feat(): started work on new import system

public/app/features/dashboard/upload.ts

@@ -0,0 +1,65 @@
+///<reference path="../../headers/common.d.ts" />
+
+import kbn from 'app/core/utils/kbn';
+import coreModule from 'app/core/core_module';
+
+var wnd: any = window;
+
+class DashboardImporter {
+
+  prepareForImport(dash) {
+    dash.id = null;
+    return Promise.resolve(dash);
+  }
+
+}
+
+
+/** @ngInject */
+function uploadDashboardDirective(timer, alertSrv, $location) {
+  return {
+    restrict: 'A',
+    link: function(scope) {
+      function file_selected(evt) {
+        var files = evt.target.files; // FileList object
+        var readerOnload = function() {
+          return function(e) {
+            var dash;
+            try {
+              dash = JSON.parse(e.target.result);
+            } catch (err) {
+              console.log(err);
+              scope.appEvent('alert-error', ['Import failed', 'JSON -> JS Serialization failed: ' + err.message]);
+              return;
+            }
+
+            var importer = new DashboardImporter();
+            importer.prepareForImport(dash).then(modified => {
+              wnd.grafanaImportDashboard = modified;
+              var title = kbn.slugifyForUrl(dash.title);
+
+              scope.$apply(function() {
+                $location.path('/dashboard-import/' + title);
+              });
+            });
+          };
+        };
+
+        for (var i = 0, f; f = files[i]; i++) {
+          var reader = new FileReader();
+          reader.onload = readerOnload();
+          reader.readAsText(f);
+        }
+      }
+      // Check for the various File API support.
+      if (wnd.File && wnd.FileReader && wnd.FileList && wnd.Blob) {
+        // Something
+        document.getElementById('dashupload').addEventListener('change', file_selected, false);
+      } else {
+        alertSrv.set('Oops','Sorry, the HTML5 File APIs are not fully supported in this browser.','error');
+      }
+    }
+  };
+}
+
+coreModule.directive('dashUpload', uploadDashboardDirective);