getClientRects javascript method supported on iPhone?
- by genericdan
Trying to find the top-most visible element in a UIWebView. I am using a JS method to do this, which works great in Safari, but never executes past the getClientRects method when executed from a UIWebView. The elements I'm interested are all of class="h".
Here's the javascript which is called from [webView stringByEvaluatingJavaScriptFromString:@"findTopElement()"];
Javascript:
function findTopElement() {
var pars = document.getElementsByClassName("h");
alert("findingTopElement: num pars:" + pars.length);
for (var i = 0; i < pars.length; i++) {
var para = pars[i];
alert("checking par " + para.id);
var rects = para.getClientRects();
alert("checking rects " + rects.length);
for (var j = 0; j < rects.length; j++) {
var r = rects[j];
if (r.top > 0 && r.bottom > 0) {
alert("success: " + para.id);
return para.id;
}
}
}
return -1;
}
Is it possible element getClientRects function is not supported in a UIWebView?
