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terminalInstance.ts
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terminalInstance.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as path from 'vs/base/common/path';
import * as dom from 'vs/base/browser/dom';
import { StandardKeyboardEvent } from 'vs/base/browser/keyboardEvent';
import { debounce } from 'vs/base/common/decorators';
import { Emitter, Event } from 'vs/base/common/event';
import { KeyCode } from 'vs/base/common/keyCodes';
import { IDisposable, dispose, Disposable, toDisposable } from 'vs/base/common/lifecycle';
import { TabFocus } from 'vs/editor/common/config/commonEditorConfig';
import * as nls from 'vs/nls';
import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
import { ConfigurationTarget, IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { IContextKey, IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
import { ILogService } from 'vs/platform/log/common/log';
import { INotificationService, IPromptChoice, NeverShowAgainScope, Severity } from 'vs/platform/notification/common/notification';
import { IStorageService, StorageScope, StorageTarget } from 'vs/platform/storage/common/storage';
import { activeContrastBorder, editorBackground, scrollbarSliderActiveBackground, scrollbarSliderBackground, scrollbarSliderHoverBackground } from 'vs/platform/theme/common/colorRegistry';
import { ICssStyleCollector, IColorTheme, IThemeService, registerThemingParticipant } from 'vs/platform/theme/common/themeService';
import { PANEL_BACKGROUND, SIDE_BAR_BACKGROUND } from 'vs/workbench/common/theme';
import { TerminalWidgetManager } from 'vs/workbench/contrib/terminal/browser/widgets/widgetManager';
import { ITerminalProcessManager, ProcessState, TERMINAL_VIEW_ID, INavigationMode, DEFAULT_COMMANDS_TO_SKIP_SHELL, TERMINAL_CREATION_COMMANDS, ITerminalProfileResolverService, TerminalCommandId } from 'vs/workbench/contrib/terminal/common/terminal';
import { ansiColorIdentifiers, TERMINAL_BACKGROUND_COLOR, TERMINAL_CURSOR_BACKGROUND_COLOR, TERMINAL_CURSOR_FOREGROUND_COLOR, TERMINAL_FOREGROUND_COLOR, TERMINAL_SELECTION_BACKGROUND_COLOR } from 'vs/workbench/contrib/terminal/common/terminalColorRegistry';
import { TerminalConfigHelper } from 'vs/workbench/contrib/terminal/browser/terminalConfigHelper';
import { TerminalLinkManager } from 'vs/workbench/contrib/terminal/browser/links/terminalLinkManager';
import { IAccessibilityService } from 'vs/platform/accessibility/common/accessibility';
import { ITerminalInstanceService, ITerminalInstance, ITerminalExternalLinkProvider, IRequestAddInstanceToGroupEvent } from 'vs/workbench/contrib/terminal/browser/terminal';
import { TerminalProcessManager } from 'vs/workbench/contrib/terminal/browser/terminalProcessManager';
import type { Terminal as XTermTerminal, IBuffer, ITerminalAddon, RendererType, ITheme } from 'xterm';
import type { SearchAddon, ISearchOptions } from 'xterm-addon-search';
import type { Unicode11Addon } from 'xterm-addon-unicode11';
import type { WebglAddon } from 'xterm-addon-webgl';
import { CommandTrackerAddon } from 'vs/workbench/contrib/terminal/browser/addons/commandTrackerAddon';
import { NavigationModeAddon } from 'vs/workbench/contrib/terminal/browser/addons/navigationModeAddon';
import { XTermCore } from 'vs/workbench/contrib/terminal/browser/xterm-private';
import { IEditorOptions } from 'vs/editor/common/config/editorOptions';
import { IViewsService, IViewDescriptorService, ViewContainerLocation } from 'vs/workbench/common/views';
import { EnvironmentVariableInfoWidget } from 'vs/workbench/contrib/terminal/browser/widgets/environmentVariableInfoWidget';
import { TerminalLaunchHelpAction } from 'vs/workbench/contrib/terminal/browser/terminalActions';
import { TypeAheadAddon } from 'vs/workbench/contrib/terminal/browser/terminalTypeAheadAddon';
import { BrowserFeatures } from 'vs/base/browser/canIUse';
import { IPreferencesService } from 'vs/workbench/services/preferences/common/preferences';
import { IEnvironmentVariableInfo } from 'vs/workbench/contrib/terminal/common/environmentVariable';
import { IProcessDataEvent, IShellLaunchConfig, ITerminalDimensionsOverride, ITerminalLaunchError, TerminalShellType, TerminalSettingId, TitleEventSource, TerminalIcon, TerminalSettingPrefix, ITerminalProfileObject, TerminalLocation, ProcessPropertyType, ProcessCapability, IProcessPropertyMap } from 'vs/platform/terminal/common/terminal';
import { IProductService } from 'vs/platform/product/common/productService';
import { formatMessageForTerminal } from 'vs/workbench/contrib/terminal/common/terminalStrings';
import { AutoOpenBarrier, Promises } from 'vs/base/common/async';
import { Codicon, iconRegistry } from 'vs/base/common/codicons';
import { ITerminalStatusList, TerminalStatus, TerminalStatusList } from 'vs/workbench/contrib/terminal/browser/terminalStatusList';
import { IQuickInputService, IQuickPickItem, IQuickPickSeparator } from 'vs/platform/quickinput/common/quickInput';
import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/common/environmentService';
import { isMacintosh, isWindows, OperatingSystem, OS } from 'vs/base/common/platform';
import { URI } from 'vs/base/common/uri';
import { DataTransfers } from 'vs/base/browser/dnd';
import { CodeDataTransfers, containsDragType, DragAndDropObserver, IDragAndDropObserverCallbacks } from 'vs/workbench/browser/dnd';
import { getColorClass, getColorStyleElement, getStandardColors } from 'vs/workbench/contrib/terminal/browser/terminalIcon';
import { IWorkbenchLayoutService, Position } from 'vs/workbench/services/layout/browser/layoutService';
import { Orientation } from 'vs/base/browser/ui/sash/sash';
import { Color } from 'vs/base/common/color';
import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace';
import { TerminalStorageKeys } from 'vs/workbench/contrib/terminal/common/terminalStorageKeys';
import { TerminalContextKeys } from 'vs/workbench/contrib/terminal/common/terminalContextKey';
import { getTerminalResourcesFromDragEvent, getTerminalUri } from 'vs/workbench/contrib/terminal/browser/terminalUri';
import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
import { TerminalEditorInput } from 'vs/workbench/contrib/terminal/browser/terminalEditorInput';
import { isSafari } from 'vs/base/browser/browser';
import { ISeparator, template } from 'vs/base/common/labels';
import { IPathService } from 'vs/workbench/services/path/common/pathService';
import { DomScrollableElement } from 'vs/base/browser/ui/scrollbar/scrollableElement';
import { ScrollbarVisibility } from 'vs/base/common/scrollable';
// How long in milliseconds should an average frame take to render for a notification to appear
// which suggests the fallback DOM-based renderer
const SLOW_CANVAS_RENDER_THRESHOLD = 50;
const NUMBER_OF_FRAMES_TO_MEASURE = 20;
const SHOULD_PROMPT_FOR_PROFILE_MIGRATION_KEY = 'terminals.integrated.profile-migration';
let migrationMessageShown = false;
const enum Constants {
/**
* The maximum amount of milliseconds to wait for a container before starting to create the
* terminal process. This period helps ensure the terminal has good initial dimensions to work
* with if it's going to be a foreground terminal.
