mirror of https://git.meli.delivery/meli/meli
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
843 lines
29 KiB
Rust
843 lines
29 KiB
Rust
/*
|
|
* meli - pager
|
|
*
|
|
* Copyright 2020 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/>.
|
|
*/
|
|
|
|
use super::*;
|
|
use melib::text_processing::LineBreakText;
|
|
|
|
/// A pager for text.
|
|
/// `Pager` holds its own content in its own `CellBuffer` and when `draw` is called, it draws the
|
|
/// current view of the text. It is responsible for scrolling etc.
|
|
#[derive(Default, Debug, Clone)]
|
|
pub struct Pager {
|
|
text: String,
|
|
cursor: (usize, usize),
|
|
reflow: Reflow,
|
|
height: usize,
|
|
width: usize,
|
|
minimum_width: usize,
|
|
search: Option<SearchPattern>,
|
|
dirty: bool,
|
|
|
|
colors: ThemeAttribute,
|
|
initialised: bool,
|
|
show_scrollbar: bool,
|
|
filtered_content: Option<(String, Result<CellBuffer>)>,
|
|
text_lines: Vec<String>,
|
|
line_breaker: LineBreakText,
|
|
movement: Option<PageMovement>,
|
|
id: ComponentId,
|
|
}
|
|
|
|
impl fmt::Display for Pager {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
write!(f, "{}", Pager::DESCRIPTION)
|
|
}
|
|
}
|
|
|
|
impl Pager {
|
|
pub const DESCRIPTION: &'static str = "pager";
|
|
const PAGES_AHEAD_TO_RENDER_NO: usize = 16;
|
|
pub fn new(context: &Context) -> Self {
|
|
let mut ret = Pager {
|
|
minimum_width: context.settings.pager.minimum_width,
|
|
..Pager::default()
|
|
};
|
|
ret.set_colors(crate::conf::value(context, "theme_default"))
|
|
.set_reflow(if context.settings.pager.split_long_lines {
|
|
Reflow::All
|
|
} else {
|
|
Reflow::No
|
|
});
|
|
ret
|
|
}
|
|
|
|
pub fn set_show_scrollbar(&mut self, new_val: bool) -> &mut Self {
|
|
self.show_scrollbar = new_val;
|
|
self
|
|
}
|
|
|
|
pub fn set_colors(&mut self, new_val: ThemeAttribute) -> &mut Self {
|
|
self.colors = new_val;
|
|
self
|
|
}
|
|
|
|
pub fn set_reflow(&mut self, new_val: Reflow) -> &mut Self {
|
|
self.reflow = new_val;
|
|
self
|
|
}
|
|
|
|
pub fn set_initialised(&mut self, new_val: bool) -> &mut Self {
|
|
self.initialised = new_val;
|
|
self
|
|
}
|
|
|
|
pub fn reflow(&self) -> Reflow {
|
|
self.reflow
|
|
}
|
|
|
|
pub fn update_from_str(&mut self, text: &str, mut width: Option<usize>) {
|
|
if let Some(ref mut width) = width.as_mut() {
|
|
if **width < self.minimum_width {
|
|
**width = self.minimum_width;
|
|
}
|
|
}
|
|
|
|
self.text = text.to_string();
|
|
self.text_lines.clear();
|
|
self.line_breaker = LineBreakText::new(self.text.clone(), self.reflow, width);
|
|
self.height = 0;
|
|
self.width = 0;
|
|
self.search = None;
|
|
self.set_dirty(true);
|
|
self.initialised = false;
|
|
self.cursor = (0, 0);
|
|
}
|
|
|
|
pub fn from_string(
|
|
text: String,
|
|
context: Option<&Context>,
|
|
cursor_pos: Option<usize>,
|
|
mut width: Option<usize>,
|
|
colors: ThemeAttribute,
|
|
) -> Self {
|
|
let pager_filter: Option<&String> = if let Some(context) = context {
|
|
context.settings.pager.filter.as_ref()
|
|
} else {
|
|
None
|
|
};
|
|
|
|
let pager_minimum_width: usize = if let Some(context) = context {
|
|
context.settings.pager.minimum_width
|
|
} else {
|
|
0
|
|
};
|
|
|
|
let reflow: Reflow = if let Some(context) = context {
|
|
if context.settings.pager.split_long_lines {
|
|
Reflow::All
|
|
} else {
|
|
Reflow::No
|
|
}
|
|
} else {
|
|
Reflow::All
|
|
};
|
|
|
|
if let Some(ref mut width) = width.as_mut() {
|
|
if **width < pager_minimum_width {
|
|
