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baseTerminalTab.component.ts
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baseTerminalTab.component.ts
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import { Observable, Subject, Subscription, first, auditTime } from 'rxjs'
import { Spinner } from 'cli-spinner'
import colors from 'ansi-colors'
import { NgZone, OnInit, OnDestroy, Injector, ViewChild, HostBinding, Input, ElementRef, InjectFlags } from '@angular/core'
import { trigger, transition, style, animate, AnimationTriggerMetadata } from '@angular/animations'
import { AppService, ConfigService, BaseTabComponent, HostAppService, HotkeysService, NotificationsService, Platform, LogService, Logger, TabContextMenuItemProvider, SplitTabComponent, SubscriptionContainer, MenuItemOptions, PlatformService, HostWindowService, ResettableTimeout, TranslateService } from 'tabby-core'
import { BaseSession } from '../session'
import { Frontend } from '../frontends/frontend'
import { XTermFrontend, XTermWebGLFrontend } from '../frontends/xtermFrontend'
import { ResizeEvent } from './interfaces'
import { TerminalDecorator } from './decorator'
import { SearchPanelComponent } from '../components/searchPanel.component'
/**
* A class to base your custom terminal tabs on
*/
export class BaseTerminalTabComponent extends BaseTabComponent implements OnInit, OnDestroy {
static template: string = require<string>('../components/baseTerminalTab.component.pug')
static styles: string[] = [require<string>('../components/baseTerminalTab.component.scss')]
static animations: AnimationTriggerMetadata[] = [
trigger('toolbarSlide', [
transition(':enter', [
style({
transform: 'translateY(-25%)',
opacity: '0',
}),
animate('100ms ease-out', style({
transform: 'translateY(0%)',
opacity: '1',
})),
]),
transition(':leave', [
animate('100ms ease-out', style({
transform: 'translateY(-25%)',
opacity: '0',
})),
]),
]),
trigger('panelSlide', [
transition(':enter', [
style({
transform: 'translateY(25%)',
opacity: '0',
}),
animate('100ms ease-out', style({
transform: 'translateY(0%)',
opacity: '1',
})),
]),
transition(':leave', [
animate('100ms ease-out', style({
transform: 'translateY(25%)',
opacity: '0',
})),
]),
]),
]
session: BaseSession|null = null
savedState?: any
savedStateIsLive = false
@Input() zoom = 0
@Input() showSearchPanel = false
/** @hidden */
@ViewChild('content') content
/** @hidden */
@HostBinding('style.background-color') backgroundColor: string|null = null
/** @hidden */
@HostBinding('class.toolbar-enabled') enableToolbar = false
/** @hidden */
@HostBinding('class.toolbar-pinned') pinToolbar = false
/** @hidden */
@HostBinding('class.toolbar-revealed') revealToolbar = false
frontend?: Frontend
/** @hidden */
frontendIsReady = false
frontendReady = new Subject<void>()
size: ResizeEvent
/**
* Enables normall passthrough from session output to terminal input
*/
enablePassthrough = true
/**
* Disables display of dynamic window/tab title provided by the shell
*/
disableDynamicTitle = false
alternateScreenActive = false
@ViewChild(SearchPanelComponent, { 'static': false }) searchPanel?: SearchPanelComponent
// Deps start
config: ConfigService
element: ElementRef
protected zone: NgZone
protected app: AppService
protected hostApp: HostAppService
protected hotkeys: HotkeysService
protected platform: PlatformService
protected notifications: NotificationsService
protected log: LogService
protected decorators: TerminalDecorator[] = []
protected contextMenuProviders: TabContextMenuItemProvider[]
protected hostWindow: HostWindowService
protected translate: TranslateService
// Deps end
protected logger: Logger
protected output = new Subject<string>()
protected sessionChanged = new Subject<BaseSession|null>()
private bellPlayer: HTMLAudioElement
private termContainerSubscriptions = new SubscriptionContainer()
private allFocusModeSubscription: Subscription|null = null
private sessionHandlers = new SubscriptionContainer()
private spinner = new Spinner({
stream: {
write: x => {
try {
this.writeRaw(x)
} catch {
this.spinner.stop()
}
},
},
})
