I believe this is a Firefox bug but I was hoping someone found a workaround.
I have implemented drag and drop functionality, but if I try to drag an element from a div that happens to have a div with an "overflow: auto" it seems to lose the onmouseover event for my target.
Anyone come across this issue and found a resolution?
Copy the following code and run it in IE and Firefox. In IE, you can see it works pretty damn good, with the center column using a div with "overflow". That is what I want!
Now, in Firefox, it doesn't work like that probably because it's doing it the RIGHT way
So, with that said, can any of you javascript guru's think of anything that we can use some JS to force the middle div to use that scrollbar when the content gets past the initial browser height? Code:
when i click a button, this codes will be executed (tested, its working)
var cart=document.getElementById('cart');
cart.innerHTML=cart.innerHTML + document.getElementById('name'+cartNum).innerHTML + "(" + qty + ")" + "<br>";
this is the style of my cart
[Code]...
my problem is, the overflow which i set to auto is not working. the div keeps on enlarging its height everytime i click the button. seems like it has a conflict with innerhtml?
In order to make my site scalable (down to 1024x768), I need four layers to vertically scroll so that their contents doesn't force the main page to scroll. However, on higher resolutions, there'll be more space below the layers which means I don't necessarily want the layers to scroll if there's enough space to fit the text in.
I've tried CSS - I had to specify a height of 250px (the most I can use before main-page-scrolling takes effect in 1024x768) and set overflow: auto. The problem with this is that this is static formatting - no matter what resolution I use, the layers are always going to scroll because the height has been set to 250px.
So I was wondering if there's a way, either a CSS property/function (or maybe this can only be done in java script) - to make the layers scroll only if there's a risk of the main page scrolling?Or do I need to attack this with a crowbar and have a separate style sheet for every single resolution where I specify the height of the layers for each one?
So, what it does: You can successfully drag something anywhere, but when you click it again, it resets to its original position (I don't know why), and when you try to drag it again, as soon as your cursor touches the object it disappears (I don't know why). why it is happening and how to fix it!
// JavaScript Document
var posX;
var posY;
var element;
[Code]....
the html is a simple (position is set to relative):
<p id="square" onmousedown="drag(event)">meep</p>
EDIT: This is the first time I've written javascript code and would like to learn the basics, which is why I am not using a library.
I am implementing auto re-order drop down values in asp.net. My requirement is something: I have five drop down and each has populated using 1 to 5 values. when I changevalue from dropdown, other drop down values(numberordering)should change automatically.
View 1 Replies View RelatedI have a div with the ID dropContainer, which has a fixed size and overflow:auto. In that div are some droppable list items.An Example is here:[URL]
However, if I drop the green draggable item into the visible area of the dropContainer, everything works allright. But if I drop it below the dropContainer, it is dropped on a invisible droppable item. I tried to fix that problem using a z-index property, but this didn't work.
Is there a way how I can prevent the invisible items to be droppable?
I can't figure out how to drag and drop. I've followed some tutorials but no success. I use Firefox as my browser. Any tutorial you would recommend?
View 2 Replies View RelatedI am using YUI's Drag and Drop utility to add some drag & drop functionality to a CMS I'm building.
This works just fine and is very easy to set up, but the thing I'm wondering about, how do I restrict the dragging? In other words; how can I make sure an element gets dragged within the borders of, say, some div and not outside them?
I'm currently building a website that has a flash fullscreen popup at the beginning. The flash popup loads fullscreen, therefor I've set overflow-y to hidden. As soon as the flash popup is done, it removes the div it the flash is in using javascript, but I can't figure out how to put the overflow-y to visible.
I'm assuming I need to build a Javascript function to show overflow-y visible, and then need to call to that function from the flash file. I just can't figure out how to build the javascript function since I suck at javascript.
All the CSS is in the original file, so not in an external stylesheet, this needs to stay that way because I have to implement the code in to several different web sites.
As the subject says, is this possible. I'd like to drag a file onto a button and have the filename accesable within that pages javascript.
View 1 Replies View RelatedI build my first Drag & Drop with JavaScript and I would like to drag
the pictures when I click on it.
When I create a normal div tag with some text the script works, but
when I put a image in the div tag it works not correctly.
Here is my Code... I integrated three pictures and one text, then you
can see the differences.
a part of my html site:
I'm in the middle of creating a project management system for our office, and I was wondering if javascript is capable of emulating drag and drop? This would allow me to do some cool stuff.
View 1 Replies View RelatedAfter a good deal of internal development, I've decided this library will do more good in the wild. It works in IE6, Safari 2, Opera 9, Firefox 1.5, and IE5.5/Mac (sort of buggy behavior with text selection in IE5.5/Mac though). It should also work in virtually any version of Gecko, Opera 6+, Safari 1, and IE5+ (anybody who wants to test those, feel free). The scripting is highly efficient, and only exposes two functions globally, Draggable and Droppable. The below code is licensed under the LGPL, though it is available under other licenses per request.
