Add QR Code widget

@@ -149,6 +149,24 @@
         "dataKeySettingsSchema": "{\n    \"schema\": {\n        \"type\": \"object\",\n        \"title\": \"DataKeySettings\",\n        \"properties\": {},\n        \"required\": []\n    },\n    \"form\": []\n}",
         "dataKeySettingsSchema": "{\n    \"schema\": {\n        \"type\": \"object\",\n        \"title\": \"DataKeySettings\",\n        \"properties\": {},\n        \"required\": []\n    },\n    \"form\": []\n}",
         "defaultConfig": "{\"timewindow\":{\"realtime\":{\"interval\":1000,\"timewindowMs\":86400000},\"aggregation\":{\"type\":\"NONE\",\"limit\":200}},\"showTitle\":true,\"backgroundColor\":\"rgb(255, 255, 255)\",\"color\":\"rgba(0, 0, 0, 0.87)\",\"padding\":\"4px\",\"settings\":{\"nodeRelationQueryFunction\":\"/**\\n\\n// Function should return relations query object for current node used to fetch entity children.\\n// Function can return 'default' string value. In this case default relations query will be used.\\n\\n// The following example code will construct simple relations query that will fetch relations of type 'Contains'\\n// from the current entity.\\n\\nvar entity = nodeCtx.entity;\\nvar query = {\\n    parameters: {\\n        rootId: entity.id.id,\\n        rootType: entity.id.entityType,\\n        direction: \\\"FROM\\\",\\n        maxLevel: 1\\n    },\\n    filters: [{\\n        relationType: \\\"Contains\\\",\\n        entityTypes: []\\n    }]\\n};\\nreturn query;\\n\\n**/\\n\",\"nodeHasChildrenFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node has children (whether it can be expanded).\\n\\n// The following example code will restrict entities hierarchy expansion up to third level.\\n\\nreturn nodeCtx.level <= 2;\\n\\n// The next example code will restrict entities expansion according to the value of example 'nodeHasChildren' attribute.\\n\\nvar data = nodeCtx.data;\\nif (data.hasOwnProperty('nodeHasChildren') && data['nodeHasChildren'] !== null) {\\n    return data['nodeHasChildren'] === 'true';\\n} else {\\n    return true;\\n}\\n  \\n**/\\n \",\"nodeTextFunction\":\"/**\\n\\n// Function should return text (can be HTML code) for the current node.\\n\\n// The following example code will generate node text consisting of entity name and temperature if temperature value is present in entity attributes/timeseries.\\n\\nvar data =  nodeCtx.data;\\nvar entity = nodeCtx.entity;\\nvar text = entity.name;\\nif (data.hasOwnProperty('temperature') && data['temperature'] !== null) {\\n    text += \\\" <b>\\\"+ data['temperature'] +\\\" °C</b>\\\";\\n}\\nreturn text;\\n\\n**/\",\"nodeIconFunction\":\"/** \\n\\n// Function should return node icon info object.\\n// Resulting object should contain either 'materialIcon' or 'iconUrl' property. \\n// Where:\\n    - 'materialIcon' - name of the material icon to be used from the Material Icons Library (https://material.io/tools/icons);\\n    - 'iconUrl' - url of the external image to be used as node icon.\\n// Function can return 'default' string value. In this case default icons according to entity type will be used.\\n\\n// The following example code shows how to use external image for devices which name starts with 'Test' and use \\n// default icons for the rest of entities.\\n\\nvar entity = nodeCtx.entity;\\nif (entity.id.entityType === 'DEVICE' && entity.name.startsWith('Test')) {\\n    return {iconUrl: 'https://avatars1.githubusercontent.com/u/14793288?v=4&s=117'};\\n} else {\\n    return 'default';\\n}\\n \\n**/\",\"nodeDisabledFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node should be disabled (not selectable).\\n\\n// The following example code will disable current node according to the value of example 'nodeDisabled' attribute.\\n\\nvar data = nodeCtx.data;\\nif (data.hasOwnProperty('nodeDisabled') && data['nodeDisabled'] !