I'm trying to achieve a highlight effect in my textarea, basically as a user types a sentence, a background color is being added, similar to this effect: http://jsbin.com/josatozeyi/1/edit (I know it's the resizing of textarea but is there any other way?)
<textarea class='animated'>With CSS transition.</textarea>
Any suggestions?
ADDITIONAL INFO
This is what I meant: http://prntscr.com/63xdi9
It's too complicated to me, however I found this, it might be useful:
highlightTextarea aim is to highlight portions of text into a textarea
or a input. It can highlight a set of words or a specific range.
http://mistic100.github.io/jquery-highlighttextarea/
Source: mistic100
Add a css rule that adds a background color to the textarea on focus.
input:focus {
background-color: yellow;
}
You can achieve the affect you want with contenteditable span element, and then applying a background color on focus: http://jsfiddle.net/13L9zudf/
$(document).ready(function(){
var defaultVal = "Type content here...";
$("div.textbox span").keyup(function(){
if($(this).html() == "")
{
$(this).html(defaultVal);
}
}).keydown(function(){
if($(this).html() == defaultVal)
{
$(this).html("");
}
});
});
div.textbox {
border: 1px #000 solid;
padding: .5em;
width: 30em;
height: 10em;
overflow-y: scroll;
}
div.textbox span {
line-height: 1.5em;
max-width:30em;
display: inline-block;
}
div.textbox span:focus {
background: #ff0;
border:0;
outline: 0;
}
div.textbox span:active {
border: 0;
outline: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="textbox">
<span contenteditable="true">Type content here...</span>
</div>
Related
I'm trying to learn javascript on my own, so I'm lacking a lot. I'm trying to change the color of multiples elements depending on the color in the css of another element.
I want the javascript to detect the <div id> with a specific color, and then change the id of another <div id2>
I tried this :
if (document.getElementById("name").css('color') == "#7a5cd4") {
document.getElementById('border').setAttribute('id', 'red');
document.getElementById('line').setAttribute('id', 'linered');
}
#name {
font-size: 35px;
color: #7a5cd4;
}
#border {
width: 25px;
height: 25px;
border: 3px solid black;
padding: 10px;
margin: 10px;
border-radius: 100%
}
#red {
width: 25px;
height: 25px;
border: 3px solid red;
padding: 10px;
margin: 10px;
border-radius: 100%
}
#line {
width: 200px;
height: 20px;
border: 1px solid black
}
#linered {
width: 200px;
height: 20px;
border: 1px solid red
}
<center>
<div id="name">name</div>
<div id="border"></div>
<div id="line"></div>
</center>
window.getComputedStyle is a function that takes an element as a parameter and returns an object containing all of the styles that are being used on that object. We can then call getPropertyValue on the result to get the value of a css property.
These functions return colours in the form rgb(r, g, b), so we will need to compare the value to rgb(122, 92, 212), instead of #7a5cd4.
HTMLElement.style, however, would not work in your case as it only gets the inline style, which is when you specify the style in your html, like <div style="color: red">.
Also, it is recommended to use classes for selecting elements, instead of ids, as you can place multiple of them on the same element.
const element = document.getElementById('name');
const styles = window.getComputedStyle(element);
if (styles.getPropertyValue('color') == 'rgb(122, 92, 212)') {
document.getElementById('border').setAttribute('id', 'red');
document.getElementById('line').setAttribute('id', 'linered');
}
In order to change the id of element you:
document.getElementById('oldid').id = 'newid'
This rest of this answer fit to inline style (element style="color: value") while #BenjaminDavies answer fit more to your original question:
In order to check/change color property you:
var divOldColor = document.getElementById('oldid').style.color; // get the color to variable
if (divOldColor == '#7a5cd4') { // do something }
Put it all together we get something like this:
if (document.getElementById('name').style.color == '#7a5cd4') {
document.getElementById('border').id = 'red';
document.getElementById('line').id = 'linered';
}
.css() is not a vanilla JS function. Use .style.cssPropertyName instead.
if (document.getElementById("name").style.color === "#7a5cd4") {
document.getElementById('border').setAttribute('id', 'red');
document.getElementById('line').setAttribute('id', 'linered');
}
If I have a textarea with some text on it, and the text has some line breaks on it, if I set my style to:
textarea {
height: auto;
overflow: hidden;
resize: none;
}
When I load the page, then the text area will only automatically set the height of the textarea until it finds the first line break, example:
For a textarea with this text:
This is an
example text
When the page is loaded, the textarea will be shown as:
This is an
Browser thinks line breaks are the end of the whole text. How do I fix it?
The text is still there if you use the arrow keys to move down, it's just that the textarea by default isn't tall enough to show all the text. You can use the rows attribute to define now many rows of text the textarea should have by default.
