690 lines
24 KiB
Rust
690 lines
24 KiB
Rust
/*
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* meli
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*
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* Copyright 2017-2018 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::components::utilities::PageMovement;
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const MAX_COLS: usize = 500;
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/// A list of all mail (`Envelope`s) in a `Mailbox`. On `\n` it opens the `Envelope` content in a
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/// `MailView`.
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#[derive(Debug)]
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pub struct ThreadListing {
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/// (x, y, z): x is accounts, y is folders, z is index inside a folder.
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cursor_pos: (usize, usize, usize),
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new_cursor_pos: (usize, usize, usize),
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folder_hash: FolderHash,
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length: usize,
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sort: (SortField, SortOrder),
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subsort: (SortField, SortOrder),
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/// Cache current view.
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content: CellBuffer,
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row_updates: SmallVec<[ThreadHash; 8]>,
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locations: Vec<EnvelopeHash>,
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/// If we must redraw on next redraw event
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dirty: bool,
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/// If `self.view` is focused or not.
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unfocused: bool,
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initialised: bool,
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view: Option<MailView>,
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movement: Option<PageMovement>,
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id: ComponentId,
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}
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impl MailListingTrait for ThreadListing {
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fn row_updates(&mut self) -> &mut SmallVec<[ThreadHash; 8]> {
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&mut self.row_updates
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}
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fn get_focused_items(&self, _context: &Context) -> SmallVec<[ThreadHash; 8]> {
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SmallVec::new()
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}
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}
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impl ListingTrait for ThreadListing {
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fn coordinates(&self) -> (usize, usize) {
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(self.new_cursor_pos.0, self.new_cursor_pos.1)
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}
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fn set_coordinates(&mut self, coordinates: (usize, usize)) {
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self.new_cursor_pos = (coordinates.0, coordinates.1, 0);
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self.unfocused = false;
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self.locations.clear();
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self.row_updates.clear();
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self.initialised = false;
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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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if self.cursor_pos.1 != self.new_cursor_pos.1 || self.cursor_pos.0 != self.new_cursor_pos.0
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{
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self.refresh_mailbox(context);
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}
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let upper_left = upper_left!(area);
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let bottom_right = bottom_right!(area);
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if self.length == 0 {
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clear_area(grid, area);
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copy_area(grid, &self.content, area, ((0, 0), (MAX_COLS - 1, 0)));
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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.2 = self.new_cursor_pos.2.saturating_sub(amount);
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}
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PageMovement::PageUp(multiplier) => {
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self.new_cursor_pos.2 = self.new_cursor_pos.2.saturating_sub(rows * multiplier);
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}
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PageMovement::Down(amount) => {
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if self.new_cursor_pos.2 + amount + 1 < self.length {
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self.new_cursor_pos.2 += amount;
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} else {
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self.new_cursor_pos.2 = self.length - 1;
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}
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}
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PageMovement::PageDown(multiplier) => {
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if self.new_cursor_pos.2 + rows * multiplier + 1 < self.length {
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self.new_cursor_pos.2 += rows * multiplier;
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} else if self.new_cursor_pos.2 + rows * multiplier > self.length {
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self.new_cursor_pos.2 = self.length - 1;
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} else {
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self.new_cursor_pos.2 = (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.2 = 0;
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}
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PageMovement::End => {
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self.new_cursor_pos.2 = 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.2).wrapping_div(rows);
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let page_no = (self.new_cursor_pos.2).wrapping_div(rows);
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let top_idx = page_no * rows;
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if !self.initialised {
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self.initialised = false;
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copy_area(
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grid,
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&self.content,
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area,
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((0, top_idx), (MAX_COLS - 1, self.length)),
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);
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self.highlight_line(
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grid,
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(
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set_y(upper_left, get_y(upper_left) + (self.cursor_pos.2 % rows)),
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set_y(bottom_right, get_y(upper_left) + (self.cursor_pos.2 % rows)),
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),
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self.cursor_pos.2,
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context,
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);
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context.dirty_areas.push_back(area);
