Put interaction components and utils in a dedicated folder

apps/storybook/src/Pan.stories.tsx

@@ -1,5 +1,5 @@
 import { Pan, ResetZoomButton, VisCanvas, Zoom } from '@h5web/lib';
-import type { ModifierKey as ModifierKeyType } from '@h5web/lib/src/vis/models';
+import type { ModifierKey as ModifierKeyType } from '@h5web/lib';
 import type { Meta, Story } from '@storybook/react';
 
 import VisCanvasStoriesConfig from './VisCanvas.stories';

apps/storybook/src/SelectToZoom.stories.tsx

@@ -6,7 +6,7 @@ import {
   SelectToZoom,
   ResetZoomButton,
 } from '@h5web/lib';
-import type { ModifierKey as ModifierKeyType } from '@h5web/lib/src/vis/models';
+import type { ModifierKey as ModifierKeyType } from '@h5web/lib';
 import type { Meta, Story } from '@storybook/react';
 import { range } from 'lodash';
 

apps/storybook/src/Selection.stories.tsx

@@ -1,3 +1,4 @@
+import type { Selection, ModifierKey } from '@h5web/lib';
 import {
   Pan,
   SelectionLine,
@@ -7,7 +8,6 @@ import {
   Zoom,
   ResetZoomButton,
 } from '@h5web/lib';
-import type { ModifierKey, Selection } from '@h5web/lib/src/vis/models';
 import type { Meta, Story } from '@storybook/react';
 import { format } from 'd3-format';
 import { useState } from 'react';

apps/storybook/src/XZoom.stories.tsx

@@ -1,5 +1,5 @@
 import { Pan, ResetZoomButton, VisCanvas, XAxisZoom } from '@h5web/lib';
-import type { ModifierKey as ModifierKeyType } from '@h5web/lib/src/vis/models';
+import type { ModifierKey as ModifierKeyType } from '@h5web/lib';
 import type { Meta, Story } from '@storybook/react';
 
 import VisCanvasStoriesConfig from './VisCanvas.stories';

apps/storybook/src/YZoom.stories.tsx

@@ -1,5 +1,5 @@
 import { Pan, ResetZoomButton, VisCanvas, YAxisZoom } from '@h5web/lib';
-import type { ModifierKey as ModifierKeyType } from '@h5web/lib/src/vis/models';
+import type { ModifierKey as ModifierKeyType } from '@h5web/lib';
 import type { Meta, Story } from '@storybook/react';
 
 import VisCanvasStoriesConfig from './VisCanvas.stories';

apps/storybook/src/Zoom.stories.tsx

@@ -1,5 +1,5 @@
 import { Pan, ResetZoomButton, VisCanvas, Zoom } from '@h5web/lib';
-import type { ModifierKey as ModifierKeyType } from '@h5web/lib/src/vis/models';
+import type { ModifierKey as ModifierKeyType } from '@h5web/lib';
 import type { Meta, Story } from '@storybook/react';
 
 import VisCanvasStoriesConfig from './VisCanvas.stories';

packages/lib/src/index.ts

@@ -27,12 +27,6 @@ export { default as InteractionHelp } from './toolbar/controls/InteractionHelp';
 // Building blocks
 export { default as VisCanvas } from './vis/shared/VisCanvas';
 export type { VisCanvasProps } from './vis/shared/VisCanvas';
-export { default as Pan } from './vis/shared/Pan';
-export { default as Zoom } from './vis/shared/Zoom';
-export { default as XAxisZoom } from './vis/shared/XAxisZoom';
-export { default as YAxisZoom } from './vis/shared/YAxisZoom';
-export { default as SelectToZoom } from './vis/shared/SelectToZoom';
-export { default as ResetZoomButton } from './vis/shared/ResetZoomButton';
 export { default as TooltipMesh } from './vis/shared/TooltipMesh';
 export type { TooltipMeshProps } from './vis/shared/TooltipMesh';
 export { default as VisMesh } from './vis/shared/VisMesh';
@@ -43,14 +37,22 @@ export type { HeatmapMeshProps } from './vis/heatmap/HeatmapMesh';
 export { default as DataCurve } from './vis/line/DataCurve';
 export { default as Html } from './vis/shared/Html';
 export { default as Annotation } from './vis/shared/Annotation';
-export { default as SelectionTool } from './vis/shared/SelectionTool';
-export type { SelectionProps } from './vis/shared/SelectionTool';
-export { default as SelectionLine } from './vis/shared/SelectionLine';
-export { default as SelectionRect } from './vis/shared/SelectionRect';
 export { default as TiledHeatmap } from './vis/tiles/TiledHeatmap';
 export type { TiledHeatmapProps } from './vis/tiles/TiledHeatmap';
 export { getLayerSizes, TilesApi } from './vis/tiles/api';
 