Alternatively, if you want more control you can use a div with the attribute contenteditable="true".
textarea {
height: auto;
overflow: hidden;
resize: none;
}
/*
* CSS for div with contenteditable="true"
*/
.textarea {
display: inline-block;
white-space: pre-wrap;
overflow-wrap: break-word;
border: 1px solid;
padding: 2px;
}
<textarea rows="3">This is an
example text
</textarea>
<div class="textarea" contenteditable="true">This is an
example text
</div>
To any one reading this, the solution I came up with is simple. With JQuery, on document ready:
$( document ).ready(function() {
var trueHeight = $( '#your_textarea' ).prop( 'scrollHeight' );
$( '#your_textarea' ).height( trueHeight );
});
Works like a charm.
.textarea {
height: auto;
overflow: hidden;
resize: none;
background-color: #000000;
color: #ffffff;
padding-left: 20px;
}
<div class="textarea"><p>This is an</p><p>example text</p></div>
Please check the above code.
You can use the rows attribute to set the height of your textarea.
<textarea rows='100'>this is an
example text</textarea>
Fiddle: https://jsfiddle.net/jvw7s1rz/2/
I've got problems to get text in the label to the bottom of the label.
I'm animating a falling text, the label does "seem" to fall as it should, but the text stays on top, it's not following the label downwards. Please check this jsfiddle out, press the button to see the problem. I have tried many different ways without coming up with a working solution.
http://jsfiddle.net/kaze72/jQ6Ua/
.uppgifter
{
vertical-align: text-bottom;
}
Seems not to help!
You can try
.uppgifter
{
display: table-cell;
vertical-align: bottom;
background-color: yellow;
}
jsFiddle
Updated jsFiddle so that .uppgifter's height in animate method matches #spelplan's height.
.uppgifter
{
padding: 580px 0 1px 230px;
}
You could just animate the padding-top:
$("#the_button").click(function () {
$(".uppgifter").animate({
'padding-top':"500px"
}, 4000, "linear", function() {});
});
try this:
$(document).ready(function() {
$("#the_button").click(function () {
$(".uppgifter").animate({
"height":"100px","padding-top":"500px"},
4000, "linear", function() {});
});
});
or just a suggestion, take a look at this :):
$(document).ready(function() {
$("#the_button").click(function () {
$(".uppgifter").animate({
"top":"500px"}, 4000, "linear", function() {});
});
});
combined with
.uppgifter
{
vertical-align: text-bottom;
position:relative;
background-color: yellow;
}
*
{
font-family: cursive;
}
.panel
{
position:relative;
border: 1px solid;
}
#spelplan
{
height: 600px;
}
.uppgifter
{
position:absolute;
vertical-align: text-bottom;
bottom:0;
background-color: yellow;
}
I simply added two transparent divs set with a 90% height that force the text down as the label height changes.
http://jsfiddle.net/jQ6Ua/15/
#div
{
height:90%;
width:200%
}
To vertically align a text in a container, multiple techniques can be used. However, most of them have additional script calculation at runtime (if the height of the text container is changing) which can mess with the business logic.
A hack can be used in your particular situation.
You can add an image container with empty src inside your text container with 100% height and 0 width set by css.
<label id="uppgift" class="uppgifter" style="display:inline-block;"><img scr=""/>Abc</label>
<label id="uppgift2" class="uppgifter" style="display:inline-block;"><img scr=""/>123</label>
//and css
.uppgifter img{
height:100%;
width:0;
}
Example
This way you would not have to write logic for additional added layers.
Here is the code in which i am having the problem-
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
p {
font-family: Tahoma;
line-height: 170%;
color: #000;
font-size: 15px;
padding: 5px 0px 5px 0px;
text-align: center;
}
#col1 {
//some propeties
}
#col1:hover ~ p {
color: #f00;
}
#col2 {
//some propeties
}
#col2:hover ~ p {
color: #ff0;
}
</style>
</head>
<body>
<div id="col1"><span>Hover to view and click to select this color.</span></div>
<div id="col2"><span>Hover to view and click to select this color.</span></div>
<p>This is some text.</p>
<script type="text/javascript">
var pElements = document.getElementsByTagName("p");
$('#col1').click(function(){
for(var i = 0; i < pElements.length; i++) {
pElements[i].style.color = "#f00";
}
});
$('#col2').click(function(){
for(var i = 0; i < pElements.length; i++) {
pElements[i].style.color = "#ff0";
}
});
</script>
</body>
</html>
What i actually want is that when i hover a color div, the color of text in p tag changes for only that time when the color div is hovered. When the color div is clicked the color of text should change permanently.
The problem with is that once i click on 1 of the color divs to finalize it for p tag, and then after that the other color is hovered the color change doesnt take place. The color permanently changes on click as it should happen.
