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use std::io;
use std::path;
use std::process::{Command, Output};
use tui::layout::{Constraint, Direction, Layout, Rect};
use tui::widgets::{Block, Borders};
use crate::context::AppContext;
use crate::ui::TuiBackend;
pub fn preview_path_with_script(
context: &AppContext,
backend: &mut TuiBackend,
p: path::PathBuf,
) -> io::Result<Output> {
let preview_options = context.config_ref().preview_options_ref();
let config = context.config_ref();
match preview_options.preview_script.as_ref() {
None => Err(io::Error::new(
io::ErrorKind::Other,
"No preview script specified",
)),
Some(script) => {
let area = backend.terminal.as_ref().unwrap().size().unwrap();
let constraints: &[Constraint; 3] = &config.display_options_ref().default_layout;
let layout_rect = if config.display_options_ref().show_borders() {
let area = Rect {
y: area.top() + 1,
height: area.height - 2,
..area
};
let block = Block::default().borders(Borders::ALL);
let inner = block.inner(area);
let layout_rect = Layout::default()
.direction(Direction::Horizontal)
.constraints(constraints.as_ref())
.split(inner);
let block = Block::default().borders(Borders::LEFT);
let inner3 = block.inner(layout_rect[2]);
inner3
} else {
let layout_rect = Layout::default()
.direction(Direction::Horizontal)
.vertical_margin(1)
.constraints(constraints.as_ref())
.split(area);
layout_rect[2]
};
let file_full_path = p.as_path();
let preview_width = layout_rect.width;
let preview_height = layout_rect.height;
let image_cache = 0;
let preview_image = if preview_options.preview_images { 1 } else { 0 };
// spawn preview process
Command::new(script)
.arg(file_full_path)
.arg(preview_width.to_string())
.arg(preview_height.to_string())
.arg(image_cache.to_string())
.arg(preview_image.to_string())
.output()
}
}
}
pub fn preview_with_script(context: &AppContext, backend: &mut TuiBackend) -> io::Result<Output> {
let curr_tab = context.tab_context_ref().curr_tab_ref();
let child_list = curr_tab.child_list_ref();
let preview_options = context.config_ref().preview_options_ref();
let config = context.config_ref();
match child_list.and_then(|list| list.curr_entry_ref()) {
None => Err(io::Error::new(io::ErrorKind::Other, "No file to preview")),
Some(entry) => preview_path_with_script(context, backend, entry.file_path().to_path_buf()),
}
}
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