splits WIP (#49)

terminus-core/src/api/index.ts

@@ -16,3 +16,4 @@ export { HotkeysService } from '../services/hotkeys.service'
 export { HostAppService, Platform } from '../services/hostApp.service'
 export { ShellIntegrationService } from '../services/shellIntegration.service'
 export { ThemesService } from '../services/themes.service'
+export { TabsService } from '../services/tabs.service'

terminus-core/src/api/tabRecovery.ts

@@ -1,4 +1,4 @@
-import { TabComponentType } from '../services/app.service'
+import { TabComponentType } from '../services/tabs.service'
 
 export interface RecoveredTab {
     type: TabComponentType,

terminus-core/src/components/baseTab.component.ts

@@ -6,8 +6,6 @@ export interface BaseTabProcess {
 }
 
 export abstract class BaseTabComponent {
-    private static lastTabID = 0
-    id: number
     title: string
     customTitle: string
     hasFocus = false
@@ -31,7 +29,6 @@ export abstract class BaseTabComponent {
     get destroyed$ (): Observable<void> { return this.destroyed }
 
     constructor () {
-        this.id = BaseTabComponent.lastTabID++
         this.focused$.subscribe(() => {
             this.hasFocus = true
         })

terminus-core/src/components/splitTab.component.ts

@@ -0,0 +1,283 @@
+import { Subscription } from 'rxjs'
+import { Component, ViewChild, ViewContainerRef, EmbeddedViewRef } from '@angular/core'
+import { BaseTabComponent } from './baseTab.component'
+import { TabsService } from '../services/tabs.service'
+import { HotkeysService } from '../services/hotkeys.service'
+
+export declare type SplitOrientation = 'v' | 'h'
+export declare type SplitDirection = 'r' | 't' | 'b' | 'l'
+
+export class SplitContainer {
+    orientation: SplitOrientation = 'h'
+    children: (BaseTabComponent | SplitContainer)[] = []
+    ratios: number[] = []
+
+    allTabs () {
+        let r = []
+        for (let child of this.children) {
+            if (child instanceof SplitContainer) {
+                r = r.concat(child.allTabs())
+            } else {
+                r.push(child)
+            }
+        }
+        return r
+    }
+
+    normalize () {
+        for (let i = 0; i < this.children.length; i++) {
+            let child = this.children[i]
+
+            if (child instanceof SplitContainer) {
+                child.normalize()
+
+                if (child.children.length === 0) {
+                    this.children.splice(i, 1)
+                    this.ratios.splice(i, 1)
+                    i--
+                    continue
+                } else if (child.children.length === 1) {
+                    this.children[i] = child.children[0]
+                } else if (child.orientation === this.orientation) {
+                    let ratio = this.ratios[i]
+                    this.children.splice(i, 1)
+                    this.ratios.splice(i, 1)
+                    for (let j = 0; j < child.children.length; j++) {
+                        this.children.splice(i, 0, child.children[j])
+                        this.ratios.splice(i, 0, child.ratios[j] * ratio)
+                        i++
+                    }
+                }
+            }
+        }
+
+        let s = 0
+        for (let x of this.ratios) {
+            s += x
+        }
+        this.ratios = this.ratios.map(x => x / s)
+    }
+}
+
+@Component({
+    selector: 'splitTab',
+    template: '<ng-container #vc></ng-container>',
+    styles: [
+        ':host { position: relative; flex: auto; display: block; }'
+    ]
+})
+export class SplitTabComponent extends BaseTabComponent {
+    root: SplitContainer
+    viewRefs: Map<BaseTabComponent, EmbeddedViewRef<any>> = new Map()
+    @ViewChild('vc', { read: ViewContainerRef }) viewContainer: ViewContainerRef
+    hotkeysSubscription: Subscription
+    focusedTab: BaseTabComponent
+
+    constructor (
+        protected hotkeys: HotkeysService,
+        private tabsService: TabsService,
+    ) {
+        super()
+        this.root = new SplitContainer()
+        this.setTitle('')
+
+        this.focused$.subscribe(() => {
+            this.allTabs().forEach(x => x.emitFocused())
+            this.focus(this.focusedTab)
+        })
+        this.blurred$.subscribe(() => this.allTabs().forEach(x => x.emitBlurred()))
+
+        this.hotkeysSubscription = this.hotkeys.matchedHotkey.subscribe(hotkey => {
+            if (!this.hasFocus) {
+                return
+            }
+            switch (hotkey) {
+            case 'split-right':
+                this.splitTab(this.focusedTab, 'r')
+                break
+            case 'split-bottom':
+                this.splitTab(this.focusedTab, 'b')
+                break
+            case 'split-top':
+                this.splitTab(this.focusedTab, 't')
+                break
+            case 'split-left':
+                this.splitTab(this.focusedTab, 'l')
+                break
+            case 'split-nav-left':
+                this.navigate('l')
+                break
+            case 'split-nav-right':
+                this.navigate('r')
+                break
+            case 'split-nav-up':
+                this.navigate('t')
+                break
+            case 'split-nav-down':
+                this.navigate('b')
+                break
+            }
+        })
+    }
+
+    ngOnDestroy () {
+        this.hotkeysSubscription.unsubscribe()
