From 43fdef5e5328cd550657c8507b6b265aca602a05 Mon Sep 17 00:00:00 2001
From: Ozzie Isaacs <ozzie.fernandez.isaacs@googlemail.com>
Date: Sun, 3 Oct 2021 09:31:24 +0200
Subject: [PATCH] Improved textreader

---
 .../djvu_html5 => css/libs}/Djvu_html5.css    |   0
 cps/static/css/text.css                       |  44 ++++++
 cps/static/js/reading/txt_reader.js           |  86 +++++++++++
 cps/templates/readtxt.html                    | 139 ++----------------
 4 files changed, 143 insertions(+), 126 deletions(-)
 rename cps/static/{js/libs/djvu_html5 => css/libs}/Djvu_html5.css (100%)
 create mode 100644 cps/static/css/text.css
 create mode 100644 cps/static/js/reading/txt_reader.js

diff --git a/cps/static/js/libs/djvu_html5/Djvu_html5.css b/cps/static/css/libs/Djvu_html5.css
similarity index 100%
rename from cps/static/js/libs/djvu_html5/Djvu_html5.css
rename to cps/static/css/libs/Djvu_html5.css
diff --git a/cps/static/css/text.css b/cps/static/css/text.css
new file mode 100644
index 00000000..74204680
--- /dev/null
+++ b/cps/static/css/text.css
@@ -0,0 +1,44 @@
+body {
+    background: white;
+}
+
+#readmain {
+    position: absolute;
+    width: 100%;
+    height: 100%;
+}
+
+#area {
+    width: 80%;
+    height: 80%;
+    margin: 5% auto;
+    max-width: 1250px;
+}
+
+#area iframe {
+    border: none;
+}
+
+xmp, pre, plaintext {
+    display: block;
+    font-family: -moz-fixed;
+    white-space: pre;
+    margin: 1em 0;
+}
+
+#area{
+    overflow:hidden;
+}
+
+pre {
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    font-family: -moz-fixed;
+    column-count:2;
+    -webkit-columns:2;
+    -moz-columns:2;
+    column-gap:20px;
+    -moz-column-gap:20px;
+    -webkit-column-gap:20px;
+    position:relative;
+}
diff --git a/cps/static/js/reading/txt_reader.js b/cps/static/js/reading/txt_reader.js
new file mode 100644
index 00000000..9cfb51f5
--- /dev/null
+++ b/cps/static/js/reading/txt_reader.js
@@ -0,0 +1,86 @@
+/* This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
+ *    Copyright (C) 2021 Ozzieisaacs
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+$(document).ready(function() {
+    //to int
+    $("#area").width($("#area").width());
+    $("#content").width($("#content").width());
+    //bind text
+    $("#content").load($("#readmain").data('load'), function(textStr) {
+        $(this).height($(this).parent().height()*0.95);
+        $(this).text(textStr);
+    });
+    //keybind
+    $(document).keydown(function(event){
+        if(event.keyCode == 37){
+            prevPage();
+        }
+        if(event.keyCode == 39){
+            nextPage();
+        }
+    });
+    //click
+    $( "#left" ).click(function() {
+        prevPage();
+    });
+    $( "#right" ).click(function() {
+        nextPage();
+    });
+    $("#readmain").swipe( {
+        swipeRight:function() {
+            prevPage();
+        },
+        swipeLeft:function() {
+            nextPage();
+        },
+    });
+
+    //bind mouse
+    $(window).bind('DOMMouseScroll mousewheel', function(event) {
+        var delta = 0;
+        if (event.originalEvent.wheelDelta) {
+            delta = event.originalEvent.wheelDelta;
+        } else if (event.originalEvent.detail) {
+            delta = event.originalEvent.detail*-1;
+        }
+        if (delta >= 0) {
+            prevPage();
+        } else {
+            nextPage();
+        }
+    });
+
+    //page animate
+    var origwidth = $("#content")[0].getBoundingClientRect().width;
+    var gap = 20;
+    function prevPage() {
+        if($("#content").offset().left > 0) {
+            return;
+        }
+        leftoff = $("#content").offset().left;
+        leftoff = leftoff+origwidth+gap;
+        $("#content").offset({left:leftoff});
+    }
+    function nextPage() {
+        leftoff = $("#content").offset().left;
+        leftoff = leftoff-origwidth-gap;
+        if (leftoff + $("#content")[0].scrollWidth < 0) {
+            return;
+        }
+        $("#content").offset({left:leftoff});
+    }
+});
diff --git a/cps/templates/readtxt.html b/cps/templates/readtxt.html
index ea294948..b157fe95 100644
--- a/cps/templates/readtxt.html
+++ b/cps/templates/readtxt.html
@@ -5,139 +5,26 @@
         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
         <title>{{_('txt Reader')}} | {{title}}</title>
         <meta name="description" content="">
-        <meta name="viewport" content="width=device-width">
+        <meta name="viewport" content="width=device-width, user-scalable=no">
         <meta name="apple-mobile-web-app-capable" content="yes">
-        <link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}" type="text/css"/>
+        <link rel="apple-touch-icon" sizes="140x140" href="{{ url_for('static', filename='favicon.ico') }}">
+        <link rel="shortcut icon" href="{{ url_for('static', filename='favicon.ico') }}">
+
+        <link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}" type="text/css"/>
+        <link rel="stylesheet" href="{{ url_for('static', filename='css/text.css') }}" type="text/css"/>
 
