TypeScript textfiles.ITextFileService類代碼示例

function resolveContent(textFileService: ITextFileService, resource: URI, mime: string, callback: any): void {
	textFileService.read(resource, { encoding: 'binary' }).then(contents => {
		callback({
			data: Buffer.from(contents.value, contents.encoding),
			mimeType: mime
		});
	}, (err) => {
		console.log(err);
		callback({ error: -2 /* FAILED: https://cs.chromium.org/chromium/src/net/base/net_error_list.h */ });
	});
}

function saveAll(saveAllArguments: any, editorService: IEditorService, untitledEditorService: IUntitledEditorService,
	textFileService: ITextFileService, editorGroupService: IEditorGroupsService): Promise<any> {

	// Store some properties per untitled file to restore later after save is completed
	const groupIdToUntitledResourceInput = new Map<number, IResourceInput[]>();

	editorGroupService.groups.forEach(g => {
		const activeEditorResource = g.activeEditor && g.activeEditor.getResource();
		g.editors.forEach(e => {
			const resource = e.getResource();
			if (resource && untitledEditorService.isDirty(resource)) {
				if (!groupIdToUntitledResourceInput.has(g.id)) {
					groupIdToUntitledResourceInput.set(g.id, []);
				}

				groupIdToUntitledResourceInput.get(g.id)!.push({
					encoding: untitledEditorService.getEncoding(resource),
					resource,
					options: {
						inactive: activeEditorResource ? activeEditorResource.toString() !== resource.toString() : true,
						pinned: true,
						preserveFocus: true,
						index: g.getIndexOfEditor(e)
					}
				});
			}
		});
	});

	// Save all
	return textFileService.saveAll(saveAllArguments).then((result) => {
		groupIdToUntitledResourceInput.forEach((inputs, groupId) => {
			// Update untitled resources to the saved ones, so we open the proper files
			inputs.forEach(i => {
				const targetResult = result.results.filter(r => r.success && r.source.toString() === i.resource.toString()).pop();
				if (targetResult && targetResult.target) {
					i.resource = targetResult.target;
				}
			});
			editorService.openEditors(inputs, groupId);
		});
	});
}

function save(resource: URI, isSaveAs: boolean, editorService: IWorkbenchEditorService, fileService: IFileService, untitledEditorService: IUntitledEditorService,
	textFileService: ITextFileService, editorGroupService: IEditorGroupService): TPromise<any> {

	if (resource && (fileService.canHandleResource(resource) || resource.scheme === Schemas.untitled)) {

		// Save As (or Save untitled with associated path)
		if (isSaveAs || resource.scheme === Schemas.untitled) {
			let encodingOfSource: string;
			if (resource.scheme === Schemas.untitled) {
				encodingOfSource = untitledEditorService.getEncoding(resource);
			} else if (fileService.canHandleResource(resource)) {
				const textModel = textFileService.models.get(resource);
				encodingOfSource = textModel && textModel.getEncoding(); // text model can be null e.g. if this is a binary file!
			}

			let viewStateOfSource: IEditorViewState;
			const activeEditor = editorService.getActiveEditor();
			const editor = getCodeEditor(activeEditor);
			if (editor) {
				const activeResource = toResource(activeEditor.input, { supportSideBySide: true });
				if (activeResource && (fileService.canHandleResource(activeResource) || resource.scheme === Schemas.untitled) && activeResource.toString() === resource.toString()) {
					viewStateOfSource = editor.saveViewState();
				}
			}

			// Special case: an untitled file with associated path gets saved directly unless "saveAs" is true
			let savePromise: TPromise<URI>;
			if (!isSaveAs && resource.scheme === Schemas.untitled && untitledEditorService.hasAssociatedFilePath(resource)) {
				savePromise = textFileService.save(resource).then((result) => {
					if (result) {
						return URI.file(resource.fsPath);
					}

					return null;
				});
			}

			// Otherwise, really "Save As..."
			else {
				savePromise = textFileService.saveAs(resource);
			}

			return savePromise.then((target) => {
				if (!target || target.toString() === resource.toString()) {
					return void 0; // save canceled or same resource used
				}

				const replaceWith: IResourceInput = {
					resource: target,
					encoding: encodingOfSource,
					options: {
						pinned: true,
						viewState: viewStateOfSource
					}
				};

				return editorService.replaceEditors([{
					toReplace: { resource: resource },
					replaceWith
				}]).then(() => true);
			});
		}

		// Pin the active editor if we are saving it
		const editor = editorService.getActiveEditor();
		const activeEditorResource = editor && editor.input && editor.input.getResource();
		if (activeEditorResource && activeEditorResource.toString() === resource.toString()) {
			editorGroupService.pinEditor(editor.position, editor.input);
		}

		// Just save
		return textFileService.save(resource, { force: true /* force a change to the file to trigger external watchers if any */ });
	}

	return TPromise.as(false);
}

function saveAll(saveAllArguments: any, editorService: IWorkbenchEditorService, untitledEditorService: IUntitledEditorService,
	textFileService: ITextFileService, editorGroupService: IEditorGroupService): TPromise<any> {

	const stacks = editorGroupService.getStacksModel();

	// Store some properties per untitled file to restore later after save is completed
	const mapUntitledToProperties: { [resource: string]: { encoding: string; indexInGroups: number[]; activeInGroups: boolean[] } } = Object.create(null);
	untitledEditorService.getDirty().forEach(resource => {
		const activeInGroups: boolean[] = [];
		const indexInGroups: number[] = [];
		const encoding = untitledEditorService.getEncoding(resource);

