tinyMCEPopup.requireLangPack();

var detail = 50, strhex = "0123456789abcdef", i, isMouseDown = false, isMouseOver = false;

var colors = [
    "#000000","#000033","#000066","#000099","#0000cc","#0000ff","#330000","#330033",
    "#330066","#330099","#3300cc","#3300ff","#660000","#660033","#660066","#660099",
    "#6600cc","#6600ff","#990000","#990033","#990066","#990099","#9900cc","#9900ff",
    "#cc0000","#cc0033","#cc0066","#cc0099","#cc00cc","#cc00ff","#ff0000","#ff0033",
    "#ff0066","#ff0099","#ff00cc","#ff00ff","#003300","#003333","#003366","#003399",
    "#0033cc","#0033ff","#333300","#333333","#333366","#333399","#3333cc","#3333ff",
    "#663300","#663333","#663366","#663399","#6633cc","#6633ff","#993300","#993333",
    "#993366","#993399","#9933cc","#9933ff","#cc3300","#cc3333","#cc3366","#cc3399",
    "#cc33cc","#cc33ff","#ff3300","#ff3333","#ff3366","#ff3399","#ff33cc","#ff33ff",
    "#006600","#006633","#006666","#006699","#0066cc","#0066ff","#336600","#336633",
    "#336666","#336699","#3366cc","#3366ff","#666600","#666633","#666666","#666699",
    "#6666cc","#6666ff","#996600","#996633","#996666","#996699","#9966cc","#9966ff",
    "#cc6600","#cc6633","#cc6666","#cc6699","#cc66cc","#cc66ff","#ff6600","#ff6633",
    "#ff6666","#ff6699","#ff66cc","#ff66ff","#009900","#009933","#009966","#009999",
    "#0099cc","#0099ff","#339900","#339933","#339966","#339999","#3399cc","#3399ff",
    "#669900","#669933","#669966","#669999","#6699cc","#6699ff","#999900","#999933",
    "#999966","#999999","#9999cc","#9999ff","#cc9900","#cc9933","#cc9966","#cc9999",
    "#cc99cc","#cc99ff","#ff9900","#ff9933","#ff9966","#ff9999","#ff99cc","#ff99ff",
    "#00cc00","#00cc33","#00cc66","#00cc99","#00cccc","#00ccff","#33cc00","#33cc33",
    "#33cc66","#33cc99","#33cccc","#33ccff","#66cc00","#66cc33","#66cc66","#66cc99",
    "#66cccc","#66ccff","#99cc00","#99cc33","#99cc66","#99cc99","#99cccc","#99ccff",
    "#cccc00","#cccc33","#cccc66","#cccc99","#cccccc","#ccccff","#ffcc00","#ffcc33",
    "#ffcc66","#ffcc99","#ffcccc","#ffccff","#00ff00","#00ff33","#00ff66","#00ff99",
    "#00ffcc","#00ffff","#33ff00","#33ff33","#33ff66","#33ff99","#33ffcc","#33ffff",
    "#66ff00","#66ff33","#66ff66","#66ff99","#66ffcc","#66ffff","#99ff00","#99ff33",
    "#99ff66","#99ff99","#99ffcc","#99ffff","#ccff00","#ccff33","#ccff66","#ccff99",
    "#ccffcc","#ccffff","#ffff00","#ffff33","#ffff66","#ffff99","#ffffcc","#ffffff"
];

