From 124197658624b79426e666b72da7ef960367cf04 Mon Sep 17 00:00:00 2001
From: Andrew Kim <andrewdkim@users.noreply.github.com>
Date: Tue, 26 Feb 2019 02:17:34 -0500
Subject: finished stickies/area-selection and made them saveable, single line
 highlighting and annotation, ink for drawing on stickies and on the PDF
 canvas itself

---
 src/views/nodes/Annotation.tsx | 93 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/views/nodes/Annotation.tsx

(limited to 'src')

diff --git a/src/views/nodes/Annotation.tsx b/src/views/nodes/Annotation.tsx
new file mode 100644
index 000000000..6929aea76
--- /dev/null
+++ b/src/views/nodes/Annotation.tsx
@@ -0,0 +1,93 @@
+import "./ImageBox.scss";
+import React = require("react")
+import { observer } from "mobx-react"
+import { observable, action } from 'mobx';
+import 'react-pdf/dist/Page/AnnotationLayer.css'
+
+interface IProps{
+    Span: HTMLSpanElement;
+    X: number; 
+    Y: number; 
+
+}
+
+/**
+ * Annotation class is used to take notes on a particular highlight. You can also change highlighted span's color
+ * Improvements to be made: Removing the annotation when onRemove is called. (Removing this, not just the highlighted span). 
+ * Also need to support multiline highlighting
+ * 
+ * Written by: Andrew Kim
+ */
+@observer
+export class Annotation extends React.Component<IProps> {
+    
+    /**
+     * changes color of the span (highlighted section)
+     */
+    onColorChange = (e:React.PointerEvent) => {
+        if (e.currentTarget.innerHTML == "r"){
+            this.props.Span.style.backgroundColor = "rgba(255,0,0, 0.3)"
+        } else if (e.currentTarget.innerHTML == "b"){
+            this.props.Span.style.backgroundColor = "rgba(0,255, 255, 0.3)"
+        } else if (e.currentTarget.innerHTML == "y"){
+            this.props.Span.style.backgroundColor = "rgba(255,255,0, 0.3)"
+        } else if (e.currentTarget.innerHTML == "g"){
+            this.props.Span.style.backgroundColor = "rgba(76, 175, 80, 0.3)"
+        }
+      
+    }
+
+    /**
+     * removes the highlighted span. Supposed to remove Annotation too, but I don't know how to unmount this
+     */
+    @action
+    onRemove = (e:any) => {
+    
+        if(this.props.Span.parentElement){
+            let nodesArray = this.props.Span.parentElement.childNodes; 
+            nodesArray.forEach((e) => {
+                if (e == this.props.Span){
+                    if (this.props.Span.parentElement){
+                        e.remove();  
+                        
+                    }
+                }
+            }) 
+        }
+    }
+
+    render() {
+        return (
+            <div 
+            style = {{
+            position: "absolute",
+            top: "20px", 
+            left: "0px",  
+            zIndex: 1, 
+            transform: `translate(${this.props.X}px, ${this.props.Y}px)`,
+            
+            }}>
+                <div style = {{width:"200px", height:"50px"}}>
+                    <button
+                    style = {{borderRadius: "25px", width:"25%", height:"100%"}}
+                    onClick = {this.onRemove}
+                    >x</button>
+                    <div style = {{width:"75%", height: "100%" , display:"inline-block"}}>
+                        <button onPointerDown = {this.onColorChange} style = {{backgroundColor:"red", borderRadius:"50%", color: "transparent"}}>r</button>
+                        <button onPointerDown = {this.onColorChange} style = {{backgroundColor:"blue", borderRadius:"50%", color: "transparent"}}>b</button>
+                        <button onPointerDown = {this.onColorChange} style = {{backgroundColor:"yellow", borderRadius:"50%", color:"transparent"}}>y</button>
+                        <button onPointerDown = {this.onColorChange} style = {{backgroundColor:"green", borderRadius:"50%", color:"transparent"}}>g</button>
+                    </div>
+                    
+                </div>
+                <div  style = {{width:"200px", height:"200"}}>
+                    <textarea style = {{width: "100%", height: "100%"}}
+                    defaultValue = "Enter Text Here..."
+                   
+                    ></textarea>
+                </div>
+            </div>
+          
+        );
+    }
+}
\ No newline at end of file
-- 
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