feat(iot-hub): refine widget select empty state, filter panel, and add-item dialog sizing

- MpItemVersionQuery switched to options-object pattern (no more positional undefined params)
- Remove widgets-bundle-search and widget-types-panel components (inlined / merged into filter popover)
- Widget select empty state: shared #noData template with tb-no-data-bg illustration + 'Clear all filters' button (clears both search and filters); Installed->All widgets adds 'Browse IoT Hub' banner that navigates to IoT Hub->All widgets
- Filter popover: immediate-apply (no Apply/Cancel), Clear all + close in header, tbPopoverPlacement=bottomRight, tbPopoverShowCloseButton=false; installed mode uses same expansion-panel style as iot hub with widget type badge and Include Deprecated (shown for bundle and allWidgets)
- Sort mat-menu (Most installed / Newest / Name) with iconPositionEnd; client-side sort for installed widgets, scada items first when scadaFirst=true
- Replace all-widgets/installed-from-iot-hub placeholder SVGs with high-fidelity PNG@2x assets (incl. separate all-iot-hub-widgets.png for IoT Hub mode)
- IoT Hub browse: merge add-mode styles into embedded class, embedded always uses mobile filter drawer; compact grid 1 col default / 2 cols gt-md; regular 3 cols gt-sm; empty state uses tb-no-data-bg
- iot-hub-search: empty state uses tb-no-data-bg; add-item-dialog: tb-fullscreen-dialog-lt-md panel class, content 70vh with widths 80vw/1000px/1200px at gt-sm/gt-md/gt-xmd

ui-ngx/src/app/core/http/iot-hub-api.service.ts

@@ -73,11 +73,11 @@ export class IotHubApiService {
   }
 
   public getPublishedVersions(query: MpItemVersionQuery, config?: IotHubRequestConfig): Observable<PageData<MpItemVersionView>> {
-    if (query.tbVersion == null) {
-      query.tbVersion = tbVersionToInt(env.tbVersion);
+    if (query.options.tbVersion == null) {
+      query.options.tbVersion = tbVersionToInt(env.tbVersion);
     }
-    if (query.peOnly == null) {
-      query.peOnly = false;
+    if (query.options.peOnly == null) {
+      query.options.peOnly = false;
     }
     return this.http.get<PageData<MpItemVersionView>>(
       `${this.baseUrl}/api/versions/published${query.toQuery()}`,
@@ -129,14 +129,6 @@ export class IotHubApiService {
     });
   }
 
-  public reportVersionInstalled(versionId: string, config?: IotHubRequestConfig): Observable<void> {
-    return this.http.post<void>(
-      `${this.baseUrl}/api/versions/${versionId}/install`,
-      null,
-      { params: this.buildParams(config) }
-    );
-  }
-
   public getConnectivitySettings(config?: IotHubRequestConfig): Observable<DeviceConnectivitySettings> {
     return this.http.get<DeviceConnectivitySettings>(
       `/api/iot-hub/connectivity`,

ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-widget-select.component.html

