2197 lines
75 KiB
Rust
2197 lines
75 KiB
Rust
/*
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* meli - ui crate.
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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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/*! Various useful components that can be used in a generic fashion.
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*/
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use super::*;
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mod widgets;
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pub use self::widgets::*;
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use fnv::FnvHashSet;
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/// A horizontally split in half container.
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#[derive(Debug)]
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pub struct HSplit {
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top: Box<dyn Component>,
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bottom: Box<dyn Component>,
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show_divider: bool,
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ratio: usize, // bottom/whole height * 100
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id: ComponentId,
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}
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impl fmt::Display for HSplit {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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// TODO display subject/info
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Display::fmt(&self.top, f)
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}
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}
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impl HSplit {
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pub fn new(
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top: Box<dyn Component>,
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bottom: Box<dyn Component>,
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ratio: usize,
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show_divider: bool,
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) -> Self {
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HSplit {
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top,
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bottom,
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show_divider,
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ratio,
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id: ComponentId::new_v4(),
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}
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}
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}
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impl Component for HSplit {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if !is_valid_area!(area) {
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return;
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}
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let upper_left = upper_left!(area);
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let bottom_right = bottom_right!(area);
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let total_rows = get_y(bottom_right) - get_y(upper_left);
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let bottom_component_height = (self.ratio * total_rows) / 100;
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let mid = get_y(upper_left) + total_rows - bottom_component_height;
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if self.show_divider {
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for i in get_x(upper_left)..=get_x(bottom_right) {
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grid[(i, mid)].set_ch('─');
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}
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context
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.dirty_areas
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.push_back(((get_x(upper_left), mid), (get_x(bottom_right), mid)));
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}
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self.top.draw(
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grid,
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(
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upper_left,
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(get_x(bottom_right), get_y(upper_left) + mid - 1),
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),
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context,
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);
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self.bottom.draw(
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grid,
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((get_x(upper_left), get_y(upper_left) + mid), bottom_right),
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context,
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);
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}
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fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
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self.top.process_event(event, context) || self.bottom.process_event(event, context)
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}
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fn is_dirty(&self) -> bool {
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self.top.is_dirty() || self.bottom.is_dirty()
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}
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fn set_dirty(&mut self) {
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self.top.set_dirty();
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self.bottom.set_dirty();
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}
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fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
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let mut top_map = self.top.get_shortcuts(context);
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top_map.extend(self.bottom.get_shortcuts(context).into_iter());
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top_map
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}
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fn id(&self) -> ComponentId {
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self.id
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}
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fn set_id(&mut self, id: ComponentId) {
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self.id = id;
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}
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}
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/// A vertically split in half container.
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#[derive(Debug)]
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pub struct VSplit {
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left: Box<dyn Component>,
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right: Box<dyn Component>,
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show_divider: bool,
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prev_visibility: (bool, bool),
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/// This is the width of the right container to the entire width.
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ratio: usize, // right/(container width) * 100
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id: ComponentId,
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}
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impl fmt::Display for VSplit {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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// TODO display focused component
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Display::fmt(&self.right, f)
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}
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}
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impl VSplit {
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pub fn new(
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left: Box<dyn Component>,
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right: Box<dyn Component>,
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ratio: usize,
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show_divider: bool,
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) -> Self {
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VSplit {
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left,
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right,
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show_divider,
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prev_visibility: (true, true),
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ratio,
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id: ComponentId::new_v4(),
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}
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}
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}
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impl Component for VSplit {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if !is_valid_area!(area) {
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return;
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}
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let upper_left = upper_left!(area);
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let bottom_right = bottom_right!(area);
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let total_cols = get_x(bottom_right) - get_x(upper_left);
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let visibility = (self.left.is_visible(), self.right.is_visible());
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if visibility != self.prev_visibility {
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self.set_dirty();
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self.prev_visibility = visibility;
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}
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let right_component_width = match visibility {
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(true, true) => (self.ratio * total_cols) / 100,
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(false, true) => total_cols,
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(true, false) => 0,
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(false, false) => {
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clear_area(grid, area);
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return;
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}
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};
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let mid = get_x(bottom_right) - right_component_width;
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if get_y(upper_left) > 1 {
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let c = grid
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.get(mid, get_y(upper_left) - 1)
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.map(Cell::ch)
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.unwrap_or_else(|| ' ');
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if let HORZ_BOUNDARY = c {
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grid[(mid, get_y(upper_left) - 1)].set_ch(LIGHT_DOWN_AND_HORIZONTAL);
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}
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}
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if self.show_divider && mid != get_x(upper_left) {
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for i in get_y(upper_left)..=get_y(bottom_right) {
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grid[(mid, i)].set_ch(VERT_BOUNDARY);
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grid[(mid, i)].set_fg(Color::Default);
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grid[(mid, i)].set_bg(Color::Default);
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}
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if get_y(bottom_right) > 1 {
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let c = grid
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.get(mid, get_y(bottom_right) - 1)
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.map(Cell::ch)
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.unwrap_or_else(|| ' ');
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if let HORZ_BOUNDARY = c {
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grid[(mid, get_y(bottom_right) + 1)].set_ch(LIGHT_UP_AND_HORIZONTAL);
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}
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}
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context
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.dirty_areas
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.push_back(((mid, get_y(upper_left)), (mid, get_y(bottom_right))));
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}
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if right_component_width == total_cols {
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self.right.draw(grid, area, context);
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} else if right_component_width == 0 {
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self.left.draw(grid, area, context);
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} else {
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self.left.draw(
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grid,
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(
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upper_left,
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(
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if self.show_divider { mid - 1 } else { mid },
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get_y(bottom_right),
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),
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),
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context,
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);
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self.right
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.draw(grid, (set_x(upper_left, mid + 1), bottom_right), context);
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}
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}
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fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
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(self.left.process_event(event, context) || self.right.process_event(event, context))
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}
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fn is_dirty(&self) -> bool {
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self.left.is_dirty() || self.right.is_dirty()
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}
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fn set_dirty(&mut self) {
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self.left.set_dirty();
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self.right.set_dirty();
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}
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fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
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let mut right_map = self.right.get_shortcuts(context);
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right_map.extend(self.left.get_shortcuts(context).into_iter());
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right_map
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}
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fn id(&self) -> ComponentId {
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self.id
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}
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fn set_id(&mut self, id: ComponentId) {
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self.id = id;
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}
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}
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#[derive(Debug, Clone, Copy)]
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pub enum PageMovement {
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Home,
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PageUp,
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PageDown,
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End,
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}
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/// A pager for text.
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/// `Pager` holds its own content in its own `CellBuffer` and when `draw` is called, it draws the
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/// current view of the text. It is responsible for scrolling etc.
