InputHandler now uses a stack for active modes

instead of having a single mode enabled, modes can be pushed/poped,
with the top of the stack being the active mode.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/input_handler.hh b/src/input_handler.hh
index 8086323c..999f444b 100644
--- a/src/input_handler.hh
+++ b/src/input_handler.hh
@@ -87,10 +87,13 @@ private:
     Context m_context;
 
     friend class InputMode;
-    std::unique_ptr<InputMode> m_mode;
+    Vector<std::unique_ptr<InputMode>> m_mode_stack;
     Vector<std::unique_ptr<InputMode>> m_mode_trash;
 
-    void change_input_mode(InputMode* new_mode);
+    InputMode& current_mode() const { return *m_mode_stack.back(); }
+
+    void push_mode(InputMode* new_mode);
+    void pop_mode(InputMode* current_mode);
 
     using Insertion = std::pair<InsertMode, Vector<Key>>;
     Insertion m_last_insert = {InsertMode::Insert, {}};