[ceph.git] / ceph / src / pybind / mgr / dashboard / static / AdminLTE-2.3.7 / plugins / knob / jquery.knob.js

/*!jQuery Knob*/
/**
 * Downward compatible, touchable dial
 *
 * Version: 1.2.11
 * Requires: jQuery v1.7+
 *
 * Copyright (c) 2012 Anthony Terrien
 * Under MIT License (http://www.opensource.org/licenses/mit-license.php)
 *
 * Thanks to vor, eskimoblood, spiffistan, FabrizioC
 */
(function (factory) {
    if (typeof exports === 'object') {
        // CommonJS
        module.exports = factory(require('jquery'));
    } else if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define(['jquery'], factory);
    } else {
        // Browser globals
        factory(jQuery);
    }
}(function ($) {

    /**
     * Kontrol library
     */
    "use strict";

    /**
     * Definition of globals and core
     */
    var k = {}, // kontrol
        max = Math.max,
        min = Math.min;

    k.c = {};
    k.c.d = $(document);
    k.c.t = function (e) {
        return e.originalEvent.touches.length - 1;
    };

    /**
     * Kontrol Object
     *
     * Definition of an abstract UI control
     *
     * Each concrete component must call this one.
     * <code>
     * k.o.call(this);
     * </code>
     */
    k.o = function () {
        var s = this;

        this.o = null; // array of options
        this.$ = null; // jQuery wrapped element
        this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
        this.g = null; // deprecated 2D graphics context for 'pre-rendering'
        this.v = null; // value ; mixed array or integer
        this.cv = null; // change value ; not commited value
        this.x = 0; // canvas x position
        this.y = 0; // canvas y position
        this.w = 0; // canvas width
        this.h = 0; // canvas height
        this.$c = null; // jQuery canvas element
        this.c = null; // rendered canvas context
        this.t = 0; // touches index
        this.isInit = false;
        this.fgColor = null; // main color
        this.pColor = null; // previous color
        this.dH = null; // draw hook
        this.cH = null; // change hook
        this.eH = null; // cancel hook
        this.rH = null; // release hook
        this.scale = 1; // scale factor
        this.relative = false;
        this.relativeWidth = false;
        this.relativeHeight = false;
        this.$div = null; // component div

        this.run = function () {
            var cf = function (e, conf) {
                var k;
                for (k in conf) {
                    s.o[k] = conf[k];
                }
                s._carve().init();
                s._configure()
                 ._draw();
            };

            if (this.$.data('kontroled')) return;
            this.$.data('kontroled', true);

            this.extend();
            this.o = $.extend({
                    // Config
                    min: this.$.data('min') !== undefined ? this.$.data('min') : 0,
                    max: this.$.data('max') !== undefined ? this.$.data('max') : 100,
                    stopper: true,
                    readOnly: this.$.data('readonly') || (this.$.attr('readonly') === 'readonly'),

                    // UI
                    cursor: this.$.data('cursor') === true && 30
                            || this.$.data('cursor') || 0,
                    thickness: this.$.data('thickness')
                               && Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
                               || 0.35,
                    lineCap: this.$.data('linecap') || 'butt',
                    width: this.$.data('width') || 200,
                    height: this.$.data('height') || 200,
                    displayInput: this.$.data('displayinput') == null || this.$.data('displayinput'),
                    displayPrevious: this.$.data('displayprevious'),
                    fgColor: this.$.data('fgcolor') || '#87CEEB',
                    inputColor: this.$.data('inputcolor'),
                    font: this.$.data('font') || 'Arial',
                    fontWeight: this.$.data('font-weight') || 'bold',
                    inline: false,
                    step: this.$.data('step') || 1,
                    rotation: this.$.data('rotation'),

                    // Hooks
                    draw: null, // function () {}
                    change: null, // function (value) {}
                    cancel: null, // function () {}
                    release: null, // function (value) {}

                    // Output formatting, allows to add unit: %, ms ...
                    format: function(v) {
                        return v;
                    },
                    parse: function (v) {
                        return parseFloat(v);
                    }
                }, this.o
            );

            // finalize options
            this.o.flip = this.o.rotation === 'anticlockwise' || this.o.rotation === 'acw';
            if (!this.o.inputColor) {
                this.o.inputColor = this.o.fgColor;
            }

            // routing value
            if (this.$.is('fieldset')) {

                // fieldset = array of integer
                this.v = {};
                this.i = this.$.find('input');
                this.i.each(function(k) {
                    var $this = $(this);
                    s.i[k] = $this;
                    s.v[k] = s.o.parse($this.val());

                    $this.bind(
                        'change blur',
                        function () {
                            var val = {};
                            val[k] = $this.val();
                            s.val(s._validate(val));
                        }
                    );
                });
                this.$.find('legend').remove();
            } else {

                // input = integer
                this.i = this.$;
                this.v = this.o.parse(this.$.val());
                this.v === '' && (this.v = this.o.min);
                this.$.bind(
                    'change blur',
                    function () {
                        s.val(s._validate(s.o.parse(s.$.val())));
                    }
                );

            }

            !this.o.displayInput && this.$.hide();

            // adds needed DOM elements (canvas, div)
            this.$c = $(document.createElement('canvas')).attr({
                width: this.o.width,
                height: this.o.height
            });

