Move all impl to scrollable/

src/browser/scrollable/verticalScrollbar.ts

@@ -0,0 +1,86 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { AbstractScrollbar, ISimplifiedPointerEvent, ScrollbarHost } from './abstractScrollbar';
+import { ScrollableElementResolvedOptions } from './scrollableElementOptions';
+import { ScrollbarState } from './scrollbarState';
+import { INewScrollPosition, Scrollable, ScrollbarVisibility, ScrollEvent } from './scrollable';
+
+export class VerticalScrollbar extends AbstractScrollbar {
+
+	constructor(scrollable: Scrollable, options: ScrollableElementResolvedOptions, host: ScrollbarHost) {
+		const scrollDimensions = scrollable.getScrollDimensions();
+		const scrollPosition = scrollable.getCurrentScrollPosition();
+		super({
+			lazyRender: options.lazyRender,
+			host: host,
+			scrollbarState: new ScrollbarState(
+				(options.verticalHasArrows ? options.arrowSize : 0),
+				(options.vertical === ScrollbarVisibility.Hidden ? 0 : options.verticalScrollbarSize),
+				0,
+				scrollDimensions.height,
+				scrollDimensions.scrollHeight,
+				scrollPosition.scrollTop
+			),
+			visibility: options.vertical,
+			extraScrollbarClassName: 'vertical',
+			scrollable: scrollable,
+			scrollByPage: options.scrollByPage
+		});
+
+		if (options.verticalHasArrows) {
+			throw new Error('horizontalHasArrows is not supported in xterm.js');
+		}
+
+		this._createSlider(0, Math.floor((options.verticalScrollbarSize - options.verticalSliderSize) / 2), options.verticalSliderSize, undefined);
+	}
+
+	protected _updateSlider(sliderSize: number, sliderPosition: number): void {
+		this.slider.setHeight(sliderSize);
+		this.slider.setTop(sliderPosition);
+	}
+
+	protected _renderDomNode(largeSize: number, smallSize: number): void {
+		this.domNode.setWidth(smallSize);
+		this.domNode.setHeight(largeSize);
+		this.domNode.setRight(0);
+		this.domNode.setTop(0);
+	}
+
+	public onDidScroll(e: ScrollEvent): boolean {
+		this._shouldRender = this._onElementScrollSize(e.scrollHeight) || this._shouldRender;
+		this._shouldRender = this._onElementScrollPosition(e.scrollTop) || this._shouldRender;
+		this._shouldRender = this._onElementSize(e.height) || this._shouldRender;
+		return this._shouldRender;
+	}
+
+	protected _pointerDownRelativePosition(offsetX: number, offsetY: number): number {
+		return offsetY;
+	}
+
+	protected _sliderPointerPosition(e: ISimplifiedPointerEvent): number {
+		return e.pageY;
+	}
+
+	protected _sliderOrthogonalPointerPosition(e: ISimplifiedPointerEvent): number {
+		return e.pageX;
+	}
+
+	protected _updateScrollbarSize(size: number): void {
+		this.slider.setWidth(size);
+	}
+
+	public writeScrollPosition(target: INewScrollPosition, scrollPosition: number): void {
+		target.scrollTop = scrollPosition;
+	}
+
+	public updateOptions(options: ScrollableElementResolvedOptions): void {
+		this.updateScrollbarSize(options.vertical === ScrollbarVisibility.Hidden ? 0 : options.verticalScrollbarSize);
+		this._scrollbarState.setOppositeScrollbarSize(0);
+		this._visibilityController.setVisibility(options.vertical);
+		this._scrollByPage = options.scrollByPage;
+	}
+
+}