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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 { Schemas } from 'vs/base/common/network';
import { URI } from 'vs/base/common/uri';
import * as extHostProtocol from 'vs/workbench/api/common/extHost.protocol';
import { ExtHostDocuments } from 'vs/workbench/api/common/extHostDocuments';
import { ExtHostDocumentsAndEditors, IExtHostModelAddedData } from 'vs/workbench/api/common/extHostDocumentsAndEditors';
import * as extHostTypeConverters from 'vs/workbench/api/common/extHostTypeConverters';
import { NotebookRange } from 'vs/workbench/api/common/extHostTypes';
import * as notebookCommon from 'vs/workbench/contrib/notebook/common/notebookCommon';
import * as vscode from 'vscode';
class RawContentChangeEvent {
constructor(
readonly start: number,
readonly deletedCount: number,
readonly deletedItems: vscode.NotebookCell[],
readonly items: ExtHostCell[]
) { }
asApiEvent(): vscode.NotebookDocumentContentChange {
return {
range: new NotebookRange(this.start, this.start + this.deletedCount),
addedCells: this.items.map(cell => cell.apiCell),
removedCells: this.deletedItems,
};
}
}
export class ExtHostCell {
static asModelAddData(notebook: vscode.NotebookDocument, cell: extHostProtocol.NotebookCellDto): IExtHostModelAddedData {
return {
EOL: cell.eol,
lines: cell.source,
languageId: cell.language,
uri: cell.uri,
isDirty: false,
versionId: 1,
notebook
};
}
private _outputs: vscode.NotebookCellOutput[];
private _metadata: Readonly<notebookCommon.NotebookCellMetadata>;
private _previousResult: Readonly<vscode.NotebookCellExecutionSummary | undefined>;
private _internalMetadata: notebookCommon.NotebookCellInternalMetadata;
readonly handle: number;
readonly uri: URI;
readonly cellKind: notebookCommon.CellKind;
private _apiCell: vscode.NotebookCell | undefined;
private _mime: string | undefined;
constructor(
readonly notebook: ExtHostNotebookDocument,
private readonly _extHostDocument: ExtHostDocumentsAndEditors,
private readonly _cellData: extHostProtocol.NotebookCellDto,
) {
this.handle = _cellData.handle;
this.uri = URI.revive(_cellData.uri);
this.cellKind = _cellData.cellKind;
this._outputs = _cellData.outputs.map(extHostTypeConverters.NotebookCellOutput.to);
this._internalMetadata = _cellData.internalMetadata ?? {};
this._metadata = Object.freeze(_cellData.metadata ?? {});
this._previousResult = Object.freeze(extHostTypeConverters.NotebookCellExecutionSummary.to(_cellData.internalMetadata ?? {}));
}
get internalMetadata(): notebookCommon.NotebookCellInternalMetadata {
return this._internalMetadata;
}
get apiCell(): vscode.NotebookCell {
if (!this._apiCell) {
const that = this;
const data = this._extHostDocument.getDocument(this.uri);
if (!data) {
throw new Error(`MISSING extHostDocument for notebook cell: ${this.uri}`);
}
const apiCell: vscode.NotebookCell = {
get index() { return that.notebook.getCellIndex(that); },
notebook: that.notebook.apiNotebook,
kind: extHostTypeConverters.NotebookCellKind.to(this._cellData.cellKind),
document: data.document,
get mime() { return that._mime; },
set mime(value: string | undefined) { that._mime = value; },
get outputs() { return that._outputs.slice(0); },
get metadata() { return that._metadata; },
get executionSummary() { return that._previousResult; }
};
this._apiCell = Object.freeze(apiCell);
}
return this._apiCell;
}
setOutputs(newOutputs: extHostProtocol.NotebookOutputDto[]): void {
this._outputs = newOutputs.map(extHostTypeConverters.NotebookCellOutput.to);
}
setOutputItems(outputId: string, append: boolean, newOutputItems: extHostProtocol.NotebookOutputItemDto[]) {
const newItems = newOutputItems.map(extHostTypeConverters.NotebookCellOutputItem.to);
const output = this._outputs.find(op => op.id === outputId);
if (output) {
if (!append) {
output.items.length = 0;
}
output.items.push(...newItems);
}
}
setMetadata(newMetadata: notebookCommon.NotebookCellMetadata): void {
this._metadata = Object.freeze(newMetadata);
}
setInternalMetadata(newInternalMetadata: notebookCommon.NotebookCellInternalMetadata): void {
this._internalMetadata = newInternalMetadata;
this._previousResult = Object.freeze(extHostTypeConverters.NotebookCellExecutionSummary.to(newInternalMetadata));
}
setMime(newMime: string | undefined) {
}
}
export class ExtHostNotebookDocument {
private static _handlePool: number = 0;
readonly handle = ExtHostNotebookDocument._handlePool++;
private readonly _cells: ExtHostCell[] = [];
private readonly _notebookType: string;
private _notebook: vscode.NotebookDocument | undefined;
private _metadata: Record<string, any>;
private _versionId: number = 0;
private _isDirty: boolean = false;
private _backup?: vscode.NotebookDocumentBackup;
