/**
|
* jQuery EasyUI 1.5.2
|
*
|
* Copyright (c) 2009-2017 www.jeasyui.com. All rights reserved.
|
*
|
* Licensed under the freeware license: http://www.jeasyui.com/license_freeware.php
|
* To use it on other terms please contact us: info@jeasyui.com
|
*
|
*/
|
/**
|
* slider - jQuery EasyUI
|
*
|
* Dependencies:
|
* draggable
|
*
|
*/
|
(function($){
|
function init(target){
|
var slider = $('<div class="slider">' +
|
'<div class="slider-inner">' +
|
'<a href="javascript:;" class="slider-handle"></a>' +
|
'<span class="slider-tip"></span>' +
|
'</div>' +
|
'<div class="slider-rule"></div>' +
|
'<div class="slider-rulelabel"></div>' +
|
'<div style="clear:both"></div>' +
|
'<input type="hidden" class="slider-value">' +
|
'</div>').insertAfter(target);
|
var t = $(target);
|
t.addClass('slider-f').hide();
|
var name = t.attr('name');
|
if (name){
|
slider.find('input.slider-value').attr('name', name);
|
t.removeAttr('name').attr('sliderName', name);
|
}
|
slider.bind('_resize', function(e,force){
|
if ($(this).hasClass('easyui-fluid') || force){
|
setSize(target);
|
}
|
return false;
|
});
|
return slider;
|
}
|
|
/**
|
* set the slider size, for vertical slider, the height property is required
|
*/
|
function setSize(target, param){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
|
if (param){
|
if (param.width) opts.width = param.width;
|
if (param.height) opts.height = param.height;
|
}
|
slider._size(opts);
|
if (opts.mode == 'h'){
|
slider.css('height', '');
|
slider.children('div').css('height', '');
|
} else {
|
slider.css('width', '');
|
slider.children('div').css('width', '');
|
slider.children('div.slider-rule,div.slider-rulelabel,div.slider-inner')._outerHeight(slider._outerHeight());
|
}
|
initValue(target);
|
}
|
|
/**
|
* show slider rule if needed
|
*/
|
function showRule(target){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
|
var aa = opts.mode == 'h' ? opts.rule : opts.rule.slice(0).reverse();
|
if (opts.reversed){
|
aa = aa.slice(0).reverse();
|
}
|
_build(aa);
|
|
function _build(aa){
|
var rule = slider.find('div.slider-rule');
|
var label = slider.find('div.slider-rulelabel');
|
rule.empty();
|
label.empty();
|
for(var i=0; i<aa.length; i++){
|
var distance = i*100/(aa.length-1)+'%';
|
var span = $('<span></span>').appendTo(rule);
|
span.css((opts.mode=='h'?'left':'top'), distance);
|
|
// show the labels
|
if (aa[i] != '|'){
|
span = $('<span></span>').appendTo(label);
|
span.html(aa[i]);
|
if (opts.mode == 'h'){
|
span.css({
|
left: distance,
|
marginLeft: -Math.round(span.outerWidth()/2)
|
});
|
} else {
|
span.css({
|
top: distance,
|
marginTop: -Math.round(span.outerHeight()/2)
|
});
|
}
|
}
|
}
|
}
|
}
|
|
/**
|
* build the slider and set some properties
|
*/
|
function buildSlider(target){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
|
slider.removeClass('slider-h slider-v slider-disabled');
|
slider.addClass(opts.mode == 'h' ? 'slider-h' : 'slider-v');
|
slider.addClass(opts.disabled ? 'slider-disabled' : '');
|
|
var inner = slider.find('.slider-inner');
|
inner.html(
|
'<a href="javascript:;" class="slider-handle"></a>' +
|
'<span class="slider-tip"></span>'
|
);
|
if (opts.range){
|
inner.append(
|
'<a href="javascript:;" class="slider-handle"></a>' +
|
'<span class="slider-tip"></span>'
|
);
|
}
|
|
slider.find('a.slider-handle').draggable({
|
axis:opts.mode,
|
cursor:'pointer',
|
disabled: opts.disabled,
|
onDrag:function(e){
|
var left = e.data.left;
|
var width = slider.width();
|
if (opts.mode!='h'){
|
left = e.data.top;
|
width = slider.height();
|
}
|
if (left < 0 || left > width) {
|
return false;
|
} else {
|
setPos(left, this);
|
return false;
|
}
|
},
|
onStartDrag:function(){
