710 lines
27 KiB
Rust
710 lines
27 KiB
Rust
/*
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* meli
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*
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* Copyright 2019 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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use std::cmp;
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use indexmap::IndexMap;
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use melib::{backends::AccountHash, SortOrder};
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use super::*;
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use crate::{accounts::MailboxEntry, melib::text::TextProcessing};
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#[derive(Clone, Copy, Debug, Eq, PartialEq)]
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enum MailboxAction {
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Rename,
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Move,
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Subscribe,
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Unsubscribe,
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}
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#[derive(Debug, Default, PartialEq)]
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enum ViewMode {
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#[default]
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List,
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Action(UIDialog<MailboxAction>),
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}
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#[derive(Clone, Copy, Debug, PartialEq)]
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#[repr(u8)]
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enum Column {
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_0 = 0,
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_1,
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_2,
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_3,
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}
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const fn _assert_len() {
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if MailboxManager::HEADERS.len() != Column::_3 as usize + 1 {
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panic!("MailboxManager::HEADERS length changed, please update Column enum accordingly.");
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}
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}
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const _: () = _assert_len();
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#[derive(Debug)]
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pub struct MailboxManager {
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cursor_pos: usize,
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new_cursor_pos: usize,
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account_pos: usize,
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account_hash: AccountHash,
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length: usize,
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data_columns: DataColumns<4>,
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min_width: [usize; 4],
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sort_col: Column,
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sort_order: SortOrder,
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entries: IndexMap<MailboxHash, MailboxEntry>,
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mode: ViewMode,
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initialized: bool,
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theme_default: ThemeAttribute,
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highlight_theme: ThemeAttribute,
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dirty: bool,
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movement: Option<PageMovement>,
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id: ComponentId,
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}
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impl std::fmt::Display for MailboxManager {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "mailboxes")
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}
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}
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impl MailboxManager {
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const HEADERS: [&'static str; 4] = ["name", "path", "size", "subscribed"];
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pub fn new(context: &Context, account_pos: usize) -> Self {
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let account_hash = context.accounts[account_pos].hash();
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let theme_default = crate::conf::value(context, "theme_default");
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let mut data_columns = DataColumns::default();
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data_columns.theme_config.set_single_theme(theme_default);
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Self {
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cursor_pos: 0,
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new_cursor_pos: 0,
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account_hash,
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mode: ViewMode::default(),
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entries: IndexMap::default(),
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length: 0,
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account_pos,
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data_columns,
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sort_col: Column::_1,
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sort_order: SortOrder::Asc,
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min_width: [0; 4],
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theme_default,
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highlight_theme: crate::conf::value(context, "highlight"),
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initialized: false,
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dirty: true,
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movement: None,
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id: ComponentId::default(),
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}
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}
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fn initialize(&mut self, context: &Context) {
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let account = &context.accounts[self.account_pos];
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self.length = account.mailbox_entries.len();
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let mut entries = account.mailbox_entries.clone();
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entries.sort_by(|_, a, _, b| match (self.sort_col, self.sort_order) {
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(Column::_0, SortOrder::Asc) => a.ref_mailbox.name().cmp(b.ref_mailbox.name()),
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(Column::_0, SortOrder::Desc) => b.ref_mailbox.name().cmp(a.ref_mailbox.name()),
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(Column::_1, SortOrder::Asc) => a.ref_mailbox.path().cmp(b.ref_mailbox.path()),
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(Column::_1, SortOrder::Desc) => b.ref_mailbox.path().cmp(a.ref_mailbox.path()),
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(Column::_2, SortOrder::Asc) => {
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let (_, a) = a.ref_mailbox.count().ok().unwrap_or((0, 0));
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let (_, b) = b.ref_mailbox.count().ok().unwrap_or((0, 0));
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a.cmp(&b)
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}
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(Column::_2, SortOrder::Desc) => {
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let (_, a) = a.ref_mailbox.count().ok().unwrap_or((0, 0));
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let (_, b) = b.ref_mailbox.count().ok().unwrap_or((0, 0));
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b.cmp(&a)
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}
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(Column::_3, SortOrder::Asc)
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if a.ref_mailbox.is_subscribed() && b.ref_mailbox.is_subscribed() =>
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{
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std::cmp::Ordering::Equal
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}
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(Column::_3, SortOrder::Asc) if a.ref_mailbox.is_subscribed() => {
