refactor: change store logic and design

Author: iobuhov

packages/pluggableWidgets/datagrid-web/src/Datagrid.xml

@@ -57,9 +57,9 @@
                     <caption>Enable select all pages</caption>
                     <description>Allow select all through multiple pages (based on current filter). Only works if total count is known.</description>
                 </property>
-                <property key="selectAllPagesBufferSize" type="integer" defaultValue="500">
-                    <caption>Select all buffer size</caption>
-                    <description>Batch size for processing select all operations. If total count is less than buffer size, selection is immediate.</description>
+                <property key="selectAllPagesPageSize" type="integer" defaultValue="500">
+                    <caption>Select all page size</caption>
+                    <description>When selecting items from a large data source, items are selected in batches. This setting controls the size of the batches.</description>
                 </property>
                 <property key="selectingAllLabel" type="textTemplate" required="false">
                     <caption>Selecting all label</caption>

packages/pluggableWidgets/datagrid-web/src/features/data-export/ProgressStore.ts

@@ -1,7 +1,7 @@
 import { makeAutoObservable } from "mobx";
 
 export class ProgressStore {
-    exporting = false;
+    inProgress = false;
     lengthComputable = false;
     loaded = 0;
     total = 0;
@@ -10,7 +10,7 @@ export class ProgressStore {
     }
 
     onloadstart = (event: ProgressEvent): void => {
-        this.exporting = true;
+        this.inProgress = true;
         this.lengthComputable = event.lengthComputable;
         this.total = event.total;
         this.loaded = 0;
@@ -21,7 +21,7 @@ export class ProgressStore {
     };
 
     onloadend = (): void => {
-        this.exporting = false;
+        this.inProgress = false;
         this.lengthComputable = false;
         this.loaded = 0;
         this.total = 0;

packages/pluggableWidgets/datagrid-web/src/features/multi-page-selection/SelectAllProgressStore.ts

@@ -1,10 +1,10 @@
-export * from "./selection/types.js";
-export * from "./selection/helpers.js";
-export * from "./selection/keyboard.js";
 export {
     getGlobalSelectionContext,
     useCreateSelectionContextValue,
     useSelectionContextValue
 } from "./selection/context.js";
-export { MultiPageSelectionController } from "./selection/MultiPageSelectionController.js";
+export * from "./selection/helpers.js";
+export * from "./selection/keyboard.js";
 export { SelectActionHandler } from "./selection/select-action-handler.js";
+export { SelectAllController } from "./selection/SelectAllController.js";
+export * from "./selection/types.js";