I am creating a div where you can drop files from your desktop, but also upload them by clicking on it. Because of the security limitations (I can't trigger a click for an file input), I am doing the trick of moving around an opacity 0 file input, following the mouse while it's on the target div. It perfectly works on Chrome, but Firefox doesn't do the trick (as it sticks the file input to the top left of the div. I'll show you the structure I am using:
<div style="position:relative;width:500px">
<img class="img-drop" width="500" src="http://placehold.it/500x500">
<div class="over-img-drop" style="position:absolute;width:100%;height:100%;top:0;">
Drop or click to upload a picture.
<input type="file" style="position:absolute;width:20px;height:20px;opacity:0" class="fileupload">
</div>
<i class="icon-chevron-down"></i>
</div>
And here comes the Javascript
<script type="text/javascript">
$(".over-img-drop").on("mouseover, mousemove", function(e){
if($(e.target).hasClass("fileupload")) //if event is happening over file input, avoid moving
return true;
$(this).find(".fileupload").css("top", e.offsetY-10).css("left", e.offsetX-10);
return false;
});
</script>
Well, I happened to find a solution:
event.offsetX and event.offsetY is available on Chrome, but not on Firefox (those values return undefined). What you have to do is to calculate the offset manually and put any position based on this calculations: jQuery includes this, as mentioned here.
What you should do is to get the container's offsets, and substract this from the event.pageX and event.pageY. So, the code looks like this:
<script type="text/javascript">
$(".over-img-drop").on("mouseover, mousemove", function(e){
if($(e.target).hasClass("fileupload"))
return true;
var offsets = $(this).offset();
$(this).find(".fileupload").css("top", e.pageY-offsets.top-10).css("left", e.pageX-offsets.left-10);
return false;
});
</script>
Related
I have a HTML code with a canvas and a button, and all the necessary drawings are inside the draw(canvas) function.
<script>
init = (event) => {
canvas = document.getElementById("canvas")
draw(canvas);
}
window.onload = init
</script>
<canvas id="canvas" width="500" height="400"></canvas><br>
<button type="button">Button</button>
I am trying to include this code in a WordPress post, and I have managed to do so (with both the 'WPCode' and 'Insert HTML Snippet' plugins). As long as I only have one figure it works fine, but when I try to add the figure one more time later in the post, it stops working. I should have two buttons and two figures, but instead it is two buttons and just one canvas.
It seems like the two code snippets interfere with each other. If I remove the first one, the second one works just fine. How can I include two identical figures so that they don't interfere?
I have tried inserting two independent HTML code snippets in two different WordPress blocks, expecting them to function independently.
If you place the same code twice you are calling the same function at different points and still only referencing the first canvas block while having two blocks with the same id. Set the second block to have the id of canvas2 or similar as below.
Add the canvas block where you first inserted it:
<canvas id="canvas" width="500" height="400"></canvas><br>
<button type="button">Button</button>
Add the canvas2 later in the article:
<canvas id="canvas2" width="500" height="400"></canvas><br>
<button type="button">Button</button>
Add the new script at the very end of the article in another code snippet block:
<script>
init = (event) => {
canvas = document.getElementById("canvas");
draw(canvas);
canvas2 = document.getElementById("canvas2");
draw(canvas2);
}
window.onload = init;
</script>
I'm adding a Chatango HTML5 chat box to my website, but when users scroll up or down in the chat box, it also scrolls up or down the rest of the page. I've been experimenting with different codes I've found on this site, but so far nothing has worked.
I thought I found a solution here: How to disable scrolling in outer elements? and applied it to my chatroom. It works exactly how I want it to on this codepen editor: http://codepen.io/EagleJow/pen/QbOBJV
But using the same code in JSFiddle: https://jsfiddle.net/4bm6ou90/1/ (or on my actual website) does not prevent the rest of the page from scrolling. I've tested it in both Firefox and Chrome with the same results.
Here's the javascript:
var panel = $(".panel");
var doc = $(document);
var currentScroll;
function resetScroll(){
doc.scrollTop(currentScroll);
}
function stopDocScroll(){
currentScroll = doc.scrollTop();
doc.on('scroll', resetScroll);
}
function releaseDocScroll(){
doc.off('scroll', resetScroll);
}
panel.on('mouseenter', function(){
stopDocScroll();
})
panel.on('mouseleave', function(){
releaseDocScroll();
})
Any ideas?
