ngx-currency-mask/src/input.handler.js

A very simple currency mask directive that allows using a number attribute with the ngModel.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var input_service_1 = require("./input.service");
var InputHandler = (function () {
    function InputHandler(htmlInputElement, options) {
        this.inputService = new input_service_1.InputService(htmlInputElement, options);
    }
    InputHandler.prototype.handleCut = function (event) {
        var _this = this;
        setTimeout(function () {
            _this.inputService.updateFieldValue();
            _this.setValue(_this.inputService.value);
            _this.onModelChange(_this.inputService.value);
        }, 0);
    };
    //TODO: Check if is possible to get selectionEnd instead selectionStart in all devices.
    InputHandler.prototype.handleInput = function (event, isGalaxy) {
        var keyCode = this.inputService.rawValue.charCodeAt(this.inputService.rawValue.length - 1);
        var rawValueLength = this.inputService.rawValue.length;
        var rawValueSelectionStart = isGalaxy ? this.inputService.inputSelection.selectionEnd : this.inputService.inputSelection.selectionStart;
        var storedRawValueLength = this.inputService.storedRawValue.length;
        this.inputService.rawValue = this.inputService.storedRawValue;
        if (rawValueLength != rawValueSelectionStart || Math.abs(rawValueLength - storedRawValueLength) != 1) {
            this.setCursorPosition(event);
            return;
        }
        if (rawValueLength < storedRawValueLength) {
            this.inputService.removeNumber(8);
        }
        if (rawValueLength > storedRawValueLength) {
            switch (keyCode) {
                case 43:
                    this.inputService.changeToPositive();
                    break;
                case 45:
                    this.inputService.changeToNegative();
                    break;
                default:
                    if (!this.inputService.canInputMoreNumbers) {
                        return;
                    }
                    this.inputService.addNumber(keyCode);
            }
        }
        this.setCursorPosition(event);
        this.onModelChange(this.inputService.value);
    };
    InputHandler.prototype.handleKeydown = function (event) {
        var keyCode = event.which || event.charCode || event.keyCode;
        if (keyCode == 8 || keyCode == 46 || keyCode == 63272) {
            event.preventDefault();
            var selectionRangeLength = Math.abs(this.inputService.inputSelection.selectionEnd - this.inputService.inputSelection.selectionStart);
            if (selectionRangeLength == 0) {
                this.inputService.removeNumber(keyCode);
                this.onModelChange(this.inputService.value);
            }
            if (selectionRangeLength == this.inputService.rawValue.length) {
                this.setValue(0);
                this.onModelChange(this.inputService.value);
            }
        }
    };
    InputHandler.prototype.handleKeypress = function (event) {
        var keyCode = event.which || event.charCode || event.keyCode;
        switch (keyCode) {
            case undefined:
            case 9:
            case 13:
                return;
            case 43:
                this.inputService.changeToPositive();
                break;
            case 45:
                this.inputService.changeToNegative();
                break;
            default:
                if (this.inputService.canInputMoreNumbers) {
                    var selectionRangeLength = Math.abs(this.inputService.inputSelection.selectionEnd - this.inputService.inputSelection.selectionStart);
                    if (selectionRangeLength == this.inputService.rawValue.length) {
                        this.setValue(0);
                    }
                    this.inputService.addNumber(keyCode);
                }
        }
        event.preventDefault();
        this.onModelChange(this.inputService.value);
    };
    InputHandler.prototype.handlePaste = function (event) {
        var _this = this;
        setTimeout(function () {
            _this.inputService.updateFieldValue();
            _this.setValue(_this.inputService.value);
            _this.onModelChange(_this.inputService.value);
        }, 1);
    };
    InputHandler.prototype.updateOptions = function (options) {
        this.inputService.updateOptions(options);
    };
    InputHandler.prototype.getOnModelChange = function () {
        return this.onModelChange;
    };
    InputHandler.prototype.setOnModelChange = function (callbackFunction) {
        this.onModelChange = callbackFunction;
    };
    InputHandler.prototype.getOnModelTouched = function () {
        return this.onModelTouched;
    };
    InputHandler.prototype.setOnModelTouched = function (callbackFunction) {
        this.onModelTouched = callbackFunction;
    };
    InputHandler.prototype.setValue = function (value) {
        this.inputService.value = value;
    };
    InputHandler.prototype.setCursorPosition = function (event) {
        setTimeout(function () {
            event.target.setSelectionRange(event.target.value.length, event.target.value.length);
        }, 0);
    };
    return InputHandler;
}());
exports.InputHandler = InputHandler;
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