675 lines
24 KiB
JavaScript
675 lines
24 KiB
JavaScript
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/*!
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* jQuery UI Slider 1.8.23
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*
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* Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Slider
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.mouse.js
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* jquery.ui.widget.js
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*/
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(function ($, undefined) {
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// number of pages in a slider
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// (how many times can you page up/down to go through the whole range)
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var numPages = 5;
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$.widget("ui.slider", $.ui.mouse, {
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widgetEventPrefix: "slide",
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options: {
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animate: false,
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distance: 0,
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max: 100,
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min: 0,
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orientation: "horizontal",
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range: false,
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step: 1,
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value: 0,
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values: null
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},
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_create: function () {
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var self = this,
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o = this.options,
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existingHandles = this.element.find(".ui-slider-handle").addClass("ui-state-default ui-corner-all"),
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handle = "<a class='ui-slider-handle ui-state-default ui-corner-all' href='#'></a>",
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handleCount = (o.values && o.values.length) || 1,
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handles = [];
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this._keySliding = false;
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this._mouseSliding = false;
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this._animateOff = true;
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this._handleIndex = null;
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this._detectOrientation();
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this._mouseInit();
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this.element
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.addClass("ui-slider" +
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" ui-slider-" + this.orientation +
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" ui-widget" +
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" ui-widget-content" +
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" ui-corner-all" +
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(o.disabled ? " ui-slider-disabled ui-disabled" : ""));
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this.range = $([]);
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if (o.range) {
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if (o.range === true) {
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if (!o.values) {
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o.values = [this._valueMin(), this._valueMin()];
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}
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if (o.values.length && o.values.length !== 2) {
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o.values = [o.values[0], o.values[0]];
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}
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}
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this.range = $("<div></div>")
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.appendTo(this.element)
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.addClass("ui-slider-range" +
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// note: this isn't the most fittingly semantic framework class for this element,
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// but worked best visually with a variety of themes
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" ui-widget-header" +
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((o.range === "min" || o.range === "max") ? " ui-slider-range-" + o.range : ""));
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}
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for (var i = existingHandles.length; i < handleCount; i += 1) {
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handles.push(handle);
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}
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this.handles = existingHandles.add($(handles.join("")).appendTo(self.element));
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this.handle = this.handles.eq(0);
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this.handles.add(this.range).filter("a")
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.click(function (event) {
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event.preventDefault();
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})
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.hover(function () {
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if (!o.disabled) {
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$(this).addClass("ui-state-hover");
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}
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}, function () {
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$(this).removeClass("ui-state-hover");
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})
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.focus(function () {
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if (!o.disabled) {
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$(".ui-slider .ui-state-focus").removeClass("ui-state-focus");
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$(this).addClass("ui-state-focus");
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} else {
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$(this).blur();
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}
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})
