added new decorator for metadata representations

src/app/core/shared/context.model.ts

@@ -3,6 +3,7 @@
  */
 
 export enum Context {
+  Undefined = 'undefined',
   SearchList = 'searchList',
   SearchGrid = 'searchGrid',
   Submission = 'submission',

src/app/shared/items/item-type-decorator.ts

@@ -1,11 +1,9 @@
 import { hasNoValue, hasValue } from '../empty.util';
-import { MetadataRepresentationType } from '../../core/shared/metadata-representation/metadata-representation.model';
 import { ViewMode } from '../../core/shared/view-mode.model';
 
 export const DEFAULT_ITEM_TYPE = 'Default';
 export const DEFAULT_VIEW_MODE = ViewMode.ListElement;
-export const NO_REPRESENTATION_TYPE = MetadataRepresentationType.None;
-export const DEFAULT_REPRESENTATION_TYPE = MetadataRepresentationType.PlainText;
+
 
 const map = new Map();
 
@@ -13,23 +11,16 @@ const map = new Map();
  * Decorator used for rendering simple item pages by type and viewMode (and optionally a representationType)
  * @param type
  * @param viewMode
- * @param representationType
  */
-export function rendersItemType(type: string, viewMode: string, representationType?: MetadataRepresentationType) {
+export function rendersItemType(type: string, viewMode: string) {
   return function decorator(component: any) {
     if (hasNoValue(map.get(viewMode))) {
       map.set(viewMode, new Map());
     }
-    if (hasNoValue(map.get(viewMode).get(type))) {
-      map.get(viewMode).set(type, new Map());
+    if (hasValue(map.get(viewMode).get(type))) {
+      throw new Error(`There can't be more than one component to render Metadata of type "${type}" in view mode "${viewMode}"`);
     }
-    if (hasNoValue(representationType)) {
-      representationType = NO_REPRESENTATION_TYPE;
-    }
-    if (hasValue(map.get(viewMode).get(type).get(representationType))) {
-      throw new Error(`There can't be more than one component to render Metadata of type "${type}" in view mode "${viewMode}" with representation type "${representationType}"`);
-    }
-    map.get(viewMode).get(type).set(representationType, component);
+    map.get(viewMode).set(type, component);
   };
 }
 
@@ -37,24 +28,13 @@ export function rendersItemType(type: string, viewMode: string, representationTy
  * Get the component used for rendering an item by type and viewMode (and optionally a representationType)
  * @param type
  * @param viewMode
- * @param representationType
  */
-export function getComponentByItemType(type: string, viewMode: string, representationType?: MetadataRepresentationType) {
-  if (hasNoValue(representationType)) {
-    representationType = NO_REPRESENTATION_TYPE;
-  }
+export function getComponentByItemType(type: string, viewMode: string) {
   if (hasNoValue(map.get(viewMode))) {
     viewMode = DEFAULT_VIEW_MODE;
   }
   if (hasNoValue(map.get(viewMode).get(type))) {
     type = DEFAULT_ITEM_TYPE;
   }
-  let representationComponent = map.get(viewMode).get(type).get(representationType);
-  if (hasNoValue(representationComponent)) {
-    representationComponent = map.get(viewMode).get(type).get(DEFAULT_REPRESENTATION_TYPE);
-  }
-  if (hasNoValue(representationComponent)) {
-    representationComponent = map.get(viewMode).get(type).get(NO_REPRESENTATION_TYPE);
-  }
-  return representationComponent;
+  return map.get(viewMode).get(type);
 }

src/app/shared/items/switcher/item-type-switcher.component.ts

@@ -20,7 +20,7 @@ export class ItemTypeSwitcherComponent implements OnInit {
   /**
    * The item or metadata to determine the component for
    */
-  @Input() object: Item | SearchResult<Item> | MetadataRepresentation;
+  @Input() object: Item | SearchResult<Item>;
 
   /**
    * The preferred view-mode to display
@@ -50,11 +50,6 @@ export class ItemTypeSwitcherComponent implements OnInit {
    * @returns {string}
    */
   private getComponent(): string {
-    if (hasValue((this.object as any).representationType)) {
-      const metadataRepresentation = this.object as MetadataRepresentation;
-      return getComponentByItemType(metadataRepresentation.itemType, this.viewMode, metadataRepresentation.representationType);
-    }
-
     let item: Item;
     if (hasValue((this.object as any).indexableObject)) {
       const searchResult = this.object as ItemSearchResult;

src/app/shared/metadata-representation/metadata-representation.decorator.ts

@@ -0,0 +1,44 @@
+import { MetadataRepresentationType } from '../../core/shared/metadata-representation/metadata-representation.model';
+import { hasNoValue, hasValue } from '../empty.util';
+import { Context } from '../../core/shared/context.model';
+import { DEFAULT_ITEM_TYPE } from '../items/item-type-decorator';
+
+const map = new Map();
+
+export const DEFAULT_REPRESENTATION_TYPE = MetadataRepresentationType.PlainText;
+export const DEFAULT_CONTEXT = Context.Undefined;
+
+export function metadataRepresentationComponent(entityType: string, mdRepresentationType: MetadataRepresentationType, context: Context = DEFAULT_CONTEXT) {
+  return function decorator(component: any) {
+    if (hasNoValue(map.get(entityType))) {
+      map.set(entityType, new Map());
+    }
+
+    if (hasNoValue(map.get(entityType).get(mdRepresentationType))) {
+      map.get(entityType).set(mdRepresentationType, new Map());
+    }
+
+    if (hasValue(map.get(entityType).get(mdRepresentationType).get(context))) {
+      throw new Error(`There can't be more than one component to render Entity of type "${entityType}" in MetadataRepresentation "${mdRepresentationType}" with context "${context}"`);
+    }
+    map.get(entityType).get(mdRepresentationType).set(context, component);
+  }
+}
+
+export function getMetadataRepresentationComponent(entityType: string, mdRepresentationType: MetadataRepresentationType, context: Context = DEFAULT_CONTEXT) {
+  if (hasNoValue(entityType) || hasNoValue(map.get(entityType))) {
+    entityType = DEFAULT_ITEM_TYPE;
+  }
+
+  if (hasNoValue(map.get(entityType).get(mdRepresentationType))) {
+    mdRepresentationType = DEFAULT_REPRESENTATION_TYPE;
+  }
+
+  let representationComponent = map.get(entityType).get(mdRepresentationType).get(context);
+
+  if (hasNoValue(representationComponent)) {
+    representationComponent = map.get(entityType).get(mdRepresentationType).get(DEFAULT_REPRESENTATION_TYPE);
+  }
+
+  return representationComponent;
+}