"cannot read property length of null" - Google

"cannot read property length of null" - Google - javascript

I am writing a simple application using Flask. I am using Google API for drawing graphs. The first page displays correctly.
But in the next pages I am getting "cannot read property length of null" error.
My Code is as shown below:
Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="refresh" content="100; URL=http://127.0.0.1:5000/">
<title>Test</title>
<!-- Bootstrap Core CSS -->
<link href="static/css/bootstrap.min.css" rel="stylesheet">
<link href="static/css/bootstrap-multiselect.css" rel="stylesheet">
<link href="static/css/new.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="static/lib/css/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<!-- JavaScript -->
<script src="static/js/jquery.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script src="static/js/bootstrap.min.js"></script>
<script src="static/js/bootstrap-multiselect.js"></script>
<script src="static/js/Chart.js-master/Chart.js"></script>
</head>
<body onload = onLoading()>
<div class="container">
<div class="col-xs-12">
<div class="page-header">
<h3><b>Test</b></h3>
</div>
<div class="carousel slide" id="myCarousel">
<nav>
<ul class="control-box pager">
<li><a data-slide="prev" href="#myCarousel" class=""><i class="glyphicon glyphicon-chevron-left"></i></a></li>
<li><a data-slide="next" href="#myCarousel" class=""><i class="glyphicon glyphicon-chevron-right"></i></li>
</ul>
</nav>
<!-- /.control-box -->
<!-- Slide1 -->
<div class="carousel-inner" id="imp">
<!-- /Slide1 -->
</div><!-- /Carousel inner -->
</div><!-- /#myCarousel -->
</div><!-- /.col-xs-12 -->
</div><!-- /.container -->
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
// Carousel Auto-Cycle
$(document).ready(function() {
$('.carousel').carousel({
interval: 3000
})
});
function onLoading() {
//alert("Inside");
$.get("/load",function(calldata,status) {
//console.log(calldata);
//alert(calldata.length);
var num_nodes = calldata.length;
var loop = 0;
for (i=0;i<num_nodes;i++) {
if (i%4==0) {
if (i==0) {
var divoutput = document.getElementById("imp");
var divhtml = '<div class="item active" id="c'+(i/4)+'"></div>';
divoutput.innerHTML = divoutput.innerHTML+divhtml;
alert(i);
console.log(divoutput.innerHTML);
} else {
var divoutput = document.getElementById("imp");
var divhtml = '<div class="item" id="c'+(i/4)+'"></div>';
divoutput.innerHTML = divoutput.innerHTML+divhtml;
loop = i/4;
alert(loop);
console.log(divoutput.innerHTML);
}
}
var data = new google.visualization.DataTable();
data.addColumn('string', 'Errors');
data.addColumn('number', 'Statistics');
data.addRows([
['Success', calldata[i].errors.success],
['Authorization Failure', calldata[i].errors.auth_failure],
['Feature Failure', calldata[i].errors.feature_failure],
['FSOL Failure', calldata[i].errors.fsol_failure]
]);
var options = {
title: calldata[i].node_name,
is3D: true,
backgroundColor:'#ECECEA',
};
var output = document.getElementById("c"+loop);
//alert("***"+document.getElementById("c"+loop));
var html = '<div class="col-sm-6"><div class="fff"><div class="thumbnail" id="i'+i+'"></div></div></div>';
//alert(html);
output.innerHTML = output.innerHTML + html;
var tmp = "i";
var ele_id = tmp.concat(i);
//alert(ele_id);
if (calldata[i].errors.success < calldata[i].errors.auth_failure) {
document.getElementById("i"+i).style.backgroundColor = "red";
}
google.setOnLoadCallback(drawChart(ele_id,data,options));
}
});
}
function drawChart(ele_id,data,options)
{
google.load("visualization", "1", {packages:["corechart"]});
//alert(ele_id);
//alert("draw"+document.getElementById(ele_id));
var chart = new google.visualization.PieChart(document.getElementById(ele_id));
chart.draw(data, options);
}
</script>
</body>
</html>

I use bootstrap tabs and want to display a graph on a hidden tab and I get the same error as you
When I display the graph on an active table it show's up perfectly.
So I guess there is something linked to the DOM and hidden elements nothing to do with your data

