From 56c071e2734e3812c7c77b611637cbc2698eb7d3 Mon Sep 17 00:00:00 2001
From: Nathaniel Braun <unknown>
Date: Thu, 8 Jan 2026 08:22:01 +1100
Subject: Feature [feature-requests:#184]. Add option to disable drag/drop
 editing SCI_SETDRAGDROPENABLED. Fully implemented on Win32 but may only
 prevent dragging on other platforms.

---
 src/Editor.cxx | 12 ++++++++++--
 src/Editor.h   |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/Editor.cxx b/src/Editor.cxx
index 1ad99c3ca..a2c3e0fe9 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -143,6 +143,7 @@ Editor::Editor() : durationWrapOneByte(0.000001, 0.00000001, 0.00001) {
 	dwelling = false;
 	ptMouseLast.x = 0;
 	ptMouseLast.y = 0;
+	dragDropEnabled = true;
 	inDragDrop = DragDrop::none;
 	dropWentOutside = false;
 	posDrop = SelectionPosition(Sci::invalidPosition);
@@ -5041,7 +5042,7 @@ void Editor::ButtonMoveWithModifiers(Point pt, unsigned int, KeyMod modifiers) {
 		AllowVirtualSpace(virtualSpaceOptions, sel.IsRectangular()));
 	movePos = MovePositionOutsideChar(movePos, sel.MainCaret() - movePos.Position());
 
-	if (inDragDrop == DragDrop::initial) {
+	if (dragDropEnabled && inDragDrop == DragDrop::initial) {
 		if (DragThreshold(ptMouseLast, pt)) {
 			ChangeMouseCapture(false);
 			SetDragPosition(movePos);
@@ -5139,7 +5140,7 @@ void Editor::ButtonMoveWithModifiers(Point pt, unsigned int, KeyMod modifiers) {
 			}
 		}
 		// Display regular (drag) cursor over selection
-		if (PointInSelection(pt) && !SelectionEmpty()) {
+		if (PointInSelection(pt) && !SelectionEmpty() && dragDropEnabled) {
 			DisplayCursor(Window::Cursor::arrow);
 			SetHoverIndicatorPosition(Sci::invalidPosition);
 		} else {
@@ -7084,6 +7085,13 @@ sptr_t Editor::WndProc(Message iMessage, uptr_t wParam, sptr_t lParam) {
 	case Message::GetBufferedDraw:
 		return view.bufferedDraw;
 
+	case Message::GetDragDropEnabled:
+		return dragDropEnabled;
+
+	case Message::SetDragDropEnabled:
+		dragDropEnabled = wParam != 0;
+		break;
+
 #ifdef INCLUDE_DEPRECATED_FEATURES
 	case SCI_GETTWOPHASEDRAW:
 		return view.phasesDraw == EditView::phasesTwo;
diff --git a/src/Editor.h b/src/Editor.h
index f8bc18970..95b83f1f7 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -238,6 +238,7 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	bool dwelling;
 	enum class TextUnit { character, word, subLine, wholeLine } selectionUnit;
 	Point ptMouseLast;
+	bool dragDropEnabled;
 	enum class DragDrop { none, initial, dragging } inDragDrop;
 	bool dropWentOutside;
 	SelectionPosition posDrop;
-- 
cgit v1.2.3