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#[derive(Default, Debug, Clone)]
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pub struct Pager {
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text: String,
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cursor_pos: usize,
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max_cursor_pos: Option<usize>,
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height: usize,
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width: usize,
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dirty: bool,
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content: CellBuffer,
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movement: Option<PageMovement>,
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id: ComponentId,
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}
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impl fmt::Display for Pager {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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// TODO display info
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write!(f, "{}", Pager::DESCRIPTION)
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}
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}
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impl Pager {
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const DESCRIPTION: &'static str = "pager";
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pub fn update_from_str(&mut self, text: &str, width: Option<usize>) {
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let lines: Vec<&str> = if let Some(width) = width {
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word_break_string(text, width)
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} else {
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text.trim().split('\n').collect()
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};
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let height = lines.len() + 1;
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let width = width.unwrap_or_else(|| lines.iter().map(|l| l.len()).max().unwrap_or(0));
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let ascii_drawing = self.content.ascii_drawing;
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let mut content = CellBuffer::new(width, height, Cell::with_char(' '));
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content.set_ascii_drawing(ascii_drawing);
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Pager::print_string(&mut content, lines);
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self.text = text.to_string();
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self.content = content;
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self.height = height;
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self.width = width;
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self.dirty = true;
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self.cursor_pos = 0;
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self.max_cursor_pos = None;
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}
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pub fn from_string(
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mut text: String,
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context: Option<&Context>,
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cursor_pos: Option<usize>,
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width: Option<usize>,
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) -> Self {
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let pager_filter: Option<&String> = if let Some(context) = context {
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context.settings.pager.filter.as_ref()
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//let format_flowed: bool = context.settings.pager.format_flowed;
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} else {
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None
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};
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if let Some(bin) = pager_filter {
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use std::io::Write;
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use std::process::{Command, Stdio};
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let mut filter_child = Command::new(bin)
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.stdin(Stdio::piped())
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.stdout(Stdio::piped())
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.spawn()
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.expect("Failed to start pager filter process");
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{
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let stdin = filter_child.stdin.as_mut().expect("failed to open stdin");
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stdin
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.write_all(text.as_bytes())
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.expect("Failed to write to stdin");
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}
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text = String::from_utf8_lossy(
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&filter_child
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.wait_with_output()
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.expect("Failed to wait on filter")
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.stdout,
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)
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.to_string();
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}
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let content = {
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let lines: Vec<&str> = if let Some(width) = width {
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word_break_string(text.as_str(), width)
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} else {
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text.trim().split('\n').collect()
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};
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let height = lines.len() + 1;
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let width = width.unwrap_or_else(|| lines.iter().map(|l| l.len()).max().unwrap_or(0));
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let mut content = if let Some(context) = context {
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CellBuffer::new_with_context(width, height, Cell::with_char(' '), context)
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} else {
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CellBuffer::new(width, height, Cell::with_char(' '))
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};
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//interpret_format_flowed(&text);
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Pager::print_string(&mut content, lines);
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content
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};
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Pager {
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text,
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cursor_pos: cursor_pos.unwrap_or(0),
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height: content.size().1,
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width: content.size().0,
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dirty: true,
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content,
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id: ComponentId::new_v4(),
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..Default::default()
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}
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}
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pub fn from_str(text: &str, cursor_pos: Option<usize>, width: Option<usize>) -> Self {
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let lines: Vec<&str> = if let Some(width) = width {
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word_break_string(text, width)
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} else {
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text.trim().split('\n').collect()
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};
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let height = lines.len() + 1;
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let width = width.unwrap_or_else(|| lines.iter().map(|l| l.len()).max().unwrap_or(0));
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let mut content = CellBuffer::new(width, height, Cell::with_char(' '));
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Pager::print_string(&mut content, lines);
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Pager {
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text: text.to_string(),
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cursor_pos: cursor_pos.unwrap_or(0),
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height,
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width,
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dirty: true,
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content,
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id: ComponentId::new_v4(),
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..Default::default()
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}
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}
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pub fn from_buf(content: CellBuffer, cursor_pos: Option<usize>) -> Self {
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let (width, height) = content.size();
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Pager {
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text: String::new(),
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cursor_pos: cursor_pos.unwrap_or(0),
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height,
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width,
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dirty: true,
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content,
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id: ComponentId::new_v4(),
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..Default::default()
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}
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}
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pub fn print_string(content: &mut CellBuffer, lines: Vec<&str>) {
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let width = content.size().0;
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for (i, l) in lines.iter().enumerate() {
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write_string_to_grid(
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l,
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content,
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Color::Default,
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Color::Default,
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Attr::Default,
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((0, i), (width - 1, i)),
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true,
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);
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}
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}
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pub fn cursor_pos(&self) -> usize {
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self.cursor_pos
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}
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}
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impl Component for Pager {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if !is_valid_area!(area) {
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return;
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}
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if !self.is_dirty() {
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return;
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}
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self.dirty = false;
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let height = height!(area);
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if let Some(mvm) = self.movement.take() {
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match mvm {
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PageMovement::PageUp => {
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self.cursor_pos = self.cursor_pos.saturating_sub(height);
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}
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PageMovement::PageDown => {
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if self.cursor_pos + height < self.height {
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self.cursor_pos += height;
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}
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}
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PageMovement::Home => {
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self.cursor_pos = 0;
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}
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PageMovement::End => {
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self.cursor_pos = (self.height / height) * height;
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}
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}
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}
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if self.height == 0 || self.width == 0 {
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return;
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}
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clear_area(grid, area);
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//let pager_context: usize = context.settings.pager.pager_context;
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//let pager_stop: bool = context.settings.pager.pager_stop;
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//let rows = y(bottom_right) - y(upper_left);
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//let page_length = rows / self.height;
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let width = width!(area);
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if width != self.width {
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// Reflow text.
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let lines: Vec<&str> = word_break_string(self.text.as_str(), width);
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let height = lines.len() + 1;
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self.width = width;
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self.height = height;
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self.content =
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CellBuffer::new_with_context(width, height, Cell::with_char(' '), context);
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Pager::print_string(&mut self.content, lines);
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}
|
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if self.cursor_pos + height >= self.height {
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self.cursor_pos = self.height.saturating_sub(height);
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};
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copy_area_with_break(
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grid,
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&self.content,
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area,
|
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((0, self.cursor_pos), (self.width - 1, self.height - 1)),
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);
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context.dirty_areas.push_back(area);
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}
|
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fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
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let shortcuts = &self.get_shortcuts(context)[Self::DESCRIPTION];
|
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match event {
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UIEvent::Input(ref key) if *key == shortcuts["scroll_up"] => {
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if self.cursor_pos > 0 {
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self.cursor_pos -= 1;
|
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self.dirty = true;
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}
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return true;
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}
|
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UIEvent::Input(ref key) if *key == shortcuts["scroll_down"] => {
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if self.height > 0 && self.cursor_pos + 1 < self.height {
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self.cursor_pos += 1;
|
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self.dirty = true;
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}
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return true;
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}
|
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UIEvent::Input(ref key) if *key == shortcuts["page_up"] => {
|
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self.movement = Some(PageMovement::PageUp);
|
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self.dirty = true;
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return true;
|
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}
|
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UIEvent::Input(ref key) if *key == shortcuts["page_down"] => {
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self.movement = Some(PageMovement::PageDown);
|
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self.dirty = true;
|
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return true;
|
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}
|
|
UIEvent::ChangeMode(UIMode::Normal) => {
|
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self.dirty = true;
|
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}
|
|
UIEvent::Action(Pager(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::Resize => {
|
|
self.dirty = true;
|
|
self.max_cursor_pos = None;
|
|
}
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
}
|
|
fn set_dirty(&mut self) {
|
|
self.dirty = true;
|
|
}
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
let config_map: FnvHashMap<&'static str, &Key> =
|
|
context.settings.shortcuts.pager.key_values();
|
|
[(
|
|
Pager::DESCRIPTION.to_string(),
|
|
[
|
|
("scroll_up", (*config_map["scroll_up"]).clone()),
|
|
("scroll_down", (*config_map["scroll_down"]).clone()),
|
|
("page_up", (*config_map["page_up"]).clone()),
|
|
("page_down", (*config_map["page_down"]).clone()),
|
|
]
|
|
.iter()
|
|
.cloned()
|
|
.collect::<ShortcutMap>(),
|
|
)]
|
|
.iter()
|
|
.cloned()
|
|
.collect()
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
}
|
|
|
|
/// Status bar.