Let me know if you have any issues with it - this is something I'm interested in maintaining. Also, compared to other scripts, such as script.tac.ulo.us, this is much less code (lots of whitespace/comments could be taken out), and more widely supported across browsers.
Other than below, it can be found here: http://www.jasonkarldavis.com/scripts/dragdropable/dragdropable.html
// dragdropable.js (1.0.1)
//Copyright (C) 2006 Jason Davis, www.jasonkarldavis.com
//This code is licensed under the LGPL:
//http://www.gnu.org/licenses/lgpl.html
//
// Documentation:
//This script exposes two global variables, Draggable and Droppable. To make an
//element draggable, simply call `Draggable(element)`. This sets the necessary
//CSS properties and event handlers. It also overrides the addEventListener and
//and attachEvent methods (if present) to include the following events:
//onstart(When the element begins dragging)
//ondrag(When the element is being dragged)
//onstop(When the element has stopped dragging)
//You may also assign element.onstart, element.ondrag, and element.onstart to
//add event listeners.
//Lastly, if you need to physically prevent an element from dragging, you may
//call event.preventDefault() from within the onstart handler.
//
//To make an element droppable (have things dragged onto it), call
//`Droppable(element)`. This sets the necessary event handlers and coordinate
//searches. Once again, it overrides addEventListener and attachEvent to
//include the following events:
//onhover(When another element has been dragged over the element)
//ondrop(When another element has been dropped onto the element)
//onunhover(When another element has been dragged off the element)
//As before, you may also set element.onhover, element.ondrop, and
//element.onunhover directly.
//To remove all drop points from the current session, call `Droppable.reset()`.
//
//The event object is also extended with the following properties:
//dragTarget(The element being dragged)
//dropTarget(The element being dropped onto)
//
// Known bugs:
//* removeEventListener and detachEvent do not work with the custom events.
//Workaround: Use direct assignment (element.onevent) instead.
//* There is no way to remove a single drop point.
//Workaround: Call Droppable.reset(), then reinitialize the other drop points.
//* There is no way to remove dragging from an element.
//Workaround: element.onstart = function(event) { event.preventDefault() }
//* Changing position of droppable elements after initialization breaks drop
//Workaround: Static droppables are much faster than moving ones. Either call
//Droppable.reset() and reinitialize often, or ask the author to modify the
//script to account for this (and accept the resulting slowdown)
function Draggable(element) {
// initialize drag variable
var x = 0, y = 0, oldMouseMove, oldMouseUp;
// get style properties of element
var computedStyle;
if (typeof document.defaultView != "undefined" && typeof document.defaultView.getComputedStyle != "undefined")
computedStyle = document.defaultView.getComputedStyle(element, "");
else if (typeof element.currentStyle != "undefined")
computedStyle = element.currentStyle;
else
computedStyle = element.style;
// prep element for dragging
if (computedStyle.position == "static" || computedStyle.position == "")
element.style.position = "relative";
if (computedStyle.zIndex == "auto" || computedStyle.zIndex == "")
element.style.zIndex = 1;
element.style.left = isNaN(parseInt(computedStyle.left)) ? "0" : computedStyle.left;
element.style.top = isNaN(parseInt(computedStyle.top )) ? "0" : computedStyle.top;
// default event listeners
function onstart(event) {
event.dragTarget = element;
x = event.clientX;
y = event.clientY;
// Override preventDefault
event.preventDefault = (function(original) {
return function() {
element.ownerDocument.onmousemove = oldMouseMove;
element.ownerDocument.onmouseup = oldMouseUp;
original.call(event);
}
})(event.preventDefault || function() {});
if (element.onstart) element.onstart(event);
}
function ondrag(event) {
event.dragTarget = element;
element.style.left = parseInt(element.style.left) + event.clientX - x + "px";
element.style.top = parseInt(element.style.top) + event.clientY - y + "px";
x = event.clientX;
y = event.clientY;
Droppable.query(event);
if (element.ondrag) element.ondrag(event);
}
function onstop(event) {
event.dragTarget = element;
Droppable.query(event);
if (element.onstop) element.onstop(event);
}
// make listeners active
element.onmousedown = (function(oldMouseDown) {
return function() {
// Call old listener
if (oldMouseDown) oldMouseDown.apply(this, arguments);
// Store old event handlers
oldMouseMove = this.ownerDocument.onmousemove;
oldMouseUp = this.ownerDocument.onmouseup;
// Setup events
this.ownerDocument.onmousemove = function() {
// Call old listener
if (oldMouseMove) oldMouseMove.apply(this, arguments);
// Call ondrag
ondrag.call(element, arguments[0] || event);
return false;
}
this.ownerDocument.onmouseup = function() {
// Call old listener
if (oldMouseUp) oldMouseUp.apply(this, arguments);
// Call onstop
onstop.call(element, arguments[0] || event);
