60 lines
1.2 KiB
Lua
60 lines
1.2 KiB
Lua
local M = {}
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function M:peek()
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local child = Command("mlr")
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:args({
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"--icsv",
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"--opprint",
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"-C",
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"--key-color",
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"darkcyan",
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"--value-color",
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"grey70",
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"cat",
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tostring(self.file.url),
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})
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:stdout(Command.PIPED)
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:stderr(Command.PIPED)
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:spawn()
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local limit = self.area.h
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local i, lines = 0, ""
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repeat
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local next, event = child:read_line()
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if event == 1 then
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ya.err(tostring(event))
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elseif event ~= 0 then
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break
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end
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i = i + 1
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if i > self.skip then
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lines = lines .. next
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end
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until i >= self.skip + limit
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child:start_kill()
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if self.skip > 0 and i < self.skip + limit then
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ya.manager_emit(
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"peek",
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{ tostring(math.max(0, i - limit)), only_if = tostring(self.file.url), upper_bound = "" }
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)
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else
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lines = lines:gsub("\t", string.rep(" ", PREVIEW.tab_size))
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ya.preview_widgets(self, { ui.Paragraph.parse(self.area, lines) })
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end
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end
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function M:seek(units)
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local h = cx.active.current.hovered
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if h and h.url == self.file.url then
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local step = math.floor(units * self.area.h / 10)
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ya.manager_emit("peek", {
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tostring(math.max(0, cx.active.preview.skip + step)),
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only_if = tostring(self.file.url),
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})
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end
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end
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return M
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