154 lines
5.2 KiB
Rust
154 lines
5.2 KiB
Rust
/*
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* meli - listing conf module
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*
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* Copyright 2020 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::{default_vals::*, DotAddressable, IndexStyle};
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use melib::search::Query;
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use melib::{MeliError, Result};
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/// Settings for mail listings
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///
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///
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/// Tree decoration examples:
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///
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///```no_run
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///const HAS_SIBLING: &'static str = " ┃";
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///const NO_SIBLING: &'static str = " ";
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///const HAS_SIBLING_LEAF: &'static str = " ┣━";
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///const NO_SIBLING_LEAF: &'static str = " ┗━";
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///
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///const HAS_SIBLING: &'static str = " |";
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///const NO_SIBLING: &'static str = " ";
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///const HAS_SIBLING_LEAF: &'static str = " |\\_";
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///const NO_SIBLING_LEAF: &'static str = " \\_";
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///
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///const HAS_SIBLING: &'static str = " ";
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///const NO_SIBLING: &'static str = " ";
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///const HAS_SIBLING_LEAF: &'static str = " ";
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///const NO_SIBLING_LEAF: &'static str = " ";
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///
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///const HAS_SIBLING: &'static str = " │";
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///const NO_SIBLING: &'static str = " ";
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///const HAS_SIBLING_LEAF: &'static str = " ├─";
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///const NO_SIBLING_LEAF: &'static str = " ╰─";
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///```
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#[derive(Debug, Deserialize, Clone, Serialize)]
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#[serde(deny_unknown_fields)]
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pub struct ListingSettings {
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/// Number of context lines when going to next page.
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/// Default: 0
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#[serde(default = "zero_val", alias = "context-lines")]
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pub context_lines: usize,
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/// Datetime formatting passed verbatim to strftime(3).
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/// Default: %Y-%m-%d %T
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#[serde(default = "none", alias = "datetime-fmt")]
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pub datetime_fmt: Option<String>,
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/// Show recent dates as `X {minutes,hours,days} ago`, up to 7 days.
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/// Default: true
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#[serde(default = "true_val", alias = "recent-dates")]
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pub recent_dates: bool,
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/// Show only envelopes that match this query
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/// Default: None
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#[serde(default = "none")]
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pub filter: Option<Query>,
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#[serde(default, alias = "index-style")]
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pub index_style: IndexStyle,
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///Default: " "
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#[serde(default = "none")]
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pub sidebar_mailbox_tree_has_sibling: Option<String>,
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///Default: " "
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#[serde(default)]
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pub sidebar_mailbox_tree_no_sibling: Option<String>,
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///Default: " "
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#[serde(default)]
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pub sidebar_mailbox_tree_has_sibling_leaf: Option<String>,
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///Default: " "
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#[serde(default)]
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pub sidebar_mailbox_tree_no_sibling_leaf: Option<String>,
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///Default: ' '
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#[serde(default = "default_divider")]
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pub sidebar_divider: char,
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}
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const fn default_divider() -> char {
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' '
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}
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impl Default for ListingSettings {
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fn default() -> Self {
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Self {
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context_lines: 0,
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datetime_fmt: None,
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recent_dates: true,
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filter: None,
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index_style: IndexStyle::default(),
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sidebar_mailbox_tree_has_sibling: None,
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sidebar_mailbox_tree_no_sibling: None,
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sidebar_mailbox_tree_has_sibling_leaf: None,
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sidebar_mailbox_tree_no_sibling_leaf: None,
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sidebar_divider: default_divider(),
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}
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}
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}
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impl DotAddressable for ListingSettings {
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fn lookup(&self, parent_field: &str, path: &[&str]) -> Result<String> {
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match path.first() {
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Some(field) => {
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let tail = &path[1..];
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match *field {
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"context_lines" => self.context_lines.lookup(field, tail),
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"datetime_fmt" => self.datetime_fmt.lookup(field, tail),
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"recent_dates" => self.recent_dates.lookup(field, tail),
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"filter" => self.filter.lookup(field, tail),
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"index_style" => self.index_style.lookup(field, tail),
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"sidebar_mailbox_tree_has_sibling" => {
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self.sidebar_mailbox_tree_has_sibling.lookup(field, tail)
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}
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"sidebar_mailbox_tree_no_sibling" => {
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self.sidebar_mailbox_tree_no_sibling.lookup(field, tail)
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}
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"sidebar_mailbox_tree_has_sibling_leaf" => self
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.sidebar_mailbox_tree_has_sibling_leaf
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.lookup(field, tail),
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"sidebar_mailbox_tree_no_sibling_leaf" => self
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.sidebar_mailbox_tree_no_sibling_leaf
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.lookup(field, tail),
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"sidebar_divider" => self.sidebar_divider.lookup(field, tail),
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other => Err(MeliError::new(format!(
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"{} has no field named {}",
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parent_field, other
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))),
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}
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}
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None => Ok(toml::to_string(self).map_err(|err| err.to_string())?),
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}
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}
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}
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