|
|
#[derive(Debug)]
|
|
pub struct StatusBar {
|
|
container: Box<dyn Component>,
|
|
status: String,
|
|
notifications: VecDeque<String>,
|
|
cur_notification: Option<(std::time::Instant, String)>,
|
|
ex_buffer: Field,
|
|
ex_buffer_cmd_history_pos: Option<usize>,
|
|
display_buffer: String,
|
|
mode: UIMode,
|
|
height: usize,
|
|
dirty: bool,
|
|
id: ComponentId,
|
|
|
|
auto_complete: AutoComplete,
|
|
cmd_history: Vec<String>,
|
|
}
|
|
|
|
impl fmt::Display for StatusBar {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
// TODO display info
|
|
write!(f, "status bar")
|
|
}
|
|
}
|
|
|
|
impl StatusBar {
|
|
pub fn new(container: Box<dyn Component>) -> Self {
|
|
StatusBar {
|
|
container,
|
|
status: String::with_capacity(256),
|
|
notifications: VecDeque::new(),
|
|
cur_notification: None,
|
|
ex_buffer: Field::Text(UText::new(String::with_capacity(256)), None),
|
|
ex_buffer_cmd_history_pos: None,
|
|
display_buffer: String::with_capacity(8),
|
|
dirty: true,
|
|
mode: UIMode::Normal,
|
|
height: 1,
|
|
id: ComponentId::new_v4(),
|
|
auto_complete: AutoComplete::new(Vec::new()),
|
|
|
|
cmd_history: crate::execute::history::old_cmd_history(),
|
|
}
|
|
}
|
|
fn draw_status_bar(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
clear_area(grid, area);
|
|
let (x, y) = write_string_to_grid(
|
|
&self.status,
|
|
grid,
|
|
Color::Byte(123),
|
|
Color::Byte(26),
|
|
Attr::Default,
|
|
area,
|
|
false,
|
|
);
|
|
let offset = self.status.find('|').unwrap_or_else(|| self.status.len());
|
|
for x in get_x(upper_left!(area))..get_x(upper_left!(area)) + offset {
|
|
grid[(x, y)].set_attrs(Attr::Bold);
|
|
}
|
|
if self.cur_notification.is_some() {
|
|
let (t, n) = self.cur_notification.as_ref().unwrap();
|
|
if std::time::Instant::now().duration_since(*t) < std::time::Duration::new(5, 0) {
|
|
write_string_to_grid(
|
|
n,
|
|
grid,
|
|
Color::Byte(219),
|
|
Color::Byte(88),
|
|
Attr::Default,
|
|
(
|
|
(std::cmp::max(x, width!(area).saturating_sub(n.len())), y),
|
|
bottom_right!(area),
|
|
),
|
|
false,
|
|
);
|
|
} else {
|
|
self.cur_notification = None;
|
|
}
|
|
}
|
|
if self.cur_notification.is_none() {
|
|
if let Some(n) = self.notifications.pop_front() {
|
|
write_string_to_grid(
|
|
&n,
|
|
grid,
|
|
Color::Byte(219),
|
|
Color::Byte(88),
|
|
Attr::Default,
|
|
(
|
|
(std::cmp::max(x, width!(area).saturating_sub(n.len())), y),
|
|
bottom_right!(area),
|
|
),
|
|
false,
|
|
);
|
|
self.cur_notification = Some((std::time::Instant::now(), n));
|
|
}
|
|
}
|
|
|
|
let (x, y) = bottom_right!(area);
|
|
for (idx, c) in self.display_buffer.chars().rev().enumerate() {
|
|
if let Some(cell) = grid.get_mut(x.saturating_sub(idx).saturating_sub(1), y) {
|
|
cell.set_ch(c);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
change_colors(grid, area, Color::Byte(123), Color::Byte(26));
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
fn draw_execute_bar(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
clear_area(grid, area);
|
|
let (x, y) = write_string_to_grid(
|
|
self.ex_buffer.as_str(),
|
|
grid,
|
|
Color::Byte(219),
|
|
Color::Byte(88),
|
|
Attr::Default,
|
|
area,
|
|
false,
|
|
);
|
|
grid[(x, y)].set_attrs(Attr::Underline);
|
|
change_colors(grid, area, Color::Byte(219), Color::Byte(88));
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
}
|
|
|
|
impl Component for StatusBar {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if !is_valid_area!(area) {
|
|
return;
|
|
}
|
|
let upper_left = upper_left!(area);
|
|
let bottom_right = bottom_right!(area);
|
|
|
|
let total_rows = get_y(bottom_right) - get_y(upper_left);
|
|
if total_rows <= self.height {
|
|
return;
|
|
}
|
|
let height = self.height;
|
|
|
|
self.container.draw(
|
|
grid,
|
|
(
|
|
upper_left,
|
|
(get_x(bottom_right), get_y(bottom_right) - height),
|
|
),
|
|
context,
|
|
);
|
|
|
|
if !self.is_dirty() {
|
|
return;
|
|
}
|
|
self.dirty = false;
|
|
self.draw_status_bar(
|
|
grid,
|
|
(set_y(upper_left, get_y(bottom_right)), bottom_right),
|
|
context,
|
|
);
|
|
match self.mode {
|
|
UIMode::Normal => {}
|
|
UIMode::Execute => {
|
|
self.draw_execute_bar(
|
|
grid,
|
|
(
|
|
set_y(upper_left, get_y(bottom_right) - height + 1),
|
|
set_y(bottom_right, get_y(bottom_right) - height + 1),
|
|
),
|
|
context,
|
|
);
|
|
/* don't autocomplete for less than 3 characters */
|
|
if self.ex_buffer.as_str().split_graphemes().len() <= 2 {
|
|
return;
|
|
}
|
|
|
|
let mut unique_suggestions: FnvHashSet<&str> = FnvHashSet::default();
|
|
let mut suggestions: Vec<AutoCompleteEntry> = self
|
|
.cmd_history
|
|
.iter()
|
|
.filter_map(|h| {
|
|
let sug = self.ex_buffer.as_str();
|
|
if h.starts_with(sug) && !unique_suggestions.contains(sug) {
|
|
unique_suggestions.insert(sug);
|
|
Some(h.clone().into())
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
.collect();
|
|
suggestions.extend(crate::execute::COMMAND_COMPLETION.iter().filter_map(|e| {
|
|
if e.0.starts_with(self.ex_buffer.as_str()) {
|
|
Some(e.into())
|
|
} else {
|
|
None
|
|
}
|
|
}));
|
|
if suggestions.is_empty() && !self.auto_complete.suggestions().is_empty() {
|
|
self.auto_complete.set_suggestions(suggestions);
|
|
/* redraw self.container because we have got ridden of an autocomplete
|
|
* box, and it must be drawn over */
|
|
self.container.set_dirty();
|
|
return;
|
|
}
|
|
/* redraw self.container because we have less suggestions than before */
|
|
if suggestions.len() < self.auto_complete.suggestions().len() {
|
|
self.container.set_dirty();
|
|
}
|
|
|
|
if self.auto_complete.set_suggestions(suggestions) {
|
|
let len = self.auto_complete.suggestions().len() - 1;
|
|
self.auto_complete.set_cursor(len);
|
|
}
|
|
let hist_height = std::cmp::min(15, self.auto_complete.suggestions().len());
|
|
let hist_area = if height < self.auto_complete.suggestions().len() {
|
|
let mut scrollbar = ScrollBar::default();
|
|
scrollbar.set_show_arrows(false);
|
|
scrollbar.set_block_character(Some('▌'));
|
|
scrollbar.draw(
|
|
grid,
|
|
(
|
|
(
|
|
get_x(upper_left),
|
|
get_y(bottom_right) - height - hist_height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height),
|
|
),
|
|
self.auto_complete.cursor(),
|
|
hist_height,
|
|
self.auto_complete.suggestions().len(),
|
|
);
|
|
change_colors(
|
|
grid,
|
|
(
|
|
(
|
|
get_x(upper_left),
|
|
get_y(bottom_right) - height - hist_height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height),
|
|
),
|
|
Color::Byte(197), // DeepPink2,
|
|
Color::Byte(174), //LightPink3
|
|
);
|
|
context.dirty_areas.push_back((
|
|
(
|
|
get_x(upper_left),
|
|
get_y(bottom_right) - height - hist_height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height),
|
|
));
|
|
(
|
|
(
|
|
get_x(upper_left) + 1,
|
|
get_y(bottom_right) - height - hist_height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height),
