/*
* jQuery UI Slider 1.7.1
*
* Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Slider
*
* Depends:
* ui.core.js
*/
(function($) {
$.widget("ui.slider", $.extend({}, $.ui.mouse, {
_init: function() {
var self = this, o = this.options;
this._keySliding = false;
this._handleIndex = null;
this._detectOrientation();
this._mouseInit();
this.element
.addClass("ui-slider"
+ " ui-slider-" + this.orientation
+ " ui-widget"
+ " ui-widget-content"
+ " ui-corner-all");
this.range = $([]);
if (o.range) {
if (o.range === true) {
this.range = $('<div></div>');
if (!o.values) o.values = [this._valueMin(), this._valueMin()];
if (o.values.length && o.values.length != 2) {
o.values = [o.values[0], o.values[0]];
}
} else {
this.range = $('<div></div>');
}
this.range
.appendTo(this.element)
.addClass("ui-slider-range");
if (o.range == "min" || o.range == "max") {
this.range.addClass("ui-slider-range-" + o.range);
}
// note: this isn't the most fittingly semantic framework class for this element,
// but worked best visually with a variety of themes
this.range.addClass("ui-widget-header");
}
if ($(".ui-slider-handle", this.element).length == 0)
$('<a href="#"></a>')
.appendTo(this.element)
.addClass("ui-slider-handle");
if (o.values && o.values.length) {
while ($(".ui-slider-handle", this.element).length < o.values.length)
$('<a href="#"></a>')
.appendTo(this.element)
.addClass("ui-slider-handle");
}
this.handles = $(".ui-slider-handle", this.element)
.addClass("ui-state-default"
+ " ui-corner-all");
this.handle = this.handles.eq(0);
this.handles.add(this.range).filter("a")
.click(function(event) { event.preventDefault(); })
.hover(function() { $(this).addClass('ui-state-hover'); }, function() { $(this).removeClass('ui-state-hover'); })
.focus(function() { $(".ui-slider .ui-state-focus").removeClass('ui-state-focus'); $(this).addClass('ui-state-focus'); })
.blur(function() { $(this).removeClass('ui-state-focus'); });
this.handles.each(function(i) {
$(this).data("index.ui-slider-handle", i);
});
this.handles.keydown(function(event) {
var ret = true;
var index = $(this).data("index.ui-slider-handle");
if (self.options.disabled)
return;
switch (event.keyCode) {
case $.ui.keyCode.HOME:
case $.ui.keyCode.END:
case $.ui.keyCode.UP:
case $.ui.keyCode.RIGHT:
case $.ui.keyCode.DOWN:
case $.ui.keyCode.LEFT:
ret = false;
if (!self._keySliding) {
self._keySliding = true;
$(this).addClass("ui-state-active");
self._start(event, index);
}
break;
}
var curVal, newVal, step = self._step();
if (self.options.values && self.options.values.length) {
curVal = newVal = self.values(index);
} else {
curVal = newVal = self.value();
}
switch (event.keyCode) {
case $.ui.keyCode.HOME:
newVal = self._valueMin();
break;
case $.ui.keyCode.END:
newVal = self._valueMax();
break;
case $.ui.keyCode.UP:
case $.ui.keyCode.RIGHT:
if(curVal == self._valueMax()) return;
newVal = curVal + step;
break;
case $.ui.keyCode.DOWN:
case $.ui.keyCode.LEFT:
if(curVal == self._valueMin()) return;
newVal = curVal - step;
break;
}
self._slide(event, index, newVal);
return ret;
}).keyup(function(event) {
var index = $(this).data("index.ui-slider-handle");
if (self._keySliding) {
self._stop(event, index);
self._change(event, index);
self._keySliding = false;
$(this).removeClass("ui-state-active");
}
});
this._refreshValue();
},
destroy: function() {
this.handles.remove();
this.range.remove();
this.element
.removeClass("ui-slider"
+ " ui-slider-horizontal"
+ " ui-slider-vertical"
+ " ui-slider-disabled"
+ " ui-widget"
+ " ui-widget-content"
+ " ui-corner-all")
.removeData("slider")
.unbind(".slider");
this._mouseDestroy();
},
_mouseCapture: function(event) {
var o = this.options;
if (o.disabled)
return false;
this.elementSize = {
width: this.element.outerWidth(),
height: this.element.outerHeight()
};
this.elementOffset = this.element.offset();
var position = { x: event.pageX, y: event.pageY };
var normValue = this._normValueFromMouse(position);
var distance = this._valueMax() - this._valueMin() + 1, closestHandle;
var self = this, index;
this.handles.each(function(i) {
var thisDistance = Math.abs(normValue - self.values(i));
if (distance > thisDistance) {
distance = thisDistance;
