1import * as React from 'react';
2import { View } from 'react-native';
3import normalizeColor from 'react-native-web/src/modules/normalizeColor';
4export default function NativeLinearGradient({ colors, locations, startPoint, endPoint, ...props }) {
5    const [layout, setLayout] = React.useState(null);
6    const { width = 1, height = 1 } = layout ?? {};
7    const pseudoAngle = React.useMemo(() => {
8        const getControlPoints = () => {
9            let correctedStartPoint = [0, 0];
10            if (Array.isArray(startPoint)) {
11                correctedStartPoint = [
12                    startPoint[0] != null ? startPoint[0] : 0.0,
13                    startPoint[1] != null ? startPoint[1] : 0.0,
14                ];
15            }
16            let correctedEndPoint = [0.0, 1.0];
17            if (Array.isArray(endPoint)) {
18                correctedEndPoint = [
19                    endPoint[0] != null ? endPoint[0] : 0.0,
20                    endPoint[1] != null ? endPoint[1] : 1.0,
21                ];
22            }
23            return [correctedStartPoint, correctedEndPoint];
24        };
25        const [start, end] = getControlPoints();
26        start[0] *= width;
27        end[0] *= width;
28        start[1] *= height;
29        end[1] *= height;
30        const py = end[1] - start[1];
31        const px = end[0] - start[0];
32        return 90 + (Math.atan2(py, px) * 180) / Math.PI;
33    }, [width, height, startPoint, endPoint]);
34    const gradientColors = React.useMemo(() => {
35        return colors.map((color, index) => {
36            const hexColor = normalizeColor(color);
37            let output = hexColor;
38            if (locations && locations[index]) {
39                const location = Math.max(0, Math.min(1, locations[index]));
40                // Convert 0...1 to 0...100
41                const percentage = location * 100;
42                output += ` ${percentage}%`;
43            }
44            return output;
45        });
46    }, [colors, locations]);
47    const colorStyle = gradientColors.join(',');
48    const backgroundImage = `linear-gradient(${pseudoAngle}deg, ${colorStyle})`;
49    // TODO(Bacon): In the future we could consider adding `backgroundRepeat: "no-repeat"`. For more
50    // browser support.
51    return (React.createElement(View, { ...props, style: [
52            props.style,
53            // @ts-ignore: [ts] Property 'backgroundImage' does not exist on type 'ViewStyle'.
54            { backgroundImage },
55        ], onLayout: (event) => {
56            const { x, y, width, height } = event.nativeEvent.layout;
57            const oldLayout = layout ?? { x: 0, y: 0, width: 1, height: 1 };
58            // don't set new layout state unless the layout has actually changed
59            if (x !== oldLayout.x ||
60                y !== oldLayout.y ||
61                width !== oldLayout.width ||
62                height !== oldLayout.height) {
63                setLayout({ x, y, width, height });
64            }
65            if (props.onLayout) {
66                props.onLayout(event);
67            }
68        } }));
69}
70//# sourceMappingURL=NativeLinearGradient.web.js.map