#3920: Notebooks file save/save all/cache - for existing files (#4286)

* #3920: Notebooks file save

* Missed in merge

* #4290: Untitled save and native dirty implementation

* Misc changes

* Content Manager, notebooks extension and commented failed unit tests

* Removing modelLoaded event
This commit is contained in:
Raj
2019-03-07 18:07:20 -08:00
committed by GitHub
parent 2a903e9f03
commit 036ffe595a
15 changed files with 486 additions and 400 deletions

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@@ -14,4 +14,5 @@ export const RestoreFeatureName = 'restore';
export const BackupFeatureName = 'backup';
export const MssqlProviderId = 'MSSQL';
export const notebookModeId = 'notebook';

View File

@@ -13,10 +13,11 @@ import { QueryResultsInput } from 'sql/parts/query/common/queryResultsInput';
import { QueryInput } from 'sql/parts/query/common/queryInput';
import { IQueryEditorOptions } from 'sql/workbench/services/queryEditor/common/queryEditorService';
import { QueryPlanInput } from 'sql/parts/queryPlan/queryPlanInput';
import { NotebookInput, NotebookInputModel } from 'sql/parts/notebook/notebookInput';
import { NotebookInput, NotebookEditorModel } from 'sql/parts/notebook/notebookInput';
import { DEFAULT_NOTEBOOK_PROVIDER, INotebookService } from 'sql/workbench/services/notebook/common/notebookService';
import { getProvidersForFileName, getStandardKernelsForProvider } from 'sql/parts/notebook/notebookUtils';
import { ResourceEditorInput } from 'vs/workbench/common/editor/resourceEditorInput';
import { notebookModeId } from 'sql/common/constants';
const fs = require('fs');
@@ -27,7 +28,6 @@ export const untitledFilePrefix = 'SQLQuery';
// mode identifier for SQL mode
export const sqlModeId = 'sql';
export const notebookModeId = 'notebook';
/**
* Checks if the specified input is supported by one our custom input types, and if so convert it
@@ -63,16 +63,8 @@ export function convertEditorInput(input: EditorInput, options: IQueryEditorOpti
let providerIds: string[] = [DEFAULT_NOTEBOOK_PROVIDER];
if (input) {
fileName = input.getName();
providerIds = getProvidersForFileName(fileName, notebookService);
}
let notebookInputModel = new NotebookInputModel(uri, undefined, false, undefined);
notebookInputModel.providerId = providerIds.filter(provider => provider !== DEFAULT_NOTEBOOK_PROVIDER)[0];
notebookInputModel.providers = providerIds;
notebookInputModel.providers.forEach(provider => {
let standardKernels = getStandardKernelsForProvider(provider, notebookService);
notebookInputModel.standardKernels = standardKernels;
});
let notebookInput: NotebookInput = instantiationService.createInstance(NotebookInput, fileName, notebookInputModel);
let notebookInput: NotebookInput = instantiationService.createInstance(NotebookInput, fileName, uri);
return notebookInput;
});
}
@@ -257,4 +249,4 @@ export function getFileMode(instantiationService: IInstantiationService, resourc
}
return sqlModeId;
});
}
}

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@@ -183,15 +183,15 @@ export class QueryTextEditor extends BaseTextEditor {
public toggleEditorSelected(selected: boolean): void {
this._selected = selected;
this.refreshEditorConfguration();
this.refreshEditorConfiguration();
}
public set hideLineNumbers(value: boolean) {
this._hideLineNumbers = value;
this.refreshEditorConfguration();
this.refreshEditorConfiguration();
}
private refreshEditorConfguration(configuration = this.configurationService.getValue<IEditorConfiguration>(this.getResource())): void {
private refreshEditorConfiguration(configuration = this.configurationService.getValue<IEditorConfiguration>(this.getResource())): void {
if (!this.getControl()) {
return;
}

