1192 lines
45 KiB
Rust
1192 lines
45 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 std::cmp;
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use melib::{
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utils::datetime::{timestamp_to_string, UnixTimestamp},
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Address,
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};
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use super::*;
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use crate::components::PageMovement;
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#[derive(Debug)]
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struct ThreadEntry {
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index: (usize, ThreadNodeHash, usize),
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/// (indentation, thread_node index, line number in listing)
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indentation: usize,
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msg_hash: EnvelopeHash,
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seen: bool,
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dirty: bool,
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hidden: bool,
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heading: String,
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timestamp: UnixTimestamp,
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mailview: Box<MailView>,
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}
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#[derive(Clone, Copy, Debug, Default)]
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pub enum ThreadViewFocus {
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#[default]
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None,
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Thread,
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MailView,
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}
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#[derive(Debug, Default)]
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pub struct ThreadView {
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new_cursor_pos: usize,
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cursor_pos: usize,
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expanded_pos: usize,
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new_expanded_pos: usize,
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reversed: bool,
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coordinates: (AccountHash, MailboxHash, EnvelopeHash),
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thread_group: ThreadHash,
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focus: ThreadViewFocus,
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entries: Vec<ThreadEntry>,
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visible_entries: Vec<Vec<usize>>,
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//indentation_colors: [ThemeAttribute; 6],
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use_color: bool,
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horizontal: Option<bool>,
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movement: Option<PageMovement>,
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dirty: bool,
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content: Screen<Virtual>,
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id: ComponentId,
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}
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impl ThreadView {
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/// @coordinates: (account index, mailbox_hash, root set thread_node index)
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/// @expanded_hash: optional position of expanded entry when we render the
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/// ThreadView.
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/// default: expanded message is the last one.
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/// @context: current context
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pub fn new(
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coordinates: (AccountHash, MailboxHash, EnvelopeHash),
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thread_group: ThreadHash,
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expanded_hash: Option<EnvelopeHash>,
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go_to_first_unread: bool,
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focus: Option<ThreadViewFocus>,
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context: &mut Context,
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) -> Self {
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let mut view = Self {
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reversed: false,
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coordinates,
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thread_group,
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focus: focus.unwrap_or_default(),
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entries: Vec::new(),
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cursor_pos: 1,
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new_cursor_pos: 0,
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dirty: true,
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id: ComponentId::default(),
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//indentation_colors: [
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// crate::conf::value(context, "mail.view.thread.indentation.a"),
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// crate::conf::value(context, "mail.view.thread.indentation.b"),
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// crate::conf::value(context, "mail.view.thread.indentation.c"),
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// crate::conf::value(context, "mail.view.thread.indentation.d"),
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// crate::conf::value(context, "mail.view.thread.indentation.e"),
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// crate::conf::value(context, "mail.view.thread.indentation.f"),
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//],
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use_color: context.settings.terminal.use_color(),
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horizontal: None,
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..Default::default()
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};
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view.initiate(expanded_hash, go_to_first_unread, context);
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view.new_cursor_pos = view.new_expanded_pos;
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view
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}
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pub fn update(&mut self, context: &mut Context) {
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if self.entries.is_empty() {
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return;
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}
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let old_entries = std::mem::take(&mut self.entries);
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let old_focused_entry = if self.entries.len() > self.cursor_pos {
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Some(self.entries.remove(self.cursor_pos))
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} else {
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None
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};
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let old_expanded_entry = if self.entries.len() > self.expanded_pos {
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Some(self.entries.remove(self.expanded_pos))
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} else {
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None
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};
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let expanded_hash = old_expanded_entry.as_ref().map(|e| e.msg_hash);
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self.initiate(expanded_hash, false, context);
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let mut old_cursor = 0;
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let mut new_cursor = 0;
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loop {
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if old_cursor >= old_entries.len() || new_cursor >= self.entries.len() {
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break;
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}
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if old_entries[old_cursor].msg_hash == self.entries[new_cursor].msg_hash
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|| old_entries[old_cursor].index == self.entries[new_cursor].index
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|| old_entries[old_cursor].heading == self.entries[new_cursor].heading
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{
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self.entries[new_cursor].hidden = old_entries[old_cursor].hidden;
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old_cursor += 1;
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}
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new_cursor += 1;
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self.recalc_visible_entries();
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}
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if let Some(old_focused_entry) = old_focused_entry {
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if let Some(new_entry_idx) = self.entries.iter().position(|e| {
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e.msg_hash == old_focused_entry.msg_hash
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|| (e.index.1 == old_focused_entry.index.1
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&& e.index.2 == old_focused_entry.index.2)
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}) {
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self.cursor_pos = new_entry_idx;
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}
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}
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if let Some(old_expanded_entry) = old_expanded_entry {
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if let Some(new_entry_idx) = self.entries.iter().position(|e| {
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e.msg_hash == old_expanded_entry.msg_hash
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|| (e.index.1 == old_expanded_entry.index.1
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&& e.index.2 == old_expanded_entry.index.2)
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}) {
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self.expanded_pos = new_entry_idx;
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}
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}
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self.set_dirty(true);
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}
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fn initiate(
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&mut self,
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expanded_hash: Option<EnvelopeHash>,
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go_to_first_unread: bool,
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context: &mut Context,
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) {
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#[inline(always)]
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fn make_entry(
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i: (usize, ThreadNodeHash, usize),
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(account_hash, mailbox_hash, msg_hash): (AccountHash, MailboxHash, EnvelopeHash),
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seen: bool,
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initialize_now: bool,
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timestamp: UnixTimestamp,
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context: &mut Context,
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) -> ThreadEntry {
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let (ind, _, _) = i;
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ThreadEntry {
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index: i,
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indentation: ind,
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mailview: Box::new(MailView::new(
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Some((account_hash, mailbox_hash, msg_hash)),
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initialize_now,
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context,
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)),
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msg_hash,
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seen,
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dirty: true,
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hidden: false,
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heading: String::new(),
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timestamp,
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}
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}
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let collection = context.accounts[&self.coordinates.0].collection.clone();
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let threads = collection.get_threads(self.coordinates.1);
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if !threads.groups.contains_key(&self.thread_group) {
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return;
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}
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let (account_hash, mailbox_hash, _) = self.coordinates;
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// Find out how many entries there are going to be, and prioritize
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// initialization to the open entry and the most recent ones.
