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+<!doctype html>
+<html>
+ <head>
+ <title>Drag and drop without cancelling dragenter on body</title>
+ <style type="text/css">
+div:first-child {
+ height: 100px;
+ width: 100px;
+ background: orange;
+ display: inline-block;
+}
+div:first-child + div {
+ height: 100px;
+ width: 100px;
+ margin-left: 100px;
+ background: blue;
+ display: inline-block;
+}
+ </style>
+ <script type="text/javascript">
+//If dragenter is cancelled the body should then become the target element, receiving both a dragenter and a dragover event.
+//When the body is the actual immediate user selection (first time over the body), that means it gets *2* dragenter events
+//Then when a div becomes immediate user selection (blue) but does not cancel the dragenter event, dragenter does not need
+//to fire on body because body is already the current target element
+//Then when the body is the actual immediate user selection again (second time over the body), it is already the current
+//target element, so does not get a dragenter event
+window.onload = function () {
+ var drag = document.getElementsByTagName('div')[0], beforecount = 0, aftercount = 0, switchcount = false;
+ drag.ondragstart = function (e) {
+ e.dataTransfer.setData('text','hello');
+ e.dataTransfer.effectAllowed = 'copy';
+ };
+ drag.ondragenter = drag.ondrop = drag.ondragover = function (e) {
+ e.preventDefault();
+ };
+ var drop = document.getElementsByTagName('div')[1];
+ drop.ondragenter = function (e) {
+ switchcount = true;
+ };
+ drop.ondragover = function (e) {
+ e.preventDefault();
+ };
+ document.body.ondragenter = function (e) {
+ if( e.target != this ) { return; }
+ if( switchcount ) { aftercount++; } else { beforecount++; }
+ };
+ drag.ondragend = function (e) {
+ document.getElementsByTagName('div')[2].innerHTML = ( beforecount == 2 && aftercount == 0 ) ? 'PASS' : ( 'FAIL, dragenter fired on body '+beforecount+' time(s) before blue.ondragenter and '+aftercount+' time(s) afterwards, instead of 2 and 0 times respectively' );
+ };
+};
+ </script>
+ </head>
+ <body>
+
+ <div draggable="true"></div><div></div>
+ <div>&nbsp;</div>
+ <p>Drag the orange square onto the blue square, then back to the orange square, and release it.</p>
+ <noscript><p>Enable JavaScript and reload</p></noscript>
+
+ </body>
+</html>