<div dir="ltr">Hello! This is a follow-up to the changes I sent in April ("Refactoring proposal for Browser>>classList"). The goal of these changes is to improve the separation between content and presentation in the browser. Last time I worked on the class list, and now the attached changesets apply the same idea to the message categories and methods lists, by giving each list a single extension point where the presentation of their items can be defined. I kept the same conventions of the previous changes, where the messages for the class list were #classList (returns a collection of classes), #classItems (returns labels), and #labelForClass: (returns the label for each class). In this case we have something similar: #messageCategoryList/#messageList return symbols, #messageCategoryItems/#messageItems return labels, and #labelForCategory:/#labelForSelector: return the label specific for one category/selector. <div>To help during review, I split the work into small sequential change sets, each of which also migrates the windows already open in the image. Here's a summary of the changes:</div><ol><li>implement_labelForCategory_for_browser: the extension point for the message categories list.</li><li>implement_labelForSelector_for_browser: the extension point for the methods list. The coloring that CodeFileBrowser used to do inside #messageList moves to its #labelForSelector: override, so the #messageList override is no longer needed. I also adjusted #categorizeUnderCategoryAt:selector: because drag and drop now passes it an item, not a selector.</li><li>use_labelForSelector_from_ChangeSorter: the ChangeSorter method list is now a regular PluggableListMorph over #messageItems, so the index methods now translate between the index and #currentSelector.</li><li>implement_labelForSelector_for_MethodSet: the same extension point for MethodSet. I also included a small cleanup of a redundant assignment in MessageNames>>messageList.</li><li>haveFun: this last one is not meant for integration, but it's useful to test the changes. It overrides the three label methods to show icons and colors in all of the lists, to demonstrate what the extension points make possible.</li></ol> Cheers! Facu</div>