640 lines
22 KiB
Rust
640 lines
22 KiB
Rust
/*
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* meli - ui crate.
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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 components::utilities::PageMovement;
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//use melib::mailbox::backends::BackendOp;
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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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/// `ThreadView`.
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#[derive(Debug)]
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pub struct CompactListing {
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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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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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/// If we must redraw on next redraw event
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dirty: bool,
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/// If `self.view` exists or not.
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unfocused: bool,
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view: ThreadView,
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movement: Option<PageMovement>,
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}
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impl ListingTrait for CompactListing {
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fn coordinates(&self) -> (usize, usize, Option<EnvelopeHash>) {
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(self.cursor_pos.0, self.cursor_pos.1, None)
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}
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fn set_coordinates(&mut self, coordinates: (usize, usize, Option<EnvelopeHash>)) {
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self.new_cursor_pos = (coordinates.0, coordinates.1, 0);
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}
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}
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impl Default for CompactListing {
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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 CompactListing {
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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 CompactListing {
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/// Helper function to format entry strings for CompactListing */
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/* TODO: Make this configurable */
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fn make_entry_string(e: &Envelope, len: usize, idx: usize) -> String {
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if len > 0 {
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format!(
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"{} {} {:.85} ({})",
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idx,
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&CompactListing::format_date(e),
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e.subject(),
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len
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)
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} else {
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format!(
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"{} {} {:.85}",
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idx,
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&CompactListing::format_date(e),
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e.subject(),
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)
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}
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}
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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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CompactListing {
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cursor_pos: (0, 1, 0),
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new_cursor_pos: (0, 0, 0),
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length: 0,
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sort: (Default::default(), Default::default()),
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subsort: (SortField::Date, SortOrder::Desc),
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content,
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dirty: true,
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unfocused: false,
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view: ThreadView::default(),
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movement: None,
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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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let old_cursor_pos = self.cursor_pos;
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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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//TODO: store cursor_pos in each folder
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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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// Inform State that we changed the current folder view.
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context.replies.push_back(UIEvent {
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id: 0,
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event_type: UIEventType::RefreshMailbox((self.cursor_pos.0, self.cursor_pos.1)),
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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.cursor_pos.1) {
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Ok(_) => {}
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Err(_) => {
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self.content = CellBuffer::new(MAX_COLS, 1, Cell::with_char(' '));
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self.length = 0;
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write_string_to_grid(
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"Loading.",
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&mut self.content,
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Color::Default,
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Color::Default,
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((0, 0), (MAX_COLS - 1, 0)),
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false,
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);
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return;
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}
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}
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if old_cursor_pos == self.new_cursor_pos {
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self.view.update(context);
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} else {
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self.view = ThreadView::new(self.new_cursor_pos, None, context);
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}
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let mailbox = &context.accounts[self.cursor_pos.0][self.cursor_pos.1]
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.as_ref()
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.unwrap();
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self.length = mailbox.collection.threads.root_len();
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self.content = CellBuffer::new(MAX_COLS, self.length + 1, Cell::with_char(' '));
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if self.length == 0 {
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write_string_to_grid(
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&format!("Folder `{}` is empty.", mailbox.folder.name()),
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&mut self.content,
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Color::Default,
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Color::Default,
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((0, 0), (MAX_COLS - 1, 0)),
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false,
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);
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return;
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}
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let threads = &mailbox.collection.threads;
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threads.sort_by(self.sort, self.subsort, &mailbox.collection);
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for (idx, root_idx) in threads.root_iter().enumerate() {
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let thread_node = &threads.thread_nodes()[root_idx];
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let i = if let Some(i) = thread_node.message() {
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i
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} else {
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let mut iter_ptr = thread_node.children()[0];
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while threads.thread_nodes()[iter_ptr].message().is_none() {
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iter_ptr = threads.thread_nodes()[iter_ptr].children()[0];
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}
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threads.thread_nodes()[iter_ptr].message().unwrap()
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};
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if !mailbox.collection.contains_key(&i) {
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if cfg!(feature = "debug_log") {
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eprintln!("key = {}", i);
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}
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eprintln!(
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"name = {} {}",
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mailbox.name(),
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context.accounts[self.cursor_pos.0].name()
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);
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if cfg!(feature = "debug_log") {
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eprintln!("{:#?}", context.accounts);
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}
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panic!();
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}
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let root_envelope: &Envelope = &mailbox.collection[&i];
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let fg_color = if thread_node.has_unseen() {
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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 thread_node.has_unseen() {
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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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let (x, _) = write_string_to_grid(
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&CompactListing::make_entry_string(root_envelope, thread_node.len(), idx),
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&mut self.content,
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fg_color,
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bg_color,
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((0, idx), (MAX_COLS - 1, idx)),
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false,
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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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}
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}
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fn highlight_line(&self, grid: &mut CellBuffer, area: Area, idx: usize, context: &Context) {
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if idx == self.cursor_pos.2 {
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let mailbox = &context.accounts[self.cursor_pos.0][self.cursor_pos.1]
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.as_ref()
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.unwrap();
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if mailbox.is_empty() {
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return;
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}
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let threads = &mailbox.collection.threads;
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let thread_node = threads.root_set(idx);
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let thread_node = &threads.thread_nodes()[thread_node];
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let i = if let Some(i) = thread_node.message() {
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i
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} else {
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let mut iter_ptr = thread_node.children()[0];
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while threads.thread_nodes()[iter_ptr].message().is_none() {
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iter_ptr = threads.thread_nodes()[iter_ptr].children()[0];
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}
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threads.thread_nodes()[iter_ptr].message().unwrap()
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};
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let root_envelope: &Envelope = &mailbox.collection[&i];
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let fg_color = if !root_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 !root_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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return;
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}
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let (width, height) = self.content.size();
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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, idx), (width - 1, height - 1)),
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);
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}
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/// Draw the list of `Envelope`s.