**width = pager_minimum_width;
|
|
}
|
|
}
|
|
|
|
let mut ret = Pager {
|
|
text,
|
|
text_lines: vec![],
|
|
reflow,
|
|
cursor: (0, cursor_pos.unwrap_or(0)),
|
|
height: 1,
|
|
width: 1,
|
|
minimum_width: pager_minimum_width,
|
|
initialised: false,
|
|
dirty: true,
|
|
id: ComponentId::new_v4(),
|
|
filtered_content: None,
|
|
colors,
|
|
..Default::default()
|
|
};
|
|
|
|
if let Some(bin) = pager_filter {
|
|
ret.filter(bin);
|
|
}
|
|
|
|
ret
|
|
}
|
|
|
|
pub fn filter(&mut self, cmd: &str) {
|
|
let _f = |bin: &str, text: &str| -> Result<CellBuffer> {
|
|
use std::io::Write;
|
|
use std::process::{Command, Stdio};
|
|
let mut filter_child = Command::new("sh")
|
|
.args(&["-c", bin])
|
|
.stdin(Stdio::piped())
|
|
.stdout(Stdio::piped())
|
|
.spawn()
|
|
.chain_err_summary(|| "Failed to start pager filter process")?;
|
|
let stdin = filter_child.stdin.as_mut().ok_or("failed to open stdin")?;
|
|
stdin
|
|
.write_all(text.as_bytes())
|
|
.chain_err_summary(|| "Failed to write to stdin")?;
|
|
let out = filter_child
|
|
.wait_with_output()
|
|
.chain_err_summary(|| "Failed to wait on filter")?
|
|
.stdout;
|
|
let mut dev_null = std::fs::File::open("/dev/null")?;
|
|
let mut embedded = crate::terminal::embed::EmbedGrid::new();
|
|
embedded.set_terminal_size((80, 20));
|
|
|
|
for b in out {
|
|
embedded.process_byte(&mut dev_null, b);
|
|
}
|
|
Ok(std::mem::take(embedded.buffer_mut()))
|
|
};
|
|
let buf = _f(cmd, &self.text);
|
|
if let Some((width, height)) = buf.as_ref().ok().map(CellBuffer::size) {
|
|
self.width = width;
|
|
self.height = height;
|
|
}
|
|
self.filtered_content = Some((cmd.to_string(), buf));
|
|
}
|
|
|
|
pub fn cursor_pos(&self) -> usize {
|
|
self.cursor.1
|
|
}
|
|
|
|
pub fn size(&self) -> (usize, usize) {
|
|
(self.width, self.height)
|
|
}
|
|
|
|
pub fn initialise(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let mut width = width!(area);
|
|
if width < self.minimum_width {
|
|
width = self.minimum_width;
|
|
}
|
|
if self.filtered_content.is_none() {
|
|
if self.line_breaker.width() != Some(width.saturating_sub(4)) {
|
|
let line_breaker = LineBreakText::new(
|
|
self.text.clone(),
|
|
self.reflow,
|
|
Some(width.saturating_sub(4)),
|
|
);
|
|
|
|
self.line_breaker = line_breaker;
|
|
self.text_lines.clear();
|
|
};
|
|
self.height = self.text_lines.len();
|
|
self.width = width;
|
|
if let Some(ref mut search) = self.search {
|
|
use melib::text_processing::search::KMP;
|
|
search.positions.clear();
|
|
for (y, l) in self.text_lines.iter().enumerate() {
|
|
search.positions.extend(
|
|
l.kmp_search(&search.pattern)
|
|
.into_iter()
|
|
.map(|offset| (y, offset)),
|
|
);
|
|
}
|
|
if let Some(pos) = search.positions.get(search.cursor) {
|
|
if self.cursor.1 > pos.0 || self.cursor.1 + height!(area) < pos.0 {
|
|
self.cursor.1 = pos.0.saturating_sub(3);
|
|
}
|
|
}
|
|
}
|
|
self.draw_lines_up_to(
|
|
grid,
|
|
area,
|
|
context,
|
|
self.cursor.1 + Self::PAGES_AHEAD_TO_RENDER_NO * height!(area),
|
|
);
|
|
}
|
|
self.draw_page(grid, area, context);
|
|
|
|
self.initialised = true;
|
|
}
|
|
|
|
pub fn draw_lines_up_to(
|
|
&mut self,
|
|
_grid: &mut CellBuffer,
|
|
area: Area,
|
|
_context: &mut Context,
|
|
up_to: usize,
|
|
) {
|
|
if self.line_breaker.is_finished() {
|
|
return;
|
|
}
|
|
let old_lines_no = self.text_lines.len();
|
|
if up_to == 0 {
|
|
self.text_lines.extend(self.line_breaker.by_ref());
|
|
} else {
|
|
if old_lines_no >= up_to + height!(area) {