== null) {\\n    return data['nodeDisabled'] === 'true';\\n} else {\\n    return false;\\n}\\n  \\n**/\\n\",\"nodesSortFunction\":\"/**\\n\\n// This function is used to sort nodes of the same level. Function should compare two nodes and return \\n// integer value: \\n//     - less than 0 - sort nodeCtx1 to an index lower than nodeCtx2\\n//     - 0 - leave nodeCtx1 and nodeCtx2 unchanged with respect to each other\\n//     - greater than 0 - sort nodeCtx2 to an index lower than nodeCtx1\\n\\n// The following example code will sort entities first by entity type in alphabetical order then\\n// by entity name in alphabetical order.\\n\\nvar result = nodeCtx1.entity.id.entityType.localeCompare(nodeCtx2.entity.id.entityType);\\nif (result === 0) {\\n    result = nodeCtx1.entity.name.localeCompare(nodeCtx2.entity.name);\\n}\\nreturn result;\\n  \\n**/\",\"nodeOpenedFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node should be opened (expanded) when it first loaded.\\n\\n// The following example code will open by default nodes up to third level.\\n\\nreturn nodeCtx.level <= 2;\\n\\n**/\\n \"},\"title\":\"Entities hierarchy\",\"dropShadow\":true,\"enableFullscreen\":true,\"titleStyle\":{\"fontSize\":\"16px\",\"fontWeight\":400,\"padding\":\"5px 10px 5px 10px\"},\"useDashboardTimewindow\":false,\"showLegend\":false,\"datasources\":[{\"type\":\"function\",\"name\":\"Simulated\",\"dataKeys\":[{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Sin\",\"color\":\"#2196f3\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.472295003170325,\"funcBody\":\"return Math.round(1000*Math.sin(time/5000));\"},{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Cos\",\"color\":\"#4caf50\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.8926244886945558,\"funcBody\":\"return Math.round(1000*Math.cos(time/5000));\"},{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Random\",\"color\":\"#f44336\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.6401141393938932,\"funcBody\":\"var value = prevValue + Math.random() * 100 - 50;\\nvar multiplier = Math.pow(10, 2 || 0);\\nvar value = Math.round(value * multiplier) / multiplier;\\nif (value < -1000) {\\n\\tvalue = -1000;\\n} else if (value > 1000) {\\n\\tvalue = 1000;\\n}\\nreturn value;\"}]}],\"widgetStyle\":{},\"actions\":{}}"
         "defaultConfig": "{\"timewindow\":{\"realtime\":{\"interval\":1000,\"timewindowMs\":86400000},\"aggregation\":{\"type\":\"NONE\",\"limit\":200}},\"showTitle\":true,\"backgroundColor\":\"rgb(255, 255, 255)\",\"color\":\"rgba(0, 0, 0, 0.87)\",\"padding\":\"4px\",\"settings\":{\"nodeRelationQueryFunction\":\"/**\\n\\n// Function should return relations query object for current node used to fetch entity children.\\n// Function can return 'default' string value. In this case default relations query will be used.\\n\\n// The following example code will construct simple relations query that will fetch relations of type 'Contains'\\n// from the current entity.\\n\\nvar entity = nodeCtx.entity;\\nvar query = {\\n    parameters: {\\n        rootId: entity.id.id,\\n        rootType: entity.id.entityType,\\n        direction: \\\"FROM\\\",\\n        maxLevel: 1\\n    },\\n    filters: [{\\n        relationType: \\\"Contains\\\",\\n        entityTypes: []\\n    }]\\n};\\nreturn query;\\n\\n**/\\n\",\"nodeHasChildrenFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node has children (whether it can be expanded).\\n\\n// The following example code will restrict entities hierarchy expansion up to third level.\\n\\nreturn nodeCtx.level <= 2;\\n\\n// The next example code will restrict entities expansion according to the value of example 'nodeHasChildren' attribute.\\n\\nvar data = nodeCtx.data;\\nif (data.hasOwnProperty('nodeHasChildren') && data['nodeHasChildren'] !== null) {\\n    return data['nodeHasChildren'] === 'true';\\n} else {\\n    return true;\\n}\\n  \\n**/\\n \",\"nodeTextFunction\":\"/**\\n\\n// Function should return text (can be HTML code) for the current node.