Allow to close tabs using middle-clicks (#2995)

Signed-off-by: Luca Kröger <l.kroeger01@gmail.com>

src/renderer/components/dock/dock-tab.tsx

@@ -23,7 +23,7 @@ import "./dock-tab.scss";
 
 import React from "react";
 import { observer } from "mobx-react";
-import { boundMethod, cssNames, prevDefault } from "../../utils";
+import { boundMethod, cssNames, prevDefault, isMiddleClick } from "../../utils";
 import { dockStore, IDockTab } from "./dock.store";
 import { Tab, TabProps } from "../tabs";
 import { Icon } from "../icon";
@@ -88,13 +88,13 @@ export class DockTab extends React.Component<DockTabProps> {
     const { className, moreActions, ...tabProps } = this.props;
     const { title, pinned } = tabProps.value;
     const label = (
-      <div className="flex gaps align-center">
+      <div className="flex gaps align-center" onAuxClick={isMiddleClick(prevDefault(this.close))}>
         <span className="title" title={title}>{title}</span>
         {moreActions}
         {!pinned && (
           <Icon
             small material="close"
-            title="Close (Ctrl+W)"
+            title="Close (Ctrl+Shift+W)"
             onClick={prevDefault(this.close)}
           />
         )}

src/renderer/utils/index.ts

@@ -38,3 +38,4 @@ export * from "./convertMemory";
 export * from "./convertCpu";
 export * from "./metricUnitsToNumber";
 export * from "./display-booleans";
+export * from "./isMiddleClick";

src/renderer/utils/isMiddleClick.ts

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2021 OpenLens Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+import type React from "react";
+
+// Helper for inlining middleClick checks 
+// <form onAuxClick={isMiddleClick(() => console.log('do some action'))}>
+//    <input name="text"/>
+//    <button type="submit">Action</button>
+// </form>
+
+export function isMiddleClick<E extends React.MouseEvent>(callback: (evt: E) => any) {
+  return function (evt: E) {
+    if(evt.button === 1) {
+      return callback(evt);
+    }
+  };
+}