|
|
return;
|
|
}
|
|
let new_lines_no = (up_to + height!(area)) - old_lines_no;
|
|
self.text_lines
|
|
.extend(self.line_breaker.by_ref().take(new_lines_no));
|
|
};
|
|
let new_lines_no = self.text_lines.len() - old_lines_no;
|
|
if let Some(ref mut search) = self.search {
|
|
use melib::text_processing::search::KMP;
|
|
for (y, l) in self.text_lines.iter().enumerate().skip(old_lines_no) {
|
|
search.positions.extend(
|
|
l.kmp_search(&search.pattern)
|
|
.into_iter()
|
|
.map(|offset| (y, offset)),
|
|
);
|
|
}
|
|
}
|
|
self.height += new_lines_no;
|
|
}
|
|
|
|
fn draw_page(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if let Some((ref cmd, ref filtered_content)) = self.filtered_content {
|
|
match filtered_content {
|
|
Ok(ref content) => {
|
|
copy_area(
|
|
grid,
|
|
content,
|
|
area,
|
|
(
|
|
(
|
|
std::cmp::min(
|
|
self.cursor.0,
|
|
content.size().0.saturating_sub(width!(area)),
|
|
),
|
|
std::cmp::min(
|
|
self.cursor.1,
|
|
content.size().1.saturating_sub(height!(area)),
|
|
),
|
|
),
|
|
pos_dec(content.size(), (1, 1)),
|
|
),
|
|
);
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateSubStatus(
|
|
cmd.to_string(),
|
|
)));
|
|
return;
|
|
}
|
|
Err(ref err) => {
|
|
let mut cmd = cmd.as_str();
|
|
cmd.truncate_at_boundary(4);
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateSubStatus(format!(
|
|
"{}: {}",
|
|
cmd, err
|
|
))));
|
|
}
|
|
}
|
|
}
|
|
|
|
let (mut upper_left, bottom_right) = area;
|
|
for l in self
|
|
.text_lines
|
|
.iter()
|
|
.skip(self.cursor.1)
|
|
.take(height!(area) + 1)
|
|
{
|
|
write_string_to_grid(
|
|
l,
|
|
grid,
|
|
self.colors.fg,
|
|
self.colors.bg,
|
|
Attr::DEFAULT,
|
|
(upper_left, bottom_right),
|
|
None,
|
|
);
|
|
if l.starts_with('⤷') {
|
|
grid[upper_left]
|
|
.set_fg(crate::conf::value(context, "highlight").fg)
|
|
.set_attrs(crate::conf::value(context, "highlight").attrs);
|
|
}
|
|
upper_left = pos_inc(upper_left, (0, 1));
|
|
}
|
|
|
|
if get_y(upper_left) <= get_y(bottom_right) {
|
|
clear_area(
|
|
grid,
|
|
(upper_left, bottom_right),
|
|
crate::conf::value(context, "theme_default"),
|
|
);
|
|
}
|
|
|
|
let (upper_left, _bottom_right) = area;
|
|
#[cfg(feature = "regexp")]
|
|
{
|
|
for text_formatter in crate::conf::text_format_regexps(context, "pager.envelope.body") {
|
|
let t = grid.insert_tag(text_formatter.tag);
|
|
for (i, l) in self
|
|
.text_lines
|
|
.iter()
|
|
.skip(self.cursor.1)
|
|
.enumerate()
|
|
.take(height!(area) + 1)
|
|
{
|
|
let i = i + get_y(upper_left);
|
|
for (start, end) in text_formatter.regexp.find_iter(l) {
|
|
let start = start + get_x(upper_left);
|
|
let end = end + get_x(upper_left);
|
|
grid.set_tag(t, (start, i), (end, i));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
let cursor_line = self.cursor.1;
|
|
if let Some(ref mut search) = self.search {
|
|
let results_attr = crate::conf::value(context, "pager.highlight_search");
|
|
let results_current_attr =
|
|
crate::conf::value(context, "pager.highlight_search_current");
|
|
search.cursor = std::cmp::min(search.positions.len().saturating_sub(1), search.cursor);
|
|
for (i, (y, x)) in search
|
|
.positions
|
|
.iter()
|
|
.enumerate()
|
|
.filter(|(_, (y, _))| *y >= cursor_line)
|
|
.take(height!(area) + 1)
|
|
{
|
|
let x = *x + get_x(upper_left);
|
|
let y = *y - cursor_line;
|
|
for c in grid.row_iter(
|
|
x..x + search.pattern.grapheme_width(),
|
|
y + get_y(upper_left),
|
|
) {
|
|
if i == search.cursor {
