I have 3 box with id div1, and a box with id drag1. The box drag1 can be dragged and dropped to any of box div1.
I want to know if there is a way that the div drag1 can be seen during the drag in javascript - like in jquery.
Is there any revert back possible because I don't want to completely change the function to jquery
How to achieve this?
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
}
/*
$("#drag1").draggable({
revert: "valid",
drag: function (event, ui) {
$("#info").html("<font color=red>This square will go back to it`s original position once it`s dropped in target zone. </font>");
}
});
$("#div1").droppable({
drop: function (event, ui)
{
$(this).css("background-color", "lightgreen")
},
out: function (event, ui)
{
$(this).css("background-color", "")
}
});
});
*/
#div1 {
width:120px;
height: 100px;
padding: 10px;
border: 1px solid #aaaaaa;
float:left;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<img id="drag1" src="https://picsum.photos/200/300/?random"
draggable="true" ondragstart="drag(event)" width="100" height="100" style="border:solid">
First, in HTML, you must have unique IDs for each element, so div1 cannot be the ID for all three.
This example of mine is poorly put together and it gives you something to start with. You didn't include in your post what would be needed to trigger a revert event. my example only reverts a Drag if it is dragged to a Drop that has revert class name.
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
var boxData = ev.target.getBoundingClientRect();
ev.dataTransfer.setData("original-position-top", boxData.top);
ev.dataTransfer.setData("original-position-left", boxData.left);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
if (ev.target.className == "revert") {
var el = document.getElementById(data);
el.style.position = "relative";
var startPosition = el.getBoundingClientRect();
startPosition = {
top: startPosition.top,
left: startPosition.left
};
var targetPosition = {
top: ev.dataTransfer.getData("original-position-top"),
left: ev.dataTransfer.getData("original-position-left")
};
console.log("Trigger Revert", el.id, startPosition, targetPosition);
function calcSteps(start, finish) {
var l = Math.abs(start.left - finish.left);
var t = Math.abs(start.top - finish.top);
return {
top: t,
left: l,
pick: (l > t ? "left" : "top")
};
}
var steps = calcSteps(startPosition, targetPosition);
console.log("Steps:", steps);
var a = setInterval(frame, 2);
function frame() {
var i = steps.pick;
console.log("Animate Frame:", steps[i]);
if (steps[i] <= 0) {
clearInterval(a);
} else {
if (startPosition.left + 1 > targetPosition.left) {
// Do nothing
} else {
startPosition.left++;
el.style.left = startPosition.left + "px";
}
if (startPosition.top + 1 > targetPosition.top) {
// Do nothing
} else {
startPosition.top++;
el.style.top = startPosition.top + "px";
}
console.log("Animate Frame:", steps[i], startPosition);
steps[i]--;
}
}
}
}
#div1,
#div2,
#div3 {
width: 120px;
height: 100px;
padding: 10px;
border: 1px solid #aaaaaa;
float: left;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)" class="revert"></div>
<div id="div2" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<div id="div3" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<img id="drag1" src="https://picsum.photos/200/300/?random" draggable="true" ondragstart="drag(event)" width="100" height="100" style="border:solid">
Hope that helps.
Related
I have a code in which there is a dragitem1 and a dropitem1,
Dragitem1 can be dragged and dropped to Dropitem1,
My problem is on dropping the Dragitem1, i want the dragitem1 width to be 100% on dropped area(inside Dropitem1).
for this i used
assignedTabName[0].style.width = "100%";
but didnt give the expected result.
How to make dragitem1 with to 100% on dropped area(after dropping)?
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
console.log(data);
assignedTabName = document.getElementById(data).className;
console.log(assignedTabName);
ev.target.appendChild(document.getElementById(data));
assignedTabName[0].style.width = "100%";
}
.dragitem1{
border:2px solid black;
width: calc(16.3% - 4px);
height:80%;
margin-left:0.5%;
margin-top:0.5%;
margin-right:0.5%;
background-color:#2ecc71;
}
.dropitem1{
border:2px solid black;
position:fixed;
width:23vw;
height:10vh;
left:30vw;
bottom:80vh;}
<div class="dragitem1" draggable="true" ondragstart="drag(event)" id="drag1">
<p id="p1">TEST</p>
</div>
<div class="dropitem1" ondrop="drop(event)" ondragover="allowDrop(event)" id="drop1">
</div>
This should be your code for function drop()
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
console.log(data);
assignedTabName = document.getElementById(data);
console.log(assignedTabName.className);
ev.target.appendChild(assignedTabName);
assignedTabName.style.width = "100%";
}
Change assignedTabName[0] by document.getElementById(data), you where trying to set a style to a string
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
console.log(data);
assignedTabName = document.getElementById(data).className;
console.log(assignedTabName);
ev.target.appendChild(document.getElementById(data));
document.getElementById(data).style.width = "100%";
}
.dragitem1{
border:2px solid black;
width: calc(16.3% - 4px);
height:80%;
margin-left:0.5%;
margin-top:0.5%;
margin-right:0.5%;
background-color:#2ecc71;
}
.dropitem1{
border:2px solid black;
position:fixed;
width:23vw;
height:10vh;
left:30vw;
bottom:80vh;}
<div class="dragitem1" draggable="true" ondragstart="drag(event)" id="drag1">
<p id="p1">TEST</p>
</div>
<div class="dropitem1" ondrop="drop(event)" ondragover="allowDrop(event)" id="drop1">
</div>
You're accessing the first character of the class name with assignedTabName[0]. Get the element once and store it in a variable, check it exists then change the style and append it.
