Develop Reference

Ziggeo meta-profiles parameter for recording video in javascript

I've been playing around with the ziggeo API and I'm trying to attach some events for a recording. as far as I can tell, the best way to do this is to create a div with a specific id and then create the ziggeo recorder using attribs, etc.
<div id="video_section"></div>
<script>
ZiggeoApi.Events.on("system_ready", function() {
var recorder = new ZiggeoApi.V2.Recorder({
element: document.getElementById("video_section"),
attrs: {
width: 320,
height: 240,
theme: "modern",
themecolor: "red",
}
});
recorder.activate();
});
</script>
yet, unlike the use of the simple form <ziggeorecorder></ziggeorecorder> which allows the passing of a meta-profile parameter,
<ziggeorecorder ziggeo-theme='minimalist' ziggeo-themecolor="red" ziggeo-meta-profile='META_PROFILE_TOKEN'></ziggeorecorder>
when adding meta-profile in the attribs, initializing the recorder (as indicated in the API reference) results in meta-profile being misinterpreted. when changing the attribute to meta_profile, nothing gets processed.
attrs: {
width: 320,
height: 240,
theme: "modern",
themecolor: "red",
meta_profile: 'META PROFILE ID',
}
beyond that, when trying to attach the event.
<script>
var element = document.getElementById('video_section');
var embedding = ZiggeoApi.V2.Recorder.findByElement(element);
embedding.on("submitted", function(data) {
alert("Video " + data.video.token + " was submitted!");
});
</script>
I keep getting an error:
Uncaught TypeError: Cannot read property 'on' of null
does anyone have a good grip on how to do this properly? - create a recorder, set a meta-profile, and attach an event (either submission or completion of processing) to redirect back to a root path.

I think you need to use meta-profile instead of meta_profile. You may try this code:
<div id="video_section"></div>
<script>
ZiggeoApi.Events.on("system_ready", function() {
var recorder = new ZiggeoApi.V2.Recorder({
element: document.getElementById("video_section"),
attrs: {
width: 320,
height: 240,
theme: "modern",
themecolor: "red",
"meta-profile":"META PROFILE ID"
}
});
recorder.activate();
recorder.on("verified", function(data){
console.log(data);
});
});
</script>
Javascript doesn't allow using - outside quote when defining object property (CMIIW).

trying to modify the js function so that it gives the same output as it was when called the other js function

I am exporting the content on the webpage to the PDF file, for this i have used jsPDF API and i could able to get it work but now i want to use html2PDF as it resolves few issues which were faced when using jsPDF API.
I have written the function $scope.exportUsingJSPDF which is called when the button Export Using JSPDF is clicked. Similarly i want to implement the function $scope.exportUsingHTML2PDF which uses html2PDF API but could not succeed. Any inputs on how to modify $scope.exportUsingHTML2PDF so that it iterates the divs and shows the div content as shown when invoked using $scope.exportUsingJSPDF by clicking Export using JSPDF API.
Complete online example: https://plnkr.co/edit/454HUFF3rmLlkXLCQkbx?p=preview
js code:
//trying to implement the below function same as $scope.exportUsingJSPDF, so
// that when user click on Export using HTML2PDF button, it exports the content to the PDF and generaes the PDF.
$scope.exportUsingHTML2PDF = function(){
var pdf = new jsPDF('l', 'pt', 'a4');
var pdfName = 'test.pdf';
pdf.canvas.height = 72 * 11;
pdf.canvas.width = 72 * 8.5;
html2pdf(document.getElementByClassName("myDivClass"), pdf, function(pdf){
pdf.save(pdfName);
});
}
$scope.exportUsingJSPDF = function() {
var pdf = new jsPDF('p','pt','a4');
var pdfName = 'test.pdf';
var options = { pagesplit: true};
var $divs = $('.myDivClass') //jQuery object of all the myDivClass divs
var numRecursionsNeeded = $divs.length -1; //the number of times we need to call addHtml (once per div)
var currentRecursion=0;
//Found a trick for using addHtml more than once per pdf. Call addHtml in the callback function of addHtml recursively.
function recursiveAddHtmlAndSave(currentRecursion, totalRecursions){
//Once we have done all the divs save the pdf
if(currentRecursion==totalRecursions){
pdf.save(pdfName);
}else{
currentRecursion++;
pdf.addPage();
//$('.myDivClass')[currentRecursion] selects one of the divs out of the jquery collection as a html element
//addHtml requires an html element. Not a string like fromHtml.
pdf.fromHTML($('.myDivClass')[currentRecursion], 15, 20, options, function(){
console.log(currentRecursion);
recursiveAddHtmlAndSave(currentRecursion, totalRecursions)
});
}
}
pdf.fromHTML($('.myDivClass')[currentRecursion], 15, 20, options, function(){
recursiveAddHtmlAndSave(currentRecursion, numRecursionsNeeded);
});
}
PS: I was trying to modify $scope.exportUsingHTML2PDF so that it gives the same output as generated when clicked on "Export using JSPDF" button which calls the function $scope.exportUsingJSPDF.

