Adjustable and multi-line label in HTML5 - javascript

I am trying to write a canvas graph application by using HTML5 and JavaScript. The main element in this app is a box that the user is able to write a long text in it and the size of the box should adjust while writing the text. I realized that the best way is to use the textarea tag while the user wants to write in it and when the user loses the focus(blur event) on the textarea it will change to a label with the same value in the textarea. You can see the related code below:
<!DOCTYPE html public "-//w3c//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TB/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Editable Label</title>
<!--<link rel="stylesheet" href="box.css">-->
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#txt').blur(function () {
if ($('#txt').val().trim() != '') {
$('#txt').hide();
$('#lbl').html($('#txt').val());
$('#txt').val('');
}
});
$('#lbl').click(function () {
if ($('#lbl').html().trim() != '') {
$('#txt').show();
$('#txt').val($('#lbl').html());
$('#lbl').html('');
}
});
});
</script>
</head>
<body>
<div id="container" align="center" style="width:1300px; height:700px; position:relative;">
<canvas id="myCanvas" width="1300px" height="700px" style="border: 1px solid #323232;" ></canvas>
<span id="lbl" style="color: #ff0000; font-size: 14px; font-weight: bold; position:absolute; top:200px; left:170px;"></span>
<textarea id="txt" type="text" style="position:absolute; top:200px; left:170px;"></textarea>
</div>
</body>
</html>
I could make the textbox appear in multi-line by using textarea tag instead of the input tag but the problem is that I don't know how to make the label to appear in multi-line. I searched a lot and already used white-space:normal; and display:inline-block; and width: 20px; in styling the label but it didn't work. I am wondering if I need to adjust the label size (width and height) by using Jquery. If yes, how exactly do I have to do that?
Note that since the user is entering unknown amount of words I cannot use line breaking tags.
Any help will be highly appreciated.

I think what you want is
overflow:hidden; or overflow:visible;
so:
<textarea id="txt" type="text" style="position:absolute; top:200px; left:170px; overflow:hidden;"></textarea>
It would be easier to read your code if you used CSS though.
I'm not really sure what you're trying to do then, width:220px; made the text break for me. This also worked, and I believe it better matches what I think you're trying to do:
#lbl{
max-width:220px;
height:auto;
}

Related

Image is not capturing correctly in dropdown icon using html2canvas

I m having following code to convert image using html2canvas. It is working fine but the select tag icon (down arrow) is not coming when capture the image
<!DOCTYPE html>
<html>
<head>
<title>html2canvas</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.min.js"></script>
<style>
button{
display:block;
height:20px;
margin-top:10px;
margin-bottom:10px;
}
.icon-diamond:before {
content: "\e943";
}
</style>
</head>
<body>
<div id="target">
<div style="position:relative;" class="noteclasscontainer" >
<span style="font-size: 60px;" class="glyphicon">
<span style="color:white;font-size: 21px; position: absolute; top: 16px;left:10px;">dd</span>
</span>
</div>
<div style="position:relative;" class="noteclasscontainer">
<select>
<option>1</option>
<option>1</option>
</select>
</div>
</div>
<button onclick="takeScreenShot()">to image</button>
<script>
window.takeScreenShot = function() {
html2canvas(document.getElementById("target"), {
onrendered: function (canvas) {
document.body.appendChild(canvas);
},
width:320,
height:220
});
}
</script>
</body>
</html>
Image is capturing correctly but only the select icon is not coming properly.how to fix this issue ?
This is part of browsers default CSS, everything is not accessible to html2canvas, and it should not be (possible leak of privacy info on some OS).
Maybe this exact one could be tweaked for chrome, since chrome does expose some of its shadow selectors, but I don't even know if it is in the list, and anyway, since non-standards these selectors could change at any time in the future, and here is how it looks like on my FF :
So the best for you, is to create the dropdown entirely from scratch. This way all UAs will show the same, and html2canvas will be able to "snapshot" it.

HTML background box for block of text

Completely new to HTML, I need an html file which does the above:
Some background color for the whole page.
In the center of the page, a block of text within a box of white background color.
Directly under (outside of) the white box, a small line of text at the center of page.
There is probably a better way to do it, but this is my way:
<!DOCTYPE html>
<html>
<head>
<style>
body {
background-color:color here;
}
#example-name {
background-color:white;
}
#example-2 {
text-align:center;
}
</style>
</head>
<body>
<div id='example-name' style="margin: 0 auto">
example content
</div>
<div id='example-2'>
<p>example text</p>
</div>
</body>
<html>
<html>
<body style="background-color:tan">
<p style="margin-left: 30%;margin-right: 30%; background-color: white; padding: 20px 20px 20px 20px;">
Hi.<br>
Thanks for using Mailgun! Please confirm your email address by clicking below!<br>
I hope this answers your question!
</p>
</body>
</html>
Use the css elements margin, background-color, and padding.

