1174 lines
45 KiB
Rust
1174 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 super::*;
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use crate::components::PageMovement;
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use std::cmp;
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#[derive(Debug, Clone)]
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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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}
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#[derive(Debug, Default, Clone)]
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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, usize),
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thread_group: ThreadHash,
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mailview: MailView,
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show_mailview: bool,
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show_thread: bool,
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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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movement: Option<PageMovement>,
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dirty: bool,
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content: CellBuffer,
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id: ComponentId,
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}
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impl ThreadView {
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const DESCRIPTION: &'static str = "thread view";
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/*
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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 threadview. Default
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* expanded message is the last one.
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* context: current context
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*/
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pub fn new(
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coordinates: (AccountHash, MailboxHash, usize),
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thread_group: ThreadHash,
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expanded_hash: Option<ThreadNodeHash>,
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context: &Context,
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) -> Self {
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let mut view = ThreadView {
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reversed: false,
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coordinates,
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thread_group,
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mailview: MailView::default(),
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show_mailview: true,
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show_thread: true,
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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::new_v4(),
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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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..Default::default()
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};
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view.initiate(expanded_hash, 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: &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 = self.entries.clone();
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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.index.1);
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self.initiate(expanded_hash, 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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new_cursor += 1;
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} else {
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new_cursor += 1;
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}
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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(&mut self, expanded_hash: Option<ThreadNodeHash>, context: &Context) {
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let account = &context.accounts[&self.coordinates.0];
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let threads = account.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 thread_iter = threads.thread_group_iter(self.thread_group);
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self.entries.clear();
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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 seen: bool = account.collection.get_env(msg_hash).is_seen();
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self.make_entry((ind, thread_node_hash, line), msg_hash, seen)
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} else {
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continue;
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};
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self.entries.push(entry);
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match expanded_hash {
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Some(expanded_hash) if expanded_hash == thread_node_hash => {
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self.new_expanded_pos = self.entries.len().saturating_sub(1);
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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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}
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if expanded_hash.is_none() {
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self.new_expanded_pos = self.entries.len().saturating_sub(1);
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self.expanded_pos = self.new_expanded_pos + 1;
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}
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let height = 2 * self.entries.len() + 1;
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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 string = 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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" {} - {} {}{}",