+// Interactions
+export { default as Pan } from './interactions/Pan';
+export { default as Zoom } from './interactions/Zoom';
+export { default as XAxisZoom } from './interactions/XAxisZoom';
+export { default as YAxisZoom } from './interactions/YAxisZoom';
+export { default as SelectToZoom } from './interactions/SelectToZoom';
+export { default as ResetZoomButton } from './interactions/ResetZoomButton';
+export { default as SelectionLine } from './interactions/SelectionLine';
+export { default as SelectionRect } from './interactions/SelectionRect';
+export { default as SelectionTool } from './interactions/SelectionTool';
+export type { SelectionProps } from './interactions/SelectionTool';
+
 // Context hook
 export { useAxisSystemContext } from './vis/shared/AxisSystemContext';
 export type { AxisSystemParams } from './vis/shared/AxisSystemContext';
@@ -82,13 +84,17 @@ export {
 export { useVisDomain, useSafeDomain } from './vis/heatmap/hooks';
 
 export { scaleGamma } from './vis/scaleGamma';
-export { useCanvasEvents } from './vis/shared/hooks';
+export { useCanvasEvents } from './interactions/hooks';
 
 // Models
 export { INTERPOLATORS } from './vis/heatmap/interpolators';
 export { ScaleType } from '@h5web/shared';
 export { CurveType } from './vis/line/models';
-export type { Interaction } from './vis/models';
+export type {
+  Interaction,
+  ModifierKey,
+  Selection,
+} from './interactions/models';
 
 export type { Domain, Dims } from '@h5web/shared';
 

packages/lib/src/vis/shared/Pan.tsx → packages/lib/src/interactions/Pan.tsx

@@ -2,9 +2,9 @@ import { useThree } from '@react-three/fiber';
 import { useRef, useCallback } from 'react';
 import type { Vector3 } from 'three';
 
-import type { CanvasEvent, ModifierKey } from '../models';
-import { checkModifierKey } from '../utils';
 import { useCanvasEvents, useMoveCameraTo } from './hooks';
+import type { CanvasEvent, ModifierKey } from './models';
+import { checkModifierKey } from './utils';
 
 interface Props {
   disabled?: boolean;

packages/lib/src/vis/shared/ResetZoomButton.module.css → packages/lib/src/interactions/ResetZoomButton.module.css

@@ -6,14 +6,14 @@
 }
 
 .btn {
-  composes: btn from '../../toolbar/Toolbar.module.css';
+  composes: btn from '../toolbar/Toolbar.module.css';
   padding: 0.5rem !important; /* FIX style ordering issue with Vite */
   pointer-events: auto;
   font-size: 0.875em;
 }
 
 .btnLike {
-  composes: btnLike from '../../toolbar/Toolbar.module.css';
+  composes: btnLike from '../toolbar/Toolbar.module.css';
   background-color: rgba(255, 255, 255, 0.7);
   box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 0px 1px,
     rgba(0, 0, 0, 0.1) 0px 4px 11px;

packages/lib/src/vis/shared/ResetZoomButton.tsx → packages/lib/src/interactions/ResetZoomButton.tsx

@@ -1,7 +1,7 @@
 import { useThree } from '@react-three/fiber';
 
-import { useFrameRendering } from '../hooks';
-import Html from './Html';
+import { useFrameRendering } from '../vis/hooks';
+import Html from '../vis/shared/Html';
 import styles from './ResetZoomButton.module.css';
 import { useMoveCameraTo } from './hooks';
 

packages/lib/src/vis/shared/SelectToZoom.tsx → packages/lib/src/interactions/SelectToZoom.tsx

@@ -1,11 +1,11 @@
 import { useThree } from '@react-three/fiber';
 
-import type { ModifierKey, Selection } from '../models';
-import { getRatioEndPoint } from '../utils';
-import { useAxisSystemContext } from './AxisSystemContext';
+import { useAxisSystemContext } from '../vis/shared/AxisSystemContext';
 import SelectionRect from './SelectionRect';
 import SelectionTool from './SelectionTool';
 import { useMoveCameraTo } from './hooks';
+import type { ModifierKey, Selection } from './models';
+import { getRatioEndPoint } from './utils';
 
 interface Props {
   modifierKey?: ModifierKey;

packages/lib/src/vis/shared/SelectionLine.tsx → packages/lib/src/interactions/SelectionLine.tsx

@@ -2,8 +2,8 @@ import { useThree } from '@react-three/fiber';
 import type { SVGProps } from 'react';
 import type { Vector2 } from 'three';
 