function drop(event) {
event.preventDefault();
const id = event.dataTransfer.getData("text");
const element = document.getElementById(id);
if (element) {
element.style.width = "100%";
event.target.appendChild(element);
assignedTabName = element.className;
}
}
I have three div boxes with id 10, 11, 12. I have an image array, on dropping an item box, the box element gets deleted, I make a call to function nextslide in the on-drop method which calls next slide to display.
On dropping the first element on any box with id 10, 11, 12 The box gets deleted, but displaying next image through nextslide() method doesn't work.
I want to display next image in an array on successfully dropping the first element.
How to achieve this?
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("Text", ev.target.id);
}
var x = document.get
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("Text");
alert(data);
var el = document.getElementById(data);
el.parentNode.removeChild(el); // deleting drag item
ev.target.style.backgroundColor = 'initial'; //[value indicate which box elemenet] bgcoclor none
nextslide();
}
var images = new Array();
images[0] = "https://picsum.photos/200/300/?random";
images[1] = "https://picsum.photos/200/300/?random";
images[2] = "https://picsum.photos/200/300/?random";
var currentpic = 0;
var lastpic = images.length - 1;
function nextslide() {
if (currentpic == lastpic) {
currentpic = 0;
document.getElementById('slide').src = images[currentpic];
} else {
currentpic++;
document.getElementById('slide').src = images[currentpic];
}
}
.box {
background-color: coral;
width: 20%;
height: 60px;
display: inline-block;
border-radius: 5px;
margin: -2px;
border-radius: 12%;
background-color: #00b300;
}
<div id="container">
<div class="box" ondrop="drop(event)" ondragover="allowDrop(event)" id="10">
<p name="values"></p>
</div>
<div class="box" ondrop="drop(event)" ondragover="allowDrop(event)" id="11">
<p name="values"></p>
</div>
<div class="box" ondrop="drop(event)" ondragover="allowDrop(event)" id="12">
<p name="values"></p>
</div>
</div>
<div class="box2" draggable="true" ondragstart="drag(event)" id="2">
<img src="https://picsum.photos/200/300/?random" draggable="true" id="slide" style="width:30px; height:100px; border-radius: 50%;" border="rounded" onclick="nextslide()" />
</div>
I have referred following code to drag and drop in the same container;
drag_over and drop function can not be called; please provide some alternative
Note: Using Chrome and FireFox browser.
function drag_start(event) {
var style = window.getComputedStyle(event.target, null);
event.dataTransfer.setData("text/plain",
(parseInt(style.getPropertyValue("left"), 10) - event.clientX) + ',' + (parseInt(style.getPropertyValue("top"), 10) - event.clientY));
}
function drag_over(event) {
event.preventDefault();
return false;
}
function drop(event) {
var offset = event.dataTransfer.getData("text/plain").split(',');
var dm = document.getElementById('drag_div');
dm.style.left = (event.clientX + parseInt(offset[0], 10)) + 'px';
dm.style.top = (event.clientY + parseInt(offset[1], 10)) + 'px';
event.preventDefault();
}
$(document).ready(function () {
var dm = document.getElementById('drag_div');
dm.addEventListener('dragstart', drag_start, false);
document.body.addEventListener('dragover', drag_over, false);
document.body.addEventListener('drop', drop, false);
});
Try this demo :
<!DOCTYPE HTML>
<html>
<head>
<style>
#div1 {
width: 350px;
height: 70px;
padding: 10px;
border: 1px solid #aaaaaa;
}
</style>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
}
</script>
</head>
<body>
<p>Drag the W3Schools image into the rectangle:</p>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<br>
<p id="drag1" draggable="true" ondragstart="drag(event)" width="336" height="69"> Drag me to the box </p>
</body>
</html>
Somehow my draggables arn't dragging anymore into the placeholders.