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std::cmp::Ordering::Greater
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}
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(Column::_3, SortOrder::Desc) if a.ref_mailbox.is_subscribed() => {
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std::cmp::Ordering::Less
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}
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(Column::_3, SortOrder::Asc) => std::cmp::Ordering::Less,
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(Column::_3, SortOrder::Desc) => std::cmp::Ordering::Greater,
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});
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self.entries = entries;
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macro_rules! hdr {
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($idx:literal) => {{
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Self::HEADERS[$idx].len() + if self.sort_col as u8 == $idx { 1 } else { 0 }
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}};
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}
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self.set_dirty(true);
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let mut min_width = [hdr!(0), hdr!(1), hdr!(2), hdr!(3)];
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for c in self.entries.values() {
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// title
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min_width[0] = cmp::max(min_width[0], c.name().split_graphemes().len());
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// path
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min_width[1] = cmp::max(min_width[1], c.ref_mailbox.path().len());
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}
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// name column
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_ = self.data_columns.columns[0].resize_with_context(min_width[0], self.length, context);
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self.data_columns.columns[0].grid_mut().clear(None);
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// path column
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_ = self.data_columns.columns[1].resize_with_context(min_width[1], self.length, context);
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self.data_columns.columns[1].grid_mut().clear(None);
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// size column
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_ = self.data_columns.columns[2].resize_with_context(min_width[2], self.length, context);
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self.data_columns.columns[2].grid_mut().clear(None);
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// subscribed column
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_ = self.data_columns.columns[3].resize_with_context(min_width[3], self.length, context);
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self.data_columns.columns[3].grid_mut().clear(None);
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for (idx, e) in self.entries.values().enumerate() {
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{
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let area = self.data_columns.columns[0].area().nth_row(idx);
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self.data_columns.columns[0].grid_mut().write_string(
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e.name(),
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area,
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None,
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);
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}
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{
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let area = self.data_columns.columns[1].area().nth_row(idx);
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self.data_columns.columns[1].grid_mut().write_string(
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e.ref_mailbox.path(),
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area,
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None,
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);
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}
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{
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let area = self.data_columns.columns[2].area().nth_row(idx);
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let (_unseen, total) = e.ref_mailbox.count().ok().unwrap_or((0, 0));
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self.data_columns.columns[2].grid_mut().write_string(
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&total.to_string(),
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area,
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None,
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);
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}
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{
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let area = self.data_columns.columns[3].area().nth_row(idx);
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self.data_columns.columns[3].grid_mut().write_string(
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if e.ref_mailbox.is_subscribed() {
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"yes"
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} else {
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"no"
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},
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area,
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None,
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);
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}
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}
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if self.length == 0 {
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let message = "No mailboxes.".to_string();
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if self.data_columns.columns[0].resize_with_context(message.len(), self.length, context)
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{
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let area = self.data_columns.columns[0].area();
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self.data_columns.columns[0].grid_mut().write_string(
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&message,
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area,
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None,
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);
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}
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}
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self.min_width = min_width;
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}
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fn draw_list(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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let rows = area.height();
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if rows < 2 {
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return;
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}
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if self.length == 0 {
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grid.clear_area(area, self.theme_default);
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grid.copy_area(
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self.data_columns.columns[0].grid(),
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area,
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self.data_columns.columns[0].area(),
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);
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context.dirty_areas.push_back(area);
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return;
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}
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if let Some(mvm) = self.movement.take() {
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match mvm {
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PageMovement::Up(amount) => {
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self.new_cursor_pos = self.new_cursor_pos.saturating_sub(amount);
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}
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PageMovement::PageUp(multiplier) => {
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self.new_cursor_pos = self.new_cursor_pos.saturating_sub(rows * multiplier);
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}
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PageMovement::Down(amount) => {
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if self.new_cursor_pos + amount < self.length {
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self.new_cursor_pos += amount;