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@@ -369,6 +369,11 @@ export interface INotebookModel {
*/
saveModel(): Promise<boolean>;
/**
* Serialize notebook cell content to JSON
*/
toJSON(): nb.INotebookContents;
/**
* Notifies the notebook of a change in the cell
*/
@@ -455,6 +460,12 @@ export interface IModelFactory {
createClientSession(options: IClientSessionOptions): IClientSession;
}
export interface IContentManager {
/**
* This is a specialized method intended to load for a default context - just the current Notebook's URI
*/
loadContent(): Promise<nb.INotebookContents>;
}
export interface INotebookModelOptions {
/**
@@ -467,6 +478,7 @@ export interface INotebookModelOptions {
*/
factory: IModelFactory;
contentManager: IContentManager;
notebookManagers: INotebookManager[];
providerId: string;
standardKernels: IStandardKernelWithProvider[];
@@ -498,4 +510,4 @@ export interface ICellMagicMapper {
export namespace notebookConstants {
export const SQL = 'SQL';
}
}

View File

@@ -8,19 +8,18 @@
import { nb, connection } from 'azdata';
import { localize } from 'vs/nls';
import { Event, Emitter, forEach } from 'vs/base/common/event';
import { Event, Emitter } from 'vs/base/common/event';
import { Disposable } from 'vs/base/common/lifecycle';
import { CellModel } from './cell';
import { IClientSession, INotebookModel, IDefaultConnection, INotebookModelOptions, ICellModel, notebookConstants, NotebookContentChange } from './modelInterfaces';
import { NotebookChangeType, CellType, CellTypes } from 'sql/parts/notebook/models/contracts';
import { IClientSession, INotebookModel, IDefaultConnection, INotebookModelOptions, ICellModel, NotebookContentChange } from './modelInterfaces';
import { NotebookChangeType, CellType } from 'sql/parts/notebook/models/contracts';
import { nbversion } from '../notebookConstants';
import * as notebookUtils from '../notebookUtils';
import { INotebookManager, SQL_NOTEBOOK_PROVIDER, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/workbench/services/notebook/common/notebookService';
import { NotebookContexts } from 'sql/parts/notebook/models/notebookContexts';
import { IConnectionProfile } from 'sql/platform/connection/common/interfaces';
import { INotification, Severity } from 'vs/platform/notification/common/notification';
import { Schemas } from 'vs/base/common/network';
import { URI } from 'vs/base/common/uri';
import { ISingleNotebookEditOperation } from 'sql/workbench/api/common/sqlExtHostTypes';
import { ConnectionProfile } from 'sql/platform/connection/common/connectionProfile';
@@ -130,6 +129,7 @@ export class NotebookModel extends Disposable implements INotebookModel {
return this._contentChangedEmitter.event;
}
public get isSessionReady(): boolean {
return !!this._activeClientSession;
}
@@ -253,10 +253,11 @@ export class NotebookModel extends Disposable implements INotebookModel {
try {
this._trustedMode = isTrusted;
let contents = null;
if (this._notebookOptions.notebookUri.scheme !== Schemas.untitled) {
// TODO: separate ContentManager from NotebookManager
contents = await this.notebookManagers[0].contentManager.getNotebookContents(this._notebookOptions.notebookUri);
if (this._notebookOptions && this._notebookOptions.contentManager) {
contents = await this._notebookOptions.contentManager.loadContent();
}
let factory = this._notebookOptions.factory;
// if cells already exist, create them with language info (if it is saved)
this._cells = [];

View File

@@ -15,7 +15,7 @@
<text-cell-component *ngIf="cell.cellType === 'markdown'" [cellModel]="cell" [model]="model" [activeCellId]="activeCellId">
</text-cell-component>
</div>
<div class="notebook-cell" *ngIf="!cells.length && !isLoading">
<div class="notebook-cell" *ngIf="(!cells || !cells.length) && !isLoading">
<placeholder-cell-component [cellModel]="cell" [model]="model">
</placeholder-cell-component>
</div>

View File

@@ -194,7 +194,7 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
this._model.cells.forEach(cell => {
cell.trustedMode = isTrusted;
});
this.setDirty(true);
//TODO: Handle dirty for trust?
this._changeRef.detectChanges();
}
@@ -253,6 +253,7 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
connectionService: this.connectionManagementService,
notificationService: this.notificationService,
notebookManagers: this.notebookManagers,
contentManager: this._notebookParams.input.contentManager,
standardKernels: this._notebookParams.input.standardKernels,
cellMagicMapper: new CellMagicMapper(this.notebookService.languageMagics),
providerId: 'sql', // this is tricky; really should also depend on the connection profile
@@ -321,7 +322,6 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
private handleContentChanged(change: NotebookContentChange) {
// Note: for now we just need to set dirty state and refresh the UI.
this.setDirty(true);
this._changeRef.detectChanges();
}

