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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
use net_traits::filemanager_thread::{FileManagerThreadMsg, FileManagerResult, FileManagerThreadError};
use std::cell::RefCell;
use std::collections::HashMap;
use std::fs::File;
use std::io::Read;
use std::path::{Path, PathBuf};
use util::thread::spawn_named;
use uuid::Uuid;
pub struct FileManager {
receiver: IpcReceiver<FileManagerThreadMsg>,
idmap: RefCell<HashMap<Uuid, PathBuf>>,
}
impl FileManager {
pub fn new(recv: IpcReceiver<FileManagerThreadMsg>) -> FileManager {
FileManager {
receiver: recv,
idmap: RefCell::new(HashMap::new()),
}
}
pub fn new_thread() -> IpcSender<FileManagerThreadMsg> {
let (chan, recv) = ipc::channel().unwrap();
spawn_named("FileManager".to_owned(), move || {
FileManager::new(recv).start();
});
chan
}
/// Start the file manager event loop
pub fn start(&mut self) {
loop {
match self.receiver.recv().unwrap() {
FileManagerThreadMsg::SelectFile(sender) => self.select_file(sender),
FileManagerThreadMsg::SelectFiles(sender) => self.select_files(sender),
FileManagerThreadMsg::ReadFile(sender, id) => self.read_file(sender, id),
FileManagerThreadMsg::DeleteFileID(id) => self.delete_fileid(id),
}
}
}
}
impl FileManager {
fn select_file(&mut self, sender: IpcSender<FileManagerResult<(Uuid, PathBuf, u64)>>) {
// TODO: Pull the dialog UI in and get selected
let selected_path = Path::new("");
match self.create_entry(selected_path) {
Some(triple) => {
let _ = sender.send(Ok(triple));
},
None => {
let _ = sender.send(Err(FileManagerThreadError::InvalidSelection));
}
}
}
fn select_files(&mut self, sender: IpcSender<FileManagerResult<Vec<(Uuid, PathBuf, u64)>>>) {
let selected_paths = vec![Path::new("")];
let mut replies = vec![];
for path in selected_paths {
match self.create_entry(path) {
Some(triple) => replies.push(triple),
None => {
let _ = sender.send(Err(FileManagerThreadError::InvalidSelection));
return;
}
}
}
let _ = sender.send(Ok(replies));
}
fn create_entry(&mut self, file_path: &Path) -> Option<(Uuid, PathBuf, u64)> {
match File::open(file_path) {
Ok(handler) => {
let id = Uuid::new_v4();
self.idmap.borrow_mut().insert(id, file_path.to_path_buf());
// Unix Epoch: https://doc.servo.org/std/time/constant.UNIX_EPOCH.html
let epoch = handler.metadata().and_then(|metadata| metadata.modified()).map_err(|_| ())
.and_then(|systime| systime.elapsed().map_err(|_| ()))
.and_then(|elapsed| {
let secs = elapsed.as_secs();
let nsecs = elapsed.subsec_nanos();
let msecs = secs * 1000 + nsecs as u64 / 1000000;
Ok(msecs)
});
let filename = file_path.file_name();
match (epoch, filename) {
(Ok(epoch), Some(filename)) => Some((id, Path::new(filename).to_path_buf(), epoch)),
_ => None
}
},
Err(_) => None
}
}
fn read_file(&mut self, sender: IpcSender<FileManagerResult<Vec<u8>>>, id: Uuid) {
match self.idmap.borrow().get(&id).and_then(|filepath| {
let mut buffer = vec![];
match File::open(&filepath) {
Ok(mut handler) => {
match handler.read_to_end(&mut buffer) {
Ok(_) => Some(buffer),
Err(_) => None,
}
},
Err(_) => None,
}
}) {
Some(buffer) => {
let _ = sender.send(Ok(buffer));
},
None => {
let _ = sender.send(Err(FileManagerThreadError::ReadFileError));
}
};
}
fn delete_fileid(&mut self, id: Uuid) {
self.idmap.borrow_mut().remove(&id);
}
}
|
