[ADF-2131] Search sorting (#3334)

* sorting configuration

* detect primary sorting and use with document list

* search results sorting

* docs update

* unit tests and code updates

* update code

* update code

* generic sorting picker, test updates

* ability to switch off client side sorting

* update docs for document list

demo-shell/src/app.config.json

@@ -55,6 +55,16 @@
     ],
     "search": {
       "include": ["path", "allowableOperations"],
+      "sorting": {
+        "options": [
+          { "key": "name", "label": "Name", "type": "FIELD", "field": "cm:name", "ascending": true },
+          { "key": "content.sizeInBytes", "label": "Size", "type": "FIELD", "field": "content.size", "ascending": true },
+          { "key": "description", "label": "Description", "type": "FIELD", "field": "cm:description", "ascending": true }
+        ],
+        "defaults": [
+          { "key": "name", "type": "FIELD", "field": "cm:name", "ascending": true }
+        ]
+      },
       "filterQueries": [
         { "query": "TYPE:'cm:folder' OR TYPE:'cm:content'" },
         { "query": "NOT cm:creator:System" }

demo-shell/src/app/components/files/files.component.html

@@ -1,6 +1,6 @@
 <div class="container">
 
-    <mat-accordion class="adf-container-recent">
+    <mat-accordion *ngIf="showRecentFiles" class="adf-container-recent">
         <mat-expansion-panel  hideToggle="true">
             <mat-expansion-panel-header >
                 <mat-panel-title>
@@ -28,7 +28,7 @@
         </mat-expansion-panel>
     </mat-accordion>
 
-    <div class="adf-site-container-style" id="site-container">
+    <div *ngIf="showSitePicker" class="adf-site-container-style" id="site-container">
         <adf-sites-dropdown (change)="onSiteChange($event)" [hideMyFiles]="false" [relations]="'members'">
         </adf-sites-dropdown>
     </div>
@@ -194,6 +194,9 @@
                 [display]="displayMode"
                 [node]="nodeResult"
                 [includeFields]="includeFields"
+                [sorting]="sorting"
+                [sortingMode]="sortingMode"
+                [showHeader]="showHeader"
                 (error)="onNavigationError($event)"
                 (success)="resetError()"
                 (ready)="emitReadyEvent($event)"
@@ -416,7 +419,7 @@
     </adf-start-process>
 </div>
 
-<div class="adf-content-service-settings">
+<div *ngIf="showSettingsPanel" class="adf-content-service-settings">
 
     <p>Current folder ID: {{ documentList.currentFolderId }}</p>
 

demo-shell/src/app/components/files/files.component.ts

@@ -74,6 +74,24 @@ export class FilesComponent implements OnInit, OnChanges, OnDestroy {
 
     processId;
 
+    @Input()
+    sorting = ['name', 'asc'];
+
+    @Input()
+    sortingMode = 'client';
+
+    @Input()
+    showRecentFiles = true;
+
+    @Input()
+    showSitePicker = true;
+
+    @Input()
+    showSettingsPanel = true;
+
+    @Input()
+    showHeader = true;
+
     @Input()
     selectionMode = 'multiple';
 

demo-shell/src/app/components/search/search-result.component.html

@@ -14,7 +14,16 @@
     <adf-search-filter #searchFilter></adf-search-filter>
 
     <div class="adf-search-results__content">
+        <div class="adf-search-results__sorting">
+            <adf-search-sorting-picker></adf-search-sorting-picker>
+        </div>
         <app-files-component
+            [showHeader]="false"
+            [sorting]="sorting"
+            [sortingMode]="'server'"
+            [showRecentFiles]="false"
+            [showSitePicker]="false"
+            [showSettingsPanel]="false"
             [currentFolderId]="null"
             [nodeResult]="resultNodePageList"
             [disableDragArea]="true"

demo-shell/src/app/components/search/search-result.component.scss

@@ -14,6 +14,10 @@
     &__content {
         flex: 1;
     }
+
+    &__sorting {
+        text-align: right;
+    }
 }
 
 div.search-results-container {

demo-shell/src/app/components/search/search-result.component.ts

@@ -39,6 +39,8 @@ export class SearchResultComponent implements OnInit {
     maxItems: number;
     skipCount = 0;
 
