From 47c45bd0b6f324ef77219f6211d03359a00cdd98 Mon Sep 17 00:00:00 2001
From: Alexander Yuzhin <alexander.yuzhin@onlyoffice.com>
Date: Fri, 19 Jul 2019 17:21:47 +0300
Subject: [PATCH] SE skeleton loader

---
 .../main/app/controller/Main.js               |   2 +
 apps/spreadsheeteditor/main/index.html        | 247 +++++++-----------
 .../main/resources/less/app.less              |  33 ++-
 3 files changed, 131 insertions(+), 151 deletions(-)

diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 7ee72540f..5eb974c52 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -143,6 +143,8 @@ define([
 //                    viewport.applicationUI.setVisible(true);
                 }
 
+                $('#editor_sdk').append('<div class="doc-placeholder">' + '<div class="columns"></div>'.repeat(2) + '</div>');
+
                 var value = Common.localStorage.getItem("sse-settings-fontrender");
                 if (value===null) value = window.devicePixelRatio > 1 ? '1' : '3';
                 Common.Utils.InternalSettings.set("sse-settings-fontrender", value);
diff --git a/apps/spreadsheeteditor/main/index.html b/apps/spreadsheeteditor/main/index.html
index 158ad8d9c..9a565c43f 100644
--- a/apps/spreadsheeteditor/main/index.html
+++ b/apps/spreadsheeteditor/main/index.html
@@ -20,157 +20,116 @@
             z-index: 10000;
         }
 
-        .loader-page {
+        .loadmask {
             width: 100%;
-            height: 170px;
-            bottom: 42%;
-            position: absolute;
-            text-align: center;
-            line-height: 10px;
+            height: 100%;
         }
 
-        .loader-logo {
-            max-height: 160px;
-            margin-bottom: 10px;
+        .loadmask > .brendpanel {
+            width: 100%;
+            height: 56px;
+            background: #40865c;
         }
 
-        .loader-page-romb {
-            width: 40px;
+        .loadmask > .brendpanel > div {
+            display: flex;
+            align-items: center;
+        }
+
+        .loadmask > .brendpanel .loading-logo {
+            padding: 0 24px 0 12px;
+            max-width: 200px;
+            height: 20px;
+        }
+
+        .loadmask > .brendpanel .loading-logo > i {
             display: inline-block;
+            width: 86px;
+            height: 20px;
+            background-image: url(http://192.168.3.191:8080/web-apps-pro/apps/common/main/resources/img/header/header-logo.png);
+            background-repeat: no-repeat;
         }
 
-        .loader-page-text {
+        .loadmask > .brendpanel .spacer {
+            margin-left: auto;
+        }
+
+        .loadmask > .brendpanel .circle {
+            vertical-align: middle;
+            width: 20px;
+            height: 20px;
+            border-radius: 12px;
+            margin: 4px 10px;
+            background: rgba(255, 255, 255, 0.2);
+
+            -webkit-animation: flickerAnimation 2s infinite ease-in-out;
+            -moz-animation: flickerAnimation 2s infinite ease-in-out;
+            -o-animation: flickerAnimation 2s infinite ease-in-out;
+            animation: flickerAnimation 2s infinite ease-in-out;
+        }
+
+        .loadmask > .brendpanel .rect {
+            vertical-align: middle;
+            width: 50px;
+            height: 12px;
+            border-radius: 3px;
+            margin: 0 10px;
+            background: rgba(255, 255, 255, 0.2);
+
+            -webkit-animation: flickerAnimation 2s infinite ease-in-out;
+            -moz-animation: flickerAnimation 2s infinite ease-in-out;
+            -o-animation: flickerAnimation 2s infinite ease-in-out;
+            animation: flickerAnimation 2s infinite ease-in-out;
+        }
+
+        .loadmask > .placeholder {
+            background: #fbfbfb;
             width: 100%;
-            bottom: 42%;
-            position: absolute;
-            text-align: center;
-            color: #888;
-            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
-            line-height: 20px;
+            height: 100%;
+            border: 1px solid #dfdfdf;
+            white-space: nowrap;
+
+            -webkit-animation: flickerAnimation 2s infinite ease-in-out;
+            -moz-animation: flickerAnimation 2s infinite ease-in-out;
+            -o-animation: flickerAnimation 2s infinite ease-in-out;
+            animation: flickerAnimation 2s infinite ease-in-out;
         }
 
-        .loader-page-text-loading {
-            font-size: 14px;
+        .loadmask > .placeholder > .columns {
+            width: 100%;
+            height: 100%;
+            display: inline-block;
+            background: linear-gradient(90deg, #d5d5d5 0px, rgba(0,0,0,0) 1px) 0 0,
+                        linear-gradient(rgba(0,255,0,0) 19px, #d5d5d5 20px) 0 0,
+                        linear-gradient( #f1f1f1 0px, #f1f1f1 20px) 0 0 repeat-x;
+            background-size: 80px 20px;
         }
 
