mirror of
https://github.com/sxyazi/yazi.git
synced 2024-12-18 22:31:35 +03:00
49 lines
1.1 KiB
Lua
49 lines
1.1 KiB
Lua
local M = {}
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function M:peek()
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local cache = ya.file_cache(self)
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if not cache then
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return
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end
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if self:preload() == 1 then
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ya.image_show(cache, self.area)
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ya.preview_widgets(self, {})
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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 = ya.clamp(-1, units, 1)
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ya.manager_emit("peek", { math.max(0, cx.active.preview.skip + step), only_if = tostring(self.file.url) })
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end
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end
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function M:preload()
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local cache = ya.file_cache(self)
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if not cache or fs.cha(cache) then
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return 1
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end
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local output = Command("pdftoppm")
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:args({ "-singlefile", "-jpeg", "-jpegopt", "quality=75", "-f", tostring(self.skip + 1), tostring(self.file.url) })
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:stdout(Command.PIPED)
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:stderr(Command.PIPED)
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:output()
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if not output then
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return 0
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elseif not output.status:success() then
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local pages = tonumber(output.stderr:match("the last page %((%d+)%)")) or 0
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if self.skip > 0 and pages > 0 then
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ya.manager_emit("peek", { math.max(0, pages - 1), only_if = tostring(self.file.url), upper_bound = true })
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end
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return 0
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end
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return fs.write(cache, output.stdout) and 1 or 2
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end
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return M
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