mirror of https://github.com/koreader/koreader
Terminal emulator: full rewrite, real vt52 emulator (#8636)
New real terminal emulator, replacing the old plugin. The emulator is basically a vt52 terminal (enriched with some ANSI-sequences, as ash, vi and mksh don't behave well on a vt52 term). So far working: ash, mksh, bash, nano, vi, busybox, watch... The input supports: tab-completion; cursor movement; backspace; start of line, end of line (long press); page up, page down (long press). User scripts may be placed in the koterm.koplugin/scripts/ folder, aliases can be put in the file aliases and startup command in the file profile.user in that folder.reviewable/pr8742/r1
zwim
2 years ago
committed by
GitHub
parent
943dc99645
commit
f2557a7aa6
@ -1,6 +1,6 @@
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local _ = require("gettext")
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return {
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name = "terminal",
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fullname = _("Terminal"),
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description = _([[Executes simple commands and shows their output.]]),
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fullname = _("Terminal emulator"),
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description = _([[KOReader's terminal emulator]]),
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}
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@ -0,0 +1,169 @@
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local KeyValuePage = require("ui/widget/keyvaluepage")
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local InfoMessage = require("ui/widget/infomessage")
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local MultiInputDialog = require("ui/widget/multiinputdialog")
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local UIManager = require("ui/uimanager")
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local _ = require("gettext")
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local util = require("util")
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local T = require("ffi/util").template
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local Aliases = {
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filename = "",
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close_callback = nil,
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parent = nil,
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alias_kv = nil,
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kv_pairs = {},
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}
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function Aliases:show(filename, close_callback, parent)
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self.filename = filename
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self.close_callback = close_callback
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self.parent = parent
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self:load()
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self.alias_kv = KeyValuePage:new{
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title = "Aliases (Shortcuts)",
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kv_pairs = self.kv_pairs,
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close_callback = self.close_callback,
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}
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UIManager:show(self.alias_kv)
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end
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function Aliases:updateKeyValues()
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self.alias_kv.kv_pairs = self.kv_pairs
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UIManager:close(self.alias_kv)
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self.alias_kv = KeyValuePage:new{
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title = "Aliases (Shortcuts)",
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kv_pairs = self.kv_pairs,
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close_callback = self.close_callback,
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}
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UIManager:show(self.alias_kv)
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end
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function Aliases:load()
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local file = io.open(self.filename, "r")
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self.kv_pairs = {}
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if file then
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for line in file:lines() do
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line = line:gsub("^ *alias *", "") -- drop alias
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local dummy, separator = line:find("^[%a%d][%a%d-_]*%=") -- find separator
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if line ~= "" and line:sub(1, 1) ~= "#" and separator then
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local alias_name = line:sub(1, separator - 1)
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local alias_command = line:sub(separator + 1):gsub("\"", "")
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table.insert(self.kv_pairs, {alias_name, alias_command,
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callback = function() self.editAlias(self, alias_name, alias_command) end
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})
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end
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end
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file:close()
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table.sort(self.kv_pairs, function(a, b) return a[1] < b[1] end)
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end
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table.insert(self.kv_pairs, 1,
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{ _("Create a new alias"), "", callback = function() self.editAlias(self, "", "") end})
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table.insert(self.kv_pairs, 2, "---")
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end
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function Aliases:save()
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local file = io.open(self.filename .. ".new", "w")
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if not file then
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UIManager:show(InfoMessage:new{
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text = T(_("Terminal emulator: error saving: %1"), self.filename)
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})
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end
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file:write("# Aliases generated by terminal emulator\n\n")
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for i = 3, #self.kv_pairs do
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file:write("alias " .. self.kv_pairs[i][1] .. "=\"" .. self.kv_pairs[i][2] .. "\"\n")
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end
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file:close()
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os.remove(self.filename)
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os.rename(self.filename .. ".new", self.filename)
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end
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function Aliases:editAlias(alias_name, alias_command)
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local alias_input
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alias_input = MultiInputDialog:new{
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title = _("Edit alias"),
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fields = {
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{
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description = _("Alias name:"),
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text = alias_name,
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},
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{
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description = _("Alias command:"),
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text = alias_command,
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},
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},
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buttons = {
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{
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{
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text = _("Cancel"),
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callback = function()
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UIManager:close(alias_input)
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end
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},
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{
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text = _("Delete"),
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callback = function()
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UIManager:close(alias_input)
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for i, v in pairs(self.kv_pairs) do