            // wraps all elements in a div
            // add to DOM before Canvas init is triggered
            this.$div = $('<div style="'
                + (this.o.inline ? 'display:inline;' : '')
                + 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
                + '"></div>');

            this.$.wrap(this.$div).before(this.$c);
            this.$div = this.$.parent();

            if (typeof G_vmlCanvasManager !== 'undefined') {
                G_vmlCanvasManager.initElement(this.$c[0]);
            }

            this.c = this.$c[0].getContext ? this.$c[0].getContext('2d') : null;

            if (!this.c) {
                throw {
                    name:        "CanvasNotSupportedException",
                    message:     "Canvas not supported. Please use excanvas on IE8.0.",
                    toString:    function(){return this.name + ": " + this.message}
                }
            }

            // hdpi support
            this.scale = (window.devicePixelRatio || 1) / (
                            this.c.webkitBackingStorePixelRatio ||
                            this.c.mozBackingStorePixelRatio ||
                            this.c.msBackingStorePixelRatio ||
                            this.c.oBackingStorePixelRatio ||
                            this.c.backingStorePixelRatio || 1
                         );

            // detects relative width / height
            this.relativeWidth =  this.o.width % 1 !== 0
                                  && this.o.width.indexOf('%');
            this.relativeHeight = this.o.height % 1 !== 0
                                  && this.o.height.indexOf('%');
            this.relative = this.relativeWidth || this.relativeHeight;

            // computes size and carves the component
            this._carve();

            // prepares props for transaction
            if (this.v instanceof Object) {
                this.cv = {};
                this.copy(this.v, this.cv);
            } else {
                this.cv = this.v;
            }

            // binds configure event
            this.$
                .bind("configure", cf)
                .parent()
                .bind("configure", cf);

            // finalize init
            this._listen()
                ._configure()
                ._xy()
                .init();

            this.isInit = true;

            this.$.val(this.o.format(this.v));
            this._draw();

            return this;
        };

        this._carve = function() {
            if (this.relative) {
                var w = this.relativeWidth ?
                        this.$div.parent().width() *
                        parseInt(this.o.width) / 100
                        : this.$div.parent().width(),
                    h = this.relativeHeight ?
                        this.$div.parent().height() *
                        parseInt(this.o.height) / 100
                        : this.$div.parent().height();

                // apply relative
                this.w = this.h = Math.min(w, h);
            } else {
                this.w = this.o.width;
                this.h = this.o.height;
            }

            // finalize div
            this.$div.css({
                'width': this.w + 'px',
                'height': this.h + 'px'
            });

            // finalize canvas with computed width
            this.$c.attr({
                width: this.w,
                height: this.h
            });

            // scaling
            if (this.scale !== 1) {
                this.$c[0].width = this.$c[0].width * this.scale;
                this.$c[0].height = this.$c[0].height * this.scale;
                this.$c.width(this.w);
                this.$c.height(this.h);
            }

            return this;
        }

        this._draw = function () {

            // canvas pre-rendering
            var d = true;

            s.g = s.c;

            s.clear();

            s.dH && (d = s.dH());

            d !== false && s.draw();
        };

        this._touch = function (e) {
            var touchMove = function (e) {
                var v = s.xy2val(
                            e.originalEvent.touches[s.t].pageX,
                            e.originalEvent.touches[s.t].pageY
                        );

                if (v == s.cv) return;

                if (s.cH && s.cH(v) === false) return;

                s.change(s._validate(v));
                s._draw();
            };

            // get touches index
            this.t = k.c.t(e);

            // First touch
            touchMove(e);

            // Touch events listeners
            k.c.d
                .bind("touchmove.k", touchMove)
                .bind(
                    "touchend.k",
                    function () {
                        k.c.d.unbind('touchmove.k touchend.k');
                        s.val(s.cv);
                    }
                );

            return this;
        };

        this._mouse = function (e) {
            var mouseMove = function (e) {
                var v = s.xy2val(e.pageX, e.pageY);

                if (v == s.cv) return;

                if (s.cH && (s.cH(v) === false)) return;

                s.change(s._validate(v));
                s._draw();
            };

            // First click
            mouseMove(e);

            // Mouse events listeners
            k.c.d
                .bind("mousemove.k", mouseMove)
                .bind(
                    // Escape key cancel current change
                    "keyup.k",
                    function (e) {
                        if (e.keyCode === 27) {
                            k.c.d.unbind("mouseup.k mousemove.k keyup.k");

                            if (s.eH && s.eH() === false)
                                return;

                            s.cancel();
                        }
                    }
                )
                .bind(
                    "mouseup.k",
                    function (e) {
                        k.c.d.unbind('mousemove.k mouseup.k keyup.k');
                        s.val(s.cv);
                    }
                );

            return this;
        };

        this._xy = function () {
            var o = this.$c.offset();
            this.x = o.left;
            this.y = o.top;

            return this;
        };

        this._listen = function () {
            if (!this.o.readOnly) {
                this.$c
                    .bind(
                        "mousedown",
                        function (e) {
                            e.preventDefault();
                            s._xy()._mouse(e);
                        }
                    )
                    .bind(
                        "touchstart",
                        function (e) {
                            e.preventDefault();
                            s._xy()._touch(e);
                        }
                    );

                this.listen();
            } else {
                this.$.attr('readonly', 'readonly');
            }

            if (this.relative) {
                $(window).resize(function() {
                    s._carve().init();
                    s._draw();
                });
            }

            return this;
        };

        this._configure = function () {

            // Hooks
            if (this.o.draw) this.dH = this.o.draw;
            if (this.o.change) this.cH = this.o.change;
            if (this.o.cancel) this.eH = this.o.cancel;
            if (this.o.release) this.rH = this.o.release;

            if (this.o.displayPrevious) {
                this.pColor = this.h2rgba(this.o.fgColor, "0.4");
                this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
            } else {
                this.fgColor = this.o.fgColor;
            }

            return this;
        };

        this._clear = function () {
            this.$c[0].width = this.$c[0].width;
        };

        this._validate = function (v) {
            var val = (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step;
            return Math.round(val * 100) / 100;
        };

