macOS touchbar support

terminus-core/src/services/touchbar.service.ts

@@ -0,0 +1,69 @@
+import { Injectable, Inject, NgZone } from '@angular/core'
+import { Subject, Subscription } from 'rxjs'
+import { AppService } from './app.service'
+import { ConfigService } from './config.service'
+import { ElectronService } from './electron.service'
+import { BaseTabComponent } from '../components/baseTab.component'
+import { IToolbarButton, ToolbarButtonProvider } from '../api'
+
+@Injectable()
+export class TouchbarService {
+    tabSelected$ = new Subject<number>()
+    private titleSubscriptions = new Map<BaseTabComponent, Subscription>()
+    private tabsSegmentedControl: Electron.TouchBarSegmentedControl
+    private tabSegments: Electron.SegmentedControlSegment[] = []
+
+    constructor (
+        private app: AppService,
+        @Inject(ToolbarButtonProvider) private toolbarButtonProviders: ToolbarButtonProvider[],
+        private config: ConfigService,
+        private electron: ElectronService,
+        private zone: NgZone,
+    ) {
+        app.tabsChanged$.subscribe(() => this.update())
+        app.activeTabChange$.subscribe(() => this.update())
+        app.tabOpened$.subscribe(tab => {
+            let sub = tab.titleChange$.subscribe(title => {
+                this.tabSegments[app.tabs.indexOf(tab)].label = title
+                this.tabsSegmentedControl.segments = this.tabSegments
+            })
+            this.titleSubscriptions.set(tab, sub)
+        })
+        app.tabClosed$.subscribe(tab => {
+            this.titleSubscriptions.get(tab).unsubscribe()
+            this.titleSubscriptions.delete(tab)
+        })
+    }
+
+    update () {
+        let buttons: IToolbarButton[] = []
+        this.config.enabledServices(this.toolbarButtonProviders).forEach(provider => {
+            buttons = buttons.concat(provider.provide())
+        })
+        buttons.sort((a, b) => (a.weight || 0) - (b.weight || 0))
+        this.tabSegments = this.app.tabs.map(tab => ({
+            label: tab.title,
+        }))
+        this.tabsSegmentedControl = new this.electron.TouchBar.TouchBarSegmentedControl({
+            segments: this.tabSegments,
+            selectedIndex: this.app.tabs.indexOf(this.app.activeTab),
+            change: (selectedIndex) => this.zone.run(() => {
+                this.app.selectTab(this.app.tabs[selectedIndex])
+            })
+        })
+        let touchBar = new this.electron.TouchBar({
+            items: [
+                this.tabsSegmentedControl,
+                new this.electron.TouchBar.TouchBarSpacer({size: 'flexible'}),
+                new this.electron.TouchBar.TouchBarSpacer({size: 'small'}),
+                ...buttons.map(button => new this.electron.TouchBar.TouchBarButton({
+                    label: button.title,
+                        // backgroundColor: '#0022cc',
+                    click: () => this.zone.run(() => button.click()),
+                }))
+            ]
+        })
+        this.electron.app.window.setTouchBar(touchBar)
+    }
+
+}