The problem lies with your function using exportUsingHTML2PDF, the error is that you need to pass in the html to the function of html2PDF. Manage the page css on the basis of your need.
EDIT: You have wrong library. Please check html2pdf.js library within the plunker
Working plunker: html2pdf
$scope.exportUsingHTML2PDF = function() {
var element = document.getElementById('element-to-print');
html2pdf(element, {
margin: 1,
filename: 'myfile.pdf',
image: {
type: 'jpeg',
quality: 0.98
},
html2canvas: {
dpi: 192,
letterRendering: true
},
jsPDF: {
unit: 'in',
format: 'letter',
orientation: 'portrait'
}
});
}

With JSPDF and HTML2PDF, you have to get used to two fundamentally different coding styles:
JSPDF: imperative (javascript statements)
HTML2PDF: declarative (directives embedded in HTML)
So for page breaks:
JSPDF: pdf.addPage();
HTML2PDF: <div class="html2pdf__page-break"></div>
That should work, however HTML2PDF is buggy and gives a "Supplied data is not a JPEG" error when <div class="html2pdf__page-break"></div> is included (at least it does so for me, in Plunkr), despite being totally what the documentation tells us to do.
I haven't got time to debug it. You'll need to do some research. Someone will have posted a solution somewhere on the web.

How do I encode HTML characters within Javascript functions?

to all Javascript experts this question might be just basics. I'm using jQuery and I am working on a tooltip created with jQuery.flot.
The following is a part of my javascript function within an html file and this is exactly what I need to have the tooltip div to be rendered correctly:
$('<div id="tooltip">' + contents + '</div>').css( {
Because the div is not shown I used Firebug to look for the reason and the line of code from above shows the special characters < and > encoded as html entities < and > as you can see here:
$('<div id="tooltip">' + contents + '</div>').css( {
I was searching several online sources for a solution and tried things like .replace(/lt;/g,'<') or .html().text() and it took me more than three hours but nothing was helpful.
I works fine on localhost.
Full Source Code:
<script language="javascript" type="text/javascript" src="../JavaScript/flot/jquery.js"></script>
<script language="javascript" type="text/javascript" src="../JavaScript/flot/jquery.flot.js"></script>
<script language="javascript" type="text/javascript" src="../JavaScript/flot/jquery.flot.categories.js"></script>
<![CDATA[
<script type="text/javascript">
$(function () {
var data = [ ]]>{e1Array}<![CDATA[ ];
$.plot($("#placeholder1"), [ data ], {
series: {
bars: {
show: true,
barWidth: 1,
align: "center"
}
},
grid: {
hoverable: true,
clickable: true
},
xaxis: {
mode: "categories",
tickLength: 0
},
yaxis: {
min: 0,
max: 1,
ticks: 0
}
} );
});
var previousPoint = null;
$("#placeholder1").bind("plothover", function (event, pos, item) {
if (item) {
if (previousPoint != item.datapoint) {
previousPoint = item.datapoint;
$("#tooltip1").remove();
showTooltip(item.pageX, item.screenY, item.series.data[item.dataIndex][0] + ': ' + item.series.data[item.dataIndex][1] + ' Einträge');
}
} else {
$("#tooltip1").remove();
previousPoint = null;
}
});
function showTooltip(x, y, contents) {
$('<div id="tooltip">' + contents + '</div>').css( {
position: 'absolute',
display: 'none',
top: 100,
left: x,
border: '1px solid #fdd',
padding: '2px',
'background-color': '#fee',
opacity: 0.80
}).appendTo("#e1-container").fadeIn(0);
}
</script>
]]>
<div class="e1-container" id="e1-container">
<div id="placeholder1" class="e1"></div>
</div>

<![CDATA[
<script type="text/javascript">
This seems to be your problem, or at least the reason why FireBug does show html entities in your code. If you want to use cdata at all, you should place it inside of the <script> tags.
On why the tooltip is not shown at all, I can only guess, but for text content I'd recommend to use
$('<div id="tooltip"></div>').text(contents)
instead of using it as a html string.

You use appendTo(), which is fine.
You append the node only when the plothover flot event is fired.
This is correct, too.
So your code looks fine, you should probably look into this:
Jquery Flot "plothover" event not working
EDIT: You also can put the JS <script> after the HTML.

