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1<html>
2<head>
3<style>
4#dropTarget, #dragMe { text-align: center; display: table-cell; vertical-align: middle }
5#dropTarget {width: 256px; height: 256px; border: 1px dashed}
6#dragMe {-webkit-user-drag: element; -webkit-user-select: none; background: #ff0000; width: 64px; height: 64px; color: white}
7.pass { font-weight: bold; color: green; }
8.fail { font-weight: bold; color: red; }
9</style>
10<script>
11    var dragMe;
12    var dropTarget;
13    var messageElm;
14    var defaultMessageElm;
15    var event;
16
17    var ALLOWED_EFFECTS = 'move';
18    var DROP_EFFECT = 'copy';
19
20    window.onload = function()
21    {
22        dragMe = document.getElementById("dragMe");
23        dropTarget = document.getElementById("dropTarget");
24        messageElm = document.getElementById("message");
25        defaultMessageElm = document.getElementById("default-message");
26
27        if (!dragMe || !dropTarget || !messageElm || !defaultMessageElm)
28            return;
29
30        dragMe.ondragstart = dragStart;
31        dragMe.ondragend = dragEnd;
32
33        dropTarget.ondragenter = dragEntered;
34        dropTarget.ondragover = dragOver;
35        dropTarget.ondrop = drop;
36    }
37
38    function dragStart(e)
39    {
40        event = e;
41        e.dataTransfer.effectAllowed = ALLOWED_EFFECTS;
42        e.dataTransfer.setData('Text', e.target.textContent);
43    }
44
45    function dragEnd(e)
46    {
47        messageElm.style.visibility = "hidden";
48        defaultMessageElm.style.visibility = "visible";
49        return;
50    }
51
52    function dragEntered(e)
53    {
54        messageElm.style.visibility = "visible";
55        defaultMessageElm.style.visibility = "hidden";
56        dragEnteredAndUpdated(e);
57    }
58
59    function dragOver(e)
60    {
61        dragEnteredAndUpdated(e);
62    }
63
64    function dragEnteredAndUpdated(e)
65    {
66        event = e;
67        e.dataTransfer.dropEffect = DROP_EFFECT;
68        cancelDrag(e);
69    }
70
71    function drop(e)
72    {
73        cancelDrag(e);
74    }
75
76    function cancelDrag(e)
77    {
78        if (e.preventDefault)
79            e.preventDefault();
80        else {
81            // Assume this script is executing within Internet Explorer
82            e.returnValue = false;
83        }
84    }
85</script>
86</head>
87<body>
88    <p id="description">This test can be used to verify that the not-allowed cursor is shown during an invalid drag-and-drop operation.
89        In particular, if the effectAllowed is <code><script>document.write(ALLOWED_EFFECTS)</script></code> and the dropEffect of the
90        drop target is <code><script>document.write(DROP_EFFECT)</script></code> then the drop is not allowed and the cursor should
91        change to the not-allowed cursor. Note, this test only pertains to the Windows build since the Mac build does not show a drop cursor
92        for a not-allowed drop operation (see bug #25925).
93        <br/><br/>
94        Drag the red square over the drop target (demarcated by the dashed boundary). While hovering over the drop target, if the cursor
95        is <img alt="not-allowed" src="data:image/gif;base64,R0lGODlhEgASAIAAAAAAAP///yH5BAAAAAAALAAAAAASABIAAAIvjA+px6ifmnmM1ijDmlbuuHmAhoWXaTqYKq7sObZw3HwgXd8cPr8yDGxBXEJioAAAOw=="> then the test <span class="pass">PASSED</span>. Otherwise, the test <span class="fail">FAILED</span>.</p>
96    <div id="test-container">
97        <label for="effectAllowed">effectAllowed:</label> <code><script>document.write(ALLOWED_EFFECTS)</script></code>
98        <br/><br/>
99        <div id="dropTarget">
100            <div id="default-message">Drag the red square over me.<br/><br/>
101                <label for="dropEffect">Expects dropEffect:</label> <code><script>document.write(DROP_EFFECT)</script></code>
102            </div>
103            <div id="message" style="visibility:hidden">The cursor should be <img alt="not-allowed" src="data:image/gif;base64,R0lGODlhEgASAIAAAAAAAP///yH5BAAAAAAALAAAAAASABIAAAIvjA+px6ifmnmM1ijDmlbuuHmAhoWXaTqYKq7sObZw3HwgXd8cPr8yDGxBXEJioAAAOw==">. Is it?</div>
104        </div>
105        <hr/>
106        <p>Items that can be dragged to the drop target:</p>
107        <div id="dragMe" draggable="true">Square</div>
108        <hr/>
109    </div>
110</body>
111</html>
112