        // Abstract methods
        this.listen = function () {}; // on start, one time
        this.extend = function () {}; // each time configure triggered
        this.init = function () {}; // each time configure triggered
        this.change = function (v) {}; // on change
        this.val = function (v) {}; // on release
        this.xy2val = function (x, y) {}; //
        this.draw = function () {}; // on change / on release
        this.clear = function () { this._clear(); };

        // Utils
        this.h2rgba = function (h, a) {
            var rgb;
            h = h.substring(1,7)
            rgb = [
                parseInt(h.substring(0,2), 16),
                parseInt(h.substring(2,4), 16),
                parseInt(h.substring(4,6), 16)
            ];

            return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
        };

        this.copy = function (f, t) {
            for (var i in f) {
                t[i] = f[i];
            }
        };
    };


    /**
     * k.Dial
     */
    k.Dial = function () {
        k.o.call(this);

        this.startAngle = null;
        this.xy = null;
        this.radius = null;
        this.lineWidth = null;
        this.cursorExt = null;
        this.w2 = null;
        this.PI2 = 2*Math.PI;

        this.extend = function () {
            this.o = $.extend({
                bgColor: this.$.data('bgcolor') || '#EEEEEE',
                angleOffset: this.$.data('angleoffset') || 0,
                angleArc: this.$.data('anglearc') || 360,
                inline: true
            }, this.o);
        };

        this.val = function (v, triggerRelease) {
            if (null != v) {

                // reverse format
                v = this.o.parse(v);

                if (triggerRelease !== false
                    && v != this.v
                    && this.rH
                    && this.rH(v) === false) { return; }

                this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
                this.v = this.cv;
                this.$.val(this.o.format(this.v));
                this._draw();
            } else {
                return this.v;
            }
        };

        this.xy2val = function (x, y) {
            var a, ret;

            a = Math.atan2(
                        x - (this.x + this.w2),
                        - (y - this.y - this.w2)
                    ) - this.angleOffset;

            if (this.o.flip) {
                a = this.angleArc - a - this.PI2;
            }

            if (this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {

                // if isset angleArc option, set to min if .5 under min
                a = 0;
            } else if (a < 0) {
                a += this.PI2;
            }

            ret = (a * (this.o.max - this.o.min) / this.angleArc) + this.o.min;

            this.o.stopper && (ret = max(min(ret, this.o.max), this.o.min));

            return ret;
        };

        this.listen = function () {

            // bind MouseWheel
            var s = this, mwTimerStop,
                mwTimerRelease,
                mw = function (e) {
                    e.preventDefault();

                    var ori = e.originalEvent,
                        deltaX = ori.detail || ori.wheelDeltaX,
                        deltaY = ori.detail || ori.wheelDeltaY,
                        v = s._validate(s.o.parse(s.$.val()))
                            + (
                                deltaX > 0 || deltaY > 0
                                ? s.o.step
                                : deltaX < 0 || deltaY < 0 ? -s.o.step : 0
                              );

                    v = max(min(v, s.o.max), s.o.min);

                    s.val(v, false);

                    if (s.rH) {
                        // Handle mousewheel stop
                        clearTimeout(mwTimerStop);
                        mwTimerStop = setTimeout(function () {
                            s.rH(v);
                            mwTimerStop = null;
                        }, 100);

                        // Handle mousewheel releases
                        if (!mwTimerRelease) {
                            mwTimerRelease = setTimeout(function () {
                                if (mwTimerStop)
                                    s.rH(v);
                                mwTimerRelease = null;
                            }, 200);
                        }
                    }
                },
                kval,
                to,
                m = 1,
                kv = {
                    37: -s.o.step,
                    38: s.o.step,
                    39: s.o.step,
                    40: -s.o.step
                };

            this.$
                .bind(
                    "keydown",
                    function (e) {
                        var kc = e.keyCode;

                        // numpad support
                        if (kc >= 96 && kc <= 105) {
                            kc = e.keyCode = kc - 48;
                        }

                        kval = parseInt(String.fromCharCode(kc));

                        if (isNaN(kval)) {
                            (kc !== 13)                     // enter
                            && kc !== 8                     // bs
                            && kc !== 9                     // tab
                            && kc !== 189                   // -
                            && (kc !== 190
                                || s.$.val().match(/\./))   // . allowed once
                            && e.preventDefault();

                            // arrows
                            if ($.inArray(kc,[37,38,39,40]) > -1) {
                                e.preventDefault();

                                var v = s.o.parse(s.$.val()) + kv[kc] * m;
                                s.o.stopper && (v = max(min(v, s.o.max), s.o.min));

                                s.change(s._validate(v));
                                s._draw();

