3 files changed, 72 insertions, 0 deletions
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..a8000eb9fc
--- /dev/null
+++ b/actiontext/lib/templates/installer.rb
@@ -0,0 +1,32 @@
+require "pathname"
+require "json"
+
+APPLICATION_PACK_PATH = Pathname.new("app/javascript/packs/application.js")
+JS_PACKAGE_PATH = Pathname.new("#{__dir__}/../../package.json")
+
+JS_PACKAGE = JSON.load(JS_PACKAGE_PATH)
+JS_DEPENDENCIES = JS_PACKAGE["peerDependencies"].dup.merge \
+  JS_PACKAGE["name"] => "^#{JS_PACKAGE["version"]}"
+
+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"
+
+say "Installing JavaScript dependencies"
+run "yarn add #{JS_DEPENDENCIES.map { |name, version| "#{name}@#{version}" }.join(" ")}"
+
+if APPLICATION_PACK_PATH.exist?
+  JS_DEPENDENCIES.keys.each do |name|
+    line = %[require("#{name}")]
+    unless APPLICATION_PACK_PATH.read.include? line
+      say "Adding #{name} to #{APPLICATION_PACK_PATH}"
+      append_to_file APPLICATION_PACK_PATH, "\n#{line}"
+    end
+  end
+end