#!/usr/bin/env python
# coding: utf-8

# # ipytree: Interactive tree view based on ipywidgets
# 
# ## https://github.com/QuantStack/ipytree/
# 
# 
# ipytree is a jupyter interactive widget library which provides a tree widget to the Jupyter notebook.
# 
# - MIT Licensed
# 
# **Installation:**
# 
# ```bash
# conda install -c conda-forge ipytree
# ```

# ## Create a tree

# In[ ]:


from ipywidgets import Text, link
from ipytree import Tree, Node


# In[ ]:


tree = Tree()
tree.add_node(Node('node1'))

node2 = Node('node2')
tree.add_node(node2)

tree


# In[ ]:


node3 = Node('node3', disabled=True)
node4 = Node('node4')
node5 = Node('node5', [Node('1'), Node('2')])
node2.add_node(node3)
node2.add_node(node4)
node2.add_node(node5)


# ## Change node name

# In[ ]:


name = Text('node3')
link((name, 'value'), (node3, 'name'))

name


# ## Change node icon

# In[ ]:


node4.icon = 'archive'
node4.icon_style = 'warning'


# ## Handle click

# In[ ]:


def handle_click(event):
    event['owner'].name = 'I am selected!!!' if event['new'] else 'I am not selected...' 

node4.observe(handle_click, 'selected')
node4.selected = True