tldraw/state/state.ts
2021-06-16 13:09:45 +01:00

1779 lines
52 KiB
TypeScript

import { createSelectorHook, createState } from '@state-designer/react'
import { updateFromCode } from 'lib/code/generate'
import { createShape, getShapeUtils } from 'lib/shape-utils'
import vec from 'utils/vec'
import inputs from './inputs'
import history from './history'
import storage from './storage'
import * as Sessions from './sessions'
import commands from './commands'
import {
getChildren,
getCommonBounds,
getCurrent,
getCurrentCamera,
getPage,
getSelectedBounds,
getSelectedShapes,
getShape,
screenToWorld,
setZoomCSS,
rotateBounds,
getBoundsCenter,
getDocumentBranch,
getCameraZoom,
getSelectedIds,
setSelectedIds,
getPageState,
} from 'utils/utils'
import {
Data,
PointerInfo,
Shape,
ShapeType,
Corner,
Edge,
CodeControl,
MoveType,
ShapeStyles,
DistributeType,
AlignType,
StretchType,
DashStyle,
SizeStyle,
ColorStyle,
FontSize,
} from 'types'
import session from './session'
import { pointInBounds } from 'utils/bounds'
const initialData: Data = {
isReadOnly: false,
settings: {
fontSize: 13,
isDarkMode: false,
isCodeOpen: false,
isStyleOpen: false,
isToolLocked: false,
isPenLocked: false,
nudgeDistanceLarge: 10,
nudgeDistanceSmall: 1,
},
currentStyle: {
size: SizeStyle.Medium,
color: ColorStyle.Black,
dash: DashStyle.Solid,
fontSize: FontSize.Medium,
isFilled: false,
},
activeTool: 'select',
brush: undefined,
boundsRotation: 0,
pointedId: null,
hoveredId: null,
editingId: null,
currentPageId: 'page1',
currentParentId: 'page1',
currentCodeFileId: 'file0',
codeControls: {},
document: {
id: '0001',
name: 'My Document',
pages: {
page1: {
id: 'page1',
type: 'page',
name: 'Page 1',
childIndex: 0,
shapes: {},
},
},
code: {
file0: {
id: 'file0',
name: 'index.ts',
code: ``,
},
},
},
pageStates: {
page1: {
id: 'page1',
selectedIds: new Set([]),
camera: {
point: [0, 0],
zoom: 1,
},
},
},
}
const state = createState({
data: initialData,
on: {
UNMOUNTED: [{ unless: 'isReadOnly', do: 'forceSave' }, { to: 'loading' }],
},
initial: 'loading',
states: {
loading: {
on: {
MOUNTED: [
'restoreSavedData',
{
to: 'ready',
},
],
},
},
ready: {
onEnter: {
wait: 0.01,
if: 'hasSelection',
do: 'zoomCameraToSelectionActual',
else: ['zoomCameraToFit', 'zoomCameraToActual'],
},
on: {
TOGGLED_SHAPE_LOCK: { if: 'hasSelection', do: 'lockSelection' },
TOGGLED_SHAPE_HIDE: { if: 'hasSelection', do: 'hideSelection' },
TOGGLED_SHAPE_ASPECT_LOCK: {
if: 'hasSelection',
do: 'aspectLockSelection',
},
TOGGLED_CODE_PANEL_OPEN: 'toggleCodePanel',
TOGGLED_STYLE_PANEL_OPEN: 'toggleStylePanel',
POINTED_CANVAS: ['closeStylePanel', 'clearCurrentParentId'],
CHANGED_STYLE: ['updateStyles', 'applyStylesToSelection'],
USED_PEN_DEVICE: 'enablePenLock',
DISABLED_PEN_LOCK: 'disablePenLock',
CLEARED_PAGE: {
if: 'hasSelection',
do: 'deleteSelection',
else: ['selectAll', 'deleteSelection'],
},
CHANGED_PAGE: 'changePage',
CREATED_PAGE: ['clearSelectedIds', 'createPage'],
DELETED_PAGE: { unless: 'hasOnlyOnePage', do: 'deletePage' },
LOADED_FROM_FILE: ['loadDocumentFromJson', 'resetHistory'],
PANNED_CAMERA: {
do: 'panCamera',
},
},
initial: 'selecting',
states: {
selecting: {
onEnter: 'setActiveToolSelect',
on: {
UNDO: 'undo',
REDO: 'redo',
SAVED: 'forceSave',
LOADED_FROM_FILE_STSTEM: 'loadFromFileSystem',
SAVED_TO_FILESYSTEM: 'saveToFileSystem',
SAVED_AS_TO_FILESYSTEM: 'saveAsToFileSystem',
SAVED_CODE: 'saveCode',
DELETED: 'deleteSelection',
INCREASED_CODE_FONT_SIZE: 'increaseCodeFontSize',
DECREASED_CODE_FONT_SIZE: 'decreaseCodeFontSize',
CHANGED_CODE_CONTROL: 'updateControls',
GENERATED_FROM_CODE: ['setCodeControls', 'setGeneratedShapes'],
TOGGLED_TOOL_LOCK: 'toggleToolLock',
MOVED_TO_PAGE: {
if: 'hasSelection',
do: ['moveSelectionToPage', 'zoomCameraToSelectionActual'],
},
MOVED: { if: 'hasSelection', do: 'moveSelection' },
DUPLICATED: { if: 'hasSelection', do: 'duplicateSelection' },
ROTATED_CCW: { if: 'hasSelection', do: 'rotateSelectionCcw' },
ALIGNED: { if: 'hasMultipleSelection', do: 'alignSelection' },
STRETCHED: { if: 'hasMultipleSelection', do: 'stretchSelection' },
DISTRIBUTED: {
if: 'hasMultipleSelection',
do: 'distributeSelection',
},
GROUPED: { if: 'hasMultipleSelection', do: 'groupSelection' },
UNGROUPED: {
if: ['hasSelection', 'selectionIncludesGroups'],
do: 'ungroupSelection',
},
SELECTED_ALL: { to: 'selecting', do: 'selectAll' },
NUDGED: { do: 'nudgeSelection' },
SELECTED_SELECT_TOOL: { to: 'selecting' },
SELECTED_DRAW_TOOL: { unless: 'isReadOnly', to: 'draw' },
SELECTED_ARROW_TOOL: { unless: 'isReadOnly', to: 'arrow' },
