Add Unbind Setting for Keybinds

Adds the `unbind: true` and `unbind: false` flag under
keybinds.

Unbinds all default Keybinds.

Some enums are here already for more flexible unbinds.

example/config.yaml

@@ -1,5 +1,6 @@
 ---
 keybinds:
+    unbind: true
     normal:
         - action: [GoToTab: 1,]
           key: [F: 1,]

src/common/input/keybinds.rs

@@ -7,14 +7,29 @@ use serde::Deserialize;
 use strum::IntoEnumIterator;
 use zellij_tile::data::*;
 
+/// Used in the config struct
 #[derive(Clone, Debug, PartialEq)]
 pub struct Keybinds(HashMap<InputMode, ModeKeybinds>);
 #[derive(Clone, Debug, Default, PartialEq)]
 pub struct ModeKeybinds(HashMap<Key, Vec<Action>>);
 
 /// Intermediate struct used for deserialisation
+/// Used in the config file.
 #[derive(Clone, Debug, PartialEq, Deserialize)]
-pub struct KeybindsFromYaml(HashMap<InputMode, Vec<KeyActionFromYaml>>);
+pub struct KeybindsFromYaml {
+    #[serde(flatten)]
+    keybinds: HashMap<InputMode, Vec<KeyActionUnbind>>,
+    unbind: Unbind,
+}
+
+/// Intermediate enum used for deserialisation
+#[derive(Clone, Debug, PartialEq, Deserialize)]
+#[serde(untagged)]
+enum KeyActionUnbind {
+    KeyAction(KeyActionFromYaml),
+    // TODO: use the enum
+    //Unbind(UnbindFromYaml),
+}
 
 /// Intermediate struct used for deserialisation
 #[derive(Clone, Debug, PartialEq, Deserialize)]
@@ -23,6 +38,22 @@ pub struct KeyActionFromYaml {
     key: Vec<Key>,
 }
 
+/// Intermediate struct used for deserialisation
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize)]
+struct UnbindFromYaml {
+    unbind: Unbind,
+}
+
+/// List of keys, for which to disable their respective default actions
+/// `All` is a catch all, and will disable the default actions for all keys.
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize)]
+#[serde(untagged)]
+enum Unbind {
+    All(bool),
+    // TODO: use the enum
+    //Keys(Vec<Key>),
+}
+
 impl Default for Keybinds {
     fn default() -> Keybinds {
         let mut defaults = Keybinds::new();
@@ -41,9 +72,16 @@ impl Keybinds {
         Keybinds(HashMap::<InputMode, ModeKeybinds>::new())
     }
 
-    pub fn get_default_keybinds_with_config(keybinds: Option<KeybindsFromYaml>) -> Keybinds {
-        let default_keybinds = Keybinds::default();
-        if let Some(keybinds) = keybinds {
+    pub fn get_default_keybinds_with_config(from_yaml: Option<KeybindsFromYaml>) -> Keybinds {
+        let default_keybinds = match from_yaml.clone() {
+            Some(keybinds) => match keybinds.unbind {
+                Unbind::All(true) => Keybinds::new(),
+                Unbind::All(false) => Keybinds::default(),
+            },
+            None => Keybinds::default(),
+        };
+
+        if let Some(keybinds) = from_yaml {
             default_keybinds.merge_keybinds(Keybinds::from(keybinds))
         } else {
             default_keybinds
@@ -336,7 +374,7 @@ impl From<KeybindsFromYaml> for Keybinds {
 
         for mode in InputMode::iter() {
             let mut mode_keybinds = ModeKeybinds::new();
-            for key_action in keybinds_from_yaml.0.get(&mode).iter() {
+            for key_action in keybinds_from_yaml.keybinds.get(&mode).iter() {
                 for keybind in key_action.iter() {
                     mode_keybinds = mode_keybinds.merge(ModeKeybinds::from(keybind.clone()));
                 }
@@ -362,6 +400,15 @@ impl From<KeyActionFromYaml> for ModeKeybinds {
     }
 }
 
+// Currently an enum for future use
+impl From<KeyActionUnbind> for ModeKeybinds {
+    fn from(key_action_unbind: KeyActionUnbind) -> ModeKeybinds {
+        match key_action_unbind {
+            KeyActionUnbind::KeyAction(key_action) => ModeKeybinds::from(key_action),
+        }
+    }
+}
+
 // The unit test location.
 #[cfg(test)]
 #[path = "./unit/keybinds_test.rs"]