+    sorting = ['name', 'asc'];
+
     constructor(public router: Router,
                 private preferences: UserPreferencesService,
                 private queryBuilder: SearchQueryBuilderService,
@@ -51,6 +53,13 @@ export class SearchResultComponent implements OnInit {
     }
 
     ngOnInit() {
+
+        this.sorting = this.getSorting();
+
+        this.queryBuilder.updated.subscribe(() => {
+            this.sorting = this.getSorting();
+        });
+
         if (this.route) {
             this.route.params.forEach((params: Params) => {
                 this.searchedWord = params.hasOwnProperty(this.queryParamName) ? params[this.queryParamName] : null;
@@ -79,4 +88,14 @@ export class SearchResultComponent implements OnInit {
     onDeleteElementSuccess(element: any) {
         this.searchResult.reload();
     }
+
+    private getSorting(): string[] {
+        const primary = this.queryBuilder.getPrimarySorting();
+
+        if (primary) {
+            return [primary.key, primary.ascending ? 'asc' : 'desc'];
+        }
+
+        return ['name', 'asc'];
+    }
 }

docs/content-services/document-list.component.md

@@ -88,6 +88,7 @@ Displays the documents from a repository.
 | skipCount | `number` | 0 | Number of elements to skip over for pagination purposes |
 | sorting | `string[]` |  | Defines default sorting. The format is an array of 2 strings `[key, direction]` i.e. `['name', 'desc']` or `['name', 'asc']`. Set this value only if you want to override the default sorting detected by the component based on columns. |
 | thumbnails | `boolean` | false | Show document thumbnails rather than icons |
+| sortingMode | `string` | `client` | Defines sorting mode. Can be either `client` or `server`. |
 