@@ -106,7 +106,7 @@
           [itemCard]="installedDefaultCard"
           [loadingCell]="widgetLoadingCard"
           [dataLoading]="loadingWidgetBundles"
-          [noData]="noWidgetBundles">
+          [noData]="noData">
         </tb-scroll-grid>
         <ng-template #installedDefaultCard let-item="item">
           @switch (item.__logical) {
@@ -119,7 +119,7 @@
                 </div>
                 <div class="preview-container">
                   <div class="preview-spacer"></div>
-                  <img class="preview" src="/assets/widget/all-widgets.svg" alt="{{ 'widget.all-widgets' | translate }}">
+                  <img class="preview" src="/assets/widget/all-widgets.png" alt="{{ 'widget.all-widgets' | translate }}">
                 </div>
               </mat-card>
             }
@@ -152,10 +152,6 @@
             <mat-spinner strokeWidth="5"></mat-spinner>
           </div>
         </ng-template>
-        <ng-template #noWidgetBundles>
-          <span translate
-                class="mat-headline-5 tb-absolute-fill flex items-center justify-center">widgets-bundle.no-widgets-bundles-text</span>
-        </ng-template>
       }
     }
     @case ('iotHub') {
@@ -169,7 +165,7 @@
             [itemCard]="iotHubDefaultCard"
             [loadingCell]="widgetLoadingCard"
             [dataLoading]="loadingCategories"
-            [noData]="noCategories">
+            [noData]="noData">
           </tb-scroll-grid>
           <ng-template #iotHubDefaultCard let-item="item">
             @switch (item.__logical) {
@@ -182,7 +178,7 @@
                   </div>
                   <div class="preview-container">
                     <div class="preview-spacer"></div>
-                    <img class="preview" src="/assets/widget/all-widgets.svg" alt="{{ 'widget.all-widgets' | translate }}">
+                    <img class="preview" src="/assets/widget/all-iot-hub-widgets.png" alt="{{ 'widget.all-widgets' | translate }}">
                   </div>
                 </mat-card>
               }
@@ -195,7 +191,7 @@
                   </div>
                   <div class="preview-container">
                     <div class="preview-spacer"></div>
-                    <img class="preview" src="/assets/widget/installed-from-iot-hub.svg" alt="{{ 'iot-hub.installed-from-iot-hub' | translate }}">
+                    <img class="preview" src="/assets/widget/installed-from-iot-hub.png" alt="{{ 'iot-hub.installed-from-iot-hub' | translate }}">
                   </div>
                 </mat-card>
               }
@@ -222,9 +218,6 @@
               <mat-spinner color="accent" strokeWidth="5"></mat-spinner>
             </div>
           </ng-template>
-          <ng-template #noCategories>
-            <span class="mat-headline-5 tb-absolute-fill flex items-center justify-center">{{ 'iot-hub.no-items-found' | translate }}</span>
-          </ng-template>
         }
         @case ('installed') {
           <ng-container *ngTemplateOutlet="iotHubInstalledGrid"></ng-container>
@@ -246,7 +239,7 @@
       [itemCard]="widgetCard"
       [loadingCell]="widgetLoadingCard"
       [dataLoading]="loadingWidgets"
-      [noData]="noWidgets">
+      [noData]="noData">
     </tb-scroll-grid>
     <ng-template #widgetCard let-item="item">
       <mat-card class="tb-widget-preview-card flex flex-col gap-2" appearance="raised" (click)="onWidgetClicked($event, item)">
@@ -278,9 +271,6 @@
         <mat-spinner color="accent" strokeWidth="5"></mat-spinner>
       </div>
     </ng-template>
-    <ng-template #noWidgets>
-        <span class="mat-headline-5 tb-absolute-fill flex items-center justify-center">{{ 'widget.no-widgets-text' | translate }}</span>
-    </ng-template>
   </ng-template>
 
   <ng-template #widgetLoadingCard>
@@ -302,7 +292,7 @@
       [itemCard]="iotHubWidgetCard"
       [loadingCell]="widgetLoadingCard"
       [dataLoading]="loadingIotHubWidgets"
-      [noData]="noIotHubWidgets">
+      [noData]="noData">
     </tb-scroll-grid>
     <ng-template #iotHubWidgetCard let-item="item">
       <ng-container *ngTemplateOutlet="iotHubWidgetCardTpl; context: { $implicit: item, showInstalledBadge: true }"></ng-container>
@@ -315,9 +305,6 @@
         <mat-spinner color="accent" strokeWidth="5"></mat-spinner>
       </div>
     </ng-template>
-    <ng-template #noIotHubWidgets>
-      <span class="mat-headline-5 tb-absolute-fill flex items-center justify-center">{{ 'iot-hub.no-items-found' | translate }}</span>
-    </ng-template>
   </ng-template>
 