var named = {
    '#F0F8FF':'Alice Blue','#FAEBD7':'Antique White','#00FFFF':'Aqua','#7FFFD4':'Aquamarine','#F0FFFF':'Azure','#F5F5DC':'Beige',
    '#FFE4C4':'Bisque','#000000':'Black','#FFEBCD':'Blanched Almond','#0000FF':'Blue','#8A2BE2':'Blue Violet','#A52A2A':'Brown',
    '#DEB887':'Burly Wood','#5F9EA0':'Cadet Blue','#7FFF00':'Chartreuse','#D2691E':'Chocolate','#FF7F50':'Coral','#6495ED':'Cornflower Blue',
    '#FFF8DC':'Cornsilk','#DC143C':'Crimson','#00FFFF':'Cyan','#00008B':'Dark Blue','#008B8B':'Dark Cyan','#B8860B':'Dark Golden Rod',
    '#A9A9A9':'Dark Gray','#A9A9A9':'Dark Grey','#006400':'Dark Green','#BDB76B':'Dark Khaki','#8B008B':'Dark Magenta','#556B2F':'Dark Olive Green',
    '#FF8C00':'Darkorange','#9932CC':'Dark Orchid','#8B0000':'Dark Red','#E9967A':'Dark Salmon','#8FBC8F':'Dark Sea Green','#483D8B':'Dark Slate Blue',
    '#2F4F4F':'Dark Slate Gray','#2F4F4F':'Dark Slate Grey','#00CED1':'Dark Turquoise','#9400D3':'Dark Violet','#FF1493':'Deep Pink','#00BFFF':'Deep Sky Blue',
    '#696969':'Dim Gray','#696969':'Dim Grey','#1E90FF':'Dodger Blue','#B22222':'Fire Brick','#FFFAF0':'Floral White','#228B22':'Forest Green',
    '#FF00FF':'Fuchsia','#DCDCDC':'Gainsboro','#F8F8FF':'Ghost White','#FFD700':'Gold','#DAA520':'Golden Rod','#808080':'Gray','#808080':'Grey',
    '#008000':'Green','#ADFF2F':'Green Yellow','#F0FFF0':'Honey Dew','#FF69B4':'Hot Pink','#CD5C5C':'Indian Red','#4B0082':'Indigo','#FFFFF0':'Ivory',
    '#F0E68C':'Khaki','#E6E6FA':'Lavender','#FFF0F5':'Lavender Blush','#7CFC00':'Lawn Green','#FFFACD':'Lemon Chiffon','#ADD8E6':'Light Blue',
    '#F08080':'Light Coral','#E0FFFF':'Light Cyan','#FAFAD2':'Light Golden Rod Yellow','#D3D3D3':'Light Gray','#D3D3D3':'Light Grey','#90EE90':'Light Green',
    '#FFB6C1':'Light Pink','#FFA07A':'Light Salmon','#20B2AA':'Light Sea Green','#87CEFA':'Light Sky Blue','#778899':'Light Slate Gray','#778899':'Light Slate Grey',
    '#B0C4DE':'Light Steel Blue','#FFFFE0':'Light Yellow','#00FF00':'Lime','#32CD32':'Lime Green','#FAF0E6':'Linen','#FF00FF':'Magenta','#800000':'Maroon',
    '#66CDAA':'Medium Aqua Marine','#0000CD':'Medium Blue','#BA55D3':'Medium Orchid','#9370D8':'Medium Purple','#3CB371':'Medium Sea Green','#7B68EE':'Medium Slate Blue',
    '#00FA9A':'Medium Spring Green','#48D1CC':'Medium Turquoise','#C71585':'Medium Violet Red','#191970':'Midnight Blue','#F5FFFA':'Mint Cream','#FFE4E1':'Misty Rose','#FFE4B5':'Moccasin',
    '#FFDEAD':'Navajo White','#000080':'Navy','#FDF5E6':'Old Lace','#808000':'Olive','#6B8E23':'Olive Drab','#FFA500':'Orange','#FF4500':'Orange Red','#DA70D6':'Orchid',
    '#EEE8AA':'Pale Golden Rod','#98FB98':'Pale Green','#AFEEEE':'Pale Turquoise','#D87093':'Pale Violet Red','#FFEFD5':'Papaya Whip','#FFDAB9':'Peach Puff',
    '#CD853F':'Peru','#FFC0CB':'Pink','#DDA0DD':'Plum','#B0E0E6':'Powder Blue','#800080':'Purple','#FF0000':'Red','#BC8F8F':'Rosy Brown','#4169E1':'Royal Blue',
    '#8B4513':'Saddle Brown','#FA8072':'Salmon','#F4A460':'Sandy Brown','#2E8B57':'Sea Green','#FFF5EE':'Sea Shell','#A0522D':'Sienna','#C0C0C0':'Silver',
    '#87CEEB':'Sky Blue','#6A5ACD':'Slate Blue','#708090':'Slate Gray','#708090':'Slate Grey','#FFFAFA':'Snow','#00FF7F':'Spring Green',
    '#4682B4':'Steel Blue','#D2B48C':'Tan','#008080':'Teal','#D8BFD8':'Thistle','#FF6347':'Tomato','#40E0D0':'Turquoise','#EE82EE':'Violet',
    '#F5DEB3':'Wheat','#FFFFFF':'White','#F5F5F5':'White Smoke','#FFFF00':'Yellow','#9ACD32':'Yellow Green'
};