|
|
grid[c]
|
|
.set_fg(results_current_attr.fg)
|
|
.set_bg(results_current_attr.bg)
|
|
.set_attrs(results_current_attr.attrs);
|
|
} else {
|
|
grid[c]
|
|
.set_fg(results_attr.fg)
|
|
.set_bg(results_attr.bg)
|
|
.set_attrs(results_attr.attrs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Component for Pager {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if !is_valid_area!(area) {
|
|
return;
|
|
}
|
|
if !self.is_dirty() {
|
|
return;
|
|
}
|
|
|
|
if !self.initialised {
|
|
self.initialise(grid, area, context);
|
|
}
|
|
|
|
self.dirty = false;
|
|
|
|
let height = height!(area);
|
|
if let Some(mvm) = self.movement.take() {
|
|
match mvm {
|
|
PageMovement::Up(amount) => {
|
|
self.cursor.1 = self.cursor.1.saturating_sub(amount);
|
|
}
|
|
PageMovement::PageUp(multiplier) => {
|
|
self.cursor.1 = self.cursor.1.saturating_sub(height * multiplier);
|
|
}
|
|
PageMovement::Down(amount) => {
|
|
if self.cursor.1 + amount + 1 < self.height {
|
|
self.cursor.1 += amount;
|
|
} else {
|
|
self.cursor.1 = self.height.saturating_sub(1);
|
|
}
|
|
self.draw_lines_up_to(
|
|
grid,
|
|
area,
|
|
context,
|
|
self.cursor.1 + Self::PAGES_AHEAD_TO_RENDER_NO * height,
|
|
);
|
|
}
|
|
PageMovement::PageDown(multiplier) => {
|
|
if self.cursor.1 + height * multiplier + 1 < self.height {
|
|
self.cursor.1 += height * multiplier;
|
|
} else if self.cursor.1 + height * multiplier > self.height {
|
|
self.cursor.1 = self.height.saturating_sub(1);
|
|
} else {
|
|
self.cursor.1 = (self.height / height) * height;
|
|
}
|
|
self.draw_lines_up_to(
|
|
grid,
|
|
area,
|
|
context,
|
|
self.cursor.1 + Self::PAGES_AHEAD_TO_RENDER_NO * height,
|
|
);
|
|
}
|
|
PageMovement::Right(amount) => {
|
|
if self.cursor.0 + amount + 1 < self.width {
|
|
self.cursor.0 += amount;
|
|
} else {
|
|
self.cursor.0 = self.width.saturating_sub(1);
|
|
}
|
|
}
|
|
PageMovement::Left(amount) => {
|
|
self.cursor.0 = self.cursor.0.saturating_sub(amount);
|
|
}
|
|
PageMovement::Home => {
|
|
self.cursor.1 = 0;
|
|
}
|
|
PageMovement::End => {
|
|
self.draw_lines_up_to(grid, area, context, 0);
|
|
self.cursor.1 = self.height.saturating_sub(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if self.height == 0 || self.width == 0 {
|
|
return;
|
|
}
|
|
if let Some(ref mut search) = self.search {
|
|
if !search.positions.is_empty() {
|
|
if let Some(mvm) = search.movement.take() {
|
|
match mvm {
|
|
PageMovement::Up(_) => {
|
|
if self.cursor.1 > search.positions[search.cursor].0 {
|
|
self.cursor.1 = search.positions[search.cursor].0;
|
|
}
|
|
}
|
|
PageMovement::Down(_) => {
|
|
if self.cursor.1 + height < search.positions[search.cursor].0 {
|
|
self.cursor.1 = search.positions[search.cursor].0;
|
|
}
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
clear_area(grid, area, crate::conf::value(context, "theme_default"));
|
|
let (mut cols, mut rows) = (width!(area), height!(area));
|
|
if cols < 2 || rows < 2 {
|
|
return;
|
|
}
|
|
let (has_more_lines, (width, height)) = if self.filtered_content.is_some() {
|
|
(false, (self.width, self.height))
|
|
} else {
|
|
(
|
|
!self.line_breaker.is_finished(),
|
|
(self.line_breaker.width().unwrap_or(cols), self.height),
|
|
)
|
|
};
|
|
if self.show_scrollbar && rows < height {
|
|
cols -= 1;
|
|
rows -= 1;
|
|
} else if self.search.is_some() {
|
|
rows -= 1;
|
|
}
|
|
|
|
if self.show_scrollbar && cols < width {
|
|
rows -= 1;
|
|
}
|
|
self.cursor = (
|
|
