Dashboard page fixes and improvements

@@ -17,7 +17,7 @@
 -->
 <div fxLayout="column" class="mat-content mat-padding">
   <div fxLayout="row" *ngFor="let alias of entityAliasesInfo | keyvalue">
-    <mat-form-field>
+    <mat-form-field fxFlex>
       <mat-label>{{alias.value.alias}}</mat-label>
       <mat-select [(ngModel)]="alias.value.selectedId"
                   (ngModelChange)="currentAliasEntityChanged(alias.key, alias.value.selectedId)">

@@ -22,6 +22,7 @@ export const ALIASES_ENTITY_SELECT_PANEL_DATA = new InjectionToken<any>('Aliases
 
 export interface AliasesEntitySelectPanelData {
   aliasController: IAliasController;
+  entityAliasesInfo: {[aliasId: string]: AliasInfo};
 }
 
 @Component({
@@ -31,18 +32,10 @@ export interface AliasesEntitySelectPanelData {
 })
 export class AliasesEntitySelectPanelComponent {
 
-  entityAliasesInfo: {[aliasId: string]: AliasInfo} = {};
+  entityAliasesInfo: {[aliasId: string]: AliasInfo};
 
   constructor(@Inject(ALIASES_ENTITY_SELECT_PANEL_DATA) public data: AliasesEntitySelectPanelData) {
-    const allEntityAliases = this.data.aliasController.getEntityAliases();
-    for (const aliasId of Object.keys(allEntityAliases)) {
-      const aliasInfo = this.data.aliasController.getInstantAliasInfo(aliasId);
-      if (aliasInfo && !aliasInfo.resolveMultiple && aliasInfo.currentEntity
-        && aliasInfo.resolvedEntities.length > 1) {
-        this.entityAliasesInfo[aliasId] = deepClone(aliasInfo);
-        this.entityAliasesInfo[aliasId].selectedId = aliasInfo.currentEntity.id;
-      }
-    }
+    this.entityAliasesInfo = this.data.entityAliasesInfo;
   }
 
   public currentAliasEntityChanged(aliasId: string, selectedId: string) {

@@ -19,13 +19,13 @@
   <button mat-icon-button
           cdkOverlayOrigin #aliasEntitySelectPanelOrigin="cdkOverlayOrigin"
           (click)="openEditMode()"
-          matTooltip="{{ 'entity.select-entities' | translate }}"
+          matTooltip="{{ hasSelectableAliasEntities ? ('entity.select-entities' | translate) : '' }}"
           [matTooltipPosition]="tooltipPosition">
     <mat-icon class="material-icons">devices_other</mat-icon>
   </button>
   <span fxHide.lt-lg
         (click)="openEditMode()"
-        matTooltip="{{ 'entity.select-entities' | translate }}"
+        matTooltip="{{ hasSelectableAliasEntities ? ('entity.select-entities' | translate) : '' }}"
         [matTooltipPosition]="tooltipPosition">
     {{displayValue}}
   </span>

@@ -14,23 +14,21 @@
 /// limitations under the License.
 ///
 
-import { Component, Inject, Input, OnDestroy, OnInit, ViewChild, ViewContainerRef } from '@angular/core';
+import { Component, Input, OnDestroy, OnInit, ViewChild, ViewContainerRef } from '@angular/core';
 import { TooltipPosition } from '@angular/material/tooltip';
-import { IAliasController } from '@core/api/widget-api.models';
+import { AliasInfo, IAliasController } from '@core/api/widget-api.models';
 import { CdkOverlayOrigin, ConnectedPosition, Overlay, OverlayConfig, OverlayRef } from '@angular/cdk/overlay';
 import { TranslateService } from '@ngx-translate/core';
 import { Subscription } from 'rxjs';
 import { BreakpointObserver } from '@angular/cdk/layout';
-import { DOCUMENT } from '@angular/common';
-import { WINDOW } from '@core/services/window.service';
 import { ComponentPortal, PortalInjector } from '@angular/cdk/portal';
 import {
   ALIASES_ENTITY_SELECT_PANEL_DATA,
   AliasesEntitySelectPanelComponent,
   AliasesEntitySelectPanelData
 } from './aliases-entity-select-panel.component';
+import { deepClone } from '@core/utils';
 
-// @dynamic
 @Component({
   selector: 'tb-aliases-entity-select',
   templateUrl: './aliases-entity-select.component.html',
@@ -38,8 +36,17 @@ import {
 })
 export class AliasesEntitySelectComponent implements OnInit, OnDestroy {
 
+  aliasControllerValue: IAliasController;
+
   @Input()
-  aliasController: IAliasController;
+  set aliasController(aliasController: IAliasController) {
+    this.aliasControllerValue = aliasController;
+    this.setupAliasController(this.aliasControllerValue);
+  }
+
+  get aliasController(): IAliasController {
+    return this.aliasControllerValue;
+  }
 
