--!A cross-platform build utility based on Lua
--
-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements.  See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership.  The ASF licenses this file
-- to you 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 - 2018, TBOOX Open Source Group.
--
-- @author      ruki
-- @file        boxdialog.lua
--

-- load modules
local log        = require("ui/log")
local rect       = require("ui/rect")
local action     = require("ui/action")
local curses     = require("ui/curses")
local window     = require("ui/window")
local textdialog = require("ui/textdialog")

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

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

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

    -- insert box
    self:panel():insert(self:box())

    -- resize text
    self:text():bounds().ey = 3
    self:text():invalidate(true)
    self:text():option_set("selectable", false)
    self:text():option_set("progress", 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())
            if lines > 0 and lines < self:height() then
                self:box():bounds().sy = lines
                self:text():bounds().ey = lines
                self:box():invalidate(true)
                self:text():invalidate(true)
            end
        end
    end)

    -- select buttons by default
    self:panel():select(self:buttons())
end

-- get box
function boxdialog:box()
    if not self._BOX then
        self._BOX = window:new("boxdialog.box", rect{0, 3, self:panel():width(), self:panel():height() - 1})
        self._BOX:border():cornerattr_set("black", "white")
    end
    return self._BOX
end

-- return module
return boxdialog