std::cmp::min(width.saturating_sub(cols), self.cursor.0),
|
|
std::cmp::min(height.saturating_sub(rows), self.cursor.1),
|
|
);
|
|
self.draw_page(
|
|
grid,
|
|
(upper_left!(area), pos_inc(upper_left!(area), (cols, rows))),
|
|
context,
|
|
);
|
|
if self.show_scrollbar && rows < height {
|
|
ScrollBar::default().set_show_arrows(true).draw(
|
|
grid,
|
|
(
|
|
set_x(upper_left!(area), get_x(bottom_right!(area))),
|
|
bottom_right!(area),
|
|
),
|
|
context,
|
|
/* position */
|
|
self.cursor.1,
|
|
/* visible_rows */
|
|
rows,
|
|
/* length */
|
|
height,
|
|
);
|
|
}
|
|
if self.show_scrollbar && cols < width {
|
|
ScrollBar::default().set_show_arrows(true).draw_horizontal(
|
|
grid,
|
|
(
|
|
set_y(upper_left!(area), get_y(bottom_right!(area))),
|
|
bottom_right!(area),
|
|
),
|
|
context,
|
|
self.cursor.0,
|
|
cols,
|
|
width,
|
|
);
|
|
}
|
|
if (rows < height) || self.search.is_some() {
|
|
const RESULTS_STR: &str = "Results for ";
|
|
let shown_lines = self.cursor.1 + rows;
|
|
let total_lines = height;
|
|
if rows < height {
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::ScrollUpdate(
|
|
ScrollUpdate::Update {
|
|
id: self.id,
|
|
context: ScrollContext {
|
|
shown_lines,
|
|
total_lines,
|
|
has_more_lines,
|
|
},
|
|
},
|
|
)));
|
|
} else {
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::ScrollUpdate(
|
|
ScrollUpdate::End(self.id),
|
|
)));
|
|
};
|
|
if let Some(ref search) = self.search {
|
|
let status_message = format!(
|
|
"{results_str}{search_pattern}: {current_pos}/{total_results}{has_more_lines}",
|
|
results_str = RESULTS_STR,
|
|
search_pattern = &search.pattern,
|
|
current_pos = if search.positions.is_empty() {
|
|
0
|
|
} else {
|
|
search.cursor + 1
|
|
},
|
|
total_results = search.positions.len(),
|
|
has_more_lines = if !has_more_lines { "" } else { "(+)" }
|
|
);
|
|
let mut attribute = crate::conf::value(context, "status.bar");
|
|
if !context.settings.terminal.use_color() {
|
|
attribute.attrs |= Attr::REVERSE;
|
|
}
|
|
let (_, y) = write_string_to_grid(
|
|
&status_message,
|
|
grid,
|
|
attribute.fg,
|
|
attribute.bg,
|
|
attribute.attrs,
|
|
(
|
|
set_y(upper_left!(area), get_y(bottom_right!(area))),
|
|
bottom_right!(area),
|
|
),
|
|
None,
|
|
);
|
|
/* set search pattern to italics */
|
|
let start_x = get_x(upper_left!(area)) + RESULTS_STR.len();
|
|
for c in grid.row_iter(start_x..(start_x + search.pattern.grapheme_width()), y) {
|
|
grid[c].set_attrs(attribute.attrs | Attr::ITALICS);
|
|
}
|
|
};
|
|
}
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
let shortcuts = self.get_shortcuts(context);
|
|
match event {
|
|
UIEvent::ConfigReload { old_settings: _ } => {
|
|
self.set_colors(crate::conf::value(context, "theme_default"));
|
|
self.set_dirty(true);
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Self::DESCRIPTION]["scroll_up"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::Up(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Self::DESCRIPTION]["scroll_down"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::Down(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Home) => {
|
|
self.movement = Some(PageMovement::Home);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::End) => {
|
|
self.movement = Some(PageMovement::End);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Left) => {
|
|
self.movement = Some(PageMovement::Left(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Right) => {
|
|
