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
|
use crate::{Background, Bus, Element, Length, Widget};
use dodrio::bumpalo;
/// A generic widget that produces a message when clicked.
pub struct Button<'a, Message> {
content: Element<'a, Message>,
on_press: Option<Message>,
width: Length,
min_width: u32,
padding: u16,
background: Option<Background>,
border_radius: u16,
}
impl<'a, Message> Button<'a, Message> {
/// Creates a new [`Button`] with some local [`State`] and the given
/// content.
///
/// [`Button`]: struct.Button.html
/// [`State`]: struct.State.html
pub fn new<E>(_state: &'a mut State, content: E) -> Self
where
E: Into<Element<'a, Message>>,
{
Button {
content: content.into(),
on_press: None,
width: Length::Shrink,
min_width: 0,
padding: 0,
background: None,
border_radius: 0,
}
}
/// Sets the width of the [`Button`].
///
/// [`Button`]: struct.Button.html
pub fn width(mut self, width: Length) -> Self {
self.width = width;
self
}
/// Sets the minimum width of the [`Button`].
///
/// [`Button`]: struct.Button.html
pub fn min_width(mut self, min_width: u32) -> Self {
self.min_width = min_width;
self
}
/// Sets the padding of the [`Button`].
///
/// [`Button`]: struct.Button.html
pub fn padding(mut self, padding: u16) -> Self {
self.padding = padding;
self
}
/// Sets the [`Background`] of the [`Button`].
///
/// [`Button`]: struct.Button.html
/// [`Background`]: ../../struct.Background.html
pub fn background(mut self, background: Background) -> Self {
self.background = Some(background);
self
}
/// Sets the border radius of the [`Button`].
///
/// [`Button`]: struct.Button.html
pub fn border_radius(mut self, border_radius: u16) -> Self {
self.border_radius = border_radius;
self
}
/// Sets the message that will be produced when the [`Button`] is pressed.
///
/// [`Button`]: struct.Button.html
pub fn on_press(mut self, msg: Message) -> Self {
self.on_press = Some(msg);
self
}
}
/// The local state of a [`Button`].
///
/// [`Button`]: struct.Button.html
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub struct State;
impl State {
/// Creates a new [`State`].
///
/// [`State`]: struct.State.html
pub fn new() -> State {
State::default()
}
}
impl<'a, Message> Widget<Message> for Button<'a, Message>
where
Message: 'static + Copy,
{
fn node<'b>(
&self,
bump: &'b bumpalo::Bump,
bus: &Bus<Message>,
) -> dodrio::Node<'b> {
use dodrio::builder::*;
let mut node =
button(bump).children(vec![self.content.node(bump, bus)]);
if let Some(on_press) = self.on_press {
let event_bus = bus.clone();
node = node.on("click", move |root, vdom, _event| {
event_bus.publish(on_press, root);
vdom.schedule_render();
});
}
// TODO: Complete styling
node.finish()
}
}
impl<'a, Message> From<Button<'a, Message>> for Element<'a, Message>
where
Message: 'static + Copy,
{
fn from(button: Button<'a, Message>) -> Element<'a, Message> {
Element::new(button)
}
}
|
