One method deserves special attention: elementFromPoint(). This method expects two coordinates and then reports which HTML element is located at these coordinates. This is a godsend for drag-and-drop scripts. If the user drops an element, get the mouse coordinates and use this method to find out which HTML element is located at these coordinates.One catch: you first have to temporarily hide the dragged element, because otherwise elementFromPoint() would always report the dragged element — after all it itself is the topmost element under the mouse.

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PPK reports on the new W3C CSSOM spec. I’ve wanted a getElementFromPoint() method forever.

Tags: dom, css, javascript

This entry was posted on Tuesday, March 4th, 2008 at 11:34 am and is filed under css, dhtml, javascript. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.