*/
WaitForContainerThreshold = 100,
DefaultCols = 80,
DefaultRows = 30,
MaxSupportedCols = 5000,
MaxCanvasWidth = 8000
}
let xtermConstructor: Promise<typeof XTermTerminal> | undefined;
interface ICanvasDimensions {
width: number;
height: number;
}
interface IGridDimensions {
cols: number;
rows: number;
}
const scrollbarHeight = 5;
export class TerminalInstance extends Disposable implements ITerminalInstance {
private static _lastKnownCanvasDimensions: ICanvasDimensions | undefined;
private static _lastKnownGridDimensions: IGridDimensions | undefined;
private static _instanceIdCounter = 1;
private static _suggestedRendererType: 'canvas' | 'dom' | undefined = undefined;
private _processManager!: ITerminalProcessManager;
private _pressAnyKeyToCloseListener: IDisposable | undefined;
private _instanceId: number;
private _latestXtermWriteData: number = 0;
private _latestXtermParseData: number = 0;
private _isExiting: boolean;
private _hadFocusOnExit: boolean;
private _isVisible: boolean;
private _isDisposed: boolean;
private _exitCode: number | undefined;
private _skipTerminalCommands: string[];
private _shellType: TerminalShellType;
private _title: string = '';
private _titleSource: TitleEventSource = TitleEventSource.Process;
private _container: HTMLElement | undefined;
private _wrapperElement: (HTMLElement & { xterm?: XTermTerminal }) | undefined;
private _xterm: XTermTerminal | undefined;
private _xtermCore: XTermCore | undefined;
private _xtermTypeAhead: TypeAheadAddon | undefined;
private _xtermSearch: SearchAddon | undefined;
private _xtermUnicode11: Unicode11Addon | undefined;
private _xtermElement: HTMLDivElement | undefined;
private _horizontalScrollbar: DomScrollableElement | undefined;
private _terminalHasTextContextKey: IContextKey<boolean>;
private _terminalA11yTreeFocusContextKey: IContextKey<boolean>;
private _cols: number = 0;
private _rows: number = 0;
private _fixedCols: number | undefined;
private _fixedRows: number | undefined;
private _cwd: string | undefined = undefined;
private _initialCwd: string | undefined = undefined;
private _dimensionsOverride: ITerminalDimensionsOverride | undefined;
private _xtermReadyPromise: Promise<XTermTerminal>;
private _titleReadyPromise: Promise<string>;
private _titleReadyComplete: ((title: string) => any) | undefined;
private _areLinksReady: boolean = false;
private _initialDataEvents: string[] | undefined = [];
private _containerReadyBarrier: AutoOpenBarrier;
private _attachBarrier: AutoOpenBarrier;
private _messageTitleDisposable: IDisposable | undefined;
private _widgetManager: TerminalWidgetManager = this._instantiationService.createInstance(TerminalWidgetManager);
private _linkManager: TerminalLinkManager | undefined;
private _environmentInfo: { widget: EnvironmentVariableInfoWidget, disposable: IDisposable } | undefined;
private _webglAddon: WebglAddon | undefined;
private _commandTrackerAddon: CommandTrackerAddon | undefined;
private _navigationModeAddon: INavigationMode & ITerminalAddon | undefined;
private _dndObserver: IDisposable | undefined;
private readonly _resource: URI;
private _lastLayoutDimensions: dom.Dimension | undefined;
private _hasHadInput: boolean;
readonly statusList: ITerminalStatusList;
disableLayout: boolean = false;
private _capabilities: ProcessCapability[] = [];
private _description?: string;
private _processName: string = '';
private _sequence?: string;
private _staticTitle?: string;
private _workspaceFolder?: string;
private _labelComputer?: TerminalLabelComputer;
private _userHome?: string;
private _hasScrollBar?: boolean;
target?: TerminalLocation;
get instanceId(): number { return this._instanceId; }
get resource(): URI { return this._resource; }
get cols(): number {
if (this._fixedCols !== undefined) {
return this._fixedCols;
}
if (this._dimensionsOverride && this._dimensionsOverride.cols) {
if (this._dimensionsOverride.forceExactSize) {
return this._dimensionsOverride.cols;
}
return Math.min(Math.max(this._dimensionsOverride.cols, 2), this._cols);
}
return this._cols;
}
get rows(): number {
if (this._fixedRows !== undefined) {
return this._fixedRows;
}
if (this._dimensionsOverride && this._dimensionsOverride.rows) {
if (this._dimensionsOverride.forceExactSize) {
return this._dimensionsOverride.rows;
}
return Math.min(Math.max(this._dimensionsOverride.rows, 2), this._rows);
}
return this._rows;
}
get fixedCols(): number | undefined { return this._fixedCols; }
get fixedRows(): number | undefined { return this._fixedRows; }
get maxCols(): number { return this._cols; }
get maxRows(): number { return this._rows; }
// TODO: Ideally processId would be merged into processReady
get processId(): number | undefined { return this._processManager.shellProcessId; }
// TODO: How does this work with detached processes?