// Restore old event listeners
this.onmousemove = oldMouseMove;
this.onmouseup = oldMouseUp;
return false;
}
// Call onstart
onstart.call(this, arguments[0] || event);
return false;
}
})(element.onmousedown);
// override event attachers
if (element.addEventListener)
element.addEventListener = (function(original) {
return function(event, listener, useCapture) {
switch (event) {
case "start":
onstart = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onstart);
break;
case "drag":
ondrag = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(ondrag);
break;
case "stop":
onstop = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onstop);
break;
default:
original.call(element, event, listener, useCapture);
}
}
})(element.addEventListener);
if (element.attachEvent)
element.attachEvent = (function(original) {
return function(event, listener) {
switch (event) {
case "onstart":
onstart = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onstart);
break;
case "ondrag":
ondrag = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(ondrag);
break;
case "onstop":
onstop = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onstop);
break;
default:
original.call(element, event, listener);
}
}
})(element.attachEvent);
if (window.attachEvent)
window.attachEvent("onbeforeunload", function() {
onstart = ondrag = onstop = element.onmousedown = element.addEventListener = element.attachEvent = null;
element = null;
});
}
// initialize Droppable in the global scope
var Droppable;
(function() {
if (document.getBoxObjectFor) {
function getOffset(element) {
var box = document.getBoxObjectFor(element);
return { x: box.x, y: box.y };
}
}
else if (document.all && navigator.appName == "Microsoft Internet Explorer" && !window.opera) {
function getOffset(element) {
var range = document.body.createTextRange();
range.moveToElementText(element);
var rect = range.getBoundingClientRect();
return { x: rect.left, y: rect.top };
}
}
else {
function getOffset(element) {
var accumulator = arguments[1] || { x: 0, y: 0 };
if (element && element != document.body) {
accumulator.x += element.offsetLeft;
accumulator.y += element.offsetTop;
return getOffset(element.offsetParent, accumulator);
}
else {
return accumulator;
}
}
}
// initialize private pointers to current target information
var cTarget = null, cHover = null, cUnhover = null, cDrop = null;
function hotSpots(x,y) {
cTarget = cHover = cUnhover = cDrop = null;
}
// declare Droppable within the private scope
Droppable = function(element) {
// Calculate offset
var offset = getOffset(element);
// Calculate other edge offset
var edge = { x: offset.x + element.offsetWidth, y: offset.y + element.offsetHeight };
// Assign a finder function
hotSpots = (function(old) {
return function(x,y) {
if (offset.x <= x && x <= edge.x && offset.y <= y && y <= edge.y) {
cTarget = element;
cHover = onhover;
cUnhover = onunhover;
cDrop = ondrop;
}
else {
old(x,y);
}
}
})(hotSpots);
// default event listeners
function onhover(event) {
event.dropTarget = element;
if (element.onhover) element.onhover(event);
}
function onunhover(event) {
event.dropTarget = element;
if (element.onunhover) element.onunhover(event);
}
function ondrop(event) {
event.dropTarget = element;
if (element.ondrop) element.ondrop(event);
}
// override event attachers
if (element.addEventListener)
element.addEventListener = (function(original) {
return function(event, listener, useCapture) {
switch (event) {
case "hover":
onhover = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onhover);
break;
case "unhover":
onunhover = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onunhover);
break;
case "drop":
ondrop = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(ondrop);
break;
default:
original.call(element, event, listener, useCapture);
}
}
})(element.addEventListener);
if (element.attachEvent)
element.attachEvent = (function(original) {
return function(event, listener) {
switch (event) {
case "onhover":
onhover = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onhover);
break;
case "onunhover":
onunhover = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(onunhover);
break;
case "ondrop":
ondrop = (function(old) {
return function(event) { old.call(element,event); listener.call(element,event); }
})(ondrop);
break;
default:
original.call(element, event, listener);
}
}
})(element.attachEvent);
if (window.attachEvent)
window.attachEvent("onbeforeunload", function() {
hotSpots = onhover = onunhover = ondrop = element.addEventListener = element.attachEvent = cTarget = cHover = cUnhover = cDrop = null;
element = null;
});
}
// Setup a query method
Droppable.query = function(event) {
var oTarget = cTarget,
oHover = cHover,
oUnhover = cUnhover,
oDrop = cDrop;
var scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft,
scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
hotSpots(event.clientX + scrollLeft, event.clientY + scrollTop);
switch (event.type) {
case "mousemove": // onhover & onunhover
if (oTarget != null && oTarget != cTarget)
oUnhover.call(oTarget, event);
if (oTarget == null && cTarget != null)
cHover.call(cTarget, event);
break;
case "mouseup": // ondrop