|
|
)
|
|
} else {
|
|
(
|
|
(
|
|
get_x(upper_left),
|
|
get_y(bottom_right) - height - hist_height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height),
|
|
)
|
|
};
|
|
let offset = if hist_height
|
|
> (self.auto_complete.suggestions().len() - self.auto_complete.cursor())
|
|
{
|
|
self.auto_complete.suggestions().len() - hist_height
|
|
} else {
|
|
self.auto_complete.cursor()
|
|
};
|
|
clear_area(grid, hist_area);
|
|
if hist_height > 0 {
|
|
change_colors(
|
|
grid,
|
|
hist_area,
|
|
Color::Byte(88), // DarkRed,
|
|
Color::Byte(174), //LightPink3
|
|
);
|
|
}
|
|
for (y_offset, s) in self
|
|
.auto_complete
|
|
.suggestions()
|
|
.iter()
|
|
.skip(offset)
|
|
.take(hist_height)
|
|
.enumerate()
|
|
{
|
|
let (x, y) = write_string_to_grid(
|
|
s.as_str(),
|
|
grid,
|
|
Color::Byte(88), // DarkRed,
|
|
Color::Byte(174), //LightPink3
|
|
Attr::Default,
|
|
(
|
|
set_y(
|
|
upper_left!(hist_area),
|
|
get_y(bottom_right!(hist_area)) - hist_height + y_offset + 1,
|
|
),
|
|
bottom_right!(hist_area),
|
|
),
|
|
true,
|
|
);
|
|
write_string_to_grid(
|
|
&s.description,
|
|
grid,
|
|
Color::White,
|
|
Color::Byte(174),
|
|
Attr::Default,
|
|
((x + 2, y), bottom_right!(hist_area)),
|
|
false,
|
|
);
|
|
if y_offset + offset == self.auto_complete.cursor() {
|
|
change_colors(
|
|
grid,
|
|
(
|
|
set_y(
|
|
upper_left!(hist_area),
|
|
get_y(bottom_right!(hist_area)) - hist_height + y_offset + 1,
|
|
),
|
|
set_y(
|
|
bottom_right!(hist_area),
|
|
get_y(bottom_right!(hist_area)) - hist_height + y_offset + 1,
|
|
),
|
|
),
|
|
Color::Byte(88), // DarkRed,
|
|
Color::Byte(173), //LightSalmon3
|
|
);
|
|
write_string_to_grid(
|
|
&s.as_str()[self.ex_buffer.as_str().len()..],
|
|
grid,
|
|
Color::Byte(97), // MediumPurple3,
|
|
Color::Byte(88), //LightPink3
|
|
Attr::Default,
|
|
(
|
|
(
|
|
get_y(upper_left)
|
|
+ self.ex_buffer.as_str().split_graphemes().len(),
|
|
get_y(bottom_right) - height + 1,
|
|
),
|
|
set_y(bottom_right, get_y(bottom_right) - height + 1),
|
|
),
|
|
true,
|
|
);
|
|
}
|
|
}
|
|
context.dirty_areas.push_back(hist_area);
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
if self.container.process_event(event, context) {
|
|
return true;
|
|
}
|
|
|
|
match event {
|
|
UIEvent::ChangeMode(m) => {
|
|
let offset = self.status.find('|').unwrap_or_else(|| self.status.len());
|
|
self.status.replace_range(..offset, &format!("{} ", m));
|
|
self.dirty = true;
|
|
self.mode = *m;
|
|
match m {
|
|
UIMode::Normal => {
|
|
self.height = 1;
|
|
if !self.ex_buffer.is_empty() {
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::Command(self.ex_buffer.as_str().to_string()));
|
|
}
|
|
if parse_command(&self.ex_buffer.as_str().as_bytes())
|
|
.to_full_result()
|
|
.is_ok()
|
|
&& self.cmd_history.last().map(String::as_str)
|
|
!= Some(self.ex_buffer.as_str())
|
|
{
|
|
crate::execute::history::log_cmd(self.ex_buffer.as_str().to_string());
|
|
self.cmd_history.push(self.ex_buffer.as_str().to_string());
|
|
}
|
|
self.ex_buffer.clear();
|
|
}
|
|
UIMode::Execute => {
|
|
self.height = 2;
|
|
}
|
|
_ => {}
|
|
};
|
|
}
|
|
UIEvent::ExInput(Key::Char('\t')) => {
|
|
if let Some(suggestion) = self.auto_complete.get_suggestion() {
|
|
let mut utext = UText::new(suggestion);
|
|
let len = utext.as_str().len();
|
|
utext.set_cursor(len);
|
|
self.container.set_dirty();
|
|
self.set_dirty();
|
|
self.ex_buffer = Field::Text(utext, None);
|
|
}
|
|
}
|
|
UIEvent::ExInput(Key::Char(c)) => {
|
|
self.dirty = true;
|
|
self.ex_buffer
|
|
.process_event(&mut UIEvent::InsertInput(Key::Char(*c)), context);
|
|
return true;
|
|
}
|
|
UIEvent::ExInput(Key::Paste(s)) => {
|
|
self.dirty = true;
|
|
self.ex_buffer
|
|
.process_event(&mut UIEvent::InsertInput(Key::Paste(s.clone())), context);
|
|
return true;
|
|
}
|
|
UIEvent::ExInput(Key::Ctrl('u')) => {
|
|
self.dirty = true;
|
|
self.ex_buffer.clear();
|
|
return true;
|
|
}
|
|
UIEvent::ExInput(k @ Key::Backspace) | UIEvent::ExInput(k @ Key::Ctrl('h')) => {
|
|
self.dirty = true;
|
|
self.ex_buffer
|
|
.process_event(&mut UIEvent::InsertInput(k.clone()), context);
|
|
return true;
|
|
}
|
|
UIEvent::ExInput(Key::Up) => {
|
|
self.auto_complete.dec_cursor();
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::ExInput(Key::Down) => {
|
|
self.auto_complete.inc_cursor();
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::ExInput(Key::Ctrl('p')) => {
|
|
let pos = self.ex_buffer_cmd_history_pos.map(|p| p + 1).unwrap_or(0);
|
|
let pos = Some(std::cmp::min(pos, self.cmd_history.len().saturating_sub(1)));
|
|
if pos != self.ex_buffer_cmd_history_pos {
|
|
let mut utext = UText::new(
|
|
self.cmd_history[self.cmd_history.len().saturating_sub(1) - pos.unwrap()]
|
|
.clone(),
|
|
);
|
|
let len = utext.as_str().len();
|
|
utext.set_cursor(len);
|
|
self.container.set_dirty();
|
|
self.set_dirty();
|
|
self.ex_buffer = Field::Text(utext, None);
|
|
self.ex_buffer_cmd_history_pos = pos;
|
|
self.dirty = true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
UIEvent::ExInput(Key::Ctrl('n')) => {
|
|
if Some(0) == self.ex_buffer_cmd_history_pos {
|
|
self.ex_buffer_cmd_history_pos = None;
|
|
self.ex_buffer.clear();
|
|
self.dirty = true;
|
|
} else if self.ex_buffer_cmd_history_pos.is_some() {
|
|
let pos = self.ex_buffer_cmd_history_pos.map(|p| p - 1);
|
|
let mut utext = UText::new(
|
|
self.cmd_history[self.cmd_history.len().saturating_sub(1) - pos.unwrap()]
|
|
.clone(),
|
|
);
|
|
let len = utext.as_str().len();
|
|
utext.set_cursor(len);
|
|
self.container.set_dirty();
|
|
self.set_dirty();
|
|
self.ex_buffer = Field::Text(utext, None);
|
|
self.ex_buffer_cmd_history_pos = pos;
|
|
self.dirty = true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
UIEvent::Resize => {
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::StatusEvent(StatusEvent::DisplayMessage(s)) => {
|
|
self.notifications.push_back(s.clone());
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::StatusEvent(StatusEvent::BufClear) => {
|
|
self.display_buffer.clear();
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::StatusEvent(StatusEvent::BufSet(s)) => {
|
|
self.display_buffer = s.clone();
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::StatusEvent(StatusEvent::UpdateStatus(ref mut s)) => {
|
|
self.status = format!("{} | {}", self.mode, std::mem::replace(s, String::new()));
|
|
self.dirty = true;
|
|
}
|
|
_ => {}
|
|
}
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty || self.container.is_dirty()
|
|
}
|
|
fn set_dirty(&mut self) {
|
|
self.dirty = true;
|
|
}
|
|
|
|
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
|
|
self.container.get_shortcuts(context)
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
|
|
