From e82e86223702d1ffcdef8c601d37de9e4a91554a Mon Sep 17 00:00:00 2001
From: James Smith <james@floppy.org.uk>
Date: Wed, 14 Oct 2026 16:26:02 +0100
Subject: [PATCH] Create :edit file handler and move form into plaintext form
 view component

---
 app/components/editors/plaintext_form.rb    | 23 +++++++++++++++++++++
 app/controllers/model_files_controller.rb   |  3 ++-
 app/lib/file_handlers.rb                    |  1 +
 app/lib/file_handlers/plaintext_form.rb     | 11 ++++++++++
 app/views/model_files/edit_content.html.erb |  8 +------
 5 files changed, 38 insertions(+), 8 deletions(-)
 create mode 100644 app/components/editors/plaintext_form.rb
 create mode 100644 app/lib/file_handlers/plaintext_form.rb

diff --git a/app/components/editors/plaintext_form.rb b/app/components/editors/plaintext_form.rb
new file mode 100644
index 000000000..6860bd374
--- /dev/null
+++ b/app/components/editors/plaintext_form.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Components::Editors::PlaintextForm < Components::Base
+  include Phlex::Rails::Helpers::FormTag
+  include Phlex::Rails::Helpers::TextAreaTag
+  include Phlex::Rails::Helpers::SubmitTag
+
+  def initialize(file:)
+    @file = file
+  end
+
+  def view_template
+    form_tag model_model_file_raw_path(@file.model, @file.filename), method: :put, class: "container-md" do
+      div class: "mb-3" do
+        text_area_tag :body, @file.attachment.read, class: "form-control", rows: "20"
+      end
+
+      div class: "form-save-button" do
+        submit_tag
+      end
+    end
+  end
+end
diff --git a/app/controllers/model_files_controller.rb b/app/controllers/model_files_controller.rb
index b98fc2cd8..50c605bc4 100644
--- a/app/controllers/model_files_controller.rb
+++ b/app/controllers/model_files_controller.rb
@@ -110,7 +110,8 @@ class ModelFilesController < ApplicationController
   end
 
   def edit_content
-    raise ActionController::BadRequest unless @file.mime_type.to_sym.in? [:html, :text, :js, :md]
+    @editor = FileHandlers.handlers_for(environment: :edit, mime_type: @file.mime_type).first
+    raise ActionController::BadRequest unless @editor
   end
 
   def extract
diff --git a/app/lib/file_handlers.rb b/app/lib/file_handlers.rb
index ab9d5bcd5..32f5240ea 100644
--- a/app/lib/file_handlers.rb
+++ b/app/lib/file_handlers.rb
@@ -2,6 +2,7 @@ module FileHandlers
   # i18n-tasks-use t("file_handlers.environments.browser")
   # i18n-tasks-use t("file_handlers.environments.client")
   # i18n-tasks-use t("file_handlers.environments.preview_frame")
+  # i18n-tasks-use t("file_handlers.environments.edit")
   # i18n-tasks-use t("file_handlers.environments.convert")
   # i18n-tasks-use t("file_handlers.environments.thumbnail")
 
diff --git a/app/lib/file_handlers/plaintext_form.rb b/app/lib/file_handlers/plaintext_form.rb
new file mode 100644
index 000000000..ed22a63fe
--- /dev/null
+++ b/app/lib/file_handlers/plaintext_form.rb
@@ -0,0 +1,11 @@
+class FileHandlers::PlaintextForm < FileHandlers::Base
+  # i18n-tasks-use t("file_handlers.handlers.plaintext_form")
+
+  ENVIRONMENTS = [:edit].freeze
+
+  INPUT_TYPES = Mime::EXTENSION_LOOKUP.slice("html", "js", "txt", "md").values.freeze
+
+  def self.component
+    Components::Editors::PlaintextForm
+  end
+end
diff --git a/app/views/model_files/edit_content.html.erb b/app/views/model_files/edit_content.html.erb
index 231b18bdb..b217e618d 100644
--- a/app/views/model_files/edit_content.html.erb
+++ b/app/views/model_files/edit_content.html.erb
@@ -4,10 +4,4 @@
       @file.name => model_model_file_path(@file.model, @file)
     } %>
 
-<%= form_tag model_model_file_raw_path(@file.model, @file.filename), method: :put, class: "container-md" do %>
-  <%= text_area_tag :body, @file.attachment.read, class: "form-control", rows: "20" %>
-
-  <div class="form-save-button">
-    <%= submit_tag %>
-  </div>
-<% end %>
+<%= render @editor.component.new(file: @file) %>