 ### Events
 

docs/content-services/search-filter.component.md

@@ -34,6 +34,16 @@ Below is an example configuration:
 ```json
 {
     "search": {
+        "sorting": {
+            "options": [
+                { "key": "name", "label": "Name", "type": "FIELD", "field": "cm:name", "ascending": true },
+                { "key": "content.sizeInBytes", "label": "Size", "type": "FIELD", "field": "content.size", "ascending": true },
+                { "key": "description", "label": "Description", "type": "FIELD", "field": "cm:description", "ascending": true }
+            ],
+            "defaults": [
+                { "key": "name", "type": "FIELD", "field": "cm:name", "ascending": true }
+            ]
+        },
         "filterQueries": [
             { "query": "TYPE:'cm:folder' OR TYPE:'cm:content'" },
             { "query": "NOT cm:creator:System" }
@@ -107,6 +117,42 @@ In addition, it is also possible to provide a set of queries that are always exe
 
 Note that the entries of the `filterQueries` array are joined using the `AND` operator. 
 
+### Sorting
+
+The Sorting configuration section consists of two blocks: 
+`options` that holds a list of items that users can select from,
+and `defaults` that contains predefined sorting to use by default.
+
+```json
+{
+    "search": {
+        "sorting": {
+            "options": [
+                { "key": "name", "label": "Name", "type": "FIELD", "field": "cm:name", "ascending": true },
+                { "key": "content.sizeInBytes", "label": "Size", "type": "FIELD", "field": "content.size", "ascending": true },
+                { "key": "description", "label": "Description", "type": "FIELD", "field": "cm:description", "ascending": true }
+            ],
+            "defaults": [
+                { "key": "name", "type": "FIELD", "field": "cm:name", "ascending": true }
+            ]
+        }
+    }
+}
+```
+
+#### Sorting Definition Attributes
+
+| Name | Type | Description |
+| --- | --- | --- |
+| key | string | Unique key to identify the entry, can also be used to map DataColumn instances. |
+| label | string | Display text, can also be an i18n resource key. |
+| type | string | This specifies how to order - either by using a field or based on the position of the document in the index, or by score/relevance.  |
+| field | string | The name of the field. |
+| ascending | boolean | The sorting order. |
+
+See also:
+* Alfresco Content Services API Reference  / Search Api / [Sort](https://docs.alfresco.com/5.2/concepts/search-api-sort.html)
+
 ### Categories
 
 The Search Settings component and Query Builder require a `categories` section provided within the configuration.
@@ -648,3 +694,5 @@ and pass custom attributes in case your component supports them:
 ## See also
 
 - [Search Query Builder service](search-query-builder.service.md)
+- [Search Chip List Component](search-chip-list.component.md)
+- [Search Sorting Picker Component](search-sorting-picker.component.md)

docs/content-services/search-sorting-picker.component.md

@@ -0,0 +1,13 @@
+---
+Added: v2.3.0
+Status: Active
+---
+
+# Search Sorting Picker Component
+
+Provides an ability to select one of the predefined sorting definitions for search results:
+
+```html
+<adf-search-sorting-picker></adf-search-sorting-picker>
+<adf-search-filter></adf-search-filter>
+```

docs/core/sorting-picker.component.md

@@ -0,0 +1,43 @@
+---
+Added: v2.4.0
+Status: Active
+---
+
+# Sorting Picker Component
+
+Provides an ability to pick one of the predefined sorting definitions and define sorting direction:
+
+```html
+<adf-sorting-picker
+    [options]="options"
+    [selected]="value"
+    [ascending]="ascending"
+    (change)="onChanged($event)">
+</adf-sorting-picker>
+```
+
+![Sorting Picker](../docassets/images/sorting-picker.png)
+
+## Options format
+
+You can bind a collection of any objects that expose the following properties:
+
+```ts
+{
+    key: string;
+    label: string;
+}
+```
+
+## Properties
+
+| Name | Type | Default Value | Description |
+| options | `Array<{key: string, label: string}>` | `[]` | Available sorting options. |
+| selected | `string` | | Currently selected option key. |
+| ascending | `boolean` | true | Current sorting direction. |
+
+## Events
+
+| Name | Type | Description |
+| --- | --- | --- |
+| change | `EventEmitter<{ key: string, ascending: boolean }>` | Raised each time sorting key or direction gets changed. |

lib/content-services/document-list/components/document-list.component.ts

@@ -138,6 +138,10 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
     @Input()
     sorting = ['name', 'asc'];
 
+    /** Defines sorting mode. Can be either `client` or `server`. */
+    @Input()
+    sortingMode = 'client';
+
     /** The inline style to apply to every row. See
      * the Angular NgStyle
      * docs for more details and usage examples.
@@ -329,7 +333,7 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
 
