deja-vu/deja_vu/src/components/left.rs

389 lines
16 KiB
Rust

// This file is part of Deja-vu.
//
// Deja-vu is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Deja-vu is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Deja-vu. If not, see <https://www.gnu.org/licenses/>.
//
use color_eyre::Result;
use crossterm::event::KeyEvent;
use ratatui::{
prelude::*,
widgets::{Block, Borders, HighlightSpacing, List, ListItem, Padding, Paragraph},
};
use tokio::sync::mpsc::UnboundedSender;
use tracing::info;
use super::{popup, state::StatefulList, Component};
use crate::{
action::Action,
app::Mode,
config::Config,
system::{
disk::{Disk, Partition, PartitionTableType},
drivers::{self, Driver},
},
};
#[derive(Default)]
pub struct Left {
command_tx: Option<UnboundedSender<Action>>,
config: Config,
disk_id_dest: Option<usize>,
table_type: Option<PartitionTableType>,
title_text: String,
list_disks: StatefulList<Disk>,
list_drivers: StatefulList<Driver>,
list_parts: StatefulList<Partition>,
list_table_types: StatefulList<PartitionTableType>,
mode: Mode,
selections: Vec<Option<usize>>,
}
impl Left {
pub fn new() -> Self {
Self {
selections: vec![None, None],
title_text: String::from("Home"),
..Default::default()
}
}
}
impl Component for Left {
fn handle_key_event(&mut self, key: KeyEvent) -> Result<Option<Action>> {
let _ = key; // to appease clippy
Ok(None)
}
fn register_action_handler(&mut self, tx: UnboundedSender<Action>) -> Result<()> {
self.command_tx = Some(tx);
Ok(())
}
fn register_config_handler(&mut self, config: Config) -> Result<()> {
self.config = config;
Ok(())
}
fn update(&mut self, action: Action) -> Result<Option<Action>> {
match action {
Action::KeyUp => match self.mode {
Mode::InstallDrivers => self.list_drivers.previous(),
Mode::SelectDisks => self.list_disks.previous(),
Mode::SelectTableType => self.list_table_types.previous(),
Mode::SelectParts => self.list_parts.previous(),
_ => {}
},
Action::KeyDown => match self.mode {
Mode::InstallDrivers => self.list_drivers.next(),
Mode::SelectDisks => self.list_disks.next(),
Mode::SelectTableType => self.list_table_types.next(),
Mode::SelectParts => self.list_parts.next(),
_ => {}
},
Action::Process => match self.mode {
// NOTE: Remove all variants except Mode::Confirm?
Mode::Confirm => {
if let Some(command_tx) = self.command_tx.clone() {
command_tx.send(Action::NextScreen)?;
}
}
Mode::InstallDrivers
| Mode::SelectDisks
| Mode::SelectTableType
| Mode::SelectParts => {
// Menu selection sections
let selection: Option<usize> = match self.mode {
Mode::InstallDrivers => self.list_drivers.selected(),
Mode::SelectDisks => self.list_disks.selected(),
Mode::SelectTableType => self.list_table_types.selected(),
Mode::SelectParts => self.list_parts.selected(),
_ => panic!("This shouldn't happen!"),
};
if let Some(index) = selection {
if let Some(command_tx) = self.command_tx.clone() {
let mut selection_one: Option<usize> = None;
let mut selection_two: Option<usize> = None;
// Get selection(s)
if self.selections[0].is_none() {
// First selection
selection_one = Some(index);
selection_two = None;
} else {
// Second selection
if let Some(source_index) = self.selections[0] {
if index == source_index {
// Toggle first selection
selection_one = None;
self.selections[0] = None;
} else {
selection_one = self.selections[0];
selection_two = Some(index);
}
}
}
// Send selection(s) if needed
// NOTE: This is needed to keep the app and all components in sync
match self.mode {
Mode::InstallDrivers => {
// Only need to select one entry
if let Some(driver) = self.list_drivers.get_selected() {
command_tx.send(Action::SelectDriver(driver.clone()))?;
}
}
Mode::SelectTableType => {
// Only need to select one entry
if let Some(table_type) = self.list_table_types.get_selected() {
self.table_type = Some(table_type.clone());
command_tx.send(Action::SelectTableType(table_type))?;
}
}
Mode::SelectDisks | Mode::SelectParts => {
command_tx
.send(Action::Select(selection_one, selection_two))?;
// Advance screen if both selections made
if selection_two.is_some() {
command_tx.send(Action::NextScreen)?;
}
}
_ => {}
};
}
}
}
_ => {}
},
Action::Select(Some(index), None) => self.selections[0] = Some(index),
Action::Select(_, Some(index)) => {
if self.mode == Mode::SelectDisks {
self.disk_id_dest = Some(index);
}
}
Action::SetMode(new_mode) => {
let prev_mode = self.mode;
self.mode = new_mode;
match (prev_mode, new_mode) {
(_, Mode::ScanDisks) => {
self.list_disks.clear_items();
self.title_text = String::new();
}
(_, Mode::InstallDrivers) => {
self.list_drivers.set_items(drivers::scan());
self.selections[0] = None;
self.selections[1] = None;
self.title_text = String::from("Install Drivers");
if self.list_drivers.is_empty() {
