customEditor toggle and save/preview keybinds (#86505)

* customEditor toggle and save/preview keybinds

* travis ci

* removed save command; toggle replaces current tab

* removed travis ci; use vscode ci checks

* export default id and using replaceEditors

src/vs/workbench/contrib/customEditor/browser/commands.ts

@@ -12,15 +12,17 @@ import * as nls from 'vs/nls';
 import { MenuId, MenuRegistry } from 'vs/platform/actions/common/actions';
 import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
 import { InputFocusedContextKey } from 'vs/platform/contextkey/common/contextkeys';
-import { ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
+import { ServicesAccessor, IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { KeybindingsRegistry, KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry';
 import { IListService } from 'vs/platform/list/browser/listService';
-import { IEditorCommandsContext } from 'vs/workbench/common/editor';
+import { IEditorCommandsContext, IEditorInput } from 'vs/workbench/common/editor';
 import { CONTEXT_FOCUSED_CUSTOM_EDITOR_IS_EDITABLE, CONTEXT_HAS_CUSTOM_EDITORS, ICustomEditorService } from 'vs/workbench/contrib/customEditor/common/customEditor';
 import { getMultiSelectedResources } from 'vs/workbench/contrib/files/browser/files';
 import { IEditorGroup, IEditorGroupsService } from 'vs/workbench/services/editor/common/editorGroupsService';
 import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
 import { IExplorerService } from 'vs/workbench/contrib/files/common/files';
+import { defaultEditorId } from 'vs/workbench/contrib/customEditor/browser/customEditors';
+import { FileEditorInput } from 'vs/workbench/contrib/files/common/editors/fileEditorInput';
 
 const viewCategory = nls.localize('viewCategory', "View");
 
@@ -172,3 +174,62 @@ MenuRegistry.appendMenuItem(MenuId.CommandPalette, {
 		model.redo();
 	}
 }).register();
+
+(new class ToggleCustomEditorCommand extends Command {
+	public static readonly ID = 'editor.action.customEditor.toggle';
+
+	constructor() {
+		super({
+			id: ToggleCustomEditorCommand.ID,
+			precondition: CONTEXT_HAS_CUSTOM_EDITORS,
+		});
+	}
+
+	public runCommand(accessor: ServicesAccessor): void {
+		const editorService = accessor.get<IEditorService>(IEditorService);
+		const activeControl = editorService.activeControl;
+		if (!activeControl) {
+			return;
+		}
+
+		const activeGroup = activeControl.group;
+		const activeEditor = activeControl.input;
+
+		if (!activeEditor) {
+			return;
+		}
+
+		const targetResource = activeEditor.getResource();
+		if (!targetResource) {
+			return;
+		}
+
+		const customEditorService = accessor.get<ICustomEditorService>(ICustomEditorService);
+		const activeCustomEditor = customEditorService.activeCustomEditor;
+
+		let toggleView = defaultEditorId;
+		if (!activeCustomEditor) {
+			const viewIDs = customEditorService.getContributedCustomEditors(targetResource);
+			if (viewIDs && viewIDs.length) {
+				toggleView = viewIDs[0].id;
+			}
+			else {
+				return;
+			}
+		}
+
+		let replInput: IEditorInput;
+		if (toggleView === defaultEditorId) {
+			const instantiationService = accessor.get<IInstantiationService>(IInstantiationService);
+			replInput = instantiationService.createInstance(FileEditorInput, targetResource, undefined, undefined);
+		}
+		else {
+			replInput = customEditorService.createInput(targetResource, toggleView, activeGroup);
+		}
+
+		editorService.replaceEditors([{
+			editor: activeEditor,
+			replacement: replInput,
+		}], activeGroup);
+	}
+}).register();

src/vs/workbench/contrib/customEditor/browser/customEditors.ts

@@ -29,7 +29,7 @@ import { IEditorGroup } from 'vs/workbench/services/editor/common/editorGroupsSe
 import { IEditorService, IOpenEditorOverride } from 'vs/workbench/services/editor/common/editorService';
 import { IWorkingCopyService } from 'vs/workbench/services/workingCopy/common/workingCopyService';
 import { CustomFileEditorInput } from './customEditorInput';
-const defaultEditorId = 'default';
+export const defaultEditorId = 'default';
 
 const defaultEditorInfo = new CustomEditorInfo({
 	id: defaultEditorId,