+    }
+
+    allTabs () {
+        return [...this.root.allTabs()]
+    }
+
+    focus (tab: BaseTabComponent) {
+        this.focusedTab = tab
+        for (let x of this.allTabs()) {
+            if (x !== tab) {
+                x.emitBlurred()
+            }
+        }
+        if (tab) {
+            tab.emitFocused()
+        }
+        this.layout()
+    }
+
+    focusAnyIn (parent: BaseTabComponent | SplitContainer) {
+        if (!parent) {
+            return
+        }
+        if (parent instanceof SplitContainer) {
+            this.focusAnyIn(parent.children[0])
+        } else {
+            this.focus(parent)
+        }
+    }
+
+    insert (tab: BaseTabComponent, relative: BaseTabComponent, dir: SplitDirection) {
+        let target = this.getParent(relative) || this.root
+        let insertIndex = target.children.indexOf(relative)
+
+        if (
+            (target.orientation === 'v' && ['l', 'r'].includes(dir)) ||
+            (target.orientation === 'h' && ['t', 'b'].includes(dir))
+        ) {
+            let newContainer = new SplitContainer()
+            newContainer.orientation = (target.orientation === 'v') ? 'h' : 'v'
+            newContainer.children = [relative]
+            newContainer.ratios = [1]
+            target.children[insertIndex] = newContainer
+            target = newContainer
+            insertIndex = 0
+        }
+
+        if (insertIndex === -1) {
+            insertIndex = 0
+        } else {
+            insertIndex += (dir === 'l' || dir === 't') ? 0 : 1
+        }
+
+        for (let i = 0; i < target.children.length; i++) {
+            target.ratios[i] *= target.children.length / (target.children.length + 1)
+        }
+        target.ratios.splice(insertIndex, 0, 1 / (target.children.length + 1))
+        target.children.splice(insertIndex, 0, tab)
+
+        let ref = this.viewContainer.insert(tab.hostView) as EmbeddedViewRef<any>
+        this.viewRefs.set(tab, ref)
+
+        ref.rootNodes[0].addEventListener('click', () => this.focus(tab))
+
+        setImmediate(() => {
+            this.layout()
+            this.focus(tab)
+        })
+
+        tab.titleChange$.subscribe(t => this.setTitle(t))
+        tab.activity$.subscribe(a => a ? this.displayActivity() : this.clearActivity())
+        tab.progress$.subscribe(p => this.setProgress(p))
+        if (tab.title) {
+            this.setTitle(tab.title)
+        }
+    }
+
+    navigate (dir: SplitDirection) {
+        let rel: BaseTabComponent | SplitContainer = this.focusedTab
+        let parent = this.getParent(rel)
+        let orientation = ['l', 'r'].includes(dir) ? 'h' : 'v'
+
+        while (parent !== this.root && parent.orientation !== orientation) {
+            rel = parent
+            parent = this.getParent(rel)
+        }
+
+        if (parent.orientation !== orientation) {
+            return
+        }
+
+        let index = parent.children.indexOf(rel)
+        if (['l', 't'].includes(dir)) {
+            if (index > 0) {
+                this.focusAnyIn(parent.children[index - 1])
+            }
+        } else {
+            if (index < parent.children.length - 1) {
+                this.focusAnyIn(parent.children[index + 1])
+            }
+        }
+    }
+
+    async splitTab (tab: BaseTabComponent, dir: SplitDirection) {
+        let newTab = await this.tabsService.duplicate(tab)
+        this.insert(newTab, tab, dir)
+    }
+
+    getParent (tab: BaseTabComponent | SplitContainer, root?: SplitContainer): SplitContainer {
+        root = root || this.root
+        for (let child of root.children) {
+            if (child instanceof SplitContainer) {
+                let r = this.getParent(tab, child)
+                if (r) {
+                    return r
+                }
+            }
+            if (child === tab) {
+                return root
+            }
+        }
+        return null
+    }
+
+    async canClose (): Promise<boolean> {
+        return !(await Promise.all(this.allTabs().map(x => x.canClose()))).some(x => !x)
+    }
+
+    private layout () {
+        this.root.normalize()
+        this.layoutInternal(this.root, 0, 0, 100, 100)
+    }
+
+    private layoutInternal (root: SplitContainer, x: number, y: number, w: number, h: number) {
+        let size = (root.orientation === 'v') ? h : w
+        let sizes = root.ratios.map(x => x * size)
+
+        let offset = 0
+        root.children.forEach((child, i) => {
+            let childX = (root.orientation === 'v') ? x : (x + offset)
+            let childY = (root.orientation === 'v') ? (y + offset) : y
+            let childW = (root.orientation === 'v') ? w : sizes[i]
+            let childH = (root.orientation === 'v') ? sizes[i] : h
+            if (child instanceof SplitContainer) {
+                this.layoutInternal(child, childX, childY, childW, childH)
+            } else {
+                let element = this.viewRefs.get(child).rootNodes[0]
+                element.style.position = 'absolute'
+                element.style.left = `${childX}%`
+                element.style.top = `${childY}%`
+                element.style.width = `${childW}%`
+                element.style.height = `${childH}%`
+
+                element.style.opacity = (child === this.focusedTab) ? 1 : 0.75
+            }
+            offset += sizes[i]
+        })
+    }
+}