     ngOnInit() {
         this.loadLayoutPresets();
-        this.data = new ShareDataTableAdapter(this.documentListService, null, this.getDefaultSorting());
+        this.data = new ShareDataTableAdapter(this.documentListService, null, this.getDefaultSorting(), this.sortingMode);
         this.data.thumbnails = this.thumbnails;
         this.data.permissionsStyle = this.permissionsStyle;
 
@@ -367,7 +371,7 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
         }
 
         if (!this.data) {
-            this.data = new ShareDataTableAdapter(this.documentListService, schema, this.getDefaultSorting());
+            this.data = new ShareDataTableAdapter(this.documentListService, schema, this.getDefaultSorting(), this.sortingMode);
         } else if (schema && schema.length > 0) {
             this.data.setColumns(schema);
         }
@@ -381,6 +385,18 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
     ngOnChanges(changes: SimpleChanges) {
         this.resetSelection();
 
+        if (changes.sortingMode && !changes.sortingMode.firstChange && this.data) {
+            this.data.sortingMode = changes.sortingMode.currentValue;
+        }
+
+        if (changes.sorting && !changes.sorting.firstChange && this.data) {
+            const newValue = changes.sorting.currentValue;
+            if (newValue && newValue.length > 0) {
+                const [key, direction] = newValue;
+                this.data.setSorting(new DataSorting(key, direction));
+            }
+        }
+
         if (changes.folderNode && changes.folderNode.currentValue) {
             this.currentFolderId = changes.folderNode.currentValue.id;
             this.resetNewFolderPagination();

lib/content-services/document-list/data/share-datatable-adapter.spec.ts

@@ -32,6 +32,31 @@ describe('ShareDataTableAdapter', () => {
         spyOn(documentListService, 'getDocumentThumbnailUrl').and.returnValue(imageUrl);
     });
 
+    it('should use client sorting by default', () => {
+        const adapter = new ShareDataTableAdapter(documentListService, []);
+        expect(adapter.sortingMode).toBe('client');
+    });
+
+    it('should not be case sensitive for sorting mode value', () => {
+        const adapter = new ShareDataTableAdapter(documentListService, []);
+
+        adapter.sortingMode = 'CLIENT';
+        expect(adapter.sortingMode).toBe('client');
+
+        adapter.sortingMode = 'SeRvEr';
+        expect(adapter.sortingMode).toBe('server');
+    });
+
+    it('should fallback to client sorting for unknown values', () => {
+        const adapter = new ShareDataTableAdapter(documentListService, []);
+
+        adapter.sortingMode = 'SeRvEr';
+        expect(adapter.sortingMode).toBe('server');
+
+        adapter.sortingMode = 'quantum';
+        expect(adapter.sortingMode).toBe('client');
+    });
+
     it('should setup rows and columns with constructor', () => {
         let schema = [<DataColumn> {}];
         let adapter = new ShareDataTableAdapter(documentListService, schema);

lib/content-services/document-list/data/share-datatable-adapter.ts

@@ -26,6 +26,7 @@ export class ShareDataTableAdapter implements DataTableAdapter {
     ERR_ROW_NOT_FOUND: string = 'Row not found';
     ERR_COL_NOT_FOUND: string = 'Column not found';
 
+    private _sortingMode: string;
     private sorting: DataSorting;
     private rows: DataRow[];
     private columns: DataColumn[];
@@ -37,12 +38,26 @@ export class ShareDataTableAdapter implements DataTableAdapter {
     permissionsStyle: PermissionStyleModel[];
     selectedRow: DataRow;
 
+    set sortingMode(value: string) {
+        let newValue = (value || 'client').toLowerCase();
+        if (newValue !== 'client' && newValue !== 'server') {
+            newValue = 'client';
+        }
+        this._sortingMode = newValue;
+    }
+
+    get sortingMode(): string {
+        return this._sortingMode;
+    }
+
     constructor(private documentListService: DocumentListService,
                 schema: DataColumn[] = [],
-                sorting?: DataSorting) {
+                sorting?: DataSorting,
+                sortingMode: string = 'client') {
         this.rows = [];
         this.columns = schema || [];
         this.sorting = sorting;
+        this.sortingMode = sortingMode;
     }
 
     getRows(): Array<DataRow> {
@@ -148,6 +163,10 @@ export class ShareDataTableAdapter implements DataTableAdapter {
     }
 
     private sortRows(rows: DataRow[], sorting: DataSorting) {
+        if (this.sortingMode === 'server') {
+            return;
+        }
+
         const options: Intl.CollatorOptions = {};
 
         if (sorting && sorting.key && rows && rows.length > 0) {
@@ -194,6 +213,7 @@ export class ShareDataTableAdapter implements DataTableAdapter {
                     rows = rows.filter(this.filter);
                 }
 
+                if (this.sortingMode !== 'server') {
