/
notebookEditorWidget.ts
1434 lines (1180 loc) · 51.1 KB
/
notebookEditorWidget.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 { getZoomLevel } from 'vs/base/browser/browser';
import * as DOM from 'vs/base/browser/dom';
import { IMouseWheelEvent, StandardMouseEvent } from 'vs/base/browser/mouseEvent';
import { CancellationTokenSource } from 'vs/base/common/cancellation';
import { Color, RGBA } from 'vs/base/common/color';
import { onUnexpectedError } from 'vs/base/common/errors';
import { Emitter, Event } from 'vs/base/common/event';
import { combinedDisposable, DisposableStore, Disposable, IDisposable, toDisposable } from 'vs/base/common/lifecycle';
import 'vs/css!./media/notebook';
import { ICodeEditor } from 'vs/editor/browser/editorBrowser';
import { IEditorOptions } from 'vs/editor/common/config/editorOptions';
import { BareFontInfo } from 'vs/editor/common/config/fontInfo';
import { IPosition, Position } from 'vs/editor/common/core/position';
import { Range } from 'vs/editor/common/core/range';
import { IEditor } from 'vs/editor/common/editorCommon';
import { IReadonlyTextBuffer } from 'vs/editor/common/model';
import * as nls from 'vs/nls';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { IContextKey, IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
import { IResourceEditorInput } from 'vs/platform/editor/common/editor';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
import { contrastBorder, editorBackground, focusBorder, foreground, registerColor, textBlockQuoteBackground, textBlockQuoteBorder, textLinkActiveForeground, textLinkForeground, textPreformatForeground } from 'vs/platform/theme/common/colorRegistry';
import { registerThemingParticipant } from 'vs/platform/theme/common/themeService';
import { EditorMemento } from 'vs/workbench/browser/parts/editor/baseEditor';
import { EditorOptions, IEditorMemento } from 'vs/workbench/common/editor';
import { CELL_MARGIN, CELL_RUN_GUTTER, EDITOR_BOTTOM_PADDING, EDITOR_TOP_MARGIN, EDITOR_TOP_PADDING, SCROLLABLE_ELEMENT_PADDING_TOP } from 'vs/workbench/contrib/notebook/browser/constants';
import { CellEditState, CellFocusMode, ICellRange, ICellViewModel, IEditableCellViewModel, INotebookCellList, INotebookEditor, INotebookEditorContribution, INotebookEditorMouseEvent, NotebookLayoutInfo, NOTEBOOK_EDITOR_EDITABLE, NOTEBOOK_EDITOR_EXECUTING_NOTEBOOK, NOTEBOOK_EDITOR_FOCUSED, NOTEBOOK_EDITOR_RUNNABLE, NOTEBOOK_HAS_MULTIPLE_KERNELS } from 'vs/workbench/contrib/notebook/browser/notebookBrowser';
import { NotebookEditorExtensionsRegistry } from 'vs/workbench/contrib/notebook/browser/notebookEditorExtensions';
import { NotebookCellList } from 'vs/workbench/contrib/notebook/browser/view/notebookCellList';
import { OutputRenderer } from 'vs/workbench/contrib/notebook/browser/view/output/outputRenderer';
import { BackLayerWebView } from 'vs/workbench/contrib/notebook/browser/view/renderers/backLayerWebView';
import { CellDragAndDropController, CodeCellRenderer, MarkdownCellRenderer, NotebookCellListDelegate } from 'vs/workbench/contrib/notebook/browser/view/renderers/cellRenderer';
import { CodeCellViewModel } from 'vs/workbench/contrib/notebook/browser/viewModel/codeCellViewModel';
import { NotebookEventDispatcher, NotebookLayoutChangedEvent } from 'vs/workbench/contrib/notebook/browser/viewModel/eventDispatcher';
import { CellViewModel, IModelDecorationsChangeAccessor, INotebookEditorViewState, NotebookViewModel } from 'vs/workbench/contrib/notebook/browser/viewModel/notebookViewModel';
import { CellKind, IProcessedOutput, INotebookKernelInfo, INotebookKernelInfoDto } from 'vs/workbench/contrib/notebook/common/notebookCommon';
import { INotebookService } from 'vs/workbench/contrib/notebook/common/notebookService';
import { Webview } from 'vs/workbench/contrib/webview/browser/webview';
import { getExtraColor } from 'vs/workbench/contrib/welcome/walkThrough/common/walkThroughUtils';
import { IEditorGroupsService } from 'vs/workbench/services/editor/common/editorGroupsService';
import { ILayoutService } from 'vs/platform/layout/browser/layoutService';
import { generateUuid } from 'vs/base/common/uuid';
import { Memento, MementoObject } from 'vs/workbench/common/memento';
import { NotebookTextModel } from 'vs/workbench/contrib/notebook/common/model/notebookTextModel';
import { URI } from 'vs/base/common/uri';
const $ = DOM.$;
export class NotebookEditorOptions extends EditorOptions {
readonly cellOptions?: IResourceEditorInput;
constructor(options: Partial<NotebookEditorOptions>) {
super();
this.overwrite(options);
this.cellOptions = options.cellOptions;
}
with(options: Partial<NotebookEditorOptions>): NotebookEditorOptions {
return new NotebookEditorOptions({ ...this, ...options });
}
}
export class NotebookEditorWidget extends Disposable implements INotebookEditor {
static readonly ID: string = 'workbench.editor.notebook';
