NativeScript/packages/core/ui/layouts/wrap-layout/wrap-layout-common.ts

import { WrapLayout as WrapLayoutDefinition, Orientation } from '.';
import { LayoutBase } from '../layout-base';
import { CSSType } from '../../core/view';
import { Property, makeValidator, makeParser } from '../../core/properties';
import { Length } from '../../styling/style-properties';

export * from '../layout-base';

@CSSType('WrapLayout')
export class WrapLayoutBase extends LayoutBase implements WrapLayoutDefinition {
	public orientation: Orientation;
	public itemWidth: Length;
	public itemHeight: Length;
	public effectiveItemWidth: number;
	public effectiveItemHeight: number;
}

WrapLayoutBase.prototype.recycleNativeView = 'auto';

export const itemWidthProperty = new Property<WrapLayoutBase, Length>({
	name: 'itemWidth',
	defaultValue: 'auto',
	affectsLayout: global.isIOS,
	valueConverter: (v) => Length.parse(v),
	valueChanged: (target, oldValue, newValue) => (target.effectiveItemWidth = Length.toDevicePixels(newValue, -1)),
});
itemWidthProperty.register(WrapLayoutBase);

export const itemHeightProperty = new Property<WrapLayoutBase, Length>({
	name: 'itemHeight',
	defaultValue: 'auto',
	affectsLayout: global.isIOS,
	valueConverter: (v) => Length.parse(v),
	valueChanged: (target, oldValue, newValue) => (target.effectiveItemHeight = Length.toDevicePixels(newValue, -1)),
});
itemHeightProperty.register(WrapLayoutBase);

const converter = makeParser<Orientation>(makeValidator<Orientation>('horizontal', 'vertical'));
export const orientationProperty = new Property<WrapLayoutBase, Orientation>({
	name: 'orientation',
	defaultValue: 'horizontal',
	affectsLayout: global.isIOS,
	valueConverter: converter,
});
orientationProperty.register(WrapLayoutBase);