mirror of
https://github.com/sxyazi/yazi.git
synced 2026-07-21 23:01:05 +00:00
65 lines
1.6 KiB
Lua
65 lines
1.6 KiB
Lua
local M = {}
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function M:peek(job)
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local start, cache = os.clock(), ya.file_cache(job)
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if not cache then
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return
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end
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local ok, err = self:preload(job)
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if not ok or err then
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return
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end
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ya.sleep(math.max(0, cf.preview.image_delay / 1000 + start - os.clock()))
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ya.image_show(cache, job.area)
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ya.preview_widgets(job, {})
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end
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function M:seek(job)
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local h = cx.active.current.hovered
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if h and h.url == job.file.url then
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local step = ya.clamp(-1, job.units, 1)
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ya.manager_emit("peek", { math.max(0, cx.active.preview.skip + step), only_if = job.file.url })
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end
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end
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function M:preload(job)
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local cache = ya.file_cache(job)
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if not cache or fs.cha(cache) then
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return true
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end
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-- stylua: ignore
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local output, err = Command("pdftoppm")
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:args({
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"-f", job.skip + 1,
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"-l", job.skip + 1,
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"-singlefile",
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"-jpeg", "-jpegopt", "quality=" .. cf.preview.image_quality,
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"-scale-to-x", cf.preview.max_width, "-scale-to-y", "-1",
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tostring(job.file.url),
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tostring(cache),
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})
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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 true, Err("Failed to start `pdftoppm`, error: %s", err)
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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 job.skip > 0 and pages > 0 then
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ya.manager_emit("peek", { math.max(0, pages - 1), only_if = job.file.url, upper_bound = true })
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end
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return true, Err("Failed to convert PDF to image, stderr: %s", output.stderr)
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end
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local ok, err = os.rename(string.format("%s.jpg", cache), tostring(cache))
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if ok then
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return true
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else
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return false, Err("Failed to rename `%s.jpg` to `%s`, error: %s", cache, cache, err)
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end
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end
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return M
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