Added pull from url functionality (dreampuf#16)

* initial commit

* Added pull from remote url and from querystring

Co-authored-by: Daniel Lim <[email protected]>

index.html

@@ -440,14 +440,36 @@
 
 
     /* come from sharing */
-    if (location.hash.length > 1) {
+		const params = new URLSearchParams(location.search.substring(1));
+		if (params.has('raw')) {
+			editor.getSession().setValue(params.get('raw'));
+      renderGraph();
+		} else if (params.has('compressed')) {
+			const compressed = params.get('compressed');
+		} else if (params.has('url')) {
+			const url = params.get('url');
+			let ok = false;
+			fetch(url)
+				.then(res => {
+					ok = res.ok;
+					return res.text();
+				})
+				.then(res => {
+					if (!ok) {
+						throw { message: res };
+					}
+
+					editor.getSession().setValue(res);
+					renderGraph();
+				}).catch(e => {
+					show_error(e);
+				});
+		} else if (location.hash.length > 1) {
       editor.getSession().setValue(decodeURIComponent(location.hash.substring(1)));
-    }
-
-    /* Init */
-    if (editor.getValue()) {
+		} else if (editor.getValue()) { // Init
       renderGraph();
     }
+
   })(document);
 </script>
 <script src="viz.js" type="text/javascript" charset="utf-8"></script>