enigma-bbs/core/edit_text_view.js

90 lines
2.3 KiB
JavaScript

/* jslint node: true */
'use strict';
var TextView = require('./text_view.js').TextView;
var miscUtil = require('./misc_util.js');
var strUtil = require('./string_util.js');
//var ansi = require('./ansi_term.js');
//var util = require('util');
var assert = require('assert');
var _ = require('lodash');
exports.EditTextView = EditTextView;
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;
TextView.call(this, options);
this.cursorPos = { row : 0, col : 0 };
this.clientBackspace = function() {
var fillCharSGR = this.getStyleSGR(1) || this.getSGR();
this.client.term.write('\b' + fillCharSGR + this.fillChar + '\b' + this.getFocusSGR());
};
}
require('util').inherits(EditTextView, TextView);
EditTextView.prototype.onKeyPress = function(ch, key) {
if(key) {
if(this.isSpecialKeyMapped('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();
}
}
}
return;
} else if(this.isSpecialKeyMapped('clearLine', key.name)) {
this.text = '';
this.cursorPos.col = 0;
this.setFocus(true); // resetting focus will redraw & adjust cursor
return;
}
}
if(ch && strUtil.isPrintable(ch)) {
if(this.text.length < this.maxLength) {
ch = strUtil.stylizeString(ch, this.textStyle);
this.text += ch;
if(this.text.length > this.dimens.width) {
// no shortcuts - redraw the view
this.redraw();
} else {
this.cursorPos.col += 1;
if(this.textMaskChar) {
this.client.term.write(this.textMaskChar);
} else {
this.client.term.write(ch);
}
}
}
}
EditTextView.super_.prototype.onKeyPress.call(this, ch, key);
};
EditTextView.prototype.setText = function(text) {
// draw & set |text|
EditTextView.super_.prototype.setText.call(this, text);
// adjust local cursor tracking
this.cursorPos = { row : 0, col : text.length };
};