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| 1 | +/*! |
| 2 | + Copyright 2018 Propel http://propel.site/. All rights reserved. |
| 3 | + Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | + you may not use this file except in compliance with the License. |
| 5 | + You may obtain a copy of the License at |
| 6 | +
|
| 7 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +
|
| 9 | + Unless required by applicable law or agreed to in writing, software |
| 10 | + distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | + See the License for the specific language governing permissions and |
| 13 | + limitations under the License. |
| 14 | + */ |
| 15 | + |
| 16 | +import { Component, h } from "preact"; |
| 17 | +import * as db from "./db"; |
| 18 | +import { pushState, Router } from "./router"; |
| 19 | +import * as types from "./types"; |
| 20 | +import { equal } from "./util"; |
| 21 | + |
| 22 | +import { ErrorPage } from "./components/error"; |
| 23 | +import { GlobalHeader } from "./components/header"; |
| 24 | +import { Loading } from "./components/loading"; |
| 25 | +import { UserMenu } from "./components/menu"; |
| 26 | +import { Notebook } from "./components/notebook"; |
| 27 | +import { Profile } from "./components/profile"; |
| 28 | +import { Recent } from "./components/recent"; |
| 29 | + |
| 30 | +interface BindProps { |
| 31 | + [key: string]: (props: any) => Promise<any>; |
| 32 | +} |
| 33 | + |
| 34 | +interface BindState { |
| 35 | + data: { [key: string]: string }; |
| 36 | + error: string; |
| 37 | +} |
| 38 | + |
| 39 | +/** |
| 40 | + * This react HOC can be used to bind result of some async |
| 41 | + * methods to props of the given component (C). |
| 42 | + * see: https://reactjs.org/docs/higher-order-components.html |
| 43 | + * |
| 44 | + * const newComponent = bind(Component, { |
| 45 | + * async prop(props) { |
| 46 | + * const re = await someAsyncActions(); |
| 47 | + * return re; |
| 48 | + * } |
| 49 | + * }); |
| 50 | + */ |
| 51 | +function bind(C, bindProps: BindProps) { |
| 52 | + return class extends Component<any, BindState> { |
| 53 | + state = { data: null, error: null }; |
| 54 | + prevMatches = null; |
| 55 | + |
| 56 | + async loadData() { |
| 57 | + if (equal(this.props.matches, this.prevMatches)) return; |
| 58 | + this.prevMatches = this.props.matches; |
| 59 | + const data = {}; |
| 60 | + for (const key in bindProps) { |
| 61 | + if (!bindProps[key]) continue; |
| 62 | + try { |
| 63 | + data[key] = await bindProps[key](this.props); |
| 64 | + } catch (e) { |
| 65 | + this.setState({ data: null, error: e.message }); |
| 66 | + return; |
| 67 | + } |
| 68 | + } |
| 69 | + this.setState({ data, error: null }); |
| 70 | + } |
| 71 | + |
| 72 | + render() { |
| 73 | + this.loadData(); |
| 74 | + const { data, error } = this.state; |
| 75 | + if (error) return <ErrorPage message={error} />; |
| 76 | + if (!data) return <Loading />; |
| 77 | + return <C {...this.props} {...data} />; |
| 78 | + } |
| 79 | + }; |
| 80 | +} |
| 81 | + |
| 82 | +// An anonymous notebook doc for when users aren't logged in |
| 83 | +const anonDoc = { |
| 84 | + anonymous: true, |
| 85 | + cells: [], |
| 86 | + created: new Date(), |
| 87 | + owner: { |
| 88 | + displayName: "Anonymous", |
| 89 | + photoURL: require("./img/anon_profile.png"), |
| 90 | + uid: "" |
| 91 | + }, |
| 92 | + title: "Anonymous Notebook", |
| 93 | + updated: new Date() |
| 94 | +}; |
| 95 | + |
| 96 | +// TODO Move these components to ./pages.tsx. |
| 97 | +// tslint:disable:variable-name |
| 98 | +async function onNewNotebookClicked() { |