SELECTED_DOT_TOOL: { unless: 'isReadOnly', to: 'dot' },
SELECTED_CIRCLE_TOOL: { unless: 'isReadOnly', to: 'circle' },
SELECTED_ELLIPSE_TOOL: { unless: 'isReadOnly', to: 'ellipse' },
SELECTED_RAY_TOOL: { unless: 'isReadOnly', to: 'ray' },
SELECTED_LINE_TOOL: { unless: 'isReadOnly', to: 'line' },
SELECTED_POLYLINE_TOOL: { unless: 'isReadOnly', to: 'polyline' },
SELECTED_RECTANGLE_TOOL: { unless: 'isReadOnly', to: 'rectangle' },
ZOOMED_CAMERA: {
do: 'zoomCamera',
},
ZOOMED_TO_ACTUAL: {
if: 'hasSelection',
do: 'zoomCameraToSelectionActual',
else: 'zoomCameraToActual',
},
ZOOMED_TO_SELECTION: {
if: 'hasSelection',
do: 'zoomCameraToSelection',
},
ZOOMED_TO_FIT: ['zoomCameraToFit', 'zoomCameraToActual'],
ZOOMED_IN: 'zoomIn',
ZOOMED_OUT: 'zoomOut',
RESET_CAMERA: 'resetCamera',
},
initial: 'notPointing',
states: {
notPointing: {
on: {
CANCELLED: 'clearSelectedIds',
STARTED_PINCHING: { to: 'pinching' },
POINTED_CANVAS: { to: 'brushSelecting' },
POINTED_BOUNDS: [
{
if: 'isPressingMetaKey',
to: 'brushSelecting',
},
{ to: 'pointingBounds' },
],
POINTED_BOUNDS_HANDLE: {
if: 'isPointingRotationHandle',
to: 'rotatingSelection',
else: { to: 'transformingSelection' },
},
STARTED_EDITING_SHAPE: {
get: 'firstSelectedShape',
if: ['hasSingleSelection', 'canEditSelectedShape'],
do: 'setEditingId',
to: 'editingShape',
},
DOUBLE_POINTED_BOUNDS_HANDLE: {
if: 'hasSingleSelection',
do: 'resetShapeBounds',
},
POINTED_HANDLE: { to: 'translatingHandles' },
MOVED_OVER_SHAPE: {
if: 'pointHitsShape',
then: {
unless: 'shapeIsHovered',
do: 'setHoveredId',
},
else: {
if: 'shapeIsHovered',
do: 'clearHoveredId',
},
},
UNHOVERED_SHAPE: 'clearHoveredId',
DOUBLE_POINTED_SHAPE: [
'setPointedId',
{
if: 'isPointedShapeSelected',
then: {
get: 'firstSelectedShape',
if: 'canEditSelectedShape',
do: 'setEditingId',
to: 'editingShape',
},
},
{
unless: 'isPressingShiftKey',
do: [
'setDrilledPointedId',
'clearSelectedIds',
'pushPointedIdToSelectedIds',
],
to: 'pointingBounds',
},
],
POINTED_SHAPE: [
{
if: 'isPressingMetaKey',
to: 'brushSelecting',
},
'setPointedId',
{
if: 'pointInSelectionBounds',
to: 'pointingBounds',
},
{
unless: 'isPointedShapeSelected',
then: {
if: 'isPressingShiftKey',
do: ['pushPointedIdToSelectedIds', 'clearPointedId'],
else: ['clearSelectedIds', 'pushPointedIdToSelectedIds'],
},
},
{
to: 'pointingBounds',
},
],
RIGHT_POINTED: [
{
if: 'isPointingCanvas',
do: 'clearSelectedIds',
else: {
if: 'isPointingShape',
then: [
'setPointedId',
{
unless: 'isPointedShapeSelected',
do: [
'clearSelectedIds',
'pushPointedIdToSelectedIds',
],
},
],
},
},
],
},
},
pointingBounds: {
on: {
STOPPED_POINTING_BOUNDS: [],
STOPPED_POINTING: [
{
if: 'isPointingBounds',
do: 'clearSelectedIds',
},
{
if: 'isPressingShiftKey',
then: [
{
if: 'isPointedShapeSelected',
do: 'pullPointedIdFromSelectedIds',
},
],
else: {
unless: 'isPointingBounds',
do: ['clearSelectedIds', 'pushPointedIdToSelectedIds'],
},
},
{ to: 'notPointing' },
],
MOVED_POINTER: {
unless: 'isReadOnly',
if: 'distanceImpliesDrag',
to: 'translatingSelection',
},
},
},
rotatingSelection: {
onEnter: 'startRotateSession',
onExit: 'clearBoundsRotation',
on: {
MOVED_POINTER: 'updateRotateSession',
PANNED_CAMERA: 'updateRotateSession',
PRESSED_SHIFT_KEY: 'keyUpdateRotateSession',
RELEASED_SHIFT_KEY: 'keyUpdateRotateSession',
STOPPED_POINTING: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
transformingSelection: {
onEnter: 'startTransformSession',
on: {
// MOVED_POINTER: 'updateTransformSession', using hacks.fastTransform
PANNED_CAMERA: 'updateTransformSession',
PRESSED_SHIFT_KEY: 'keyUpdateTransformSession',
RELEASED_SHIFT_KEY: 'keyUpdateTransformSession',
STOPPED_POINTING: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
translatingSelection: {
onEnter: 'startTranslateSession',
on: {
MOVED_POINTER: 'updateTranslateSession',
PANNED_CAMERA: 'updateTranslateSession',
PRESSED_SHIFT_KEY: 'keyUpdateTranslateSession',
RELEASED_SHIFT_KEY: 'keyUpdateTranslateSession',
PRESSED_ALT_KEY: 'keyUpdateTranslateSession',
RELEASED_ALT_KEY: 'keyUpdateTranslateSession',
STOPPED_POINTING: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
translatingHandles: {
onEnter: 'startHandleSession',
on: {
MOVED_POINTER: 'updateHandleSession',
PANNED_CAMERA: 'updateHandleSession',
PRESSED_SHIFT_KEY: 'keyUpdateHandleSession',
RELEASED_SHIFT_KEY: 'keyUpdateHandleSession',
STOPPED_POINTING: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
brushSelecting: {
onEnter: [
{
unless: ['isPressingMetaKey', 'isPressingShiftKey'],
do: 'clearSelectedIds',
},