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//
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// This helps skip initializing the whole thread at once, which will make the UI
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// loading slower.
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//
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// This won't help at all if the latest entry is a reply to an older entry but
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// oh well.
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let mut total_entries = vec![];
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for (_, thread_node_hash) in threads.thread_iter(self.thread_group) {
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if let Some(msg_hash) = threads.thread_nodes()[&thread_node_hash].message() {
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if Some(msg_hash) == expanded_hash {
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continue;
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}
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let env_ref = collection.get_env(msg_hash);
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total_entries.push((msg_hash, env_ref.timestamp));
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};
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}
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total_entries.sort_by_key(|e| cmp::Reverse(e.1));
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let tokens = f64::from(u32::try_from(total_entries.len()).unwrap_or(0)) * 0.29;
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let tokens = tokens.ceil() as usize;
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total_entries.truncate(tokens);
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// Now, only the expanded envelope plus the ones that remained in total_entries
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// (around 30% of the total messages in the thread) will be scheduled
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// for loading immediately. The others will be lazily loaded when the
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// user opens them for reading.
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let thread_iter = threads.thread_iter(self.thread_group);
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self.entries.clear();
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let mut earliest_unread = 0;
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let mut earliest_unread_entry = 0;
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for (line, (ind, thread_node_hash)) in thread_iter.enumerate() {
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let entry = if let Some(msg_hash) = threads.thread_nodes()[&thread_node_hash].message()
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{
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let (is_seen, timestamp) = {
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let env_ref = collection.get_env(msg_hash);
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if !env_ref.is_seen()
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&& (earliest_unread == 0 || env_ref.timestamp < earliest_unread)
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{
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earliest_unread = env_ref.timestamp;
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earliest_unread_entry = self.entries.len();
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}
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(env_ref.is_seen(), env_ref.timestamp)
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};
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let initialize_now = if total_entries.is_empty() {
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false
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} else {
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// ExtractIf but it hasn't been stabilized yet.
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// https://doc.rust-lang.org/std/vec/struct.Vec.html#method.extract_if
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let mut i = 0;
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let mut result = false;
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while i < total_entries.len() {
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if total_entries[i].0 == msg_hash {
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total_entries.remove(i);
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result = true;
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break;
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} else {
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i += 1;
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}
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}
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result
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};
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make_entry(
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(ind, thread_node_hash, line),
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(account_hash, mailbox_hash, msg_hash),
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is_seen,
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initialize_now || expanded_hash == Some(msg_hash),
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timestamp,
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context,
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)
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} else {
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continue;
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};
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match expanded_hash {
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Some(expanded_hash) if expanded_hash == entry.msg_hash => {
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self.new_expanded_pos = self.entries.len();
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self.expanded_pos = self.new_expanded_pos + 1;
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}
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_ => {}
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}
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self.entries.push(entry);
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}
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if expanded_hash.is_none() {
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self.new_expanded_pos = self
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.entries
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.iter()
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.enumerate()
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.reduce(|a, b| if a.1.timestamp > b.1.timestamp { a } else { b })
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.map(|el| el.0)
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.unwrap_or(0);
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self.expanded_pos = self.new_expanded_pos + 1;
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}
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if go_to_first_unread && earliest_unread > 0 {
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self.new_expanded_pos = earliest_unread_entry;
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self.expanded_pos = earliest_unread_entry + 1;
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}
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let height = self.entries.len();
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let mut width = 0;
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let mut highlight_reply_subjects: Vec<Option<usize>> =
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Vec::with_capacity(self.entries.len());
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for e in &mut self.entries {
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let envelope: EnvelopeRef = context.accounts[&self.coordinates.0]
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.collection
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.get_env(e.msg_hash);
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let thread_node = &threads.thread_nodes()[&e.index.1];
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let from = Address::display_name_slice(envelope.from());
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let date = timestamp_to_string(envelope.date(), Some("%Y-%m-%d %H:%M\0"), true);
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e.heading = if thread_node.show_subject() {
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let subject = envelope.subject();
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highlight_reply_subjects.push(Some(subject.grapheme_width()));
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format!(
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"{date} {subject:`>indent$} {from}",
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indent = 2 * e.index.0 + subject.grapheme_width(),
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)
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} else {
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highlight_reply_subjects.push(None);
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format!(
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"{date} {from:`>indent$}",
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indent = 2 * e.index.0 + from.grapheme_width()
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)
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};
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width = width.max(e.heading.grapheme_width() + 1);
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}
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if !self.content.resize_with_context(width, height, context) {
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return;
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}
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let theme_default = crate::conf::value(context, "theme_default");
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let highlight_theme = crate::conf::value(context, "highlight");
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if self.reversed {