                     // Sort by first sortable or just first column
                     if (this.columns && this.columns.length > 0) {
                         let sorting = this.getSorting();
@@ -210,6 +230,7 @@ export class ShareDataTableAdapter implements DataTableAdapter {
                     }
                 }
             }
+        }
 
         if (merge) {
             this.rows = this.rows.concat(rows);

lib/content-services/search/components/search-sorting-picker/search-sorting-picker.component.html

@@ -0,0 +1,6 @@
+<adf-sorting-picker
+    [options]="options"
+    [selected]="value"
+    [ascending]="ascending"
+    (change)="onChanged($event)">
+</adf-sorting-picker>

lib/content-services/search/components/search-sorting-picker/search-sorting-picker.component.spec.ts

@@ -0,0 +1,81 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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 { SearchSortingPickerComponent } from './search-sorting-picker.component';
+import { SearchQueryBuilderService } from '../../search-query-builder.service';
+import { AppConfigService } from '@alfresco/adf-core';
+import { SearchConfiguration } from '../../search-configuration.interface';
+
+describe('SearchSortingPickerComponent', () => {
+
+    let queryBuilder: SearchQueryBuilderService;
+    let component: SearchSortingPickerComponent;
+
+    const buildConfig = (searchSettings): AppConfigService => {
+        const config = new AppConfigService(null);
+        config.config.search = searchSettings;
+        return config;
+    };
+
+    beforeEach(() => {
+        const config: SearchConfiguration = {
+            sorting: {
+                options: [
+                    <any> { 'key': 'name', 'label': 'Name', 'type': 'FIELD', 'field': 'cm:name', 'ascending': true },
+                    <any> { 'key': 'content.sizeInBytes', 'label': 'Size', 'type': 'FIELD', 'field': 'content.size', 'ascending': true },
+                    <any> { 'key': 'description', 'label': 'Description', 'type': 'FIELD', 'field': 'cm:description', 'ascending': true }
+                ],
+                defaults: [
+                    <any> { 'key': 'name', 'type': 'FIELD', 'field': 'cm:name', 'ascending': true }
+                ]
+            },
+            categories: [
+                <any> { id: 'cat1', enabled: true }
+            ]
+        };
+        queryBuilder = new SearchQueryBuilderService(buildConfig(config), null);
+        component = new SearchSortingPickerComponent(queryBuilder);
+    });
+
+    it('should load options from query builder', () => {
+        component.ngOnInit();
+
+        expect(component.options.length).toBe(3);
+        expect(component.options[0].key).toEqual('name');
+        expect(component.options[1].key).toEqual('content.sizeInBytes');
+        expect(component.options[2].key).toEqual('description');
+    });
+
+    it('should pre-select the primary sorting definition', () => {
+        component.ngOnInit();
+
+        expect(component.value).toEqual('name');
+        expect(component.ascending).toBeTruthy();
+    });
+
+    it('should update query builder each time selection is changed', () => {
+        spyOn(queryBuilder, 'update').and.stub();
+
+        component.ngOnInit();
+        component.onChanged({ key: 'description', ascending: false });
+
+        expect(queryBuilder.update).toHaveBeenCalled();
+        expect(queryBuilder.sorting.length).toBe(1);
+        expect(queryBuilder.sorting[0].key).toEqual('description');
+        expect(queryBuilder.sorting[0].ascending).toBeFalsy();
+    });
+});

lib/content-services/search/components/search-sorting-picker/search-sorting-picker.component.ts

@@ -0,0 +1,70 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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 { Component, OnInit, ViewEncapsulation } from '@angular/core';
+import { SearchQueryBuilderService } from '../../search-query-builder.service';
+import { SearchSortingDefinition } from '../../search-sorting-definition.interface';
+
+@Component({
+    selector: 'adf-search-sorting-picker',
+    templateUrl: './search-sorting-picker.component.html',
+    encapsulation: ViewEncapsulation.None,
+    host: { class: 'adf-search-sorting-picker' }
+})
+export class SearchSortingPickerComponent implements OnInit {
+
+    options: SearchSortingDefinition[] = [];
+    value: string;
+    ascending: boolean;
+
+    constructor(private queryBuilder: SearchQueryBuilderService) {}
+
+    ngOnInit() {
+        this.options = this.queryBuilder.getSortingOptions();
+
+        const primary = this.queryBuilder.getPrimarySorting();
+        if (primary) {
+            this.value = primary.key;
+            this.ascending = primary.ascending;
+        }
+    }
+
+    onChanged(sorting: { key: string, ascending: boolean }) {
+        this.value = sorting.key;
+        this.ascending = sorting.ascending;