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envelope.date_as_str(),
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envelope.field_from_to_string(),
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envelope.subject(),
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if envelope.has_attachments() {
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" 📎"
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} else {
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""
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},
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)
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} else {
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highlight_reply_subjects.push(None);
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format!(
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" {} - {}{}",
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envelope.date_as_str(),
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envelope.field_from_to_string(),
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if envelope.has_attachments() {
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" 📎"
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} else {
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""
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},
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)
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};
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e.heading = string;
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width = cmp::max(width, e.index.0 * 4 + e.heading.grapheme_width() + 2);
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}
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let mut content = CellBuffer::new_with_context(width, height, Cell::default(), context);
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if self.reversed {
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for (y, e) in self.entries.iter().rev().enumerate() {
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/* Box character drawing stuff */
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if y > 0 && content.get_mut(e.index.0 * 4, 2 * y - 1).is_some() {
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let index = (e.index.0 * 4, 2 * y - 1);
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if content[index].ch() == ' ' {
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let mut ctr = 1;
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while content.get(e.index.0 * 4 + ctr, 2 * y - 1).is_some() {
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if content[(e.index.0 * 4 + ctr, 2 * y - 1)].ch() != ' ' {
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break;
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}
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set_and_join_box(
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&mut content,
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(e.index.0 * 4 + ctr, 2 * y - 1),
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BoxBoundary::Horizontal,
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);
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ctr += 1;
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}
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set_and_join_box(&mut content, index, BoxBoundary::Horizontal);
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}
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}
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write_string_to_grid(
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&e.heading,
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&mut content,
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if e.seen {
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Color::Default
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} else {
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Color::Byte(0)
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},
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if e.seen {
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Color::Default
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} else {
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Color::Byte(251)
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},
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Attr::DEFAULT,
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(
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(e.index.0 * 4 + 1, 2 * y),
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(e.index.0 * 4 + e.heading.grapheme_width() + 1, height - 1),
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),
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None,
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);
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{
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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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if envelope.has_attachments() {
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content[(e.index.0 * 4 + e.heading.grapheme_width(), 2 * y)]
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.set_fg(Color::Byte(103));
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}
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}
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if let Some(len) = highlight_reply_subjects[y] {
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let index = e.index.0 * 4 + 1 + e.heading.grapheme_width() - len;
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let area = ((index, 2 * y), (width - 2, 2 * y));
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let fg_color = Color::Byte(33);
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let bg_color = Color::Default;
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change_colors(&mut content, area, fg_color, bg_color);
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}
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set_and_join_box(&mut content, (e.index.0 * 4, 2 * y), BoxBoundary::Vertical);
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set_and_join_box(