\\n\\n// The following example code will generate node text consisting of entity name and temperature if temperature value is present in entity attributes/timeseries.\\n\\nvar data =  nodeCtx.data;\\nvar entity = nodeCtx.entity;\\nvar text = entity.name;\\nif (data.hasOwnProperty('temperature') && data['temperature'] !== null) {\\n    text += \\\" <b>\\\"+ data['temperature'] +\\\" °C</b>\\\";\\n}\\nreturn text;\\n\\n**/\",\"nodeIconFunction\":\"/** \\n\\n// Function should return node icon info object.\\n// Resulting object should contain either 'materialIcon' or 'iconUrl' property. \\n// Where:\\n    - 'materialIcon' - name of the material icon to be used from the Material Icons Library (https://material.io/tools/icons);\\n    - 'iconUrl' - url of the external image to be used as node icon.\\n// Function can return 'default' string value. In this case default icons according to entity type will be used.\\n\\n// The following example code shows how to use external image for devices which name starts with 'Test' and use \\n// default icons for the rest of entities.\\n\\nvar entity = nodeCtx.entity;\\nif (entity.id.entityType === 'DEVICE' && entity.name.startsWith('Test')) {\\n    return {iconUrl: 'https://avatars1.githubusercontent.com/u/14793288?v=4&s=117'};\\n} else {\\n    return 'default';\\n}\\n \\n**/\",\"nodeDisabledFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node should be disabled (not selectable).\\n\\n// The following example code will disable current node according to the value of example 'nodeDisabled' attribute.\\n\\nvar data = nodeCtx.data;\\nif (data.hasOwnProperty('nodeDisabled') && data['nodeDisabled'] !== null) {\\n    return data['nodeDisabled'] === 'true';\\n} else {\\n    return false;\\n}\\n  \\n**/\\n\",\"nodesSortFunction\":\"/**\\n\\n// This function is used to sort nodes of the same level. Function should compare two nodes and return \\n// integer value: \\n//     - less than 0 - sort nodeCtx1 to an index lower than nodeCtx2\\n//     - 0 - leave nodeCtx1 and nodeCtx2 unchanged with respect to each other\\n//     - greater than 0 - sort nodeCtx2 to an index lower than nodeCtx1\\n\\n// The following example code will sort entities first by entity type in alphabetical order then\\n// by entity name in alphabetical order.\\n\\nvar result = nodeCtx1.entity.id.entityType.localeCompare(nodeCtx2.entity.id.entityType);\\nif (result === 0) {\\n    result = nodeCtx1.entity.name.localeCompare(nodeCtx2.entity.name);\\n}\\nreturn result;\\n  \\n**/\",\"nodeOpenedFunction\":\"/**\\n\\n// Function should return boolean value indicating whether current node should be opened (expanded) when it first loaded.\\n\\n// The following example code will open by default nodes up to third level.\\n\\nreturn nodeCtx.level <= 2;\\n\\n**/\\n \"},\"title\":\"Entities hierarchy\",\"dropShadow\":true,\"enableFullscreen\":true,\"titleStyle\":{\"fontSize\":\"16px\",\"fontWeight\":400,\"padding\":\"5px 10px 5px 10px\"},\"useDashboardTimewindow\":false,\"showLegend\":false,\"datasources\":[{\"type\":\"function\",\"name\":\"Simulated\",\"dataKeys\":[{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Sin\",\"color\":\"#2196f3\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.472295003170325,\"funcBody\":\"return Math.round(1000*Math.sin(time/5000));\"},{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Cos\",\"color\":\"#4caf50\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.8926244886945558,\"funcBody\":\"return Math.round(1000*Math.cos(time/5000));\"},{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Random\",\"color\":\"#f44336\",\"settings\":{\"columnWidth\":\"0px\",\"useCellStyleFunction\":false,\"cellStyleFunction\":\"\",\"useCellContentFunction\":false,\"cellContentFunction\":\"\"},\"_hash\":0.6401141393938932,\"funcBody\":\"var value = prevValue + Math.random() * 100 - 50;\\nvar multiplier = Math.pow(10, 2 || 0);\\nvar value = Math.round(value * multiplier) / multiplier;\\nif (value < -1000) {\\n\\tvalue = -1000;\\n} else if (value > 1000) {\\n\\tvalue = 1000;\\n}\\nreturn value;\"}]}],\"widgetStyle\":{},\"actions\":{}}"