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for (y, e) in self.entries.iter().rev().enumerate() {
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{
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let area = self
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.content
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.area()
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.skip_rows(y)
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.take(e.heading.grapheme_width() + 1, height - 1);
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self.content.grid_mut().write_string(
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&e.heading,
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if e.seen {
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theme_default.fg
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} else {
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highlight_theme.fg
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},
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if e.seen {
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theme_default.bg
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} else {
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highlight_theme.bg
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},
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theme_default.attrs,
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area,
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None,
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);
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}
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if highlight_reply_subjects[y].is_some() {
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let area = self.content.area().skip_rows(y).take_rows(1);
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self.content.grid_mut().change_theme(area, highlight_theme);
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}
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}
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} else {
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for (y, e) in self.entries.iter().enumerate() {
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{
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let area = self
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.content
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.area()
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.skip_rows(y)
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.take(e.heading.grapheme_width(), height - 1);
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self.content.grid_mut().write_string(
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&e.heading,
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if e.seen {
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theme_default.fg
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} else {
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highlight_theme.fg
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},
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if e.seen {
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theme_default.bg
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} else {
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highlight_theme.bg
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},
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theme_default.attrs,
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area,
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None,
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);
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}
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if highlight_reply_subjects[y].is_some() {
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let area = self.content.area().skip_rows(y).take(width - 2, y);
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self.content.grid_mut().change_theme(area, highlight_theme);
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}
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}
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}
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self.visible_entries = vec![(0..self.entries.len()).collect()];
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}
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fn highlight_line(
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&self,
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grid: &mut CellBuffer,
|
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dest_area: Area,
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src_area: Area,
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idx: usize,
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context: &Context,
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) {
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let visibles: Vec<&usize> = self.visible_entries.iter().flat_map(|v| v.iter()).collect();
|
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if idx == *visibles[self.cursor_pos] {
|
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let theme_default = crate::conf::value(context, "theme_default");
|
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let bg_color = crate::conf::value(context, "highlight").bg;
|
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let attrs = if self.use_color {
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theme_default.attrs
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} else {
|
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Attr::REVERSE
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};
|
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grid.change_theme(
|
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dest_area,
|
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ThemeAttribute {
|
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fg: theme_default.fg,
|
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bg: bg_color,
|
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attrs,
|
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},
|
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);
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return;
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}
|
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grid.copy_area(self.content.grid(), dest_area, src_area);
|
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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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if self.entries.is_empty() {
|
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context.dirty_areas.push_back(area);
|
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return;
|
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}
|
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let height = self.content.area().height();
|
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if height == 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 = area.height();
|
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if rows == 0 {
|
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context.dirty_areas.push_back(area);
|
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return;
|
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}
|
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if let Some(mvm) = self.movement.take() {
|
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match mvm {
|
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PageMovement::Up(amount) => {
|
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self.new_cursor_pos = self.new_cursor_pos.saturating_sub(amount);
|
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}
|
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PageMovement::PageUp(multiplier) => {
|
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self.new_cursor_pos = self.new_cursor_pos.saturating_sub(rows * multiplier);
|
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}
|
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PageMovement::Down(amount) => {
|
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if self.new_cursor_pos + amount + 1 < height {
|
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self.new_cursor_pos += amount;
|
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} else if self.new_cursor_pos + amount > height {
|
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self.new_cursor_pos = height - 1;
|
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} else {
|
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self.new_cursor_pos = (height / rows) * rows;
|
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}
|
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}
|
|
PageMovement::PageDown(multiplier) => {
|
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if self.new_cursor_pos + rows * multiplier + 1 < height {
|
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self.new_cursor_pos += rows * multiplier;
|
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} else {
|
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self.new_cursor_pos = (height / rows) * rows;
|
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}
|
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}
|
|
PageMovement::Right(_) | PageMovement::Left(_) => {}
|
|
PageMovement::Home => {
|
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self.new_cursor_pos = 0;
|
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}
|
|
PageMovement::End => {
|
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self.new_cursor_pos = (height / rows) * rows;
|
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}
|
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}
|
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}
|
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if self.new_cursor_pos >= self.entries.len() {
|
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self.new_cursor_pos = self.entries.len().saturating_sub(1);
|
|
}
|
|
let prev_page_no = (self.cursor_pos).wrapping_div(rows);
|
|
let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
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|
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let top_idx = page_no * rows;
|
|
// returns the **line** of an entry in the ThreadView grid.
