From cbcb270ed31876b69f1ca4b46c5b7e2a7e3df563 Mon Sep 17 00:00:00 2001
From: Nolan Lawson <nolan@nolanlawson.com>
Date: Thu, 18 Jan 2018 20:57:15 -0800
Subject: [PATCH] add explicit offline mode

---
 bin/build-sass.js                   |  4 +++-
 package-lock.json                   |  5 +++++
 package.json                        |  1 +
 routes/_components/Layout.html      | 14 +++++++++++++-
 routes/_components/Timeline.html    |  3 +--
 routes/_components/VirtualList.html |  2 +-
 routes/_utils/asyncModules.js       |  7 ++++++-
 routes/_utils/database/statuses.js  | 12 ++++--------
 scss/themes/_default.scss           |  4 +---
 scss/themes/_offline.scss           | 20 ++++++++++++++++++++
 templates/2xx.html                  |  3 ++-
 templates/main.js                   |  9 ++++++---
 templates/service-worker.js         |  3 ++-
 13 files changed, 65 insertions(+), 22 deletions(-)
 create mode 100644 scss/themes/_offline.scss

diff --git a/bin/build-sass.js b/bin/build-sass.js
index 1d0d357c..a4fcb160 100755
--- a/bin/build-sass.js
+++ b/bin/build-sass.js
@@ -15,6 +15,7 @@ const now = require('performance-now')
 
 const globalScss = path.join(__dirname, '../scss/global.scss')
 const defaultThemeScss = path.join(__dirname, '../scss/themes/_default.scss')
+const offlineThemeScss = path.join(__dirname, '../scss/themes/_offline.scss')
 const html2xxFile = path.join(__dirname, '../templates/2xx.html')
 const scssDir = path.join(__dirname, '../scss')
 const themesScssDir = path.join(__dirname, '../scss/themes')
@@ -37,7 +38,8 @@ function doWatch() {
 async function compileGlobalSass() {
   let results = await Promise.all([
     render({file: defaultThemeScss, outputStyle: 'compressed'}),
-    render({file: globalScss, outputStyle: 'compressed'})
+    render({file: globalScss, outputStyle: 'compressed'}),
+    render({file: offlineThemeScss, outputStyle: 'compressed'})
   ])
 
   let css = results.map(_ => _.css).join('')
diff --git a/package-lock.json b/package-lock.json
index f5a85226..c0863a5f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3310,6 +3310,11 @@
         "repeating": "2.0.1"
       }
     },
+    "indexeddb-getall-shim": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/indexeddb-getall-shim/-/indexeddb-getall-shim-1.3.1.tgz",
+      "integrity": "sha1-aOUV06zspHd+/9DP+ZGS248KXoY="
+    },
     "indexes-of": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/indexes-of/-/indexes-of-1.0.1.tgz",
diff --git a/package.json b/package.json
index 3a3d94d8..bab23e21 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
     "fg-loadcss": "^2.0.1",
     "font-awesome-svg-png": "^1.2.2",
     "glob": "^7.1.2",
+    "indexeddb-getall-shim": "^1.3.1",
     "intersection-observer": "^0.5.0",
     "intl-relativeformat": "^2.1.0",
     "lodash": "^4.17.4",
diff --git a/routes/_components/Layout.html b/routes/_components/Layout.html
index def3f340..87c2dbd1 100644
--- a/routes/_components/Layout.html
+++ b/routes/_components/Layout.html
@@ -1,4 +1,4 @@
-<:Window bind:innerHeight='innerHeight'/>
+<:Window bind:innerHeight bind:online />
 <Nav page={{page}} />
 
 <div class="container" on:scroll="onScroll(event)" ref:node>
@@ -12,15 +12,27 @@
 
   import debounce from 'lodash/debounce'
   import throttle from 'lodash/throttle'
+  import { toast } from '../_utils/toast'
   import { mark, stop } from '../_utils/marks'
 
   const SCROLL_EVENT_DELAY = 300
   const RESIZE_EVENT_DELAY = 700
+  const OFFLINE_DELAY = 1000
+
+  const notifyOffline = debounce(() => {
+    toast.say('You appear to be offline. You can still read toots while offline.')
+  }, OFFLINE_DELAY)
 
 	export default {
 	  oncreate() {
       mark('onCreate Layout')
       let node = this.refs.node
+      this.observe('online', online => {
+        document.body.classList.toggle('offline', !online)
+        if (!online) {
+          notifyOffline()
+        }
+      })
       this.observe('innerHeight', debounce(() => {
         // respond to window resize events
         this.store.set({
diff --git a/routes/_components/Timeline.html b/routes/_components/Timeline.html
index 6aa756e4..727afe4d 100644
--- a/routes/_components/Timeline.html
+++ b/routes/_components/Timeline.html
@@ -26,14 +26,13 @@
 