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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.2 != self.new_cursor_pos.2 && 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 in &[old_cursor_pos.2, self.new_cursor_pos.2] {
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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 = (
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set_y(upper_left, get_y(upper_left) + (*idx % rows)),
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set_y(bottom_right, get_y(upper_left) + (*idx % rows)),
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);
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self.highlight_line(grid, new_area, *idx, context);
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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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/* Page_no has changed, so draw new page */
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copy_area(
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grid,
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&self.content,
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area,
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((0, top_idx), (MAX_COLS - 1, self.length)),
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);
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self.highlight_line(
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grid,
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(
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set_y(upper_left, get_y(upper_left) + (self.cursor_pos.2 % rows)),
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set_y(bottom_right, get_y(upper_left) + (self.cursor_pos.2 % rows)),
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),
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self.cursor_pos.2,
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context,
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);
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context.dirty_areas.push_back(area);
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}
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fn highlight_line(&mut self, grid: &mut CellBuffer, area: Area, idx: usize, context: &Context) {
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let mailbox = if context.accounts[self.cursor_pos.0][self.cursor_pos.1].is_available() {
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context.accounts[self.cursor_pos.0][self.cursor_pos.1].unwrap()
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} else {
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return;
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};
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if mailbox.is_empty() || mailbox.len() <= idx {
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return;
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}
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if self.locations[idx] != 0 {
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let envelope: EnvelopeRef = context.accounts[self.cursor_pos.0]
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.collection
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.get_env(self.locations[idx]);
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let fg_color = if !envelope.is_seen() {
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Color::Byte(0)
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} else {
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Color::Default
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};
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let bg_color = if self.cursor_pos.2 == idx {
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Color::Byte(246)
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} else if !envelope.is_seen() {
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Color::Byte(251)
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} else if idx % 2 == 0 {
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Color::Byte(236)
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} else {
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Color::Default
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};
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change_colors(grid, area, fg_color, bg_color);
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}
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}
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fn set_movement(&mut self, mvm: PageMovement) {
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self.movement = Some(mvm);
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self.set_dirty(true);
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}
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}
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impl Default for ThreadListing {
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fn default() -> Self {
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Self::new()
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}
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}
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impl fmt::Display for ThreadListing {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "mail")
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}
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}
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impl ThreadListing {
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pub fn new() -> Self {
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let content = CellBuffer::new(0, 0, Cell::with_char(' '));
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ThreadListing {
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cursor_pos: (0, 1, 0),
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new_cursor_pos: (0, 0, 0),
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folder_hash: 0,
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length: 0,
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sort: (Default::default(), Default::default()),
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subsort: (Default::default(), Default::default()),
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content,
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row_updates: SmallVec::new(),
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locations: Vec::new(),
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dirty: true,
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unfocused: false,
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view: None,
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initialised: false,
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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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/// Fill the `self.content` `CellBuffer` with the contents of the account folder the user has
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/// chosen.
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fn refresh_mailbox(&mut self, context: &mut Context) {
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self.dirty = true;
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if !(self.cursor_pos.0 == self.new_cursor_pos.0
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&& self.cursor_pos.1 == self.new_cursor_pos.1)
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{
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self.cursor_pos.2 = 0;
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self.new_cursor_pos.2 = 0;
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}
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self.cursor_pos.1 = self.new_cursor_pos.1;
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self.cursor_pos.0 = self.new_cursor_pos.0;
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self.folder_hash = if let Some(h) = context.accounts[self.cursor_pos.0]
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.folders_order
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.get(self.cursor_pos.1)
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{
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*h
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} else {
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return;
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};
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// Get mailbox as a reference.
