diff options
Diffstat (limited to 'fedora/.config/yazi/plugins/office.yazi/main.lua')
| -rw-r--r-- | fedora/.config/yazi/plugins/office.yazi/main.lua | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/fedora/.config/yazi/plugins/office.yazi/main.lua b/fedora/.config/yazi/plugins/office.yazi/main.lua new file mode 100644 index 0000000..3ec7385 --- /dev/null +++ b/fedora/.config/yazi/plugins/office.yazi/main.lua @@ -0,0 +1,121 @@ +--- @since 25.2.7 + +local M = {} + +function M:peek(job) + local start, cache = os.clock(), ya.file_cache(job) + if not cache then + return + end + + local ok, err = self:preload(job) + if not ok or err then + return + end + + ya.sleep(math.max(0, rt.preview.image_delay / 1000 + start - os.clock())) + ya.image_show(cache, job.area) + ya.preview_widgets(job, {}) +end + +function M:seek(job) + local h = cx.active.current.hovered + if h and h.url == job.file.url then + local step = ya.clamp(-1, job.units, 1) + ya.manager_emit("peek", { math.max(0, cx.active.preview.skip + step), only_if = job.file.url }) + end +end + +function M:doc2pdf(job) + local tmp = "/tmp/yazi-" .. ya.uid() .. "/" .. ya.hash("office.yazi") .. "/" + + --[[ For Future Reference: Regarding `libreoffice` as preconverter + 1. It prints errors to stdout (always, doesn't matter if it succeeded or it failed) + 2. Always writes the converted files to the filesystem, so no "Mario|Bros|Piping|Magic" for the data stream (https://ask.libreoffice.org/t/using-convert-to-output-to-stdout/38753) + 3. The `pdf:draw_pdf_Export` filter needs literal double quotes when defining its options (https://help.libreoffice.org/latest/en-US/text/shared/guide/pdf_params.html?&DbPAR=SHARED&System=UNIX#generaltext/shared/guide/pdf_params.xhp) + 3.1 Regarding double quotes and Lua strings, see https://www.lua.org/manual/5.1/manual.html#2.1 --]] + local libreoffice = Command("libreoffice") + :arg({ + "--headless", + "--convert-to", + "pdf:draw_pdf_Export:{" + .. '"PageRange":{' + .. '"type":"string",' + .. '"value":' + .. '"' + .. job.skip + 1 + .. '"' + .. "}" + .. "}", + "--outdir", + tmp, + tostring(job.file.url), + }) + :stdin(Command.NULL) + :stdout(Command.PIPED) + :stderr(Command.NULL) + :output() + + if not libreoffice.status.success then + ya.err( + libreoffice.stdout:match("LibreOffice .+"):gsub("%\n.*", "") + .. " " + .. libreoffice.stdout:match("Error .+"):gsub("%\n.*", "") + ) + return nil, Err("Failed to preconvert `%s` to a temporary PDF", job.file.name) + end + + local tmp = tmp .. job.file.name:gsub("%.[^%.]+$", ".pdf") + local read_permission = io.open(tmp, "r") + if not read_permission then + return nil, Err("Failed to read `%s`: make sure file exists and have read access", tmp) + end + read_permission:close() + + return tmp +end + +function M:preload(job) + local cache = ya.file_cache(job) + if not cache or fs.cha(cache) then + return true + end + + local tmp_pdf, err = self:doc2pdf(job) + if not tmp_pdf then + return true, Err(" " .. "%s", err) + end + + local output, err = Command("pdftoppm") + :arg({ + "-singlefile", + "-jpeg", + "-jpegopt", + "quality=" .. rt.preview.image_quality, + "-f", + 1, + tostring(tmp_pdf), + }) + :stdout(Command.PIPED) + :stderr(Command.PIPED) + :output() + + local rm_tmp_pdf, rm_err = fs.remove("file", Url(tmp_pdf)) + if not rm_tmp_pdf then + return true, Err("Failed to remove %s, error: %s", tmp_pdf, rm_err) + end + + if not output then + return true, Err("Failed to start `pdftoppm`, error: %s", err) + elseif not output.status.success then + local pages = tonumber(output.stderr:match("the last page %((%d+)%)")) or 0 + if job.skip > 0 and pages > 0 then + ya.mgr_emit("peek", { math.max(0, pages - 1), only_if = job.file.url, upper_bound = true }) + end + return true, Err("Failed to convert %s to image, stderr: %s", tmp_pdf, output.stderr) + end + + return fs.write(cache, output.stdout) +end + +return M |