+        this.applySorting();
+    }
+
+    private findOptionByKey(key: string): SearchSortingDefinition {
+        if (key) {
+            return this.options.find(opt => opt.key === key);
+        }
+        return null;
+    }
+
+    private applySorting() {
+        const option = this.findOptionByKey(this.value);
+        if (option) {
+            this.queryBuilder.sorting = [{
+                ...option,
+                ascending: this.ascending
+            }];
+            this.queryBuilder.update();
+        }
+    }
+
+}

lib/content-services/search/public-api.ts

@@ -34,5 +34,6 @@ export * from './components/search-trigger.directive';
 export * from './components/empty-search-result.component';
 export * from './components/search-filter/search-filter.component';
 export * from './components/search-chip-list/search-chip-list.component';
+export * from './components/search-sorting-picker/search-sorting-picker.component';
 
 export * from './search.module';

lib/content-services/search/search-configuration.interface.ts

@@ -19,6 +19,7 @@ import { FilterQuery } from './filter-query.interface';
 import { FacetQuery } from './facet-query.interface';
 import { FacetField } from './facet-field.interface';
 import { SearchCategory } from './search-category.interface';
+import { SearchSortingDefinition } from './search-sorting-definition.interface';
 
 export interface SearchConfiguration {
     include?: Array<string>;
@@ -32,4 +33,8 @@ export interface SearchConfiguration {
         queries: Array<FacetQuery>;
     };
     facetFields?: Array<FacetField>;
+    sorting?: {
+        options: Array<SearchSortingDefinition>;
+        defaults: Array<SearchSortingDefinition>;
+    };
 }

lib/content-services/search/search-query-builder.service.spec.ts

@@ -299,6 +299,24 @@ describe('SearchQueryBuilder', () => {
         expect(compiled.facetFields.facets).toEqual(jasmine.objectContaining(config.facetFields));
     });
 
+    it('should build query with sorting', () => {
+        const config: SearchConfiguration = {
+            fields: [],
+            categories: [
+                <any> { id: 'cat1', enabled: true },
+                <any> { id: 'cat2', enabled: true }
+            ]
+        };
+        const builder = new SearchQueryBuilderService(buildConfig(config), null);
+        const sorting: any = { type: 'FIELD', field: 'cm:name', ascending: true };
+        builder.sorting = [sorting];
+
+        builder.queryFragments['cat1'] = 'cm:name:test';
+
+        const compiled = builder.buildQuery();
+        expect(compiled.sort[0]).toEqual(jasmine.objectContaining(sorting));
+    });
+
     it('should use pagination settings', () => {
         const config: SearchConfiguration = {
             categories: [

lib/content-services/search/search-query-builder.service.ts

@@ -18,12 +18,13 @@
 import { Injectable } from '@angular/core';
 import { Subject } from 'rxjs/Subject';
 import { AlfrescoApiService, AppConfigService } from '@alfresco/adf-core';
-import { QueryBody, RequestFacetFields, RequestFacetField } from 'alfresco-js-api';
+import { QueryBody, RequestFacetFields, RequestFacetField, RequestSortDefinitionInner } from 'alfresco-js-api';
 import { SearchCategory } from './search-category.interface';
 import { FilterQuery } from './filter-query.interface';
 import { SearchRange } from './search-range.interface';
 import { SearchConfiguration } from './search-configuration.interface';
 import { FacetQuery } from './facet-query.interface';
+import { SearchSortingDefinition } from './search-sorting-definition.interface';
 
 @Injectable()
 export class SearchQueryBuilderService {
@@ -34,17 +35,24 @@ export class SearchQueryBuilderService {
     categories: Array<SearchCategory> = [];
     queryFragments: { [id: string]: string } = {};
     filterQueries: FilterQuery[] = [];
-    ranges: { [id: string]: SearchRange } = {};
     paging: { maxItems?: number; skipCount?: number } = null;
+    sorting: Array<SearchSortingDefinition> = [];
 
     config: SearchConfiguration;
 
+    // TODO: to be supported in future iterations
+    ranges: { [id: string]: SearchRange } = {};
+
     constructor(appConfig: AppConfigService,  private alfrescoApiService: AlfrescoApiService) {
         this.config = appConfig.get<SearchConfiguration>('search');
 
         if (this.config) {
             this.categories = (this.config.categories || []).filter(f => f.enabled);
             this.filterQueries = this.config.filterQueries || [];
+
+            if (this.config.sorting) {
+                this.sorting = this.config.sorting.defaults || [];
+            }
         }
     }
 
@@ -112,7 +120,8 @@ export class SearchQueryBuilderService {
                 fields: this.config.fields,
                 filterQueries: this.filterQueries,
                 facetQueries: this.facetQueries,
-                facetFields: this.facetFields
+                facetFields: this.facetFields,
