move code from parts to contrib (#8319)

src/sql/workbench/contrib/charts/browser/imageInsight.ts

@@ -0,0 +1,79 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { IInsight, IInsightData } from './interfaces';
+import { INotificationService } from 'vs/platform/notification/common/notification';
+import { $ } from 'vs/base/browser/dom';
+import { mixin } from 'vs/base/common/objects';
+import { IInsightOptions, InsightType } from 'sql/workbench/contrib/charts/common/interfaces';
+import * as nls from 'vs/nls';
+import { startsWith } from 'vs/base/common/strings';
+
+export interface IConfig extends IInsightOptions {
+	encoding?: string;
+	imageFormat?: string;
+}
+
+const defaultConfig: IConfig = {
+	type: InsightType.Image,
+	encoding: 'hex',
+	imageFormat: 'jpeg'
+};
+
+export class ImageInsight implements IInsight {
+
+	public static readonly types = [InsightType.Image];
+	public readonly types = ImageInsight.types;
+
+	private _options: IConfig;
+
+	private imageEle: HTMLImageElement;
+
+	constructor(container: HTMLElement, options: IConfig, @INotificationService private _notificationService: INotificationService) {
+		this._options = mixin(options, defaultConfig, false);
+		this.imageEle = $('img');
+		container.appendChild(this.imageEle);
+	}
+
+	public layout() {
+
+	}
+
+	public dispose() {
+
+	}
+
+	set options(config: IConfig) {
+		this._options = mixin(config, defaultConfig, false);
+	}
+
+	get options(): IConfig {
+		return this._options;
+	}
+
+	set data(data: IInsightData) {
+		const that = this;
+		if (data.rows && data.rows.length > 0 && data.rows[0].length > 0) {
+			let img = data.rows[0][0];
+			if (this._options.encoding === 'hex') {
+				img = ImageInsight._hexToBase64(img);
+			}
+			this.imageEle.onerror = function () {
+				this.src = require.toUrl(`./media/images/invalidImage.png`);
+				that._notificationService.error(nls.localize('invalidImage', "Table does not contain a valid image"));
+			};
+			this.imageEle.src = `data:image/${this._options.imageFormat};base64,${img}`;
+		}
+	}
+
+	private static _hexToBase64(hexVal: string) {
+
+		if (startsWith(hexVal, '0x')) {
+			hexVal = hexVal.slice(2);
+		}
+		// should be able to be replaced with new Buffer(hexVal, 'hex').toString('base64')
+		return btoa(String.fromCharCode.apply(null, hexVal.replace(/\r|\n/g, '').replace(/([\da-fA-F]{2}) ?/g, '0x$1 ').replace(/ +$/, '').split(' ').map(v => Number(v))));
+	}
+}