WebBuild/wwwroot/libs/jquery-ui-slider-pips/jquery-ui-slider-pips.js

/*! jQuery-ui-Slider-Pips - v1.11.4 - 2016-09-04
* Copyright (c) 2016 Simon Goellner <simey.me@gmail.com>; Licensed MIT */

(function ($) {

    "use strict";

    var extensionMethods = {





        // pips

        pips: function (settings) {

            var slider = this,
                i, j, p,
                collection = "",
                mousedownHandlers,
                min = slider._valueMin(),
                max = slider._valueMax(),
                pips = (max - min) / slider.options.step,
                $handles = slider.element.find(".ui-slider-handle"),
                $pips;

            var options = {

                first: "label",
                /* "label", "pip", false */

                last: "label",
                /* "label", "pip", false */

                rest: "pip",
                /* "label", "pip", false */

                labels: false,
                /* [array], { first: "string", rest: [array], last: "string" }, false */

                prefix: "",
                /* "", string */

                suffix: "",
                /* "", string */

                step: (pips > 100) ? Math.floor(pips * 0.05) : 1,
                /* number */

                formatLabel: function (value) {
                    return this.prefix + value + this.suffix;
                }
                /* function
                    must return a value to display in the pip labels */

            };

            if ($.type(settings) === "object" || $.type(settings) === "undefined") {

                $.extend(options, settings);
                slider.element.data("pips-options", options);

            } else {

                if (settings === "destroy") {

                    destroy();

                } else if (settings === "refresh") {

                    slider.element.slider("pips", slider.element.data("pips-options"));

                }

                return;

            }


            // we don't want the step ever to be a floating point or negative
            // (or 0 actually, so we'll set it to 1 in that case).
            slider.options.pipStep = Math.abs(Math.round(options.step)) || 1;

            // get rid of all pips that might already exist.
            slider.element
                .off(".selectPip")
                .addClass("ui-slider-pips")
                .find(".ui-slider-pip")
                .remove();

            // small object with functions for marking pips as selected.

            var selectPip = {

                single: function (value) {

                    this.resetClasses();

                    $pips
                        .filter(".ui-slider-pip-" + this.classLabel(value))
                        .addClass("ui-slider-pip-selected");

                    if (slider.options.range) {

                        $pips.each(function (k, v) {

                            var pipVal = $(v).children(".ui-slider-label").data("value");

                            if ((slider.options.range === "min" && pipVal < value) ||
                                (slider.options.range === "max" && pipVal > value)) {

                                $(v).addClass("ui-slider-pip-inrange");

                            }

                        });

                    }

                },

                range: function (values) {

                    this.resetClasses();

                    for (i = 0; i < values.length; i++) {

                        $pips
                            .filter(".ui-slider-pip-" + this.classLabel(values[i]))
                            .addClass("ui-slider-pip-selected-" + (i + 1));

                    }

                    if (slider.options.range) {

                        $pips.each(function (k, v) {

                            var pipVal = $(v).children(".ui-slider-label").data("value");

                            if (pipVal > values[0] && pipVal < values[1]) {

                                $(v).addClass("ui-slider-pip-inrange");

                            }

                        });

                    }

                },

                classLabel: function (value) {

                    return value.toString().replace(".", "-");

                },

                resetClasses: function () {

                    var regex = /(^|\s*)(ui-slider-pip-selected|ui-slider-pip-inrange)(-{1,2}\d+|\s|$)/gi;

                    $pips.removeClass(function (index, css) {
                        return (css.match(regex) || []).join(" ");
                    });

                }

            };

            function getClosestHandle(val) {

                var h, k,
                    sliderVals,
                    comparedVals,
                    closestVal,
                    tempHandles = [],
                    closestHandle = 0;

                if (slider.values() && slider.values().length) {

                    // get the current values of the slider handles
                    sliderVals = slider.values();

                    // find the offset value from the `val` for each
                    // handle, and store it in a new array
                    comparedVals = $.map(sliderVals, function (v) {
                        return Math.abs(v - val);
                    });

                    // figure out the closest handles to the value
                    closestVal = Math.min.apply(Math, comparedVals);