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&mut content,
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(e.index.0 * 4, 2 * y + 1),
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BoxBoundary::Vertical,
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);
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for i in ((e.index.0 * 4) + 1)..width - 1 {
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set_and_join_box(&mut content, (i, 2 * y + 1), BoxBoundary::Horizontal);
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}
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set_and_join_box(&mut content, (width - 1, 2 * y), BoxBoundary::Vertical);
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set_and_join_box(&mut content, (width - 1, 2 * y + 1), BoxBoundary::Vertical);
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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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/* Box character drawing stuff */
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let mut x = 0;
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for i in 0..e.index.0 {
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let att =
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self.indentation_colors[(i).wrapping_rem(self.indentation_colors.len())];
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change_colors(
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&mut content,
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((x, 2 * y), (x + 3, 2 * y + 1)),
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att.fg,
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att.bg,
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);
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x += 4;
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}
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if y > 0 && content.get_mut(e.index.0 * 4, 2 * y - 1).is_some() {
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let index = (e.index.0 * 4, 2 * y - 1);
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if content[index].ch() == ' ' {
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let mut ctr = 1;
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content[(e.index.0 * 4, 2 * y - 1)].set_bg(Color::Default);
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while content.get(e.index.0 * 4 + ctr, 2 * y - 1).is_some() {
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content[(e.index.0 * 4 + ctr, 2 * y - 1)].set_bg(Color::Default);
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if content[(e.index.0 * 4 + ctr, 2 * y - 1)].ch() != ' ' {
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break;
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}
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set_and_join_box(
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&mut content,
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(e.index.0 * 4 + ctr, 2 * y - 1),
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BoxBoundary::Horizontal,
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);
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ctr += 1;
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}
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set_and_join_box(&mut content, index, BoxBoundary::Horizontal);
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}
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}
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write_string_to_grid(
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&e.heading,
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&mut content,
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if e.seen {
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Color::Default
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} else {
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Color::Byte(0)
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},
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if e.seen {
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Color::Default
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} else {
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Color::Byte(251)
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},
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Attr::DEFAULT,
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(
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(e.index.0 * 4 + 1, 2 * y),
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(e.index.0 * 4 + e.heading.grapheme_width() + 1, height - 1),
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),
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None,
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);
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{
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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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if envelope.has_attachments() {
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content[(e.index.0 * 4 + e.heading.grapheme_width(), 2 * y)]
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.set_fg(Color::Byte(103));
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}
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}
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if let Some(_len) = highlight_reply_subjects[y] {
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let index = e.index.0 * 4 + 1;
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let area = ((index, 2 * y), (width - 2, 2 * y));
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let fg_color = Color::Byte(33);
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let bg_color = Color::Default;
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change_colors(&mut content, area, fg_color, bg_color);
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}
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set_and_join_box(&mut content, (e.index.0 * 4, 2 * y), BoxBoundary::Vertical);
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set_and_join_box(
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&mut content,