if (cTarget != null) {
cUnhover.call(cTarget, event);
cDrop.call(cTarget, event);
}
break;
}
}
Droppable.reset = function() {
hotSpots = function(x,y) {
cTarget = cHover = cUnhover = cDrop = null;
}
hotSpots();
}
})();
// Fix the function prototype for IE5/Mac
if (typeof Function.prototype.apply == "undefined")
Function.prototype.apply = function(scope, args) {
if (!args) args = [];
var index = 0, result;
do { -- index } while (typeof scope[index] != "undefined");
scope[index] = this;
switch (args.length) {
case 0:
result = scope[index]();
break;
case 1:
result = scope[index](args[0]);
break;
case 2:
result = scope[index](args[0], args[1]);
break;
case 3:
result = scope[index](args[0], args[1], args[2]);
break;
case 4:
result = scope[index](args[0], args[1], args[2], args[3]);
break;
default:
result = scope[index](args[0], args[1], args[2], args[3], args[4]);
break;
}
delete scope[index];
return result;
}
if (typeof Function.prototype.call == "undefined")
Function.prototype.call = function(scope) {
var args = new Array(Math.max(arguments.length-1, 0));
for (var i = 1; i < arguments.length; i++)
args[i-1] = arguments[i];
return this.apply(scope, args);
}
I really like the drag-drop box from bbc.co.uk, but I don't know how to do it. Can anybody help me to create a page like that?
View 1 Replies View RelatedAnyone know a good 'Drag&Drop' tutorial? i mean those tutorials that teach you how to implement the drag-and-drop-elements from scratch. All what i found so far were tutorial(s) teaching you how to use an existing library. I'll eventually use a library, but i'd rather learn it's basics first and implement it myself the first time.
View 4 Replies View RelatedDoes anyone know of a publicly available drag & drop tree script? Google only turned up a bunch of nice tree scripts, but none of them have drag & drop functionality.
View 3 Replies View RelatedHere is a small test for all those hardcore JavaScript programmers. Is it possible to drag'n'drop a text/image element (eg. A or IMG tag) from one (I)FRAME to another (I)FRAME. This is easy & possible with IE's proprietary ondrag events. However the question is, is there a work-around using standard W3C/Firefox onmousedown, onmouseup, etc. events only? Code:
View 2 Replies View RelatedI want to test if I get a overflow in a fixed sized div and in that case add 'overflow:scroll' to the div. I guess there is a way to check if a generated contents (from PHP) will create an overflow but how?
View 3 Replies View RelatedIs there a way to make it possible for an <input type=file> form element to accept a drag-and-drop file or will the browser window always accept the file?
View 1 Replies View RelatedIs it possible to request filename and path of a file dragged from eg. the desktop onto a drop-event-enabled element?
View 2 Replies View RelatedIm having the exact same problem as posted here:[URL]
When I drag my link to my droppable area, an ajax request is supposed to triggred, but it seems like the whole page is beeing reloaded. This works fine with Chrome and Firefox. It works in IE if I have insert an alert in the drop function.
Im including the drop code I have:
$('.droppable').droppable({
drop: function(ev, ui) {
var intSourceObjectType = ui.draggable.attr('objecttype');
var intSourceObjectId = ui.draggable.attr('objectid');
[Code]....
Please the link to see what I have done so far...[URL]... It is a day planner, where various places can be dragged on to the day planner. It works, but it seems very slow. Running firebug profile when dragging a simle place into a single slot tells me that over 35,000 calls were made.
View 7 Replies View RelatedI've got a page that uses the draggable and droppable feature - [URL]
It also uses jQuery to call a web service via Ajax - this also works fine.
However, I want to call the web service only when an item is dropped onto the objeect but when I try to add the Ajax function inside the $("#droppable").droppable({ drop: function(event, ui) {.... it doesn't seem to work.
You can see my code at [URL]
I am using jQuery Tabs to make an ajax call for each tab when clicked. The ajax that displays is like inettuts. 3 or 4 columns of widgets that can be dragged and dropped. The problem that I am having, when I put the html of the result directly in the main page, it works as designed. When I click on a tab, it displays the page, but all the jquery functions in that ajax page are gone and I cannot sort, drag and drop anything. I suspect that the ajax page is not reading the javascripts in the head, which are on main page. Unfortunately I can't remove them to include them in ajax pages dynamically because I am also using them for other functions in main page. Is there a way to make those ajax pages read the javascripts on that main page?
[URL]
I found fantastic drag and drop technique, analyzied javascript file and would like to get helo, how to create it. Here: [URL] you can drag and drop the photos to the right box, then you can email them. How can I create it on my own website? You can find javascript file here: [URL]. Is it possible at all?
View 2 Replies View Related