|
state.isDragging = true;
|
opts.onSlideStart.call(target, opts.value);
|
},
|
onStopDrag:function(e){
|
setPos(opts.mode=='h'?e.data.left:e.data.top, this);
|
opts.onSlideEnd.call(target, opts.value);
|
opts.onComplete.call(target, opts.value);
|
state.isDragging = false;
|
}
|
});
|
slider.find('div.slider-inner').unbind('.slider').bind('mousedown.slider', function(e){
|
if (state.isDragging || opts.disabled){return}
|
var pos = $(this).offset();
|
setPos(opts.mode=='h'?(e.pageX-pos.left):(e.pageY-pos.top));
|
opts.onComplete.call(target, opts.value);
|
});
|
|
function setPos(pos, handle){
|
var value = pos2value(target, pos);
|
var s = Math.abs(value % opts.step);
|
if (s < opts.step/2){
|
value -= s;
|
} else {
|
value = value - s + opts.step;
|
}
|
if (opts.range){
|
var v1 = opts.value[0];
|
var v2 = opts.value[1];
|
var m = parseFloat((v1+v2)/2);
|
if (handle){
|
var isLeft = $(handle).nextAll('.slider-handle').length > 0;
|
if (value <= v2 && isLeft){
|
v1 = value;
|
} else if (value >= v1 && (!isLeft)){
|
v2 = value;
|
}
|
} else {
|
if (value < v1){
|
v1 = value;
|
} else if (value > v2){
|
v2 = value;
|
} else {
|
value < m ? v1 = value : v2 = value;
|
}
|
}
|
$(target).slider('setValues', [v1,v2]);
|
} else {
|
$(target).slider('setValue', value);
|
}
|
}
|
}
|
|
/**
|
* set a specified value to slider
|
*/
|
function setValues(target, values){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
var oldValues = $.isArray(opts.value) ? opts.value : [opts.value];
|
var newValues = [];
|
|
if (!$.isArray(values)){
|
values = $.map(String(values).split(opts.separator), function(v){
|
return parseFloat(v);
|
});
|
}
|
|
slider.find('.slider-value').remove();
|
var name = $(target).attr('sliderName') || '';
|
for(var i=0; i<values.length; i++){
|
var value = values[i];
|
if (value < opts.min) value = opts.min;
|
if (value > opts.max) value = opts.max;
|
|
var input = $('<input type="hidden" class="slider-value">').appendTo(slider);
|
input.attr('name', name);
|
input.val(value);
|
newValues.push(value);
|
|
var handle = slider.find('.slider-handle:eq('+i+')');
|
var tip = handle.next();
|
var pos = value2pos(target, value);
|
if (opts.showTip){
|
tip.show();
|
tip.html(opts.tipFormatter.call(target, value));
|
} else {
|
tip.hide();
|
}
|
|
if (opts.mode == 'h'){
|
var style = 'left:'+pos+'px;';
|
handle.attr('style', style);
|
tip.attr('style', style + 'margin-left:' + (-Math.round(tip.outerWidth()/2)) + 'px');
|
} else {
|
var style = 'top:' + pos + 'px;';
|
handle.attr('style', style);
|
tip.attr('style', style + 'margin-left:' + (-Math.round(tip.outerWidth())) + 'px');
|
}
|
}
|
opts.value = opts.range ? newValues : newValues[0];
|
$(target).val(opts.range ? newValues.join(opts.separator) : newValues[0]);
|
|
if (oldValues.join(',') != newValues.join(',')){
|
opts.onChange.call(target, opts.value, (opts.range?oldValues:oldValues[0]));
|
}
|
}
|
|
function initValue(target){
|
var opts = $.data(target, 'slider').options;
|
var fn = opts.onChange;
|
opts.onChange = function(){};
|
setValues(target, opts.value);
|
opts.onChange = fn;
|
}
|
|
/**
|
* translate value to slider position
|
*/
|
function value2pos(target, value){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
var size = opts.mode == 'h' ? slider.width() : slider.height();
|
var pos = opts.converter.toPosition.call(target, value, size);
|
if (opts.mode == 'v'){
|
pos = slider.height() - pos;
|
}
|
if (opts.reversed){
|
pos = size - pos;
|
}
|
return pos.toFixed(0);
|
}
|
|
/**
|
* translate slider position to value
|
*/
|
function pos2value(target, pos){
|
var state = $.data(target, 'slider');
|
var opts = state.options;
|
var slider = state.slider;
|