|
|
let get_entry_area = |idx: usize| self.content.area().skip_rows(idx).take_rows(1);
|
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|
|
if self.dirty || (page_no != prev_page_no) {
|
|
grid.clear_area(area, crate::conf::value(context, "theme_default"));
|
|
let visibles: Vec<&usize> =
|
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self.visible_entries.iter().flat_map(|v| v.iter()).collect();
|
|
|
|
for (visible_entry_counter, v) in visibles.iter().skip(top_idx).take(rows).enumerate() {
|
|
if visible_entry_counter >= rows {
|
|
break;
|
|
}
|
|
let idx = *v;
|
|
|
|
grid.copy_area(
|
|
self.content.grid(),
|
|
area.skip_rows(visible_entry_counter).take_rows(1),
|
|
self.content.area().skip_rows(*idx).take_rows(1),
|
|
);
|
|
}
|
|
// If cursor position has changed, remove the highlight from the previous
|
|
// position and apply it in the new one.
|
|
self.cursor_pos = self.new_cursor_pos;
|
|
if self.cursor_pos + 1 > visibles.len() {
|
|
self.cursor_pos = visibles.len().saturating_sub(1);
|
|
}
|
|
let idx = *visibles[self.cursor_pos];
|
|
let src_area = get_entry_area(idx);
|
|
let dest_area = area.skip_rows(self.cursor_pos - top_idx).take_rows(1);
|
|
|
|
self.highlight_line(grid, dest_area, src_area, idx, context);
|
|
if rows < visibles.len() {
|
|
ScrollBar::default().set_show_arrows(true).draw(
|
|
grid,
|
|
area.nth_col(area.width().saturating_sub(1)),
|
|
context,
|
|
self.cursor_pos,
|
|
rows,
|
|
visibles.len(),
|
|
);
|
|
}
|
|
if top_idx + rows > visibles.len() {
|
|
grid.clear_area(
|
|
area.skip_rows(visibles.len() - top_idx),
|
|
crate::conf::value(context, "theme_default"),
|
|
);
|
|
}
|
|
} else {
|
|
let old_cursor_pos = self.cursor_pos;
|
|
self.cursor_pos = self.new_cursor_pos;
|
|
// If cursor position has changed, remove the highlight from the previous
|
|
// position and apply it in the new one.
|
|
let visibles: Vec<&usize> =
|
|
self.visible_entries.iter().flat_map(|v| v.iter()).collect();
|
|
for &idx in &[old_cursor_pos, self.cursor_pos] {
|
|
let entry_idx = *visibles[idx];
|
|
let src_area = get_entry_area(entry_idx);
|
|
let dest_area = area.skip_rows(visibles[..idx].len() - top_idx).take_rows(1);
|
|
|
|
self.highlight_line(grid, dest_area, src_area, entry_idx, context);
|
|
if rows < visibles.len() {
|
|
ScrollBar::default().set_show_arrows(true).draw(
|
|
grid,
|
|
area.nth_col(area.width().saturating_sub(1)),
|
|
context,
|
|
self.cursor_pos,
|
|
rows,
|
|
visibles.len(),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
|
|
fn draw_vert(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if self.entries.is_empty() {
|
|
return;
|
|
}
|
|
let mid = self.content.area().width().min(area.width() / 2);
|
|
|
|
let theme_default = crate::conf::value(context, "theme_default");
|
|
// First draw the thread subject on the first row
|
|
if self.dirty {
|
|
grid.clear_area(area, theme_default);
|
|
let account = &context.accounts[&self.coordinates.0];
|
|
let threads = account.collection.get_threads(self.coordinates.1);
|
|
let thread_root = threads.thread_iter(self.thread_group).next().unwrap().1;
|
|
let thread_node = &threads.thread_nodes()[&thread_root];
|
|
let i = thread_node.message().unwrap_or_else(|| {
|
|
let mut iter_ptr = thread_node.children()[0];
|
|
while threads.thread_nodes()[&iter_ptr].message().is_none() {
|
|
iter_ptr = threads.thread_nodes()[&iter_ptr].children()[0];
|
|
}
|
|
threads.thread_nodes()[&iter_ptr].message().unwrap()
|
|
});
|
|
let envelope: EnvelopeRef = account.collection.get_env(i);
|
|
|
|
let (_, y) = grid.write_string(
|
|
&envelope.subject(),
|
|
theme_default.fg,
|
|
theme_default.bg,
|
|
theme_default.attrs,
|
|
area,
|
|
Some(0),
|
|
);
|
|
context.dirty_areas.push_back(area);
|
|
grid.clear_area(area.nth_col(mid), theme_default);
|
|
grid.clear_area(area.skip(mid, y + 1), theme_default);