private spinnerActive = false
private spinnerPaused = false
private toolbarRevealTimeout = new ResettableTimeout(() => {
this.revealToolbar = false
}, 1000)
private frontendWriteLock = Promise.resolve()
get input$ (): Observable<Buffer> {
if (!this.frontend) {
throw new Error('Frontend not ready')
}
return this.frontend.input$
}
get output$ (): Observable<string> { return this.output }
get resize$ (): Observable<ResizeEvent> {
if (!this.frontend) {
throw new Error('Frontend not ready')
}
return this.frontend.resize$
}
get alternateScreenActive$ (): Observable<boolean> {
if (!this.frontend) {
throw new Error('Frontend not ready')
}
return this.frontend.alternateScreenActive$
}
get frontendReady$ (): Observable<void> { return this.frontendReady }
get sessionChanged$ (): Observable<BaseSession|null> { return this.sessionChanged }
constructor (protected injector: Injector) {
super()
this.config = injector.get(ConfigService)
this.element = injector.get(ElementRef)
this.zone = injector.get(NgZone)
this.app = injector.get(AppService)
this.hostApp = injector.get(HostAppService)
this.hotkeys = injector.get(HotkeysService)
this.platform = injector.get(PlatformService)
this.notifications = injector.get(NotificationsService)
this.log = injector.get(LogService)
this.decorators = injector.get<any>(TerminalDecorator, null, InjectFlags.Optional) as TerminalDecorator[]
this.contextMenuProviders = injector.get<any>(TabContextMenuItemProvider, null, InjectFlags.Optional) as TabContextMenuItemProvider[]
this.hostWindow = injector.get(HostWindowService)
this.translate = injector.get(TranslateService)
this.logger = this.log.create('baseTerminalTab')
this.setTitle(this.translate.instant('Terminal'))
this.subscribeUntilDestroyed(this.hotkeys.hotkey$, async hotkey => {
if (!this.hasFocus) {
return
}
switch (hotkey) {
case 'ctrl-c':
if (this.frontend?.getSelection()) {
this.frontend.copySelection()
this.frontend.clearSelection()
this.notifications.notice(this.translate.instant('Copied'))
} else {
this.forEachFocusedTerminalPane(tab => tab.sendInput('\x03'))
}
break
case 'copy':
this.frontend?.copySelection()
this.frontend?.clearSelection()
this.notifications.notice(this.translate.instant('Copied'))
break
case 'paste':
this.forEachFocusedTerminalPane(tab => tab.paste())
break
case 'select-all':
this.frontend?.selectAll()
break
case 'clear':
this.forEachFocusedTerminalPane(tab => tab.frontend?.clear())
break
case 'zoom-in':
this.forEachFocusedTerminalPane(tab => tab.zoomIn())
break
case 'zoom-out':
this.forEachFocusedTerminalPane(tab => tab.zoomOut())
break
case 'reset-zoom':
this.forEachFocusedTerminalPane(tab => tab.resetZoom())
break
case 'previous-word':
this.forEachFocusedTerminalPane(tab => {
tab.sendInput({
[Platform.Windows]: '\x1b[1;5D',
[Platform.macOS]: '\x1bb',
[Platform.Linux]: '\x1bb',
}[this.hostApp.platform])
})
break
case 'next-word':
this.forEachFocusedTerminalPane(tab => {
tab.sendInput({
[Platform.Windows]: '\x1b[1;5C',
[Platform.macOS]: '\x1bf',
[Platform.Linux]: '\x1bf',
}[this.hostApp.platform])
})
break
case 'delete-line':
this.forEachFocusedTerminalPane(tab => {
tab.sendInput('\x1bw')
})
break
case 'delete-previous-word':
this.forEachFocusedTerminalPane(tab => {
tab.sendInput('\x1b\x7f')
})
break
case 'delete-next-word':
this.forEachFocusedTerminalPane(tab => {
tab.sendInput({
[Platform.Windows]: '\x1bd\x1b[3;5~',
[Platform.macOS]: '\x1bd',
[Platform.Linux]: '\x1bd',
}[this.hostApp.platform])
})
break
case 'search':
this.showSearchPanel = true
setImmediate(() => {
const input = this.element.nativeElement.querySelector('.search-input')
input?.focus()
input?.select()
})
break
case 'pane-focus-all':
this.focusAllPanes()
break
case 'copy-current-path':
this.copyCurrentPath()
break
case 'scroll-to-top':
this.frontend?.scrollToTop()
break
case 'scroll-up':
this.frontend?.scrollPages(-1)
break
case 'scroll-down':
this.frontend?.scrollPages(1)
break
case 'scroll-to-bottom':
this.frontend?.scrollToBottom()
break
}
})
this.bellPlayer = document.createElement('audio')
this.bellPlayer.src = require('../bell.ogg').default