// TODO: Should this be an event as it can fire twice?
get processReady(): Promise<void> { return this._processManager.ptyProcessReady; }
get hasChildProcesses(): boolean { return this.shellLaunchConfig.attachPersistentProcess?.hasChildProcesses || this._processManager.hasChildProcesses; }
get areLinksReady(): boolean { return this._areLinksReady; }
get initialDataEvents(): string[] | undefined { return this._initialDataEvents; }
get exitCode(): number | undefined { return this._exitCode; }
get hadFocusOnExit(): boolean { return this._hadFocusOnExit; }
get isTitleSetByProcess(): boolean { return !!this._messageTitleDisposable; }
get shellLaunchConfig(): IShellLaunchConfig { return this._shellLaunchConfig; }
get shellType(): TerminalShellType { return this._shellType; }
get commandTracker(): CommandTrackerAddon | undefined { return this._commandTrackerAddon; }
get navigationMode(): INavigationMode | undefined { return this._navigationModeAddon; }
get isDisconnected(): boolean { return this._processManager.isDisconnected; }
get isRemote(): boolean { return this._processManager.remoteAuthority !== undefined; }
get hasFocus(): boolean { return this._wrapperElement?.contains(document.activeElement) ?? false; }
get title(): string { return this._title; }
get titleSource(): TitleEventSource { return this._titleSource; }
get icon(): TerminalIcon | undefined { return this._getIcon(); }
get color(): string | undefined { return this._getColor(); }
get processName(): string { return this._processName; }
get sequence(): string | undefined { return this._sequence; }
get staticTitle(): string | undefined { return this._staticTitle; }
get workspaceFolder(): string | undefined { return this._workspaceFolder; }
get cwd(): string | undefined { return this._cwd; }
get initialCwd(): string | undefined { return this._initialCwd; }
get capabilities(): ProcessCapability[] { return this._capabilities; }
get description(): string | undefined { return this._description || this.shellLaunchConfig.description; }
get userHome(): string | undefined { return this._userHome; }
// The onExit event is special in that it fires and is disposed after the terminal instance
// itself is disposed
private readonly _onExit = new Emitter<number | undefined>();
readonly onExit = this._onExit.event;
private readonly _onDisposed = this._register(new Emitter<ITerminalInstance>());
readonly onDisposed = this._onDisposed.event;
private readonly _onProcessIdReady = this._register(new Emitter<ITerminalInstance>());
readonly onProcessIdReady = this._onProcessIdReady.event;
private readonly _onLinksReady = this._register(new Emitter<ITerminalInstance>());
readonly onLinksReady = this._onLinksReady.event;
private readonly _onTitleChanged = this._register(new Emitter<ITerminalInstance>());
readonly onTitleChanged = this._onTitleChanged.event;
private readonly _onIconChanged = this._register(new Emitter<ITerminalInstance>());
readonly onIconChanged = this._onIconChanged.event;
private readonly _onData = this._register(new Emitter<string>());
readonly onData = this._onData.event;
private readonly _onBinary = this._register(new Emitter<string>());
readonly onBinary = this._onBinary.event;
private readonly _onLineData = this._register(new Emitter<string>());
readonly onLineData = this._onLineData.event;
private readonly _onRequestExtHostProcess = this._register(new Emitter<ITerminalInstance>());
readonly onRequestExtHostProcess = this._onRequestExtHostProcess.event;
private readonly _onDimensionsChanged = this._register(new Emitter<void>());
readonly onDimensionsChanged = this._onDimensionsChanged.event;
private readonly _onMaximumDimensionsChanged = this._register(new Emitter<void>());
readonly onMaximumDimensionsChanged = this._onMaximumDimensionsChanged.event;
private readonly _onDidFocus = this._register(new Emitter<ITerminalInstance>());
readonly onDidFocus = this._onDidFocus.event;
private readonly _onDidBlur = this._register(new Emitter<ITerminalInstance>());
readonly onDidBlur = this._onDidBlur.event;
private readonly _onDidInputData = this._register(new Emitter<ITerminalInstance>());
readonly onDidInputData = this._onDidInputData.event;
private readonly _onRequestAddInstanceToGroup = this._register(new Emitter<IRequestAddInstanceToGroupEvent>());
readonly onRequestAddInstanceToGroup = this._onRequestAddInstanceToGroup.event;
private readonly _onDidChangeHasChildProcesses = this._register(new Emitter<boolean>());
readonly onDidChangeHasChildProcesses = this._onDidChangeHasChildProcesses.event;
constructor(
private readonly _terminalFocusContextKey: IContextKey<boolean>,
private readonly _terminalHasFixedWidth: IContextKey<boolean>,
private readonly _terminalShellTypeContextKey: IContextKey<string>,
private readonly _terminalAltBufferActiveContextKey: IContextKey<boolean>,
private readonly _configHelper: TerminalConfigHelper,
private _shellLaunchConfig: IShellLaunchConfig,
resource: URI | undefined,
@ITerminalInstanceService private readonly _terminalInstanceService: ITerminalInstanceService,
@ITerminalProfileResolverService private readonly _terminalProfileResolverService: ITerminalProfileResolverService,
@IPathService private readonly _pathService: IPathService,
@IContextKeyService private readonly _contextKeyService: IContextKeyService,
@IKeybindingService private readonly _keybindingService: IKeybindingService,