private static readonly EDITOR_MEMENTOS = new Map<string, EditorMemento<any>>();
private overlayContainer!: HTMLElement;
private body!: HTMLElement;
private webview: BackLayerWebView | null = null;
private webviewTransparentCover: HTMLElement | null = null;
private list: INotebookCellList | undefined;
private dndController: CellDragAndDropController | null = null;
private renderedEditors: Map<ICellViewModel, ICodeEditor | undefined> = new Map();
private eventDispatcher: NotebookEventDispatcher | undefined;
private notebookViewModel: NotebookViewModel | undefined;
private localStore: DisposableStore = this._register(new DisposableStore());
private fontInfo: BareFontInfo | undefined;
private dimension: DOM.Dimension | null = null;
private shadowElementViewInfo: { height: number, width: number, top: number; left: number; } | null = null;
private editorFocus: IContextKey<boolean> | null = null;
private editorEditable: IContextKey<boolean> | null = null;
private editorRunnable: IContextKey<boolean> | null = null;
private editorExecutingNotebook: IContextKey<boolean> | null = null;
private notebookHasMultipleKernels: IContextKey<boolean> | null = null;
private outputRenderer: OutputRenderer;
protected readonly _contributions: { [key: string]: INotebookEditorContribution; };
private scrollBeyondLastLine: boolean;
private readonly memento: Memento;
private _isDisposed: boolean = false;
private readonly _onDidFocusWidget = this._register(new Emitter<void>());
public get onDidFocus(): Event<any> { return this._onDidFocusWidget.event; }
constructor(
@IInstantiationService private readonly instantiationService: IInstantiationService,
@IStorageService storageService: IStorageService,
@INotebookService private notebookService: INotebookService,
@IConfigurationService private readonly configurationService: IConfigurationService,
@IContextKeyService readonly contextKeyService: IContextKeyService,
@ILayoutService private readonly _layoutService: ILayoutService
) {
super();
this.memento = new Memento(NotebookEditorWidget.ID, storageService);
this.outputRenderer = new OutputRenderer(this, this.instantiationService);
this._contributions = {};
this.scrollBeyondLastLine = this.configurationService.getValue<boolean>('editor.scrollBeyondLastLine');
this.configurationService.onDidChangeConfiguration(e => {
if (e.affectsConfiguration('editor.scrollBeyondLastLine')) {
this.scrollBeyondLastLine = this.configurationService.getValue<boolean>('editor.scrollBeyondLastLine');
if (this.dimension) {
this.layout(this.dimension);
}
}
});
this.notebookService.addNotebookEditor(this);
}
private _uuid = generateUuid();
public getId(): string {
return this._uuid;
}
private readonly _onDidChangeModel = new Emitter<NotebookTextModel | undefined>();
readonly onDidChangeModel: Event<NotebookTextModel | undefined> = this._onDidChangeModel.event;
private readonly _onDidFocusEditorWidget = new Emitter<void>();
readonly onDidFocusEditorWidget = this._onDidFocusEditorWidget.event;
set viewModel(newModel: NotebookViewModel | undefined) {
this.notebookViewModel = newModel;
this._onDidChangeModel.fire(newModel?.notebookDocument);
}
get viewModel() {
return this.notebookViewModel;
}
get uri() {
return this.notebookViewModel?.uri;
}
get textModel() {
return this.notebookViewModel?.notebookDocument;
}
hasModel() {
return !!this.notebookViewModel;
}
private _activeKernel: INotebookKernelInfo | undefined = undefined;
private readonly _onDidChangeKernel = new Emitter<void>();
readonly onDidChangeKernel: Event<void> = this._onDidChangeKernel.event;
get activeKernel() {
return this._activeKernel;
}
set activeKernel(kernel: INotebookKernelInfo | undefined) {
this._activeKernel = kernel;
this._onDidChangeKernel.fire();
}
private readonly _onDidChangeActiveEditor = this._register(new Emitter<this>());
readonly onDidChangeActiveEditor: Event<this> = this._onDidChangeActiveEditor.event;
get activeCodeEditor(): IEditor | undefined {
const [focused] = this.list!.getFocusedElements();
return this.renderedEditors.get(focused);
}
//#region Editor Core
protected getEditorMemento<T>(editorGroupService: IEditorGroupsService, key: string, limit: number = 10): IEditorMemento<T> {
const mementoKey = `${NotebookEditorWidget.ID}${key}`;
let editorMemento = NotebookEditorWidget.EDITOR_MEMENTOS.get(mementoKey);
if (!editorMemento) {
editorMemento = new EditorMemento(NotebookEditorWidget.ID, key, this.getMemento(StorageScope.WORKSPACE), limit, editorGroupService);
NotebookEditorWidget.EDITOR_MEMENTOS.set(mementoKey, editorMemento);
}
return editorMemento;
}
protected getMemento(scope: StorageScope): MementoObject {
return this.memento.getMemento(scope);
}
public get isNotebookEditor() {
return true;
}
updateEditorFocus() {
// Note - focus going to the webview will fire 'blur', but the webview element will be
// a descendent of the notebook editor root.