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.blur(function () {
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$(this).removeClass("ui-state-focus");
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});
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this.handles.each(function (i) {
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$(this).data("index.ui-slider-handle", i);
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});
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this.handles
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.keydown(function (event) {
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var index = $(this).data("index.ui-slider-handle"),
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allowed,
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curVal,
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newVal,
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step;
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if (self.options.disabled) {
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return;
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}
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switch (event.keyCode) {
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case $.ui.keyCode.HOME:
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case $.ui.keyCode.END:
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case $.ui.keyCode.PAGE_UP:
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case $.ui.keyCode.PAGE_DOWN:
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case $.ui.keyCode.UP:
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case $.ui.keyCode.RIGHT:
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case $.ui.keyCode.DOWN:
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case $.ui.keyCode.LEFT:
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event.preventDefault();
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if (!self._keySliding) {
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self._keySliding = true;
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$(this).addClass("ui-state-active");
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allowed = self._start(event, index);
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if (allowed === false) {
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return;
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}
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}
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break;
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}
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step = self.options.step;
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if (self.options.values && self.options.values.length) {
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curVal = newVal = self.values(index);
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} else {
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curVal = newVal = self.value();
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}
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switch (event.keyCode) {
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case $.ui.keyCode.HOME:
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newVal = self._valueMin();
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break;
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case $.ui.keyCode.END:
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newVal = self._valueMax();
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break;
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case $.ui.keyCode.PAGE_UP:
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newVal = self._trimAlignValue(curVal + ((self._valueMax() - self._valueMin()) / numPages));
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break;
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case $.ui.keyCode.PAGE_DOWN:
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newVal = self._trimAlignValue(curVal - ((self._valueMax() - self._valueMin()) / numPages));
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break;
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case $.ui.keyCode.UP:
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case $.ui.keyCode.RIGHT:
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if (curVal === self._valueMax()) {
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return;
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}
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newVal = self._trimAlignValue(curVal + step);
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break;
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case $.ui.keyCode.DOWN:
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case $.ui.keyCode.LEFT:
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if (curVal === self._valueMin()) {
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return;
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}
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newVal = self._trimAlignValue(curVal - step);
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break;
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}
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self._slide(event, index, newVal);
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})
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.keyup(function (event) {
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var index = $(this).data("index.ui-slider-handle");
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if (self._keySliding) {
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self._keySliding = false;
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self._stop(event, index);
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self._change(event, index);
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$(this).removeClass("ui-state-active");
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}
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});
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this._refreshValue();
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this._animateOff = false;
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},
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destroy: function () {
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this.handles.remove();
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this.range.remove();
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this.element
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.removeClass("ui-slider" +
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" ui-slider-horizontal" +
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" ui-slider-vertical" +
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" ui-slider-disabled" +
