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/*
*jQuery UI Spinner 1.21
*
*Copyright (c) 2009-2010 Brant Burnett
*Copyright (c) 2010 Johannes Geppert http://www.jgeppert.com
*Dual licensed under the MIT or GPL Version 2 licenses.
*/
(function($, undefined) {
var
// constants
active = 'ui-state-active',
hover = 'ui-state-hover',
disabled = 'ui-state-disabled',
keyCode = $.ui.keyCode,
up = keyCode.UP,
down = keyCode.DOWN,
right = keyCode.RIGHT,
left = keyCode.LEFT,
pageUp = keyCode.PAGE_UP,
pageDown = keyCode.PAGE_DOWN,
home = keyCode.HOME,
end = keyCode.END,
msie = $.browser.msie,
mouseWheelEventName = $.browser.mozilla ? 'DOMMouseScroll' : 'mousewheel',
// namespace for events on input
eventNamespace = '.uispinner',
// only these special keys will be accepted, all others will be ignored unless CTRL or ALT are pressed
validKeys = [up, down, right, left, pageUp, pageDown, home, end, keyCode.BACKSPACE, keyCode.DELETE, keyCode.TAB],
// stores the currently focused spinner
// Note: due to oddities in the focus/blur events, this is part of a two-part system for confirming focus
// this must set to the control, and the focus variable must be true
// this is because hitting up/down arrows with mouse causes focus to change, but blur event for previous control doesn't fire
focusCtrl;
$.widget('ui.spinner', {
options: {
min: null,
max: null,
allowNull: false,
group: '',
point: '.',
prefix: '',
suffix: '',
places: null, // null causes it to detect the number of places in step
defaultStep: 1, // real value is 'step', and should be passed as such. This value is used to detect if passed value should override HTML5 attribute
largeStep: 10,
mouseWheel: true,
increment: 'slow',
className: null,
showOn: 'always',
width: 16,
upIconClass: "ui-icon-triangle-1-n",
downIconClass: "ui-icon-triangle-1-s",
format: function(num, places) {
var options = this,
regex = /(\d+)(\d{3})/,
result = ((isNaN(num) ? 0 : Math.abs(num)).toFixed(places)) + '';
for (result = result.replace('.', options.point); regex.test(result) && options.group; result=result.replace(regex, '$1'+options.group+'$2')) {}
return (num < 0 ? '-' : '') + options.prefix + result + options.suffix;
},
parse: function(val) {
var options = this;
if (options.group == '.') {
val = val.replace('.', '');
}
if (options.point != '.') {
val = val.replace(options.point, '.');
}
return parseFloat(val.replace(/[^0-9\-\.]/g, ''));
}
},
// * Widget fields *
// curvalue - current value
// places - currently effective number of decimal places
// oWidth - original input width (used for destroy)
// oMargin - original input right margin (used for destroy)
// counter - number of spins at the current spin speed
// incCounter - index within options.increment of the current spin speed
// selfChange - indicates that change event is being fired by the widget, so don't reprocess input value
// inputMaxLength - initial maxLength value on the input
// focused - this spinner currently has the focus
_create: function() {
// shortcuts
var self = this,
input = self.element,
type = input.attr('type');
if (!input.is('input') || ((type != 'text') && (type != 'number'))) {
console.error('Invalid target for ui.spinner');
return;
}
self._procOptions(true);
self._createButtons(input);
if (!input.is(':enabled')) {
self.disable();
}
},
_createButtons: function(input) {
function getMargin(margin) {
// IE8 returns auto if no margin specified
return margin == 'auto' ? 0 : parseInt(margin, 10);
}
var self = this,
options = self.options,
className = options.className,
buttonWidth = options.width,
showOn = options.showOn,
box = $.support.boxModel,
height = input.outerHeight(),
rightMargin = self.oMargin = getMargin(input.css('margin-right')), // store original width and right margin for later destroy
wrapper = self.wrapper = input.css({ width: (self.oWidth = (box ? input.width() : input.outerWidth())) - buttonWidth,
marginRight: rightMargin + buttonWidth, textAlign: 'right' })
.after('').next(),