this.editorFocus?.set(DOM.isAncestor(document.activeElement, this.overlayContainer));
}
hasFocus() {
return this.editorFocus?.get() || false;
}
createEditor(): void {
this.overlayContainer = document.createElement('div');
const id = generateUuid();
this.overlayContainer.id = `notebook-${id}`;
this.overlayContainer.className = 'notebookOverlay';
DOM.addClass(this.overlayContainer, 'notebook-editor');
this.overlayContainer.style.visibility = 'hidden';
this._layoutService.container.appendChild(this.overlayContainer);
this.createBody(this.overlayContainer);
this.generateFontInfo();
this.editorFocus = NOTEBOOK_EDITOR_FOCUSED.bindTo(this.contextKeyService);
this.editorFocus.set(true);
this.editorEditable = NOTEBOOK_EDITOR_EDITABLE.bindTo(this.contextKeyService);
this.editorEditable.set(true);
this.editorRunnable = NOTEBOOK_EDITOR_RUNNABLE.bindTo(this.contextKeyService);
this.editorRunnable.set(true);
this.editorExecutingNotebook = NOTEBOOK_EDITOR_EXECUTING_NOTEBOOK.bindTo(this.contextKeyService);
this.notebookHasMultipleKernels = NOTEBOOK_HAS_MULTIPLE_KERNELS.bindTo(this.contextKeyService);
this.notebookHasMultipleKernels.set(false);
const contributions = NotebookEditorExtensionsRegistry.getEditorContributions();
for (const desc of contributions) {
try {
const contribution = this.instantiationService.createInstance(desc.ctor, this);
this._contributions[desc.id] = contribution;
} catch (err) {
onUnexpectedError(err);
}
}
}
private generateFontInfo(): void {
const editorOptions = this.configurationService.getValue<IEditorOptions>('editor');
this.fontInfo = BareFontInfo.createFromRawSettings(editorOptions, getZoomLevel());
}
private createBody(parent: HTMLElement): void {
this.body = document.createElement('div');
DOM.addClass(this.body, 'cell-list-container');
this.createCellList();
DOM.append(parent, this.body);
}
private createCellList(): void {
DOM.addClass(this.body, 'cell-list-container');
this.dndController = this._register(new CellDragAndDropController(this, this.body));
const getScopedContextKeyService = (container?: HTMLElement) => this.list!.contextKeyService.createScoped(container);
const renderers = [
this.instantiationService.createInstance(CodeCellRenderer, this, this.renderedEditors, this.dndController, getScopedContextKeyService),
this.instantiationService.createInstance(MarkdownCellRenderer, this, this.dndController, this.renderedEditors, getScopedContextKeyService),
];
this.list = this.instantiationService.createInstance(
NotebookCellList,
'NotebookCellList',
this.body,
this.instantiationService.createInstance(NotebookCellListDelegate),
renderers,
this.contextKeyService,
{
setRowLineHeight: false,
setRowHeight: false,
supportDynamicHeights: true,
horizontalScrolling: false,
keyboardSupport: false,
mouseSupport: true,
multipleSelectionSupport: false,
enableKeyboardNavigation: true,
additionalScrollHeight: 0,
transformOptimization: false,
styleController: (_suffix: string) => { return this.list!; },
overrideStyles: {
listBackground: editorBackground,
listActiveSelectionBackground: editorBackground,
listActiveSelectionForeground: foreground,
listFocusAndSelectionBackground: editorBackground,
listFocusAndSelectionForeground: foreground,
listFocusBackground: editorBackground,
listFocusForeground: foreground,
listHoverForeground: foreground,
listHoverBackground: editorBackground,
listHoverOutline: focusBorder,
listFocusOutline: focusBorder,
listInactiveSelectionBackground: editorBackground,
listInactiveSelectionForeground: foreground,
listInactiveFocusBackground: editorBackground,
listInactiveFocusOutline: editorBackground,
},
accessibilityProvider: {
getAriaLabel() { return null; },
getWidgetAriaLabel() {
return nls.localize('notebookTreeAriaLabel', "Notebook");
}
}
},
);
this.dndController.setList(this.list);
// create Webview
this._register(this.list);
this._register(combinedDisposable(...renderers));