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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(
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grid,
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&self.content,
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area,
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((0, 0), (MAX_COLS - 1, self.length)),
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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::PageUp => {
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self.new_cursor_pos.2 = self.new_cursor_pos.2.saturating_sub(rows);
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}
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PageMovement::PageDown => {
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/* This might "overflow" beyond the max_cursor_pos boundary if it's not yet
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* set. TODO: Rework the page up/down stuff
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*/
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if self.new_cursor_pos.2 + 2 * rows + 1 < self.length {
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self.new_cursor_pos.2 += rows;
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} else {
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self.new_cursor_pos.2 = self.length.saturating_sub(rows).saturating_sub(1);
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}
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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 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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if self.new_cursor_pos.2 >= self.length {
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self.new_cursor_pos.2 = self.length - 1;
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self.cursor_pos.2 = self.new_cursor_pos.2;
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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 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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_ => envelope.datetime().format("%Y-%m-%d %H:%M:%S").to_string(),
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}
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}
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}
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impl Component for CompactListing {
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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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/* Draw the entire list */
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self.draw_list(grid, area, context);
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} else {
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if self.length == 0 && self.dirty {
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clear_area(grid, area);
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context.dirty_areas.push_back(area);
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return;
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}
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self.view.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 self.unfocused && self.view.process_event(event, context) {
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return true;
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}
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let shortcuts = self.get_shortcuts(context);
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match event.event_type {
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UIEventType::Input(Key::Up) => {
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if self.cursor_pos.2 > 0 {
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self.new_cursor_pos.2 = self.new_cursor_pos.2.saturating_sub(1);
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self.dirty = true;
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}
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return true;
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}
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UIEventType::Input(Key::Down) => {
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if self.length > 0 && self.new_cursor_pos.2 < self.length - 1 {
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self.new_cursor_pos.2 += 1;
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self.dirty = true;
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}
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return true;
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}
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UIEventType::Input(ref k) if !self.unfocused && *k == shortcuts["open_thread"] => {
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self.view = ThreadView::new(self.cursor_pos, None, context);
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self.unfocused = true;
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self.dirty = true;
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return true;
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}
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UIEventType::Input(ref key) if *key == shortcuts["prev_page"] => {
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self.movement = Some(PageMovement::PageUp);
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self.set_dirty();
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}
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UIEventType::Input(ref key) if *key == shortcuts["next_page"] => {
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self.movement = Some(PageMovement::PageDown);
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self.set_dirty();
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}
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UIEventType::Input(ref k) if self.unfocused && *k == shortcuts["exit_thread"] => {
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self.unfocused = false;
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self.dirty = true;
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return true;
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}
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UIEventType::Input(Key::Char(k @ 'J')) | UIEventType::Input(Key::Char(k @ 'K')) => {
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let folder_length = context.accounts[self.cursor_pos.0].len();
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let accounts_length = context.accounts.len();
