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
use super::{Control, Header};
use gtk::{
Button,
gio::FileQueryInfoFlags,
glib::{Bytes, Priority},
};
use std::{cell::RefCell, rc::Rc};
pub struct File {
header: Rc<RefCell<Header>>,
buffer: Rc<RefCell<Option<Bytes>>>,
pub button: Button,
}
impl File {
pub fn build(control: &Rc<Control>) -> Self {
use gtk::{
Button, FileDialog, Window,
gio::Cancellable,
prelude::{ButtonExt, FileExt, WidgetExt},
};
// Init components
let header = Rc::new(RefCell::new(Header {
mime: None,
token: None,
}));
let buffer = Rc::new(RefCell::new(None));
let button = Button::builder()
.label("Choose a file..")
.margin_top(4)
.build();
// Init events
button.connect_clicked({
let control = control.clone();
let buffer = buffer.clone();
let header = header.clone();
move |this| {
const CLASS: (&str, &str, &str) = ("error", "warning", "success");
// reset
control.update(None, None);
this.set_sensitive(false);
this.remove_css_class(CLASS.0);
this.remove_css_class(CLASS.1);
this.remove_css_class(CLASS.2);
FileDialog::builder()
.build()
.open(Window::NONE, Cancellable::NONE, {
let control = control.clone();
let header = header.clone();
let buffer = buffer.clone();
let this = this.clone();
move |result| match result {
Ok(file) => match file.path() {
Some(path) => {
this.set_label("Buffering, please wait.."); // @TODO progress
file.load_bytes_async(Cancellable::NONE, {
let file = file.clone();
move |result| match result {
Ok((bytes, _)) => file.query_info_async(
"standard::content-type",
FileQueryInfoFlags::NONE,
Priority::DEFAULT,
Cancellable::NONE,
move |file_info| {
header.borrow_mut().mime = match file_info {
Ok(file_info) => file_info.content_type(),
Err(_) => None,
};
control.update(Some(bytes.len()), None);
buffer.replace(Some(bytes));
this.set_css_classes(&[CLASS.2]);
this.set_label(path.to_str().unwrap());
this.set_sensitive(true);
},
),
Err(e) => {
this.set_css_classes(&[CLASS.0]);
this.set_label(e.message());
this.set_sensitive(true);
}
}
})
}
None => todo!(),
},
Err(e) => {
this.set_css_classes(&[CLASS.1]);
this.set_label(e.message());
this.set_sensitive(true);
}
}
});
}
});
Self {
header,
buffer,
button,
}
}
// Getters
/// Get `Header` copy
/// * borrow, do not take to have form re-send ability
pub fn header(&self) -> Header {
self.header.borrow().clone()
}
/// Get cloned [Bytes](https://docs.gtk.org/glib/struct.Bytes.html)
// * borrow, do not take to have form re-send ability
pub fn bytes(&self) -> Option<Bytes> {
self.buffer.borrow().as_ref().map(|bytes| bytes.clone())
}
/// Get size
pub fn size(&self) -> Option<usize> {
self.buffer.borrow().as_ref().map(|bytes| bytes.len())
}
// Setters
/// Replace current `Header`
/// * return previous object
pub fn set_header(&self, header: Header) -> Header {
self.header.replace(header)
}
}