-
-
Notifications
You must be signed in to change notification settings - Fork 1.4k
/
main.rs
150 lines (136 loc) · 4.84 KB
/
main.rs
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
143
144
145
146
147
148
149
150
extern crate base64;
use std::collections::HashMap;
use base64::engine::general_purpose::STANDARD;
use base64::Engine;
use gloo::file::callbacks::FileReader;
use gloo::file::File;
use web_sys::{DragEvent, Event, FileList, HtmlInputElement};
use yew::html::TargetCast;
use yew::{html, Callback, Component, Context, Html};
struct FileDetails {
name: String,
file_type: String,
data: Vec<u8>,
}
pub enum Msg {
Loaded(String, String, Vec<u8>),
Files(Vec<File>),
}
pub struct App {
readers: HashMap<String, FileReader>,
files: Vec<FileDetails>,
}
impl Component for App {
type Message = Msg;
type Properties = ();
fn create(_ctx: &Context<Self>) -> Self {
Self {
readers: HashMap::default(),
files: Vec::default(),
}
}
fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool {
match msg {
Msg::Loaded(file_name, file_type, data) => {
self.files.push(FileDetails {
data,
file_type,
name: file_name.clone(),
});
self.readers.remove(&file_name);
true
}
Msg::Files(files) => {
for file in files.into_iter() {
let file_name = file.name();
let file_type = file.raw_mime_type();
let task = {
let link = ctx.link().clone();
let file_name = file_name.clone();
gloo::file::callbacks::read_as_bytes(&file, move |res| {
link.send_message(Msg::Loaded(
file_name,
file_type,
res.expect("failed to read file"),
))
})
};
self.readers.insert(file_name, task);
}
true
}
}
}
fn view(&self, ctx: &Context<Self>) -> Html {
html! {
<div id="wrapper">
<p id="title">{ "Upload Your Files To The Cloud" }</p>
<label for="file-upload">
<div
id="drop-container"
ondrop={ctx.link().callback(|event: DragEvent| {
event.prevent_default();
let files = event.data_transfer().unwrap().files();
Self::upload_files(files)
})}
ondragover={Callback::from(|event: DragEvent| {
event.prevent_default();
})}
ondragenter={Callback::from(|event: DragEvent| {
event.prevent_default();
})}
>
<i class="fa fa-cloud-upload"></i>
<p>{"Drop your images here or click to select"}</p>
</div>
</label>
<input
id="file-upload"
type="file"
accept="image/*,video/*"
multiple={true}
onchange={ctx.link().callback(move |e: Event| {
let input: HtmlInputElement = e.target_unchecked_into();
Self::upload_files(input.files())
})}
/>
<div id="preview-area">
{ for self.files.iter().map(Self::view_file) }
</div>
</div>
}
}
}
impl App {
fn view_file(file: &FileDetails) -> Html {
html! {
<div class="preview-tile">
<p class="preview-name">{ format!("{}", file.name) }</p>
<div class="preview-media">
if file.file_type.contains("image") {
<img src={format!("data:{};base64,{}", file.file_type, STANDARD.encode(&file.data))} />
} else if file.file_type.contains("video") {
<video controls={true}>
<source src={format!("data:{};base64,{}", file.file_type, STANDARD.encode(&file.data))} type={file.file_type.clone()}/>
</video>
}
</div>
</div>
}
}
fn upload_files(files: Option<FileList>) -> Msg {
let mut result = Vec::new();
if let Some(files) = files {
let files = js_sys::try_iter(&files)
.unwrap()
.unwrap()
.map(|v| web_sys::File::from(v.unwrap()))
.map(File::from);
result.extend(files);
}
Msg::Files(result)
}
}
fn main() {
yew::Renderer::<App>::new().render();
}