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if v[1] == alias_name then
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table.remove(self.kv_pairs, i)
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self.parent:transmit("unalias " .. alias_name .."\n")
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end
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end
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self:save()
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self:updateKeyValues()
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end
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},
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{
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text = _("Save"),
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callback = function()
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local fields = MultiInputDialog:getFields()
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local name = fields[1] and util.trim(fields[1])
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local value = fields[2] and util.trim(fields[2])
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if name ~= "" and value ~= "" then
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UIManager:close(alias_input)
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for i, v in pairs(self.kv_pairs) do
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if v[1] == alias_name then
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table.remove(self.kv_pairs, i)
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self.parent:transmit("unalias " .. alias_name .."\n")
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end
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end
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self.parent:transmit("alias " .. name .. "='" .. value .. "'\n")
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table.insert(self.kv_pairs, {name, value,
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callback = function()
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self.editAlias(self, name, value)
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end
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})
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table.remove(self.kv_pairs, 2)
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table.remove(self.kv_pairs, 1)
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table.sort(self.kv_pairs, function(a, b) return a[1] < b[1] end)
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table.insert(self.kv_pairs, 1, { _("Create a new alias"), "",
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callback = function() self:editAlias(self, "", "") end })
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table.insert(self.kv_pairs, 2, "---")
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self:save()
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self:updateKeyValues()
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end
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end
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},
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{
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text = _("Execute"),
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callback = function()
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local fields = MultiInputDialog:getFields()
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local value = fields[2] and util.trim(fields[2])
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if value ~= "" then
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UIManager:close(alias_input)
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self.alias_kv:onClose()
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self.parent:transmit(value .. "\n")
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end
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end
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},
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},
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},
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}
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UIManager:show(alias_input)
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alias_input:onShowKeyboard()
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end
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return Aliases
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@ -0,0 +1,53 @@
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#!/bin/sh
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# This file gets executed on every start of the terminal shell.
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# Do not edit this file!
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# You may change the contents of 'aliases' and 'profile.user'
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#
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# shellcheck source=/dev/null
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TERMINAL_HOME="$(pwd)"
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# make TERMINAL_DATA an absolute path
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cd "${TERMINAL_DATA}" || exit
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TERMINAL_DATA="$(pwd)"
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HOME="${TERMINAL_DATA}"
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PATH="${PATH}:${TERMINAL_DATA}/scripts:${TERMINAL_HOME}/plugins/terminal.koplugin/"
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TERM="vt52"
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PS1="$ "
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if [ "$(id -u)" -eq "0" ]; then
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PS1="# "
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fi
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EDITOR="nano"
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SHFM_OPENER="${TERMINAL_HOME}/plugins/terminal.koplugin/shfm_opener.sh"
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export EDITOR
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export HOME
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export TERMINAL_HOME
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export TERMINAL_DATA
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export PATH
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export PS1
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export SHFM_OPENER
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export TERM
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# Source a user profile if it exists.
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USER_PROFILE="${TERMINAL_DATA}/scripts/profile.user"
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if [ -f "${USER_PROFILE}" ]; then
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. "${USER_PROFILE}"
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fi
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# Source command aliases if they exist.
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# These will be managed by terminal.koplugin so you don't need
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# to change it manually.
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ALIASES="${TERMINAL_DATA}/scripts/aliases"
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if [ -f "${ALIASES}" ]; then
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. "${ALIASES}"
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fi
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if [ -z "${ANDROID}" ]; then
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echo "You can use shfm as a filemanager, ? shows help in shfm."
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fi
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,35 @@
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#!/bin/sh -e
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#
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# open file in application based on file extension
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mime_type=$(file -bi "$1")
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case "${mime_type}" in
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application/x*)
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./"$1"
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echo "Application done, hit enter to return"
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read -r
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exit
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;;
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text/x-shellscript*)
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./"$1"
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echo "Shellscript done, hit enter to return"
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read -r
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exit
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;;
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esac
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case "$1" in
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*.sh)
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sh "$1"
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echo "Shellscript done, enter to return."
