Text Rainbowifier

Make text into rainbow

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name  Text Rainbowifier
// @version  1.4
// @description  Make text into rainbow
// @namespace  awkward_potato:3 -- fixed by Kallen
// @include  *oneplus.net*
// @grant  none
// ==/UserScript==

function tohex(decval) {
    var l, h;
    var str = "";
    l = Math.floor(decval % 16);
    h = Math.floor(decval / 16);
    if (h < 10) {
        str = "" + h;
    }
    if (h > 9) {
        switch (h) {
            case 10:
                str = "A";
                break;
            case 11:
                str = "B";
                break;
            case 12:
                str = "C";
                break;
            case 13:
                str = "D";
                break;
            case 14:
                str = "E";
                break;
            case 15:
                str = "F";
                break;
            default:
                str = "X";
                break;
        }
    }
    if (l < 10) {
        str = str + "" + l;
    }
    if (l > 9) {
        switch (l) {
            case 10:
                str += "A";
                break;
            case 11:
                str += "B";
                break;
            case 12:
                str += "C";
                break;
            case 13:
                str += "D";
                break;
            case 14:
                str += "E";
                break;
            case 15:
                str += "F";
                break;
            default:
                str += "X";
                break;
        }
    }
    return str;
}

function todec(hexval) {
    var l, h;
    hexstr = new String(hexval).toUpperCase();
    switch (hexstr.charAt(0)) {
        case "A":
            h = 10;
            break;
        case "B":
            h = 11;
            break;
        case "C":
            h = 12;
            break;
        case "D":
            h = 13;
            break;
        case "E":
            h = 14;
            break;
        case "F":
            h = 15;
            break;
        default:
            h = eval(hexstr.charAt(0));
    }
    switch (hexstr.charAt(1)) {
        case "A":
            l = 10;
            break;
        case "B":
            l = 11;
            break;
        case "C":
            l = 12;
            break;
        case "D":
            l = 13;
            break;
        case "E":
            l = 14;
            break;
        case "F":
            l = 15;
            break;
        default:
            l = eval(hexstr.charAt(1));
    }
    return l + 16 * h;
}

function hexToRGB(hexval) {
    str = new String(hexval).toUpperCase();
    if (str.charAt(0) == "#") str = str.substr(1);
    g_r = todec(str.substr(0, 2));
    g_g = todec(str.substr(2, 2));
    g_b = todec(str.substr(4, 2));
}

function getSFXColor(k) {
    var r, g, b, k1, min, max;
    //if (g_cstyle == 0) {
    k1 = k;
    r = 127 + 127 * Math.cos(k1 - .5);
    g = 127 + 127 * Math.cos(k1 - 2.5);
    b = 127 + 127 * Math.cos(k1 - 4.5);
    min = r;
    if (g < min) min = g;
    if (b < min) min = b;
    r -= min;
    g -= min;
    b -= min;
    max = r;
    if (g > max) max = g;
    if (b > max) max = b;
    max = 255.0 / max;
    r *= max;
    g *= max;
    b *= max;
    var tekBright = 200;
    var tekContrast = 255;
    max = (tekBright / 255) * (tekContrast / 255);
    min = (255 - tekContrast) * (tekBright / 255);
    r = r * max + min;
    g = g * max + min;
    b = b * max + min;
    if (r < 0) r = 0;
    if (g < 0) g = 0;
    if (b < 0) b = 0;
    if (r > 255) r = 255;
    if (g > 255) g = 255;
    if (b > 255) b = 255;
    /*}
	if (g_cstyle == 1) {
		k -= Math.floor(k);
		r = r1 + k * dr;
		g = g1 + k * dg;
		b = b1 + k * db;
	}
	if (g_cstyle == 2) {
		k -= 2 * Math.floor(k / 2);
		if (k < 1) {
			r = r1 + k * dr;
			g = g1 + k * dg;
			b = b1 + k * db;
		}
		if (k >= 1) {
			k -= 2;
			r = r1 - k * dr;
			g = g1 - k * dg;
			b = b1 - k * db;
		}
	}
	if (g_cstyle == 3) {
		k -= 3 * Math.floor(k / 3);
		if (k < 1) {
			r = r1 + k * dr;
			g = g1 + k * dg;
			b = b1 + k * db;
		}
		if (k >= 1 && k < 2) {
			k -= 1;
			r = r2 + k * dr1;
			g = g2 + k * dg1;
			b = b2 + k * db1;
		}
		if (k >= 2) {
			k -= 2;
			r = r3 + k * dr2;
			g = g3 + k * dg2;
			b = b3 + k * db2;
		}
	}*/
    g_r = r;
    g_g = g;
    g_b = b;
}

function setOutSizeIndicator(divtext) {
    document.getElementById("charssub").setAttribute("id", "oldsub");
    var newdiv = document.createElement("div");
    newdiv.setAttribute("id", "charssub");
    var newtext = document.createTextNode(divtext);
    newdiv.appendChild(newtext);
    document.getElementById("chars").appendChild(newdiv);
    document.getElementById("chars").removeChild(document.getElementById("oldsub"));
}

