Split login view into password and sso components

Signed-off-by: RMidhunSuresh <rmidhunsuresh@gmail.com>

src/domain/LoginViewModel.js

@@ -1,120 +0,0 @@
-/*
-Copyright 2020 Bruno Windels <bruno@windels.cloud>
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-import {ViewModel} from "./ViewModel.js";
-import {SessionLoadViewModel} from "./SessionLoadViewModel.js";
-
-function normalizeHomeserver(homeServer) {
-    try {
-        return new URL(homeServer).origin;
-    } catch (err) {
-        return new URL(`https://${homeServer}`).origin;
-    }
-}
-
-export class LoginViewModel extends ViewModel {
-    constructor(options) {
-        super(options);
-        const {ready, defaultHomeServer, createSessionContainer} = options;
-        this._createSessionContainer = createSessionContainer;
-        this._ready = ready;
-        this._defaultHomeServer = defaultHomeServer;
-        this._sessionContainer = null;
-        this._loadViewModel = null;
-        this._loadViewModelSubscription = null;
-        this._supportsSSOLogin = false;
-        this.queryLogin();
-    }
-
-    get defaultHomeServer() { return this._defaultHomeServer; }
-
-    get loadViewModel() {return this._loadViewModel; }
-
-    get isBusy() {
-        if (!this._loadViewModel) {
-            return false;
-        } else {
-            return this._loadViewModel.loading;
-        }
-    }
-
-    async queryLogin(homeServer = this.defaultHomeServer) {
-        // See if we support SSO, if so shows SSO link
-        /* For this, we'd need to poll queryLogin before we do login()
-        */
-        if (!this._sessionContainer) {
-            this._sessionContainer = this._createSessionContainer();
-        }
-        const normalizedHS = normalizeHomeserver(homeServer);
-        try {
-            this.loginOptions = await this._sessionContainer.queryLogin(normalizedHS);
-            this._supportsSSOLogin = !!this.loginOptions.sso;
-        }
-        catch (e) {
-            // Something went wrong, assume SSO is not supported
-            this._supportsSSOLogin = false;
-            console.error("Could not query login methods supported by the homeserver");
-        }
-        this.emitChange("supportsSSOLogin");
-    }
-
-    async login(username, password, homeserver) {
-        homeserver = normalizeHomeserver(homeserver);
-        this._loadViewModelSubscription = this.disposeTracked(this._loadViewModelSubscription);
-        if (this._loadViewModel) {
-            this._loadViewModel = this.disposeTracked(this._loadViewModel);
-        }
-        this._loadViewModel = this.track(new SessionLoadViewModel(this.childOptions({
-            createAndStartSessionContainer: async () => {
-                if (this.loginOptions.password) {
-                    this._sessionContainer.startWithLogin(this.loginOptions.password(username, password));
-                }
-                return this._sessionContainer;
-            },
-            ready: sessionContainer => {
-                // make sure we don't delete the session in dispose when navigating away
-                this._sessionContainer = null;
-                this._ready(sessionContainer);
-            },
-            homeserver,
-        })));
-        this._loadViewModel.start();
-        this.emitChange("loadViewModel");
-        this._loadViewModelSubscription = this.track(this._loadViewModel.disposableOn("change", () => {
-            if (!this._loadViewModel.loading) {
-                this._loadViewModelSubscription = this.disposeTracked(this._loadViewModelSubscription);
-            }
-            this.emitChange("isBusy");
-        }));
-    }
-
-    get cancelUrl() {
-        return this.urlCreator.urlForSegment("session");
-    }
-
-    get supportsSSOLogin() {
-        return this._supportsSSOLogin;
-    }
-
-    dispose() {
-        super.dispose();
-        if (this._sessionContainer) {
-            // if we move away before we're done with initial sync
-            // delete the session
-            this._sessionContainer.deleteSession();
-        }
-    }
-}

src/domain/RootViewModel.js

@@ -16,7 +16,7 @@ limitations under the License.
 