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read -r
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exit
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;;
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# all other files
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*)
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"${EDITOR:=vi}" "$1"
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;;
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esac
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@ -0,0 +1,857 @@
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--[[
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module used for terminal emulator to override InputText
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]]
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local InputText = require("ui/widget/inputtext")
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local UIManager = require("ui/uimanager")
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local dbg = require("dbg")
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local logger = require("logger")
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local util = require("util")
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local esc = "\027"
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local esc_seq = {
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backspace = "\008",
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cursor_left = "\027[D",
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cursor_right = "\027[C",
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cursor_up = "\027[A",
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cursor_down = "\027[B",
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cursor_pos1 = "\027[7~",
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cursor_end = "\027[8~",
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page_up = "\027[5~",
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page_down = "\027[6~",
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}
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local function isNum(char)
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if #char ~= 1 then return end
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if char:byte() >= ("0"):byte() and char:byte() <= ("9"):byte() then
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return true
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end
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end
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local function isPrintable(ch)
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return ch:byte() >= 32 or ch == "\010" or ch == "\013"
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end
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local TermInputText = InputText:extend{
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maxr = 40,
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maxc = 80,
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min_buffer_size = 2 * 40 * 80, -- minimal size of scrollback buffer
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strike_callback = nil,
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sequence_state = "",
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store_pos_dec = nil,
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store_pos_sco = nil,
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store_position = nil, -- when entered alternate keypad
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scroll_region_bottom = nil,
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scroll_region_top = nil,
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scroll_region_line = nil,
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wrap = true,
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alternate_buffer = {},
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save_buffer = {},
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}
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-- disable positioning cursor by tap in emulator mode
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function TermInputText:onTapTextBox(arg, ges)
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return true
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end
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function TermInputText:resize(maxr, maxc)
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self.maxr = maxr
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self.maxc = maxc
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self.min_buffer_size = 2 * self.maxr * self.maxc
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end
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-- reduce the size of the buffer,
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function TermInputText:trimBuffer(new_size)
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if not new_size or new_size < self.min_buffer_size then
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new_size = self.min_buffer_size
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end
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if #self.charlist > new_size then
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local old_pos = self.charpos -- for adjusting saved positions
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-- remove char from beginning
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while #self.charlist > new_size do
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table.remove(self.charlist, 1)
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self.charpos = self.charpos - 1
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end
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-- remove the (rest) of the first line
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while self.charlist[1] and self.charlist[1] ~= "\n" do
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table.remove(self.charlist, 1)
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self.charpos = self.charpos - 1
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end
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-- remove newline at the first line
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if self.charlist[1] and self.charlist[1] == "\n" then
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table.remove(self.charlist, 1)
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self.charpos = self.charpos - 1
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end
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-- IMPORTANT: update stored positions if the buffer has to be trimmed
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local shift_pos = old_pos - self.charpos
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if self.store_position then
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self.store_position = self.store_position - shift_pos
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if self.store_position < 1 then
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self.store_position = 1
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end
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end
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if self.store_pos_dec then
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self.store_pos_dec = self.store_pos_dec - shift_pos
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if self.store_pos_dec < 1 then
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self.store_pos_dec = 1
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end
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end
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if self.store_pos_sco then
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self.store_pos_sco = self.store_pos_sco - shift_pos
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if self.store_pos_sco < 1 then
