Pass screenAfterLogin through SSO in the callback url

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/structures/auth/Login.js

@@ -355,7 +355,8 @@ export default createReactClass({
             ev.preventDefault();
             ev.stopPropagation();
             const ssoKind = step === 'm.login.sso' ? 'sso' : 'cas';
-            PlatformPeg.get().startSingleSignOn(this._loginLogic.createTemporaryClient(), ssoKind);
+            PlatformPeg.get().startSingleSignOn(this._loginLogic.createTemporaryClient(), ssoKind,
+                this.props.fragmentAfterLogin);
         } else {
             // Don't intercept - just go through to the register page
             this.onRegisterClick(ev);
@@ -628,7 +629,9 @@ export default createReactClass({
                 <SSOButton
                     className="mx_Login_sso_link mx_Login_submit"
                     matrixClient={this._loginLogic.createTemporaryClient()}
-                    loginType={loginType} />
+                    loginType={loginType}
+                    fragmentAfterLogin={this.props.fragmentAfterLogin}
+                />
             </div>
         );
     },

src/components/structures/auth/SoftLogout.js

@@ -244,7 +244,9 @@ export default class SoftLogout extends React.Component {
                     <p>{introText}</p>
                     <SSOButton
                         matrixClient={MatrixClientPeg.get()}
-                        loginType={this.state.loginView === LOGIN_VIEW.CAS ? "cas" : "sso"} />
+                        loginType={this.state.loginView === LOGIN_VIEW.CAS ? "cas" : "sso"}
+                        fragmentAfterLogin={this.props.fragmentAfterLogin}
+                    />
                 </div>
             );
         }