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FIX: Neither Backspace or Delete work in mTCP Telnet #412 

* Add CTRL-D as a default additional backspace key
 * Kludge 'delete' treated the same as 'backspace' in EditTextView if at the EOL
This commit is contained in:
Bryan Ashby 2022-04-08 15:19:00 -06:00
parent d3924c2591
commit 63c2ffcffa
No known key found for this signature in database
GPG Key ID: C2C1B501E4EFD994
3 changed files with 32 additions and 17 deletions
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43
core/edit_text_view.js
View File

@ -6,27 +6,45 @@ const TextView = require('./text_view.js').TextView;
const miscUtil = require('./misc_util.js');
const strUtil = require('./string_util.js');
const VIEW_SPECIAL_KEY_MAP_DEFAULT = require('./view').VIEW_SPECIAL_KEY_MAP_DEFAULT;
// deps
const _ = require('lodash');
exports.EditTextView = EditTextView;
const EDIT_TEXT_VIEW_KEY_MAP = Object.assign({}, VIEW_SPECIAL_KEY_MAP_DEFAULT, {
delete : [ 'delete', 'ctrl + d' ], // https://www.tecmint.com/linux-command-line-bash-shortcut-keys/
});
function EditTextView(options) {
options.acceptsFocus = miscUtil.valueWithDefault(options.acceptsFocus, true);
options.acceptsInput = miscUtil.valueWithDefault(options.acceptsInput, true);
options.cursorStyle = miscUtil.valueWithDefault(options.cursorStyle, 'steady block');
options.resizable = false;
if(!_.isObject(options.specialKeyMap)) {
options.specialKeyMap = EDIT_TEXT_VIEW_KEY_MAP;
}
TextView.call(this, options);
this.initDefaultWidth();
this.cursorPos = { row : 0, col : 0 };
this.clientBackspace = function() {
const fillCharSGR = this.getStyleSGR(1) || this.getSGR();
this.client.term.write(`\b${fillCharSGR}${this.fillChar}\b${this.getFocusSGR()}`);
};
this.text = this.text.substr(0, this.text.length - 1);
if(this.text.length >= this.dimens.width) {
this.redraw();
} else {
this.cursorPos.col -= 1;
if(this.cursorPos.col >= 0) {
const fillCharSGR = this.getStyleSGR(1) || this.getSGR();
this.client.term.write(`\b${fillCharSGR}${this.fillChar}\b${this.getFocusSGR()}`);
}
}
}
}
require('util').inherits(EditTextView, TextView);
@ -35,19 +53,16 @@ EditTextView.prototype.onKeyPress = function(ch, key) {
if(key) {
if(this.isKeyMapped('backspace', key.name)) {
if(this.text.length > 0) {
this.text = this.text.substr(0, this.text.length - 1);
if(this.text.length >= this.dimens.width) {
this.redraw();
} else {
this.cursorPos.col -= 1;
if(this.cursorPos.col >= 0) {
this.clientBackspace();
}
}
this.clientBackspace();
}
return EditTextView.super_.prototype.onKeyPress.call(this, ch, key);
} else if (this.isKeyMapped('delete', key.name)) {
// Some (mostly older) terms send 'delete' for Backspace.
// if we're at the end of the line, go ahead and treat them the same
if (this.text.length > 0 && this.cursorPos.col === this.text.length) {
this.clientBackspace();
}
} else if(this.isKeyMapped('clearLine', key.name)) {
this.text = '';
this.cursorPos.col = 0;

4
core/multi_line_edit_text_view.js
View File

@ -65,7 +65,7 @@ const _ = require('lodash');
const SPECIAL_KEY_MAP_DEFAULT = {
'line feed' : [ 'return' ],
exit : [ 'esc' ],
backspace : [ 'backspace' ],
backspace : [ 'backspace', 'ctrl + d' ], // https://www.tecmint.com/linux-command-line-bash-shortcut-keys/
delete : [ 'delete' ],
tab : [ 'tab' ],
up : [ 'up arrow' ],
@ -74,7 +74,7 @@ const SPECIAL_KEY_MAP_DEFAULT = {
home : [ 'home' ],
left : [ 'left arrow' ],
right : [ 'right arrow' ],
'delete line' : [ 'ctrl + y' ],
'delete line' : [ 'ctrl + y', 'ctrl + u' ], // https://en.wikipedia.org/wiki/Backspace
'page up' : [ 'page up' ],
'page down' : [ 'page down' ],
insert : [ 'insert', 'ctrl + v' ],

2
core/view.js
View File

@ -17,7 +17,7 @@ exports.View = View;
const VIEW_SPECIAL_KEY_MAP_DEFAULT = {
accept : [ 'return' ],
exit : [ 'esc' ],
backspace : [ 'backspace', 'del' ],
backspace : [ 'backspace', 'del', 'ctrl + d'], // https://www.tecmint.com/linux-command-line-bash-shortcut-keys/
del : [ 'del' ],
next : [ 'tab' ],
up : [ 'up arrow' ],