|
|
};
|
|
let area = area.skip_rows(2);
|
|
let (width, height) = self.content.area().size();
|
|
if height == 0 || width == 0 {
|
|
return;
|
|
}
|
|
|
|
match self.focus {
|
|
ThreadViewFocus::None => {
|
|
self.draw_list(grid, area.take_cols(mid.saturating_sub(1)), context);
|
|
self.entries[self.new_expanded_pos].mailview.draw(
|
|
grid,
|
|
area.skip_cols(mid + 1),
|
|
context,
|
|
);
|
|
}
|
|
ThreadViewFocus::Thread => {
|
|
grid.clear_area(area.skip_cols(mid + 1), theme_default);
|
|
self.draw_list(grid, area, context);
|
|
}
|
|
ThreadViewFocus::MailView => {
|
|
self.entries[self.new_expanded_pos]
|
|
.mailview
|
|
.draw(grid, area, context);
|
|
}
|
|
}
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
|
|
//fn draw_horz(&mut self, grid: &mut CellBuffer, area: Area, context: &mut
|
|
// Context) { if self.entries.is_empty() {
|
|
// return;
|
|
// }
|
|
// let upper_left = area.upper_left();
|
|
// let bottom_right = area.bottom_right();
|
|
// let total_rows = area.height();
|
|
|
|
// let pager_ratio = *mailbox_settings!(
|
|
// context[self.coordinates.0][&self.coordinates.1]
|
|
// .pager
|
|
// .pager_ratio
|
|
// );
|
|
// let mut bottom_entity_rows = (pager_ratio * total_rows) / 100;
|
|
|
|
// if bottom_entity_rows > total_rows {
|
|
// bottom_entity_rows = total_rows.saturating_sub(1);
|
|
// }
|
|
|
|
// let mut mid = get_y(upper_left) + total_rows - bottom_entity_rows;
|
|
// if mid >= get_y(bottom_right) {
|
|
// mid = get_y(bottom_right) / 2;
|
|
// }
|
|
// let mid = mid;
|
|
|
|
// let theme_default = crate::conf::value(context, "theme_default");
|
|
// // First draw the thread subject on the first row
|
|
// let y = {
|
|
// grid.clear_area(area, theme_default);
|
|
// let account = &context.accounts[&self.coordinates.0];
|
|
// let threads = account.collection.get_threads(self.coordinates.1);
|
|
// let thread_root =
|
|
// threads.thread_iter(self.thread_group).next().unwrap().1; let
|
|
// thread_node = &threads.thread_nodes()[&thread_root]; let i =
|
|
// thread_node.message().unwrap_or_else(|| { let mut iter_ptr =
|
|
// thread_node.children()[0]; while
|
|
// threads.thread_nodes()[&iter_ptr].message().is_none() {
|
|
// iter_ptr = threads.thread_nodes()[&iter_ptr].children()[0]; }
|
|
// threads.thread_nodes()[&iter_ptr].message().unwrap()
|
|
// });
|
|
// let envelope: EnvelopeRef = account.collection.get_env(i);
|
|
|
|
// let (x, y) = grid.write_string(
|
|
// &envelope.subject(),
|
|
// theme_default.fg,
|
|
// theme_default.bg,
|
|
// theme_default.attrs,
|
|
// area,
|
|
// Some(get_x(upper_left)),
|
|
// );
|
|
// for x in x..=get_x(bottom_right) {
|
|
// grid[(x, y)]
|
|
// .set_ch(' ')
|
|
// .set_fg(theme_default.fg)
|
|
// .set_bg(theme_default.bg);
|
|
// }
|
|
// context.dirty_areas.push_back(area);
|
|
// y + 2
|
|
// };
|
|
|
|
// for x in get_x(upper_left)..=get_x(bottom_right) {
|
|
// set_and_join_box(grid, (x, y - 1), BoxBoundary::Horizontal);
|
|
// grid[(x, y - 1)]
|
|
// .set_fg(theme_default.fg)
|
|
// .set_bg(theme_default.bg);
|
|
// }
|
|
|
|
// let (width, height) = self.content.area().size();
|
|
// if height == 0 || height == self.cursor_pos || width == 0 {
|
|
// return;
|
|
// }
|
|
|
|
// grid.clear_area(area.skip_rows(y).take_rows(mid + 1), theme_default);
|
|
|
|
// match self.focus {
|
|
// ThreadViewFocus::None => {
|
|
// let area = area.skip_rows(y).take_rows(mid);
|
|
// let rows = area.height() / 2;
|
|
// if rows == 0 {
|
|
// return;
|
|
// }
|
|
// let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
|
// let top_idx = page_no * rows;
|
|
|
|
// grid.copy_area(
|
|
// self.content.grid(),
|
|
// area,
|
|
// self.content.area().skip_rows(top_idx),
|
|
// );
|
|
// context.dirty_areas.push_back(area);
|
|
// }
|
|
// ThreadViewFocus::Thread => {
|
|
