From 8ab1e09906399232aa9bc7017b3195f4cd0ff746 Mon Sep 17 00:00:00 2001
From: bob <bcz@cs.brown.edu>
Date: Tue, 7 Jan 2020 15:18:54 -0500
Subject: fixed up text toolbar a little.  fixed doculink anchors on hyperlinks

---
 .../CollectionFreeFormLinkView.tsx                 | 35 +++++++++++++++++++---
 1 file changed, 31 insertions(+), 4 deletions(-)

(limited to 'src/client/views/collections/collectionFreeForm/CollectionFreeFormLinkView.tsx')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinkView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinkView.tsx
index 059393142..1382b01d3 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinkView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinkView.tsx
@@ -8,6 +8,7 @@ import v5 = require("uuid/v5");
 import { DocumentType } from "../../../documents/DocumentTypes";
 import { observable, action, reaction, IReactionDisposer } from "mobx";
 import { StrCast } from "../../../../new_fields/Types";
+import { Id } from "../../../../new_fields/FieldSymbols";
 
 export interface CollectionFreeFormLinkViewProps {
     A: DocumentView;
@@ -41,10 +42,36 @@ export class CollectionFreeFormLinkView extends React.Component<CollectionFreeFo
                     apt.point.x, apt.point.y);
                 const afield = StrCast(this.props.A.props.Document[StrCast(this.props.A.props.layoutKey, "layout")]).indexOf("anchor1") === -1 ? "anchor2" : "anchor1";
                 const bfield = afield === "anchor1" ? "anchor2" : "anchor1";
-                this.props.A.props.Document[afield + "_x"] = (apt.point.x - abounds.left) / abounds.width * 100;
-                this.props.A.props.Document[afield + "_y"] = (apt.point.y - abounds.top) / abounds.height * 100;
-                this.props.A.props.Document[bfield + "_x"] = (bpt.point.x - bbounds.left) / bbounds.width * 100;
-                this.props.A.props.Document[bfield + "_y"] = (bpt.point.y - bbounds.top) / bbounds.height * 100;
+
+                // really hacky stuff to make the DocuLinkBox display where we want it to:
+                //   if there's an element in the DOM with the id of the opposite anchor, then that DOM element is a hyperlink source for the current anchor and we want to place our link box at it's top right
+                //   otherwise, we just use the computed nearest point on the document boundary to the target Document
+                const targetAhyperlink = window.document.getElementById((this.props.LinkDocs[0][afield] as Doc)[Id]);
+                const targetBhyperlink = window.document.getElementById((this.props.LinkDocs[0][bfield] as Doc)[Id]);
+                if (!targetBhyperlink) {
+                    this.props.A.props.Document[afield + "_x"] = (apt.point.x - abounds.left) / abounds.width * 100;
+                    this.props.A.props.Document[afield + "_y"] = (apt.point.y - abounds.top) / abounds.height * 100;
+                } else {
+                    setTimeout(() => {
+                        (this.props.A.props.Document[(this.props.A.props as any).fieldKey] as Doc);
+                        let m = targetBhyperlink.getBoundingClientRect();
+                        let mp = this.props.A.props.ScreenToLocalTransform().transformPoint(m.right, m.top + 5);
+                        this.props.A.props.Document[afield + "_x"] = mp[0] / this.props.A.props.PanelWidth() * 100;
+                        this.props.A.props.Document[afield + "_y"] = mp[1] / this.props.A.props.PanelHeight() * 100;
+                    }, 0);
+                }
+                if (!targetAhyperlink) {
+                    this.props.A.props.Document[bfield + "_x"] = (bpt.point.x - bbounds.left) / bbounds.width * 100;
+                    this.props.A.props.Document[bfield + "_y"] = (bpt.point.y - bbounds.top) / bbounds.height * 100;
+                } else {
+                    setTimeout(() => {
+                        (this.props.B.props.Document[(this.props.B.props as any).fieldKey] as Doc);
+                        let m = targetAhyperlink.getBoundingClientRect();
+                        let mp = this.props.B.props.ScreenToLocalTransform().transformPoint(m.right, m.top + 5);
+                        this.props.B.props.Document[afield + "_x"] = mp[0] / this.props.B.props.PanelWidth() * 100;
+                        this.props.B.props.Document[afield + "_y"] = mp[1] / this.props.B.props.PanelHeight() * 100;
+                    }, 0);
+                }
             })
             , { fireImmediately: true });
     }
-- 
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