mirror of
https://github.com/servo/servo
synced 2026-04-29 10:57:43 +02:00
88 lines
3.4 KiB
HTML
88 lines
3.4 KiB
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>Drag and drop without cancelling dragenter and without body (spec compliant)</title>
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<style type="text/css">
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head + div {
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height: 100px;
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width: 100px;
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background: orange;
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display: inline-block;
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}
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head + div + div {
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height: 100px;
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width: 100px;
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margin-left: 100px;
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background: blue;
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display: inline-block;
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}
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</style>
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<script type="text/javascript"><![CDATA[
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//Drag passes from orange to root element. Dragenter fires at root element.
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//Dragenter is not cancelled. Body does not exist. Dragenter fires at document.
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//Spec says the body (which does not exist) becomes current target element => null.
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//Drag passes from root element to blue. Dragenter fires at blue.
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//Dragenter is not cancelled. Body does not exist. Current target element is null.
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//Dragenter fires at document. Current target is set to null again.
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//Drag passes from blue to root element. Dragenter fires at root element.
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//Dragenter is not cancelled. Body does not exist. Current target element is null.
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//Dragenter is not cancelled. Body does not exist. Dragenter fires at document.
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//Current target is set to null. Yet again.
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//Drag passes from root element to orange. Dragenter fires at orange, and is cancelled.
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window.onload = function () {
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var orange = document.getElementsByTagName('div')[0], sequence = [];
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orange.ondragstart = function (e) {
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e.dataTransfer.setData('text','hello');
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e.dataTransfer.effectAllowed = 'copy';
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};
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orange.ondragenter = orange.ondrop = function (e) {
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sequence[sequence.length] = 'orange.'+e.type;
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e.preventDefault();
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};
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orange.ondragleave = function (e) {
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sequence[sequence.length] = 'orange.dragleave';
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};
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orange.ondragover = function (e) {
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if( sequence[sequence.length-1] != 'orange.dragover' ) {
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sequence[sequence.length] = 'orange.dragover';
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}
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e.preventDefault();
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};
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var blue = document.getElementsByTagName('div')[1];
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blue.ondragenter = blue.ondragover = blue.ondragleave = function (e) {
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sequence[sequence.length] = 'blue.'+e.type;
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};
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document.documentElement.ondragenter = document.documentElement.ondragleave = function (e) {
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if( e.target != this ) { return; }
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sequence[sequence.length] = 'html.'+e.type;
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};
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document.documentElement.ondragover = function (e) {
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if( e.target != this ) { return; }
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if( sequence[sequence.length-1] != 'html.dragover' ) {
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sequence[sequence.length] = 'html.dragover';
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}
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};
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document.ondragenter = document.ondragleave = document.ondragover = document.ondragleave = function (e) {
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if( e.target != this ) { return; }
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sequence[sequence.length] = 'document.'+e.type;
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};
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orange.ondragend = function (e) {
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sequence = sequence.join('=>')
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var desiredsequence = (['orange.dragenter','orange.dragover','html.dragenter','document.dragenter','orange.dragleave','blue.dragenter','document.dragenter','document.dragenter','orange.dragenter','orange.dragover','orange.drop']).join('=>')
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if( sequence == desiredsequence ) {
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document.getElementsByTagName('div')[2].textContent = 'PASS';
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} else {
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document.getElementsByTagName('div')[2].textContent = 'FAIL, got: '+sequence+' instead of: '+desiredsequence;
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}
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};
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};
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]]></script>
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</head>
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<!--body-->
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<div draggable="true"></div><div></div>
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<div> </div>
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<p>Drag the orange square onto the blue square, then back to the orange square, and release it.</p>
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<noscript><p>Enable JavaScript and reload</p></noscript>
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<!--/body-->
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</html> |