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(e.index.0 * 4, 2 * y + 1),
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BoxBoundary::Vertical,
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);
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for i in ((e.index.0 * 4) + 1)..width - 1 {
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set_and_join_box(&mut content, (i, 2 * y + 1), BoxBoundary::Horizontal);
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}
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set_and_join_box(&mut content, (width - 1, 2 * y), BoxBoundary::Vertical);
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set_and_join_box(&mut content, (width - 1, 2 * y + 1), BoxBoundary::Vertical);
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}
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for y in 0..height - 1 {
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set_and_join_box(&mut content, (width - 1, y), BoxBoundary::Vertical);
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}
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}
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self.content = content;
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self.visible_entries = vec![(0..self.entries.len()).collect()];
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}
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fn make_entry(
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&mut self,
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i: (usize, ThreadNodeHash, usize),
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msg_hash: EnvelopeHash,
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seen: bool,
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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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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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}
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}
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fn highlight_line(&self, grid: &mut CellBuffer, dest_area: Area, src_area: Area, idx: usize) {
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let visibles: Vec<&usize> = self
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.visible_entries
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.iter()
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.flat_map(|ref v| v.iter())
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.collect();
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if idx == *visibles[self.cursor_pos] {
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let fg_color = Color::Default;
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let bg_color = Color::Byte(246);
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let attrs = if self.use_color {
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Attr::DEFAULT
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} else {
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Attr::REVERSE
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};
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for row in grid.bounds_iter(dest_area) {
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for c in row {
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grid[c].set_fg(fg_color).set_bg(bg_color).set_attrs(attrs);
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}
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}
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change_colors(grid, dest_area, fg_color, bg_color);
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return;
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}
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copy_area(grid, &self.content, dest_area, src_area);
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}
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|
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/// draw the list
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fn draw_list(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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let (upper_left, bottom_right) = area;
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let (width, height) = self.content.size();
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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 = (get_y(bottom_right) - get_y(upper_left)).wrapping_div(2);
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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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}
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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(_) => {}
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PageMovement::Home => {
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self.new_cursor_pos = 0;
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}
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PageMovement::End => {
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self.new_cursor_pos = (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);
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}
|
|
let prev_page_no = (self.cursor_pos).wrapping_div(rows);
|
|
let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
|
|
|
let top_idx = page_no * rows;
|
|
/* This closure (written for code clarity, should be inlined by the compiler) returns the
|
|
* **line** of an entry in the ThreadView grid. */
|
|
let get_entry_area = |idx: usize, entries: &[ThreadEntry]| {
|
|
let entries = &entries;
|
|
let visual_indentation = entries[idx].index.0 * 4;
|
|
(
|
|
(visual_indentation, 2 * idx),
|
|
(
|
|
visual_indentation + entries[idx].heading.grapheme_width() + 1,
|
|
2 * idx,
|
|
),
|
|
)
|
|
};
|
|
|
|
if self.dirty || (page_no != prev_page_no) {
|
|
if page_no != prev_page_no {
|
|
clear_area(grid, area, crate::conf::value(context, "theme_default"));
|
|
}
|
|
let visibles: Vec<&usize> = self
|
|
.visible_entries
|
|
.iter()
|
|
.flat_map(|ref 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;
|
|
copy_area(
|
|
grid,
|
|
&self.content,
|
|
(
|
|
pos_inc(upper_left, (0, 2 * visible_entry_counter)), // dest_area
|
|
bottom_right,
|
|
),
|
|
(
|
|