                                // long time keydown speed-up
                                to = window.setTimeout(function () {
                                    m *= 2;
                                }, 30);
                            }
                        }
                    }
                )
                .bind(
                    "keyup",
                    function (e) {
                        if (isNaN(kval)) {
                            if (to) {
                                window.clearTimeout(to);
                                to = null;
                                m = 1;
                                s.val(s.$.val());
                            }
                        } else {
                            // kval postcond
                            (s.$.val() > s.o.max && s.$.val(s.o.max))
                            || (s.$.val() < s.o.min && s.$.val(s.o.min));
                        }
                    }
                );

            this.$c.bind("mousewheel DOMMouseScroll", mw);
            this.$.bind("mousewheel DOMMouseScroll", mw)
        };

        this.init = function () {
            if (this.v < this.o.min
                || this.v > this.o.max) { this.v = this.o.min; }

            this.$.val(this.v);
            this.w2 = this.w / 2;
            this.cursorExt = this.o.cursor / 100;
            this.xy = this.w2 * this.scale;
            this.lineWidth = this.xy * this.o.thickness;
            this.lineCap = this.o.lineCap;
            this.radius = this.xy - this.lineWidth / 2;

            this.o.angleOffset
            && (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);

            this.o.angleArc
            && (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);

            // deg to rad
            this.angleOffset = this.o.angleOffset * Math.PI / 180;
            this.angleArc = this.o.angleArc * Math.PI / 180;

            // compute start and end angles
            this.startAngle = 1.5 * Math.PI + this.angleOffset;
            this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;

            var s = max(
                String(Math.abs(this.o.max)).length,
                String(Math.abs(this.o.min)).length,
                2
            ) + 2;

            this.o.displayInput
                && this.i.css({
                        'width' : ((this.w / 2 + 4) >> 0) + 'px',
                        'height' : ((this.w / 3) >> 0) + 'px',
                        'position' : 'absolute',
                        'vertical-align' : 'middle',
                        'margin-top' : ((this.w / 3) >> 0) + 'px',
                        'margin-left' : '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
                        'border' : 0,
                        'background' : 'none',
                        'font' : this.o.fontWeight + ' ' + ((this.w / s) >> 0) + 'px ' + this.o.font,
                        'text-align' : 'center',
                        'color' : this.o.inputColor || this.o.fgColor,
                        'padding' : '0px',
                        '-webkit-appearance': 'none'
                        }) || this.i.css({
                            'width': '0px',
                            'visibility': 'hidden'
                        });
        };

        this.change = function (v) {
            this.cv = v;
            this.$.val(this.o.format(v));
        };

        this.angle = function (v) {
            return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
        };

        this.arc = function (v) {
          var sa, ea;
          v = this.angle(v);
          if (this.o.flip) {
              sa = this.endAngle + 0.00001;
              ea = sa - v - 0.00001;
          } else {
              sa = this.startAngle - 0.00001;
              ea = sa + v + 0.00001;
          }
          this.o.cursor
              && (sa = ea - this.cursorExt)
              && (ea = ea + this.cursorExt);

          return {
              s: sa,
              e: ea,
              d: this.o.flip && !this.o.cursor
          };
        };

        this.draw = function () {
            var c = this.g,                 // context
                a = this.arc(this.cv),      // Arc
                pa,                         // Previous arc
                r = 1;

            c.lineWidth = this.lineWidth;
            c.lineCap = this.lineCap;

            if (this.o.bgColor !== "none") {
                c.beginPath();
                    c.strokeStyle = this.o.bgColor;
                    c.arc(this.xy, this.xy, this.radius, this.endAngle - 0.00001, this.startAngle + 0.00001, true);
                c.stroke();
            }

            if (this.o.displayPrevious) {
                pa = this.arc(this.v);
                c.beginPath();
                c.strokeStyle = this.pColor;
                c.arc(this.xy, this.xy, this.radius, pa.s, pa.e, pa.d);
                c.stroke();
                r = this.cv == this.v;
            }

            c.beginPath();
            c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
            c.arc(this.xy, this.xy, this.radius, a.s, a.e, a.d);
            c.stroke();
        };

        this.cancel = function () {
            this.val(this.v);
        };
    };

    $.fn.dial = $.fn.knob = function (o) {
        return this.each(
            function () {
                var d = new k.Dial();
                d.o = o;
                d.$ = $(this);
                d.run();
            }
        ).parent();
    };