I noticed it gives an error on the appendChild in the drop() function but when I alert in there I notice it doesn't even get that far.
var people = ['Sinan', 'Babette', 'Thomas', 'Yannick', 'Nick'];
$.each(people, function(key, val) {
$('#placeholders').append('<div class="dnd" data-id="' + val + '" ondrop="drop(event)" ondragover="testDiv(event, innerHTML)"></div>');
});
$('#seizeImg img').on('dragstart', function(event) {
drag(event);
});
function testDiv(ev, x) {
if (x.length > 0) {
return false;
} else {
allowDrop(ev);
return true;
}
}
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
var complete = false;
$.each('#seizeImg img', function(key, val) {
alert(key);
});
}
.dnd {
display: inline-block;
vertical-align: top;
width: 10%;
height: 160px;
padding: 10px;
border: 2px solid #B7E6E6;
background: rgba(51, 255, 102, 0.2);
}
#seizeImg img {
width: 10%;
height: 160px;
}
div.label {
height: 25px;
text-align: center;
border: none;
background: none;
}
div.buf {
background: rgba(255, 0, 0, 0.2);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="placeholders">
</div>
<br>
<br>
<div id="seizeImg">
<img id="Babette" src="img/Babette.jpg" draggable="true" ondrop="drop(event)" width="186" height="186">
<img id="Thomas" src="img/Thomas.jpg" draggable="true" ondrop="drop(event)" width="186" height="186">
<img id="Yannick" src="img/Yannick.jpg" draggable="true" ondrop="drop(event)" width="186" height="186">
<img id="Sinan" src="img/Sinan.jpg" ondrop="drop(event)" draggable="true" ondrop="drop(event)" width="186" height="186">
<img id="Nick" src="img/Nick.jpg" ondrop="drop(event)" draggable="true" ondrop="drop(event)" width="186" height="186">
</div>
I am assuming you are using jqueryUI with the drag and drop libraries installed. If you aren't that might make things a little easier for you.
you could make it work with:
$('#seizeImg img').draggable();
and if you wanted the drop to save data all you have to do is:
$('#placeholders').droppable({
accept: $('#seizeImg img'),
drop: function(){
//enter code here to take place whenever you drop something on it
// if you want to take a value from the object you are dropping on
// the droppable object just use:
var varID = (ui.draggable.attr("value");
}
});
Its a little more concise and jqueryUI takes out a lot of the guess work.
EDIT:
Unless you didn't include the code up top, you never call the actual jqueryUI draggable function. somewhere around
$(document).ready({function(){
// you have to include
$('seizeImg img').draggable({function(){
//add some more moving parts here if you need to
});
}
just setting draggable='true' in your HTML isn't the same thing.
The problem you are facing is caused by the lines below
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
You are trying to append an element that is not of Node type. That is happening because data is an empty string thus document.getElementById("") returns null which is not allowed to be passued to appendChild.
I want to get the dataset-attributes "data-price" with two decimalnumbers of dragged div boxes via Javascript to sum them up.
Here my div box:
<div name="qty" id="black" data-price="21.1" draggable="true" ondragstart="drag(event)">
I tried to do it with this script
<script type="text/javascript">
function findTotal(){
var arr = document.querySelectorAll("se > div");
var tot=0;
for(var i=0;i<arr.length;i++){
if(parseInt(arr[i].dataset.price))
tot += parseInt(arr[i].dataset.price);
}
document.getElementById('total').value = tot;
}
</script>
but it only counts the data-prices of the non-dragged boxes.
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
}
</script>
What i'm doing wrong here?
You should really add the whole HTML code for us to see how you have set the elements with form/name/attributes. I wrote a simple example based on your code and it works just fine for me and it calculates only the elements that are dropped to the target element. Also for decimal numbers, use parseFloat and not parseInt:
function findTotal(){
var arr = document.querySelectorAll(".target > div");
var tot=0;
for(var i=0;i<arr.length;i++){
if(parseInt(arr[i].dataset.price))
tot += parseFloat(arr[i].dataset.price);
}
document.getElementById('total').textContent = tot;
}
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
findTotal();
}
document.getElementById('reset').onclick = function() { window.location.reload(); }
#black {
background-color: black;
color:white;
}
#red {
background-color: red;
}
#yellow {
background-color: yellow;
}
#green {
background-color: green;
color:white;
}
.qty {
width:50px;
height:50px;
display: inline-block;
margin-right:5px;
margin-bottom:5px;
}
.target {
height:100px;
border:1px solid grey;
}
<button id="reset">Reset</button>
<hr>
<form>
<div class="qty" id="black" data-price="21.1" draggable="true" ondragstart="drag(event)">21.1</div>
<div class="qty" id="red" data-price="16.5" draggable="true" ondragstart="drag(event)">16.5</div>
<div class="qty" id="yellow" data-price="7.8" draggable="true" ondragstart="drag(event)">7.8</div>
<div class="qty" id="green" data-price="3.5" draggable="true" ondragstart="drag(event)">3.5</div>
<h3>Drop items here</h3>
<div class="target" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<h3>Total: </h3>
<div id="total"></div>
</form>
My example can also be found here: http://zikro.gr/dbg/html/jsdd/