                    // if a comparedVal is the closestVal, then
                    // set the value accordingly, and set the closest handle.
                    for (h = 0; h < comparedVals.length; h++) {
                        if (comparedVals[h] === closestVal) {
                            tempHandles.push(h);
                        }
                    }

                    // set the closest handle to the first handle in array,
                    // just incase we have no _lastChangedValue to compare to.
                    closestHandle = tempHandles[0];

                    // now we want to find out if any of the closest handles were
                    // the last changed handle, if so we specify that handle to change
                    for (k = 0; k < tempHandles.length; k++) {
                        if (slider._lastChangedValue === tempHandles[k]) {
                            closestHandle = tempHandles[k];
                        }
                    }

                    if (slider.options.range && tempHandles.length === 2) {

                        if (val > sliderVals[1]) {

                            closestHandle = tempHandles[1];

                        } else if (val < sliderVals[0]) {

                            closestHandle = tempHandles[0];

                        }

                    }

                }

                return closestHandle;

            }

            function destroy() {

                slider.element
                    .off(".selectPip")
                    .on("mousedown.slider", slider.element.data("mousedown-original"))
                    .removeClass("ui-slider-pips")
                    .find(".ui-slider-pip")
                    .remove();

            }

            // when we click on a label, we want to make sure the
            // slider's handle actually goes to that label!
            // so we check all the handles and see which one is closest
            // to the label we clicked. If 2 handles are equidistant then
            // we move both of them. We also want to trigger focus on the
            // handle.

            // without this method the label is just treated like a part
            // of the slider and there's no accuracy in the selected value

            function labelClick(label, e) {

                if (slider.option("disabled")) {
                    return;
                }

                var val = $(label).data("value"),
                    indexToChange = getClosestHandle(val);

                if (slider.values() && slider.values().length) {

                    slider.options.values[indexToChange] = slider._trimAlignValue(val);

                } else {

                    slider.options.value = slider._trimAlignValue(val);

                }

                slider._refreshValue();
                slider._change(e, indexToChange);

            }

            // method for creating a pip. We loop this for creating all
            // the pips.

            function createPip(which) {

                var label,
                    percent,
                    number = which,
                    classes = "ui-slider-pip",
                    css = "",
                    value = slider.value(),
                    values = slider.values(),
                    labelValue,
                    classLabel,
                    labelIndex;

                if (which === "first") {

                    number = 0;

                } else if (which === "last") {

                    number = pips;

                }

                // labelValue is the actual value of the pip based on the min/step
                labelValue = min + (slider.options.step * number);

                // classLabel replaces any decimals with hyphens
                classLabel = labelValue.toString().replace(".", "-");

                // get the index needed for selecting labels out of the array
                labelIndex = (number + min) - min;

                // we need to set the human-readable label to either the
                // corresponding element in the array, or the appropriate
                // item in the object... or an empty string.

                if ($.type(options.labels) === "array") {

                    label = options.labels[labelIndex] || "";

                } else if ($.type(options.labels) === "object") {

                    if (which === "first") {

                        // set first label
                        label = options.labels.first || "";

                    } else if (which === "last") {

                        // set last label
                        label = options.labels.last || "";

                    } else if ($.type(options.labels.rest) === "array") {

                        // set other labels, but our index should start at -1
                        // because of the first pip.
                        label = options.labels.rest[labelIndex - 1] || "";

                    } else {

                        // urrggh, the options must be f**ked, just show nothing.
                        label = labelValue;

                    }

                } else {

                    label = labelValue;

                }




                if (which === "first") {

                    // first Pip on the Slider
                    percent = "0%";

                    classes += " ui-slider-pip-first";
                    classes += (options.first === "label") ? " ui-slider-pip-label" : "";
                    classes += (options.first === false) ? " ui-slider-pip-hide" : "";

                } else if (which === "last") {

                    // last Pip on the Slider
                    percent = "100%";

                    classes += " ui-slider-pip-last";
                    classes += (options.last === "label") ? " ui-slider-pip-label" : "";
                    classes += (options.last === false) ? " ui-slider-pip-hide" : "";

                } else {

                    // all other Pips
                    percent = ((100 / pips) * which).toFixed(4) + "%";

                    classes += (options.rest === "label") ? " ui-slider-pip-label" : "";
                    classes += (options.rest === false) ? " ui-slider-pip-hide" : "";