btnContainer = self.btnContainer = $(
'
' +
'
' +
'
' +
'
'),
// object shortcuts
upButton, downButton, buttons, icons,
hoverDelay,
hoverDelayCallback,
// current state booleans
hovered, inKeyDown, inSpecialKey, inMouseDown,
// used to reverse left/right key directions
rtl = input[0].dir == 'rtl';
// apply className before doing any calculations because it could affect them
if (className) { wrapper.addClass(className); }
wrapper.append(btnContainer.css({ height: height, left: -buttonWidth-rightMargin,
// use offset calculation to fix vertical position in Firefox
top: (input.offset().top - wrapper.offset().top) + 'px' }));
buttons = self.buttons = btnContainer.find('.ui-spinner-button');
buttons.css({ width: buttonWidth - (box ? buttons.outerWidth() - buttons.width() : 0), height: height/2 - (box ? buttons.outerHeight() - buttons.height() : 0) });
upButton = buttons[0];
downButton = buttons[1];
// fix icon centering
icons = buttons.find('.ui-icon');
icons.css({ marginLeft: (buttons.innerWidth() - icons.width()) / 2, marginTop: (buttons.innerHeight() - icons.height()) / 2 });
// set width of btnContainer to be the same as the buttons
btnContainer.width(buttons.outerWidth());
if (showOn != 'always') {
btnContainer.css('opacity', 0);
}
/* Event Bindings */
// bind hover events to show/hide buttons
if (showOn == 'hover' || showOn == 'both') {
buttons.add(input)
.bind('mouseenter' + eventNamespace, function() {
setHoverDelay(function() {
hovered = true;
if (!self.focused || (showOn == 'hover')) { // ignore focus flag if show on hover only
self.showButtons();
}
});
})
.bind('mouseleave' + eventNamespace, function hoverOut() {
setHoverDelay(function() {
hovered = false;
if (!self.focused || (showOn == 'hover')) { // ignore focus flag if show on hover only
self.hideButtons();
}
});
});
}
function mouseDown() {
if (!options.disabled) {
var input = self.element[0],
dir = (this === upButton ? 1 : -1);
input.focus();
input.select();
$(this).addClass(active);
inMouseDown = true;
self._startSpin(dir);
}
return false;
}
function mouseUp() {
if (inMouseDown) {
$(this).removeClass(active);
self._stopSpin();
inMouseDown = false;
}
return false;
}
buttons.hover(function() {
// ensure that both buttons have hover removed, sometimes they get left on
self.buttons.removeClass(hover);
if (!options.disabled) { $(this).addClass(hover); }
}, function() {
$(this).removeClass(hover);
})
.mousedown(mouseDown)
.mouseup(mouseUp)
.mouseout(mouseUp);
if (msie) {
// fixes dbl click not firing second mouse down in IE
buttons.dblclick(function() {
if (!options.disabled) {
// make sure any changes are posted
self._change();
self._doSpin((this === upButton ? 1 : -1) * options.step);
}
return false;
})
// fixes IE8 dbl click selection highlight
.bind('selectstart', function() {return false;});
}
input.bind('keydown' + eventNamespace, function(e) {
var dir, large, limit,
keyCode = e.keyCode; // shortcut for minimization
if (e.ctrl || e.alt) { return true; } // ignore these events
if (isSpecialKey(keyCode)) { inSpecialKey = true; }
if (inKeyDown) { return false; } // only one direction at a time, and suppress invalid keys
switch (keyCode) {
case up:
case pageUp:
dir = 1;
large = keyCode == pageUp;
break;
case down:
case pageDown:
dir = -1;
large = keyCode == pageDown;
break;
case right:
case left:
dir = (keyCode == right) ^ rtl ? 1 : -1;
break;
case home:
limit = self.options.min;
if (limit !== null) { self._setValue(limit); }
return false;
case end:
limit = self.options.max;
limit = self.options.max;
if (limit !== null) { self._setValue(limit); }
return false;
}
if (dir) { // only process if dir was set above
if (!inKeyDown && !options.disabled) {
keyDir = dir;
$(dir > 0 ? upButton : downButton).addClass(active);
inKeyDown = true;
self._startSpin(dir, large);
}
return false;
}
})
.bind('keyup' + eventNamespace, function(e) {
if (e.ctrl || e.alt) { return true; } // ignore these events
if (isSpecialKey(keyCode)) { inSpecialKey = false; }
