winio_ui_winui/widgets/
combo_box.rs

1use std::rc::Rc;
2
3use inherit_methods_macro::inherit_methods;
4use send_wrapper::SendWrapper;
5use windows::{
6    Foundation::{IReference, TypedEventHandler},
7    core::{HSTRING, IInspectable, Interface},
8};
9use winio_callback::Callback;
10use winio_handle::AsContainer;
11use winio_primitive::{Point, Size};
12use winui3::Microsoft::UI::Xaml::Controls::{self as MUXC, SelectionChangedEventHandler};
13
14use crate::{GlobalRuntime, Result, Widget, widgets::ToIReference};
15
16#[derive(Debug)]
17pub struct ComboBox {
18    on_select: SendWrapper<Rc<Callback<()>>>,
19    on_edit: SendWrapper<Rc<Callback<()>>>,
20    handle: Widget,
21    combo_box: MUXC::ComboBox,
22}
23
24#[inherit_methods(from = "self.handle")]
25impl ComboBox {
26    pub fn new(parent: impl AsContainer) -> Result<Self> {
27        let combo_box = MUXC::ComboBox::new()?;
28        let on_select = SendWrapper::new(Rc::new(Callback::new()));
29        {
30            let on_select = on_select.clone();
31            combo_box.SelectionChanged(&SelectionChangedEventHandler::new(move |_, _| {
32                on_select.signal::<GlobalRuntime>(());
33                Ok(())
34            }))?;
35        }
36        let on_edit = SendWrapper::new(Rc::new(Callback::new()));
37        {
38            let on_edit = on_edit.clone();
39            combo_box.TextSubmitted(&TypedEventHandler::new(move |_, _| {
40                on_edit.signal::<GlobalRuntime>(());
41                Ok(())
42            }))?;
43        }
44        Ok(Self {
45            on_select,
46            on_edit,
47            handle: Widget::new(parent, combo_box.cast()?)?,
48            combo_box,
49        })
50    }
51
52    pub fn is_visible(&self) -> Result<bool>;
53
54    pub fn set_visible(&mut self, v: bool) -> Result<()>;
55
56    pub fn is_enabled(&self) -> Result<bool>;
57
58    pub fn set_enabled(&mut self, v: bool) -> Result<()>;
59
60    pub fn preferred_size(&self) -> Result<Size>;
61
62    pub fn loc(&self) -> Result<Point>;
63
64    pub fn set_loc(&mut self, p: Point) -> Result<()>;
65
66    pub fn size(&self) -> Result<Size>;
67
68    pub fn set_size(&mut self, v: Size) -> Result<()>;
69
70    pub fn tooltip(&self) -> Result<String>;
71
72    pub fn set_tooltip(&mut self, s: impl AsRef<str>) -> Result<()>;
73
74    pub fn text(&self) -> Result<String> {
75        Ok(self.combo_box.Text()?.to_string_lossy())
76    }
77
78    pub fn set_text(&mut self, s: impl AsRef<str>) -> Result<()> {
79        self.combo_box.SetText(&HSTRING::from(s.as_ref()))?;
80        Ok(())
81    }
82
83    pub fn selection(&self) -> Result<Option<usize>> {
84        let i = self.combo_box.SelectedIndex()?;
85        Ok(if i < 0 { None } else { Some(i as usize) })
86    }
87
88    pub fn set_selection(&mut self, i: usize) -> Result<()> {
89        self.combo_box.SetSelectedIndex(i as _)?;
90        Ok(())
91    }
92
93    pub fn is_editable(&self) -> Result<bool> {
94        self.combo_box.IsEditable()
95    }
96
97    pub fn set_editable(&self, v: bool) -> Result<()> {
98        self.combo_box.SetIsEditable(v)?;
99        Ok(())
100    }
101
102    pub async fn wait_select(&self) {
103        self.on_select.wait().await;
104    }
105
106    pub async fn wait_change(&self) {
107        self.on_edit.wait().await;
108    }
109
110    pub fn insert(&mut self, i: usize, s: impl AsRef<str>) -> Result<()> {
111        let item = MUXC::ComboBoxItem::new()?;
112        item.SetContent(&HSTRING::from(s.as_ref()).to_reference()?)?;
113        self.combo_box
114            .Items()?
115            .InsertAt(i as _, &item.cast::<IInspectable>()?)?;
116        if (!self.is_editable()?) && self.len()? == 1 {
117            self.set_selection(0)?;
118        }
119        Ok(())
120    }
121
122    pub fn remove(&mut self, i: usize) -> Result<()> {
123        let remove_current = self.selection()? == Some(i);
124        self.combo_box.Items()?.RemoveAt(i as _)?;
125        let len = self.len()?;
126        if remove_current && (!self.is_editable()?) {
127            if len > 0 {
128                self.set_selection(i.min(len - 1))?;
129            } else {
130                self.combo_box.SetSelectedIndex(-1)?;
131            }
132        }
133        Ok(())
134    }
135
136    pub fn get(&self, i: usize) -> Result<String> {
137        let item = self.combo_box.Items()?.GetAt(i as _)?;
138        Ok(item
139            .cast::<MUXC::ComboBoxItem>()?
140            .Content()?
141            .cast::<IReference<HSTRING>>()?
142            .Value()?
143            .to_string_lossy())
144    }
145
146    pub fn set(&mut self, i: usize, s: impl AsRef<str>) -> Result<()> {
147        let item = self.combo_box.Items()?.GetAt(i as _)?;
148        item.cast::<MUXC::ComboBoxItem>()?
149            .SetContent(&HSTRING::from(s.as_ref()).to_reference()?)?;
150        Ok(())
151    }
152
153    pub fn len(&self) -> Result<usize> {
154        Ok(self.combo_box.Items()?.Size()? as usize)
155    }
156
157    pub fn is_empty(&self) -> Result<bool> {
158        Ok(self.len()? == 0)
159    }
160
161    pub fn clear(&mut self) -> Result<()> {
162        self.combo_box.Items()?.Clear()?;
163        Ok(())
164    }
165}
166
167winio_handle::impl_as_widget!(ComboBox, handle);
winio_ui_winui/widgets/combo_box.rs

winio_ui_winui/widgets/
combo_box.rs
