Fix ColorPicker deferred mode not working for sliders.

scene/gui/color_picker.cpp

@@ -341,7 +341,11 @@ bool ColorPicker::is_editing_alpha() const {
 	return edit_alpha;
 }
 
-void ColorPicker::_value_changed(double) {
+void ColorPicker::_slider_drag_started() {
+	currently_dragging = true;
+}
+
+void ColorPicker::_slider_value_changed() {
 	if (updating) {
 		return;
 	}
@@ -357,7 +361,16 @@ void ColorPicker::_value_changed(double) {
 	}
 
 	_set_pick_color(color, false);
-	emit_signal(SNAME("color_changed"), color);
+	if (!deferred_mode_enabled || !currently_dragging) {
+		emit_signal(SNAME("color_changed"), color);
+	}
+}
+
+void ColorPicker::_slider_drag_ended() {
+	currently_dragging = false;
+	if (deferred_mode_enabled) {
+		emit_signal(SNAME("color_changed"), color);
+	}
 }
 
 void ColorPicker::add_mode(ColorMode *p_mode) {
@@ -388,7 +401,9 @@ void ColorPicker::create_slider(GridContainer *gc, int idx) {
 
 	slider->set_h_size_flags(SIZE_EXPAND_FILL);
 
-	slider->connect("value_changed", callable_mp(this, &ColorPicker::_value_changed));
+	slider->connect("drag_started", callable_mp(this, &ColorPicker::_slider_drag_started));
+	slider->connect("value_changed", callable_mp(this, &ColorPicker::_slider_value_changed).unbind(1));
+	slider->connect("drag_ended", callable_mp(this, &ColorPicker::_slider_drag_ended).unbind(1));
 	slider->connect("draw", callable_mp(this, &ColorPicker::_slider_draw).bind(idx));
 	slider->connect("gui_input", callable_mp(this, &ColorPicker::_slider_or_spin_input));
 
@@ -1242,7 +1257,6 @@ void ColorPicker::_uv_input(const Ref<InputEvent> &p_event, Control *c) {
 			_copy_hsv_to_color();
 			last_color = color;
 			set_pick_color(color);
-			_update_color();
 
 			if (!deferred_mode_enabled) {
 				emit_signal(SNAME("color_changed"), color);
@@ -1293,7 +1307,6 @@ void ColorPicker::_uv_input(const Ref<InputEvent> &p_event, Control *c) {
 		_copy_hsv_to_color();
 		last_color = color;
 		set_pick_color(color);
-		_update_color();
 
 		if (!deferred_mode_enabled) {
 			emit_signal(SNAME("color_changed"), color);
@@ -1321,7 +1334,6 @@ void ColorPicker::_w_input(const Ref<InputEvent> &p_event) {
 		_copy_hsv_to_color();
 		last_color = color;
 		set_pick_color(color);
-		_update_color();
 
 		if (!bev->is_pressed() && bev->get_button_index() == MouseButton::LEFT) {
 			add_recent_preset(color);
@@ -1347,7 +1359,6 @@ void ColorPicker::_w_input(const Ref<InputEvent> &p_event) {
 		_copy_hsv_to_color();
 		last_color = color;
 		set_pick_color(color);
-		_update_color();
 
 		if (!deferred_mode_enabled) {
 			emit_signal(SNAME("color_changed"), color);

scene/gui/color_picker.h

@@ -207,6 +207,7 @@ private:
 	bool hex_visible = true;
 	bool line_edit_mouse_release = false;
 	bool text_changed = false;
+	bool currently_dragging = false;
 
 	float h = 0.0;
 	float s = 0.0;
@@ -254,7 +255,9 @@ private:
 	void create_slider(GridContainer *gc, int idx);
 	void _reset_sliders_theme();
 	void _html_submitted(const String &p_html);
-	void _value_changed(double);
+	void _slider_drag_started();
+	void _slider_value_changed();
+	void _slider_drag_ended();
 	void _update_controls();
 	void _update_color(bool p_update_sliders = true);
 	void _update_text_value();

scene/gui/range.h

@@ -64,6 +64,7 @@ class Range : public Control {
 
 protected:
 	virtual void _value_changed(double p_value);
+	void _notify_shared_value_changed() { shared->emit_value_changed(); };
 
 	static void _bind_methods();
 

scene/gui/slider.cpp

@@ -68,15 +68,18 @@ void Slider::gui_input(const Ref<InputEvent> &p_event) {
 				double grab_width = (double)grabber->get_width();
 				double grab_height = (double)grabber->get_height();
 				double max = orientation == VERTICAL ? get_size().height - grab_height : get_size().width - grab_width;
+				set_block_signals(true);
 				if (orientation == VERTICAL) {
 					set_as_ratio(1 - (((double)grab.pos - (grab_height / 2.0)) / max));
 				} else {
 					set_as_ratio(((double)grab.pos - (grab_width / 2.0)) / max);
 				}
+				set_block_signals(false);
 				grab.active = true;
 				grab.uvalue = get_as_ratio();
 
 				emit_signal(SNAME("drag_started"));
+				_notify_shared_value_changed();
 			} else {
 				grab.active = false;