Incorrect window.innerHeight when using WKWebView and shrinkView

[cjpearson]

Related to: https://bugs.webkit.org/show_bug.cgi?id=150634

On iOS 8 and 9, WKWebView subtracts the keyboard height from window.innerHeight. Since we already shrink the frame when shrinkView is enabled, this is not necessary and causes window.innerHeight to be too small.

[katamshut]

I am facing a problem on iOS. Not sure if this is releated to the plugin since it is not sure if the UIWebView fire the resize event when keyboar gets hidden (https://www.quirksmode.org/dom/events/resize_mobile.html).

I tested to listen to the resize event when the keyboard hides. It looks like it is quite random if the resize event is fired or not. The window.innerHeight gets adjusted everytime (just according to the fix #32 here).

I finally use this "selfmade" window innerHeight listerner to ensure my resize work to be done:

window.addEventListener('keyboardHeightWillChange', function () {
function onElementHeightChange(elm, callback){
var lastHeight = elm.innerHeight, newHeight;
(function run(){
newHeight = elm.innerHeight;
if( lastHeight != newHeight ){
callback();
clearTimeout(elm.onElementHeightChangeTimer);
return;
}
lastHeight = newHeight;

  if( elm.onElementHeightChangeTimer )
    clearTimeout(elm.onElementHeightChangeTimer);

  elm.onElementHeightChangeTimer = setTimeout(run, 1);
})();

}
onElementHeightChange(window, function(){
//do something
});
});