feed: add deeplinking and browser history

Added deeplinks with browser history support. Each note and author
have now a detail view under nostr.ch/<event-id-or-pubkey> in a
future commit also /e/<event-id> and /p/<pubkey> could be supported.

User can now navigate with browser back (with the expection of the
settings overlay).

Not everything is supported in the detail view (yet) i.e reply and
stars are partially working (dont update visually), leaving this as
open bug. This should fix itself once only 1 render container is
used instead of different divs in the html for each view.

Ideally the detail view should also query for related events,
something to add in a future commit

src/cards.css

@@ -49,11 +49,13 @@
 }
 
 .mbox-body {
-  flex-basis: calc(100% - 64px - 1rem);
   flex-grow: 0;
   flex-shrink: 1;
   word-break: break-word;
 }
+.mbox-img + .mbox-body {
+  flex-basis: calc(100% - 64px - 1rem);
+}
 
 .mbox-header {
   flex-basis: calc(100% - 64px - 1rem);
@@ -64,6 +66,7 @@
 .mbox-header time,
 .mbox-username {
   color: var(--color-accent);
+  cursor: pointer;
 }
 
 .mbox-kind0-name {

src/form.css

@@ -168,9 +168,9 @@ button:disabled {
 .form-inline * + * {
   margin-left: var(--gap);
 }
-.cards .form-inline button,
+.form-inline button,
-.cards .form-inline input[type="text"],
+.form-inline input[type="text"],
-.cards .form-inline textarea {
+.form-inline textarea {
   margin: .4rem 0;
 }
 

src/index.html

@@ -41,6 +41,17 @@
             </div>
           </artcile>
           <div class="cards" id="homefeed"></div>
+          <div id="detail" hidden>
+            <article class="mbox" id="profile" data-pubkey>
+              <div class="mbox-body">
+                <img class="profile-image">
+                <h2 class="profile-name mbox-username"></h2>
+                <p class="profile-about"></p>
+                <dl><dt class="profile-pubkey-label" hidden>pubkey</dt><dd class="profile-pubkey"></dd></dl>
+              </div>
+            </article>
+            <section id="textnote"></section>
+          </div>
         </div>
     
         <div class="tab-content">

src/main.css

@@ -70,6 +70,8 @@ body {
   margin: 0;
 }
 
+h1, h2, h3, h4, h5 { font-weight: normal; }
+
 body,
 button,
 input,

src/main.js

@@ -2,15 +2,11 @@ import {relayPool, generatePrivateKey, getPublicKey, signEvent} from 'nostr-tool
 import {elem, parseTextContent} from './domutil.js';
 import {dateTime, formatTime} from './timeutil.js';
 // curl -H 'accept: application/nostr+json' https://relay.nostr.ch/
+
 const pool = relayPool();
 pool.addRelay('wss://relay.nostr.info', {read: true, write: true});
 pool.addRelay('wss://relay.damus.io', {read: true, write: true});
-pool.addRelay('wss://nostr.x1ddos.ch', {read: true, write: true});
 pool.addRelay('wss://relay.nostr.ch', {read: true, write: true});
-// pool.addRelay('wss://nostr.openchain.fr', {read: true, write: true});
-// pool.addRelay('wss://nostr.bitcoiner.social/', {read: true, write: true});
-// read only
-// pool.addRelay('wss://nostr.rocks', {read: true, write: false});
 
 function onEvent(evt, relay) {
   switch (evt.kind) {
@@ -41,20 +37,216 @@ let pubkey = localStorage.getItem('pub_key') || (() => {
   return pubkey;
 })();
 