'clearBoundsRotation',
'startBrushSession',
],
on: {
STARTED_PINCHING: { do: 'completeSession', to: 'pinching' },
// MOVED_POINTER: 'updateBrushSession', using hacks.fastBrushSelect
PANNED_CAMERA: 'updateBrushSession',
STOPPED_POINTING: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
},
},
editingShape: {
onEnter: 'startEditSession',
onExit: 'clearEditingId',
on: {
EDITED_SHAPE: { do: 'updateEditSession' },
BLURRED_SHAPE: { do: 'completeSession', to: 'selecting' },
CANCELLED: { do: 'cancelSession', to: 'selecting' },
},
},
pinching: {
on: {
// PINCHED: { do: 'pinchCamera' }, using hacks.fastPinchCamera
},
initial: 'selectPinching',
onExit: { secretlyDo: 'updateZoomCSS' },
states: {
selectPinching: {
on: {
STOPPED_PINCHING: { to: 'selecting' },
},
},
toolPinching: {
on: {
STOPPED_PINCHING: { to: 'usingTool.previous' },
},
},
},
},
usingTool: {
initial: 'draw',
onEnter: 'clearSelectedIds',
on: {
STARTED_PINCHING: {
do: 'breakSession',
to: 'pinching.toolPinching',
},
TOGGLED_TOOL_LOCK: 'toggleToolLock',
SELECTED_SELECT_TOOL: { to: 'selecting' },
SELECTED_DRAW_TOOL: { unless: 'isReadOnly', to: 'draw' },
SELECTED_ARROW_TOOL: { unless: 'isReadOnly', to: 'arrow' },
SELECTED_DOT_TOOL: { unless: 'isReadOnly', to: 'dot' },
SELECTED_CIRCLE_TOOL: { unless: 'isReadOnly', to: 'circle' },
SELECTED_ELLIPSE_TOOL: { unless: 'isReadOnly', to: 'ellipse' },
SELECTED_RAY_TOOL: { unless: 'isReadOnly', to: 'ray' },
SELECTED_LINE_TOOL: { unless: 'isReadOnly', to: 'line' },
SELECTED_POLYLINE_TOOL: { unless: 'isReadOnly', to: 'polyline' },
SELECTED_RECTANGLE_TOOL: { unless: 'isReadOnly', to: 'rectangle' },
ZOOMED_CAMERA: {
do: 'zoomCamera',
},
PANNED_CAMERA: {
do: 'panCamera',
},
ZOOMED_TO_ACTUAL: {
if: 'hasSelection',
do: 'zoomCameraToSelectionActual',
else: 'zoomCameraToActual',
},
ZOOMED_TO_SELECTION: {
if: 'hasSelection',
do: 'zoomCameraToSelection',
},
ZOOMED_TO_FIT: ['zoomCameraToFit', 'zoomCameraToActual'],
ZOOMED_IN: 'zoomIn',
ZOOMED_OUT: 'zoomOut',
RESET_CAMERA: 'resetCamera',
},
states: {
draw: {
onEnter: 'setActiveToolDraw',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
get: 'newDraw',
do: 'createShape',
to: 'draw.editing',
},
POINTED_CANVAS: {
get: 'newDraw',
do: 'createShape',
to: 'draw.editing',
},
UNDO: 'undo',
REDO: 'redo',
SAVED: 'forceSave',
LOADED_FROM_FILE_STSTEM: 'loadFromFileSystem',
SAVED_TO_FILESYSTEM: 'saveToFileSystem',
SAVED_AS_TO_FILESYSTEM: 'saveAsToFileSystem',
},
},
editing: {
onEnter: 'startDrawSession',
on: {
CANCELLED: {
do: 'breakSession',
to: 'selecting',
},
STOPPED_POINTING: {
do: 'completeSession',
to: 'draw.creating',
},
PRESSED_SHIFT: 'keyUpdateDrawSession',
RELEASED_SHIFT: 'keyUpdateDrawSession',
// MOVED_POINTER: 'updateDrawSession',
PANNED_CAMERA: 'updateDrawSession',
},
},
},
},
dot: {
onEnter: 'setActiveToolDot',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
get: 'newDot',
do: 'createShape',
to: 'dot.editing',
},
POINTED_CANVAS: {
get: 'newDot',
do: 'createShape',
to: 'dot.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: [
'completeSession',
{
if: 'isToolLocked',
to: 'dot.creating',
else: {
to: 'selecting',
},
},
],
CANCELLED: {
do: 'breakSession',
to: 'selecting',
},
},
initial: 'inactive',
states: {
inactive: {
on: {
MOVED_POINTER: {
if: 'distanceImpliesDrag',
to: 'dot.editing.active',
},
},
},
active: {
onEnter: 'startTranslateSession',
on: {
MOVED_POINTER: 'updateTranslateSession',
PANNED_CAMERA: 'updateTranslateSession',
},
},
},
},
},
},
arrow: {
onEnter: 'setActiveToolArrow',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
get: 'newArrow',
do: 'createShape',
to: 'arrow.editing',
},
POINTED_CANVAS: {
get: 'newArrow',
do: 'createShape',
to: 'arrow.editing',
},
UNDO: { do: 'undo' },
REDO: { do: 'redo' },
},
},
editing: {
onEnter: 'startArrowSession',
on: {
STOPPED_POINTING: [
'completeSession',
{
if: 'isToolLocked',
to: 'arrow.creating',
else: { to: 'selecting' },
},
],
CANCELLED: {
do: 'breakSession',
if: 'isToolLocked',
to: 'arrow.creating',
else: { to: 'selecting' },
},
PRESSED_SHIFT: 'keyUpdateArrowSession',
RELEASED_SHIFT: 'keyUpdateArrowSession',
MOVED_POINTER: 'updateArrowSession',
PANNED_CAMERA: 'updateArrowSession',
},
},
},
},
circle: {
onEnter: 'setActiveToolCircle',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
to: 'circle.editing',
},
POINTED_CANVAS: {
to: 'circle.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: { to: 'selecting' },
CANCELLED: { to: 'selecting' },
MOVED_POINTER: {
if: 'distanceImpliesDrag',
then: {
get: 'newCircle',
do: 'createShape',
to: 'drawingShape.bounds',
