untitled and created files are pinned by default

src/vs/workbench/common/editor.ts

@@ -333,7 +333,7 @@ export class TextEditorOptions extends EditorOptions {
 	public static from(input: IResourceInput): TextEditorOptions {
 		let options: TextEditorOptions = null;
 		if (input && input.options) {
-			if (input.options.selection || input.options.forceOpen || input.options.preserveFocus) {
+			if (input.options.selection || input.options.forceOpen || input.options.preserveFocus || input.options.pinned || typeof input.options.index === 'number') {
 				options = new TextEditorOptions();
 			}
 

src/vs/workbench/parts/files/browser/editors/textFileEditor.ts

@@ -184,13 +184,13 @@ export class TextFileEditor extends BaseTextEditor {
 					new Action('workbench.files.action.createMissingFile', nls.localize('createFile', "Create File"), null, true, () => {
 						return this.fileService.updateContent((<FileEditorInput>input).getResource(), '').then(() => {
 
-							// Add to working files
-							this.textFileService.getWorkingFilesModel().addEntry((<FileEditorInput>input).getResource());
-
 							// Open
 							return this.editorService.openEditor({
 								resource: (<FileEditorInput>input).getResource(),
-								mime: MIME_TEXT
+								mime: MIME_TEXT,
+								options: {
+									pinned: true // new file gets pinned by default
+								}
 							});
 						});
 					})

src/vs/workbench/parts/files/browser/fileActions.ts

@@ -578,10 +578,7 @@ export class GlobalNewUntitledFileAction extends Action {
 	public run(): TPromise<any> {
 		let input = this.untitledEditorService.createOrGet();
 
-		// Make sure this untitled buffer shows up in working files set
-		this.textFileService.getWorkingFilesModel().addEntry(input.getResource());
-
-		return this.editorService.openEditor(input);
+		return this.editorService.openEditor(input, EditorOptions.create({ pinned: true })); // untitled are always pinned
 	}
 }
 

src/vs/workbench/parts/files/electron-browser/electronFileTracker.ts

@@ -6,7 +6,6 @@
 'use strict';
 
 import {TPromise} from 'vs/base/common/winjs.base';
-import paths = require('vs/base/common/paths');
 import {IWorkbenchContribution} from 'vs/workbench/common/contributions';
 import {TextFileChangeEvent, EventType as FileEventType, ITextFileService, AutoSaveMode, VIEWLET_ID} from 'vs/workbench/parts/files/common/files';
 import {IFileService} from 'vs/platform/files/common/files';
@@ -123,16 +122,6 @@ export class FileTracker implements IWorkbenchContribution {
 
 			return viewletPromise.then(() => {
 
-				// Out of workspace files get added right away to working files model
-				resources.forEach((fileToOpen) => {
-					let resource = fileToOpen.resource;
-					let workspace = this.contextService.getWorkspace();
-
-					if (!workspace || !paths.isEqualOrParent(resource.fsPath, workspace.resource.fsPath)) {
-						this.textFileService.getWorkingFilesModel().addEntry(resource);
-					}
-				});
-
 				// In diffMode we open 2 resources as diff
 				if (diffMode) {
 					return TPromise.join(resources.map(f => this.editorService.inputToType(f))).then((inputs: EditorInput[]) => {