Revert the fix to link_to helper with a block (#121)

It has caused several regressions. In order to unblock shipping
other improvements, I propose to revert the fix until we find a
non-regressing one.

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Master (unreleased)
 
+* Revert [#64][] to fix several regressions, at the cost of reintroducing [#46][]. [#121][] by [@deivid-rodriguez][]
+
 ## 1.2.0 [☰](https://github.com/activeadmin/arbre/compare/v1.2.0.rc1...v1.2.0)
 
 _No changes_.
@@ -72,11 +74,13 @@ Initial release and extraction from Active Admin
 [#36]: https://github.com/activeadmin/arbre/issues/36
 [#39]: https://github.com/activeadmin/arbre/issues/39
 [#40]: https://github.com/activeadmin/arbre/issues/40
+[#46]: https://github.com/activeadmin/arbre/issues/46
 [#49]: https://github.com/activeadmin/arbre/issues/49
 [#59]: https://github.com/activeadmin/arbre/issues/59
 [#64]: https://github.com/activeadmin/arbre/pull/64
 [#78]: https://github.com/activeadmin/arbre/pull/78
 [#110]: https://github.com/activeadmin/arbre/pull/110
+[#121]: https://github.com/activeadmin/arbre/pull/121
 
 [@aramvisser]: https://github.com/aramvisser
 [@LTe]: https://github.com/LTe

lib/arbre/element.rb

@@ -178,20 +178,11 @@ def method_missing(name, *args, &block)
       elsif assigns && assigns.has_key?(name)
         assigns[name]
       elsif helpers.respond_to?(name)
-        helper_capture(name, *args, &block)
+        helpers.send(name, *args, &block)
       else
         super
       end
     end
 
-    # The helper might have a block that builds Arbre elements
-    # which will be rendered (#to_s) inside ActionView::Base#capture.
-    # We do not want such elements added to self, so we push a dummy
-    # current_arbre_element.
-    def helper_capture(name, *args, &block)
-      s = ""
-      within(Element.new) { s = helpers.send(name, *args, &block) }
-      s.is_a?(Element) ? s.to_s : s
-    end
   end
 end

lib/arbre/rails/template_handler.rb

@@ -1,21 +1,3 @@
-# frozen_string_literal: true
-
-ActionView::Base.class_eval do
-  def capture(*args)
-    value = nil
-    buffer = with_output_buffer { value = yield(*args) }
-
-    # Override to handle Arbre elements inside helper blocks.
-    # See https://github.com/rails/rails/issues/17661
-    # and https://github.com/rails/rails/pull/18024#commitcomment-8975180
-    value = value.to_s if value.is_a?(Arbre::Element)
-
-    if (string = buffer.presence || value) && string.is_a?(String)
-      ERB::Util.html_escape string
-    end
-  end
-end
-
 module Arbre
   module Rails
     class TemplateHandler

spec/rails/integration/rendering_spec.rb

@@ -30,10 +30,6 @@ def render_partial_with_instance_variable
     @my_instance_var = "From Instance Var"
     render "arbre/page_with_arb_partial_and_assignment"
   end
-
-  def render_page_with_helpers
-    render "arbre/page_with_helpers"
-  end
 end
 
 
@@ -100,15 +96,4 @@ def render_page_with_helpers
     expect(body).to have_selector("p", text: "Partial: From Instance Var")
   end
 
-  it "should render a page with helpers" do
-    get "/test/render_page_with_helpers"
-    expect(response).to be_successful
-    expect(body).to eq <<~HTML
-      <span>before h1 link</span>
-      <h1><a href="/h1_link_path">h1 link text</a></h1>
-      <span>before link_to block</span>
-      <a href="/link_path">  <i class=\"link-class\">Link text</i>
-      </a><span>at end</span>
-    HTML
-  end
 end