Enable entering vi navigation mode

CHANGELOG.rst

@@ -4,6 +4,21 @@ Changelog
 
 Notable changes to this project will be documented in this file.
 
+*********************
+v1.6.1 - (2022-05-08)
+*********************
+
+Changed
+=======
+
+- Allow ``file:`` scheme links in markdown
+
+Fixed
+=====
+
+- Enable entering vi navigation mode
+- Change "go to matching bracket" command key-binding in micro mode to :kbd:`Alt+(` / :kbd:`Alt+)`, so as not to conflict with the "find-next" command
+
 *********************
 v1.6.0 - (2022-04-26)
 *********************

euporie/commands/notebook.py

@@ -2,7 +2,7 @@
 
 import logging
 
-from prompt_toolkit.filters import buffer_has_focus
+from prompt_toolkit.filters import buffer_has_focus, vi_mode, vi_navigation_mode
 
 from euporie.app.current import get_edit_app as get_app
 from euporie.commands.registry import add
@@ -45,7 +45,9 @@ def enter_cell_edit_mode() -> "None":
 
 @add(
     keys="escape",
-    filter=cell_has_focus & buffer_has_focus,
+    filter=cell_has_focus
+    & buffer_has_focus
+    & (~vi_mode | (vi_mode & vi_navigation_mode)),
     group="notebook",
 )
 def exit_edit_mode() -> "None":

euporie/filters.py

@@ -7,8 +7,11 @@
 from prompt_toolkit.filters import (
     Condition,
     emacs_insert_mode,
+    emacs_mode,
     to_filter,
     vi_insert_mode,
+    vi_mode,
+    vi_replace_mode,
 )
 
 from euporie.app.current import get_edit_app as get_app
@@ -265,5 +268,12 @@ def kernel_is_python() -> "bool":
     )
 
 
-"""Determine if any binding style is in insert mode"""
-insert_mode = vi_insert_mode | emacs_insert_mode | micro_insert_mode
+"""Determine if any binding style is in insert mode."""
+insert_mode = (
+    (vi_mode & vi_insert_mode)
+    | (emacs_mode & emacs_insert_mode)
+    | (micro_mode & micro_insert_mode)
+)
+
+"""Determine if any binding style is in replace mode."""
+replace_mode = micro_replace_mode | vi_replace_mode

euporie/tabs/notebook.py

@@ -27,6 +27,7 @@
 
 from euporie.app.current import get_edit_app as get_app
 from euporie.config import config
+from euporie.filters import insert_mode, replace_mode
 from euporie.key_binding.bindings.commands import load_command_bindings
 from euporie.suggest import KernelAutoSuggest
 from euporie.tabs.base import Tab
@@ -938,7 +939,7 @@ def statusbar_fields(
         """Generates the formatted text for the statusbar."""
         return (
             [
-                "^" if self.edit_mode else ">",
+                self.mode(),
                 f"Cell {self.page.selected_slice.start+1}",
                 "Saving.." if self.saving else "",
             ],
@@ -947,3 +948,24 @@ def statusbar_fields(
                 KERNEL_STATUS_REPR[self.kernel.status] if self.kernel else ".",
             ],
         )
+
+    def mode(self) -> "str":
+        """Returns a symbol representing the current mode.
+
+        * ``^``: Notebook mode
+        * ``>``: Navigation mode
+        * ``I``: Insert mode
+        * ``v``: Visual mode
+
+        Returns:
+            A character representing the current mode
+        """
+        # TODO - sort this out
+        if self.edit_mode:
+            if insert_mode():
+                return "I"
+            elif replace_mode():
+                return "o"
+            else:
+                return ">"
+        return "^"