Baseline Widely available
DataTransfer.types
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<!DOCTYPE html>
<html lang=en>
<title>DataTransfer.{types,items} ããããã£ã®ä¾</title>
<meta content="width=device-width">
<style>
div {
margin: 0em;
padding: 2em;
}
#target {
border: 1px solid black;
}
</style>
<script>
function dragstart_handler(ev) {
console.log("dragStart: target.id = " + ev.target.id);
// ãã©ãã°å
容ã«ãã®è¦ç´ ã® ID ã追å ãããããããã³ãã©ã¼ãã©ã®è¦ç´ ã
// ããªã¼ã«è¿½å ããã°ããããç¥ããã¨ãã§ããããã«ãã¾ãã
ev.dataTransfer.setData("text/plain", ev.target.id);
ev.dataTransfer.effectAllowed = "move";
}
function drop_handler(ev) {
console.log("drop: target.id = " + ev.target.id);
ev.preventDefault();
// ã¿ã¼ã²ããã® ID ãåå¾ããç§»åããè¦ç´ ãã¿ã¼ã²ããã® DOM ã«è¿½å ãã¾ãã
const data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
// ããããã®å½¢å¼ã表示ãã
if (ev.dataTransfer.types != null) {
for (let i=0; i < ev.dataTransfer.types.length; i++) {
console.log("... types[" + i + "] = " + ev.dataTransfer.types[i]);
}
}
// ããããã®é
ç®ã® "kind" 㨠"type" ã表示ãã
if (ev.dataTransfer.items != null) {
for (let i=0; i < ev.dataTransfer.items.length; i++) {
console.log("... items[" + i + "].kind = " + ev.dataTransfer.items[i].kind + " ; type = " + ev.dataTransfer.items[i].type);
}
}
}
function dragover_handler(ev) {
console.log("dragOver");
ev.preventDefault();
// dropEffect ã move ã«è¨å®ãã
ev.dataTransfer.dropEffect = "move"
}
</script>
<body>
<h1>Examples of <code>DataTransfer</code>.{<code>types</code>, <code>items</code>} properties</h1>
<ul>
<li id="i1" ondragstart="dragstart_handler(event);" draggable="true">é
ç® 1 ãããããã¾ã¼ã³ã¸ãã©ãã°ãã¦ãã ãã</li>
<li id="i2" ondragstart="dragstart_handler(event);" draggable="true">é
ç® 2 ãããããã¾ã¼ã³ã¸ãã©ãã°ãã¦ãã ãã</li>
</ul>
<div id="target" ondrop="drop_handler(event);" ondragover="dragover_handler(event);">ããããã¾ã¼ã³</div>
</body>
</html>
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