Related

Loading JSON data from external server onto an HTML page

I am trying to to display JSON data from an external location (3 images with a city name and tagline) onto my HTML page but getting an error:
"Uncaught ReferenceError: showPlaces is not defined
at places.json:1:1" even though I did define the function already in my JS file.
JSON data: https://www.selicaro.com/webd330/week6/places.json
https://codepen.io/stefan927/pen/MWOqxmN?editors=1111
*<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<!-- Bootstrap CSS -->
<link
rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"
integrity="sha384-
9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4"
crossorigin="anonymous"
/>
<link rel="stylesheet" href="jsonp.css" />
<title>Week 6 | Assignment | JSONP</title>
</head>
<body>
<div class="container">
<h3 class="card-title">
Assignment: Load JSONP from an External Server
</h3>
<form>
<div class="form-group">
<button
type="button"
class="btn btn-primary mx-auto d-block"
id="btn2"
>
Load JSON
</button>
</div>
</form>
<div id="output"></div>
</div>
<!-- Optional JavaScript -->
<script>
(function() {
var btn = document.getElementById('btn2');
btn.addEventListener('click', getJson);
function getJson() {
var output = document.getElementById('output');
output.setAttribute("class", "card-group");
var xhr = new XMLHttpRequest();
var url = 'https://www.selicaro.com/webd330/week6/places.json'
xhr.open('GET', url, true);
xhr.onload = function(data) {
if (this.readyState === 4) {
if (this.status === 200) {
var data = JSON.parse(this.responseText);
function showPlaces(data) {
var content = '';
for (i = 0; i < data.places.length; i++) {
content += '<div class="card" style="width: 20rem;">'
content += '<img class="card-img-top" src=" data.places[i]["img"]
+ '
" alt="
image of city ">';
content += '<div class="card-body">';
content += '<h5 class="card-title">' + data.places[i].loc '</h5>';
content += '<p class="card-text">tagline: ' + data.places[i]
["tagline"] + '</p>';
content += '</div></div>';
}
document.getElementById('output').innerHTML = content;
}
}
}
xhr.send(null);
}
}
})();
</script>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<!--Your JS files go below this comment-->
<script src="week6.js"></script>
<script src="https://www.selicaro.com/webd330/week6/places.json"></script>
<script
src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-
q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"
></script>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"
integrity="sha384-
cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ"
crossorigin="anonymous"
></script>
<script
src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"
integrity="sha384-
uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm"
crossorigin="anonymous"
></script>
</body>
</html>*

Add a Google Sheet list of values to the materialize autocomplete function

I'm trying to create a simple web app that add countries to a google sheet. And use materialize autocompletes to assist the user (which simply autocomplete the country, with no images attached). I saw a couple of examples of the materialize autocomplete, but always with a predefined autocomplete list. This is the html I used:
<html>
<head>
<!--Import Google Icon Font-->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!--Import materialize.css-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div class="row">
<div class="col s12">
<div class="row">
<div class="input-field col s12">
<i class="material-icons prefix">work_outline</i>
<input id="autocomplete-input" type="text" class="autocomplete">
<label for="autocomplete-input">Country</label>
</div>
</div>
</div>
</div>
<div class="input-field col s12">
<button class="btn waves-effect waves-light amber accent-4" id="add_btn">Add country
<i class="material-icons right">send</i>
</button>
</div>
<!-- Compiled and minified JavaScript -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
<script>
google.script.run.withSuccessHandler(tags).getCountry();
function tags(data) {
var availableTags = data;
$('input.autocomplete').autocomplete({
data: availableTags
});
};
document.getElementById("add_btn").addEventListener("click", doStuff);
function doStuff() {
var ucountry = document.getElementById("autocomplete-input").value;
google.script.run.userClicked(ucountry);
document.getElementById("autocomplete-input").value = "";
};
</script>
</body>
</html>
And this is my code in google script, the function getCountry works, and returns a list of countries. But I didn't succeed in adding them to the materialize autocomplete function.
function doGet() {
var template = HtmlService.createTemplateFromFile("page");
var html = template.evaluate();
return html;
}
function userClicked(country){
var url = "https://docs.google.com/spreadsheets/d/1_GtmVrdD1Es6zQZna_Mv-Rc3JkIu66-q_knQ8aqcUIc/edit#gid=0";
var ss = SpreadsheetApp.openByUrl(url);
var ws = ss.getSheetByName("Data");
ws.appendRow([country]);
}
function getCountry(){
var ws = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Data");
var list = ws.getRange(1,1,ws.getRange("A1").getDataRegion().getLastRow(),1).getValues(); // contains countries
list = list.map(function(r){return r[0]; });
Logger.log(list);
var data = "{";
for (var i = 0; i < list.length; i++) {
data = data + "'" + list[i] + "': null,";
}
data = data.slice(0, -1) + "}";
Logger.log(data);
return data;
}
This is the information on https://materializecss.com/autocomplete.html
// Or with jQuery
$(document).ready(function(){
$('input.autocomplete').autocomplete({
data: {
"Apple": null,
"Microsoft": null,
"Google": 'https://placehold.it/250x250'
},
});
});

