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Discover how to dynamically change HMENU settings in TYPO3 based on layout using TypoScript with our in-depth guide.
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This video is based on the question https://stackoverflow.com/q/73398164/ asked by the user 'user500665' ( https://stackoverflow.com/u/5369794/ ) and on the answer https://stackoverflow.com/a/73398852/ provided by the user 'Julian Hofmann' ( https://stackoverflow.com/u/6783328/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Override HMENU Special Setting Based on Layout in TYPO3

In the world of TYPO3, managing how content displays based on certain conditions is crucial for creating a dynamic and flexible website. A common scenario developers encounter is the need to change the menu structure based on the layout of a page. This guide provides a clear guide on how to achieve this by overriding the HMENU Special setting utilizing TypoScript.

The Problem

You're likely facing a scenario where your menu element is initially set to list selected pages. This is defined in your TypoScript configuration as follows:

[[See Video to Reveal this Text or Code Snippet]]

However, there may be instances when you want to switch this configuration to display a directory of pages instead, but only when a specific layout is applied to the page. The challenge lies in how to implement this conditionally.

The Solution

To address this challenge effectively, the approach is to define two separate menu processors within your TypoScript — each conditioned by a layout check. Here's how to structure that:

Step-by-step Implementation

Define First Menu Processor:
This processor keeps the original list setting and uses a condition to ensure it only runs when the specified layout is not applied.

[[See Video to Reveal this Text or Code Snippet]]

Define Second Menu Processor:
The second processor changes the menu setting to directory when the specific layout is set.

[[See Video to Reveal this Text or Code Snippet]]

Full TypoScript Configuration

Combining both processors, your full TypoScript configuration will look like this:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of Key Elements

if Condition: The condition block allows you to check the current layout of the page. By utilizing negate = 1, it ensures that the first processor only runs if the layout is not the specified one.

Multiple Processors: By defining two processors (10 and 20), you can effectively manage which menu type is displayed based on the layout, maintaining clean and organized TypoScript.

Conclusion

By following the steps outlined above, you can easily override the HMENU Special settings based on the layout using TYPO3's TypoScript configuration. This flexibility enables you to build dynamic menus that enhance the user experience across different pages of your website.

If you have any questions or need further clarification on this topic, feel free to reach out or leave a comment below!