Trait DragModifiers 

pub trait DragModifiers<V> {
    // Required methods
    fn on_drag<F>(self, action: F) -> Self
       where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync;
    fn on_drag_enter<F>(self, action: F) -> Self
       where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync;
    fn on_drag_leave<F>(self, action: F) -> Self
       where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync;
    fn on_drag_move<F>(self, action: F) -> Self
       where F: 'static + Fn(&mut EventContext<'_>, f32, f32) + Send + Sync;
    fn on_drop<F>(self, action: F) -> Self
       where F: 'static + Fn(&mut EventContext<'_>, DropData) + Send + Sync;
    fn on_drag_view<C, T>(self, content: C) -> Self
       where C: Fn(&mut Context) -> Handle<'_, T> + 'static,
             T: View;
}

Modifiers which add drag-and-drop callbacks to a view.

Required Methods

fn on_drag<F>(self, action: F) -> Self

where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync,

Adds a callback which is performed when the view begins to be dragged.

The callback should call set_drop_data to supply the data that will be delivered to the drop target.

fn on_drag_enter<F>(self, action: F) -> Self

where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync,

Adds a callback which is performed when the cursor enters this view while carrying drag data.

fn on_drag_leave<F>(self, action: F) -> Self

where F: 'static + Fn(&mut EventContext<'_>) + Send + Sync,

Adds a callback which is performed when the cursor leaves this view while carrying drag data.

fn on_drag_move<F>(self, action: F) -> Self

where F: 'static + Fn(&mut EventContext<'_>, f32, f32) + Send + Sync,

Adds a callback which is performed when the cursor moves over this view while carrying drag data.

fn on_drop<F>(self, action: F) -> Self

where F: 'static + Fn(&mut EventContext<'_>, DropData) + Send + Sync,

Adds a callback which is performed when data is dropped on the view during a drag-and-drop operation.

fn on_drag_view<C, T>(self, content: C) -> Self

where C: Fn(&mut Context) -> Handle<'_, T> + 'static, T: View,

Adds a view that is rendered under the mouse cursor while this view is being dragged.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<V> DragModifiers<V> for Handle<'_, V>

where V: View,