-const subscription = pool.sub({
+const subList = [];
-  cb: onEvent,
+const unSubAll = () => {
-  filter: {
+  subList.forEach(sub => sub.unsub());
-    // authors: [
+  subList.length = 0;
-    //   '52155da703585f25053830ac39863c80ea6adc57b360472c16c566a412d2bc38', // quark
+};
-    //   'a6057742e73ff93b89587c27a74edf2cdab86904291416e90dc98af1c5f70cfa', // mosc
+
-    //   '3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d', // fiatjaf
+window.addEventListener('popstate', (event) => {
-    //   '52155da703585f25053830ac39863c80ea6adc57b360472c16c566a412d2bc38', // x1ddos
+  // console.log(`popstate path: ${location.pathname}, state: ${JSON.stringify(event.state)}`);
-    //   // pubkey, // me
+  unSubAll();
-    //   '32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245',  // jb55
+  if (event.state?.author) {
-    // ],
+    subProfile(event.state.author);
-    // since: new Date(Date.now() - (24 * 60 * 60 * 1000)),
+    return;
-    limit: 250,
   }
+  if (event.state?.pubOrEvt) {
+    subNoteAndProfile(event.state.pubOrEvt);
+    return;
+  }
+  if (event.state?.eventId) {
+    subTextNote(event.state.eventId);
+    return;
+  }
+  sub24hFeed();
+  showFeed();
+});
+
+switch(location.pathname) {
+  case '/':
+    history.pushState({}, '', '/');
+    sub24hFeed();
+    break;
+  default:
+    const pubOrEvt = location.pathname.slice(1);
+    if (pubOrEvt.length === 64 && pubOrEvt.match(/^[0-9a-f]+$/)) {
+      history.pushState({pubOrEvt}, '', `/${pubOrEvt}`);
+      subNoteAndProfile(pubOrEvt);
+    }
+    break;
+}
+
+function sub24hFeed() {
+  subList.push(pool.sub({
+    cb: onEvent,
+    filter: {
+      kinds: [0, 1, 2, 7],
+      // until: Math.floor(Date.now() * 0.001),
+      since: Math.floor((Date.now() * 0.001) - (24 * 60 * 60)),
+      limit: 100,
+    }
+  }));
+}
+
+function subNoteAndProfile(id) {
+  subProfile(id);
+  subTextNote(id);
+}
+
+function subTextNote(eventId) {
+  subList.push(pool.sub({
+    cb: (evt, relay) => {
+      clearTextNoteDetail();
+      showTextNoteDetail(evt, relay);
+    },
+    filter: {
+      ids: [eventId],
+      kinds: [1],
+      limit: 1,
+    }
+  }));
+}
+
+function subProfile(pubkey) {
+  subList.push(pool.sub({
+    cb: (evt, relay) => {
+      renderProfile(evt, relay);
+      showProfileDetail();
+    },
+    filter: {
+      authors: [pubkey],
+      kinds: [0],
+      limit: 1,
+    }
+  }));
+  // get notes for profile
+  subList.push(pool.sub({
+    cb: (evt, relay) => {
+      showTextNoteDetail(evt, relay);
+      showProfileDetail();
+    },
+    filter: {
+      authors: [pubkey],
+      kinds: [1],
+      limit: 150,
+    }
+  }));
+}
+
+const detailContainer = document.querySelector('#detail');
+const profileContainer = document.querySelector('#profile');
+const profileAbout = profileContainer.querySelector('.profile-about');
+const profileName = profileContainer.querySelector('.profile-name');
+const profilePubkey = profileContainer.querySelector('.profile-pubkey');
+const profilePubkeyLabel = profileContainer.querySelector('.profile-pubkey-label');
+const profileImage = profileContainer.querySelector('.profile-image');
+const textNoteContainer = document.querySelector('#textnote');
+
+function clearProfile() {
+  profileAbout.textContent = '';
+  profileName.textContent = '';
+  profilePubkey.textContent = '';
+  profilePubkeyLabel.hidden = true;
+}
+function renderProfile(evt, relay) {
+  profileContainer.dataset.pubkey = evt.pubkey;
+  profilePubkey.textContent = evt.pubkey;
+  profilePubkeyLabel.hidden = false;
+  const content = parseContent(evt.content);
+  if (content) {
+    profileAbout.textContent = content.about;
+    profileName.textContent = content.name;
+    const noxyImg = getNoxyUrl('data', content.picture, evt.id, relay);
+    if (noxyImg) {
+      profileImage.setAttribute('src', getNoxyUrl('data', noxyImg, evt.id, relay))
+    }
+  }
+}
+
+function showProfileDetail() {
+  profileContainer.hidden = false;
+  textNoteContainer.hidden = false;
+  showDetail();
+}
+
+function clearTextNoteDetail() {
+  textNoteContainer.replaceChildren([]);
+}
+
+function showTextNoteDetail(evt, relay) {
+  if (!textNoteContainer.querySelector(`[data-id="${evt.id}"]`)) {
+    textNoteContainer.append(createTextNote(evt, relay));
+  }
+  textNoteContainer.hidden = false;
+  profileContainer.hidden = true;
+  showDetail();
+}
+
+function showDetail() {
+  feedContainer.hidden = true;
+  detailContainer.hidden = false;
+}
+
+function showFeed() {
+  feedContainer.hidden = false;
+  detailContainer.hidden = true;
+}
+
+document.querySelector('label[for="feed"]').addEventListener('click', () => {
+  if (location.pathname !== '/') {
+    showFeed();
+    history.pushState({}, '', '/');
+    unSubAll();
+    sub24hFeed();
+  }
+});
+
+document.body.addEventListener('click', (e) => {
+  const button = e.target.closest('button');
+  const pubkey = e.target.closest('[data-pubkey]')?.dataset.pubkey;
+  const id = e.target.closest('[data-id]')?.dataset.id;
+  const relay = e.target.closest('[data-relay]')?.dataset.relay;
+  if (button && button.name === 'reply') {
+    if (localStorage.getItem('reply_to') === id) {
+      writeInput.blur();
+      return;
+    }
+    appendReplyForm(button);
+    localStorage.setItem('reply_to', id);
+    return;
+  }
+  if (button && button.name === 'star') {
+    upvote(id, relay)
+    return;
+  }
+  if (button && button.name === 'back') {
+    hideNewMessage(true);
+    return;
+  }
+  const username = e.target.closest('.mbox-username')
+  if (username) {
+    history.pushState({author: pubkey}, '', `/${pubkey}`);
+    unSubAll();
+    clearProfile();
+    clearTextNoteDetail();
+    subProfile(pubkey);
+    showProfileDetail();
+    return;
+  }
+  const eventTime = e.target.closest('.mbox-header time');
+  if (eventTime) {
+    history.pushState({eventId: id, relay}, '', `/${id}`);
+    unSubAll();
+    clearTextNoteDetail();
+    subTextNote(id);
+    return;
+  }
+  // const container = e.target.closest('[data-append]');
+  // if (container) {
+  //   container.append(...parseTextContent(container.dataset.append));
+  //   delete container.dataset.append;
+  //   return;
+  // }
 });
 
