enigma-bbs/core/mask_edit_text_view.js

209 lines
5.5 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.MaskEditTextView = MaskEditTextView;
// ##/##/#### <--styleSGR2 if fillChar
// ^- styleSGR1
// buildPattern -> [ RE, RE, '/', RE, RE, '/', RE, RE, RE, RE ]
// patternIndex -----^
// styleSGR1: Literal's (non-focus)
// styleSGR2: Literals (focused)
// styleSGR3: fillChar
//
// :TODO:
// * Hint, e.g. YYYY/MM/DD
// * Return values with literals in place
//
function MaskEditTextView(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 = { x : 0 };
this.patternArrayPos = 0;
var self = this;
this.maskPattern = options.maskPattern || '';
this.clientBackspace = function() {
var fillCharSGR = this.getStyleSGR(3) || this.getSGR();
this.client.term.write('\b' + fillCharSGR + this.fillChar + '\b' + this.getFocusSGR());
};
this.drawText = function(s) {
var textToDraw = strUtil.stylizeString(s, this.hasFocus ? this.focusTextStyle : this.textStyle);
assert(textToDraw.length <= self.patternArray.length);
// draw out the text we have so far
var i = 0;
var t = 0;
while(i < self.patternArray.length) {
if(_.isRegExp(self.patternArray[i])) {
if(t < textToDraw.length) {
self.client.term.write((self.hasFocus ? self.getFocusSGR() : self.getSGR()) + textToDraw[t]);
t++;
} else {
self.client.term.write((self.getStyleSGR(3) || '') + self.fillChar);
}
} else {
var styleSgr = this.hasFocus ? (self.getStyleSGR(2) || '') : (self.getStyleSGR(1) || '');
self.client.term.write(styleSgr + self.maskPattern[i]);
}
i++;
}
};
this.buildPattern = function() {
self.patternArray = [];
self.maxLength = 0;
for(var i = 0; i < self.maskPattern.length; i++) {
// :TODO: support escaped characters, e.g. \#. Also allow \\ for a '\' mark!
if(self.maskPattern[i] in MaskEditTextView.maskPatternCharacterRegEx) {
self.patternArray.push(MaskEditTextView.maskPatternCharacterRegEx[self.maskPattern[i]]);
++self.maxLength;
} else {
self.patternArray.push(self.maskPattern[i]);
}
}
};
this.getEndOfTextColumn = function() {
return this.position.col + this.patternArrayPos;
};
this.buildPattern();
}
require('util').inherits(MaskEditTextView, TextView);
MaskEditTextView.maskPatternCharacterRegEx = {
'#' : /[0-9]/, // Numeric
'A' : /[a-zA-Z]/, // Alpha
'@' : /[0-9a-zA-Z]/, // Alphanumeric
'&' : /[\w\d\s]/, // Any "printable" 32-126, 128-255
};
MaskEditTextView.prototype.setText = function(text) {
MaskEditTextView.super_.prototype.setText.call(this, text);
if(this.patternArray) { // :TODO: This is a hack - see TextView ctor note about setText()
this.patternArrayPos = this.patternArray.length;
}
};
MaskEditTextView.prototype.setMaskPattern = function(pattern) {
this.dimens.width = pattern.length;
this.maskPattern = pattern;
this.buildPattern();
};
MaskEditTextView.prototype.onKeyPress = function(ch, key) {
if(key) {
if(this.isKeyMapped('backspace', key.name)) {
if(this.text.length > 0) {
this.patternArrayPos--;
assert(this.patternArrayPos >= 0);
if(_.isRegExp(this.patternArray[this.patternArrayPos])) {
this.text = this.text.substr(0, this.text.length - 1);
this.clientBackspace();
} else {
while(this.patternArrayPos > 0) {
if(_.isRegExp(this.patternArray[this.patternArrayPos])) {
this.text = this.text.substr(0, this.text.length - 1);
this.client.term.write(ansi.goto(this.position.row, this.getEndOfTextColumn() + 1));
this.clientBackspace();
break;
}
this.patternArrayPos--;
}
}
}
return;
} else if(this.isKeyMapped('clearLine', key.name)) {
this.text = '';
this.patternArrayPos = 0;
this.setFocus(true); // redraw + adjust cursor
return;
}
}
if(ch && strUtil.isPrintable(ch)) {
if(this.text.length < this.maxLength) {
ch = strUtil.stylizeString(ch, this.textStyle);
if(!ch.match(this.patternArray[this.patternArrayPos])) {
return;
}
this.text += ch;
this.patternArrayPos++;
while(this.patternArrayPos < this.patternArray.length &&
!_.isRegExp(this.patternArray[this.patternArrayPos]))
{
this.patternArrayPos++;
}
this.redraw();
this.client.term.write(ansi.goto(this.position.row, this.getEndOfTextColumn()));
}
}
MaskEditTextView.super_.prototype.onKeyPress.call(this, ch, key);
};
MaskEditTextView.prototype.setPropertyValue = function(propName, value) {
switch(propName) {
case 'maskPattern' : this.setMaskPattern(value); break;
}
MaskEditTextView.super_.prototype.setPropertyValue.call(this, propName, value);
};
MaskEditTextView.prototype.getData = function() {
var rawData = MaskEditTextView.super_.prototype.getData.call(this);
if(!rawData || 0 === rawData.length) {
return rawData;
}
var data = '';
assert(rawData.length <= this.patternArray.length);
var p = 0;
for(var i = 0; i < this.patternArray.length; ++i) {
if(_.isRegExp(this.patternArray[i])) {
data += rawData[p++];
} else {
data += this.patternArray[i];
}
}
return data;
};