TreeHtml

Generate plain css tree structure.

Installation

Add this line to your application's Gemfile:

gem 'tree_html'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tree_html

Usage

In Node class, include TreeHtml, then implement label_for_tree_html and children_for_tree_html, then call tree_html on node object to get ul/li fragment, or tree_html_full to get a html file with pre-defined style.

You may overwrite data_for_tree_html, head_js_for_tree_html, body_js_for_tree_html, css_for_tree_html to specify your own style.

In generated html, hover a branch and press f/u to fold/unfold it's children, press p/n to jump to it's previous/next sibling branch. You may change these function keys in body_js_for_tree_html.

Or checkout test/tree_html_test.rb to see how to use.