May 2012
Intermediate to advanced
280 pages
5h 36m
German
Content preview from HTML5 & CSS3 (Prags)Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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11.3 Native Unterstützung für Drag-and-Drop
Das Drag-and-Drop von Oberflächenelementen können wir unseren Benutzern schon eine ganze Weile mit JavaScript-Bibliotheken ermöglichen. Aber mittlerweile hat das W3C die Drag-and-Drop-Implementierung von Microsoft als Teil der HTML5-Spezifikation übernommen.[85] Sie wird von Firefox, Safari, Internet Explorer und Chrome unterstützt, ist aber faktisch das reinste Chaos.
Auf den ersten Blick scheint die Implementierung unkompliziert zu sein. Wir bezeichnen ein Element als „draggable“, bestimmen ein Element, das auf „fallen gelassene“ Elemente wartet, und führen einen bestimmten Code aus, wenn das geschieht.
In der Realität ist es nicht mal annähernd so einfach. Wir demonstrieren das an einer einfachen Drag-and-Drop-Oberfläche, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.