From 3ed576b5c8dbcad72ed7ba71d122a30add2e400e Mon Sep 17 00:00:00 2001
From: Lu Wang <coolwanglu@gmail.com>
Date: Fri, 1 Mar 2013 14:02:11 +0800
Subject: [PATCH] disable backgruond image selection and dragging

---
 share/base.css.in      |  4 ++++
 share/pdf2htmlEX.js.in | 10 ++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/share/base.css.in b/share/base.css.in
index ff64b02..d7ad8c4 100644
--- a/share/base.css.in
+++ b/share/base.css.in
@@ -122,6 +122,10 @@
   top:0;
   width:100%;
   height:100%;
+  -ms-user-select:none;
+  -moz-user-select:none;
+  -webkit-user-select:none;
+  user-select:none;
 }
 @media print {
   .@CSS_PAGE_DECORATION_CN@ {
diff --git a/share/pdf2htmlEX.js.in b/share/pdf2htmlEX.js.in
index 283dd99..900a080 100644
--- a/share/pdf2htmlEX.js.in
+++ b/share/pdf2htmlEX.js.in
@@ -15,6 +15,7 @@ var pdf2htmlEX = (function(){
     page_decoration  : '@CSS_PAGE_DECORATION_CN@',
     page_content_box : '@CSS_PAGE_CONTENT_BOX_CN@',
     page_data        : '@CSS_PAGE_DATA_CN@',
+    background_image : '@CSS_BACKGROUND_IMAGE_CN@',
     link             : '@CSS_LINK_CN@',
     __dummy__        : 'no comma'
   };
@@ -126,11 +127,12 @@ var pdf2htmlEX = (function(){
       this.outline = $('#'+this.outline_id);
       this.container = $('#'+this.container_id);
 
-      // need a better design
+      // Open the outline if nonempty
       if(this.outline.children().length > 0) { 
         this.outline.addClass('opened');
       }
       
+      // collect pages
       var new_pages = new Array();
       var pl= $('.'+CSS_CLASS_NAMES['page_frame'], this.container);
       /* don't use for(..in..) */
@@ -140,14 +142,18 @@ var pdf2htmlEX = (function(){
       }
       this.pages = new_pages;
 
+      // register schedule rendering
       var _ = this;
       this.container.scroll(function(){ _.schedule_render(); });
 
       //this.zoom_fixer();
       
-      // used by outline/annot_link etc
+      // handle links
       this.container.add(this.outline).on('click', '.'+CSS_CLASS_NAMES['link'], this, this.link_handler);
 
+      // disable background image draging
+      $('.'+CSS_CLASS_NAMES['background_image'], this.container).on('dragstart', function(e){return false;});
+
       this.render();
     },
     pre_hide_pages : function() {