// let area = {
|
|
// let val = area.skip_rows(y);
|
|
// if val.height() < 20 {
|
|
// area
|
|
// } else {
|
|
// val
|
|
// }
|
|
// };
|
|
// let rows = area.height() / 2;
|
|
// if rows == 0 {
|
|
// return;
|
|
// }
|
|
// let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
|
// let top_idx = page_no * rows;
|
|
|
|
// grid.copy_area(
|
|
// self.content.grid(),
|
|
// area,
|
|
// self.content.area().skip_rows(top_idx),
|
|
// );
|
|
// context.dirty_areas.push_back(area);
|
|
// }
|
|
// ThreadViewFocus::MailView => { /* show only envelope */ }
|
|
// }
|
|
|
|
// match self.focus {
|
|
// ThreadViewFocus::None => {
|
|
// {
|
|
// let area = {
|
|
// let val = area.skip_rows(mid);
|
|
// if val.height() < 20 {
|
|
// area
|
|
// } else {
|
|
// val
|
|
// }
|
|
// };
|
|
// context.dirty_areas.push_back(area);
|
|
// for x in get_x(area.upper_left())..=get_x(area.bottom_right())
|
|
// { set_and_join_box(grid, (x, mid),
|
|
// BoxBoundary::Horizontal); grid[(x, mid)]
|
|
// .set_fg(theme_default.fg)
|
|
// .set_bg(theme_default.bg);
|
|
// }
|
|
// }
|
|
// {
|
|
// let area = area.skip_rows(y).take_rows(mid - 1);
|
|
// self.draw_list(grid, area, context);
|
|
// }
|
|
// let area = area.take_rows(mid);
|
|
// self.entries[self.new_expanded_pos]
|
|
// .mailview
|
|
// .draw(grid, area, context);
|
|
// }
|
|
// ThreadViewFocus::Thread => {
|
|
// self.dirty = true;
|
|
// self.draw_list(grid, area.skip_rows(y), context);
|
|
// }
|
|
// ThreadViewFocus::MailView => {
|
|
// self.entries[self.new_expanded_pos]
|
|
// .mailview
|
|
// .draw(grid, area, context);
|
|
// }
|
|
// }
|
|
//}
|
|
|
|
fn recalc_visible_entries(&mut self) {
|
|
if self.entries.is_empty() {
|
|
return;
|
|
}
|
|
if self
|
|
.entries
|
|
.iter_mut()
|
|
.fold(false, |flag, e| e.dirty || flag)
|
|
{
|
|
self.visible_entries = self
|
|
.entries
|
|
.iter()
|
|
.enumerate()
|
|
.fold(
|
|
(vec![Vec::new()], SmallVec::<[_; 8]>::new(), false),
|
|
|(mut visies, mut stack, is_prev_hidden), (idx, e)| {
|
|
match (e.hidden, is_prev_hidden) {
|
|
(true, false) => {
|
|
visies.last_mut().unwrap().push(idx);
|
|
stack.push(e.indentation);
|
|
(visies, stack, e.hidden)
|
|
}
|
|
(true, true)
|
|
if !stack.is_empty() && stack[stack.len() - 1] == e.indentation =>
|
|
{
|
|
visies.push(vec![idx]);
|
|
(visies, stack, e.hidden)
|
|
}
|
|
(true, true) => (visies, stack, e.hidden),
|
|
(false, true)
|
|
if stack[stack.len() - 1] >= e.indentation
|
|
&& stack.len() > 1
|
|
&& stack[stack.len() - 2] >= e.indentation =>
|
|
{
|
|
// [ref:FIXME]: pop all until e.indentation
|
|
visies.push(vec![idx]);
|
|
stack.pop();
|
|
(visies, stack, e.hidden)
|
|
}
|
|
(false, true) if stack[stack.len() - 1] >= e.indentation => {
|
|
visies.push(vec![idx]);
|
|
stack.pop();
|
|
(visies, stack, e.hidden)
|
|
}
|
|
(false, true) => (visies, stack, is_prev_hidden),
|
|
(false, false) => {
|
|
visies.last_mut().unwrap().push(idx);
|
|
(visies, stack, e.hidden)
|
|
}
|
|
}
|
|
},
|
|
)
|
|
.0;
|
|
}
|
|
if self.reversed {
|
|
self.visible_entries.reverse()
|
|
}
|
|
}
|
|
|
|
/// Current position in self.entries (not in drawn entries which might
|
|
/// exclude nonvisible ones)
|
|
fn current_pos(&self) -> Option<usize> {
|
|
self.visible_entries
|
|
.iter()
|
|
.flat_map(|v| v.iter())
|
|
.nth(self.new_cursor_pos)
|
|
.copied()
|
|
}
|
|
}
|
|
|
|
impl std::fmt::Display for ThreadView {
|
|
fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
|
|
if let Some(e) = self.entries.first() {
|
|
e.mailview.fmt(fmt)
|
|
} else {
|
|
write!(fmt, "view thread")
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Component for ThreadView {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if self.entries.is_empty() {
|
|
self.set_dirty(false);
|
|
}
|
|
if !self.is_dirty() {
|
|
return;
|
|
}
|
|
|
|
