added dropdown and form layout to model view (#1269)

* added dropdown and form layout to model view

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

@@ -0,0 +1,117 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import {
+	Component, Input, Inject, ChangeDetectorRef, forwardRef, ComponentFactoryResolver,
+	ViewChild, ViewChildren, ElementRef, Injector, OnDestroy, QueryList, AfterViewInit
+} from '@angular/core';
+
+import * as sqlops from 'sqlops';
+import Event, { Emitter } from 'vs/base/common/event';
+
+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 { CommonServiceInterface } from 'sql/services/common/commonServiceInterface.service';
+import { attachListStyler } from 'vs/platform/theme/common/styler';
+import { attachEditableDropdownStyler } from 'sql/common/theme/styler';
+
+@Component({
+	selector: 'inputBox',
+	template: `
+		<div #input style="width: 100%"></div>
+	`
+})
+export default class DropDownComponent extends ComponentBase implements IComponent, OnDestroy, AfterViewInit {
+	@Input() descriptor: IComponentDescriptor;
+	@Input() modelStore: IModelStore;
+	private _dropdown: Dropdown;
+
+	@ViewChild('input', { read: ElementRef }) private _inputContainer: ElementRef;
+	constructor(
+		@Inject(forwardRef(() => CommonServiceInterface)) private _commonService: CommonServiceInterface,
+		@Inject(forwardRef(() => ChangeDetectorRef)) changeRef: ChangeDetectorRef) {
+		super(changeRef);
+	}
+
+	ngOnInit(): void {
+		this.baseInit();
+
+	}
+
+	ngAfterViewInit(): void {
+		if (this._inputContainer) {
+			let dropdownOptions: IDropdownOptions = {
+				values: [],
+				strictSelection: false,
+				placeholder: '',
+				maxHeight: 125,
+				ariaLabel: ''
+			};
+
+			this._dropdown = new Dropdown(this._inputContainer.nativeElement, this._commonService.contextViewService, this._commonService.themeService,
+				dropdownOptions);
+
+			this._register(this._dropdown);
+			this._register(attachEditableDropdownStyler(this._dropdown, this._commonService.themeService));
+			this._register(this._dropdown.onValueChange(e => {
+				this.value = this._dropdown.value;
+				this._onEventEmitter.fire({
+					eventType: ComponentEventType.onDidChange,
+					args: e
+				});
+			}));
+		}
+	}
+
+	ngOnDestroy(): void {
+		this.baseDestroy();
+	}
+
+	/// IComponent implementation
+
+	public layout(): void {
+		this._changeRef.detectChanges();
+	}
+
+	public setLayout(layout: any): void {
+		// TODO allow configuring the look and feel
+		this.layout();
+	}
+
+	public setProperties(properties: { [key: string]: any; }): void {
+		super.setProperties(properties);
+		this._dropdown.values = this.values ? this.values : [];
+		if (this.value) {
+			this._dropdown.value = this.value;
+		}
+	}
+
+	// CSS-bound properties
+
+	private get value(): string {
+		return this.getPropertyOrDefault<sqlops.DropDownProperties, string>((props) => props.value, '');
+	}
+
+	private set value(newValue: string) {
+		this.setPropertyFromUI<sqlops.DropDownProperties, string>(this.setValueProperties, newValue);
+	}
+
+	private get values(): string[] {
+		return this.getPropertyOrDefault<sqlops.DropDownProperties, string[]>((props) => props.values, undefined);
+	}
+
+	private set values(newValue: string[]) {
+		this.setPropertyFromUI<sqlops.DropDownProperties, string[]>(this.setValuesProperties, newValue);
+	}
+
+	private setValueProperties(properties: sqlops.DropDownProperties, value: string): void {
+		properties.value = value;
+	}
+
+	private setValuesProperties(properties: sqlops.DropDownProperties, values: string[]): void {
+		properties.values = values;
+	}
+}