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/*
* meli - ui crate.
*
* Copyright 2017-2018 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli 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.
*
* meli 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 meli. If not, see <http://www.gnu.org/licenses/>.
*/
/*! Entities that handle Mail specific functions.
*/
use super::*;
use melib::backends::Folder;
pub mod listing;
pub use listing::*;
pub mod view;
pub use view::*;
mod compose;
pub use self::compose::*;
mod accounts;
pub use self::accounts::*;
#[derive(Debug)]
struct AccountMenuEntry {
name: String,
// Index in the config account vector.
index: usize,
// Each entry and its index in the account
entries: Vec<(usize, Folder)>,
}
/// The account sidebar.
#[derive(Debug)]
pub struct AccountMenu {
accounts: Vec<AccountMenuEntry>,
dirty: bool,
cursor: Option<(usize, usize)>,
}
impl fmt::Display for AccountMenu {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display subject/info
write!(f, "menu")
}
}
impl AccountMenu {
pub fn new(accounts: &[Account]) -> Self {
let accounts = accounts
.iter()
.enumerate()
.map(|(i, a)| AccountMenuEntry {
name: a.name().to_string(),
index: i,
entries: {
let mut entries = Vec::with_capacity(a.len());
for (idx, acc) in a.list_folders().into_iter().enumerate() {
entries.push((idx, acc));
}
entries
},
})
.collect();
AccountMenu {
accounts,
dirty: true,
cursor: None,
}
}
/*
* Print a single account in the menu area.
*/
fn print_account(
&self,
grid: &mut CellBuffer,
area: Area,
a: &AccountMenuEntry,
context: &mut Context,
) -> usize {
if !is_valid_area!(area) {
eprintln!("BUG: invalid area in print_account");
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let highlight = self.cursor.map(|(x, _)| x == a.index).unwrap_or(false);
let mut parents: Vec<Option<usize>> = vec![None; a.entries.len()];
for (idx, e) in a.entries.iter().enumerate() {
for c in e.1.children() {
parents[*c] = Some(idx);
}
}
let mut roots = Vec::new();
for (idx, c) in parents.iter().enumerate() {
if c.is_none() {
roots.push(idx);
}
}
let mut inc = 0;
let mut depth = String::from("");
let mut s = format!("{}\n", a.name);
fn pop(depth: &mut String) {
depth.pop();
depth.pop();
}
fn push(depth: &mut String, c: char) {
depth.push(c);
}
fn print(
root: usize,
parents: &[Option<usize>],
depth: &mut String,
entries: &[(usize, Folder)],
s: &mut String,
inc: &mut usize,
index: usize, //account index
context: &mut Context,
) {
let len = s.len();
match context.accounts[index].status(root) {
Ok(_) => {}
Err(_) => {
return;
// TODO: Show progress visually
}
}
let count = context.accounts[index][root]
.as_ref()
.unwrap()
.collection
.values()
.filter(|e| !e.is_seen())
.count();
s.insert_str(
len,
&format!("{} {} {}\n ", *inc, &entries[root].1.name(), count),
);
*inc += 1;
for child in entries[root].1.children().iter() {
let len = s.len();
s.insert_str(len, &format!("{} ", depth));
push(depth, ' ');
print(*child, parents, depth, entries, s, inc, index, context);
pop(depth);
}
}
for r in roots {
print(
r, &parents, &mut depth, &a.entries, &mut s, &mut inc, a.index, context,
);
}
let lines: Vec<&str> = s.lines().collect();
let lines_len = lines.len();
if lines_len < 2 {
return 0;
}
let mut idx = 0;
for y in get_y(upper_left)..get_y(bottom_right) {
if idx == lines_len {
break;
}
let s = lines[idx].to_string();
let (color_fg, color_bg) = if highlight {
if self.cursor.unwrap().1 + 1 == idx {
(Color::Byte(233), Color::Byte(15))
} else {
(Color::Byte(15), Color::Byte(233))
}
} else {
(Color::Default, Color::Default)
};
let (x, _) = write_string_to_grid(
&s,
grid,
color_fg,
color_bg,
(set_y(upper_left, y), bottom_right),
false,
);
{
let mut x = get_x(upper_left);
while let Some(cell) = grid.get_mut(x, y) {
if x == get_x(bottom_right) {
break;
}
match cell.ch() {
c if c.is_numeric() => {
cell.set_fg(Color::Byte(243));
x += 1;
continue;
}
c if c.is_whitespace() => {
x += 1;
continue;
}
_ => {
break;
}
}
}
}
if highlight && idx > 1 && self.cursor.unwrap().1 == idx - 1 {
change_colors(grid, ((x, y), (get_x(bottom_right), y)), color_fg, color_bg);
} else {
change_colors(grid, ((x, y), set_y(bottom_right, y)), color_fg, color_bg);
}
idx += 1;
}
if idx == 0 {
0
} else {
idx - 1
}
}
}
impl Component for AccountMenu {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !self.is_dirty() {
return;
}
clear_area(grid, area);
let upper_left = upper_left!(area);
let x = get_x(upper_left);
let bottom_right = bottom_right!(area);
let x_max = get_x(bottom_right);
self.dirty = false;
let mut y = get_y(upper_left);
for a in &self.accounts {
for x in x..=x_max {
grid[(x, y)].set_ch('━');
}
y += 1;
y += self.print_account(grid, (set_y(upper_left, y), bottom_right), &a, context);
}
context.dirty_areas.push_back(area);
}
fn process_event(&mut self, event: &mut UIEvent, _context: &mut Context) -> bool {
match event.event_type {
UIEventType::RefreshMailbox(c) => {
self.cursor = Some(c);
self.dirty = true;
}
UIEventType::ChangeMode(UIMode::Normal) => {
self.dirty = true;
}
UIEventType::Resize => {
self.dirty = true;
}
_ => {}
}
false
}
fn is_dirty(&self) -> bool {
self.dirty
}
fn set_dirty(&mut self) {
self.dirty = true;
}
}