5 files changed, 44 insertions, 17 deletions
diff --git a/src/client/util/DocumentManager.ts b/src/client/util/DocumentManager.ts
index 8fa460bca..bb1345044 100644
--- a/src/client/util/DocumentManager.ts
+++ b/src/client/util/DocumentManager.ts
@@ -111,9 +111,11 @@ export class DocumentManager {
             pairs.push(...linksList.reduce((pairs, link) => {
                 if (link) {
                     let linkToDoc = LinkManager.Instance.getOppositeAnchor(link, dv.props.Document);
-                    DocumentManager.Instance.getDocumentViews(linkToDoc).map(docView1 => {
-                        pairs.push({ a: dv, b: docView1, l: link });
-                    });
+                    if (linkToDoc) {
+                        DocumentManager.Instance.getDocumentViews(linkToDoc).map(docView1 => {
+                            pairs.push({ a: dv, b: docView1, l: link });
+                        });
+                    }
                 }
                 return pairs;
             }, [] as { a: DocumentView, b: DocumentView, l: Doc }[]));
diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index cb71db2c5..8e44631a3 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -61,16 +61,18 @@ export function SetupDrag(
 export async function DragLinkAsDocument(dragEle: HTMLElement, x: number, y: number, linkDoc: Doc, sourceDoc: Doc) {
     let draggeddoc = LinkManager.Instance.getOppositeAnchor(linkDoc, sourceDoc);
 
-    let moddrag = await Cast(draggeddoc.annotationOn, Doc);
-    let dragdocs = moddrag ? [moddrag] : [draggeddoc];
-    let dragData = new DragManager.DocumentDragData(dragdocs, dragdocs);
-    dragData.dropAction = "alias" as dropActionType;
-    DragManager.StartLinkedDocumentDrag([dragEle], sourceDoc, dragData, x, y, {
-        handlers: {
-            dragComplete: action(emptyFunction),
-        },
-        hideSource: false
-    });
+    if (draggeddoc) {
+        let moddrag = await Cast(draggeddoc.annotationOn, Doc);
+        let dragdocs = moddrag ? [moddrag] : [draggeddoc];
+        let dragData = new DragManager.DocumentDragData(dragdocs, dragdocs);
+        dragData.dropAction = "alias" as dropActionType;
+        DragManager.StartLinkedDocumentDrag([dragEle], sourceDoc, dragData, x, y, {
+            handlers: {
+                dragComplete: action(emptyFunction),
+            },
+            hideSource: false
+        });
+    }
 }
 
 export async function DragLinksAsDocuments(dragEle: HTMLElement, x: number, y: number, sourceDoc: Doc) {
@@ -80,9 +82,16 @@ export async function DragLinksAsDocuments(dragEle: HTMLElement, x: number, y: n
     if (srcTarg) {
         let linkDocs = LinkManager.Instance.getAllRelatedLinks(srcTarg);
         if (linkDocs) {
-            draggedDocs = linkDocs.map(link => {
-                return LinkManager.Instance.getOppositeAnchor(link, sourceDoc);
-            });
+            linkDocs.forEach((doc) => {
+                let opp = LinkManager.Instance.getOppositeAnchor(doc, sourceDoc);
+                if (opp) {
+                    draggedDocs.push(opp);
+                }
+            }
+            )
+            // draggedDocs = linkDocs.map(link => {
+            //     return LinkManager.Instance.getOppositeAnchor(link, sourceDoc);
+            // });
         }
     }
     if (draggedDocs.length) {
diff --git a/src/client/util/LinkManager.ts b/src/client/util/LinkManager.ts
index d6ea6013b..1ed040aa4 100644
--- a/src/client/util/LinkManager.ts
+++ b/src/client/util/LinkManager.ts
@@ -232,7 +232,7 @@ export class LinkManager {
     // finds the opposite anchor of a given anchor in a link
     //TODO This should probably return undefined if there isn't an opposite anchor
     //TODO This should also await the return value of the anchor so we don't filter out promises
-    public getOppositeAnchor(linkDoc: Doc, anchor: Doc): Doc {
+    public getOppositeAnchor(linkDoc: Doc, anchor: Doc): Doc | undefined {
         if (Doc.AreProtosEqual(anchor, Cast(linkDoc.anchor1, Doc, null))) {
             return Cast(linkDoc.anchor2, Doc, null);
         } else {
diff --git a/src/client/util/RichTextSchema.tsx b/src/client/util/RichTextSchema.tsx
index 2a57180d3..b6402da13 100644
--- a/src/client/util/RichTextSchema.tsx
+++ b/src/client/util/RichTextSchema.tsx
@@ -400,6 +400,20 @@ export const marks: { [index: string]: MarkSpec } = {
         }]
     },
 
+    p18: {
+        parseDOM: [{ style: 'font-size: 18px;' }],
+        toDOM: () => ['span', {
+            style: 'font-size: 18px;'
+        }]
+    },
+
+    p20: {
+        parseDOM: [{ style: 'font-size: 20px;' }],
+        toDOM: () => ['span', {
+            style: 'font-size: 20px;'
+        }]
+    },
+
     p24: {
         parseDOM: [{ style: 'font-size: 24px;' }],
         toDOM: () => ['span', {
diff --git a/src/client/util/TooltipTextMenu.tsx b/src/client/util/TooltipTextMenu.tsx
index 4fcc16ddd..930379c65 100644
--- a/src/client/util/TooltipTextMenu.tsx
+++ b/src/client/util/TooltipTextMenu.tsx
@@ -107,6 +107,8 @@ export class TooltipTextMenu {
         this.fontSizeToNum.set(schema.marks.p12, 12);
         this.fontSizeToNum.set(schema.marks.p14, 14);
         this.fontSizeToNum.set(schema.marks.p16, 16);
+        this.fontSizeToNum.set(schema.marks.p18, 18);
+        this.fontSizeToNum.set(schema.marks.p20, 20);
         this.fontSizeToNum.set(schema.marks.p24, 24);
         this.fontSizeToNum.set(schema.marks.p32, 32);
         this.fontSizeToNum.set(schema.marks.p48, 48);