private _disposed: boolean = false;
constructor(
private readonly _proxy: extHostProtocol.MainThreadNotebookDocumentsShape,
private readonly _textDocumentsAndEditors: ExtHostDocumentsAndEditors,
private readonly _textDocuments: ExtHostDocuments,
readonly uri: URI,
data: extHostProtocol.INotebookModelAddedData
) {
this._notebookType = data.viewType;
this._metadata = Object.freeze(data.metadata ?? Object.create(null));
this._spliceNotebookCells([[0, 0, data.cells]], true /* init -> no event*/, undefined);
this._versionId = data.versionId;
}
dispose() {
this._disposed = true;
}
get apiNotebook(): vscode.NotebookDocument {
if (!this._notebook) {
const that = this;
const apiObject: vscode.NotebookDocument = {
get uri() { return that.uri; },
get version() { return that._versionId; },
get notebookType() { return that._notebookType; },
get isDirty() { return that._isDirty; },
get isUntitled() { return that.uri.scheme === Schemas.untitled; },
get isClosed() { return that._disposed; },
get metadata() { return that._metadata; },
get cellCount() { return that._cells.length; },
cellAt(index) {
index = that._validateIndex(index);
return that._cells[index].apiCell;
},
getCells(range) {
const cells = range ? that._getCells(range) : that._cells;
return cells.map(cell => cell.apiCell);
},
save() {
return that._save();
}
};
this._notebook = Object.freeze(apiObject);
}
return this._notebook;
}
updateBackup(backup: vscode.NotebookDocumentBackup): void {
this._backup?.delete();
this._backup = backup;
}
disposeBackup(): void {
this._backup?.delete();
this._backup = undefined;
}
acceptDocumentPropertiesChanged(data: extHostProtocol.INotebookDocumentPropertiesChangeData) {
if (data.metadata) {
this._metadata = Object.freeze({ ...this._metadata, ...data.metadata });
}
}
acceptDirty(isDirty: boolean): void {
this._isDirty = isDirty;
}
acceptModelChanged(event: extHostProtocol.NotebookCellsChangedEventDto, isDirty: boolean, newMetadata: notebookCommon.NotebookDocumentMetadata | undefined): vscode.NotebookDocumentChangeEvent {
this._versionId = event.versionId;
this._isDirty = isDirty;
this.acceptDocumentPropertiesChanged({ metadata: newMetadata });
const result = {
notebook: this.apiNotebook,
metadata: newMetadata,
cellChanges: <vscode.NotebookDocumentCellChange[]>[],
contentChanges: <vscode.NotebookDocumentContentChange[]>[],
};
type RelaxedCellChange = Partial<vscode.NotebookDocumentCellChange> & { cell: vscode.NotebookCell };
const relaxedCellChanges: RelaxedCellChange[] = [];
// -- apply change and populate content changes
for (const rawEvent of event.rawEvents) {
if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ModelChange) {
this._spliceNotebookCells(rawEvent.changes, false, result.contentChanges);
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.Move) {
this._moveCell(rawEvent.index, rawEvent.newIdx, result.contentChanges);
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.Output) {
this._setCellOutputs(rawEvent.index, rawEvent.outputs);
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, outputs: this._cells[rawEvent.index].apiCell.outputs });
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.OutputItem) {
this._setCellOutputItems(rawEvent.index, rawEvent.outputId, rawEvent.append, rawEvent.outputItems);
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, outputs: this._cells[rawEvent.index].apiCell.outputs });
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ChangeCellLanguage) {
this._changeCellLanguage(rawEvent.index, rawEvent.language);
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, document: this._cells[rawEvent.index].apiCell.document });
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ChangeCellContent) {
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, document: this._cells[rawEvent.index].apiCell.document });
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ChangeCellMime) {
this._changeCellMime(rawEvent.index, rawEvent.mime);
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ChangeCellMetadata) {
this._changeCellMetadata(rawEvent.index, rawEvent.metadata);
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, metadata: this._cells[rawEvent.index].apiCell.metadata });
} else if (rawEvent.kind === notebookCommon.NotebookCellsChangeType.ChangeCellInternalMetadata) {
this._changeCellInternalMetadata(rawEvent.index, rawEvent.internalMetadata);
relaxedCellChanges.push({ cell: this._cells[rawEvent.index].apiCell, executionSummary: this._cells[rawEvent.index].apiCell.executionSummary });
}
}
// -- compact cellChanges
const map = new Map<vscode.NotebookCell, number>();
for (let i = 0; i < relaxedCellChanges.length; i++) {
const relaxedCellChange = relaxedCellChanges[i];
