ribir_core 0.0.1-alpha.1

Ribir is a framework for building modern native/wasm cross-platform user interface applications.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142

use std::convert::Infallible;

use crate::{
  data_widget::compose_child_as_data_widget, impl_compose_child_with_focus_for_listener,
  impl_listener, impl_query_self_only, prelude::*,
};

#[derive(Debug)]
pub struct KeyboardEvent {
  pub scan_code: ScanCode,
  pub key: VirtualKeyCode,
  pub common: EventCommon,
}

#[derive(Declare)]
pub struct KeyDownListener {
  #[declare(builtin, default, convert=custom)]
  on_key_down: MutRefItemSubject<'static, KeyboardEvent, Infallible>,
}

#[derive(Declare)]
pub struct KeyUpListener {
  #[declare(
    builtin,
    convert=custom
  )]
  on_key_up: MutRefItemSubject<'static, KeyboardEvent, Infallible>,
}

impl_listener!(
  KeyDownListener,
  KeyDownListenerDeclarer,
  on_key_down,
  KeyboardEvent,
  key_down_stream
);
impl_compose_child_with_focus_for_listener!(KeyDownListener);

impl_listener!(
  KeyUpListener,
  KeyUpListenerDeclarer,
  on_key_up,
  KeyboardEvent,
  key_up_stream
);

impl_compose_child_with_focus_for_listener!(KeyUpListener);

impl std::borrow::Borrow<EventCommon> for KeyboardEvent {
  #[inline]
  fn borrow(&self) -> &EventCommon { &self.common }
}

impl std::borrow::BorrowMut<EventCommon> for KeyboardEvent {
  #[inline]
  fn borrow_mut(&mut self) -> &mut EventCommon { &mut self.common }
}

impl std::ops::Deref for KeyboardEvent {
  type Target = EventCommon;

  #[inline]
  fn deref(&self) -> &Self::Target { &self.common }
}

impl std::ops::DerefMut for KeyboardEvent {
  #[inline]
  fn deref_mut(&mut self) -> &mut Self::Target { &mut self.common }
}

#[cfg(test)]
mod tests {
  use super::*;
  use crate::test_helper::*;
  use std::{cell::RefCell, rc::Rc};
  use winit::event::{DeviceId, ElementState, KeyboardInput, WindowEvent};

  fn new_key_event(key: VirtualKeyCode, state: ElementState) -> WindowEvent<'static> {
    #[allow(deprecated)]
    WindowEvent::KeyboardInput {
      device_id: unsafe { DeviceId::dummy() },
      input: KeyboardInput {
        scancode: 0,
        virtual_keycode: Some(key),
        state,
        modifiers: ModifiersState::default(),
      },
      is_synthetic: false,
    }
  }

  #[test]
  fn smoke() {
    #[derive(Default)]
    struct Keys(Rc<RefCell<Vec<String>>>);

    impl Compose for Keys {
      fn compose(this: State<Self>) -> Widget {
        widget! {
          states { this: this.into_writable() }
          MockBox {
            size: Size::zero(),
            auto_focus: true,
            on_key_down: move |key| {
              this.0
                .borrow_mut()
                .push(format!("key down {:?}", key.key));
            },
            on_key_up: move |key| {
              this.0.borrow_mut().push(format!("key up {:?}", key.key));
            }
          }
        }
      }
    }

    let w = Keys::default();
    let keys = w.0.clone();

    let mut wnd = TestWindow::new(w);
    wnd.draw_frame();

    #[allow(deprecated)]
    wnd.processes_native_event(new_key_event(VirtualKeyCode::Key0, ElementState::Pressed));
    #[allow(deprecated)]
    wnd.processes_native_event(new_key_event(VirtualKeyCode::Key0, ElementState::Released));
    #[allow(deprecated)]
    wnd.processes_native_event(new_key_event(VirtualKeyCode::Key1, ElementState::Pressed));
    #[allow(deprecated)]
    wnd.processes_native_event(new_key_event(VirtualKeyCode::Key1, ElementState::Released));

    assert_eq!(
      &*keys.borrow(),
      &[
        "key down Key0",
        "key up Key0",
        "key down Key1",
        "key up Key1"
      ]
    );
  }
}