GUAC-932: Replace green spinner with spinning cog.

guacamole/src/main/webapp/app/index/styles/loading.css

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2013 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+.loading {
+    position: relative;
+    min-height: 200px;
+}
+
+.loading * {
+    visibility: hidden;
+}
+
+.loading::before {
+
+    display: block;
+    position: absolute;
+    content: '';
+    
+    /* Dictated by size of image */
+    width: 96px;
+    height: 96px;
+    margin-left: -48px;
+    margin-top: -48px;
+    
+    top: 50%;
+    left: 50%;
+    
+    background-image: url('images/cog.png');
+    background-size: 96px 96px;
+    background-position: center center;
+    background-repeat: no-repeat;
+    
+    animation:         spinning-cog 4s linear infinite;
+    -moz-animation:    spinning-cog 4s linear infinite;
+    -webkit-animation: spinning-cog 4s linear infinite;
+    
+}
+
+@keyframes spinning-cog {
+    0%   { transform: rotate(0deg);   }
+    100% { transform: rotate(360deg); }
+}
+
+@-moz-keyframes spinning-cog {
+    0%   { transform: rotate(0deg);   }
+    100% { transform: rotate(360deg); }
+}
+
+@-webkit-keyframes spinning-cog {
+    0%   { transform: rotate(0deg);   }
+    100% { transform: rotate(360deg); }
+}

guacamole/src/main/webapp/app/index/styles/ui.css

@@ -423,14 +423,3 @@ div.logout-panel {
 .button.back {
     background-image: url('images/action-icons/guac-back.png');
 }
-
-.loading {
-    background-image: url(images/spinner.gif);
-    background-position: center;
-    background-repeat: no-repeat;
-    min-height: 200px;
-}
-
-.loading * {
-    visibility: hidden;
-}