Accessibility enhancements (#1678)

* adds aria-label to inputs for connection

* formatting

* add ariaLabels to all checkboxes/inputboxes/dropdowns

* fix labels on database dropdown action

* fix compile errors

* remove unnecessary code

src/sql/base/browser/ui/editableDropdown/actions.ts

@@ -11,7 +11,7 @@ export class ToggleDropdownAction extends Action {
 	private static readonly ID = 'dropdownAction.toggle';
 	private static readonly ICON = 'dropdown-arrow';
 
-	constructor(label, private _fn: () => any) {
+	constructor(private _fn: () => any, label: string) {
 		super(ToggleDropdownAction.ID, label, ToggleDropdownAction.ICON);
 	}
 

src/sql/base/browser/ui/editableDropdown/dropdown.ts

@@ -53,6 +53,10 @@ export interface IDropdownOptions extends IDropdownStyles {
 	 * Value to use as aria-label for the input box
 	 */
 	ariaLabel?: string;
+	/**
+	 * Label for the dropdown action
+	 */
+	actionLabel: string;
 }
 
 export interface IDropdownStyles {
@@ -66,7 +70,8 @@ const defaults: IDropdownOptions = {
 	strictSelection: true,
 	maxHeight: 300,
 	errorMessage: errorMessage,
-	contextBorder: Color.fromHex('#696969')
+	contextBorder: Color.fromHex('#696969'),
+	actionLabel: nls.localize('dropdownAction.toggle', "Toggle dropdown")
 };
 
 interface ListResource {
@@ -115,11 +120,11 @@ export class Dropdown extends Disposable {
 		this.$input = $('.dropdown-input').style('width', '100%').appendTo(this.$el);
 		this.$treeContainer = $('.dropdown-tree');
 
-		this._toggleAction = new ToggleDropdownAction(nls.localize('dropdown.toggle', '{0} Toggle Dropdown', this._options.ariaLabel), () => {
+		this._toggleAction = new ToggleDropdownAction(() => {
 			this._showList();
 			this._tree.domFocus();
 			this._tree.focusFirst();
-		});
+		}, opt.actionLabel);
 
 		this._input = new InputBox(this.$input.getHTMLElement(), contextViewService, {
 			validationOptions: {

src/sql/parts/connection/connectionDialog/connectionWidget.ts

@@ -172,7 +172,8 @@ export class ConnectionWidget {
 			strictSelection: false,
 			placeholder: this._defaultDatabaseName,
 			maxHeight: 125,
-			ariaLabel: databaseOption.displayName
+			ariaLabel: databaseOption.displayName,
+			actionLabel: localize('toggleDatabaseNameDropdown', 'Select Database Toggle Dropdown')
 		});
 
 		let serverGroupLabel = localize('serverGroup', 'Server group');

src/sql/parts/disasterRecovery/restore/restoreDialog.ts

@@ -235,7 +235,8 @@ export class RestoreDialog extends Modal {
 					this._databaseDropdown = new Dropdown(inputCellContainer.getHTMLElement(), this._contextViewService, this._themeService,
 						{
 							strictSelection: false,
-							ariaLabel: LocalizedStrings.TARGETDATABASE
+							ariaLabel: LocalizedStrings.TARGETDATABASE,
+							actionLabel: localize('toggleDatabaseNameDropdown', 'Select Database Toggle Dropdown')
 						}
 					);
 					this._databaseDropdown.onValueChange(s => {

src/sql/parts/modelComponents/dropdown.component.ts

@@ -4,8 +4,8 @@
  *--------------------------------------------------------------------------------------------*/
 
 import {
-	Component, Input, Inject, ChangeDetectorRef, forwardRef, ComponentFactoryResolver,
-	ViewChild, ViewChildren, ElementRef, Injector, OnDestroy, QueryList, AfterViewInit
+	Component, Input, Inject, ChangeDetectorRef, forwardRef,
+	ViewChild, ElementRef, OnDestroy, AfterViewInit
 } from '@angular/core';
 
 import * as sqlops from 'sqlops';
@@ -14,14 +14,11 @@ import { ComponentBase } from 'sql/parts/modelComponents/componentBase';
 import { IComponent, IComponentDescriptor, IModelStore, ComponentEventType } from 'sql/parts/modelComponents/interfaces';
 import { Dropdown, IDropdownOptions } from 'sql/base/browser/ui/editableDropdown/dropdown';
 import { SelectBox } from 'sql/base/browser/ui/selectBox/selectBox';
-import { CommonServiceInterface } from 'sql/services/common/commonServiceInterface.service';
 import { attachEditableDropdownStyler } from 'sql/common/theme/styler';
 import { attachSelectBoxStyler } from 'vs/platform/theme/common/styler';
 
 import { IWorkbenchThemeService } from 'vs/workbench/services/themes/common/workbenchThemeService';
 import { IContextViewService } from 'vs/platform/contextview/browser/contextView';
-import { Event, Emitter } from 'vs/base/common/event';
-import { attachListStyler } from 'vs/platform/theme/common/styler';
 
 @Component({
 	selector: 'modelview-dropdown',
@@ -60,7 +57,8 @@ export default class DropDownComponent extends ComponentBase implements ICompone
 				strictSelection: false,
 				placeholder: '',
 				maxHeight: 125,
-				ariaLabel: ''
+				ariaLabel: '',
+				actionLabel: ''
 			};
 			this._editableDropdown = new Dropdown(this._editableDropDownContainer.nativeElement, this.contextViewService, this.themeService,
 				dropdownOptions);

src/sql/parts/query/execution/queryActions.ts

@@ -448,7 +448,8 @@ export class ListDatabasesActionItem extends EventEmitter implements IActionItem
 		this._dropdown = new Dropdown(this.$databaseListDropdown.getHTMLElement(), contextViewProvider, themeService, {
 			strictSelection: true,
 			placeholder: selectString,
-			ariaLabel: selectString
+			ariaLabel: selectString,
+			actionLabel: nls.localize('toggleDatabaseNameDropdown', 'Select Database Toggle Dropdown')
 		});
 		this._dropdown.onValueChange(s => this.databaseSelected(s));