feat: truncate long items in the file list (#2754)

Author: sxyazi

yazi-plugin/preset/components/current.lua

@@ -32,15 +32,16 @@ function Current:redraw()
 		return self:empty()
 	end
 
-	local entities, linemodes = {}, {}
+	local left, right = {}, {}
 	for _, f in ipairs(files) do
-		entities[#entities + 1] = Entity:new(f):redraw()
-		linemodes[#linemodes + 1] = Linemode:new(f):redraw()
+		left[#left + 1] = Entity:new(f):redraw()
+		right[#right + 1] = Linemode:new(f):redraw()
+		left[#left]:truncate { max = math.max(0, self._area.w - right[#right]:width()) }
 	end
 
 	return {
-		ui.List(entities):area(self._area),
-		ui.Text(linemodes):area(self._area):align(ui.Text.RIGHT),
+		ui.List(left):area(self._area),
+		ui.Text(right):area(self._area):align(ui.Text.RIGHT),
 	}
 end
 

yazi-plugin/preset/components/parent.lua

@@ -17,13 +17,13 @@ function Parent:redraw()
 		return {}
 	end
 
-	local entities = {}
+	local items = {}
 	for _, f in ipairs(self._folder.window) do
-		entities[#entities + 1] = Entity:new(f):redraw()
+		items[#items + 1] = Entity:new(f):redraw():truncate { max = self._area.w }
 	end
 
 	return {
-		ui.List(entities):area(self._area),
+		ui.List(items):area(self._area),
 	}
 end
 

yazi-plugin/preset/plugins/folder.lua

@@ -19,13 +19,13 @@ function M:peek(job)
 		return ya.preview_widget(job, ui.Line(s):area(job.area):align(ui.Line.CENTER))
 	end
 
-	local entities = {}
+	local items = {}
 	for _, f in ipairs(folder.window) do
-		entities[#entities + 1] = Entity:new(f):redraw()
+		items[#items + 1] = Entity:new(f):redraw():truncate { max = job.area.w }
 	end
 
 	ya.preview_widget(job, {
-		ui.List(entities):area(job.area),
+		ui.List(items):area(job.area),
 		table.unpack(Marker:new(job.area, folder):redraw()),
 	})
 end

yazi-plugin/preset/plugins/magick.lua

@@ -31,7 +31,7 @@ function M:preload(job)
 	end
 
 	-- stylua: ignore
-	local status, err = cmd:args {
+	local status, err = cmd:arg {
 		tostring(job.file.url), "-auto-orient", "-strip",
 		"-sample", string.format("%dx%d>", rt.preview.max_width, rt.preview.max_height),
 		"-quality", rt.preview.image_quality,
@@ -48,7 +48,7 @@ end
 function M:spot(job) require("file"):spot(job) end
 
 function M.with_limit()
-	local cmd = Command("magick"):args { "-limit", "thread", 1 }
+	local cmd = Command("magick"):arg { "-limit", "thread", 1 }
 	if rt.tasks.image_alloc > 0 then
 		cmd:arg { "-limit", "memory", rt.tasks.image_alloc, "-limit", "disk", "1MiB" }
 	end

yazi-plugin/preset/plugins/svg.lua

@@ -26,7 +26,7 @@ function M:preload(job)
 	end
 
 	-- stylua: ignore
-	local cmd = Command("resvg"):args {
+	local cmd = Command("resvg"):arg {
 		"-w", rt.preview.max_width, "-h", rt.preview.max_height,
 		"--image-rendering", "optimizeSpeed",
 		tostring(job.file.url), tostring(cache)

yazi-plugin/preset/plugins/video.lua

@@ -60,11 +60,11 @@ function M:preload(job)
 	})
 
 	if percent ~= 0 then
-		cmd:args { "-ss", math.floor(meta.format.duration * percent / 100) }
+		cmd:arg { "-ss", math.floor(meta.format.duration * percent / 100) }
 	end
-	cmd:args { "-i", tostring(job.file.url) }
+	cmd:arg { "-i", tostring(job.file.url) }
 	if percent == 0 then
-		cmd:args { "-map", "disp:attached_pic" }
+		cmd:arg { "-map", "disp:attached_pic" }
 	end
 
 	-- stylua: ignore
@@ -126,9 +126,9 @@ function M:spot_base(job)
 end
 
 function M.list_meta(url, entries)
-	local cmd = Command("ffprobe"):args { "-v", "quiet" }
+	local cmd = Command("ffprobe"):arg { "-v", "quiet" }
 	if not entries:find("attached_pic", 1, true) then
-		cmd = cmd:args { "-select_streams", "v" }
+		cmd:arg { "-select_streams", "v" }
 	end
 
 	local output, err = cmd:arg({ "-show_entries", entries, "-of", "json=c=1", tostring(url) }):output()

yazi-plugin/src/elements/line.rs

@@ -1,4 +1,4 @@
-use std::mem;
+use std::{borrow::Cow, mem};
 
 use ansi_to_tui::IntoText;
 use mlua::{AnyUserData, ExternalError, ExternalResult, IntoLua, Lua, MetaMethod, Table, UserData, UserDataMethods, Value};
@@ -131,5 +131,30 @@ impl UserData for Line {
 		methods.add_method("visible", |_, me, ()| {
 			Ok(me.inner.iter().flat_map(|s| s.content.chars()).any(|c| c.width().unwrap_or(0) > 0))
 		});
+		methods.add_function_mut("truncate", |_, (ud, t): (AnyUserData, Table)| {
+			let mut me = ud.borrow_mut::<Self>()?;
+			let max = t.raw_get("max")?;
+
+			let mut width = 0;
+			'outer: for (x, span) in me.inner.iter_mut().enumerate() {
+				for (y, c) in span.content.char_indices() {
+					width += c.width().unwrap_or(0);
+					if width < max {
+						continue;
+					} else if width == max && span.content[y..].chars().nth(1).is_none() {
+						continue;
+					}
+
+					match &mut span.content {
+						Cow::Borrowed(s) => span.content = Cow::Borrowed(&s[..y]),
+						Cow::Owned(s) => s.truncate(y),
+					}
+					me.inner.spans.truncate(x + 1);
+					me.inner.spans.push(ratatui::text::Span::raw("…"));
+					break 'outer;
+				}
+			}
+			Ok(ud)
+		});
 	}
 }