From e08c0d5b228c8ca1103bb0d7368f3f65bb24b675 Mon Sep 17 00:00:00 2001
From: Fawn <fangrui_tong@brown.edu>
Date: Wed, 15 Jan 2020 17:49:37 -0500
Subject: abstracted mobile ink overlay stuff into its own component

---
 src/mobile/MobileInkOverlay.tsx | 75 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 src/mobile/MobileInkOverlay.tsx

(limited to 'src/mobile')

diff --git a/src/mobile/MobileInkOverlay.tsx b/src/mobile/MobileInkOverlay.tsx
new file mode 100644
index 000000000..240d23b32
--- /dev/null
+++ b/src/mobile/MobileInkOverlay.tsx
@@ -0,0 +1,75 @@
+import React = require('react');
+import { observer } from "mobx-react";
+import { MobileInkBoxContent, GestureContent } from "../server/Message";
+import { observable, action } from "mobx";
+import { GestureUtils } from "../pen-gestures/GestureUtils";
+
+
+@observer
+export default class MobileInkOverlay extends React.Component {
+    public static Instance: MobileInkOverlay;
+
+    private _mobileWidth: number = 0;
+    private _mobileHeight: number = 0;
+    @observable private _width: number = 0;
+    @observable private _height: number = 0;
+    @observable private _x: number = -300;
+    @observable private _y: number = -300;
+
+    constructor(props: Readonly<{}>) {
+        super(props);
+        MobileInkOverlay.Instance = this;
+    }
+
+    @action
+    initMobileInkOverlay(content: MobileInkBoxContent) {
+        const { width, height } = content;
+        this._mobileWidth = width ? width : 0;
+        this._mobileHeight = height ? height : 0;
+        this._width = width ? width : 0;
+        this._height = height ? height : 0;
+        this._x = 300; // TODO: center on screen
+        this._y = 25; // TODO: center on screen
+    }
+
+    drawStroke = (content: GestureContent) => {
+        const { points, bounds } = content;
+        const scale = 1;
+
+        const B = {
+            right: bounds.right + this._x,
+            left: bounds.left + this._x, // TODO: scale
+            bottom: bounds.bottom + this._y,
+            top: bounds.top + this._y, // TODO: scale
+            width: bounds.width * scale,
+            height: bounds.height * scale,
+        };
+
+        const target = document.elementFromPoint(points[0].X, points[0].Y);
+        target?.dispatchEvent(
+            new CustomEvent<GestureUtils.GestureEvent>("dashOnGesture",
+                {
+                    bubbles: true,
+                    detail: {
+                        points: points,
+                        gesture: GestureUtils.Gestures.Stroke,
+                        bounds: B
+                    }
+                }
+            )
+        );
+    }
+
+    render() {
+        return (
+            <div className="mobileInkOverlay" style={{
+                width: this._width,
+                height: this._height,
+                position: "absolute",
+                transform: `translate(${this._x}px, ${this._y}px)`,
+                zIndex: 30000,
+                pointerEvents: "none"
+            }}></div>
+        );
+    }
+}
\ No newline at end of file
-- 
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