Add TextEdit option to prevent copying without a selection

doc/classes/EditorSettings.xml

@@ -1199,6 +1199,9 @@
 		<member name="text_editor/behavior/files/trim_trailing_whitespace_on_save" type="bool" setter="" getter="">
 			If [code]true[/code], trims trailing whitespace when saving a script. Trailing whitespace refers to tab and space characters placed at the end of lines. Since these serve no practical purpose, they can and should be removed to make version control diffs less noisy.
 		</member>
+		<member name="text_editor/behavior/general/empty_selection_clipboard" type="bool" setter="" getter="">
+			If [code]true[/code], copying or cutting without a selection is performed on all lines with a caret. Otherwise, copy and cut require a selection.
+		</member>
 		<member name="text_editor/behavior/indent/auto_indent" type="bool" setter="" getter="">
 			If [code]true[/code], automatically indents code when pressing the [kbd]Enter[/kbd] key based on blocks above the new line.
 		</member>

doc/classes/TextEdit.xml

@@ -1299,6 +1299,9 @@
 		<member name="editable" type="bool" setter="set_editable" getter="is_editable" default="true" keywords="readonly, disabled, enabled">
 			If [code]false[/code], existing text cannot be modified and new text cannot be added.
 		</member>
+		<member name="empty_selection_clipboard_enabled" type="bool" setter="set_empty_selection_clipboard_enabled" getter="is_empty_selection_clipboard_enabled" default="true">
+			If [code]true[/code], copying or cutting without a selection is performed on all lines with a caret. Otherwise, copy and cut require a selection.
+		</member>
 		<member name="focus_mode" type="int" setter="set_focus_mode" getter="get_focus_mode" overrides="Control" enum="Control.FocusMode" default="2" />
 		<member name="highlight_all_occurrences" type="bool" setter="set_highlight_all_occurrences" getter="is_highlight_all_occurrences_enabled" default="false">
 			If [code]true[/code], all occurrences of the selected text will be highlighted.

editor/code_editor.cpp

@@ -1068,6 +1068,9 @@ void CodeTextEditor::update_editor_settings() {
 	text_editor->set_draw_spaces(EDITOR_GET("text_editor/appearance/whitespace/draw_spaces"));
 	text_editor->add_theme_constant_override("line_spacing", EDITOR_GET("text_editor/appearance/whitespace/line_spacing"));
 
+	// Behavior: General
+	text_editor->set_empty_selection_clipboard_enabled(EDITOR_GET("text_editor/behavior/general/empty_selection_clipboard"));
+
 	// Behavior: Navigation
 	text_editor->set_scroll_past_end_of_file_enabled(EDITOR_GET("text_editor/behavior/navigation/scroll_past_end_of_file"));
 	text_editor->set_smooth_scroll_enabled(EDITOR_GET("text_editor/behavior/navigation/smooth_scrolling"));

editor/editor_settings.cpp

@@ -657,6 +657,9 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	EDITOR_SETTING(Variant::INT, PROPERTY_HINT_RANGE, "text_editor/appearance/whitespace/line_spacing", 4, "0,50,1")
 
 	// Behavior
+	// Behavior: General
+	_initial_set("text_editor/behavior/general/empty_selection_clipboard", true);
+
 	// Behavior: Navigation
 	_initial_set("text_editor/behavior/navigation/move_caret_on_right_click", true);
 	_initial_set("text_editor/behavior/navigation/scroll_past_end_of_file", false);

scene/gui/code_edit.cpp

@@ -831,6 +831,9 @@ void CodeEdit::_cut_internal(int p_caret) {
 		delete_selection(p_caret);
 		return;
 	}
+	if (!is_empty_selection_clipboard_enabled()) {
+		return;
+	}
 	if (p_caret == -1) {
 		delete_lines();
 	} else {

scene/gui/text_edit.cpp

@@ -3366,6 +3366,14 @@ bool TextEdit::is_middle_mouse_paste_enabled() const {
 	return middle_mouse_paste_enabled;
 }
 
