.

app/src/components/app.ts

@@ -52,6 +52,7 @@ export class AppComponent {
     toasterConfig: ToasterConfig
     tabs: Tab[] = []
     activeTab: Tab
+    lastTabIndex = 0
 
     constructor(
         private modal: ModalService,
@@ -78,10 +79,19 @@ export class AppComponent {
             if (hotkey == 'new-tab') {
                 this.newTab()
             }
-            if (hotkey == 'close-tab') {
-                if (this.activeTab) {
+            if (this.activeTab) {
+                if (hotkey == 'close-tab') {
                     this.closeTab(this.activeTab)
                 }
+                if (hotkey == 'toggle-last-tab') {
+                    this.toggleLastTab()
+                }
+                if (hotkey == 'next-tab') {
+                    this.nextTab()
+                }
+                if (hotkey == 'previous-tab') {
+                    this.previousTab()
+                }
             }
         })
 
@@ -118,12 +128,34 @@ export class AppComponent {
     }
 
     selectTab (tab) {
+        this.lastTabIndex = this.tabs.indexOf(this.activeTab)
         this.activeTab = tab
         setImmediate(() => {
             this.elementRef.nativeElement.querySelector(':scope .tab.active iframe').focus()
         })
     }
 
+    toggleLastTab () {
+        if (!this.lastTabIndex || this.lastTabIndex >= this.tabs.length) {
+            this.lastTabIndex = 0
+        }
+        this.selectTab(this.tabs[this.lastTabIndex])
+    }
+
+    nextTab () {
+        let tabIndex = this.tabs.indexOf(this.activeTab)
+        if (tabIndex < this.tabs.length - 1) {
+            this.selectTab(this.tabs[tabIndex + 1])
+        }
+    }
+
+    previousTab () {
+        let tabIndex = this.tabs.indexOf(this.activeTab)
+        if (tabIndex > 0) {
+            this.selectTab(this.tabs[tabIndex - 1])
+        }
+    }
+
     closeTab (tab) {
         tab.session.gracefullyDestroy()
         let newIndex = Math.max(0, this.tabs.indexOf(tab) - 1)

app/src/components/hotkeyDisplay.less

@@ -4,11 +4,13 @@
     .stroke {
         display: inline-block;
         margin: 0 5px;
+        background: #222;
+        border-radius: 2px;
+        box-shadow: 0 1px 0 rgba(0,0,0,.5);
+        text-shadow: 0 1px 0 rgba(0,0,0,.5);
 
         .key-container {
             display: inline-block;
-            background: #222;
-            text-shadow: 0 1px 0 rgba(0,0,0,.5);
 
             .key {
                 display: inline-block;

app/src/components/hotkeyHint.less

@@ -2,7 +2,6 @@
     display: block;
 
     .line {
-        background: #333;
         padding: 3px 10px;
     }
 }

app/src/components/hotkeyHint.pug

@@ -1,4 +1,4 @@
 .body(*ngIf='partialHotkeyMatches?.length > 0')
-    .line(*ngFor='let match of partialHotkeyMatches; trackBy: match?.id', @animateLine)
+    .line(*ngFor='let match of partialHotkeyMatches; trackBy: trackByFn', @animateLine)
         hotkey-display([model]='match.strokes')
         span {{ hotkeys.getHotkeyDescription(match.id).name }}

app/src/components/hotkeyHint.ts

@@ -1,4 +1,4 @@
-import { Component, ChangeDetectionStrategy, trigger, style, animate, transition, state } from '@angular/core'
+import { Component, ChangeDetectionStrategy, Input, trigger, style, animate, transition, state } from '@angular/core'
 import { HotkeysService, PartialHotkeyMatch } from 'services/hotkeys'
 
 
@@ -32,28 +32,39 @@ import { HotkeysService, PartialHotkeyMatch } from 'services/hotkeys'
   ]
 })
 export class HotkeyHintComponent {
-    partialHotkeyMatches: PartialHotkeyMatch[]
+    @Input() partialHotkeyMatches: PartialHotkeyMatch[]
     private keyTimeoutInterval: NodeJS.Timer = null
 
     constructor (
         public hotkeys: HotkeysService,
     ) {
         this.hotkeys.key.subscribe(() => {
+            //console.log('Keystrokes', this.hotkeys.getCurrentKeystrokes())
             let partialMatches = this.hotkeys.getCurrentPartiallyMatchedHotkeys()
             if (partialMatches.length > 0) {
-                console.log('Partial matches:', partialMatches)
-                this.partialHotkeyMatches = partialMatches
+                //console.log('Partial matches:', partialMatches)
+                this.setMatches(partialMatches)
 
                 if (this.keyTimeoutInterval == null) {
                     this.keyTimeoutInterval = setInterval(() => {
                         if (this.hotkeys.getCurrentPartiallyMatchedHotkeys().length == 0) {
                             clearInterval(this.keyTimeoutInterval)
                             this.keyTimeoutInterval = null
-                            this.partialHotkeyMatches = null
+                            this.setMatches(null)
                         }
                     }, 500)
                 }
+            } else {
+                this.setMatches(null)
             }
         })
     }
+
+    setMatches (matches: PartialHotkeyMatch[]) {
+        this.partialHotkeyMatches = matches
+    }
+
+    trackByFn (_, item) {
+        return item && item.id
+    }
 }

app/src/services/hotkeys.ts

@@ -28,6 +28,21 @@ const HOTKEYS: HotkeyDescription[] = [
         name: 'Close tab',
         defaults: [['Ctrl+Shift+W'], ['Ctrl+A', 'K']],
     },
+    {
+        id: 'toggle-last-tab',
+        name: 'Toggle last tab',
+        defaults: [['Ctrl+A', 'A'], ['Ctrl+A', 'Ctrl+A']],
+    },
+    {
+        id: 'next-tab',
+        name: 'Next tab',
+        defaults: [['Ctrl+Shift-ArrowRight'], ['Ctrl+A', 'N']],
+    },
+    {
+        id: 'previous-tab',
+        name: 'Previous tab',
+        defaults: [['Ctrl+Shift-ArrowLeft'], ['Ctrl+A', 'P']],
+    },
 ]
 
 
@@ -79,7 +94,7 @@ export class HotkeysService {
     emitNativeEvent (name, nativeEvent) {
         nativeEvent.event = name
 
-        console.log(nativeEvent)
+        //console.log(nativeEvent)
         this.currentKeystrokes.push({ event: nativeEvent, time: performance.now() })
 
         this.zone.run(() => {
@@ -144,7 +159,7 @@ export class HotkeysService {
                 let currentStrokes = this.getCurrentKeystrokes()
 
                 for (let matchLength = Math.min(currentStrokes.length, sequence.length); matchLength > 0; matchLength--) {
-                    console.log(sequence, currentStrokes.slice(currentStrokes.length - sequence.length))
+                    //console.log(sequence, currentStrokes.slice(currentStrokes.length - sequence.length))
                     if (sequence.slice(0, matchLength).every((x, index) => {
                         return x.toLowerCase() == currentStrokes[currentStrokes.length - matchLength + index].toLowerCase()
                     })) {

app/src/services/hotkeys.util.ts

@@ -46,6 +46,11 @@ export function stringifyKeySequence(events: NativeKeyEvent[]): string[] {
             if (lastEvent.shiftKey) {
                 itemKeys.push('Shift')
             }
+
+            if (['Control', 'Shift', 'Alt', 'Command'].includes(lastEvent.key)) {
+                // TODO make this optional?
+                continue
+            }
             itemKeys.push(lastEvent.key)
             items.push(itemKeys.join('+'))
         }