Feat: introduce follow up actions

src/state/editor.rs

@@ -24,26 +24,37 @@ pub enum PatternPropsField {
     Speed,
     Quantization,
     SyncMode,
+    FollowUp,
+    ChainBank,
+    ChainPattern,
 }
 
 impl PatternPropsField {
-    pub fn next(&self) -> Self {
+    pub fn next(&self, follow_up_is_chain: bool) -> Self {
         match self {
             Self::Name => Self::Length,
             Self::Length => Self::Speed,
             Self::Speed => Self::Quantization,
             Self::Quantization => Self::SyncMode,
-            Self::SyncMode => Self::SyncMode,
+            Self::SyncMode => Self::FollowUp,
+            Self::FollowUp if follow_up_is_chain => Self::ChainBank,
+            Self::FollowUp => Self::FollowUp,
+            Self::ChainBank => Self::ChainPattern,
+            Self::ChainPattern => Self::ChainPattern,
         }
     }
 
-    pub fn prev(&self) -> Self {
+    pub fn prev(&self, follow_up_is_chain: bool) -> Self {
         match self {
             Self::Name => Self::Name,
             Self::Length => Self::Name,
             Self::Speed => Self::Length,
             Self::Quantization => Self::Speed,
             Self::SyncMode => Self::Quantization,
+            Self::FollowUp => Self::SyncMode,
+            Self::ChainBank => Self::FollowUp,
+            Self::ChainPattern if follow_up_is_chain => Self::ChainBank,
+            Self::ChainPattern => Self::FollowUp,
         }
     }
 }

src/state/modal.rs

@@ -1,4 +1,4 @@
-use crate::model::{LaunchQuantization, PatternSpeed, SyncMode};
+use crate::model::{FollowUp, LaunchQuantization, PatternSpeed, SyncMode};
 use crate::state::editor::{EuclideanField, PatternField, PatternPropsField};
 use crate::state::file_browser::FileBrowserState;
 
@@ -77,6 +77,7 @@ pub enum Modal {
         speed: PatternSpeed,
         quantization: LaunchQuantization,
         sync_mode: SyncMode,
+        follow_up: FollowUp,
     },
     KeybindingsHelp {
         scroll: usize,

src/state/playback.rs

@@ -1,5 +1,5 @@
 use crate::engine::PatternChange;
-use crate::model::{LaunchQuantization, PatternSpeed, SyncMode};
+use crate::model::{FollowUp, LaunchQuantization, PatternSpeed, SyncMode};
 use std::collections::{HashMap, HashSet};
 
 #[derive(Clone)]
@@ -21,6 +21,7 @@ pub struct StagedPropChange {
     pub speed: PatternSpeed,
     pub quantization: LaunchQuantization,
     pub sync_mode: SyncMode,
+    pub follow_up: FollowUp,
 }
 
 pub struct PlaybackState {