1 files changed, 85 insertions, 0 deletions
diff --git a/src/client/views/nodes/DocuLinkView.tsx b/src/client/views/nodes/DocuLinkView.tsx
new file mode 100644
index 000000000..622d41047
--- /dev/null
+++ b/src/client/views/nodes/DocuLinkView.tsx
@@ -0,0 +1,85 @@
+import { action, observable } from "mobx";
+import { observer } from "mobx-react";
+import { Doc, Opt } from "../../../new_fields/Doc";
+import { NumCast, StrCast } from "../../../new_fields/Types";
+import { Utils } from '../../../Utils';
+import { DocumentManager } from "../../util/DocumentManager";
+import "./DocumentView.scss";
+import React = require("react");
+import { DragManager, DragLinksAsDocuments } from "../../util/DragManager";
+import { UndoManager } from "../../util/UndoManager";
+
+
+interface DocuLinkViewProps {
+    Document: Doc;
+    isSelected: () => boolean;
+    addDocTab: (doc: Doc, dataDoc: Opt<Doc>, where: string) => void;
+    anchor: string;
+    otherAnchor: string;
+    scale: () => number;
+    contentDiv: HTMLDivElement | null;
+    link: Doc;
+    index: number;
+    selectedLink: () => number;
+    selectLink: (id: number) => void;
+    blacklist: Opt<Doc>
+}
+
+@observer
+export class DocuLinkView extends React.Component<DocuLinkViewProps> {
+    _downx = 0;
+    _downy = 0;
+    @observable _x = 0;
+    @observable _y = 0;
+    @observable _selected = false;
+    _ref = React.createRef<HTMLDivElement>();
+
+    onPointerDown = (e: React.PointerEvent) => {
+        this._downx = e.clientX;
+        this._downy = e.clientY;
+        document.removeEventListener("pointermove", this.onPointerMove);
+        document.removeEventListener("pointerup", this.onPointerUp);
+        document.addEventListener("pointermove", this.onPointerMove);
+        document.addEventListener("pointerup", this.onPointerUp);
+        e.stopPropagation();
+    }
+    onPointerMove = action((e: PointerEvent) => {
+        if (this.props.contentDiv && (Math.abs(e.clientX - this._downx) > 5 || Math.abs(e.clientY - this._downy) > 5)) {
+            let bounds = this.props.contentDiv.getBoundingClientRect();
+            let pt = Utils.getNearestPointInPerimeter(bounds.left, bounds.top, bounds.width, bounds.height, e.clientX, e.clientY);
+            let separation = Math.sqrt((pt[0] - e.clientX) * (pt[0] - e.clientX) + (pt[1] - e.clientY) * (pt[1] - e.clientY));
+            let dragdist = Math.sqrt((pt[0] - this._downx) * (pt[0] - this._downx) + (pt[1] - this._downy) * (pt[1] - this._downy))
+            if (separation > 100) {
+                DragLinksAsDocuments(this._ref.current!, pt[0], pt[1], this.props.Document, this.props.link);
+                document.removeEventListener("pointermove", this.onPointerMove);
+                document.removeEventListener("pointerup", this.onPointerUp);
+            } else if (dragdist > separation) {
+                this.props.link[this.props.anchor + "_x"] = (pt[0] - bounds.left) / bounds.width * 100;
+                this.props.link[this.props.anchor + "_y"] = (pt[1] - bounds.top) / bounds.height * 100;
+            }
+        }
+    })
+    onPointerUp = (e: PointerEvent) => {
+        document.removeEventListener("pointermove", this.onPointerMove);
+        document.removeEventListener("pointerup", this.onPointerUp);
+        if (Math.abs(e.clientX - this._downx) < 3 && Math.abs(e.clientY - this._downy) < 3 && (e.button === 2 || e.ctrlKey)) {
+            this.props.selectLink(this.props.selectedLink() === this.props.index ? -1 : this.props.index);
+        }
+    }
+    onClick = (e: React.MouseEvent) => {
+        if (Math.abs(e.clientX - this._downx) < 3 && Math.abs(e.clientY - this._downy) < 3 && (e.button !== 2 && !e.ctrlKey)) {
+            DocumentManager.Instance.FollowLink(this.props.link, this.props.link[this.props.anchor] as Doc, document => this.props.addDocTab(document, undefined, "inTab"), false);
+        }
+        e.stopPropagation();
+    }
+    render() {
+        let y = NumCast(this.props.link[this.props.anchor + "_y"], 100);
+        let x = NumCast(this.props.link[this.props.anchor + "_x"], 100);
+        let c = StrCast(this.props.link[this.props.anchor + "_background"], "lightblue");
+        return <div onPointerDown={this.onPointerDown} onClick={this.onClick} title={StrCast((this.props.link[this.props.otherAnchor]! as Doc).title)} ref={this._ref} style={{
+            cursor: "default", position: "absolute", background: c, width: "25px", height: "25px", borderRadius: "20px", textAlign: "center", left: `calc(${x}% - 12.5px)`, top: `calc(${y}% - 12.5px)`,
+            transform: `scale(${1 / this.props.scale()})`,
+            border: this.props.selectedLink() === this.props.index && this.props.isSelected() ? "solid 3px black" : undefined
+        }} />
+    }
+}