Make react-mde zero dependencies

Author: andrerpena

src/components/MdeToolbar.tsx

@@ -3,9 +3,9 @@ import {Command, CommandGroup, GetIcon} from "../types";
 import { MdeToolbarButtonGroup } from "./MdeToolbarButtonGroup";
 import { MdeToolbarDropdown } from "./MdeToolbarDropdown";
 import { MdeToolbarButton } from "./MdeToolbarButton";
-import * as classNames from "classnames";
 import { Tab } from "../types/Tab";
 import { L18n } from "..";
+import {classNames} from "../util/ClassNames";
 
 export interface MdeToolbarProps {
   getIconFromProvider: GetIcon;

src/components/ReactMde.tsx

@@ -5,13 +5,12 @@ import {
 } from "../types";
 import {getDefaultCommands} from "../commands";
 import {TextArea, MdePreview, MdeToolbar, MdeFontAwesomeIcon} from ".";
-import * as classNames from "classnames";
 import {extractCommandMap} from "../util/CommandUtils";
 import {Tab} from "../types/Tab";
 import {L18n} from "..";
 import {enL18n} from "../l18n/react-mde.en";
 import {CommandOrchestrator, TextAreaCommandOrchestrator} from "../commandOrchestrator";
-import {SvgIcon} from "../icons/SvgIcon";
+import {classNames} from "../util/ClassNames";
 
 export interface ReactMdeProps {
     value: string;

src/util/ClassNames.ts

@@ -0,0 +1,33 @@
+/*!
+  Copyright (c) 2018 Jed Watson.
+  Licensed under the MIT License (MIT), see
+  http://jedwatson.github.io/classnames
+*/
+
+export function classNames(...args: any[]) {
+    const classes = [];
+
+    for (let i = 0; i < arguments.length; i++) {
+        const arg = arguments[i];
+        if (!arg) continue;
+
+        const argType = typeof arg;
+
+        if (argType === "string" || argType === "number") {
+            classes.push(arg);
+        } else if (Array.isArray(arg) && arg.length) {
+            var inner = classNames.apply(null, arg);
+            if (inner) {
+                classes.push(inner);
+            }
+        } else if (argType === "object") {
+            for (let key in arg) {
+                if (arg.hasOwnProperty(key) && arg[key]) {
+                    classes.push(key);
+                }
+            }
+        }
+    }
+
+    return classes.join(" ");
+}

src/util/InsertText.ts

@@ -1,3 +1,9 @@
+/*!
+ * The MIT License
+   Copyright (c) 2018 Dmitriy Kubyshkin
+   Copied from https://github.com/grassator/insert-text-at-cursor
+ */
+
 /**
  * @param {HTMLElement} input
  * @return {boolean}