---A cross-platform terminal ui library based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015-2020, TBOOX Open Source Group.
--
-- @author      ruki
-- @file        inputdialog.lua
--

-- load modules
local log        = require("ltui/base/log")
local rect       = require("ltui/rect")
local view       = require("ltui/view")
local event      = require("ltui/event")
local action     = require("ltui/action")
local curses     = require("ltui/curses")
local window     = require("ltui/window")
local textedit   = require("ltui/textedit")
local textdialog = require("ltui/textdialog")

-- define module
local inputdialog = inputdialog or textdialog()

-- init dialog
function inputdialog:init(name, bounds, title)

    -- init window
    textdialog.init(self, name, bounds, title)

    -- insert textedit
    self:panel():insert(self:textedit())

    -- resize text
    self:text():bounds().ey = 1
    self:text():invalidate(true)
    self:text():option_set("selectable", false)

    -- text changed
    self:text():action_set(action.ac_on_text_changed, function (v)
        if v:text() then
            local lines = #self:text():splitext(v:text()) + 1
            if lines > 0 and lines < self:height() then
                self:text():bounds().ey = lines
                self:textedit():bounds().sy = lines
                self:text():invalidate(true)
                self:textedit():invalidate(true)
            end
        end
    end)

    -- on resize for panel
    self:panel():action_add(action.ac_on_resized, function (v)
        self:textedit():bounds_set(rect{0, 1, v:width(), v:height() - 1})
    end)
end

-- get textedit
function inputdialog:textedit()
    if not self._TEXTEDIT then
        self._TEXTEDIT = textedit:new("inputdialog.textedit", rect{0, 1, self:panel():width(), self:panel():height() - 1})
    end
    return self._TEXTEDIT
end

-- return module
return inputdialog