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} else {
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self.new_cursor_pos = self.length - 1;
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}
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}
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PageMovement::PageDown(multiplier) => {
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#[allow(clippy::comparison_chain)]
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if self.new_cursor_pos + rows * multiplier < self.length {
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self.new_cursor_pos += rows * multiplier;
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} else if self.new_cursor_pos + rows * multiplier > self.length {
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self.new_cursor_pos = self.length - 1;
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} else {
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self.new_cursor_pos = (self.length / rows) * rows;
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}
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}
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PageMovement::Right(amount) => {
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self.data_columns.x_offset += amount;
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self.data_columns.x_offset = self.data_columns.x_offset.min(
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self.data_columns
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.widths
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.iter()
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.map(|w| w + 2)
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.sum::<usize>()
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.saturating_sub(2),
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);
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}
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PageMovement::Left(amount) => {
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self.data_columns.x_offset = self.data_columns.x_offset.saturating_sub(amount);
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}
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PageMovement::Home => {
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self.new_cursor_pos = 0;
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}
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PageMovement::End => {
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self.new_cursor_pos = self.length - 1;
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}
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}
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}
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let prev_page_no = (self.cursor_pos).wrapping_div(rows);
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let page_no = (self.new_cursor_pos).wrapping_div(rows);
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let top_idx = page_no * rows;
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if self.length >= rows {
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context
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.replies
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.push_back(UIEvent::StatusEvent(StatusEvent::ScrollUpdate(
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ScrollUpdate::Update {
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id: self.id,
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context: ScrollContext {
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shown_lines: top_idx + rows,
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total_lines: self.length,
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has_more_lines: false,
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},
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},
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)));
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} else {
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context
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.replies
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.push_back(UIEvent::StatusEvent(StatusEvent::ScrollUpdate(
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ScrollUpdate::End(self.id),
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)));
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}
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// If cursor position has changed, remove the highlight from the previous
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// position and apply it in the new one.
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if self.cursor_pos != self.new_cursor_pos && prev_page_no == page_no {
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let old_cursor_pos = self.cursor_pos;
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self.cursor_pos = self.new_cursor_pos;
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for &(idx, highlight) in &[(old_cursor_pos, false), (self.new_cursor_pos, true)] {
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if idx >= self.length {
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continue; //bounds check
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}
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let new_area = area.nth_row(idx % rows);
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self.data_columns
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.draw(grid, idx, self.cursor_pos, grid.bounds_iter(new_area));
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let row_attr = if highlight {
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self.highlight_theme
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} else {
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self.theme_default
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};
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grid.change_theme(new_area, row_attr);
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context.dirty_areas.push_back(new_area);
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}
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return;
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} else if self.cursor_pos != self.new_cursor_pos {
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self.cursor_pos = self.new_cursor_pos;
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}
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if self.new_cursor_pos >= self.length {
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self.new_cursor_pos = self.length - 1;
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self.cursor_pos = self.new_cursor_pos;
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}
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// Page_no has changed, so draw new page
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_ = self
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.data_columns
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.recalc_widths((area.width(), area.height()), top_idx);
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grid.clear_area(area, self.theme_default);
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// copy table columns
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self.data_columns
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.draw(grid, top_idx, self.cursor_pos, grid.bounds_iter(area));
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// highlight cursor
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grid.change_theme(area.nth_row(self.cursor_pos % rows), self.highlight_theme);
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// clear gap if available height is more than count of entries
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if top_idx + rows > self.length {
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grid.change_theme(area.skip_rows(self.length - top_idx), self.theme_default);
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}
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context.dirty_areas.push_back(area);
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}
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}
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impl Component for MailboxManager {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if !self.is_dirty() {
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return;
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}
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if !self.initialized {
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self.initialize(context);
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}
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if self.dirty {
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let area = area.nth_row(0);
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// Draw column headers.