   @Input()
   tooltipPosition: TooltipPosition = 'above';
@@ -49,32 +56,43 @@ export class AliasesEntitySelectComponent implements OnInit, OnDestroy {
   @ViewChild('aliasEntitySelectPanelOrigin') aliasEntitySelectPanelOrigin: CdkOverlayOrigin;
 
   displayValue: string;
+  entityAliasesInfo: {[aliasId: string]: AliasInfo} = {};
+  hasSelectableAliasEntities = false;
 
   private rxSubscriptions = new Array<Subscription>();
 
   constructor(private translate: TranslateService,
               private overlay: Overlay,
               private breakpointObserver: BreakpointObserver,
-              private viewContainerRef: ViewContainerRef,
-              @Inject(DOCUMENT) private document: Document,
-              @Inject(WINDOW) private window: Window) {
+              private viewContainerRef: ViewContainerRef) {
+  }
+
+  private setupAliasController(aliasController: IAliasController) {
+    this.rxSubscriptions.forEach((subscription) => {
+      subscription.unsubscribe();
+    });
+    this.rxSubscriptions.length = 0;
+    if (aliasController) {
+      this.rxSubscriptions.push(aliasController.entityAliasesChanged.subscribe(
+        () => {
+          setTimeout(() => {
+            this.updateDisplayValue();
+            this.updateEntityAliasesInfo();
+          }, 0);
+        }
+      ));
+      this.rxSubscriptions.push(aliasController.entityAliasResolved.subscribe(
+        () => {
+          setTimeout(() => {
+            this.updateDisplayValue();
+            this.updateEntityAliasesInfo();
+          }, 0);
+        }
+      ));
+    }
   }
 
   ngOnInit(): void {
-    this.rxSubscriptions.push(this.aliasController.entityAliasesChanged.subscribe(
-      () => {
-        setTimeout(() => {
-          this.updateDisplayValue();
-        }, 0);
-      }
-    ));
-    this.rxSubscriptions.push(this.aliasController.entityAliasResolved.subscribe(
-      () => {
-        setTimeout(() => {
-          this.updateDisplayValue();
-        }, 0);
-      }
-    ));
   }
 
   ngOnDestroy(): void {
@@ -85,48 +103,20 @@ export class AliasesEntitySelectComponent implements OnInit, OnDestroy {
   }
 
   openEditMode() {
-    if (this.disabled) {
+    if (this.disabled || !this.hasSelectableAliasEntities) {
       return;
     }
-    const panelHeight = this.breakpointObserver.isMatched('min-height: 350px') ? 250 : 150;
-    const panelWidth = 300;
     const position = this.overlay.position();
     const config = new OverlayConfig({
       panelClass: 'tb-aliases-entity-select-panel',
       backdropClass: 'cdk-overlay-transparent-backdrop',
       hasBackdrop: true,
     });
-    const el = this.aliasEntitySelectPanelOrigin.elementRef.nativeElement;
-    const offset = el.getBoundingClientRect();
-    const scrollTop = this.window.pageYOffset || this.document.documentElement.scrollTop || this.document.body.scrollTop || 0;
-    const scrollLeft = this.window.pageXOffset || this.document.documentElement.scrollLeft || this.document.body.scrollLeft || 0;
-    const bottomY = offset.bottom - scrollTop;
-    const leftX = offset.left - scrollLeft;
-    let originX;
-    let originY;
-    let overlayX;
-    let overlayY;
-    const wHeight = this.document.documentElement.clientHeight;
-    const wWidth = this.document.documentElement.clientWidth;
-    if (bottomY + panelHeight > wHeight) {
-      originY = 'top';
-      overlayY = 'bottom';
-    } else {
-      originY = 'bottom';
-      overlayY = 'top';
-    }
-    if (leftX + panelWidth > wWidth) {
-      originX = 'end';
-      overlayX = 'end';
-    } else {
-      originX = 'start';
-      overlayX = 'start';
-    }
     const connectedPosition: ConnectedPosition = {
-      originX,
-      originY,
-      overlayX,
-      overlayY
+      originX: 'start',
+      originY: 'bottom',
+      overlayX: 'start',
+      overlayY: 'top'
     };
     config.positionStrategy = position.flexibleConnectedTo(this.aliasEntitySelectPanelOrigin.elementRef)
       .withPositions([connectedPosition]);
@@ -138,7 +128,8 @@ export class AliasesEntitySelectComponent implements OnInit, OnDestroy {
     const injector = this._createAliasesEntitySelectPanelInjector(
       overlayRef,
       {
-        aliasController: this.aliasController
+        aliasController: this.aliasController,
+        entityAliasesInfo: this.entityAliasesInfo
       }
     );
     overlayRef.attach(new ComponentPortal(AliasesEntitySelectPanelComponent, this.viewContainerRef, injector));
@@ -180,4 +171,19 @@ export class AliasesEntitySelectComponent implements OnInit, OnDestroy {
     this.displayValue = displayValue;
   }
 
