From 64593eb0ca43116a2037d51cf2088ac3d408aa51 Mon Sep 17 00:00:00 2001
From: Hassan Abouelela <47495861+HassanAbouelela@users.noreply.github.com>
Date: Tue, 2 Mar 2021 20:20:10 +0300
Subject: Adds Basic Prism Stuff

Signed-off-by: Hassan Abouelela <47495861+HassanAbouelela@users.noreply.github.com>
---
 src/components/InputTypes/Code.tsx           |  11 --
 src/components/InputTypes/code/Code.tsx      |  74 ++++++++++
 src/components/InputTypes/code/prism_css.tsx | 194 +++++++++++++++++++++++++++
 src/components/InputTypes/index.tsx          |   8 +-
 4 files changed, 274 insertions(+), 13 deletions(-)
 delete mode 100644 src/components/InputTypes/Code.tsx
 create mode 100644 src/components/InputTypes/code/Code.tsx
 create mode 100644 src/components/InputTypes/code/prism_css.tsx

(limited to 'src')

diff --git a/src/components/InputTypes/Code.tsx b/src/components/InputTypes/Code.tsx
deleted file mode 100644
index 51ca98d..0000000
--- a/src/components/InputTypes/Code.tsx
+++ /dev/null
@@ -1,11 +0,0 @@
-/** @jsx jsx */
-import { jsx } from "@emotion/react";
-import React, { ChangeEvent } from "react";
-
-interface CodeProps {
-    handler: (event: ChangeEvent<HTMLInputElement>) => void
-}
-
-export default function Code(props: CodeProps): JSX.Element {
-    return <input type="text" className="text" onChange={props.handler}/>;
-}
diff --git a/src/components/InputTypes/code/Code.tsx b/src/components/InputTypes/code/Code.tsx
new file mode 100644
index 0000000..31b82f0
--- /dev/null
+++ b/src/components/InputTypes/code/Code.tsx
@@ -0,0 +1,74 @@
+/** @jsx jsx */
+import { jsx, css } from "@emotion/react";
+import React, { ChangeEvent } from "react";
+
+import prismStyles from "./prism_css";
+import Prism from 'prismjs';
+
+/**
+ * For supported languages, and language codes, see:
+ * https://prismjs.com/#supported-languages
+ */
+interface CodeProps {
+    handler: (event: ChangeEvent<HTMLInputElement>) => void,
+    language: string,
+}
+
+const blockStyles = css`
+  pre[class*="language-"] {
+    min-height: 20rem;
+    height: 100%;
+    width: 100%;
+    box-sizing: border-box;
+
+    resize: vertical;
+    padding: 1rem;
+    background: whitesmoke;
+
+    color: black;
+    font-family: Hind, Helvetica, Arial, sans-serif;
+
+    margin: auto;
+
+    border: 0.1rem solid black;
+    border-radius: 8px;
+    font-size: 1rem;
+  }
+`;
+
+const textareaStyles = css`
+  position: absolute;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  opacity: 0;
+  resize: none;
+
+  font-family: Hind, Helvetica, Arial, sans-serif;
+  padding: 1rem;
+  box-sizing: border-box;
+  font-size: 1rem;
+  border: 0.1rem solid transparent;
+  border-radius: 8px;
+`;
+
+export default class Code extends React.Component<CodeProps> {
+    constructor(props: CodeProps) {
+        super(props);
+    }
+
+    render() {
+        const ref: React.RefObject<HTMLInputElement> = React.createRef();
+        const placeholder = "print(\"hello world\")"
+
+        return <div css={[prismStyles, blockStyles, css`position: relative;`]}>
+            <pre className="language-js">
+                <code className="language-js" ref={ref}>{placeholder}</code>
+            </pre>
+            <textarea css={textareaStyles} onChange={event => {
+                ref.current!.textContent = event.target.value || placeholder;
+                Prism.highlightElement(ref.current!);
+            }}/>
+        </div>
+    }
+}
diff --git a/src/components/InputTypes/code/prism_css.tsx b/src/components/InputTypes/code/prism_css.tsx
new file mode 100644
index 0000000..7e45b41
--- /dev/null
+++ b/src/components/InputTypes/code/prism_css.tsx
@@ -0,0 +1,194 @@
+/* PrismJS 1.23.0
+https://prismjs.com/download.html#themes=prism&languages=python&plugins=line-numbers+autoloader+keep-markup+normalize-whitespace */
+/**
+ * prism.js default theme for JavaScript, CSS and HTML
+ * Based on dabblet (http://dabblet.com)
+ * @author Lea Verou
+ */
+
+/** @jsx jsx */
+import { css } from "@emotion/react";
+
+// Note: this file is a mostly unmodified version of the auto generated Prism CSS.
+// To update, you just need to paste the new css below, and update the link at the top.
+
+export default css`
+  code[class*="language-"],
+  pre[class*="language-"] {
+    color: black;
+    background: none;
+    text-shadow: 0 1px white;
+    font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
+    font-size: 1em;