const existing = map.get(relaxedCellChange.cell);
if (existing === undefined) {
const newLen = result.cellChanges.push({
document: undefined,
executionSummary: undefined,
metadata: undefined,
outputs: undefined,
...relaxedCellChange,
});
map.set(relaxedCellChange.cell, newLen - 1);
} else {
result.cellChanges[existing] = {
...result.cellChanges[existing],
...relaxedCellChange
};
}
}
// Freeze event properties so handlers cannot accidentally modify them
Object.freeze(result);
Object.freeze(result.cellChanges);
Object.freeze(result.contentChanges);
return result;
}
private _validateIndex(index: number): number {
index = index | 0;
if (index < 0) {
return 0;
} else if (index >= this._cells.length) {
return this._cells.length - 1;
} else {
return index;
}
}
private _validateRange(range: vscode.NotebookRange): vscode.NotebookRange {
let start = range.start | 0;
let end = range.end | 0;
if (start < 0) {
start = 0;
}
if (end > this._cells.length) {
end = this._cells.length;
}
return range.with({ start, end });
}
private _getCells(range: vscode.NotebookRange): ExtHostCell[] {
range = this._validateRange(range);
const result: ExtHostCell[] = [];
for (let i = range.start; i < range.end; i++) {
result.push(this._cells[i]);
}
return result;
}
private async _save(): Promise<boolean> {
if (this._disposed) {
return Promise.reject(new Error('Notebook has been closed'));
}
return this._proxy.$trySaveNotebook(this.uri);
}
private _spliceNotebookCells(splices: notebookCommon.NotebookCellTextModelSplice<extHostProtocol.NotebookCellDto>[], initialization: boolean, bucket: vscode.NotebookDocumentContentChange[] | undefined): void {
if (this._disposed) {
return;
}
const contentChangeEvents: RawContentChangeEvent[] = [];
const addedCellDocuments: IExtHostModelAddedData[] = [];
const removedCellDocuments: URI[] = [];
splices.reverse().forEach(splice => {
const cellDtos = splice[2];
const newCells = cellDtos.map(cell => {
const extCell = new ExtHostCell(this, this._textDocumentsAndEditors, cell);
if (!initialization) {
addedCellDocuments.push(ExtHostCell.asModelAddData(this.apiNotebook, cell));
}
return extCell;
});
const changeEvent = new RawContentChangeEvent(splice[0], splice[1], [], newCells);
const deletedItems = this._cells.splice(splice[0], splice[1], ...newCells);
for (const cell of deletedItems) {
removedCellDocuments.push(cell.uri);
changeEvent.deletedItems.push(cell.apiCell);
}
contentChangeEvents.push(changeEvent);
});
this._textDocumentsAndEditors.acceptDocumentsAndEditorsDelta({
addedDocuments: addedCellDocuments,
removedDocuments: removedCellDocuments
});
if (bucket) {
for (let changeEvent of contentChangeEvents) {
bucket.push(changeEvent.asApiEvent());
}
}
}
private _moveCell(index: number, newIdx: number, bucket: vscode.NotebookDocumentContentChange[]): void {
const cells = this._cells.splice(index, 1);
this._cells.splice(newIdx, 0, ...cells);
const changes = [
new RawContentChangeEvent(index, 1, cells.map(c => c.apiCell), []),
new RawContentChangeEvent(newIdx, 0, [], cells)
];
for (const change of changes) {
bucket.push(change.asApiEvent());
}
}
private _setCellOutputs(index: number, outputs: extHostProtocol.NotebookOutputDto[]): void {
const cell = this._cells[index];
cell.setOutputs(outputs);
}
private _setCellOutputItems(index: number, outputId: string, append: boolean, outputItems: extHostProtocol.NotebookOutputItemDto[]): void {
const cell = this._cells[index];
cell.setOutputItems(outputId, append, outputItems);
}
private _changeCellLanguage(index: number, newLanguageId: string): void {
const cell = this._cells[index];
if (cell.apiCell.document.languageId !== newLanguageId) {
this._textDocuments.$acceptModelLanguageChanged(cell.uri, newLanguageId);
}
}
private _changeCellMime(index: number, newMime: string | undefined): void {
const cell = this._cells[index];
cell.apiCell.mime = newMime;
}
private _changeCellMetadata(index: number, newMetadata: notebookCommon.NotebookCellMetadata): void {
const cell = this._cells[index];
cell.setMetadata(newMetadata);
}
private _changeCellInternalMetadata(index: number, newInternalMetadata: notebookCommon.NotebookCellInternalMetadata): void {
const cell = this._cells[index];
cell.setInternalMetadata(newInternalMetadata);
}
getCellFromApiCell(apiCell: vscode.NotebookCell): ExtHostCell | undefined {
return this._cells.find(cell => cell.apiCell === apiCell);
}
getCellFromIndex(index: number): ExtHostCell | undefined {
return this._cells[index];
}
getCell(cellHandle: number): ExtHostCell | undefined {
return this._cells.find(cell => cell.handle === cellHandle);
}
getCellIndex(cell: ExtHostCell): number {
return this._cells.indexOf(cell);
}
}
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