fn can_quit_cleanly(&mut self, context: &Context) -> bool {
|
|
self.container.can_quit_cleanly(context)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct Progress {
|
|
description: String,
|
|
total_work: usize,
|
|
finished: usize,
|
|
id: ComponentId,
|
|
}
|
|
|
|
impl Progress {
|
|
pub fn new(s: String, total_work: usize) -> Self {
|
|
Progress {
|
|
description: s,
|
|
total_work,
|
|
finished: 0,
|
|
id: ComponentId::new_v4(),
|
|
}
|
|
}
|
|
|
|
pub fn add_work(&mut self, n: usize) {
|
|
if self.finished >= self.total_work {
|
|
return;
|
|
}
|
|
self.finished += n;
|
|
}
|
|
|
|
pub fn percentage(&self) -> usize {
|
|
if self.total_work > 0 {
|
|
100 * self.finished / self.total_work
|
|
} else {
|
|
0
|
|
}
|
|
}
|
|
|
|
pub fn description(&self) -> &str {
|
|
&self.description
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for Progress {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
// TODO display info
|
|
write!(f, "progress bar")
|
|
}
|
|
}
|
|
|
|
impl Component for Progress {
|
|
fn draw(&mut self, _grid: &mut CellBuffer, _area: Area, _context: &mut Context) {
|
|
unimplemented!()
|
|
}
|
|
fn process_event(&mut self, _event: &mut UIEvent, _context: &mut Context) -> bool {
|
|
false
|
|
}
|
|
fn set_dirty(&mut self) {}
|
|
fn is_dirty(&self) -> bool {
|
|
false
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct Tabbed {
|
|
pinned: usize,
|
|
children: Vec<Box<dyn Component>>,
|
|
cursor_pos: usize,
|
|
|
|
show_shortcuts: bool,
|
|
help_screen_cursor: (usize, usize),
|
|
help_content: CellBuffer,
|
|
help_curr_views: ShortcutMaps,
|
|
|
|
dirty: bool,
|
|
id: ComponentId,
|
|
}
|
|
|
|
impl Tabbed {
|
|
pub fn new(children: Vec<Box<dyn Component>>) -> Self {
|
|
let pinned = children.len();
|
|
Tabbed {
|
|
pinned,
|
|
children,
|
|
cursor_pos: 0,
|
|
show_shortcuts: false,
|
|
help_content: CellBuffer::default(),
|
|
help_screen_cursor: (0, 0),
|
|
help_curr_views: ShortcutMaps::default(),
|
|
dirty: true,
|
|
id: ComponentId::new_v4(),
|
|
}
|
|
}
|
|
fn draw_tabs(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let upper_left = upper_left!(area);
|
|
|
|
if self.children.is_empty() {
|
|
clear_area(grid, area);
|
|
return;
|
|
}
|
|
|
|
let mut x = get_x(upper_left);
|
|
let y: usize = get_y(upper_left);
|
|
for (idx, c) in self.children.iter().enumerate() {
|
|
let (fg, bg) = if idx == self.cursor_pos {
|
|
(Color::Default, Color::Default)
|
|
} else {
|
|
(Color::Byte(15), Color::Byte(8))
|
|
};
|
|
let (x_, _y_) = write_string_to_grid(
|
|
&format!(" {} ", c),
|
|
grid,
|
|
fg,
|
|
bg,
|
|
Attr::Default,
|
|
(set_x(upper_left, x), bottom_right!(area)),
|
|
false,
|
|
);
|
|
x = x_ + 1;
|
|
if idx == self.pinned.saturating_sub(1) {
|
|
x += 2;
|
|
}
|
|
if y != _y_ {
|
|
break;
|
|
}
|
|
}
|
|
let (cols, _) = grid.size();
|
|
let cslice: &mut [Cell] = grid;
|
|
//TODO: bounds check
|
|
let cslice_len = cslice.len();
|
|
for c in cslice[(y * cols) + x.saturating_sub(1)
|
|
..std::cmp::min((y * cols) + x.saturating_sub(1), cslice_len)]
|
|
.iter_mut()
|
|
{
|
|
c.set_bg(Color::Byte(7));
|
|
c.set_ch(' ');
|
|
}
|
|
|
|
if self.cursor_pos == self.children.len() - 1 {
|
|
cslice[(y * cols) + x].set_ch('▍');
|
|
cslice[(y * cols) + x].set_fg(Color::Byte(8));
|
|
cslice[(y * cols) + x].set_bg(Color::Default);
|
|
}
|
|
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
pub fn add_component(&mut self, new: Box<dyn Component>) {
|
|
self.children.push(new);
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for Tabbed {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
// TODO display info
|
|
write!(f, "tabs")
|
|
}
|
|
}
|
|
|
|
impl Component for Tabbed {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if self.dirty {
|
|
clear_area(
|
|
grid,
|
|
(
|
|
upper_left!(area),
|
|
set_x(upper_left!(area), get_x(bottom_right!(area))),
|
|
),
|
|
);
|
|
context.dirty_areas.push_back((
|
|
upper_left!(area),
|
|
set_x(upper_left!(area), get_x(bottom_right!(area))),
|
|
));
|
|
}
|
|
|
|
/* If children are dirty but self isn't and the shortcuts panel is visible, it will get
|
|
* overwritten. */
|
|
let must_redraw_shortcuts: bool = self.show_shortcuts && !self.dirty && self.is_dirty();
|
|
|
|
/* children should be drawn after the shortcuts/help panel lest they overwrite the panel on
|
|
* the grid. the drawing order is determined by the dirty_areas queue which is LIFO */
|
|
if self.children.len() > 1 {
|
|
self.draw_tabs(
|
|
grid,
|
|
(
|
|
upper_left!(area),
|
|
set_x(upper_left!(area), get_x(bottom_right!(area))),
|
|
),
|
|
context,
|
|
);
|
|
let y = get_y(upper_left!(area));
|
|
self.children[self.cursor_pos].draw(
|
|
grid,
|
|
(set_y(upper_left!(area), y + 1), bottom_right!(area)),
|
|
context,
|
|
);
|
|
} else {
|
|
self.children[self.cursor_pos].draw(grid, area, context);
|
|
}
|
|
|
|
if (self.show_shortcuts && self.dirty) || must_redraw_shortcuts {
|
|
let area = (
|
|
pos_inc(upper_left!(area), (2, 1)),
|
|
set_x(
|
|
bottom_right!(area),
|
|
get_x(bottom_right!(area)).saturating_sub(2),
|
|
),
|
|
);
|
|
context.dirty_areas.push_back(area);
|
|
clear_area(grid, area);
|
|
create_box(grid, area);
|
|
let area = (
|
|
pos_inc(upper_left!(area), (3, 2)),
|
|
set_x(
|
|
bottom_right!(area),
|
|
get_x(bottom_right!(area)).saturating_sub(3),
|
|
),
|
|
);
|
|
let children_maps = self.children[self.cursor_pos].get_shortcuts(context);
|
|
if children_maps.is_empty() {
|
|
return;
|
|
}
|
|
if (children_maps == self.help_curr_views) && must_redraw_shortcuts {
|
|
let (width, height) = self.help_content.size();
|
|
let (cols, rows) = (width!(area), height!(area));
|
|
copy_area(
|
|
grid,
|
|
&self.help_content,
|
|
area,
|
|
(
|
|
(
|
|
std::cmp::min(
|
|
(width - 1).saturating_sub(cols),
|
|
self.help_screen_cursor.0,
|
|
),
|
|
std::cmp::min(
|
|
(height - 1).saturating_sub(rows),
|
|
self.help_screen_cursor.1,
|
|
),
|
|
),
|
|
(
|
|
std::cmp::min(self.help_screen_cursor.0 + cols, width - 1),
|
|
std::cmp::min(self.help_screen_cursor.1 + rows, height - 1),
|
|
),
|
|
),
|
|
);
|
|
self.dirty = false;
|
|
return;
|
|
}
|
|
self.help_curr_views = children_maps;
|
|
let mut max_length = 5;
|
|
let mut max_width = "Use Up, Down, Left, Right to scroll.".len() + 3;
|
|
for (desc, shortcuts) in self.help_curr_views.iter() {
|
|
max_length += shortcuts.len() + 3;
|
|
max_width = std::cmp::max(
|
|
max_width,
|
|
std::cmp::max(
|
|
desc.len(),
|
|
shortcuts.keys().map(|k| k.len() + 5).max().unwrap_or(0),
|
|
),
|
|
);
|
|
}
|
|
self.help_content =
|
|
CellBuffer::new_with_context(max_width, max_length + 2, Cell::default(), context);
|
|
let (width, height) = self.help_content.size();
|
|
let (cols, rows) = (width!(area), height!(area));
|
|
if cols == 0 || rows == 0 {
|
|
return;
|
|
}
|
|
/* trim cursor if it's bigger than the help screen */