+void TextEdit::set_empty_selection_clipboard_enabled(bool p_enabled) {
+	empty_selection_clipboard_enabled = p_enabled;
+}
+
+bool TextEdit::is_empty_selection_clipboard_enabled() const {
+	return empty_selection_clipboard_enabled;
+}
+
 // Text manipulation
 void TextEdit::clear() {
 	setting_text = true;
@@ -6568,6 +6576,9 @@ void TextEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_middle_mouse_paste_enabled", "enabled"), &TextEdit::set_middle_mouse_paste_enabled);
 	ClassDB::bind_method(D_METHOD("is_middle_mouse_paste_enabled"), &TextEdit::is_middle_mouse_paste_enabled);
 
+	ClassDB::bind_method(D_METHOD("set_empty_selection_clipboard_enabled", "enabled"), &TextEdit::set_empty_selection_clipboard_enabled);
+	ClassDB::bind_method(D_METHOD("is_empty_selection_clipboard_enabled"), &TextEdit::is_empty_selection_clipboard_enabled);
+
 	// Text manipulation
 	ClassDB::bind_method(D_METHOD("clear"), &TextEdit::clear);
 
@@ -6961,6 +6972,7 @@ void TextEdit::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "drag_and_drop_selection_enabled"), "set_drag_and_drop_selection_enabled", "is_drag_and_drop_selection_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "virtual_keyboard_enabled"), "set_virtual_keyboard_enabled", "is_virtual_keyboard_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "middle_mouse_paste_enabled"), "set_middle_mouse_paste_enabled", "is_middle_mouse_paste_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "empty_selection_clipboard_enabled"), "set_empty_selection_clipboard_enabled", "is_empty_selection_clipboard_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "wrap_mode", PROPERTY_HINT_ENUM, "None,Boundary"), "set_line_wrapping_mode", "get_line_wrapping_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Arbitrary:1,Word:2,Word (Smart):3"), "set_autowrap_mode", "get_autowrap_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "indent_wrapped_lines"), "set_indent_wrapped_lines", "is_indent_wrapped_lines");
@@ -7215,6 +7227,10 @@ void TextEdit::_cut_internal(int p_caret) {
 		return;
 	}
 
+	if (!empty_selection_clipboard_enabled) {
+		return;
+	}
+
 	// Remove full lines.
 	begin_complex_operation();
 	begin_multicaret_edit();
@@ -7245,6 +7261,10 @@ void TextEdit::_copy_internal(int p_caret) {
 		return;
 	}
 
+	if (!empty_selection_clipboard_enabled) {
+		return;
+	}
+
 	// Copy full lines.
 	StringBuilder clipboard;
 	Vector<Point2i> line_ranges;

scene/gui/text_edit.h

@@ -319,6 +319,7 @@ private:
 	bool shortcut_keys_enabled = true;
 	bool virtual_keyboard_enabled = true;
 	bool middle_mouse_paste_enabled = true;
+	bool empty_selection_clipboard_enabled = true;
 
 	// Overridable actions.
 	String cut_copy_line = "";
@@ -770,6 +771,9 @@ public:
 	void set_middle_mouse_paste_enabled(bool p_enabled);
 	bool is_middle_mouse_paste_enabled() const;
 
+	void set_empty_selection_clipboard_enabled(bool p_enabled);
+	bool is_empty_selection_clipboard_enabled() const;
+
 	// Text manipulation
 	void clear();
 

tests/scene/test_code_edit.h

@@ -4779,6 +4779,31 @@ TEST_CASE("[SceneTree][CodeEdit] text manipulation") {
 		CHECK(code_edit->get_caret_column(3) == 0);
 	}
 