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" ui-widget" +
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" ui-widget-content" +
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" ui-corner-all")
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.removeData("slider")
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.unbind(".slider");
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this._mouseDestroy();
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return this;
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},
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_mouseCapture: function (event) {
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var o = this.options,
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position,
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normValue,
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distance,
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closestHandle,
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self,
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index,
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allowed,
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offset,
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mouseOverHandle;
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if (o.disabled) {
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return false;
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}
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this.elementSize = {
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width: this.element.outerWidth(),
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height: this.element.outerHeight()
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};
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this.elementOffset = this.element.offset();
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position = {x: event.pageX, y: event.pageY};
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normValue = this._normValueFromMouse(position);
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distance = this._valueMax() - this._valueMin() + 1;
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self = this;
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this.handles.each(function (i) {
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var thisDistance = Math.abs(normValue - self.values(i));
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if (distance > thisDistance) {
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distance = thisDistance;
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closestHandle = $(this);
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index = i;
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}
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});
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// workaround for bug #3736 (if both handles of a range are at 0,
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// the first is always used as the one with least distance,
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// and moving it is obviously prevented by preventing negative ranges)
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if (o.range === true && this.values(1) === o.min) {
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index += 1;
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closestHandle = $(this.handles[index]);
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}
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allowed = this._start(event, index);
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if (allowed === false) {
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return false;
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}
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this._mouseSliding = true;
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self._handleIndex = index;
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closestHandle
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.addClass("ui-state-active")
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.focus();
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offset = closestHandle.offset();
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mouseOverHandle = !$(event.target).parents().andSelf().is(".ui-slider-handle");
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this._clickOffset = mouseOverHandle ? {left: 0, top: 0} : {
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left: event.pageX - offset.left - (closestHandle.width() / 2),
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top: event.pageY - offset.top -
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(closestHandle.height() / 2) -
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(parseInt(closestHandle.css("borderTopWidth"), 10) || 0) -
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(parseInt(closestHandle.css("borderBottomWidth"), 10) || 0) +
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(parseInt(closestHandle.css("marginTop"), 10) || 0)
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};
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if (!this.handles.hasClass("ui-state-hover")) {
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this._slide(event, index, normValue);
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}
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this._animateOff = true;
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return true;
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},
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_mouseStart: function (event) {
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return true;
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},
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_mouseDrag: function (event) {
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var position = {x: event.pageX, y: event.pageY},
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normValue = this._normValueFromMouse(position);
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this._slide(event, this._handleIndex, normValue);
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return false;
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},
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_mouseStop: function (event) {
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this.handles.removeClass("ui-state-active");
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this._mouseSliding = false;
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this._stop(event, this._handleIndex);
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this._change(event, this._handleIndex);
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this._handleIndex = null;
