Merge pull request #37846 from CaptainProton42/text-edit-undo-stack-size

Add "undo_max_stack_size" property to TextEdit

scene/gui/text_edit.cpp

@@ -6215,6 +6215,10 @@ void TextEdit::_push_current_op() {
 	current_op.type = TextOperation::TYPE_NONE;
 	current_op.text = "";
 	current_op.chain_forward = false;
+
+	if (undo_stack.size() > undo_stack_max_size) {
+		undo_stack.pop_front();
+	}
 }
 
 void TextEdit::set_indent_using_spaces(const bool p_use_spaces) {
@@ -7239,6 +7243,8 @@ void TextEdit::_bind_methods() {
 
 	GLOBAL_DEF("gui/timers/text_edit_idle_detect_sec", 3);
 	ProjectSettings::get_singleton()->set_custom_property_info("gui/timers/text_edit_idle_detect_sec", PropertyInfo(Variant::FLOAT, "gui/timers/text_edit_idle_detect_sec", PROPERTY_HINT_RANGE, "0,10,0.01,or_greater")); // No negative numbers.
+	GLOBAL_DEF("gui/common/text_edit_undo_stack_max_size", 1024);
+	ProjectSettings::get_singleton()->set_custom_property_info("gui/common/text_edit_undo_stack_max_size", PropertyInfo(Variant::INT, "gui/common/text_edit_undo_stack_max_size", PROPERTY_HINT_RANGE, "0,10000,1,or_greater")); // No negative numbers.
 }
 
 TextEdit::TextEdit() {
@@ -7318,6 +7324,7 @@ TextEdit::TextEdit() {
 
 	current_op.type = TextOperation::TYPE_NONE;
 	undo_enabled = true;
+	undo_stack_max_size = GLOBAL_GET("gui/common/text_edit_undo_stack_max_size");
 	undo_stack_pos = nullptr;
 	setting_text = false;
 	last_dblclk = 0;

scene/gui/text_edit.h

@@ -306,6 +306,7 @@ private:
 
 	List<TextOperation> undo_stack;
 	List<TextOperation>::Element *undo_stack_pos;
+	int undo_stack_max_size;
 
 	void _clear_redo();
 	void _do_text_op(const TextOperation &p_op, bool p_reverse);