       }
       }
+    },
+    {
+      "alias": "qr_code",
+      "name": "QR Code",
+      "image": "data:image/png;base64,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",
+      "description": "Displays QR code of calculated text from configured pattern or function with applied attributes or timeseries values.",
+      "descriptor": {
+        "type": "latest",
+        "sizeX": 4,
+        "sizeY": 3.5,
+        "resources": [],
+        "templateHtml": "<tb-qrcode-widget \n    [ctx]=\"ctx\">\n</tb-qrcode-widget>",
+        "templateCss": "#container {\n    overflow: auto;\n}\n\n.tbDatasource-container {\n    margin: 5px;\n    padding: 8px;\n}\n\n.tbDatasource-title {\n    font-size: 1.200rem;\n    font-weight: 500;\n    padding-bottom: 10px;\n}\n\n.tbDatasource-table {\n    width: 100%;\n    box-shadow: 0 0 10px #ccc;\n    border-collapse: collapse;\n    white-space: nowrap;\n    font-size: 1.000rem;\n    color: #757575;\n}\n\n.tbDatasource-table td {\n    position: relative;\n    border-top: 1px solid rgba(0, 0, 0, 0.12);\n    border-bottom: 1px solid rgba(0, 0, 0, 0.12);\n    padding: 0px 18px;\n    box-sizing: border-box;\n}",
+        "controllerScript": "self.onInit = function() {\n}\n\nself.onDataUpdated = function() {\n   self.ctx.$scope.qrCodeWidget.onDataUpdated();\n}\n\nself.typeParameters = function() {\n    return {\n        maxDatasources: 1,\n        dataKeysOptional: true,\n        singleEntity: true\n    };\n}\n\nself.onDestroy = function() {\n}\n\n",
+        "settingsSchema": "{\n    \"schema\": {\n        \"type\": \"object\",\n        \"title\": \"QR Code\",\n        \"properties\": {\n            \"qrCodeTextPattern\": {\n                \"title\": \"QR code text pattern (for ex. '${entityName} | ${keyName} - some text.')\",\n                \"type\": \"string\",\n                \"default\": \"${entityName}\"\n            },\n            \"useQrCodeTextFunction\": {\n                \"title\": \"Use QR code text function\",\n                \"type\": \"boolean\",\n                \"default\": false\n            },\n            \"qrCodeTextFunction\": {\n                \"title\": \"QR code text function: f(data)\",\n                \"type\": \"string\",\n                \"default\": \"return data['entityName'];\"\n            }\n        },\n        \"required\": []\n    },\n    \"form\": [\n        \"qrCodeTextPattern\",\n        \"useQrCodeTextFunction\",\n        {\n            \"key\": \"qrCodeTextFunction\",\n            \"type\": \"javascript\"\n        }\n    ]\n}\n",
+        "dataKeySettingsSchema": "{}\n",
+        "defaultConfig": "{\"datasources\":[{\"type\":\"function\",\"name\":\"function\",\"entityAliasId\":null,\"filterId\":null,\"dataKeys\":[{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Random\",\"color\":\"#2196f3\",\"settings\":{},\"_hash\":0.7036904308224163,\"funcBody\":\"var value = prevValue + Math.random() * 100 - 50;\\nvar multiplier = Math.pow(10, 2 || 0);\\nvar value = Math.round(value * multiplier) / multiplier;\\nif (value < -1000) {\\n\\tvalue = -1000;\\n} else if (value > 1000) {\\n\\tvalue = 1000;\\n}\\nreturn value;\"}]}],\"timewindow\":{\"realtime\":{\"timewindowMs\":60000}},\"showTitle\":true,\"backgroundColor\":\"#fff\",\"color\":\"rgba(0, 0, 0, 0.87)\",\"padding\":\"8px\",\"settings\":{\"qrCodeTextPattern\":\"${entityName}\",\"useQrCodeTextFunction\":false,\"qrCodeTextFunction\":\"return data['entityName'];\"},\"title\":\"QR Code\"}"
+      }
     }
     }
   ]
   ]
 }
 }

