I'm practicing event handlers but I cant seem to figure out how to make similar mouseHover effect using javascript on the website of lol.garena.ph (home,news,guides etc. The nav buttons). Help me out please.
Basically, you will have to make an .hover class :
.hover {
position: relative;
top: -5px; /* this will raise the element */
}
Then add the class to your element (with id el) with javascript :
<li onmouseover="this.className='hover';" onmouseout="this.className='';">Home</li>
Of course, this is just the principle. See a working example : http://jsfiddle.net/KbcPb/
But you could do it just with css : http://jsfiddle.net/42jLY/
I'm using this for my task. It'll make it look like a CSS hover effect.
in the HTML code :
<h1 id="titleRegister" onmouseover="changeToBlueColor()" onmouseout="changeToBlackColor()"> Register </h1>
and for the function in javascript :
<script>
function changeToBlueColor(){
document.getElementById("titleRegister").style.color = "blue";
}
function changeToBlackColor(){
document.getElementById("titleRegister").style.color = "black";
}
</script>
Related
We are adding custombuttons to our fullcalendar like below.
Is there a way to change the background and foreground color of the button?
And is there a way to set padding or margins to the custom buttons?
var calendar = new Calendar(calendarEl, {
customButtons: {
myCustomButton: {
text: 'custom!',
click: function() {
alert('clicked the custom button!');
}
}
},
headerToolbar: {
left: 'prev,next today myCustomButton',
center: 'title',
right: 'dayGridMonth,timeGridWeek,timeGridDay'
}
});
Yes, you can set any properties you like using CSS.
On inspecting how fullCalendar renders the buttons in HTML, I noticed it gives each one a class according to the property name of the button.
For example, if - per your sample code - you call the button myCustomButton then fullCalendar will give the rendered <button a CSS class called fc-myCustomButton-button. This means you can specify any rules you like for that class, e.g.:
.fc-myCustomButton-button
{
background-color: red !important;
}
(You need the !important so that fullCalendar's other CSS rules don't override it.)
Demo: https://codepen.io/ADyson82/pen/WNJqXLM
I have a textarea generated with the bellow js code, I also have a button that creates additional text areas when clicked, I NEED to make each text area draggable, Ussually because the "id" is "myForm" it should become draggable using jquery $('#myForm') but it does not work, I have try all forms but it does not work. I also have check similar questions but not luck... I will appreciate if some one can help me out. in the folder I have the Html, The css and all jquery libraries working Ok.
I check with the alert box.
Note: all I need is a textarea with a button to add as many additional text areas and this areas to be draggable, the code to generate this text areas can be any code. In case there is a easier way to accomplish the same thing... Thank you in advance.
function myFunction() {
var x = document.createElement("FORM");
x.setAttribute("id", "myForm");
document.body.appendChild(x);
var y = document.createElement("TEXTAREA");
document.getElementById("myForm").appendChild(y);
}
Is HTML5 Drag and Drop what you are looking for?
All you need to do is define draggable=true in your element and code the relevant ondragstart and ondragend logic. This works with both vanilla JS and frameworks like React.
Made for you kindly however dosn't work in this editor
var new_offset = {top:30, left:40};
var new_width = 200;
var new_height = 150;
var newElement$ = $('<div><textarea id="textarea"></textarea></div>')
.width(new_width)
.height(new_height)
.draggable({
cancel: "text",
start: function (){
$('#textarea').focus();
},
stop: function (){
$('#textarea').focus();
}
})
.resizable()
.css({
'position' : 'absolute',
'background-color' : 'gray',
'border-color' : 'black',
'border-width' : '1px',
'border-style' : 'solid'
})
.offset(new_offset)
.appendTo('body');
textarea {
height:100%;
background-color:whit;
width:100%;
resize:none; border:none;
padding:0px; margin:0px;
}
div { padding:0px; }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.js"></script>
I hacked it and piggy tailed to a span element this way the span element is easy to make draggable with jquery, The textarea is not draggable but it has to follow the span element THUS is draggable.
The span element has the class= "drag",then I used the jquery $('.drag').draggable and that made the whole trick. Dirty code BUT it works 100% the way I needed.
I have a text + image side by side, and I want a function where the user can click on the image to make it bigger. I'm new to HTML/CSS so I was wondering how I can approach this. Thanks! (demo -> https://jsfiddle.net/DTcHh/6634/)
Is there any way to do this with pure HTML/CSS and no javascript?
