From be779c2ec740e5cf1587b7816aea840aff601914 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Wed, 10 Oct 2012 19:32:48 -0500
Subject: [PATCH] Hides cursor in presentation mode

---
 web/viewer.css |  9 +++++++++
 web/viewer.js  | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/web/viewer.css b/web/viewer.css
index b57698c37..7f9a83288 100644
--- a/web/viewer.css
+++ b/web/viewer.css
@@ -50,6 +50,7 @@ select {
   width: 100%;
   height: 100%;
   overflow: hidden;
+  cursor: none;
 }
 
 #viewerContainer:-moz-full-screen {
@@ -60,6 +61,7 @@ select {
   width: 100%;
   height: 100%;
   overflow: hidden;
+  cursor: none;
 }
 
 :-webkit-full-screen .page:last-child {
@@ -72,10 +74,17 @@ select {
 
 #viewerContainer:full-screen {
   top: 0px;
+  border-top: 5px solid transparent;
   background-color: #404040;
   background-image: url(images/texture.png);
   width: 100%;
   height: 100%;
+  overflow: hidden;
+  cursor: none;
+}
+
+#viewerContainer.presentationControls {
+  cursor: default;
 }
 
 /* outer/inner center provides horizontal center */
diff --git a/web/viewer.js b/web/viewer.js
index 6d0829b6d..df79555b4 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -1508,6 +1508,7 @@ var PDFView = {
       currentPage.scrollIntoView();
     }, 0);
 
+    this.showPresentationControls();
     return true;
   },
 
@@ -1516,6 +1517,32 @@ var PDFView = {
     this.parseScale(this.previousScale);
     this.page = this.page;
     this.clearMouseScrollState();
+    this.hidePresentationControls();
+  },
+
+  showPresentationControls: function pdfViewShowPresentationControls() {
+    var DELAY_BEFORE_HIDING_CONTROLS = 3000;
+    var wrapper = document.getElementById('viewerContainer');
+    if (this.presentationControlsTimeout) {
+      clearTimeout(this.presentationControlsTimeout);
+    } else {
+      wrapper.classList.add('presentationControls');
+    }
+    this.presentationControlsTimeout = setTimeout(function hideControls() {
+      wrapper.classList.remove('presentationControls');
+      delete PDFView.presentationControlsTimeout;
+    }, DELAY_BEFORE_HIDING_CONTROLS);
+  },
+
+  hidePresentationControls: function pdfViewShowPresentationControls() {
+    if (!this.presentationControlsTimeout) {
+      return;
+    }
+    clearTimeout(this.presentationControlsTimeout);
+    delete this.presentationControlsTimeout;
+
+    var wrapper = document.getElementById('viewerContainer');
+    wrapper.classList.remove('presentationControls');
   },
 
   rotatePages: function pdfViewPageRotation(delta) {
@@ -2915,6 +2942,12 @@ window.addEventListener('DOMMouseScroll', function(evt) {
   }
 }, false);
 
+window.addEventListener('mousemove', function keydown(evt) {
+  if (PDFView.isFullscreen) {
+    PDFView.showPresentationControls();
+  }
+}, false);
+
 window.addEventListener('mousedown', function mousedown(evt) {
   if (PDFView.isFullscreen && evt.button === 0) {
     // Mouse click in fullmode advances a page