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selection-shortcuts-hoc.tsx
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selection-shortcuts-hoc.tsx
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import React, {PureComponent, ComponentType} from 'react';
import PropTypes from 'prop-types';
import {ShortcutsMap} from '../shortcuts/core';
import Selection, {SelectionItem} from './selection';
export interface SelectionShortcutsOuterProps<T extends SelectionItem> {
selection: Selection<T>
selectable?: boolean | undefined
onSelect?: ((selection: Selection<T>) => void) | undefined
shortcuts?: ShortcutsMap | undefined
}
export interface SelectionShortcutsAddProps<T extends SelectionItem> {
selection: Selection<T>
selectable: boolean
onSelect: (selection: Selection<T>) => void
shortcutsMap: ShortcutsMap
}
function extractPropTypes<
T extends SelectionItem,
P extends SelectionShortcutsAddProps<T>
>({propTypes}: ComponentType<P>) {
if (propTypes == null) {
return propTypes;
}
const {selection, selectable, onSelect, shortcutsMap, ...restPropTypes} = propTypes;
return restPropTypes;
}
export type SelectionShortcutsProps<T extends SelectionItem, P> =
Omit<P, keyof SelectionShortcutsAddProps<T>> & SelectionShortcutsOuterProps<T>
export default function selectionShortcutsHOC<
T extends SelectionItem,
P extends SelectionShortcutsAddProps<T>
>(ComposedComponent: ComponentType<P>): ComponentType<SelectionShortcutsProps<T, P>> {
class SelectionShortcuts extends PureComponent<SelectionShortcutsProps<T, P>> {
onUpPress = () => {
const {selection, onSelect} = this.props;
const newSelection = selection.moveUp();
if (newSelection) {
onSelect?.(newSelection);
}
return false;
};
onDownPress = () => {
const {selection, onSelect} = this.props;
const newSelection = selection.moveDown();
if (newSelection) {
onSelect?.(newSelection);
}
return false;
};
shiftSelectionMode?: 'deletion' | 'addition';
onShiftKeyDown = () => {
const {selection} = this.props;
if (selection.isSelected(selection.getFocused())) {
this.shiftSelectionMode = 'deletion';
} else {
this.shiftSelectionMode = 'addition';
}
};
shiftSelect = (selection: Selection<T>) => {
if (this.shiftSelectionMode === 'addition') {
return selection.select();
} else {
return selection.deselect();
}
};
onShiftUpPress = (e: KeyboardEvent) => {
e.preventDefault();
const {selectable, selection, onSelect} = this.props;
if (!selectable) {
return;
}
const newSelection = this.shiftSelect(selection);
const newMovedSelection = newSelection.moveUp();
if (newMovedSelection) {
onSelect?.(newMovedSelection);
} else {
onSelect?.(newSelection);
}
};
onShiftDownPress = (e: KeyboardEvent) => {
e.preventDefault();
const {selectable, selection, onSelect} = this.props;
if (!selectable) {
return;
}
const newSelection = this.shiftSelect(selection);
const newMovedSelection = newSelection.moveDown();
if (newMovedSelection) {
onSelect?.(newMovedSelection);
} else {
onSelect?.(newSelection);
}
};
onHomePress = () => {
const {selection, onSelect} = this.props;
const newSelection = selection.moveStart();
if (newSelection) {
onSelect?.(newSelection);
}
return false;
};
onEndPress = () => {
const {selection, onSelect} = this.props;
const newSelection = selection.moveEnd();
if (newSelection) {
onSelect?.(newSelection);
}
return false;
};
onSpacePress = () => {
const {selectable, selection, onSelect} = this.props;
if (!selectable) {
return true;
}
onSelect?.(selection.toggleSelection());
return false;
};
onEscPress = () => {
const {selection, onSelect} = this.props;
onSelect?.(selection.reset());
//this.restoreFocusWithoutScroll();
};
onCmdAPress = () => {
const {selectable, selection, onSelect} = this.props;
if (!selectable) {
return true;
}
onSelect?.(selection.selectAll());
return false;
};
shortcutsMap = {
up: this.onUpPress,
down: this.onDownPress,
shift: this.onShiftKeyDown,
'shift+up': this.onShiftUpPress,
'shift+down': this.onShiftDownPress,
home: this.onHomePress,
end: this.onEndPress,
space: this.onSpacePress,
esc: this.onEscPress,
'command+a': this.onCmdAPress,
'ctrl+a': this.onCmdAPress
};
render() {
const {selection, selectable, onSelect, shortcuts, ...restProps} = this.props;
return (
<ComposedComponent
{...restProps as P}
selection={selection}
selectable={selectable}
onSelect={onSelect}
shortcutsMap={{...this.shortcutsMap, ...this.props.shortcuts}}
/>
);
}
}
(SelectionShortcuts as ComponentType<unknown>).propTypes = {
...extractPropTypes<T, P>(ComposedComponent),
selection: PropTypes.instanceOf(Selection).isRequired,
selectable: PropTypes.bool,
onSelect: PropTypes.func,
shortcuts: PropTypes.object
};
(SelectionShortcuts as ComponentType<unknown>).defaultProps = {
...ComposedComponent.defaultProps,
selectable: true,
onSelect: () => {},
shortcuts: {}
};
return SelectionShortcuts;
}