refactor(backend): all backend service methods renamed as processOnX

- to remove confusion with Event Emitters, the 3 Backend Service API methods were renamed to start with the prefix "processOnX" instead of "onX"
- for example onFilterChanged is now processOnFilterChanged

aurelia-slickgrid/src/aurelia-slickgrid/models/backendService.interface.ts

@@ -56,11 +56,11 @@ export interface BackendService {
   // -----------------
 
   /** Execute when any of the filters changed */
-  onFilterChanged: (event: Event, args: FilterChangedArgs) => Promise<string>;
+  processOnFilterChanged: (event: Event, args: FilterChangedArgs) => Promise<string>;
 
   /** Execute when the pagination changed */
-  onPaginationChanged: (event: Event | undefined, args: PaginationChangedArgs) => string;
+  processOnPaginationChanged: (event: Event | undefined, args: PaginationChangedArgs) => string;
 
   /** Execute when any of the sorters changed */
-  onSortChanged: (event: Event | null, args: SortChangedArgs) => string;
+  processOnSortChanged: (event: Event | null, args: SortChangedArgs) => string;
 }

aurelia-slickgrid/src/aurelia-slickgrid/services/filter.service.ts

@@ -87,7 +87,7 @@ export class FilterService {
     }
 
     // call the service to get a query back
-    const query = await backendApi.service.onFilterChanged(event, args);
+    const query = await backendApi.service.processOnFilterChanged(event, args);
 
     // emit an onFilterChanged event
     this.emitFilterChanged('remote');

aurelia-slickgrid/src/aurelia-slickgrid/services/graphql.service.ts

@@ -250,7 +250,7 @@ export class GraphqlService implements BackendService {
   /*
    * FILTERING
    */
-  onFilterChanged(event: Event, args: FilterChangedArgs): Promise<string> {
+  processOnFilterChanged(event: Event, args: FilterChangedArgs): Promise<string> {
     const gridOptions: GridOption = this._gridOptions || args.grid.getOptions();
     const backendApi = gridOptions.backendServiceApi;
 
@@ -310,7 +310,7 @@ export class GraphqlService implements BackendService {
    *     }
    *   }
    */
-  onPaginationChanged(event: Event, args: PaginationChangedArgs) {
+  processOnPaginationChanged(event: Event, args: PaginationChangedArgs) {
     const pageSize = +(args.pageSize || ((this.pagination) ? this.pagination.pageSize : DEFAULT_PAGE_SIZE));
     this.updatePagination(args.newPage, pageSize);
 
@@ -323,7 +323,7 @@ export class GraphqlService implements BackendService {
    * we will use sorting as per a Facebook suggestion on a Github issue (with some small changes)
    * https://github.com/graphql/graphql-relay-js/issues/20#issuecomment-220494222
    */
-  onSortChanged(event: Event, args: SortChangedArgs) {
+  processOnSortChanged(event: Event, args: SortChangedArgs) {
     const sortColumns = (args.multiColumnSort) ? args.sortCols : new Array({ sortCol: args.sortCol, sortAsc: args.sortAsc });
 
     // loop through all columns to inspect sorters & set the query

aurelia-slickgrid/src/aurelia-slickgrid/services/grid-odata.service.ts

@@ -126,7 +126,7 @@ export class GridOdataService implements BackendService {
   /*
    * FILTERING
    */
-  onFilterChanged(event: Event, args: FilterChangedArgs): Promise<string> {
+  processOnFilterChanged(event: Event, args: FilterChangedArgs): Promise<string> {
     const serviceOptions: GridOption = args.grid.getOptions();
     const backendApi = serviceOptions.backendServiceApi;
 
@@ -159,7 +159,7 @@ export class GridOdataService implements BackendService {
   /*
    * PAGINATION
    */
-  onPaginationChanged(event: Event, args: PaginationChangedArgs) {
+  processOnPaginationChanged(event: Event, args: PaginationChangedArgs) {
     const pageSize = +(args.pageSize || DEFAULT_PAGE_SIZE);
     this.updatePagination(args.newPage, pageSize);
 
@@ -170,7 +170,7 @@ export class GridOdataService implements BackendService {
   /*
    * SORTING
    */
-  onSortChanged(event: Event, args: SortChangedArgs) {
+  processOnSortChanged(event: Event, args: SortChangedArgs) {
     const sortColumns = (args.multiColumnSort) ? args.sortCols : new Array({ sortCol: args.sortCol, sortAsc: args.sortAsc });
 
     // loop through all columns to inspect sorters & set the query

aurelia-slickgrid/src/aurelia-slickgrid/services/sort.service.ts

@@ -67,7 +67,7 @@ export class SortService {
     if (backendApi.preProcess) {
       backendApi.preProcess();
     }
-    const query = backendApi.service.onSortChanged(event, args);
+    const query = backendApi.service.processOnSortChanged(event, args);
     this.emitSortChanged('remote');
 
     // await for the Promise to resolve the data

aurelia-slickgrid/src/aurelia-slickgrid/slick-pagination.ts

@@ -160,7 +160,7 @@ export class SlickPaginationCustomElement {
         backendApi.preProcess();
       }
 
-      const query = backendApi.service.onPaginationChanged(event, { newPage: pageNumber, pageSize: itemsPerPage });
+      const query = backendApi.service.processOnPaginationChanged(event, { newPage: pageNumber, pageSize: itemsPerPage });
 
       // await for the Promise to resolve the data
       const processResult = await backendApi.process(query);