perf(borders): introduce state snapshot checks

This commit introduce state snapshot checks in the border manager, which
will ensure that we don't even attempt to acquire any mutex locks if the
state hasn't changed.

komorebi-core/src/arrangement.rs

@@ -604,7 +604,16 @@ impl Arrangement for CustomLayout {
 }
 
 #[derive(
-    Clone, Copy, Debug, Serialize, Deserialize, Display, EnumString, ValueEnum, JsonSchema,
+    Clone,
+    Copy,
+    Debug,
+    Serialize,
+    Deserialize,
+    Display,
+    EnumString,
+    ValueEnum,
+    JsonSchema,
+    PartialEq,
 )]
 pub enum Axis {
     Horizontal,

komorebi-core/src/custom_layout.rs

@@ -14,7 +14,7 @@ use serde::Serialize;
 
 use crate::Rect;
 
-#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
 pub struct CustomLayout(Vec<Column>);
 
 impl Deref for CustomLayout {
@@ -250,7 +250,7 @@ impl CustomLayout {
     }
 }
 
-#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
 #[serde(tag = "column", content = "configuration")]
 pub enum Column {
     Primary(Option<ColumnWidth>),
@@ -258,18 +258,18 @@ pub enum Column {
     Tertiary(ColumnSplit),
 }
 
-#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
 pub enum ColumnWidth {
     WidthPercentage(f32),
 }
 
-#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
 pub enum ColumnSplit {
     Horizontal,
     Vertical,
 }
 
-#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
 pub enum ColumnSplitWithCapacity {
     Horizontal(usize),
     Vertical(usize),

komorebi-core/src/layout.rs

@@ -7,7 +7,7 @@ use crate::CustomLayout;
 use crate::DefaultLayout;
 use crate::Direction;
 
-#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema)]
+#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema, PartialEq)]
 pub enum Layout {
     Default(DefaultLayout),
     Custom(CustomLayout),