this.contextMenuProviders.sort((a, b) => a.weight - b.weight)
}
/** @hidden */
ngOnInit (): void {
this.pinToolbar = this.enableToolbar && (window.localStorage.pinTerminalToolbar ?? 'true') === 'true'
this.focused$.subscribe(() => {
this.configure()
this.frontend?.focus()
})
const cls: new (..._) => Frontend = {
xterm: XTermFrontend,
'xterm-webgl': XTermWebGLFrontend,
}[this.config.store.terminal.frontend] ?? XTermFrontend
this.frontend = new cls(this.injector)
this.frontendReady$.pipe(first()).subscribe(() => {
this.onFrontendReady()
})
this.frontend.resize$.pipe(first()).subscribe(async ({ columns, rows }) => {
this.size = { columns, rows }
this.frontendReady.next()
this.frontendReady.complete()
this.config.enabledServices(this.decorators).forEach(decorator => {
try {
decorator.attach(this)
} catch (e) {
this.logger.warn('Decorator attach() throws', e)
}
})
setTimeout(() => {
this.session?.resize(columns, rows)
}, 1000)
this.session?.releaseInitialDataBuffer()
this.sessionChanged$.subscribe(() => {
this.session?.releaseInitialDataBuffer()
})
})
this.alternateScreenActive$.subscribe(x => {
this.alternateScreenActive = x
})
setImmediate(async () => {
if (this.hasFocus) {
await this.frontend?.attach(this.content.nativeElement)
this.frontend?.configure()
} else {
this.focused$.pipe(first()).subscribe(async () => {
await this.frontend?.attach(this.content.nativeElement)
this.frontend?.configure()
})
}
})
this.attachTermContainerHandlers()
this.configure()
setTimeout(() => {
this.output.subscribe(() => {
this.displayActivity()
})
}, 1000)
this.frontend.bell$.subscribe(() => {
if (this.config.store.terminal.bell === 'visual') {
this.frontend?.visualBell()
}
if (this.config.store.terminal.bell === 'audible') {
this.bellPlayer.play()
}
})
this.frontend.focus()
this.blurred$.subscribe(() => {
this.cancelFocusAllPanes()
})
}
protected onFrontendReady (): void {
this.frontendIsReady = true
if (this.savedState) {
this.frontend!.restoreState(this.savedState)
if (!this.savedStateIsLive) {
this.frontend!.write('\r\n\r\n')
this.frontend!.write(colors.bgWhite.black(' * ') + colors.bgBlackBright.white(' History restored '))
this.frontend!.write('\r\n\r\n')
}
}
}
async buildContextMenu (): Promise<MenuItemOptions[]> {
let items: MenuItemOptions[] = []
for (const section of await Promise.all(this.contextMenuProviders.map(x => x.getItems(this)))) {
items = items.concat(section)
items.push({ type: 'separator' })
}
items.splice(items.length - 1, 1)
return items
}
/**
* Feeds input into the active session
*/
sendInput (data: string|Buffer): void {
if (!(data instanceof Buffer)) {
data = Buffer.from(data, 'utf-8')
}
this.session?.feedFromTerminal(data)
if (this.config.store.terminal.scrollOnInput) {
this.frontend?.scrollToBottom()
}
}
/**
* Feeds input into the terminal frontend
*/
async write (data: string): Promise<void> {
this.frontendWriteLock = this.frontendWriteLock.then(() =>
this.withSpinnerPaused(() => this.writeRaw(data)))
await this.frontendWriteLock
}
protected async writeRaw (data: string): Promise<void> {
if (!this.frontend) {
throw new Error('Frontend not ready')
}
if (this.config.store.terminal.detectProgress) {
const percentageMatch = /(^|[^\d])(\d+(\.\d+)?)%([^\d]|$)/.exec(data)
if (!this.alternateScreenActive && percentageMatch) {
const percentage = percentageMatch[3] ? parseFloat(percentageMatch[2]) : parseInt(percentageMatch[2])
if (percentage > 0 && percentage <= 100) {
this.setProgress(percentage)
}
} else {
this.setProgress(null)
}
}
await this.frontend.write(data)
}
async paste (): Promise<void> {
let data = this.platform.readClipboard()
if (this.hostApp.platform === Platform.Windows) {
data = data.replaceAll('\r\n', '\r')
} else {
data = data.replaceAll('\n', '\r')
}
if (data.indexOf('\n') === data.length - 1) {
// Ends with a newline and has no other line breaks
data = data.substring(0, data.length - 1)
}
if (!this.alternateScreenActive) {
if (data.includes('\r') && this.config.store.terminal.warnOnMultilinePaste) {
const buttons = [
this.translate.instant('Paste'),
this.translate.instant('Cancel'),
]
const result = (await this.platform.showMessageBox(