@INotificationService private readonly _notificationService: INotificationService,
@IPreferencesService private readonly _preferencesService: IPreferencesService,
@IViewsService private readonly _viewsService: IViewsService,
@IInstantiationService private readonly _instantiationService: IInstantiationService,
@IClipboardService private readonly _clipboardService: IClipboardService,
@IThemeService private readonly _themeService: IThemeService,
@IConfigurationService private readonly _configurationService: IConfigurationService,
@ILogService private readonly _logService: ILogService,
@IStorageService private readonly _storageService: IStorageService,
@IAccessibilityService private readonly _accessibilityService: IAccessibilityService,
@IViewDescriptorService private readonly _viewDescriptorService: IViewDescriptorService,
@IProductService private readonly _productService: IProductService,
@IQuickInputService private readonly _quickInputService: IQuickInputService,
@IWorkbenchEnvironmentService workbenchEnvironmentService: IWorkbenchEnvironmentService,
@IWorkspaceContextService private readonly _workspaceContextService: IWorkspaceContextService,
@IEditorService private readonly _editorService: IEditorService
) {
super();
this._skipTerminalCommands = [];
this._isExiting = false;
this._hadFocusOnExit = false;
this._isVisible = false;
this._isDisposed = false;
this._instanceId = TerminalInstance._instanceIdCounter++;
this._hasHadInput = false;
this._titleReadyPromise = new Promise<string>(c => {
this._titleReadyComplete = c;
});
this._fixedRows = _shellLaunchConfig.attachPersistentProcess?.fixedDimensions?.rows;
this._fixedCols = _shellLaunchConfig.attachPersistentProcess?.fixedDimensions?.cols;
// the resource is already set when it's been moved from another window
this._resource = resource || getTerminalUri(this._workspaceContextService.getWorkspace().id, this.instanceId, this.title);
this._terminalHasTextContextKey = TerminalContextKeys.textSelected.bindTo(this._contextKeyService);
this._terminalA11yTreeFocusContextKey = TerminalContextKeys.a11yTreeFocus.bindTo(this._contextKeyService);
this._terminalAltBufferActiveContextKey = TerminalContextKeys.altBufferActive.bindTo(this._contextKeyService);
this._logService.trace(`terminalInstance#ctor (instanceId: ${this.instanceId})`, this._shellLaunchConfig);
// Resolve just the icon ahead of time so that it shows up immediately in the tabs. This is
// disabled in remote because this needs to be sync and the OS may differ on the remote
// which would result in the wrong profile being selected and the wrong icon being
// permanently attached to the terminal.
if (!this.shellLaunchConfig.executable && !workbenchEnvironmentService.remoteAuthority) {
this._terminalProfileResolverService.resolveIcon(this._shellLaunchConfig, OS);
}
// When a custom pty is used set the name immediately so it gets passed over to the exthost
// and is available when Pseudoterminal.open fires.
if (this.shellLaunchConfig.customPtyImplementation) {
this.refreshTabLabels(this._shellLaunchConfig.name, TitleEventSource.Api);
}
this.statusList = this._instantiationService.createInstance(TerminalStatusList);
this._initDimensions();
this._createProcessManager();
this._register(toDisposable(() => this._dndObserver?.dispose()));
this._containerReadyBarrier = new AutoOpenBarrier(Constants.WaitForContainerThreshold);
this._attachBarrier = new AutoOpenBarrier(1000);
this._xtermReadyPromise = this._createXterm();
this._xtermReadyPromise.then(async () => {
// Wait for a period to allow a container to be ready
await this._containerReadyBarrier.wait();
await this._createProcess();
// Re-establish the title after reconnect
if (this.shellLaunchConfig.attachPersistentProcess) {
this.refreshTabLabels(this.shellLaunchConfig.attachPersistentProcess.title, this.shellLaunchConfig.attachPersistentProcess.titleSource);
}
if (this._fixedCols) {
await this._addScrollbar();
}
});
this.addDisposable(this._configurationService.onDidChangeConfiguration(async e => {
if (e.affectsConfiguration(TerminalSettingId.GpuAcceleration)) {
TerminalInstance._suggestedRendererType = undefined;
}
if (e.affectsConfiguration('terminal.integrated') || e.affectsConfiguration('editor.fastScrollSensitivity') || e.affectsConfiguration('editor.mouseWheelScrollSensitivity') || e.affectsConfiguration('editor.multiCursorModifier')) {
this.updateConfig();
this.setVisible(this._isVisible);
}
const layoutSettings: string[] = [
TerminalSettingId.FontSize,
TerminalSettingId.FontFamily,
TerminalSettingId.FontWeight,
TerminalSettingId.FontWeightBold,
TerminalSettingId.LetterSpacing,
TerminalSettingId.LineHeight,
'editor.fontFamily'
];
if (layoutSettings.some(id => e.affectsConfiguration(id))) {
await this._resize();
}
if (e.affectsConfiguration(TerminalSettingId.UnicodeVersion)) {
this._updateUnicodeVersion();
}
if (e.affectsConfiguration('editor.accessibilitySupport')) {
this.updateAccessibilitySupport();
}
if (
e.affectsConfiguration(TerminalSettingId.TerminalTitle) ||
e.affectsConfiguration(TerminalSettingId.TerminalTitleSeparator) ||
e.affectsConfiguration(TerminalSettingId.TerminalDescription)) {
this._labelComputer?.refreshLabel();
}
}));
this._workspaceContextService.onDidChangeWorkspaceFolders(() => this._labelComputer?.refreshLabel());
// Clear out initial data events after 10 seconds, hopefully extension hosts are up and
// running at that point.