var namedLookup = {};

function init() {
    var inputColor = convertRGBToHex(tinyMCEPopup.getWindowArg('input_color')), key, value;

    tinyMCEPopup.resizeToInnerSize();

    generatePicker();
    generateWebColors();
    generateNamedColors();

    if (inputColor) {
        changeFinalColor(inputColor);

        col = convertHexToRGB(inputColor);

        if (col)
            updateLight(col.r, col.g, col.b);
    }

    for (key in named) {
        value = named[key];
        namedLookup[value.replace(/\s+/, '').toLowerCase()] = key.replace(/#/, '').toLowerCase();
    }
}

function toHexColor(color) {
    var matches, red, green, blue, toInt = parseInt;

    function hex(value) {
        value = parseInt(value).toString(16);

        return value.length > 1 ? value : '0' + value; // Padd with leading zero
    };

    color = tinymce.trim(color);
    color = color.replace(/^[#]/, '').toLowerCase();  // remove leading '#'
    color = namedLookup[color] || color;

    matches = /^rgb\((\d{1,3}),(\d{1,3}),(\d{1,3})\)$/.exec(color);

    if (matches) {
        red   = toInt(matches[1]);
        green = toInt(matches[2]);
        blue  = toInt(matches[3]);
    } else {
        matches = /^([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/.exec(color);

        if (matches) {
            red   = toInt(matches[1], 16);
            green = toInt(matches[2], 16);
            blue  = toInt(matches[3], 16);
        } else {
            matches = /^([0-9a-f])([0-9a-f])([0-9a-f])$/.exec(color);

            if (matches) {
                red   = toInt(matches[1] + matches[1], 16);
                green = toInt(matches[2] + matches[2], 16);
                blue  = toInt(matches[3] + matches[3], 16);
            } else {
                return '';
            }
        }
    }

    return '#' + hex(red) + hex(green) + hex(blue);
}

function insertAction() {
    var color = document.getElementById("color").value, f = tinyMCEPopup.getWindowArg('func');

    var hexColor = toHexColor(color);

    if (hexColor === '') {
        var text = tinyMCEPopup.editor.getLang('advanced_dlg.invalid_color_value');
        tinyMCEPopup.alert(text + ': ' + color);
    }
    else {
        tinyMCEPopup.restoreSelection();

        if (f)
            f(hexColor);

        tinyMCEPopup.close();
    }
}

function showColor(color, name) {
    if (name)
        document.getElementById("colorname").innerHTML = name;

    document.getElementById("preview").style.backgroundColor = color;
    document.getElementById("color").value = color.toUpperCase();
}

function convertRGBToHex(col) {
    var re = new RegExp("rgb\\s*\\(\\s*([0-9]+).*,\\s*([0-9]+).*,\\s*([0-9]+).*\\)", "gi");

    if (!col)
        return col;

