mirror of
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Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'
This commit is contained in:
Joe Previte
302
lib/vscode/src/vs/workbench/api/browser/mainThreadDocuments.ts
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302
lib/vscode/src/vs/workbench/api/browser/mainThreadDocuments.ts
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { toErrorMessage } from 'vs/base/common/errorMessage';
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import { IReference, dispose, Disposable } from 'vs/base/common/lifecycle';
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import { Schemas } from 'vs/base/common/network';
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import { URI, UriComponents } from 'vs/base/common/uri';
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import { ITextModel } from 'vs/editor/common/model';
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import { IModelService, shouldSynchronizeModel } from 'vs/editor/common/services/modelService';
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import { ITextModelService } from 'vs/editor/common/services/resolverService';
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import { IFileService, FileOperation } from 'vs/platform/files/common/files';
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import { MainThreadDocumentsAndEditors } from 'vs/workbench/api/browser/mainThreadDocumentsAndEditors';
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import { ExtHostContext, ExtHostDocumentsShape, IExtHostContext, MainThreadDocumentsShape } from 'vs/workbench/api/common/extHost.protocol';
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import { ITextEditorModel } from 'vs/workbench/common/editor';
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import { ITextFileService } from 'vs/workbench/services/textfile/common/textfiles';
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import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/common/environmentService';
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import { toLocalResource, extUri, IExtUri } from 'vs/base/common/resources';
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import { IWorkingCopyFileService } from 'vs/workbench/services/workingCopy/common/workingCopyFileService';
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import { IUriIdentityService } from 'vs/workbench/services/uriIdentity/common/uriIdentity';
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import { Emitter } from 'vs/base/common/event';
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import { IPathService } from 'vs/workbench/services/path/common/pathService';
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export class BoundModelReferenceCollection {
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private _data = new Array<{ uri: URI, length: number, dispose(): void }>();
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private _length = 0;
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constructor(
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private readonly _extUri: IExtUri,
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private readonly _maxAge: number = 1000 * 60 * 3,
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private readonly _maxLength: number = 1024 * 1024 * 80,
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) {
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//
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}
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dispose(): void {
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this._data = dispose(this._data);
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}
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remove(uri: URI): void {
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for (const entry of [...this._data] /* copy array because dispose will modify it */) {
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if (this._extUri.isEqualOrParent(entry.uri, uri)) {
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entry.dispose();
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}
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}
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}
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add(uri: URI, ref: IReference<ITextEditorModel>): void {
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const length = ref.object.textEditorModel.getValueLength();
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let handle: any;
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let entry: { uri: URI, length: number, dispose(): void };
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const dispose = () => {
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const idx = this._data.indexOf(entry);
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if (idx >= 0) {
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this._length -= length;
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ref.dispose();
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clearTimeout(handle);
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this._data.splice(idx, 1);
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}
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};
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handle = setTimeout(dispose, this._maxAge);
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entry = { uri, length, dispose };
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this._data.push(entry);
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this._length += length;
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this._cleanup();
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}
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private _cleanup(): void {
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while (this._length > this._maxLength) {
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this._data[0].dispose();
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}
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}
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}
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class ModelTracker extends Disposable {
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private _knownVersionId: number;
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constructor(
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private readonly _model: ITextModel,
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private readonly _onIsCaughtUpWithContentChanges: Emitter<URI>,
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private readonly _proxy: ExtHostDocumentsShape,
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private readonly _textFileService: ITextFileService,
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) {
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super();
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this._knownVersionId = this._model.getVersionId();
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this._register(this._model.onDidChangeContent((e) => {
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this._knownVersionId = e.versionId;
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this._proxy.$acceptModelChanged(this._model.uri, e, this._textFileService.isDirty(this._model.uri));
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if (this.isCaughtUpWithContentChanges()) {
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this._onIsCaughtUpWithContentChanges.fire(this._model.uri);
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}
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}));
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}
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public isCaughtUpWithContentChanges(): boolean {
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return (this._model.getVersionId() === this._knownVersionId);
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}