Answer:
You can use web polling to update your page with a set interval such that it always retrieves updated data from the Sheet.
Code:
Piggybacking off the answer here, edit your script to include:
function polling(){
setInterval(update, 500);
}
function update(){
google.script.run.withSuccessHandler(tags).getCountry();
}
and make sure that you run the polling() function on load:
<body onload="polling()">
<!-- your body goes here -->
</body>
Full page.html:
<html>
<head>
<meta charset="utf-8">
<!--Import Google Icon Font-->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!--Import materialize.css-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<link rel="stylesheet" href="/resources/demos/style.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
</head>
<body onload="polling()">
<div class="row">
<div class="col s12">
<div class="row">
<div class="input-field col s12">
<i class="material-icons prefix">work_outline</i>
<input id="autocomplete-input" type="text" class="autocomplete" placeholder="Country">
</div>
</div>
</div>
</div>
<div class="input-field col s12">
<button class="btn waves-effect waves-light amber accent-4" id="add_btn">Add country
<i class="material-icons right">send</i>
</button>
</div>
<script>
function polling(){
setInterval(update, 500);
}
function update(){
google.script.run.withSuccessHandler(tags).getCountry();
}
google.script.run.withSuccessHandler(tags).getCountry();
function tags(list) {
console.log(list);
var availableTags = list;
$("#autocomplete-input").autocomplete({
source: availableTags
});
};
document.getElementById("add_btn").addEventListener("click", doStuff);
function doStuff() {
var ucountry = document.getElementById("autocomplete-input").value;
google.script.run.userClicked(ucountry);
document.getElementById("autocomplete-input").value = "";
};
</script>
</body>
</html>
And leave your code.gs file unchanged.
References:
Stack Overflow - Creating an autocomplete function in Google Script that works with a list of values from the Google Sheet
Stack Overflow - Is it possible to import XML or JSON data from a table within a Word online document into Apps Script website as an HTML table?

Changing the getCountry() function, so it reads the data as an object and not as a string fixed it.
function doGet() {
var template = HtmlService.createTemplateFromFile("page");
var html = template.evaluate();
return html;
}
function userClicked(country){
var url = "https://docs.google.com/spreadsheets/d/1_GtmVrdD1Es6zQZna_Mv-Rc3JkIu66-q_knQ8aqcUIc/edit#gid=0";
var ss = SpreadsheetApp.openByUrl(url);
var ws = ss.getSheetByName("Data");
ws.appendRow([country]);
}
function getCountry(){
var ws = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Data");
var list = ws.getRange(1,1,ws.getRange("A1").getDataRegion().getLastRow(),1).getValues(); // contains countries
list = list.map(function(r){return r[0]; });
Logger.log(list);
var data = {};
for (var i = 0; i < list.length; i++) {
data[list[i]] = null;}
return data;
}
And the html stayed the same:
<html>
<head>
<!--Import Google Icon Font-->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!--Import materialize.css-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div class="row">
<div class="col s12">
<div class="row">
<div class="input-field col s12">
<i class="material-icons prefix">work_outline</i>
<input id="autocomplete-input" type="text" class="autocomplete">
<label for="autocomplete-input">Country</label>
</div>
</div>
</div>
</div>
<div class="input-field col s12">
<button class="btn waves-effect waves-light amber accent-4" id="add_btn">Add country
<i class="material-icons right">send</i>
</button>
</div>
<!-- Compiled and minified JavaScript -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
<script>
google.script.run.withSuccessHandler(tags).getCountry();
function tags(data) {
var availableTags = data;
$('input.autocomplete').autocomplete({
data: availableTags
});
};
document.getElementById("add_btn").addEventListener("click", doStuff);
function doStuff() {
var ucountry = document.getElementById("autocomplete-input").value;
google.script.run.userClicked(ucountry);
document.getElementById("autocomplete-input").value = "";
};
</script>
</body>
</html>