View File

@@ -8,38 +8,148 @@
import * as nls from 'vs/nls';
import { TPromise } from 'vs/base/common/winjs.base';
import { IEditorModel } from 'vs/platform/editor/common/editor';
import { EditorInput, EditorModel, ConfirmResult } from 'vs/workbench/common/editor';
import { EditorInput, EditorModel } from 'vs/workbench/common/editor';
import { Emitter, Event } from 'vs/base/common/event';
import { URI } from 'vs/base/common/uri';
import * as resources from 'vs/base/common/resources';
import * as azdata from 'azdata';
import { IStandardKernelWithProvider } from 'sql/parts/notebook/notebookUtils';
import { INotebookService, INotebookEditor } from 'sql/workbench/services/notebook/common/notebookService';
import { IDialogService } from 'vs/platform/dialogs/common/dialogs';
import Severity from 'vs/base/common/severity';
import { IStandardKernelWithProvider, getProvidersForFileName, getStandardKernelsForProvider } from 'sql/parts/notebook/notebookUtils';
import { INotebookService, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/workbench/services/notebook/common/notebookService';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { ITextModelService } from 'vs/editor/common/services/resolverService';
import { INotebookModel, IContentManager } from 'sql/parts/notebook/models/modelInterfaces';
import { TextFileEditorModel } from 'vs/workbench/services/textfile/common/textFileEditorModel';
import { Range } from 'vs/editor/common/core/range';
import { UntitledEditorModel } from 'vs/workbench/common/editor/untitledEditorModel';
import { Schemas } from 'vs/base/common/network';
import { IUntitledEditorService } from 'vs/workbench/services/untitled/common/untitledEditorService';
import { notebookModeId } from 'sql/common/constants';
import { LocalContentManager } from 'sql/workbench/services/notebook/node/localContentManager';
export type ModeViewSaveHandler = (handle: number) => Thenable<boolean>;
export class NotebookInputModel extends EditorModel {
export class NotebookEditorModel extends EditorModel {
private dirty: boolean;
private readonly _onDidChangeDirty: Emitter<void> = this._register(new Emitter<void>());
private _providerId: string;
private _standardKernels: IStandardKernelWithProvider[];
private _defaultKernel: azdata.nb.IKernelSpec;
constructor(public readonly notebookUri: URI,
private readonly handle: number,
private _isTrusted: boolean = false,
private saveHandler?: ModeViewSaveHandler,
provider?: string,
private _providers?: string[],
private _connectionProfileId?: string) {
private textEditorModel: TextFileEditorModel | UntitledEditorModel,
@INotebookService private notebookService: INotebookService
) {
super();
this.dirty = false;
this._providerId = provider;
this._register(this.notebookService.onNotebookEditorAdd(notebook => {
if (notebook.id === this.notebookUri.toString()) {
// Hook to content change events
notebook.modelReady.then(() => {
this._register(notebook.model.contentChanged(e => this.updateModel()));
this._register(notebook.model.kernelChanged(e => this.updateModel()));
}, err => undefined);
}
}));
if (this.textEditorModel instanceof UntitledEditorModel) {
this._register(this.textEditorModel.onDidChangeDirty(e => this.setDirty(this.textEditorModel.isDirty())));
} else {
this._register(this.textEditorModel.onDidStateChange(e => this.setDirty(this.textEditorModel.isDirty())));
}
this.dirty = this.textEditorModel.isDirty();
}
public get contentString(): string {
let model = this.textEditorModel.textEditorModel;
return model.getValue();
}
get isDirty(): boolean {
return this.textEditorModel.isDirty();
}
public setDirty(dirty: boolean): void {
if (this.dirty === dirty) {
return;
}
this.dirty = dirty;
this._onDidChangeDirty.fire();
}
public updateModel(): void {
let notebookModel = this.getNotebookModel();
if (notebookModel && this.textEditorModel && this.textEditorModel.textEditorModel) {
let content = JSON.stringify(notebookModel.toJSON(), undefined, ' ');
let model = this.textEditorModel.textEditorModel;
let endLine = model.getLineCount();
let endCol = model.getLineLength(endLine);
this.textEditorModel.textEditorModel.applyEdits([{
range: new Range(1, 1, endLine, endCol),
text: content
}]);
}
}
isModelCreated(): boolean {
return this.getNotebookModel() !== undefined;
}
private getNotebookModel(): INotebookModel {
let editor = this.notebookService.listNotebookEditors().find(n => n.id === this.notebookUri.toString());