// transparent cover
this.webviewTransparentCover = DOM.append(this.list.rowsContainer, $('.webview-cover'));
this.webviewTransparentCover.style.display = 'none';
this._register(DOM.addStandardDisposableGenericMouseDownListner(this.overlayContainer, (e: StandardMouseEvent) => {
if (DOM.hasClass(e.target, 'slider') && this.webviewTransparentCover) {
this.webviewTransparentCover.style.display = 'block';
}
}));
this._register(DOM.addStandardDisposableGenericMouseUpListner(this.overlayContainer, () => {
if (this.webviewTransparentCover) {
// no matter when
this.webviewTransparentCover.style.display = 'none';
}
}));
this._register(this.list.onMouseDown(e => {
if (e.element) {
this._onMouseDown.fire({ event: e.browserEvent, target: e.element });
}
}));
this._register(this.list.onMouseUp(e => {
if (e.element) {
this._onMouseUp.fire({ event: e.browserEvent, target: e.element });
}
}));
this._register(this.list.onDidChangeFocus(_e => this._onDidChangeActiveEditor.fire(this)));
const widgetFocusTracker = DOM.trackFocus(this.getDomNode());
this._register(widgetFocusTracker);
this._register(widgetFocusTracker.onDidFocus(() => this._onDidFocusWidget.fire()));
}
getDomNode() {
return this.overlayContainer;
}
onWillHide() {
this.editorFocus?.set(false);
this.overlayContainer.style.visibility = 'hidden';
this.overlayContainer.style.display = 'none';
}
getInnerWebview(): Webview | undefined {
return this.webview?.webview;
}
focus() {
this.editorFocus?.set(true);
this.list?.domFocus();
this._onDidFocusEditorWidget.fire();
}
async setModel(textModel: NotebookTextModel, viewState: INotebookEditorViewState | undefined, options: EditorOptions | undefined): Promise<void> {
if (this.notebookViewModel === undefined || !this.notebookViewModel.equal(textModel)) {
this.detachModel();
await this.attachModel(textModel, viewState);
}
// clear state
this.dndController?.clearGlobalDragState();
this._setKernels(textModel);
this.localStore.add(this.notebookService.onDidChangeKernels(() => {
if (this.activeKernel === undefined) {
this._setKernels(textModel);
}
}));
// reveal cell if editor options tell to do so
if (options instanceof NotebookEditorOptions && options.cellOptions) {
const cellOptions = options.cellOptions;
const cell = this.notebookViewModel!.viewCells.find(cell => cell.uri.toString() === cellOptions.resource.toString());
if (cell) {
this.selectElement(cell);
this.revealInCenterIfOutsideViewport(cell);
const editor = this.renderedEditors.get(cell)!;
if (editor) {
if (cellOptions.options?.selection) {
const { selection } = cellOptions.options;
editor.setSelection({
...selection,
endLineNumber: selection.endLineNumber || selection.startLineNumber,
endColumn: selection.endColumn || selection.startColumn
});
}
if (!cellOptions.options?.preserveFocus) {
editor.focus();
}
}
}
}
}
private detachModel() {
this.localStore.clear();
this.list?.detachViewModel();
this.viewModel?.dispose();
// avoid event
this.notebookViewModel = undefined;
// this.webview?.clearInsets();
// this.webview?.clearPreloadsCache();
this.webview?.dispose();
this.webview?.element.remove();
this.webview = null;
this.list?.clear();
}
private _setKernels(textModel: NotebookTextModel) {
const provider = this.notebookService.getContributedNotebookProviders(this.viewModel!.uri)[0];
const availableKernels = this.notebookService.getContributedNotebookKernels(textModel.viewType, textModel.uri);
if (provider.kernel && availableKernels.length > 0) {
this.notebookHasMultipleKernels!.set(true);
} else if (availableKernels.length > 1) {
this.notebookHasMultipleKernels!.set(true);
} else {
this.notebookHasMultipleKernels!.set(false);
}
if (provider && provider.kernel) {
// it has a builtin kernel, don't automatically choose a kernel
this.loadKernelPreloads(provider.providerExtensionLocation, provider.kernel);
return;
}
// the provider doesn't have a builtin kernel, choose a kernel