 import {SessionViewModel} from "./session/SessionViewModel.js";
 import {SessionLoadViewModel} from "./SessionLoadViewModel.js";
-import {LoginViewModel} from "./LoginViewModel.js";
+import {LoginViewModel} from "./login/LoginViewModel.js";
 import {SessionPickerViewModel} from "./SessionPickerViewModel.js";
 import {ViewModel} from "./ViewModel.js";
 
@@ -42,7 +42,8 @@ export class RootViewModel extends ViewModel {
     async _applyNavigation(shouldRestoreLastUrl) {
         const isLogin = this.navigation.observe("login").get();
         const sessionId = this.navigation.observe("session").get();
-        const SSOSegment = this.navigation.path.get("sso");
+        // TODO: why not observe?
+        const ssoSegment = this.navigation.path.get("sso");
         if (isLogin) {
             if (this.activeSection !== "login") {
                 this._showLogin();
@@ -67,8 +68,11 @@ export class RootViewModel extends ViewModel {
                     this._showSessionLoader(sessionId);
                 }
             }
-        } else if (SSOSegment) {
-            this._setSection(() => this.showCompletionView = true);
+        } else if (ssoSegment) {
+            this.urlCreator.normalizeUrl();
+            if (this.activeSection !== "login") {
+                this._showLogin({loginToken: ssoSegment.value});
+            }
         }
         else {
             try {
@@ -99,7 +103,7 @@ export class RootViewModel extends ViewModel {
         }
     }
 
-    _showLogin() {
+    _showLogin(options) {
         this._setSection(() => {
             this._loginViewModel = new LoginViewModel(this.childOptions({
                 defaultHomeServer: this.platform.config["defaultHomeServer"],
@@ -116,6 +120,7 @@ export class RootViewModel extends ViewModel {
                     this._pendingSessionContainer = sessionContainer;
                     this.navigation.push("session", sessionContainer.sessionId);
                 },
+                ...options
             }));
         });
     }
@@ -152,8 +157,6 @@ export class RootViewModel extends ViewModel {
             return "picker";
         } else if (this._sessionLoadViewModel) {
             return "loading";
-        } else if (this.showCompletionView) {
-            return "sso";
         } else {
             return "redirecting";
         }

src/domain/login/LoginViewModel.js

@@ -0,0 +1,105 @@
+/*
+Copyright 2020 Bruno Windels <bruno@windels.cloud>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {ViewModel} from "../ViewModel.js";
+import {PasswordLoginViewModel} from "./PasswordLoginViewModel.js";
+import {SSOLoginViewModel} from "./SSOLoginViewModel.js";
+import {normalizeHomeserver} from "./common.js";
+
+export class LoginViewModel extends ViewModel {
+    constructor(options) {
+        super(options);
+        const {ready, defaultHomeServer, createSessionContainer, loginToken} = options;
+        this._createSessionContainer = createSessionContainer;
+        this._ready = ready;
+        this._defaultHomeServer = defaultHomeServer;
+        this._loginToken = loginToken;
+        this._sessionContainer = this._createSessionContainer();
+        this._loginOptions = null;
+        this._start();
+    }
+
+    get passwordLoginViewModel() { return this._passwordLoginViewModel; }
+    get ssoLoginViewModel() { return this._ssoLoginViewModel; }
+    get loadViewModel() {return this._loadViewModel; }
+
+    async _start() {
+        if (this._loginToken) {
+            this._ssoLoginViewModel = this.track(new SSOLoginViewModel(this.childOptions({loginToken: this._loginToken})));
+            this.emitChange("ssoLoginViewModel");
+        }
+        else {
+            const defaultHomeServer = normalizeHomeserver(this._defaultHomeServer);
+            await this.queryLogin(defaultHomeServer);
+            this._showPasswordLogin();
+            this._showSSOLogin(defaultHomeServer);
+        }
+    }
+
+    _showPasswordLogin() {
+        this._passwordLoginViewModel = new PasswordLoginViewModel(this.childOptions({defaultHomeServer: this._defaultHomeServer}));
+        const observable = this._passwordLoginViewModel.homeserverObservable;
+        this.track(observable.subscribe(newHomeServer => this._onHomeServerChange(newHomeServer)));
+        this.emitChange("passwordLoginViewModel");
+    }
+
+    _showSSOLogin(homeserver) {
+        this._ssoLoginViewModel = this.disposeTracked(this._ssoLoginViewModel);
+        this.emitChange("ssoLoginViewModel");
+        if (this._loginOptions?.sso && !this._loginToken) {
+            this._ssoLoginViewModel = this.track(new SSOLoginViewModel(this.childOptions({homeserver})));
+            this.emitChange("ssoLoginViewModel");
+        }
+    }
+
+    async queryLogin(homeserver) {
+        try {
+            this._loginOptions = await this._sessionContainer.queryLogin(homeserver);
+        }
+        catch (e) {
+            this._loginOptions = null;
+            console.error("Could not query login methods supported by the homeserver");
+        }
+    }
+
+    async _onHomeServerChange(homeserver) {
+        const normalizedHS = normalizeHomeserver(homeserver);
+        await this.queryLogin(normalizedHS);
+        this._showSSOLogin(normalizedHS);
+    }
+
+    childOptions(options) {
+        return {
+            ...super.childOptions(options),
+            ready: sessionContainer => {
+                // make sure we don't delete the session in dispose when navigating away
+                this._sessionContainer = null;
+                this._ready(sessionContainer);
+            },
+            sessionContainer: this._sessionContainer,
+            loginOptions: this._loginOptions
+        }
+    }
+
+    dispose() {
+        super.dispose();
+        if (this._sessionContainer) {
+            // if we move away before we're done with initial sync
+            // delete the session
+            this._sessionContainer.deleteSession();
+        }
+    }
+}

