Merge pull request #472 from yazgoo/tranparency-on-start

Author: yazgoo

Cargo.lock

@@ -30,7 +30,7 @@ log = "0.4.17"
 env_logger = "0.9.0"
 time = "0.3.13"
 clap = "3.2.22"
-tuikit = "0.4.6"
+tuikit = "0.5.0"
 vte = "0.11.0"
 fuzzy-matcher = "0.3.7"
 rayon = "1.5.3"

Cargo.toml

@@ -54,6 +54,7 @@ Usage: sk [options]
     --keep-right         Keep the right end of the line visible on overflow
     --skip-to-pattern    Line starts with the start of matched pattern
     --no-clear-if-empty  Do not clear previous items if command returns empty result
+    --no-clear-start     Do not clear on start
     --show-cmd-error     Send command error message if command fails
 
   Layout
@@ -92,6 +93,7 @@ Usage: sk [options]
     --expect KEYS        comma seperated keys that can be used to complete skim
     --read0              Read input delimited by ASCII NUL(\\0) characters
     --print0             Print output delimited by ASCII NUL(\\0) characters
+    --no-clear-start     Do not clear screen on start
     --no-clear           Do not clear screen on exit
     --print-query        Print query as the first line
     --print-cmd          Print command query as the first line (after --print-query)
@@ -196,6 +198,7 @@ fn real_main() -> Result<i32, std::io::Error> {
         .arg(Arg::with_name("height").long("height").multiple(true).takes_value(true).default_value("100%"))
         .arg(Arg::with_name("no-height").long("no-height").multiple(true))
         .arg(Arg::with_name("no-clear").long("no-clear").multiple(true))
+        .arg(Arg::with_name("no-clear-start").long("no-clear-start").multiple(true))
         .arg(Arg::with_name("no-mouse").long("no-mouse").multiple(true))
         .arg(Arg::with_name("preview").long("preview").multiple(true).takes_value(true))
         .arg(Arg::with_name("preview-window").long("preview-window").multiple(true).takes_value(true).default_value("right:50%"))
@@ -420,6 +423,7 @@ fn parse_options(options: &ArgMatches) -> SkimOptions<'_> {
         .no_hscroll(options.is_present("no-hscroll"))
         .no_mouse(options.is_present("no-mouse"))
         .no_clear(options.is_present("no-clear"))
+        .no_clear_start(options.is_present("no-clear-start"))
         .tabstop(options.values_of("tabstop").and_then(|vals| vals.last()))
         .tiebreak(options.values_of("tiebreak").map(|x| x.collect::<Vec<_>>().join(",")))
         .tac(options.is_present("tac"))

src/bin/main.rs

@@ -5,7 +5,7 @@ use crate::event::{Event, EventHandler};
 use crate::item::ItemPool;
 use crate::theme::ColorTheme;
 use crate::theme::DEFAULT_THEME;
-use crate::util::{print_item, str_lines, LinePrinter};
+use crate::util::{clear_canvas, print_item, str_lines, LinePrinter};
 use crate::{DisplayContext, Matches, SkimOptions};
 use defer_drop::DeferDrop;
 use std::cmp::max;
@@ -89,6 +89,7 @@ impl Draw for Header {
         }
 
         canvas.clear()?;
+        clear_canvas(canvas)?;
 
         for (idx, header) in self.header.iter().enumerate() {
             // print fixed header(specified by --header)

src/header.rs

@@ -312,6 +312,8 @@ impl Skim {
                     .min_height(min_height)
                     .height(height)
                     .clear_on_exit(!options.no_clear)
+                    .disable_alternate_screen(options.no_clear_start)
+                    .clear_on_start(!options.no_clear_start)
                     .hold(options.select1 || options.exit0 || options.sync),
             )
             .unwrap(),

