devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (ui/number_box/number_box.mask.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var eventsEngine = require("../../events/core/events_engine"),
extend = require("../../core/utils/extend").extend,
isNumeric = require("../../core/utils/type").isNumeric,
fitIntoRange = require("../../core/utils/math").fitIntoRange,
inRange = require("../../core/utils/math").inRange,
escapeRegExp = require("../../core/utils/common").escapeRegExp,
number = require("../../localization/number"),
maskCaret = require("./number_box.caret"),
getLDMLFormat = require("../../localization/ldml/number").getFormat,
NumberBoxBase = require("./number_box.base"),
eventUtils = require("../../events/utils"),
typeUtils = require("../../core/utils/type");
var NUMBER_FORMATTER_NAMESPACE = "dxNumberFormatter",
MOVE_FORWARD = 1,
MOVE_BACKWARD = -1,
MINUS = "-",
NUMPUD_MINUS_KEY_IE = "Subtract",
INPUT_EVENT = "input";
var ensureDefined = function(value, defaultValue) {
return void 0 === value ? defaultValue : value
};
var NumberBoxMask = NumberBoxBase.inherit({
_getDefaultOptions: function() {
return extend(this.callBase(), {
useMaskBehavior: true,
format: null
})
},
_isDeleteKey: function(key) {
return "Delete" === key || "Del" === key
},
_supportedKeys: function() {
if (!this._useMaskBehavior()) {
return this.callBase()
}
var that = this;
return extend(this.callBase(), {
minus: that._revertSign.bind(that),
del: that._removeHandler.bind(that),
backspace: that._removeHandler.bind(that),
leftArrow: that._arrowHandler.bind(that, MOVE_BACKWARD),
rightArrow: that._arrowHandler.bind(that, MOVE_FORWARD),
home: that._moveCaretToBoundary.bind(that, MOVE_FORWARD),
enter: that._updateFormattedValue.bind(that),
end: that._moveCaretToBoundary.bind(that, MOVE_BACKWARD)
})
},
_focusOutHandler: function(e) {
this._focusOutOccurs = true;
if (this._useMaskBehavior()) {
this._updateFormattedValue()
}
this.callBase(e);
this._focusOutOccurs = false
},
_updateFormattedValue: function() {
this._adjustParsedValue();
this._setTextByParsedValue();
if (this._isValueDirty()) {
this._isDirty = false;
eventsEngine.trigger(this._input(), "change")
}
},
_isValueDirty: function() {
return this._isDirty
},
_arrowHandler: function(step, e) {
if (!this._useMaskBehavior()) {
return
}
var text = this._getInputVal(),
format = this._getFormatPattern(),
nextCaret = maskCaret.getCaretWithOffset(this._caret(), step);
if (!maskCaret.isCaretInBoundaries(nextCaret, text, format)) {
nextCaret = step === MOVE_FORWARD ? nextCaret.end : nextCaret.start;
e.preventDefault();
this._caret(maskCaret.getCaretInBoundaries(nextCaret, text, format))
}
},
_moveCaretToBoundary: function(direction, e) {
if (!this._useMaskBehavior() || e.shiftKey) {
return
}
var boundaries = maskCaret.getCaretBoundaries(this._getInputVal(), this._getFormatPattern()),
newCaret = maskCaret.getCaretWithOffset(direction === MOVE_FORWARD ? boundaries.start : boundaries.end, 0);
this._caret(newCaret);
e && e.preventDefault()
},
_shouldMoveCaret: function(text, caret) {
var decimalSeparator = number.getDecimalSeparator(),
isDecimalSeparatorNext = text.charAt(caret.end) === decimalSeparator,
isZeroNext = "0" === text.charAt(caret.end),
moveToFloat = this._lastKey === decimalSeparator && isDecimalSeparatorNext,
zeroToZeroReplace = "0" === this._lastKey && isZeroNext;
return moveToFloat || zeroToZeroReplace
},
_getInputVal: function() {
return number.convertDigits(this._input().val(), true)
},
_keyboardHandler: function(e) {
this._lastKey = number.convertDigits(e.originalEvent.key, true);
