_template = File.expand_path("../templates/installer.rb", __dir__)
+ system "#{RbConfig.ruby} ./bin/rails app:template LOCATION=#{installer_template}"
+ end
+
+ task :copy_migrations do
+ Rake::Task["active_storage:install:migrations"].invoke
+ Rake::Task["railties:install:migrations"].reenable # Otherwise you can't run 2 migration copy tasks in one invocation
+ Rake::Task["action_text:install:migrations"].invoke
+ end
+end
diff --git a/actiontext/lib/templates/actiontext.scss b/actiontext/lib/templates/actiontext.scss
new file mode 100644
index 0000000000..7cb26e74ac
--- /dev/null
+++ b/actiontext/lib/templates/actiontext.scss
@@ -0,0 +1,36 @@
+//
+// Provides a drop-in pointer for the default Trix stylesheet that will format the toolbar and
+// the trix-editor content (whether displayed or under editing). Feel free to incorporate this
+// inclusion directly in any other asset bundle and remove this file.
+//
+//= require trix/dist/trix
+
+// We need to override trix.css’s image gallery styles to accommodate the
+// <action-text-attachment> element we wrap around attachments. Otherwise,
+// images in galleries will be squished by the max-width: 33%; rule.
+.trix-content {
+ .attachment-gallery {
+ > action-text-attachment,
+ > .attachment {
+ flex: 1 0 33%;
+ padding: 0 0.5em;
+ max-width: 33%;
+ }
+
+ &.attachment-gallery--2,
+ &.attachment-gallery--4 {
+ > action-text-attachment,
+ > .attachment {
+ flex-basis: 50%;
+ max-width: 50%;
+ }
+ }
+ }
+
+ action-text-attachment {
+ .attachment {
+ padding: 0 !important;
+ max-width: 100% !important;
+ }
+ }
+}
diff --git a/actiontext/lib/templates/fixtures.yml b/actiontext/lib/templates/fixtures.yml
new file mode 100644
index 0000000000..8b371ea604
--- /dev/null
+++ b/actiontext/lib/templates/fixtures.yml
@@ -0,0 +1,4 @@
+# one:
+# record: name_of_fixture (ClassOfFixture)
+# name: content
+# body: <p>In a <i>million</i> stars!</p>
diff --git a/actiontext/lib/templates/installer.rb b/actiontext/lib/templates/installer.rb
new file mode 100644
index 0000000000..ee5a5af75b
--- /dev/null
+++ b/actiontext/lib/templates/installer.rb
@@ -0,0 +1,22 @@
+say "Copying actiontext.scss to app/assets/stylesheets"
+copy_file "#{__dir__}/actiontext.scss", "app/assets/stylesheets/actiontext.scss"
+
+say "Copying fixtures to test/fixtures/action_text/rich_texts.yml"
+copy_file "#{__dir__}/fixtures.yml", "test/fixtures/action_text/rich_texts.yml"
+
+say "Copying blob rendering partial to app/views/active_storage/blobs/_blob.html.erb"
+copy_file "#{__dir__}/../../app/views/active_storage/blobs/_blob.html.erb",
+ "app/views/active_storage/blobs/_blob.html.erb"
+
+# FIXME: Replace with release version on release
+say "Installing JavaScript dependency"
+run "yarn add https://github.com/rails/actiontext"
+
+APPLICATION_PACK_PATH = "app/javascript/packs/application.js"
+
+if File.exists?(APPLICATION_PACK_PATH) && File.read(APPLICATION_PACK_PATH) !~ /import "actiontext"/
+ say "Adding import to default JavaScript pack"
+ append_to_file APPLICATION_PACK_PATH, <<-EOS
+import "actiontext"
+EOS
+end