 const textNoteList = []; // could use indexDB
@@ -245,7 +437,7 @@ function createTextNote(evt, relay) {
       ${evt.content}`
     }, [
       elem('small', {}, [
-        elem('strong', {className: `mbox-username${name ? ' mbox-kind0-name' : ''}`, data: {pubkey: evt.pubkey.slice(0, 12)}}, name || userName),
+        elem('strong', {className: `mbox-username${name ? ' mbox-kind0-name' : ''}`}, name || userName),
         ' ',
         elem('time', {dateTime: time.toISOString()}, formatTime(time)),
       ]),
@@ -276,10 +468,10 @@ function createTextNote(evt, relay) {
     appendReplyForm(body.querySelector('button[name="reply"]'));
     requestAnimationFrame(() => updateElemHeight(writeInput));
   }
-  return rendernArticle([
+  return renderArticle([
     elem('div', {className: 'mbox-img'}, [img]), body,
     replies[0] ? elem('div', {className: 'mobx-replies'}, replyFeed.reverse()) : '',
-  ]);
+  ], {data: {id: evt.id, pubkey: evt.pubkey, relay}});
 }
 
 function handleReply(evt, relay) {
@@ -364,7 +556,7 @@ function renderUpdateContact(evt, relay) {
       JSON.stringify(evt.tags),
     ]),
   ]);
-  return rendernArticle([img, body], {className: 'mbox-updated-contact'});
+  return renderArticle([img, body], {className: 'mbox-updated-contact', data: {id: evt.id, pubkey: evt.pubkey, relay}});
 }
 
 function renderRecommendServer(evt, relay) {
@@ -377,12 +569,12 @@ function renderRecommendServer(evt, relay) {
     ]),
     ` recommends server: ${evt.content}`,
   ]);
-  return rendernArticle([
+  return renderArticle([
     elem('div', {className: 'mbox-img'}, [img]), body
-  ], {className: 'mbox-recommend-server', data: {relay: evt.content}});
+  ], {className: 'mbox-recommend-server', data: {id: evt.id, pubkey: evt.pubkey}});
 }
 