-        .loader-page-text-customer {
-            font-size: 16px;
-            margin-bottom: 5px;
+        .loadmask > .placeholder > .columns:first-child {
+            background: linear-gradient(#f1f1f1 19px, #d5d5d5 20px) 0 0;
+            background-size: 20px 20px;
+            width: 35px;
         }
 
-        .romb {
-            width: 40px;
-            height: 40px;
-            -webkit-transform: rotate(135deg) skew(20deg, 20deg);
-            -moz-transform: rotate(135deg) skew(20deg, 20deg);
-            -ms-transform: rotate(135deg) skew(20deg, 20deg);
-            -o-transform: rotate(135deg) skew(20deg, 20deg);
-            position: absolute;
-            background: red;
-            border-radius: 6px;
-            -webkit-animation: movedown 3s infinite ease;
-            -moz-animation: movedown 3s infinite ease;
-            -ms-animation: movedown 3s infinite ease;
-            -o-animation: movedown 3s infinite ease;
-            animation: movedown 3s infinite ease;
+        @keyframes flickerAnimation {
+            0%   { opacity:1; }
+            50%  { opacity:0.3; }
+            100% { opacity:1; }
         }
-
-        #blue {
-            z-index: 3;
-            background: #55bce6;
-            -webkit-animation-name: blue;
-            -moz-animation-name: blue;
-            -ms-animation-name: blue;
-            -o-animation-name: blue;
-            animation-name: blue;
+        @-o-keyframes flickerAnimation{
+            0%   { opacity:1; }
+            50%  { opacity:0.3; }
+            100% { opacity:1; }
         }
-
-        #red {
-            z-index:1;
-            background: #de7a59;
-            -webkit-animation-name: red;
-            -moz-animation-name: red;
-            -ms-animation-name: red;
-            -o-animation-name: red;
-            animation-name: red;
+        @-moz-keyframes flickerAnimation{
+            0%   { opacity:1; }
+            50%  { opacity:0.3; }
+            100% { opacity:1; }
         }
-
-        #green {
-            z-index: 2;
-            background: #a1cb5c;
-            -webkit-animation-name: green;
-            -moz-animation-name: green;
-            -ms-animation-name: green;
-            -o-animation-name: green;
-            animation-name: green;
-        }
-
-        @-webkit-keyframes red {
-              0%    { top:120px; background: #de7a59; }
-             10%    { top:120px; background: #F2CBBF; }
-             14%    { background: #f4f4f4; top:120px; }
-             15%    { background: #f4f4f4; top:0;}
-             20%    { background: #E6E4E4; }
-             30%    { background: #D2D2D2; }
-             40%    { top:120px; }
-            100%    { top:120px; background: #de7a59; }
-        }
-
-        @keyframes red {
-              0%    { top:120px; background: #de7a59; }
-             10%    { top:120px; background: #F2CBBF; }
-             14%    { background: #f4f4f4; top:120px; }
-             15%    { background: #f4f4f4; top:0; }
-             20%    { background: #E6E4E4; }
-             30%    { background: #D2D2D2; }
-             40%    { top:120px; }
-            100%    { top:120px; background: #de7a59; }
-        }
-
-        @-webkit-keyframes green {
-              0%    { top:110px; background: #a1cb5c; opacity:1; }
-             10%    { top:110px; background: #CBE0AC; opacity:1; }
-             14%    { background: #f4f4f4; top:110px; opacity:1; }
-             15%    { background: #f4f4f4; top:0; opacity:1; }
-             20%    { background: #f4f4f4; top:0; opacity:0; }
-             25%    { background: #EFEFEF; top:0; opacity:1; }
-             30%    { background:#E6E4E4; }
-             70%    { top:110px; }
-            100%    { top:110px; background: #a1cb5c; }
-        }
-
-        @keyframes green {
-              0%    { top:110px; background: #a1cb5c; opacity:1; }
-             10%    { top:110px; background: #CBE0AC; opacity:1; }
-             14%    { background: #f4f4f4; top:110px; opacity:1; }
-             15%    { background: #f4f4f4; top:0; opacity:1; }
-             20%    { background: #f4f4f4; top:0; opacity:0; }
-             25%    { background: #EFEFEF; top:0; opacity:1; }
-             30%    { background:#E6E4E4; }
-             70%    { top:110px; }
-            100%    { top:110px; background: #a1cb5c; }
-        }
-
-        @-webkit-keyframes blue {
-              0%    { top:100px; background: #55bce6; opacity:1; }
-             10%    { top:100px; background: #BFE8F8; opacity:1; }
-             14%    { background: #f4f4f4; top:100px; opacity:1; }
-             15%    { background: #f4f4f4; top:0; opacity:1; }
-             20%    { background: #f4f4f4; top:0; opacity:0; }
-             25%    { background: #f4f4f4; top:0; opacity:0; }
-             45%    { background: #EFEFEF; top:0; opacity:0.2; }
-            100%    { top:100px; background: #55bce6; }
-        }
-
-        @keyframes blue {
-              0%    { top:100px; background: #55bce6; opacity:1; }
-             10%    { top:100px; background: #BFE8F8; opacity:1; }
-             14%    { background: #f4f4f4; top:100px; opacity:1; }
-             15%    { background: #f4f4f4; top:0; opacity:1; }
-             20%    { background: #f4f4f4; top:0; opacity:0; }
-             25%    { background: #f4f4f4; top:0; opacity:0; }
-             45%    { background: #EFEFEF; top:0; opacity:0.2; }
-            100%    { top:100px; background: #55bce6; }
+        @-webkit-keyframes flickerAnimation{
+            0%   { opacity:1; }
+            50%  { opacity:0.3; }
+            100% { opacity:1; }
         }
     </style>
 
