Support selective rendering (#154)

* Support selective rendering

* Use X-Fragment header

* Make rails helpers respect selective rendering

* Support multipel fragments

* Support selective rendering for turbo frames

* Update overrides.rb

* Fixes

---------

Co-authored-by: Will Cosgrove <[email protected]>

lib/phlex/rails/helper_macros.rb

@@ -7,6 +7,9 @@ def define_output_helper(method_name)
 			# frozen_string_literal: true
 
 			def #{method_name}(...)
+  			context = @_context
+  			return if context.fragments && !context.in_target_fragment
+
 				output = helpers.#{method_name}(...)
 
 				case output
@@ -24,6 +27,9 @@ def define_output_helper_with_capture_block(method_name)
 			# frozen_string_literal: true
 
 			def #{method_name}(*args, **kwargs, &block)
+  			context = @_context
+  			return if context.fragments && !context.in_target_fragment
+
 				output = if block
 					helpers.#{method_name}(*args, **kwargs) { capture(&block) }
 				else
@@ -69,6 +75,8 @@ def define_builder_yielding_helper(method_name, builder)
 			# frozen_string_literal: true
 
 			def #{method_name}(*args, **kwargs)
+  			context = @_context
+  			return if context.fragments && !context.in_target_fragment
 				output = if block_given?
 					helpers.#{method_name}(*args, **kwargs) { |form|
 						capture do

lib/phlex/rails/sgml/overrides.rb

@@ -31,8 +31,14 @@ def render(*args, **kwargs, &block)
 				end
 
 				def render_in(view_context, &block)
+					fragments = if (fragment_header = view_context.request.headers["X-Fragment"])
+						fragment_header.split(" ")
+					elsif (turbo_frame = view_context.request.headers["Turbo-Frame"])
+						[turbo_frame]
+					end
+
 					if block_given?
-						call(view_context: view_context) do |*args|
+						call(view_context: view_context, fragments: fragments) do |*args|
 							original_length = @_context.target.length
 
 							if args.length == 1 && Phlex::SGML === args[0] && !block.source_location&.[](0)&.end_with?(".rb")
@@ -53,7 +59,7 @@ def render_in(view_context, &block)
 							end
 						end.html_safe
 					else
-						call(view_context: view_context).html_safe
+						call(view_context: view_context, fragments: fragments).html_safe
 					end
 				end
 

phlex-rails.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
 	end
 	spec.require_paths = ["lib"]
 
-	spec.add_dependency "phlex", "~> 1.9"
+	spec.add_dependency "phlex", "~> 1.10"
 	spec.add_dependency "railties", ">= 6.1", "< 8"
 	spec.add_dependency "zeitwerk", "~> 2.6"