When you set the p elements style with pElements[i].style.color = "#f00"; you are setting a more specific style then the one applied by your hover. In CSS, the most specific style get's applied to the element. The CSS hover class you've got defined will never be applied because it is not specific enough to overwrite the inline styles applied by your javascript code.
You could modify your CSS hover class to use the !important tag, this should allow you to apply the hover style even though it is not as specific as the inline style.
#col2:hover ~ p {
color: #ff0 !important;
}
If its not a problem using JQuery, I think is what you want: Live Example
HTML code snippet
<div id="col1"><span>Hover to view and click to select this color.</span></div>
<div id="col2"><span>Hover to view and click to select this color.</span></div>
<p>This is some text.</p>
CSS code snippet
p {
font-family: Tahoma;
line-height: 170%;
color: #000;
font-size: 15px;
padding: 5px 0px 5px 0px;
text-align: center;
}
#col1 {
//some propeties
}
#col1:hover ~ p {
color: #f00 !important;
}
#col2 {
//some propeties
}
#col2:hover ~ p {
color: #ff0 !important;
}
JS code snippet
$("#col1").click(function () {
$("p").css("color","#f00");
});
$("#col2").click(function () {
$("p").css("color","#ff0");
});
Hope it helps!
I've set up a simple jQuery UI ProgressBar:
<script type="text/javascript">
$(function() {
$("#progressbar").progressbar({
value: 35
});
});
</script>
<div id="progressbar"> </div>
Among other things, I'd like to display some text in the progress-bar (for starters, I'd just use the "value").
I can't seem to get this to work.
Bonus Question: How do I format the displayed text (e.g. color, alignment)?
Instead of introducing another element (span) and a new style, leverage what is already there like this:
var myPer = 35;
$("#progressbar")
.progressbar({ value: myPer })
.children('.ui-progressbar-value')
.html(myPer.toPrecision(3) + '%')
.css("display", "block");
The css("display", "block") is to handle the case where the value is 0 (jQuery UI sets a display: none on the element when the value is 0).
If you look at the source of The demo, you'll notice that a <div class="ui-progressbar-value"> is added. You can simply override this class in your own CSS, like:
.ui-progressbar-value {
font-size: 13px;
font-weight: normal;
line-height: 18px;
padding-left: 10px;
}
The way I did it was:
<div class="progressbar"><span style="position:absolute; margin-left:10px; margin-top:2px>45% or whatever text you want to put in here</span></div>
You can adjust the margin-top and margin-left so that the text is in the center of the progress bar.
Then you apply the progressbar plugin for the elements which have class progressbar in the javascript section of the page
Hope this help
After fiddling around with some solutions, based on the answers here, I've ended up with this one:
Html:
<div id="progress"><span class="caption">Loading...please wait</span></div>
JS:
$("#progress").children('span.caption').html(percentage + '%');
(To be called inside the function that updates the progressbar value)
CSS:
#progress {
height: 18px;
}
#progress .ui-progressbar {
position: relative;
}
#progress .ui-progressbar-value {
margin-top: -20px;
}
#progress span.caption {
display: block;
position: static;
text-align: center;
}
Advantages:
Caption is centered with no harcoded positioning (necessary if caption width changes dinamically)
No JS strange manipulation
Simple and minimal CSS
This solution allows for a flexible width based on the text as well as centering the text, styling the text, etc. Works in Chrome, FF, IE8, and IE8 in compatibility mode. Didn't test IE6.
Html:
<div class="progress"><span>70%</span></div>
Script:
$(".progress").each(function() {
$(this).progressbar({
value: 70
}).children("span").appendTo(this);
});
CSS:
.progress.ui-progressbar {position:relative;height:2em;}
.progress span {position:static;margin-top:-2em;text-align:center;display:block;line-height:2em;padding-left:10px;padding-right:10px;}
.progress[aria-valuenow="0"] span {margin-top:0px;}
Working sample: http://jsfiddle.net/hasYK/
I used this:
<div id="progressbar" style="margin: 0px 0px 16px 0px; "><span style="position: absolute;text-align: center;width: 269px;margin: 7px 0 0 0; ">My %</span></div>
<style>
#progress {
height: 18px;
}
#progress .ui-progressbar {
position: relative;
}
#progress .ui-progressbar-value {
margin-top: -20px;
}
#progress span.caption {
display: block;
position: static;
text-align: center;
}
</style>
</head>
<body>
test
<div id="progressbar"></div>
<br>
test2
<div id="progressbar2"></div>
<script>
$("#progressbar").progressbar({
max : 1024,
value : 10
});
$("#progressbar2").progressbar({
value : 50
});
$(document).ready(function() {
$("#progressbar ").children('div.ui-progressbar-value').html('10');
$("#progressbar2 ").children('div.ui-progressbar-value').html('50%');
});
</script>
</body>