this.activeKernel = availableKernels[0];
if (this.activeKernel) {
this.loadKernelPreloads(this.activeKernel.extensionLocation, this.activeKernel);
}
}
private loadKernelPreloads(extensionLocation: URI, kernel: INotebookKernelInfoDto) {
if (kernel.preloads) {
this.webview?.updateKernelPreloads([extensionLocation], kernel.preloads.map(preload => URI.revive(preload)));
}
}
private updateForMetadata(): void {
this.editorEditable?.set(!!this.viewModel!.metadata?.editable);
this.editorRunnable?.set(!!this.viewModel!.metadata?.runnable);
DOM.toggleClass(this.overlayContainer, 'notebook-editor-editable', !!this.viewModel!.metadata?.editable);
DOM.toggleClass(this.getDomNode(), 'notebook-editor-editable', !!this.viewModel!.metadata?.editable);
}
private async createWebview(id: string, document: URI): Promise<void> {
this.webview = this.instantiationService.createInstance(BackLayerWebView, this, id, document);
await this.webview.waitForInitialization();
this.webview.webview.onDidBlur(() => this.updateEditorFocus());
this.webview.webview.onDidFocus(() => {
this.updateEditorFocus();
this._onDidFocusWidget.fire();
});
this.localStore.add(this.webview.onMessage(message => {
if (this.viewModel) {
this.notebookService.onDidReceiveMessage(this.viewModel.viewType, this.getId(), message);
}
}));
this.list?.rowsContainer.insertAdjacentElement('afterbegin', this.webview.element);
}
private async attachModel(textModel: NotebookTextModel, viewState: INotebookEditorViewState | undefined) {
await this.createWebview(this.getId(), textModel.uri);
this.eventDispatcher = new NotebookEventDispatcher();
this.viewModel = this.instantiationService.createInstance(NotebookViewModel, textModel.viewType, textModel, this.eventDispatcher, this.getLayoutInfo());
this.eventDispatcher.emit([new NotebookLayoutChangedEvent({ width: true, fontInfo: true }, this.getLayoutInfo())]);
this.updateForMetadata();
this.localStore.add(this.eventDispatcher.onDidChangeMetadata(() => {
this.updateForMetadata();
}));
// restore view states, including contributions
{
// restore view state
this.viewModel.restoreEditorViewState(viewState);
// contribution state restore
const contributionsState = viewState?.contributionsState || {};
const keys = Object.keys(this._contributions);
for (let i = 0, len = keys.length; i < len; i++) {
const id = keys[i];
const contribution = this._contributions[id];
if (typeof contribution.restoreViewState === 'function') {
contribution.restoreViewState(contributionsState[id]);
}
}
}
this.webview?.updateRendererPreloads(this.viewModel.renderers);
this.localStore.add(this.list!.onWillScroll(e => {
this.webview!.updateViewScrollTop(-e.scrollTop, []);
this.webviewTransparentCover!.style.top = `${e.scrollTop}px`;
}));
this.localStore.add(this.list!.onDidChangeContentHeight(() => {
DOM.scheduleAtNextAnimationFrame(() => {
const scrollTop = this.list?.scrollTop || 0;
const scrollHeight = this.list?.scrollHeight || 0;
this.webview!.element.style.height = `${scrollHeight}px`;
if (this.webview?.insetMapping) {
let updateItems: { cell: CodeCellViewModel, output: IProcessedOutput, cellTop: number }[] = [];
let removedItems: IProcessedOutput[] = [];
this.webview?.insetMapping.forEach((value, key) => {
const cell = value.cell;
const viewIndex = this.list?.getViewIndex(cell);
if (viewIndex === undefined) {
return;
}
if (cell.outputs.indexOf(key) < 0) {
// output is already gone
removedItems.push(key);
}
const cellTop = this.list?.getAbsoluteTopOfElement(cell) || 0;
if (this.webview!.shouldUpdateInset(cell, key, cellTop)) {
updateItems.push({
cell: cell,
output: key,
cellTop: cellTop
});
}
});
removedItems.forEach(output => this.webview?.removeInset(output));
if (updateItems.length) {
this.webview?.updateViewScrollTop(-scrollTop, updateItems);
}
}
});
}));
this.list!.attachViewModel(this.viewModel);
this.localStore.add(this.list!.onDidRemoveOutput(output => {