It didn't work on JSFiddle because I didn't have jQuery set on the side menu and it didn't work on my website because the '$' symbol in the javascript conflicted with that same symbol in the jQuery (or something like that).
Here's the JSFiddle with better code and set to load jQuery: https://jsfiddle.net/4bm6ou90/7/
The Javascript:
$.noConflict();
jQuery( document ).ready(function( $ ) {
$(".panel").on("mouseenter", function(){
$(document).on("scroll", function(){
$(this).scrollTop(0);
});
});
$(".panel").on("mouseleave", function(){
$(document).off("scroll");
});
});
Also gotta have that jQuery CDN in the html head section.
I've checked other posts on here, no results of what I'm looking for.
I want to click on
About
<div id="about">Content of this..</div>
and have it scroll to that element without putting www.domain.com/#about in the address bar
As a perfect example please check out this site that I found here and click on some of the links --they don't change the address bar when clicked.
You can do what you want using javascript and jquery, example below (note that this is using an old version of jquery):
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type='text/javascript'>
jQuery(document).ready(function($) {
$(".scroll").click(function(event){
event.preventDefault();
$('html,body').animate({scrollTop:$(this.hash).offset().top}, 1200);
});
});
</script>
</head>
<body>
<a class="scroll" href="#codeword">Blue Words</a>
<div id="codeword"></div>
</body>
</html>
Played around with this myself and here is a summary of my learnings on the subject.
Here's the basic link command:
Blue Words
Here's how you denote where the jump will scroll the page:
<A NAME="codeword">
Here's what's happening
The A HREF command is the same as a basic link except the link is to a codeword rather than a URL.
PLEASE NOTICE there is a # sign in front of the codeword. You need that to denote it is an internal link. Without the # sign, the browser looks for something outside the page named after your codeword.
Your "codeword" can be just about anything you want. I try my best to keep it short and make it denote what it is jumping to. There might be a limit to the number of letters you can use--but I haven't found it yet.
The point where the page will jump follows the same general format except you will replace the word HREF with the word NAME.
PLEASE NOTICE there is no # sign in the NAME command.
Note! Where you place the NAME target will appear at the top of the screen browser.
Hope it helps.
window.location.hash = ""
is the possible way I could find.
hash gives the string next to #.
//dont use a, use class
$(document).ready(function(){
$(".mouse").on('click', function(event) {
// Make sure this.hash has a value before overriding default behavior
if (this.hash !== "") {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes
to scroll to the specified area
$('html, body').animate({
scrollTop: $("#section").offset().top
}, 800, function(){
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = "";
});
} // End if }); });
One possible workaround is to use a <button> instead of a <a>.
So rather than....
About
<div id="about">Content of this..</div>
...you can change it to
<button href="#about">About</button>
<div id="about">Content of this..</div>
This way the anchor link will not affect the URL.
For me, only inserting "return false;" solved this issue.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js" async></script>
<script>
jQuery(document).ready(function($) {
$('a[href^=#]:not(a[href=#])').click(function() {
$('html, body').animate({scrollTop: $(this.hash).offset().top}, 1300, 'easeInOutExpo');
return false;
});
});
</script>
(This applies to all anchor links on the page.)
I tried to monitor window.location.hash using a MutationObserver, but that doesn't work, see How to use (or is it possible) MutationObserver to monitor window.location.pathname change?
So now I'm using the window.onpopstate() eventListener:
var flag_onpopstate=false; // use this global flag to prevent recursion
window.onpopstate = () => {
if (flag_onpopstate) return;
flag_onpopstate = true;
window.location.hash = "";
flag_onpopstate = false;
}
A popstate event is dispatched to the window each time the active history entry changes between two history entries for the same document.
