From 0373df4b547ca9bc2d07dab0c4d7720ee4cce69e Mon Sep 17 00:00:00 2001
From: cel <cel@f/6sQ6d2CMxRUhLpspgGIulDxDCwYD7DzFzPNr7u5AU=.ed25519>
Date: Thu, 27 Apr 2017 11:17:24 -1000
Subject: Add catchup links to messages in live view

---
 lib/render-msg.js | 52 ++++++++++++++++++++++++++++++----------------------
 lib/render.js     |  8 ++++----
 lib/serve.js      | 17 ++++++++++++++---
 3 files changed, 48 insertions(+), 29 deletions(-)

diff --git a/lib/render-msg.js b/lib/render-msg.js
index b91659a..f2812c7 100644
--- a/lib/render-msg.js
+++ b/lib/render-msg.js
@@ -14,8 +14,10 @@ function RenderMsg(render, app, msg, opts) {
   var content = this.value.content
   this.c = content || {}
   this.isMissing = !content
-  var opts = opts || {}
-  this.shouldWrap = opts.wrap !== false
+
+  if (typeof opts === 'boolean') opts = {raw: opts}
+  this.opts = opts || {}
+  this.shouldWrap = this.opts.wrap !== false
 }
 
 RenderMsg.prototype.toUrl = function (href) {
@@ -109,14 +111,7 @@ RenderMsg.prototype.wrap = function (content, cb) {
         h('code', h('a.ssb-id',
           {href: this.toUrl(this.msg.key)}, this.msg.key)),
         channel ? [' ', h('a', {href: this.toUrl(channel)}, channel)] : '')),
-    h('td.msg-right', this.msg.key ?
-      h('form', {method: 'post', action: ''},
-        this.msg.rel ? [this.msg.rel, ' '] : '',
-        h('a', {href: this.toUrl(this.msg.key) + '?raw'}, 'raw'), ' ',
-        this.voteFormInner('dig')
-    ) : [
-      this.msg.rel ? [this.msg.rel, ' '] : ''
-    ])
+    h('td.msg-right', this.actions())
   ), h('tr',
     h('td.msg-content', {colspan: 2},
       this.issues(done()),
@@ -143,18 +138,30 @@ RenderMsg.prototype.wrapMini = function (content, cb) {
       }, htime(date)), ' ',
       this.issues(done()),
       content),
-    h('td.msg-right', this.msg.key ?
-      h('form', {method: 'post', action: ''},
-        this.msg.rel ? [this.msg.rel, ' '] : '',
-        h('a', {href: this.toUrl(this.msg.key) + '?raw'}, 'raw'), ' ',
-        this.voteFormInner('dig')
-    ) : [
-      this.msg.rel ? [this.msg.rel, ' '] : ''
-    ])
+    h('td.msg-right', this.actions())
   ))
   done(cb)
 }
 
+RenderMsg.prototype.actions = function () {
+  return this.msg.key ?
+    h('form', {method: 'post', action: ''},
+      this.msg.rel ? [this.msg.rel, ' '] : '',
+      this.opts.withGt && this.msg.timestamp ? [
+        h('a', {href: '?gt=' + this.msg.timestamp}, '↓'), ' '] : '',
+      h('a', {href: this.toUrl(this.msg.key) + '?raw'}, 'raw'), ' ',
+      this.voteFormInner('dig')
+  ) : [
+    this.msg.rel ? [this.msg.rel, ' '] : ''
+  ]
+}
+
+RenderMsg.prototype.sync = function (cb) {
+  cb(null, h('tr.msg-row', h('td', {colspan: 3},
+    h('hr')
+  )))
+}
+
 RenderMsg.prototype.recpsLine = function (cb) {
   if (!this.value.private) return cb(), ''
   var author = this.value.author
@@ -182,8 +189,9 @@ RenderMsg.prototype.voteFormInner = function (expression) {
     h('input', {type: 'submit', name: 'expression', value: expression})]
 }
 
-RenderMsg.prototype.message = function (raw, cb) {
-  if (raw) return this.raw(cb)
+RenderMsg.prototype.message = function (cb) {
+  if (this.opts.raw) return this.raw(cb)
+  if (this.msg.sync) return this.sync(cb)
   if (typeof this.c === 'string') return this.encrypted(cb)
   if (this.isMissing) return this.missing(cb)
   switch (this.c.type) {
@@ -313,7 +321,7 @@ RenderMsg.prototype.title = function (cb) {
       if (err) return cb(err)
       var name = about.name || about.title || about.description
       if (name) return cb(null, name)
-      self.message(false, function (err, el) {
+      self.message(function (err, el) {
         if (err) return cb(err)
         cb(null, '%' + title(h('div', el).textContent))
       })
@@ -613,7 +621,7 @@ RenderMsg.prototype.repost = function (cb) {
   function gotMsg(err, msg) {
     if (err) return cb(err)
     var renderMsg = new RenderMsg(self.render, self.app, msg, {wrap: false})
-      renderMsg.message(false, function (err, msgEl) {
+      renderMsg.message(function (err, msgEl) {
         self.wrapMini(['reposted ',
           h('code.ssb-id',
             h('a', {href: self.render.toUrl(id)}, id)),
diff --git a/lib/render.js b/lib/render.js
index 7890c1f..cca56f0 100644
--- a/lib/render.js
+++ b/lib/render.js
@@ -224,13 +224,13 @@ Render.prototype.msgLink = function (msg, cb) {
   return a
 }
 
-Render.prototype.renderMsg = function (msg, raw, cb) {
-  new RenderMsg(this, this.app, msg).message(raw, cb)
+Render.prototype.renderMsg = function (msg, opts, cb) {
+  new RenderMsg(this, this.app, msg, opts).message(cb)
 }
 
-Render.prototype.renderFeeds = function (raw) {
+Render.prototype.renderFeeds = function (opts) {
   var self = this
   return paramap(function (msg, cb) {
-    self.renderMsg(msg, raw, cb)
+    self.renderMsg(msg, opts, cb)
   }, 4)
 }
diff --git a/lib/serve.js b/lib/serve.js
index a377c04..9e1cbb5 100644
--- a/lib/serve.js
+++ b/lib/serve.js
@@ -382,11 +382,22 @@ Serve.prototype.search = function (ext) {
 
 Serve.prototype.live = function (ext) {
   var self = this
+  var q = self.query
+  var opts = {
+    live: true,
+  }
+  var gt = Number(q.gt)
+  if (gt) opts.gt = gt
+  else opts.old = false
 
   pull(
-    self.app.sbot.createLogStream({old: false}),
-    self.renderThread(),
-    self.wrapMessages(),
+    ph('table', {class: 'ssb-msgs'}, pull(
+      self.app.sbot.createLogStream(opts),
+      self.app.render.renderFeeds({
+        withGt: true,
+      }),
+      pull.map(u.toHTML)
+    )),
     self.wrapPage('live'),
     self.respondSink(200, {
       'Content-Type': ctype(ext),
-- 
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