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use {
std::sync::Arc,
std::sync::Mutex,
crate::{
makepad_live_id::*,
makepad_math::*,
event::{
KeyModifiers,
finger::{HitOptions, Margin},
event::{Event, DragHit}
},
cx::Cx,
area::Area,
},
};
#[derive(Clone, Debug)]
pub struct DragEvent {
pub modifiers: KeyModifiers,
pub handled: Arc<Mutex<bool>>,
pub abs: DVec2,
pub items: Arc<Vec<DragItem >>,
pub response: Arc<Mutex<DragResponse >>,
}
#[derive(Clone, Debug)]
pub struct DropEvent {
pub modifiers: KeyModifiers,
pub handled: Arc<Mutex<bool>>,
pub abs: DVec2,
pub items: Arc<Vec<DragItem >>,
}
#[derive(Clone, Debug)]
pub struct DragHitEvent {
pub modifiers: KeyModifiers,
pub abs: DVec2,
pub rect: Rect,
pub state: DragState,
pub items: Arc<Vec<DragItem >>,
pub response: Arc<Mutex<DragResponse >>,
}
#[derive(Clone, Debug)]
pub struct DropHitEvent {
pub modifiers: KeyModifiers,
pub abs: DVec2,
pub rect: Rect,
pub items: Arc<Vec<DragItem >>,
}
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum DragState {
In,
Over,
Out,
}
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum DragResponse {
None,
Copy,
Link,
Move,
}
#[derive(Clone, Debug, PartialEq)]
pub enum DragItem {
FilePath {path: String, internal_id: Option<LiveId>},
String {value: String, internal_id: Option<LiveId>}
}
/*
pub enum HitTouch {
Single,
Multi
}*/
// Status
#[derive(Default)]
pub struct CxDragDrop {
drag_area: Area,
next_drag_area: Area,
}
impl CxDragDrop {
#[allow(dead_code)]
pub (crate) fn cycle_drag(&mut self) {
self.drag_area = self.next_drag_area;
self.next_drag_area = Area::Empty;
}
pub (crate) fn update_area(&mut self, old_area: Area, new_area: Area) {
if self.drag_area == old_area {
self.drag_area = new_area;
}
}
}
impl Event {
pub fn drag_hits(&self, cx: &mut Cx, area: Area) -> DragHit {
self.drag_hits_with_options(cx, area, HitOptions::default())
}
pub fn drag_hits_with_options(&self, cx: &mut Cx, area: Area, options: HitOptions) -> DragHit {
match self {
Event::Drag(event) => {
let rect = area.clipped_rect(cx);
if area == cx.drag_drop.drag_area {
if !*event.handled.lock().unwrap() && Margin::rect_contains_with_margin(event.abs, &rect, &options.margin) {
//log!("drag_hist_with_options: Drag, in drag area, event handled and rect ({:?}) contains ({},{}) with margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
cx.drag_drop.next_drag_area = area;
*event.handled.lock().unwrap() = true;
DragHit::Drag(DragHitEvent {
rect,
modifiers: event.modifiers,
abs: event.abs,
items: event.items.clone(),
state: DragState::Over,
response: event.response.clone()
})
} else {
//log!("drag_hist_with_options: Drag, in drag area, event not handled or rect ({:?}) doesn't contain ({},{}) with margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
DragHit::Drag(DragHitEvent {
rect,
modifiers: event.modifiers,
state: DragState::Out,
items: event.items.clone(),
abs: event.abs,
response: event.response.clone()
})
}
} else {
if !*event.handled.lock().unwrap() && Margin::rect_contains_with_margin(event.abs, &rect, &options.margin) {
//log!("drag_hits_with_options: Drag, not in drag_area, event not handled and rect ({:?}) contains ({},{}) with margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
cx.drag_drop.next_drag_area = area;
*event.handled.lock().unwrap() = true;
DragHit::Drag(DragHitEvent {
modifiers: event.modifiers,
rect,
state: DragState::In,
items: event.items.clone(),
abs: event.abs,
response: event.response.clone()
})
} else {
//log!("drag_hits_with_options: Drag, not in drag_area, event handled or rect ({:?}) doesn't contain ({},{}) with margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
DragHit::NoHit
}
}
}
Event::Drop(event) => {
let rect = area.clipped_rect(cx);
if !*event.handled.lock().unwrap() && Margin::rect_contains_with_margin(event.abs, &rect, &options.margin) {
//log!("drag_hits_with_options: Drop, event not handled and rect {:?} contains ({},{}) in margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
cx.drag_drop.next_drag_area = Area::default();
*event.handled.lock().unwrap() = true;
DragHit::Drop(DropHitEvent {
modifiers: event.modifiers,
rect,
abs: event.abs,
items: event.items.clone()
})
} else {
//log!("drag_hits_with_options: Drop, event handled or rect {:?} doesn't contain ({},{}) in margin {:?}",rect,event.abs.x,event.abs.y,options.margin);
DragHit::NoHit
}
}
_ => DragHit::NoHit,
}
}
}