NativeScript/nativescript-core/ui/animation/animation-interfaces.ts

// Types
import { View } from "../core/view";
import { PercentLength } from "../styling/style-properties";
import { Color } from "../../color";

export type Transformation = {
	property: TransformationType;
	value: TransformationValue;
};

export type TransformationType =
	| "rotate"
	| "translate"
	| "translateX"
	| "translateY"
	| "scale"
	| "scaleX"
	| "scaleY";

export type TransformationValue = Pair | number;

export type TransformFunctionsInfo = {
	translate: Pair;
	rotate: number;
	scale: Pair;
};

export type AnimationPromise = Promise<void> & Cancelable;

export interface Pair {
	x: number;
	y: number;
}

export interface Cancelable {
	cancel(): void;
}

export interface PropertyAnimation {
	target: View;
	property: string;
	value: any;
	duration?: number;
	delay?: number;
	iterations?: number;
	curve?: any;
}

export interface PropertyAnimationInfo extends PropertyAnimation {
	_propertyResetCallback?: any;
	_originalValue?: any;
}

export interface AnimationDefinition {
	target?: View;
	opacity?: number;
	backgroundColor?: Color;
	translate?: Pair;
	scale?: Pair;
	height?: PercentLength | string;
	width?: PercentLength | string;
	rotate?: number;
	duration?: number;
	delay?: number;
	iterations?: number;
	curve?: any;
}

export interface AnimationDefinitionInternal extends AnimationDefinition {
	valueSource?: "animation" | "keyframe";
}

export interface IOSView extends View {
	_suspendPresentationLayerUpdates();
	_resumePresentationLayerUpdates();
	_isPresentationLayerUpdateSuspeneded();
}