Bootstrap template - Change portfolio text

Ok I downloaded this bootstrap template - Freelancer:
https://blackrockdigital.github.io/startbootstrap-freelancer/
I changed some stuff but the main code is still there. This is how the page looks:
When you click on any of the three cards (HTML or PHP or Android) it displays the picture and title ok, but the description of the course is wrong, it is always the html text.
I tried changing the:
// Popup initialization
var popup = new Popup();
popup.setContent(htmlText);
var popup2 = new Popup();
popup.setContent(phpText);
var popup3 = new Popup();
popup.setContent(androidText);
var modal = new Modal("modal", popup);
var modal2 = new Modal("modal", popup2);
var modal3 = new Modal("modal", popup3);
I also tried adding this at the Popup:
// Popup initialization
var popup = new Popup();
if(popup.title=="Android"){
popup.setContent(androidText);
};
This did not work.
How do I set different descriptions for every popup ?
This is the full html:
<!DOCTYPE html>
<html>
<head>
<title>Team Logic Education Center</title>
<!-- Support for Serbian Latin -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- Font Awesome Icons -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- Google font: Montserrat (400, 500, 600, 700) -->
<link href="https://fonts.googleapis.com/css?family=Montserrat:400,500,600,700" rel="stylesheet">
<!-- Google font: Lato (400, 700) -->
<link href="https://fonts.googleapis.com/css?family=Lato:400,700" rel="stylesheet"></head>
<!-- Body CSS -->
<link href="css/body.css" rel="stylesheet">
<!-- Header CSS and JS -->
<link href="css/header.css" rel="stylesheet">
<script src="js/header.js"></script>
<!-- Content CSS -->
<link href="css/content.css" rel="stylesheet">
<!-- Section CSS -->
<link href="css/section.css" rel="stylesheet">
<!-- Course CSS and JS -->
<link rel="stylesheet" href="css/course.css">
<script src="js/coursebox.js"></script>
<!-- Contact CSS and JS -->
<!-- <link href="css/contact.css" rel="stylesheet">
<script src="js/contact.js"></script> -->
<!-- Modal CSS and JS -->
<link href="css/modal.css" rel="stylesheet">
<script src="js/modal.js"></script>
<!-- Popup CSS and JS -->
<link href="css/popup.css" rel="stylesheet">
<script src="js/popup.js"></script>
<!-- Data -->
<script src="js/data.js"></script>
</head>
<body>
<!-- Header -->
<div id="header">
<!-- Content inserted via JS -->
</div>
<!-- Popup window (which is modal) -->
<div id="modal">
<!-- Content inserted via JS -->
</div>
<div class="content">
<!-- In-page link for logo section -->
<a class="inlink" id="pocetna"></a>
<!-- Logo section -->
<div class="section green">
<img class="logo" src="Images/TL.png">
<h1>Team Logic Education Center</h1>
</div>
<!-- In-page link for course section -->
<a class="inlink" id="kursevi"></a>
<!-- Course section -->
<div class="section white">
<h1>Kursevi</h1>
<hr>
<div id="courseBox">
<!-- Content inserted via JS -->
</div>
</div>
<!-- In-page link for about section -->
<a class="inlink" id="onama"></a>
<!-- About section -->
<div class="section green">
<h1>O Nama</h1>
<hr>
<p id="content" class="columns" style="max-width: 600px; margin: auto">
<!-- Content inserted via JS -->
</p>
</div>
<!-- In-page link for prices section -->
<a class="inlink" id="cenovnik"></a>
<!-- Prices section -->
<div class="section bluePrice">
<h1>Cenovnik</h1>
<hr>
<p id="contentCenovnik" class="columns" style="max-width: 600px; margin: auto">
<table align="center" style="font-family: Montserrat;">
<tr style="color:white; background-color: #17222c;">
<td>Kurs</td>
<td>Cena</td>
<td>Vreme trajanja</td>
</tr>
<tr>
<td>HTML + CSS + JS </td>
<td>100€</td>
<td>90 min / 1 mesec</td>
</tr>
<tr>
<td>PHP</td>
<td>100€</td>
<td>90 min / 1 mesec</td>
</tr>
<tr>
<td>Android</td>
<td>150€</td>
<td>90 min / 1 mesec</td>
</tr>
</table>
</p>
</div>
<!-- In-page link for contact section -->
<a class="inlink" id="kontakt"></a>
<!-- Contact section -->
<div class="section white">
<h1>Kontakt</h1>
<hr>
<div style="font-family: Lato; font-size: 20px; color: #2C3E50; max-width: 600px; margin: auto">