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this._clickOffset = null;
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this._animateOff = false;
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return false;
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},
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_detectOrientation: function () {
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this.orientation = (this.options.orientation === "vertical") ? "vertical" : "horizontal";
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},
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_normValueFromMouse: function (position) {
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var pixelTotal,
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pixelMouse,
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percentMouse,
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valueTotal,
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valueMouse;
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if (this.orientation === "horizontal") {
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pixelTotal = this.elementSize.width;
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pixelMouse = position.x - this.elementOffset.left - (this._clickOffset ? this._clickOffset.left : 0);
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} else {
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pixelTotal = this.elementSize.height;
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pixelMouse = position.y - this.elementOffset.top - (this._clickOffset ? this._clickOffset.top : 0);
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}
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percentMouse = (pixelMouse / pixelTotal);
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if (percentMouse > 1) {
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percentMouse = 1;
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}
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if (percentMouse < 0) {
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percentMouse = 0;
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}
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if (this.orientation === "vertical") {
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percentMouse = 1 - percentMouse;
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}
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valueTotal = this._valueMax() - this._valueMin();
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valueMouse = this._valueMin() + percentMouse * valueTotal;
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return this._trimAlignValue(valueMouse);
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},
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_start: function (event, index) {
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var uiHash = {
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handle: this.handles[index],
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value: this.value()
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};
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if (this.options.values && this.options.values.length) {
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uiHash.value = this.values(index);
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uiHash.values = this.values();
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}
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return this._trigger("start", event, uiHash);
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},
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_slide: function (event, index, newVal) {
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var otherVal,
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newValues,
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allowed;
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if (this.options.values && this.options.values.length) {
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otherVal = this.values(index ? 0 : 1);
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if ((this.options.values.length === 2 && this.options.range === true) &&
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((index === 0 && newVal > otherVal) || (index === 1 && newVal < otherVal))
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) {
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newVal = otherVal;
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}
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if (newVal !== this.values(index)) {
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newValues = this.values();
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newValues[index] = newVal;
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// A slide can be canceled by returning false from the slide callback
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allowed = this._trigger("slide", event, {
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handle: this.handles[index],
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value: newVal,
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values: newValues
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});
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otherVal = this.values(index ? 0 : 1);
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if (allowed !== false) {
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this.values(index, newVal, true);
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}
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}
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} else {
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|
|
if (newVal !== this.value()) {
|
||
|
|
// A slide can be canceled by returning false from the slide callback
|
||
|
|
allowed = this._trigger("slide", event, {
|
||
|
|
handle: this.handles[index],
|
||
|
|
value: newVal
|
||
|
|
});
|
||
|
|
if (allowed !== false) {
|
||
|
|
this.value(newVal);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
_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) {
|
||
|
|
if (!this._keySliding && !this._mouseSliding) {
|
||
|
|
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.options.value = this._trimAlignValue(newValue);
|
||
|
|
this._refreshValue();
|
||
|
|
this._change(null, 0);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
return this._value();
|
||
|
|
},
|
||
|
|
|
||
|
|
values: function (index, newValue) {
|
||
|
|
var vals,
|
||
|
|
newValues,
|
||
|
|
i;
|
||
|
|
|
||
|
|
if (arguments.length > 1) {
|
||
|
|
this.options.values[index] = this._trimAlignValue(newValue);
|
||
|
|
this._refreshValue();
|
||
|
|
this._change(null, index);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (arguments.length) {
