(core) Simple localization support and currency selector.

Summary:
- Grist document has a associated "locale" setting that affects how currency is formatted.
- Currency selector for number format.

Test Plan: not done

Reviewers: dsagal

Reviewed By: dsagal

Subscribers: paulfitz

Differential Revision: https://phab.getgrist.com/D2977

app/client/models/DocModel.ts

@@ -111,6 +111,8 @@ export class DocModel {
   public pages: MTM<PageRec> = this._metaTableModel("_grist_Pages", createPageRec);
   public rules: MTM<ACLRuleRec> = this._metaTableModel("_grist_ACLRules", createACLRuleRec);
 
+  public docInfoRow: DocInfoRec;
+
   public allTables: KoArray<TableRec>;
   public allTableIds: KoArray<string>;
 
@@ -135,6 +137,8 @@ export class DocModel {
       model.loadData();
     }
 
+    this.docInfoRow = this.docInfo.getRowModel(1);
+
     // An observable array of user-visible tables, sorted by tableId, excluding summary tables.
     // This is a publicly exposed member.
     this.allTables = createUserTablesArray(this.tables);

app/client/models/SearchModel.ts

@@ -217,7 +217,7 @@ class FinderImpl implements IFinder {
 
     this._fieldStepper.array = section.viewFields().peek();
     this._fieldFormatters = this._fieldStepper.array.map(
-      f => createFormatter(f.displayColModel().type(), f.widgetOptionsJson()));
+      f => createFormatter(f.displayColModel().type(), f.widgetOptionsJson(), f.documentSettings()));
     return tableModel;
   }
 

app/client/models/entities/DocInfoRec.ts

@@ -1,13 +1,18 @@
 import {DocModel, IRowModel} from 'app/client/models/DocModel';
+import * as modelUtil from 'app/client/models/modelUtil';
+import {jsonObservable} from 'app/client/models/modelUtil';
+import {DocumentSettings} from 'app/common/DocumentSettings';
 import * as ko from 'knockout';
 
 // The document-wide metadata. It's all contained in a single record with id=1.
 export interface DocInfoRec extends IRowModel<"_grist_DocInfo"> {
+  documentSettingsJson: modelUtil.SaveableObjObservable<DocumentSettings>
   defaultViewId: ko.Computed<number>;
   newDefaultViewId: ko.Computed<number>;
 }
 
 export function createDocInfoRec(this: DocInfoRec, docModel: DocModel): void {
+  this.documentSettingsJson = jsonObservable(this.documentSettings);
   this.defaultViewId = this.autoDispose(ko.pureComputed(() => {
     const tab = docModel.allTabs.at(0);
     return tab ? tab.viewRef() : 0;

app/client/models/entities/ViewFieldRec.ts

@@ -1,6 +1,7 @@
 import {ColumnRec, DocModel, IRowModel, refRecord, ViewSectionRec} from 'app/client/models/DocModel';
 import * as modelUtil from 'app/client/models/modelUtil';
 import * as UserType from 'app/client/widgets/UserType';
+import {DocumentSettings} from 'app/common/DocumentSettings';
 import {BaseFormatter, createFormatter} from 'app/common/ValueFormatter';
 import {Computed, fromKo} from 'grainjs';
 import * as ko from 'knockout';
@@ -55,7 +56,6 @@ export interface ViewFieldRec extends IRowModel<"_grist_Views_section_field"> {
 
   // Observable for the object with the current options, either for the field or for the column,
   // which takes into account the default options for column's type.
-
   widgetOptionsJson: modelUtil.SaveableObjObservable<any>;
 
   // Whether lines should wrap in a cell.
@@ -73,6 +73,8 @@ export interface ViewFieldRec extends IRowModel<"_grist_Views_section_field"> {
   textColor: modelUtil.KoSaveableObservable<string|undefined>;
   fillColor: modelUtil.KoSaveableObservable<string>;
 
+  documentSettings: ko.PureComputed<DocumentSettings>;
+
   // Helper which adds/removes/updates field's displayCol to match the formula.
   saveDisplayFormula(formula: string): Promise<void>|undefined;
 
@@ -167,8 +169,8 @@ export function createViewFieldRec(this: ViewFieldRec, docModel: DocModel): void
   this.createVisibleColFormatter = function() {
     const vcol = this.visibleColModel();
     return (vcol.getRowId() !== 0) ?
-      createFormatter(vcol.type(), vcol.widgetOptionsJson()) :
-      createFormatter(this.column().type(), this.widgetOptionsJson());
+      createFormatter(vcol.type(), vcol.widgetOptionsJson(), this.documentSettings()) :
+      createFormatter(this.column().type(), this.widgetOptionsJson(), this.documentSettings());
   };
 
   // The widgetOptions to read and write: either the column's or the field's own.
@@ -179,7 +181,6 @@ export function createViewFieldRec(this: ViewFieldRec, docModel: DocModel): void
 
   // Observable for the object with the current options, either for the field or for the column,
   // which takes into account the default options for this column's type.
-
   this.widgetOptionsJson = modelUtil.jsonObservable(this._widgetOptionsStr,
     (opts: any) => UserType.mergeOptions(opts || {}, this.column().pureType()));
 
@@ -211,4 +212,6 @@ export function createViewFieldRec(this: ViewFieldRec, docModel: DocModel): void
     read: () => fillColorProp(),
     write: (setter, val) => setter(fillColorProp, val.toUpperCase() === '#FFFFFF' ? '' : val),
   });
+
+  this.documentSettings = ko.pureComputed(() => docModel.docInfoRow.documentSettingsJson());
 }