Ability to view markdown without clicking on them in file explorer.

frogmouth/screens/main.py

@@ -111,7 +111,7 @@ def compose(self) -> ComposeResult:
             yield Viewer(classes="focusable")
         yield Footer()
 
-    def visit(self, location: Path | URL, remember: bool = True) -> None:
+    def visit(self, location: Path | URL, remember: bool = True, focus:bool = True) -> None:
         """Visit the given location.
 
         Args:
@@ -122,7 +122,7 @@ def visit(self, location: Path | URL, remember: bool = True) -> None:
         # locally in the filesystem or out on the web...
         if maybe_markdown(location):
             # ...attempt to visit it in the viewer.
-            self.query_one(Viewer).visit(location, remember)
+            self.query_one(Viewer).visit(location, remember, focus)
         elif isinstance(location, Path):
             # So, it's not Markdown, but it *is* a Path of some sort. If the
             # resource seems to exist...
@@ -303,7 +303,7 @@ def on_local_files_goto(self, event: LocalFiles.Goto) -> None:
         Args:
             event: The local file visit request event.
         """
-        self.visit(event.location)
+        self.visit(event.location , focus=event.focus_viewer)
 
     def on_history_goto(self, event: History.Goto) -> None:
         """Handle a request to go to a location from history.

frogmouth/widgets/navigation_panes/local_files.py

@@ -4,11 +4,13 @@
 
 from pathlib import Path
 from typing import Iterable
+import os
 
 from httpx import URL
 from textual.app import ComposeResult
 from textual.message import Message
 from textual.widgets import DirectoryTree
+from textual.types import DirEntry
 
 from ...utility import maybe_markdown
 from .navigation_pane import NavigationPane
@@ -84,7 +86,7 @@ def set_focus_within(self) -> None:
     class Goto(Message):
         """Message that requests the viewer goes to a given location."""
 
-        def __init__(self, location: Path | URL) -> None:
+        def __init__(self, location: Path | URL, focus_viewer:bool) -> None:
             """Initialise the history goto message.
 
             Args:
@@ -93,6 +95,8 @@ def __init__(self, location: Path | URL) -> None:
             super().__init__()
             self.location = location
             """The location to go to."""
+            self.focus_viewer = focus_viewer
+            """Viewer has to be focused or not"""
 
     def on_directory_tree_file_selected(
         self, event: DirectoryTree.FileSelected
@@ -103,4 +107,18 @@ def on_directory_tree_file_selected(
             event: The direct tree selection event.
         """
         event.stop()
-        self.post_message(self.Goto(Path(event.path)))
+        self.post_message(self.Goto(Path(event.path) , True))
+
+    def on_tree_node_highlighted(self, event: DirectoryTree.NodeHighlighted):
+        """Handle node highlight in directory tree.
+
+        Args:
+            event: The directory node highlight event.
+        """
+
+        event.stop()
+        if not event.node.data:
+            return
+        pathEntry: DirEntry = event.node.data
+
+        return os.path.isfile(pathEntry.path) and self.post_message(self.Goto(Path(pathEntry.path), False))

frogmouth/widgets/viewer.py

@@ -254,7 +254,7 @@ async def _remote_load(self, location: URL, remember: bool = True) -> None:
             # to the user. Let's be nice...
             open_url(str(location))
 
-    def visit(self, location: Path | URL, remember: bool = True) -> None:
+    def visit(self, location: Path | URL, remember: bool = True, focus:bool=True) -> None:
         """Visit a location.
 
         Args:
@@ -263,6 +263,7 @@ def visit(self, location: Path | URL, remember: bool = True) -> None:
         """
         # Based on the type of the location, load up the content.
         if isinstance(location, Path):
+            self.can_focus = focus
             self._local_load(location.expanduser().resolve(), remember)
         elif isinstance(location, URL):
             self._remote_load(location, remember)