SQL Operations Studio Public Preview 1 (0.23) release source code

src/vs/editor/browser/view/viewPart.ts

@@ -0,0 +1,81 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { ViewEventHandler } from 'vs/editor/common/viewModel/viewEventHandler';
+import { ViewContext } from 'vs/editor/common/view/viewContext';
+import { RenderingContext, RestrictedRenderingContext } from 'vs/editor/common/view/renderingContext';
+import { FastDomNode } from 'vs/base/browser/fastDomNode';
+
+export abstract class ViewPart extends ViewEventHandler {
+
+	_context: ViewContext;
+
+	constructor(context: ViewContext) {
+		super();
+		this._context = context;
+		this._context.addEventHandler(this);
+	}
+
+	public dispose(): void {
+		this._context.removeEventHandler(this);
+		this._context = null;
+		super.dispose();
+	}
+
+	public abstract prepareRender(ctx: RenderingContext): void;
+	public abstract render(ctx: RestrictedRenderingContext): void;
+}
+
+export const enum PartFingerprint {
+	None,
+	ContentWidgets,
+	OverflowingContentWidgets,
+	OverflowGuard,
+	OverlayWidgets,
+	ScrollableElement,
+	TextArea,
+	ViewLines,
+	Minimap
+}
+
+export class PartFingerprints {
+
+	public static write(target: Element | FastDomNode<HTMLElement>, partId: PartFingerprint) {
+		if (target instanceof FastDomNode) {
+			target.setAttribute('data-mprt', String(partId));
+		} else {
+			target.setAttribute('data-mprt', String(partId));
+		}
+	}
+
+	public static read(target: Element): PartFingerprint {
+		let r = target.getAttribute('data-mprt');
+		if (r === null) {
+			return PartFingerprint.None;
+		}
+		return parseInt(r, 10);
+	}
+
+	public static collect(child: Element, stopAt: Element): Uint8Array {
+		let result: PartFingerprint[] = [], resultLen = 0;
+
+		while (child && child !== document.body) {
+			if (child === stopAt) {
+				break;
+			}
+			if (child.nodeType === child.ELEMENT_NODE) {
+				result[resultLen++] = this.read(child);
+			}
+			child = child.parentElement;
+		}
+
+		let r = new Uint8Array(resultLen);
+		for (let i = 0; i < resultLen; i++) {
+			r[i] = result[resultLen - i - 1];
+		}
+		return r;
+	}
+}