terminus-core/src/configDefaults.linux.yaml

@@ -36,4 +36,18 @@ hotkeys:
     - 'Alt-9'
   tab-10:
     - 'Alt-0'
+  split-right:
+    - 'Ctrl-Shift-E'
+  split-bottom:
+    - 'Ctrl-Shift-D'
+  split-left: []
+  split-top: []
+  split-nav-right:
+    - 'Ctrl-Alt-ArrowRight'
+  split-nav-down:
+    - 'Ctrl-Alt-ArrowDown'
+  split-nav-up:
+    - 'Ctrl-Alt-ArrowUp'
+  split-nav-left:
+    - 'Ctrl-Alt-ArrowLeft'
 pluginBlacklist: ['ssh']

terminus-core/src/configDefaults.macos.yaml

@@ -34,4 +34,18 @@ hotkeys:
     - '⌘-9'
   tab-10:
     - '⌘-0'
+  split-right:
+    - '⌘-Shift-D'
+  split-bottom:
+    - '⌘-D'
+  split-left: []
+  split-top: []
+  split-nav-right:
+    - '⌘-⌥-ArrowRight'
+  split-nav-down:
+    - '⌘-⌥-ArrowDown'
+  split-nav-up:
+    - '⌘-⌥-ArrowUp'
+  split-nav-left:
+    - '⌘-⌥-ArrowLeft'
 pluginBlacklist: ['ssh']

terminus-core/src/configDefaults.windows.yaml

@@ -36,4 +36,18 @@ hotkeys:
     - 'Alt-9'
   tab-10:
     - 'Alt-0'
+  split-right:
+    - 'Ctrl-Shift-E'
+  split-bottom:
+    - 'Ctrl-Shift-D'
+  split-left: []
+  split-top: []
+  split-nav-right:
+    - 'Ctrl-Alt-ArrowRight'
+  split-nav-down:
+    - 'Ctrl-Alt-ArrowDown'
+  split-nav-up:
+    - 'Ctrl-Alt-ArrowUp'
+  split-nav-left:
+    - 'Ctrl-Alt-ArrowLeft'
 pluginBlacklist: []