},
},
},
},
},
},
ellipse: {
onEnter: 'setActiveToolEllipse',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_CANVAS: {
to: 'ellipse.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: { to: 'selecting' },
CANCELLED: { to: 'selecting' },
MOVED_POINTER: {
if: 'distanceImpliesDrag',
then: {
get: 'newEllipse',
do: 'createShape',
to: 'drawingShape.bounds',
},
},
},
},
},
},
rectangle: {
onEnter: 'setActiveToolRectangle',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
to: 'rectangle.editing',
},
POINTED_CANVAS: {
to: 'rectangle.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: { to: 'selecting' },
CANCELLED: { to: 'selecting' },
MOVED_POINTER: {
if: 'distanceImpliesDrag',
then: {
get: 'newRectangle',
do: 'createShape',
to: 'drawingShape.bounds',
},
},
},
},
},
},
ray: {
onEnter: 'setActiveToolRay',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
get: 'newRay',
do: 'createShape',
to: 'ray.editing',
},
POINTED_CANVAS: {
get: 'newRay',
do: 'createShape',
to: 'ray.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: { to: 'selecting' },
CANCELLED: { to: 'selecting' },
MOVED_POINTER: {
if: 'distanceImpliesDrag',
to: 'drawingShape.direction',
},
},
},
},
},
line: {
onEnter: 'setActiveToolLine',
initial: 'creating',
states: {
creating: {
on: {
CANCELLED: { to: 'selecting' },
POINTED_SHAPE: {
get: 'newLine',
do: 'createShape',
to: 'line.editing',
},
POINTED_CANVAS: {
get: 'newLine',
do: 'createShape',
to: 'line.editing',
},
},
},
editing: {
on: {
STOPPED_POINTING: { to: 'selecting' },
CANCELLED: { to: 'selecting' },
MOVED_POINTER: {
if: 'distanceImpliesDrag',
to: 'drawingShape.direction',
},
},
},
},
},
polyline: {
onEnter: 'setActiveToolPolyline',
},
},
},
drawingShape: {
on: {
STOPPED_POINTING: [
'completeSession',
{
if: 'isToolLocked',
to: 'usingTool.previous',
else: { to: 'selecting' },
},
],
CANCELLED: {
do: 'breakSession',
to: 'selecting',
},
},
initial: 'drawingShapeBounds',
states: {
bounds: {
onEnter: 'startDrawTransformSession',
on: {
MOVED_POINTER: 'updateTransformSession',
PANNED_CAMERA: 'updateTransformSession',
},
},
direction: {
onEnter: 'startDirectionSession',
on: {
MOVED_POINTER: 'updateDirectionSession',
PANNED_CAMERA: 'updateDirectionSession',
},
},
},
},
},
},
},
results: {
newArrow() {
return ShapeType.Arrow
},
newDraw() {
return ShapeType.Draw
},
newDot() {
return ShapeType.Dot
},
newRay() {
return ShapeType.Ray
},
newLine() {
return ShapeType.Line
},
newCircle() {
return ShapeType.Circle
},
newEllipse() {
return ShapeType.Ellipse
},
newRectangle() {
return ShapeType.Rectangle
},
firstSelectedShape(data) {
return getSelectedShapes(data)[0]
},
},
conditions: {
isPointingCanvas(data, payload: PointerInfo) {
return payload.target === 'canvas'
},
isPointingBounds(data, payload: PointerInfo) {
return getSelectedIds(data).size > 0 && payload.target === 'bounds'
},
isPointingShape(data, payload: PointerInfo) {
return (
payload.target &&
payload.target !== 'canvas' &&
payload.target !== 'bounds'
)
},
isReadOnly(data) {
return data.isReadOnly
},
canEditSelectedShape(data, payload, result: Shape) {
return getShapeUtils(result).canEdit
},
distanceImpliesDrag(data, payload: PointerInfo) {
return vec.dist2(payload.origin, payload.point) > 8
},
hasPointedTarget(data, payload: PointerInfo) {
return payload.target !== undefined
},
isPointedShapeSelected(data) {
return getSelectedIds(data).has(data.pointedId)
},
isPressingShiftKey(data, payload: PointerInfo) {
return payload.shiftKey
},
isPressingMetaKey(data, payload: PointerInfo) {
return payload.metaKey
},
shapeIsHovered(data, payload: { target: string }) {
return data.hoveredId === payload.target
},
pointInSelectionBounds(data, payload: PointerInfo) {
if (getSelectedIds(data).size === 0) return false
return pointInBounds(
screenToWorld(payload.point, data),
getSelectionBounds(data)
)
},
pointHitsShape(data, payload: PointerInfo) {
const shape = getShape(data, payload.target)
return getShapeUtils(shape).hitTest(
shape,
screenToWorld(payload.point, data)
)
},
isPointingRotationHandle(
data,
payload: { target: Edge | Corner | 'rotate' }
) {
return payload.target === 'rotate'
},
hasSelection(data) {
return getSelectedIds(data).size > 0
},
hasSingleSelection(data) {
return getSelectedIds(data).size === 1
},
hasMultipleSelection(data) {
return getSelectedIds(data).size > 1
},
isToolLocked(data) {
return data.settings.isToolLocked
},
isPenLocked(data) {
return data.settings.isPenLocked
},
hasOnlyOnePage(data) {
return Object.keys(data.document.pages).length === 1
},