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grid.clear_area(area, self.theme_default);
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let mut x_offset = 0;
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for (i, (h, w)) in Self::HEADERS.iter().zip(self.min_width).enumerate() {
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grid.write_string(
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h,
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs | Attr::BOLD,
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area.skip_cols(x_offset),
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None,
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);
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if self.sort_col as usize == i {
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use SortOrder::*;
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let arrow = match (grid.ascii_drawing, self.sort_order) {
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(true, Asc) => DataColumns::<4>::ARROW_UP_ASCII,
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(true, Desc) => DataColumns::<4>::ARROW_DOWN_ASCII,
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(false, Asc) => DataColumns::<4>::ARROW_UP,
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(false, Desc) => DataColumns::<4>::ARROW_DOWN,
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};
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grid.write_string(
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arrow,
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self.theme_default.fg,
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self.theme_default.bg,
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self.theme_default.attrs,
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area.skip_cols(x_offset + h.len()),
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None,
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);
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}
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x_offset += w + 2;
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}
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context.dirty_areas.push_back(area);
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}
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let area = area.skip_rows(1);
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self.draw_list(grid, area, context);
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if let ViewMode::Action(ref mut s) = self.mode {
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s.draw(grid, area, context);
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}
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self.dirty = false;
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}
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fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
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if let UIEvent::ConfigReload { old_settings: _ } = event {
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self.theme_default = crate::conf::value(context, "theme_default");
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self.initialized = false;
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self.set_dirty(true);
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}
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if let ViewMode::Action(ref mut s) = self.mode {
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match &event {
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UIEvent::FinishedUIDialog(id, result) if s.id() == *id => {
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self.set_dirty(true);
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self.mode = ViewMode::List;
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if let Some(actions) = result.downcast_ref::<Vec<MailboxAction>>() {
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if actions.len() == 1 {
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use crate::actions::MailboxOperation;
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match actions[0] {
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MailboxAction::Move | MailboxAction::Rename => {
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context.replies.push_back(UIEvent::CmdInput(Key::Paste(
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format!(
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"rename-mailbox \"{account_name}\" \
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\"{mailbox_path_src}\" ",
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account_name =
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context.accounts[&self.account_hash].name(),
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mailbox_path_src =
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self.entries[self.cursor_pos].ref_mailbox.path()
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),
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)));
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context
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.replies
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.push_back(UIEvent::ChangeMode(UIMode::Command));
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}
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MailboxAction::Subscribe => {
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if let Err(err) = context.accounts[&self.account_hash]
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.mailbox_operation(MailboxOperation::Subscribe(
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self.entries[self.cursor_pos]
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.ref_mailbox
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.path()