<div style="float:left;"> <img src="Images/MSG.png" style="vertical-align: middle;"> <span style="vertical-align: middle;"> email#blablac.com </span> </div>
<div style="float:right;"><img src="Images/MOB.png" style="vertical-align: middle;"> <span style="vertical-align: middle;"> +381 (0)63 44 21 56 </span> </div>
</div>
<br>
<br>
<br>
<br>
<br>
<br>
<div id="map" style="width:100%;height:400px">
</div>
<!-- Information section -->
<!-- <div class="section lightBlue">
</div> -->
<!-- Footer section -->
<div class="section darkBlue">
<footer>
Facebook | Linkedin | Skype <br>
© 2017 TeamLogic. Sva prava zadržana.
</footer>
</div>
</div>
</body>
<script>
// Header initialization (using data.js)
var header = new Header("header");
for(var i = 0; i < links.length; i++) {
header.addLink(
links[i].text,
links[i].href,
links[i].className
);
}
// Popup initialization
var popup = new Popup();
popup.setContent(htmlText);
// var popup2 = new Popup();
// popup.setContent(lorem);
//
// var popup3 = new Popup();
// popup.setContent(phpText);
var modal = new Modal("modal", popup);
//
// var modal2 = new Modal("modal", popup2);
// var modal3 = new Modal("modal", popup3);
// Course box initialization (using data.js)
var courseBox = new CourseBox("courseBox");
for(var i = 0; i < courseItems.length; i++) {
courseBox.addItem(
courseItems[i].text,
courseItems[i].color
);
}
courseBox.setCallback(function (text, color) {
popup.setTitle(text);
popup.setCaption(text);
popup.setCaptionBgColor(color);
modal.open();
});
// About section initialization (using data.js)
var content = document.getElementById("content");
content.innerHTML = lorem;
// Prices section initialization (using data.js)
// var contentCenovnik = document.getElementById("contentCenovnik");
// contentCenovnik.innerHTML = cene;
// Google map
function myMap() {
var myCenter = new google.maps.LatLng(43.332859, 21.908850);
var mapCanvas = document.getElementById("map");
var mapOptions = {center: myCenter, zoom: 15};
var map = new google.maps.Map(mapCanvas, mapOptions);
var marker = new google.maps.Marker({position:myCenter});
marker.setMap(map);
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?callback=myMap"></script>
</body>
</html>
This is the popup.js :
function Popup() {
var self = this;
self.callback = null;
self.setTitle = function (title) {
self.popupTitle.innerHTML = title;
}
self.setCaption = function (caption) {
self.imgBoxCap.innerHTML = caption;
}
self.setCaptionBgColor = function (bgColor) {
self.imgBoxCap.style.backgroundColor = bgColor;
}
self.setContent = function (content) {
self.popupContent.innerHTML = content;
}
self.open = function() {
self.container.className = "popup";
}
self.close = function() {
self.container.className = "popup zoomOut";
}
self.onClose = function() {
if (self.callback != null) {
self.callback();
}
}
self.setCallback = function(callback) {
self.callback = callback;
}
self.crossItem = document.createElement("div");
self.crossItem.className = "cross";
self.crossItem.addEventListener("click", self.onClose);
self.crossItem.innerHTML = "×";
self.crossBox = document.createElement("div");
self.crossBox.className = "crossBox";
self.crossBox.appendChild(self.crossItem);
self.popupTitle = document.createElement("div");
self.bar = document.createElement("div");
self.bar.className = "bar";
self.bar.appendChild(self.popupTitle);
self.bar.appendChild(self.crossBox);
self.imgBoxCap = document.createElement("div");
self.imgBoxCap.className = "imgBoxCap";
self.imgBox = document.createElement("div");
self.imgBox.className = "imgBox";
self.imgBox.appendChild(self.imgBoxCap);
self.popupContent = document.createElement("p");
self.middle = document.createElement("div");
self.middle.className = "middle";
self.middle.appendChild(self.imgBox);
self.middle.appendChild(self.popupContent);
self.container = document.createElement("div");
self.container.className = "popup none";
self.container.appendChild(self.bar);
self.container.appendChild(self.middle);
}
Also tried this:
// Popup initialization
var popup = new Popup();
if(CourseBox.text=="Android"){
popup.setContent(phpText);
} else {
popup.setContent(htmlText);
};
But every description is now phpText...

