Files
grungnet/src/hooks/useMapSelection.tsx
2021-08-05 14:47:00 +10:00

127 lines
3.7 KiB
TypeScript

import { useEffect, useState } from "react";
import SelectionDragOverlay from "../components/selection/SelectionDragOverlay";
import SelectionMenu from "../components/selection/SelectionMenu";
import SelectTool from "../components/tools/SelectTool";
import { useUserId } from "../contexts/UserIdContext";
import {
SelectionItemsChangeEventHandler,
SelectionItemsCreateEventHandler,
SelectionItemsRemoveEventHandler,
} from "../types/Events";
import { Map, MapToolId } from "../types/Map";
import { MapState } from "../types/MapState";
import { Selection } from "../types/Select";
import { SelectToolSettings } from "../types/Select";
function useMapSelection(
map: Map | null,
mapState: MapState | null,
onSelectionItemsChange: SelectionItemsChangeEventHandler,
onSelectionItemsRemove: SelectionItemsRemoveEventHandler,
onSelectionItemsCreate: SelectionItemsCreateEventHandler,
selectedToolId: MapToolId,
settings: SelectToolSettings
) {
const userId = useUserId();
const disabledTokens: Record<string, boolean> = {};
const disabledNotes: Record<string, boolean> = {};
if (mapState && map && map.owner !== userId) {
if (!mapState.editFlags.includes("tokens")) {
for (let token of Object.values(mapState.tokens)) {
if (token.owner !== userId) {
disabledTokens[token.id] = true;
}
}
}
if (!mapState.editFlags.includes("notes")) {
for (let note of Object.values(mapState.notes)) {
disabledNotes[note.id] = true;
}
}
}
const [isSelectionMenuOpen, setIsSelectionMenuOpen] =
useState<boolean>(false);
const [isSelectionDragging, setIsSelectionDragging] = useState(false);
const [selection, setSelection] = useState<Selection | null>(null);
function handleSelectionMenuOpen(open: boolean) {
setIsSelectionMenuOpen(open);
}
const active = selectedToolId === "select";
// Remove selection when changing tools
useEffect(() => {
if (!active) {
setSelection(null);
setIsSelectionMenuOpen(false);
}
}, [active]);
// Remove selection when changing maps
useEffect(() => {
setSelection(null);
setIsSelectionMenuOpen(false);
}, [map]);
function handleSelectionDragStart() {
setIsSelectionDragging(true);
}
function handleSelectionDragEnd() {
setIsSelectionDragging(false);
}
function handleSelectionItemsRemove(
tokenStateIds: string[],
noteIds: string[]
) {
setSelection(null);
onSelectionItemsRemove(tokenStateIds, noteIds);
}
const selectionTool = map ? (
<SelectTool
active={active}
toolSettings={settings}
onSelectionItemsChange={onSelectionItemsChange}
selection={selection}
onSelectionChange={setSelection}
onSelectionMenuOpen={handleSelectionMenuOpen}
onSelectionDragStart={handleSelectionDragStart}
onSelectionDragEnd={handleSelectionDragEnd}
disabledTokens={disabledTokens}
disabledNotes={disabledNotes}
map={map}
/>
) : null;
const selectionMenu = (
<SelectionMenu
isOpen={isSelectionMenuOpen}
active={active}
onRequestClose={() => setIsSelectionMenuOpen(false)}
onRequestOpen={() => setIsSelectionMenuOpen(true)}
selection={selection}
onSelectionChange={setSelection}
onSelectionItemsChange={onSelectionItemsChange}
onSelectionItemsCreate={onSelectionItemsCreate}
map={map}
mapState={mapState}
/>
);
const selectionDragOverlay = selection ? (
<SelectionDragOverlay
dragging={isSelectionDragging}
selection={selection}
onSelectionItemsRemove={handleSelectionItemsRemove}
/>
) : null;
return { selectionTool, selectionMenu, selectionDragOverlay };
}
export default useMapSelection;