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//
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match context.accounts[self.cursor_pos.0].status(self.folder_hash) {
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Ok(_) => {}
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Err(_) => {
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let message: String =
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context.accounts[self.cursor_pos.0][self.folder_hash].to_string();
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self.content = CellBuffer::new(message.len(), 1, Cell::with_char(' '));
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self.length = 0;
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write_string_to_grid(
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message.as_str(),
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&mut self.content,
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Color::Default,
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Color::Default,
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Attr::Default,
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((0, 0), (MAX_COLS - 1, 0)),
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None,
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);
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return;
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}
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}
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let account = &context.accounts[self.cursor_pos.0];
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let mailbox = account[self.cursor_pos.1].unwrap();
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let threads = &account.collection.threads[&mailbox.folder.hash()];
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self.length = threads.len();
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self.locations.clear();
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if self.length == 0 {
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let message = format!("Folder `{}` is empty.", mailbox.folder.name());
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self.content = CellBuffer::new(message.len(), 1, Cell::with_char(' '));
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write_string_to_grid(
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&message,
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&mut self.content,
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Color::Default,
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Color::Default,
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Attr::Default,
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((0, 0), (message.len() - 1, 0)),
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None,
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);
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return;
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}
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self.content = CellBuffer::new(MAX_COLS, self.length + 1, Cell::with_char(' '));
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let mut indentations: Vec<bool> = Vec::with_capacity(6);
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let mut thread_idx = 0; // needed for alternate thread colors
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/* Draw threaded view. */
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threads.sort_by(self.sort, self.subsort, &account.collection.envelopes);
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let thread_nodes: &FnvHashMap<ThreadNodeHash, ThreadNode> = &threads.thread_nodes();
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let mut iter = threads.threads_iter().peekable();
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/* This is just a desugared for loop so that we can use .peek() */
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let mut idx = 0;
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while let Some((indentation, thread_node_hash, has_sibling)) = iter.next() {
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let thread_node = &thread_nodes[&thread_node_hash];
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if indentation == 0 {
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thread_idx += 1;
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}
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if thread_node.has_message() {
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let envelope: EnvelopeRef =
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account.collection.get_env(thread_node.message().unwrap());
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self.locations.push(envelope.hash());
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let fg_color = if !envelope.is_seen() {
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Color::Byte(0)
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} else {
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Color::Default
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};
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let bg_color = if !envelope.is_seen() {
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Color::Byte(251)
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} else if thread_idx % 2 == 0 {
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Color::Byte(236)
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} else {
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Color::Default
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};
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let (x, _) = write_string_to_grid(
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&ThreadListing::make_thread_entry(
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&envelope,
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idx,
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indentation,
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thread_node_hash,
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threads,
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&indentations,
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has_sibling,
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),
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&mut self.content,
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fg_color,
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bg_color,
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Attr::Default,
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((0, idx), (MAX_COLS - 1, idx)),
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None,
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);
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for x in x..MAX_COLS {
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self.content[(x, idx)].set_ch(' ');
