UI: Fix pageLink without pagination. Minor fixes

@@ -8997,10 +8997,10 @@
       "integrity": "sha512-4O3GWAYJaauMCILm07weko2rHA8a4kjn7+8Lg4s1d7SxwS/3IpkVD/GljbRrIJ1c1W/XGJ3GbuK7RyYZEJChhw=="
     },
     "ngx-flowchart": {
-      "version": "git://github.com/thingsboard/ngx-flowchart.git#a4157b0eef2eb3646ef920447c7b06b39d54f87f",
+      "version": "git://github.com/thingsboard/ngx-flowchart.git#7a02f4748b5e7821a883c903107af5f20415d026",
       "from": "git://github.com/thingsboard/ngx-flowchart.git#master",
       "requires": {
-        "tslib": "^1.10.0"
+        "tslib": "^1.13.0"
       },
       "dependencies": {
         "tslib": {

@@ -337,6 +337,7 @@ export class WidgetSubscription implements IWidgetSubscription {
   }
 
   private initDataSubscription(): Observable<any> {
+    this.notifyDataLoading();
     const initDataSubscriptionSubject = new ReplaySubject(1);
     this.loadStDiff().subscribe(() => {
       if (!this.ctx.aliasController) {
@@ -431,6 +432,7 @@ export class WidgetSubscription implements IWidgetSubscription {
         });
         this.configureLoadedData();
         this.hasResolvedData = this.datasources.length > 0;
+        this.updateDataTimewindow();
         this.notifyDataLoaded();
         this.onDataUpdated(true);
       })
@@ -731,6 +733,7 @@ export class WidgetSubscription implements IWidgetSubscription {
       if (this.type === widgetType.alarm) {
         this.updateAlarmDataSubscription();
       } else {
+        this.notifyDataLoading();
         this.dataSubscribe();
       }
     }
@@ -831,13 +834,21 @@ export class WidgetSubscription implements IWidgetSubscription {
     }
   }
 
-  private dataSubscribe() {
+  private updateDataTimewindow() {
     if (!this.hasDataPageLink) {
       if (this.type === widgetType.timeseries && this.timeWindowConfig) {
         this.updateRealtimeSubscription();
         if (this.comparisonEnabled) {
           this.updateSubscriptionForComparison();
         }
+      }
+    }
+  }
+
+  private dataSubscribe() {
+    if (!this.hasDataPageLink) {
+      if (this.type === widgetType.timeseries && this.timeWindowConfig) {
+        this.updateDataTimewindow();
         if (this.subscriptionTimewindow.fixedWindow) {
           this.onDataUpdated();
         }
@@ -1025,6 +1036,11 @@ export class WidgetSubscription implements IWidgetSubscription {
     }
   }
 
+  private notifyDataLoading() {
+    this.loadingData = true;
+    this.callbacks.dataLoading(this);
+  }
+
   private notifyDataLoaded() {
     this.loadingData = false;
     this.callbacks.dataLoading(this);
@@ -1268,6 +1284,7 @@ export class WidgetSubscription implements IWidgetSubscription {
       if (this.caulculateLegendData) {
         this.updateLegend(index, data.data, detectChanges);
       }
+      this.notifyDataLoaded();
       this.onDataUpdated(detectChanges);
     }
   }

@@ -330,7 +330,7 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
       this.defaultPageSize = pageSize;
     }
     this.pageSizeOptions = [this.defaultPageSize, this.defaultPageSize * 2, this.defaultPageSize * 3];
-    this.pageLink.pageSize = this.displayPagination ? this.defaultPageSize : Number.POSITIVE_INFINITY;
+    this.pageLink.pageSize = this.displayPagination ? this.defaultPageSize : 1024;
 
     this.pageLink.searchPropagatedAlarms = isDefined(this.widgetConfig.searchPropagatedAlarms)
       ? this.widgetConfig.searchPropagatedAlarms : true;
@@ -535,10 +535,15 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
     } else {
       this.pageLink.page = 0;
     }
-    this.pageLink.sortOrder = {
-      key: findEntityKeyByColumnDef(this.sort.active, this.columns),
-      direction: Direction[this.sort.direction.toUpperCase()]
-    };
+    const key = findEntityKeyByColumnDef(this.sort.active, this.columns);
+    if (key) {
+      this.pageLink.sortOrder = {
+        key,
+        direction: Direction[this.sort.direction.toUpperCase()]
+      };
+    } else {
+      this.pageLink.sortOrder = null;
+    }
     const sortOrderLabel = fromEntityColumnDef(this.sort.active, this.columns);
     const keyFilters: KeyFilter[] = null; // TODO:
     this.alarmsDatasource.loadAlarms(this.pageLink, sortOrderLabel, keyFilters);