                }

                classes += " ui-slider-pip-" + classLabel;


                // add classes for the initial-selected values.
                if (values && values.length) {

                    for (i = 0; i < values.length; i++) {

                        if (labelValue === values[i]) {

                            classes += " ui-slider-pip-initial-" + (i + 1);
                            classes += " ui-slider-pip-selected-" + (i + 1);

                        }

                    }

                    if (slider.options.range) {

                        if (labelValue > values[0] &&
                            labelValue < values[1]) {

                            classes += " ui-slider-pip-inrange";

                        }

                    }

                } else {

                    if (labelValue === value) {

                        classes += " ui-slider-pip-initial";
                        classes += " ui-slider-pip-selected";

                    }

                    if (slider.options.range) {

                        if ((slider.options.range === "min" && labelValue < value) ||
                            (slider.options.range === "max" && labelValue > value)) {

                            classes += " ui-slider-pip-inrange";

                        }

                    }

                }



                css = (slider.options.orientation === "horizontal") ?
                    "left: " + percent :
                    "bottom: " + percent;


                // add this current pip to the collection
                return "<span class=\"" + classes + "\" style=\"" + css + "\">" +
                    "<span class=\"ui-slider-line\"></span>" +
                    "<span class=\"ui-slider-label\" data-value=\"" +
                    labelValue + "\">" + options.formatLabel(label) + "</span>" +
                    "</span>";

            }

            // create our first pip
            collection += createPip("first");

            // for every stop in the slider where we need a pip; create one.
            for (p = slider.options.pipStep; p < pips; p += slider.options.pipStep) {
                collection += createPip(p);
            }

            // create our last pip
            collection += createPip("last");

            // append the collection of pips.
            slider.element.append(collection);

            // store the pips for setting classes later.
            $pips = slider.element.find(".ui-slider-pip");



            // store the mousedown handlers for later, just in case we reset
            // the slider, the handler would be lost!

            if ($._data(slider.element.get(0), "events").mousedown &&
                $._data(slider.element.get(0), "events").mousedown.length) {

                mousedownHandlers = $._data(slider.element.get(0), "events").mousedown;

            } else {

                mousedownHandlers = slider.element.data("mousedown-handlers");

            }

            slider.element.data("mousedown-handlers", mousedownHandlers.slice());

            // loop through all the mousedown handlers on the slider,
            // and store the original namespaced (.slider) event handler so
            // we can trigger it later.
            for (j = 0; j < mousedownHandlers.length; j++) {
                if (mousedownHandlers[j].namespace === "slider") {
                    slider.element.data("mousedown-original", mousedownHandlers[j].handler);
                }
            }

            // unbind the mousedown.slider event, because it interferes with
            // the labelClick() method (stops smooth animation), and decide
            // if we want to trigger the original event based on which element
            // was clicked.
            slider.element
                .off("mousedown.slider")
                .on("mousedown.selectPip", function (e) {

                    var $target = $(e.target),
                        closest = getClosestHandle($target.data("value")),
                        $handle = $handles.eq(closest);

                    $handle.addClass("ui-state-active");

                    if ($target.is(".ui-slider-label")) {

                        labelClick($target, e);

                        slider.element
                            .one("mouseup.selectPip", function () {

                                $handle
                                    .removeClass("ui-state-active")
                                    .focus();

                            });

                    } else {

                        var originalMousedown = slider.element.data("mousedown-original");
                        originalMousedown(e);

                    }

                });




            slider.element.on("slide.selectPip slidechange.selectPip", function (e, ui) {

                var $slider = $(this),
                    value = $slider.slider("value"),
                    values = $slider.slider("values");

                if (ui) {

                    value = ui.value;
                    values = ui.values;

                }

                if (slider.values() && slider.values().length) {

                    selectPip.range(values);

                } else {

                    selectPip.single(value);

                }

            });




        },








        // floats

        float: function (settings) {

            var i,
                slider = this,
                min = slider._valueMin(),
                max = slider._valueMax(),
                value = slider._value(),
                values = slider._values(),
                tipValues = [],
                $handles = slider.element.find(".ui-slider-handle");

            var options = {

                handle: true,
                /* false */

                pips: false,
                /* true */

                labels: false,
                /* [array], { first: "string", rest: [array], last: "string" }, false */

                prefix: "",
                /* "", string */

                suffix: "",
                /* "", string */

                event: "slidechange slide",
                /* "slidechange", "slide", "slidechange slide" */

                formatLabel: function (value) {
                    return this.prefix + value + this.suffix;
                }
                /* function
                    must return a value to display in the floats */