selectionIncludesGroups(data) {
return getSelectedShapes(data).some(
(shape) => shape.type === ShapeType.Group
)
},
},
actions: {
/* ---------------------- Pages --------------------- */
changePage(data, payload: { id: string }) {
commands.changePage(data, payload.id)
},
createPage(data) {
commands.createPage(data)
},
deletePage(data, payload: { id: string }) {
commands.deletePage(data, payload.id)
},
/* --------------------- Shapes --------------------- */
createShape(data, payload, type: ShapeType) {
const shape = createShape(type, {
parentId: data.currentPageId,
point: vec.round(screenToWorld(payload.point, data)),
style: getCurrent(data.currentStyle),
})
const siblings = getChildren(data, shape.parentId)
const childIndex = siblings.length
? siblings[siblings.length - 1].childIndex + 1
: 1
getShapeUtils(shape).setProperty(shape, 'childIndex', childIndex)
getPage(data).shapes[shape.id] = shape
setSelectedIds(data, [shape.id])
},
/* -------------------- Sessions -------------------- */
// Shared
breakSession(data) {
session.current?.cancel(data)
session.clear()
history.disable()
commands.deleteSelected(data)
history.enable()
},
cancelSession(data) {
session.current?.cancel(data)
session.clear()
},
completeSession(data) {
session.current?.complete(data)
session.clear()
},
// Editing
startEditSession(data) {
session.current = new Sessions.EditSession(data)
},
updateEditSession(data, payload: { change: Partial<Shape> }) {
session.current.update(data, payload.change)
},
// Brushing
startBrushSession(data, payload: PointerInfo) {
session.current = new Sessions.BrushSession(
data,
screenToWorld(payload.point, data)
)
},
updateBrushSession(data, payload: PointerInfo) {
session.current.update(data, screenToWorld(payload.point, data))
},
// Rotating
startRotateSession(data, payload: PointerInfo) {
session.current = new Sessions.RotateSession(
data,
screenToWorld(payload.point, data)
)
},
keyUpdateRotateSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.shiftKey
)
},
updateRotateSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.shiftKey
)
},
// Dragging / Translating
startTranslateSession(data) {
session.current = new Sessions.TranslateSession(
data,
screenToWorld(inputs.pointer.origin, data)
)
},
keyUpdateTranslateSession(
data,
payload: { shiftKey: boolean; altKey: boolean }
) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.shiftKey,
payload.altKey
)
},
updateTranslateSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.shiftKey,
payload.altKey
)
},
// Dragging Handle
startHandleSession(data, payload: PointerInfo) {
const shapeId = Array.from(getSelectedIds(data).values())[0]
const handleId = payload.target
session.current = new Sessions.HandleSession(
data,
shapeId,
handleId,
screenToWorld(inputs.pointer.origin, data)
)
},
keyUpdateHandleSession(
data,
payload: { shiftKey: boolean; altKey: boolean }
) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.shiftKey,
payload.altKey
)
},
updateHandleSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.shiftKey,
payload.altKey
)
},
// Transforming
startTransformSession(
data,
payload: PointerInfo & { target: Corner | Edge }
) {
const point = screenToWorld(inputs.pointer.origin, data)
session.current =
getSelectedIds(data).size === 1
? new Sessions.TransformSingleSession(data, payload.target, point)
: new Sessions.TransformSession(data, payload.target, point)
},
startDrawTransformSession(data, payload: PointerInfo) {
session.current = new Sessions.TransformSingleSession(
data,
Corner.BottomRight,
screenToWorld(payload.point, data),
true
)
},
keyUpdateTransformSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.shiftKey,
payload.altKey
)
},
updateTransformSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.shiftKey,
payload.altKey
)
},
// Direction
startDirectionSession(data, payload: PointerInfo) {
session.current = new Sessions.DirectionSession(
data,
screenToWorld(inputs.pointer.origin, data)
)
},
updateDirectionSession(data, payload: PointerInfo) {
session.current.update(data, screenToWorld(payload.point, data))
},
// Drawing
startDrawSession(data, payload: PointerInfo) {
const id = Array.from(getSelectedIds(data).values())[0]
session.current = new Sessions.DrawSession(
data,
id,
screenToWorld(inputs.pointer.origin, data),
payload.shiftKey
)
},
keyUpdateDrawSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.pressure,
payload.shiftKey
)
},
updateDrawSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.pressure,
payload.shiftKey
)
},
// Arrow
startArrowSession(data, payload: PointerInfo) {