if (editor) {
return editor.model;
}
return undefined;
}
get onDidChangeDirty(): Event<void> {
return this._onDidChangeDirty.event;
}
}
export class NotebookInput extends EditorInput {
public static ID: string = 'workbench.editorinputs.notebookInput';
private _providerId: string;
private _providers: string[];
private _standardKernels: IStandardKernelWithProvider[];
private _connectionProfileId: string;
private _defaultKernel: azdata.nb.IKernelSpec;
private _isTrusted: boolean = false;
public hasBootstrapped = false;
// Holds the HTML content for the editor when the editor discards this input and loads another
private _parentContainer: HTMLElement;
private readonly _layoutChanged: Emitter<void> = this._register(new Emitter<void>());
private _model: NotebookEditorModel;
private _untitledEditorService: IUntitledEditorService;
private _contentManager: IContentManager;
constructor(private _title: string,
private resource: URI,
@ITextModelService private textModelService: ITextModelService,
@IUntitledEditorService untitledEditorService: IUntitledEditorService,
@IInstantiationService private instantiationService: IInstantiationService,
@INotebookService private notebookService: INotebookService
) {
super();
this._untitledEditorService = untitledEditorService;
this.resource = resource;
this._standardKernels = [];
this.assignProviders();
}
public get notebookUri(): URI {
return this.resource;
}
public get contentManager(): IContentManager {
if (!this._contentManager) {
this._contentManager = new NotebookEditorContentManager(this);
}
return this._contentManager;
}
public getName(): string {
if (!this._title) {
this._title = resources.basenameOrAuthority(this.resource);
}
return this._title;
}
public get providerId(): string {
@@ -50,12 +160,16 @@ export class NotebookInputModel extends EditorModel {
this._providerId = value;
}
public get providers(): string[] {
return this._providers;
public get isTrusted(): boolean {
return this._isTrusted;
}
public set providers(value: string[]) {
this._providers = value;
public set isTrusted(value: boolean) {
this._isTrusted = value;
}
public set connectionProfileId(value: string) {
this._connectionProfileId = value;
}
public get connectionProfileId(): string {
@@ -66,6 +180,14 @@ export class NotebookInputModel extends EditorModel {
return this._standardKernels;
}
public get providers(): string[] {
return this._providers;
}
public set providers(value: string[]) {
this._providers = value;
}
public set standardKernels(value: IStandardKernelWithProvider[]) {
value.forEach(kernel => {
this._standardKernels.push({
@@ -84,76 +206,6 @@ export class NotebookInputModel extends EditorModel {
this._defaultKernel = kernel;
}
get isTrusted(): boolean {
return this._isTrusted;
}
get onDidChangeDirty(): Event<void> {
return this._onDidChangeDirty.event;
}
get isDirty(): boolean {
return this.dirty;
}
public setDirty(dirty: boolean): void {
if (this.dirty === dirty) {
return;
}
this.dirty = dirty;
this._onDidChangeDirty.fire();
}
save(): TPromise<boolean> {
if (this.saveHandler) {
return TPromise.wrap(this.saveHandler(this.handle));
}
return TPromise.wrap(true);
}
}
export class NotebookInput extends EditorInput {
public static ID: string = 'workbench.editorinputs.notebookInput';
public hasBootstrapped = false;
// Holds the HTML content for the editor when the editor discards this input and loads another
private _parentContainer: HTMLElement;
private readonly _layoutChanged: Emitter<void> = this._register(new Emitter<void>());
constructor(private _title: string,
private _model: NotebookInputModel,
@INotebookService private notebookService: INotebookService,
@IDialogService private dialogService: IDialogService
) {
super();
this._model.onDidChangeDirty(() => this._onDidChangeDirty.fire());
}
public get notebookUri(): URI {
return this._model.notebookUri;
}
public get providerId(): string {
return this._model.providerId;
}
public get providers(): string[] {
return this._model.providers;
}
public get connectionProfileId(): string {
return this._model.connectionProfileId;
}
public get standardKernels(): IStandardKernelWithProvider[] {
return this._model.standardKernels;
}
public get defaultKernel(): azdata.nb.IKernelSpec {
return this._model.defaultKernel;
}
get layoutChanged(): Event<void> {
return this._layoutChanged.event;
}
@@ -166,20 +218,38 @@ export class NotebookInput extends EditorInput {
return NotebookInput.ID;