terminus-core/src/index.ts

@@ -18,6 +18,7 @@ import { TitleBarComponent } from './components/titleBar.component'
 import { ToggleComponent } from './components/toggle.component'
 import { WindowControlsComponent } from './components/windowControls.component'
 import { RenameTabModalComponent } from './components/renameTabModal.component'
+import { SplitTabComponent } from './components/splitTab.component'
 
 import { AutofocusDirective } from './directives/autofocus.directive'
 
@@ -66,10 +67,12 @@ const PROVIDERS = [
         RenameTabModalComponent,
         SafeModeModalComponent,
         AutofocusDirective,
+        SplitTabComponent,
     ],
     entryComponents: [
         RenameTabModalComponent,
         SafeModeModalComponent,
+        SplitTabComponent,
     ],
     exports: [
         CheckboxComponent,

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

@@ -1,13 +1,13 @@
 import { Observable, Subject, AsyncSubject } from 'rxjs'
 import { takeUntil } from 'rxjs/operators'
-import { Injectable, ComponentFactoryResolver, Injector } from '@angular/core'
+import { Injectable } from '@angular/core'
 import { BaseTabComponent } from '../components/baseTab.component'
+import { SplitTabComponent } from '../components/splitTab.component'
 import { Logger, LogService } from './log.service'
 import { ConfigService } from './config.service'
 import { HostAppService } from './hostApp.service'
 import { TabRecoveryService } from './tabRecovery.service'
-
-export declare type TabComponentType = new (...args: any[]) => BaseTabComponent
+import { TabsService, TabComponentType } from './tabs.service'
 
 class CompletionObserver {
     get done$ (): Observable<void> { return this.done }
@@ -58,19 +58,20 @@ export class AppService {
     get ready$ (): Observable<void> { return this.ready }
 
     constructor (
-        private componentFactoryResolver: ComponentFactoryResolver,
         private config: ConfigService,
         private hostApp: HostAppService,
-        private injector: Injector,
         private tabRecovery: TabRecoveryService,
+        private tabsService: TabsService,
         log: LogService,
     ) {
         this.logger = log.create('app')
 
         this.hostApp.windowCloseRequest$.subscribe(() => this.closeWindow())
 
-        this.tabRecovery.recoverTabs().then(tabs => {
-            for (let tab of tabs) {
+        /*this.tabRecovery.recoverTabs().then(tabs => {
+            for (let
+            this.openNewTab(tab.type, tab.options)
+            tab of tabs) {
                 this.openNewTab(tab.type, tab.options)
             }
 
@@ -80,16 +81,10 @@ export class AppService {
             setInterval(() => {
                 tabRecovery.saveTabs(this.tabs)
             }, 30000)
-        })
+        })*/
     }
 
-    openNewTab (type: TabComponentType, inputs?: any): BaseTabComponent {
-        let componentFactory = this.componentFactoryResolver.resolveComponentFactory(type)
-        let componentRef = componentFactory.create(this.injector)
-        let tab = componentRef.instance
-        tab.hostView = componentRef.hostView
-        Object.assign(tab, inputs || {})
-
+    addTabRaw (tab: BaseTabComponent) {
         this.tabs.push(tab)
         this.selectTab(tab)
         this.tabsChanged.next()
@@ -100,6 +95,19 @@ export class AppService {
                 this.hostApp.setTitle(title)
             }
         })
+    }
+
+    openNewTabRaw (type: TabComponentType, inputs?: any): BaseTabComponent {
+        let tab = this.tabsService.create(type, inputs)
+        this.addTabRaw(tab)
+        return tab
+    }
+
+    openNewTab (type: TabComponentType, inputs?: any): BaseTabComponent {
+        let splitTab = this.tabsService.create(SplitTabComponent) as SplitTabComponent
+        let tab = this.tabsService.create(type, inputs)
+        splitTab.insert(tab, null, 'r')
+        this.addTabRaw(splitTab)
         return tab
     }
 