   <ng-template #iotHubInstalledGrid>
@@ -329,7 +316,7 @@
       [itemCard]="iotHubInstalledWidgetCard"
       [loadingCell]="widgetLoadingCard"
       [dataLoading]="loadingIotHubInstalledWidgets"
-      [noData]="noIotHubInstalledWidgets">
+      [noData]="noData">
     </tb-scroll-grid>
     <ng-template #iotHubInstalledWidgetCard let-item="item">
       <ng-container *ngTemplateOutlet="iotHubWidgetCardTpl; context: { $implicit: item, showInstalledBadge: false }"></ng-container>
@@ -342,9 +329,30 @@
         <mat-spinner color="accent" strokeWidth="5"></mat-spinner>
       </div>
     </ng-template>
-    <ng-template #noIotHubInstalledWidgets>
-      <span class="mat-headline-5 tb-absolute-fill flex items-center justify-center">{{ 'iot-hub.no-items-found' | translate }}</span>
-    </ng-template>
+  </ng-template>
+
+  <ng-template #noData>
+    <div class="tb-widget-select-empty-state tb-absolute-fill flex flex-col items-center">
+      <div class="tb-widget-select-empty-inner flex flex-col items-center">
+        <div class="tb-no-data-bg"></div>
+        <h3>{{ 'iot-hub.no-widgets-found' | translate }}</h3>
+        <p>{{ 'iot-hub.no-items-found-text' | translate }}</p>
+        @if (hasActiveSearchOrFilters()) {
+          <button mat-flat-button color="primary" (click)="clearSearchAndFilters()">
+            {{ 'iot-hub.clear-all-filters' | translate }}
+          </button>
+        }
+      </div>
+      @if (selectWidgetMode === 'installed' && installedSubMode === 'allWidgets') {
+        <div class="tb-widget-select-browse-tip" (click)="navigateToIotHubAllWidgets()">
+          <mat-icon class="tb-widget-select-browse-tip-icon">storefront</mat-icon>
+          <p class="tb-widget-select-browse-tip-text">
+            <span>{{ 'iot-hub.browse-tip-prefix' | translate }} </span><span class="tb-widget-select-browse-tip-link">{{ 'iot-hub.browse-tip-link' | translate }}</span><span> {{ 'iot-hub.browse-tip-suffix' | translate }}</span>
+          </p>
+          <mat-icon class="tb-widget-select-browse-tip-arrow">arrow_forward</mat-icon>
+        </div>
+      }
+    </div>
   </ng-template>
 
   <ng-template #iotHubWidgetCardTpl let-item let-showInstalledBadge="showInstalledBadge">

ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-widget-select.component.scss

@@ -13,6 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+@import "../../../../../scss/constants";
+
 tb-dashboard-widget-select {
   display: flex;
   flex-direction: column;
@@ -71,7 +73,7 @@ tb-dashboard-widget-select {
       background: rgba(255, 255, 255, 0.16);
       border: 1px solid rgba(255, 255, 255, 0.15);
       border-radius: 8px;
-      caret-color: #00695c;
+      caret-color: $tb-primary-color;
       color: rgba(255, 255, 255, 0.84);
 
       mat-icon {
@@ -103,7 +105,7 @@ tb-dashboard-widget-select {
       &.focus {
         background: #fff;
         border-color: rgba(255, 255, 255, 0.15);
-        caret-color: #00695c;
+        caret-color: $tb-primary-color;
 
         mat-icon {
           color: rgba(0, 0, 0, 0.54);
@@ -153,6 +155,79 @@ tb-dashboard-widget-select {
     }
   }
 
+  .tb-widget-select-empty-state {
+    padding: 40px 12px;
+    text-align: center;
+    gap: 40px;
+
+    .tb-widget-select-empty-inner {
+      gap: 20px;
+
+      .tb-no-data-bg {
+        flex: auto;
+        height: 100px;
+      }
+
+      h3 {
+        font-size: 20px;
+        font-weight: 600;
+        line-height: 24px;
+        letter-spacing: 0.1px;
+        color: rgba(0, 0, 0, 0.87);
+        margin: 0;
+      }
+
+      p {
+        font-size: 14px;
+        font-weight: 400;
+        line-height: 20px;
+        letter-spacing: 0.2px;
+        color: rgba(0, 0, 0, 0.76);
+        margin: 0;
+      }
+    }
+
+    .tb-widget-select-browse-tip {
+      display: flex;
+      width: 100%;
+      gap: 16px;
+      align-items: center;
+      padding: 16px 20px;
+      border: 1px solid $tb-primary-color;
+      border-radius: 4px;
+      background: #fff;
+      cursor: pointer;
+      transition: background-color 0.2s;
+
+      &:hover {
+        background: rgba($tb-primary-color, 0.06);
+      }
+
+      .tb-widget-select-browse-tip-icon,
+      .tb-widget-select-browse-tip-arrow {
+        flex-shrink: 0;
+        color: $tb-primary-color;
+      }
+
+      .tb-widget-select-browse-tip-text {
+        flex: 1;
+        text-align: left;
+        margin: 0;
+        font-size: 16px;
+        font-weight: 400;
+        line-height: 24px;
+        letter-spacing: 0.15px;
+        color: rgba(0, 0, 0, 0.76);
+
+        .tb-widget-select-browse-tip-link {
+          font-weight: 500;
+          letter-spacing: 0.25px;
+          color: $tb-primary-color;
+        }
+      }
+    }
+  }
+
   .mat-mdc-card.tb-widget-preview-card {
     cursor: pointer;
     transition: box-shadow 0.2s;

ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-widget-select.component.ts

@@ -319,19 +319,13 @@ export class DashboardWidgetSelectComponent {
       const effectiveCategories = this.iotHubSelectedCategory
         ? [this.iotHubSelectedCategory]
         : (this.iotHubAppliedCategories.size > 0 ? Array.from(this.iotHubAppliedCategories) : undefined);
-      const query = new MpItemVersionQuery(pageLink, ItemType.WIDGET,
-        undefined, undefined,
-        effectiveCategories,
-        this.iotHubAppliedUseCases.size > 0 ? Array.from(this.iotHubAppliedUseCases) : undefined,
-        undefined,
-        this.iotHubAppliedWidgetTypes.size > 0 ? Array.from(this.iotHubAppliedWidgetTypes) : undefined,
-        undefined,
-        undefined,
-        undefined,
-        undefined,
-        undefined,
-        this.scadaFirst ? true : undefined
-      );
+      const query = new MpItemVersionQuery(pageLink, {
+        type: ItemType.WIDGET,
+        categories: effectiveCategories,
+        useCases: this.iotHubAppliedUseCases.size > 0 ? Array.from(this.iotHubAppliedUseCases) : undefined,
+        widgetTypes: this.iotHubAppliedWidgetTypes.size > 0 ? Array.from(this.iotHubAppliedWidgetTypes) : undefined,
+        scadaFirst: this.scadaFirst ? true : undefined
+      });
       return this.iotHubApiService.getPublishedVersions(query, { ignoreLoading: true });
     };
 
@@ -641,6 +635,22 @@ export class DashboardWidgetSelectComponent {
     }
   }
 
+  hasActiveSearchOrFilters(): boolean {
+    return !!this.searchSubject.value?.trim() || this.hasActiveFilters();
+  }
+
+  clearSearchAndFilters(): void {
+    this.searchSubject.next('');
+    if (this.hasActiveFilters()) {
+      this.clearAllFilters();
+    }
+  }
+
+  navigateToIotHubAllWidgets(): void {
+    this.selectWidgetMode = 'iotHub';
+    this.iotHubSubMode = 'allWidgets';
+  }
+
   get hideCategoriesFilterSection(): boolean {
     return this.selectWidgetMode === 'iotHub' && this.iotHubSubMode === 'category';
   }
@@ -680,7 +690,7 @@ export class DashboardWidgetSelectComponent {
         return this.translate.instant('iot-hub.installed-from-iot-hub');
       }
       if (this.iotHubSubMode === 'allWidgets') {
-        return this.translate.instant('widget.all-widgets');
+        return this.translate.instant('iot-hub.all-iot-hub-widgets');
       }
       return '';
     }

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-actions.service.ts

@@ -49,7 +49,7 @@ export class IotHubActionsService {
 
   addItem(itemType: ItemType, options?: { itemSubType?: string; entityId?: EntityId }): Observable<IotHubAddItemDialogResult> {
     return this.dialog.open(TbIotHubAddItemDialogComponent, {
-      panelClass: ['tb-dialog', 'tb-fullscreen-dialog'],
+      panelClass: ['tb-dialog', 'tb-fullscreen-dialog-lt-md'],
       disableClose: true,
       autoFocus: false,
       data: {

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-add-item-dialog.component.scss

@@ -21,19 +21,24 @@
     position: relative;
     padding: 0;
     overflow-x: hidden;
-    height: 80vh;
+    height: 70vh;
+    max-height: 70vh;
 
     tb-iot-hub-browse {
       height: 100%;
     }
 
-    @media #{$mat-gt-xs} {
+    @media #{$mat-gt-sm} {
       width: 80vw;
     }
 
     @media #{$mat-gt-md} {
       width: 1000px;
     }
+
+    @media #{$mat-gt-xmd} {
+      width: 1200px;
+    }
   }
 
   .mat-mdc-dialog-actions {

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-browse.component.html

@@ -15,7 +15,7 @@
     limitations under the License.
 