-import { useAxisSystemContext } from './AxisSystemContext';
-import Html from './Html';
+import { useAxisSystemContext } from '../vis/shared/AxisSystemContext';
+import Html from '../vis/shared/Html';
 
 interface Props extends SVGProps<SVGLineElement> {
   startPoint: Vector2;

packages/lib/src/vis/shared/SelectionRect.tsx → packages/lib/src/interactions/SelectionRect.tsx

@@ -2,8 +2,8 @@ import { useThree } from '@react-three/fiber';
 import type { SVGProps } from 'react';
 import type { Vector2 } from 'three';
 
-import { useAxisSystemContext } from './AxisSystemContext';
-import Html from './Html';
+import { useAxisSystemContext } from '../vis/shared/AxisSystemContext';
+import Html from '../vis/shared/Html';
 
 interface Props extends SVGProps<SVGRectElement> {
   startPoint: Vector2;

packages/lib/src/vis/shared/SelectionTool.tsx → packages/lib/src/interactions/SelectionTool.tsx

@@ -4,10 +4,10 @@ import type { ReactElement } from 'react';
 import { useCallback, useState } from 'react';
 import type { Vector2 } from 'three';
 
-import type { CanvasEvent, ModifierKey, Selection } from '../models';
-import { boundPointToFOV, checkModifierKey } from '../utils';
-import { useAxisSystemContext } from './AxisSystemContext';
+import { useAxisSystemContext } from '../vis/shared/AxisSystemContext';
 import { useCanvasEvents } from './hooks';
+import type { CanvasEvent, ModifierKey, Selection } from './models';
+import { boundPointToFOV, checkModifierKey } from './utils';
 
 interface Props {
   onSelectionStart?: () => void;

packages/lib/src/vis/shared/XAxisZoom.tsx → packages/lib/src/interactions/XAxisZoom.tsx

@@ -1,5 +1,5 @@
-import type { ModifierKey } from '../models';
 import { useCanvasEvents, useZoomOnWheel } from './hooks';
+import type { ModifierKey } from './models';
 
 interface Props {
   disabled?: boolean;

packages/lib/src/vis/shared/YAxisZoom.tsx → packages/lib/src/interactions/YAxisZoom.tsx

@@ -1,5 +1,5 @@
-import type { ModifierKey } from '../models';
 import { useCanvasEvents, useZoomOnWheel } from './hooks';
+import type { ModifierKey } from './models';
 
 interface Props {
   disabled?: boolean;

packages/lib/src/vis/shared/Zoom.tsx → packages/lib/src/interactions/Zoom.tsx

@@ -1,6 +1,6 @@
-import type { ModifierKey } from '../models';
-import { checkModifierKey } from '../utils';
 import { useCanvasEvents, useZoomOnWheel } from './hooks';
+import type { ModifierKey } from './models';
+import { checkModifierKey } from './utils';
 
 interface Props {
   disabled?: boolean;

packages/lib/src/vis/shared/hooks.ts → packages/lib/src/interactions/hooks.ts

@@ -4,10 +4,9 @@ import { clamp } from 'lodash';
 import { useCallback } from 'react';
 import { Vector3 } from 'three';
 
-import { useWheelCapture } from '../hooks';
-import type { CanvasEvent, CanvasEventCallbacks } from '../models';
-import { getCameraFOV } from '../utils';
-import { useAxisSystemContext } from './AxisSystemContext';
+import { useAxisSystemContext } from '../vis/shared/AxisSystemContext';
+import { getCameraFOV } from '../vis/utils';
+import type { CanvasEvent, CanvasEventCallbacks } from './models';
 
 const ZOOM_FACTOR = 0.95;
 
@@ -43,6 +42,18 @@ export function useMoveCameraTo() {
   );
 }
 
+function onWheel(evt: WheelEvent) {
+  evt.preventDefault();
+}
+
+function useWheelCapture() {
+  const { domElement } = useThree((state) => state.gl);
+
+  // Handler must be registed as non-passive for `preventDefault` to have an effect
+  // (React's `onWheel` prop registers handlers as passive)
+  useEventListener(domElement, 'wheel', onWheel, { passive: false });
+}
+
 export function useZoomOnWheel(
   isZoomAllowed: (sourceEvent: WheelEvent) => { x: boolean; y: boolean },
   disabled?: boolean