self.movement = Some(PageMovement::Right(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Self::DESCRIPTION]["page_up"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageUp(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(ref key)
|
|
if shortcut!(key == shortcuts[Self::DESCRIPTION]["page_down"]) =>
|
|
{
|
|
self.movement = Some(PageMovement::PageDown(1));
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::ChangeMode(UIMode::Normal) => {
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Action(View(Pipe(ref bin, ref args))) => {
|
|
use std::io::Write;
|
|
use std::process::{Command, Stdio};
|
|
let mut command_obj = match Command::new(bin)
|
|
.args(args.as_slice())
|
|
.stdin(Stdio::piped())
|
|
.stdout(Stdio::piped())
|
|
.spawn()
|
|
{
|
|
Ok(o) => o,
|
|
Err(e) => {
|
|
context.replies.push_back(UIEvent::StatusEvent(
|
|
StatusEvent::DisplayMessage(format!(
|
|
"Could not pipe to {}: {}",
|
|
bin, e
|
|
)),
|
|
));
|
|
return true;
|
|
}
|
|
};
|
|
let stdin = command_obj.stdin.as_mut().expect("failed to open stdin");
|
|
stdin
|
|
.write_all(self.text.as_bytes())
|
|
.expect("Failed to write to stdin");
|
|
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::DisplayMessage(format!(
|
|
"Pager text piped to '{}{}{}'",
|
|
&bin,
|
|
if args.is_empty() { "" } else { " " },
|
|
args.join(" ")
|
|
))));
|
|
return true;
|
|
}
|
|
UIEvent::Action(View(Filter(ref cmd))) => {
|
|
self.filter(cmd);
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Action(Action::Listing(ListingAction::Search(pattern))) => {
|
|
self.search = Some(SearchPattern {
|
|
pattern: pattern.to_string(),
|
|
positions: vec![],
|
|
cursor: 0,
|
|
movement: Some(PageMovement::Home),
|
|
});
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char('n')) if self.search.is_some() => {
|
|
if let Some(ref mut search) = self.search {
|
|
search.movement = Some(PageMovement::Down(1));
|
|
search.cursor += 1;
|
|
} else {
|
|
unsafe {
|
|
std::hint::unreachable_unchecked();
|
|
}
|
|
}
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char('N')) if self.search.is_some() => {
|
|
if let Some(ref mut search) = self.search {
|
|
search.movement = Some(PageMovement::Up(1));
|
|
search.cursor = search.cursor.saturating_sub(1);
|
|
} else {
|
|
unsafe {
|
|
std::hint::unreachable_unchecked();
|
|
}
|
|
}
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Esc) if self.search.is_some() => {
|
|
self.search = None;
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Esc) if self.filtered_content.is_some() => {
|
|
self.filtered_content = None;
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateSubStatus(
|
|
String::new(),
|
|
)));
|
|
return true;
|
|
}
|
|
UIEvent::Resize => {
|
|
self.initialised = false;
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::VisibilityChange(false) => {
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::ScrollUpdate(
|
|
ScrollUpdate::End(self.id),
|
|
)));
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateSubStatus(
|
|
String::new(),
|
|
)));
|
|
}
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
}
|
|
|
|
fn set_dirty(&mut self, value: bool) {
|
|
self.dirty = value;
|
|
}
|
|
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
let config_map: IndexMap<&'static str, Key> = context.settings.shortcuts.pager.key_values();
|
|
let mut ret: ShortcutMaps = Default::default();
|
|
ret.insert(Pager::DESCRIPTION, config_map);
|
|
ret
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
}
|