This is the problem I am having:
I have created several draggable elements but when I drop one on the droppable element, it does not stay there.
Below are more details.
My JavaScript function receives JSON array from PHP and then uses a loop to create the draggable elements:
<script type="text/javascript">
function init() {
var items = <?php echo $result_j;?>; //items is an one dimensional array
for ( var i=0; i<<?php echo $total_rows_j;?>; i++ ) {
$('<div>' + items[i] + '</div>').data( 'item_name', items[i] ).attr( 'class', 'snk_button' ).appendTo( '#drag' );
}
With the 'items' array I have created several div elements (above code) which I then turn into draggable elements (code below).
$(".snk_button").draggable( {
containment: '#drag_section',//Div #drag_section contains the Div #drag
stack: '#drag div',
cursor: 'move',
revert: true
} )
So, far everything seems to be as expected and I am able to drag my elements (created from 'items' array).
Next, I have created the droppable element as shown below:
$( "#dropp" ).droppable({
drop: function() {
alert('ok');
}
});
}// End function init()
</script>
But when I drag one of my draggable elements on this droppable element, I even get the alert, but the draggable element does not stay on the droppable element.
Can anyone please help me identify why my draggable element is not staying on the droppable element?
Thanks in advance for any help!
You have used revert :true.. It means
Revert means If set to true, the element will return to its start position when dragging stops. Possible string values: 'valid', 'invalid'. If set to invalid, revert will only occur if the draggable has not been dropped on a droppable. For valid, it's the other way around.
Probably you need invalid in case your draggable element is not dropped on proper element
Thanks very much for pointing me in the right direction.
I have solved this particular problem in the following way:
I have edited my droppable code as below:
$( "#filtered" ).droppable(
drop: handleDrop
});
function handleDrop( event, ui ) {
ui.draggable.draggable( 'option', 'revert', false );
} // End function handleDrop
This has solved the problem of the draggable not staying on the droppable (that was previously described).
Related
I have implemented a drag & drop feature using JQuery UI - my current code is provided below:
My JavaScript function receives JSON array from PHP and then uses a loop to create the draggable elements:
<script type="text/javascript">
function init() {
var items = <?php echo $result_j;?>; //items is an one dimensional array
for ( var i=0; i<<?php echo $total_rows_j;?>; i++ ) {
$('<div>' + items[i] + '</div>').data( 'item_name', items[i] ).attr( 'class', 'snk_button' ).appendTo( '#drag' );
}
With the 'items' array I have created several div elements (above code) which I then turn into draggable elements (code below).
$(".snk_button").draggable( {
containment: '#drag_section',//Div #drag_section contains the Div #drag
stack: '#drag div',
cursor: 'move',
revert: true
} )
Below is my droppable code:
$( "#dropp" ).droppable(
drop: handleDrop
});
function handleDrop( event, ui ) {
ui.draggable.draggable( 'option', 'revert', false );
} // End function handleDrop
So far, everything is fine with the draggable items attaching themselves to the droppable div.
Now, I want to tweak this behavior a little:
I want the draggable items to arrange themselves 'automatically' in the droppable div (called '#dropp' in this example), starting from the top left (they will be floating left). Currently this is not happening even though the '#dropp' div has the 'float:left' property set. So, what should I do to have the draggable items arrange themselves when dropped on '#dropp'?
When I take out a draggable item out of the droppable div ('#dropp') I want it return to the div that originally contained the draggable items ('#drag' in this example).
Can you please help implement these 2 behaviors?
After trying this on my own and some R&D for nearly 5-6hrs, I have been able to solve both my problems.
For benefit of others who might be facing the same issues, below is the additional code that is required to implement the behaviors described above:
$( "#dropp" ).droppable({
accept: '#drag div',
drop: function(event, ui)
{
$("div#dropp").append (ui.draggable);
$(ui.draggable).css ({ position:"relative", top:"0px", left:"0px" })
.addClass("moved");
} // End function for handling drop on '#dropp'
}); //End $( "#dropp" ).droppable
This has been added new:
$( "#drag" ).droppable({
accept : ".moved",
drop : function (event, ui)
{
$("div#drag").append (ui.draggable);
$(ui.draggable).css ({ position:"relative", top:"0px", left:"0px" });
} // End function for handling drop on '#drag'
}); // End $( "#drag" ).droppable
That's all is required to implement the behaviors described above. Hope somebody finds the information useful :-)
I have a jquery UI drag and drop for an inventory. It works but i want it to not happen if my inventory already has 20 items in (if it's full).