switch (e.keyCode) {
case up:
case right:
case pageUp:
case down:
case left:
case pageDown:
buttons.removeClass(active);
self._stopSpin();
inKeyDown = false;
return false;
}
})
.bind('change' + eventNamespace, function() { self._change(); })
.bind('focus' + eventNamespace, function() {
function selectAll() {
self.element.select();
}
// add delay for Chrome, but breaks IE8
if(msie) { selectAll(); }
else { setTimeout(selectAll, 0); }
self.focused = true;
focusCtrl = self;
if (!hovered && (showOn == 'focus' || showOn == 'both')) { // hovered will only be set if hover affects show
self.showButtons();
}
})
.bind('blur' + eventNamespace, function() {
self.focused = false;
if (!hovered && (showOn == 'focus' || showOn == 'both')) { // hovered will only be set if hover affects show
self.hideButtons();
}
});
function isSpecialKey(keyCode) {
for (var i=0; i= '0') && (ch <= '9') || (ch == '-')) { return false; }
if (((self.places > 0) && (ch == options.point)) || (ch == options.group)) { return false; }
return true;
}
// used to delay start of hover show/hide by 100 milliseconds
function setHoverDelay(callback) {
if (hoverDelay) {
// don't do anything if trying to set the same callback again
if (callback === hoverDelayCallback) { return; }
clearTimeout(hoverDelay);
}
function execute() {
hoverDelay = 0;
callback();
}
hoverDelayCallback = callback;
hoverDelay = setTimeout(execute, 100);
}
},
_procOptions: function(init) {
var self = this,
input = self.element,
options = self.options,
min = options.min,
max = options.max,
step = options.step,
places = options.places,
maxlength = -1, temp;
// setup increment based on speed string
if (options.increment == 'slow') {
options.increment = [{count: 1, mult: 1, delay: 250},
{count: 3, mult: 1, delay: 100},
{count: 0, mult: 1, delay: 50}];
}
else if (options.increment == 'fast') {
options.increment = [{count: 1, mult: 1, delay: 250},
{count: 19, mult: 1, delay: 100},
{count: 80, mult: 1, delay: 20},
{count: 100, mult: 10, delay: 20},
{count: 0, mult: 100, delay: 20}];
}
if ((min === null) && ((temp = input.attr('min')) !== null)) {
min = parseFloat(temp);
}
if ((max === null) && ((temp = input.attr('max')) !== null)) {
max = parseFloat(temp);
}
if (!step && ((temp = input.attr('step')) !== null)) {
if (temp != 'any') {
step = parseFloat(temp);
options.largeStep *= step;
}
}
options.step = step = step || options.defaultStep;
// Process step for decimal places if none are specified
if ((places === null) && ((temp = step + '').indexOf('.') != -1)) {
places = temp.length - temp.indexOf('.') - 1;
}
self.places = places;
if ((max !== null) && (min !== null)) {
// ensure that min is less than or equal to max
if (min > max) { min = max; }
// set maxlength based on min/max
maxlength = Math.max(Math.max(maxlength, options.format(max, places, input).length), options.format(min, places, input).length);
}
// only lookup input maxLength on init
if (init) { self.inputMaxLength = input[0].maxLength; }
temp = self.inputMaxLength;
if (temp > 0) {
maxlength = maxlength > 0 ? Math.min(temp, maxlength) : temp;
temp = Math.pow(10, maxlength) - 1;
if ((max === null) || (max > temp)) { max = temp; }
temp = -(temp + 1) / 10 + 1;
if ((min === null) || (min < temp)) { min = temp; }
}
if (maxlength > 0) { input.attr('maxlength', maxlength); }
options.min = min;
options.max = max;
// ensures that current value meets constraints
self._change();
input.unbind(mouseWheelEventName + eventNamespace);
if (options.mouseWheel) {
input.bind(mouseWheelEventName + eventNamespace, self._mouseWheel);
}
},
_mouseWheel: function(e) {
var self = $.data(this, 'spinner');
if (!self.options.disabled && self.focused && (focusCtrl === self)) {
// make sure changes are posted
self._change();
self._doSpin(((e.wheelDelta || -e.detail) > 0 ? 1 : -1) * self.options.step);
return false;
}
},
// sets an interval to call the _spin function
_setTimer: function(delay, dir, large) {
function fire() {
