Hello Sergey, If the login url, the iframe url and the main application url are one the same domain then these frames will be able to directly invoke javascript on each other. If you are going to a different domain (i.e. the login url is on https:// instead of http://) then this will not work. Instead you will have to revert to a complex inter frame messaging mechanism [1]. Please note that the latest chrome and safari browsers don't allow the window.name transport mechanism to work anymore, instead you'll have to use the HTML 5 postMessage mechanism.
[1] http://softwareas.com/cross-domain-communication-with-iframes On Jul 18, 12:31 am, Sergey Ponomarev <[email protected]> wrote: > Hi, i'm trying to implement login module as a GWT application which is > placed in an iframe and calls external event handlers on login events. > The problem is i can't set handler function if iframe's DOM from > parent page. > > The host page looks like > > ==================================================== > <html> > <head> > <title>Test</title> > </head> > <body> > <script type="text/javascript"> > function register_login_bindings() { > var wnd = > document.getElementById("loginFrame").contentWindow; > > wnd.su_vistar_bindings = new Array(); > wnd.su_vistar_bindings["loginForm"] = { > onLoginSucceeded: [ > function(login, sessionId) {alert("Login > succeed for " + login + ": " + sessionId);} > ], > > onLoginFailed: [ > function(login) {alert("ggLogin failed for " + > login);} > ] > }; > } > </script> > <iframe id="loginFrame" > src="http://localhost:35282/LoginService/"; > style="width: 100%; height: 100%; border: none;" > onload="register_login_bindings()"> > </iframe> > </body> > </html> > ==================================================== > > It works for a usual site, but doesn't work when iframe's content is a > GWT application. > The error is: > ======================================================= > !:@8?BC <file://> >B:070=> 2 @0...@5h5=88 =0 CAB0=>2:C A2>9AB20 > Window.su_vistar_bindings =0 <http://localhost:35282>. > [Break on this error] wnd.su_vistar_bindings = new Array(); > ======================================================= > > I've read already that it's impossible to get to external DOM content > from iframed GWT app (correct please if it's wrong), but I hope that > changing iframe's document content is legal. Is it? Else how to create > modules which could be embedded in any html page using GWT and react > on it's events? > > Thank you. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