this.removeInset(output);
}));
this.localStore.add(this.list!.onDidHideOutput(output => {
this.hideInset(output);
}));
this.list!.layout();
this.dndController?.clearGlobalDragState();
// restore list state at last, it must be after list layout
this.restoreListViewState(viewState);
}
private restoreListViewState(viewState: INotebookEditorViewState | undefined): void {
if (viewState?.scrollPosition !== undefined) {
this.list!.scrollTop = viewState!.scrollPosition.top;
this.list!.scrollLeft = viewState!.scrollPosition.left;
} else {
this.list!.scrollTop = 0;
this.list!.scrollLeft = 0;
}
const focusIdx = typeof viewState?.focus === 'number' ? viewState.focus : 0;
if (focusIdx < this.list!.length) {
this.list!.setFocus([focusIdx]);
this.list!.setSelection([focusIdx]);
} else if (this.list!.length > 0) {
this.list!.setFocus([0]);
}
if (viewState?.editorFocused) {
this.list?.focusView();
const cell = this.notebookViewModel?.viewCells[focusIdx];
if (cell) {
cell.focusMode = CellFocusMode.Editor;
}
}
}
getEditorViewState(): INotebookEditorViewState {
const state = this.notebookViewModel?.getEditorViewState();
if (!state) {
return {
editingCells: {},
editorViewStates: {}
};
}
if (this.list) {
state.scrollPosition = { left: this.list.scrollLeft, top: this.list.scrollTop };
let cellHeights: { [key: number]: number } = {};
for (let i = 0; i < this.viewModel!.length; i++) {
const elm = this.viewModel!.viewCells[i] as CellViewModel;
if (elm.cellKind === CellKind.Code) {
cellHeights[i] = elm.layoutInfo.totalHeight;
} else {
cellHeights[i] = 0;
}
}
state.cellTotalHeights = cellHeights;
const focus = this.list.getFocus()[0];
if (typeof focus === 'number') {
const element = this.notebookViewModel!.viewCells[focus];
const itemDOM = this.list?.domElementOfElement(element!);
let editorFocused = false;
if (document.activeElement && itemDOM && itemDOM.contains(document.activeElement)) {
editorFocused = true;
}
state.editorFocused = editorFocused;
state.focus = focus;
}
}
// Save contribution view states
const contributionsState: { [key: string]: any } = {};
const keys = Object.keys(this._contributions);
for (const id of keys) {
const contribution = this._contributions[id];
if (typeof contribution.saveViewState === 'function') {
contributionsState[id] = contribution.saveViewState();
}
}
state.contributionsState = contributionsState;
return state;
}
// private saveEditorViewState(input: NotebookEditorInput): void {
// if (this.group && this.notebookViewModel) {
// }
// }
// private loadTextEditorViewState(): INotebookEditorViewState | undefined {
// return this.editorMemento.loadEditorState(this.group, input.resource);
// }
layout(dimension: DOM.Dimension, shadowElement?: HTMLElement): void {
if (!shadowElement && this.shadowElementViewInfo === null) {
this.dimension = dimension;
return;
}
if (shadowElement) {
const containerRect = shadowElement.getBoundingClientRect();
this.shadowElementViewInfo = {
height: containerRect.height,
width: containerRect.width,
top: containerRect.top,
left: containerRect.left
};
}
this.dimension = new DOM.Dimension(dimension.width, dimension.height);
DOM.size(this.body, dimension.width, dimension.height);
this.list?.updateOptions({ additionalScrollHeight: this.scrollBeyondLastLine ? dimension.height - SCROLLABLE_ELEMENT_PADDING_TOP : 0 });
this.list?.layout(dimension.height - SCROLLABLE_ELEMENT_PADDING_TOP, dimension.width);
this.overlayContainer.style.visibility = 'visible';
this.overlayContainer.style.display = 'block';
this.overlayContainer.style.position = 'absolute';
this.overlayContainer.style.top = `${this.shadowElementViewInfo!.top}px`;
this.overlayContainer.style.left = `${this.shadowElementViewInfo!.left}px`;
this.overlayContainer.style.width = `${dimension ? dimension.width : this.shadowElementViewInfo!.width}px`;
this.overlayContainer.style.height = `${dimension ? dimension.height : this.shadowElementViewInfo!.height}px`;
