Develop a layout

This pages describe how to create a layout and use it in an application.

Definition

A layout is structure of the application and page content. It defines menu positioning, a footer, or any common content that could be displayed on every page of the application. Each application can have its own layout, or the same layout can be used consistently to all applications.

There is an example of layout in Bonita Applications, "Bonita Layout", that can be found in the Bonita Administrator Application, "Resources" page.
It is made of three containers:

  • layout-header
    Comes with the links to the user modal and the applications modal, and the living application menu widget to display the navigation of your application.

  • layout-content
    Comes with the living application iframe widget to display pages or forms of your application.

  • layout-footer
    Empty by default

  • User modal Current logged in user information, language selection and sign out link

  • Application List modal List of application links for the current logged in user The layout was created using Bonita UI Designer, so you can export it and customize it with Bonita UI designer. You can add more widgets in the containers layout-header and layout-footer. The 'layout.css' file manages the layout behavior, allows to display the content container in full height, and header and footer with fixed size.
    But it does not allow to add other widgets than the living application iframe into layout-content.

For example, you could:

  • Add elements in the layout-header, on top of the menu, like a login box or brand image

  • Add somme content in the layout-footer

Usage

A layout is deployed in a Bonita Runtime as a .zip archive containing a page.properties file and a resources folder.

  • The page.properties file contains the metadata for the layout (the name used in the URL, the display name, and a description). For example:

    name=custompage_layout
    displayName=Application layout page
    description=This is a layout page dedicated to new born living applications. It is created and editable using the UI designer. It allows to display an horizontal menu, and an iframe. The menu allows to target some pages and the iframe define the area to display those targeted pages.
    resources=[GET|living/application,GET|living/application-page,GET|living/application-menu]
    contentType=layout
  • The resources folder must contain an Index.groovy class or an index.html file and optionally can contain some additional resources.

In case of layout edition using Bonita UI Designer, the contentType is kept unchanged. Export the examples to see how to structure your layout.

Constraints

A layout can only be used as the main container of an application. It cannot be used as a simple application page.

Layout resources management

Layout resources

If you are not using Groovy, you can directly access a resource by adding a link in index.html.

For example: <link href="css/file.css" rel="stylesheet" />

API acces

If your page is viewed in an application, you will have access facilities for the APIs.

You will be able to access the APIs using the following path: "../API/{API name}/{resource name}"

Theme access

If your page is viewed in an application, you will have access facilities for the application theme.

The Theme.css is directly accessible by adding the following link in index.html: <link href="../theme/theme.css" rel="stylesheet" />