/*
colpick Color Picker
Copyright 2013 Jose Vargas. Licensed under GPL license. Based on Stefan Petre's Color Picker www.eyecon.ro, dual licensed under the MIT and GPL licenses

For usage and examples: colpick.com/plugin
 */

(function ($) {
    var colpick = function () {
        var
            tpl = '<div class="colpick"><div class="colpick_color"><div class="colpick_color_overlay1"><div class="colpick_color_overlay2"><div class="colpick_selector_outer"><div class="colpick_selector_inner"></div></div></div></div></div><div class="colpick_hue"><div class="colpick_hue_arrs"><div class="colpick_hue_larr"></div><div class="colpick_hue_rarr"></div></div></div><div class="colpick_new_color"></div><div class="colpick_current_color"></div><div class="colpick_hex_field"><div class="colpick_field_letter">#</div><input type="text" maxlength="6" size="6" /></div><div class="colpick_rgb_r colpick_field"><div class="colpick_field_letter">R</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_rgb_g colpick_field"><div class="colpick_field_letter">G</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_rgb_b colpick_field"><div class="colpick_field_letter">B</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_h colpick_field"><div class="colpick_field_letter">H</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_s colpick_field"><div class="colpick_field_letter">S</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_b colpick_field"><div class="colpick_field_letter">B</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_submit"></div></div>',
            defaults = {
                showEvent: 'click',
                onShow: function () {},
                onBeforeShow: function(){},
                onHide: function () {},
                onChange: function () {},
                onSubmit: function () {},
                colorScheme: 'light',
                color: '3289c7',
                livePreview: true,
                flat: false,
                layout: 'full',
                submit: 1,
                submitText: 'OK',
                height: 156
            },
            //Fill the inputs of the plugin
            fillRGBFields = function  (hsb, cal) {
                var rgb = hsbToRgb(hsb);
                $(cal).data('colpick').fields
                    .eq(1).val(rgb.r).end()
                    .eq(2).val(rgb.g).end()
                    .eq(3).val(rgb.b).end();
            },
            fillHSBFields = function  (hsb, cal) {
                $(cal).data('colpick').fields
                    .eq(4).val(Math.round(hsb.h)).end()
                    .eq(5).val(Math.round(hsb.s)).end()
                    .eq(6).val(Math.round(hsb.b)).end();
            },
            fillHexFields = function (hsb, cal) {
                $(cal).data('colpick').fields.eq(0).val(hsbToHex(hsb));
            },
            //Set the round selector position
            setSelector = function (hsb, cal) {
                $(cal).data('colpick').selector.css('backgroundColor', '#' + hsbToHex({h: hsb.h, s: 100, b: 100}));
                $(cal).data('colpick').selectorIndic.css({
                    left: parseInt($(cal).data('colpick').height * hsb.s/100, 10),
                    top: parseInt($(cal).data('colpick').height * (100-hsb.b)/100, 10)
                });
            },
            //Set the hue selector position
            setHue = function (hsb, cal) {
                $(cal).data('colpick').hue.css('top', parseInt($(cal).data('colpick').height - $(cal).data('colpick').height * hsb.h/360, 10));
            },
            //Set current and new colors
            setCurrentColor = function (hsb, cal) {
                $(cal).data('colpick').currentColor.css('backgroundColor', '#' + hsbToHex(hsb));
            },
            setNewColor = function (hsb, cal) {
                $(cal).data('colpick').newColor.css('backgroundColor', '#' + hsbToHex(hsb));
            },
            //Called when the new color is changed
