Mouse cursor

[Dave Nottage 546]

3 hours ago, Dave Nottage said:

It appears Android's WebView does not like part of the JavaScript (it works on macOS and iOS). I'm looking into it

I discovered what the problem is: The "default" TWebBrowser implementation for Android uses loadUrl:

procedure TAndroidWebBrowserService.EvaluateJavaScript(const AJavaScript: string);
begin
  FWebView.loadUrl(StringToJString('javascript:' + AJavaScript));
  UpdateContentFromControl;
end;

Which I guess does not accept the JavaScript that I provided. In TWebBrowserExt, it uses the evaluateJavascript method:

procedure TPlatformWebBrowserExt.ExecuteJavaScript(const AJavaScript: string; const AHandler: TJavaScriptResultProc);
begin
  if FWebView <> nil then
    FWebView.evaluateJavascript(StringToJString(AJavaScript), CreateValueCallback(AHandler))
  else
    AHandler(cJavaScriptNullResult, -1);
end;

Which does work. I've now added a demo to the HowTo repository, which uses TWebBrowserExt, and it works on Android (as well as iOS and macOS)