+                sort: this.sort
             };
 
             return result;
@@ -121,6 +130,36 @@ export class SearchQueryBuilderService {
         return null;
     }
 
+    /**
+     * Returns primary sorting definition.
+     */
+    getPrimarySorting(): SearchSortingDefinition {
+        if (this.sorting && this.sorting.length > 0) {
+            return this.sorting[0];
+        }
+        return null;
+    }
+
+    /**
+     * Returns all pre-configured sorting options that users can choose from.
+     */
+    getSortingOptions(): SearchSortingDefinition[] {
+        if (this.config && this.config.sorting) {
+            return this.config.sorting.options || [];
+        }
+        return [];
+    }
+
+    private get sort(): RequestSortDefinitionInner[] {
+        return this.sorting.map(def => {
+            return {
+                type: def.type,
+                field: def.field,
+                ascending: def.ascending
+            };
+        });
+    }
+
     private get facetQueries(): FacetQuery[] {
         const config = this.config.facetQueries;
 

lib/content-services/search/search-sorting-definition.interface.ts

@@ -0,0 +1,24 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+export interface SearchSortingDefinition {
+    key: string;
+    label: string;
+    type: string;
+    field: string;
+    ascending: boolean;
+}

lib/content-services/search/search.module.ts

@@ -21,7 +21,7 @@ import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { TranslateModule } from '@ngx-translate/core';
 import { MaterialModule } from '../material.module';
 
-import { PipeModule } from '@alfresco/adf-core';
+import { PipeModule, CoreModule } from '@alfresco/adf-core';
 
 import { SearchTriggerDirective } from './components/search-trigger.directive';
 
@@ -37,6 +37,7 @@ import { SearchSliderComponent } from './components/search-slider/search-slider.
 import { SearchNumberRangeComponent } from './components/search-number-range/search-number-range.component';
 import { SearchCheckListComponent } from './components/search-check-list/search-check-list.component';
 import { SearchDateRangeComponent } from './components/search-date-range/search-date-range.component';
+import { SearchSortingPickerComponent } from './components/search-sorting-picker/search-sorting-picker.component';
 
 export const ALFRESCO_SEARCH_DIRECTIVES: any[] = [
     SearchComponent,
@@ -49,6 +50,7 @@ export const ALFRESCO_SEARCH_DIRECTIVES: any[] = [
 
 @NgModule({
     imports: [
+        CoreModule,
         CommonModule,
         FormsModule,
         ReactiveFormsModule,
@@ -64,7 +66,8 @@ export const ALFRESCO_SEARCH_DIRECTIVES: any[] = [
         SearchSliderComponent,
         SearchNumberRangeComponent,
         SearchCheckListComponent,
-        SearchDateRangeComponent
+        SearchDateRangeComponent,
+        SearchSortingPickerComponent
     ],
     exports: [
         ...ALFRESCO_SEARCH_DIRECTIVES,
@@ -74,7 +77,8 @@ export const ALFRESCO_SEARCH_DIRECTIVES: any[] = [
         SearchSliderComponent,
         SearchNumberRangeComponent,
         SearchCheckListComponent,
-        SearchDateRangeComponent
+        SearchDateRangeComponent,
+        SearchSortingPickerComponent
     ],
     entryComponents: [
         SearchWidgetContainerComponent,

lib/core/app-config/schema.json

@@ -599,6 +599,46 @@
                   }
                 }
               }
+            },
+            "sorting": {
+              "description": "Sorting options and defaults",
+              "required": ["options"],
+              "properties": {
+                "options": {
+                  "type": "array",
+                  "minItems": 1,
+                  "items": {
+                      "description": "Sorting options available for users to choose from",
+                      "type": "object",
+                      "required": ["key", "label", "type", "field", "ascending"],
+                      "properties": {
+                        "key": { "type": "string" },
+                        "label": { "type": "string" },
+                        "type": { "type": "string" },
+                        "field": { "type": "string" },
+                        "ascending": { "type": "boolean" }
+                      }
+                    }
+                },
+                "defaults": {
+                  "description": "Predefined sorting to execute by default",
+                  "options": {
+                    "type": "array",
+                    "minItems": 1,
+                    "items": {
+                      "type": "object",
+                      "required": ["key", "label", "type", "field", "ascending"],
+                      "properties": {
+                        "key": { "type": "string" },
+                        "label": { "type": "string" },
+                        "type": { "type": "string" },