src/domain/login/PasswordLoginViewModel.js

@@ -0,0 +1,77 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {ViewModel} from "../ViewModel.js";
+import {SessionLoadViewModel} from "../SessionLoadViewModel.js";
+import {ObservableValue} from "../../observable/ObservableValue.js";
+import {normalizeHomeserver} from "./common.js";
+
+export class PasswordLoginViewModel extends ViewModel {
+    constructor(options) {
+        super(options);
+        const {ready, defaultHomeServer, loginOptions, sessionContainer} = options;
+        this._ready = ready;
+        this._defaultHomeServer = defaultHomeServer;
+        this._sessionContainer = sessionContainer;
+        this._loadViewModel = null;
+        this._loadViewModelSubscription = null;
+        this._loginOptions = loginOptions;
+        this._homeserverObservable = new ObservableValue(this._defaultHomeServer);
+    }
+
+    get defaultHomeServer() { return this._defaultHomeServer; }
+    get loadViewModel() {return this._loadViewModel; }
+    get homeserverObservable() { return this._homeserverObservable; }
+    get cancelUrl() { return this.urlCreator.urlForSegment("session"); }
+
+    updateHomeServer(homeserver) {
+        this._homeserverObservable.set(homeserver);
+    }
+
+    get isBusy() {
+        if (!this._loadViewModel) {
+            return false;
+        } else {
+            return this._loadViewModel.loading;
+        }
+    }
+
+    async login(username, password, homeserver) {
+        homeserver = normalizeHomeserver(homeserver);
+        this._loadViewModelSubscription = this.disposeTracked(this._loadViewModelSubscription);
+        if (this._loadViewModel) {
+            this._loadViewModel = this.disposeTracked(this._loadViewModel);
+        }
+        this._loadViewModel = this.track(new SessionLoadViewModel(this.childOptions({
+            createAndStartSessionContainer: async () => {
+                if (this._loginOptions.password) {
+                    this._sessionContainer.startWithLogin(this._loginOptions.password(username, password));
+                }
+                return this._sessionContainer;
+            },
+            ready: this._ready,
+            homeserver,
+        })));
+        this._loadViewModel.start();
+        this.emitChange("loadViewModel");
+        this._loadViewModelSubscription = this.track(this._loadViewModel.disposableOn("change", () => {
+            if (!this._loadViewModel.loading) {
+                this._loadViewModelSubscription = this.disposeTracked(this._loadViewModelSubscription);
+            }
+            this.emitChange("isBusy");
+        }));
+    }
+}

