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koreader/frontend/apps/filemanager/filemanagerconverter.lua
Frans de Jonge d9b37a1794
[i18n] Add translators comment about Markdown (#5752)
As pointed out by @comradekingu on <https://hosted.weblate.org/translate/koreader/koreader/en/?q=has:comment#comments> it looks like some translators have mistakenly interpreted this as a reduction in price.
2020-01-07 12:26:49 +01:00

110 lines
3.7 KiB
Lua

--[[--
This module is responsible for converting files.
]]
local ButtonDialogTitle = require("ui/widget/buttondialogtitle")
local ConfirmBox = require("ui/widget/confirmbox")
local UIManager = require("ui/uimanager")
local lfs = require("libs/libkoreader-lfs")
local logger = require("logger")
local util = require("util")
local _ = require("gettext")
local T = require("ffi/util").template
local FileConverter = {
formats_from = {
md = {
-- @translators See <https://en.wikipedia.org/wiki/Markdown>. In languages written in the Latin alphabet this is unlikely to change.
name = _("Markdown"),
from = "markdown",
},
},
formats_to = {
epub = {
to = "epub",
},
html = {
to = "html",
},
pdf = {
to = "pdf",
},
},
--curl --form input_files[]=@README.md --form from=markdown --form to=pdf http://c.docverter.com/convert
docverter_url = "http://c.docverter.com/convert",
}
--- Converts a markdown fragment to a full HTML document.
---- @string markdown the markdown fragment
---- @string title an optional title for the HTML document
---- @treturn string an HTML document
function FileConverter:mdToHtml(markdown, title)
local MD = require("apps/filemanager/lib/md")
local md_options = {
prependHead = "<!DOCTYPE html>\n<html>\n<head>\n",
insertHead = string.format("<title>%s</title>\n</head>\n<body>\n", title),
appendTail = "\n</body>\n</html>",
}
local html, err = MD(markdown, md_options)
if err then
logger.warn("FileManagerConverter: could not generate HTML", err)
end
return html
end
function FileConverter:_mdFileToHtml(file, title)
local f = io.open(file, "rb")
local content = f:read("*all")
f:close()
local html = self:mdToHtml(content, title)
return html
end
function FileConverter:writeStringToFile(content, file)
local f = io.open(file, "w")
f:write(content)
f:close()
end
function FileConverter:isSupported(file)
return FileConverter.formats_from[util.getFileNameSuffix(file)] and true or false
end
function FileConverter:showConvertButtons(file, ui)
local __, filename_pure = util.splitFilePathName(file)
local filename_suffix = util.getFileNameSuffix(file)
local filetype_name = self.formats_from[filename_suffix].name
self.convert_dialog = ButtonDialogTitle:new{
title = T(_("Convert %1 to:"), filetype_name),
buttons = {
{
{
text = _("HTML"),
callback = function()
local html = FileConverter:_mdFileToHtml(file, filename_pure)
if not html then return end
local filename_html = file..".html"
if lfs.attributes(filename_html, "mode") == "file" then
UIManager:show(ConfirmBox:new{
text = _("Overwrite existing HTML file?"),
ok_text = _("Overwrite"),
ok_callback = function()
FileConverter:writeStringToFile(html, filename_html)
UIManager:close(self.convert_dialog)
end,
})
else
FileConverter:writeStringToFile(html, filename_html)
ui:refreshPath()
UIManager:close(self.convert_dialog)
end
end,
},
},
},
}
UIManager:show(self.convert_dialog)
end
return FileConverter