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555 lines
20 KiB
Rust
555 lines
20 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 super::*;
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use crate::conf::accounts::MailboxEntry;
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use crate::melib::text_processing::TextProcessing;
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use melib::backends::AccountHash;
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use std::cmp;
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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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(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<5>,
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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 fmt::Display for MailboxManager {
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fn fmt(&self, f: &mut fmt::Formatter) -> 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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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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MailboxManager {
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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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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::new_v4(),
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}
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}
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fn initialize(&mut self, context: &mut 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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self.entries = account.mailbox_entries.clone();
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self.entries
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.sort_by(|_, a, _, b| a.ref_mailbox.path().cmp(&b.ref_mailbox.path()));
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self.set_dirty(true);
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let mut min_width = (
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"name".len(),
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"path".len(),
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"size".len(),
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"subscribed".len(),
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0,
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0,
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);
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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] =
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CellBuffer::new_with_context(min_width.0, self.length, None, context);
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/* path column */
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self.data_columns.columns[1] =
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CellBuffer::new_with_context(min_width.1, self.length, None, context);
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/* size column */
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self.data_columns.columns[2] =
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CellBuffer::new_with_context(min_width.2, self.length, None, context);
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/* subscribed column */
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self.data_columns.columns[3] =
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CellBuffer::new_with_context(min_width.3, self.length, None, context);
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for (idx, e) in self.entries.values().enumerate() {
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write_string_to_grid(
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e.name(),
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&mut self.data_columns.columns[0],
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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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((0, idx), (min_width.0, idx)),
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None,
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);
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write_string_to_grid(
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e.ref_mailbox.path(),
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&mut self.data_columns.columns[1],
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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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((0, idx), (min_width.1, idx)),
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None,
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);
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let (_unseen, total) = e.ref_mailbox.count().ok().unwrap_or((0, 0));
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write_string_to_grid(
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&total.to_string(),
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&mut self.data_columns.columns[2],
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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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((0, idx), (min_width.2, idx)),
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None,
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);
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write_string_to_grid(
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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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&mut self.data_columns.columns[3],
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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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((0, idx), (min_width.3, idx)),
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None,
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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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self.data_columns.columns[0] =
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CellBuffer::new_with_context(message.len(), self.length, None, context);
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write_string_to_grid(
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&message,
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&mut self.data_columns.columns[0],
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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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((0, 0), (message.len() - 1, 0)),
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None,
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);
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}
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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 (upper_left, bottom_right) = area;
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if self.length == 0 {
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clear_area(grid, area, self.theme_default);
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copy_area(
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grid,
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&self.data_columns.columns[0],
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area,
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((0, 0), pos_dec(self.data_columns.columns[0].size(), (1, 1))),
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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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let rows = get_y(bottom_right) - get_y(upper_left) + 1;
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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(_) | PageMovement::Left(_) => {}
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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 position and
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* 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 = nth_row_area(area, 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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change_colors(grid, new_area, row_attr.fg, row_attr.bg);
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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((width!(area), height!(area)), top_idx);
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clear_area(grid, 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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change_colors(
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grid,
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nth_row_area(area, self.cursor_pos % rows),
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self.highlight_theme.fg,
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self.highlight_theme.bg,
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);
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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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clear_area(
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grid,
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(
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pos_inc(upper_left, (0, self.length - top_idx)),
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bottom_right,
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),
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self.theme_default,
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);
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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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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}\" \"{mailbox_path_src}\" ",
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account_name = 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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None,
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err.to_string(),
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Some(crate::types::NotificationType::Error(err.kind)),
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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]
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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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None,
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err.to_string(),
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Some(crate::types::NotificationType::Error(err.kind)),
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));
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}
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}
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}
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}
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}
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return true;
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}
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_ => {}
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}
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return s.process_event(event, context);
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}
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let shortcuts = self.get_shortcuts(context);
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match event {
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UIEvent::AccountStatusChange(account_hash, msg)
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if *account_hash == self.account_hash =>
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{
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self.initialize(context);
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self.set_dirty(true);
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//self.menu_content.empty();
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context
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.replies
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.push_back(UIEvent::StatusEvent(StatusEvent::UpdateStatus(match msg {
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Some(msg) => format!("{} {}", self.get_status(context), msg),
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None => self.get_status(context),
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})));
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["scroll_up"]) =>
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{
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let amount = 1;
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self.movement = Some(PageMovement::Up(amount));
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self.set_dirty(true);
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["scroll_down"])
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&& self.cursor_pos < self.length.saturating_sub(1) =>
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{
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let amount = 1;
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self.set_dirty(true);
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self.movement = Some(PageMovement::Down(amount));
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["prev_page"]) =>
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{
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let mult = 1;
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self.set_dirty(true);
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self.movement = Some(PageMovement::PageUp(mult));
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["next_page"]) =>
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{
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let mult = 1;
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self.set_dirty(true);
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self.movement = Some(PageMovement::PageDown(mult));
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["home_page"]) =>
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{
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self.set_dirty(true);
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self.movement = Some(PageMovement::Home);
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["end_page"]) =>
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{
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self.set_dirty(true);
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self.movement = Some(PageMovement::End);
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return true;
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}
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UIEvent::Input(ref key)
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if shortcut!(key == shortcuts[Shortcuts::GENERAL]["open_entry"]) =>
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{
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self.set_dirty(true);
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self.mode = ViewMode::Action(UIDialog::new(
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"select action",
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vec![
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(MailboxAction::Rename, "rename".into()),
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(MailboxAction::Move, "move".into()),
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(MailboxAction::Subscribe, "subscribe".into()),
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(MailboxAction::Unsubscribe, "unsubscribe".into()),
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],
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true,
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Some(Box::new(
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move |id: ComponentId, results: &[MailboxAction]| {
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Some(UIEvent::FinishedUIDialog(id, Box::new(results.to_vec())))
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},
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)),
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context,
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));
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return true;
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}
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_ => {}
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}
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false
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}
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fn is_dirty(&self) -> bool {
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self.dirty
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|| if let ViewMode::Action(ref s) = self.mode {
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s.is_dirty()
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} else {
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false
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}
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}
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|
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fn set_dirty(&mut self, value: bool) {
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self.dirty = value;
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if let ViewMode::Action(ref mut s) = self.mode {
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s.set_dirty(value);
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}
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}
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|
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fn kill(&mut self, uuid: Uuid, context: &mut Context) {
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debug_assert!(uuid == self.id);
|
|
context.replies.push_back(UIEvent::Action(Tab(Kill(uuid))));
|
|
}
|
|
|
|
fn get_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 set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
|
|
fn can_quit_cleanly(&mut self, _context: &Context) -> bool {
|
|
true
|
|
}
|
|
|
|
fn get_status(&self, _context: &Context) -> String {
|
|
format!("{} entries", self.entries.len())
|
|
}
|
|
}
|