const id = Array.from(getSelectedIds(data).values())[0]
session.current = new Sessions.ArrowSession(
data,
id,
screenToWorld(inputs.pointer.origin, data),
payload.shiftKey
)
},
keyUpdateArrowSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(inputs.pointer.point, data),
payload.shiftKey
)
},
updateArrowSession(data, payload: PointerInfo) {
session.current.update(
data,
screenToWorld(payload.point, data),
payload.shiftKey
)
},
// Nudges
nudgeSelection(data, payload: { delta: number[]; shiftKey: boolean }) {
commands.nudge(
data,
vec.mul(
payload.delta,
payload.shiftKey
? data.settings.nudgeDistanceLarge
: data.settings.nudgeDistanceSmall
)
)
},
/* -------------------- Selection ------------------- */
selectAll(data) {
const selectedIds = getSelectedIds(data)
const page = getPage(data)
selectedIds.clear()
for (let id in page.shapes) {
if (page.shapes[id].parentId === data.currentPageId) {
selectedIds.add(id)
}
}
},
setHoveredId(data, payload: PointerInfo) {
data.hoveredId = payload.target
},
clearHoveredId(data) {
data.hoveredId = undefined
},
setPointedId(data, payload: PointerInfo) {
data.pointedId = getPointedId(data, payload.target)
data.currentParentId = getParentId(data, data.pointedId)
},
setDrilledPointedId(data, payload: PointerInfo) {
data.pointedId = getDrilledPointedId(data, payload.target)
data.currentParentId = getParentId(data, data.pointedId)
},
clearCurrentParentId(data) {
data.currentParentId = data.currentPageId
data.pointedId = undefined
},
clearPointedId(data) {
data.pointedId = undefined
},
clearSelectedIds(data) {
setSelectedIds(data, [])
},
pullPointedIdFromSelectedIds(data) {
const { pointedId } = data
const selectedIds = getSelectedIds(data)
selectedIds.delete(pointedId)
},
pushPointedIdToSelectedIds(data) {
getSelectedIds(data).add(data.pointedId)
},
moveSelection(data, payload: { type: MoveType }) {
commands.move(data, payload.type)
},
moveSelectionToPage(data, payload: { id: string }) {
commands.moveToPage(data, payload.id)
},
alignSelection(data, payload: { type: AlignType }) {
commands.align(data, payload.type)
},
stretchSelection(data, payload: { type: StretchType }) {
commands.stretch(data, payload.type)
},
distributeSelection(data, payload: { type: DistributeType }) {
commands.distribute(data, payload.type)
},
duplicateSelection(data) {
commands.duplicate(data)
},
lockSelection(data) {
commands.toggle(data, 'isLocked')
},
hideSelection(data) {
commands.toggle(data, 'isHidden')
},
aspectLockSelection(data) {
commands.toggle(data, 'isAspectRatioLocked')
},
deleteSelection(data) {
commands.deleteSelected(data)
},
rotateSelectionCcw(data) {
commands.rotateCcw(data)
},
groupSelection(data) {
commands.group(data)
},
ungroupSelection(data) {
commands.ungroup(data)
},
resetShapeBounds(data) {
commands.resetBounds(data)
},
/* --------------------- Editing -------------------- */
setEditingId(data) {
const selectedShape = getSelectedShapes(data)[0]
if (getShapeUtils(selectedShape).canEdit) {
data.editingId = selectedShape.id
}
getPageState(data).selectedIds = new Set([selectedShape.id])
},
clearEditingId(data) {
data.editingId = null
},
/* ---------------------- Tool ---------------------- */
setActiveTool(data, payload: { tool: ShapeType | 'select' }) {
data.activeTool = payload.tool
},
setActiveToolSelect(data) {
data.activeTool = 'select'
},
setActiveToolDraw(data) {
data.activeTool = ShapeType.Draw
},
setActiveToolRectangle(data) {
data.activeTool = ShapeType.Rectangle
},
setActiveToolEllipse(data) {
data.activeTool = ShapeType.Ellipse
},
setActiveToolArrow(data) {
data.activeTool = ShapeType.Arrow
},
setActiveToolDot(data) {
data.activeTool = ShapeType.Dot
},
setActiveToolPolyline(data) {
data.activeTool = ShapeType.Polyline
},
setActiveToolRay(data) {
data.activeTool = ShapeType.Ray
},
setActiveToolCircle(data) {
data.activeTool = ShapeType.Circle
},
setActiveToolLine(data) {
data.activeTool = ShapeType.Line
},
/* --------------------- Camera --------------------- */
zoomIn(data) {
const camera = getCurrentCamera(data)
const i = Math.round((camera.zoom * 100) / 25)
const center = [window.innerWidth / 2, window.innerHeight / 2]
const p0 = screenToWorld(center, data)
camera.zoom = getCameraZoom((i + 1) * 0.25)
const p1 = screenToWorld(center, data)
camera.point = vec.add(camera.point, vec.sub(p1, p0))
setZoomCSS(camera.zoom)
},
zoomOut(data) {
const camera = getCurrentCamera(data)
const i = Math.round((camera.zoom * 100) / 25)
const center = [window.innerWidth / 2, window.innerHeight / 2]