if (!this._shouldHandleKey(e.originalEvent)) {
return this.callBase(e)
}
var text = this._getInputVal(),
caret = this._caret();
var enteredChar = this._lastKey === MINUS ? "" : this._lastKey,
newValue = this._tryParse(text, caret, enteredChar);
if (void 0 === newValue) {
if (this._lastKey !== MINUS) {
e.originalEvent.preventDefault()
}
if (this._shouldMoveCaret(text, caret)) {
this._moveCaret(1)
}
} else {
this._parsedValue = newValue
}
return this.callBase(e)
},
_keyPressHandler: function(e) {
if (!this._useMaskBehavior()) {
this.callBase(e)
}
},
_removeHandler: function(e) {
var caret = this._caret(),
text = this._getInputVal(),
start = caret.start,
end = caret.end;
this._lastKey = e.key;
if (caret.start === caret.end) {
this._isDeleteKey(e.key) ? end++ : start--
}
var char = text.slice(start, end);
if (this._isStub(char)) {
this._moveCaret(this._isDeleteKey(e.key) ? 1 : -1);
if (this._parsedValue < 0 || 1 / this._parsedValue === -(1 / 0)) {
this._revertSign(e);
this._setTextByParsedValue()
}
e.preventDefault();
return
}
var decimalSeparator = number.getDecimalSeparator();
if (char === decimalSeparator) {
var decimalSeparatorIndex = text.indexOf(decimalSeparator);
if (this._isNonStubAfter(decimalSeparatorIndex + 1)) {
this._moveCaret(this._isDeleteKey(e.key) ? 1 : -1);
e.preventDefault()
}
return
}
if (end - start < text.length) {
var editedText = this._getEditedText(text, {
start: start,
end: end
}, ""),
noDigits = editedText.search(/[0-9]/) < 0;
if (noDigits && this._isValueInRange(0)) {
this._parsedValue = this._parsedValue < 0 || 1 / this._parsedValue === -(1 / 0) ? -0 : 0;
return
}
}
var valueAfterRemoving = this._tryParse(text, {
start: start,
end: end
}, "");
if (void 0 === valueAfterRemoving) {
e.preventDefault()
} else {
this._parsedValue = valueAfterRemoving
}
},
_isPercentFormat: function() {
var format = this._getFormatPattern(),
noEscapedFormat = format.replace(/'[^']+'/g, "");
return noEscapedFormat.indexOf("%") !== -1
},
_getFormatPattern: function() {
var format = this.option("format"),
isLDMLPattern = "string" === typeof format && (format.indexOf("0") >= 0 || format.indexOf("#") >= 0);
if (isLDMLPattern) {
return format
} else {
return getLDMLFormat(function(value) {
return number.format(value, format)
})
}
},
_getFormatForSign: function(text) {
var format = this._getFormatPattern(),
signParts = format.split(";"),
sign = number.getSign(text, format);
signParts[1] = signParts[1] || "-" + signParts[0];
return sign < 0 ? signParts[1] : signParts[0]
},
_removeStubs: function(text, excludeComma) {
var format = this._getFormatForSign(text),
thousandsSeparator = number.getThousandsSeparator(),
stubs = format.replace(/[#0.,]/g, ""),
regExp = new RegExp("[-" + escapeRegExp((excludeComma ? "" : thousandsSeparator) + stubs) + "]", "g");
return text.replace(regExp, "")
},
_getEditedText: function(text, selection, char) {
var textBefore = text.slice(0, selection.start),
textAfter = text.slice(selection.end),
edited = textBefore + char + textAfter;
return edited
},
_tryParse: function(text, selection, char) {
var editedText = this._getEditedText(text, selection, char),
format = this._getFormatPattern(),
isTextSelected = selection.start !== selection.end,
parsed = number.parse(editedText, format),
maxPrecision = this._getPrecisionLimits(format, editedText).max,
isValueChanged = parsed !== this._parsedValue;
var isDecimalPointRestricted = char === number.getDecimalSeparator() && 0 === maxPrecision,