|
|
self.help_screen_cursor = (
|
|
std::cmp::min(width.saturating_sub(cols), self.help_screen_cursor.0),
|
|
std::cmp::min(height.saturating_sub(rows), self.help_screen_cursor.1),
|
|
);
|
|
|
|
/* In this case we will be scrolling, so show the user how to do it */
|
|
if height.wrapping_div(rows) > 0 || width.wrapping_div(cols) > 0 {
|
|
write_string_to_grid(
|
|
"Use Up, Down, Left, Right to scroll.",
|
|
&mut self.help_content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((2, 0), (max_width.saturating_sub(2), max_length - 1)),
|
|
false,
|
|
);
|
|
}
|
|
let mut idx = 0;
|
|
for (desc, shortcuts) in self.help_curr_views.iter() {
|
|
write_string_to_grid(
|
|
desc,
|
|
&mut self.help_content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((2, 2 + idx), (max_width.saturating_sub(2), max_length - 1)),
|
|
false,
|
|
);
|
|
idx += 2;
|
|
let mut shortcuts = shortcuts.iter().collect::<Vec<_>>();
|
|
shortcuts.sort_unstable_by_key(|(ref k, _)| *k);
|
|
for (k, v) in shortcuts {
|
|
debug!(&(k, v));
|
|
let (x, y) = write_string_to_grid(
|
|
&k,
|
|
&mut self.help_content,
|
|
Color::Byte(29),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((2, 2 + idx), (max_width.saturating_sub(2), max_length - 1)),
|
|
false,
|
|
);
|
|
write_string_to_grid(
|
|
&format!("{}", v),
|
|
&mut self.help_content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((x + 2, y), (max_width.saturating_sub(2), max_length - 1)),
|
|
false,
|
|
);
|
|
idx += 1;
|
|
}
|
|
idx += 1;
|
|
}
|
|
copy_area(
|
|
grid,
|
|
&self.help_content,
|
|
area,
|
|
(
|
|
(
|
|
std::cmp::min((width - 1).saturating_sub(cols), self.help_screen_cursor.0),
|
|
std::cmp::min((height - 1).saturating_sub(rows), self.help_screen_cursor.1),
|
|
),
|
|
(
|
|
std::cmp::min(self.help_screen_cursor.0 + cols, width - 1),
|
|
std::cmp::min(self.help_screen_cursor.1 + rows, height - 1),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
self.dirty = false;
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
|
|
match *event {
|
|
UIEvent::Input(Key::Alt(no)) if no >= '1' && no <= '9' => {
|
|
let no = no as usize - '1' as usize;
|
|
if no < self.children.len() {
|
|
self.cursor_pos = no % self.children.len();
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateStatus(
|
|
self.children[self.cursor_pos]
|
|
.get_status(context)
|
|
.unwrap_or_default(),
|
|
)));
|
|
self.set_dirty();
|
|
}
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char('T')) => {
|
|
self.cursor_pos = (self.cursor_pos + 1) % self.children.len();
|
|
context
|
|
.replies
|
|
.push_back(UIEvent::StatusEvent(StatusEvent::UpdateStatus(
|
|
self.children[self.cursor_pos]
|
|
.get_status(context)
|
|
.unwrap_or_default(),
|
|
)));
|
|
self.set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Input(Key::Char('?')) => {
|
|
if self.show_shortcuts {
|
|
/* children below the shortcut overlay must be redrawn */
|
|
self.set_dirty();
|
|
}
|
|
self.show_shortcuts = !self.show_shortcuts;
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(NewDraft(account_idx, ref draft))) => {
|
|
let mut composer = Composer::new(account_idx);
|
|
if let Some(draft) = draft {
|
|
composer.set_draft(draft.clone());
|
|
}
|
|
self.add_component(Box::new(composer));
|
|
self.cursor_pos = self.children.len() - 1;
|
|
self.children[self.cursor_pos].set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(Reply(coordinates, msg))) => {
|
|
self.add_component(Box::new(Composer::with_context(coordinates, msg, context)));
|
|
self.cursor_pos = self.children.len() - 1;
|
|
self.children[self.cursor_pos].set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(Edit(account_pos, msg))) => {
|
|
let composer = match Composer::edit(account_pos, msg, context) {
|
|
Ok(c) => c,
|
|
Err(e) => {
|
|
context.replies.push_back(UIEvent::Notification(
|
|
Some("Failed to open e-mail".to_string()),
|
|
e.to_string(),
|
|
Some(NotificationType::ERROR),
|
|
));
|
|
log(
|
|
format!(
|
|
"Failed to open envelope {}: {}",
|
|
context.accounts[account_pos]
|
|
.get_env(&msg)
|
|
.message_id_display(),
|
|
e.to_string()
|
|
),
|
|
ERROR,
|
|
);
|
|
return true;
|
|
}
|
|
};
|
|
self.add_component(Box::new(composer));
|
|
self.cursor_pos = self.children.len() - 1;
|
|
self.children[self.cursor_pos].set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(New(ref mut e))) if e.is_some() => {
|
|
self.add_component(e.take().unwrap());
|
|
self.cursor_pos = self.children.len() - 1;
|
|
self.children[self.cursor_pos].set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(Close)) => {
|
|
if self.pinned > self.cursor_pos {
|
|
return true;
|
|
}
|
|
let id = self.children[self.cursor_pos].id();
|
|
self.children[self.cursor_pos].kill(id, context);
|
|
self.set_dirty();
|
|
return true;
|
|
}
|
|
UIEvent::Action(Tab(Kill(id))) => {
|
|
if self.pinned > self.cursor_pos {
|
|
return true;
|
|
}
|
|
if let Some(c_idx) = self.children.iter().position(|x| x.id() == id) {
|
|
self.children.remove(c_idx);
|
|
self.cursor_pos = 0;
|
|
self.set_dirty();
|
|
return true;
|
|
} else {
|
|
debug!(
|
|
"DEBUG: Child component with id {:?} not found.\nList: {:?}",
|
|
id, self.children
|
|
);
|
|
}
|
|
}
|
|
UIEvent::Resize => {
|
|
self.dirty = true;
|
|
}
|
|
UIEvent::Input(ref k) if self.show_shortcuts => {
|
|
match k {
|
|
Key::Up => {
|
|
self.help_screen_cursor.1 = self.help_screen_cursor.1.saturating_sub(1);
|
|
}
|
|
Key::Down => {
|
|
self.help_screen_cursor.1 = self.help_screen_cursor.1 + 1;
|
|
}
|
|
Key::Left => {
|
|
self.help_screen_cursor.0 = self.help_screen_cursor.0.saturating_sub(1);
|
|
}
|
|
Key::Right => {
|
|
self.help_screen_cursor.0 = self.help_screen_cursor.0 + 1;
|
|
}
|
|
_ => {
|
|
/* ignore, don't pass to components below the shortcut panel */
|
|
return false;
|
|
}
|
|
}
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
_ => {}
|
|
}
|
|
self.children[self.cursor_pos].process_event(event, context)
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty || self.children[self.cursor_pos].is_dirty()
|
|
}
|
|
fn set_dirty(&mut self) {
|
|
self.dirty = true;
|
|
self.children[self.cursor_pos].set_dirty();
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
|
|
fn can_quit_cleanly(&mut self, context: &Context) -> bool {
|
|
for (i, c) in self.children.iter_mut().enumerate() {
|
|
if !c.can_quit_cleanly(context) {
|
|
self.cursor_pos = i;
|
|
self.set_dirty();
|
|
return false;
|
|
}
|
|
}
|
|
true
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Copy, PartialEq, Clone)]
|
|
enum SelectorCursor {
|
|
/// Cursor is at an entry
|
|
Entry(usize),
|
|
/// Cursor is located on the Ok button
|
|
Ok,
|
|
/// Cursor is located on the Cancel button
|
|
Cancel,
|
|
}
|
|
|
|
/// Shows a little window with options for user to select.
