How can I display the maximize and minimize buttons in my widget

Issue

• I upgraded from 6.2 version to 7.4 and I am not able to configure maximize and minimize buttons in my widgets as I had in 6.2 version. I used to add $theme.iconMinimize() and $theme.iconMaximize() to my custom theme using Velocity.

Environment

• 2024.Q1
• 2023.Q4
• 2023.Q3
• DXP 7.4

Resolution

• Since LPSA-79897, this code is moved to a theme configuration.
• To adapt your code you have to:
  1. Add the configurable setting to your custom theme:
     <setting configurable="true" key="show-maximize-minimize-application-links" type="checkbox" value="true" />.
     You can take the Classic Theme code as an example: Classic Theme - liferay-look-and-feel.xml.
  2. Use the liferay-frontend["icon-options"] tag to display the configuration options:
     1. To use the Front-end taglib in you apps, add the following declaration to your JSP: <%@ taglib prefix="liferay-frontend" uri="http://liferay.com/tld/frontend" %>
     2. Then add <liferay-frontend["icon-options"]/> to your JSP.
     3. For Freemarker templates use <@liferay_frontend["icon-options"] instead.
• Once the theme is deployed and configured for a page (or set of pages), you can enable or disable this option from the Design tab of the page:

NOTE: The following resolution requires customization and should only be implemented at the discretion of your team. Liferay Support will not be able to assist with designing or implementing customizations.