isUselessCharRestricted = !isTextSelected && !isValueChanged && char !== MINUS && !this._isValueIncomplete(editedText) && this._isStub(char);
if (isDecimalPointRestricted || isUselessCharRestricted) {
return
}
if ("" === editedText) {
parsed = 0
}
if (isNaN(parsed)) {
return
}
var pow = Math.pow(10, maxPrecision),
value = null === parsed ? this._parsedValue : parsed;
parsed = Math.floor(Math.round(value * pow * 10) / 10) / pow;
return this._isPercentFormat() ? parsed && parsed / 100 : parsed
},
_isValueIncomplete: function(text) {
if (!this._useMaskBehavior()) {
return this.callBase(text)
}
var caret = this._caret(),
point = number.getDecimalSeparator(),
pointIndex = text.indexOf(point),
isCaretOnFloat = pointIndex > 0 && pointIndex < caret.start,
textParts = this._removeStubs(text, true).split(point);
if (!isCaretOnFloat || 2 !== textParts.length) {
return false
}
var floatLength = textParts[1].length,
precision = this._getPrecisionLimits(this._getFormatPattern(), text),
isPrecisionInRange = inRange(floatLength, precision.min, precision.max),
endsWithZero = "0" === textParts[1].charAt(floatLength - 1);
return isPrecisionInRange && (endsWithZero || !floatLength)
},
_isValueInRange: function(value) {
var min = ensureDefined(this.option("min"), -(1 / 0)),
max = ensureDefined(this.option("max"), 1 / 0);
return inRange(value, min, max)
},
_setInputText: function(text) {
var newCaret = maskCaret.getCaretAfterFormat(this._getInputVal(), text, this._caret(), this._getFormatPattern()),
newValue = number.convertDigits(text);
if (this._formattedValue !== newValue) {
this._isDirty = true
}
this._input().val(newValue);
this._formattedValue = text;
if (!this._focusOutOccurs) {
this._caret(newCaret)
}
},
_useMaskBehavior: function() {
return !!this.option("format") && this.option("useMaskBehavior")
},
_renderInputType: function() {
var isNumberType = "number" === this.option("mode");
if (this._useMaskBehavior() && isNumberType) {
this._setInputType("tel")
} else {
this.callBase()
}
},
_isChar: function(str) {
return "string" === typeof str && 1 === str.length
},
_moveCaret: function(offset) {
if (!offset) {
return
}
var newCaret = maskCaret.getCaretWithOffset(this._caret(), offset),
adjustedCaret = maskCaret.getCaretInBoundaries(newCaret, this._getInputVal(), this._getFormatPattern());
this._caret(adjustedCaret)
},
_shouldHandleKey: function(e) {
var isSpecialChar = e.ctrlKey || e.shiftKey || e.altKey || !this._isChar(e.key),
isMinusKey = e.key === MINUS,
useMaskBehavior = this._useMaskBehavior();
return useMaskBehavior && !isSpecialChar && !isMinusKey
},
_renderInput: function() {
this.callBase();
this._renderFormatter()
},
_renderFormatter: function() {
this._clearCache();
this._detachFormatterEvents();
if (this._useMaskBehavior()) {
this._attachFormatterEvents()
}
},
_detachFormatterEvents: function() {
eventsEngine.off(this._input(), "." + NUMBER_FORMATTER_NAMESPACE)
},
_attachFormatterEvents: function() {
var $input = this._input();
eventsEngine.on($input, eventUtils.addNamespace(INPUT_EVENT, NUMBER_FORMATTER_NAMESPACE), this._formatValue.bind(this));
eventsEngine.on($input, eventUtils.addNamespace("dxclick", NUMBER_FORMATTER_NAMESPACE), function() {
this._caret(maskCaret.getCaretInBoundaries(this._caret(), this._getInputVal(), this._getFormatPattern()))
}.bind(this))
},
_forceRefreshInputValue: function() {
if (!this._useMaskBehavior()) {
return this.callBase()
}
},
_isNonStubAfter: function(index, text) {
text = (text || this._getInputVal()).slice(index);
return text && !this._isStub(text, true)
},
_isStub: function(str, isString) {