let initialDataEventsTimeout: number | undefined = window.setTimeout(() => {
initialDataEventsTimeout = undefined;
this._initialDataEvents = undefined;
}, 10000);
this._register(toDisposable(() => {
if (initialDataEventsTimeout) {
window.clearTimeout(initialDataEventsTimeout);
}
}));
this.showProfileMigrationNotification();
}
private _getIcon(): TerminalIcon | undefined {
const icon = this._shellLaunchConfig.icon || this._shellLaunchConfig.attachPersistentProcess?.icon;
if (!icon) {
return this._processManager.processState >= ProcessState.Launching ? Codicon.terminal : undefined;
}
return icon;
}
private _getColor(): string | undefined {
if (this.shellLaunchConfig.color) {
return this.shellLaunchConfig.color;
}
if (this.shellLaunchConfig?.attachPersistentProcess?.color) {
return this.shellLaunchConfig.attachPersistentProcess.color;
}
if (this._processManager.processState >= ProcessState.Launching) {
return undefined;
}
return undefined;
}
addDisposable(disposable: IDisposable): void {
this._register(disposable);
}
async showProfileMigrationNotification(): Promise<void> {
const platform = this._getPlatformKey();
const shouldMigrateToProfile = (!!this._configurationService.getValue(TerminalSettingPrefix.Shell + platform) ||
!!this._configurationService.inspect(TerminalSettingPrefix.ShellArgs + platform).userValue) &&
!!this._configurationService.getValue(TerminalSettingPrefix.DefaultProfile + platform);
if (shouldMigrateToProfile && this._storageService.getBoolean(SHOULD_PROMPT_FOR_PROFILE_MIGRATION_KEY, StorageScope.WORKSPACE, true) && !migrationMessageShown) {
this._notificationService.prompt(
Severity.Info,
nls.localize('terminalProfileMigration', "The terminal is using deprecated shell/shellArgs settings, do you want to migrate it to a profile?"),
[
{
label: nls.localize('migrateToProfile', "Migrate"),
run: async () => {
const shell = this._configurationService.getValue(TerminalSettingPrefix.Shell + platform);
const shellArgs = this._configurationService.getValue(TerminalSettingPrefix.ShellArgs + platform);
const profile = await this._terminalProfileResolverService.createProfileFromShellAndShellArgs(shell, shellArgs);
if (typeof profile === 'string') {
await this._configurationService.updateValue(TerminalSettingPrefix.DefaultProfile + platform, profile);
this._logService.trace(`migrated from shell/shellArgs, using existing profile ${profile}`);
} else {
const profiles = { ...this._configurationService.inspect<Readonly<{ [key: string]: ITerminalProfileObject }>>(TerminalSettingPrefix.Profiles + platform).userValue } || {};
const profileConfig: ITerminalProfileObject = { path: profile.path };
if (profile.args) {
profileConfig.args = profile.args;
}
profiles[profile.profileName] = profileConfig;
await this._configurationService.updateValue(TerminalSettingPrefix.Profiles + platform, profiles);
await this._configurationService.updateValue(TerminalSettingPrefix.DefaultProfile + platform, profile.profileName);
this._logService.trace(`migrated from shell/shellArgs, ${shell} ${shellArgs} to profile ${JSON.stringify(profile)}`);
}
await this._configurationService.updateValue(TerminalSettingPrefix.Shell + platform, undefined);
await this._configurationService.updateValue(TerminalSettingPrefix.ShellArgs + platform, undefined);
}
} as IPromptChoice,
],
{
neverShowAgain: { id: SHOULD_PROMPT_FOR_PROFILE_MIGRATION_KEY, scope: NeverShowAgainScope.WORKSPACE }
}
);
migrationMessageShown = true;
}
}
private _getPlatformKey(): string {
return isWindows ? 'windows' : (isMacintosh ? 'osx' : 'linux');
}
private _initDimensions(): void {
// The terminal panel needs to have been created
if (!this._container) {
return;
}
const computedStyle = window.getComputedStyle(this._wrapperElement!);
const width = parseInt(computedStyle.getPropertyValue('width').replace('px', ''), 10);
const height = parseInt(computedStyle.getPropertyValue('height').replace('px', ''), 10);
this._evaluateColsAndRows(width, height);
}
/**
* Evaluates and sets the cols and rows of the terminal if possible.
* @param width The width of the container.
* @param height The height of the container.
* @return The terminal's width if it requires a layout.
*/
private _evaluateColsAndRows(width: number, height: number): number | null {
// Ignore if dimensions are undefined or 0
if (!width || !height) {
this._setLastKnownColsAndRows();
return null;
}
const dimension = this._getDimension(width, height);
if (!dimension) {
this._setLastKnownColsAndRows();
return null;
}
const font = this._configHelper.getFont(this._xtermCore);
if (!font.charWidth || !font.charHeight) {
this._setLastKnownColsAndRows();
return null;
}
// Because xterm.js converts from CSS pixels to actual pixels through
// the use of canvas, window.devicePixelRatio needs to be used here in
// order to be precise. font.charWidth/charHeight alone as insufficient
// when window.devicePixelRatio changes.
