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Expand/collapse feature for specific Plone navigation entries, in an unobtrusive way
JavaScript Python CSS Shell
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collective
docs
MANIFEST.in
README.rst
setup.py

README.rst

Introduction

Scope of this product is to make possible an expand/collapse feature in Plone navigation(s) portlet without any modification to the navigation code itself, or any needs to override its features.

This product is not a new navigation portlet, is just a Javascript add-on that rely on native Plone's jQuery support.

More important: it is only focused to make some navigation links to be expandable.

When you will like this?

The collective.navigationtoggle is useful when your Plone site needs (not much) special handling of navigation elements. Sometimes your site structure is someway like this:

ROOT
|
|_ FolderWhatever
\_ NotImportantFolder
   |
   |_ ImportantFolder1
   ...
   \_ ImportantFolderN

If you configure your navigation portlet on the site root, users must click on the NotImportantFolder and reload the whole page to reach the ImportantFolder's section. The site at the NotImportantFolder level is not useful... maybe you only give a folder_listing view or a default page that only say "Welcome to an important area of the site, please visit the subsection you are looking for...".

For the user experience the first click is only a waste of time.

What you are looking for can be a client side effect that expand/collapse the folder in the navigation. The NotImportantFolder itself is not seen as a real content in your information architecture.

What will change

Closed navigation from AUSL site Open navigation from AUSL site

Make possible that special navigation links will no more move the user to the target section but simply shows in the navigation itself all subsections (so the navigation seems like the user really moved to the target folder).

A second click will collapse the section.

Default page in a folder, elements marked with "Exclude from navigation" and unwanted type from the metaTypesNotToList property will be excluded.

The script try to simulate best at possible a normal portlet navigation behaviour.

The code keeps in mind graceful degradation. Browser without JavaScript enabled will simply use basic Plone navigation features.

Detailed documentation

Basic configuration

In your Plone configuration panel you'll find the new "Navigation Toggle settings".

Setup of Navigation Toggle configuration

From this section you can configure a lot of advanced options, mainly you need to configure:

Link selectors

A set of URL path suffix like /foo1/foo2 of an href attribute for a link. With this example a link like this will be hit:

<a href="http://plonehost/plone/foo1/foo2">

Commonly only link inside navigation portlet are checked (see the "Toggle container classes").

You can also provide here a complex jQuery expression (for example: "li.navTreeItem a").

Animation delay

The product can enable for you a graphical effect when you expand/collapse items. This is disabled by default.

To enable it you must change this value to something higher that 0. The value you put there is the time (in millisec) used for the slideDown and slideUp jQuery's effect.

Simply put it to 0 again (the default) to disable effect.

Advanced configurations

Cache
Check it to perform client side cache of the AJAX request. If disabled a request to the server will be performed for every click on navigations.
Toggle container classes

A set of CSS classes that mark you navigation elements. Only links inside elements with one of those classes are "toggleable".

Note that this option is ignored for "Links selectors" entries where you used a jQuery expression and not a URL path.

HTML list type
The type of HTML container element to looks for.
HTML list item
The type of HTML item element to be generated.

Styles

This products dinamically adds two new possible CSS classes to <li> elements that contains links that match the configuration.

Class "cnavClosed" is added when a special navigation elements is shown on the page and when you close a subtree. When a subsection is open, the class "cnavOpen" is added to the same element.

The generated substructure is a copy of the main structure given by Plone, but a "cnavGenerated" class is added to it.

You can (but this product doesn't) rely on those classes to give additional styles effects in your Plone theme.

Not standard navigation (...or portlet... or whatever you want)

This products may also works on non-standard navigation HTML structure (as the generations on subelement is done cloning existings node from the same navigation portlet) but some assumptions are done.

As the code works almost client side, you can also use it in portlets that are not standard navigation. Theoretically you can use it with something that is not even a portlet!

Versions/Dependencies

Browsers

  • Firefox 16 (...probably a new major version will be released while I'm typing this line...)
  • Google Chrome 23 (...same as above...)
  • Opera 12
  • Safari 5.1
  • Internet Explorer 8, 9

Plone

  • Plone 3.3 (classic Plone theme)
  • Plone 4.2 (classic Plone theme and Sunburst)

Dependencies

TODO

  • Change global configuration settings to be different for every navigation

Other products

If you need a complete expand/collapse navigation feature this product is not for you; so take a look to collective.portlet.explore.

Credits

Developed with the support of:

All of them supports the PloneGov initiative.

Authors

This product was developed by RedTurtle Technology team.

RedTurtle Technology Site
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