if (this.webviewTransparentCover) {
this.webviewTransparentCover.style.height = `${dimension.height}px`;
this.webviewTransparentCover.style.width = `${dimension.width}px`;
}
this.eventDispatcher?.emit([new NotebookLayoutChangedEvent({ width: true, fontInfo: true }, this.getLayoutInfo())]);
}
// protected saveState(): void {
// if (this.input instanceof NotebookEditorInput) {
// this.saveEditorViewState(this.input);
// }
// super.saveState();
// }
//#endregion
//#region Editor Features
selectElement(cell: ICellViewModel) {
this.list?.selectElement(cell);
// this.viewModel!.selectionHandles = [cell.handle];
}
revealInView(cell: ICellViewModel) {
this.list?.revealElementInView(cell);
}
revealInCenterIfOutsideViewport(cell: ICellViewModel) {
this.list?.revealElementInCenterIfOutsideViewport(cell);
}
revealInCenter(cell: ICellViewModel) {
this.list?.revealElementInCenter(cell);
}
revealLineInView(cell: ICellViewModel, line: number): void {
this.list?.revealElementLineInView(cell, line);
}
revealLineInCenter(cell: ICellViewModel, line: number) {
this.list?.revealElementLineInCenter(cell, line);
}
revealLineInCenterIfOutsideViewport(cell: ICellViewModel, line: number) {
this.list?.revealElementLineInCenterIfOutsideViewport(cell, line);
}
revealRangeInView(cell: ICellViewModel, range: Range): void {
this.list?.revealElementRangeInView(cell, range);
}
revealRangeInCenter(cell: ICellViewModel, range: Range): void {
this.list?.revealElementRangeInCenter(cell, range);
}
revealRangeInCenterIfOutsideViewport(cell: ICellViewModel, range: Range): void {
this.list?.revealElementRangeInCenterIfOutsideViewport(cell, range);
}
setCellSelection(cell: ICellViewModel, range: Range): void {
this.list?.setCellSelection(cell, range);
}
changeDecorations(callback: (changeAccessor: IModelDecorationsChangeAccessor) => any): any {
return this.notebookViewModel?.changeDecorations(callback);
}
setHiddenAreas(_ranges: ICellRange[]): boolean {
return this.list!.setHiddenAreas(_ranges, true);
}
//#endregion
//#region Mouse Events
private readonly _onMouseUp: Emitter<INotebookEditorMouseEvent> = this._register(new Emitter<INotebookEditorMouseEvent>());
public readonly onMouseUp: Event<INotebookEditorMouseEvent> = this._onMouseUp.event;
private readonly _onMouseDown: Emitter<INotebookEditorMouseEvent> = this._register(new Emitter<INotebookEditorMouseEvent>());
public readonly onMouseDown: Event<INotebookEditorMouseEvent> = this._onMouseDown.event;
private pendingLayouts = new WeakMap<ICellViewModel, IDisposable>();
//#endregion
//#region Cell operations
async layoutNotebookCell(cell: ICellViewModel, height: number): Promise<void> {
const viewIndex = this.list!.getViewIndex(cell);
if (viewIndex === undefined) {
// the cell is hidden
return;
}
let relayout = (cell: ICellViewModel, height: number) => {
this.list?.updateElementHeight2(cell, height);
};
if (this.pendingLayouts.has(cell)) {
this.pendingLayouts.get(cell)!.dispose();
}
let r: () => void;
const layoutDisposable = DOM.scheduleAtNextAnimationFrame(() => {
if (this._isDisposed) {
return;
}
this.pendingLayouts.delete(cell);
relayout(cell, height);
r();
});
this.pendingLayouts.set(cell, toDisposable(() => {
layoutDisposable.dispose();
r();
}));
return new Promise(resolve => { r = resolve; });
}
insertNotebookCell(cell: ICellViewModel | undefined, type: CellKind, direction: 'above' | 'below' = 'above', initialText: string = '', ui: boolean = false): CellViewModel | null {
if (!this.notebookViewModel!.metadata.editable) {
return null;
}
const newLanguages = this.notebookViewModel!.languages;
const language = (type === CellKind.Code && newLanguages && newLanguages.length) ? newLanguages[0] : 'markdown';
const index = cell ? this.notebookViewModel!.getCellIndex(cell) : 0;
const nextIndex = ui ? this.notebookViewModel!.getNextVisibleCellIndex(index) : index + 1;
const insertIndex = cell ?