I'm not that great at javascript/jquery, I can't figure out how to fix my code to do this. I want it to revert back to it's original position if the inventory is full.
Here's the function I'm using to drag/drop
function itemInSpot(drag_item,spot) {
// this is my count. i don't want it to drop an item if it's 20 or more.
var inv_count = parseInt(<? echo count($inv_item) ?>, 10);
var oldSpotItem = $(spot).find('img');
oldSpotItem.appendTo('#inventory').draggable({ revert: 'invalid' });
var item = $('<img />');
drag_item.empty().remove();
item.attr('src',drag_item.attr('src')).attr('title',drag_item.attr('title')).attr('id',drag_item.attr('id')).attr('class',drag_item.attr('class')).appendTo(spot).draggable({ revert: 'invalid' });
}
This is the code that runs the function, set on pageload:
$(document).ready(function() {
$(".weapons,.shield").draggable({ stack: "div", revert: 'invalid'});
$('#inventory').droppable();
$("#weapon_spot").droppable({ accept: '.weapons'})
$('#shield_spot').droppable({ accept: '.shield'});
$('#weapon_spot,#shield_spot,#inventory').bind('drop', function(ev,ui) { itemInSpot(ui.draggable,this); });
});
So how can I add a if inv_count > 19 then revert item back to it's original position in?
Here's a basic jsFiddle example that has six draggable/droppable items, and after the third item is dropped on the target, an alert is triggered and no other draggables are allowed in the droppable area. The elements retain thair draggable property and revert to their original position if a drop is attempted.
jQuery:
$(".ui-widget-content").draggable({
revert: "invalid"
});
$("#droppable").droppable({
drop: function(event, ui) {
$(this).addClass("ui-state-highlight").find("p").html("Dropped!");
$(ui.draggable).addClass('in');
if ($('.in').length == 3) {
$("#droppable").droppable("option", "accept", ".in");
alert('Full!');
}
}
});
I am using sortable from Jquery UI. Each time I get the value from resultPos, it gives me the last move, but rememebr the last order. I need to reset it.
For example, I have 3 elements:
Move 3rd element to 2nd position: end=1&end=3&end=2
Again ...
Move 3rd element to 2nd position: end=1&end=2&end=3
Again ...
Move 3rd element to 2nd position: end=1&end=3&end=2
I need to have something that return to me the following:
Move 3rd element to 2nd position: end=1&end=3&end=2
Again ...
Move 3rd element to 2nd position: end=1&end=3&end=2
Again ...
Move 3rd element to 2nd position: end=1&end=3&end=2
This is my code:
$( ".sortableChip" ).sortable({
revert: true,
containment: "#carousel",
axis: "x",
items: 'li.edited',
tolerance: 'pointer',
placeholder: 'draggin-space',
start: function(event, ui) {
var startPos = $('.sortableChip').sortable('serialize',{ key: 'start'});
},
sort: function(event, ui) {
ui.item.addClass('draggin');
$('.remove-chart').hide();
},
update: function(event, ui) {
var resultPos = $('.sortableChip').sortable('serialize',{ key: 'end'});
ui.item.removeClass('draggin');
}
});
every item in the jquery UI sortable is an LI, there are a few ways you can do it, one way is to to save a variable that has the sortable list contents when the page initially loads like in the document ready part. all its doing is rearranging the order of li tags that are inside of the ul tag.
<script type="text/javascript">
$(document).ready(function(){
$('#link').click(function(){
//this will empty out the contents of the ul
$('.sortableChip').html('');
/*this will replace the contents of the ul with
contents that were caputred
*/
$('.sortableChip').html(reset);
});
});
var reset = $('.sortableChip').html();
/*this is here at the bottom because you want to everything that is created
dynamically with jquery or javascript to be captured also.