Fixed in:
courseBox.setCallback(function (text, color) {
console.log(text);
popup.setTitle(text);
//HERE
if (text=="HTML + CSS + JS") {
popup.setCaption(text);
popup.setContent(htmlText);
} else if(text=="PHP") {
popup.setCaption(text);
popup.setContent(phpText);
} else {
popup.setCaption(text);
popup.setContent(androidText);
};
popup.setCaptionBgColor(color);
modal.open();
});

JavaScript does not execute in emulator (PhoneGap in Android)

I am facing a strange behavior in my PhoneGap Application.I am new to this so your every help will be appreciable.
I've made an application in PhoneGap(Cordova) where I have designed two Index.html file.
Using Index.html file when I click on Icon(my_notification_new) I move to Notification.html.(In which data displayed in list view loaded from Server).
A) Index.html (Which works perfect)
<!DOCTYPE html>
<html>
<head>
<!-- /* Title */ -->
<title>Newa: HTML Template</title>
<!-- /* Meta Tags */ -->
<meta charset="utf-8">
<meta name="description" content="">
<meta name="author" content="">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<!-- /* Stylesheets */ -->
<link rel="stylesheet" href="css/my-custom-theme.css">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div data-role="page">
<div class="header">
<p>Smart Self-Service</p>
</div>
<div class="content">
<div class="bar">
/***********Move to Notification.html******************/
<div class="one_half">
<a href="Notification.html">
<img src="images/my_notification_new.png" align="center" /></a>
<p class="dashfont" align="center">Notifications</p>
</div>
/********************************************************/
<div class="one_half">
<a href="#">
<img src="images/new_request_new.png" align="center" /></a>
<p class="dashfont" >Self-Service request</p>
</div>
</div>
<div class="bar">
<div class="one_half">
<a href="#">
<img src="images/setting.png" align="center" /></a>
<p class="dashfont" align="center">Settings</p>
</div>
<div class="one_half">
<a href="#">
<img src="images/exit.png" align="center" /></a>
<p class="dashfont" align="center"ali>Exit</p>
</div>
</div>
</div>
<div class="footer">
</div>
</div>
</body>
</html>
Now after changes some design I've make this Index.html
B)Index.html(through this when I move to Notification.html I cant see data in list view JS is not execute)
<!DOCTYPE html>
<html>
<head>
<title>Worklist</title>
<meta charset="utf-8">
<meta name="description" content="">
<meta name="author" content="">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.css"/>
<link rel="stylesheet" href="css/style.css">
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>
<style type="text/css">
#center_content{
text-align:center;
min-height:400px;
}
#dashboard{
width:350px;
margin:0px auto;
display:block;
clear:both;
text-align:center;
}
.dashaboard_icon{
padding:block;
padding:35px;
float:center;
margin-bottom:10px;
}
</style>
</head>
<body>
<div data-role="page" data-theme="f">
<div data-role="header" data-position="fixed">
<h1 style="white-space:pre-wrap">Smart Self Service</h1>
</div><!-- /header -->
<div data-role="content" data-theme="f">
<div id="center_content">
<div id="dashboard">
/********* Move to Notification.html**********/
<img id="dIcon_notification" src="images/mdpi/my_notification_new.png" class="dashaboard_icon" alt="" >
/*******************/
<img id="dIcon_request" src="images/mdpi/new_request_new.png" class="dashaboard_icon" alt="" >
<img id="dIcon_setting" src="images/mdpi/setting.png" class="dashaboard_icon" alt="" >
<img id="dIcon_exit" src="images/mdpi/exit.png" class="dashaboard_icon" alt="" >
</div>
</div>
</div><!-- /content -->
</div><!-- /page -->
</body>
</html>
and here is my Notification.html. which works perfect.
<!DOCTYPE html>
<html>
<head>
<title>My Page</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.css"/>
<script src="moment.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>
<script type="text/javascript">
function soap() {
Hr_Offer();
Hr_Vacancy();
function Hr_Offer() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("POST","http://180.211.97.41:7777/orabpel/default/XXNotificationListRetrieval/1.0",true);
/*** Soap Envelop ***/
var sr= "<?xml version='1.0' encoding='UTF-8'?>";
sr+="<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:wsu=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\">";
sr+="<soap:Header>";
sr+="<wsse:Security xmlns:wsse=\"http:\//docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns:env=\"http://schemas.xmlsoap.org/soap/envelope/\" soap:mustUnderstand=\"1\">";
sr+="<wsse:UsernameToken xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\">";
sr+="<wsse:Username>CBROWN<\/wsse:Username>";
sr+="<wsse:Password Type=\"http:\//docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-username-token-profile-1.0#PasswordText\">welcome<\/wsse:Password>";
sr+="<\/wsse:UsernameToken>";
sr+="<\/wsse:Security>";
sr+="<\/soap:Header>";
sr+="<soap:Body xmlns:ns1=\"http://xmlns.oracle.com/bpel/mobile/Notificationlist\">";
sr+="<ns1:NotificationlistRetrievalREQ>";
sr+="<ns1:NotificationlistType>HR_OFFER<\/ns1:NotificationlistType>";
sr+="<ns1:Status>TODO<\/ns1:Status>";
sr+="<\/ns1:NotificationlistRetrievalREQ>";
sr+="<\/soap:Body>";
sr+="<\/soap:Envelope>";
/*** Send the POST request ***/
xmlhttp.setRequestHeader("Accept", "application/xml", "text/xml", "\*/\*");
xmlhttp.setRequestHeader("SOAPAction", "process");
xmlhttp.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xmlhttp.send(sr);