            };

            if ($.type(settings) === "object" || $.type(settings) === "undefined") {

                $.extend(options, settings);
                slider.element.data("float-options", options);

            } else {

                if (settings === "destroy") {

                    destroy();

                } else if (settings === "refresh") {

                    slider.element.slider("float", slider.element.data("float-options"));

                }

                return;

            }




            if (value < min) {
                value = min;
            }

            if (value > max) {
                value = max;
            }

            if (values && values.length) {

                for (i = 0; i < values.length; i++) {

                    if (values[i] < min) {
                        values[i] = min;
                    }

                    if (values[i] > max) {
                        values[i] = max;
                    }

                }

            }

            // add a class for the CSS
            slider.element
                .addClass("ui-slider-float")
                .find(".ui-slider-tip, .ui-slider-tip-label")
                .remove();



            function destroy() {

                slider.element
                    .off(".sliderFloat")
                    .removeClass("ui-slider-float")
                    .find(".ui-slider-tip, .ui-slider-tip-label")
                    .remove();

            }


            function getPipLabels(values) {

                // when checking the array we need to divide
                // by the step option, so we store those values here.

                var vals = [],
                    steppedVals = $.map(values, function (v) {
                        return Math.ceil((v - min) / slider.options.step);
                    });

                // now we just get the values we need to return
                // by looping through the values array and assigning the
                // label if it exists.

                if ($.type(options.labels) === "array") {

                    for (i = 0; i < values.length; i++) {

                        vals[i] = options.labels[steppedVals[i]] || values[i];

                    }

                } else if ($.type(options.labels) === "object") {

                    for (i = 0; i < values.length; i++) {

                        if (values[i] === min) {

                            vals[i] = options.labels.first || min;

                        } else if (values[i] === max) {

                            vals[i] = options.labels.last || max;

                        } else if ($.type(options.labels.rest) === "array") {

                            vals[i] = options.labels.rest[steppedVals[i] - 1] || values[i];

                        } else {

                            vals[i] = values[i];

                        }

                    }

                } else {

                    for (i = 0; i < values.length; i++) {

                        vals[i] = values[i];

                    }

                }

                return vals;

            }

            // apply handle tip if settings allows.
            if (options.handle) {

                // we need to set the human-readable label to either the
                // corresponding element in the array, or the appropriate
                // item in the object... or an empty string.

                tipValues = (slider.values() && slider.values().length) ?
                    getPipLabels(values) :
                    getPipLabels([value]);

                for (i = 0; i < tipValues.length; i++) {

                    $handles
                        .eq(i)
                        .append($("<span class=\"ui-slider-tip\">" + options.formatLabel(tipValues[i]) + "</span>"));

                }

            }

            if (options.pips) {

                // if this slider also has pip-labels, we make those into tips, too.
                slider.element.find(".ui-slider-label").each(function (k, v) {

                    var $this = $(v),
                        val = [$this.data("value")],
                        label,
                        $tip;


                    label = options.formatLabel(getPipLabels(val)[0]);

                    // create a tip element
                    $tip =
                        $("<span class=\"ui-slider-tip-label\">" + label + "</span>")
                            .insertAfter($this);

                });

            }

            // check that the event option is actually valid against our
            // own list of the slider's events.
            if (options.event !== "slide" &&
                options.event !== "slidechange" &&
                options.event !== "slide slidechange" &&
                options.event !== "slidechange slide") {

                options.event = "slidechange slide";

            }

            // when slider changes, update handle tip label.
            slider.element
                .off(".sliderFloat")
                .on(options.event + ".sliderFloat", function (e, ui) {

                    var uiValue = ($.type(ui.value) === "array") ? ui.value : [ui.value],
                        val = options.formatLabel(getPipLabels(uiValue)[0]);

                    $(ui.handle)
                        .find(".ui-slider-tip")
                        .html(val);

                });

        }

    };

    $.extend(true, $.ui.slider.prototype, extensionMethods);

})(jQuery);