neovim-gtk/src/shell_dlg.rs
2017-04-01 21:25:33 +03:00

96 lines
2.9 KiB
Rust

use ui::{SH, Ui};
use neovim_lib::{NeovimApi, CallError, Value};
use gtk;
use gtk::prelude::*;
use gtk::{MessageDialog, MessageType, ButtonsType};
pub fn can_close_window(ui: &Ui) -> bool {
match get_changed_buffers() {
Ok(vec) => {
if !vec.is_empty() {
show_not_saved_dlg(ui, &vec)
} else {
true
}
}
Err(ref err) => {
println!("Error getting info from nvim: {}", err);
true
}
}
}
fn show_not_saved_dlg(ui: &Ui, changed_bufs: &Vec<String>) -> bool {
let mut changed_files = changed_bufs.iter()
.map(|n| if n.is_empty() { "<No name>" } else { n })
.fold(String::new(), |acc, v| acc + v + "\n");
changed_files.pop();
let flags = gtk::DIALOG_MODAL | gtk::DIALOG_DESTROY_WITH_PARENT;
let dlg = MessageDialog::new(ui.window.as_ref(),
flags,
MessageType::Question,
ButtonsType::None,
&format!("Save changes to '{}'?", changed_files));
const SAVE_ID: i32 = 0;
const CLOSE_WITHOUT_SAVE: i32 = 1;
const CANCEL_ID: i32 = 2;
dlg.add_buttons(&[("_Yes", SAVE_ID), ("_No", CLOSE_WITHOUT_SAVE), ("_Cancel", CANCEL_ID)]);
let res = match dlg.run() {
SAVE_ID => {
SHELL!(shell = {
let mut nvim = shell.nvim();
match nvim.command("wa") {
Err(ref err) => {
println!("Error: {}", err);
false
}
_ => true
}
})
},
CLOSE_WITHOUT_SAVE => true,
CANCEL_ID => false,
_ => false,
};
dlg.destroy();
res
}
fn get_changed_buffers() -> Result<Vec<String>, CallError> {
SHELL!(shell = {
let mut nvim = shell.nvim();
let buffers = nvim.get_buffers().unwrap();
Ok(buffers.iter()
.map(|buf| {
(match buf.get_option(&mut nvim, "modified") {
Ok(Value::Boolean(val)) => val,
Ok(_) => {
println!("Value must be boolean");
false
}
Err(ref err) => {
println!("Something going wrong while getting buffer option: {}", err);
false
}
},
match buf.get_name(&mut nvim) {
Ok(name) => name,
Err(ref err) => {
println!("Something going wrong while getting buffer name: {}", err);
"<Error>".to_owned()
}
})
})
.filter(|e| e.0)
.map(|e| e.1)
.collect())
})
}