self._spin(dir, large);
}
var self = this;
self._stopSpin();
self.timer = setInterval(fire, delay);
},
// stops the spin timer
_stopSpin: function() {
if (this.timer) {
clearInterval(this.timer);
this.timer = 0;
}
},
// performs first step, and starts the spin timer if increment is set
_startSpin: function(dir, large) {
// shortcuts
var self = this,
options = self.options,
increment = options.increment;
// make sure any changes are posted
self._change();
self._doSpin(dir * (large ? self.options.largeStep : self.options.step));
if (increment && increment.length > 0) {
self.counter = 0;
self.incCounter = 0;
self._setTimer(increment[0].delay, dir, large);
}
},
// called by timer for each step in the spin
_spin: function(dir, large) {
// shortcuts
var self = this,
increment = self.options.increment,
curIncrement = increment[self.incCounter];
self._doSpin(dir * curIncrement.mult * (large ? self.options.largeStep : self.options.step));
self.counter++;
if ((self.counter > curIncrement.count) && (self.incCounter < increment.length-1)) {
self.counter = 0;
curIncrement = increment[++self.incCounter];
self._setTimer(curIncrement.delay, dir, large);
}
},
// actually spins the timer by a step
_doSpin: function(step) {
// shortcut
var self = this,
value = self.curvalue;
if (value === null) {
value = (step > 0 ? self.options.min : self.options.max) || 0;
}
self._setValue(value + step);
},
// Parse the value currently in the field
_parseValue: function() {
var value = this.element.val();
return value ? this.options.parse(value, this.element) : null;
},
_validate: function(value) {
var options = this.options,
min = options.min,
max = options.max;
if ((value === null) && !options.allowNull) {
value = this.curvalue !== null ? this.curvalue : min || max || 0; // must confirm not null in case just initializing and had blank value
}
if ((max !== null) && (value > max)) {
return max;
}
else if ((min !== null) && (value < min)) {
return min;
}
else {
return value;
}
},
_change: function() {
var self = this, // shortcut
value = self._parseValue(),
min = self.options.min,
max = self.options.max;
// don't reprocess if change was self triggered
if (!self.selfChange) {
if (isNaN(value)) {
value = self.curvalue;
}
self._setValue(value, true);
}
},
// overrides _setData to force option parsing
_setOption: function(key, value) {
$.Widget.prototype._setOption.call(this, key, value);
this._procOptions();
},
increment: function() {
this._doSpin(this.options.step);
},
decrement: function() {
this._doSpin(-this.options.step);
},
showButtons: function(immediate) {
var btnContainer = this.btnContainer.stop();
if (immediate) {
btnContainer.css('opacity', 1);
}
else {
btnContainer.fadeTo('fast', 1);
}
},
hideButtons: function(immediate) {
var btnContainer = this.btnContainer.stop();
if (immediate) {
btnContainer.css('opacity', 0);
}
else {
btnContainer.fadeTo('fast', 0);
}
this.buttons.removeClass(hover);
},
// Set the value directly
_setValue: function(value, suppressFireEvent) {
var self = this;
self.curvalue = value = self._validate(value);
self.element.val(value !== null ?
self.options.format(value, self.places, self.element) :
'');
if (!suppressFireEvent) {
self.selfChange = true;
self.element.change();
self.selfChange = false;
}
},
// Set or retrieve the value
value: function(newValue) {
if (arguments.length) {
this._setValue(newValue);
// maintains chaining
return this.element;
}
return this.curvalue;
},
enable: function() {
this.buttons.removeClass(disabled);
this.element[0].disabled = false;
$.Widget.prototype.enable.call(this);
},
disable: function() {
this.buttons.addClass(disabled)
// in case hover class got left on
.removeClass(hover);
this.element[0].disabled = true;
$.Widget.prototype.disable.call(this);
},
destroy: function(target) {
this.wrapper.remove();
this.element.unbind(eventNamespace).css({ width: this.oWidth, marginRight: this.oMargin });
$.Widget.prototype.destroy.call(this);
}
});
})( jQuery );