-        <!-- EPUBJS Renderer -->
-        <!--<script src="../build/epub.js"></script>-->
         <script src="{{ url_for('static', filename='js/libs/jquery.min.js') }}"></script>
         <script src="{{ url_for('static', filename='js/libs/plugins.js') }}"></script>
-
-        <style type="text/css">
-
-          body {
-            background: white;
-          }
-
-          #readmain {
-            position: absolute;
-            width: 100%;
-            height: 100%;
-          }
-
-          #area {
-            width: 80%;
-            height: 80%;
-            margin: 5% auto;
-            max-width: 1250px;
-          }
-
-          #area iframe {
-            border: none;
-          }
-
-          xmp, pre, plaintext {
-            display: block;
-            font-family: -moz-fixed;
-            white-space: pre;
-            margin: 1em 0;
-          }
-          #area{
-            overflow:hidden;
-          }
-          pre {
-            white-space: pre-wrap;
-            word-wrap: break-word;
-            font-family: -moz-fixed;
-            column-count:2;
-            -webkit-columns:2;
-            -moz-columns:2;
-            column-gap:20px;
-            -moz-column-gap:20px;
-            -webkit-column-gap:20px;
-            position:relative;
-          }
-        </style>
-
-         <script>
+        <script>
             "use strict";
         </script>
+        <script src="{{ url_for('static', filename='js/reading/txt_reader.js') }}"></script>
     </head>
     <body>
-        <div id="readmain">
-          <div id="left" class="arrow" >‹</div>
-          <div id="area"><pre id="content" class="content"></pre></div>
-          <div id="right" class="arrow">›</div>
-        </div>
-
-        <script>
-
-        $(document).ready(function() {
-          //to int
-          $("#area").width($("#area").width());
-          $("#content").width($("#content").width());
-          //bind text
-          $("#content").load("{{ url_for('web.serve_book', book_id=txtfile,book_format='txt') }}",function(textStr) {
-           $(this).height($(this).parent().height()*0.95);
-           $(this).text(textStr);
-          });
-          //keybind
-          $(document).keydown(function(event){
-            if(event.keyCode == 37){
-              prevPage();
-            }
-            if(event.keyCode == 39){
-              nextPage();
-            }
-          });
-          //click
-          $( "#left" ).click(function() {
-            prevPage();
-          });
-          $( "#right" ).click(function() {
-            nextPage();
-          });
-          $("#readmain").swipe( {
-            swipeRight:function() {
-                prevPage();
-            },
-            swipeLeft:function() {
-                nextPage();
-            },
-          });
-          //bind mouse
-          $(window).bind('DOMMouseScroll mousewheel', function(event) {
-            var delta = 0;
-            if (event.originalEvent.wheelDelta) {
-              delta = event.originalEvent.wheelDelta;
-            }else if (event.originalEvent.detail) {
-              delta = event.originalEvent.detail*-1;
-            }
-            if (delta >= 0) {
-                  prevPage();
-              }
-              else {
-                  nextPage();
-              }
-          });
-          //page animate
-          var origwidth = $("#content")[0].getBoundingClientRect().width;
-          var gap = 20;
-          function prevPage(){
-            if($("#content").offset().left > 0){ return;}
-            leftoff = $("#content").offset().left;
-            leftoff = leftoff+origwidth+gap;
-            $("#content").offset({left:leftoff});
-          }
-          function nextPage(){
-            leftoff = $("#content").offset().left;
-            leftoff = leftoff-origwidth-gap;
-            if ( leftoff + $("#content")[0].scrollWidth < 0) { return;}
-            $("#content").offset({left:leftoff});
-          }
-        });
-
-        </script>
+      <div id="readmain" data-load="{{ url_for('web.serve_book', book_id=txtfile, book_format='txt') }}">
+        <div id="left" class="arrow" >‹</div>
+        <div id="area"><pre id="content" class="content"></pre></div>
+        <div id="right" class="arrow">›</div>
+      </div>
     </body>
 </html>