}));
Commit	Line	Data
31f18b77 FG	1	/!jQuery Knob/
	2	/**
	3	* Downward compatible, touchable dial
	4	*
	5	* Version: 1.2.11
	6	* Requires: jQuery v1.7+
	7	*
	8	* Copyright (c) 2012 Anthony Terrien
	9	* Under MIT License (http://www.opensource.org/licenses/mit-license.php)
	10	*
	11	* Thanks to vor, eskimoblood, spiffistan, FabrizioC
	12	*/
	13	(function (factory) {
	14	if (typeof exports === 'object') {
	15	// CommonJS
	16	module.exports = factory(require('jquery'));
	17	} else if (typeof define === 'function' && define.amd) {
	18	// AMD. Register as an anonymous module.
	19	define(['jquery'], factory);
	20	} else {
	21	// Browser globals
	22	factory(jQuery);
	23	}
	24	}(function ($) {
	25
	26	/**
	27	* Kontrol library
	28	*/
	29	"use strict";
	30
	31	/**
	32	* Definition of globals and core
	33	*/
	34	var k = {}, // kontrol
	35	max = Math.max,
	36	min = Math.min;
	37
	38	k.c = {};
	39	k.c.d = $(document);
	40	k.c.t = function (e) {
	41	return e.originalEvent.touches.length - 1;
	42	};
	43
	44	/**
	45	* Kontrol Object
	46	*
	47	* Definition of an abstract UI control
	48	*
	49	* Each concrete component must call this one.
	50	* <code>
	51	* k.o.call(this);
	52	* </code>
	53	*/
	54	k.o = function () {
	55	var s = this;
	56
	57	this.o = null; // array of options
	58	this.$ = null; // jQuery wrapped element
	59	this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
	60	this.g = null; // deprecated 2D graphics context for 'pre-rendering'
	61	this.v = null; // value ; mixed array or integer
	62	this.cv = null; // change value ; not commited value
	63	this.x = 0; // canvas x position
	64	this.y = 0; // canvas y position
65	this.w = 0; // canvas width
66	this.h = 0; // canvas height
67	this.$c = null; // jQuery canvas element
68	this.c = null; // rendered canvas context
69	this.t = 0; // touches index
70	this.isInit = false;
71	this.fgColor = null; // main color
72	this.pColor = null; // previous color
73	this.dH = null; // draw hook
74	this.cH = null; // change hook
75	this.eH = null; // cancel hook
76	this.rH = null; // release hook
77	this.scale = 1; // scale factor
78	this.relative = false;
79	this.relativeWidth = false;
80	this.relativeHeight = false;
81	this.$div = null; // component div
82
83	this.run = function () {
84	var cf = function (e, conf) {
85	var k;
86	for (k in conf) {
87	s.o[k] = conf[k];
88	}
89	s._carve().init();
90	s._configure()
91	._draw();
92	};
93
94	if (this.$.data('kontroled')) return;
95	this.$.data('kontroled', true);
96
97	this.extend();
98	this.o = $.extend({
99	// Config
100	min: this.$.data('min') !== undefined ? this.$.data('min') : 0,
101	max: this.$.data('max') !== undefined ? this.$.data('max') : 100,
102	stopper: true,
103	readOnly: this.$.data('readonly') \|\| (this.$.attr('readonly') === 'readonly'),
104
105	// UI
106	cursor: this.$.data('cursor') === true && 30
107	\|\| this.$.data('cursor') \|\| 0,
108	thickness: this.$.data('thickness')
109	&& Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
110	\|\| 0.35,
111	lineCap: this.$.data('linecap') \|\| 'butt',
112	width: this.$.data('width') \|\| 200,
113	height: this.$.data('height') \|\| 200,
114	displayInput: this.$.data('displayinput') == null \|\| this.$.data('displayinput'),
115	displayPrevious: this.$.data('displayprevious'),
116	fgColor: this.$.data('fgcolor') \|\| '#87CEEB',
117	inputColor: this.$.data('inputcolor'),
118	font: this.$.data('font') \|\| 'Arial',
119	fontWeight: this.$.data('font-weight') \|\| 'bold',
120	inline: false,
121	step: this.$.data('step') \|\| 1,
122	rotation: this.$.data('rotation'),
123
124	// Hooks
125	draw: null, // function () {}
126	change: null, // function (value) {}
127	cancel: null, // function () {}
128	release: null, // function (value) {}
129
130	// Output formatting, allows to add unit: %, ms ...
131	format: function(v) {
132	return v;
133	},
134	parse: function (v) {
135	return parseFloat(v);
136	}
137	}, this.o
138	);
139
140	// finalize options
141	this.o.flip = this.o.rotation === 'anticlockwise' \|\| this.o.rotation === 'acw';
142	if (!this.o.inputColor) {
143	this.o.inputColor = this.o.fgColor;
144	}
145
146	// routing value
147	if (this.$.is('fieldset')) {
148
149	// fieldset = array of integer
150	this.v = {};
151	this.i = this.$.find('input');
152	this.i.each(function(k) {
153	var $this = $(this);
154	s.i[k] = $this;
155	s.v[k] = s.o.parse($this.val());
156
157	$this.bind(
158	'change blur',
159	function () {
160	var val = {};
161	val[k] = $this.val();
162	s.val(s._validate(val));
163	}
164	);
165	});
166	this.$.find('legend').remove();
167	} else {
168
169	// input = integer
170	this.i = this.$;
171	this.v = this.o.parse(this.$.val());
172	this.v === '' && (this.v = this.o.min);