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4) {
if (xmlhttp.status == 200) {
//alert('Response'+xmlhttp.responseXML);
var xmlResult=xmlhttp.responseXML;
/*** Pull out the quote and author elements ***/
var notificationId = xmlResult.getElementsByTagName('NotificationId');
var notificationContext = xmlResult.getElementsByTagName('NotificationContext');
var subject = xmlResult.getElementsByTagName('Subject');
var startDate = xmlResult.getElementsByTagName('BeginDate');
var dueDate = xmlResult.getElementsByTagName('DueDate');
/*** Create arrays***/
var arrNotificationId=new Array();
var arrNotificationContext=new Array();
var arrSubject=new Array();
var arrStartDate=new Array();
var arrDueDate=new Array();
/*** Loop through each quote elements yanking out the values and pushing them into the array ***/
for (i=0; i<notificationId.length; i++)
{
arrNotificationId.push(notificationId[i].childNodes[0].nodeValue);
arrNotificationContext.push(notificationContext[i].childNodes[0].nodeValue);
arrSubject.push(subject[i].childNodes[0].nodeValue);
//alert(startDate[i].childNodes[0].nodeValue);
var tempStart=startDate[i].childNodes[0].nodeValue;
var date_start = moment(tempStart).format("DD-MM-YYYY");
arrStartDate.push(date_start);
var tempDue=startDate[i].childNodes[0].nodeValue;
var date_due= moment(tempDue).format("DD-MM-YYYY");
arrDueDate.push(date_due);
}
/*** Display in Listview ***/
for (var s in arrNotificationId) {
//alert(arrSubject[s]);
$("#list_workList").append($("<li><a style=\"white-space:pre-wrap;\" href='" + arrSubject[s].link + "'>"+ arrSubject[s].toString() +"\n"+"Start Date :"+arrStartDate[s]+" "+"Due Date :"+arrDueDate[s]+ "</a></li>"));
}
$('#list_workList').listview('refresh');
}
else
{
alert('Error '+xmlhttp.status);
}
}
}
}
function Hr_Vacancy() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("POST","http://ip:port/orabpel/default/XXNotificationListRetrieval/1.0",true);
/*** Soap Envelop ***/
var sr= "<?xml version='1.0' encoding='UTF-8'?>";
sr+="<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:wsu=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\">";
sr+="<soap:Header>";
sr+="<wsse:Security xmlns:wsse=\"http:\//docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns:env=\"http://schemas.xmlsoap.org/soap/envelope/\" soap:mustUnderstand=\"1\">";
sr+="<wsse:UsernameToken xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" xmlns=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\">";
sr+="<wsse:Username>Hello<\/wsse:Username>";
sr+="<wsse:Password Type=\"http:\//docs.oasis-open.org\/wss\/2004\/01\/oasis-200401-wss-username-token-profile-1.0#PasswordText\">world<\/wsse:Password>";
sr+="<\/wsse:UsernameToken>";
sr+="<\/wsse:Security>";
sr+="<\/soap:Header>";
sr+="<soap:Body xmlns:ns1=\"http://xmlns.oracle.com/bpel/mobile/Notificationlist\">";
sr+="<ns1:NotificationlistRetrievalREQ>";
sr+="<ns1:NotificationlistType>HR_VACANCY<\/ns1:NotificationlistType>";
sr+="<ns1:Status>TODO<\/ns1:Status>";
sr+="<\/ns1:NotificationlistRetrievalREQ>";
sr+="<\/soap:Body>";
sr+="<\/soap:Envelope>";
/*** Send the POST request ***/
xmlhttp.setRequestHeader("Accept", "application/xml", "text/xml", "\*/\*");
xmlhttp.setRequestHeader("SOAPAction", "action_name");
xmlhttp.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xmlhttp.send(sr);
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4) {
if (xmlhttp.status == 200) {
//alert('Response'+xmlhttp.responseXML);
var xmlResult=xmlhttp.responseXML;
/*** Pull out the quote and author elements ***/
var notificationId = xmlResult.getElementsByTagName('NotificationId');
var notificationContext = xmlResult.getElementsByTagName('NotificationContext');
var subject = xmlResult.getElementsByTagName('Subject');
var startDate = xmlResult.getElementsByTagName('BeginDate');
var dueDate = xmlResult.getElementsByTagName('DueDate');
/*** Create arrays***/
var arrNotificationId=new Array();
var arrNotificationContext=new Array();
var arrSubject=new Array();
var arrStartDate=new Array();
var arrDueDate=new Array();
/*** Loop through each quote elements yanking out the values and pushing them into the array ***/
for (i=0; i<notificationId.length; i++)
{
arrNotificationId.push(notificationId[i].childNodes[0].nodeValue);
arrNotificationContext.push(notificationContext[i].childNodes[0].nodeValue);
arrSubject.push(subject[i].childNodes[0].nodeValue);
var tempStart=startDate[i].childNodes[0].nodeValue;
var date_start = moment(tempStart).format("DD-MM-YYYY");
arrStartDate.push(date_start);
var tempDue=startDate[i].childNodes[0].nodeValue;
var date_due= moment(tempDue).format("DD-MM-YYYY");
arrDueDate.push(date_due);
}
/*** Display in Listview ***/
for (var s in arrNotificationId) {
//alert(arrSubject[s]);
$("#list_workList").append($("<li><a style=\"white-space:pre-wrap;\" href='" + arrSubject[s].link + "'>"+ arrSubject[s].toString() +"\n"+"Start Date :"+arrStartDate[s]+" "+"Due Date :"+arrDueDate[s]+ "</a></li>"));
}
$('#list_workList').listview('refresh');
}
else
{
alert('Error '+xmlhttp.status);
}
}
}
}
}
</script>
</head>
<body onload="soap()">
<div data-role="page" data-theme="f">
<form name="Worklist" action="" method="post">
<div>
<div id="response" />
</div>
</form>
<div data-role="header" data-position="fixed">
<h1>Worklist</h1>
</div><!-- /header -->
<div data-role="content">
<ul data-role="listview" data-theme="c" id="list_workList">
</ul>
</div><!-- /content -->
</div><!-- /page -->
</body>
</html>
And strange thing is that It works in eclipce browser and in preview.