closestHandle = $(this);
index = i;
}
});
// workaround for bug #3736 (if both handles of a range are at 0,
// the first is always used as the one with least distance,
// and moving it is obviously prevented by preventing negative ranges)
if(o.range == true && this.values(1) == o.min) {
closestHandle = $(this.handles[++index]);
}
this._start(event, index);
self._handleIndex = index;
closestHandle
.addClass("ui-state-active")
.focus();
var offset = closestHandle.offset();
var mouseOverHandle = !$(event.target).parents().andSelf().is('.ui-slider-handle');
this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
left: event.pageX - offset.left - (closestHandle.width() / 2),
top: event.pageY - offset.top
- (closestHandle.height() / 2)
- (parseInt(closestHandle.css('borderTopWidth'),10) || 0)
- (parseInt(closestHandle.css('borderBottomWidth'),10) || 0)
+ (parseInt(closestHandle.css('marginTop'),10) || 0)
};
normValue = this._normValueFromMouse(position);
this._slide(event, index, normValue);
return true;
},
_mouseStart: function(event) {
return true;
},
_mouseDrag: function(event) {
var position = { x: event.pageX, y: event.pageY };
var normValue = this._normValueFromMouse(position);
this._slide(event, this._handleIndex, normValue);
return false;
},
_mouseStop: function(event) {
this.handles.removeClass("ui-state-active");
this._stop(event, this._handleIndex);
this._change(event, this._handleIndex);
this._handleIndex = null;
this._clickOffset = null;
return false;
},
_detectOrientation: function() {
this.orientation = this.options.orientation == 'vertical' ? 'vertical' : 'horizontal';
},
_normValueFromMouse: function(position) {
var pixelTotal, pixelMouse;
if ('horizontal' == this.orientation) {
pixelTotal = this.elementSize.width;
pixelMouse = position.x - this.elementOffset.left - (this._clickOffset ? this._clickOffset.left : 0);
} else {
pixelTotal = this.elementSize.height;
pixelMouse = position.y - this.elementOffset.top - (this._clickOffset ? this._clickOffset.top : 0);
}
var percentMouse = (pixelMouse / pixelTotal);
if (percentMouse > 1) percentMouse = 1;
if (percentMouse < 0) percentMouse = 0;
if ('vertical' == this.orientation)
percentMouse = 1 - percentMouse;
var valueTotal = this._valueMax() - this._valueMin(),
valueMouse = percentMouse * valueTotal,
valueMouseModStep = valueMouse % this.options.step,
normValue = this._valueMin() + valueMouse - valueMouseModStep;
if (valueMouseModStep > (this.options.step / 2))
normValue += this.options.step;
// Since JavaScript has problems with large floats, round
// the final value to 5 digits after the decimal point (see #4124)
return parseFloat(normValue.toFixed(5));
},
_start: function(event, index) {
var uiHash = {
handle: this.handles[index],
value: this.value()
};
if (this.options.values && this.options.values.length) {
uiHash.value = this.values(index)
uiHash.values = this.values()
}
this._trigger("start", event, uiHash);
},
_slide: function(event, index, newVal) {
var handle = this.handles[index];
if (this.options.values && this.options.values.length) {
var otherVal = this.values(index ? 0 : 1);
if ((index == 0 && newVal >= otherVal) || (index == 1 && newVal <= otherVal))
newVal = otherVal;
if (newVal != this.values(index)) {
var newValues = this.values();
newValues[index] = newVal;
// A slide can be canceled by returning false from the slide callback
var allowed = this._trigger("slide", event, {
handle: this.handles[index],
value: newVal,
values: newValues
});
var otherVal = this.values(index ? 0 : 1);
if (allowed !== false) {
this.values(index, newVal, ( event.type == 'mousedown' && this.options.animate ), true);
}
}
} else {
if (newVal != this.value()) {
// A slide can be canceled by returning false from the slide callback
var allowed = this._trigger("slide", event, {
handle: this.handles[index],
value: newVal
});
if (allowed !== false) {
this._setData('value', newVal, ( event.type == 'mousedown' && this.options.animate ));
}
}
}
},
_stop: function(event, index) {
var uiHash = {
handle: this.handles[index],
value: this.value()
};
if (this.options.values && this.options.values.length) {
uiHash.value = this.values(index)
uiHash.values = this.values()