+  private updateEntityAliasesInfo() {
+    const allEntityAliases = this.aliasController.getEntityAliases();
+    this.entityAliasesInfo = {};
+    this.hasSelectableAliasEntities = false;
+    for (const aliasId of Object.keys(allEntityAliases)) {
+      const aliasInfo = this.aliasController.getInstantAliasInfo(aliasId);
+      if (aliasInfo && !aliasInfo.resolveMultiple && aliasInfo.currentEntity
+        && aliasInfo.resolvedEntities.length > 1) {
+        this.entityAliasesInfo[aliasId] = deepClone(aliasInfo);
+        this.entityAliasesInfo[aliasId].selectedId = aliasInfo.currentEntity.id;
+        this.hasSelectableAliasEntities = true;
+      }
+    }
+  }
+
 }

@@ -18,7 +18,7 @@
 <div fxFlex fxLayout="column" class="tb-progress-cover" fxLayoutAlign="center center"
      [ngStyle]="dashboardStyle"
      [style.backgroundImage]="backgroundImage"
-     [fxShow]="(((isLoading$ | async) && !this.ignoreLoading) || this.dashboardLoading) && !isEdit">
+     [fxShow]="(isLoading$ | async) && !ignoreLoading && !isEdit">
   <mat-spinner color="warn" mode="indeterminate" diameter="100">
   </mat-spinner>
 </div>

@@ -122,7 +122,7 @@ export class DashboardComponent extends PageComponent implements IDashboardCompo
   dashboardClass: string;
 
   @Input()
-  ignoreLoading: boolean;
+  ignoreLoading = true;
 
   @Input()
   dashboardTimewindow: Timewindow;
@@ -154,8 +154,6 @@ export class DashboardComponent extends PageComponent implements IDashboardCompo
 
   widgetContextMenuEvent: MouseEvent;
 
-  dashboardLoading = true;
-
   dashboardWidgets = new DashboardWidgets(this,
     this.differs.find([]).create<Widget>((index, item) => {
       return item;
@@ -282,7 +280,6 @@ export class DashboardComponent extends PageComponent implements IDashboardCompo
   private updateWidgets() {
     this.dashboardWidgets.setWidgets(this.widgets, this.widgetLayouts);
     this.dashboardWidgets.doCheck();
-    this.dashboardLoading = false;
   }
 
   private updateWidgetLayouts() {

@@ -159,7 +159,7 @@ export class DashboardPageComponent extends PageComponent implements IDashboardC
         widgets: null,
         widgetLayouts: {},
         gridSettings: {},
-        ignoreLoading: false,
+        ignoreLoading: true,
         ctrl: null,
         dashboardCtrl: this
       }
@@ -171,7 +171,7 @@ export class DashboardPageComponent extends PageComponent implements IDashboardC
         widgets: null,
         widgetLayouts: {},
         gridSettings: {},
-        ignoreLoading: false,
+        ignoreLoading: true,
         ctrl: null,
         dashboardCtrl: this
       }

@@ -193,21 +193,25 @@ export class EntityStateControllerComponent extends StateControllerComponent imp
 
   public getStateName(index: number): string {
     let result = '';
-    if (this.stateObject[index]) {
-      let stateName = this.states[this.stateObject[index].id].name;
-      stateName = this.utils.customTranslation(stateName, stateName);
-      const params = this.stateObject[index].params;
-      const targetParams = params && params.targetEntityParamName ? params[params.targetEntityParamName] : params;
-      const entityName = targetParams && targetParams.entityName ? targetParams.entityName : '';
-      const entityLabel = targetParams && targetParams.entityLabel ? targetParams.entityLabel : '';
-      result = this.utils.insertVariable(stateName, 'entityName', entityName);
-      result = this.utils.insertVariable(result, 'entityLabel', entityLabel);
-      for (const prop of Object.keys(params)) {
-        if (params[prop] && params[prop].entityName) {
-          result = this.utils.insertVariable(result, prop + ':entityName', params[prop].entityName);
-        }
-        if (params[prop] && params[prop].entityLabel) {
-          result = this.utils.insertVariable(result, prop + ':entityLabel', params[prop].entityLabel);
+    const state = this.stateObject[index];
+    if (state) {
+      const dashboardState = this.states[state.id];
+      if (dashboardState) {
+        let stateName = dashboardState.name;
+        stateName = this.utils.customTranslation(stateName, stateName);
+        const params = this.stateObject[index].params;
+        const targetParams = params && params.targetEntityParamName ? params[params.targetEntityParamName] : params;
+        const entityName = targetParams && targetParams.entityName ? targetParams.entityName : '';
+        const entityLabel = targetParams && targetParams.entityLabel ? targetParams.entityLabel : '';
+        result = this.utils.insertVariable(stateName, 'entityName', entityName);
+        result = this.utils.insertVariable(result, 'entityLabel', entityLabel);
+        for (const prop of Object.keys(params)) {
+          if (params[prop] && params[prop].entityName) {
+            result = this.utils.insertVariable(result, prop + ':entityName', params[prop].entityName);
+          }
+          if (params[prop] && params[prop].entityLabel) {
+            result = this.utils.insertVariable(result, prop + ':entityLabel', params[prop].entityLabel);
+          }
         }
       }
     }