(0, 2 * idx), //src_area
|
|
(width - 1, 2 * idx + 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, &self.entries) };
|
|
let visual_indentation = self.entries[idx].indentation * 4;
|
|
let dest_area = (
|
|
pos_inc(
|
|
upper_left,
|
|
(visual_indentation, 2 * (self.cursor_pos - top_idx)),
|
|
),
|
|
(
|
|
cmp::min(
|
|
get_x(bottom_right),
|
|
get_x(upper_left)
|
|
+ visual_indentation
|
|
+ self.entries[idx].heading.grapheme_width()
|
|
+ 1,
|
|
),
|
|
cmp::min(
|
|
get_y(bottom_right),
|
|
get_y(upper_left) + 2 * (self.cursor_pos - top_idx),
|
|
),
|
|
),
|
|
);
|
|
|
|
self.highlight_line(grid, dest_area, src_area, idx);
|
|
if rows < visibles.len() {
|
|
ScrollBar::default().draw(
|
|
grid,
|
|
(
|
|
upper_left!(area),
|
|
set_x(bottom_right, get_x(upper_left!(area)) + 1),
|
|
),
|
|
context,
|
|
self.cursor_pos,
|
|
rows,
|
|
visibles.len(),
|
|
);
|
|
}
|
|
self.dirty = false;
|
|
context.dirty_areas.push_back(area);
|
|
} 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(|ref 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, &self.entries) };
|
|
let visual_indentation = self.entries[entry_idx].indentation * 4;
|
|
let dest_area = (
|
|
pos_inc(
|
|
upper_left,
|
|
(visual_indentation, 2 * (visibles[..idx].len() - top_idx)),
|
|
),
|
|
(
|
|
cmp::min(
|
|
get_x(bottom_right),
|
|
get_x(upper_left)
|
|
+ visual_indentation
|
|
+ self.entries[entry_idx].heading.grapheme_width()
|
|
+ 1,
|
|
),
|
|
cmp::min(
|
|
get_y(bottom_right),
|
|
get_y(upper_left) + 2 * (visibles[..idx].len() - top_idx),
|
|
),
|
|
),
|
|
);
|
|
|
|
self.highlight_line(grid, dest_area, src_area, entry_idx);
|
|
if rows < visibles.len() {
|
|
ScrollBar::default().draw(
|
|
grid,
|
|
(
|
|
upper_left!(area),
|
|
set_x(bottom_right, get_x(upper_left!(area)) + 1),
|
|
),
|
|
context,
|
|
self.cursor_pos,
|
|
rows,
|
|
visibles.len(),
|
|
);
|
|
context.dirty_areas.push_back((
|
|
upper_left!(area),
|
|
set_x(bottom_right, get_x(upper_left!(area)) + 1),
|
|
));
|
|
}
|
|
|
|
let (upper_left, bottom_right) = dest_area;
|
|
context
|
|
.dirty_areas
|
|
.push_back((upper_left, (get_x(bottom_right), get_y(upper_left) + 1)));
|
|
}
|
|
}
|
|
}
|
|
|
|
fn draw_vert(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let upper_left = upper_left!(area);
|
|
|
|
let bottom_right = bottom_right!(area);
|
|
let mid = get_x(upper_left) + self.content.size().0;
|
|
|
|
/* First draw the thread subject on the first row */
|
|
let y = if self.dirty {
|
|
clear_area(grid, area, crate::conf::value(context, "theme_default"));
|
|
let account = &context.accounts[&self.coordinates.0];
|
|
let threads = account.collection.get_threads(self.coordinates.1);
|
|
let thread_root = threads
|
|
.thread_group_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) = write_string_to_grid(
|
|
&envelope.subject(),
|
|
grid,
|
|
Color::Byte(33),
|
|
Color::Default,
|
|
Attr::DEFAULT,
|
|
area,
|
|
Some(get_x(upper_left)),
|
|
);
|
|
for x in x..=get_x(bottom_right) {
|
|
grid[(x, y)].set_ch(' ');
|
|
grid[(x, y)].set_bg(Color::Default);
|
|
grid[(x, y)].set_fg(Color::Default);
|
|
}
|
|
context
|
|
.dirty_areas
|
|
.push_back((upper_left, set_y(bottom_right, y + 1)));
|
|
context
|
|
.dirty_areas
|
|
.push_back(((mid, y + 1), set_x(bottom_right, mid)));
|
|
clear_area(
|
|
grid,
|
|
((mid, y + 1), set_x(bottom_right, mid)),
|
|
crate::conf::value(context, "theme_default"),
|
|
);
|
|
y + 2
|
|
} else {
|
|
get_y(upper_left) + 2
|
|
};
|
|
let (width, height) = self.content.size();
|
|
if height == 0 || width == 0 {
|
|
return;
|
|
}
|
|
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(Color::Byte(33));
|
|
grid[(x, y - 1)].set_bg(Color::Default);
|
|
}
|
|
|
|
match (self.show_mailview, self.show_thread) {
|
|
(true, true) => {
|
|
self.draw_list(
|
|
grid,
|
|
(set_y(upper_left, y), set_x(bottom_right, mid - 1)),
|
|
context,
|
|
);
|
|
let upper_left = (mid + 1, get_y(upper_left) + y - 1);
|
|
self.mailview
|
|
.draw(grid, (upper_left, bottom_right), context);
|
|
}
|
|
(false, true) => {
|
|
clear_area(
|
|
grid,
|
|
((mid + 1, get_y(upper_left) + y - 1), bottom_right),
|
|
crate::conf::value(context, "theme_default"),
|
|
);
|
|
self.draw_list(grid, (set_y(upper_left, y), bottom_right), context);
|
|
}
|
|
(_, false) => {
|
|
self.mailview.draw(grid, area, context);
|
|
}
|
|
}
|
|
}
|
|
fn draw_horz(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let upper_left = upper_left!(area);
|
|
let bottom_right = bottom_right!(area);
|
|
let total_rows = height!(area);
|
|
|
|
let pager_ratio = context.runtime_settings.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;
|
|
|
|
/* First draw the thread subject on the first row */
|
|
let y = {
|
|
clear_area(grid, area, crate::conf::value(context, "theme_default"));
|
|
let account = &context.accounts[&self.coordinates.0];
|
|
let threads = account.collection.get_threads(self.coordinates.1);
|
|
let thread_root = threads
|
|
.thread_group_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) = write_string_to_grid(
|
|
&envelope.subject(),
|
|
grid,
|
|
Color::Byte(33),
|
|
Color::Default,
|
|
Attr::DEFAULT,
|
|
area,
|
|
Some(get_x(upper_left)),
|
|
);
|
|
for x in x..=get_x(bottom_right) {
|
|
grid[(x, y)].set_ch(' ');
|
|
grid[(x, y)].set_bg(Color::Default);
|
|
grid[(x, y)].set_fg(Color::Default);
|
|
}
|
|
context
|
|
.dirty_areas
|
|
.push_back((upper_left, set_y(bottom_right, y + 2)));
|
|
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(Color::Default);
|
|
grid[(x, y - 1)].set_bg(Color::Default);
|
|
}
|
|
|
|
let (width, height) = self.content.size();
|
|
if height == 0 || height == self.cursor_pos || width == 0 {
|
|
return;
|
|
}
|
|
|
|
clear_area(
|
|
grid,
|
|
(set_y(upper_left, y), set_y(bottom_right, mid + 1)),
|
|
crate::conf::value(context, "theme_default"),
|
|
);
|
|
let (width, height) = self.content.size();
|
|
|
|
match (self.show_mailview, self.show_thread) {
|
|
(true, true) => {
|
|
let area = (set_y(upper_left, y), set_y(bottom_right, mid));
|
|
let upper_left = upper_left!(area);
|
|
let bottom_right = bottom_right!(area);
|
|
|
|
let rows = (get_y(bottom_right).saturating_sub(get_y(upper_left) + 1)) / 2;
|
|
if rows == 0 {
|
|
return;
|
|
}
|
|
let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
|
let top_idx = page_no * rows;
|
|
|
|
