add markdown-language-features to sqlops (#2338)

extensions/markdown-language-features/src/commands/showPreview.ts

@@ -0,0 +1,123 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+
+import { Command } from '../commandManager';
+import { MarkdownPreviewManager } from '../features/previewManager';
+import { TelemetryReporter } from '../telemetryReporter';
+import { PreviewSettings } from '../features/preview';
+
+
+function getViewColumn(sideBySide: boolean): vscode.ViewColumn | undefined {
+	const active = vscode.window.activeTextEditor;
+	if (!active) {
+		return vscode.ViewColumn.One;
+	}
+
+	if (!sideBySide) {
+		return active.viewColumn;
+	}
+
+	switch (active.viewColumn) {
+		case vscode.ViewColumn.One:
+			return vscode.ViewColumn.Two;
+		case vscode.ViewColumn.Two:
+			return vscode.ViewColumn.Three;
+	}
+
+	return active.viewColumn;
+}
+
+interface ShowPreviewSettings {
+	readonly sideBySide?: boolean;
+	readonly locked?: boolean;
+}
+
+async function showPreview(
+	webviewManager: MarkdownPreviewManager,
+	telemetryReporter: TelemetryReporter,
+	uri: vscode.Uri | undefined,
+	previewSettings: ShowPreviewSettings,
+): Promise<any> {
+	let resource = uri;
+	if (!(resource instanceof vscode.Uri)) {
+		if (vscode.window.activeTextEditor) {
+			// we are relaxed and don't check for markdown files
+			resource = vscode.window.activeTextEditor.document.uri;
+		}
+	}
+
+	if (!(resource instanceof vscode.Uri)) {
+		if (!vscode.window.activeTextEditor) {
+			// this is most likely toggling the preview
+			return vscode.commands.executeCommand('markdown.showSource');
+		}
+		// nothing found that could be shown or toggled
+		return;
+	}
+
+	webviewManager.preview(resource, {
+		resourceColumn: (vscode.window.activeTextEditor && vscode.window.activeTextEditor.viewColumn) || vscode.ViewColumn.One,
+		previewColumn: getViewColumn(!!previewSettings.sideBySide) || vscode.ViewColumn.Active,
+		locked: !!previewSettings.locked
+	});
+
+	telemetryReporter.sendTelemetryEvent('openPreview', {
+		where: previewSettings.sideBySide ? 'sideBySide' : 'inPlace',
+		how: (uri instanceof vscode.Uri) ? 'action' : 'pallete'
+	});
+}
+
+export class ShowPreviewCommand implements Command {
+	public readonly id = 'markdown.showPreview';
+
+	public constructor(
+		private readonly webviewManager: MarkdownPreviewManager,
+		private readonly telemetryReporter: TelemetryReporter
+	) { }
+
+	public execute(mainUri?: vscode.Uri, allUris?: vscode.Uri[], previewSettings?: PreviewSettings) {
+		for (const uri of (allUris || [mainUri])) {
+			showPreview(this.webviewManager, this.telemetryReporter, uri, {
+				sideBySide: false,
+				locked: previewSettings && previewSettings.locked
+			});
+		}
+	}
+}
+
+export class ShowPreviewToSideCommand implements Command {
+	public readonly id = 'markdown.showPreviewToSide';
+
+	public constructor(
+		private readonly webviewManager: MarkdownPreviewManager,
+		private readonly telemetryReporter: TelemetryReporter
+	) { }
+
+	public execute(uri?: vscode.Uri, previewSettings?: PreviewSettings) {
+		showPreview(this.webviewManager, this.telemetryReporter, uri, {
+			sideBySide: true,
+			locked: previewSettings && previewSettings.locked
+		});
+	}
+}
+
+
+export class ShowLockedPreviewToSideCommand implements Command {
+	public readonly id = 'markdown.showLockedPreviewToSide';
+
+	public constructor(
+		private readonly webviewManager: MarkdownPreviewManager,
+		private readonly telemetryReporter: TelemetryReporter
+	) { }
+
+	public execute(uri?: vscode.Uri) {
+		showPreview(this.webviewManager, this.telemetryReporter, uri, {
+			sideBySide: true,
+			locked: true
+		});
+	}
+}