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--!A cross-platform build utility 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-present, Xmake Open Source Community.
--
-- @author ruki
-- @file textedit.lua
--
-- load modules
local log = require("ui/log")
local view = require("ui/view")
local label = require("ui/label")
local event = require("ui/event")
local border = require("ui/border")
local curses = require("ui/curses")
local textarea = require("ui/textarea")
local action = require("ui/action")
local bit = require("base/bit")
-- define module
local textedit = textedit or textarea()
-- init textedit
function textedit:init(name, bounds, text)
-- init label
textarea.init(self, name, bounds, text)
-- show cursor
self:cursor_show(true)
-- mark as selectable
self:option_set("selectable", true)
-- mark as mouseable
self:option_set("mouseable", true)
self:action_set(action.ac_on_clicked, function () return true end)
-- enable multiple line
self:option_set("multiline", true)
end
-- draw textedit
function textedit:on_draw(transparent)
-- draw label
textarea.on_draw(self, transparent)
-- move cursor
if not self:text() or #self:text() == 0 then
self:cursor_move(0, 0)
else
self:cursor_move(self:canvas():pos())
end
end
-- set text
function textedit:text_set(text)
textarea.text_set(self, text)
self:scroll_to_end()
return self
end
-- on event
function textedit:on_event(e)
-- update text
if e.type == event.ev_keyboard then
if e.key_name == "Enter" and self:option("multiline") then
self:text_set(self:text() .. '\n')
return true
elseif e.key_name == "Backspace" then
local text = self:text()
if #text > 0 then
local size = 1
-- while continuation byte
while bit.band(text:byte(#text - size + 1), 0xc0) == 0x80 do
size = size + 1
end
self:text_set(text:sub(1, #text - size))
end
return true
elseif e.key_name == "CtrlV" then
local pastetext = os.pbpaste()
if pastetext then
self:text_set(self:text() .. pastetext)
end
return true
elseif e.key_code > 0x1f and e.key_code < 0xf8 then
self:text_set(self:text() .. string.char(e.key_code))
return true
end
end
-- do textarea event
return textarea.on_event(self, e)
end
-- return module
return textedit
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