copy_area(
|
|
grid,
|
|
&self.content,
|
|
area,
|
|
((0, 2 * top_idx), (width - 1, height - 1)),
|
|
);
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
(false, true) => {
|
|
let area = (set_y(upper_left, y), bottom_right);
|
|
let upper_left = upper_left!(area);
|
|
|
|
let rows = (get_y(bottom_right).saturating_sub(get_y(upper_left) + 1)) / 2;
|
|
if rows == 0 {
|
|
return;
|
|
}
|
|
let page_no = (self.new_cursor_pos).wrapping_div(rows);
|
|
let top_idx = page_no * rows;
|
|
copy_area(
|
|
grid,
|
|
&self.content,
|
|
area,
|
|
((0, 2 * top_idx), (width - 1, height - 1)),
|
|
);
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
(_, false) => { /* show only envelope */ }
|
|
}
|
|
|
|
match (self.show_mailview, self.show_thread) {
|
|
(true, true) => {
|
|
let area = (set_y(upper_left, mid), set_y(bottom_right, mid));
|
|
context.dirty_areas.push_back(area);
|
|
for x in get_x(upper_left)..=get_x(bottom_right) {
|
|
set_and_join_box(grid, (x, mid), BoxBoundary::Horizontal);
|
|
grid[(x, mid)].set_fg(Color::Default);
|
|
grid[(x, mid)].set_bg(Color::Default);
|
|
}
|
|
let area = (set_y(upper_left, y), set_y(bottom_right, mid - 1));
|
|
self.draw_list(grid, area, context);
|
|
self.mailview
|
|
.draw(grid, (set_y(upper_left, mid + 1), bottom_right), context);
|
|
}
|
|
(false, true) => {
|
|
self.dirty = true;
|
|
self.draw_list(grid, (set_y(upper_left, y), bottom_right), context);
|
|
}
|
|
(_, false) => {
|
|
self.mailview.draw(grid, area, context);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn recalc_visible_entries(&mut self) {
|
|
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 =>
|
|
{
|
|
//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) -> usize {
|
|
let visibles: Vec<&usize> = self
|
|
.visible_entries
|
|
.iter()
|
|
.flat_map(|ref v| v.iter())
|
|
.collect();
|
|
*visibles[self.new_cursor_pos]
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for ThreadView {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
write!(f, "view thread")
|
|
}
|
|
}
|
|
|
|
impl Component for ThreadView {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let total_cols = width!(area);
|
|
if self.entries.is_empty() {
|
|
self.dirty = false;
|
|
return;
|
|
}
|
|
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;
|
|
let coordinates = (
|
|
self.coordinates.0,
|
|
self.coordinates.1,
|
|
self.entries[self.current_pos()].msg_hash,
|
|
);
|
|
self.mailview.update(coordinates, context);
|
|
}
|
|
|
|
if self.entries.len() == 1 {
|
|
self.mailview.draw(grid, area, context);
|
|
self.dirty = false;
|
|
return;
|
|
}
|
|
|
|
if total_cols >= self.content.size().0 + 74 {
|
|
self.draw_vert(grid, area, context);
|
|
} else {
|
|
self.draw_horz(grid, area, context);
|
|
}
|
|
self.dirty = false;
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
match event {
|
|
UIEvent::Action(Listing(OpenInNewTab)) => {
|
|
/* Handle this before self.mailview does */
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::Action(Tab(New(Some(Box::new(self.clone()))))));
|
|
return true;
|
|
}
|
|
_ => {}
|
|
}
|
|
|
|
if self.show_mailview && self.mailview.process_event(event, context) {
|
|
return true;
|
|
}
|
|
|
|
let shortcuts = self.get_shortcuts(context);
|
|
match *event {
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["scroll_up"]) =>
|
|
{
|
|
if self.cursor_pos > 0 {
|
|
self.new_cursor_pos = self.new_cursor_pos.saturating_sub(1);
|
|
self.dirty = true;
|
|
}
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["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.dirty = true;
|
|
}
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["prev_page"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageUp(1));
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["next_page"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageDown(1));
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Input(ref key) if *key == Key::Home => {
|
|
self.movement = Some(PageMovement::Home);
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Input(ref key) if *key == Key::End => {
|
|
self.movement = Some(PageMovement::End);
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Input(Key::Char('\n')) => {
|
|
if self.entries.len() < 2 {
|
|
return true;
|
|
}
|
|
self.new_expanded_pos = self.current_pos();
|
|
self.show_mailview = true;
|
|
self.set_dirty(true);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["toggle_mailview"]) =>
|
|
{
|
|
self.show_mailview = !self.show_mailview;
|
|
self.set_dirty(true);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["toggle_threadview"]) =>
|
|
{
|
|
self.show_thread = !self.show_thread;
|
|
self.set_dirty(true);
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["reverse_thread_order"]) =>
|
|
{
|
|
self.reversed = !self.reversed;
|
|
let expanded_hash = self.entries[self.expanded_pos].index.1;
|
|
self.initiate(Some(expanded_hash), context);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[ThreadView::DESCRIPTION]["collapse_subtree"]) =>
|
|
{
|
|
let 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.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Resize => {
|
|
self.set_dirty(true);
|
|
}
|
|
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();
|
|
if seen != e.seen {
|
|
self.dirty = true;
|
|
}
|
|
e.seen = seen;
|
|
}
|
|
}
|
|
self.mailview
|
|
.process_event(&mut UIEvent::EnvelopeRename(*old_hash, *new_hash), context);
|
|
}
|
|
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();
|
|
if seen != e.seen {
|
|
self.dirty = true;
|
|
}
|
|
e.seen = seen;
|
|
}
|
|
}
|
|
self.mailview
|
|
.process_event(&mut UIEvent::EnvelopeUpdate(*env_hash), context);
|
|
}
|
|
_ => {
|
|
if self.mailview.process_event(event, context) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty || (self.show_mailview && self.mailview.is_dirty())
|
|
}
|
|
fn set_dirty(&mut self, value: bool) {
|
|
self.dirty = value;
|
|
self.mailview.set_dirty(value);
|
|
}
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
let mut map = self.mailview.get_shortcuts(context);
|
|
let config_map = context.settings.shortcuts.thread_view.key_values();
|
|
|
|
map.insert(ThreadView::DESCRIPTION, config_map);
|
|
|
|
map
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = 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))));
|
|
}
|
|
}
|