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self.store_pos_sco = 1
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end
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end
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-- unlikely but this could happen if the cursor is at the beginning
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-- and the buffer has to be trimmed
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if self.charpos < 1 then
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self.charpos = 1
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end
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self:initTextBox(table.concat(self.charlist), true)
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end
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end
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function TermInputText:saveBuffer(buffer)
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table.insert(self[buffer],
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{
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self.charlist,
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self.charpos,
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self.store_pos_sco,
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self.store_position,
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self.scroll_region_bottom,
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self.scroll_region_top,
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self.scroll_region_line,
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self.wrap,
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})
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self.charlist = {}
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self.charpos = 1
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self.store_pos_dec = nil
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self.store_pos_sco = nil
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self.store_position = nil
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self.scroll_region_bottom = nil
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self.scroll_region_top = nil
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self.scroll_region_line = nil
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self.wrap = true
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end
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function TermInputText:restoreBuffer(buffer)
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local former_buffer = table.remove(self[buffer])
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if type(former_buffer[1]) == "table" then
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self.charlist,
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self.charpos,
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self.store_pos_sco,
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self.store_position,
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self.scroll_region_bottom,
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self.scroll_region_top,
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self.scroll_region_line,
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self.wrap = unpack(former_buffer)
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end
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end
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function TermInputText:_helperVT52VT100(cmd, mode, param1, param2, param3)
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if cmd == "A" then -- cursor up
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param1 = param1 == 0 and 1 or param1
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for i = 1, param1 do
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if self.scroll_region_line then
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self:scrollRegionDown()
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end
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self:moveCursorUp(true)
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end
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return true
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elseif cmd == "B" then -- cursor down
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param1 = param1 == 0 and 1 or param1
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for i = 1, param1 do
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self:moveCursorDown(true)
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end
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return true
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elseif cmd == "C" then -- cursor right
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param1 = param1 == 0 and 1 or param1
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for i = 1, param1 do
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self:rightChar(true)
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end
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return true
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elseif cmd == "D" then -- cursor left
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param1 = param1 == 0 and 1 or param1
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for i = 1, param1 do
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self:leftChar(true)
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end
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return true
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elseif cmd == "H" then -- cursor home
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param1 = param1 == 0 and 1 or param1
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param2 = param2 == 0 and 1 or param2
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self:moveCursorToRowCol(param1, param2)
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if self.scroll_region_line and param1 <= self.scroll_region_bottom
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and param1 >= self.scroll_region_top then
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self.scroll_region_line = param1
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end
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return true
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elseif cmd == "J" then -- clear to end of screen
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if param1 == 0 then
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self:clearToEndOfScreen()
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elseif param1 == 1 then
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return false --- @todo not implemented
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elseif param1 == 2 then
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local saved_pos = self.charpos
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self:moveCursorToRowCol(1, 1)
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self:clearToEndOfScreen()
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self.charpos = saved_pos
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end
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return true
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elseif cmd == "K" then -- clear to end of line
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self:delToEndOfLine()
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return true
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elseif cmd == "L" then
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if self.scroll_region_line then
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self:scrollRegionDown()
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end
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return true
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elseif cmd == "h" and mode == "?" then --