after giving the transition-duration property i cant able to use the jQuery functions properly

jQuery functions like .hide(),.fadeIn(),.fadeOut() are not properly working after giving the transition duration property.
example : hide(2000) then after 2 second it is hiding but the animation is not getting applied and it is the common problem i am having with all the jQuery functions
if i delete the transition-duration then all working with animation. Why this is happening? Someone explain it to me and also give solution to solve this problem
HTML
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title> Opening Sequence </title>
<link rel="stylesheet" href="open.css">
<script src="jquery.js"></script>
<script src="open.js"></script>
</head>
<body>
<br><br>
<section id="container">
<p id="content"> This is cool </p>
</section>
</body>
</html>
CSS
#charset "utf-8";
/* CSS Document */
#container
{
width:600px;
height:600px;
margin:0 auto;
border:1px solid red;
line-height:500px;
}
#content
{
font-weight:bold;
font-family:Verdana, Geneva, sans-serif;
font-size:20px;
text-align:center;
transition-duration:3s;
}
JS
$(document).ready(function()
{
//alert("Application has been started");
$i=0;
var ob=$('#content');
ob.slideUp(4000);
//ob.hide(2000);
});
problem is after 4 seconds it is hiding but not sliding up, in the sense not animating like hiding from the down to the top

Trying to make animated nav bar in Jquery

Im attempting to make a navigation bar with Jquery. the idea is that you click on the navigation button and several links(in the form of divs) will slide out. However, i am unable to get the initial click action to work. Currently im just trying to move the #Home button to the left 100px after you click the #clickme button.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script src = "jquery-2.0.1.js"></script>
<script>
$("#clickme").click(function(){
$("#Home").animate({left: 100} , "fast");
});
</script>
<style type="text/css">
#Nav {
position:absolute;
width:200px;
height:115px;
z-index:1;
top: 268px;
left: 530px;
background-color: blue;
}
.Button{
position:absolute;
width:200px;
height:115px;
z-index:0;
background-color:#693;
}
</style>
</head>
<body>
<div id="Nav">
<div id="Home" Class = "Button">Home</div>
<div id="About" Class = "Button">About The Internship</div>
<div id="Meet" Class = "Button">Meet the Interns</div>
<div id="Request" Class = "Button">Request an Intern</div>
<div id="clickme" Class = "Button">Navigation</div>
</div>
</body>
</html>
You have to wait 'till your dom is ready + you've the wrong selector.
.ID is for Classes (css)
#ID is for actual ID's
$(function(){
$("#clickme").click(function(){
$("#Home").animate({left: 100} ,"fast");
});
})
This should work..
In addition to stackErr's answer:
'fast' should be passed as a string.
fiddle: http://jsfiddle.net/jonigiuro/xt57a/
$("#clickme").click(function(){
$("#Home").animate({left: 100} ,'fast');
}
the problem seems to be with the selector. id must be used with # not with .
try
$("#clickme").click(function(){
$("#Home").animate({left: 100} ,fast);
});
you can place this code at the bottom before </body> using scripts at the bottom of the page makes page faster & executes when dom is ready. otherwise wrap the codde with $(function())
Your id selector is incorrect.
Your code should be:
$("#clickme").click(function(){
$("#Home").animate({left: 100} ,'fast');
});
this shouldnt matter but script tag should have the type attribute since you are not using HTML5:
<script type="text/javascript" src="jquery-2.0.1.js"></script>

Javascript Resize

I have very little javascript knowledge, so it seems a very basic question, but could not find a way to do that.
I have a 1024*768 fixed area like this:
alt text http://img260.imageshack.us/img260/4618/myimage.png
There will be a javascript button on the right side of the "Section A". When I click that button, Section A will be automatically resized and it will be something like this:
alt text http://img705.imageshack.us/img705/92/myimage1.png
So, Section A will overlap with Section B, and it will be same size with Section C (And i know the size of Section C). How can I automatically resize that area with overlap function? I am looking a plugin for Jquery, but could not find that. There is a resizable function in Jquery, but it does not help me. Could you help me out? (If you just give me a link that is related with this feature, that would be enough too)
edit: For extra note, Section A is a flash object, so it will enlarge and overlap with Section B when I click to that button.
Thanks,
The jQuery hide() effect would be useful here. If both Section A & Section B have a float: left Section A should expand to fill the area when Section B is hidden.
http://docs.jquery.com/Effects/hide
Have you tried the animate function?
http://docs.jquery.com/Effects/animate
Could have Section B hide with a slide or have Section A overlap it like you mentioned just need to set the positioning, z-index, etc. properly.
something like this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Terminal</title>
<script src="/js/jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('#but').click(function (e) {
$('#a').removeClass('big').addClass('normal');
$('#b').hide();
e.preventDefault();
});
});
</script>
<style type="text/css">
.height {
height: 100px;
border: 1px solid black;
}
.big {
width: 198px;
float: left;
}
.small {
width: 100px;
float: left;
}
.normal {
width: 300px;
clear: both;
}
</style>
</head>
<body>
<div>button</div>
<div id="a" class="height big">a</div>
<div id="b" class="height small">b</div>
<div class="height normal">c</div>
</body>
</html>

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