@@ -240,7 +240,7 @@ export class EntitiesTableWidgetComponent extends PageComponent implements OnIni
       this.defaultPageSize = pageSize;
     }
     this.pageSizeOptions = [this.defaultPageSize, this.defaultPageSize * 2, this.defaultPageSize * 3];
-    this.pageLink.pageSize = this.displayPagination ? this.defaultPageSize : Number.POSITIVE_INFINITY;
+    this.pageLink.pageSize = this.displayPagination ? this.defaultPageSize : 1024;
 
     const cssString = constructTableCssString(this.widgetConfig);
     const cssParser = new cssjs();
@@ -460,10 +460,15 @@ export class EntitiesTableWidgetComponent extends PageComponent implements OnIni
     } else {
       this.pageLink.page = 0;
     }
-    this.pageLink.sortOrder = {
-      key: findEntityKeyByColumnDef(this.sort.active, this.columns),
-      direction: Direction[this.sort.direction.toUpperCase()]
-    };
+    const key = findEntityKeyByColumnDef(this.sort.active, this.columns);
+    if (key) {
+      this.pageLink.sortOrder = {
+        key,
+        direction: Direction[this.sort.direction.toUpperCase()]
+      };
+    } else {
+      this.pageLink.sortOrder = null;
+    }
     const sortOrderLabel = fromEntityColumnDef(this.sort.active, this.columns);
     const keyFilters: KeyFilter[] = null; // TODO:
     this.entityDatasource.loadEntities(this.pageLink, sortOrderLabel, keyFilters);

@@ -159,7 +159,7 @@ function parseTemplate(template: string, data: { $datasource?: Datasource, [key:
     }
     template = createLabelFromDatasource(data.$datasource, template);
 
-    let match = varsRegex.exec(template);
+    let match = /\${([^}]*)}/g.exec(template);
     while (match !== null) {
       const variable = match[0];
       let label = match[1];
@@ -186,7 +186,7 @@ function parseTemplate(template: string, data: { $datasource?: Datasource, [key:
         textValue = value;
       }
       template = template.split(variable).join(textValue);
-      match = varsRegex.exec(template);
+      match = /\${([^}]*)}/g.exec(template);
     }
 
     let actionTags: string;

@@ -96,7 +96,10 @@ export function entityDataSortOrderFromString(strSortOrder: string, columns: Ent
   if (!property && !property.length) {
     return null;
   }
-  const column = findColumnByLabel(property, columns);
+  let column = findColumnByLabel(property, columns);
+  if (!column) {
+    column = findColumnByName(property, columns);
+  }
   if (column && column.entityKey) {
     return {key: column.entityKey, direction};
   }
@@ -113,13 +116,22 @@ export function findColumnByEntityKey(key: EntityKey, columns: EntityColumn[]):
 }
 
 export function findEntityKeyByColumnDef(def: string, columns: EntityColumn[]): EntityKey {
-  return findColumnByDef(def, columns).entityKey;
+  if (def) {
+    const column = findColumnByDef(def, columns);
+    return column ? column.entityKey : null;
+  } else {
+    return null;
+  }
 }
 
 export function findColumn(searchProperty: string, searchValue: string, columns: EntityColumn[]): EntityColumn {
   return columns.find(theColumn => theColumn[searchProperty] === searchValue);
 }
 
+export function findColumnByName(name: string, columns: EntityColumn[]): EntityColumn {
+  return findColumn('name', name, columns);
+}
+
 export function findColumnByLabel(label: string, columns: EntityColumn[]): EntityColumn {
   let column: EntityColumn;
   const alarmColumns = columns.filter(c => c.type === DataKeyType.alarm);