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--- if param2 == 25 then set cursor visible
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if param2 == 7 then -- enable wrap around
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self.wrap = true
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elseif param2 == 47 then -- save screen
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self:saveBuffer("save_buffer")
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print("xxxxxxxxxxxx save screen")
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elseif param2 == 1049 then -- enable alternate buffer
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self:saveBuffer("alternate_buffer")
|
||||
print("xxxxxxxxxxxx enable alternate buffer")
|
||||
end
|
||||
return true
|
||||
elseif cmd == "l" and mode == "?" then --
|
||||
--- if param2 == 25 then set cursor invisible
|
||||
if param2 == 7 then -- enable wrap around
|
||||
self.wrap = false
|
||||
elseif param2 == 47 then -- restore screen
|
||||
self:restoreBuffer("save_buffer")
|
||||
print("xxxxxxxxxxxx restore screen")
|
||||
elseif param2 == 1049 then -- disable alternate buffer
|
||||
self:restoreBuffer("alternate_buffer")
|
||||
print("xxxxxxxxxxxx disable alternate buffer")
|
||||
end
|
||||
return true
|
||||
elseif cmd == "m" then
|
||||
-- graphics mode not supported yet(?)
|
||||
return true
|
||||
elseif cmd == "n" then
|
||||
--- @todo
|
||||
return true
|
||||
elseif cmd == "r" then
|
||||
if param2 > 0 and param2 < self.maxr then
|
||||
self.scroll_region_bottom = param2
|
||||
else
|
||||
self.scroll_region_bottom = nil
|
||||
end
|
||||
|
||||
if self.scroll_region_bottom and param1 < self.maxr and param1 <= param2 then
|
||||
self.scroll_region_top = param1
|
||||
self.scroll_region_line = 1
|
||||
else
|
||||
self.scroll_region_bottom = nil
|
||||
self.scroll_region_top = nil
|
||||
self.scroll_region_line = nil
|
||||
end
|
||||
logger.dbg("Terminal: set scroll region", param1, param2, self.scroll_region_top, self.scroll_region_bottom, self.scroll_region_line)
|
||||
return true
|
||||
end
|
||||
return false
|
||||
end
|
||||
|
||||
function TermInputText:interpretAnsiSeq(text)
|
||||
local pos = 1
|
||||
local param1, param2, param3 = 0, 0, 0
|
||||
|
||||
while pos <= #text do
|
||||
local next_byte = text:sub(pos, pos)
|
||||
if self.sequence_state == "" then
|
||||
if next_byte == esc then
|
||||
self.sequence_state = "esc"
|
||||
elseif isPrintable(next_byte) then
|
||||
local part = next_byte
|
||||
-- all bytes up to the next control sequence
|
||||
while pos < #text and isPrintable(next_byte) do
|
||||
next_byte = text:sub(pos+1, pos+1)
|
||||
if next_byte ~= "" and pos < #text and isPrintable(next_byte) then
|
||||
part = part .. next_byte
|
||||
pos = pos + 1
|
||||
end
|
||||
end
|
||||
self:addChars(part, true, true)
|
||||
elseif next_byte == "\008" then
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
elseif self.sequence_state == "esc" then
|
||||
self.sequence_state = ""
|
||||
if next_byte == "A" then -- cursor up
|
||||
self:moveCursorUp(true)
|
||||
elseif next_byte == "B" then -- cursor down
|
||||
self:moveCursorDown(true)
|
||||
elseif next_byte == "C" then -- cursor right
|
||||
self:rightChar(true)
|
||||
elseif next_byte == "D" then -- cursor left
|
||||
self:leftChar(true)
|
||||
elseif next_byte == "F" then -- enter graphics mode
|
||||
logger.dbg("Terminal: enter graphics mode not supported")
|
||||
elseif next_byte == "G" then -- exit graphics mod
|
||||
logger.dbg("Terminal: leave graphics mode not supported")
|
||||
elseif next_byte == "H" then -- cursor home
|
||||
self:moveCursorToRowCol(1, 1)
|
||||
elseif next_byte == "I" then -- reverse line feed (cursor up and insert line)
|
||||
self:reverseLineFeed(true)
|
||||
elseif next_byte == "J" then -- clear to end of screen
|
||||
self:clearToEndOfScreen()
|
||||
elseif next_byte == "K" then -- clear to end of line
|
||||
self:delToEndOfLine()
|
||||
elseif next_byte == "L" then -- insert line
|
||||
logger.dbg("Terminal: insert not supported")
|
||||
elseif next_byte == "M" then -- remove line
|
||||
logger.dbg("Terminal: remove line not supported")
|
||||
elseif next_byte == "Y" then -- set cursor pos (row, col)
|
||||
self.sequence_state = "escY"
|
||||
elseif next_byte == "Z" then -- ident(ify)
|
||||
self.strike_callback("\027/K") -- identify as VT52 without printer
|
||||
elseif next_byte == "=" then -- alternate keypad
|
||||
self:enterAlternateKeypad()
|
||||
elseif next_byte == ">" then -- exit alternate keypad
|
||||
self:exitAlternateKeypad()
|
||||
elseif next_byte == "[" then
|
||||
self.sequence_state = "CSI1"
|
||||
elseif next_byte == "7" then
|
||||
self.store_pos_dec = self.charpos
|
||||
elseif next_byte == "8" then
|
||||
self.charpos = self.store_pos_dec
|
||||
end
|
||||
elseif self.sequence_state == "escY" then
|
||||
param1 = next_byte
|
||||
self.sequence_state = "escYrow"
|
||||
elseif self.sequence_state == "escYrow" then
|
||||
param2 = next_byte
|
||||
-- row and column are offsetted with 32 (' ')
|
||||
if param1 ~= 0 and param2 ~= 0 then
|
||||
local row = param1 and (param1:byte() - (" "):byte() + 1) or 1
|
||||
local col = param2 and (param2:byte() - (" "):byte() + 1) or 1
|
||||
self:moveCursorToRowCol(row, col)
|
||||
param1, param2, param3 = 0, 0, 0
|
||||
end
|
||||
self.sequence_state = ""
|
||||
elseif self.sequence_state == "CSI1" then
|
||||
if next_byte == "s" then -- save cursor pos
|
||||
self.store_pos_sco = self.charpos
|
||||
elseif next_byte == "u" then -- restore cursor pos
|
||||
self.charpos = self.store_pos_sco
|
||||
elseif next_byte == "?" then
|
||||
self.sequence_mode = "?"
|
||||
self.sequence_state = "escParam2"
|
||||
elseif isNum(next_byte) then
|
||||
param1 = param1 * 10 + next_byte:byte() - ("0"):byte()
|
||||
else
|
||||
if next_byte == ";" then
|
||||
self.sequence_state = "escParam2"
|
||||
else
|
||||
pos = pos - 1
|
||||
self.sequence_state = "escOtherCmd"
|
||||
end
|
||||
end
|
||||
elseif self.sequence_state == "escParam2" then
|
||||
if isNum(next_byte) then
|
||||
param2 = param2 * 10 + next_byte:byte() - ("0"):byte()
|
||||
else
|
||||
if next_byte == ";" then
|
||||
self.sequence_state = "escParam3"
|
||||
else
|
||||
pos = pos - 1
|
||||
self.sequence_state = "escOtherCmd"
|
||||
end
|
||||
end
|
||||
elseif self.sequence_state == "escParam3" then
|
||||
if isNum(next_byte) then
|
||||
param3 = param3 * 10 + next_byte:byte() - ("0"):byte()
|
||||
else
|
||||
pos = pos - 1
|
||||
self.sequence_state = "escOtherCmd"
|
||||
end
|
||||
elseif self.sequence_state == "escOtherCmd" then
|
||||
if not self:_helperVT52VT100(next_byte, self.sequence_mode, param1, param2, param3) then
|
||||
-- drop other VT100 sequences
|
||||
logger.info("Terminal: ANSI-final: not supported", next_byte,
|
||||
next_byte:byte(), next_byte, param1, param2, param3)
|
||||
end
|
||||
param1, param2, param3 = 0, 0, 0
|
||||
self.sequence_state = ""
|
||||
self.sequence_mode = ""
|
||||
else
|
||||
logger.dbg("Terminal: detected error in esc sequence, not my fault.")
|
||||
self.sequence_state = ""
|
||||
end -- self.sequence_state
|
||||
|
||||
pos = pos + 1
|
||||
end
|
||||
|
||||
self:initTextBox(table.concat(self.charlist), true)
|
||||
end
|
||||
|
||||
function TermInputText:scrollRegionDown(column)
|
||||
column = column or 1
|
||||
if self.scroll_region_line > self.scroll_region_top then
|
||||
self.scroll_region_line = self.scroll_region_line - 1
|
||||
else -- scroll down
|
||||
local pos = self.charpos
|
||||
for i = self.scroll_region_line, self.scroll_region_bottom do
|
||||
while pos > 1 and self.charlist[pos] ~= "\n" do
|
||||
pos = pos + 1
|
||||
end
|
||||
if pos < #self.charlist then
|
||||
pos = pos + 1
|
||||
end
|
||||
end
|
||||
pos = pos - 1
|
||||
|
||||
table.remove(self.charlist, pos)
|
||||
while self.charlist[pos] ~= "\n" do
|
||||
table.remove(self.charlist, pos)
|
||||
end
|
||||
|
||||
pos = self.charpos
|
||||
for i = column, self.maxc - column + 1 do
|
||||
table.insert(self.charlist, pos, ".")