@@ -118,7 +118,8 @@
               "jquery",
               "jquery",
               "jquery.terminal",
               "jquery.terminal",
               "tooltipster",
               "tooltipster",
-              "jstree"
+              "jstree",
+              "qrcode"
             ]
             ]
           },
           },
           "configurations": {
           "configurations": {

@@ -77,6 +77,7 @@
     "objectpath": "^2.0.0",
     "objectpath": "^2.0.0",
     "prettier": "^2.1.2",
     "prettier": "^2.1.2",
     "prop-types": "^15.7.2",
     "prop-types": "^15.7.2",
+    "qrcode": "^1.4.4",
     "raphael": "^2.3.0",
     "raphael": "^2.3.0",
     "rc-select": "~10.5.1",
     "rc-select": "~10.5.1",
     "react": "~16.14.0",
     "react": "~16.14.0",

+<!--
+
+    Copyright © 2016-2021 The Thingsboard Authors
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<div fxLayout="column" fxLayoutAlign="center center" style="width: 100%; height: 100%;">
+  <canvas fxFlex #canvas [ngStyle]="{display: qrCodeText ? 'block' : 'none'}"></canvas>
+  <div *ngIf="!qrCodeText" translate>entity.no-data</div>
+</div>

+///
+/// Copyright © 2016-2021 The Thingsboard Authors
+///
+/// Licensed under the Apache License, Version 2.0 (the "License");
+/// you may not use this file except in compliance with the License.
+/// You may obtain a copy of the License at
+///
+///     http://www.apache.org/licenses/LICENSE-2.0
+///
+/// Unless required by applicable law or agreed to in writing, software
+/// distributed under the License is distributed on an "AS IS" BASIS,
+/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+/// See the License for the specific language governing permissions and
+/// limitations under the License.
+///
+
+import { AfterViewInit, ChangeDetectorRef, Component, ElementRef, Input, OnInit, ViewChild } from '@angular/core';
+import { PageComponent } from '@shared/components/page.component';
+import { WidgetContext } from '@home/models/widget-component.models';
+import { Store } from '@ngrx/store';
+import { AppState } from '@core/core.state';
+import QRCode from 'qrcode';
+import {
+  fillPattern,
+  parseData,
+  parseFunction,
+  processPattern,
+  safeExecute
+} from '@home/components/widget/lib/maps/common-maps-utils';
+import { FormattedData } from '@home/components/widget/lib/maps/map-models';
+import { DatasourceData } from '@shared/models/widget.models';
+import { DataKeyType } from '@shared/models/telemetry/telemetry.models';
+
+interface QrCodeWidgetSettings {
+  qrCodeTextPattern: string;
+  useQrCodeTextFunction: boolean;
+  qrCodeTextFunction: string;
+}
+
+type QrCodeTextFunction = (data: FormattedData) => string;
+
+@Component({
+  selector: 'tb-qrcode-widget',
+  templateUrl: './qrcode-widget.component.html',
+  styleUrls: []
+})
+export class QrCodeWidgetComponent extends PageComponent implements OnInit, AfterViewInit {
+
+  settings: QrCodeWidgetSettings;
+  qrCodeTextFunction: QrCodeTextFunction;
+
+  @Input()
+  ctx: WidgetContext;
+
+  qrCodeText: string;
+
+  private viewInited: boolean;
+  private scheduleUpdateCanvas: boolean;
+
+  @ViewChild('canvas', {static: false}) canvasRef: ElementRef<HTMLCanvasElement>;
+
+  constructor(protected store: Store<AppState>,
+              protected cd: ChangeDetectorRef) {
+    super(store);
+  }
+
+  ngOnInit(): void {
+    this.ctx.$scope.qrCodeWidget = this;
+    this.settings = this.ctx.settings;
+    this.qrCodeTextFunction = this.settings.useQrCodeTextFunction ? parseFunction(this.settings.qrCodeTextFunction, ['data']) : null;
+  }
+
+  ngAfterViewInit(): void {
+    this.viewInited = true;
+    if (this.scheduleUpdateCanvas) {
+      this.scheduleUpdateCanvas = false;
+      this.updateCanvas();
+    }
+  }
+
+  public onDataUpdated() {
+    let initialData: DatasourceData[];
+    let qrCodeText: string;
+    if (this.ctx.data?.length) {
+      initialData = this.ctx.data;
+    } else if (this.ctx.datasources?.length) {
+      initialData = [
+        {
+          datasource: this.ctx.datasources[0],
+          dataKey: {
+            type: DataKeyType.attribute,
+            name: 'empty'
+          },
+          data: []
+        }
+      ];
+    }
+    if (initialData) {
+      const data = parseData(initialData);
+      const dataSourceData = data[0];
+      const pattern = this.settings.useQrCodeTextFunction ?
+        safeExecute(this.qrCodeTextFunction, [dataSourceData]) : this.settings.qrCodeTextPattern;
+      const replaceInfo = processPattern(pattern, data);
+      qrCodeText = fillPattern(pattern, replaceInfo, dataSourceData);
+    }
+    this.updateQrCodeText(qrCodeText);
+  }
+
+  private updateQrCodeText(newQrCodeText: string): void {
+    if (this.qrCodeText !== newQrCodeText) {
+      this.qrCodeText = newQrCodeText;
+      if (this.qrCodeText) {
+        this.updateCanvas();
+      }
+      this.cd.detectChanges();
+    }
+  }
+
+  private updateCanvas() {
+    if (this.viewInited) {
+      QRCode.toCanvas(this.canvasRef.nativeElement, this.qrCodeText);
+      this.canvasRef.nativeElement.style.width = 'auto';
+      this.canvasRef.nativeElement.style.height = 'auto';
+    } else {
+      this.scheduleUpdateCanvas = true;
+    }
+  }
+
+}