173	this.$.bind(
174	'change blur',
175	function () {
176	s.val(s._validate(s.o.parse(s.$.val())));
177	}
178	);
179
180	}
181
182	!this.o.displayInput && this.$.hide();
183
184	// adds needed DOM elements (canvas, div)
185	this.$c = $(document.createElement('canvas')).attr({
186	width: this.o.width,
187	height: this.o.height
188	});
189
190	// wraps all elements in a div
191	// add to DOM before Canvas init is triggered
192	this.$div = $('<div style="'
193	+ (this.o.inline ? 'display:inline;' : '')
194	+ 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
195	+ '"></div>');
196
197	this.$.wrap(this.$div).before(this.$c);
198	this.$div = this.$.parent();
199
200	if (typeof G_vmlCanvasManager !== 'undefined') {
201	G_vmlCanvasManager.initElement(this.$c[0]);
202	}
203
204	this.c = this.$c[0].getContext ? this.$c[0].getContext('2d') : null;
205
206	if (!this.c) {
207	throw {
208	name: "CanvasNotSupportedException",
209	message: "Canvas not supported. Please use excanvas on IE8.0.",
210	toString: function(){return this.name + ": " + this.message}
211	}
212	}
213
214	// hdpi support
215	this.scale = (window.devicePixelRatio \|\| 1) / (
216	this.c.webkitBackingStorePixelRatio \|\|
217	this.c.mozBackingStorePixelRatio \|\|
218	this.c.msBackingStorePixelRatio \|\|
219	this.c.oBackingStorePixelRatio \|\|
220	this.c.backingStorePixelRatio \|\| 1
221	);
222
223	// detects relative width / height
224	this.relativeWidth = this.o.width % 1 !== 0
225	&& this.o.width.indexOf('%');
226	this.relativeHeight = this.o.height % 1 !== 0
227	&& this.o.height.indexOf('%');
228	this.relative = this.relativeWidth \|\| this.relativeHeight;
229
230	// computes size and carves the component
231	this._carve();
232
233	// prepares props for transaction
234	if (this.v instanceof Object) {
235	this.cv = {};
236	this.copy(this.v, this.cv);
237	} else {
238	this.cv = this.v;
239	}
240
241	// binds configure event
242	this.$
243	.bind("configure", cf)
244	.parent()
245	.bind("configure", cf);
246
247	// finalize init
248	this._listen()
249	._configure()
250	._xy()
251	.init();
252
253	this.isInit = true;
254
255	this.$.val(this.o.format(this.v));
256	this._draw();
257
258	return this;
259	};
260
261	this._carve = function() {
262	if (this.relative) {
263	var w = this.relativeWidth ?
264	this.$div.parent().width() *
265	parseInt(this.o.width) / 100
266	: this.$div.parent().width(),
267	h = this.relativeHeight ?
268	this.$div.parent().height() *
269	parseInt(this.o.height) / 100
270	: this.$div.parent().height();
271
272	// apply relative
273	this.w = this.h = Math.min(w, h);
274	} else {
275	this.w = this.o.width;
276	this.h = this.o.height;
277	}
278
279	// finalize div
280	this.$div.css({
281	'width': this.w + 'px',
282	'height': this.h + 'px'
283	});
284
285	// finalize canvas with computed width
286	this.$c.attr({
287	width: this.w,
288	height: this.h
289	});
290
291	// scaling
292	if (this.scale !== 1) {
293	this.$c[0].width = this.$c[0].width * this.scale;
294	this.$c[0].height = this.$c[0].height * this.scale;
295	this.$c.width(this.w);
296	this.$c.height(this.h);
297	}
298
299	return this;
300	}
301
302	this._draw = function () {
303
304	// canvas pre-rendering
305	var d = true;
306
307	s.g = s.c;
308
309	s.clear();
310
311	s.dH && (d = s.dH());
312
313	d !== false && s.draw();
314	};
315
316	this._touch = function (e) {
317	var touchMove = function (e) {
318	var v = s.xy2val(
319	e.originalEvent.touches[s.t].pageX,
320	e.originalEvent.touches[s.t].pageY
321	);
322
323	if (v == s.cv) return;
324
325	if (s.cH && s.cH(v) === false) return;
326
327	s.change(s._validate(v));
328	s._draw();
329	};
330
331	// get touches index
332	this.t = k.c.t(e);
333
334	// First touch
335	touchMove(e);
336
337	// Touch events listeners
338	k.c.d
339	.bind("touchmove.k", touchMove)
340	.bind(
341	"touchend.k",
342	function () {
343	k.c.d.unbind('touchmove.k touchend.k');
344	s.val(s.cv);
345	}
346	);
347
348	return this;
349	};
350
351	this._mouse = function (e) {
352	var mouseMove = function (e) {
353	var v = s.xy2val(e.pageX, e.pageY);
354
355	if (v == s.cv) return;
356
357	if (s.cH && (s.cH(v) === false)) return;
358
359	s.change(s._validate(v));
360	s._draw();
361	};
362
363	// First click
364	mouseMove(e);
365
366	// Mouse events listeners
367	k.c.d
368	.bind("mousemove.k", mouseMove)
369	.bind(
370	// Escape key cancel current change
371	"keyup.k",
372	function (e) {
373	if (e.keyCode === 27) {
374	k.c.d.unbind("mouseup.k mousemove.k keyup.k");
375
376	if (s.eH && s.eH() === false)
377	return;
378
379	s.cancel();
380	}
381	}
382	)
383	.bind(
384	"mouseup.k",
385	function (e) {
386	k.c.d.unbind('mousemove.k mouseup.k keyup.k');
387	s.val(s.cv);