packages/lib/src/interactions/models.ts

@@ -0,0 +1,25 @@
+import type { Vector2, Vector3 } from 'three';
+
+export type ModifierKey = 'Alt' | 'Control' | 'Shift';
+
+export interface Selection {
+  startPoint: Vector2;
+  endPoint: Vector2;
+}
+
+export interface CanvasEvent<T extends PointerEvent | WheelEvent> {
+  unprojectedPoint: Vector3;
+  sourceEvent: T;
+}
+
+export interface CanvasEventCallbacks {
+  onPointerDown?: (evt: CanvasEvent<PointerEvent>) => void;
+  onPointerMove?: (evt: CanvasEvent<PointerEvent>) => void;
+  onPointerUp?: (evt: CanvasEvent<PointerEvent>) => void;
+  onWheel?: (evt: CanvasEvent<WheelEvent>) => void;
+}
+
+export interface Interaction {
+  shortcut: string;
+  description: string;
+}

packages/lib/src/interactions/utils.ts

@@ -0,0 +1,55 @@
+import type { Camera } from '@react-three/fiber';
+import { clamp } from 'lodash';
+import type { Vector3 } from 'three';
+import { Vector2 } from 'three';
+
+import { getCameraFOV } from '../vis/utils';
+import type { ModifierKey } from './models';
+
+export function boundPointToFOV(
+  unboundedPoint: Vector2 | Vector3,
+  camera: Camera
+): Vector2 {
+  const { topRight, bottomLeft } = getCameraFOV(camera);
+  const boundedX = clamp(unboundedPoint.x, bottomLeft.x, topRight.x);
+  const boundedY = clamp(unboundedPoint.y, bottomLeft.y, topRight.y);
+  return new Vector2(boundedX, boundedY);
+}
+
+export function checkModifierKey(
+  modifierKey: ModifierKey | undefined,
+  event: MouseEvent | KeyboardEvent
+) {
+  if (!modifierKey) {
+    return !event.altKey && !event.ctrlKey && !event.shiftKey;
+  }
+
+  return event.getModifierState(modifierKey);
+}
+
+export function getRatioEndPoint(
+  startPoint: Vector2,
+  endPoint: Vector2,
+  ratio: number
+) {
+  const widthSign = Math.sign(endPoint.x - startPoint.x);
+  const width = Math.abs(endPoint.x - startPoint.x);
+
+  const heightSign = Math.sign(endPoint.y - startPoint.y);
+  const height = Math.abs(endPoint.y - startPoint.y);
+
+  const originalRatio =
+    Math.abs(endPoint.x - startPoint.x) / Math.abs(endPoint.y - startPoint.y);
+
+  if (originalRatio < ratio) {
+    return new Vector2(
+      startPoint.x + widthSign * height * ratio,
+      startPoint.y + heightSign * height
+    );
+  }
+
+  return new Vector2(
+    startPoint.x + widthSign * width,
+    startPoint.y + (heightSign * width) / ratio
+  );
+}

packages/lib/src/toolbar/Toolbar.tsx

@@ -3,7 +3,7 @@ import { useMap, useMeasure } from '@react-hookz/web';
 import type { ReactElement, ReactNode } from 'react';
 import flattenChildren from 'react-keyed-flatten-children';
 
-import type { Interaction } from '../vis/models';
+import type { Interaction } from '../interactions/models';
 import MeasuredControl from './MeasuredControl';
 import OverflowMenu from './OverflowMenu';
 import Separator from './Separator';

packages/lib/src/toolbar/controls/InteractionHelp.tsx

@@ -2,7 +2,7 @@ import { useClickOutside, useToggle } from '@react-hookz/web';
 import { useRef } from 'react';
 import { FiHelpCircle } from 'react-icons/fi';
 
-import type { Interaction } from '../../vis/models';
+import type { Interaction } from '../../interactions/models';
 import styles from './InteractionHelp.module.css';
 import ToggleBtn from './ToggleBtn';
 

packages/lib/src/vis/heatmap/HeatmapVis.tsx

@@ -9,14 +9,14 @@ import type { NdArray } from 'ndarray';
 import type { ReactElement, ReactNode } from 'react';
 
 import { XAxisZoom, YAxisZoom } from '../..';
+import Pan from '../../interactions/Pan';
+import ResetZoomButton from '../../interactions/ResetZoomButton';
+import SelectToZoom from '../../interactions/SelectToZoom';
+import Zoom from '../../interactions/Zoom';
 import { useAxisDomain, useValueToIndexScale } from '../hooks';
 import type { AxisParams, VisScaleType } from '../models';
-import Pan from '../shared/Pan';
-import ResetZoomButton from '../shared/ResetZoomButton';
-import SelectToZoom from '../shared/SelectToZoom';
 import TooltipMesh from '../shared/TooltipMesh';
 import VisCanvas from '../shared/VisCanvas';
-import Zoom from '../shared/Zoom';
 import { DEFAULT_DOMAIN, formatNumType } from '../utils';
 import ColorBar from './ColorBar';
 import HeatmapMesh from './HeatmapMesh';