            change = function (ev) {
                var cal = $(this).parent().parent(), col;
                if (this.parentNode.className.indexOf('_hex') > 0) {
                    cal.data('colpick').color = col = hexToHsb(fixHex(this.value));
                    fillRGBFields(col, cal.get(0));
                    fillHSBFields(col, cal.get(0));
                } else if (this.parentNode.className.indexOf('_hsb') > 0) {
                    cal.data('colpick').color = col = fixHSB({
                        h: parseInt(cal.data('colpick').fields.eq(4).val(), 10),
                        s: parseInt(cal.data('colpick').fields.eq(5).val(), 10),
                        b: parseInt(cal.data('colpick').fields.eq(6).val(), 10)
                    });
                    fillRGBFields(col, cal.get(0));
                    fillHexFields(col, cal.get(0));
                } else {
                    cal.data('colpick').color = col = rgbToHsb(fixRGB({
                        r: parseInt(cal.data('colpick').fields.eq(1).val(), 10),
                        g: parseInt(cal.data('colpick').fields.eq(2).val(), 10),
                        b: parseInt(cal.data('colpick').fields.eq(3).val(), 10)
                    }));
                    fillHexFields(col, cal.get(0));
                    fillHSBFields(col, cal.get(0));
                }
                setSelector(col, cal.get(0));
                setHue(col, cal.get(0));
                setNewColor(col, cal.get(0));
                cal.data('colpick').onChange.apply(cal.parent(), [col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el, 0]);
            },
            //Change style on blur and on focus of inputs
            blur = function (ev) {
                $(this).parent().removeClass('colpick_focus');
            },
            focus = function () {
                $(this).parent().parent().data('colpick').fields.parent().removeClass('colpick_focus');
                $(this).parent().addClass('colpick_focus');
            },
            //Increment/decrement arrows functions
            downIncrement = function (ev) {
                ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
                var field = $(this).parent().find('input').focus();
                var current = {
                    el: $(this).parent().addClass('colpick_slider'),
                    max: this.parentNode.className.indexOf('_hsb_h') > 0 ? 360 : (this.parentNode.className.indexOf('_hsb') > 0 ? 100 : 255),
                    y: ev.pageY,
                    field: field,
                    val: parseInt(field.val(), 10),
                    preview: $(this).parent().parent().data('colpick').livePreview
                };
                $(document).mouseup(current, upIncrement);
                $(document).mousemove(current, moveIncrement);
            },
            moveIncrement = function (ev) {
                ev.data.field.val(Math.max(0, Math.min(ev.data.max, parseInt(ev.data.val - ev.pageY + ev.data.y, 10))));
                if (ev.data.preview) {
                    change.apply(ev.data.field.get(0), [true]);
                }
                return false;
            },
            upIncrement = function (ev) {
                change.apply(ev.data.field.get(0), [true]);
                ev.data.el.removeClass('colpick_slider').find('input').focus();
                $(document).off('mouseup', upIncrement);
                $(document).off('mousemove', moveIncrement);
                return false;
            },
            //Hue slider functions
            downHue = function (ev) {
                ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
                var current = {
                    cal: $(this).parent(),
                    y: $(this).offset().top
                };
                $(document).on('mouseup touchend',current,upHue);
                $(document).on('mousemove touchmove',current,moveHue);