 -->
-<div class="tb-iot-hub-browse" [class.embedded]="embedded" [class.tabs-hidden]="hideTabs" [class.add-mode]="mode === 'add'">
+<div class="tb-iot-hub-browse" [class.embedded]="embedded" [class.tabs-hidden]="hideTabs">
   <!-- Type tabs -->
   <nav mat-tab-nav-bar class="tb-iot-hub-tabs" [tabPanel]="tabPanel" [class.hidden]="hideTabs">
     <a mat-tab-link
@@ -431,7 +431,7 @@
       <!-- Error -->
       @if (hasError && !isLoading) {
         <div class="tb-iot-hub-empty-state">
-          <mat-icon class="tb-iot-hub-empty-icon">error_outline</mat-icon>
+          <div class="tb-no-data-bg"></div>
           <h3>{{ 'iot-hub.unable-to-load' | translate }}</h3>
           <p>{{ 'iot-hub.unable-to-load-text' | translate }}</p>
           <button mat-flat-button color="primary" (click)="loadItems()">
@@ -443,7 +443,7 @@
       <!-- Empty state -->
       @if (!isLoading && !hasError && items.length === 0) {
         <div class="tb-iot-hub-empty-state">
-          <mat-icon class="tb-iot-hub-empty-icon">search_off</mat-icon>
+          <div class="tb-no-data-bg"></div>
           <h3>{{ 'iot-hub.no-items-found' | translate }}</h3>
           <p>{{ 'iot-hub.no-items-found-text' | translate }}</p>
           @if (hasActiveFilters()) {

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-browse.component.scss

@@ -25,7 +25,7 @@
   flex-direction: column;
   height: 100%;
 
-  &.tabs-hidden:not(.add-mode) {
+  &.tabs-hidden:not(.embedded) {
     border-top: 1px solid rgba(0, 0, 0, 0.12);
   }
 }
@@ -57,7 +57,7 @@
   ::ng-deep .mat-drawer-backdrop {
     bottom: -48px;
 
-    .add-mode & {
+    .embedded & {
       bottom: 0;
     }
 
@@ -76,7 +76,7 @@
   padding-bottom: 48px;
   margin-bottom: -48px;
 
-  .add-mode & {
+  .embedded & {
     padding-bottom: 0;
     margin-bottom: 0;
   }
@@ -131,6 +131,24 @@
   flex-shrink: 0;
 }
 
+// Embedded mode — always use mobile filter layout (no left sidebar, filter button + drawer)
+.tb-iot-hub-browse.embedded {
+  .tb-iot-hub-filters-desktop {
+    display: none;
+  }
+
+  .tb-iot-hub-filter-toggle-btn {
+    display: inline-flex;
+  }
+
+  .tb-iot-hub-sort-row {
+    .tb-iot-hub-active-filters,
+    .tb-iot-hub-clear-btn {
+      display: none;
+    }
+  }
+}
+
 // Filter drawer — right-side overlay
 .tb-iot-hub-filter-drawer {
   width: 60%;
@@ -138,7 +156,7 @@
   min-width: 300px;
   margin-bottom: -48px;
 
-  .add-mode & {
+  .embedded & {
     margin-bottom: 0;
   }
 }
@@ -347,7 +365,7 @@
   overflow-y: auto;
   padding: 0 40px 0 20px;
 
-  .add-mode & {
+  .embedded & {
     padding-bottom: 20px;
   }
 }
@@ -495,6 +513,11 @@
   padding: 80px 0;
   text-align: center;
 
+  .tb-no-data-bg {
+    flex: auto;
+    height: 100px;
+  }
+
   h3 {
     font-size: 18px;
     font-weight: 500;
@@ -509,13 +532,6 @@
   }
 }
 
-.tb-iot-hub-empty-icon {
-  font-size: 48px;
-  width: 48px;
-  height: 48px;
-  color: rgba(0, 0, 0, 0.2);
-}
-
 // Pagination — Design: centered page numbers, items per page on the right
 .tb-iot-hub-pagination {
   display: flex;
@@ -694,21 +710,21 @@
   }
 }
 
