<html>
<head>
<title>The source code</title>
<link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="../resources/prettify/prettify.js"></script>
</head>
<body onload="prettyPrint();">
<pre class="prettyprint lang-js"><div id="cls-Ext.ux.Spinner"></div>/**
* @class Ext.ux.Spinner
* @extends Ext.util.Observable
* Creates a Spinner control utilized by Ext.ux.form.SpinnerField
*/
Ext.ux.Spinner = Ext.extend(Ext.util.Observable, {
incrementValue: 1,
alternateIncrementValue: 5,
triggerClass: 'x-form-spinner-trigger',
splitterClass: 'x-form-spinner-splitter',
alternateKey: Ext.EventObject.shiftKey,
defaultValue: 0,
accelerate: false,
constructor: function(config){
Ext.ux.Spinner.superclass.constructor.call(this, config);
Ext.apply(this, config);
this.mimicing = false;
},
init: function(field){
this.field = field;
field.afterMethod('onRender', this.doRender, this);
field.afterMethod('onEnable', this.doEnable, this);
field.afterMethod('onDisable', this.doDisable, this);
field.afterMethod('afterRender', this.doAfterRender, this);
field.afterMethod('onResize', this.doResize, this);
field.afterMethod('onFocus', this.doFocus, this);
field.beforeMethod('onDestroy', this.doDestroy, this);
},
doRender: function(ct, position){
var el = this.el = this.field.getEl();
var f = this.field;
if (!f.wrap) {
f.wrap = this.wrap = el.wrap({
cls: "x-form-field-wrap"
});
}
else {
this.wrap = f.wrap.addClass('x-form-field-wrap');
}
this.trigger = this.wrap.createChild({
tag: "img",
src: Ext.BLANK_IMAGE_URL,
cls: "x-form-trigger " + this.triggerClass
});
if (!f.width) {
this.wrap.setWidth(el.getWidth() + this.trigger.getWidth());
}
this.splitter = this.wrap.createChild({
tag: 'div',
cls: this.splitterClass,
style: 'width:13px; height:2px;'
});
this.splitter.setRight((Ext.isIE) ? 1 : 2).setTop(10).show();
this.proxy = this.trigger.createProxy('', this.splitter, true);
this.proxy.addClass("x-form-spinner-proxy");
this.proxy.setStyle('left', '0px');
this.proxy.setSize(14, 1);
this.proxy.hide();
this.dd = new Ext.dd.DDProxy(this.splitter.dom.id, "SpinnerDrag", {
dragElId: this.proxy.id
});
this.initTrigger();
this.initSpinner();
},
doAfterRender: function(){
var y;
if (Ext.isIE && this.el.getY() != (y = this.trigger.getY())) {
this.el.position();
this.el.setY(y);
}
},
doEnable: function(){
if (this.wrap) {
this.wrap.removeClass(this.field.disabledClass);
}
},
doDisable: function(){
if (this.wrap) {
this.wrap.addClass(this.field.disabledClass);
this.el.removeClass(this.field.disabledClass);
}
},
doResize: function(w, h){
if (typeof w == 'number') {
this.el.setWidth(this.field.adjustWidth('input', w - this.trigger.getWidth()));
}
this.wrap.setWidth(this.el.getWidth() + this.trigger.getWidth());
},
doFocus: function(){
if (!this.mimicing) {
this.wrap.addClass('x-trigger-wrap-focus');
this.mimicing = true;
Ext.get(Ext.isIE ? document.body : document).on("mousedown", this.mimicBlur, this, {
delay: 10
});
this.el.on('keydown', this.checkTab, this);
}
},
// private
checkTab: function(e){
if (e.getKey() == e.TAB) {
this.triggerBlur();
}
},
// private
mimicBlur: function(e){
if (!this.wrap.contains(e.target) && this.field.validateBlur(e)) {
this.triggerBlur();
}
},
// private
triggerBlur: function(){
this.mimicing = false;
Ext.get(Ext.isIE ? document.body : document).un("mousedown", this.mimicBlur, this);
this.el.un("keydown", this.checkTab, this);
this.field.beforeBlur();
this.wrap.removeClass('x-trigger-wrap-focus');
this.field.onBlur.call(this.field);
},
initTrigger: function(){
this.trigger.addClassOnOver('x-form-trigger-over');
this.trigger.addClassOnClick('x-form-trigger-click');
},
initSpinner: function(){
this.field.addEvents({
'spin': true,
'spinup': true,
'spindown': true
});
this.keyNav = new Ext.KeyNav(this.el, {
"up": function(e){
e.preventDefault();
this.onSpinUp();
},
"down": function(e){
e.preventDefault();
this.onSpinDown();
},
"pageUp": function(e){
e.preventDefault();
this.onSpinUpAlternate();
},
"pageDown": function(e){
e.preventDefault();
this.onSpinDownAlternate();
},
scope: this
});
this.repeater = new Ext.util.ClickRepeater(this.trigger, {
accelerate: this.accelerate
});
this.field.mon(this.repeater, "click", this.onTriggerClick, this, {
preventDefault: true
});
this.field.mon(this.trigger, {
mouseover: this.onMouseOver,
mouseout: this.onMouseOut,
mousemove: this.onMouseMove,
mousedown: this.onMouseDown,
mouseup: this.onMouseUp,
scope: this,
preventDefault: true
});
this.field.mon(this.wrap, "mousewheel", this.handleMouseWheel, this);
this.dd.setXConstraint(0, 0, 10)
this.dd.setYConstraint(1500, 1500, 10);