+                        "field": { "type": "string" },
+                        "ascending": { "type": "boolean" }
+                      }
+                    }
+                  }
+                }
+              }
             }
           }
         }

lib/core/components/sorting-picker/sorting-picker.component.html

@@ -0,0 +1,12 @@
+<mat-form-field>
+    <mat-select [(value)]="selected" (selectionChange)="onChanged($event)">
+        <mat-option *ngFor="let option of options" [value]="option.key">
+            {{ option.label | translate }}
+        </mat-option>
+    </mat-select>
+</mat-form-field>
+
+<button *ngIf="selected" mat-icon-button (click)="toggleSortDirection()">
+    <mat-icon *ngIf="ascending">arrow_upward</mat-icon>
+    <mat-icon *ngIf="!ascending">arrow_downward</mat-icon>
+</button>

lib/core/components/sorting-picker/sorting-picker.component.spec.ts

@@ -0,0 +1,52 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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 { SortingPickerComponent } from './sorting-picker.component';
+
+describe('SortingPickerComponent', () => {
+
+    let component: SortingPickerComponent;
+
+    beforeEach(() => {
+        component = new SortingPickerComponent();
+    });
+
+    it('should raise changed event on changing value', (done) => {
+        component.selected = 'key1';
+        component.ascending = false;
+
+        component.change.subscribe((event: { key: string, ascending: boolean }) =>  {
+            expect(event.key).toBe('key2');
+            expect(event.ascending).toBeFalsy();
+            done();
+        });
+        component.onChanged(<any> { value: 'key2' });
+    });
+
+    it('should raise changed event on changing direction', (done) => {
+        component.selected = 'key1';
+        component.ascending = false;
+
+        component.change.subscribe((event: { key: string, ascending: boolean }) =>  {
+            expect(event.key).toBe('key1');
+            expect(event.ascending).toBeTruthy();
+            done();
+        });
+        component.toggleSortDirection();
+    });
+
+});

lib/core/components/sorting-picker/sorting-picker.component.ts

@@ -0,0 +1,61 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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 { Component, ViewEncapsulation, Input, EventEmitter, Output } from '@angular/core';
+import { MatSelectChange } from '@angular/material';
+
+@Component({
+    selector: 'adf-sorting-picker',
+    templateUrl: './sorting-picker.component.html',
+    encapsulation: ViewEncapsulation.None,
+    host: { class: 'adf-sorting-picker' }
+})
+export class SortingPickerComponent {
+
+    /** Available sorting options */
+    @Input()
+    options: Array<{key: string, label: string}> = [];
+
+    /** Currently selected option key */
+    @Input()
+    selected: string;
+
+    /** Current sorting direction */
+    @Input()
+    ascending = true;
+
+    /** Raised each time sorting key or direction gets changed. */
+    @Output()
+    change = new EventEmitter<{ key: string, ascending: boolean }>();
+
+    onChanged(event: MatSelectChange) {
+        this.selected = event.value;
+        this.raiseChangedEvent();
+    }
+
+    toggleSortDirection() {
+        this.ascending = !this.ascending;
+        this.raiseChangedEvent();
+    }
+
+    private raiseChangedEvent() {
+        this.change.emit({
+            key: this.selected,
+            ascending: this.ascending
+        });
+    }
+}

lib/core/core.module.ts

@@ -81,6 +81,7 @@ import { UserPreferencesService } from './services/user-preferences.service';
 import { SearchConfigurationService } from './services/search-configuration.service';
 import { startupServiceFactory } from './services/startup-service-factory';
 import { EmptyContentComponent } from './components/empty-content/empty-content.component';
+import { SortingPickerComponent } from './components/sorting-picker/sorting-picker.component';
 
 export function createTranslateLoader(http: HttpClient, logService: LogService) {
     return new TranslateLoaderService(http, logService);
@@ -232,7 +233,8 @@ export class CoreModuleLazy {
         })
     ],
     declarations: [
-        EmptyContentComponent
+        EmptyContentComponent,
+        SortingPickerComponent
     ],
     exports: [
         AboutModule,
@@ -262,7 +264,8 @@ export class CoreModuleLazy {
         DataTableModule,
         TranslateModule,
         ButtonsMenuModule,
-        EmptyContentComponent
+        EmptyContentComponent,
+        SortingPickerComponent
     ],
     providers: [
         ...providers(),

lib/core/index.ts

@@ -36,6 +36,7 @@ export * from './comments/index';
 export * from './buttons-menu/index';
 
 export * from './components/empty-content/empty-content.component';
+export * from './components/sorting-picker/sorting-picker.component';
 
 export * from './pipes/index';
 export * from './services/index';