Sven Decabooter

When defining local tasks (= tabs) in your Drupal 8 modules, you can specify a title for the tab via the 'title' property in your [MODULENAME].links.task.yml file.

However, in some cases you might want to make the task title dynamic, e.g. depending on the context of the entity where the tab is displayed.
This can be achieved by overriding the \Drupal\Core\Menu\LocalTaskDefault class with your own class for that tab.

Here is an example that uses a callback function to dynamically set the title, both for the route and the local task:

Drupal 8 allows you to define custom tabs (a.k.a. local tasks) in your custom module.
For theming purposes, it might be necessary to add a class, ID, or other HTML attribute to the tab link.

Here is how this can be achieved when defining the local task in your [modulename].links.task.yml:

On September 10th 2016 I had the honour of giving an updated version of my talk "Migrate API in Drupal 8" at Drupalcamp Saint Louis. Since I'm staying in Chicago from August to October this year, Saint Louis was close enough to permit a trip to the third Drupalcamp hosted by the local STL community.

In the book 'Drupal 7 Development by Example', author Kurt Madel guides the reader through the process of building a Drupal 7 website. Step by step we are building an HTML5 interactive recipe website. The book covers setting up content types, using Views to list recipes and create blocks, integrating the Media module, HTML5 theming and enhancing the website markup with Microdata. Furthermore widely used modules such as Webform, Fivestar, Views Slideshow and Features are covered.

In the book "Drupal 7 Webform Cookbook" author Vernon Denny takes us on a journey through the various aspects concerning the popular Webform Drupal module. Readers of this book are shown step by step how to leverage the power of this module, and associated other contributed modules that extend its functionality, to create everything from simple contact forms to complex, multipage and conditional forms.