Do not directly add the contents inside the selector.
1) Create your DOM : var k = $('<div id="tooltip"></div>');
2) Fill your DOM :
// Add after
k.append(contents);
// Replace
k.html(contents);
// Replace and the content is just some text
k.text(contents);
3) Set the CSS : k.css({ ... })
4) Add the DOM to your page k.appendTo('#container');. You can also use $('#container').html(k); to replace the container contents and avoid to have a duplicate
In short :
var k = $('<div id="tooltip"></div>')
.append(contents)
.css({})
.appendTo('#container');
NOTE: The best way is to already create your tooltip div and just fill the elements to avoid to create two div with same ID, ... If you are afraid it perturbs the page, add display : none; to the CSS before to edit it, then change the classes when you edit it.
You will need to create div on 2 conditions :
The pages is created on load with variable number of components
You want to dynamically load CSS or JS.

document type does not allow element "h4" here

I can't find out what the problem is with this line of code:
…sc', '<h4 class="vtem_news_show_title">Nesmet El Bouhaira</h4>');$('#vtem1 img…
This is the error message I receive:
**document type does not allow element "h4" here**
What do I need to change?
This is the whole <script>:
<script type="text/javascript">
var vtemnewsshow = jQuery.noConflict();
(function($) {
$(document).ready(function() {
$('#vtem0 img').data('ad-desc', '<h4>Nesmet El Bouhaira</h4>');
$('#vtem1 img').data('ad-desc', '<h4>Tunis Mall 1</h4>');
$('#vtemnewsshowid89-newsshow').adGallery({
loader_image: 'http://laselection-immobiliere.com/modules/mod_vtem_news_show/images/loading.gif',
update_window_hash: false,
start_at_index: 0,
bottompos: 20,
thumb_opacity: 0.8,
animation_speed: 400,
width: '970',
height: '340',
display_next_and_prev: 1,
display_back_and_forward: 0,
slideshow: {
autostart: 1,
speed: 5000
},
effect: 'slide-hori', // or 'slide-vert', 'fade', or 'resize', 'none'
enable_keyboard_move: 1,
link_target: '_self'
});
});
})(jQuery);
</script>

If your Javascript contains HTML tags, a validator considers these part of the document, unless you prefix your code like this:
<script type="text/javascript">
//<![CDATA[
jQuery.data(element, '<h1>Hello, world.</h1>');
//]]>
</script>
You might have come across another way to resolve this issue:
<script type="text/javascript">
jQuery.data(element, '<' + 'h1>Hello, world.<' + '/h1>');
</script>
This basically chops the string to "hide" the tags from a validator. It makes code harder to read and I'd never prefer this "hack" to the CDATA solution.
Please have a look at this question, which is rather old but has a lot of answers.

Call jQuery function in a loop with different parameters

I am trying to create multiple carousels in one page following this example.
I am creating my carousels in a foreach loop, and I assign to each carousel the names c0, c1, c2, etc. (Each carousel is a <div>)
Now, in order to run the script according to the example, I should run in on each carousel separately.
For example:
<script type="text/javascript">
$(document).ready(function() {
$('#c0').jsCarousel({ onthumbnailclick: function(src) { alert(src); }, autoscroll: true, masked: false, itemstodisplay: 3, orientation: 'v' });
$('#c1').jsCarousel({ onthumbnailclick: function(src) { alert(src); }, autoscroll: false, masked: false, itemstodisplay: 5, orientation: 'h' });
$('#c2').jsCarousel({ onthumbnailclick: function(src) { alert(src); }, autoscroll: true, masked: true, itemstodisplay: 5, orientation: 'h' });
});
</script>
Since my carousels are created in a foreach loop, I cannot know how many of them I will have, so I tried to call the function in a for loop:
for (int i = 0; i < counter; i++)
{
string cNum = "#c" + i.ToString();%>
<script type="text/javascript">
$(document).ready(function() {
$(cNum).jsCarousel({ onthumbnailclick: function(src) { alert(src); }, autoscroll: true });
});
</script>
<%} %>
I checked, and the cNum values are okay, it gets the values #c0, #c1, etc. but it can't recognize it as an equivalent to '#c0' etc. that were there initially.
How can I insert dynamic carousel names into the function?

Instead of doing that, just give each div a class. Like this:
<div class="someClassThatIKnowIsACarousel">
Then you don't need a loop:
$(".someClassThatIKnowIsACarousel").jsCarousel({ onthumbnailclick: function(src) { alert(src); }, autoscroll: true });

The problem in your code is that cNum inside your dynamically generated JavaScript section isn't interpreted as an ASP variable. You could fix that with something like $('<% cNum %>') (also note the JavaScript quotes, without get you would get $(#c0), which is erroneous).
However, your approach is wrong, please avoid the best you can mixing server/client code like that.
As aquinas already pointed out, the best solution is to add a class to the divs:
HTML:
<div class="carousel">
JavaScript:
$('div.carousel').jsCarousel({ ... });