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53 lines
2.7 KiB
Python
53 lines
2.7 KiB
Python
import os
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from textual.widgets import DirectoryTree
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class EnhancedDirectoryTree(DirectoryTree):
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def expand_to_path(self, target_path: str) -> None:
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"""Expand the directory tree to the target path, loading any directories as needed."""
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# TODO: os.path.normcase, and maybe os.path.samefile check
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# Also, if I'm going to make a PR for this feature,
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# - I should test it with symbolic links, and UNC paths on Windows.
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# - There should be an attribute to expand to a path initially.
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# - Maybe this method should return the node if it was found.
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# - Could avoid some get_node_name calls by flagging if there's a match.
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# - Definitely want to figure out how to avoid the timers.
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node = self.root
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def get_node_name(node):
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return os.path.basename(node.data.path.rstrip(os.path.sep))
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for path_segment in target_path.split(os.path.sep):
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# Find the child node with the right name.
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for child in node.children:
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if get_node_name(child) == path_segment:
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node = child
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break
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if get_node_name(node) == path_segment:
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if node.data.is_dir:
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if not node.is_expanded and not node.data.loaded:
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# load_directory also calls node.expand()
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self.load_directory(node)
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else:
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# Found a file.
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break
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else:
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# Directory or file not found.
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break
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# Timer is needed to wait for the new nodes to mount, I think.
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# self.select_node(node)
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self.set_timer(0.01, lambda: self.select_node(node))
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# widget.scroll_to_region supports a `top` argument,
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# but self.scroll_to_node doesn't.
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# A simple workaround is to scroll to the bottom first.
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# self.scroll_to_line(self.last_line)
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# self.scroll_to_node(node)
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# That would work if scroll_to_node and scroll_to_line didn't animate,
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# but the animations conflicts with each other and it ends up in the wrong spot.
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# They don't support widget.scroll_to_region's `animate` argument either.
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# Oh but I can use scroll_visible instead.
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# node.scroll_visible(animate=False, top=True)
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# That is, if node was a widget!
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# Ugh. OK, I'm going to use some internals, and replicate how scroll_to_node works.
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# self.scroll_to_region(self._get_label_region(node._line), animate=False, top=True)
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# Timer is needed to wait for the new nodes to mount, I think.
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self.set_timer(0.01, lambda: self.scroll_to_region(self._get_label_region(node._line), animate=False, top=True))
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