Type fixes (#7759)

* Some type fixes
* Fix missing property on tooltip option type

types/core/index.d.ts

@@ -233,7 +233,7 @@ export interface IParsingOptions {
 }
 
 export interface Chart<
-  T = number,
+  T = unknown,
   L = string,
   C extends IChartConfiguration<string, T, L> = IChartConfiguration<string, T, L>
 > {
@@ -245,7 +245,6 @@ export interface Chart<
   readonly width: number;
   readonly height: number;
   readonly aspectRatio: number;
-  readonly options: ConfigurationOptions<C>;
   readonly boxes: ILayoutItem[];
   readonly currentDevicePixelRatio: number;
   readonly chartArea: IChartArea;
@@ -254,6 +253,8 @@ export interface Chart<
   readonly scale: Scale | undefined;
   readonly attached: boolean;
 
+  options: ConfigurationOptions<C>;
+
   clear(): this;
   stop(): this;
 
@@ -300,7 +301,7 @@ export declare type ChartItem =
 
 export const Chart: {
   prototype: Chart;
-  new <T = number, L = string, C extends IChartConfiguration<string, T, L> = IChartConfiguration<string, T, L>>(
+  new <T = unknown, L = string, C extends IChartConfiguration<string, T, L> = IChartConfiguration<string, T, L>>(
     item: ChartItem,
     config: C
   ): Chart<T, L, C>;

types/interfaces.d.ts

@@ -37,7 +37,7 @@ export type DeepPartial<T> = T extends {}
     }
   : T;
 
-export type IChartDataset<T = number, O = {}> = DeepPartial<IControllerDatasetOptions & IParsingOptions & O> & {
+export type IChartDataset<T = unknown, O = {}> = DeepPartial<IControllerDatasetOptions & IParsingOptions & O> & {
   data: T[];
 };
 
@@ -53,7 +53,7 @@ export type IDoughnutControllerDataset<T = IDoughnutDataPoint> = IChartDataset<T
 export type IPolarAreaControllerDataset<T = number> = IChartDataset<T, IPolarAreaControllerDatasetOptions>;
 export type IRadarControllerDataset<T = number> = IChartDataset<T, IRadarControllerDatasetOptions>;
 
-export interface IChartData<T = number, L = string, DS extends IChartDataset<T> = IChartDataset<T>>
+export interface IChartData<T = unknown, L = string, DS extends IChartDataset<T> = IChartDataset<T>>
   extends DeepPartial<IParsingOptions> {
   labels: L[];
   datasets: DS[];
@@ -61,6 +61,7 @@ export interface IChartData<T = number, L = string, DS extends IChartDataset<T>
 
 export type IChartOptions<O = {}> = DeepPartial<
   ICoreChartOptions &
+    IParsingOptions &
     ITooltipChartOptions &
     ILegendChartOptions &
     ITitleChartOptions &
@@ -72,7 +73,7 @@ export type IChartOptions<O = {}> = DeepPartial<
 
 export interface IChartConfiguration<
   TYPE = string,
-  T = number,
+  T = unknown,
   L = string,
   DS extends IChartDataset<T> = IChartDataset<T>,
   O = {}

types/plugins/index.d.ts

@@ -1,7 +1,7 @@
 import { Chart, Element, IAnimationSpecContainer, InteractionMode, LayoutPosition, IPlugin } from '../core';
-import { Color, IChartArea, IFontSpec, Scriptable, TextAlign, IEvent } from '../core/interfaces';
+import { Color, IChartArea, IFontSpec, Scriptable, TextAlign, IEvent, IHoverInteractionOptions } from '../core/interfaces';
 import { PointStyle } from '../elements';
-import { IChartData } from '../interfaces';
+import { IChartData, IChartDataset } from '../interfaces';
 
 export const Filler: IPlugin;
 
@@ -325,7 +325,7 @@ export interface ITooltipPlugin<O = {}> {
   afterTooltipDraw?(chart: Chart, args: { tooltip: TooltipModel }, options: O): void;
 }
 
-export interface ITooltipOptions {
+export interface ITooltipOptions extends IHoverInteractionOptions {
   /**
    * Are on-canvas tooltips enabled?
    * @default true
@@ -335,18 +335,10 @@ export interface ITooltipOptions {
    * 	See custom tooltip section.
    */
   custom(this: TooltipModel, args: { chart: Chart; tooltip: TooltipModel }): void;
-  /**
-   * Sets which elements appear in the tooltip.
-   */
-  mode: InteractionMode;
   /**
    * The mode for positioning the tooltip
    */
   position: 'average' | 'nearest';
-  /**
-   * If true, the tooltip mode applies only when the mouse position intersects with an element. If false, the mode will be applied at all times.
-   */
-  intersect: boolean;
 
   /**
    * Sort tooltip items.
@@ -514,7 +506,7 @@ export interface ITooltipItem {
   /**
    * The dataset the item comes from
    */
-  dataset: object;
+  dataset: IChartDataset;
 
   /**
    * Index of the dataset the item comes from

types/scales/index.d.ts

@@ -180,7 +180,7 @@ export const CategoryScale: IChartComponent & {
   new <O extends ICategoryScaleOptions = ICategoryScaleOptions>(cfg: any): CategoryScale<O>;
 };
 
-export type ILinearScaleOptions = IScaleOptions & {
+export type ILinearScaleOptions = ICartesianScaleOptions & {
   stacked?: boolean;
 
   /**
@@ -281,12 +281,16 @@ export type ITimeScaleOptions = ICartesianScaleOptions & {
      */
     isoWeekday: false | string;
     /**
-     * 	Sets how different time units are displayed.
+     * Sets how different time units are displayed.
      * @see https://www.chartjs.org/docs/next/axes/cartesian/time#display-formats
      */
     displayFormats: {
       [key: string]: string;
     };
+    /**
+     * The format string to use for the tooltip.
+     */
+    tooltipFormat: string;
     /**
      * If defined, will force the unit to be a certain type. See Time Units section below for details.
      * @default false