		// For each group
		stacks.groups.forEach((group, groupIndex) => {

			// Find out if editor is active in group
			const activeEditor = group.activeEditor;
			const activeResource = toResource(activeEditor, { supportSideBySide: true });
			activeInGroups[groupIndex] = (activeResource && activeResource.toString() === resource.toString());

			// Find index of editor in group
			indexInGroups[groupIndex] = -1;
			group.getEditors().forEach((editor, editorIndex) => {
				const editorResource = toResource(editor, { supportSideBySide: true });
				if (editorResource && editorResource.toString() === resource.toString()) {
					indexInGroups[groupIndex] = editorIndex;
					return;
				}
			});
		});

		mapUntitledToProperties[resource.toString()] = { encoding, indexInGroups, activeInGroups };
	});

	// Save all
	return textFileService.saveAll(saveAllArguments).then(results => {

		// Reopen saved untitled editors
		const untitledToReopen: { input: IResourceInput, position: Position }[] = [];

		results.results.forEach(result => {
			if (!result.success || result.source.scheme !== Schemas.untitled) {
				return;
			}

			const untitledProps = mapUntitledToProperties[result.source.toString()];
			if (!untitledProps) {
				return;
			}

			// For each position where the untitled file was opened
			untitledProps.indexInGroups.forEach((indexInGroup, index) => {
				if (indexInGroup >= 0) {
					untitledToReopen.push({
						input: {
							resource: result.target,
							encoding: untitledProps.encoding,
							options: {
								pinned: true,
								index: indexInGroup,
								preserveFocus: true,
								inactive: !untitledProps.activeInGroups[index]
							}
						},
						position: index
					});
				}
			});
		});

		if (untitledToReopen.length) {
			return editorService.openEditors(untitledToReopen).then(() => true);
		}

		return void 0;
	});
}

function save(
	resource: URI | null,
	isSaveAs: boolean,
	options: ISaveOptions | undefined,
	editorService: IEditorService,
	fileService: IFileService,
	untitledEditorService: IUntitledEditorService,
	textFileService: ITextFileService,
	editorGroupService: IEditorGroupsService
): Promise<any> {

	function ensureForcedSave(options?: ISaveOptions): ISaveOptions {
		if (!options) {
			options = { force: true };
		} else {
			options.force = true;
		}

		return options;
	}

	if (resource && (fileService.canHandleResource(resource) || resource.scheme === Schemas.untitled)) {

		// Save As (or Save untitled with associated path)
		if (isSaveAs || resource.scheme === Schemas.untitled) {
			let encodingOfSource: string | undefined;
			if (resource.scheme === Schemas.untitled) {
				encodingOfSource = untitledEditorService.getEncoding(resource);
			} else if (fileService.canHandleResource(resource)) {
				const textModel = textFileService.models.get(resource);
				encodingOfSource = textModel && textModel.getEncoding(); // text model can be null e.g. if this is a binary file!
			}

			let viewStateOfSource: IEditorViewState | null;
			const activeTextEditorWidget = getCodeEditor(editorService.activeTextEditorWidget);
			if (activeTextEditorWidget) {
				const activeResource = toResource(editorService.activeEditor, { supportSideBySide: true });
				if (activeResource && (fileService.canHandleResource(activeResource) || resource.scheme === Schemas.untitled) && activeResource.toString() === resource.toString()) {
					viewStateOfSource = activeTextEditorWidget.saveViewState();
				}
			}

			// Special case: an untitled file with associated path gets saved directly unless "saveAs" is true
			let savePromise: Promise<URI | undefined>;
			if (!isSaveAs && resource.scheme === Schemas.untitled && untitledEditorService.hasAssociatedFilePath(resource)) {
				savePromise = textFileService.save(resource, options).then((result) => {
					if (result) {
						return resource.with({ scheme: Schemas.file });
					}

					return undefined;
				});
			}

			// Otherwise, really "Save As..."
			else {

				// Force a change to the file to trigger external watchers if any
				// fixes https://github.com/Microsoft/vscode/issues/59655
				options = ensureForcedSave(options);

				savePromise = textFileService.saveAs(resource, undefined, options);
			}

			return savePromise.then((target) => {
				if (!target || target.toString() === resource.toString()) {
					return false; // save canceled or same resource used
				}

				const replacement: IResourceInput = {
					resource: target,
					encoding: encodingOfSource,
					options: {
						pinned: true,
						viewState: viewStateOfSource || undefined
					}
				};

				return Promise.all(editorGroupService.groups.map(g =>
					editorService.replaceEditors([{
						editor: { resource },
						replacement
					}], g))).then(() => true);
			});
		}

		// Pin the active editor if we are saving it
		const activeControl = editorService.activeControl;
		const activeEditorResource = activeControl && activeControl.input && activeControl.input.getResource();
		if (activeControl && activeEditorResource && activeEditorResource.toString() === resource.toString()) {
			activeControl.group.pinEditor(activeControl.input);
		}

		// Just save (force a change to the file to trigger external watchers if any)
		options = ensureForcedSave(options);

		return textFileService.save(resource, options);
	}

	return Promise.resolve(false);
//.........這裏部分代碼省略.........