+	SUBCASE("[SceneTree][CodeEdit] cut when empty selection clipboard disabled") {
+		DisplayServerMock *DS = (DisplayServerMock *)(DisplayServer::get_singleton());
+		code_edit->set_empty_selection_clipboard_enabled(false);
+		DS->clipboard_set("");
+
+		code_edit->set_text("this is\nsome\n");
+		code_edit->set_caret_line(0);
+		code_edit->set_caret_column(6);
+		MessageQueue::get_singleton()->flush();
+		SIGNAL_DISCARD("text_set");
+		SIGNAL_DISCARD("text_changed");
+		SIGNAL_DISCARD("lines_edited_from");
+		SIGNAL_DISCARD("caret_changed");
+
+		code_edit->cut();
+		MessageQueue::get_singleton()->flush();
+		CHECK(DS->clipboard_get() == "");
+		CHECK(code_edit->get_text() == "this is\nsome\n");
+		CHECK(code_edit->get_caret_line() == 0);
+		CHECK(code_edit->get_caret_column() == 6);
+		SIGNAL_CHECK_FALSE("caret_changed");
+		SIGNAL_CHECK_FALSE("text_changed");
+		SIGNAL_CHECK_FALSE("lines_edited_from");
+	}
+
 	SUBCASE("[SceneTree][CodeEdit] new line") {
 		// Add a new line.
 		code_edit->set_text("test new line");

tests/scene/test_text_edit.h

@@ -3585,6 +3585,54 @@ TEST_CASE("[SceneTree][TextEdit] text entry") {
 			SIGNAL_CHECK_FALSE("lines_edited_from");
 		}
 
+		SUBCASE("[TextEdit] cut when empty selection clipboard disabled") {
+			text_edit->set_empty_selection_clipboard_enabled(false);
+			DS->clipboard_set("");
+
+			text_edit->set_text("this is\nsome\n");
+			text_edit->set_caret_line(0);
+			text_edit->set_caret_column(6);
+			MessageQueue::get_singleton()->flush();
+			SIGNAL_DISCARD("text_set");
+			SIGNAL_DISCARD("text_changed");
+			SIGNAL_DISCARD("lines_edited_from");
+			SIGNAL_DISCARD("caret_changed");
+
+			text_edit->cut();
+			MessageQueue::get_singleton()->flush();
+			CHECK(DS->clipboard_get() == "");
+			CHECK(text_edit->get_text() == "this is\nsome\n");
+			CHECK(text_edit->get_caret_line() == 0);
+			CHECK(text_edit->get_caret_column() == 6);
+			SIGNAL_CHECK_FALSE("caret_changed");
+			SIGNAL_CHECK_FALSE("text_changed");
+			SIGNAL_CHECK_FALSE("lines_edited_from");
+		}
+
+		SUBCASE("[TextEdit] copy when empty selection clipboard disabled") {
+			text_edit->set_empty_selection_clipboard_enabled(false);
+			DS->clipboard_set("");
+
+			text_edit->set_text("this is\nsome\n");
+			text_edit->set_caret_line(0);
+			text_edit->set_caret_column(6);
+			MessageQueue::get_singleton()->flush();
+			SIGNAL_DISCARD("text_set");
+			SIGNAL_DISCARD("text_changed");
+			SIGNAL_DISCARD("lines_edited_from");
+			SIGNAL_DISCARD("caret_changed");
+
+			text_edit->copy();
+			MessageQueue::get_singleton()->flush();
+			CHECK(DS->clipboard_get() == "");
+			CHECK(text_edit->get_text() == "this is\nsome\n");
+			CHECK(text_edit->get_caret_line() == 0);
+			CHECK(text_edit->get_caret_column() == 6);
+			SIGNAL_CHECK_FALSE("caret_changed");
+			SIGNAL_CHECK_FALSE("text_changed");
+			SIGNAL_CHECK_FALSE("lines_edited_from");
+		}
+
 		SIGNAL_UNWATCH(text_edit, "text_set");
 		SIGNAL_UNWATCH(text_edit, "text_changed");
 		SIGNAL_UNWATCH(text_edit, "lines_edited_from");