var size = opts.mode == 'h' ? slider.width() : slider.height();
|
var pos = opts.mode=='h' ? (opts.reversed?(size-pos):pos) : (opts.reversed?pos:(size-pos));
|
var value = opts.converter.toValue.call(target, pos, size);
|
return value.toFixed(0);
|
}
|
|
$.fn.slider = function(options, param){
|
if (typeof options == 'string'){
|
return $.fn.slider.methods[options](this, param);
|
}
|
|
options = options || {};
|
return this.each(function(){
|
var state = $.data(this, 'slider');
|
if (state){
|
$.extend(state.options, options);
|
} else {
|
state = $.data(this, 'slider', {
|
options: $.extend({}, $.fn.slider.defaults, $.fn.slider.parseOptions(this), options),
|
slider: init(this)
|
});
|
$(this).removeAttr('disabled');
|
}
|
|
var opts = state.options;
|
opts.min = parseFloat(opts.min);
|
opts.max = parseFloat(opts.max);
|
if (opts.range){
|
if (!$.isArray(opts.value)){
|
opts.value = $.map(String(opts.value).split(opts.separator), function(v){
|
return parseFloat(v);
|
});
|
}
|
if (opts.value.length < 2){
|
opts.value.push(opts.max);
|
}
|
} else {
|
opts.value = parseFloat(opts.value);
|
}
|
opts.step = parseFloat(opts.step);
|
opts.originalValue = opts.value;
|
|
buildSlider(this);
|
showRule(this);
|
setSize(this);
|
});
|
};
|
|
$.fn.slider.methods = {
|
options: function(jq){
|
return $.data(jq[0], 'slider').options;
|
},
|
destroy: function(jq){
|
return jq.each(function(){
|
$.data(this, 'slider').slider.remove();
|
$(this).remove();
|
});
|
},
|
resize: function(jq, param){
|
return jq.each(function(){
|
setSize(this, param);
|
});
|
},
|
getValue: function(jq){
|
return jq.slider('options').value;
|
},
|
getValues: function(jq){
|
return jq.slider('options').value;
|
},
|
setValue: function(jq, value){
|
return jq.each(function(){
|
setValues(this, [value]);
|
});
|
},
|
setValues: function(jq, values){
|
return jq.each(function(){
|
setValues(this, values);
|
});
|
},
|
clear: function(jq){
|
return jq.each(function(){
|
var opts = $(this).slider('options');
|
setValues(this, opts.range?[opts.min,opts.max]:[opts.min]);
|
});
|
},
|
reset: function(jq){
|
return jq.each(function(){
|
var opts = $(this).slider('options');
|
$(this).slider(opts.range?'setValues':'setValue', opts.originalValue);
|
});
|
},
|
enable: function(jq){
|
return jq.each(function(){
|
$.data(this, 'slider').options.disabled = false;
|
buildSlider(this);
|
});
|
},
|
disable: function(jq){
|
return jq.each(function(){
|
$.data(this, 'slider').options.disabled = true;
|
buildSlider(this);
|
});
|
}
|
};
|
|
$.fn.slider.parseOptions = function(target){
|
var t = $(target);
|
return $.extend({}, $.parser.parseOptions(target, [
|
'width','height','mode',{reversed:'boolean',showTip:'boolean',range:'boolean',min:'number',max:'number',step:'number'}
|
]), {
|
value: (t.val() || undefined),
|
disabled: (t.attr('disabled') ? true : undefined),
|
rule: (t.attr('rule') ? eval(t.attr('rule')) : undefined)
|
});
|
};
|
|
$.fn.slider.defaults = {
|
width: 'auto',
|
height: 'auto',
|
mode: 'h', // 'h'(horizontal) or 'v'(vertical)
|
reversed: false,
|
showTip: false,
|
disabled: false,
|
range: false,
|
value: 0,
|
separator: ',',
|
min: 0,
|
max: 100,
|
step: 1,
|
rule: [], // [0,'|',100]
|
tipFormatter: function(value){return value},
|
converter:{
|
toPosition:function(value, size){
|
var opts = $(this).slider('options');
|
return (value-opts.min)/(opts.max-opts.min)*size;
|
},
|
toValue:function(pos, size){
|
var opts = $(this).slider('options');
|
return opts.min + (opts.max-opts.min)*(pos/size);
|
}
|
},
|
onChange: function(value, oldValue){},
|
onSlideStart: function(value){},
|
onSlideEnd: function(value){},
|
onComplete: function(value){}
|
};
|
})(jQuery);
|