|
||
|
|
if ($.isArray(arguments[0])) {
|
||
|
|
vals = this.options.values;
|
||
|
|
newValues = arguments[0];
|
||
|
|
for (i = 0; i < vals.length; i += 1) {
|
||
|
|
vals[i] = this._trimAlignValue(newValues[i]);
|
||
|
|
this._change(null, i);
|
||
|
|
}
|
||
|
|
this._refreshValue();
|
||
|
|
} else {
|
||
|
|
if (this.options.values && this.options.values.length) {
|
||
|
|
return this._values(index);
|
||
|
|
} else {
|
||
|
|
return this.value();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return this._values();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
_setOption: function (key, value) {
|
||
|
|
var i,
|
||
|
|
valsLength = 0;
|
||
|
|
|
||
|
|
if ($.isArray(this.options.values)) {
|
||
|
|
valsLength = this.options.values.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
$.Widget.prototype._setOption.apply(this, arguments);
|
||
|
|
|
||
|
|
switch (key) {
|
||
|
|
case "disabled":
|
||
|
|
if (value) {
|
||
|
|
this.handles.filter(".ui-state-focus").blur();
|
||
|
|
this.handles.removeClass("ui-state-hover");
|
||
|
|
this.handles.propAttr("disabled", true);
|
||
|
|
this.element.addClass("ui-disabled");
|
||
|
|
} else {
|
||
|
|
this.handles.propAttr("disabled", false);
|
||
|
|
this.element.removeClass("ui-disabled");
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "orientation":
|
||
|
|
this._detectOrientation();
|
||
|
|
this.element
|
||
|
|
.removeClass("ui-slider-horizontal ui-slider-vertical")
|
||
|
|
.addClass("ui-slider-" + this.orientation);
|
||
|
|
this._refreshValue();
|
||
|
|
break;
|
||
|
|
case "value":
|
||
|
|
this._animateOff = true;
|
||
|
|
this._refreshValue();
|
||
|
|
this._change(null, 0);
|
||
|
|
this._animateOff = false;
|
||
|
|
break;
|
||
|
|
case "values":
|
||
|
|
this._animateOff = true;
|
||
|
|
this._refreshValue();
|
||
|
|
for (i = 0; i < valsLength; i += 1) {
|
||
|
|
this._change(null, i);
|
||
|
|
}
|
||
|
|
this._animateOff = false;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
//internal value getter
|
||
|
|
// _value() returns value trimmed by min and max, aligned by step
|
||
|
|
_value: function () {
|
||
|
|
var val = this.options.value;
|
||
|
|
val = this._trimAlignValue(val);
|
||
|
|
|
||
|
|
return val;
|
||
|
|
},
|
||
|
|
|
||
|
|
//internal values getter
|
||
|
|
// _values() returns array of values trimmed by min and max, aligned by step
|
||
|
|
// _values( index ) returns single value trimmed by min and max, aligned by step
|
||
|
|
_values: function (index) {
|
||
|
|
var val,
|
||
|
|
vals,
|
||
|
|
i;
|
||
|
|
|
||
|
|
if (arguments.length) {
|
||
|
|
val = this.options.values[index];
|
||
|
|
val = this._trimAlignValue(val);
|
||
|
|
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
// .slice() creates a copy of the array
|
||
|
|
// this copy gets trimmed by min and max and then returned
|
||
|
|
vals = this.options.values.slice();
|
||
|
|
for (i = 0; i < vals.length; i += 1) {
|
||
|
|
vals[i] = this._trimAlignValue(vals[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return vals;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// returns the step-aligned value that val is closest to, between (inclusive) min and max
|
||
|
|
_trimAlignValue: function (val) {
|
||
|
|
if (val <= this._valueMin()) {
|
||
|
|
return this._valueMin();
|
||
|
|
}
|
||
|
|
if (val >= this._valueMax()) {
|
||
|
|
return this._valueMax();
|
||
|
|
}
|
||
|
|
var step = (this.options.step > 0) ? this.options.step : 1,
|
||
|
|
valModStep = (val - this._valueMin()) % step,
|
||
|
|
alignValue = val - valModStep;
|
||
|
|
|
||
|
|
if (Math.abs(valModStep) * 2 >= step) {
|
||
|
|
alignValue += (valModStep > 0) ? step : (-step);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Since JavaScript has problems with large floats, round
|
||
|
|
// the final value to 5 digits after the decimal point (see #4124)
|
||
|
|
return parseFloat(alignValue.toFixed(5));
|
||
|
|
},
|
||
|
|
|
||
|
|
_valueMin: function () {
|
||
|
|
return this.options.min;
|
||
|
|
},
|
||
|
|
|
||
|
|
_valueMax: function () {
|
||
|
|
return this.options.max;
|
||
|
|
},
|
||
|
|
|
||
|
|
_refreshValue: function () {
|
||
|
|
var oRange = this.options.range,
|
||
|
|
o = this.options,
|
||
|
|
self = this,
|
||
|
|
animate = (!this._animateOff) ? o.animate : false,
|
||
|
|
valPercent,
|
||
|
|
_set = {},
|
||
|
|
lastValPercent,
|
||
|
|
value,
|
||
|
|
valueMin,
|
||
|
|
valueMax;
|
||
|
|
|
||
|
|
if (this.options.values && this.options.values.length) {
|
||
|
|
this.handles.each(function (i, j) {
|
||
|
|
valPercent = (self.values(i) - self._valueMin()) / (self._valueMax() - self._valueMin()) * 100;
|
||
|
|
_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") {
|
||
|
|
if (i === 0) {
|
||
|
|
self.range.stop(1, 1)[animate ? "animate" : "css"]({left: valPercent + "%"}, o.animate);
|
||
|
|
}
|
||
|
|
if (i === 1) {
|
||
|
|
self.range[animate ? "animate" : "css"]({width: (valPercent - lastValPercent) + "%"}, {
|
||
|
|
queue: false,
|
||
|
|
duration: o.animate
|
||
|
|
});
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (i === 0) {
|
||
|
|
self.range.stop(1, 1)[animate ? "animate" : "css"]({bottom: (valPercent) + "%"}, o.animate);
|
||
|
|
}
|
||
|
|
if (i === 1) {
|
||
|
|
self.range[animate ? "animate" : "css"]({height: (valPercent - lastValPercent) + "%"}, {
|
||
|
|
queue: false,
|
||
|
|
duration: o.animate
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
lastValPercent = valPercent;
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
value = this.value();
|
||
|
|
valueMin = this._valueMin();
|
||
|
|
valueMax = this._valueMax();
|
||
|
|
valPercent = (valueMax !== valueMin) ?
|
||
|
|
(value - valueMin) / (valueMax - valueMin) * 100 :
|
||
|
|
0;
|
||
|
|
_set[self.orientation === "horizontal" ? "left" : "bottom"] = valPercent + "%";
|
||
|
|
this.handle.stop(1, 1)[animate ? "animate" : "css"](_set, o.animate);
|
||
|
|
|
||
|
|
if (oRange === "min" && this.orientation === "horizontal") {
|
||
|
|
this.range.stop(1, 1)[animate ? "animate" : "css"]({width: valPercent + "%"}, o.animate);
|
||
|
|
}
|
||
|
|
if (oRange === "max" && this.orientation === "horizontal") {
|
||
|
|
this.range[animate ? "animate" : "css"]({width: (100 - valPercent) + "%"}, {
|
||
|
|
queue: false,
|
||
|
|
duration: o.animate
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (oRange === "min" && this.orientation === "vertical") {
|
||
|
|
this.range.stop(1, 1)[animate ? "animate" : "css"]({height: valPercent + "%"}, o.animate);
|
||
|
|
}
|
||
|
|
if (oRange === "max" && this.orientation === "vertical") {
|
||
|
|
this.range[animate ? "animate" : "css"]({height: (100 - valPercent) + "%"}, {
|
||
|
|
queue: false,
|
||
|
|
duration: o.animate
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
$.extend($.ui.slider, {
|
||
|
|
version: "1.8.23"
|
||
|
|
});
|
||
|
|
|
||
|
|
}(jQuery));
|