@@ -39,6 +39,7 @@ import { NavigationCardsWidgetComponent } from '@home/components/widget/lib/navi
 import { NavigationCardWidgetComponent } from '@home/components/widget/lib/navigation-card-widget.component';
 import { NavigationCardWidgetComponent } from '@home/components/widget/lib/navigation-card-widget.component';
 import { EdgesOverviewWidgetComponent } from '@home/components/widget/lib/edges-overview-widget.component';
 import { EdgesOverviewWidgetComponent } from '@home/components/widget/lib/edges-overview-widget.component';
 import { JsonInputWidgetComponent } from '@home/components/widget/lib/json-input-widget.component';
 import { JsonInputWidgetComponent } from '@home/components/widget/lib/json-input-widget.component';
+import { QrCodeWidgetComponent } from '@home/components/widget/lib/qrcode-widget.component';
 
 
 @NgModule({
 @NgModule({
   declarations:
   declarations:
@@ -58,7 +59,8 @@ import { JsonInputWidgetComponent } from '@home/components/widget/lib/json-input
       PhotoCameraInputWidgetComponent,
       PhotoCameraInputWidgetComponent,
       GatewayFormComponent,
       GatewayFormComponent,
       NavigationCardsWidgetComponent,
       NavigationCardsWidgetComponent,
-      NavigationCardWidgetComponent
+      NavigationCardWidgetComponent,
+      QrCodeWidgetComponent
     ],
     ],
   imports: [
   imports: [
     CommonModule,
     CommonModule,
@@ -80,7 +82,8 @@ import { JsonInputWidgetComponent } from '@home/components/widget/lib/json-input
     PhotoCameraInputWidgetComponent,
     PhotoCameraInputWidgetComponent,
     GatewayFormComponent,
     GatewayFormComponent,
     NavigationCardsWidgetComponent,
     NavigationCardsWidgetComponent,
-    NavigationCardWidgetComponent
+    NavigationCardWidgetComponent,
+    QrCodeWidgetComponent
   ],
   ],
   providers: [
   providers: [
     CustomDialogService,
     CustomDialogService,

@@ -2774,7 +2774,25 @@ browserstack@^1.5.1:
   dependencies:
   dependencies:
     https-proxy-agent "^2.2.1"
     https-proxy-agent "^2.2.1"
 
 
-buffer-from@^1.0.0:
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha1-+PeLdniYiO858gXNY39o5wISKyw=
+
+buffer-from@^1.0.0, buffer-from@^1.1.1:
   version "1.1.1"
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
@@ -2798,7 +2816,7 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     ieee754 "^1.1.4"
     isarray "^1.0.0"
     isarray "^1.0.0"
 
 
-buffer@^5.5.0:
+buffer@^5.4.3, buffer@^5.5.0:
   version "5.7.1"
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
   integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
   integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
@@ -3953,6 +3971,11 @@ diffie-hellman@^5.0.0:
     miller-rabin "^4.0.0"
     miller-rabin "^4.0.0"
     randombytes "^2.0.0"
     randombytes "^2.0.0"
 
 
+dijkstrajs@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/dijkstrajs/-/dijkstrajs-1.0.2.tgz#2e48c0d3b825462afe75ab4ad5e829c8ece36257"
+  integrity sha512-QV6PMaHTCNmKSeP6QoXhVTw9snc9VD8MulTT0Bd99Pacp4SS1cjcrYPgBPmibqKVtMJJfqC6XvOXgPMEEPH/fg==
+
 dir-glob@^3.0.1:
 dir-glob@^3.0.1:
   version "3.0.1"
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/dir-glob/-/dir-glob-3.0.1.tgz#56dbf73d992a4a93ba1584f4534063fd2e41717f"
   resolved "https://registry.yarnpkg.com/dir-glob/-/dir-glob-3.0.1.tgz#56dbf73d992a4a93ba1584f4534063fd2e41717f"
@@ -5670,6 +5693,11 @@ isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
   integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
   integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
 