I have read the many threads on stack about this issue, but nothing will resolve my problem. I have the google map on a tab that is initially hidden when the page loads and would like some assistance please. Here is the full code:
<script type="text/javascript">
function loadsinglemap(){
var mymap = new MeOnTheMap({
container: "map_sidebar2",
html: "<?php echo str_replace('"',"",$post->post_title); ?>",
address: "<?php echo str_replace('"','',get_post_meta($post->ID, "map_location", true)); ?>",
zoomLevel: 15,
});
}
jQuery(document).ready(function() { loadsinglemap(); })
</script>
This is on the page where the map is displayed:
<script type="text/javascript">
$(document).ready(function(){
$('a.contact').click(function(){
google.maps.event.trigger(mymap, 'resize');
});
});
</script>
I just cannot get it to work. If anyone sees something that would help please respond.
Thanks
EDIT: Changed the element selector to a class, and my link to a class instead of an ID and it now at least picks it up. I get an error in firebug that "mymap is not defined".
call the initilize() function once again after you unhide the div.
i did it and it worked.
JSFiddle
I found instead of hiding the div set it's height / width to 0px; and set its overflow to hidden.
Helped me hope it helps you :)
Check Roosko's answer here https://groups.google.com/forum/#!topic/google-maps-js-api-v3/aUrVnx-i7LI , it works for me!
Since the map loads before the modal gets a defined size, it renders
size as zero.
<a href="#?w=500" rel="popup2" class="poplight" onClick="initialize()">
<img src='images/location1.png' title='Location' alt='images/location2.png' />
</a>
I called the initilize() function when the pop up is clicked.
I Have Been working on a page the using a jquery autocomplete so that while your typing in a clients name its searching the databases for any macth containing that phrase. so using "LIKE" .
i have also put together a jquery silder so that it displays the records that are automaticly loaded from the database and when u click on one it will load more inofmation from the database..
indivaully thesse 2 pieces of code work fine so the jquery autocomplete on a serprate page just loading text enterys from a database.
and the jquery slider works fine with manually entered data and data loaded by php from a database..
but when i put them together the problem is it shows the record on the screen with the styling from the jquery slider but when u click the record it doesnt show anything so no slider (atm just manual html data in the slider for testing)
i have tried multipule tests such as running them serpeatre, placing them in different div tags. i have got it to work with a single sql query but it isnt what i need to do because i dont want the page to need to be refreshed for loading data.
i have placed my code from both files so th is first one is what calls the ajax request to create the records..
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$(".recordrow").click(function() {
var divid = "details-" + $(this).attr('id').split("-")[1]; //Create the id of the div
$("#"+divid).show().animate({ "right": '0%'}); //Bring the div from right to left with 200px padding from the screen
});
$('#bt-close').click(function(){
$('.details').animate({right:-2000}, 500);
});
});
function getStates(value){
$.post("sql.php",{partialState:value},function(data){
$("#results").html(data);
});
}
</script>
<input type="text" onkeyup="getStates(this.value)"/>
<br />
<div id="results">
</div>
And this is the page which querys the database
<?php
if($_POST['partialState']){
mysql_connect("localhost","root")or die (mysql_error());
mysql_select_db("ict_devices") or die (mysql_error());
$test=$_POST['partialState'];
$text="... More details of the records";
$states = mysql_query("Select * from students Where FirstName LIKE '%$test%'");
while($state= mysql_fetch_array($states)){
echo '<div class="recordrow" id="row-$state["id"]">'.$state['FirstName'].'</div>';
echo '<div class="details" id="details-$state["id"]">'.$text.'Close</div>';
}
}
?>
any help would be greatly appricated
I think you need to bind a click function on "recordrow" div after you got it by ajax. In your code there are no "recordrows" on the moment a click event binds. So you need something like this:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
function getStates(value){
$.post("sql.php", function(data){
$("#results").html(data);
$('.recordrow').each(function() {
$(this).bind('click', function() {
var divid = "details-" + $(this).attr('id').split("-")[1]; //Create the id of the div
$("#"+divid).show().animate({ "right": '0%'}); //Bring the div from right to left with 200px padding from the screen
});
});
$('#bt-close').each(function() {
$(this).bind('click', function(){
$('.details').animate({right:-2000}, 500);
});
});
});
}
</script>
Your ajax is right and when you test slider recordrows already in DOM, click binds correcly. That is why it works by parts
EDIT: I test my code and add binding of bt-close event, it works for me, try it. It shows details when clicked and animation launches