{
type: 'warning',
detail: data.slice(0, 1000),
message: this.translate.instant('Paste multiple lines?'),
buttons,
defaultId: 0,
cancelId: 1,
}
)).response
if (result === 1) {
return
}
} else {
data = data.trim()
}
}
if (this.config.store.terminal.bracketedPaste && this.frontend?.supportsBracketedPaste()) {
data = `\x1b[200~${data}\x1b[201~`
}
this.sendInput(data)
}
/**
* Applies the user settings to the terminal
*/
configure (): void {
this.frontend?.configure()
if (this.config.store.terminal.background === 'colorScheme') {
if (this.config.store.terminal.colorScheme.background) {
this.backgroundColor = this.config.store.terminal.colorScheme.background
}
} else {
this.backgroundColor = null
}
}
zoomIn (): void {
this.zoom++
this.frontend?.setZoom(this.zoom)
}
zoomOut (): void {
this.zoom--
this.frontend?.setZoom(this.zoom)
}
resetZoom (): void {
this.zoom = 0
this.frontend?.setZoom(this.zoom)
}
focusAllPanes (): void {
if (this.allFocusModeSubscription) {
return
}
if (this.parent instanceof SplitTabComponent) {
const parent = this.parent
parent._allFocusMode = true
parent.layout()
this.allFocusModeSubscription = this.frontend?.input$.subscribe(data => {
for (const tab of parent.getAllTabs()) {
if (tab !== this && tab instanceof BaseTerminalTabComponent) {
tab.sendInput(data)
}
}
}) ?? null
}
}
cancelFocusAllPanes (): void {
if (!this.allFocusModeSubscription) {
return
}
if (this.parent instanceof SplitTabComponent) {
this.allFocusModeSubscription.unsubscribe()
this.allFocusModeSubscription = null
this.parent._allFocusMode = false
this.parent.layout()
}
}
async copyCurrentPath (): Promise<void> {
let cwd: string|null = null
if (this.session?.supportsWorkingDirectory()) {
cwd = await this.session.getWorkingDirectory()
}
if (cwd) {
this.platform.setClipboard({ text: cwd })
this.notifications.notice(this.translate.instant('Copied'))
} else {
this.notifications.error(this.translate.instant('Shell does not support current path detection'))
}
}
/** @hidden */
ngOnDestroy (): void {
super.ngOnDestroy()
}
async destroy (): Promise<void> {
this.frontend?.detach(this.content.nativeElement)
this.frontend?.destroy()
this.frontend = undefined
this.content.nativeElement.remove()
this.detachTermContainerHandlers()
this.config.enabledServices(this.decorators).forEach(decorator => {
try {
decorator.detach(this)
} catch (e) {
this.logger.warn('Decorator attach() throws', e)
}
})
this.output.complete()
this.frontendReady.complete()
super.destroy()
if (this.session?.open) {
await this.session.destroy()
}
}
protected detachTermContainerHandlers (): void {
this.termContainerSubscriptions.cancelAll()
}
private rightMouseDownTime = 0
protected async handleRightMouseDown (event: MouseEvent): Promise<void> {
event.preventDefault()
event.stopPropagation()
this.rightMouseDownTime = Date.now()
if (this.config.store.terminal.rightClick === 'menu') {
this.platform.popupContextMenu(await this.buildContextMenu(), event)
}
}
protected async handleRightMouseUp (event: MouseEvent): Promise<void> {
event.preventDefault()
event.stopPropagation()
if (this.config.store.terminal.rightClick === 'paste') {
const duration = Date.now() - this.rightMouseDownTime
if (duration < 250) {
this.paste()
} else {
this.platform.popupContextMenu(await this.buildContextMenu(), event)
}
}
}
protected attachTermContainerHandlers (): void {
this.detachTermContainerHandlers()
if (!this.frontend) {
throw new Error('Frontend not ready')
}
const maybeConfigure = () => {
if (this.hasFocus) {
setTimeout(() => this.configure(), 250)
}
}
this.termContainerSubscriptions.subscribe(this.frontend.title$, title => this.zone.run(() => {
if (!this.disableDynamicTitle) {
this.setTitle(title)
}
}))
this.termContainerSubscriptions.subscribe(this.focused$, () => this.frontend && (this.frontend.enableResizing = true))
this.termContainerSubscriptions.subscribe(this.blurred$, () => this.frontend && (this.frontend.enableResizing = false))
this.termContainerSubscriptions.subscribe(this.frontend.mouseEvent$, event => {
if (event.type === 'mousedown') {
if (event.which === 1) {