 
+isarray@^2.0.1:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.5.tgz#8af1e4c1221244cc62459faf38940d4e644a5723"
+  integrity sha512-xHjhDr3cNBK0BzdUJSPXZntQUx/mwMS5Rw4A7lPJ90XGAO6ISP/ePDNuo0vhqOZU+UD5JoodwCAAoZQd3FeAKw==
+
 isbinaryfile@^4.0.6:
 isbinaryfile@^4.0.6:
   version "4.0.6"
   version "4.0.6"
   resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-4.0.6.tgz#edcb62b224e2b4710830b67498c8e4e5a4d2610b"
   resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-4.0.6.tgz#edcb62b224e2b4710830b67498c8e4e5a4d2610b"
@@ -7503,6 +7531,11 @@ pkg-dir@^4.1.0:
   dependencies:
   dependencies:
     find-up "^4.0.0"
     find-up "^4.0.0"
 
 
+pngjs@^3.3.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.4.0.tgz#99ca7d725965fb655814eaf65f38f12bbdbf555f"
+  integrity sha512-NCrCHhWmnQklfH4MtJMRjZ2a8c80qXeMlQMv2uVp9ISJMTt562SbGd6n2oq0PaPgKm7Z6pL9E2UlLIhC+SHL3w==
+
 pnp-webpack-plugin@1.6.4:
 pnp-webpack-plugin@1.6.4:
   version "1.6.4"
   version "1.6.4"
   resolved "https://registry.yarnpkg.com/pnp-webpack-plugin/-/pnp-webpack-plugin-1.6.4.tgz#c9711ac4dc48a685dabafc86f8b6dd9f8df84149"
   resolved "https://registry.yarnpkg.com/pnp-webpack-plugin/-/pnp-webpack-plugin-1.6.4.tgz#c9711ac4dc48a685dabafc86f8b6dd9f8df84149"
@@ -8007,6 +8040,19 @@ qjobs@^1.2.0:
   resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
   resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
   integrity sha512-8YOJEHtxpySA3fFDyCRxA+UUV+fA+rTWnuWvylOK/NCjhY+b4ocCtmu8TtsWb+mYeU+GCHf/S66KZF/AsteKHg==
   integrity sha512-8YOJEHtxpySA3fFDyCRxA+UUV+fA+rTWnuWvylOK/NCjhY+b4ocCtmu8TtsWb+mYeU+GCHf/S66KZF/AsteKHg==
 
 
+qrcode@^1.4.4:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/qrcode/-/qrcode-1.4.4.tgz#f0c43568a7e7510a55efc3b88d9602f71963ea83"
+  integrity sha512-oLzEC5+NKFou9P0bMj5+v6Z40evexeE29Z9cummZXZ9QXyMr3lphkURzxjXgPJC5azpxcshoDWV1xE46z+/c3Q==
+  dependencies:
+    buffer "^5.4.3"
+    buffer-alloc "^1.2.0"
+    buffer-from "^1.1.1"
+    dijkstrajs "^1.0.1"
+    isarray "^2.0.1"
+    pngjs "^3.3.0"
+    yargs "^13.2.4"
+
 qs@6.7.0:
 qs@6.7.0:
   version "6.7.0"
   version "6.7.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
@@ -10389,7 +10435,7 @@ yargs-parser@^20.2.2:
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.7.tgz#61df85c113edfb5a7a4e36eb8aa60ef423cbc90a"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.7.tgz#61df85c113edfb5a7a4e36eb8aa60ef423cbc90a"
   integrity sha512-FiNkvbeHzB/syOjIUxFDCnhSfzAL8R5vs40MgLFBorXACCOAEaWu0gRZl14vG8MR9AOJIZbmkjhusqBYZ3HTHw==
   integrity sha512-FiNkvbeHzB/syOjIUxFDCnhSfzAL8R5vs40MgLFBorXACCOAEaWu0gRZl14vG8MR9AOJIZbmkjhusqBYZ3HTHw==
 
 
-yargs@^13.3.2:
+yargs@^13.2.4, yargs@^13.3.2:
   version "13.3.2"
   version "13.3.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"
   integrity sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==
   integrity sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==