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"use strict";
// div.js // modified 2022-03-30 jfm.
// divContent(divId,divContent)
// Change the content of the div.
function divContent(divId,divContent) {
//console.log('divContent('+divId+','+divContent+')');
if ( document.getElementById(divId) ) {
document.getElementById(divId).innerHTML = divContent;
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// createDiv(divId, divClass, divContent, divInsert)
// divId = the id to give the div.
// divClass = the class to give the div.
// divContent = the div content.
// divInsert = the element to insert the div before.
function createDiv(divId,divClass,divContent,divInsert) {
if ( typeof divId === 'undefined' ) { divId = false; }
if ( typeof divClass === 'undefined' ) { divClass = false; }
if ( typeof divContent === 'undefined' ) { divContent = false; }
if ( typeof divInsert === 'undefined' ) { divInsert = false; }
if ( document.body === null ) {
let stackTrace = printStackTrace();
let createDivText = 'createDiv(';
if ( divId ) { createDivText += '\''+divId+'\''; }
if ( divClass ) { createDivText += '\''+divClass+'\''; }
if ( divContent ) { createDivText += '\''+divContent+'\''; }
if ( divInsert ) { createDivText += '\''+divInsert+'\''; }
printStackTrace();
createDivText += ');';
let alertText = 'Error in call of '+createDivText+' !\n\n';
alertText += 'The document body is not loaded so the createDiv function cannot be called.\n';
alertText += 'To corect this, add a function that creates the div(s) then add the function to the onload event.\n\n';
alertText += '// A function to create the div(s) if they are not on the page.\nfunction createDivs() {\n';
alertText += ' '+createDivText+';\n // Place any other createDiv calls below the one above\n';
alertText += '}\n';
alertText += '// Add the createDivs() function to the onload event.\n';
alertText += 'var oldLoad = window.onload;\nvar newLoad = oldLoad ? function(){createDivs.call(this);oldLoad.call(this);} : createDivs\nwindow.onload = newLoad;\n\n';
alertText += 'Stack trace:\n'+stackTrace+'\n';
alert(alertText+'\n\nThis error will be inserted into the page text so you can copy it.');
alertText = alertText.replace(/\n/g,'<br>');
document.write(alertText+'<br><br>');
return;
}
var newDivElement = document.createElement("div");
if ( divId ) { newDivElement.id = divId; }
if ( divClass ) { newDivElement.className = divClass; }
if ( divContent ) { newDivElement.innerHTML = divContent; }
if ( divInsert ) {
// Ensure that the divInsert element exists.
let divInsertId = document.getElementById(divInsert);
//alert('divInsertId='+divInsertId.id);
if (divInsertId) {
// The element exists, insert the new div and return.
//alert('document.body.insertBefore(newDivElement, \''+divInsert+'\');');
divInsertId.parentNode.insertBefore(newDivElement, divInsertId);
return;
}
}
document.body.appendChild(newDivElement);
}
// divDisplayState(divId)
// divId = The id of the div.
// Return the display setting for divId.
function divDisplayState(divId) {
//console.log('divDisplayState('+divId+')');
if ( document.getElementById(divId) ) {
var e = document.getElementById(divId);
if (e.style.display) {
return e.style.display;
}
if (e.currentStyle) {
return e.currentStyle.display;
}
if (document.defaultView.getComputedStyle) {
return document.defaultView.getComputedStyle(e, null).getPropertyValue("display");
}
return 'UNKNOWN';
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// divHide(divId)
// divId = The id of the div.
// Hide the div.
function divHide(divId) {
//console.log('divHide('+divId+')');
if ( document.getElementById(divId) ) {
document.getElementById(divId).style.display = 'none';
} else {
console.warn("document.getElementById('"+divId+"') == 'undefined'");
}
}
// divHideShow(divId)
// divId = The id of the div.
// Toggle the div display.
function divHideShow(divId) {
//console.log('divHide('+divId+')');
if ( document.getElementById(divId) ) {
if ( divDisplayState(divId) === 'none' ) {
divShow(divId);
} else {
divHide(divId);
}
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// divShow(divId)
// divId = The id of the div.
// Show the div.
function divShow(divId) {
//console.log('divShow('+divId+')');
if ( document.getElementById(divId) ) {
document.getElementById(divId).style.display = 'block';
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// divShowInline(divId)
// divId = The id of the div.
// Show the div as inline.
function divShowInline(divId) {
//console.log('divShow('+divId+')');
if ( document.getElementById(divId) ) {
document.getElementById(divId).style.display = 'inline';
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// divShowOnly(divHideList,divId)
// Hide all divs in divHideList and Show divId
function divShowOnly(divHideList,divId) {
//console.log('divShow('+divHideList+','+divId+')');
if ( document.getElementById(divId) ) {
var divHideArray = divHideList.split(",");
for(var i=0; i<divHideArray.length; i++){
divHide(divHideArray[i]);
}
divShow(divId);
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// divShowOnlyInline(divHideList,newId)
// Hide all divs in divHideList and Show divId
function divShowOnlyInline(divHideList,divId) {
//console.log('divShow('+divHideList+','+divId+')');
if ( document.getElementById(divId) ) {
var divHideArray = divHideList.split(",");
for(var i=0; i<divHideArray.length; i++){
divHide(divHideArray[i]);
}
divShowInline(divId);
} else {
console.warn('document.getElementById('+divId+') == udefined');
}
}
// printStackTrace()
// Prints a stack trace.
function printStackTrace() {
var callstack = [];
var isCallstackPopulated = false;
var lines;
var i;
try {
doesntexist.dont.exist+=0; // doesn't exist - that's the point.
} catch(e) {
let i;
let len;
if (e.stack) { // Firefox
lines = e.stack.split('\n');
for (i=0, len=lines.length; i<len; i++) {
if (lines[i].match(/^\s*[A-Za-z0-9\-_\$]+\(/)) {
callstack.push(lines[i]);
}
}
// Remove call to printStackTrace()
callstack.shift();
isCallstackPopulated = true;
}
else if (window.opera && e.message) { // Opera
lines = e.message.split('\n');
for (i=0, len=lines.length; i<len; i++) {
if (lines[i].match(/^\s*[A-Za-z0-9\-_\$]+\(/)) {
var entry = lines[i];
// Append next line also since it has the file info
if (lines[i+1]) {
entry += ' at ' + lines[i+1];
i++;
}
callstack.push(entry);
}
}
// Remove call to printStackTrace()
callstack.shift();
isCallstackPopulated = true;
}
}
if (!isCallstackPopulated) { // IE and Safari
var currentFunction = arguments.callee.caller;
while (currentFunction) {
var fn = currentFunction.toString();
var fname = fn.substring(fn.indexOf("function") + 8, fn.indexOf('')) || 'anonymous';
callstack.push(fname);
currentFunction = currentFunction.caller;
}
}
//document.write(callstack);
return callstack;
}