                var pageY = ((ev.type == 'touchstart') ? ev.originalEvent.changedTouches[0].pageY : ev.pageY );
                change.apply(
                    current.cal.data('colpick')
                    .fields.eq(4).val(parseInt(360*(current.cal.data('colpick').height - (pageY - current.y))/current.cal.data('colpick').height, 10))
                        .get(0),
                    [current.cal.data('colpick').livePreview]
                );
                return false;
            },
            moveHue = function (ev) {
                var pageY = ((ev.type == 'touchmove') ? ev.originalEvent.changedTouches[0].pageY : ev.pageY );
                change.apply(
                    ev.data.cal.data('colpick')
                    .fields.eq(4).val(parseInt(360*(ev.data.cal.data('colpick').height - Math.max(0,Math.min(ev.data.cal.data('colpick').height,(pageY - ev.data.y))))/ev.data.cal.data('colpick').height, 10))
                        .get(0),
                    [ev.data.preview]
                );
                return false;
            },
            upHue = function (ev) {
                fillRGBFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
                fillHexFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
                $(document).off('mouseup touchend',upHue);
                $(document).off('mousemove touchmove',moveHue);
                return false;
            },
            //Color selector functions
            downSelector = function (ev) {
                ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
                var current = {
                    cal: $(this).parent(),
                    pos: $(this).offset()
                };
                current.preview = current.cal.data('colpick').livePreview;

