Created attachment 659639 [details] test case User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20100101 Firefox/15.0.1 Build ID: 20120905151427 Steps to reproduce: View the attached test case on a Nexus S (with Android 4.1.1). Touch near the bottom-right corner of the screen. Actual results: Touch coordinates (event.touches.clientX/Y) are different from what they should be. With the attached test case (which contains a meta viewport element), touching at the bottom right corner of the screen gives me values like this: container width: 480, container height: 690, client X: 315, client Y: 459 (clientX/Y values are approximate, they vary from touch to touch) if I comment out the meta viewport, I get values like: container width: 480, container height: 690, client X: 954, client Y: 1354 Expected results: Touch coordinates should correspond to the page element sizes/positions. If the element receiving events has top left at (0, 0), then touches near the bottom right corner of the element should have coordinates close to the width/height of the element. With the stock android browser, with the meta viewport element, bottom-right-corner touches give me values like: container width: 320, container height: 456, client X: 312, client Y: 451 and without the meta viewport element, I get values like: container width: 980, container height: 1397, client X: 954, client Y: 1380
Attachment #659639 - Attachment mime type: text/plain → text/html
This works for me on aurora and nightly builds. I believe it was fixed by bug 771575. I'll request that be uplifted to beta as well, but in the meantime there is a workaround described at https://bugzilla.mozilla.org/show_bug.cgi?id=771575#c3 (basically, use a setTimeout(0, ...) before grabbing the width and height) that may work for you.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 771575
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