   export default {
     async oncreate() {
-      this.observe('online', e => console.log(e))
       let instanceName = this.store.get('currentInstance')
       let instanceData = this.store.get('currentInstanceData')
       let online = this.get('online')
       let statuses = online ?
         await getHomeTimeline(instanceName, instanceData.access_token, null, FETCH_LIMIT) :
         await getTimelineFromDatabaseAfter(null, FETCH_LIMIT)
-      if (!online) {
+      if (online) {
         insertStatusesIntoDatabase(statuses)
       }
       this.addStatuses(statuses)
diff --git a/routes/_components/VirtualList.html b/routes/_components/VirtualList.html
index 5bada12b..44519302 100644
--- a/routes/_components/VirtualList.html
+++ b/routes/_components/VirtualList.html
@@ -19,7 +19,7 @@
   import { virtualListStore } from '../_utils/virtualListStore'
   import { mark, stop } from '../_utils/marks'
 
-  const DISTANCE_FROM_BOTTOM_TO_FIRE = 400
+  const DISTANCE_FROM_BOTTOM_TO_FIRE = 200
 
   export default {
     oncreate () {
diff --git a/routes/_utils/asyncModules.js b/routes/_utils/asyncModules.js
index a665f40a..d1a45722 100644
--- a/routes/_utils/asyncModules.js
+++ b/routes/_utils/asyncModules.js
@@ -21,9 +21,14 @@ const importRequestIdleCallback = () => import(
   /* webpackChunkName: 'requestidlecallback' */ 'requestidlecallback'
   )
 
+const importIndexedDBGetAllShim = () => import(
+  /* webpackChunkName: 'indexeddb-getall-shim' */ 'indexeddb-getall-shim'
+  )
+
 export {
   importURLSearchParams,
   importTimeline,
   importIntersectionObserver,
-  importRequestIdleCallback
+  importRequestIdleCallback,
+  importIndexedDBGetAllShim
 }
\ No newline at end of file
diff --git a/routes/_utils/database/statuses.js b/routes/_utils/database/statuses.js
index d88852fa..3ee4b976 100644
--- a/routes/_utils/database/statuses.js
+++ b/routes/_utils/database/statuses.js
@@ -22,8 +22,8 @@ const dbPromise = new Promise((resolve, reject) => {
 
 function transformStatusForStorage(status) {
   status = cloneDeep(status)
-  status.pinafore_id_as_big_int = parseInt(status, 10)
-  status.pinafore_id_as_negative_big_int = -parseInt(status, 10)
+  status.pinafore_id_as_big_int = parseInt(status.id, 10)
+  status.pinafore_id_as_negative_big_int = -parseInt(status.id, 10)
   status.pinafore_stale = true
   return status
 }
@@ -34,19 +34,15 @@ export async function getTimelineAfter(max_id = null, limit = 20) {
     const tx = db.transaction(STORE, 'readonly')
     const store = tx.objectStore(STORE)
     const index = store.index('pinafore_id_as_negative_big_int')
-    let res
     let sinceAsNegativeBigInt = max_id === null ? null : -parseInt(max_id, 10)
     let query = sinceAsNegativeBigInt === null ? null : IDBKeyRange.lowerBound(sinceAsNegativeBigInt, false)
 
+    let res
     index.getAll(query, limit).onsuccess = (e) => {
-      console.log('done calling getAll()')
       res = e.target.result
     }
 
-    tx.oncomplete = () => {
-      console.log('complete')
-      resolve(res)
-    }
+    tx.oncomplete = () => resolve(res)
     tx.onerror = reject
   })
 }
diff --git a/scss/themes/_default.scss b/scss/themes/_default.scss
index eace05cd..fedc1162 100644
--- a/scss/themes/_default.scss
+++ b/scss/themes/_default.scss
@@ -8,10 +8,8 @@ $secondary-text-color: white;
 $toast-border: #fafafa;
 $toast-bg: #333;
 
-$whatever: royalblue;
-
 @import "_base.scss";
 
-:root {
+body {
   @include baseTheme();
 }
diff --git a/scss/themes/_offline.scss b/scss/themes/_offline.scss
new file mode 100644
index 00000000..32878043
--- /dev/null
+++ b/scss/themes/_offline.scss
@@ -0,0 +1,20 @@
+$main-theme-color: #999999;
+$body-bg-color: lighten($main-theme-color, 38%);
+$anchor-color: $main-theme-color;
+$main-text-color: #333;
+$border-color: #dadada;
+$main-bg-color: white;
+$secondary-text-color: white;
+$toast-border: #fafafa;
+$toast-bg: #333;
+
+@import "_base.scss";
+
+body.offline,
+body.theme-hotpants.offline,
+body.theme-majesty.offline,
+body.theme-oaken.offline,
+body.theme-scarlet.offline,
+body.theme-seafoam.offline {
+  @include baseTheme();
+}
diff --git a/templates/2xx.html b/templates/2xx.html
index cc7a0f73..59a29f1a 100644
--- a/templates/2xx.html
+++ b/templates/2xx.html
@@ -16,8 +16,9 @@
 