src/domain/login/SSOLoginViewModel.js

@@ -0,0 +1,46 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {ViewModel} from "../ViewModel.js";
+
+export class SSOLoginViewModel extends ViewModel{
+    constructor(options) {
+        super(options);
+        const {
+            loginToken,
+            sessionContainer,
+            loginOptions,
+            ready,
+            homeserver
+        } = options;
+        this._loginToken = loginToken;
+        this._ready = ready;
+        this._sessionContainer = sessionContainer;
+        this._homeserver = homeserver;
+        this._loadViewModelSubscription = null;
+        this._loadViewModel = null;
+        this._loginOptions = loginOptions;
+    }
+
+    get loadViewModel() { return this._loadViewModel; }
+    get supportsSSOLogin() { return this._supportsSSOLogin; }
+    get isSSOCompletion() { return !!this._loginToken; }
+
+
+    async startSSOLogin() {
+        console.log("Next PR");
+    }
+}

src/domain/login/common.js

@@ -0,0 +1,23 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+export function normalizeHomeserver(homeServer) {
+    try {
+        return new URL(homeServer).origin;
+    } catch (err) {
+        return new URL(`https://${homeServer}`).origin;
+    }
+}

src/platform/web/ui/RootView.js

@@ -20,7 +20,6 @@ import {SessionLoadView} from "./login/SessionLoadView.js";
 import {SessionPickerView} from "./login/SessionPickerView.js";
 import {TemplateView} from "./general/TemplateView.js";
 import {StaticView} from "./general/StaticView.js";
-import {CompleteSSOView} from "./login/CompleteSSOView.js";
 
 export class RootView extends TemplateView {
     render(t, vm) {
@@ -43,8 +42,6 @@ export class RootView extends TemplateView {
                     return new StaticView(t => t.p("Redirecting..."));
                 case "loading":
                     return new SessionLoadView(vm.sessionLoadViewModel);
-                case "sso":
-                    return new CompleteSSOView();
                 default:
                     throw new Error(`Unknown section: ${vm.activeSection}`);
             }

src/platform/web/ui/login/CompleteSSOView.js

@@ -15,9 +15,15 @@ limitations under the License.
 */
 
 import {TemplateView} from "../general/TemplateView.js";
+import {SessionLoadStatusView} from "./SessionLoadStatusView.js";
 
 export class CompleteSSOView extends TemplateView {
     render(t) {
-        return t.div({ className: "CompleteSSOView" }, "Finishing up SSO Login ...");
+        return t.div({ className: "CompleteSSOView" },
+            [
+                "Finishing up SSO Login ...",
+                t.mapView(vm => vm.loadViewModel, loadViewModel => loadViewModel ? new SessionLoadStatusView(loadViewModel) : null)
+            ]
+        );
     }
 }

src/platform/web/ui/login/LoginView.js

@@ -16,63 +16,31 @@ limitations under the License.
 
 import {TemplateView} from "../general/TemplateView.js";
 import {hydrogenGithubLink} from "./common.js";
-import {SessionLoadStatusView} from "./SessionLoadStatusView.js";
+import {PasswordLoginView} from "./PasswordLoginView.js";
+import {CompleteSSOView} from "./CompleteSSOView.js";
 