The ones I found have been telling me to use javascript such as:
<script type="text/javascript">
function showImage(imgName) {
document.getElementById('largeImg').src = imgName;
showLargeImagePanel();
unselectAll();
}
function showLargeImagePanel() {
document.getElementById('largeImgPanel').style.visibility = 'visible';
}
function unselectAll() {
if(document.selection) document.selection.empty();
if(window.getSelection) window.getSelection().removeAllRanges();
}
function hideMe(obj) {
obj.style.visibility = 'hidden';
}
</script>
Is there a simpler way to do this in HTML/CSS?
You could use a CSS pseudo-class to change the styling when, for example, the mouse is over the image:
img:hover {
width: 300px;
height: 300px;
}
Generally, though, to add interactivity to your web pages, you will have to become acquainted with JavaScript. I don't know of any way to toggle a state (e.g. "zoomed-in") without the use of JavaScript.
You can think of the HTML as defining the content, the CSS as defining how it looks, and the JavaScript as defining how it behaves.
I'm using <a href> element along with :target css selector to show a <div> which by default is set to display:none. Problem is, that when I click on the link to show that <div>, it is automatically scrolling down my site towards that <div>.
Is there a way to stop the screen movement?
Unfortunately I am not yet proficient in anything besides CSS and HTML.
You can use event.preventDefault() to avoid this. Something like this:
$('a.yourclass').click(function(e)
{
//your code
e.preventDefault();
});
OR:
link
in the link enter:
Link here
You'll need JS anyway:
// (in jQuery)
$el.on('click', function(e) {
// find current scroll position
var pos = document.body.scrollTop || document.documentElement.scrollTop;
// let normal action propagate etc
// in the next available frame (async, hence setTimeout), reset scroll posiion
setTimeout(function() {
window.scrollTo(0, pos);
}, 1);
})
I don't know if this will flicker the screen. It might. It's a horrible hack either way.
In my Chrome, there's no flicker: http://jsfiddle.net/rudiedirkx/LEwNd/1/show/
There are two ways to tell the browser we don't want it to act:
The main way is to use the event object. There's a method
event.preventDefault().
If the handler is assigned using on (not by
addEventListener), then we can just return false from it.
Example:
Click here
or
here
This is a bit of a hack but you could use a basic css work around:
CSS only Example
#div1 {
height: 0;
overflow:hidden;
}
#div1:target {
height: auto;
margin-top: -110px;
padding-top: 110px;
}
#div2 {
background:red;
}
Click to show
<div id="div1">
<div id="div2">Content</div>
</div>
If you need it to be a little more flexible you can add some js...
More Flexible Example with JS
$('a').click(function () {
$('#div1').css({
'margin-top': 0 - $('#div1').position().top + $(window).scrollTop(),
'padding-top': $('#div1').position().top - $(window).scrollTop()
});
});
Basically you're pulling the top of div1 up with the negative margin and then pushing div2 back down with the padding, so that the top of div1 rests at the top of the window... Like I said its a hack but it does the trick.
Those links are anchor-links and by default made for those jumps :) You could use JS to prevent the default behaviour in some way. For example using jQuery:
$('a').click(function(e){e.preventDefault();});
or by default add return false; to the links
Avoid using :target all together and just use onclick event.
function myFunction()
{
document.getElementById('hiddenDiv').style.display = 'block';
return false;
}
i am using toggle buttons in my application, i would like to set the backgound-color when the button is pressed.
how can i know what is the proper attribute?
and in general is there any place that i can know which CSS attribute has which effect on the HTML element?
If you are using GWT ToggleButton, then you may
import com.google.gwt.user.client.ui.ToggleButton;
final ToggleButton tb = new ToggleButton( "my button text" );
if (tb.isDown()) {
tb.addStyleName("pressed"); // or tb.setStyleName("pressed");
}
and in your css file:
.pressed { background-color: blue; } /* any color you want */
Another way - to change just background of this given button:
tb.getElement().getStyle().setProperty("background", "green");
I know GWT is similar to jQuery, but I've never used it... with jQuery I'd do this (I wasn't sure what kind of button tag you were using, so I included both):
CSS
input, button {
background-color: #555;
color: #ddd;
}
.clicked {
background-color: #f80;
}
HTML
<button type="button">Click Me</button>
<input type="button" value="Click Me" />
Script
$(document).ready(function(){
$('button, :button')
.mousedown(function(){ $(this).addClass('clicked') })
.mouseup(function(){ $(this).removeClass('clicked') })
.mouseout(function(){ $(this).removeClass('clicked') });
})
and in general is there any place that i can know which css atribute has which effect on the HTML element?
Yes, http://www.w3schools.com/css/ has most of what you will probably need. Check the left column for the CSS-property you're looking for.
Regarding your first question, I you can just use the btn:active, btn:hover, btn:visited properties. (i.e. your button has the class/id 'btn'.)
Good luck