@wordpress/components/build-module/custom-gradient-picker/index.js

UI components for WordPress.

import { createElement } from "@wordpress/element";

/**
 * External dependencies
 */
import classnames from 'classnames';

/**
 * WordPress dependencies
 */
import deprecated from '@wordpress/deprecated';
import { __ } from '@wordpress/i18n';
/**
 * Internal dependencies
 */

import AnglePickerControl from '../angle-picker-control';
import CustomGradientBar from './gradient-bar';
import { Flex } from '../flex';
import SelectControl from '../select-control';
import { VStack } from '../v-stack';
import { getGradientAstWithDefault, getLinearGradientRepresentation, getGradientAstWithControlPoints, getStopCssColor } from './utils';
import { serializeGradient } from './serializer';
import { DEFAULT_LINEAR_GRADIENT_ANGLE, HORIZONTAL_GRADIENT_ORIENTATION, GRADIENT_OPTIONS } from './constants';
import { AccessoryWrapper, SelectWrapper } from './styles/custom-gradient-picker-styles';

const GradientAnglePicker = _ref => {
  var _gradientAST$orientat, _gradientAST$orientat2;

  let {
    gradientAST,
    hasGradient,
    onChange
  } = _ref;
  const angle = (_gradientAST$orientat = gradientAST === null || gradientAST === void 0 ? void 0 : (_gradientAST$orientat2 = gradientAST.orientation) === null || _gradientAST$orientat2 === void 0 ? void 0 : _gradientAST$orientat2.value) !== null && _gradientAST$orientat !== void 0 ? _gradientAST$orientat : DEFAULT_LINEAR_GRADIENT_ANGLE;

  const onAngleChange = newAngle => {
    onChange(serializeGradient({ ...gradientAST,
      orientation: {
        type: 'angular',
        value: `${newAngle}`
      }
    }));
  };

  return createElement(AnglePickerControl, {
    __nextHasNoMarginBottom: true,
    onChange: onAngleChange,
    value: hasGradient ? angle : ''
  });
};

const GradientTypePicker = _ref2 => {
  let {
    gradientAST,
    hasGradient,
    onChange
  } = _ref2;
  const {
    type
  } = gradientAST;

  const onSetLinearGradient = () => {
    onChange(serializeGradient({ ...gradientAST,
      orientation: gradientAST.orientation ? undefined : HORIZONTAL_GRADIENT_ORIENTATION,
      type: 'linear-gradient'
    }));
  };

  const onSetRadialGradient = () => {
    const {
      orientation,
      ...restGradientAST
    } = gradientAST;
    onChange(serializeGradient({ ...restGradientAST,
      type: 'radial-gradient'
    }));
  };

  const handleOnChange = next => {
    if (next === 'linear-gradient') {
      onSetLinearGradient();
    }

    if (next === 'radial-gradient') {
      onSetRadialGradient();
    }
  };

  return createElement(SelectControl, {
    __nextHasNoMarginBottom: true,
    className: "components-custom-gradient-picker__type-picker",
    label: __('Type'),
    labelPosition: "top",
    onChange: handleOnChange,
    options: GRADIENT_OPTIONS,
    size: "__unstable-large",
    value: hasGradient ? type : undefined
  });
};
/**
 * CustomGradientPicker is a React component that renders a UI for specifying
 * linear or radial gradients. Radial gradients are displayed in the picker as
 * a slice of the gradient from the center to the outside.
 *
 * ```jsx
 * import { CustomGradientPicker } from '@wordpress/components';
 * import { useState } from '@wordpress/element';
 *
 * const MyCustomGradientPicker = () => {
 *   const [ gradient, setGradient ] = useState();
 *
 *   return (
 *     <CustomGradientPicker
 *			value={ gradient }
 *			onChange={ setGradient }
 *     />
 *   );
 * };
 * ```
 */


export function CustomGradientPicker(_ref3) {
  let {
    /** Start opting into the new margin-free styles that will become the default in a future version. */
    __nextHasNoMargin = false,
    value,
    onChange,
    __experimentalIsRenderedInSidebar = false
  } = _ref3;
  const {
    gradientAST,
    hasGradient
  } = getGradientAstWithDefault(value); // On radial gradients the bar should display a linear gradient.
  // On radial gradients the bar represents a slice of the gradient from the center until the outside.
  // On liner gradients the bar represents the color stops from left to right independently of the angle.

  const background = getLinearGradientRepresentation(gradientAST); // Control points color option may be hex from presets, custom colors will be rgb.
  // The position should always be a percentage.

  const controlPoints = gradientAST.colorStops.map(colorStop => {
    return {
      color: getStopCssColor(colorStop),
      // Although it's already been checked by `hasUnsupportedLength` in `getGradientAstWithDefault`,
      // TypeScript doesn't know that `colorStop.length` is not undefined here.
      // @ts-expect-error
      position: parseInt(colorStop.length.value)
    };
  });

  if (!__nextHasNoMargin) {
    deprecated('Outer margin styles for wp.components.CustomGradientPicker', {
      since: '6.1',
      version: '6.4',
      hint: 'Set the `__nextHasNoMargin` prop to true to start opting into the new styles, which will become the default in a future version'
    });
  }

  return createElement(VStack, {
    spacing: 4,
    className: classnames('components-custom-gradient-picker', {
      'is-next-has-no-margin': __nextHasNoMargin
    })
  }, createElement(CustomGradientBar, {
    __experimentalIsRenderedInSidebar: __experimentalIsRenderedInSidebar,
    background: background,
    hasGradient: hasGradient,
    value: controlPoints,
    onChange: newControlPoints => {
      onChange(serializeGradient(getGradientAstWithControlPoints(gradientAST, newControlPoints)));
    }
  }), createElement(Flex, {
    gap: 3,
    className: "components-custom-gradient-picker__ui-line"
  }, createElement(SelectWrapper, null, createElement(GradientTypePicker, {
    gradientAST: gradientAST,
    hasGradient: hasGradient,
    onChange: onChange
  })), createElement(AccessoryWrapper, null, gradientAST.type === 'linear-gradient' && createElement(GradientAnglePicker, {
    gradientAST: gradientAST,
    hasGradient: hasGradient,
    onChange: onChange
  }))));
}
export default CustomGradientPicker;
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