From e5834c077f203aa5c80f777f91e0bf650614241d Mon Sep 17 00:00:00 2001
From: butlerx <butlerx@notthe.cloud>
Date: Wed, 31 May 2017 23:28:43 +0100
Subject: [PATCH 1/3] add the ability to set slide theme in slide options

---
 lib/response.js        | 1 +
 public/views/slide.ejs | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/lib/response.js b/lib/response.js
index a9abd1d..fec6c56 100755
--- a/lib/response.js
+++ b/lib/response.js
@@ -574,6 +574,7 @@ function showPublishSlide (req, res, next) {
         updatetime: updatetime,
         url: origin,
         body: markdown,
+        theme: meta.slideOptions.theme,
         meta: JSON.stringify(extracted.meta),
         useCDN: config.usecdn,
         owner: note.owner ? note.owner.id : null,
diff --git a/public/views/slide.ejs b/public/views/slide.ejs
index 26c38bb..7ff5016 100644
--- a/public/views/slide.ejs
+++ b/public/views/slide.ejs
@@ -30,7 +30,11 @@
         <% } %>
 
         <!-- For reveal.js theme -->
+        <% if(typeof theme !== 'undefined' && theme) { %>
+        <link rel="stylesheet" href="<%- url %>/build/reveal.js/css/theme/<%= theme %>.css" id="theme">
+        <% } else { %>
         <link rel="stylesheet" href="<%- url %>/build/reveal.js/css/theme/black.css" id="theme">
+        <% } %>
         <!-- For syntax highlighting -->
         <link rel="stylesheet" href="<%- url %>/build/reveal.js/lib/css/zenburn.css">
         <!-- For overwrite reveal.js -->

From c531d96f6617663dae8534aba2623f541c7d12de Mon Sep 17 00:00:00 2001
From: butlerx <butlerx@notthe.cloud>
Date: Thu, 1 Jun 2017 09:47:52 +0100
Subject: [PATCH 2/3] check if reveal theme exists

---
 lib/response.js | 3 ++-
 lib/utils.js    | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/response.js b/lib/response.js
index fec6c56..cda484e 100755
--- a/lib/response.js
+++ b/lib/response.js
@@ -13,6 +13,7 @@ var moment = require('moment')
 var config = require('./config')
 var logger = require('./logger')
 var models = require('./models')
+var utils = require('./utils')
 
 // public
 var response = {
@@ -574,7 +575,7 @@ function showPublishSlide (req, res, next) {
         updatetime: updatetime,
         url: origin,
         body: markdown,
-        theme: meta.slideOptions.theme,
+        theme: utils.isRevealTheme(meta.slideOptions.theme),
         meta: JSON.stringify(extracted.meta),
         useCDN: config.usecdn,
         owner: note.owner ? note.owner.id : null,
diff --git a/lib/utils.js b/lib/utils.js
index d9289dc..fe70a0f 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -1,4 +1,6 @@
 'use strict'
+const fs = require('fs')
+const path = require('path')
 
 exports.isSQLite = function isSQLite (sequelize) {
   return sequelize.options.dialect === 'sqlite'
@@ -23,3 +25,10 @@ exports.getImageMimeType = function getImageMimeType (imagePath) {
       return undefined
   }
 }
+
+exports.isRevealTheme = function isRevealTheme (theme) {
+  if (fs.existsSync(path.join(process.cwd(), 'public', 'build', 'reveal.js', 'css', 'theme', theme + '.css'))) {
+    return theme
+  }
+  return undefined
+}

From 0c827703c1cf24cd6a04b56dd25de483873fe0f3 Mon Sep 17 00:00:00 2001
From: butlerx <butlerx@notthe.cloud>
Date: Fri, 2 Jun 2017 11:34:35 +0100
Subject: [PATCH 3/3] switch to __dirname

---
 lib/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utils.js b/lib/utils.js
index fe70a0f..247f85f 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -27,7 +27,7 @@ exports.getImageMimeType = function getImageMimeType (imagePath) {
 }
 
 exports.isRevealTheme = function isRevealTheme (theme) {
-  if (fs.existsSync(path.join(process.cwd(), 'public', 'build', 'reveal.js', 'css', 'theme', theme + '.css'))) {
+  if (fs.existsSync(path.join(__dirname, '..', 'public', 'build', 'reveal.js', 'css', 'theme', theme + '.css'))) {
     return theme
   }
   return undefined