388	}
389	);
390
391	return this;
392	};
393
394	this._xy = function () {
395	var o = this.$c.offset();
396	this.x = o.left;
397	this.y = o.top;
398
399	return this;
400	};
401
402	this._listen = function () {
403	if (!this.o.readOnly) {
404	this.$c
405	.bind(
406	"mousedown",
407	function (e) {
408	e.preventDefault();
409	s._xy()._mouse(e);
410	}
411	)
412	.bind(
413	"touchstart",
414	function (e) {
415	e.preventDefault();
416	s._xy()._touch(e);
417	}
418	);
419
420	this.listen();
421	} else {
422	this.$.attr('readonly', 'readonly');
423	}
424
425	if (this.relative) {
426	$(window).resize(function() {
427	s._carve().init();
428	s._draw();
429	});
430	}
431
432	return this;
433	};
434
435	this._configure = function () {
436
437	// Hooks
438	if (this.o.draw) this.dH = this.o.draw;
439	if (this.o.change) this.cH = this.o.change;
440	if (this.o.cancel) this.eH = this.o.cancel;
441	if (this.o.release) this.rH = this.o.release;
442
443	if (this.o.displayPrevious) {
444	this.pColor = this.h2rgba(this.o.fgColor, "0.4");
445	this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
446	} else {
447	this.fgColor = this.o.fgColor;
448	}
449
450	return this;
451	};
452
453	this._clear = function () {
454	this.$c[0].width = this.$c[0].width;
455	};
456
457	this._validate = function (v) {
458	var val = (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step;
459	return Math.round(val * 100) / 100;
460	};
461
462	// Abstract methods
463	this.listen = function () {}; // on start, one time
464	this.extend = function () {}; // each time configure triggered
465	this.init = function () {}; // each time configure triggered
466	this.change = function (v) {}; // on change
467	this.val = function (v) {}; // on release
468	this.xy2val = function (x, y) {}; //
469	this.draw = function () {}; // on change / on release
470	this.clear = function () { this._clear(); };
471
472	// Utils
473	this.h2rgba = function (h, a) {
474	var rgb;
475	h = h.substring(1,7)
476	rgb = [
477	parseInt(h.substring(0,2), 16),
478	parseInt(h.substring(2,4), 16),
479	parseInt(h.substring(4,6), 16)
480	];
481
482	return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
483	};
484
485	this.copy = function (f, t) {
486	for (var i in f) {
487	t[i] = f[i];
488	}
489	};
490	};
491
492
493	/**
494	* k.Dial
495	*/
496	k.Dial = function () {
497	k.o.call(this);
498
499	this.startAngle = null;
500	this.xy = null;
501	this.radius = null;
502	this.lineWidth = null;
503	this.cursorExt = null;
504	this.w2 = null;
505	this.PI2 = 2*Math.PI;
506
507	this.extend = function () {
508	this.o = $.extend({
509	bgColor: this.$.data('bgcolor') \|\| '#EEEEEE',
510	angleOffset: this.$.data('angleoffset') \|\| 0,
511	angleArc: this.$.data('anglearc') \|\| 360,
512	inline: true
513	}, this.o);
514	};
515
516	this.val = function (v, triggerRelease) {
517	if (null != v) {
518
519	// reverse format
520	v = this.o.parse(v);
521
522	if (triggerRelease !== false
523	&& v != this.v
524	&& this.rH
525	&& this.rH(v) === false) { return; }
526
527	this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
528	this.v = this.cv;
529	this.$.val(this.o.format(this.v));
530	this._draw();
531	} else {
532	return this.v;
533	}
534	};
535
536	this.xy2val = function (x, y) {
537	var a, ret;
538
539	a = Math.atan2(
540	x - (this.x + this.w2),
541	- (y - this.y - this.w2)
542	) - this.angleOffset;
543
544	if (this.o.flip) {
545	a = this.angleArc - a - this.PI2;
546	}
547
548	if (this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
549
550	// if isset angleArc option, set to min if .5 under min
551	a = 0;
552	} else if (a < 0) {
553	a += this.PI2;
554	}
555
556	ret = (a * (this.o.max - this.o.min) / this.angleArc) + this.o.min;
557
558	this.o.stopper && (ret = max(min(ret, this.o.max), this.o.min));
559
560	return ret;
561	};
562
563	this.listen = function () {
564
565	// bind MouseWheel
566	var s = this, mwTimerStop,
567	mwTimerRelease,
568	mw = function (e) {
569	e.preventDefault();
570
571	var ori = e.originalEvent,
572	deltaX = ori.detail \|\| ori.wheelDeltaX,
573	deltaY = ori.detail \|\| ori.wheelDeltaY,
574	v = s._validate(s.o.parse(s.$.val()))
575	+ (
576	deltaX > 0 \|\| deltaY > 0
577	? s.o.step
578	: deltaX < 0 \|\| deltaY < 0 ? -s.o.step : 0
579	);
580
581	v = max(min(v, s.o.max), s.o.min);
582
583	s.val(v, false);
584
585	if (s.rH) {
586	// Handle mousewheel stop
587	clearTimeout(mwTimerStop);
588	mwTimerStop = setTimeout(function () {
589	s.rH(v);
590	mwTimerStop = null;
591	}, 100);
592
593	// Handle mousewheel releases
594	if (!mwTimerRelease) {
595	mwTimerRelease = setTimeout(function () {
596	if (mwTimerStop)
597	s.rH(v);
598	mwTimerRelease = null;
599	}, 200);
600	}
601	}
602	},