-function rendernArticle(content, props = {}) {
+function renderArticle(content, props = {}) {
   const className = props.className ? ['mbox', props?.className].join(' ') : 'mbox';
   return elem('article', {...props, className}, content);
 }
@@ -390,16 +582,22 @@ function rendernArticle(content, props = {}) {
 const userList = [];
 // const tempContactList = {};
 
-function handleMetadata(evt, relay) {
+function parseContent(content) {
   try {
-    const content = JSON.parse(evt.content);
+    return JSON.parse(content);
-    setMetadata(evt, relay, content);
   } catch(err) {
     console.log(evt);
     console.error(err);
   }
 }
 
+function handleMetadata(evt, relay) {
+  const content = parseContent(evt.content);
+  if (content) {
+    setMetadata(evt, relay, content);
+  }
+}
+
 function setMetadata(evt, relay, content) {
   let user = userList.find(u => u.pubkey === evt.pubkey);
   const picture = getNoxyUrl('data', content.picture, evt.id, relay).href;
@@ -423,17 +621,16 @@ function setMetadata(evt, relay, content) {
   }
   // update profile images
   if (user.picture) {
-    feedContainer
+    document.body
-      .querySelectorAll(`canvas[data-pubkey="${evt.pubkey.slice(0, 12)}"]`)
+      .querySelectorAll(`canvas[data-pubkey="${evt.pubkey}"]`)
       .forEach(canvas => (canvas.parentNode.replaceChild(elem('img', {src: user.picture}), canvas)));
   }
   if (user.metadata[relay].name) {
-    feedContainer
+    document.body
-      .querySelectorAll(`.mbox-username[data-pubkey="${evt.pubkey.slice(0, 12)}"]`)
+      .querySelectorAll(`[data-id="${evt.pubkey}"] .mbox-username:not(.mbox-kind0-name)`)
       .forEach(username => {
         username.textContent = user.metadata[relay].name;
         username.classList.add('mbox-kind0-name');
-        username.removeAttribute('data-pubkey');
       });
   }
   // if (tempContactList[relay]) {
@@ -461,7 +658,7 @@ const getHost = (url) => {
 }
 
 const elemCanvas = (text) => {
-  const canvas = elem('canvas', {height: 80, width: 80, data: {pubkey: text.slice(0, 12)}});
+  const canvas = elem('canvas', {height: 80, width: 80, data: {pubkey: text}});
   const context = canvas.getContext('2d');
   const color = `#${text.slice(0, 6)}`;
   context.fillStyle = color;
@@ -472,7 +669,7 @@ const elemCanvas = (text) => {
   if (color === '#000000') {
     context.fillStyle = '#fff';
   }
-  context.fillText(text, 2, 46);
+  context.fillText(text.slice(0, 8), 2, 46);
   return canvas;
 }
 
@@ -495,23 +692,6 @@ function getMetadata(evt, relay) {
   return {host, img, isReply, name, replies, time, userName};
 }
 
-feedContainer.addEventListener('click', (e) => {
-  const button = e.target.closest('button');
-  if (button && button.name === 'reply') {
-    if (localStorage.getItem('reply_to') === button.dataset.eventId) {
-      writeInput.blur();
-      return;
-    }
-    appendReplyForm(button);
-    localStorage.setItem('reply_to', button.dataset.eventId);
-    return;
-  }
-  if (button && button.name === 'star') {
-    upvote(button.dataset.eventId, button.dataset.relay)
-    return;
-  }
-});
-
 const writeForm = document.querySelector('#writeForm');
 const writeInput = document.querySelector('textarea[name="message"]');
 
@@ -730,19 +910,6 @@ privateTgl.addEventListener('click', () => {
 privateKeyInput.value = localStorage.getItem('private_key');
 pubKeyInput.value = localStorage.getItem('pub_key');
 
-document.body.addEventListener('click', (e) => {
-  // const container = e.target.closest('[data-append]');
-  // if (container) {
-  //   container.append(...parseTextContent(container.dataset.append));
-  //   delete container.dataset.append;
-  //   return;
-  // }
-  const back = e.target.closest('[name="back"]')
-  if (back) {
-    hideNewMessage(true);
-  }
-});
-
 // profile
 const profileForm = document.querySelector('form[name="profile"]');
 const profileSubmit = profileForm.querySelector('button[type="submit"]');

src/tabs.css

@@ -73,7 +73,4 @@ input[type="radio"]:checked + label {
     margin-left: var(--gap);
     order: 2;
   }
-  .cards {
-
-  }
 }