this.cancelFocusAllPanes()
}
if (event.which === 2) {
if (this.config.store.terminal.pasteOnMiddleClick) {
this.paste()
}
event.preventDefault()
event.stopPropagation()
return
}
if (event.which === 3 || event.which === 1 && event.ctrlKey) {
this.handleRightMouseDown(event)
return
}
}
if (event.type === 'mouseup') {
if (event.which === 3 || event.which === 1 && event.ctrlKey) {
this.handleRightMouseUp(event)
return
}
}
if (event.type === 'mousewheel') {
let wheelDeltaY = 0
if ('wheelDeltaY' in event) {
wheelDeltaY = (event as WheelEvent)['wheelDeltaY']
} else {
wheelDeltaY = (event as WheelEvent).deltaY
}
if (event.altKey) {
event.preventDefault()
const delta = Math.round(wheelDeltaY / 50)
this.sendInput((delta > 0 ? '\u001bOA' : '\u001bOB').repeat(Math.abs(delta)))
}
}
})
this.termContainerSubscriptions.subscribe(this.frontend.input$, data => {
this.sendInput(data)
})
this.termContainerSubscriptions.subscribe(this.frontend.resize$.pipe(auditTime(100)), ({ columns, rows }) => {
this.logger.debug(`Resizing to ${columns}x${rows}`)
this.size = { columns, rows }
this.zone.run(() => {
if (this.session?.open) {
this.session.resize(columns, rows)
}
})
})
this.termContainerSubscriptions.subscribe(this.platform.displayMetricsChanged$, maybeConfigure)
this.termContainerSubscriptions.subscribe(this.hostWindow.windowMoved$, maybeConfigure)
}
setSession (session: BaseSession|null, destroyOnSessionClose = false): void {
if (session) {
if (this.session) {
this.setSession(null)
}
this.detachSessionHandlers()
this.session = session
this.attachSessionHandlers(destroyOnSessionClose)
} else {
this.detachSessionHandlers()
this.session = null
}
this.sessionChanged.next(session)
}
showToolbar (): void {
this.revealToolbar = true
this.toolbarRevealTimeout.clear()
}
hideToolbar (): void {
this.toolbarRevealTimeout.set()
}
togglePinToolbar (): void {
this.pinToolbar = !this.pinToolbar
window.localStorage.pinTerminalToolbar = this.pinToolbar
}
@HostBinding('class.with-title-inset') get hasTitleInset (): boolean {
return this.hostApp.platform === Platform.macOS && this.config.store.appearance.tabsLocation !== 'top' && this.config.store.appearance.frame === 'thin'
}
protected attachSessionHandler <T> (observable: Observable<T>, handler: (v: T) => void): void {
this.sessionHandlers.subscribe(observable, handler)
}
protected attachSessionHandlers (destroyOnSessionClose = false): void {
if (!this.session) {
throw new Error('Session not set')
}
// this.session.output$.bufferTime(10).subscribe((datas) => {
this.attachSessionHandler(this.session.output$, data => {
if (this.enablePassthrough) {
this.output.next(data)
this.write(data)
}
})
if (destroyOnSessionClose) {
this.attachSessionHandler(this.session.closed$, () => {
this.destroy()
})
}
this.attachSessionHandler(this.session.destroyed$, () => {
this.setSession(null)
})
this.attachSessionHandler(this.session.oscProcessor.copyRequested$, content => {
this.platform.setClipboard({ text: content })
this.notifications.notice(this.translate.instant('Copied'))
})
}
protected detachSessionHandlers (): void {
this.sessionHandlers.cancelAll()
}
protected startSpinner (text?: string): void {
if (this.spinnerActive || this.spinnerPaused) {
return
}
if (text) {
this.spinner.text = text
}
this.spinner.setSpinnerString(6)
this.spinnerActive = true
this.zone.runOutsideAngular(() => {
this.spinner.start()
})
}
protected stopSpinner (): void {
if (!this.spinnerActive) {
return
}
this.spinner.stop(true)
this.spinnerActive = false
}
protected async withSpinnerPaused (work: () => any): Promise<void> {
this.spinnerPaused = true
if (this.spinnerActive) {
this.spinner.stop(true)
}
try {
await work()
} finally {
this.spinnerPaused = false
if (this.spinnerActive) {
this.zone.runOutsideAngular(() => {
this.spinner.start()
})
}
}
}
protected forEachFocusedTerminalPane (cb: (tab: BaseTerminalTabComponent) => void): void {
if (this.parent && this.parent instanceof SplitTabComponent && this.parent._allFocusMode) {
for (const tab of this.parent.getAllTabs()) {
if (tab instanceof BaseTerminalTabComponent) {
cb(tab)
}
}
} else {
cb(this)
}
}
}