mirror of
https://github.com/matrix-construct/construct
synced 2024-11-18 07:50:57 +01:00
103 lines
2.3 KiB
JavaScript
103 lines
2.3 KiB
JavaScript
/*
|
|
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
/**************************************
|
|
* Input history (bash style history)
|
|
*
|
|
* this = room
|
|
*/
|
|
room.input.history = {};
|
|
|
|
room.input.history.history = function()
|
|
{
|
|
if(!Array.isArray(this.session.history))
|
|
this.session.history = [];
|
|
|
|
return this.session.history;
|
|
};
|
|
|
|
/** Add text to the history
|
|
* (use enter() for official user input)
|
|
*/
|
|
room.input.history.add = function(text)
|
|
{
|
|
let history = this.input.history.history();
|
|
history.push(text);
|
|
};
|
|
|
|
/** Get text from the history
|
|
*/
|
|
room.input.history.get = function(pos = 0)
|
|
{
|
|
let history = this.input.history.history();
|
|
return history[history.length - pos - 1];
|
|
};
|
|
|
|
/** The number of lines in the history
|
|
*/
|
|
room.input.history.len = function()
|
|
{
|
|
let history = this.input.history.history();
|
|
return maybe(() => history.length)? history.length : 0;
|
|
};
|
|
|
|
/** Enter text into the history and clear the input
|
|
*/
|
|
room.input.history.enter = function(text)
|
|
{
|
|
this.input.history.add(text);
|
|
this.input.history.pos = undefined;
|
|
this.control.input = "";
|
|
};
|
|
|
|
/** Handle an up-arrow event by restoring text from
|
|
* history into the input.
|
|
*/
|
|
room.input.history.up = function(event)
|
|
{
|
|
let pos = this.input.history.pos;
|
|
if(pos === undefined || pos < 0)
|
|
{
|
|
this.input.history.add(this.control.input);
|
|
this.input.history.pos = pos = 1;
|
|
}
|
|
|
|
if(pos > this.input.history.len() - 1)
|
|
return;
|
|
|
|
this.control.input = this.input.history.get(pos);
|
|
|
|
if(pos < this.input.history.len() - 1)
|
|
++this.input.history.pos;
|
|
};
|
|
|
|
/** Handle a down-arrow event by restoring text from
|
|
* history into the input.
|
|
*/
|
|
room.input.history.down = function(event)
|
|
{
|
|
let pos = this.input.history.pos;
|
|
if(pos === undefined)
|
|
return;
|
|
|
|
if(pos < 0)
|
|
{
|
|
this.input.history.add(this.control.input);
|
|
this.control.input = "";
|
|
}
|
|
else this.control.input = this.input.history.get(pos);
|
|
|
|
if(pos >= 0)
|
|
--this.input.history.pos;
|
|
};
|