// If user has selected another mail to view, change to it
|
|
if self.new_expanded_pos != self.expanded_pos {
|
|
self.expanded_pos = self.new_expanded_pos;
|
|
}
|
|
|
|
if self.entries.len() == 1 {
|
|
self.entries[self.new_expanded_pos]
|
|
.mailview
|
|
.draw(grid, area, context);
|
|
} else {
|
|
self.draw_vert(grid, area, context);
|
|
}
|
|
self.set_dirty(false);
|
|
}
|
|
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
if matches!(
|
|
(&event, self.entries.is_empty()),
|
|
(UIEvent::Action(Listing(OpenInNewTab)), false)
|
|
) {
|
|
// Handle this before self.mailview does
|
|
let mut new_tab = Self::new(
|
|
self.coordinates,
|
|
self.thread_group,
|
|
Some(self.entries[self.expanded_pos].msg_hash),
|
|
false,
|
|
Some(self.focus),
|
|
context,
|
|
);
|
|
new_tab.set_dirty(true);
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::Action(Tab(New(Some(Box::new(new_tab))))));
|
|
return true;
|
|
}
|
|
|
|
if matches!(
|
|
self.focus,
|
|
ThreadViewFocus::None | ThreadViewFocus::MailView
|
|
) && !self.entries.is_empty()
|
|
&& self.entries[self.new_expanded_pos]
|
|
.mailview
|
|
.process_event(event, context)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
let shortcuts = self.shortcuts(context);
|
|
match *event {
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["toggle_layout"]) =>
|
|
{
|
|
if let Some(ref mut v) = self.horizontal {
|
|
*v = !*v;
|
|
} else {
|
|
self.horizontal = Some(false);
|
|
}
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["scroll_up"]) =>
|
|
{
|
|
if self.cursor_pos > 0 {
|
|
self.new_cursor_pos = self.new_cursor_pos.saturating_sub(1);
|
|
self.set_dirty(true);
|
|
}
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["scroll_down"]) =>
|
|
{
|
|
let height = self.visible_entries.iter().flat_map(|v| v.iter()).count();
|
|
if height > 0 && self.new_cursor_pos + 1 < height {
|
|
self.new_cursor_pos += 1;
|
|
self.set_dirty(true);
|
|
}
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["prev_page"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageUp(1));
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["next_page"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageDown(1));
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref k) if shortcut!(k == shortcuts[Shortcuts::GENERAL]["home_page"]) => {
|
|
self.movement = Some(PageMovement::Home);
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref k) if shortcut!(k == shortcuts[Shortcuts::GENERAL]["end_page"]) => {
|
|
self.movement = Some(PageMovement::End);
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref k)
|
|
if shortcut!(k == shortcuts[Shortcuts::GENERAL]["open_entry"]) =>
|
|
{
|
|
if self.entries.len() > 1 {
|
|
if let Some(new_expanded_pos) = self.current_pos() {
|
|
self.new_expanded_pos = new_expanded_pos;
|
|
self.expanded_pos = new_expanded_pos;
|
|
if matches!(self.focus, ThreadViewFocus::Thread) {
|
|
self.focus = ThreadViewFocus::None;
|
|
}
|
|
self.set_dirty(true);
|
|
}
|
|
}
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["toggle_mailview"]) =>
|
|
{
|
|
self.focus = match self.focus {
|
|
ThreadViewFocus::None | ThreadViewFocus::MailView => ThreadViewFocus::Thread,
|
|
ThreadViewFocus::Thread => ThreadViewFocus::None,
|
|
};
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["toggle_threadview"]) =>
|
|
{
|
|
self.focus = match self.focus {
|
|
ThreadViewFocus::None | ThreadViewFocus::Thread => ThreadViewFocus::MailView,
|
|
ThreadViewFocus::MailView => ThreadViewFocus::None,
|
|
};
|
|
self.set_dirty(true);
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["reverse_thread_order"]) =>
|
|
{
|
|
if !self.entries.is_empty() {
|
|
self.reversed = !self.reversed;
|
|
let expanded_hash = self.entries[self.expanded_pos].msg_hash;
|
|
self.initiate(Some(expanded_hash), false, context);
|
|
self.set_dirty(true);