if let Some(command_tx) = self.command_tx.clone() {
command_tx.send(Action::DisplayPopup(
popup::Type::Error,
String::from("No drivers available to install"),
))?;
}
}
}
(_, Mode::SelectDisks) => {
self.selections[0] = None;
self.selections[1] = None;
self.title_text = String::from("Select Source and Destination Disks");
}
(_, Mode::SelectTableType) => {
self.list_table_types
.set_items(vec![PartitionTableType::Guid, PartitionTableType::Legacy]);
self.selections[0] = None;
self.selections[1] = None;
self.title_text = String::from("Select Partition Table Type");
}
(_, Mode::PreClone | Mode::Clone | Mode::PostClone) => {
self.title_text = String::from("Processing");
}
(_, Mode::SelectParts) => {
self.title_text = String::from("Select Boot and OS Partitions");
}
(Mode::SelectDisks | Mode::SelectParts, Mode::Confirm) => {
self.title_text = String::from("Confirm Selections");
}
(Mode::SelectTableType, Mode::Confirm) => {
self.title_text = String::from("Confirm Selections (Again)");
}
(_, Mode::Done | Mode::Failed) => self.title_text = String::from("Done"),
// Invalid states
(_, Mode::Confirm) => panic!("This shouldn't happen."),
}
}
Action::UpdateDiskList(disks) => {
info!("Updating disk list");
self.list_disks.set_items(disks);
if self.mode == Mode::Clone {
if let Some(index) = self.disk_id_dest {
if let Some(disk) = self.list_disks.get(index) {
self.list_parts.set_items(disk.get_parts());
// Auto-select first partition and highlight likely OS partition
if let Some(table_type) = &self.table_type {
match table_type {
PartitionTableType::Guid => {
if disk.num_parts() >= 3 {
self.selections[0] = Some(0);
self.list_parts.select(2);
}
}
PartitionTableType::Legacy => {
if disk.num_parts() >= 2 {
self.selections[0] = Some(0);
self.list_parts.select(1);
}
}
}
}
}
}
}
}
_ => {}
}
Ok(None)
}
fn draw(&mut self, frame: &mut Frame, area: Rect) -> Result<()> {
let [title_area, body_area] = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Length(1), Constraint::Min(1)])
.areas(area);
// Title
let title =
Paragraph::new(Line::from(Span::styled(&self.title_text, Style::default())).centered())
.block(Block::default().borders(Borders::NONE));
frame.render_widget(title, title_area);
// Body
match self.mode {
Mode::ScanDisks
| Mode::PreClone
| Mode::Clone
| Mode::PostClone
| Mode::Done
| Mode::Failed => {
// Leave blank
let paragraph = Paragraph::new(String::new()).block(
Block::default()
.borders(Borders::ALL)
.padding(Padding::new(1, 1, 1, 1)),
);
frame.render_widget(paragraph, body_area);
// Bail early
return Ok(());
}
Mode::Confirm => {
// Nag the user
let paragraph = Paragraph::new(String::from("Are the listed selections correct?"))
.block(
Block::default()
.borders(Borders::ALL)
.padding(Padding::new(1, 1, 1, 1)),
);
frame.render_widget(paragraph, body_area);
// Bail early
return Ok(());
}
Mode::InstallDrivers
| Mode::SelectDisks
| Mode::SelectTableType
| Mode::SelectParts => {
// List modes
let mut list_items = Vec::<ListItem>::new();
let list_items_strings: Vec<String> = match self.mode {
Mode::InstallDrivers => self
.list_drivers
.items
.iter()
.map(|i| format!("{i}"))
.collect(),
Mode::SelectDisks => self
.list_disks
.items
.iter()
.map(|i| format!("{i}"))
.collect(),
Mode::SelectTableType => self
.list_table_types
.items
.iter()
.map(|i| format!("{i}"))
.collect(),
Mode::SelectParts => self
.list_parts
.items
.iter()
.map(|i| format!("{i}"))
.collect(),
_ => panic!("This shouldn't happen."),
};
if !list_items_strings.is_empty() {
for (index, item) in list_items_strings.iter().enumerate() {
let mut item_style = Style::default();
let mut item_text_tail = "";
if let Some(selection_one) = self.selections[0] {
if selection_one == index {
item_style = Style::new().yellow();
item_text_tail = match self.mode {
Mode::SelectDisks => " ~source disk~",
Mode::SelectParts => " ~boot volume~",
_ => "",
}
}
}
list_items.push(
ListItem::new(format!(" {item}\n{item_text_tail}\n\n"))
.style(item_style),
);
}
}
let list = List::new(list_items)
.block(
Block::default()
.borders(Borders::ALL)
.padding(Padding::new(1, 1, 1, 1)),
)
.highlight_spacing(HighlightSpacing::Always)
.highlight_style(Style::new().green().bold())
.highlight_symbol(" --> ")
.repeat_highlight_symbol(false);
match self.mode {
Mode::InstallDrivers => {
frame.render_stateful_widget(list, body_area, &mut self.list_drivers.state);
}
Mode::SelectDisks => {
frame.render_stateful_widget(list, body_area, &mut self.list_disks.state);
}
Mode::SelectTableType => frame.render_stateful_widget(
list,
body_area,
&mut self.list_table_types.state,
),
Mode::SelectParts => {
frame.render_stateful_widget(list, body_area, &mut self.list_parts.state);
}
_ => panic!("This shouldn't happen."),
}
}
}
// Done
Ok(())
}
}