                $(document).on('mouseup touchend',current,upSelector);
                $(document).on('mousemove touchmove',current,moveSelector);

                var payeX,pageY;
                if(ev.type == 'touchstart') {
                    pageX = ev.originalEvent.changedTouches[0].pageX,
                    pageY = ev.originalEvent.changedTouches[0].pageY;
                } else {
                    pageX = ev.pageX;
                    pageY = ev.pageY;
                }

                change.apply(
                    current.cal.data('colpick').fields
                    .eq(6).val(parseInt(100*(current.cal.data('colpick').height - (pageY - current.pos.top))/current.cal.data('colpick').height, 10)).end()
                    .eq(5).val(parseInt(100*(pageX - current.pos.left)/current.cal.data('colpick').height, 10))
                    .get(0),
                    [current.preview]
                );
                return false;
            },
            moveSelector = function (ev) {
                var payeX,pageY;
                if(ev.type == 'touchmove') {
                    pageX = ev.originalEvent.changedTouches[0].pageX,
                    pageY = ev.originalEvent.changedTouches[0].pageY;
                } else {
                    pageX = ev.pageX;
                    pageY = ev.pageY;
                }

                change.apply(
                    ev.data.cal.data('colpick').fields
                    .eq(6).val(parseInt(100*(ev.data.cal.data('colpick').height - Math.max(0,Math.min(ev.data.cal.data('colpick').height,(pageY - ev.data.pos.top))))/ev.data.cal.data('colpick').height, 10)).end()
                    .eq(5).val(parseInt(100*(Math.max(0,Math.min(ev.data.cal.data('colpick').height,(pageX - ev.data.pos.left))))/ev.data.cal.data('colpick').height, 10))
                    .get(0),
                    [ev.data.preview]
                );
                return false;
            },
            upSelector = function (ev) {
                fillRGBFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
                fillHexFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
                $(document).off('mouseup touchend',upSelector);
                $(document).off('mousemove touchmove',moveSelector);
                return false;
            },
            //Submit button
            clickSubmit = function (ev) {
                var cal = $(this).parent();
                var col = cal.data('colpick').color;
                cal.data('colpick').origColor = col;
                setCurrentColor(col, cal.get(0));
                cal.data('colpick').onSubmit(col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el);
            },
            //Show/hide the color picker
            show = function (ev) {
                // Prevent the trigger of any direct parent
                ev.stopPropagation();
                var cal = $('#' + $(this).data('colpickId'));
                cal.data('colpick').onBeforeShow.apply(this, [cal.get(0)]);
                var pos = $(this).offset();
                var top = pos.top + this.offsetHeight;
                var left = pos.left;
                var viewPort = getViewport();
                var calW = cal.width();
                if (left + calW > viewPort.l + viewPort.w) {
                    left -= calW;
                }
                cal.css({left: left + 'px', top: top + 'px'});
                if (cal.data('colpick').onShow.apply(this, [cal.get(0)]) != false) {
                    cal.show();
                }
                //Hide when user clicks outside
                $('html').mousedown({cal:cal}, hide);
                cal.mousedown(function(ev){ev.stopPropagation();})
            },
            hide = function (ev) {
                if (ev.data.cal.data('colpick').onHide.apply(this, [ev.data.cal.get(0)]) != false) {
                    ev.data.cal.hide();
                }
                $('html').off('mousedown', hide);
            },
            getViewport = function () {
                var m = document.compatMode == 'CSS1Compat';
                return {
                    l : window.pageXOffset || (m ? document.documentElement.scrollLeft : document.body.scrollLeft),
                    w : window.innerWidth || (m ? document.documentElement.clientWidth : document.body.clientWidth)
                };
            },
            //Fix the values if the user enters a negative or high value
            fixHSB = function (hsb) {
                return {
                    h: Math.min(360, Math.max(0, hsb.h)),
                    s: Math.min(100, Math.max(0, hsb.s)),
                    b: Math.min(100, Math.max(0, hsb.b))
                };
            },
            fixRGB = function (rgb) {
                return {
                    r: Math.min(255, Math.max(0, rgb.r)),
                    g: Math.min(255, Math.max(0, rgb.g)),
                    b: Math.min(255, Math.max(0, rgb.b))
                };
            },
            fixHex = function (hex) {
                var len = 6 - hex.length;
                if (len > 0) {
                    var o = [];
                    for (var i=0; i<len; i++) {
                        o.push('0');
                    }
                    o.push(hex);
                    hex = o.join('');
                }
                return hex;
            },
            restoreOriginal = function () {
                var cal = $(this).parent();
                var col = cal.data('colpick').origColor;
                cal.data('colpick').color = col;
                fillRGBFields(col, cal.get(0));
                fillHexFields(col, cal.get(0));
                fillHSBFields(col, cal.get(0));
                setSelector(col, cal.get(0));
                setHue(col, cal.get(0));
                setNewColor(col, cal.get(0));
            };
        return {
            init: function (opt) {
                opt = $.extend({}, defaults, opt||{});
                //Set color
                if (typeof opt.color == 'string') {
                    opt.color = hexToHsb(opt.color);
                } else if (opt.color.r != undefined && opt.color.g != undefined && opt.color.b != undefined) {
                    opt.color = rgbToHsb(opt.color);
                } else if (opt.color.h != undefined && opt.color.s != undefined && opt.color.b != undefined) {
                    opt.color = fixHSB(opt.color);
                } else {
                    return this;
                }

