Enforce constancy

6 files changed, 25 insertions, 25 deletions

diff --git a/appcache.js b/appcache.js
index ba356c2..09b588f 100644
--- a/appcache.js
+++ b/appcache.js
@@ -27,7 +27,7 @@ class AppCache {
       "pointless/viewer/timer.js"
     ];
 
-    var appCache = this;
+    const appCache = this;
     self.addEventListener("install", function(event) {
       event.waitUntil(appCache._onInstall());
     });
@@ -38,7 +38,7 @@ class AppCache {
   }
 
   _onInstall() {
-    var self = this;
+    const self = this;
     return caches.open(this.cacheName).then(function(cache) {
       return cache.addAll(self.filesToCache);
     });
@@ -58,4 +58,4 @@ class AppCache {
   }
 }
 
-var appCache = new AppCache();
+const appCache = new AppCache();
diff --git a/pointless/viewer/init.js b/pointless/viewer/init.js
index dddbf17..a9294ea 100644
--- a/pointless/viewer/init.js
+++ b/pointless/viewer/init.js
@@ -7,10 +7,10 @@
 
 "use strict";
 
-var params = function() {
-  var queryDict = {};
+const params = function() {
+  const queryDict = {};
   location.search.substr(1).split("&").forEach(function(item) {
-    var pair = item.split("=");
+    const pair = item.split("=");
     queryDict[pair[0]] = pair[1];
   });
   return queryDict;
@@ -24,14 +24,14 @@ function initCache() {
   if (!navigator.serviceWorker) return;
   navigator.serviceWorker.register("appcache.js");
   
-  var offlineCapableIndicator = document.getElementById("offlineCapable");
+  const offlineCapableIndicator = document.getElementById("offlineCapable");
   offlineCapableIndicator.style.visibility = "visible";
 }
 
 function init() {
   initCache();
 
-  var viewer = new Viewer();
+  const viewer = new Viewer();
 
   if ("file" in params)
     viewer.load(params["file"]);
diff --git a/pointless/viewer/presentation.js b/pointless/viewer/presentation.js
index 853d764..97a9244 100644
--- a/pointless/viewer/presentation.js
+++ b/pointless/viewer/presentation.js
@@ -15,10 +15,10 @@ class Presentation {
   }
 
   _setupStage() {
-    var self = this;
-    var onStageReadyCallback = function() { self._onStageReady(); };
-    var onNextCallback = function() { self._onNext(); };
-    var onPreviousCallback = function() { self._onPrevious(); };
+    const self = this;
+    const onStageReadyCallback = function() { self._onStageReady(); };
+    const onNextCallback = function() { self._onNext(); };
+    const onPreviousCallback = function() { self._onPrevious(); };
     return new Stage(onStageReadyCallback, onNextCallback, onPreviousCallback);
   }
 
@@ -37,7 +37,7 @@ class Presentation {
   }
 
   _setPage(pageIndex) {
-    var self = this;
+    const self = this;
     this.currentPageIndex = pageIndex;
     this.pdf.getPage(this.currentPageIndex).then(function(page) {
       self.stage.setPage(page);
diff --git a/pointless/viewer/stage.js b/pointless/viewer/stage.js
index 117b0af..b641a9e 100644
--- a/pointless/viewer/stage.js
+++ b/pointless/viewer/stage.js
@@ -18,7 +18,7 @@ class Stage {
     if (this.projector == null)
       alert("Please allow pop-ups, then refresh this page.");
 
-    var self = this;
+    const self = this;
     this.projector.addEventListener("load", function() {
       self.audienceScreen = new Screen(self.projector, false, false);
       self.presenterScreen = new Screen(window, true, true);
@@ -36,7 +36,7 @@ class Stage {
   }
 
   _registerEventHandler(window) {
-    var self = this;
+    const self = this;
     window.addEventListener("keydown", function(event) {
       self._onCommand(event);
     })
@@ -57,7 +57,7 @@ class Stage {
   }
 
   _watchDetach() {
-    var self = this;
+    const self = this;
     window.addEventListener("beforeunload", function() {
       self._setMessage(self.projector, "Controller detached");
     });
@@ -68,7 +68,7 @@ class Stage {
   }
 
   _setMessage(window, message) {
-    var messageBar = window.document.getElementById("message");
+    const messageBar = window.document.getElementById("message");
     messageBar.textContent = message;
   }
 }
diff --git a/pointless/viewer/timer.js b/pointless/viewer/timer.js
index 4f19986..28c3f97 100644
--- a/pointless/viewer/timer.js
+++ b/pointless/viewer/timer.js
@@ -18,19 +18,19 @@ class Timer {
     if (this.startTime != null) return;
     this.startTime = Date.now();
 
-    var self = this;
+    const self = this;
     setInterval(function() {
       self._runTimer();
     }, 1000);
   }
 
   _runTimer() {
-    var timeDelta = Math.floor((Date.now() - this.startTime) / 1000);
+    const timeDelta = Math.floor((Date.now() - this.startTime) / 1000);
     this._setDisplay(timeDelta);
   }
 
   _setDisplay(seconds) {
-    var dateObj = new Date(null);
+    const dateObj = new Date(null);
     dateObj.setSeconds(seconds);
     this.display.textContent = dateObj.toISOString().substr(11, 8);
   }
diff --git a/pointless/viewer/viewer.js b/pointless/viewer/viewer.js
index 9e92c2c..75486a4 100644
--- a/pointless/viewer/viewer.js
+++ b/pointless/viewer/viewer.js
@@ -19,15 +19,15 @@ class Viewer {
   load(source) {
     this.welcomeScreen.style.display = "none";
     pdfjsLib.getDocument(source).then(function(pdf) {
-      var presentation = new Presentation(pdf);
+      const presentation = new Presentation(pdf);
     });
   }
 
   _readFile(file) {
-    var fileReader = new FileReader();
-    var self = this;
+    const fileReader = new FileReader();
+    const self = this;
     fileReader.onload = function() {
-      var byteArray = new Uint8Array(this.result);
+      const byteArray = new Uint8Array(this.result);
       self.load(byteArray);
     }
   
@@ -35,7 +35,7 @@ class Viewer {
   }
 
   _listenForInput() {
-    var self = this;
+    const self = this;
     fileInput.addEventListener("change", function(event) {
       self._readFile(event.target.files[0]);
     });