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self.content[(x, idx)].set_bg(bg_color);
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}
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idx += 1;
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} else {
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continue;
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}
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match iter.peek() {
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Some((x, _, _)) if *x > indentation => {
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if has_sibling {
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indentations.push(true);
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} else {
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indentations.push(false);
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}
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}
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Some((x, _, _)) if *x < indentation => {
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for _ in 0..(indentation - *x) {
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indentations.pop();
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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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fn highlight_line_self(&mut self, idx: usize, context: &Context) {
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let mailbox = if context.accounts[self.cursor_pos.0][self.cursor_pos.1].is_available() {
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context.accounts[self.cursor_pos.0][self.cursor_pos.1].unwrap()
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} else {
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return;
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};
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if mailbox.is_empty() {
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return;
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}
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if self.locations[idx] != 0 {
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let envelope: EnvelopeRef = context.accounts[self.cursor_pos.0]
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.collection
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.get_env(self.locations[idx]);
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let fg_color = if !envelope.is_seen() {
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Color::Byte(0)
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} else {
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Color::Default
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};
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let bg_color = if !envelope.is_seen() {
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Color::Byte(251)
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} else if idx % 2 == 0 {
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Color::Byte(236)
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} else {
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Color::Default
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};
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change_colors(
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&mut self.content,
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((0, idx), (MAX_COLS - 1, idx)),
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fg_color,
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bg_color,
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);
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}
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}
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fn make_thread_entry(
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envelope: &Envelope,
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idx: usize,
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indent: usize,
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node_idx: ThreadNodeHash,
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threads: &Threads,
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indentations: &[bool],
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has_sibling: bool,
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//op: Box<BackendOp>,
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) -> String {
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let thread_node = &threads[&node_idx];
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let has_parent = thread_node.has_parent();
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let show_subject = thread_node.show_subject();
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let mut s = format!("{}{}{} ", idx, " ", ThreadListing::format_date(&envelope));
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for i in 0..indent {
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if indentations.len() > i && indentations[i] {
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s.push('│');
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} else if indentations.len() > i {
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s.push(' ');
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}
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if i > 0 {
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s.push(' ');
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}
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}
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if indent > 0 && (has_sibling || has_parent) {
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if has_sibling && has_parent {
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s.push('├');
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} else if has_sibling {
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s.push('┬');
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} else {
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s.push('â””');
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}
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s.push('─');
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s.push('>');
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}
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s.push_str(if envelope.has_attachments() {
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"📎"
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} else {
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""
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});
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if show_subject {
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s.push_str(&format!("{:.85}", envelope.subject()));
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}