}
this._trigger("stop", event, uiHash);
},
_change: function(event, index) {
var uiHash = {
handle: this.handles[index],
value: this.value()
};
if (this.options.values && this.options.values.length) {
uiHash.value = this.values(index)
uiHash.values = this.values()
}
this._trigger("change", event, uiHash);
},
value: function(newValue) {
if (arguments.length) {
this._setData("value", newValue);
this._change(null, 0);
}
return this._value();
},
values: function(index, newValue, animated, noPropagation) {
if (arguments.length > 1) {
this.options.values[index] = newValue;
this._refreshValue(animated);
if(!noPropagation) this._change(null, index);
}
if (arguments.length) {
if (this.options.values && this.options.values.length) {
return this._values(index);
} else {
return this.value();
}
} else {
return this._values();
}
},
_setData: function(key, value, animated) {
$.widget.prototype._setData.apply(this, arguments);
switch (key) {
case 'orientation':
this._detectOrientation();
this.element
.removeClass("ui-slider-horizontal ui-slider-vertical")
.addClass("ui-slider-" + this.orientation);
this._refreshValue(animated);
break;
case 'value':
this._refreshValue(animated);
break;
}
},
_step: function() {
var step = this.options.step;
return step;
},
_value: function() {
var val = this.options.value;
if (val < this._valueMin()) val = this._valueMin();
if (val > this._valueMax()) val = this._valueMax();
return val;
},
_values: function(index) {
if (arguments.length) {
var val = this.options.values[index];
if (val < this._valueMin()) val = this._valueMin();
if (val > this._valueMax()) val = this._valueMax();
return val;
} else {
return this.options.values;
}
},
_valueMin: function() {
var valueMin = this.options.min;
return valueMin;
},
_valueMax: function() {
var valueMax = this.options.max;
return valueMax;
},
_refreshValue: function(animate) {
var oRange = this.options.range, o = this.options, self = this;
if (this.options.values && this.options.values.length) {
var vp0, vp1;
this.handles.each(function(i, j) {
var valPercent = (self.values(i) - self._valueMin()) / (self._valueMax() - self._valueMin()) * 100;
var _set = {}; _set[self.orientation == 'horizontal' ? 'left' : 'bottom'] = valPercent + '%';
$(this).stop(1,1)[animate ? 'animate' : 'css'](_set, o.animate);
if (self.options.range === true) {
if (self.orientation == 'horizontal') {
(i == 0) && self.range.stop(1,1)[animate ? 'animate' : 'css']({ left: valPercent + '%' }, o.animate);
(i == 1) && self.range[animate ? 'animate' : 'css']({ width: (valPercent - lastValPercent) + '%' }, { queue: false, duration: o.animate });
} else {
(i == 0) && self.range.stop(1,1)[animate ? 'animate' : 'css']({ bottom: (valPercent) + '%' }, o.animate);
(i == 1) && self.range[animate ? 'animate' : 'css']({ height: (valPercent - lastValPercent) + '%' }, { queue: false, duration: o.animate });
}
}
lastValPercent = valPercent;
});
} else {
var value = this.value(),
valueMin = this._valueMin(),
valueMax = this._valueMax(),
valPercent = valueMax != valueMin
? (value - valueMin) / (valueMax - valueMin) * 100
: 0;
var _set = {}; _set[self.orientation == 'horizontal' ? 'left' : 'bottom'] = valPercent + '%';
this.handle.stop(1,1)[animate ? 'animate' : 'css'](_set, o.animate);
(oRange == "min") && (this.orientation == "horizontal") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ width: valPercent + '%' }, o.animate);
(oRange == "max") && (this.orientation == "horizontal") && this.range[animate ? 'animate' : 'css']({ width: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
(oRange == "min") && (this.orientation == "vertical") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ height: valPercent + '%' }, o.animate);
(oRange == "max") && (this.orientation == "vertical") && this.range[animate ? 'animate' : 'css']({ height: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
}
}
}));
$.extend($.ui.slider, {
getter: "value values",
version: "1.7.1",
eventPrefix: "slide",
defaults: {
animate: false,
delay: 0,
distance: 0,
max: 100,
min: 0,
orientation: 'horizontal',
range: false,
step: 1,
value: 0,
values: null
}
});
})(jQuery);
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