/*
* Copyright (c) 2014-2015, Wanadev <http://www.wanadev.fr/>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Wanadev nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authored by: Fabien LOISON <http://flozz.fr/>
*/
/**
* PhotonUI - Javascript Web User Interface.
*
* @module PhotonUI
* @submodule Interactive
* @namespace photonui
*/
var Field = require("./field.js");
/**
* Numeric field.
*
* @class NumericField
* @constructor
* @extends photonui.Field
*/
var NumericField = Field.$extend({
// Constructor
__init__: function (params) {
this.$super(params);
this._bindFieldEvents();
this._unbindEvent("value-changed");
this._bindEvent("keypress", this.__html.field, "keypress", this.__onKeypress.bind(this));
this._bindEvent("keyup", this.__html.field, "keyup", this.__onKeyup.bind(this));
this._bindEvent("keydown", this.__html.field, "keydown", this.__onKeydown.bind(this));
this._bindEvent("change", this.__html.field, "change", this.__onChange.bind(this));
this._bindEvent("mousewheel", this.__html.field, "mousewheel", this.__onMouseWheel.bind(this));
this._bindEvent("mousewheel-firefox", this.__html.field, "DOMMouseScroll", this.__onMouseWheel.bind(this));
},
//////////////////////////////////////////
// Properties and Accessors //
//////////////////////////////////////////
// ====== Public properties ======
/**
* The minimum value of the field.
*
* @property min
* @type Number
* default null (no minimum);
*/
_min: null,
getMin: function () {
return this._min;
},
setMin: function (min) {
"@photonui-update";
this._min = min;
this._updateValue(this.value);
this._updateFieldValue();
},
/**
* The maximum value of the field.
*
* @property max
* @type Number
* default null (no maximum);
*/
_max: null,
getMax: function () {
return this._max;
},
setMax: function (max) {
"@photonui-update";
this._max = max;
this._updateValue(this.value);
this._updateFieldValue();
},
/**
* The incrementation step of the field.
*
* @property step
* @type Number
* default 1
*/
_step: 1,
getStep: function () {
return this._step;
},
setStep: function (step) {
this._step = Math.abs(step);
},
/**
* The number of digit after the decimal dot.
*
* @property decimalDigits
* @type Number
* @default null (no limite)
*/
_decimalDigits: null,
getDecimalDigits: function () {
"@photonui-update";
return this._decimalDigits;
},
setDecimalDigits: function (decimalDigits) {
this._decimalDigits = decimalDigits;
this._updateValue(this.value);
this._updateFieldValue();
},
/**
* The decimal symbol ("." or ",").
*
* @property decimalSymbol
* @type String
* @default: "."
*/
_decimalSymbol: ".",
getDecimalSymbol: function () {
"@photonui-update";
return this._decimalSymbol;
},
setDecimalSymbol: function (decimalSymbol) {
this._decimalSymbol = decimalSymbol;
this._updateValue(this.value);
this._updateFieldValue();
},
/**
* The field value.
*
* @property value
* @type Number
* @default 0
*/
_value: 0,
getValue: function () {
"@photonui-update";
return parseFloat(this._value);
},
setValue: function (value) {
this._updateValue(value);
this._updateFieldValue();
},
//////////////////////////////////////////
// Methods //
//////////////////////////////////////////
// ====== Private methods ======
/**
* Update the value (in the widget).
*
* @method _updateValue
* @private
* @param {String|Number} value The raw value.
*/
_updateValue: function (value) {
value = String(value).replace(",", "."); // ","
value = value.replace(/ /g, ""); // remove spaces
value = parseFloat(value);
if (isNaN(value)) {
value = 0;
}
if (this.min !== null) {
value = Math.max(this.min, value);
}
if (this.max !== null) {
value = Math.min(this.max, value);
}
if (this.decimalDigits !== null) {
value = value.toFixed(this.decimalDigits);
}
this._value = value;
},
/**
* Update the value in the html field.
*
* @method _updateFieldValue
* @private
*/
_updateFieldValue: function () {
this.__html.field.value = String(this._value).replace(".", this.decimalSymbol);
},
/**
* Validate the user inputs.
*
* @method _validateInput
* @private
* @param {String} value
* @return {Boolean}
*/
_validateInput: function (value) {
value = String(value);
value = value.replace(/ /g, ""); // remove spaces
if (/^-?[0-9]*(\.|,)?[0-9]*$/.test(value)) {
if (this.decimalDigits === 0 && !/^-?[0-9]*$/.test(value)) {
return false;
}
if (this.min !== null && this.min >= 0 && value[0] == "-") {
return false;
}
return true;
}
return false;
},
/**
* Build the widget HTML.
*
* @method _buildHtml
* @private
*/
_buildHtml: function () {
this.__html.field = document.createElement("input");
this.__html.field.className = "photonui-widget photonui-field photonui-numericfield";
this.__html.field.type = "text";
},
//////////////////////////////////////////
// Internal Events Callbacks //
//////////////////////////////////////////
/**
* @method __onKeypress
* @private
* @param event
*/
__onKeypress: function (event) {
if (event.ctrlKey ||
event.key == "ArrowLeft" ||
event.key == "ArrowRight" ||
event.key == "Backspace" ||
event.key == "Delete"
) {
return;
} else if (event.keyCode == 13) { // Enter
this._updateFieldValue();
this._callCallbacks("value-changed", [this.value]);
this.__debValueChangedFinal();
} else {
var field = this.__html.field;
var value = field.value.slice(0, field.selectionStart) +
String.fromCharCode(event.charCode) +
field.value.slice(field.selectionEnd);
if (!this._validateInput(value)) {
event.preventDefault();
}
}
},
/**
* @method __onKeyup
* @private
* @param event
*/
__onKeyup: function (event) {
var value = this.__html.field.value.replace(/[^0-9.,-]*/g, "");
if (value != this.__html.field.value) {
this.__html.field.value = value;
}
this._updateValue(this.__html.field.value);
},
/**
* @method __onChange
* @private
* @param event
*/
__onChange: function (event) {
this._updateFieldValue();
this._callCallbacks("value-changed", [this.value]);
this.__debValueChangedFinal();
},
/**
* @method __onMouseWheel
* @private
* @param event
*/
__onMouseWheel: function (event) {
if (document.activeElement != this.__html.field) {
return;
}
var wheelDelta = null;
// Webkit
if (event.wheelDeltaY !== undefined) {
wheelDelta = event.wheelDeltaY;
}
// MSIE
if (event.wheelDelta !== undefined) {
wheelDelta = event.wheelDelta;
}
// Firefox
if (event.axis !== undefined && event.detail !== undefined) {
if (event.axis == 2) { // Y
wheelDelta = -event.detail;
}
}
if (wheelDelta !== null) {
if (wheelDelta >= 0) {
this.value += this.step;
} else {
this.value -= this.step;
}
event.preventDefault();
}
this._callCallbacks("value-changed", [this.value]);
this.__debValueChangedFinal();
},
/**
* @method __onKeydown
* @private
* @param event
*/
__onKeydown: function (event) {
if (event.keyCode == 38) {
this.value += this.step;
event.preventDefault();
this._callCallbacks("value-changed", [this.value]);
this.__debValueChangedFinal();
} else if (event.keyCode == 40) {
this.value -= this.step;
event.preventDefault();
this._callCallbacks("value-changed", [this.value]);
this.__debValueChangedFinal();
}
}
});
module.exports = NumericField;