| 99 | + const nbId = await db.active.create(); |
| 100 | + // Redirect to new notebook. |
| 101 | + pushState(`/notebook/${nbId}`); |
| 102 | +} |
| 103 | + |
| 104 | +async function onPreviewClicked(nbId: string) { |
| 105 | + // Redirect to notebook. |
| 106 | + pushState(`/notebook/${nbId}`); |
| 107 | +} |
| 108 | + |
| 109 | +export const RecentPage = bind(Recent, { |
| 110 | + mostRecent() { |
| 111 | + return db.active.queryLatest(); |
| 112 | + }, |
| 113 | + async onClick() { |
| 114 | + return (nbId: string) => onPreviewClicked(nbId); |
| 115 | + }, |
| 116 | + async onNewNotebookClicked() { |
| 117 | + return () => onNewNotebookClicked(); |
| 118 | + } |
| 119 | +}); |
| 120 | + |
| 121 | +export const ProfilePage = bind(Profile, { |
| 122 | + notebooks(props) { |
| 123 | + const uid = props.matches.userId; |
| 124 | + return db.active.queryProfile(uid, 100); |
| 125 | + }, |
| 126 | + async onClick() { |
| 127 | + return (nbId: string) => onPreviewClicked(nbId); |
| 128 | + }, |
| 129 | + async onNewNotebookClicked() { |
| 130 | + return () => onNewNotebookClicked(); |
| 131 | + } |
| 132 | +}); |
| 133 | + |
| 134 | +export const NotebookPage = bind(Notebook, { |
| 135 | + initialDoc(props) { |
| 136 | + const nbId = props.matches.nbId; |
| 137 | + return nbId === "anonymous" |
| 138 | + ? Promise.resolve(anonDoc) |
| 139 | + : db.active.getDoc(nbId); |
| 140 | + }, |
| 141 | + save(props) { |
| 142 | + const nbId = props.matches.nbId; |
| 143 | + const cb = async doc => { |
| 144 | + if (doc.anonymous) return; |
| 145 | + if (!props.userInfo) return; |
| 146 | + if (props.userInfo.uid !== doc.owner.uid) return; |
| 147 | + try { |
| 148 | + await db.active.updateDoc(nbId, doc); |
| 149 | + } catch (e) { |
| 150 | + // TODO |
| 151 | + console.log(e); |
| 152 | + } |
| 153 | + }; |
| 154 | + return Promise.resolve(cb); |
| 155 | + }, |
| 156 | + clone(props) { |
| 157 | + const cb = async doc => { |
| 158 | + const cloneId = await db.active.clone(doc); |
| 159 | + // Redirect to new notebook. |
| 160 | + pushState(`/notebook/${cloneId}`); |
| 161 | + }; |
| 162 | + return Promise.resolve(cb); |
| 163 | + } |
| 164 | +}); |
| 165 | +// tslint:enable:variable-name |
| 166 | + |
| 167 | +export interface AppState { |
| 168 | + loadingAuth: boolean; |
| 169 | + userInfo: types.UserInfo; |
| 170 | +} |
| 171 | + |
| 172 | +export class App extends Component<{}, AppState> { |
| 173 | + state = { |
| 174 | + loadingAuth: true, |
| 175 | + userInfo: null |
| 176 | + }; |
| 177 | + |
| 178 | + unsubscribe: db.UnsubscribeCb; |
| 179 | + componentWillMount() { |
| 180 | + this.unsubscribe = db.active.subscribeAuthChange(userInfo => { |
| 181 | + this.setState({ loadingAuth: false, userInfo }); |
| 182 | + }); |
| 183 | + } |
| 184 | + |
| 185 | + componentWillUnmount() { |
| 186 | + this.unsubscribe(); |
| 187 | + } |
| 188 | + |
| 189 | + render() { |
| 190 | + const { userInfo } = this.state; |
| 191 | + return ( |
| 192 | + <div class="notebook"> |
| 193 | + <GlobalHeader subtitle="Notebook" subtitleLink="/"> |
| 194 | + <UserMenu userInfo={userInfo} /> |
| 195 | + </GlobalHeader> |
| 196 | + <Router> |
| 197 | + <RecentPage path="/" userInfo={userInfo} /> |
| 198 | + <NotebookPage path="/notebook/:nbId" userInfo={userInfo} /> |
| 199 | + <ProfilePage path="/user/:userId" userInfo={userInfo} /> |
| 200 | + <ErrorPage message="The page you're looking for doesn't exist." /> |
| 201 | + </Router> |
| 202 | + </div> |
| 203 | + ); |
| 204 | + } |
| 205 | +} |
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