const scaledWidthAvailable = dimension.width * window.devicePixelRatio;
const scaledCharWidth = font.charWidth * window.devicePixelRatio + font.letterSpacing;
const newCols = Math.max(Math.floor(scaledWidthAvailable / scaledCharWidth), 1);
const scaledHeightAvailable = dimension.height * window.devicePixelRatio;
const scaledCharHeight = Math.ceil(font.charHeight * window.devicePixelRatio);
const scaledLineHeight = Math.floor(scaledCharHeight * font.lineHeight);
const newRows = Math.max(Math.floor(scaledHeightAvailable / scaledLineHeight), 1);
if (this._cols !== newCols || this._rows !== newRows) {
this._cols = newCols;
this._rows = newRows;
this._fireMaximumDimensionsChanged();
}
return dimension.width;
}
private _setLastKnownColsAndRows(): void {
if (TerminalInstance._lastKnownGridDimensions) {
this._cols = TerminalInstance._lastKnownGridDimensions.cols;
this._rows = TerminalInstance._lastKnownGridDimensions.rows;
}
}
@debounce(50)
private _fireMaximumDimensionsChanged(): void {
this._onMaximumDimensionsChanged.fire();
}
private _getDimension(width: number, height: number): ICanvasDimensions | undefined {
// The font needs to have been initialized
const font = this._configHelper.getFont(this._xtermCore);
if (!font || !font.charWidth || !font.charHeight) {
return undefined;
}
if (!this._wrapperElement) {
return undefined;
}
TerminalInstance._lastKnownCanvasDimensions = new dom.Dimension(Math.min(Constants.MaxCanvasWidth, width), height - 2 + (this._hasScrollBar && !this._horizontalScrollbar ? -scrollbarHeight : 0)/* bottom padding */);
return TerminalInstance._lastKnownCanvasDimensions;
}
get persistentProcessId(): number | undefined { return this._processManager.persistentProcessId; }
get shouldPersist(): boolean { return this._processManager.shouldPersist; }
private async _getXtermConstructor(): Promise<typeof XTermTerminal> {
if (xtermConstructor) {
return xtermConstructor;
}
xtermConstructor = Promises.withAsyncBody<typeof XTermTerminal>(async (resolve) => {
const Terminal = await this._terminalInstanceService.getXtermConstructor();
// Localize strings
Terminal.strings.promptLabel = nls.localize('terminal.integrated.a11yPromptLabel', 'Terminal input');
Terminal.strings.tooMuchOutput = nls.localize('terminal.integrated.a11yTooMuchOutput', 'Too much output to announce, navigate to rows manually to read');
resolve(Terminal);
});
return xtermConstructor;
}
/**
* Create xterm.js instance and attach data listeners.
*/
protected async _createXterm(): Promise<XTermTerminal> {
const Terminal = await this._getXtermConstructor();
const font = this._configHelper.getFont(undefined, true);
const config = this._configHelper.config;
const editorOptions = this._configurationService.getValue<IEditorOptions>('editor');
const xterm = new Terminal({
cols: this._cols || Constants.DefaultCols,
rows: this._rows || Constants.DefaultRows,
altClickMovesCursor: config.altClickMovesCursor && editorOptions.multiCursorModifier === 'alt',
scrollback: config.scrollback,
theme: this._getXtermTheme(),
drawBoldTextInBrightColors: config.drawBoldTextInBrightColors,
fontFamily: font.fontFamily,
fontWeight: config.fontWeight,
fontWeightBold: config.fontWeightBold,
fontSize: font.fontSize,
letterSpacing: font.letterSpacing,
lineHeight: font.lineHeight,
minimumContrastRatio: config.minimumContrastRatio,
cursorBlink: config.cursorBlinking,
cursorStyle: config.cursorStyle === 'line' ? 'bar' : config.cursorStyle,
cursorWidth: config.cursorWidth,
bellStyle: 'none',
macOptionIsMeta: config.macOptionIsMeta,
macOptionClickForcesSelection: config.macOptionClickForcesSelection,
rightClickSelectsWord: config.rightClickBehavior === 'selectWord',
fastScrollModifier: 'alt',
fastScrollSensitivity: editorOptions.fastScrollSensitivity,
scrollSensitivity: editorOptions.mouseWheelScrollSensitivity,
rendererType: this._getBuiltInXtermRenderer(config.gpuAcceleration, TerminalInstance._suggestedRendererType),
wordSeparator: config.wordSeparators
});
this._xterm = xterm;
this._xtermCore = (xterm as any)._core as XTermCore;
this._updateUnicodeVersion();
this.updateAccessibilitySupport();
this._terminalInstanceService.getXtermSearchConstructor().then(addonCtor => {
this._xtermSearch = new addonCtor();
xterm.loadAddon(this._xtermSearch);
});
if (this._shellLaunchConfig.initialText) {
this._xterm.writeln(this._shellLaunchConfig.initialText);
}
// Delay the creation of the bell listener to avoid showing the bell when the terminal
// starts up or reconnects
setTimeout(() => {
this._xterm?.onBell(() => {
if (this._configHelper.config.enableBell) {
this.statusList.add({
id: TerminalStatus.Bell,
severity: Severity.Warning,
icon: Codicon.bell,
tooltip: nls.localize('bellStatus', "Bell")
}, this._configHelper.config.bellDuration);
}
});
}, 1000);
this._xterm.onLineFeed(() => this._onLineFeed());
this._xterm.onKey(e => this._onKey(e.key, e.domEvent));
this._xterm.onSelectionChange(async () => this._onSelectionChange());
this._xterm.buffer.onBufferChange(() => this._refreshAltBufferContextKey());
this._processManager.onProcessData(e => this._onProcessData(e));
this._xterm.onData(async data => {
await this._processManager.write(data);
this._onDidInputData.fire(this);
});
this._xterm.onBinary(data => this._processManager.processBinary(data));
this.processReady.then(async () => {
if (this._linkManager) {
this._linkManager.processCwd = await this._processManager.getInitialCwd();
}
});
// Init winpty compat and link handler after process creation as they rely on the
// underlying process OS
this._processManager.onProcessReady((processTraits) => {
// If links are ready, do not re-create the manager.
if (this._areLinksReady) {
return;
}
if (this._processManager.os === OperatingSystem.Windows) {
xterm.setOption('windowsMode', processTraits.requiresWindowsMode || false);
// Force line data to be sent when the cursor is moved, the main purpose for
// this is because ConPTY will often not do a line feed but instead move the
// cursor, in which case we still want to send the current line's data to tasks.