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s
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}
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fn format_date(envelope: &Envelope) -> String {
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let d = std::time::UNIX_EPOCH + std::time::Duration::from_secs(envelope.date());
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let now: std::time::Duration = std::time::SystemTime::now()
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.duration_since(d)
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.unwrap_or_else(|_| std::time::Duration::new(std::u64::MAX, 0));
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match now.as_secs() {
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n if n < 10 * 60 * 60 => format!("{} hours ago{}", n / (60 * 60), " ".repeat(8)),
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n if n < 24 * 60 * 60 => format!("{} hours ago{}", n / (60 * 60), " ".repeat(7)),
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n if n < 4 * 24 * 60 * 60 => {
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format!("{} days ago{}", n / (24 * 60 * 60), " ".repeat(9))
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}
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_ => melib::datetime::timestamp_to_string(envelope.datetime(), None),
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}
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}
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}
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impl Component for ThreadListing {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if !self.unfocused {
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if !self.is_dirty() {
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return;
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}
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self.dirty = false;
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/* Draw the entire list */
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self.draw_list(grid, area, context);
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} else {
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self.cursor_pos = self.new_cursor_pos;
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let upper_left = upper_left!(area);
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let bottom_right = bottom_right!(area);
|
|
if self.length == 0 && self.dirty {
|
|
clear_area(grid, area);
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
|
|
/* Render the mail body in a pager, basically copy what HSplit does */
|
|
let total_rows = get_y(bottom_right) - get_y(upper_left);
|
|
let pager_ratio = context.runtime_settings.pager.pager_ratio;
|
|
let bottom_entity_rows = (pager_ratio * total_rows) / 100;
|
|
|
|
if bottom_entity_rows > total_rows {
|
|
clear_area(grid, area);
|
|
context.dirty_areas.push_back(area);
|
|
return;
|
|
}
|
|
|
|
let idx = self.cursor_pos.2;
|
|
|
|
let has_message: bool = self.locations[self.new_cursor_pos.2] > 0;
|
|
if !has_message {
|
|
self.dirty = false;
|
|
/* Draw the entire list */
|
|
return self.draw_list(grid, area, context);
|
|
}
|
|
|
|
/* Mark message as read */
|
|
let must_highlight = {
|
|
if self.length == 0 {
|
|
false
|
|
} else {
|
|
let account = &context.accounts[self.cursor_pos.0];
|
|
let envelope: EnvelopeRef = account
|
|
.collection
|
|
.get_env(self.locations[self.cursor_pos.2]);
|
|
envelope.is_seen()
|
|
}
|
|
};
|
|
|
|
if must_highlight {
|
|
self.highlight_line_self(idx, context);
|
|
}
|
|
|
|
let mid = get_y(upper_left) + total_rows - bottom_entity_rows;
|
|
self.draw_list(
|
|
grid,
|
|
(
|
|
upper_left,
|
|
(get_x(bottom_right), get_y(upper_left) + mid - 1),
|
|
),
|
|
context,
|
|
);
|
|
if self.length == 0 {
|
|
self.dirty = false;
|
|
return;
|
|
}
|
|
{
|
|
/* TODO: Move the box drawing business in separate functions */
|
|
if get_x(upper_left) > 0 && grid[(get_x(upper_left) - 1, mid)].ch() == VERT_BOUNDARY
|
|
{
|
|
grid[(get_x(upper_left) - 1, mid)].set_ch(LIGHT_VERTICAL_AND_RIGHT);
|
|
}
|
|
|
|
for i in get_x(upper_left)..=get_x(bottom_right) {
|
|
grid[(i, mid)].set_ch(HORZ_BOUNDARY);
|
|
}
|
|
context
|
|
.dirty_areas
|
|
.push_back((set_y(upper_left, mid), set_y(bottom_right, mid)));
|
|
}
|
|
// TODO: Make headers view configurable
|
|
|
|
if !self.dirty {
|
|
if let Some(v) = self.view.as_mut() {
|
|
v.draw(grid, (set_y(upper_left, mid + 1), bottom_right), context);
|
|
}
|
|
return;
|
|
}
|
|
|
|
let coordinates = (
|
|
self.cursor_pos.0,
|
|
self.cursor_pos.1,
|
|
self.locations[self.cursor_pos.2],
|
|
);
|
|
|
|
if let Some(ref mut v) = self.view {
|
|
v.update(coordinates);
|
|
} else {
|
|
self.view = Some(MailView::new(coordinates, None, None));
|
|
}
|
|
|
|
self.view.as_mut().unwrap().draw(
|
|
grid,
|
|
(set_y(upper_left, mid + 1), bottom_right),
|
|
context,
|
|
);
|
|
|
|
self.dirty = false;
|
|
}
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
if let Some(ref mut v) = self.view {
|
|
if v.process_event(event, context) {
|
|
return true;
|
|
}
|
|
}
|
|
match *event {
|
|
UIEvent::Input(Key::Char('\n')) if !self.unfocused => {
|
|
self.unfocused = true;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char('i')) if self.unfocused => {
|
|
self.unfocused = false;
|
|
self.dirty = true;
|
|
self.view = None;
|
|
return true;
|
|
}
|
|
UIEvent::MailboxUpdate((ref idxa, ref idxf))
|
|
if (*idxa, *idxf) == (self.new_cursor_pos.0, self.folder_hash) =>
|
|
{
|
|
self.refresh_mailbox(context);
|
|
self.set_dirty(true);
|
|
}
|
|
UIEvent::StartupCheck(ref f) if *f == self.folder_hash => {
|
|
self.refresh_mailbox(context);
|
|
self.set_dirty(true);
|
|
}
|
|
UIEvent::ChangeMode(UIMode::Normal) => {
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Resize => {
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Action(ref action) => match action {
|
|
Action::ViewMailbox(idx_m) => {
|
|
self.new_cursor_pos.1 = *idx_m;
|
|
self.dirty = true;
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
Action::SubSort(field, order) => {
|
|
debug!("SubSort {:?} , {:?}", field, order);
|
|
self.subsort = (*field, *order);
|
|
self.dirty = true;
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
Action::Sort(field, order) => {
|
|
debug!("Sort {:?} , {:?}", field, order);
|
|
self.sort = (*field, *order);
|
|
self.dirty = true;
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
_ => {}
|
|
},
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty || self.view.as_ref().map(|p| p.is_dirty()).unwrap_or(false)
|
|
}
|
|
fn set_dirty(&mut self, value: bool) {
|
|
if let Some(p) = self.view.as_mut() {
|
|
p.set_dirty(value);
|
|
};
|
|
self.dirty = value;
|
|
}
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
self.view
|
|
.as_ref()
|
|
.map(|p| p.get_shortcuts(context))
|
|
.unwrap_or_default()
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
}
|