-// Add mode responsive overrides
-.add-mode {
+// Embedded mode responsive overrides
+.embedded {
   .tb-iot-hub-card-grid.tb-iot-hub-card-grid-compact {
     grid-template-columns: repeat(1, 1fr);
   }
 
   @media #{$mat-gt-sm} {
     .tb-iot-hub-card-grid {
-      grid-template-columns: repeat(2, 1fr);
+      grid-template-columns: repeat(3, 1fr);
     }
   }
 
-  @media #{$mat-lt-md} {
-    .tb-iot-hub-card-grid {
-      grid-template-columns: repeat(1, 1fr);
+  @media #{$mat-gt-md} {
+    .tb-iot-hub-card-grid.tb-iot-hub-card-grid-compact {
+      grid-template-columns: repeat(2, 1fr);
     }
   }
 }

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-browse.component.ts

@@ -707,21 +707,18 @@ export class TbIotHubBrowseComponent implements OnInit, OnDestroy {
     const sort = this.sortOptions[this.selectedSortIndex];
     const sortOrder: SortOrder = { property: sort.value, direction: sort.direction };
     const pageLink = new PageLink(this.pageSize, this.pageIndex, this.textSearch || null, sortOrder);
-    const query = new MpItemVersionQuery(
-      pageLink,
-      this.activeType,
-      undefined,
-      this.creatorId || undefined,
-      this.activeCategories.size > 0 ? Array.from(this.activeCategories) : undefined,
-      this.activeUseCases.size > 0 ? Array.from(this.activeUseCases) : undefined,
-      this.activeCfTypes.size > 0 ? Array.from(this.activeCfTypes) : undefined,
-      this.activeWidgetTypes.size > 0 ? Array.from(this.activeWidgetTypes) : undefined,
-      this.activeRuleChainTypes.size > 0 ? Array.from(this.activeRuleChainTypes) : undefined,
-      undefined,
-      this.activeHardwareTypes.size > 0 ? Array.from(this.activeHardwareTypes) : undefined,
-      this.activeConnectivity.size > 0 ? Array.from(this.activeConnectivity) : undefined,
-      this.activeVendors.size > 0 ? Array.from(this.activeVendors) : undefined
-    );
+    const query = new MpItemVersionQuery(pageLink, {
+      type: this.activeType,
+      creatorId: this.creatorId || undefined,
+      categories: this.activeCategories.size > 0 ? Array.from(this.activeCategories) : undefined,
+      useCases: this.activeUseCases.size > 0 ? Array.from(this.activeUseCases) : undefined,
+      cfTypes: this.activeCfTypes.size > 0 ? Array.from(this.activeCfTypes) : undefined,
+      widgetTypes: this.activeWidgetTypes.size > 0 ? Array.from(this.activeWidgetTypes) : undefined,
+      ruleChainTypes: this.activeRuleChainTypes.size > 0 ? Array.from(this.activeRuleChainTypes) : undefined,
+      hardwareTypes: this.activeHardwareTypes.size > 0 ? Array.from(this.activeHardwareTypes) : undefined,
+      connectivity: this.activeConnectivity.size > 0 ? Array.from(this.activeConnectivity) : undefined,
+      vendors: this.activeVendors.size > 0 ? Array.from(this.activeVendors) : undefined
+    });
     this.iotHubApiService.getPublishedVersions(
       query,
       { ignoreLoading: true, ignoreErrors: true }

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-search.component.html

@@ -103,7 +103,7 @@
 <!-- No results -->
 @if (!isLoading && totalElements === 0 && searchText?.trim()) {
   <div class="tb-search-empty">
-    <mat-icon class="tb-search-empty-icon">search_off</mat-icon>
+    <div class="tb-no-data-bg"></div>
     <h3>{{ 'iot-hub.no-items-found' | translate }}</h3>
     <p>{{ 'iot-hub.try-adjusting-search' | translate }}</p>
   </div>

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-search.component.scss

@@ -196,14 +196,11 @@
   align-items: center;
   padding: 40px 0;
   margin-top: -20px;
-}
 
-.tb-search-empty-icon {
-  font-size: 100px;
-  width: 100px;
-  height: 100px;
-  color: rgba(0, 0, 0, 0.38);
-  margin-bottom: 20px;
+  .tb-no-data-bg {
+    flex: auto;
+    height: 100px;
+  }
 }
 
