From 89e0d0d3edd5385cab8859b1d0784251b4aac15b Mon Sep 17 00:00:00 2001
From: Tyler Schicke <tyler_schicke@brown.edu>
Date: Mon, 15 Jul 2019 12:56:12 -0400
Subject: Added AB's tooltip dragging code

---
 src/client/util/TooltipTextMenu.tsx | 42 +++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'src/client/util/TooltipTextMenu.tsx')

diff --git a/src/client/util/TooltipTextMenu.tsx b/src/client/util/TooltipTextMenu.tsx
index 0d3adef2e..add6f902c 100644
--- a/src/client/util/TooltipTextMenu.tsx
+++ b/src/client/util/TooltipTextMenu.tsx
@@ -51,6 +51,7 @@ export class TooltipTextMenu {
         this.tooltip = document.createElement("div");
         this.tooltip.className = "tooltipMenu";
 
+        this.dragElement(this.tooltip);
         // this.createCollapse();
         // if (this._collapseBtn) {
         //     this.tooltip.appendChild(this._collapseBtn.render(this.view).dom);
@@ -269,6 +270,47 @@ export class TooltipTextMenu {
         // this.tooltip.appendChild(this.linkEditor);
     }
 
+    dragElement(elmnt: HTMLElement) {
+        var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
+        if (elmnt) {
+            // if present, the header is where you move the DIV from:
+            elmnt.onpointerdown = dragMouseDown;
+        }
+        const self = this;
+
+        function dragMouseDown(e: PointerEvent) {
+            e = e || window.event;
+            //e.preventDefault();
+            // get the mouse cursor position at startup:
+            pos3 = e.clientX;
+            pos4 = e.clientY;
+            document.onpointerup = closeDragElement;
+            // call a function whenever the cursor moves:
+            document.onpointermove = elementDrag;
+        }
+
+        function elementDrag(e: PointerEvent) {
+            e = e || window.event;
+            //e.preventDefault();
+            // calculate the new cursor position:
+            pos1 = pos3 - e.clientX;
+            pos2 = pos4 - e.clientY;
+            pos3 = e.clientX;
+            pos4 = e.clientY;
+            // set the element's new position:
+            elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
+            elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
+        }
+
+        function closeDragElement() {
+            // stop moving when mouse button is released:
+            document.onpointerup = null;
+            document.onpointermove = null;
+            //self.highlightSearchTerms(self.state, ["hello"]);
+            //FormattedTextBox.Instance.unhighlightSearchTerms();
+        }
+    }
+
     makeLink = (target: string) => {
         let node = this.view.state.selection.$from.nodeAfter;
         let link = this.view.state.schema.mark(this.view.state.schema.marks.link, { href: target });
-- 
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