jellyflow_runtime/runtime/selection/
pointer_claim.rs

1use jellyflow_core::core::CanvasPoint;
2
3use super::activation::{SelectionDragActivationInput, selection_drag_threshold_met};
4
5/// Normalized pointer state for deciding whether selection should claim a drag gesture first.
6#[derive(Debug, Clone, Copy, PartialEq)]
7pub struct SelectionPointerClaimInput {
8    pub screen_delta: CanvasPoint,
9    pub pane_click_distance: f32,
10    pub selection_key_pressed: bool,
11    pub user_selection_active: bool,
12}
13
14impl SelectionPointerClaimInput {
15    pub fn new(
16        screen_delta: CanvasPoint,
17        pane_click_distance: f32,
18        selection_key_pressed: bool,
19        user_selection_active: bool,
20    ) -> Self {
21        Self {
22            screen_delta,
23            pane_click_distance,
24            selection_key_pressed,
25            user_selection_active,
26        }
27    }
28}
29
30/// Selection's current ownership status over a normalized pointer drag.
31#[derive(Debug, Clone, Copy, PartialEq, Eq)]
32pub enum SelectionPointerClaim {
33    Unclaimed,
34    SelectionMayClaimDrag,
35    SelectionOwnsDrag,
36}
37
38pub fn resolve_selection_pointer_claim(input: SelectionPointerClaimInput) -> SelectionPointerClaim {
39    if input.user_selection_active {
40        return SelectionPointerClaim::SelectionOwnsDrag;
41    }
42
43    if input.selection_key_pressed
44        && selection_drag_threshold_met(SelectionDragActivationInput::new(
45            input.screen_delta,
46            input.pane_click_distance,
47            true,
48        ))
49    {
50        return SelectionPointerClaim::SelectionMayClaimDrag;
51    }
52
53    SelectionPointerClaim::Unclaimed
54}
jellyflow_runtime/runtime/selection/pointer_claim.rs

jellyflow_runtime/runtime/selection/
pointer_claim.rs
