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koreader/plugins/terminal.koplugin/main.lua
2017-04-29 03:01:38 -07:00

98 lines
2.8 KiB
Lua

local DataStorage = require("datastorage")
local Font = require("ui/font")
local InfoMessage = require("ui/widget/infomessage")
local InputDialog = require("ui/widget/inputdialog")
local UIManager = require("ui/uimanager")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local logger = require("logger")
local util = require("ffi/util")
local _ = require("gettext")
local Screen = require("device").screen
local Terminal = WidgetContainer:new{
name = "terminal",
dump_file = util.realpath(DataStorage:getDataDir()) .. "/terminal_output.txt",
command = "",
}
function Terminal:init()
self.ui.menu:registerToMainMenu(self)
end
function Terminal:start()
self.input = InputDialog:new{
title = _("Enter a command and press \"Execute\""),
input = self.command,
text_height = Screen:getHeight() * 0.4,
input_type = "string",
buttons = {{{
text = _("Cancel"),
callback = function()
UIManager:close(self.input)
end,
}, {
text = _("Execute"),
is_enter_default = true,
callback = function()
UIManager:close(self.input)
self:execute()
end,
}}},
}
self.input:onShowKeyboard()
UIManager:show(self.input)
end
function Terminal:execute()
self.command = self.input:getInputText()
UIManager:show(InfoMessage:new{
text = _("Executing…"),
timeout = 0.1,
})
UIManager:forceRePaint()
local std_out = io.popen(self.command)
local entries = { self.command }
if std_out then
while true do
local line = std_out:read()
if line == nil then break end
table.insert(entries, line)
end
std_out:close()
else
table.insert(entries, _("Failed to execute command."))
end
self:dump(entries)
table.insert(entries, _("Output will also be written to"))
table.insert(entries, self.dump_file)
UIManager:show(InfoMessage:new{
cface = Font:getFace("xx_smallinfofont"),
text = _("Command output\n") .. table.concat(entries, "\n"),
show_icon = false,
width = Screen:getWidth() * 0.8,
height = Screen:getHeight() * 0.8,
})
end
function Terminal:dump(entries)
local content = table.concat(entries, "\n")
local file = io.open(self.dump_file, "w")
if file then
file:write(content)
file:close()
else
logger.warn("Failed to dump terminal output " .. content .. " to " .. self.dump_file)
end
end
function Terminal:addToMainMenu(menu_items)
menu_items.terminal = {
text = _("Terminal emulator"),
callback = function()
self:start()
end,
}
end
return Terminal