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}
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export class MainThreadDocuments extends Disposable implements MainThreadDocumentsShape {
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private _onIsCaughtUpWithContentChanges = this._register(new Emitter<URI>());
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public readonly onIsCaughtUpWithContentChanges = this._onIsCaughtUpWithContentChanges.event;
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private readonly _modelService: IModelService;
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private readonly _textModelResolverService: ITextModelService;
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private readonly _textFileService: ITextFileService;
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private readonly _fileService: IFileService;
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private readonly _environmentService: IWorkbenchEnvironmentService;
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private readonly _uriIdentityService: IUriIdentityService;
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private _modelTrackers: { [modelUrl: string]: ModelTracker; };
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private readonly _proxy: ExtHostDocumentsShape;
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private readonly _modelIsSynced = new Set<string>();
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private readonly _modelReferenceCollection: BoundModelReferenceCollection;
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constructor(
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documentsAndEditors: MainThreadDocumentsAndEditors,
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extHostContext: IExtHostContext,
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@IModelService modelService: IModelService,
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@ITextFileService textFileService: ITextFileService,
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@IFileService fileService: IFileService,
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@ITextModelService textModelResolverService: ITextModelService,
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@IWorkbenchEnvironmentService environmentService: IWorkbenchEnvironmentService,
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@IUriIdentityService uriIdentityService: IUriIdentityService,
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@IWorkingCopyFileService workingCopyFileService: IWorkingCopyFileService,
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@IPathService private readonly _pathService: IPathService
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) {
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super();
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this._modelService = modelService;
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this._textModelResolverService = textModelResolverService;
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this._textFileService = textFileService;
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this._fileService = fileService;
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this._environmentService = environmentService;
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this._uriIdentityService = uriIdentityService;
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this._modelReferenceCollection = this._register(new BoundModelReferenceCollection(uriIdentityService.extUri));
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this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostDocuments);
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this._register(documentsAndEditors.onDocumentAdd(models => models.forEach(this._onModelAdded, this)));
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this._register(documentsAndEditors.onDocumentRemove(urls => urls.forEach(this._onModelRemoved, this)));
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this._register(modelService.onModelModeChanged(this._onModelModeChanged, this));
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this._register(textFileService.files.onDidSave(e => {
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if (this._shouldHandleFileEvent(e.model.resource)) {
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this._proxy.$acceptModelSaved(e.model.resource);
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}
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}));
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this._register(textFileService.files.onDidChangeDirty(m => {
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if (this._shouldHandleFileEvent(m.resource)) {
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this._proxy.$acceptDirtyStateChanged(m.resource, m.isDirty());
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}
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}));
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this._register(workingCopyFileService.onDidRunWorkingCopyFileOperation(e => {
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if (e.operation === FileOperation.MOVE || e.operation === FileOperation.DELETE) {
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for (const { source } of e.files) {
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if (source) {
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this._modelReferenceCollection.remove(source);
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}
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}
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}
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}));
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this._modelTrackers = Object.create(null);
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}
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public dispose(): void {
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Object.keys(this._modelTrackers).forEach((modelUrl) => {
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this._modelTrackers[modelUrl].dispose();
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});
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this._modelTrackers = Object.create(null);
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super.dispose();
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}
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public isCaughtUpWithContentChanges(resource: URI): boolean {
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const modelUrl = resource.toString();
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if (this._modelTrackers[modelUrl]) {
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return this._modelTrackers[modelUrl].isCaughtUpWithContentChanges();
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}
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return true;
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}
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private _shouldHandleFileEvent(resource: URI): boolean {
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const model = this._modelService.getModel(resource);
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return !!model && shouldSynchronizeModel(model);
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}
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private _onModelAdded(model: ITextModel): void {
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// Same filter as in mainThreadEditorsTracker
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if (!shouldSynchronizeModel(model)) {
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// don't synchronize too large models
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return;
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}
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const modelUrl = model.uri;
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this._modelIsSynced.add(modelUrl.toString());
