X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/42efffeca3922e6bd41a35bb193080f9bf5a8953..78e0599b0773976167ccb720fc1596236295337a:/apps/workbench/app/helpers/application_helper.rb

diff --git a/apps/workbench/app/helpers/application_helper.rb b/apps/workbench/app/helpers/application_helper.rb
index d02d058e3a..420ffbaf11 100644
--- a/apps/workbench/app/helpers/application_helper.rb
+++ b/apps/workbench/app/helpers/application_helper.rb
@@ -52,6 +52,35 @@ module ApplicationHelper
     ArvadosBase::resource_class_for_uuid(attrvalue, opts)
   end
 
+  # When using {remote:true}, or using {method:...} to use an HTTP
+  # method other than GET, move the target URI from href to
+  # data-remote-href. Otherwise, browsers offer features like "open in
+  # new window" and "copy link address" which bypass Rails' click
+  # handler and therefore end up at incorrect/nonexistent routes (by
+  # ignoring data-method) and expect to receive pages rather than
+  # javascript responses.
+  #
+  # See assets/javascripts/link_to_remote.js for supporting code.
+  def link_to *args, &block
+    if (args.last and args.last.is_a? Hash and
+        (args.last[:remote] or
+         (args.last[:method] and
+          args.last[:method].to_s.upcase != 'GET')))
+      if Rails.env.test?
+        # Capybara/phantomjs can't click_link without an href, even if
+        # the click handler means it never gets used.
+        raw super.gsub(' href="', ' href="#" data-remote-href="')
+      else
+        # Regular browsers work as desired: users can click A elements
+        # without hrefs, and click handlers fire; but there's no "copy
+        # link address" option in the right-click menu.
+        raw super.gsub(' href="', ' data-remote-href="')
+      end
+    else
+      super
+    end
+  end
+
   ##
   # Returns HTML that links to the Arvados object specified in +attrvalue+
   # Provides various output control and styling options.
@@ -148,6 +177,33 @@ module ApplicationHelper
     end
   end
 
+  def link_to_arvados_object_if_readable(attrvalue, link_text, link_text_if_not_readable, use_friendly_name=false, resource_class=nil)
+    resource_class = resource_class_for_uuid(attrvalue) if !resource_class
+    if !resource_class
+      return link_text_if_not_readable
+    end
+
+    if resource_class.andand.to_s == 'Collection'
+      if CollectionsHelper.match(attrvalue)
+        readable = Collection.find? attrvalue
+      else
+        readable = collections_for_object(attrvalue).any?
+      end
+    else
+      readable = object_for_dataclass(resource_class, attrvalue)
+    end
+
+    if readable
+      if use_friendly_name
+        link_to_if_arvados_object attrvalue, friendly_name: true
+      else
+        link_to_if_arvados_object attrvalue, link_text: link_text
+      end
+    else
+      link_text_if_not_readable
+    end
+  end
+
   def render_editable_attribute(object, attr, attrvalue=nil, htmloptions={})
     attrvalue = object.send(attr) if attrvalue.nil?
     if not object.attribute_editable?(attr)