if you want to redirect page on Notification.html then add data-ajax="false" in your anchor tag
<a href="Notification.html" data-ajax="false">

How to Get a class with Jquery and perform a function

I am currently working on a project that deals with feed from a website.
I have successufully gotten the feed, but my challenge is getting the content and title of the feed when a user click on the feed link rather than taken the user to the feed site.
I have tried using different method to get the solution, but none works.
Below is my latest code (Jquery Mobile)
(function($){
$.fn.FeedEk=function(opt){
var def={FeedUrl:'', MaxCount:5, ShowDesc:true, ShowPubDate:true, ShowFullContent:true};
if(opt){
$.extend(def,opt)
}
var idd = $(this).attr('id');
if(def.FeedUrl==null || def.FeedUrl==''){
$('#'+idd).empty();
return;
}
var pubdate;
$('#'+idd).empty().append('<div style="text-align:center; margin: auto;"><img src="loader.gif" class="loader" /></div>');
$.ajax({
url:'http://ajax.googleapis.com/ajax/services/feed/load?v=1.0&num='+def.MaxCount+'&output=json&q='+encodeURIComponent(def.FeedUrl)+'&callback=?',
dataType:'json',
success:function(data){
$('#'+idd).empty();
$('#post').empty();
var output = '<ul data-role="listview" data-filter="true">';
$.each(data.responseData.feed.entries,function(i,entry){
var i =new Array(i);
for(j=0;j<=i;j++)
{
var id = j;
}
var title =new Array(entry.title);
var content =new Array(entry.content);
for(t=0;t<title.length;t++){
for(c=0;c<content.length;c++){$('#post').append(title[t]+'<br/>'+content[c])}
}
//while(id ==
//if(i == id
//var post = '<div><h3>'+entry.title+'</h3></div>';
//post += '<div>Post content'+entry.content+'</div>';
output += '<li>';
output += ''+entry.title+'';
/*if(def.ShowPubDate){
pubdate=new Date(feed[0].entry.publishedDate);
output += '<br/><span class="ItemDate">'+pubdate.toLocaleDateString()+'</span';
}
if(def.ShowDesc){
output += '<br/><span class="ItemDesc">'+feed[0].entry.contentSnippet+'</span>';
}*/
output += '</li>';});
console.log(data.responseData.feed.entries);
output += '</ul>';
$('#'+idd).html(output);
if($('.'+id).click() == true){
$('#post').empty();
var postTitle = title[id];
var postContent = content[id];
$('#post').append('<div><h3>'+postTitle+'</h3></div><div>'+postContent+'</div>');
}
}
})
}
})
(jQuery);
Below is the HTML code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>News on the GO!</title>
<link href="theme/news.min.css" rel="stylesheet" />
<link href="theme/jquery.mobile.structure-1.2.0.min.css" rel="stylesheet" />
<link href="theme/FeedEk.css" rel="stylesheet" type="text/css" />
<script type="application/javascript" src="js/jquery1.7.2-min.js" ></script>
<script type="application/javascript" src="js/jquery.mobile-1.2.0.min.js"></script>
<script type="application/javascript" src="js/FeedEk.js"></script>
<link href="theme/custom.css" rel="stylesheet" type="text/css" />
<script type="application/javascript" src='js/main.js'></script>
<script type="application/javascript">
$(document).ready(function() {
//latest
$("#ipaid").FeedEk({
FeedUrl : 'http://ipaidabribenaija.com/news?format=feed',
MaxCount : 7,
ShowDesc : true,
ShowPubDate:true,
ShowFullContent:true
});});
</script>
</head>
<body>
<div data-role="page" id="home">
<div data-role="header" data-position="fixed" data-theme="a">
<h2>Recent News</h2>
About
</div><!-- /header -->
<div class="imghome">
<img src="images/news.png" alt="news" width="300" height="200" />
</div>
<nav data-role="navbar">
<ul>
<li><a href="#latest" data-theme="a" data-transition="flip" >Local News</a></li></ul>
</nav>
<!--<div data-role="content" >
</div><!-- /content -->
<div data-role="footer" data-position="fixed" data-theme="a"></div><!-- /footer -->
</div><!-- /Page home -->
<div data-role="page" id="latest" data-title="Local News">
<div data-role="header" data-position="fixed" data-id="ipaid_header" data-theme="a">
<h2>Local News</h2>
Back
</div><!-- /header -->
<div data-role="content" >
<div id="ipaid">
</div>
</div><!-- /content -->
<div data-role="footer" data-position="fixed" data-id="ipaid_footer" data-theme="a">
<div data-role="navbar" data-theme="a">
<ul>
<li>Home</li>
<li>Politics</li>
<li>Sports</li>
<li>Business</li>
</ul>
</div><!-- /Footernavbar --></div><!-- /footer -->
</div><!-- /Page Latest --></body>
</html>

As far as I understood. You want to show each news feed on a separate page on your webpage, and prevent the link from opening a new window (leaving your webpage).
You could do the following, of course it needs some tuning and CSS styling, which can be done easily. The below code, prevents opening the link a new window, - using preventDefault() - it copies feed details (title, image, full article..etc) and appending them to a new page dynamically.
Each page has an auto-generated ID, in case you want to navigate between them using Swipe events or any other methods.
Working example
Code:
var pageid = 0;
$('#ipaid').on('click', 'a', function (e) {
pageid++;
e.preventDefault();
var clicked = $(this);
var root = clicked.closest('li');
var linkto = clicked.attr('href');
var title = clicked.text();
var date = clicked.parent('div').next('div').text();
var linkdiv = root.find('div.itemTitle');
var datediv = root.find('div.itemDate');
var contentdiv = root.find('div.itemContent');
var image = contentdiv.first('div').find('img').attr('src');
var article = '';
contentdiv.find('p').each(function () {
article += $(this).text();
});
var newPage = $("<div data-role=page id='page" + pageid + "'><div data-role=header><a data-iconpos='left' data-icon='back' href='#' data-role='button' data-rel='back'>Back</a><h1>" + title + "</h1></div><div data-role=content><p>Date:" + date + "</p><img src='" + image + "'></div><div class='article'><p>" + article + "</p></div></div></div");
newPage.appendTo($.mobile.pageContainer);
$.mobile.changePage('#page' + pageid);
});

I think you simple need jFeed. Sample code from the jFeed site:
jQuery.getFeed(options);
options:
* url: the feed URL (required).
* data: data to be sent to the server. See jQuery.ajax data property.
* success: a function to be called if the request succeeds.
The function gets passed one argument: the JFeed object.
Example:
jQuery.getFeed({
url: 'rss.xml',
success: function(feed) {
alert(feed.title);
}
});

We Keep Coding

JavaScript is the programming language of the Web.

"cannot read property length of null" - Google - javascript

I use bootstrap tabs and want to display a graph on a hidden tab and I get the same error as you When I display the graph on an active table it show's up perfectly. So I guess there is something linked to the DOM and hidden elements nothing to do with your data

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