const p0 = screenToWorld(center, data)
camera.zoom = getCameraZoom((i - 1) * 0.25)
const p1 = screenToWorld(center, data)
camera.point = vec.add(camera.point, vec.sub(p1, p0))
setZoomCSS(camera.zoom)
},
zoomCameraToActual(data) {
const camera = getCurrentCamera(data)
const center = [window.innerWidth / 2, window.innerHeight / 2]
const p0 = screenToWorld(center, data)
camera.zoom = 1
const p1 = screenToWorld(center, data)
camera.point = vec.add(camera.point, vec.sub(p1, p0))
setZoomCSS(camera.zoom)
},
zoomCameraToSelectionActual(data) {
const camera = getCurrentCamera(data)
const bounds = getSelectedBounds(data)
const mx = (window.innerWidth - bounds.width) / 2
const my = (window.innerHeight - bounds.height) / 2
camera.zoom = 1
camera.point = vec.add([-bounds.minX, -bounds.minY], [mx, my])
setZoomCSS(camera.zoom)
},
zoomCameraToSelection(data) {
const camera = getCurrentCamera(data)
const bounds = getSelectedBounds(data)
const zoom = getCameraZoom(
bounds.width > bounds.height
? (window.innerWidth - 128) / bounds.width
: (window.innerHeight - 128) / bounds.height
)
const mx = (window.innerWidth - bounds.width * zoom) / 2 / zoom
const my = (window.innerHeight - bounds.height * zoom) / 2 / zoom
camera.zoom = zoom
camera.point = vec.add([-bounds.minX, -bounds.minY], [mx, my])
setZoomCSS(camera.zoom)
},
zoomCameraToFit(data) {
const camera = getCurrentCamera(data)
const page = getPage(data)
const shapes = Object.values(page.shapes)
if (shapes.length === 0) {
return
}
const bounds = getCommonBounds(
...Object.values(shapes).map((shape) =>
getShapeUtils(shape).getBounds(shape)
)
)
const zoom = getCameraZoom(
bounds.width > bounds.height
? (window.innerWidth - 128) / bounds.width
: (window.innerHeight - 128) / bounds.height
)
const mx = (window.innerWidth - bounds.width * zoom) / 2 / zoom
const my = (window.innerHeight - bounds.height * zoom) / 2 / zoom
camera.zoom = zoom
camera.point = vec.add([-bounds.minX, -bounds.minY], [mx, my])
setZoomCSS(camera.zoom)
},
zoomCamera(data, payload: { delta: number; point: number[] }) {
const camera = getCurrentCamera(data)
const next = camera.zoom - (payload.delta / 100) * camera.zoom
const p0 = screenToWorld(payload.point, data)
camera.zoom = getCameraZoom(next)
const p1 = screenToWorld(payload.point, data)
camera.point = vec.add(camera.point, vec.sub(p1, p0))
setZoomCSS(camera.zoom)
},
panCamera(data, payload: { delta: number[] }) {
const camera = getCurrentCamera(data)
camera.point = vec.sub(camera.point, vec.div(payload.delta, camera.zoom))
},
updateZoomCSS(data) {
const camera = getCurrentCamera(data)
setZoomCSS(camera.zoom)
},
pinchCamera(
data,
payload: {
delta: number[]
distanceDelta: number
angleDelta: number
point: number[]
}
) {
const camera = getCurrentCamera(data)
camera.point = vec.sub(camera.point, vec.div(payload.delta, camera.zoom))
const next = camera.zoom - (payload.distanceDelta / 300) * camera.zoom
const p0 = screenToWorld(payload.point, data)
camera.zoom = getCameraZoom(next)
const p1 = screenToWorld(payload.point, data)
camera.point = vec.add(camera.point, vec.sub(p1, p0))
setZoomCSS(camera.zoom)
},
resetCamera(data) {
const camera = getCurrentCamera(data)
camera.zoom = 1
camera.point = [window.innerWidth / 2, window.innerHeight / 2]
document.documentElement.style.setProperty('--camera-zoom', '1')
},
/* ---------------------- History ---------------------- */
// History
popHistory() {
history.pop()
},
enableHistory() {
history.enable()
},
disableHistory() {
history.disable()
},
undo(data) {
history.undo(data)
},
redo(data) {
history.redo(data)
},
resetHistory(data) {
history.reset()
},
/* --------------------- Styles --------------------- */
toggleStylePanel(data) {
data.settings.isStyleOpen = !data.settings.isStyleOpen
},
closeStylePanel(data) {
data.settings.isStyleOpen = false
},
updateStyles(data, payload: Partial<ShapeStyles>) {
Object.assign(data.currentStyle, payload)
},
applyStylesToSelection(data, payload: Partial<ShapeStyles>) {
commands.style(data, payload)
},
/* ---------------------- Code ---------------------- */
closeCodePanel(data) {
data.settings.isCodeOpen = false
},
openCodePanel(data) {
data.settings.isCodeOpen = true
},
toggleCodePanel(data) {
data.settings.isCodeOpen = !data.settings.isCodeOpen
},
setGeneratedShapes(
data,
payload: { shapes: Shape[]; controls: CodeControl[] }
) {
commands.generate(data, data.currentPageId, payload.shapes)
},
setCodeControls(data, payload: { controls: CodeControl[] }) {
data.codeControls = Object.fromEntries(
payload.controls.map((control) => [control.id, control])
