Abstract on layer in catalog

packages/geo/src/lib/catalog/catalog-browser/catalog-browser-layer.component.html

@@ -1,6 +1,6 @@
 <mat-list-item>
   <mat-icon *ngIf="haveGroup()" mat-list-avatar svgIcon="blank"></mat-icon>
-  <h4 mat-line matTooltipShowDelay="500" [ngClass]="(catalogAllowLegend)?'igo-cataloglayer-title':''" (click)="askForLegend($event)" [matTooltip]="title">{{title}}</h4>
+  <h4 mat-line matTooltipShowDelay="500" [ngClass]="(catalogAllowLegend)?'igo-cataloglayer-title':''" (click)="askForLegend($event)" [matTooltip]="computeTitleTooltip()">{{title}}</h4>
 
   <igo-metadata-button [layer]="layer"></igo-metadata-button>
 

packages/geo/src/lib/catalog/catalog-browser/catalog-browser-layer.component.ts

@@ -13,7 +13,8 @@ import { CatalogItemLayer } from '../shared';
 import { BehaviorSubject } from 'rxjs';
 import { LayerService } from '../../layer/shared/layer.service';
 import { first } from 'rxjs/operators';
-import { Layer } from '../../layer/shared/layers';
+import { Layer, TooltipType } from '../../layer/shared/layers';
+import { MetadataLayerOptions } from '../../metadata/shared/metadata.interface';
 
 /**
  * Catalog browser layer item
@@ -78,6 +79,33 @@ export class CatalogBrowserLayerComponent implements OnInit {
     this.isPreview$.subscribe(value => this.addedLayerIsPreview.emit(value));
   }
 
+  computeTitleTooltip(): string {
+      const layerOptions = this.layer.options;
+      if (!layerOptions.tooltip) {
+        return getEntityTitle(this.layer);
+      }
+      const layerTooltip = layerOptions.tooltip;
+      const layerMetadata = (layerOptions as MetadataLayerOptions).metadata;
+      switch (layerOptions.tooltip.type) {
+        case TooltipType.TITLE:
+          return this.layer.title;
+        case TooltipType.ABSTRACT:
+          if (layerMetadata && layerMetadata.abstract) {
+            return layerMetadata.abstract;
+          } else {
+            return this.layer.title;
+          }
+        case TooltipType.CUSTOM:
+          if (layerTooltip && layerTooltip.text) {
+            return layerTooltip.text;
+          } else {
+            return this.layer.title;
+          }
+        default:
+          return this.layer.title;
+      }
+  }
+
   /**
    * On mouse event, mouseenter /mouseleave
    * @internal

packages/geo/src/lib/catalog/shared/catalog.service.ts

@@ -364,7 +364,8 @@ export class CatalogService {
         minResolution: getResolutionFromScale(layer.MinScaleDenominator),
         metadata: {
           url: metadata ? metadata.OnlineResource : undefined,
-          extern: metadata ? true : undefined
+          extern: metadata ? true : undefined,
+          abstract: layer.Abstract
         },
         legendOptions,
         tooltip: { type: catalog.tooltipType },

packages/geo/src/lib/layer/layer-legend/layer-legend.component.ts

@@ -165,7 +165,7 @@ export class LayerLegendComponent implements OnInit, OnDestroy {
     if (layerOptions && layerOptions.legendOptions) {
       const translate = this.languageService.translate;
       const title = translate.instant('igo.geo.layer.legend.default');
-      let stylesAvailable =  [{ name: '', title } as ItemStyleOptions];
+      const stylesAvailable =  [{ name: '', title } as ItemStyleOptions];
       if (layerOptions.legendOptions.stylesAvailable) {
         stylesAvailable.concat(layerOptions.legendOptions.stylesAvailable.filter(sA => (
             sA.name.normalize('NFD').replace(/[\u0300-\u036f]/gi, '') !== 'default' &&