-<!--
-To change this template, choose Tools | Templates
-and open the template in the editor.
--->
-<!DOCTYPE html>
-<html>
- <head>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head runat="server">
<title></title>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <style type="text/css">
+ .drag
+ {
+ position: relative;
+ height: 50px;
+ width: 50px;
+ background-color: #FF0000;
+ color: White;
+ }
+
+ .dropon
+ {
+ position: relative;
+
+
+ }
+ </style>
+
+ <script type="text/javascript">
+
+ var _startX = 0; // mouse starting positions
+ var _startY = 0;
+ var _offsetX = 0; // current element offset
+ var _offsetY = 0;
+ var _dragElement;
+ var _oldZIndex = 0; // we temporarily increase the z-index during drag
+ var _debug;
+ var _countClick = 0;
+ InitDragDrop();
+ function InitDragDrop() {
+ document.onclick = OnMouseClick;
+ document.onMouseClick = OnMouseClick;
+
+ }
+
+ function OnMouseClick(e) {
+
+ _debug = $('debug');
+ // if first click this is zero
+ if (_countClick == 0) {
+ // IE
+ if (e == null)
+ e = window.event;
+
+ // IE uses srcElement, others use target
+ var target = e.target != null ? e.target : e.srcElement;
+
+ _debug.innerHTML = target.className == 'drag'
+ ? 'draggable element clicked'
+ : 'NON-draggable element clicked';
+
+ // for IE, left click == 1
+ // for Firefox, left click == 0
+ if ((e.button == 1 && window.event != null || e.button == 0) && target.className == 'drag') {
+ // grab the mouse position
+ _startX = e.clientX;
+ _startY = e.clientY;
+
+ // grab the clicked element's position
+ _offsetX = ExtractNumber(target.style.left);
+ _offsetY = ExtractNumber(target.style.top);
+
+ // bring the clicked element to the front while it is being dragged
+ _oldZIndex = target.style.zIndex;
+ target.style.zIndex = 10000;
+
+ // set _dragElement for next click
+ _dragElement = target;
+
+ // tell our code to start moving the element with the mouse
+ document.onmousemove = OnMouseMove;
+
+ // cancel out any text selections
+ document.body.focus();
+
+ // prevent text selection in IE
+ document.onselectstart = function() { return false; };
+ // prevent IE from trying to drag an image
+ target.ondragstart = function() { return false; };
+
+ //set click count to 1 so we know next click is to release
+ _countClick = 1;
+ // prevent text selection (except IE)
+ return false;
+ }
+
+ }
+
+ if (_countClick == 1) {
+
+ var hitelements = getElementsByClassName("dropon");
+
+ for (var i = 0; i < hitelements.length; i++) {
+ if (_dragElement != null) {
+ var hittest = hitTest(_dragElement, hitelements[i]);
+
+ if (hittest) //we have a div we want (dropon)
+ {
+
+
+ if (_dragElement != null) {
+ _dragElement.style.zIndex = _oldZIndex;
+
+ // we're done with these events until the next OnMouseDown
+ document.onmousemove = null;
+ document.onselectstart = null;
+ _dragElement.ondragstart = null;
+
+ // this is how we know we're not dragging
+ _dragElement = null;
+
+ _debug.innerHTML = 'mouse up';
+ }
+
+ //set click count back to 0 so next we know it's first click again
+ _countClick = 0;
+ }
+ }
+
+ }
+
+
+
+ }
+
+ }
+
+ function OnMouseMove(e) {
+ if (e == null)
+ var e = window.event;
+
+ // this is the actual "drag code"
+ _dragElement.style.left = (_offsetX + e.clientX - _startX) + 'px';
+ _dragElement.style.top = (_offsetY + e.clientY - _startY) + 'px';
+
+ _debug.innerHTML = '(' + _dragElement.style.left + ', ' + _dragElement.style.top + ')';
+ }
+
+ function ExtractNumber(value) {
+ var n = parseInt(value);
+
+ return n == null || isNaN(n) ? 0 : n;
+ }
+
+ // this is simply a shortcut for the eyes and fingers
+ function $(id) {
+ return document.getElementById(id);
+ }
+
+ function OnMouseUp(e) {
+
+ }
+
+ hitTest = function(o, l) {
+ function getOffset(o) {
+ for (var r = { l: o.offsetLeft, t: o.offsetTop, r: o.offsetWidth, b: o.offsetHeight };
+ o = o.offsetParent; r.l += o.offsetLeft, r.t += o.offsetTop);
+ return r.r += r.l, r.b += r.t, r;
+ }
+ var a = arguments, j = a.length;
+ j > 2 && (o = { offsetLeft: o, offsetTop: l, offsetWidth: j == 5 ? a[2] : 0,
+ offsetHeight: j == 5 ? a[3] : 0, offsetParent: null
+ }, l = a[j - 1]);
+ for (var b, s, r = [], a = getOffset(o), j = isNaN(l.length), i = (j ? l = [l] : l).length; i;
+ b = getOffset(l[--i]), (a.l == b.l || (a.l > b.l ? a.l <= b.r : b.l <= a.r))
+ && (a.t == b.t || (a.t > b.t ? a.t <= b.b : b.t <= a.b)) && (r[r.length] = l[i]));
+ return j ? !!r.length : r;
+ };
+
+ function getElementsByClassName(classname, node) {
+ if (!node) node = document.getElementsByTagName("body")[0];
+ var a = [];
+ var re = new RegExp('\\b' + classname + '\\b');
+ var els = node.getElementsByTagName("*");
+ for (var i = 0, j = els.length; i < j; i++)
+ if (re.test(els[i].className)) a.push(els[i]);
+ return a;
+ }
+ </script>
+
</head>
<body>
- <div>TODO write content</div>
+
+ <div runat="server" id="thediv" class="drag">
+ Drag this
+ </div>
+
+ <div id="slot1" class="dropon" style='position: absolute; height: 28px; width: 28px;
+ top: 200px; left: 200px; background-color: #FF0000; color: White;'>
+ </div>
+ <div id="slot2" class="dropon" style='position: absolute; height: 28px; width: 28px;
+ top: 200px; left: 230px; background-color: #FF0000; color: White;'>
+ </div>
+ <pre id="debug"> </pre>
+ <canvas width="200" height="200" style="border:1px solid black;" id="thecanvas"></canvas>
</body>
-</html>
+</html>
\ No newline at end of file
projects / roojs1 / blobdiff