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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// Copyright (C) 2019 Robin Krahl <robin.krahl@ireas.org>
// SPDX-License-Identifier: MIT
use std::process;
use crate::{Choice, Error, Input, Message, Password, Question, Result};
/// The `zenity` backend.
///
/// This backend uses the external `zenity` program to display GTK+ dialog boxes.
#[derive(Debug, Default)]
pub struct Zenity {
icon: Option<String>,
width: Option<String>,
height: Option<String>,
timeout: Option<String>,
}
impl Zenity {
/// Creates a new `Zenity` instance without configuration.
pub fn new() -> Zenity {
Default::default()
}
/// Sets the icon of the dialog box.
///
/// The icon can either be one of `error`, `info`, `question` or `warning`, or the path to an
/// image to use. The default image depends on the dialog type.
pub fn set_icon(&mut self, icon: impl Into<String>) {
self.icon = Some(icon.into());
}
/// Sets the height of the dialog boxes.
///
/// The height is given in pixels. The actual height of the dialog box might be higher than
/// the given height if the content would not fit otherwise.
pub fn set_height(&mut self, height: u32) {
self.height = Some(height.to_string());
}
/// Sets the width of the dialog boxes.
///
/// The width is given in pixels. The actual width of the dialog box might be higher than the
/// given width if the content would not fit otherwise.
pub fn set_width(&mut self, width: u32) {
self.width = Some(width.to_string());
}
/// Sets the timout of the dialog boxes (in seconds).
///
/// After the timeout, the dialog box is closed. The timeout is handled like a cancel event.
/// Per default, there is no timeout.
pub fn set_timeout(&mut self, timeout: u32) {
self.timeout = Some(timeout.to_string());
}
pub(crate) fn is_available() -> bool {
super::is_available("zenity")
}
fn execute(&self, args: Vec<&str>, title: &Option<String>) -> Result<process::Output> {
let mut command = process::Command::new("zenity");
if let Some(ref icon) = self.icon {
command.arg("--window-icon");
command.arg(icon);
}
if let Some(ref width) = self.width {
command.arg("--width");
command.arg(width);
}
if let Some(ref height) = self.height {
command.arg("--height");
command.arg(height);
}
if let Some(ref timeout) = self.timeout {
command.arg("--timeout");
command.arg(timeout);
}
if let Some(ref title) = title {
command.arg("--title");
command.arg(title);
}
command.args(args);
command.output().map_err(Error::IoError)
}
}
impl AsRef<Zenity> for Zenity {
fn as_ref(&self) -> &Self {
self
}
}
fn require_success(status: process::ExitStatus) -> Result<()> {
if status.success() {
Ok(())
} else if let Some(code) = status.code() {
match code {
5 => Ok(()),
_ => Err(Error::from(("zenity", status))),
}
} else {
Err(Error::from(("zenity", status)))
}
}
fn get_choice(status: process::ExitStatus) -> Result<Choice> {
if let Some(code) = status.code() {
match code {
0 => Ok(Choice::Yes),
1 => Ok(Choice::No),
5 => Ok(Choice::Cancel),
_ => Err(Error::from(("zenity", status))),
}
} else {
Err(Error::from(("zenity", status)))
}
}
fn get_stdout(output: process::Output) -> Result<Option<String>> {
if output.status.success() {
String::from_utf8(output.stdout)
.map(|s| Some(s.trim_end_matches('\n').to_string()))
.map_err(Error::from)
} else if let Some(code) = output.status.code() {
match code {
0 => Ok(None),
1 => Ok(None),
5 => Ok(None),
_ => Err(Error::from(("zenity", output.status))),
}
} else {
Err(Error::from(("zenity", output.status)))
}
}
impl super::Backend for Zenity {
fn show_input(&self, input: &Input) -> Result<Option<String>> {
let mut args = vec!["--entry", "--text", &input.text];
if let Some(ref default) = input.default {
args.push("--entry-text");
args.push(default);
}
self.execute(args, &input.title).and_then(get_stdout)
}
fn show_message(&self, message: &Message) -> Result<()> {
let args = vec!["--info", "--text", &message.text];
self.execute(args, &message.title)
.and_then(|output| require_success(output.status))
.map(|_| ())
}
fn show_password(&self, password: &Password) -> Result<Option<String>> {
let args = vec!["--password"];
self.execute(args, &password.title).and_then(get_stdout)
}
fn show_question(&self, question: &Question) -> Result<Choice> {
let args = vec!["--question", "--text", &question.text];
self.execute(args, &question.title)
.and_then(|output| get_choice(output.status))
}
}
|
