1 | import _extends from "@babel/runtime/helpers/esm/extends";
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2 | import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
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3 | import * as React from 'react';
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4 | import PropTypes from 'prop-types';
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5 | import clsx from 'clsx';
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6 | import debounce from '../utils/debounce';
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7 | import withStyles from '../styles/withStyles';
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8 | import isMuiElement from '../utils/isMuiElement';
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9 | export const styles = {
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10 |
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11 | root: {
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12 | boxSizing: 'border-box',
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13 | flexShrink: 0
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14 | },
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15 |
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16 |
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17 | item: {
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18 | position: 'relative',
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19 | display: 'block',
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20 |
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21 | height: '100%',
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22 | overflow: 'hidden'
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23 | },
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24 |
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25 |
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26 | imgFullHeight: {
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27 | height: '100%',
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28 | transform: 'translateX(-50%)',
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29 | position: 'relative',
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30 | left: '50%'
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31 | },
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32 |
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33 |
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34 | imgFullWidth: {
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35 | width: '100%',
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36 | position: 'relative',
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37 | transform: 'translateY(-50%)',
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38 | top: '50%'
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39 | }
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40 | };
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41 |
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42 | const fit = (imgEl, classes) => {
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43 | if (!imgEl || !imgEl.complete) {
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44 | return;
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45 | }
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46 |
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47 | if (imgEl.width / imgEl.height > imgEl.parentElement.offsetWidth / imgEl.parentElement.offsetHeight) {
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48 | imgEl.classList.remove(...classes.imgFullWidth.split(' '));
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49 | imgEl.classList.add(...classes.imgFullHeight.split(' '));
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50 | } else {
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51 | imgEl.classList.remove(...classes.imgFullHeight.split(' '));
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52 | imgEl.classList.add(...classes.imgFullWidth.split(' '));
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53 | }
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54 | };
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55 |
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56 | function ensureImageCover(imgEl, classes) {
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57 | if (!imgEl) {
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58 | return;
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59 | }
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60 |
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61 | if (imgEl.complete) {
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62 | fit(imgEl, classes);
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63 | } else {
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64 | imgEl.addEventListener('load', () => {
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65 | fit(imgEl, classes);
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66 | });
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67 | }
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68 | }
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69 |
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70 | const ImageListItem = React.forwardRef(function ImageListItem(props, ref) {
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71 |
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72 | const {
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73 | children,
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74 | classes,
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75 | className,
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76 |
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77 | cols = 1,
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78 | component: Component = 'li',
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79 |
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80 | rows = 1
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81 | } = props,
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82 | other = _objectWithoutPropertiesLoose(props, ["children", "classes", "className", "cols", "component", "rows"]);
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83 |
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84 | const imgRef = React.useRef(null);
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85 | React.useEffect(() => {
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86 | ensureImageCover(imgRef.current, classes);
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87 | });
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88 | React.useEffect(() => {
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89 | const handleResize = debounce(() => {
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90 | fit(imgRef.current, classes);
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91 | });
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92 | window.addEventListener('resize', handleResize);
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93 | return () => {
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94 | handleResize.clear();
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95 | window.removeEventListener('resize', handleResize);
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96 | };
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97 | }, [classes]);
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98 | return React.createElement(Component, _extends({
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99 | className: clsx(classes.root, className),
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100 | ref: ref
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101 | }, other), React.createElement("div", {
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102 | className: classes.item
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103 | }, React.Children.map(children, child => {
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104 | if (! React.isValidElement(child)) {
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105 | return null;
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106 | }
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107 |
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108 | if (child.type === 'img' || isMuiElement(child, ['Image'])) {
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109 | return React.cloneElement(child, {
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110 | ref: imgRef
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111 | });
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112 | }
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113 |
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114 | return child;
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115 | })));
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116 | });
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117 | process.env.NODE_ENV !== "production" ? ImageListItem.propTypes = {
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118 |
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119 |
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120 |
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121 |
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122 |
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123 | |
124 |
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125 |
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126 | children: PropTypes.node,
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127 |
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128 | |
129 |
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130 |
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131 |
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132 | classes: PropTypes.object,
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133 |
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134 | |
135 |
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136 |
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137 | className: PropTypes.string,
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138 |
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139 | |
140 |
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141 |
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142 | cols: PropTypes.number,
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143 |
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144 | |
145 |
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146 |
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147 |
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148 | component: PropTypes
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149 |
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150 | .elementType,
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151 |
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152 | |
153 |
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154 |
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155 | rows: PropTypes.number
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156 | } : void 0;
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157 | export default withStyles(styles, {
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158 | name: 'MuiImageListItem'
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159 | })(ImageListItem); |
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