var escapedDecimalSeparator = escapeRegExp(number.getDecimalSeparator()),
regExpString = "^[^0-9" + escapedDecimalSeparator + "]+$",
stubRegExp = new RegExp(regExpString, "g");
return stubRegExp.test(str) && (isString || this._isChar(str))
},
_parseValue: function(text) {
if (!this._useMaskBehavior()) {
return this.callBase(text)
}
return this._parsedValue
},
_getPrecisionLimits: function(format, text) {
var currentFormat = this._getFormatForSign(text),
floatPart = (currentFormat.split(".")[1] || "").replace(/[^#0]/g, ""),
minPrecision = floatPart.replace(/^(0*)#*/, "$1").length,
maxPrecision = floatPart.length;
return {
min: minPrecision,
max: maxPrecision
}
},
_revertSign: function(e) {
if (!this._useMaskBehavior()) {
return
}
var caret = this._caret();
if (caret.start !== caret.end) {
this._caret(maskCaret.getCaretInBoundaries(0, this._getInputVal(), this._getFormatPattern()))
}
var newValue = -1 * ensureDefined(this._parsedValue, null);
if (this._isValueInRange(newValue)) {
this._parsedValue = newValue;
if (e.key === NUMPUD_MINUS_KEY_IE) {
eventsEngine.trigger(this._input(), INPUT_EVENT)
}
}
},
_removeMinusFromText: function(text, caret) {
var isMinusPressed = this._lastKey === MINUS && text.charAt(caret.start - 1) === MINUS;
return isMinusPressed ? this._getEditedText(text, {
start: caret.start - 1,
end: caret.start
}, "") : text
},
_setTextByParsedValue: function() {
var format = this._getFormatPattern(),
parsed = this._parseValue(),
formatted = number.format(parsed, format) || "";
this._setInputText(formatted)
},
_formatValue: function() {
var text = this._getInputVal(),
caret = this._caret(),
textWithoutMinus = this._removeMinusFromText(text, caret),
wasMinusRemoved = textWithoutMinus !== text;
this._isDirty = false;
text = textWithoutMinus;
if (this._isValueIncomplete(textWithoutMinus)) {
this._formattedValue = text;
if (wasMinusRemoved) {
this._setTextByParsedValue()
}
return
}
var textWasChanged = this._formattedValue !== text;
if (textWasChanged) {
var value = this._tryParse(text, caret, "");
if (typeUtils.isDefined(value)) {
this._parsedValue = value
}
}
this._setTextByParsedValue()
},
_renderDisplayText: function() {
if (this._useMaskBehavior()) {
this._toggleEmptinessEventHandler()
} else {
this.callBase.apply(this, arguments)
}
},
_renderValue: function() {
if (this._useMaskBehavior()) {
this._parsedValue = this.option("value");
this._setTextByParsedValue()
}
this.callBase()
},
_adjustParsedValue: function() {
var clearedText = this._removeStubs(this._getInputVal()),
parsedValue = clearedText ? this._parseValue() : null;
if (!isNumeric(parsedValue)) {
this._parsedValue = parsedValue;
return
}
this._parsedValue = fitIntoRange(parsedValue, this.option("min"), this.option("max"))
},
_valueChangeEventHandler: function(e) {
if (!this._useMaskBehavior()) {
return this.callBase(e)
}
this._lastKey = null;
this._adjustParsedValue();
this.option("value", this._parsedValue)
},
_optionChanged: function(args) {
switch (args.name) {
case "format":
case "useMaskBehavior":
this._renderFormatter();
this._renderValue();
break;
default:
this.callBase(args)
}
},
_optionValuesEqual: function(name, oldValue, newValue) {
if ("value" === name && 0 === oldValue && 0 === newValue) {
return 1 / oldValue === 1 / newValue
}
return this.callBase.apply(this, arguments)
},
_clearCache: function() {
delete this._formattedValue;
delete this._lastKey;
delete this._parsedValue;
delete this._isDirty;
delete this._focusOutOccurs
},
_clean: function() {
this._clearCache();
this.callBase()
}
});
module.exports = NumberBoxMask;