                //For each selected DOM element
                return this.each(function () {
                    //If the element does not have an ID
                    if (!$(this).data('colpickId')) {
                        var options = $.extend({}, opt);
                        options.origColor = opt.color;
                        //Generate and assign a random ID
                        var id = 'collorpicker_' + parseInt(Math.random() * 1000);
                        $(this).data('colpickId', id);
                        //Set the tpl's ID and get the HTML
                        var cal = $(tpl).attr('id', id);
                        //Add class according to layout
                        cal.addClass('colpick_'+options.layout+(options.submit?'':' colpick_'+options.layout+'_ns'));
                        //Add class if the color scheme is not default
                        if(options.colorScheme != 'light') {
                            cal.addClass('colpick_'+options.colorScheme);
                        }
                        //Setup submit button
                        cal.find('div.colpick_submit').html(options.submitText).click(clickSubmit);
                        //Setup input fields
                        options.fields = cal.find('input').change(change).blur(blur).focus(focus);
                        cal.find('div.colpick_field_arrs').mousedown(downIncrement).end().find('div.colpick_current_color').click(restoreOriginal);
                        //Setup hue selector
                        options.selector = cal.find('div.colpick_color').on('mousedown touchstart',downSelector);
                        options.selectorIndic = options.selector.find('div.colpick_selector_outer');
                        //Store parts of the plugin
                        options.el = this;
                        options.hue = cal.find('div.colpick_hue_arrs');
                        huebar = options.hue.parent();
                        //Paint the hue bar
                        var UA = navigator.userAgent.toLowerCase();
                        var isIE = navigator.appName === 'Microsoft Internet Explorer';
                        var IEver = isIE ? parseFloat( UA.match( /msie ([0-9]{1,}[\.0-9]{0,})/ )[1] ) : 0;
                        var ngIE = ( isIE && IEver < 10 );
                        var stops = ['#ff0000','#ff0080','#ff00ff','#8000ff','#0000ff','#0080ff','#00ffff','#00ff80','#00ff00','#80ff00','#ffff00','#ff8000','#ff0000'];
                        if(ngIE) {
                            var i, div;
                            for(i=0; i<=11; i++) {
                                div = $('<div></div>').attr('style','height:8.333333%; filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='+stops[i]+', endColorstr='+stops[i+1]+'); -ms-filter: "progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='+stops[i]+', endColorstr='+stops[i+1]+')";');
                                huebar.append(div);
                            }
                        } else {
                            stopList = stops.join(',');
                            huebar.attr('style','background:-webkit-linear-gradient(top,'+stopList+'); background: -o-linear-gradient(top,'+stopList+'); background: -ms-linear-gradient(top,'+stopList+'); background:-moz-linear-gradient(top,'+stopList+'); -webkit-linear-gradient(top,'+stopList+'); background:linear-gradient(to bottom,'+stopList+'); ');
                        }
                        cal.find('div.colpick_hue').on('mousedown touchstart',downHue);
                        options.newColor = cal.find('div.colpick_new_color');
                        options.currentColor = cal.find('div.colpick_current_color');
                        //Store options and fill with default color
                        cal.data('colpick', options);
                        fillRGBFields(options.color, cal.get(0));
                        fillHSBFields(options.color, cal.get(0));
                        fillHexFields(options.color, cal.get(0));
                        setHue(options.color, cal.get(0));
                        setSelector(options.color, cal.get(0));
                        setCurrentColor(options.color, cal.get(0));
                        setNewColor(options.color, cal.get(0));
                        //Append to body if flat=false, else show in place
                        if (options.flat) {
                            cal.appendTo(this).show();
                            cal.css({
                                position: 'relative',
                                display: 'block'
                            });
                        } else {
                            cal.appendTo(document.body);
                            $(this).on(options.showEvent, show);
                            cal.css({
                                position:'absolute'
                            });
                        }
                    }
                });
            },
            //Shows the picker
            showPicker: function() {
                return this.each( function () {
                    if ($(this).data('colpickId')) {
                        show.apply(this);
                    }
                });
            },
            //Hides the picker
            hidePicker: function() {
                return this.each( function () {
                    if ($(this).data('colpickId')) {
                        $('#' + $(this).data('colpickId')).hide();
                    }
                });
            },
            //Sets a color as new and current (default)
            setColor: function(col, setCurrent) {
                setCurrent = (typeof setCurrent === "undefined") ? 1 : setCurrent;
                if (typeof col == 'string') {
                    col = hexToHsb(col);
                } else if (col.r != undefined && col.g != undefined && col.b != undefined) {
                    col = rgbToHsb(col);
                } else if (col.h != undefined && col.s != undefined && col.b != undefined) {
                    col = fixHSB(col);
                } else {
                    return this;
                }
                return this.each(function(){
                    if ($(this).data('colpickId')) {
                        var cal = $('#' + $(this).data('colpickId'));
                        cal.data('colpick').color = col;
                        cal.data('colpick').origColor = col;
                        fillRGBFields(col, cal.get(0));
                        fillHSBFields(col, cal.get(0));
                        fillHexFields(col, cal.get(0));
                        setHue(col, cal.get(0));
                        setSelector(col, cal.get(0));