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.to_string(),
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))
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{
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context.replies.push_back(UIEvent::Notification {
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title: None,
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source: None,
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body: err.to_string().into(),
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kind: Some(crate::types::NotificationType::Error(
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err.kind,
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)),
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});
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}
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}
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MailboxAction::Unsubscribe => {
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if let Err(err) = context.accounts[&self.account_hash]
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.mailbox_operation(MailboxOperation::Unsubscribe(
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self.entries[self.cursor_pos]
|
|
.ref_mailbox
|
|
.path()
|
|
.to_string(),
|
|
))
|
|
{
|
|
context.replies.push_back(UIEvent::Notification {
|
|
title: None,
|
|
source: None,
|
|
body: err.to_string().into(),
|
|
kind: Some(crate::types::NotificationType::Error(
|
|
err.kind,
|
|
)),
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
_ => {}
|
|
}
|
|
return s.process_event(event, context);
|
|
}
|
|
|
|
let shortcuts = self.shortcuts(context);
|
|
match event {
|
|
UIEvent::AccountStatusChange(account_hash, msg)
|
|
if *account_hash == self.account_hash =>
|
|
{
|
|
self.initialize(context);
|
|
|
|
self.set_dirty(true);
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateStatus(match msg {
|
|
Some(msg) => format!("{} {}", self.status(context), msg),
|
|
None => self.status(context),
|
|
})));
|
|
}
|
|
UIEvent::Action(Action::SortColumn(column, order)) => {
|
|
let column = match *column {
|
|
0 => Column::_0,
|
|
1 => Column::_1,
|
|
2 => Column::_2,
|
|
3 => Column::_3,
|
|
other => {
|
|
context.replies.push_back(UIEvent::StatusEvent(
|
|
StatusEvent::DisplayMessage(format!(
|
|
"Invalid column index `{}`: there are {} columns.",
|
|
other,
|
|
Self::HEADERS.len()
|
|
)),
|
|
));
|
|
|
|
return true;
|
|
}
|
|
};
|
|
if (self.sort_col, self.sort_order) != (column, *order) {
|
|
self.sort_col = column;
|
|
self.sort_order = *order;
|
|
self.initialized = false;
|
|
self.set_dirty(true);
|
|
}
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char(ref c)) if c.is_ascii_digit() => {
|
|
let n = *c as u8 - b'0'; // safe cast because of is_ascii_digit() check;
|
|
let column = match n {
|
|
1 => Column::_0,
|
|
2 => Column::_1,
|
|
3 => Column::_2,
|
|
4 => Column::_3,
|
|
_ => {
|
|
return false;
|
|
}
|
|
};
|
|
if self.sort_col == column {
|
|
self.sort_order = !self.sort_order;
|
|
} else {
|
|
self.sort_col = column;
|
|
self.sort_order = SortOrder::default();
|
|
}
|
|
self.initialized = false;
|
|
self.set_dirty(true);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["scroll_up"]) =>
|
|
{
|
|
let amount = 1;
|
|
self.movement = Some(PageMovement::Up(amount));
|
|
self.set_dirty(true);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["scroll_down"])
|
|
&& self.cursor_pos < self.length.saturating_sub(1) =>
|
|
{
|
|
let amount = 1;
|
|
self.set_dirty(true);
|
|
self.movement = Some(PageMovement::Down(amount));
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["prev_page"]) =>
|
|
{
|
|
let mult = 1;
|
|
self.set_dirty(true);
|
|
self.movement = Some(PageMovement::PageUp(mult));
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["next_page"]) =>
|
|
{
|
|
let mult = 1;
|
|
self.set_dirty(true);
|
|
self.movement = Some(PageMovement::PageDown(mult));
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["home_page"]) =>
|
|
{
|
|
self.set_dirty(true);
|
|
self.movement = Some(PageMovement::Home);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["end_page"]) =>
|
|
{
|
|
self.set_dirty(true);
|
|
self.movement = Some(PageMovement::End);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::GENERAL]["open_entry"]) =>
|
|
{
|
|
self.set_dirty(true);
|
|
self.mode = ViewMode::Action(UIDialog::new(
|
|
"select action",
|
|
vec![
|
|
(MailboxAction::Rename, "rename".into()),
|
|
(MailboxAction::Move, "move".into()),
|
|
(MailboxAction::Subscribe, "subscribe".into()),
|
|
(MailboxAction::Unsubscribe, "unsubscribe".into()),
|
|
],
|
|
true,
|
|
Some(Box::new(
|
|
move |id: ComponentId, results: &[MailboxAction]| {
|
|
Some(UIEvent::FinishedUIDialog(id, Box::new(results.to_vec())))
|
|
},
|
|
)),
|
|
context,
|
|
));
|
|
return true;
|
|
}
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
|| if let ViewMode::Action(ref s) = self.mode {
|
|
s.is_dirty()
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
fn set_dirty(&mut self, value: bool) {
|
|
self.dirty = value;
|
|
if let ViewMode::Action(ref mut s) = self.mode {
|
|
s.set_dirty(value);
|
|
}
|
|
}
|
|
|
|
fn kill(&mut self, uuid: ComponentId, context: &mut Context) {
|
|
debug_assert!(uuid == self.id);
|
|
context.replies.push_back(UIEvent::Action(Tab(Kill(uuid))));
|
|
}
|
|
|
|
fn shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
let mut map = ShortcutMaps::default();
|
|
|
|
map.insert(
|
|
Shortcuts::GENERAL,
|
|
context.settings.shortcuts.general.key_values(),
|
|
);
|
|
|
|
map
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
|
|
fn can_quit_cleanly(&mut self, _context: &Context) -> bool {
|
|
true
|
|
}
|
|
|
|
fn status(&self, context: &Context) -> String {
|
|
format!(
|
|
"{} {} entries",
|
|
context.accounts[&self.account_hash].name(),
|
|
self.entries.len()
|
|
)
|
|
}
|
|
}
|