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/*
* meli - pager conf module
*
* Copyright 2018 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* meli is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with meli. If not, see <http://www.gnu.org/licenses/>.
*/
//! Settings for the pager function.
use super::default_vals::*;
use super::deserializers::*;
use super::DotAddressable;
use melib::{Error, Result, ToggleFlag};
/// Settings for the pager function.
#[derive(Debug, Deserialize, Clone, Serialize)]
#[serde(deny_unknown_fields)]
pub struct PagerSettings {
/// Number of context lines when going to next page.
/// Default: 0
#[serde(default = "zero_val", alias = "pager-context")]
pub pager_context: usize,
/// Stop at the end instead of displaying next mail.
/// Default: false
#[serde(default = "false_val", alias = "pager-stop")]
pub pager_stop: bool,
/// Always show headers when scrolling.
/// Default: true
#[serde(default = "true_val", alias = "headers-sticky")]
pub headers_sticky: bool,
/// The height of the pager in mail view, in percent.
/// Default: 80
#[serde(default = "eighty_val", alias = "pager-ratio")]
pub pager_ratio: usize,
/// A command to pipe mail output through for viewing in pager.
/// Default: None
#[serde(default = "none", deserialize_with = "non_empty_string")]
pub filter: Option<String>,
/// A command to pipe html output before displaying it in a pager
/// Default: None
#[serde(
default = "none",
deserialize_with = "non_empty_string",
alias = "html-filter"
)]
pub html_filter: Option<String>,
/// Respect "format=flowed"
/// Default: true
#[serde(default = "true_val", alias = "format-flowed")]
pub format_flowed: bool,
/// Split long lines that would overflow on the x axis.
/// Default: true
#[serde(default = "true_val", alias = "split-long-lines")]
pub split_long_lines: bool,
/// Minimum text width in columns.
/// Default: 80
#[serde(default = "eighty_val", alias = "minimum-width")]
pub minimum_width: usize,
/// Choose `text/html` alternative if `text/plain` is empty in `multipart/alternative`
/// attachments.
/// Default: true
#[serde(
default = "internal_value_true",
alias = "auto-choose-multipart-alternative"
)]
pub auto_choose_multipart_alternative: ToggleFlag,
/// Show Date: in my timezone
/// Default: true
#[serde(default = "internal_value_true", alias = "show-date-in-my-timezone")]
pub show_date_in_my_timezone: ToggleFlag,
/// A command to launch URLs with. The URL will be given as the first argument of the command.
/// Default: None
#[serde(default = "none", deserialize_with = "non_empty_string")]
pub url_launcher: Option<String>,
/// A command to open html files.
/// Default: None
#[serde(
default = "none",
deserialize_with = "non_empty_string",
alias = "html-open"
)]
pub html_open: Option<String>,
}
impl Default for PagerSettings {
fn default() -> Self {
Self {
pager_context: 0,
pager_stop: false,
headers_sticky: true,
pager_ratio: 80,
filter: None,
html_filter: None,
html_open: None,
format_flowed: true,
split_long_lines: true,
minimum_width: 80,
auto_choose_multipart_alternative: ToggleFlag::InternalVal(true),
show_date_in_my_timezone: ToggleFlag::InternalVal(true),
url_launcher: None,
}
}
}
impl DotAddressable for PagerSettings {
fn lookup(&self, parent_field: &str, path: &[&str]) -> Result<String> {
match path.first() {
Some(field) => {
let tail = &path[1..];
match *field {
"pager_context" => self.pager_context.lookup(field, tail),
"pager_stop" => self.pager_stop.lookup(field, tail),
"headers_sticky" => self.headers_sticky.lookup(field, tail),
"pager_ratio" => self.pager_ratio.lookup(field, tail),
"filter" => self.filter.lookup(field, tail),
"html_filter" => self.html_filter.lookup(field, tail),
"html_open" => self.html_open.lookup(field, tail),
"format_flowed" => self.format_flowed.lookup(field, tail),
"split_long_lines" => self.split_long_lines.lookup(field, tail),
"minimum_width" => self.minimum_width.lookup(field, tail),
"auto_choose_multipart_alternative" => {
self.auto_choose_multipart_alternative.lookup(field, tail)
}
"show_date_in_my_timezone" => self.show_date_in_my_timezone.lookup(field, tail),
"url_launcher" => self.html_filter.lookup(field, tail),
other => Err(Error::new(format!(
"{} has no field named {}",
parent_field, other
))),
}
}
None => Ok(toml::to_string(self).map_err(|err| err.to_string())?),
}
}
}
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