Add SVG loading spiral to WASM demo

ffi/diplomat/js/examples/wasm-demo/index.html

@@ -237,5 +237,54 @@
                 </div>
             </div>
         </div>
+        <div id="bigspinner">
+            <!--
+            The MIT License (MIT)
+
+            Copyright (c) 2014 Sam Herbert
+
+            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.
+            -->
+            <svg width="135" height="135" viewBox="0 0 135 135" xmlns="http://www.w3.org/2000/svg" fill="#fff">
+                <path d="M67.447 58c5.523 0 10-4.477 10-10s-4.477-10-10-10-10 4.477-10 10 4.477 10 10 10zm9.448 9.447c0 5.523 4.477 10 10 10 5.522 0 10-4.477 10-10s-4.478-10-10-10c-5.523 0-10 4.477-10 10zm-9.448 9.448c-5.523 0-10 4.477-10 10 0 5.522 4.477 10 10 10s10-4.478 10-10c0-5.523-4.477-10-10-10zM58 67.447c0-5.523-4.477-10-10-10s-10 4.477-10 10 4.477 10 10 10 10-4.477 10-10z">
+                    <animateTransform
+                        attributeName="transform"
+                        type="rotate"
+                        from="0 67 67"
+                        to="-360 67 67"
+                        dur="2.5s"
+                        repeatCount="indefinite"/>
+                </path>
+                <path d="M28.19 40.31c6.627 0 12-5.374 12-12 0-6.628-5.373-12-12-12-6.628 0-12 5.372-12 12 0 6.626 5.372 12 12 12zm30.72-19.825c4.686 4.687 12.284 4.687 16.97 0 4.686-4.686 4.686-12.284 0-16.97-4.686-4.687-12.284-4.687-16.97 0-4.687 4.686-4.687 12.284 0 16.97zm35.74 7.705c0 6.627 5.37 12 12 12 6.626 0 12-5.373 12-12 0-6.628-5.374-12-12-12-6.63 0-12 5.372-12 12zm19.822 30.72c-4.686 4.686-4.686 12.284 0 16.97 4.687 4.686 12.285 4.686 16.97 0 4.687-4.686 4.687-12.284 0-16.97-4.685-4.687-12.283-4.687-16.97 0zm-7.704 35.74c-6.627 0-12 5.37-12 12 0 6.626 5.373 12 12 12s12-5.374 12-12c0-6.63-5.373-12-12-12zm-30.72 19.822c-4.686-4.686-12.284-4.686-16.97 0-4.686 4.687-4.686 12.285 0 16.97 4.686 4.687 12.284 4.687 16.97 0 4.687-4.685 4.687-12.283 0-16.97zm-35.74-7.704c0-6.627-5.372-12-12-12-6.626 0-12 5.373-12 12s5.374 12 12 12c6.628 0 12-5.373 12-12zm-19.823-30.72c4.687-4.686 4.687-12.284 0-16.97-4.686-4.686-12.284-4.686-16.97 0-4.687 4.686-4.687 12.284 0 16.97 4.686 4.687 12.284 4.687 16.97 0z">
+                    <animateTransform
+                        attributeName="transform"
+                        type="rotate"
+                        from="0 67 67"
+                        to="360 67 67"
+                        dur="8s"
+                        repeatCount="indefinite"/>
+                </path>
+            </svg>
+        </div>
+        <style type="text/css">
+            #bigspinner {
+                position: fixed;
+                top: 0;
+                width: 100%;
+                height: 100%;
+                background-color: rgba(0, 0, 0, 0.5);
+                z-index: 999;
+            }
+            #bigspinner svg {
+                position: absolute;
+                top: 10%;
+                width: 40%;
+                left: 30%;
+            }
+        </style>
     </body>
 </html>

ffi/diplomat/js/examples/wasm-demo/src/ts/app.ts

@@ -13,5 +13,6 @@ import 'bootstrap/js/dist/collapse';
 
     fdf.setup(dataProvider);
     dtf.setup(dataProvider);
-    seg.setup(dataProvider);   
+    seg.setup(dataProvider);
+    (document.querySelector("#bigspinner") as HTMLElement).style.display = "none";
 })()