 	<style>
 /* auto-generated w/ build-sass.js */
-:root{--button-primary-bg:#6081e6;--button-primary-text:#fff;--button-primary-border:#132c76;--button-primary-bg-active:#456ce2;--button-primary-bg-hover:#6988e7;--button-bg:#e6e6e6;--button-text:#333;--button-border:#a7a7a7;--button-bg-active:#bfbfbf;--button-bg-hover:#f2f2f2;--input-border:#dadada;--anchor-text:#4169e1;--main-bg:#fff;--body-bg:#e8edfb;--body-text-color:#333;--main-border:#dadada;--svg-fill:#4169e1;--form-bg:#f7f7f7;--form-border:#c1c1c1;--nav-bg:#4169e1;--nav-border:#214cce;--nav-a-border:#4169e1;--nav-a-selected-border:#fff;--nav-a-selected-bg:#6d8ce8;--nav-svg-fill:#fff;--nav-text-color:#fff;--nav-a-selected-border-hover:#fff;--nav-a-selected-bg-hover:#839deb;--nav-a-bg-hover:#577ae4;--nav-a-border-hover:#4169e1;--nav-svg-fill-hover:#fff;--nav-text-color-hover:#fff;--action-button-fill-color:#839deb;--action-button-fill-color-hover:#99afef;--action-button-fill-color-active:#577ae4;--settings-list-item-bg:#fff;--settings-list-item-text:#4169e1;--settings-list-item-text-hover:#4169e1;--settings-list-item-border:#dadada;--settings-list-item-bg-active:#e6e6e6;--settings-list-item-bg-hover:#fafafa;--toast-bg:#333;--toast-border:#fafafa;--toast-text:#fff;--mask-bg:#333;--mask-svg-fill:#fff;--deemphasized-text-color:#666}
+body{--button-primary-bg:#6081e6;--button-primary-text:#fff;--button-primary-border:#132c76;--button-primary-bg-active:#456ce2;--button-primary-bg-hover:#6988e7;--button-bg:#e6e6e6;--button-text:#333;--button-border:#a7a7a7;--button-bg-active:#bfbfbf;--button-bg-hover:#f2f2f2;--input-border:#dadada;--anchor-text:#4169e1;--main-bg:#fff;--body-bg:#e8edfb;--body-text-color:#333;--main-border:#dadada;--svg-fill:#4169e1;--form-bg:#f7f7f7;--form-border:#c1c1c1;--nav-bg:#4169e1;--nav-border:#214cce;--nav-a-border:#4169e1;--nav-a-selected-border:#fff;--nav-a-selected-bg:#6d8ce8;--nav-svg-fill:#fff;--nav-text-color:#fff;--nav-a-selected-border-hover:#fff;--nav-a-selected-bg-hover:#839deb;--nav-a-bg-hover:#577ae4;--nav-a-border-hover:#4169e1;--nav-svg-fill-hover:#fff;--nav-text-color-hover:#fff;--action-button-fill-color:#839deb;--action-button-fill-color-hover:#99afef;--action-button-fill-color-active:#577ae4;--settings-list-item-bg:#fff;--settings-list-item-text:#4169e1;--settings-list-item-text-hover:#4169e1;--settings-list-item-border:#dadada;--settings-list-item-bg-active:#e6e6e6;--settings-list-item-bg-hover:#fafafa;--toast-bg:#333;--toast-border:#fafafa;--toast-text:#fff;--mask-bg:#333;--mask-svg-fill:#fff;--deemphasized-text-color:#666}
 body{margin:0;font-family:system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue;font-size:14px;line-height:1.3;color:var(--body-text-color);background:var(--body-bg);position:fixed;left:0;right:0;bottom:0;top:0}.container{overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;position:absolute;top:72px;left:0;right:0;bottom:0;will-change:transform}main{position:relative;width:602px;max-width:100vw;padding:15px 0;box-sizing:border-box;margin:15px auto 15px;background:var(--main-bg);border:1px solid var(--main-border);border-radius:1px}@media (max-width: 767px){main{margin:5px auto 15px}}h1,h2,h3,h4,h5,h6{margin:0 0 0.5em 0;font-weight:400;line-height:1.2}h1{font-size:2em}a{color:var(--anchor-text);text-decoration:none}a:visited{color:var(--anchor-text)}a:hover{text-decoration:underline}input{border:1px solid var(--input-border);padding:5px}button{font-size:1.2em;background:var(--button-bg);border-radius:2px;padding:10px 15px;border:1px solid var(--button-border);cursor:pointer;color:var(--button-text)}button:hover{background:var(--button-bg-hover)}button:active{background:var(--button-bg-active)}button[disabled]{opacity:0.35;pointer-events:none;cursor:not-allowed}button.primary{border:1px solid var(--button-primary-border);background:var(--button-primary-bg);color:var(--button-primary-text)}button.primary:hover{background:var(--button-primary-bg-hover)}button.primary:active{background:var(--button-primary-bg-active)}p,label,input{font-size:1.3em}ul,li,p{padding:0;margin:0}.hidden{opacity:0}
+body.offline,body.theme-hotpants.offline,body.theme-majesty.offline,body.theme-oaken.offline,body.theme-scarlet.offline,body.theme-seafoam.offline{--button-primary-bg:#ababab;--button-primary-text:#fff;--button-primary-border:#4d4d4d;--button-primary-bg-active:#9c9c9c;--button-primary-bg-hover:#b0b0b0;--button-bg:#e6e6e6;--button-text:#333;--button-border:#a7a7a7;--button-bg-active:#bfbfbf;--button-bg-hover:#f2f2f2;--input-border:#dadada;--anchor-text:#999;--main-bg:#fff;--body-bg:#fafafa;--body-text-color:#333;--main-border:#dadada;--svg-fill:#999;--form-bg:#f7f7f7;--form-border:#c1c1c1;--nav-bg:#999;--nav-border:gray;--nav-a-border:#999;--nav-a-selected-border:#fff;--nav-a-selected-bg:#b3b3b3;--nav-svg-fill:#fff;--nav-text-color:#fff;--nav-a-selected-border-hover:#fff;--nav-a-selected-bg-hover:#bfbfbf;--nav-a-bg-hover:#a6a6a6;--nav-a-border-hover:#999;--nav-svg-fill-hover:#fff;--nav-text-color-hover:#fff;--action-button-fill-color:#bfbfbf;--action-button-fill-color-hover:#ccc;--action-button-fill-color-active:#a6a6a6;--settings-list-item-bg:#fff;--settings-list-item-text:#999;--settings-list-item-text-hover:#999;--settings-list-item-border:#dadada;--settings-list-item-bg-active:#e6e6e6;--settings-list-item-bg-hover:#fafafa;--toast-bg:#333;--toast-border:#fafafa;--toast-text:#fff;--mask-bg:#333;--mask-svg-fill:#fff;--deemphasized-text-color:#666}
 