@@ -246,21 +205,9 @@
         else if ( lang == 'vi') loading = 'Đang tải...';
         else if ( lang == 'zh') loading = '加载中...';
 
-        if (!stopLoading)
-            document.write(
-                '<div id="loading-mask" class="loadmask">' +
-                '<div class="loader-page" style="margin-bottom: ' + margin + 'px;' + ((logo!==null) ? 'height: auto;' : '') + '">' +
-                ((logo!==null) ? logo :
-                    '<div class="loader-page-romb">' +
-                    '<div class="romb" id="blue"></div>' +
-                    '<div class="romb" id="green"></div>' +
-                    '<div class="romb" id="red"></div>' +
-                    '</div>') +
-                '</div>' +
-                '<div class="loader-page-text">' +  customer +
-                '<div class="loader-page-text-loading">' + loading + '</div>' +
-                '</div>' +
-                '</div>');
+        if (stopLoading) {
+            document.getElementById('loading-mask').remove();
+        }
     </script>
 
     <link rel="stylesheet" type="text/css" href="../../../../sdkjs/cell/css/main.css"/>
@@ -270,7 +217,7 @@
     <!-- debug end -->
 </head>
 <body>
-
+    <div id="loading-mask" class="loadmask"><div class="brendpanel"><div><div class="loading-logo"><i></i></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="spacer"></div><div class="rect"></div></div><div><span class="rect"></span><span class="rect"></span><span class="rect"></span><span class="rect"></span><span class="rect"></span><div class="spacer"></div><span class="circle"></span><span class="circle"></span><span class="circle"></span></div></div><div class="placeholder"><div class="columns"></div><div class="columns"></div></div></div>
     <div id="viewport"></div>
 
     <script src="../../../vendor/svg-injector/svg-injector.min.js"></script>
@@ -294,7 +241,7 @@
     </script>
 
     <!-- debug begin -->
-    <script type="text/javascript">var less=less||{};less.env='development';</script>
+    <script type="text/javascript">var less=less||{};less.env='development';less.async=true;</script>
     <script src="../../../vendor/less/dist/less-2.7.1.js" type="text/javascript"></script>
     <!-- debug end -->
 
diff --git a/apps/spreadsheeteditor/main/resources/less/app.less b/apps/spreadsheeteditor/main/resources/less/app.less
index a5d13d177..7b7d265b2 100644
--- a/apps/spreadsheeteditor/main/resources/less/app.less
+++ b/apps/spreadsheeteditor/main/resources/less/app.less
@@ -142,4 +142,35 @@
 }
 
 @huge-icon-size: 37px;
-@x-huge-icon-size: 45px;
\ No newline at end of file
+@x-huge-icon-size: 45px;
+
+// Skeleton of workbook
+
+.doc-placeholder {
+    background: #fbfbfb;
+    width: 100%;
+    height: 100%;
+    border: 1px solid #dfdfdf;
+    white-space: nowrap;
+
+    -webkit-animation: flickerAnimation 2s infinite ease-in-out;
+    -moz-animation: flickerAnimation 2s infinite ease-in-out;
+    -o-animation: flickerAnimation 2s infinite ease-in-out;
+    animation: flickerAnimation 2s infinite ease-in-out;
+    
+    > .columns {
+        width: 100%;
+        height: 100%;
+        display: inline-block;
+        background: linear-gradient(90deg, #d5d5d5 0px, rgba(0,0,0,0) 1px) 0 0,
+                    linear-gradient(rgba(0,255,0,0) 19px, #d5d5d5 20px) 0 0,
+                    linear-gradient( #f1f1f1 0px, #f1f1f1 20px) 0 0 repeat-x;
+        background-size: 80px 20px;
+
+        &:first-child {
+            background: linear-gradient(#f1f1f1 19px, #d5d5d5 20px) 0 0;
+            background-size: 20px 20px;
+            width: 35px;
+        }
+    }
+}
\ No newline at end of file