 export class LoginView extends TemplateView {
-    render(t, vm) {
-        const disabled = vm => !!vm.isBusy;
-        const username = t.input({
-            id: "username",
-            type: "text",
-            placeholder: vm.i18n`Username`,
-            disabled
-        });
-        const password = t.input({
-            id: "password",
-            type: "password",
-            placeholder: vm.i18n`Password`,
-            disabled
-        });
-        const homeserver = t.input({
-            id: "homeserver",
-            type: "text",
-            placeholder: vm.i18n`Your matrix homeserver`,
-            value: vm.defaultHomeServer,
-            onChange: () => vm.queryLogin(homeserver.value),
-            disabled
-        });
-        
-        return t.div({className: "PreSessionScreen"}, [
-            t.div({className: "logo"}),
-            t.div({className: "LoginView form"}, [
-                t.h1([vm.i18n`Sign In`]),
-                t.if(vm => vm.error, t => t.div({className: "error"}, vm => vm.error)),
-                t.form({
-                    onSubmit: evnt => {
-                        evnt.preventDefault();
-                        vm.login(username.value, password.value, homeserver.value);
+    render(t) {
+        return t.div({ className: "PreSessionScreen" }, [
+            t.div({ className: "logo" }),
+            t.mapView(vm => vm.passwordLoginViewModel, vm => vm? new PasswordLoginView(vm): null),
+            t.mapView(vm => vm.ssoLoginViewModel, vm => {
+                if (vm?.isSSOCompletion) {
+                    return new CompleteSSOView(vm);
                 }
-                }, [
-                    t.div({className: "form-row"}, [t.label({for: "username"}, vm.i18n`Username`), username]),
-                    t.div({className: "form-row"}, [t.label({for: "password"}, vm.i18n`Password`), password]),
-                    t.div({className: "form-row"}, [t.label({for: "homeserver"}, vm.i18n`Homeserver`), homeserver]),
-                    t.mapView(vm => vm.loadViewModel, loadViewModel => loadViewModel ? new SessionLoadStatusView(loadViewModel) : null),
-                    t.div({className: "button-row"}, [
-                        t.a({
-                            className: "button-action secondary",
-                            href: vm.cancelUrl
-                        }, [vm.i18n`Go Back`]),
-                        t.button({
-                            className: "button-action primary",
-                            type: "submit"
-                        }, vm.i18n`Log In`),
-                    ]),
-                ]),
-                t.if(vm => vm.supportsSSOLogin, () => t.button({className: "SSO"}, "Login with SSO")),
+                else if (vm) {
+                    return new SSOLoginView(vm);
+                }
+                return null;
+            } ),
             // use t.mapView rather than t.if to create a new view when the view model changes too
             t.p(hydrogenGithubLink(t))
-            ])
         ]);
     }
 }
 
+class SSOLoginView extends TemplateView {
+    render(t, vm) {
+        return t.button({className: "SSO", type: "button", onClick: () => vm.startSSOLogin()}, "Login with SSO");
+    }
+}

src/platform/web/ui/login/PasswordLoginView.js

@@ -0,0 +1,71 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {TemplateView} from "../general/TemplateView.js";
+import {SessionLoadStatusView} from "./SessionLoadStatusView.js";
+
+export class PasswordLoginView extends TemplateView {
+    render(t, vm) {
+        const disabled = vm => !!vm.isBusy;
+        const username = t.input({
+            id: "username",
+            type: "text",
+            placeholder: vm.i18n`Username`,
+            disabled
+        });
+        const password = t.input({
+            id: "password",
+            type: "password",
+            placeholder: vm.i18n`Password`,
+            disabled
+        });
+        const homeserver = t.input({
+            id: "homeserver",
+            type: "text",
+            placeholder: vm.i18n`Your matrix homeserver`,
+            value: vm.defaultHomeServer,
+            onChange: () => vm.updateHomeServer(homeserver.value),
+            disabled
+        });
+        
+        return t.div({className: "LoginView form"}, [
+            t.h1([vm.i18n`Sign In`]),
+            t.if(vm => vm.error, t => t.div({ className: "error" }, vm => vm.error)),
+            t.form({
+                onSubmit: evnt => {
+                    evnt.preventDefault();
+                    vm.login(username.value, password.value, homeserver.value);
+                }
+            }, [
+                t.div({ className: "form-row" }, [t.label({ for: "username" }, vm.i18n`Username`), username]),
+                t.div({ className: "form-row" }, [t.label({ for: "password" }, vm.i18n`Password`), password]),
+                t.div({ className: "form-row" }, [t.label({ for: "homeserver" }, vm.i18n`Homeserver`), homeserver]),
+                t.mapView(vm => vm.loadViewModel, loadViewModel => loadViewModel ? new SessionLoadStatusView(loadViewModel) : null),
+                t.div({ className: "button-row" }, [
+                    t.a({
+                        className: "button-action secondary",
+                        href: vm.cancelUrl
+                    }, [vm.i18n`Go Back`]),
+                    t.button({
+                        className: "button-action primary",
+                        type: "submit"
+                    }, vm.i18n`Log In`),
+                ]),
+            ])
+        ]);
+    }
+}
+