    var rgb = col.replace(re, "$1,$2,$3").split(',');
    if (rgb.length == 3) {
        r = parseInt(rgb[0]).toString(16);
        g = parseInt(rgb[1]).toString(16);
        b = parseInt(rgb[2]).toString(16);

        r = r.length == 1 ? '0' + r : r;
        g = g.length == 1 ? '0' + g : g;
        b = b.length == 1 ? '0' + b : b;

        return "#" + r + g + b;
    }

    return col;
}

function convertHexToRGB(col) {
    if (col.indexOf('#') != -1) {
        col = col.replace(new RegExp('[^0-9A-F]', 'gi'), '');

        r = parseInt(col.substring(0, 2), 16);
        g = parseInt(col.substring(2, 4), 16);
        b = parseInt(col.substring(4, 6), 16);

        return {r : r, g : g, b : b};
    }

    return null;
}

function generatePicker() {
    var el = document.getElementById('light'), h = '', i;

    for (i = 0; i < detail; i++){
        h += '<div id="gs'+i+'" style="background-color:#000000; width:15px; height:3px; border-style:none; border-width:0px;"'
        + ' onclick="changeFinalColor(this.style.backgroundColor)"'
        + ' onmousedown="isMouseDown = true; return false;"'
        + ' onmouseup="isMouseDown = false;"'
        + ' onmousemove="if (isMouseDown && isMouseOver) changeFinalColor(this.style.backgroundColor); return false;"'
        + ' onmouseover="isMouseOver = true;"'
        + ' onmouseout="isMouseOver = false;"'
        + '></div>';
    }

    el.innerHTML = h;
}

function generateWebColors() {
    var el = document.getElementById('webcolors'), h = '', i;

    if (el.className == 'generated')
        return;

    // TODO: VoiceOver doesn't seem to support legend as a label referenced by labelledby.
    h += '<div role="listbox" aria-labelledby="webcolors_title" tabindex="0"><table role="presentation" border="0" cellspacing="1" cellpadding="0">'
        + '<tr>';

    for (i=0; i<colors.length; i++) {
        h += '<td bgcolor="' + colors[i] + '" width="10" height="10">'
            + '<a href="javascript:insertAction();" role="option" tabindex="-1" aria-labelledby="web_colors_' + i + '" onfocus="showColor(\'' + colors[i] + '\');" onmouseover="showColor(\'' + colors[i] + '\');" style="display:block;width:10px;height:10px;overflow:hidden;">';
        if (tinyMCEPopup.editor.forcedHighContrastMode) {
            h += '<canvas class="mceColorSwatch" height="10" width="10" data-color="' + colors[i] + '"></canvas>';
        }
        h += '<span class="mceVoiceLabel" style="display:none;" id="web_colors_' + i + '">' + colors[i].toUpperCase() + '</span>';
        h += '</a></td>';
        if ((i+1) % 18 == 0)
            h += '</tr><tr>';
    }

    h += '</table></div>';

    el.innerHTML = h;
    el.className = 'generated';

    paintCanvas(el);
    enableKeyboardNavigation(el.firstChild);
}

function paintCanvas(el) {
    tinyMCEPopup.getWin().tinymce.each(tinyMCEPopup.dom.select('canvas.mceColorSwatch', el), function(canvas) {
        var context;
        if (canvas.getContext && (context = canvas.getContext("2d"))) {
            context.fillStyle = canvas.getAttribute('data-color');
            context.fillRect(0, 0, 10, 10);
        }
    });
}
function generateNamedColors() {
    var el = document.getElementById('namedcolors'), h = '', n, v, i = 0;

    if (el.className == 'generated')
        return;