xterm.parser.registerCsiHandler({ final: 'H' }, () => {
this._onCursorMove();
return false;
});
}
this._linkManager = this._instantiationService.createInstance(TerminalLinkManager, xterm, this._processManager!);
this._areLinksReady = true;
this._onLinksReady.fire(this);
});
this._commandTrackerAddon = new CommandTrackerAddon();
this._xterm.loadAddon(this._commandTrackerAddon);
this._register(this._themeService.onDidColorThemeChange(theme => this._updateTheme(xterm, theme)));
this._register(this._viewDescriptorService.onDidChangeLocation(({ views }) => {
if (views.some(v => v.id === TERMINAL_VIEW_ID)) {
this._updateTheme(xterm);
}
}));
this._xtermTypeAhead = this._register(this._instantiationService.createInstance(TypeAheadAddon, this._processManager, this._configHelper));
this._xterm.loadAddon(this._xtermTypeAhead);
this._pathService.userHome().then(userHome => {
this._userHome = userHome.fsPath;
});
return xterm;
}
detachFromElement(): void {
this._wrapperElement?.remove();
this._container = undefined;
}
attachToElement(container: HTMLElement): Promise<void> | void {
// The container did not change, do nothing
if (this._container === container) {
return;
}
this._attachBarrier.open();
// Attach has not occurred yet
if (!this._wrapperElement) {
return this._attachToElement(container);
}
// Update the theme when attaching as the terminal location could have changed
if (this._xterm) {
this._updateTheme(this._xterm);
}
// The container changed, reattach
this._container = container;
this._container.appendChild(this._wrapperElement);
setTimeout(() => this._initDragAndDrop(container));
}
private async _attachToElement(container: HTMLElement): Promise<void> {
if (this._wrapperElement) {
throw new Error('The terminal instance has already been attached to a container');
}
this._container = container;
this._wrapperElement = document.createElement('div');
this._wrapperElement.classList.add('terminal-wrapper');
this._xtermElement = document.createElement('div');
this._wrapperElement.appendChild(this._xtermElement);
this._container.appendChild(this._wrapperElement);
const xterm = await this._xtermReadyPromise;
// Attach the xterm object to the DOM, exposing it to the smoke tests
this._wrapperElement.xterm = xterm;
this._updateTheme(xterm);
xterm.open(this._xtermElement);
if (!xterm.element || !xterm.textarea) {
throw new Error('xterm elements not set after open');
}
this._setAriaLabel(xterm, this._instanceId, this._title);
xterm.attachCustomKeyEventHandler((event: KeyboardEvent): boolean => {
// Disable all input if the terminal is exiting
if (this._isExiting) {
return false;
}
const standardKeyboardEvent = new StandardKeyboardEvent(event);
const resolveResult = this._keybindingService.softDispatch(standardKeyboardEvent, standardKeyboardEvent.target);
// Respect chords if the allowChords setting is set and it's not Escape. Escape is
// handled specially for Zen Mode's Escape, Escape chord, plus it's important in
// terminals generally
const isValidChord = resolveResult?.enterChord && this._configHelper.config.allowChords && event.key !== 'Escape';
if (this._keybindingService.inChordMode || isValidChord) {
event.preventDefault();
return false;
}
const SHOW_TERMINAL_CONFIG_PROMPT_KEY = 'terminal.integrated.showTerminalConfigPrompt';
const EXCLUDED_KEYS = ['RightArrow', 'LeftArrow', 'UpArrow', 'DownArrow', 'Space', 'Meta', 'Control', 'Shift', 'Alt', '', 'Delete', 'Backspace', 'Tab'];
// only keep track of input if prompt hasn't already been shown
if (this._storageService.getBoolean(SHOW_TERMINAL_CONFIG_PROMPT_KEY, StorageScope.GLOBAL, true) &&
!EXCLUDED_KEYS.includes(event.key) &&
!event.ctrlKey &&
!event.shiftKey &&
!event.altKey) {
this._hasHadInput = true;
}
// for keyboard events that resolve to commands described
// within commandsToSkipShell, either alert or skip processing by xterm.js
if (resolveResult && resolveResult.commandId && this._skipTerminalCommands.some(k => k === resolveResult.commandId) && !this._configHelper.config.sendKeybindingsToShell) {
// don't alert when terminal is opened or closed
if (this._storageService.getBoolean(SHOW_TERMINAL_CONFIG_PROMPT_KEY, StorageScope.GLOBAL, true) &&
this._hasHadInput &&
!TERMINAL_CREATION_COMMANDS.includes(resolveResult.commandId)) {
this._notificationService.prompt(
Severity.Info,
nls.localize('keybindingHandling', "Some keybindings don't go to the terminal by default and are handled by {0} instead.", this._productService.nameLong),
[
{
label: nls.localize('configureTerminalSettings', "Configure Terminal Settings"),
run: () => {
this._preferencesService.openSettings({ jsonEditor: false, query: `@id:${TerminalSettingId.CommandsToSkipShell},${TerminalSettingId.SendKeybindingsToShell},${TerminalSettingId.AllowChords}` });
}
} as IPromptChoice
]
);
this._storageService.store(SHOW_TERMINAL_CONFIG_PROMPT_KEY, false, StorageScope.GLOBAL, StorageTarget.USER);
}
event.preventDefault();
return false;
}
// Skip processing by xterm.js of keyboard events that match menu bar mnemonics
if (this._configHelper.config.allowMnemonics && !isMacintosh && event.altKey) {
return false;
}
// If tab focus mode is on, tab is not passed to the terminal
if (TabFocus.getTabFocusMode() && event.keyCode === 9) {
return false;
}
// Always have alt+F4 skip the terminal on Windows and allow it to be handled by the
// system
if (isWindows && event.altKey && event.key === 'F4' && !event.ctrlKey) {
return false;
}
// Fallback to force ctrl+v to paste on browsers that do not support
// navigator.clipboard.readText
if (!BrowserFeatures.clipboard.readText && event.key === 'v' && event.ctrlKey) {
return false;
}
return true;
});
this._register(dom.addDisposableListener(xterm.element, 'mousedown', () => {
// We need to listen to the mouseup event on the document since the user may release
// the mouse button anywhere outside of _xterm.element.
