I have a HTML5 UI and a Java backend and want to avoid rebuilding the HTML ui in plain java, so my idea was to run a local webserver and use a webview to render it in a "native" window. The solution seems to be to use a JavaFX WebView which can be embedded in swing. On the paper it sounds great (especially since they claim to use WebKit which has a significantly better performance for my UI in Chrome / Safari).
It works, but: the performance is INCREDIBLY BAD. Orders of magnitude slower than the same thing in Chrome, Safari (or even the slower Firefox). It is literally unusable (my UI makes quite heavy use of JQuery / JS). Btw, I am using the code from this post.
The question is:
Can anybody second my experience? Am I simply doing something wrong or is this caused by JavaFX and thus "normal"?
Any better idea how to achieve this? I am currently simply firing up the system browser which works but is not as nice (does not look as integrated).
I have used WebView quite a bit and usually the performance was perfectly fine and very usable.
The biggest issue I had with WebView is that it is not quite as stable for cutting edge features and intensive use as other browsers, but not really any serious performance issues.
Here are a few benchmark stats (WebView version used was sourced from JavaFX 2.2 build 9):
Running a html5 test to test html5 compliance (scores out of 500):
Chrome 19 402 + 13 bonus points Firefox 12 345 + 9 bonus points WebView 2.2b9 296 + 7 bonus points IE 9.0.6 138 + 5 bonus points
Running an acid3 test, webview scores 100/100 same as the other test browsers, but, like IE9, the final rendering has a slight imperfection.
IE 9.0.6 146.7ms Chrome 19 151.5ms Firefox 12 185.8ms WebView 2.2b9 199.5ms
Chrome 19 15323 Firefox 12 9557 WebView 2.2b9 5145 IE 9.0.6 3661
Chrome 19 2416.8ms Firefox 12 2112.9ms WebView 2.2b9 7988.9ms IE 9.0.6 9403.0ms
Spinning 3D buddha (higher is better):
Chrome 19 60fps Firefox 12 43fps IE 9.0.6 16fps WebView 2.2b9 7fps
JQuery test suite execution (lower is better):
Chrome 19 21826ms WebView 2.2b9 22742ms Firefox 12 23554ms IE 9.0.6 28247ms
Based on the above benchmarks (run on my Windows 7 desktop), as long as WebView is stable and functional enough for you, then performance of WebView vs other browsers should not be an issue (as long as your app does not feature a lot of 3D spinning buddhas . . . :-).