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extends ScrollContainer
class_name TouchVerticalContainer
const POINTER_VELOCITY_DECAYING_FACTOR: float = 2.5
var is_pointer_dragging := false
var pointer_drag_velocity := 0.0
var exclude_controls := []
func _ready():
for it in get_node("controls").get_children():
it = it as Control
if exclude_controls.has(it.name):
continue
var sensor = PointerInputSensor.new()
it.add_child(sensor)
sensor.name = "sensor"
sensor.anchor_right = 1.0
sensor.anchor_bottom = 1.0
sensor.connect("on_press", self, "pointer_input_on_press_handler")
sensor.connect("on_drag", self, "pointer_input_on_drag_handler")
sensor.connect("on_end_drag", self, "pointer_input_on_end_drag_handler")
sensor.connect("on_click", self, "pointer_input_on_click_handler")
# it.connect("focus_entered", sensor, "set_visible", [false])
# it.connect("focus_exited", sensor, "set_visible", [true])
func _process(delta: float):
# Apply drag movement inertia.
if is_pointer_dragging == false && abs(pointer_drag_velocity) > 0.5:
pointer_drag_velocity *= clamp((1.0 - POINTER_VELOCITY_DECAYING_FACTOR * delta), 0.0, 1.0)
self.scroll_vertical -= pointer_drag_velocity * delta
func pointer_input_on_press_handler(pointer: PointerInputSensor.PointerInputData):
is_pointer_dragging = true
grab_focus()
func pointer_input_on_drag_handler(pointer: PointerInputSensor.PointerInputData):
is_pointer_dragging = true
pointer_drag_velocity = pointer.velocity.y
self.scroll_vertical -= pointer.relative_position.y
func pointer_input_on_end_drag_handler(pointer: PointerInputSensor.PointerInputData):
is_pointer_dragging = false
func pointer_input_on_click_handler(pointer: PointerInputSensor.PointerInputData):
propagate_click(pointer.target.get_parent(), pointer)
# @DAM Maybe replace this with a stack of next items to process approach.
func propagate_click(control: Control, pointer: PointerInputSensor.PointerInputData) -> bool:
if control is PointerInputSensor || control.mouse_filter == MOUSE_FILTER_IGNORE || control.visible == false:
return false
var click_processed := false
if control.get_global_rect().has_point(pointer.current_position):
var children = control.get_children()
children.invert() # @DAM Use inverted index for loop to avoid invert() operation.
for child in children:
if child is Control:
click_processed = click_processed || propagate_click(child, pointer)
if click_processed == true:
break
if click_processed == false:
if control is CheckBox || control is CheckButton:
control.pressed = !control.pressed
control.grab_focus()
control.emit_signal("button_down")
control.emit_signal("pressed")
control.emit_signal("button_up")
click_processed = true
pointer.target.visible = false
control.connect("focus_exited", pointer.target, "set_visible", [true])
return click_processed
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