|
|
///
|
|
/// Instantiate with Selector::new(). Set single_only to true if user should only choose one of the
|
|
/// options. After passing input events to this component, check Selector::is_done to see if the
|
|
/// user has finalised their choices. Collect the choices by consuming the Selector with
|
|
/// Selector::collect()
|
|
#[derive(Debug, PartialEq, Clone)]
|
|
pub struct Selector<T: PartialEq + Debug + Clone + Sync + Send> {
|
|
/// allow only one selection
|
|
single_only: bool,
|
|
entries: Vec<(T, bool)>,
|
|
pub content: CellBuffer,
|
|
|
|
cursor: SelectorCursor,
|
|
|
|
/// If true, user has finished their selection
|
|
done: bool,
|
|
dirty: bool,
|
|
id: ComponentId,
|
|
}
|
|
|
|
impl<T: PartialEq + Debug + Clone + Sync + Send> fmt::Display for Selector<T> {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
Display::fmt("Selector", f)
|
|
}
|
|
}
|
|
|
|
impl<T: PartialEq + Debug + Clone + Sync + Send> Component for Selector<T> {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
let (width, height) = self.content.size();
|
|
copy_area_with_break(grid, &self.content, area, ((0, 0), (width, height)));
|
|
context.dirty_areas.push_back(area);
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, _context: &mut Context) -> bool {
|
|
let (width, height) = self.content.size();
|
|
match (event, self.cursor) {
|
|
(UIEvent::Input(Key::Char('\n')), _) if self.single_only => {
|
|
/* User can only select one entry, so Enter key finalises the selection */
|
|
self.done = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Char('\n')), SelectorCursor::Entry(c)) if !self.single_only => {
|
|
/* User can select multiple entries, so Enter key toggles the entry under the
|
|
* cursor */
|
|
self.entries[c].1 = !self.entries[c].1;
|
|
if self.entries[c].1 {
|
|
write_string_to_grid(
|
|
"x",
|
|
&mut self.content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((3, c + 2), (width - 2, c + 2)),
|
|
false,
|
|
);
|
|
} else {
|
|
write_string_to_grid(
|
|
" ",
|
|
&mut self.content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((3, c + 2), (width - 2, c + 2)),
|
|
false,
|
|
);
|
|
}
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Char('\n')), SelectorCursor::Ok) if !self.single_only => {
|
|
self.done = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Char('\n')), SelectorCursor::Cancel) if !self.single_only => {
|
|
for e in self.entries.iter_mut() {
|
|
e.1 = false;
|
|
}
|
|
self.done = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Up), SelectorCursor::Entry(c)) if c > 0 => {
|
|
if self.single_only {
|
|
// Redraw selection
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (width - 2, c + 2)),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 1), (width - 2, c + 1)),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
self.entries[c].1 = false;
|
|
self.entries[c - 1].1 = true;
|
|
} else {
|
|
// Redraw cursor
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (4, c + 2)),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 1), (4, c + 1)),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
}
|
|
self.cursor = SelectorCursor::Entry(c - 1);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Up), SelectorCursor::Ok)
|
|
| (UIEvent::Input(Key::Up), SelectorCursor::Cancel) => {
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2, height - 3),
|
|
(width - 1, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
let c = self.entries.len().saturating_sub(1);
|
|
self.cursor = SelectorCursor::Entry(c);
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (4, c + 2)),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Down), SelectorCursor::Entry(c))
|
|
if c < self.entries.len().saturating_sub(1) =>
|
|
{
|
|
if self.single_only {
|
|
// Redraw selection
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (width - 2, c + 2)),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 3), (width - 2, c + 3)),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
self.entries[c].1 = false;
|
|
self.entries[c + 1].1 = true;
|
|
} else {
|
|
// Redraw cursor
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (4, c + 2)),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 3), (4, c + 3)),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
}
|
|
self.cursor = SelectorCursor::Entry(c + 1);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Down), SelectorCursor::Entry(c)) if !self.single_only => {
|
|
self.cursor = SelectorCursor::Ok;
|
|
change_colors(
|
|
&mut self.content,
|
|
((2, c + 2), (4, c + 2)),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2, height - 3),
|
|
((width - "OK Cancel".len()) / 2 + 1, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Down), _) | (UIEvent::Input(Key::Up), _) => return true,
|
|
(UIEvent::Input(Key::Right), SelectorCursor::Ok) => {
|
|
self.cursor = SelectorCursor::Cancel;
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2, height - 3),
|
|
((width - "OK Cancel".len()) / 2 + 1, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2 + 6, height - 3),
|
|
((width - "OK Cancel".len()) / 2 + 11, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Left), SelectorCursor::Cancel) => {
|
|
self.cursor = SelectorCursor::Ok;
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2, height - 3),
|
|
((width - "OK Cancel".len()) / 2 + 1, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Byte(8),
|
|
);
|
|
change_colors(
|
|
&mut self.content,
|
|
(
|
|
((width - "OK Cancel".len()) / 2 + 6, height - 3),
|
|
((width - "OK Cancel".len()) / 2 + 11, height - 3),
|
|
),
|
|
Color::Default,
|
|
Color::Default,
|
|
);
|
|
self.dirty = true;
|
|
return true;
|
|
}
|
|
(UIEvent::Input(Key::Left), _) | (UIEvent::Input(Key::Right), _) => return true,
|
|
_ => {}
|
|
}
|
|
|
|
false
|
|
}
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
}
|
|
fn set_dirty(&mut self) {
|
|
self.dirty = true;
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
self.id
|
|
}
|
|
fn set_id(&mut self, id: ComponentId) {
|
|
self.id = id;
|
|
}
|
|
}
|
|
