mirror of
https://github.com/Textualize/textual.git
synced 2025-10-17 02:38:12 +03:00
e5033d7d23
* Remove hanging lines from docstrings. Deleted hanging blank lines at the end of docstrings. Regex pattern: - find `\n\n( *)"""` - replace with `\n$1"""`
78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
"""
|
|
Code browser example.
|
|
|
|
Run with:
|
|
|
|
python code_browser.py PATH
|
|
"""
|
|
|
|
import sys
|
|
|
|
from rich.syntax import Syntax
|
|
from rich.traceback import Traceback
|
|
|
|
from textual import events
|
|
from textual.app import App, ComposeResult
|
|
from textual.containers import Container, VerticalScroll
|
|
from textual.reactive import var
|
|
from textual.widgets import DirectoryTree, Footer, Header, Static
|
|
|
|
|
|
class CodeBrowser(App):
|
|
"""Textual code browser app."""
|
|
|
|
CSS_PATH = "code_browser.css"
|
|
BINDINGS = [
|
|
("f", "toggle_files", "Toggle Files"),
|
|
("q", "quit", "Quit"),
|
|
]
|
|
|
|
show_tree = var(True)
|
|
|
|
def watch_show_tree(self, show_tree: bool) -> None:
|
|
"""Called when show_tree is modified."""
|
|
self.set_class(show_tree, "-show-tree")
|
|
|
|
def compose(self) -> ComposeResult:
|
|
"""Compose our UI."""
|
|
path = "./" if len(sys.argv) < 2 else sys.argv[1]
|
|
yield Header()
|
|
with Container():
|
|
yield DirectoryTree(path, id="tree-view")
|
|
with VerticalScroll(id="code-view"):
|
|
yield Static(id="code", expand=True)
|
|
yield Footer()
|
|
|
|
def on_mount(self, event: events.Mount) -> None:
|
|
self.query_one(DirectoryTree).focus()
|
|
|
|
def on_directory_tree_file_selected(
|
|
self, event: DirectoryTree.FileSelected
|
|
) -> None:
|
|
"""Called when the user click a file in the directory tree."""
|
|
event.stop()
|
|
code_view = self.query_one("#code", Static)
|
|
try:
|
|
syntax = Syntax.from_path(
|
|
event.path,
|
|
line_numbers=True,
|
|
word_wrap=False,
|
|
indent_guides=True,
|
|
theme="github-dark",
|
|
)
|
|
except Exception:
|
|
code_view.update(Traceback(theme="github-dark", width=None))
|
|
self.sub_title = "ERROR"
|
|
else:
|
|
code_view.update(syntax)
|
|
self.query_one("#code-view").scroll_home(animate=False)
|
|
self.sub_title = event.path
|
|
|
|
def action_toggle_files(self) -> None:
|
|
"""Called in response to key binding."""
|
|
self.show_tree = not self.show_tree
|
|
|
|
|
|
if __name__ == "__main__":
|
|
CodeBrowser().run()
|