Add custom link target handling override

Author: Kagemaru

app/overrides/controllers/decidim/participatory_processes/admin/participatory_processes_controller_override.rb

@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+# Override last checked at: 04.04.2025
+Decidim::ParticipatoryProcesses::Admin::ParticipatoryProcessesController.class_eval do
+  def edit
+    enforce_permission_to :update, :process, process: current_participatory_process
+
+    @form = form(Decidim::ParticipatoryProcesses::Admin::ParticipatoryProcessForm).from_model(current_participatory_process)
+
+    @form[:description_de] = reset_url_target(@form[:description_de])
+    @form[:description_en] = reset_url_target(@form[:description_en])
+
+    render layout: "decidim/admin/participatory_process"
+  end
+
+  private
+
+  def participatory_process_params
+    ppp = { id: params[:slug] }.merge(params[:participatory_process].to_unsafe_h)
+
+    ppp['description_de'] = apply_url_target(ppp['description_de'])
+    ppp['description_en'] = apply_url_target(ppp['description_en'])
+
+    ppp
+  end
+
+  def apply_url_target(text)
+    pattern = %r{<a href="([^"]+?)(:?\?|\&amp;)target=([^"]+?)"(.+?)(:?target="_blank")?>}
+    matches = matches(text, pattern)
+
+    matches
+      .reduce(text) do |text, match|
+        href, _, target, params = match.captures.map(&:strip)
+
+        text.gsub(match[0], %(<a href="#{href}" #{params} target="#{target}">))
+      end
+  end
+
+  def reset_url_target(text)
+    pattern = %r{<a href="(.+?)"(.+?)target="(.+?)">}
+    matches = matches(text, pattern)
+
+    matches
+      .reject { |match| match[3] == '_blank' }
+      .reduce(text) do |text, match|
+        href, params, target = match.captures.map(&:strip)
+        next if target == '_blank'
+
+        divider = href.split('/').last.include?('?') ? '&amp;' : '?'
+        new_href = "#{href}#{divider}target=#{target}"
+
+        text.gsub(match[0], %(<a href="#{new_href}" #{params} target="_blank">))
+      end
+  end
+
+  def matches(str, regexp)
+    start_at = 0
+    matches  = []
+    while(match = str.match(regexp, start_at))
+      matches.push(match)
+      start_at = match.end(0)
+    end
+    matches
+  end
+end

doc/overrides_patches_hacks.md

@@ -38,6 +38,7 @@ Hier sammeln wir alle Fixes zusammen mit den Gründen warum wir sie brauchen und
 | [layouts/mailer.html.erb](app/views/layouts/mailer.html.erb)                                                          | ?                     | ?                                                              | ?                                                                                                     | -                  |
 | [decidim_zuerich_customization.rb](config/initializers/decidim_zuerich_customization.rb)                              | ?                     | ?                                                              | ?                                                                                                     | -                  |
 | [resource_locator_presenter.rb](app/presenters/decidim_zuerich/resource_locator_presenter.rb)                         | Fix für Notifications | ?                                                              | ?                                                                                                     | -                  |
+| [participatory_processes_controller.rb](app/overrides/controllers/decidim/participatory_processes/admin/participatory_processes_controller_override.rb) | Custom link target handling  | ?                                                              | ?                                                                                                     | -                  |
 # Archivierte Fixes
 | Grund | Commit | Anmerkungen |
 | ----- | ------ | ----------- |