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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 { Emitter } from 'vs/base/common/event';
import { DisposableStore } from 'vs/base/common/lifecycle';
import { ResourceMap } from 'vs/base/common/map';
import { ExtensionIdentifier, IExtensionDescription } from 'vs/platform/extensions/common/extensions';
import { ILogService } from 'vs/platform/log/common/log';
import { ExtHostNotebookProxyKernelsShape, IMainContext, INotebookProxyKernelDto, MainContext, MainThreadNotebookProxyKernelsShape } from 'vs/workbench/api/common/extHost.protocol';
import { createKernelId, ExtHostNotebookKernels } from 'vs/workbench/api/common/extHostNotebookKernels';
import { checkProposedApiEnabled } from 'vs/workbench/services/extensions/common/extensions';
import * as vscode from 'vscode';
interface IProxyKernelData {
extensionId: ExtensionIdentifier;
controller: vscode.NotebookProxyController;
onDidChangeSelection: Emitter<{ selected: boolean; notebook: vscode.NotebookDocument }>;
associatedNotebooks: ResourceMap<boolean>;
}
export type SelectKernelReturnArgs = ControllerInfo | { notebookEditorId: string } | ControllerInfo & { notebookEditorId: string } | undefined;
type ControllerInfo = { id: string; extension: string };
export class ExtHostNotebookProxyKernels implements ExtHostNotebookProxyKernelsShape {
private readonly _proxy: MainThreadNotebookProxyKernelsShape;
private readonly _proxyKernelData: Map<number, IProxyKernelData> = new Map<number, IProxyKernelData>();
private _handlePool: number = 0;
private readonly _onDidChangeCellExecutionState = new Emitter<vscode.NotebookCellExecutionStateChangeEvent>();
readonly onDidChangeNotebookCellExecutionState = this._onDidChangeCellExecutionState.event;
constructor(
mainContext: IMainContext,
private readonly extHostNotebook: ExtHostNotebookKernels,
@ILogService private readonly _logService: ILogService
) {
this._proxy = mainContext.getProxy(MainContext.MainThreadNotebookProxyKernels);
}
createNotebookProxyController(extension: IExtensionDescription, id: string, viewType: string, label: string, handler: () => vscode.NotebookController | string | Thenable<vscode.NotebookController | string>): vscode.NotebookProxyController {
const handle = this._handlePool++;
let isDisposed = false;
const commandDisposables = new DisposableStore();
const onDidChangeSelection = new Emitter<{ selected: boolean; notebook: vscode.NotebookDocument }>();
const data: INotebookProxyKernelDto = {
id: createKernelId(extension.identifier, id),
notebookType: viewType,
extensionId: extension.identifier,
extensionLocation: extension.extensionLocation,
label: label || extension.identifier.value,
};
let _resolveHandler = handler;
this._proxy.$addProxyKernel(handle, data).catch(err => {
// this can happen when a kernel with that ID is already registered
console.log(err);
isDisposed = true;
});
let tokenPool = 0;
const _update = () => {
if (isDisposed) {
return;
}
const myToken = ++tokenPool;
Promise.resolve().then(() => {
if (myToken === tokenPool) {
this._proxy.$updateProxyKernel(handle, data);
}
});
};
// notebook documents that are associated to this controller
const associatedNotebooks = new ResourceMap<boolean>();
const controller: vscode.NotebookProxyController = {
get id() { return id; },
get notebookType() { return data.notebookType; },
onDidChangeSelectedNotebooks: onDidChangeSelection.event,
get label() {
return data.label;
},
set label(value) {
data.label = value ?? extension.displayName ?? extension.name;
_update();
},
get detail() {
return data.detail ?? '';
},
set detail(value) {
data.detail = value;
_update();
},
get description() {
return data.description ?? '';
},
set description(value) {
data.description = value;
_update();
},
get kind() {
checkProposedApiEnabled(extension, 'notebookControllerKind');
return data.kind ?? '';
},
set kind(value) {
checkProposedApiEnabled(extension, 'notebookControllerKind');
data.kind = value;
_update();
},
get resolveHandler() {
return _resolveHandler;
},
dispose: () => {
if (!isDisposed) {
this._logService.trace(`NotebookProxyController[${handle}], DISPOSED`);
isDisposed = true;
this._proxyKernelData.delete(handle);
commandDisposables.dispose();
onDidChangeSelection.dispose();
this._proxy.$removeProxyKernel(handle);
}
}
};
this._proxyKernelData.set(handle, {
extensionId: extension.identifier,
controller,
onDidChangeSelection,
associatedNotebooks
});
return controller;
}
async $resolveKernel(handle: number): Promise<string | null> {
const obj = this._proxyKernelData.get(handle);
if (!obj) {
// extension can dispose kernels in the meantime
return null;
}
const controller = await obj.controller.resolveHandler();
if (typeof controller === 'string') {
return controller;
} else {
return this.extHostNotebook.getIdByController(controller);
}
}
}
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