|
||||
pos = pos + 1
|
||||
end
|
||||
table.insert(self.charlist, pos, "\n")
|
||||
end
|
||||
end
|
||||
|
||||
function TermInputText:scrollRegionUp(column)
|
||||
column = column or 1
|
||||
if self.scroll_region_line < self.scroll_region_bottom then
|
||||
self.scroll_region_line = self.scroll_region_line + 1
|
||||
else -- scroll up
|
||||
local pos = self.charpos
|
||||
for i = self.scroll_region_line, self.scroll_region_top + 1, -1 do
|
||||
while pos > 1 and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
end
|
||||
if pos > 1 then
|
||||
pos = pos - 1
|
||||
end
|
||||
end
|
||||
pos = pos + 1
|
||||
|
||||
table.remove(self.charlist, pos)
|
||||
self.charpos = self.charpos - 1
|
||||
pos = pos - 1
|
||||
while pos > 0 and self.charlist[pos] ~= "\n" do
|
||||
table.remove(self.charlist, pos)
|
||||
pos = pos - 1
|
||||
end
|
||||
|
||||
pos = self.charpos + 1
|
||||
for i = column, self.maxc - column do
|
||||
table.insert(self.charlist, pos, " ")
|
||||
pos = pos + 1
|
||||
end
|
||||
table.insert(self.charlist, pos, "\n")
|
||||
for i = 1, column - 1 do
|
||||
table.insert(self.charlist, pos, " ")
|
||||
pos = pos + 1
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
function TermInputText:addChars(chars, skip_callback, skip_table_concat)
|
||||
-- the same as in inputtext.lua
|
||||
if not chars then
|
||||
-- VirtualKeyboard:addChar(key) gave us 'nil' once (?!)
|
||||
-- which would crash table.concat()
|
||||
return
|
||||
end
|
||||
if self.enter_callback and chars == "\n" and not skip_callback then
|
||||
UIManager:scheduleIn(0.3, function() self.enter_callback() end)
|
||||
return
|
||||
end
|
||||
|
||||
-- this is an addon to inputtext.lua
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(chars)
|
||||
return
|
||||
end
|
||||
|
||||
-- the same as in inputtext.lua
|
||||
if self.readonly or not self:isTextEditable(true) then
|
||||
return
|
||||
end
|
||||
|
||||
self.is_text_edited = true
|
||||
if #self.charlist == 0 then -- widget text is empty or a hint text is displayed
|
||||
self.charpos = 1 -- move cursor to the first position
|
||||
end
|
||||
|
||||
-- this is a modification of inputtext.lua
|
||||
local chars_list = util.splitToChars(chars) -- for UTF8
|
||||
for i = 1, #chars_list do
|
||||
if chars_list[i] == "\n" then
|
||||
-- detect current column
|
||||
local pos = self.charpos
|
||||
while pos > 0 and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
end
|
||||
local column = self.charpos - pos
|
||||
|
||||
if self.scroll_region_line then
|
||||
self:scrollRegionUp(column)
|
||||
end
|
||||
|
||||
-- go to EOL
|
||||
while self.charlist[self.charpos] and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
|
||||
if not self.charlist[self.charpos] then -- add new line if necessary
|
||||
table.insert(self.charlist, self.charpos, "\n")
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
|
||||
-- go to column in next line
|
||||
for j = 1, column-1 do
|
||||
if not self.charlist[self.charpos] then
|
||||
table.insert(self.charlist, self.charpos, " ")
|
||||
self.charpos = self.charpos + 1
|
||||
else
|
||||
break
|
||||
end
|
||||
end
|
||||
|
||||
if self.charlist[self.charpos] then
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
|
||||
-- fill line
|
||||
pos = self.charpos
|
||||
for j = column, self.maxc do
|
||||
if not self.charlist[pos] then
|
||||
table.insert(self.charlist, pos, " ")
|
||||
end
|
||||
pos = pos + 1
|
||||
end
|
||||
if not self.charlist[pos] then
|
||||
table.insert(self.charlist, pos, "\n")
|
||||
end
|
||||
elseif chars_list[i] == "\r" then
|
||||
if self.charlist[self.charpos] == "\n" then
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
while self.charpos >=1 and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
self.charpos = self.charpos + 1
|
||||
elseif chars_list[i] == "\b" then
|
||||
self.charpos = self.charpos - 1
|
||||
else
|
||||
if self.wrap then
|
||||
if self.charlist[self.charpos] == "\n" then
|
||||
self.charpos = self.charpos + 1
|
||||
for j = 0, self.maxc-1 do
|
||||
if not self.charlist[self.charpos + j] then
|
||||
table.insert(self.charlist, self.charpos + j, " ")
|
||||
end
|
||||
end
|
||||
end
|
||||
else
|
||||
local column = 1
|
||||
local pos = self.charpos
|
||||
while pos > 0 and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
column = column + 1
|
||||
end
|
||||
if self.charlist[self.charpos] == "\n" or column > self.maxc then
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
end
|
||||
table.remove(self.charlist, self.charpos)
|
||||
table.insert(self.charlist, self.charpos, chars_list[i])
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
end
|
||||
|
||||
-- the same as in inputtext.lua
|
||||
if not skip_table_concat then
|
||||
self:initTextBox(table.concat(self.charlist), true)
|
||||
end
|
||||
end
|
||||
dbg:guard(TermInputText, "addChars",
|
||||
function(self, chars)
|
||||
assert(type(chars) == "string",
|
||||
"TermInputText: Wrong chars value type (expected string)!")