this.dd.endDrag = this.endDrag.createDelegate(this);
this.dd.startDrag = this.startDrag.createDelegate(this);
this.dd.onDrag = this.onDrag.createDelegate(this);
},
onMouseOver: function(){
if (this.disabled) {
return;
}
var middle = this.getMiddle();
this.tmpHoverClass = (Ext.EventObject.getPageY() < middle) ? 'x-form-spinner-overup' : 'x-form-spinner-overdown';
this.trigger.addClass(this.tmpHoverClass);
},
//private
onMouseOut: function(){
this.trigger.removeClass(this.tmpHoverClass);
},
//private
onMouseMove: function(){
if (this.disabled) {
return;
}
var middle = this.getMiddle();
if (((Ext.EventObject.getPageY() > middle) && this.tmpHoverClass == "x-form-spinner-overup") ||
((Ext.EventObject.getPageY() < middle) && this.tmpHoverClass == "x-form-spinner-overdown")) {
}
},
//private
onMouseDown: function(){
if (this.disabled) {
return;
}
var middle = this.getMiddle();
this.tmpClickClass = (Ext.EventObject.getPageY() < middle) ? 'x-form-spinner-clickup' : 'x-form-spinner-clickdown';
this.trigger.addClass(this.tmpClickClass);
},
//private
onMouseUp: function(){
this.trigger.removeClass(this.tmpClickClass);
},
//private
onTriggerClick: function(){
if (this.disabled || this.el.dom.readOnly) {
return;
}
var middle = this.getMiddle();
var ud = (Ext.EventObject.getPageY() < middle) ? 'Up' : 'Down';
this['onSpin' + ud]();
},
//private
getMiddle: function(){
var t = this.trigger.getTop();
var h = this.trigger.getHeight();
var middle = t + (h / 2);
return middle;
},
//private
//checks if control is allowed to spin
isSpinnable: function(){
if (this.disabled || this.el.dom.readOnly) {
Ext.EventObject.preventDefault(); //prevent scrolling when disabled/readonly
return false;
}
return true;
},
handleMouseWheel: function(e){
//disable scrolling when not focused
if (this.wrap.hasClass('x-trigger-wrap-focus') == false) {
return;
}
var delta = e.getWheelDelta();
if (delta > 0) {
this.onSpinUp();
e.stopEvent();
}
else
if (delta < 0) {
this.onSpinDown();
e.stopEvent();
}
},
//private
startDrag: function(){
this.proxy.show();
this._previousY = Ext.fly(this.dd.getDragEl()).getTop();
},
//private
endDrag: function(){
this.proxy.hide();
},
//private
onDrag: function(){
if (this.disabled) {
return;
}
var y = Ext.fly(this.dd.getDragEl()).getTop();
var ud = '';
if (this._previousY > y) {
ud = 'Up';
} //up
if (this._previousY < y) {
ud = 'Down';
} //down
if (ud != '') {
this['onSpin' + ud]();
}
this._previousY = y;
},
//private
onSpinUp: function(){
if (this.isSpinnable() == false) {
return;
}
if (Ext.EventObject.shiftKey == true) {
this.onSpinUpAlternate();
return;
}
else {
this.spin(false, false);
}
this.field.fireEvent("spin", this);
this.field.fireEvent("spinup", this);
},
//private
onSpinDown: function(){
if (this.isSpinnable() == false) {
return;
}
if (Ext.EventObject.shiftKey == true) {
this.onSpinDownAlternate();
return;
}
else {
this.spin(true, false);
}
this.field.fireEvent("spin", this);
this.field.fireEvent("spindown", this);
},
//private
onSpinUpAlternate: function(){
if (this.isSpinnable() == false) {
return;
}
this.spin(false, true);
this.field.fireEvent("spin", this);
this.field.fireEvent("spinup", this);
},
//private
onSpinDownAlternate: function(){
if (this.isSpinnable() == false) {
return;
}
this.spin(true, true);
this.field.fireEvent("spin", this);
this.field.fireEvent("spindown", this);
},
spin: function(down, alternate){
var v = parseFloat(this.field.getValue());
var incr = (alternate == true) ? this.alternateIncrementValue : this.incrementValue;
(down == true) ? v -= incr : v += incr;
v = (isNaN(v)) ? this.defaultValue : v;
v = this.fixBoundries(v);
this.field.setRawValue(v);
},
fixBoundries: function(value){
var v = value;
if (this.field.minValue != undefined && v < this.field.minValue) {
v = this.field.minValue;
}
if (this.field.maxValue != undefined && v > this.field.maxValue) {
v = this.field.maxValue;
}
return this.fixPrecision(v);
},
// private
fixPrecision: function(value){
var nan = isNaN(value);
if (!this.field.allowDecimals || this.field.decimalPrecision == -1 || nan || !value) {
return nan ? '' : value;
}
return parseFloat(parseFloat(value).toFixed(this.field.decimalPrecision));
},
doDestroy: function(){
if (this.trigger) {
this.trigger.remove();
}
if (this.wrap) {
this.wrap.remove();
delete this.field.wrap;
}
if (this.splitter) {
this.splitter.remove();
}
if (this.dd) {
this.dd.unreg();
this.dd = null;
}
if (this.proxy) {
this.proxy.remove();
}
if (this.repeater) {
this.repeater.purgeListeners();
}
}
});
//backwards compat
Ext.form.Spinner = Ext.ux.Spinner;</pre>
</body>
</html>