<!doctype html>
<meta charset="utf-8" />
<!-- This test checks whether we compute pointer coordinates correctly for the
dragstart, dragend, and drop events issued during drag-and-drop operations.
This test uses iframes, because they are an interesting case when computing
the clientX, clientY values from screen coordinates. -->
<link rel="stylesheet" href="resources/event-mouse-coordinates.css" />
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/event-mouse-coordinates.js"></script>
<style>
#iframe1 {
margin: 0;
padding: 0;
border: none;
position: absolute;
left: 200px;
top: 100px;
width: 600px;
height: 500px;
}
</style>
<p>
Please drag the "Drag Me" box into the "Drop Here" box.
</p>
<iframe id="iframe1" data-source="iframe1-srcdoc"></iframe>
<script id="iframe1-srcdoc" language="text/html">
<!doctype html>
<link rel="stylesheet" href="resources/event-mouse-coordinates.css" />
<aside class="dragged box" draggable="true">
Drag Me
</aside>
<aside class="dropzone box">
Drop Here
</aside>
</script>
<script>
promise_test((t) => {
return loadNestedFrames(document).then((frameDocument) => {
const dragCenter = elementCenter(frameDocument.querySelector('.dragged'));
const dropCenter = elementCenter(frameDocument.querySelector('.dropzone'));
return runDragTest(t, {
domRoot: frameDocument,
frameOffset: { x: 200, y: 100 },
start: { client: dragCenter, page: { x: 250, y: 150 }},
end: { client: dropCenter, page: { x: 450, y: 350 }},
});
});
}, 'Dragging and dropping DOM nodes in an iframe');
</script>