src/lib.rs

@@ -27,6 +27,7 @@ use crate::reader::{Reader, ReaderControl};
 use crate::selection::Selection;
 use crate::spinlock::SpinLock;
 use crate::theme::ColorTheme;
+use crate::util::clear_canvas;
 use crate::util::{depends_on_items, inject_command, margin_string_to_size, parse_margin, InjectContext};
 use crate::{FuzzyAlgorithm, MatchEngineFactory, MatchRange, SkimItem};
 use std::cmp::max;
@@ -884,6 +885,7 @@ impl Draw for Status {
 
         canvas.clear()?;
         let (screen_width, _) = canvas.size()?;
+        clear_canvas(canvas)?;
 
         let info_attr = self.theme.info();
         let info_attr_bold = Attr {

src/model.rs

@@ -31,6 +31,7 @@ pub struct SkimOptions<'a> {
     pub margin: Option<&'a str>,
     pub no_height: bool,
     pub no_clear: bool,
+    pub no_clear_start: bool,
     pub min_height: Option<&'a str>,
     pub height: Option<&'a str>,
     pub preview: Option<&'a str>,
@@ -81,6 +82,7 @@ impl<'a> Default for SkimOptions<'a> {
             margin: Some("0,0,0,0"),
             no_height: false,
             no_clear: false,
+            no_clear_start: false,
             min_height: Some("10"),
             height: Some("100%"),
             preview: None,

src/options.rs

@@ -16,7 +16,7 @@ use tuikit::prelude::{Event as TermEvent, *};
 use crate::ansi::{ANSIParser, AnsiString};
 use crate::event::{Event, EventHandler, UpdateScreen};
 use crate::spinlock::SpinLock;
-use crate::util::{atoi, depends_on_items, inject_command, InjectContext};
+use crate::util::{atoi, clear_canvas, depends_on_items, inject_command, InjectContext};
 use crate::{ItemPreview, PreviewContext, PreviewPosition, SkimItem};
 
 const TAB_STOP: usize = 8;
@@ -343,6 +343,7 @@ impl Draw for Previewer {
     fn draw(&self, canvas: &mut dyn Canvas) -> DrawResult<()> {
         canvas.clear()?;
         let (screen_width, screen_height) = canvas.size()?;
+        clear_canvas(canvas)?;
 
         if screen_width == 0 || screen_height == 0 {
             return Ok(());

src/previewer.rs

@@ -7,6 +7,7 @@ use unicode_width::UnicodeWidthStr;
 use crate::event::{Event, EventHandler, UpdateScreen};
 use crate::options::SkimOptions;
 use crate::theme::{ColorTheme, DEFAULT_THEME};
+use crate::util::clear_canvas;
 
 #[derive(Clone, Copy, PartialEq)]
 enum QueryMode {
@@ -546,6 +547,7 @@ impl Draw for Query {
         let before = self.get_before();
         let after = self.get_after();
         let prompt = self.get_prompt();
+        clear_canvas(canvas)?;
 
         let prompt_width = canvas.print_with_attr(0, 0, prompt, self.theme.prompt())?;
         let before_width = canvas.print_with_attr(0, prompt_width, &before, self.theme.query())?;

src/query.rs

@@ -12,6 +12,7 @@ use crate::global::current_run_num;
 use crate::item::MatchedItem;
 use crate::orderedvec::OrderedVec;
 use crate::theme::{ColorTheme, DEFAULT_THEME};
+use crate::util::clear_canvas;
 use crate::util::{print_item, reshape_string, LinePrinter};
 use crate::{DisplayContext, MatchRange, Matches, Selector, SkimItem, SkimOptions};
 use regex::Regex;
@@ -532,6 +533,8 @@ impl Draw for Selection {
         let max_upper = self.item_cursor + screen_height;
         let item_idx_upper = min(max_upper, self.items.len());
 
+        clear_canvas(canvas)?;
+
         for item_idx in item_idx_lower..item_idx_upper {
             let line_cursor = item_idx - item_idx_lower;
             let line_no = if self.reverse {