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match k {
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'J' if folder_length > 0 => {
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if self.new_cursor_pos.1 < folder_length - 1 {
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self.new_cursor_pos.1 = self.cursor_pos.1 + 1;
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self.refresh_mailbox(context);
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} else if accounts_length > 0 && self.new_cursor_pos.0 < accounts_length - 1
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{
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self.new_cursor_pos.0 = self.cursor_pos.0 + 1;
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self.new_cursor_pos.1 = 0;
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self.refresh_mailbox(context);
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}
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}
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'K' => {
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if self.cursor_pos.1 > 0 {
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self.new_cursor_pos.1 = self.cursor_pos.1 - 1;
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self.refresh_mailbox(context);
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} else if self.cursor_pos.0 > 0 {
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self.new_cursor_pos.0 = self.cursor_pos.0 - 1;
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self.new_cursor_pos.1 = 0;
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self.refresh_mailbox(context);
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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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UIEventType::Input(Key::Char(k @ 'h')) | UIEventType::Input(Key::Char(k @ 'l')) => {
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let accounts_length = context.accounts.len();
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match k {
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'h' if accounts_length > 0 && self.new_cursor_pos.0 < accounts_length - 1 => {
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self.new_cursor_pos.0 = self.cursor_pos.0 + 1;
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self.new_cursor_pos.1 = 0;
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self.refresh_mailbox(context);
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}
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'l' if self.cursor_pos.0 > 0 => {
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self.new_cursor_pos.0 = self.cursor_pos.0 - 1;
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self.new_cursor_pos.1 = 0;
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self.refresh_mailbox(context);
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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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UIEventType::RefreshMailbox(_) => {
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self.dirty = true;
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}
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UIEventType::MailboxUpdate((ref idxa, ref idxf))
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if *idxa == self.new_cursor_pos.0 && *idxf == self.new_cursor_pos.1 =>
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|
{
|
|
self.refresh_mailbox(context);
|
|
self.set_dirty();
|
|
}
|
|
UIEventType::StartupCheck(ref f)
|
|
if context.mailbox_hashes[f] == (self.new_cursor_pos.0, self.new_cursor_pos.1) =>
|
|
{
|
|
self.refresh_mailbox(context);
|
|
self.set_dirty();
|
|
}
|
|
UIEventType::ChangeMode(UIMode::Normal) => {
|
|
self.dirty = true;
|
|
}
|
|
UIEventType::Resize => {
|
|
self.dirty = true;
|
|
}
|
|
UIEventType::Action(ref action) => match action {
|
|
Action::ViewMailbox(idx) => {
|
|
self.new_cursor_pos.1 = *idx;
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
Action::SubSort(field, order) => {
|
|
if cfg!(feature = "debug_log") {
|
|
eprintln!("SubSort {:?} , {:?}", field, order);
|
|
}
|
|
self.subsort = (*field, *order);
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
Action::Sort(field, order) => {
|
|
if cfg!(feature = "debug_log") {
|
|
eprintln!("Sort {:?} , {:?}", field, order);
|
|
}
|
|
self.sort = (*field, *order);
|
|
self.refresh_mailbox(context);
|
|
return true;
|
|
}
|
|
_ => {}
|
|
},
|
|
UIEventType::Input(Key::Char('m')) if !self.unfocused => {
|
|
context.replies.push_back(UIEvent {
|
|
id: 0,
|
|
event_type: UIEventType::Action(Tab(NewDraft(self.cursor_pos.0))),
|
|
});
|
|
return true;
|
|
}
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
|| if self.unfocused {
|
|
self.view.is_dirty()
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
fn set_dirty(&mut self) {
|
|
if self.unfocused {
|
|
self.view.set_dirty();
|
|
}
|
|
self.dirty = true;
|
|
}
|
|
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMap {
|
|
let mut map = if self.unfocused {
|
|
self.view.get_shortcuts(context)
|
|
} else {
|
|
ShortcutMap::default()
|
|
};
|
|
|
|
let config_map = context.settings.shortcuts.compact_listing.key_values();
|
|
map.insert(
|
|
"open_thread",
|
|
if let Some(key) = config_map.get("open_thread") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('\n')
|
|
},
|
|
);
|
|
map.insert(
|
|
"prev_page",
|
|
if let Some(key) = config_map.get("prev_page") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::PageUp
|
|
},
|
|
);
|
|
map.insert(
|
|
"next_page",
|
|
if let Some(key) = config_map.get("next_page") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::PageDown
|
|
},
|
|
);
|
|
map.insert(
|
|
"exit_thread",
|
|
if let Some(key) = config_map.get("exit_thread") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('i')
|
|
},
|
|
);
|
|
map.insert(
|
|
"prev_folder",
|
|
if let Some(key) = config_map.get("prev_folder") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('J')
|
|
},
|
|
);
|
|
map.insert(
|
|
"next_folder",
|
|
if let Some(key) = config_map.get("next_folder") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('K')
|
|
},
|
|
);
|
|
map.insert(
|
|
"prev_account",
|
|
if let Some(key) = config_map.get("prev_account") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('h')
|
|
},
|
|
);
|
|
map.insert(
|
|
"next_account",
|
|
if let Some(key) = config_map.get("next_account") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('l')
|
|
},
|
|
);
|
|
map.insert(
|
|
"new_mail",
|
|
if let Some(key) = config_map.get("new_mail") {
|
|
(*key).clone()
|
|
} else {
|
|
Key::Char('m')
|
|
},
|
|
);
|
|
|
|
map
|
|
}
|
|
}
|