(direction === 'above' ? index : nextIndex) :
index;
const newCell = this.notebookViewModel!.createCell(insertIndex, initialText.split(/\r?\n/g), language, type, true);
return newCell;
}
private pushIfAbsent(positions: IPosition[], p: IPosition) {
const last = positions.length > 0 ? positions[positions.length - 1] : undefined;
if (!last || last.lineNumber !== p.lineNumber || last.column !== p.column) {
positions.push(p);
}
}
/**
* Add split point at the beginning and the end;
* Move end of line split points to the beginning of the next line;
* Avoid duplicate split points
*/
private splitPointsToBoundaries(splitPoints: IPosition[], textBuffer: IReadonlyTextBuffer): IPosition[] | null {
const boundaries: IPosition[] = [];
const lineCnt = textBuffer.getLineCount();
const getLineLen = (lineNumber: number) => {
return textBuffer.getLineLength(lineNumber);
};
// split points need to be sorted
splitPoints = splitPoints.sort((l, r) => {
const lineDiff = l.lineNumber - r.lineNumber;
const columnDiff = l.column - r.column;
return lineDiff !== 0 ? lineDiff : columnDiff;
});
// eat-up any split point at the beginning, i.e. we ignore the split point at the very beginning
this.pushIfAbsent(boundaries, new Position(1, 1));
for (let sp of splitPoints) {
if (getLineLen(sp.lineNumber) + 1 === sp.column && sp.lineNumber < lineCnt) {
sp = new Position(sp.lineNumber + 1, 1);
}
this.pushIfAbsent(boundaries, sp);
}
// eat-up any split point at the beginning, i.e. we ignore the split point at the very end
this.pushIfAbsent(boundaries, new Position(lineCnt, getLineLen(lineCnt) + 1));
// if we only have two then they describe the whole range and nothing needs to be split
return boundaries.length > 2 ? boundaries : null;
}
private computeCellLinesContents(cell: IEditableCellViewModel, splitPoints: IPosition[]): string[] | null {
const rangeBoundaries = this.splitPointsToBoundaries(splitPoints, cell.textBuffer);
if (!rangeBoundaries) {
return null;
}
const newLineModels: string[] = [];
for (let i = 1; i < rangeBoundaries.length; i++) {
const start = rangeBoundaries[i - 1];
const end = rangeBoundaries[i];
newLineModels.push(cell.textModel.getValueInRange(new Range(start.lineNumber, start.column, end.lineNumber, end.column)));
}
return newLineModels;
}
async splitNotebookCell(cell: ICellViewModel): Promise<CellViewModel[] | null> {
if (!this.notebookViewModel!.metadata.editable) {
return null;
}
let splitPoints = cell.getSelectionsStartPosition();
if (splitPoints && splitPoints.length > 0) {
await cell.resolveTextModel();
if (!cell.hasModel()) {
return null;
}
let newLinesContents = this.computeCellLinesContents(cell, splitPoints);
if (newLinesContents) {
// update the contents of the first cell
cell.textModel.applyEdits([
{ range: cell.textModel.getFullModelRange(), text: newLinesContents[0] }
], true);
// create new cells based on the new text models
const language = cell.model.language;
const kind = cell.cellKind;
let insertIndex = this.notebookViewModel!.getCellIndex(cell) + 1;
const newCells = [];
for (let j = 1; j < newLinesContents.length; j++, insertIndex++) {
newCells.push(this.notebookViewModel!.createCell(insertIndex, newLinesContents[j], language, kind, true));
}
return newCells;
}
}
return null;
}
async joinNotebookCells(cell: ICellViewModel, direction: 'above' | 'below', constraint?: CellKind): Promise<ICellViewModel | null> {
if (!this.notebookViewModel!.metadata.editable) {
return null;
}
if (constraint && cell.cellKind !== constraint) {
return null;
}
const index = this.notebookViewModel!.getCellIndex(cell);
if (index === 0 && direction === 'above') {
return null;
}
if (index === this.notebookViewModel!.length - 1 && direction === 'below') {
return null;
}
if (direction === 'above') {
const above = this.notebookViewModel!.viewCells[index - 1];
if (constraint && above.cellKind !== constraint) {
return null;
}
await above.resolveTextModel();
if (!above.hasModel()) {
return null;
}
const insertContent = cell.getText();
const aboveCellLineCount = above.textModel.getLineCount();
const aboveCellLastLineEndColumn = above.textModel.getLineLength(aboveCellLineCount);
above.textModel.applyEdits([
{ range: new Range(aboveCellLineCount, aboveCellLastLineEndColumn + 1, aboveCellLineCount, aboveCellLastLineEndColumn + 1), text: insertContent }
]);
await this.deleteNotebookCell(cell);
return above;
} else {
const below = this.notebookViewModel!.viewCells[index + 1];
if (constraint && below.cellKind !== constraint) {
return null;
}
await cell.resolveTextModel();
if (!cell.hasModel()) {
return null;
}
const insertContent = below.getText();
const cellLineCount = cell.textModel.getLineCount();
const cellLastLineEndColumn = cell.textModel.getLineLength(cellLineCount);
cell.textModel.applyEdits([
{ range: new Range(cellLineCount, cellLastLineEndColumn + 1, cellLineCount, cellLastLineEndColumn + 1), text: insertContent }
]);
await this.deleteNotebookCell(below);
return cell;
}
}
async deleteNotebookCell(cell: ICellViewModel): Promise<boolean> {
if (!this.notebookViewModel!.metadata.editable) {
return false;
}
const index = this.notebookViewModel!.getCellIndex(cell);
this.notebookViewModel!.deleteCell(index, true);
return true;
}