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r"""
Installation requirements:
pip install trame trame-vuetify trame-components
"""
from collections import defaultdict
from pathlib import Path
from trame.app import get_server
from trame.assets.local import LocalFileManager
from trame.ui.vuetify import SinglePageLayout
from trame.widgets import trame
BASE = Path(__file__).parent
# -----------------------------------------------------------------------------
# Trame setup
# -----------------------------------------------------------------------------
server = get_server(client_type="vue2")
state, ctrl = server.state, server.controller
# -----------------------------------------------------------------------------
# Application
# -----------------------------------------------------------------------------
class PipelineManager:
DEFAULT_NODE = {"name": "undefined", "visible": 0, "collapsed": 0}
def __init__(self, state, name):
self._state = state
self._name = name
self._next_id = 1
self._nodes = {}
self._children_map = defaultdict(set)
def _update_hierarchy(self):
self._children_map.clear()
for node in self._nodes.values():
self._children_map[node.get("parent")].add(node.get("id"))
self.update()
def _add_children(self, list_to_fill, node_id):
for child_id in self._children_map[node_id]:
node = self._nodes[child_id]
list_to_fill.append(node)
if node.get("collapsed"):
continue
self._add_children(list_to_fill, node.get("id"))
return list_to_fill
def update(self):
result = self._add_children([], "0")
self._state[self._name] = result
return result
def add_node(self, parent="0", **item_keys):
_id = f"{self._next_id}"
self._next_id += 1
node = {
**PipelineManager.DEFAULT_NODE,
"id": _id,
"parent": parent,
**item_keys,
}
self._nodes[_id] = node
self._update_hierarchy()
return _id
def remove_node(self, _id):
for id in self._children_map[_id]:
self.remove_node(id)
self._nodes.pop(_id)
self._update_hierarchy()
def toggle_collapsed(self, _id, icons=["collapsed", "collapsible"]):
node = self.get_node(_id)
node["collapsed"] = not node["collapsed"]
# Toggle matching action icon
actions = node.get("actions", [])
for i in range(len(actions)):
action = actions[i]
if action in icons:
actions[i] = icons[(icons.index(action) + 1) % 2]
self.update()
return node["collapsed"]
def toggle_visible(self, _id):
node = self.get_node(_id)
node["visible"] = not node["visible"]
self.update()
return node["visible"]
def get_node(self, _id):
return self._nodes.get(f"{_id}")
pipeline = PipelineManager(state, "git_tree")
id_root = pipeline.add_node(
name="root", visible=0, color="#9C27B0", actions=["test", "delete"]
)
id_a = pipeline.add_node(
parent=id_root,
name="a",
visible=1,
color="#42A5F5",
actions=["collapsible", "delete"],
)
id_b = pipeline.add_node(
parent=id_root, name="b", visible=1, color="#00ACC1", actions=["collapsible"]
)
id_aa = pipeline.add_node(
parent=id_a, name="aa", visible=1, color="#2962FF", actions=["test", "delete"]
)
id_aaa = pipeline.add_node(parent=id_aa, name="aaa", visible=1, color="black")
id_ba = pipeline.add_node(
parent=id_b, name="ba", visible=1, color="#004D40", actions=["collapsible"]
)
id_bb = pipeline.add_node(
parent=id_b, name="bb", visible=1, color="#80CBC4", actions=["collapsible"]
)
id_bba = pipeline.add_node(parent=id_bb, name="bba", visible=1, color="#00838F")
id_bbb = pipeline.add_node(parent=id_bb, name="bbb", visible=1, color="#4DB6AC")
pipeline.update()
local_file_manager = LocalFileManager(__file__)
local_file_manager.url("test", BASE / "icons/abacus.svg")
local_file_manager.url("delete", BASE / "icons/trash-can-outline.svg")
local_file_manager.url("collapsed", BASE / "icons/chevron-up.svg")
local_file_manager.url("collapsible", BASE / "icons/chevron-down.svg")
# -----------------------------------------------------------------------------
# Callback
# -----------------------------------------------------------------------------
# @state.change("git_tree")
# def pipeline_changed(git_tree, **kwargs):
# print(git_tree)
def on_action(event):
print("on_action", event)
_id = event.get("id")
_action = event.get("action")
if _action.startswith("collap"):
print(pipeline.toggle_collapsed(_id))
def on_event(event):
print(event)
# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------
with SinglePageLayout(server) as layout:
layout.title.set_text("Git Tree")
with layout.content:
trame.GitTree(
sources=("git_tree",),
action_map=("icons", local_file_manager.assets),
action_size=25,
action=(on_action, "[$event]"),
# visibility_change=(on_event, "[$event]"),
# actives_change=(on_event, "[$event]"),
)
# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------
if __name__ == "__main__":
server.start()
|