}
public resolve(refresh?: boolean): TPromise<IEditorModel> {
return undefined;
getResource(): URI {
return this.resource;
}
public getName(): string {
if (!this._title) {
this._title = resources.basenameOrAuthority(this._model.notebookUri);
async resolve(): TPromise<NotebookEditorModel> {
if (this._model && this._model.isModelCreated()) {
return TPromise.as(this._model);
} else {
let textOrUntitledEditorModel: UntitledEditorModel | IEditorModel;
if (this.resource.scheme === Schemas.untitled) {
textOrUntitledEditorModel = await this._untitledEditorService.loadOrCreate({ resource: this.resource, modeId: notebookModeId });
}
else {
const textEditorModelReference = await this.textModelService.createModelReference(this.resource);
textOrUntitledEditorModel = await textEditorModelReference.object.load();
}
this._model = this.instantiationService.createInstance(NotebookEditorModel, this.resource, textOrUntitledEditorModel);
this._model.onDidChangeDirty(() => this._onDidChangeDirty.fire());
return this._model;
}
return this._title;
}
public get isTrusted(): boolean {
return this._model.isTrusted;
private assignProviders(): void {
let providerIds: string[] = getProvidersForFileName(this._title, this.notebookService);
if (providerIds && providerIds.length > 0) {
this._providerId = providerIds.filter(provider => provider !== DEFAULT_NOTEBOOK_PROVIDER)[0];
this._providers = providerIds;
this._providers.forEach(provider => {
let standardKernels = getStandardKernelsForProvider(provider, this.notebookService);
this._standardKernels = standardKernels;
});
}
}
public dispose(): void {
@@ -212,50 +282,10 @@ export class NotebookInput extends EditorInput {
* An editor that is dirty will be asked to be saved once it closes.
*/
isDirty(): boolean {
return this._model.isDirty;
}
/**
* Subclasses should bring up a proper dialog for the user if the editor is dirty and return the result.
*/
confirmSave(): TPromise<ConfirmResult> {
// TODO #2530 support save on close / confirm save. This is significantly more work
// as we need to either integrate with textFileService (seems like this isn't viable)
// or register our own complimentary service that handles the lifecycle operations such
// as close all, auto save etc.
const message = nls.localize('saveChangesMessage', "Do you want to save the changes you made to {0}?", this.getTitle());
const buttons: string[] = [
nls.localize({ key: 'save', comment: ['&& denotes a mnemonic'] }, "&&Save"),
nls.localize({ key: 'dontSave', comment: ['&& denotes a mnemonic'] }, "Do&&n't Save"),
nls.localize('cancel', "Cancel")
];
return this.dialogService.show(Severity.Warning, message, buttons, {
cancelId: 2,
detail: nls.localize('saveChangesDetail', "Your changes will be lost if you don't save them.")
}).then(index => {
switch (index) {
case 0: return ConfirmResult.SAVE;
case 1: return ConfirmResult.DONT_SAVE;
default: return ConfirmResult.CANCEL;
}
});
}
/**
* Saves the editor if it is dirty. Subclasses return a promise with a boolean indicating the success of the operation.
*/
save(): TPromise<boolean> {
let activeEditor: INotebookEditor;
for (const editor of this.notebookService.listNotebookEditors()) {
if (editor.isActive()) {
activeEditor = editor;
}
if (this._model) {
return this._model.isDirty;
}
if (activeEditor) {
return TPromise.wrap(activeEditor.save().then((val) => { return val; }));
}
return TPromise.wrap(false);
return false;
}
/**
@@ -263,9 +293,14 @@ export class NotebookInput extends EditorInput {
* @param isDirty boolean value to set editor dirty
*/
setDirty(isDirty: boolean): void {
this._model.setDirty(isDirty);
if (this._model) {
this._model.setDirty(isDirty);
}
}
updateModel(): void {
this._model.updateModel();
}
public matches(otherInput: any): boolean {
if (super.matches(otherInput) === true) {
@@ -278,7 +313,18 @@ export class NotebookInput extends EditorInput {
// Compare by resource
return otherNotebookEditorInput.notebookUri.toString() === this.notebookUri.toString();
}
return false;
}
}
}
class NotebookEditorContentManager implements IContentManager {
constructor(private notebookInput: NotebookInput) {
}
async loadContent(): Promise<azdata.nb.INotebookContents> {
let notebookEditorModel = await this.notebookInput.resolve();
let contentManager = new LocalContentManager();
let contents = await contentManager.loadFromContentString(notebookEditorModel.contentString);
return contents;
}
}