 </style>
 
diff --git a/templates/main.js b/templates/main.js
index 7c0e6fb8..70bb0640 100644
--- a/templates/main.js
+++ b/templates/main.js
@@ -1,15 +1,18 @@
 import { init } from 'sapper/runtime.js'
+import { toast } from '../routes/_utils/toast'
 import {
   importURLSearchParams,
   importIntersectionObserver,
-  importRequestIdleCallback
+  importRequestIdleCallback,
+  importIndexedDBGetAllShim,
 } from '../routes/_utils/asyncModules'
 
 // polyfills
 Promise.all([
   typeof URLSearchParams === 'undefined' && importURLSearchParams(),
   typeof IntersectionObserver === 'undefined' && importIntersectionObserver(),
-  typeof requestIdleCallback === 'undefined' && importRequestIdleCallback()
+  typeof requestIdleCallback === 'undefined' && importRequestIdleCallback(),
+  !IDBObjectStore.prototype.getAll && importIndexedDBGetAllShim()
 ]).then(() => {
   // `routes` is an array of route objects injected by Sapper
   init(document.querySelector('#sapper'), __routes__)
@@ -17,7 +20,7 @@ Promise.all([
   if (navigator.serviceWorker && navigator.serviceWorker.controller) {
     navigator.serviceWorker.controller.onstatechange = (e) => {
       if (e.target.state === 'redundant') {
-        importToast().then(toast => toast.say('App update available. Reload to update.'));
+        toast.say('App update available. Reload to update.');
       }
     }
   }
diff --git a/templates/service-worker.js b/templates/service-worker.js
index 27ddf996..4d388f66 100644
--- a/templates/service-worker.js
+++ b/templates/service-worker.js
@@ -37,7 +37,8 @@ self.addEventListener('activate', event => {
 })
 
 const NETWORK_ONLY = [
-  '/oauth'
+  '/oauth',
+  '/api/v1/timelines'
 ]
 
 const CACHE_FIRST = [