|
||||
end)
|
||||
|
||||
function TermInputText:enterAlternateKeypad()
|
||||
self.store_position = self.charpos
|
||||
self:formatTerminal(true)
|
||||
end
|
||||
|
||||
function TermInputText:exitAlternateKeypad()
|
||||
if self.store_position then
|
||||
self.charpos = self.store_position
|
||||
self.store_position = nil
|
||||
-- clear the alternate keypad buffer
|
||||
while self.charlist[self.charpos] do
|
||||
table.remove(self.charlist, self.charpos)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
--- generates a "tty-matrix"
|
||||
-- @param maxr number of rows
|
||||
-- @param maxc number of columns
|
||||
-- @param clear if true, fill the matrix ' '
|
||||
function TermInputText:formatTerminal(clear)
|
||||
local i = self.store_position or 1
|
||||
-- so we end up in a maxr x maxc array for positioning
|
||||
for r = 1, self.maxr do
|
||||
for c = 1, self.maxc do
|
||||
if not self.charlist[i] then -- end of text
|
||||
table.insert(self.charlist, i, "\n")
|
||||
end
|
||||
|
||||
if self.charlist[i] ~= "\n" then
|
||||
if clear then
|
||||
self.charlist[i] = ' '
|
||||
end
|
||||
else
|
||||
table.insert(self.charlist, i, ' ')
|
||||
end
|
||||
i = i + 1
|
||||
end
|
||||
if self.charlist[i] ~= "\n" then
|
||||
table.insert(self.charlist, i, "\n")
|
||||
end
|
||||
i = i + 1 -- skip newline
|
||||
end
|
||||
-- table.remove(self.charlist, i - 1)
|
||||
end
|
||||
|
||||
function TermInputText:moveCursorToRowCol(r, c)
|
||||
self:formatTerminal()
|
||||
|
||||
local cur_r, cur_c = 1, 0
|
||||
local i = self.store_position or 1
|
||||
while i < #self.charlist do
|
||||
if self.charlist[i] ~= "\n" then
|
||||
cur_c = cur_c + 1
|
||||
else
|
||||
cur_c = 0 -- as we are at the last NL
|
||||
cur_r = cur_r + 1
|
||||
end
|
||||
self.charpos = i
|
||||
if cur_r == r and cur_c == c then
|
||||
break
|
||||
end
|
||||
i = i + 1
|
||||
end
|
||||
self:moveCursorToCharPos(self.charpos)
|
||||
end
|
||||
|
||||
function TermInputText:clearToEndOfScreen()
|
||||
local pos = self.charpos
|
||||
while pos <= #self.charlist do
|
||||
if self.charlist[pos] ~= "\n" then
|
||||
self.charlist[pos] = " "
|
||||
end
|
||||
pos = pos + 1
|
||||
end
|
||||
self.is_text_edited = true
|
||||
self:initTextBox(table.concat(self.charlist))
|
||||
-- self:moveCursorToCharPos(self.charpos)
|
||||
end
|
||||
|
||||
function TermInputText:delToEndOfLine()
|
||||
if self.readonly or not self:isTextEditable(true) then
|
||||
return
|
||||
end
|
||||
local cur_pos = self.charpos
|
||||
-- self.charlist[self.charpos] is the char after the cursor
|
||||
while self.charlist[cur_pos] and self.charlist[cur_pos] ~= "\n" do
|
||||
self.charlist[cur_pos] = " "
|
||||
cur_pos = cur_pos + 1
|
||||
end
|
||||
self:initTextBox(table.concat(self.charlist))
|
||||
end
|
||||
|
||||
function TermInputText:reverseLineFeed(skip_callback)
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.page_down)
|
||||
return
|
||||
end
|
||||
if self.charpos > 1 and self.charlist[self.charpos] == "\n" then
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
local cur_col = 0
|
||||
while self.charpos > 1 and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos - 1
|
||||
cur_col = cur_col + 1
|
||||
end
|
||||
if self.charpos > 1 then
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
for i = 1, 80 do
|
||||
table.insert(self.charlist, self.charpos, " ")
|
||||
end
|
||||
end
|
||||
|
||||
------------------------------------------------------------------
|
||||
-- overridden InputText methods --
|
||||
------------------------------------------------------------------
|
||||
|
||||
function TermInputText:leftChar(skip_callback)
|
||||
if self.charpos == 1 then return end
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_left)
|
||||
return
|
||||
end
|
||||
local left_char = self.charlist[self.charpos - 1]
|
||||
if not left_char or left_char == "\n" then
|
||||
return
|
||||
end
|
||||
