made color selection undoable and display color updates based on first item in selected documents

1 files changed, 12 insertions, 2 deletions

diff --git a/src/client/util/SelectionManager.ts b/src/client/util/SelectionManager.ts
index 3bc71ad42..41e6ec786 100644
--- a/src/client/util/SelectionManager.ts
+++ b/src/client/util/SelectionManager.ts
@@ -1,8 +1,9 @@
 import { observable, action, runInAction, IReactionDisposer, reaction, autorun } from "mobx";
-import { Doc } from "../../new_fields/Doc";
+import { Doc, Opt } from "../../new_fields/Doc";
 import { DocumentView } from "../views/nodes/DocumentView";
 import { FormattedTextBox } from "../views/nodes/FormattedTextBox";
-import { NumCast } from "../../new_fields/Types";
+import { NumCast, StrCast } from "../../new_fields/Types";
+import { InkingControl } from "../views/InkingControl";
 
 export namespace SelectionManager {
 
@@ -11,6 +12,7 @@ export namespace SelectionManager {
         @observable IsDragging: boolean = false;
         @observable SelectedDocuments: Array<DocumentView> = [];
 
+
         @action
         SelectDoc(docView: DocumentView, ctrlPressed: boolean): void {
             // if doc is not in SelectedDocuments, add it
@@ -41,6 +43,14 @@ export namespace SelectionManager {
     }
 
     const manager = new Manager();
+    reaction(() => manager.SelectedDocuments, sel => {
+        let firstView = sel[0];
+        let doc = firstView.props.Document;
+        let targetDoc = doc.isTemplate ? doc : Doc.GetProto(doc);
+        let targetColor = StrCast(targetDoc.backgroundColor);
+        targetColor = targetColor.length === 0 ? "#FFFFFFFF" : targetColor;
+        InkingControl.Instance.updateSelectedColor(targetColor);
+    });
 
     export function DeselectDoc(docView: DocumentView): void {
         manager.DeselectDoc(docView);