View File

@@ -21,10 +21,9 @@ import {
SqlMainContext, MainThreadNotebookDocumentsAndEditorsShape, SqlExtHostContext, ExtHostNotebookDocumentsAndEditorsShape,
INotebookDocumentsAndEditorsDelta, INotebookEditorAddData, INotebookShowOptions, INotebookModelAddedData, INotebookModelChangedData
} from 'sql/workbench/api/node/sqlExtHost.protocol';
import { NotebookInputModel, NotebookInput } from 'sql/parts/notebook/notebookInput';
import { NotebookInput, NotebookEditorModel } from 'sql/parts/notebook/notebookInput';
import { INotebookService, INotebookEditor, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/workbench/services/notebook/common/notebookService';
import { TPromise } from 'vs/base/common/winjs.base';
import { getProvidersForFileName, getStandardKernelsForProvider } from 'sql/parts/notebook/notebookUtils';
import { ISingleNotebookEditOperation } from 'sql/workbench/api/common/sqlExtHostTypes';
import { disposed } from 'vs/base/common/errors';
import { ICellModel, NotebookContentChange, INotebookModel } from 'sql/parts/notebook/models/modelInterfaces';
@@ -361,26 +360,10 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
pinned: !options.preview
};
let trusted = uri.scheme === Schemas.untitled;
let model = new NotebookInputModel(uri, undefined, trusted, undefined, undefined, undefined, options.connectionId);
let providerId = options.providerId;
let providers: string[] = undefined;
// Ensure there is always a sensible provider ID for this file type
providers = getProvidersForFileName(uri.fsPath, this._notebookService);
// Try to use a non-builtin provider first
if (providers) {
providerId = providers.find(p => p !== DEFAULT_NOTEBOOK_PROVIDER);
if (!providerId) {
providerId = model.providerId;
}
}
model.providers = providers;
model.providerId = providerId;
model.defaultKernel = options && options.defaultKernel;
model.providers.forEach(provider => {
let standardKernels = getStandardKernelsForProvider(provider, this._notebookService);
model.standardKernels = standardKernels;
});
let input = this._instantiationService.createInstance(NotebookInput, undefined, model);
let input = this._instantiationService.createInstance(NotebookInput, uri.fsPath, uri);
input.isTrusted = trusted;
input.defaultKernel = options.defaultKernel;
input.connectionProfileId = options.connectionId;
let editor = await this._editorService.openEditor(input, editorOptions, viewColumnToEditorGroup(this._editorGroupService, options.position));
if (!editor) {

View File

@@ -22,6 +22,29 @@ import { nbformat } from 'sql/parts/notebook/models/nbformat';
type MimeBundle = { [key: string]: string | string[] | undefined };
export class LocalContentManager implements nb.ContentManager {
public async loadFromContentString(contentString: string): Promise<nb.INotebookContents> {
let contents: JSONObject = json.parse(contentString);
if (contents) {
if (contents.nbformat === 4) {
return v4.readNotebook(<any>contents);
} else if (contents.nbformat === 3) {
return v3.readNotebook(<any>contents);
}
if (contents.nbformat) {
throw new TypeError(localize('nbformatNotRecognized', 'nbformat v{0}.{1} not recognized', contents.nbformat as any, contents.nbformat_minor as any));
}
} else if (contentString === '' || contentString === undefined) {
// Empty?
return v4.createEmptyNotebook();
}
// else, fallthrough condition
throw new TypeError(localize('nbNotSupported', 'This file does not have a valid notebook format'));
}
public async getNotebookContents(notebookUri: URI): Promise<nb.INotebookContents> {
if (!notebookUri) {
return undefined;