// Script by: Chris Williams
// - Pure Form Solutions -
// www.PureFormSolutions.com
//init variables
var isRichText = false;
var rng;
var currentRTE;
var allRTEs = "";
var isIE;
var isGecko;
var isSafari;
var isKonqueror;
initRTE();
function initRTE() {
//set browser vars
var ua = navigator.userAgent.toLowerCase();
isIE = ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1));
isGecko = (ua.indexOf("gecko") != -1);
isSafari = (ua.indexOf("safari") != -1);
isKonqueror = (ua.indexOf("konqueror") != -1);
//check to see if designMode mode is available
if (document.getElementById && document.designMode && !isSafari && !isKonqueror) {
isRichText = true;
}
}
function writeRichText(rte, html, width, height, _readOnly) {
if (isRichText) {
if (allRTEs.length > 0) allRTEs += ";";
allRTEs += rte;
writeRTE(rte, html, width, height, _readOnly);
} else {
writeDefault(rte, html, width, height, _readOnly);
}
}
function writeDefault(rte, html, width, height, readOnly) {
document.writeln('');
}
function writeRTE(rte,html,width,height,readOnly) {
if (isIE != true) {
width += 2;
}
document.writeln('');
document.writeln('');
document.getElementById("hdn" + rte).value = html;
enableDesignMode(rte,html,readOnly);
}
function enableDesignMode(rte,html,readOnly) {
var frameHtml = "\n";
frameHtml += "\n";
frameHtml += "\n";
frameHtml += "\n";
frameHtml += "\n";
frameHtml += html + "\n";
frameHtml += "\n";
frameHtml += "";
if (document.all) {
var oRTE = frames[rte].document;
oRTE.open();
oRTE.write(frameHtml);
oRTE.close();
if (!readOnly) {
oRTE.designMode = "On";
}
} else {
try {
if (!readOnly) {
document.getElementById(rte).contentDocument.designMode = "on";
}
try {
var oRTE = document.getElementById(rte).contentWindow.document;
oRTE.open();
oRTE.write(frameHtml);
oRTE.close();
if (isGecko && !readOnly) {
//attach a keyboard handler for gecko browsers to make keyboard shortcuts work
oRTE.addEventListener("keypress",kb_handler,true);
}
} catch (e) {
alert("Error preloading content.");
}
} catch (e) {
if (isGecko) {
setTimeout("enableDesignMode('" + rte + "', '" + html + "', " + readOnly + ");",10);
} else {
return false;
}
}
}
}
function updateRTEs() {
var vRTEs = allRTEs.split(";");
for (var i = 0; i < vRTEs.length; i++) {
updateRTE(vRTEs[i]);
}
}
function updateRTE(rte) {
if (!isRichText) {
return;
}
//set message value
var oHdnMessage = document.getElementById("hdn" + rte);
var oRTE = document.getElementById(rte);
try {
if (isRichText) {
if (oHdnMessage.value == null) {
oHdnMessage.value = "";
}
if (document.all) {
oHdnMessage.value = frames[rte].document.body.innerHTML;
} else {
oHdnMessage.value = oRTE.contentWindow.document.body.innerHTML;
}
//if there is no content (other than formatting) set value to nothing
if ((stripHTML(oHdnMessage.value.replace(" ", " ")) == "") && (oHdnMessage.value.toLowerCase().search(" 0) && mOffsetParent) {
mOffsetTop += mOffsetParent.offsetTop;
mOffsetParent = mOffsetParent.offsetParent;
parents_up--;
}
return mOffsetTop;
}
// Ernst de Moor: Fix the amount of digging parents up, in case the RTE editor itself is displayed in a div.
function getOffsetLeft(elm, parents_up) {
var mOffsetLeft = elm.offsetLeft;
var mOffsetParent = elm.offsetParent;
if (!parents_up) {
parents_up = 10000; // arbitrary big number
}
while((parents_up > 0) && mOffsetParent) {
mOffsetLeft += mOffsetParent.offsetLeft;
mOffsetParent = mOffsetParent.offsetParent;
parents_up--;
}
return mOffsetLeft;
}
function Select(rte,selectname) {
var oRTE;
if (document.all) {
oRTE = frames[rte];
//get current selected range
var selection = oRTE.document.selection;
if (selection != null) {
rng = selection.createRange();
}
} else {
oRTE = document.getElementById(rte).contentWindow;
//get currently selected range
var selection = oRTE.getSelection();
rng = selection.getRangeAt(selection.rangeCount - 1).cloneRange();
}
var idx = document.getElementById(selectname).selectedIndex;
// First one is always a label
if (idx != 0) {
var selected = document.getElementById(selectname).options[idx].value;
var cmd = selectname.replace("_" + rte,"");
oRTE.focus();
oRTE.document.execCommand(cmd,false,selected);
oRTE.focus();
document.getElementById(selectname).selectedIndex = 0;
}
}
function kb_handler(evt) {
var rte = evt.target.id;
if (evt.ctrlKey) {
var key = String.fromCharCode(evt.charCode).toLowerCase();
var cmd = "";
switch (key) {
case "b": cmd = "bold"; break;
case "i": cmd = "italic"; break;
case "u": cmd = "underline"; break;
};
if (cmd) {
formatText(rte,cmd,true);
// stop the event bubble
evt.preventDefault();
evt.stopPropagation();
}
}
}
function stripHTML(oldString) {
var newString = oldString.replace(/(<([^>]+)>)/ig,"");
//replace carriage returns and line feeds
newString = newString.replace(/\r\n/g," ");
newString = newString.replace(/\n/g," ");
newString = newString.replace(/\r/g," ");
//trim string
newString = trim(newString);
return newString;
}
function trim(inputString) {
if (typeof inputString != "string") {
return inputString;
}
var retValue = inputString;
var ch = retValue.substring(0, 1);
while (ch == " ") { // Check for spaces at the beginning of the string
retValue = retValue.substring(1, retValue.length);
ch = retValue.substring(0, 1);
}
ch = retValue.substring(retValue.length-1, retValue.length);
while (ch == " ") { // Check for spaces at the end of the string
retValue = retValue.substring(0, retValue.length-1);
ch = retValue.substring(retValue.length-1, retValue.length);
}
// Note that there are two spaces in the string - look for multiple spaces within the string
while (retValue.indexOf(" ") != -1) {
// Again, there are two spaces in each of the strings
retValue = retValue.substring(0, retValue.indexOf(" ")) + retValue.substring(retValue.indexOf(" ")+1, retValue.length);
}
return retValue;
}