*/
</script>
all you are basically doing is returning the right settings once the link is clicked and thats it, you actually don't need this line `$('.sortableChip').html('');
but I put it here so you know that its being emptied out and replaced
if they need to be sorted based on what you click you would save the states you want tohave as variables like reset and simply clear the contents and load the variables based on what the user clicks
The following error just occurs in IE8.
Demo: http://tinyw.in/BLrg
Click on show at Newsletter 313. If you now hover over the blue bar at the left, a layer slides out containing some elements. You can drag each one of this elements. If you start dragging the layer slides back. As you see, in IE8, the dragged element also gets hidden or if you directly drag it over it might get added instantly. And that's the problem, you can open it in IE9, Firefox, Chrome and it works. To see, how it should actually work.
Here's the code which can be found in logic.frontend.js:
(Just a part which is actually used)
$( ".draggable li table" ).draggable({
connectToSortable: ".sortable",
helper: 'clone',
revert: 'invalid',
appendTo: 'body',
start: function(ui) {
$('#elementsContainer').hide('slide', {
direction: "left"
}, 500);
}
});
var height = $('#elementsContainer').outerHeight();
$('#elementsContainerHandle').css('height', height);
$('#elementsContainerHandle').mouseenter(function() {
$('#elementsContainer').css('visibility', 'visible');
$('#elementsContainer').show('slide', { direction: "left" }, 500);
});
$('#elementsContainer').mouseenter(function() {
$(this).css('visibility', 'visible');
});
$('#elementsContainer').mouseleave(function() {
$(this).css('visibility', 'hidden');
});
The problem is, that #elementsContainer gets hidden and due to that all it's children including the dragged element are getting hidden as well. In other browser, .hide() doesn't affect the dragged element because of the option appendTo : 'body'. But in IE8, this seems to break somehow although I'm quite sure the element gets added to the body. I've tried making the draggable visible again with css, .show() etc. but i didn't get it.
Thanks
I'm working on an app that requires drag-drop. Upon drop, the selected draggable needs to remain present but become disabled. Then the new 'dropped' item is appended with a 'close' button. Upon clicking the close button, the item disappears from the 'droppable' area and re-activates as a draggable.
The issue is that once I disable the draggable (after successful drop), i cannot re-enable that one unique item in my separate 'remove' function. here's some sample code - alot of it is stripped out for purposes of simplicity in hopes of getting advice on this particular issues i'm having.
// DROP: initiate droppables
$(".droppable").droppable({
hoverClass: 'drag-state-hover',
accept: '.draggable li img',
tolerance: 'fit',
drop: function(event, ui) {
var elementID = $(ui.draggable).attr("id") // get the dynamically set li id for each list item chosen
if( $(this).children('img').attr('src') == 'images/elements/blank.gif' ) {
// disable the element once it's been dragged and dropped
$(ui.draggable).draggable( 'option', 'disabled', true );
// turn on the remove link
$(this).find('a.remove').toggle();
}
}
});
// ITEM REMOVE: function for removing items
$('.remove').click(function(e) {
var targetID = $(this).parent('li').attr('id');
$('#' + targetID).children('img').draggable( 'option', 'disabled', false );
e.preventDefault();
});
I've also tried this with no success...
// ITEM REMOVE: function for removing items
$('.remove').click(function(e) {
var targetID = $(this).parent('li').attr('id');
$(".droppable").droppable({
hoverClass: 'drag-state-hover',
accept: '.draggable li img',
tolerance: 'fit',
drop: function(event, ui) {
$(ui.draggable).draggable( 'option', 'disabled', false );
}
});
e.preventDefault();
});
I've spent days searching on google for a solution, but I'm banging my head at this point. any assistance would be much appreciated. Thanks!!
Rather than using .draggable( 'option', 'disabled', false ); you can use .draggable( 'enable' );. I don't know if that will solve your problem, but that's how I'd start with debugging it.
In your remove function, have you tried to re-instantiate the element as a draggable? $('#' + targetID).children('img').draggable{}