 .tb-search-empty h3 {

ui-ngx/src/app/modules/home/components/iot-hub/iot-hub-search.component.ts

@@ -275,7 +275,7 @@ export class TbIotHubSearchComponent implements OnInit, OnDestroy {
     const sort = this.sortOptions[this.selectedSortIndex];
     const sortOrder: SortOrder = { property: sort.value, direction: sort.direction };
     const pageLink = new PageLink(this.pageSize, this.pageIndex, text.trim() || null, sortOrder);
-    const query = new MpItemVersionQuery(pageLink, undefined, undefined, this.creatorId || undefined);
+    const query = new MpItemVersionQuery(pageLink, { creatorId: this.creatorId || undefined });
     return this.iotHubApiService.getPublishedVersions(query, { ignoreLoading: true });
   }
 

ui-ngx/src/app/modules/home/pages/iot-hub/iot-hub-home.component.ts

@@ -473,7 +473,7 @@ export class TbIotHubHomeComponent implements OnInit, OnDestroy {
 
     const buildQuery = (type: ItemType, size: number): MpItemVersionQuery => {
       const pageLink = new PageLink(size, 0, null, sortOrder);
-      return new MpItemVersionQuery(pageLink, type);
+      return new MpItemVersionQuery(pageLink, { type });
     };
 
     forkJoin({

ui-ngx/src/app/shared/models/iot-hub/iot-hub-version.models.ts

@@ -112,64 +112,66 @@ export interface MpItemVersionView {
   resources: MpItemVersionResource[];
 }
 
+export interface MpItemVersionQueryOptions {
+  type?: string;
+  peOnly?: boolean;
+  creatorId?: string;
+  categories?: string[];
+  useCases?: string[];
+  cfTypes?: string[];
+  widgetTypes?: string[];
+  ruleChainTypes?: string[];
+  tbVersion?: number;
+  hardwareTypes?: string[];
+  connectivity?: string[];
+  vendors?: string[];
+  scadaFirst?: boolean;
+}
+
 export class MpItemVersionQuery {
-  constructor(
-    public pageLink: PageLink,
-    public type?: string,
-    public peOnly?: boolean,
-    public creatorId?: string,
-    public categories?: string[],
-    public useCases?: string[],
-    public cfTypes?: string[],
-    public widgetTypes?: string[],
-    public ruleChainTypes?: string[],
-    public tbVersion?: number,
-    public hardwareTypes?: string[],
-    public connectivity?: string[],
-    public vendors?: string[],
-    public scadaFirst?: boolean
-  ) {}
+  constructor(public pageLink: PageLink, public options: MpItemVersionQueryOptions = {}) {}
 