603	kval,
604	to,
605	m = 1,
606	kv = {
607	37: -s.o.step,
608	38: s.o.step,
609	39: s.o.step,
610	40: -s.o.step
611	};
612
613	this.$
614	.bind(
615	"keydown",
616	function (e) {
617	var kc = e.keyCode;
618
619	// numpad support
620	if (kc >= 96 && kc <= 105) {
621	kc = e.keyCode = kc - 48;
622	}
623
624	kval = parseInt(String.fromCharCode(kc));
625
626	if (isNaN(kval)) {
627	(kc !== 13) // enter
628	&& kc !== 8 // bs
629	&& kc !== 9 // tab
630	&& kc !== 189 // -
631	&& (kc !== 190
632	\|\| s.$.val().match(/\./)) // . allowed once
633	&& e.preventDefault();
634
635	// arrows
636	if ($.inArray(kc,[37,38,39,40]) > -1) {
637	e.preventDefault();
638
639	var v = s.o.parse(s.$.val()) + kv[kc] * m;
640	s.o.stopper && (v = max(min(v, s.o.max), s.o.min));
641
642	s.change(s._validate(v));
643	s._draw();
644
645	// long time keydown speed-up
646	to = window.setTimeout(function () {
647	m *= 2;
648	}, 30);
649	}
650	}
651	}
652	)
653	.bind(
654	"keyup",
655	function (e) {
656	if (isNaN(kval)) {
657	if (to) {
658	window.clearTimeout(to);
659	to = null;
660	m = 1;
661	s.val(s.$.val());
662	}
663	} else {
664	// kval postcond
665	(s.$.val() > s.o.max && s.$.val(s.o.max))
666	\|\| (s.$.val() < s.o.min && s.$.val(s.o.min));
667	}
668	}
669	);
670
671	this.$c.bind("mousewheel DOMMouseScroll", mw);
672	this.$.bind("mousewheel DOMMouseScroll", mw)
673	};
674
675	this.init = function () {
676	if (this.v < this.o.min
677	\|\| this.v > this.o.max) { this.v = this.o.min; }
678
679	this.$.val(this.v);
680	this.w2 = this.w / 2;
681	this.cursorExt = this.o.cursor / 100;
682	this.xy = this.w2 * this.scale;
683	this.lineWidth = this.xy * this.o.thickness;
684	this.lineCap = this.o.lineCap;
685	this.radius = this.xy - this.lineWidth / 2;
686
687	this.o.angleOffset
688	&& (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
689
690	this.o.angleArc
691	&& (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);
692
693	// deg to rad
694	this.angleOffset = this.o.angleOffset * Math.PI / 180;
695	this.angleArc = this.o.angleArc * Math.PI / 180;
696
697	// compute start and end angles
698	this.startAngle = 1.5 * Math.PI + this.angleOffset;
699	this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;
700
701	var s = max(
702	String(Math.abs(this.o.max)).length,
703	String(Math.abs(this.o.min)).length,
704	2
705	) + 2;
706
707	this.o.displayInput
708	&& this.i.css({
709	'width' : ((this.w / 2 + 4) >> 0) + 'px',
710	'height' : ((this.w / 3) >> 0) + 'px',
711	'position' : 'absolute',
712	'vertical-align' : 'middle',
713	'margin-top' : ((this.w / 3) >> 0) + 'px',
714	'margin-left' : '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
715	'border' : 0,
716	'background' : 'none',
717	'font' : this.o.fontWeight + ' ' + ((this.w / s) >> 0) + 'px ' + this.o.font,
718	'text-align' : 'center',
719	'color' : this.o.inputColor \|\| this.o.fgColor,
720	'padding' : '0px',
721	'-webkit-appearance': 'none'
722	}) \|\| this.i.css({
723	'width': '0px',
724	'visibility': 'hidden'
725	});
726	};
727
728	this.change = function (v) {
729	this.cv = v;
730	this.$.val(this.o.format(v));
731	};
732
733	this.angle = function (v) {
734	return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
735	};
736
737	this.arc = function (v) {
738	var sa, ea;
739	v = this.angle(v);
740	if (this.o.flip) {
741	sa = this.endAngle + 0.00001;
742	ea = sa - v - 0.00001;
743	} else {
744	sa = this.startAngle - 0.00001;
745	ea = sa + v + 0.00001;
746	}
747	this.o.cursor
748	&& (sa = ea - this.cursorExt)
749	&& (ea = ea + this.cursorExt);
750
751	return {
752	s: sa,
753	e: ea,
754	d: this.o.flip && !this.o.cursor
755	};
756	};
757
758	this.draw = function () {
759	var c = this.g, // context
760	a = this.arc(this.cv), // Arc
761	pa, // Previous arc
762	r = 1;
763
764	c.lineWidth = this.lineWidth;
765	c.lineCap = this.lineCap;
766
767	if (this.o.bgColor !== "none") {
768	c.beginPath();
769	c.strokeStyle = this.o.bgColor;
770	c.arc(this.xy, this.xy, this.radius, this.endAngle - 0.00001, this.startAngle + 0.00001, true);
771	c.stroke();
772	}
773
774	if (this.o.displayPrevious) {
775	pa = this.arc(this.v);
776	c.beginPath();
777	c.strokeStyle = this.pColor;
778	c.arc(this.xy, this.xy, this.radius, pa.s, pa.e, pa.d);
779	c.stroke();
780	r = this.cv == this.v;
781	}
782
783	c.beginPath();
784	c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
785	c.arc(this.xy, this.xy, this.radius, a.s, a.e, a.d);
786	c.stroke();
787	};
788
789	this.cancel = function () {
790	this.val(this.v);
791	};
792	};
793
794	$.fn.dial = $.fn.knob = function (o) {
795	return this.each(
796	function () {
797	var d = new k.Dial();
798	d.o = o;
799	d.$ = $(this);
800	d.run();
801	}
802	).parent();
803	};
804
805	}));