@@ -178,13 +186,9 @@ export class AppService {
     }
 
     async duplicateTab (tab: BaseTabComponent) {
-        let token = await tab.getRecoveryToken()
-        if (!token) {
-            return
-        }
-        let recoveredTab = await this.tabRecovery.recoverTab(token)
-        if (recoveredTab) {
-            this.openNewTab(recoveredTab.type, recoveredTab.options)
+        let dup = await this.tabsService.duplicate(tab)
+        if (dup) {
+            this.addTabRaw(dup)
         }
     }
 

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

@@ -275,6 +275,38 @@ export class AppHotkeyProvider extends HotkeyProvider {
             id: 'tab-10',
             name: 'Tab 10',
         },
+        {
+            id: 'split-right',
+            name: 'Split to the right',
+        },
+        {
+            id: 'split-bottom',
+            name: 'Split to the bottom',
+        },
+        {
+            id: 'split-left',
+            name: 'Split to the left',
+        },
+        {
+            id: 'split-top',
+            name: 'Split to the top',
+        },
+        {
+            id: 'split-nav-up',
+            name: 'Focus the pane above',
+        },
+        {
+            id: 'split-nav-down',
+            name: 'Focus the pane below',
+        },
+        {
+            id: 'split-nav-left',
+            name: 'Focus the pane on the left',
+        },
+        {
+            id: 'split-nav-right',
+            name: 'Focus the pane on the right',
+        },
     ]
 
     async provide (): Promise<IHotkeyDescription[]> {

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

@@ -0,0 +1,38 @@
+import { Injectable, ComponentFactoryResolver, Injector } from '@angular/core'
+import { BaseTabComponent } from '../components/baseTab.component'
+import { TabRecoveryService } from './tabRecovery.service'
+
+export declare type TabComponentType = new (...args: any[]) => BaseTabComponent
+
+@Injectable({ providedIn: 'root' })
+export class TabsService {
+    constructor (
+        private componentFactoryResolver: ComponentFactoryResolver,
+        private injector: Injector,
+        private tabRecovery: TabRecoveryService,
+    ) {
+
+    }
+
+    create (type: TabComponentType, inputs?: any): BaseTabComponent {
+        let componentFactory = this.componentFactoryResolver.resolveComponentFactory(type)
+        let componentRef = componentFactory.create(this.injector)
+        let tab = componentRef.instance
+        tab.hostView = componentRef.hostView
+        Object.assign(tab, inputs || {})
+        return tab
+    }
+
+    async duplicate (tab: BaseTabComponent): Promise<BaseTabComponent> {
+        let token = await tab.getRecoveryToken()
+        if (!token) {
+            return null
+        }
+        let dup = await this.tabRecovery.recoverTab(token)
+        if (dup) {
+            return this.create(dup.type, dup.options)
+        }
+        return null
+    }
+
+}

terminus-terminal/package.json

@@ -46,11 +46,11 @@
     "mz": "^2.6.0",
     "node-pty": "^0.8.0",
     "ps-node": "^0.1.6",
-    "runes": "^0.4.2",
-    "windows-native-registry": "^1.0.6"
+    "runes": "^0.4.2"
   },
   "optionalDependencies": {
     "macos-native-processlist": "^1.0.0",
+    "windows-native-registry": "^1.0.6",
     "windows-process-tree": "^0.2.3"
   },
   "false": {}

terminus-terminal/src/frontends/xtermFrontend.ts

@@ -79,6 +79,9 @@ export class XTermFrontend extends Frontend {
         host.addEventListener('mousedown', event => this.mouseEvent.next(event as MouseEvent))
         host.addEventListener('mouseup', event => this.mouseEvent.next(event as MouseEvent))
         host.addEventListener('mousewheel', event => this.mouseEvent.next(event as MouseEvent))
+
+        let ro = new window['ResizeObserver'](() => this.resizeHandler())
+        ro.observe(host)
     }
 
     detach (host: HTMLElement): void {