+    text-align: left;
+    white-space: pre;
+    word-spacing: normal;
+    word-break: normal;
+    word-wrap: normal;
+    line-height: 1.5;
+
+    -moz-tab-size: 4;
+    -o-tab-size: 4;
+    tab-size: 4;
+
+    -webkit-hyphens: none;
+    -moz-hyphens: none;
+    -ms-hyphens: none;
+    hyphens: none;
+  }
+
+  pre[class*="language-"]::-moz-selection, pre[class*="language-"] ::-moz-selection,
+  code[class*="language-"]::-moz-selection, code[class*="language-"] ::-moz-selection {
+    text-shadow: none;
+    background: #b3d4fc;
+  }
+
+  pre[class*="language-"]::selection, pre[class*="language-"] ::selection,
+  code[class*="language-"]::selection, code[class*="language-"] ::selection {
+    text-shadow: none;
+    background: #b3d4fc;
+  }
+
+  @media print {
+    code[class*="language-"],
+    pre[class*="language-"] {
+      text-shadow: none;
+    }
+  }
+
+  /* Code blocks */
+
+  pre[class*="language-"] {
+    padding: 1em;
+    margin: .5em 0;
+    overflow: auto;
+  }
+
+  :not(pre) > code[class*="language-"],
+  pre[class*="language-"] {
+    background: #f5f2f0;
+  }
+
+  /* Inline code */
+
+  :not(pre) > code[class*="language-"] {
+    padding: .1em;
+    border-radius: .3em;
+    white-space: normal;
+  }
+
+  .token.comment,
+  .token.prolog,
+  .token.doctype,
+  .token.cdata {
+    color: slategray;
+  }
+
+  .token.punctuation {
+    color: #999;
+  }
+
+  .token.namespace {
+    opacity: .7;
+  }
+
+  .token.property,
+  .token.tag,
+  .token.boolean,
+  .token.number,
+  .token.constant,
+  .token.symbol,
+  .token.deleted {
+    color: #905;
+  }
+
+  .token.selector,
+  .token.attr-name,
+  .token.string,
+  .token.char,
+  .token.builtin,
+  .token.inserted {
+    color: #690;
+  }
+
+  .token.operator,
+  .token.entity,
+  .token.url,
+  .language-css .token.string,
+  .style .token.string {
+    color: #9a6e3a;
+    /* This background color was intended by the author of this theme. */
+    background: hsla(0, 0%, 100%, .5);
+  }
+
+  .token.atrule,
+  .token.attr-value,
+  .token.keyword {
+    color: #07a;
+  }
+
+  .token.function,
+  .token.class-name {
+    color: #DD4A68;
+  }
+
+  .token.regex,
+  .token.important,
+  .token.variable {
+    color: #e90;
+  }
+
+  .token.important,
+  .token.bold {
+    font-weight: bold;
+  }
+
+  .token.italic {
+    font-style: italic;
+  }
+
+  .token.entity {
+    cursor: help;
+  }
+
+  pre[class*="language-"].line-numbers {
+    position: relative;
+    padding-left: 3.8em;
+    counter-reset: linenumber;
+  }
+
+  pre[class*="language-"].line-numbers > code {
+    position: relative;
+    white-space: inherit;
+  }
+
+  .line-numbers .line-numbers-rows {
+    position: absolute;
+    pointer-events: none;
+    top: 0;
+    font-size: 100%;
+    left: -3.8em;
+    width: 3em; /* works for line-numbers below 1000 lines */
+    letter-spacing: -1px;
+    border-right: 1px solid #999;
+
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+
+  }
+
+  .line-numbers-rows > span {
+    display: block;
+    counter-increment: linenumber;
+  }
+
+  .line-numbers-rows > span:before {
+    content: counter(linenumber);
+    color: #999;
+    display: block;
+    padding-right: 0.8em;
+    text-align: right;
+  }
+`;
diff --git a/src/components/InputTypes/index.tsx b/src/components/InputTypes/index.tsx
index bc65248..d624b96 100644
--- a/src/components/InputTypes/index.tsx
+++ b/src/components/InputTypes/index.tsx
@@ -1,5 +1,5 @@
 import Checkbox from "./Checkbox";
-import Code from "./Code";
+import Code from "./code/Code";
 import Radio from "./Radio";
 import Range from "./Range";
 import Select from "./Select";
@@ -25,6 +25,10 @@ export default function create_input({ question, public_state }: QuestionProp, h
     // eslint-disable-next-line
     // @ts-ignore
     let options: string[] = question.data["options"];
+    // eslint-disable-next-line
+    // @ts-ignore
+    let language: string = question.data["language"] || "python";
+
     let valid = true;
     if (!public_state.get("valid")) {
         valid = false;
@@ -64,7 +68,7 @@ export default function create_input({ question, public_state }: QuestionProp, h
 
         case QuestionType.Code:
             // TODO: Implement
-            result = <Code handler={handler}/>;
+            result = <Code handler={handler} language={language}/>;
             break;
 
         default:
-- 
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