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this._modelTrackers[modelUrl.toString()] = new ModelTracker(model, this._onIsCaughtUpWithContentChanges, this._proxy, this._textFileService);
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}
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private _onModelModeChanged(event: { model: ITextModel; oldModeId: string; }): void {
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let { model, oldModeId } = event;
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const modelUrl = model.uri;
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if (!this._modelIsSynced.has(modelUrl.toString())) {
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return;
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}
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this._proxy.$acceptModelModeChanged(model.uri, oldModeId, model.getLanguageIdentifier().language);
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}
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private _onModelRemoved(modelUrl: URI): void {
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const strModelUrl = modelUrl.toString();
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if (!this._modelIsSynced.has(strModelUrl)) {
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return;
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}
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this._modelIsSynced.delete(strModelUrl);
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this._modelTrackers[strModelUrl].dispose();
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delete this._modelTrackers[strModelUrl];
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}
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// --- from extension host process
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$trySaveDocument(uri: UriComponents): Promise<boolean> {
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return this._textFileService.save(URI.revive(uri)).then(target => !!target);
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}
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$tryOpenDocument(uriData: UriComponents): Promise<URI> {
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const inputUri = URI.revive(uriData);
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if (!inputUri.scheme || !(inputUri.fsPath || inputUri.authority)) {
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return Promise.reject(new Error(`Invalid uri. Scheme and authority or path must be set.`));
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}
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const canonicalUri = this._uriIdentityService.asCanonicalUri(inputUri);
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let promise: Promise<URI>;
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switch (canonicalUri.scheme) {
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case Schemas.untitled:
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promise = this._handleUntitledScheme(canonicalUri);
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break;
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case Schemas.file:
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default:
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promise = this._handleAsResourceInput(canonicalUri);
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break;
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}
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return promise.then(documentUri => {
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if (!documentUri) {
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return Promise.reject(new Error(`cannot open ${canonicalUri.toString()}`));
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} else if (!extUri.isEqual(documentUri, canonicalUri)) {
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return Promise.reject(new Error(`cannot open ${canonicalUri.toString()}. Detail: Actual document opened as ${documentUri.toString()}`));
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} else if (!this._modelIsSynced.has(canonicalUri.toString())) {
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return Promise.reject(new Error(`cannot open ${canonicalUri.toString()}. Detail: Files above 50MB cannot be synchronized with extensions.`));
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} else {
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return canonicalUri;
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}
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}, err => {
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return Promise.reject(new Error(`cannot open ${canonicalUri.toString()}. Detail: ${toErrorMessage(err)}`));
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});
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}
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$tryCreateDocument(options?: { language?: string, content?: string }): Promise<URI> {
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return this._doCreateUntitled(undefined, options ? options.language : undefined, options ? options.content : undefined);
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}
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private _handleAsResourceInput(uri: URI): Promise<URI> {
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return this._textModelResolverService.createModelReference(uri).then(ref => {
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this._modelReferenceCollection.add(uri, ref);
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return ref.object.textEditorModel.uri;
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});
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}
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private _handleUntitledScheme(uri: URI): Promise<URI> {
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const asLocalUri = toLocalResource(uri, this._environmentService.remoteAuthority, this._pathService.defaultUriScheme);
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return this._fileService.resolve(asLocalUri).then(stats => {
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// don't create a new file ontop of an existing file
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return Promise.reject(new Error('file already exists'));
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}, err => {
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return this._doCreateUntitled(Boolean(uri.path) ? uri : undefined);
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});
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}
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private _doCreateUntitled(associatedResource?: URI, mode?: string, initialValue?: string): Promise<URI> {
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return this._textFileService.untitled.resolve({
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associatedResource,
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mode,
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initialValue
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}).then(model => {
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const resource = model.resource;
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if (!this._modelIsSynced.has(resource.toString())) {
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throw new Error(`expected URI ${resource.toString()} to have come to LIFE`);
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}
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this._proxy.$acceptDirtyStateChanged(resource, true); // mark as dirty
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return resource;
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});
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}
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}
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