refactor import preview strings

client/src/app/shared/utils/previewStrings.ts

@@ -0,0 +1,38 @@
+import { stripHtmlTags } from './strip-html-tags';
+
+/**
+ * Helper to get a preview string
+ *
+ * @param input
+ * @returns returns the first and last 150 characters of a string; used within
+ * tooltips for previews
+ */
+export function getLongPreview(input: string): string {
+    if (!input || !input.length) {
+        return '';
+    }
+    if (input.length < 300) {
+        return stripHtmlTags(input);
+    }
+    return (
+        stripHtmlTags(input.substring(0, 147)) +
+        ' [...] ' +
+        stripHtmlTags(input.substring(input.length - 150, input.length))
+    );
+}
+
+/**
+ * Get the first characters of a string, for preview purposes
+ *
+ * @param input any string
+ * @returns a string with at most 50 characters
+ */
+export function getShortPreview(input: string): string {
+    if (!input || !input.length) {
+        return '';
+    }
+    if (input.length > 50) {
+        return stripHtmlTags(input.substring(0, 47)) + '...';
+    }
+    return stripHtmlTags(input);
+}

client/src/app/site/agenda/components/agenda-import-list/agenda-import-list.component.ts

@@ -10,7 +10,6 @@ import { DurationService } from 'app/core/ui-services/duration.service';
 import { FileExportService } from 'app/core/ui-services/file-export.service';
 import { itemVisibilityChoices } from 'app/shared/models/agenda/item';
 import { ViewCreateTopic } from '../../models/view-create-topic';
-import { stripHtmlTags } from 'app/shared/utils/strip-html-tags';
 
 /**
  * Component for the agenda import list view.
@@ -49,44 +48,6 @@ export class AgendaImportListComponent extends BaseImportListComponent<ViewCreat
         this.textAreaForm = formBuilder.group({ inputtext: [''] });
     }
 
-    /**
-     * Get the first characters of a string, for preview purposes
-     *
-     * @param input any string
-     * @returns a string with at most 50 characters
-     */
-    public getShortPreview(input: string): string {
-        if (!input) {
-            return '';
-        }
-        if (input.length > 50) {
-            return stripHtmlTags(input.substring(0, 47)) + '...';
-        }
-        return stripHtmlTags(input);
-    }
-
-    /**
-     * Fetch the first and last 150 characters of a string; used within
-     * tooltips for the preview
-     *
-     * @param input any string
-     * @returns a string with the first and last 150 characters of the input
-     * string
-     */
-    public getLongPreview(input: string): string {
-        if (!input) {
-            return '';
-        }
-        if (input.length < 300) {
-            return stripHtmlTags(input);
-        }
-        return (
-            stripHtmlTags(input.substring(0, 147)) +
-            ' [...] ' +
-            stripHtmlTags(input.substring(input.length - 150, input.length))
-        );
-    }
-
     /**
      * Triggers an example csv download
      */

client/src/app/site/base/base-import-list.ts

@@ -6,6 +6,7 @@ import { BaseViewModel } from './base-view-model';
 import { NewEntry, ValueLabelCombination, BaseImportService } from 'app/core/ui-services/base-import.service';
 import { Title } from '@angular/platform-browser';
 import { TranslateService } from '@ngx-translate/core';
+import { getLongPreview, getShortPreview } from 'app/shared/utils/previewStrings';
 
 export abstract class BaseImportListComponent<V extends BaseViewModel> extends BaseViewComponent implements OnInit {
     /**
@@ -13,6 +14,16 @@ export abstract class BaseImportListComponent<V extends BaseViewModel> extends B
      */
     public dataSource: MatTableDataSource<NewEntry<V>>;
 
+    /**
+     * Helper function for previews
+     */
+    public getLongPreview = getLongPreview;
+
+    /**
+     * Helper function for previews
+     */
+    public getShortPreview = getShortPreview;
+
     /**
      * Switch that turns true if a file has been selected in the input
      */

client/src/app/site/motions/components/motion-import-list/motion-import-list.component.ts

@@ -8,7 +8,6 @@ import { BaseImportListComponent } from 'app/site/base/base-import-list';
 import { MotionCsvExportService } from '../../services/motion-csv-export.service';
 import { MotionImportService } from '../../services/motion-import.service';
 import { ViewMotion } from '../../models/view-motion';
-import { stripHtmlTags } from 'app/shared/utils/strip-html-tags';
 
 /**
  * Component for the motion import list view.
@@ -37,35 +36,6 @@ export class MotionImportListComponent extends BaseImportListComponent<ViewMotio
         super(importer, titleService, translate, matSnackBar);
     }
 
-    /**
-     * Returns the first characters of a string, for preview purposes
-     *
-     * @param input
-     */
-    public getShortPreview(input: string): string {
-        if (input.length > 50) {
-            return stripHtmlTags(input.substring(0, 47)) + '...';
-        }
-        return stripHtmlTags(input);
-    }
-
-    /**
-     * Returns the first and last 150 characters of a string; used within
-     * tooltips for the preview
-     *
-     * @param input
-     */
-    public getLongPreview(input: string): string {
-        if (input.length < 300) {
-            return stripHtmlTags(input);
-        }
-        return (
-            stripHtmlTags(input.substring(0, 147)) +
-            ' [...] ' +
-            stripHtmlTags(input.substring(input.length - 150, input.length))
-        );
-    }
-
     /**
      * Triggers an example csv download
      */

client/src/app/site/motions/components/statute-paragraph-list/statute-import-list/statute-import-list.component.ts

@@ -7,7 +7,6 @@ import { BaseImportListComponent } from 'app/site/base/base-import-list';
 import { ViewStatuteParagraph } from 'app/site/motions/models/view-statute-paragraph';
 import { StatuteImportService } from 'app/site/motions/services/statute-import.service';
 import { StatuteCsvExportService } from 'app/site/motions/services/statute-csv-export.service';
-import { stripHtmlTags } from 'app/shared/utils/strip-html-tags';
 
 /**
  * Component for the statute paragraphs import list view.
@@ -36,35 +35,6 @@ export class StatuteImportListComponent extends BaseImportListComponent<ViewStat
         super(importer, titleService, translate, matSnackBar);
     }
 
-    /**
-     * Returns the first characters of a string, for preview purposes
-     *
-     * @param input
-     */
-    public getShortPreview(input: string): string {
-        if (input.length > 50) {
-            return stripHtmlTags(input.substring(0, 47)) + '...';
-        }
-        return stripHtmlTags(input);
-    }
-
-    /**
-     * Returns the first and last 150 characters of a string; used within
-     * tooltips for the preview
-     *
-     * @param input
-     */
-    public getLongPreview(input: string): string {
-        if (input.length < 300) {
-            return stripHtmlTags(input);
-        }
-        return (
-            stripHtmlTags(input.substring(0, 147)) +
-            ' [...] ' +
-            stripHtmlTags(input.substring(input.length - 150, input.length))
-        );
-    }
-
     /**
      * Triggers an example csv download
      */