From 40743b98d285c631c97e58fbc8228f37ffa25ed7 Mon Sep 17 00:00:00 2001
From: reugenio <yo@reugenio.com>
Date: Sun, 28 Dec 2025 02:19:04 +0100
Subject: [PATCH] feat(table_core): Add injection support to RowEditBuffer

- Add is_injected: bool to distinguish injected rows
- Add injection_index: ?usize for insertion position
- Add startInjectedEdit() method for Ctrl+N between lines
- Update startEdit/clear to reset new fields
---
 src/widgets/table_core.zig | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/widgets/table_core.zig b/src/widgets/table_core.zig
index b1ec025..b98399e 100644
--- a/src/widgets/table_core.zig
+++ b/src/widgets/table_core.zig
@@ -1297,7 +1297,7 @@ pub const PendingCellChange = struct {
 /// Buffer para acumular cambios de una fila antes de commit
 /// Usado por los states de los widgets, procesado por funciones de table_core
 pub const RowEditBuffer = struct {
-    /// ID de la fila siendo editada (NEW_ROW_ID si es ghost row)
+    /// ID de la fila siendo editada (NEW_ROW_ID si es ghost row o inyectada)
     row_id: i64 = NEW_ROW_ID,
 
     /// Índice de fila (para navegación)
@@ -1309,6 +1309,12 @@ pub const RowEditBuffer = struct {
     /// Hay cambios pendientes
     has_changes: bool = false,
 
+    /// True si es una fila inyectada (Ctrl+N entre líneas)
+    is_injected: bool = false,
+
+    /// Índice donde se insertó la fila inyectada (null si no es inyección)
+    injection_index: ?usize = null,
+
     /// Buffers de valores por columna (almacenamiento fijo)
     value_buffers: [MAX_PENDING_COLUMNS][MAX_CELL_VALUE_LEN]u8 = undefined,
 
@@ -1327,6 +1333,24 @@ pub const RowEditBuffer = struct {
         self.row_index = row_index;
         self.is_new_row = is_new;
         self.has_changes = false;
+        self.is_injected = false;
+        self.injection_index = null;
+        self.change_count = 0;
+        for (0..MAX_PENDING_COLUMNS) |i| {
+            self.changed_cols[i] = false;
+            self.value_lens[i] = 0;
+        }
+    }
+
+    /// Inicializa buffer para una fila inyectada (Ctrl+N entre líneas)
+    /// insertion_idx es el índice visual donde aparece la fila nueva
+    pub fn startInjectedEdit(self: *RowEditBuffer, insertion_idx: usize) void {
+        self.row_id = NEW_ROW_ID;
+        self.row_index = insertion_idx;
+        self.is_new_row = true;
+        self.has_changes = false;
+        self.is_injected = true;
+        self.injection_index = insertion_idx;
         self.change_count = 0;
         for (0..MAX_PENDING_COLUMNS) |i| {
             self.changed_cols[i] = false;
@@ -1365,6 +1389,8 @@ pub const RowEditBuffer = struct {
         self.row_index = 0;
         self.is_new_row = false;
         self.has_changes = false;
+        self.is_injected = false;
+        self.injection_index = null;
         self.change_count = 0;
         for (0..MAX_PENDING_COLUMNS) |i| {
             self.changed_cols[i] = false;