Struct TouchHandler 

pub struct TouchHandler {
    webview_id: WebViewId,
    pub current_sequence_id: TouchSequenceId,
    touch_sequence_map: FxHashMap<TouchSequenceId, TouchSequenceInfo>,
    pub(crate) pending_touch_input_events: RefCell<FxHashMap<InputEventId, PendingTouchInputEvent>>,
    observing_frames_for_fling: Cell<bool>,
}

Fields

webview_id: WebViewId

The WebViewId of the WebView this TouchHandler is associated with.

current_sequence_id: TouchSequenceId

touch_sequence_map: FxHashMap<TouchSequenceId, TouchSequenceInfo>

pending_touch_input_events: RefCell<FxHashMap<InputEventId, PendingTouchInputEvent>>

A set of InputEventIds for touch events that have been sent to the Constellation and have not been handled yet.

observing_frames_for_fling: Cell<bool>

Whether or not the FlingRefreshDriverObserver is currently observing frames for fling.

Implementations

impl TouchHandler

pub(crate) fn new(webview_id: WebViewId) -> Self

pub(crate) fn set_handling_touch_move_for_touch_id( &mut self, sequence_id: TouchSequenceId, touch_id: TouchId, flag: TouchIdMoveTracking, )

pub(crate) fn is_handling_touch_move_for_touch_id( &self, sequence_id: TouchSequenceId, touch_id: TouchId, ) -> bool

pub(crate) fn prevent_click(&mut self, sequence_id: TouchSequenceId)

pub(crate) fn prevent_move(&mut self, sequence_id: TouchSequenceId)

pub(crate) fn move_allowed(&self, sequence_id: TouchSequenceId) -> bool

Returns true if default move actions are allowed, false if prevented or the result is still pending.,

pub(crate) fn take_pending_touch_move_actions( &mut self, sequence_id: TouchSequenceId, ) -> Vec<ScrollZoomEvent>

pub(crate) fn remove_pending_touch_move_actions( &mut self, sequence_id: TouchSequenceId, )

pub(crate) fn try_remove_touch_sequence(&mut self, sequence_id: TouchSequenceId)

pub(crate) fn remove_touch_sequence(&mut self, sequence_id: TouchSequenceId)

fn get_current_touch_sequence_mut(&mut self) -> &mut TouchSequenceInfo

fn try_get_current_touch_sequence(&self) -> Option<&TouchSequenceInfo>

fn try_get_current_touch_sequence_mut( &mut self, ) -> Option<&mut TouchSequenceInfo>

fn get_touch_sequence(&self, sequence_id: TouchSequenceId) -> &TouchSequenceInfo

pub(crate) fn get_touch_sequence_mut( &mut self, sequence_id: TouchSequenceId, ) -> Option<&mut TouchSequenceInfo>

pub(crate) fn on_touch_down( &mut self, touch_id: TouchId, point: Point2D<f32, DevicePixel>, )

pub(crate) fn notify_new_frame_start(&mut self) -> Option<FlingAction>

pub(crate) fn stop_fling_if_needed(&mut self)

pub(crate) fn on_touch_move( &mut self, touch_id: TouchId, point: Point2D<f32, DevicePixel>, scale: f32, ) -> Option<ScrollZoomEvent>

pub(crate) fn on_touch_up( &mut self, touch_id: TouchId, point: Point2D<f32, DevicePixel>, )

pub(crate) fn on_touch_cancel( &mut self, touch_id: TouchId, _point: Point2D<f32, DevicePixel>, )

pub(crate) fn get_hit_test_result_cache_value( &self, ) -> Option<PaintHitTestResult>

pub(crate) fn set_hit_test_result_cache_value( &mut self, value: PaintHitTestResult, device_pixels_per_page: Scale<f32, CSSPixel, DevicePixel>, )

pub(crate) fn add_pending_touch_input_event( &self, id: InputEventId, touch_id: TouchId, event_type: TouchEventType, )

pub(crate) fn take_pending_touch_input_event( &self, id: InputEventId, ) -> Option<PendingTouchInputEvent>

pub(crate) fn add_touch_move_refresh_observer_if_necessary( &self, refresh_driver: Rc<BaseRefreshDriver>, repaint_reason: &Cell<RepaintReason>, )