|
|
}
|
|
true
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Shortcuts::THREAD_VIEW]["collapse_subtree"]) =>
|
|
{
|
|
if self.entries.is_empty() {
|
|
return true;
|
|
}
|
|
if let Some(current_pos) = self.current_pos() {
|
|
self.entries[current_pos].hidden = !self.entries[current_pos].hidden;
|
|
self.entries[current_pos].dirty = true;
|
|
{
|
|
let visible_entries: Vec<&usize> =
|
|
self.visible_entries.iter().flat_map(|v| v.iter()).collect();
|
|
// search_old_cursor_pos
|
|
self.new_cursor_pos =
|
|
(|entries: Vec<&usize>, x: usize| {
|
|
let mut low = 0;
|
|
let mut high = entries.len() - 1;
|
|
while low <= high {
|
|
let mid = low + (high - low) / 2;
|
|
if *entries[mid] == x {
|
|
return mid;
|
|
}
|
|
if x > *entries[mid] {
|
|
low = mid + 1;
|
|
} else {
|
|
high = mid - 1;
|
|
}
|
|
}
|
|
high + 1 //mid
|
|
})(visible_entries, self.cursor_pos);
|
|
}
|
|
self.cursor_pos = self.new_cursor_pos;
|
|
self.recalc_visible_entries();
|
|
self.set_dirty(true);
|
|
}
|
|
true
|
|
}
|
|
UIEvent::Resize | UIEvent::VisibilityChange(true) => {
|
|
self.set_dirty(true);
|
|
false
|
|
}
|
|
UIEvent::EnvelopeRename(ref old_hash, ref new_hash) => {
|
|
let account = &context.accounts[&self.coordinates.0];
|
|
for e in self.entries.iter_mut() {
|
|
if e.msg_hash == *old_hash {
|
|
e.msg_hash = *new_hash;
|
|
let seen: bool = account.collection.get_env(*new_hash).is_seen();
|
|
e.dirty = e.seen != seen;
|
|
e.seen = seen;
|
|
e.mailview.process_event(
|
|
&mut UIEvent::EnvelopeRename(*old_hash, *new_hash),
|
|
context,
|
|
);
|
|
self.set_dirty(true);
|
|
break;
|
|
}
|
|
}
|
|
false
|
|
}
|
|
UIEvent::EnvelopeUpdate(ref env_hash) => {
|
|
let account = &context.accounts[&self.coordinates.0];
|
|
for e in self.entries.iter_mut() {
|
|
if e.msg_hash == *env_hash {
|
|
let seen: bool = account.collection.get_env(*env_hash).is_seen();
|
|
e.dirty = e.seen != seen;
|
|
e.seen = seen;
|
|
e.mailview
|
|
.process_event(&mut UIEvent::EnvelopeUpdate(*env_hash), context);
|
|
self.set_dirty(true);
|
|
break;
|
|
}
|
|
}
|
|
false
|
|
}
|
|
UIEvent::Input(ref key) => {
|
|
return context
|
|
.settings
|
|
.shortcuts
|
|
.thread_view
|
|
.commands
|
|
.iter()
|
|
.any(|cmd| {
|
|
if cmd.shortcut == *key {
|
|
for cmd in &cmd.command {
|
|
context.replies.push_back(UIEvent::Command(cmd.to_string()));
|
|
}
|
|
return true;
|
|
}
|
|
false
|
|
})
|
|
}
|
|
_ => {
|
|
if self
|
|
.entries
|
|
.iter_mut()
|
|
.any(|entry| entry.mailview.process_event(event, context))
|
|
{
|
|
return true;
|
|
}
|
|
false
|
|
}
|
|
}
|
|
}
|
|
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
|| (!matches!(self.focus, ThreadViewFocus::Thread)
|
|
&& !self.entries.is_empty()
|
|
&& self.entries[self.new_expanded_pos].mailview.is_dirty())
|
|
}
|
|
|
|
fn set_dirty(&mut self, value: bool) {
|
|
self.dirty = value;
|
|
if let Some(entry) = self.entries.get_mut(self.new_expanded_pos) {
|
|
entry.mailview.set_dirty(value);
|
|
}
|
|
}
|
|
|
|
fn shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
let mut map = if !self.entries.is_empty() {
|
|
self.entries[self.new_expanded_pos]
|
|
.mailview
|
|
.shortcuts(context)
|
|
} else {
|
|
ShortcutMaps::default()
|
|
};
|
|
|
|
map.insert(
|
|
Shortcuts::GENERAL,
|
|
mailbox_settings!(
|
|
context[self.coordinates.0][&self.coordinates.1]
|
|
.shortcuts
|
|
.general
|
|
)
|
|
.key_values(),
|
|
);
|
|
map.insert(
|
|
Shortcuts::THREAD_VIEW,
|
|
mailbox_settings!(
|
|
context[self.coordinates.0][&self.coordinates.1]
|
|
.shortcuts
|
|
.thread_view
|
|
)
|
|
.key_values(),
|
|
);
|
|
|
|
map
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
|
|
fn kill(&mut self, id: ComponentId, context: &mut Context) {
|
|
debug_assert!(self.id == id);
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::Action(Tab(Kill(self.id))));
|
|
}
|
|
}
|