Merge branch 'master' of github-tsch-brown:browngraphicslab/Dash-Web into schema_fixes

1 files changed, 27 insertions, 13 deletions

diff --git a/src/client/util/SelectionManager.ts b/src/client/util/SelectionManager.ts
index 0e22d576c..7dbb81e76 100644
--- a/src/client/util/SelectionManager.ts
+++ b/src/client/util/SelectionManager.ts
@@ -1,4 +1,4 @@
-import { observable, action } from "mobx";
+import { observable, action, runInAction } from "mobx";
 import { Doc } from "../../new_fields/Doc";
 import { DocumentView } from "../views/nodes/DocumentView";
 import { FormattedTextBox } from "../views/nodes/FormattedTextBox";
@@ -6,19 +6,27 @@ import { NumCast } from "../../new_fields/Types";
 
 export namespace SelectionManager {
     class Manager {
-        @observable
-        SelectedDocuments: Array<DocumentView> = [];
+        @observable IsDragging: boolean = false;
+        @observable SelectedDocuments: Array<DocumentView> = [];
 
         @action
-        SelectDoc(doc: DocumentView, ctrlPressed: boolean): void {
+        SelectDoc(docView: DocumentView, ctrlPressed: boolean): void {
             // if doc is not in SelectedDocuments, add it
-            if (!ctrlPressed) {
-                this.DeselectAll();
-            }
+            if (manager.SelectedDocuments.indexOf(docView) === -1) {
+                if (!ctrlPressed) {
+                    this.DeselectAll();
+                }
 
-            if (manager.SelectedDocuments.indexOf(doc) === -1) {
-                manager.SelectedDocuments.push(doc);
-                doc.props.whenActiveChanged(true);
+                manager.SelectedDocuments.push(docView);
+                docView.props.whenActiveChanged(true);
+            }
+        }
+        @action
+        DeselectDoc(docView: DocumentView): void {
+            let ind = manager.SelectedDocuments.indexOf(docView);
+            if (ind !== -1) {
+                manager.SelectedDocuments.splice(ind, 1);
+                docView.props.whenActiveChanged(false);
             }
         }
         @action
@@ -31,8 +39,11 @@ export namespace SelectionManager {
 
     const manager = new Manager();
 
-    export function SelectDoc(doc: DocumentView, ctrlPressed: boolean): void {
-        manager.SelectDoc(doc, ctrlPressed);
+    export function DeselectDoc(docView: DocumentView): void {
+        manager.DeselectDoc(docView);
+    }
+    export function SelectDoc(docView: DocumentView, ctrlPressed: boolean): void {
+        manager.SelectDoc(docView, ctrlPressed);
     }
 
     export function IsSelected(doc: DocumentView): boolean {
@@ -51,8 +62,11 @@ export namespace SelectionManager {
         if (found) manager.SelectDoc(found, false);
     }
 
+    export function SetIsDragging(dragging: boolean) { runInAction(() => manager.IsDragging = dragging); }
+    export function GetIsDragging() { return manager.IsDragging; }
+
     export function SelectedDocuments(): Array<DocumentView> {
-        return manager.SelectedDocuments;
+        return manager.SelectedDocuments.slice();
     }
     export function ViewsSortedHorizontally(): DocumentView[] {
         let sorted = SelectionManager.SelectedDocuments().slice().sort((doc1, doc2) => {