const listener = dom.addDisposableListener(document, 'mouseup', () => {
// Delay with a setTimeout to allow the mouseup to propagate through the DOM
// before evaluating the new selection state.
setTimeout(() => this._refreshSelectionContextKey(), 0);
listener.dispose();
});
}));
this._register(dom.addDisposableListener(xterm.element, 'touchstart', () => {
xterm.focus();
}));
this._register(dom.addDisposableListener(xterm.element, 'wheel', (e) => {
if (this._hasScrollBar && e.shiftKey) {
e.stopImmediatePropagation();
e.preventDefault();
}
}));
// xterm.js currently drops selection on keyup as we need to handle this case.
this._register(dom.addDisposableListener(xterm.element, 'keyup', () => {
// Wait until keyup has propagated through the DOM before evaluating
// the new selection state.
setTimeout(() => this._refreshSelectionContextKey(), 0);
}));
this._register(dom.addDisposableListener(xterm.textarea, 'focus', () => {
this._terminalFocusContextKey.set(true);
if (this.shellType) {
this._terminalShellTypeContextKey.set(this.shellType.toString());
} else {
this._terminalShellTypeContextKey.reset();
}
this._onDidFocus.fire(this);
}));
this._register(dom.addDisposableListener(xterm.textarea, 'blur', () => {
this._terminalFocusContextKey.reset();
this._onDidBlur.fire(this);
this._refreshSelectionContextKey();
}));
this._initDragAndDrop(container);
this._widgetManager.attachToElement(xterm.element);
this._processManager.onProcessReady((e) => {
this._linkManager?.setWidgetManager(this._widgetManager);
this._capabilities = e.capabilities;
this._workspaceFolder = path.basename(e.cwd.toString());
});
// const computedStyle = window.getComputedStyle(this._container);
// const computedStyle = window.getComputedStyle(this._container.parentElement!);
// const width = parseInt(computedStyle.getPropertyValue('width').replace('px', ''), 10);
// const height = parseInt(computedStyle.getPropertyValue('height').replace('px', ''), 10);
if (this._lastLayoutDimensions) {
this.layout(this._lastLayoutDimensions);
}
this.setVisible(this._isVisible);
this.updateConfig();
// If IShellLaunchConfig.waitOnExit was true and the process finished before the terminal
// panel was initialized.
if (xterm.getOption('disableStdin')) {
this._attachPressAnyKeyToCloseListener(xterm);
}
}
private _initDragAndDrop(container: HTMLElement) {
this._dndObserver?.dispose();
const dndController = this._instantiationService.createInstance(TerminalInstanceDragAndDropController, container);
dndController.onDropTerminal(e => this._onRequestAddInstanceToGroup.fire(e));
dndController.onDropFile(async path => {
const preparedPath = await this._terminalInstanceService.preparePathForTerminalAsync(path, this.shellLaunchConfig.executable, this.title, this.shellType, this.isRemote);
this.sendText(preparedPath, false);
this.focus();
});
this._dndObserver = new DragAndDropObserver(container, dndController);
}
private async _measureRenderTime(): Promise<void> {
await this._xtermReadyPromise;
const frameTimes: number[] = [];
if (!this._xtermCore?._renderService) {
return;
}
const textRenderLayer = this._xtermCore!._renderService?._renderer._renderLayers[0];
const originalOnGridChanged = textRenderLayer?.onGridChanged;
const evaluateCanvasRenderer = () => {
// Discard first frame time as it's normal to take longer
frameTimes.shift();
const medianTime = frameTimes.sort((a, b) => a - b)[Math.floor(frameTimes.length / 2)];
if (medianTime > SLOW_CANVAS_RENDER_THRESHOLD) {
if (this._configHelper.config.gpuAcceleration === 'auto') {
TerminalInstance._suggestedRendererType = 'dom';
this.updateConfig();
} else {
const promptChoices: IPromptChoice[] = [
{
label: nls.localize('yes', "Yes"),
run: () => this._configurationService.updateValue(TerminalSettingId.GpuAcceleration, 'off', ConfigurationTarget.USER)
} as IPromptChoice,
{
label: nls.localize('no', "No"),
run: () => { }
} as IPromptChoice,
{
label: nls.localize('dontShowAgain', "Don't Show Again"),
isSecondary: true,
run: () => this._storageService.store(TerminalStorageKeys.NeverMeasureRenderTime, true, StorageScope.GLOBAL, StorageTarget.MACHINE)
} as IPromptChoice
];
this._notificationService.prompt(
Severity.Warning,
nls.localize('terminal.slowRendering', 'Terminal GPU acceleration appears to be slow on your computer. Would you like to switch to disable it which may improve performance? [Read more about terminal settings](https://code.visualstudio.com/docs/editor/integrated-terminal#_changing-how-the-terminal-is-rendered).'),
promptChoices
);
}
}
};
textRenderLayer.onGridChanged = (terminal: XTermTerminal, firstRow: number, lastRow: number) => {
const startTime = performance.now();
originalOnGridChanged.call(textRenderLayer, terminal, firstRow, lastRow);
frameTimes.push(performance.now() - startTime);
if (frameTimes.length === NUMBER_OF_FRAMES_TO_MEASURE) {
evaluateCanvasRenderer();
// Restore original function
textRenderLayer.onGridChanged = originalOnGridChanged;
}
};
}
hasSelection(): boolean {