   public toQuery(): string {
     let query = this.pageLink.toQuery();
-    if (this.type) {
-      query += `&type=${this.type}`;
+    const o = this.options;
+    if (o.type) {
+      query += `&type=${o.type}`;
     }
-    if (this.peOnly != null) {
-      query += `&peOnly=${this.peOnly}`;
+    if (o.peOnly != null) {
+      query += `&peOnly=${o.peOnly}`;
     }
-    if (this.creatorId) {
-      query += `&creatorId=${this.creatorId}`;
+    if (o.creatorId) {
+      query += `&creatorId=${o.creatorId}`;
     }
-    if (this.categories?.length) {
-      query += this.categories.map(c => `&categories=${encodeURIComponent(c)}`).join('');
+    if (o.categories?.length) {
+      query += o.categories.map(c => `&categories=${encodeURIComponent(c)}`).join('');
     }
-    if (this.useCases?.length) {
-      query += this.useCases.map(u => `&useCases=${encodeURIComponent(u)}`).join('');
+    if (o.useCases?.length) {
+      query += o.useCases.map(u => `&useCases=${encodeURIComponent(u)}`).join('');
     }
-    if (this.cfTypes?.length) {
-      query += this.cfTypes.map(t => `&cfTypes=${encodeURIComponent(t)}`).join('');
+    if (o.cfTypes?.length) {
+      query += o.cfTypes.map(t => `&cfTypes=${encodeURIComponent(t)}`).join('');
     }
-    if (this.widgetTypes?.length) {
-      query += this.widgetTypes.map(t => `&widgetTypes=${encodeURIComponent(t)}`).join('');
+    if (o.widgetTypes?.length) {
+      query += o.widgetTypes.map(t => `&widgetTypes=${encodeURIComponent(t)}`).join('');
     }
-    if (this.ruleChainTypes?.length) {
-      query += this.ruleChainTypes.map(t => `&ruleChainTypes=${encodeURIComponent(t)}`).join('');
+    if (o.ruleChainTypes?.length) {
+      query += o.ruleChainTypes.map(t => `&ruleChainTypes=${encodeURIComponent(t)}`).join('');
     }
-    if (this.tbVersion != null) {
-      query += `&tbVersion=${this.tbVersion}`;
+    if (o.tbVersion != null) {
+      query += `&tbVersion=${o.tbVersion}`;
     }
-    if (this.hardwareTypes?.length) {
-      query += this.hardwareTypes.map(ht => `&hardwareTypes=${encodeURIComponent(ht)}`).join('');
+    if (o.hardwareTypes?.length) {
+      query += o.hardwareTypes.map(ht => `&hardwareTypes=${encodeURIComponent(ht)}`).join('');
     }
-    if (this.connectivity?.length) {
-      query += this.connectivity.map(c => `&connectivity=${encodeURIComponent(c)}`).join('');
+    if (o.connectivity?.length) {
+      query += o.connectivity.map(c => `&connectivity=${encodeURIComponent(c)}`).join('');
     }
-    if (this.vendors?.length) {
-      query += this.vendors.map(v => `&vendors=${encodeURIComponent(v)}`).join('');
+    if (o.vendors?.length) {
+      query += o.vendors.map(v => `&vendors=${encodeURIComponent(v)}`).join('');
     }
-    if (this.scadaFirst != null) {
-      query += `&scadaFirst=${this.scadaFirst}`;
+    if (o.scadaFirst != null) {
+      query += `&scadaFirst=${o.scadaFirst}`;
     }
     return query;
   }

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -3712,6 +3712,7 @@
         "try-adjusting-search": "Try adjusting your search",
         "add-widget-from-iot-hub": "Add widget from IoT Hub",
         "all-widgets": "All widgets",
+        "all-iot-hub-widgets": "All IoT Hub widgets",
         "installed-from-iot-hub": "Installed from IoT Hub",
         "include-deprecated": "Include deprecated",
         "widget-category-value": "{{ category }} widgets",
@@ -3781,6 +3782,10 @@
         "retry": "Retry",
         "no-items-found": "No items found",
         "no-items-found-text": "Try adjusting your search or filters.",
+        "no-widgets-found": "No widgets found",
+        "browse-tip-prefix": "Can't find what you need?",
+        "browse-tip-link": "Browse IoT Hub",
+        "browse-tip-suffix": "for more widgets.",
         "creator": "Creator",
         "manage": "Manage",
         "details": "Details",

ui-ngx/src/assets/widget/all-widgets.svg

@@ -1,7 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 96" fill="none">
-  <rect width="120" height="96" rx="4" fill="#F5F7FA"/>
-  <rect x="12" y="12" width="44" height="32" rx="3" fill="#E3F2FD" stroke="#90CAF9"/>
-  <rect x="64" y="12" width="44" height="32" rx="3" fill="#E8F5E9" stroke="#A5D6A7"/>
-  <rect x="12" y="52" width="44" height="32" rx="3" fill="#FFF3E0" stroke="#FFCC80"/>
-  <rect x="64" y="52" width="44" height="32" rx="3" fill="#F3E5F5" stroke="#CE93D8"/>
-</svg>

ui-ngx/src/assets/widget/installed-from-iot-hub.svg

@@ -1,9 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 96" fill="none">
-  <rect width="120" height="96" rx="4" fill="#E8F5E9"/>
-  <rect x="18" y="18" width="40" height="28" rx="3" fill="#FFFFFF" stroke="#A5D6A7"/>
-  <rect x="62" y="18" width="40" height="28" rx="3" fill="#FFFFFF" stroke="#A5D6A7"/>
-  <rect x="18" y="50" width="40" height="28" rx="3" fill="#FFFFFF" stroke="#A5D6A7"/>
-  <rect x="62" y="50" width="40" height="28" rx="3" fill="#FFFFFF" stroke="#A5D6A7"/>
-  <circle cx="98" cy="74" r="13" fill="#198038"/>
-  <path d="M98 67v12M93 74l5 5 5-5" stroke="#FFF" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
-</svg>