)
},
increaseCodeFontSize(data) {
data.settings.fontSize++
},
decreaseCodeFontSize(data) {
data.settings.fontSize--
},
updateControls(data, payload: { [key: string]: any }) {
for (let key in payload) {
data.codeControls[key].value = payload[key]
}
history.disable()
setSelectedIds(data, [])
try {
const { shapes } = updateFromCode(
data,
data.document.code[data.currentCodeFileId].code
)
commands.generate(data, data.currentPageId, shapes)
} catch (e) {
console.error(e)
}
history.enable()
},
/* -------------------- Settings -------------------- */
enablePenLock(data) {
data.settings.isPenLocked = true
},
disablePenLock(data) {
data.settings.isPenLocked = false
},
toggleToolLock(data) {
data.settings.isToolLocked = !data.settings.isToolLocked
},
/* ---------------------- Data ---------------------- */
restoreSavedData(data) {
storage.firstLoad(data)
},
saveToFileSystem(data) {
storage.saveToFileSystem(data)
},
saveAsToFileSystem(data) {
storage.saveAsToFileSystem(data)
},
loadFromFileSystem() {
storage.loadDocumentFromFilesystem()
},
loadDocumentFromJson(data, payload: { json: any }) {
storage.loadDocumentFromJson(data, payload.json)
},
forceSave(data) {
storage.saveToFileSystem(data)
},
savePage(data) {
storage.savePage(data)
},
loadPage(data) {
storage.loadPage(data)
},
saveCode(data, payload: { code: string }) {
data.document.code[data.currentCodeFileId].code = payload.code
storage.saveDocumentToLocalStorage(data)
},
clearBoundsRotation(data) {
data.boundsRotation = 0
},
},
values: {
selectedIds(data) {
return new Set(getSelectedIds(data))
},
selectedBounds(data) {
return getSelectionBounds(data)
},
selectedStyle(data) {
const selectedIds = Array.from(getSelectedIds(data).values())
const { currentStyle } = data
if (selectedIds.length === 0) {
return currentStyle
}
const page = getPage(data)
const shapeStyles = selectedIds.map((id) => page.shapes[id].style)
const commonStyle: ShapeStyles = {} as ShapeStyles
const overrides = new Set<string>([])
for (const shapeStyle of shapeStyles) {
for (let key in currentStyle) {
if (overrides.has(key)) continue
if (commonStyle[key] === undefined) {
commonStyle[key] = shapeStyle[key]
} else {
if (commonStyle[key] === shapeStyle[key]) continue
commonStyle[key] = currentStyle[key]
overrides.add(key)
}
}
}
return commonStyle
},
},
})
export default state
export const useSelector = createSelectorHook(state)
function getParentId(data: Data, id: string) {
const shape = getPage(data).shapes[id]
return shape.parentId
}
function getPointedId(data: Data, id: string) {
const shape = getPage(data).shapes[id]
return shape.parentId === data.currentParentId ||
shape.parentId === data.currentPageId
? id
: getPointedId(data, shape.parentId)
}
function getDrilledPointedId(data: Data, id: string) {
const shape = getPage(data).shapes[id]
return shape.parentId === data.currentPageId ||
shape.parentId === data.pointedId ||
shape.parentId === data.currentParentId
? id
: getDrilledPointedId(data, shape.parentId)
}
function hasPointedIdInChildren(data: Data, id: string, pointedId: string) {
const shape = getPage(data).shapes[id]
if (shape.type !== ShapeType.Group) {
return false
}
if (shape.children.includes(pointedId)) {
return true
}
return shape.children.some((childId) =>
hasPointedIdInChildren(data, childId, pointedId)
)
}
function getSelectionBounds(data: Data) {
const selectedIds = getSelectedIds(data)
const page = getPage(data)
const shapes = Array.from(selectedIds.values())
.map((id) => page.shapes[id])
.filter(Boolean)
if (selectedIds.size === 0) return null
if (selectedIds.size === 1) {
if (!shapes[0]) {
console.error('Could not find that shape! Clearing selected IDs.')
setSelectedIds(data, [])
return null
}
const shape = shapes[0]
const shapeUtils = getShapeUtils(shape)
if (!shapeUtils.canTransform) return null
let bounds = shapeUtils.getBounds(shape)
let parentId = shape.parentId
while (parentId !== data.currentPageId) {
const parent = page.shapes[parentId]
bounds = rotateBounds(
bounds,
getBoundsCenter(getShapeUtils(parent).getBounds(parent)),
parent.rotation
)
bounds.rotation = parent.rotation
parentId = parent.parentId
}
return bounds
}
const uniqueSelectedShapeIds: string[] = Array.from(
new Set(
Array.from(selectedIds.values()).flatMap((id) =>
getDocumentBranch(data, id)
)
).values()
)
const commonBounds = getCommonBounds(
...uniqueSelectedShapeIds
.map((id) => page.shapes[id])
.filter((shape) => shape.type !== ShapeType.Group)
.map((shape) => getShapeUtils(shape).getRotatedBounds(shape))
)
return commonBounds
}