--InputText.leftChar(self)
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
|
||||
function TermInputText:rightChar(skip_callback)
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_right)
|
||||
return
|
||||
end
|
||||
if self.charpos > #self.charlist then return end
|
||||
local right_char = self.charlist[self.charpos + 1]
|
||||
if not right_char and right_char == "\n" then
|
||||
return
|
||||
end
|
||||
InputText.rightChar(self)
|
||||
end
|
||||
|
||||
function TermInputText:moveCursorUp()
|
||||
local pos = self.charpos
|
||||
while self.charlist[pos] and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
end
|
||||
local column = self.charpos - pos
|
||||
pos = pos - 1
|
||||
while self.charlist[pos] and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
end
|
||||
self.charpos = pos + column
|
||||
self:moveCursorToCharPos(self.charpos)
|
||||
end
|
||||
|
||||
function TermInputText:moveCursorDown()
|
||||
local pos = self.charpos
|
||||
|
||||
-- detect current column
|
||||
while pos > 0 and self.charlist[pos] ~= "\n" do
|
||||
pos = pos - 1
|
||||
end
|
||||
local column = self.charpos - pos
|
||||
|
||||
while self.charlist[self.charpos] and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
self.charpos = self.charpos + 1
|
||||
for i = 1, column-1 do
|
||||
if self.charlist[pos+i] or self.charlist[pos+i] ~= "\n" then
|
||||
self.charpos = self.charpos + 1
|
||||
else
|
||||
break
|
||||
end
|
||||
end
|
||||
self:moveCursorToCharPos(self.charpos)
|
||||
end
|
||||
|
||||
function TermInputText:delChar()
|
||||
if self.readonly or not self:isTextEditable(true) then
|
||||
return
|
||||
end
|
||||
if self.charpos == 1 then return end
|
||||
|
||||
if self.strike_callback then
|
||||
self.strike_callback(esc_seq.backspace)
|
||||
return
|
||||
end
|
||||
InputText.delChar(self)
|
||||
end
|
||||
|
||||
function TermInputText:delToStartOfLine()
|
||||
return
|
||||
end
|
||||
|
||||
function TermInputText:scrollDown(skip_callback)
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.page_down)
|
||||
return
|
||||
end
|
||||
InputText.scrollDown(self)
|
||||
end
|
||||
|
||||
function TermInputText:scrollUp(skip_callback)
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.page_up)
|
||||
return
|
||||
end
|
||||
InputText.scrollUp(self)
|
||||
end
|
||||
|
||||
function TermInputText:goToStartOfLine(skip_callback)
|
||||
if self.strike_callback then
|
||||
if not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_pos1)
|
||||
else
|
||||
if self.charlist[self.charpos] == "\n" then
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
while self.charpos >=1 and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos - 1
|
||||
end
|
||||
self.charpos = self.charpos + 1
|
||||
self.text_widget:moveCursorToCharPos(self.charpos)
|
||||
end
|
||||
return
|
||||
end
|
||||
InputText.goToStartOfLine(self)
|
||||
end
|
||||
|
||||
function TermInputText:goToEndOfLine(skip_callback)
|
||||
if self.strike_callback then
|
||||
if not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_end)
|
||||
else
|
||||
while self.charpos <= #self.charlist and self.charlist[self.charpos] ~= "\n" do
|
||||
self.charpos = self.charpos + 1
|
||||
end
|
||||
end
|
||||
self.text_widget:moveCursorToCharPos(self.charpos)
|
||||
return
|
||||
end
|
||||
InputText.goToEndOfLine(self)
|
||||
end
|
||||
|
||||
function TermInputText:upLine(skip_callback)
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_up)
|
||||
return
|
||||
end
|
||||
InputText.upLine(self)
|
||||
end
|
||||
|
||||
function TermInputText:downLine(skip_callback)
|
||||
if #self.charlist == 0 then return end -- Avoid cursor moving within a hint.
|
||||
if self.strike_callback and not skip_callback then
|
||||
self.strike_callback(esc_seq.cursor_down)
|
||||
return
|
||||
end
|
||||
InputText.downLine(self)
|
||||
end
|
||||
|
||||
return TermInputText
|
||||
Loading…
Reference in New Issue