Fix ColorPickerButton close popup on mouse click

Fixes #91813

scene/gui/color_picker.cpp

@@ -2071,6 +2071,14 @@ void ColorPickerButton::_modal_closed() {
 void ColorPickerButton::pressed() {
 	_update_picker();
 
+	// Checking if the popup was open before, so we can keep it closed instead of reopening it.
+	// Popups get closed when it's clicked outside of them.
+	if (popup_was_open) {
+		// Reset popup_was_open value.
+		popup_was_open = popup->is_visible();
+		return;
+	}
+
 	Size2 minsize = popup->get_contents_minimum_size();
 	float viewport_height = get_viewport_rect().size.y;
 
@@ -2094,6 +2102,19 @@ void ColorPickerButton::pressed() {
 	}
 }
 
+void ColorPickerButton::gui_input(const Ref<InputEvent> &p_event) {
+	ERR_FAIL_COND(p_event.is_null());
+
+	Ref<InputEventMouseButton> mouse_button = p_event;
+	bool ui_accept = p_event->is_action("ui_accept", true) && !p_event->is_echo();
+	bool mouse_left_pressed = mouse_button.is_valid() && mouse_button->get_button_index() == MouseButton::LEFT && mouse_button->is_pressed();
+	if (mouse_left_pressed || ui_accept) {
+		popup_was_open = popup && popup->is_visible();
+	}
+
+	BaseButton::gui_input(p_event);
+}
+
 void ColorPickerButton::_notification(int p_what) {
 	switch (p_what) {
 		case NOTIFICATION_DRAW: {

scene/gui/color_picker.h

@@ -389,6 +389,7 @@ class ColorPickerButton : public Button {
 	ColorPicker *picker = nullptr;
 	Color color;
 	bool edit_alpha = true;
+	bool popup_was_open = false;
 
 	struct ThemeCache {
 		Ref<StyleBox> normal_style;
@@ -408,6 +409,7 @@ class ColorPickerButton : public Button {
 protected:
 	void _notification(int);
 	static void _bind_methods();
+	virtual void gui_input(const Ref<InputEvent> &p_event) override;
 
 public:
 	void set_pick_color(const Color &p_color);