function preview() {}

function MakeSFX(inputString, outputHTML) {
    var r, g, b;
    var i, j, k, l;
    var x, scale, res;
    var min, max;
    var in_tag = 0;
    var oignumi = 0;
    temp = new String("");
    var numreps = 1;//parseInt($("#gradient_repeat").val());
    if (numreps < 1) numreps = 1;
    if (numreps > 10) numreps = 10;
    instr = inputString;
    outstr = new String("");
    tempstr = new String("");
    res = 1;
    j = instr.length;
    //if (gradientType == "rainbow") {
    scale = Math.PI * (2 * eval(numreps) - .21) / j;
    g_cstyle = 0;
    /*}
	if (gradientType == "oneway") {
		scale = numreps / j;
		g_cstyle = 1;
	}
	if (gradientType == "backandforth") {
		scale = 2.0 * numreps / j;
		g_cstyle = 2;
	}
	if (gradientType == "tricolor") {
		scale = 3.0 * numreps / j;
		g_cstyle = 3;
	}
	if (gradientType == 'oneway' || gradientType == 'backandforth') {
		hexToRGB($("#gradient_1").val());
		r1 = g_r;
		g1 = g_g;
		b1 = g_b;
		hexToRGB($("#gradient_2").val());
		r2 = g_r;
		g2 = g_g;
		b2 = g_b;
		dr = 0.0 + r2 - r1;
		dg = 0.0 + g2 - g1;
		db = 0.0 + b2 - b1;
	}*/
    for (i = 0; i < j; i++) {
        if (instr.charAt(i) == "<") in_tag = 1;
        if (in_tag == 0) {
            k = scale * i;
            //alert(scale);
            //alert(i);
            getSFXColor(k);
            //alert(k);
            r = g_r;
            g = g_g;
            b = g_b;
            //alert(r);
            //alert(g);
            //alert(b);
            tempstr = tohex(r) + tohex(g) + tohex(b);
            temp = instr.charAt(i);
            if (instr.charAt(i) == "&") {
                for (l = i + 1; l < j; l++) {
                    if (instr.charAt(l) == " ") break;
                    if (instr.charAt(l) == "<") break;
                    if (instr.charAt(l) == ">") break;
                    if (instr.charAt(l) == ";") break;
                }
                if (instr.charAt(l) == ";") {
                    temp = instr.substr(i, l - i + 1);
                }
            }
            if (outputHTML) {
                if (i % res == 0) {
                    outstr = outstr + "<font color='#" + tempstr + "'>";
                    oignumi = 1;
                }
                outstr = outstr + temp;
                if ((i + 1) % res == 0) {
                    outstr = outstr + "</font>";
                    oignumi = 0;
                }
            } else {
                if (i % res == 0) {
                    outstr = outstr + "[color=#" + tempstr + "]";
                    oignumi = 1;
                }
                outstr = outstr + temp;
                if ((i + 1) % res == 0) {
                    outstr = outstr + "[/color]";
                    oignumi = 0;
                }
            }
            if (temp.length > 1) i += (temp.length - 1);
        }
        if (in_tag == 1) outstr = outstr + instr.charAt(i);
        if (instr.charAt(i) == ">") in_tag = 0;
    }
    if (oignumi > 0) {
        if (document.colorform.out_format.value == "html") outstr = outstr + "</font>";
        if (document.colorform.out_format.value == "bbc") outstr = outstr + "[/color]";
    }
    return outstr;
}

function UpdateRGB(ctl) {
    var lum;
    ctl.style.backgroundColor = ctl.value;
    hexToRGB(ctl.value);
    lum = .29 * g_r + .57 * g_g + .14 * g_b;
    if (lum < 96) {
        ctl.style.color = "#FFFFFF";
    } else {
        ctl.style.color = "#000000";
    }
    preview();
}

function flipbkg(ctl) {
    if (prevbkc == "#FFFFFF") prevbkc = "#000000";
    else prevbkc = "#FFFFFF";
    ctl.style.backgroundColor = prevbkc;
}

function rainbow(event) {
    if (document.getElementsByClassName('redactor_textCtrl redactor_MessageEditor redactor_BbCodeWysiwygEditor redactor_NoAutoComplete')[0]) {
        iframe = document.getElementsByClassName('redactor_textCtrl redactor_MessageEditor redactor_BbCodeWysiwygEditor redactor_NoAutoComplete')[0];
    } else if (document.getElementsByClassName('redactor_textCtrl redactor_MessageEditor redactor_BbCodeWysiwygEditor redactor_')[0]) {
        iframe = document.getElementsByClassName('redactor_textCtrl redactor_MessageEditor redactor_BbCodeWysiwygEditor redactor_')[0];
    }
        var message = "<span>"+iframe.contentWindow.document.getElementsByTagName('body')[0].innerHTML+"</span>";
    if (message.indexOf("http") == -1 && message.indexOf("www") == -1 && message.indexOf("@") == -1 && message.indexOf("QUOTE") == -1 && message.indexOf("<font color") == -1) {
        iframe.contentWindow.document.getElementsByTagName('body')[0].innerHTML = MakeSFX(message,true);
    }
}

window.addEventListener('submit', rainbow, true);
HTMLFormElement.prototype._submit = HTMLFormElement.prototype.submit;
HTMLFormElement.prototype.submit = rainbow;