                        setNewColor(col, cal.get(0));
                        cal.data('colpick').onChange.apply(cal.parent(), [col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el, 1]);
                        if(setCurrent) {
                            setCurrentColor(col, cal.get(0));
                        }
                    }
                });
            }
        };
    }();
    //Color space convertions
    var hexToRgb = function (hex) {
        var hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
        return {r: hex >> 16, g: (hex & 0x00FF00) >> 8, b: (hex & 0x0000FF)};
    };
    var hexToHsb = function (hex) {
        return rgbToHsb(hexToRgb(hex));
    };
    var rgbToHsb = function (rgb) {
        var hsb = {h: 0, s: 0, b: 0};
        var min = Math.min(rgb.r, rgb.g, rgb.b);
        var max = Math.max(rgb.r, rgb.g, rgb.b);
        var delta = max - min;
        hsb.b = max;
        hsb.s = max != 0 ? 255 * delta / max : 0;
        if (hsb.s != 0) {
            if (rgb.r == max) hsb.h = (rgb.g - rgb.b) / delta;
            else if (rgb.g == max) hsb.h = 2 + (rgb.b - rgb.r) / delta;
            else hsb.h = 4 + (rgb.r - rgb.g) / delta;
        } else hsb.h = -1;
        hsb.h *= 60;
        if (hsb.h < 0) hsb.h += 360;
        hsb.s *= 100/255;
        hsb.b *= 100/255;
        return hsb;
    };
    var hsbToRgb = function (hsb) {
        var rgb = {};
        var h = hsb.h;
        var s = hsb.s*255/100;
        var v = hsb.b*255/100;
        if(s == 0) {
            rgb.r = rgb.g = rgb.b = v;
        } else {
            var t1 = v;
            var t2 = (255-s)*v/255;
            var t3 = (t1-t2)*(h%60)/60;
            if(h==360) h = 0;
            if(h<60) {rgb.r=t1; rgb.b=t2; rgb.g=t2+t3}
            else if(h<120) {rgb.g=t1; rgb.b=t2; rgb.r=t1-t3}
            else if(h<180) {rgb.g=t1; rgb.r=t2; rgb.b=t2+t3}
            else if(h<240) {rgb.b=t1; rgb.r=t2; rgb.g=t1-t3}
            else if(h<300) {rgb.b=t1; rgb.g=t2; rgb.r=t2+t3}
            else if(h<360) {rgb.r=t1; rgb.g=t2; rgb.b=t1-t3}
            else {rgb.r=0; rgb.g=0; rgb.b=0}
        }
        return {r:Math.round(rgb.r), g:Math.round(rgb.g), b:Math.round(rgb.b)};
    };
    var rgbToHex = function (rgb) {
        var hex = [
            rgb.r.toString(16),
            rgb.g.toString(16),
            rgb.b.toString(16)
        ];
        $.each(hex, function (nr, val) {
            if (val.length == 1) {
                hex[nr] = '0' + val;
            }
        });
        return hex.join('');
    };
    var hsbToHex = function (hsb) {
        return rgbToHex(hsbToRgb(hsb));
    };
    $.fn.extend({
        colpick: colpick.init,
        colpickHide: colpick.hidePicker,
        colpickShow: colpick.showPicker,
        colpickSetColor: colpick.setColor
    });
    $.extend({
        colpick:{
            rgbToHex: rgbToHex,
            rgbToHsb: rgbToHsb,
            hsbToHex: hsbToHex,
            hsbToRgb: hsbToRgb,
            hexToHsb: hexToHsb,
            hexToRgb: hexToRgb
        }
    });


    $(document).on('mousedown', '[data-colorpicker-input]', function()
    {
        if(!this.colpick) {
            $(this).colpick({
                layout: 'hex',
                submit: 0,
                livePreview: false,
                onChange: function(hsb,hex,rgb,el,bySetColor) {
                    $(el).css('border-bottom','5px solid #'+hex);
                    if(!bySetColor) $(el).val('#'+hex);
                    $(el).trigger('change')
                }
            }).keyup(function(){
                $(this).colpickSetColor(this.value.replace('#', ''));
            });
            this.colpick = true;
        }
    }).on('mouseup', '[data-colorpicker-input]', function() {
        $(this).trigger('change')
    });
    // $('#%(id)s').bind('inview', function() {
    //     $(this).css('border-right-color',$(this).val());
    // }).css('border-right-color',$('#%(id)s').val());

})(jQuery);
