Fix select all being enabled when the list is empty and an edge is selected

Author: object-Object

CHANGELOG.md

@@ -25,6 +25,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 - Fixed an issue where newly placed splicing tables would default to having the first iota selected.
 - Fixed several bugs/exploits related to the Splicing Table's media buffer ([#40](https://github.com/object-Object/HexDebug/pull/40), [#41](https://github.com/object-Object/HexDebug/pull/41), [#44](https://github.com/object-Object/HexDebug/pull/44), [#45](https://github.com/object-Object/HexDebug/pull/45)).
 - Fixed Lodestone Reflection not working in the Mindsplice Table ([#42](https://github.com/object-Object/HexDebug/pull/42)).
+- Fixed a bug in the Splicing Table where the Select All button was enabled when the list was empty and the left edge was selected. 
 
 ## `0.4.0+1.20.1` - 2025-09-21
 

Common/src/main/kotlin/gay/object/hexdebug/splicing/SplicingTableAction.kt

@@ -149,8 +149,8 @@ enum class SplicingTableAction(val value: Value<*>) {
     SELECT_ALL(Value(
         ReadList,
         consumesMedia = false,
-        test = { selection, _ -> selection != Selection.range(0, lastIndex) },
-        validate = { selection != Selection.range(0, list.lastIndex) },
+        test = { selection, _ -> selection != Selection.range(0, lastIndex) && listSize > 0 },
+        validate = { selection != Selection.range(0, list.lastIndex) && list.size > 0 },
     ) {
         selection = Selection.range(0, list.lastIndex)
     }),

Common/src/main/kotlin/gay/object/hexdebug/splicing/SplicingTableClientView.kt

@@ -26,6 +26,7 @@ data class SplicingTableClientView(
     val isClipboardReadable = null != clipboard // thanks kotlin
 
     val lastIndex = list?.lastIndex ?: -1
+    val listSize = list?.size ?: 0
 
     fun isInRange(index: Int) = list?.let { index in it.indices } ?: false