|
|
impl<T: PartialEq + Debug + Clone + Sync + Send> Selector<T> {
|
|
pub fn new(
|
|
title: &str,
|
|
entries: Vec<(T, String)>,
|
|
single_only: bool,
|
|
context: &Context,
|
|
) -> Selector<T> {
|
|
let width = std::cmp::max(
|
|
"OK Cancel".len(),
|
|
std::cmp::max(
|
|
entries
|
|
.iter()
|
|
.max_by_key(|e| e.1.len())
|
|
.map(|v| v.1.len())
|
|
.unwrap_or(0),
|
|
title.len(),
|
|
),
|
|
) + 7;
|
|
let height = entries.len()
|
|
+ 4
|
|
+ if single_only {
|
|
0
|
|
} else {
|
|
/* Extra room for buttons Okay/Cancel */
|
|
3
|
|
};
|
|
let mut content =
|
|
CellBuffer::new_with_context(width, height, Cell::with_char(' '), context);
|
|
let ascii_drawing = context.settings.terminal.ascii_drawing;
|
|
write_string_to_grid(
|
|
if ascii_drawing { "+-" } else { "┏━" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((0, 0), (width - 1, 0)),
|
|
false,
|
|
);
|
|
let (x, _) = write_string_to_grid(
|
|
title,
|
|
&mut content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((2, 0), (width - 1, 0)),
|
|
false,
|
|
);
|
|
for i in 1..(width - title.len() - 1) {
|
|
write_string_to_grid(
|
|
if ascii_drawing { "-" } else { "━" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((x + i, 0), (width - 1, 0)),
|
|
false,
|
|
);
|
|
}
|
|
write_string_to_grid(
|
|
if ascii_drawing { "+" } else { "┓" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((width - 1, 0), (width - 1, 0)),
|
|
false,
|
|
);
|
|
write_string_to_grid(
|
|
if ascii_drawing { "+" } else { "┗" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((0, height - 1), (width - 1, height - 1)),
|
|
false,
|
|
);
|
|
write_string_to_grid(
|
|
&if ascii_drawing {
|
|
"-".repeat(width - 2)
|
|
} else {
|
|
"━".repeat(width - 2)
|
|
},
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((1, height - 1), (width - 2, height - 1)),
|
|
false,
|
|
);
|
|
write_string_to_grid(
|
|
if ascii_drawing { "+" } else { "┛" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((width - 1, height - 1), (width - 1, height - 1)),
|
|
false,
|
|
);
|
|
for i in 1..height - 1 {
|
|
write_string_to_grid(
|
|
if ascii_drawing { "|" } else { "┃" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((0, i), (width - 1, i)),
|
|
false,
|
|
);
|
|
write_string_to_grid(
|
|
if ascii_drawing { "|" } else { "┃" },
|
|
&mut content,
|
|
Color::Byte(8),
|
|
Color::Default,
|
|
Attr::Default,
|
|
((width - 1, i), (width - 1, i)),
|
|
false,
|
|
);
|
|
}
|
|
if single_only {
|
|
for (i, e) in entries.iter().enumerate() {
|
|
write_string_to_grid(
|
|
&e.1,
|
|
&mut content,
|
|
Color::Default,
|
|
if i == 0 {
|
|
Color::Byte(8)
|
|
} else {
|
|
Color::Default
|
|
},
|
|
Attr::Default,
|
|
((2, i + 2), (width - 1, i + 2)),
|
|
false,
|
|
);
|
|
}
|
|
} else {
|
|
for (i, e) in entries.iter().enumerate() {
|
|
write_string_to_grid(
|
|
&format!("[ ] {}", e.1),
|
|
&mut content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Default,
|
|
((2, i + 2), (width - 1, i + 2)),
|
|
false,
|
|
);
|
|
if i == 0 {
|
|
content[(2, i + 2)].set_bg(Color::Byte(8));
|
|
content[(3, i + 2)].set_bg(Color::Byte(8));
|
|
content[(4, i + 2)].set_bg(Color::Byte(8));
|
|
}
|
|
}
|
|
write_string_to_grid(
|
|
"OK Cancel",
|
|
&mut content,
|
|
Color::Default,
|
|
Color::Default,
|
|
Attr::Bold,
|
|
(
|
|
((width - "OK Cancel".len()) / 2, height - 3),
|
|
(width - 1, height - 3),
|
|
),
|
|
false,
|
|
);
|
|
}
|
|
let mut identifiers: Vec<(T, bool)> =
|
|
entries.into_iter().map(|(id, _)| (id, false)).collect();
|
|
if single_only {
|
|
/* set default option */
|
|
identifiers[0].1 = true;
|
|
}
|
|
|
|
Selector {
|
|
single_only,
|
|
entries: identifiers,
|
|
content,
|
|
cursor: SelectorCursor::Entry(0),
|
|
done: false,
|
|
dirty: true,
|
|
id: ComponentId::new_v4(),
|
|
}
|
|
}
|
|
|
|
pub fn is_done(&self) -> bool {
|
|
self.done
|
|
}
|
|
|
|
pub fn collect(self) -> Vec<T> {
|
|
self.entries
|
|
.into_iter()
|
|
.filter(|v| v.1)
|
|
.map(|(id, _)| id)
|
|
.collect()
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct RawBuffer {
|
|
pub buf: CellBuffer,
|
|
cursor: (usize, usize),
|
|
dirty: bool,
|
|
}
|
|
|
|
impl fmt::Display for RawBuffer {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
Display::fmt("Raw buffer", f)
|
|
}
|
|
}
|
|
|
|
impl Component for RawBuffer {
|
|
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
|
|
if self.dirty {
|
|
clear_area(grid, area);
|
|
let (width, height) = self.buf.size();
|
|
let (cols, rows) = (width!(area), height!(area));
|
|
self.cursor = (
|
|
std::cmp::min(width.saturating_sub(cols), self.cursor.0),
|
|
std::cmp::min(height.saturating_sub(rows), self.cursor.1),
|
|
);
|
|
clear_area(grid, area);
|
|
copy_area(
|
|
grid,
|
|
&self.buf,
|
|
area,
|
|
(
|
|
(
|
|
std::cmp::min((width - 1).saturating_sub(cols), self.cursor.0),
|
|
std::cmp::min((height - 1).saturating_sub(rows), self.cursor.1),
|
|
),
|
|
(
|
|
std::cmp::min(self.cursor.0 + cols, width - 1),
|
|
std::cmp::min(self.cursor.1 + rows, height - 1),
|
|
),
|
|
),
|
|
);
|
|
context.dirty_areas.push_back(area);
|
|
self.dirty = false;
|
|
}
|
|
}
|
|
fn process_event(&mut self, event: &mut UIEvent, _context: &mut Context) -> bool {
|
|
match *event {
|
|
UIEvent::Input(Key::Left) => {
|
|
self.cursor.0 = self.cursor.0.saturating_sub(1);
|
|
self.dirty = true;
|
|
true
|
|
}
|
|
UIEvent::Input(Key::Right) => {
|
|
self.cursor.0 = self.cursor.0 + 1;
|
|
self.dirty = true;
|
|
true
|
|
}
|
|
UIEvent::Input(Key::Up) => {
|
|
self.cursor.1 = self.cursor.1.saturating_sub(1);
|
|
self.dirty = true;
|
|
true
|
|
}
|
|
UIEvent::Input(Key::Down) => {
|
|
self.cursor.1 = self.cursor.1 + 1;
|
|
self.dirty = true;
|
|
true
|
|
}
|
|
_ => false,
|
|
}
|
|
}
|
|
|
|
fn is_dirty(&self) -> bool {
|
|
self.dirty
|
|
}
|
|
|
|
fn set_dirty(&mut self) {
|
|
self.dirty = true;
|
|
}
|
|
|
|
fn id(&self) -> ComponentId {
|
|
ComponentId::nil()
|
|
}
|
|
}
|
|
|
|
impl RawBuffer {
|
|
pub fn new(buf: CellBuffer) -> Self {
|
|
RawBuffer {
|
|
buf,
|
|
dirty: true,
|
|
cursor: (0, 0),
|
|
}
|
|
}
|
|
}
|