    for (n in named) {
        v = named[n];
        h += '<a href="javascript:insertAction();" role="option" tabindex="-1" aria-labelledby="named_colors_' + i + '" onfocus="showColor(\'' + n + '\',\'' + v + '\');" onmouseover="showColor(\'' + n + '\',\'' + v + '\');" style="background-color: ' + n + '">';
        if (tinyMCEPopup.editor.forcedHighContrastMode) {
            h += '<canvas class="mceColorSwatch" height="10" width="10" data-color="' + colors[i] + '"></canvas>';
        }
        h += '<span class="mceVoiceLabel" style="display:none;" id="named_colors_' + i + '">' + v + '</span>';
        h += '</a>';
        i++;
    }

    el.innerHTML = h;
    el.className = 'generated';

    paintCanvas(el);
    enableKeyboardNavigation(el);
}

function enableKeyboardNavigation(el) {
    tinyMCEPopup.editor.windowManager.createInstance('tinymce.ui.KeyboardNavigation', {
        root: el,
        items: tinyMCEPopup.dom.select('a', el)
    }, tinyMCEPopup.dom);
}

function dechex(n) {
    return strhex.charAt(Math.floor(n / 16)) + strhex.charAt(n % 16);
}

function computeColor(e) {
    var x, y, partWidth, partDetail, imHeight, r, g, b, coef, i, finalCoef, finalR, finalG, finalB, pos = tinyMCEPopup.dom.getPos(e.target);

    x = e.offsetX ? e.offsetX : (e.target ? e.clientX - pos.x : 0);
    y = e.offsetY ? e.offsetY : (e.target ? e.clientY - pos.y : 0);

    partWidth = document.getElementById('colors').width / 6;
    partDetail = detail / 2;
    imHeight = document.getElementById('colors').height;

    r = (x >= 0)*(x < partWidth)*255 + (x >= partWidth)*(x < 2*partWidth)*(2*255 - x * 255 / partWidth) + (x >= 4*partWidth)*(x < 5*partWidth)*(-4*255 + x * 255 / partWidth) + (x >= 5*partWidth)*(x < 6*partWidth)*255;
    g = (x >= 0)*(x < partWidth)*(x * 255 / partWidth) + (x >= partWidth)*(x < 3*partWidth)*255 + (x >= 3*partWidth)*(x < 4*partWidth)*(4*255 - x * 255 / partWidth);
    b = (x >= 2*partWidth)*(x < 3*partWidth)*(-2*255 + x * 255 / partWidth) + (x >= 3*partWidth)*(x < 5*partWidth)*255 + (x >= 5*partWidth)*(x < 6*partWidth)*(6*255 - x * 255 / partWidth);

    coef = (imHeight - y) / imHeight;
    r = 128 + (r - 128) * coef;
    g = 128 + (g - 128) * coef;
    b = 128 + (b - 128) * coef;

    changeFinalColor('#' + dechex(r) + dechex(g) + dechex(b));
    updateLight(r, g, b);
}

function updateLight(r, g, b) {
    var i, partDetail = detail / 2, finalCoef, finalR, finalG, finalB, color;

    for (i=0; i<detail; i++) {
        if ((i>=0) && (i<partDetail)) {
            finalCoef = i / partDetail;
            finalR = dechex(255 - (255 - r) * finalCoef);
            finalG = dechex(255 - (255 - g) * finalCoef);
            finalB = dechex(255 - (255 - b) * finalCoef);
        } else {
            finalCoef = 2 - i / partDetail;
            finalR = dechex(r * finalCoef);
            finalG = dechex(g * finalCoef);
            finalB = dechex(b * finalCoef);
        }

        color = finalR + finalG + finalB;

        setCol('gs' + i, '#'+color);
    }
}

function changeFinalColor(color) {
    if (color.indexOf('#') == -1)
        color = convertRGBToHex(color);

    setCol('preview', color);
    document.getElementById('color').value = color;
}

function setCol(e, c) {
    try {
        document.getElementById(e).style.backgroundColor = c;
    } catch (ex) {
        // Ignore IE warning
    }
}

tinyMCEPopup.onInit.add(init);
