For some reason, passing the username around via the URL seems like a code
smell to me.
I'm not sure if it's actually better or not, but I store the User object
from the server (less password hash) in a singleton (and the session, in
case of a full refresh). I also have all my Place content setup so I just
change it within a Panel (TabLayoutPanel, though Dock or Stack would work,
too) while leaving navigation and header alone.
This removes putting user information in the URL, so people can share
deep-links to content without sharing usernames by default.
On Wednesday, June 1, 2016 at 7:09:20 AM UTC-5, Olar Andrei wrote:
>
> Hello,
>
> I've tried a little trick today, because I still belive the browser
> downloads code he does not need before he actually needs it.
>
> I placed this:
> Window.Location.reload();
> inside my *UserViewImpl, *so it would reload after the login.
>
> The problem is that when the application starts with the *LoginViewImpl *the
> page refreshes every second. So I'm not even in the UserViewImpl, so I
> didn't log in, and the page gets the code from the UserViewImpl and starts
> refreshing.
> The thing is I've used code splitting in my application like this:
>
> *Login Button*
>
> loginButton.setHTML(LoginFormConstants.LOGIN_BUTTON);
> loginButton.addClickHandler(new ClickHandler() {
>
> @Override
> public void onClick(ClickEvent event) {
> final String username = usernameBox.getText();
> final String password = passwordBox.getText();
>
> // Is this good code splitting ?
> GWT.runAsync(new RunAsyncCallback() {
>
> @Override
> public void onSuccess() {
> performUserConnection(username, password);
> }
>
> @Override
> public void onFailure(Throwable reason) {
> // TODO Auto-generated method stub
> }
> });
> }
> });
>
> and *performUserConnection()*
>
> private static void performUserConnection(String username, String
> password) {
> DBConnectionAsync rpcService = (DBConnectionAsync)
> GWT.create(DBConnection.class);
> ServiceDefTarget target = (ServiceDefTarget) rpcService;
> String moduleRelativeURL = GWT.getModuleBaseURL() + "DBConnectionImpl";
> target.setServiceEntryPoint(moduleRelativeURL);
>
> rpcService.authenticateUser(username, password, new AsyncCallback<User>() {
>
> @Override
> public void onSuccess(User user) {
>
> if (user.getType().equals("User")) {
> String username = user.getUsername();
> presenter.goTo(new UserPlace(username));
> } else if (user.getType().equals("Admin")) {
> String username = user.getUsername();
> presenter.goTo(new AdminPlace(username));
> }
> }
>
> @Override
> public void onFailure(Throwable caught) {
> DialogBox dialogBox = createDialogBox();
> dialogBox.setGlassEnabled(true);
> dialogBox.setAnimationEnabled(true);
> dialogBox.center();
> dialogBox.show();
> }
> });
> }
>
> So the page should wait to see if connection was successful, and then
> download the code, right ? Why isn't this happening ?
>
> Thanks in advance
>
>
> marți, 31 mai 2016, 01:25:10 UTC+3, Olar Andrei a scris:
>>
>> My login based application, requires to always know the username of the
>> logged in user. (MVP) . So I'm getting the username from the url, but when
>> the page opens after the login succeeded, I can't get the username from the
>> url, because it does not appear to exists, but it is there. It only works
>> after a refresh. Then I'm able to get the username.
>>
>>
>> The URL is in the form
>> *http://127.0.0.1:8888/AdministrareBloc.html#AdminPlace:admin
>> <http://127.0.0.1:8888/AdministrareBloc.html#AdminPlace:admin>*, where
>> I'm splitting the String to only get the admin part.
>>
>>
>> I thought this is because it downloads the code before verifying the
>> user. So I placed a split point in my code like this: (I don't know if I
>> placed it correctly)
>>
>>
>> loginButton.addClickHandler(new ClickHandler() {
>>
>> @Override
>> public void onClick(ClickEvent event) {
>> final String username = usernameBox.getText();
>> final String password = passwordBox.getText();
>> GWT.runAsync(new RunAsyncCallback() {
>>
>> @Override
>> public void onSuccess() {
>> performUserConnection(username, password);
>> }
>>
>> @Override
>>
>> *Introduceți aici codul...* public void onFailure(Throwable
>> reason) {
>>
>> // TODO Auto-generated method stub
>> }
>> });
>> }
>> });
>>
>> private static void performUserConnection(String username, String password) {
>> DBConnectionAsync rpcService = (DBConnectionAsync)
>> GWT.create(DBConnection.class);
>> ServiceDefTarget target = (ServiceDefTarget) rpcService;
>> String moduleRelativeURL = GWT.getModuleBaseURL() + "DBConnectionImpl";
>> target.setServiceEntryPoint(moduleRelativeURL);
>>
>> rpcService.authenticateUser(username, password, new
>> AsyncCallback<User>() {
>>
>> @Override
>> public void onSuccess(User user) {
>>
>> if (user.getType().equals("User")) {
>> String username = user.getUsername();
>> presenter.goTo(new UserPlace(username));
>> } else if (user.getType().equals("Admin")) {
>> String username = user.getUsername();
>> presenter.goTo(new AdminPlace(username));
>> }
>> }
>>
>> }}
>>
>>
>> This is happening when the user clicks the login button. Is the split
>> point placed correclty, or not ? How can I get the username without needing
>> to refresh the page after a successful login ?
>>
>> Thanks in advance
>>
>
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